TY  - JOUR
AU  - Ivanovska, Aleksandra
AU  - Asanović, Koviljka
AU  - Jankoska, Maja
AU  - Pavlović, Sanja
AU  - Poparić, Goran
AU  - Kostić, Mirjana
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5205
AB  - This work aimed to obtain jute fabrics suitable for the production of inexpensive technical textiles by using simple alkali treatments. The influences of alkali concentration (1–17.5 % NaOH) and treatment duration (5–30 min) on the fabrics’ compression properties, abrasion resistance, and sound absorption coefficient were studied in detail. With increasing the treatment severity, the fabric compressibility decreases by 19.6–33.9 % due to increased fabric compactness. In parallel, the fiber crystallinity index and hemicellulose content decrease, while the fibers’ interfibrillar regions become less dense and less rigid contributing to 19.0–27.0 % better recoverability after compression. The mercerized fabrics possessed a notably lower mass loss (4.1–5.9 %) after 750 abrasion cycles compared to the other investigated fabrics (18.9–30.9 %), which could be ascribed to the higher friction forces existing between the yarns within the mercerized fabrics and between the fibers within the yarns, as well as higher elongation at maximum force. In the case of the fabrics treated for 5 or 15 min with different NaOH concentrations, their mass losses during abrasion decrease with increasing the elementary fiber liberation, while the sound absorption coefficients increase with increasing the fabric compactness. Mercerized fabrics are capable of absorbing about 28 % to 2.7 times (at 990 Hz) and 2.0 to 2.4 times (at 4090 Hz) higher mechanical sound energy compared to the untreated fabric. The jute fabric mercerized during 30 min could be used for the production of carpet backings, while those mercerized during 5 min is the most suitable for the production of sound-absorbing materials.
PB  - Korean Fiber Society
T2  - Fibers and Polymers
T1  - Alkali Treated Jute Fabrics Suitable for the Production of Inexpensive Technical Textiles
EP  - 2315
IS  - 8
SP  - 2306
VL  - 23
DO  - 10.1007/s12221-022-4068-5
ER  - 

@article{
author = "Ivanovska, Aleksandra and Asanović, Koviljka and Jankoska, Maja and Pavlović, Sanja and Poparić, Goran and Kostić, Mirjana",
year = "2022",
abstract = "This work aimed to obtain jute fabrics suitable for the production of inexpensive technical textiles by using simple alkali treatments. The influences of alkali concentration (1–17.5 % NaOH) and treatment duration (5–30 min) on the fabrics’ compression properties, abrasion resistance, and sound absorption coefficient were studied in detail. With increasing the treatment severity, the fabric compressibility decreases by 19.6–33.9 % due to increased fabric compactness. In parallel, the fiber crystallinity index and hemicellulose content decrease, while the fibers’ interfibrillar regions become less dense and less rigid contributing to 19.0–27.0 % better recoverability after compression. The mercerized fabrics possessed a notably lower mass loss (4.1–5.9 %) after 750 abrasion cycles compared to the other investigated fabrics (18.9–30.9 %), which could be ascribed to the higher friction forces existing between the yarns within the mercerized fabrics and between the fibers within the yarns, as well as higher elongation at maximum force. In the case of the fabrics treated for 5 or 15 min with different NaOH concentrations, their mass losses during abrasion decrease with increasing the elementary fiber liberation, while the sound absorption coefficients increase with increasing the fabric compactness. Mercerized fabrics are capable of absorbing about 28 % to 2.7 times (at 990 Hz) and 2.0 to 2.4 times (at 4090 Hz) higher mechanical sound energy compared to the untreated fabric. The jute fabric mercerized during 30 min could be used for the production of carpet backings, while those mercerized during 5 min is the most suitable for the production of sound-absorbing materials.",
publisher = "Korean Fiber Society",
journal = "Fibers and Polymers",
title = "Alkali Treated Jute Fabrics Suitable for the Production of Inexpensive Technical Textiles",
pages = "2315-2306",
number = "8",
volume = "23",
doi = "10.1007/s12221-022-4068-5"
}

Ivanovska, A., Asanović, K., Jankoska, M., Pavlović, S., Poparić, G.,& Kostić, M.. (2022). Alkali Treated Jute Fabrics Suitable for the Production of Inexpensive Technical Textiles. in Fibers and Polymers
Korean Fiber Society., 23(8), 2306-2315.
https://doi.org/10.1007/s12221-022-4068-5

Ivanovska A, Asanović K, Jankoska M, Pavlović S, Poparić G, Kostić M. Alkali Treated Jute Fabrics Suitable for the Production of Inexpensive Technical Textiles. in Fibers and Polymers. 2022;23(8):2306-2315.
doi:10.1007/s12221-022-4068-5 .

Ivanovska, Aleksandra, Asanović, Koviljka, Jankoska, Maja, Pavlović, Sanja, Poparić, Goran, Kostić, Mirjana, "Alkali Treated Jute Fabrics Suitable for the Production of Inexpensive Technical Textiles" in Fibers and Polymers, 23, no. 8 (2022):2306-2315,
https://doi.org/10.1007/s12221-022-4068-5 . .

TY  - JOUR
AU  - Stanković, Snežana B.
AU  - Pavlović, Sanja
AU  - Bizjak, Matejka
AU  - Popović, Dušan M.
AU  - Poparić, Goran B.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6599
AB  - In the present research, folding of yarns was applied as a method for designing thermal transport characteristics of hemp-based knits. The rib-knitted fabrics were made by combining one of two cotton two-folded yarns (differing in folding twist) with one of the two complex hemp yarns. The parameters describing the thermal properties in the steady-state and transient regimes of heat transfer were determined. The results indicated that the packing density of the fibers in the yarn plays a crucial role in the heat conduction through the fabric. The two-assembled hemp component appeared to be the main heat conductor in the knitted fabrics containing it. Between the knits composed of the two-folded hemp and two-folded cotton yarns, that having two-folded more twisted cotton yarn as a component was characterized by higher thermal conductivity. The higher thermal conductivity resulted in higher thermal absorptivity, but not necessarily in higher thermal diffusivity, as the increased volumetric heat capacity may limit the speed of heat spreading through the fabric. Therefore, the knits containing two-assembled hemp yarn differed in thermal diffusivity despite their similar thermal conductivity. Both knits with the two-folded more twisted cotton yarn as a component had similar thermal diffusivity despite their different thermal conductivity.
PB  - Taylor and Francis Ltd.
T2  - Journal of Natural Fibers
T1  - Thermal Design Method for Optimization of Dry Heat Transfer through Hemp-Based Knitted Fabrics
EP  - 12167
IS  - 15
SP  - 12155
VL  - 19
DO  - 10.1080/15440478.2022.2052393
ER  - 

@article{
author = "Stanković, Snežana B. and Pavlović, Sanja and Bizjak, Matejka and Popović, Dušan M. and Poparić, Goran B.",
year = "2022",
abstract = "In the present research, folding of yarns was applied as a method for designing thermal transport characteristics of hemp-based knits. The rib-knitted fabrics were made by combining one of two cotton two-folded yarns (differing in folding twist) with one of the two complex hemp yarns. The parameters describing the thermal properties in the steady-state and transient regimes of heat transfer were determined. The results indicated that the packing density of the fibers in the yarn plays a crucial role in the heat conduction through the fabric. The two-assembled hemp component appeared to be the main heat conductor in the knitted fabrics containing it. Between the knits composed of the two-folded hemp and two-folded cotton yarns, that having two-folded more twisted cotton yarn as a component was characterized by higher thermal conductivity. The higher thermal conductivity resulted in higher thermal absorptivity, but not necessarily in higher thermal diffusivity, as the increased volumetric heat capacity may limit the speed of heat spreading through the fabric. Therefore, the knits containing two-assembled hemp yarn differed in thermal diffusivity despite their similar thermal conductivity. Both knits with the two-folded more twisted cotton yarn as a component had similar thermal diffusivity despite their different thermal conductivity.",
publisher = "Taylor and Francis Ltd.",
journal = "Journal of Natural Fibers",
title = "Thermal Design Method for Optimization of Dry Heat Transfer through Hemp-Based Knitted Fabrics",
pages = "12167-12155",
number = "15",
volume = "19",
doi = "10.1080/15440478.2022.2052393"
}

Stanković, S. B., Pavlović, S., Bizjak, M., Popović, D. M.,& Poparić, G. B.. (2022). Thermal Design Method for Optimization of Dry Heat Transfer through Hemp-Based Knitted Fabrics. in Journal of Natural Fibers
Taylor and Francis Ltd.., 19(15), 12155-12167.
https://doi.org/10.1080/15440478.2022.2052393

Stanković SB, Pavlović S, Bizjak M, Popović DM, Poparić GB. Thermal Design Method for Optimization of Dry Heat Transfer through Hemp-Based Knitted Fabrics. in Journal of Natural Fibers. 2022;19(15):12155-12167.
doi:10.1080/15440478.2022.2052393 .

Stanković, Snežana B., Pavlović, Sanja, Bizjak, Matejka, Popović, Dušan M., Poparić, Goran B., "Thermal Design Method for Optimization of Dry Heat Transfer through Hemp-Based Knitted Fabrics" in Journal of Natural Fibers, 19, no. 15 (2022):12155-12167,
https://doi.org/10.1080/15440478.2022.2052393 . .

TY  - JOUR
AU  - Novaković, Milada
AU  - Popović, Dušan M.
AU  - Mladenović, Nenad
AU  - Poparić, Goran B.
AU  - Stanković, Snežana
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4499
AB  - Considering specific mechanical, hygienic and protective properties of hemp, as well as its positive
sustainability aspects, the raising role of hemp fibres in the textile sector can be expected. The limited
deformability of hemp fibres, which has a negative influence on the tactile comfort, can be overcome by
blending them with other soft fibres. In this project, an attempt was made to overcome this limitation by
blending them with soft and warm acrylic fibres so as to avoid any chemical treatments with softeners.
The composition of the knitted fabrics was designed at the knitting production stage, offering the
knitwear factories a new possibility for fibre blending. The produced single jersey knitted fabrics were
evaluated in terms of their thermal behaviour in both steady-state and transient conditions. Since this
type of knitted fabrics is prone to dimensional changes and distortion upon repeated laundering, the
undershirts made thereof were subjected to the wear trial test (repeated wear and care cycles) in real life
situations, in order to assess changes in the thermal properties of the knitted fabrics. Observed changes
in the geometry of the knitted fabrics and morphology of the fibres after a period of wear and care of the
undershirts have had positive effects on the thermal properties of the hemp based knits. Hemp/acrylic
knitted fabric has undergone the biggest change in the geometry, but moderate change in thermal
properties comparing to those of the hemp knit. The values of thermal parameters of the hemp/acrylic
knit after repeated wear and care cycles which were in the range of those of the hemp knit before the
wear trial test, confirmed that the hemp-blend proposed by this study would follow the trend of good
hemp thermal behaviour in terms of comfort at the exploitation stage. The presented results offer a
product design strategy to increase the performance, economic and environmental benefits for both the
producers and consumers.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of Cleaner Production
T1  - Development of comfortable and eco-friendly cellulose based textiles with improved sustainability
VL  - 267
DO  - 10.1016/j.jclepro.2020.122154
ER  - 

@article{
author = "Novaković, Milada and Popović, Dušan M. and Mladenović, Nenad and Poparić, Goran B. and Stanković, Snežana",
year = "2020",
abstract = "Considering specific mechanical, hygienic and protective properties of hemp, as well as its positive
sustainability aspects, the raising role of hemp fibres in the textile sector can be expected. The limited
deformability of hemp fibres, which has a negative influence on the tactile comfort, can be overcome by
blending them with other soft fibres. In this project, an attempt was made to overcome this limitation by
blending them with soft and warm acrylic fibres so as to avoid any chemical treatments with softeners.
The composition of the knitted fabrics was designed at the knitting production stage, offering the
knitwear factories a new possibility for fibre blending. The produced single jersey knitted fabrics were
evaluated in terms of their thermal behaviour in both steady-state and transient conditions. Since this
type of knitted fabrics is prone to dimensional changes and distortion upon repeated laundering, the
undershirts made thereof were subjected to the wear trial test (repeated wear and care cycles) in real life
situations, in order to assess changes in the thermal properties of the knitted fabrics. Observed changes
in the geometry of the knitted fabrics and morphology of the fibres after a period of wear and care of the
undershirts have had positive effects on the thermal properties of the hemp based knits. Hemp/acrylic
knitted fabric has undergone the biggest change in the geometry, but moderate change in thermal
properties comparing to those of the hemp knit. The values of thermal parameters of the hemp/acrylic
knit after repeated wear and care cycles which were in the range of those of the hemp knit before the
wear trial test, confirmed that the hemp-blend proposed by this study would follow the trend of good
hemp thermal behaviour in terms of comfort at the exploitation stage. The presented results offer a
product design strategy to increase the performance, economic and environmental benefits for both the
producers and consumers.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of Cleaner Production",
title = "Development of comfortable and eco-friendly cellulose based textiles with improved sustainability",
volume = "267",
doi = "10.1016/j.jclepro.2020.122154"
}

Novaković, M., Popović, D. M., Mladenović, N., Poparić, G. B.,& Stanković, S.. (2020). Development of comfortable and eco-friendly cellulose based textiles with improved sustainability. in Journal of Cleaner Production
Elsevier Sci Ltd, Oxford., 267.
https://doi.org/10.1016/j.jclepro.2020.122154

Novaković M, Popović DM, Mladenović N, Poparić GB, Stanković S. Development of comfortable and eco-friendly cellulose based textiles with improved sustainability. in Journal of Cleaner Production. 2020;267.
doi:10.1016/j.jclepro.2020.122154 .

Novaković, Milada, Popović, Dušan M., Mladenović, Nenad, Poparić, Goran B., Stanković, Snežana, "Development of comfortable and eco-friendly cellulose based textiles with improved sustainability" in Journal of Cleaner Production, 267 (2020),
https://doi.org/10.1016/j.jclepro.2020.122154 . .

TY  - JOUR
AU  - Kocić, Ana
AU  - Bizjak, Matejka
AU  - Popović, Dušan M.
AU  - Poparić, Goran B.
AU  - Stanković, Snežana
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4215
AB  - In the last decades the media have highlighted the ozone depletion as major environmental problem resulting in an increase in ultraviolet radiation (UVR) reaching the earth's surface. Besides the beneficial effects of human exposure to UVR, this radiation is capable of causing damage to human population. The healthy lifestyle is becoming widely accepted by the public, and the UV protection provided by clothing becomes the significant subject of interest of the producers and consumers of textile fabrics. Natural cellulose fibres are commonly used in summer clothing due to their excellent comfort properties. However, these fibres have very poor UV protection ability. In this project, the UV protection property of textile fabrics made of natural and regenerated cellulose fibres have been compared and analysed in order to highlight the potential of hemp fibre for the development of more sustainable and healthy functionalized (UV protective) textile products. A group of homogeneous and blended cellulose textile fabrics were manufactured in a knitwear factory, evaluated in terms of the structure, and spectrophotometrically assessed to indicate their UV protection ability. The knitted fabrics merited sun protection ratings of "good" for pure hemp, through "very good" for viscose containing fabrics to "excellent" UV protection category for cotton based fabrics. Relatively high values of the Ultraviolet Protection Factor (UPF) of the cellulose. materials resulted from the interaction of fibre type, yarn geometry, fabric properties and common processing techniques. The increased UVR transparency of the pure hemp fabric, which resulted from hemp elasticity limitations, overcame by blending with other softer and more elastic cellulose fibres (cotton, viscose). The engineering approach proposed in this study was confirmed as an effective way to create more sustainable (more sustainable resource, pollution prevention, energy and cost savings) textile products with high level of UV protection at the knitting production stage avoiding the use of any additional mechanical and chemical treatments. These results revealed that the future application of hemp fibres in textile products with high added-value are promising. A co-ordinated effort of different subjects of the agro-and textile-industry production chain need to continue so as to overcome the limitations associated with hemp production and fibres properties.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of Cleaner Production
T1  - UV protection afforded by textile fabrics made of natural and regenerated cellulose fibres
EP  - 1237
SP  - 1229
VL  - 228
DO  - 10.1016/j.jclepro.2019.04.355
ER  - 

@article{
author = "Kocić, Ana and Bizjak, Matejka and Popović, Dušan M. and Poparić, Goran B. and Stanković, Snežana",
year = "2019",
abstract = "In the last decades the media have highlighted the ozone depletion as major environmental problem resulting in an increase in ultraviolet radiation (UVR) reaching the earth's surface. Besides the beneficial effects of human exposure to UVR, this radiation is capable of causing damage to human population. The healthy lifestyle is becoming widely accepted by the public, and the UV protection provided by clothing becomes the significant subject of interest of the producers and consumers of textile fabrics. Natural cellulose fibres are commonly used in summer clothing due to their excellent comfort properties. However, these fibres have very poor UV protection ability. In this project, the UV protection property of textile fabrics made of natural and regenerated cellulose fibres have been compared and analysed in order to highlight the potential of hemp fibre for the development of more sustainable and healthy functionalized (UV protective) textile products. A group of homogeneous and blended cellulose textile fabrics were manufactured in a knitwear factory, evaluated in terms of the structure, and spectrophotometrically assessed to indicate their UV protection ability. The knitted fabrics merited sun protection ratings of "good" for pure hemp, through "very good" for viscose containing fabrics to "excellent" UV protection category for cotton based fabrics. Relatively high values of the Ultraviolet Protection Factor (UPF) of the cellulose. materials resulted from the interaction of fibre type, yarn geometry, fabric properties and common processing techniques. The increased UVR transparency of the pure hemp fabric, which resulted from hemp elasticity limitations, overcame by blending with other softer and more elastic cellulose fibres (cotton, viscose). The engineering approach proposed in this study was confirmed as an effective way to create more sustainable (more sustainable resource, pollution prevention, energy and cost savings) textile products with high level of UV protection at the knitting production stage avoiding the use of any additional mechanical and chemical treatments. These results revealed that the future application of hemp fibres in textile products with high added-value are promising. A co-ordinated effort of different subjects of the agro-and textile-industry production chain need to continue so as to overcome the limitations associated with hemp production and fibres properties.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of Cleaner Production",
title = "UV protection afforded by textile fabrics made of natural and regenerated cellulose fibres",
pages = "1237-1229",
volume = "228",
doi = "10.1016/j.jclepro.2019.04.355"
}

Kocić, A., Bizjak, M., Popović, D. M., Poparić, G. B.,& Stanković, S.. (2019). UV protection afforded by textile fabrics made of natural and regenerated cellulose fibres. in Journal of Cleaner Production
Elsevier Sci Ltd, Oxford., 228, 1229-1237.
https://doi.org/10.1016/j.jclepro.2019.04.355

Kocić A, Bizjak M, Popović DM, Poparić GB, Stanković S. UV protection afforded by textile fabrics made of natural and regenerated cellulose fibres. in Journal of Cleaner Production. 2019;228:1229-1237.
doi:10.1016/j.jclepro.2019.04.355 .

Kocić, Ana, Bizjak, Matejka, Popović, Dušan M., Poparić, Goran B., Stanković, Snežana, "UV protection afforded by textile fabrics made of natural and regenerated cellulose fibres" in Journal of Cleaner Production, 228 (2019):1229-1237,
https://doi.org/10.1016/j.jclepro.2019.04.355 . .

TY  - JOUR
AU  - Stanković, Snežana
AU  - Novaković, Milada
AU  - Popović, Dušan M.
AU  - Poparić, Goran B.
AU  - Bizjak, Matejka
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4229
AB  - The aim of this research was to investigate the possibilities of producing comfort hemp containing textile fabrics by assembling a pure hemp yarn with other-fibre containing yarn. The plain knitted fabrics were produced from two-assembled hemp and three variants of cotton yarns which differed in twist level, all having the same linear density. The transport properties (air permeability, water vapour permeability and thermal resistance) of the hemp-based knitted fabrics were quantitatively analysed. The results obtained demonstrated that the introduction of cotton into hemp-based textiles reduces air and water vapour permeability with the downward trend in thermal resistance. The extent to which the transport properties varied among the hemp/cotton knitted fabrics was dependent on the twist intensity of the cotton yarns. Therefore, the yarn assembling technique is an effective way not only to combine different fibre properties but to take advantage of intrinsic properties of component yarns.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Journal of the Textile Institute
T1  - Novel engineering approach to optimization of thermal comfort properties of hemp containing textiles
EP  - 1279
IS  - 9
SP  - 1271
VL  - 110
DO  - 10.1080/00405000.2018.1557367
ER  - 

@article{
author = "Stanković, Snežana and Novaković, Milada and Popović, Dušan M. and Poparić, Goran B. and Bizjak, Matejka",
year = "2019",
abstract = "The aim of this research was to investigate the possibilities of producing comfort hemp containing textile fabrics by assembling a pure hemp yarn with other-fibre containing yarn. The plain knitted fabrics were produced from two-assembled hemp and three variants of cotton yarns which differed in twist level, all having the same linear density. The transport properties (air permeability, water vapour permeability and thermal resistance) of the hemp-based knitted fabrics were quantitatively analysed. The results obtained demonstrated that the introduction of cotton into hemp-based textiles reduces air and water vapour permeability with the downward trend in thermal resistance. The extent to which the transport properties varied among the hemp/cotton knitted fabrics was dependent on the twist intensity of the cotton yarns. Therefore, the yarn assembling technique is an effective way not only to combine different fibre properties but to take advantage of intrinsic properties of component yarns.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Journal of the Textile Institute",
title = "Novel engineering approach to optimization of thermal comfort properties of hemp containing textiles",
pages = "1279-1271",
number = "9",
volume = "110",
doi = "10.1080/00405000.2018.1557367"
}

Stanković, S., Novaković, M., Popović, D. M., Poparić, G. B.,& Bizjak, M.. (2019). Novel engineering approach to optimization of thermal comfort properties of hemp containing textiles. in Journal of the Textile Institute
Taylor & Francis Ltd, Abingdon., 110(9), 1271-1279.
https://doi.org/10.1080/00405000.2018.1557367

Stanković S, Novaković M, Popović DM, Poparić GB, Bizjak M. Novel engineering approach to optimization of thermal comfort properties of hemp containing textiles. in Journal of the Textile Institute. 2019;110(9):1271-1279.
doi:10.1080/00405000.2018.1557367 .

Stanković, Snežana, Novaković, Milada, Popović, Dušan M., Poparić, Goran B., Bizjak, Matejka, "Novel engineering approach to optimization of thermal comfort properties of hemp containing textiles" in Journal of the Textile Institute, 110, no. 9 (2019):1271-1279,
https://doi.org/10.1080/00405000.2018.1557367 . .

TY  - JOUR
AU  - Pavlović, Sanja
AU  - Stanković, Snežana
AU  - Žekić, Andrijana
AU  - Nenadović, Miloš
AU  - Popović, Dušan M.
AU  - Milosavljević, Vladimir
AU  - Poparić, Goran B.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4238
AB  - Low-temperature plasma is widely used in many surface treatment technologies for modifications of the physical properties of different polymeric materials. In the present work, we have examined the modification of acoustical properties of natural cellulose materials (cotton, hemp) by the radio-frequency argon plasma. We have observed an increase of the sound absorption coefficient due to the plasma treatment for certain range of applied powers. An analysis of elementary processes which happened during plasma-material interaction was conducted. Additional analyses related to material characterizations were performed in order to resolve structural and chemical changes of plasma treated materials. The micro-mechanical modification of treated materials, which happened upon the retrieved structural and chemical changes, was related to the modification of its acoustical properties in order to explain the observed effect. [GRAPHICS] .
PB  - Springer, Dordrecht
T2  - Cellulose
T1  - Impact of plasma treatment on acoustic properties of natural cellulose materials
EP  - 6554
IS  - 11
SP  - 6543
VL  - 26
DO  - 10.1007/s10570-019-02547-1
ER  - 

@article{
author = "Pavlović, Sanja and Stanković, Snežana and Žekić, Andrijana and Nenadović, Miloš and Popović, Dušan M. and Milosavljević, Vladimir and Poparić, Goran B.",
year = "2019",
abstract = "Low-temperature plasma is widely used in many surface treatment technologies for modifications of the physical properties of different polymeric materials. In the present work, we have examined the modification of acoustical properties of natural cellulose materials (cotton, hemp) by the radio-frequency argon plasma. We have observed an increase of the sound absorption coefficient due to the plasma treatment for certain range of applied powers. An analysis of elementary processes which happened during plasma-material interaction was conducted. Additional analyses related to material characterizations were performed in order to resolve structural and chemical changes of plasma treated materials. The micro-mechanical modification of treated materials, which happened upon the retrieved structural and chemical changes, was related to the modification of its acoustical properties in order to explain the observed effect. [GRAPHICS] .",
publisher = "Springer, Dordrecht",
journal = "Cellulose",
title = "Impact of plasma treatment on acoustic properties of natural cellulose materials",
pages = "6554-6543",
number = "11",
volume = "26",
doi = "10.1007/s10570-019-02547-1"
}

Pavlović, S., Stanković, S., Žekić, A., Nenadović, M., Popović, D. M., Milosavljević, V.,& Poparić, G. B.. (2019). Impact of plasma treatment on acoustic properties of natural cellulose materials. in Cellulose
Springer, Dordrecht., 26(11), 6543-6554.
https://doi.org/10.1007/s10570-019-02547-1

Pavlović S, Stanković S, Žekić A, Nenadović M, Popović DM, Milosavljević V, Poparić GB. Impact of plasma treatment on acoustic properties of natural cellulose materials. in Cellulose. 2019;26(11):6543-6554.
doi:10.1007/s10570-019-02547-1 .

Pavlović, Sanja, Stanković, Snežana, Žekić, Andrijana, Nenadović, Miloš, Popović, Dušan M., Milosavljević, Vladimir, Poparić, Goran B., "Impact of plasma treatment on acoustic properties of natural cellulose materials" in Cellulose, 26, no. 11 (2019):6543-6554,
https://doi.org/10.1007/s10570-019-02547-1 . .

TY  - JOUR
AU  - Stanković, Snežana
AU  - Popović, Dušan M.
AU  - Poparić, Goran B.
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4314
AB  - Thermal properties of directionally oriented fibrous materials have been investigated in this research with the purpose of considering the influence of fibre arrangement at mesoscopic level. The range of various distributions of fibres in the fibrous materials was obtained by applying different twist intensity during spinning of cotton fibres. From various twisted cotton yarns the knitted fabrics were produced under controlled conditions, so as to obtain as similar as possible constructions. This made possible to obtain the heterogeneity of the porous fibrous structures coming from the mesoscopic level. Thermal conductivity and heat transfer coefficient of the materials were investigated. The results obtained indicate the arrangement of fibres (or their compactness, orientation and migration), which, in turn, was determined by twist intensity (mesoscopic scale), as the key factor influencing thermal properties. Yarn compactness and fibre migration, determined by lateral forces imposed by the twist inserted in yarn, affected variations in structural parameters of the knitted fabrics, and thus influenced their thermal properties. Fibre orientation manifested itself in surface geometry of the yarn was also proved to have a considerable influence on heat transfer properties.
PB  - Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd
T2  - Thermal Science
T1  - Thermal properties of directionally oriented polymer fibrous materials as a function of fibre arrangement at mesoscopic level
EP  - 3127
IS  - 5
SP  - 3117
VL  - 23
DO  - 10.2298/TSCI181011105S
ER  - 

@article{
author = "Stanković, Snežana and Popović, Dušan M. and Poparić, Goran B.",
year = "2019",
abstract = "Thermal properties of directionally oriented fibrous materials have been investigated in this research with the purpose of considering the influence of fibre arrangement at mesoscopic level. The range of various distributions of fibres in the fibrous materials was obtained by applying different twist intensity during spinning of cotton fibres. From various twisted cotton yarns the knitted fabrics were produced under controlled conditions, so as to obtain as similar as possible constructions. This made possible to obtain the heterogeneity of the porous fibrous structures coming from the mesoscopic level. Thermal conductivity and heat transfer coefficient of the materials were investigated. The results obtained indicate the arrangement of fibres (or their compactness, orientation and migration), which, in turn, was determined by twist intensity (mesoscopic scale), as the key factor influencing thermal properties. Yarn compactness and fibre migration, determined by lateral forces imposed by the twist inserted in yarn, affected variations in structural parameters of the knitted fabrics, and thus influenced their thermal properties. Fibre orientation manifested itself in surface geometry of the yarn was also proved to have a considerable influence on heat transfer properties.",
publisher = "Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd",
journal = "Thermal Science",
title = "Thermal properties of directionally oriented polymer fibrous materials as a function of fibre arrangement at mesoscopic level",
pages = "3127-3117",
number = "5",
volume = "23",
doi = "10.2298/TSCI181011105S"
}

Stanković, S., Popović, D. M.,& Poparić, G. B.. (2019). Thermal properties of directionally oriented polymer fibrous materials as a function of fibre arrangement at mesoscopic level. in Thermal Science
Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd., 23(5), 3117-3127.
https://doi.org/10.2298/TSCI181011105S

Stanković S, Popović DM, Poparić GB. Thermal properties of directionally oriented polymer fibrous materials as a function of fibre arrangement at mesoscopic level. in Thermal Science. 2019;23(5):3117-3127.
doi:10.2298/TSCI181011105S .

Stanković, Snežana, Popović, Dušan M., Poparić, Goran B., "Thermal properties of directionally oriented polymer fibrous materials as a function of fibre arrangement at mesoscopic level" in Thermal Science, 23, no. 5 (2019):3117-3127,
https://doi.org/10.2298/TSCI181011105S . .

TY  - JOUR
AU  - Stanković, Snežana
AU  - Popović, Dušan M.
AU  - Kocić, Ana
AU  - Poparić, Goran B.
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3645
AB  - It is generally accepted that synthetic fibres provide high UV protection capability of textile products, while cellulose fibres have low UV absorption capacity. However, textile materials made of synthetic fibres are not considered to be comfortable for wear in warm weather, whereas cellulose-based textile materials are considered to be much more comfortable to wear, especially in the summer months. For this research, the idea was to produce specially blended knitted fabrics from staple/filament hybrid yarns in order to provide clothing materials with effective UV protection properties, keeping satisfactory comfort properties as well. To obtain hybrid yarns, folding technique was used. The Ultraviolet Protection Factor (UPF), as a quantitative measure of the effectiveness of the material to protect human skin against UV radiation, was determined for the rib knitted fabrics by in vitro test method according to the European standard. The physical properties of the knitted fabrics related to their UV protection properties: bulk density, porosity and air permeability were also determined. The hybrid yarns, from which the rib knitted fabrics were produced, having always hemp yarn as a staple component, caused the differences in UV protection capability of the rib knitted fabrics through the influence of a filament spun component. The hybrid yarn aggregation within knitted fabrics also influenced their UPF values. Even though the pure hemp knitted fabric was marked as "UPF gt 50" (according to European standard) due to natural pigments and lignin in hemp fibres which act as UV absorbers, most of the hemp/filament hybrid yarn knitted fabrics exhibited even higher UPF. Therefore, the engineering approach proposed in this research was confirmed as an effective way to design clothing materials with optimal UV protection capability and other wear comfort parameters.
PB  - University of Ljubljani, Fac Natural Sci & Engineering, Dept Textiles, Ljubljana
T2  - Tekstilec
T1  - Ultraviolet Protection Factor of Hemp/Filament Hybrid Yarn Knitted Fabrics
EP  - 57
IS  - 1
SP  - 49
VL  - 60
DO  - 10.14502/Tekstilec2017.60.49-57
ER  - 

@article{
author = "Stanković, Snežana and Popović, Dušan M. and Kocić, Ana and Poparić, Goran B.",
year = "2017",
abstract = "It is generally accepted that synthetic fibres provide high UV protection capability of textile products, while cellulose fibres have low UV absorption capacity. However, textile materials made of synthetic fibres are not considered to be comfortable for wear in warm weather, whereas cellulose-based textile materials are considered to be much more comfortable to wear, especially in the summer months. For this research, the idea was to produce specially blended knitted fabrics from staple/filament hybrid yarns in order to provide clothing materials with effective UV protection properties, keeping satisfactory comfort properties as well. To obtain hybrid yarns, folding technique was used. The Ultraviolet Protection Factor (UPF), as a quantitative measure of the effectiveness of the material to protect human skin against UV radiation, was determined for the rib knitted fabrics by in vitro test method according to the European standard. The physical properties of the knitted fabrics related to their UV protection properties: bulk density, porosity and air permeability were also determined. The hybrid yarns, from which the rib knitted fabrics were produced, having always hemp yarn as a staple component, caused the differences in UV protection capability of the rib knitted fabrics through the influence of a filament spun component. The hybrid yarn aggregation within knitted fabrics also influenced their UPF values. Even though the pure hemp knitted fabric was marked as "UPF gt 50" (according to European standard) due to natural pigments and lignin in hemp fibres which act as UV absorbers, most of the hemp/filament hybrid yarn knitted fabrics exhibited even higher UPF. Therefore, the engineering approach proposed in this research was confirmed as an effective way to design clothing materials with optimal UV protection capability and other wear comfort parameters.",
publisher = "University of Ljubljani, Fac Natural Sci & Engineering, Dept Textiles, Ljubljana",
journal = "Tekstilec",
title = "Ultraviolet Protection Factor of Hemp/Filament Hybrid Yarn Knitted Fabrics",
pages = "57-49",
number = "1",
volume = "60",
doi = "10.14502/Tekstilec2017.60.49-57"
}

Stanković, S., Popović, D. M., Kocić, A.,& Poparić, G. B.. (2017). Ultraviolet Protection Factor of Hemp/Filament Hybrid Yarn Knitted Fabrics. in Tekstilec
University of Ljubljani, Fac Natural Sci & Engineering, Dept Textiles, Ljubljana., 60(1), 49-57.
https://doi.org/10.14502/Tekstilec2017.60.49-57

Stanković S, Popović DM, Kocić A, Poparić GB. Ultraviolet Protection Factor of Hemp/Filament Hybrid Yarn Knitted Fabrics. in Tekstilec. 2017;60(1):49-57.
doi:10.14502/Tekstilec2017.60.49-57 .

Stanković, Snežana, Popović, Dušan M., Kocić, Ana, Poparić, Goran B., "Ultraviolet Protection Factor of Hemp/Filament Hybrid Yarn Knitted Fabrics" in Tekstilec, 60, no. 1 (2017):49-57,
https://doi.org/10.14502/Tekstilec2017.60.49-57 . .

TY  - JOUR
AU  - Kocić, Ana
AU  - Popović, Dušan M.
AU  - Stanković, Snežana
AU  - Poparić, Goran B.
PY  - 2016
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/3227
AB  - In the last years the media have highlighted the damage of the ozone layer and the resulting increase of ultraviolet radiation (UVR) reaching the Earth's surface. Prolonged and repeated, both occupational and recreational, sun exposure of the population causes some detrimental effects. Clothing is considered to be one of the most important tools for UV protection. It is generally accepted that synthetic fibres provide a high UV protection capability of textiles, while cellulose fibres (cotton, linen, hemp, viscose) have a low UV absorption capacity. However, natural pigments, pectin and waxes in natural cellulose fibers, and lignin in hemp fibers, act as UV absorbers having a favorable effect on UPF of grey-state fabrics. Bearing in mind the trend of reintroduction of hemp fibers as a source of eco-friendly textiles, there is a serious lack of study about the potential of hemp materials in terms of UV protection. Folded yarn is a complex yarn composed of two or more component yarns arranged parallel and twisted together to make a "new quality" yarn. Folding of yarns is an operation undertaken in order to modify single-yarn properties to an appreciable degree. There are very few investigations concerning the relationship between the yarn properties and UV protection effectiveness of the fabric made therefrom. In addition, there is no any result in the scientific literature about the influence of yarn folding on UV protection properties of textile materials. Having this in mind, for our research the idea was to evaluate the effect of yarn folding in this regard. The plain knitted fabrics composed of single or two-folded hemp yarn were compared in terms of UV protection properties. The Ultraviolet Protection Factor (UPF), as the quantitative measurement of the material effectiveness to protect the human skin against UVR, was determined for the textile materials by in vitro test method according to the European standard EN 13758. The knitted fabrics construction and physical properties were also determined. Bearing in mind that plain knitted fabrics are particularly susceptible to relaxation, they were subjected to relaxation and shrinkage by wetting process, and testing procedure was repeated on the water-treated samples. The results obtained indicated that the folding operation influences UV protection properties of knitted fabrics through an influence on a loop configuration, i.e. the fabric openness. Relaxation and shrinkage of the knitted fabrics due to wet relaxation caused the reduction of macro-porosity increasing the UPF of the knitted fabrics. Although the knitted fabric produced from single hemp yarn was characterised by higher UPF, the UVR transmittance of the folded hemp yarn knitted fabric after wet relaxation placed it in the "excellent UV protection category" (according to European Standard EN 13758-2). This fact together with the better thermal comfort manifested itself in higher air permeability, confirmed the potential of folding operation in terms of UV protection properties of textile materials.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Influence of yarn folding on uv protection properties of hemp knitted fabrics
EP  - 327
IS  - 3
SP  - 319
VL  - 70
DO  - 10.2298/HEMIND141126036K
ER  - 

@article{
author = "Kocić, Ana and Popović, Dušan M. and Stanković, Snežana and Poparić, Goran B.",
year = "2016",
abstract = "In the last years the media have highlighted the damage of the ozone layer and the resulting increase of ultraviolet radiation (UVR) reaching the Earth's surface. Prolonged and repeated, both occupational and recreational, sun exposure of the population causes some detrimental effects. Clothing is considered to be one of the most important tools for UV protection. It is generally accepted that synthetic fibres provide a high UV protection capability of textiles, while cellulose fibres (cotton, linen, hemp, viscose) have a low UV absorption capacity. However, natural pigments, pectin and waxes in natural cellulose fibers, and lignin in hemp fibers, act as UV absorbers having a favorable effect on UPF of grey-state fabrics. Bearing in mind the trend of reintroduction of hemp fibers as a source of eco-friendly textiles, there is a serious lack of study about the potential of hemp materials in terms of UV protection. Folded yarn is a complex yarn composed of two or more component yarns arranged parallel and twisted together to make a "new quality" yarn. Folding of yarns is an operation undertaken in order to modify single-yarn properties to an appreciable degree. There are very few investigations concerning the relationship between the yarn properties and UV protection effectiveness of the fabric made therefrom. In addition, there is no any result in the scientific literature about the influence of yarn folding on UV protection properties of textile materials. Having this in mind, for our research the idea was to evaluate the effect of yarn folding in this regard. The plain knitted fabrics composed of single or two-folded hemp yarn were compared in terms of UV protection properties. The Ultraviolet Protection Factor (UPF), as the quantitative measurement of the material effectiveness to protect the human skin against UVR, was determined for the textile materials by in vitro test method according to the European standard EN 13758. The knitted fabrics construction and physical properties were also determined. Bearing in mind that plain knitted fabrics are particularly susceptible to relaxation, they were subjected to relaxation and shrinkage by wetting process, and testing procedure was repeated on the water-treated samples. The results obtained indicated that the folding operation influences UV protection properties of knitted fabrics through an influence on a loop configuration, i.e. the fabric openness. Relaxation and shrinkage of the knitted fabrics due to wet relaxation caused the reduction of macro-porosity increasing the UPF of the knitted fabrics. Although the knitted fabric produced from single hemp yarn was characterised by higher UPF, the UVR transmittance of the folded hemp yarn knitted fabric after wet relaxation placed it in the "excellent UV protection category" (according to European Standard EN 13758-2). This fact together with the better thermal comfort manifested itself in higher air permeability, confirmed the potential of folding operation in terms of UV protection properties of textile materials.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Influence of yarn folding on uv protection properties of hemp knitted fabrics",
pages = "327-319",
number = "3",
volume = "70",
doi = "10.2298/HEMIND141126036K"
}

Kocić, A., Popović, D. M., Stanković, S.,& Poparić, G. B.. (2016). Influence of yarn folding on uv protection properties of hemp knitted fabrics. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 70(3), 319-327.
https://doi.org/10.2298/HEMIND141126036K

Kocić A, Popović DM, Stanković S, Poparić GB. Influence of yarn folding on uv protection properties of hemp knitted fabrics. in Hemijska industrija. 2016;70(3):319-327.
doi:10.2298/HEMIND141126036K .

Kocić, Ana, Popović, Dušan M., Stanković, Snežana, Poparić, Goran B., "Influence of yarn folding on uv protection properties of hemp knitted fabrics" in Hemijska industrija, 70, no. 3 (2016):319-327,
https://doi.org/10.2298/HEMIND141126036K . .

TY  - JOUR
AU  - Pavlović, Sanja S.
AU  - Stanković, Snežana
AU  - Popović, Dušan M.
AU  - Poparić, Goran B.
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2850
AB  - The thermal parameters that describe the transient response of cellulose textile fabrics due to the changes in physiological and environmental conditions were analyzed. Starting from the specific heat of the knitted fabrics determined by a new experimental method based on Newton's cooling rate law, and previously determined thermal conductivity of the knits, their thermal diffusivity and thermal effusivity (absorptivity) have been determined. According to the results obtained, it can be concluded that the structure of the knitted fabrics is responsible for their transient thermal response through thermal conductivity, whereas the composition of the knits influences their dynamic thermal behavior through specific heat. Hemp based textile fabrics are proved to be at a comparable level to other cellulose fabrics from the viewpoint of thermal behavior during the dynamic stage of heat transport.
PB  - Elsevier Sci Ltd, Oxford
T2  - Polymer Testing
T1  - Transient thermal response of textile fabrics made of natural and regenerated cellulose fibers
EP  - 102
SP  - 97
VL  - 34
DO  - 10.1016/j.polymertesting.2013.12.010
ER  - 

@article{
author = "Pavlović, Sanja S. and Stanković, Snežana and Popović, Dušan M. and Poparić, Goran B.",
year = "2014",
abstract = "The thermal parameters that describe the transient response of cellulose textile fabrics due to the changes in physiological and environmental conditions were analyzed. Starting from the specific heat of the knitted fabrics determined by a new experimental method based on Newton's cooling rate law, and previously determined thermal conductivity of the knits, their thermal diffusivity and thermal effusivity (absorptivity) have been determined. According to the results obtained, it can be concluded that the structure of the knitted fabrics is responsible for their transient thermal response through thermal conductivity, whereas the composition of the knits influences their dynamic thermal behavior through specific heat. Hemp based textile fabrics are proved to be at a comparable level to other cellulose fabrics from the viewpoint of thermal behavior during the dynamic stage of heat transport.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Polymer Testing",
title = "Transient thermal response of textile fabrics made of natural and regenerated cellulose fibers",
pages = "102-97",
volume = "34",
doi = "10.1016/j.polymertesting.2013.12.010"
}

Pavlović, S. S., Stanković, S., Popović, D. M.,& Poparić, G. B.. (2014). Transient thermal response of textile fabrics made of natural and regenerated cellulose fibers. in Polymer Testing
Elsevier Sci Ltd, Oxford., 34, 97-102.
https://doi.org/10.1016/j.polymertesting.2013.12.010

Pavlović SS, Stanković S, Popović DM, Poparić GB. Transient thermal response of textile fabrics made of natural and regenerated cellulose fibers. in Polymer Testing. 2014;34:97-102.
doi:10.1016/j.polymertesting.2013.12.010 .

Pavlović, Sanja S., Stanković, Snežana, Popović, Dušan M., Poparić, Goran B., "Transient thermal response of textile fabrics made of natural and regenerated cellulose fibers" in Polymer Testing, 34 (2014):97-102,
https://doi.org/10.1016/j.polymertesting.2013.12.010 . .

TY  - JOUR
AU  - Stanković, Snežana
AU  - Popović, Dušan M.
AU  - Poparić, Goran B.
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2320
AB  - The compressive nature of textile fabrics is known to be a significant factor influencing tactile comfort. In addition, the transport of the heat through the fabric is considered to be the major factor in thermal comfort. Since the thermal behavior of textile fabrics is highly correlated with thickness and porosity, the changes in bulk density of the fabric caused by the compression force would change the heat flux through the fabric. The operation of yarn folding modifies the existing single yarns to an appreciable degree by combining them together. Therefore, in this study the interaction of thermal and compression properties of textile materials was analyzed from the aspect of the operation of yarn folding. Two jersey knitted fabrics were compared, both knitted under the same conditions, the first produced from the single hemp yarn, and the second one produced from the two-folded hemp yarn. The knitted fabrics exhibited comparable thermal properties. The differences in their compressibility indicated that the reduction of thermal conductivity under the compression force is more likely to be higher for the knitted fabric consisted of the folded yarn. Since the resilience of the knit made from two-folded yarn was comparable to that of the single yarn counterpart, similar permanent changes in thermal behavior of these knits could be expected.
AB  - Mekoća ili kompresibilnost tekstilnih materijala predstavlja važan parametar taktilnog komfora. Pored toga, sposobnost tekstilnih materijala da prenose toplotu smatra se ključnim faktorom toplotnog komfora. Budući da postoji značajna korelacija između toplotnog ponašanja tekstilnog materijala i njegove debljine i poroznosti, promena gustine materijala pod dejstvom kompresionog opterećenja sigurno vodi ka promeni toplotnog fluksa kroz materijal. Operacijom končanja se kombinovanjem jednožičnih komponenata u značajnoj meri modifikuju svojstva pređe. Zbog toga je u okviru ovog rada analizirana interakcija toplotnih i kompresionih svojstava pletenina sa aspekta uticaja operacije končanja pređa. Poređene su dve varijante glatkih DL pletenina, jedna izrađena od jednožične pređe a druga od končane pređe od konoplje, proizvedenih u kontrolisanim uslovima. Pletenine su okarakterisane sličnim toplotnim svojstvima. Razlike u kompresibilnosti pletenina su pokazale da bi smanjenje toplotne provodljivosti tokom kompresionog opterećenja bilo izraženije kod pletenine izrađene od končane pređe. S obzirom na približne vrednosti elastičnog oporavka pletenina, mogu se očekivati trajne promene u toplotnom ponašanju sličnog intenziteta za obe varijante pletenina.
PB  - Univerzitet u Nišu - Tehnološki fakultet, Leskovac
T2  - Savremene tehnologije
T1  - The effect of yarn folding on some comfort properties
T1  - Efekat končanja pređa na neka svojstva komfora
EP  - 26
IS  - 2
SP  - 21
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2320
ER  - 

@article{
author = "Stanković, Snežana and Popović, Dušan M. and Poparić, Goran B.",
year = "2013",
abstract = "The compressive nature of textile fabrics is known to be a significant factor influencing tactile comfort. In addition, the transport of the heat through the fabric is considered to be the major factor in thermal comfort. Since the thermal behavior of textile fabrics is highly correlated with thickness and porosity, the changes in bulk density of the fabric caused by the compression force would change the heat flux through the fabric. The operation of yarn folding modifies the existing single yarns to an appreciable degree by combining them together. Therefore, in this study the interaction of thermal and compression properties of textile materials was analyzed from the aspect of the operation of yarn folding. Two jersey knitted fabrics were compared, both knitted under the same conditions, the first produced from the single hemp yarn, and the second one produced from the two-folded hemp yarn. The knitted fabrics exhibited comparable thermal properties. The differences in their compressibility indicated that the reduction of thermal conductivity under the compression force is more likely to be higher for the knitted fabric consisted of the folded yarn. Since the resilience of the knit made from two-folded yarn was comparable to that of the single yarn counterpart, similar permanent changes in thermal behavior of these knits could be expected., Mekoća ili kompresibilnost tekstilnih materijala predstavlja važan parametar taktilnog komfora. Pored toga, sposobnost tekstilnih materijala da prenose toplotu smatra se ključnim faktorom toplotnog komfora. Budući da postoji značajna korelacija između toplotnog ponašanja tekstilnog materijala i njegove debljine i poroznosti, promena gustine materijala pod dejstvom kompresionog opterećenja sigurno vodi ka promeni toplotnog fluksa kroz materijal. Operacijom končanja se kombinovanjem jednožičnih komponenata u značajnoj meri modifikuju svojstva pređe. Zbog toga je u okviru ovog rada analizirana interakcija toplotnih i kompresionih svojstava pletenina sa aspekta uticaja operacije končanja pređa. Poređene su dve varijante glatkih DL pletenina, jedna izrađena od jednožične pređe a druga od končane pređe od konoplje, proizvedenih u kontrolisanim uslovima. Pletenine su okarakterisane sličnim toplotnim svojstvima. Razlike u kompresibilnosti pletenina su pokazale da bi smanjenje toplotne provodljivosti tokom kompresionog opterećenja bilo izraženije kod pletenine izrađene od končane pređe. S obzirom na približne vrednosti elastičnog oporavka pletenina, mogu se očekivati trajne promene u toplotnom ponašanju sličnog intenziteta za obe varijante pletenina.",
publisher = "Univerzitet u Nišu - Tehnološki fakultet, Leskovac",
journal = "Savremene tehnologije",
title = "The effect of yarn folding on some comfort properties, Efekat končanja pređa na neka svojstva komfora",
pages = "26-21",
number = "2",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2320"
}

Stanković, S., Popović, D. M.,& Poparić, G. B.. (2013). The effect of yarn folding on some comfort properties. in Savremene tehnologije
Univerzitet u Nišu - Tehnološki fakultet, Leskovac., 2(2), 21-26.
https://hdl.handle.net/21.15107/rcub_technorep_2320

Stanković S, Popović DM, Poparić GB. The effect of yarn folding on some comfort properties. in Savremene tehnologije. 2013;2(2):21-26.
https://hdl.handle.net/21.15107/rcub_technorep_2320 .

Stanković, Snežana, Popović, Dušan M., Poparić, Goran B., "The effect of yarn folding on some comfort properties" in Savremene tehnologije, 2, no. 2 (2013):21-26,
https://hdl.handle.net/21.15107/rcub_technorep_2320 .

TY  - JOUR
AU  - Stanković, Snežana
AU  - Popović, Dušan M.
AU  - Poparić, Goran B.
AU  - Bizjak, Matejka
PY  - 2009
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1435
AB  - The protection provided by clothing against ultraviolet (UV) radiation has been the subject of considerable recent research. However, a lack of investigations concerned with the influence of yarn properties on UV protection capabilities of fabrics seems to be present. This study investigated the influence of yarn twist and surface geometry on these properties of fabrics. The gray-state plain cotton knitted fabrics were produced from yarn differing in twist level under controlled conditions, so as to obtain as similar as possible construction of the fabrics. These plain knitted (single jersey) fabrics were spectrophotometrically assessed and UV protection factor was calculated. The results obtained indicated that yarn twist to a great extent influenced the UV protection properties of the knitted fabrics through the influence on yam compactness and surface properties, which in turn influenced the open porosity of the fabric. The results were also interpreted as the consequences of minimal differences between knitted fabrics' construction (different stitch density), which could not be avoided because of the yam twist differences.
PB  - Sage Publications Ltd, London
T2  - Textile Research Journal
T1  - Ultraviolet Protection Factor of Gray-state Plain Cotton Knitted Fabrics
EP  - 1042
IS  - 11
SP  - 1034
VL  - 79
DO  - 10.1177/0040517508102016
ER  - 

@article{
author = "Stanković, Snežana and Popović, Dušan M. and Poparić, Goran B. and Bizjak, Matejka",
year = "2009",
abstract = "The protection provided by clothing against ultraviolet (UV) radiation has been the subject of considerable recent research. However, a lack of investigations concerned with the influence of yarn properties on UV protection capabilities of fabrics seems to be present. This study investigated the influence of yarn twist and surface geometry on these properties of fabrics. The gray-state plain cotton knitted fabrics were produced from yarn differing in twist level under controlled conditions, so as to obtain as similar as possible construction of the fabrics. These plain knitted (single jersey) fabrics were spectrophotometrically assessed and UV protection factor was calculated. The results obtained indicated that yarn twist to a great extent influenced the UV protection properties of the knitted fabrics through the influence on yam compactness and surface properties, which in turn influenced the open porosity of the fabric. The results were also interpreted as the consequences of minimal differences between knitted fabrics' construction (different stitch density), which could not be avoided because of the yam twist differences.",
publisher = "Sage Publications Ltd, London",
journal = "Textile Research Journal",
title = "Ultraviolet Protection Factor of Gray-state Plain Cotton Knitted Fabrics",
pages = "1042-1034",
number = "11",
volume = "79",
doi = "10.1177/0040517508102016"
}

Stanković, S., Popović, D. M., Poparić, G. B.,& Bizjak, M.. (2009). Ultraviolet Protection Factor of Gray-state Plain Cotton Knitted Fabrics. in Textile Research Journal
Sage Publications Ltd, London., 79(11), 1034-1042.
https://doi.org/10.1177/0040517508102016

Stanković S, Popović DM, Poparić GB, Bizjak M. Ultraviolet Protection Factor of Gray-state Plain Cotton Knitted Fabrics. in Textile Research Journal. 2009;79(11):1034-1042.
doi:10.1177/0040517508102016 .

Stanković, Snežana, Popović, Dušan M., Poparić, Goran B., Bizjak, Matejka, "Ultraviolet Protection Factor of Gray-state Plain Cotton Knitted Fabrics" in Textile Research Journal, 79, no. 11 (2009):1034-1042,
https://doi.org/10.1177/0040517508102016 . .

TY  - JOUR
AU  - Stanković, Snežana
AU  - Popović, Dušan M.
AU  - Poparić, Goran B.
PY  - 2008
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1266
AB  - Cotton (cellulose) and viscose (regenerated cellulose) fibers are commonly applied in clothing textile fabrics. Thanks to the unique hemp (lignocellulose) fibre properties and its ecological benefits (biodegradability), nowadays hemp is reintroduced as a source of fibers for clothing textile applications. In order to understand the heat transfer phenomena through the cellulose textile fabrics, the thermal properties and the properties closely related to the thermal behavior of fabrics (porosity and air permeability) were investigated. A new test method was applied successfully for determination of the thermal properties of the fabrics. The results obtained indicate that heat transfer through the fabrics is highly related to both capillary structure and surface characteristics of yarns (a continuous package of short fibers), as well as air volume distribution within the fabrics.
PB  - Elsevier Sci Ltd, Oxford
T2  - Polymer Testing
T1  - Thermal properties of textile fabrics made of natural and regenerated cellulose fibers
EP  - 48
IS  - 1
SP  - 41
VL  - 27
DO  - 10.1016/j.polymertesting.2007.08.003
ER  - 

@article{
author = "Stanković, Snežana and Popović, Dušan M. and Poparić, Goran B.",
year = "2008",
abstract = "Cotton (cellulose) and viscose (regenerated cellulose) fibers are commonly applied in clothing textile fabrics. Thanks to the unique hemp (lignocellulose) fibre properties and its ecological benefits (biodegradability), nowadays hemp is reintroduced as a source of fibers for clothing textile applications. In order to understand the heat transfer phenomena through the cellulose textile fabrics, the thermal properties and the properties closely related to the thermal behavior of fabrics (porosity and air permeability) were investigated. A new test method was applied successfully for determination of the thermal properties of the fabrics. The results obtained indicate that heat transfer through the fabrics is highly related to both capillary structure and surface characteristics of yarns (a continuous package of short fibers), as well as air volume distribution within the fabrics.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Polymer Testing",
title = "Thermal properties of textile fabrics made of natural and regenerated cellulose fibers",
pages = "48-41",
number = "1",
volume = "27",
doi = "10.1016/j.polymertesting.2007.08.003"
}

Stanković, S., Popović, D. M.,& Poparić, G. B.. (2008). Thermal properties of textile fabrics made of natural and regenerated cellulose fibers. in Polymer Testing
Elsevier Sci Ltd, Oxford., 27(1), 41-48.
https://doi.org/10.1016/j.polymertesting.2007.08.003

Stanković S, Popović DM, Poparić GB. Thermal properties of textile fabrics made of natural and regenerated cellulose fibers. in Polymer Testing. 2008;27(1):41-48.
doi:10.1016/j.polymertesting.2007.08.003 .

Stanković, Snežana, Popović, Dušan M., Poparić, Goran B., "Thermal properties of textile fabrics made of natural and regenerated cellulose fibers" in Polymer Testing, 27, no. 1 (2008):41-48,
https://doi.org/10.1016/j.polymertesting.2007.08.003 . .