TY  - JOUR
AU  - Ivanovska, Aleksandra
AU  - Lađarević, Jelena
AU  - Asanović, Koviljka
AU  - Pavun, Leposava
AU  - Kostić, Mirjana
AU  - Mangovska, Biljana
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5957
AB  - The present paper demonstrates a simple way for revalorization of differently softened cotton and cotton/elastane knitted fabric waste collected from the textile industry. Such waste was used as an adsorbent for Congo Red (CR) dye, whereby up to 96% removal efficiency was reached. The CR adsorption process onto cationic and silicone softened fabrics is in conformity with Langmuir (with maximum adsorption capacity of 12.533 mg/g) and Freundlich isotherms, respectively. Different adsorption of CR onto cationic and silicone softened fabrics is ascribed to the different softeners’ fixation to them, while the adsorption of CR operates in the same manner, via hydrophobic interactions. The adsorption kinetic data follow the pseudo-second-order model, while the equilibrium was reached after 90 min. Additionally, this study proposed a new circular economy solution for the disposal of fabric waste with adsorbed CR generating additional revenues. The volume electrical resistivity measurements confirmed that the knitted fabric wastes with adsorbed CR have 169–737 times lower resistivities (0.008–0.037 GΩ·cm) than before the adsorption. The inversely proportional correlation between fabrics’ adsorption efficiencies and their volume electrical resistivities after CR adsorption was found. Such knitted fabric waste with adsorbed CR could be defined as dissipative materials and could be used for providing antistatic protection.
PB  - Korean Fiber Society
T2  - Fibers and Polymers
T1  - Revalorization of Cotton and Cotton/Elastane Knitted Fabric Waste
DO  - 10.1007/s12221-023-00045-7
ER  - 

@article{
author = "Ivanovska, Aleksandra and Lađarević, Jelena and Asanović, Koviljka and Pavun, Leposava and Kostić, Mirjana and Mangovska, Biljana",
year = "2023",
abstract = "The present paper demonstrates a simple way for revalorization of differently softened cotton and cotton/elastane knitted fabric waste collected from the textile industry. Such waste was used as an adsorbent for Congo Red (CR) dye, whereby up to 96% removal efficiency was reached. The CR adsorption process onto cationic and silicone softened fabrics is in conformity with Langmuir (with maximum adsorption capacity of 12.533 mg/g) and Freundlich isotherms, respectively. Different adsorption of CR onto cationic and silicone softened fabrics is ascribed to the different softeners’ fixation to them, while the adsorption of CR operates in the same manner, via hydrophobic interactions. The adsorption kinetic data follow the pseudo-second-order model, while the equilibrium was reached after 90 min. Additionally, this study proposed a new circular economy solution for the disposal of fabric waste with adsorbed CR generating additional revenues. The volume electrical resistivity measurements confirmed that the knitted fabric wastes with adsorbed CR have 169–737 times lower resistivities (0.008–0.037 GΩ·cm) than before the adsorption. The inversely proportional correlation between fabrics’ adsorption efficiencies and their volume electrical resistivities after CR adsorption was found. Such knitted fabric waste with adsorbed CR could be defined as dissipative materials and could be used for providing antistatic protection.",
publisher = "Korean Fiber Society",
journal = "Fibers and Polymers",
title = "Revalorization of Cotton and Cotton/Elastane Knitted Fabric Waste",
doi = "10.1007/s12221-023-00045-7"
}

Ivanovska, A., Lađarević, J., Asanović, K., Pavun, L., Kostić, M.,& Mangovska, B.. (2023). Revalorization of Cotton and Cotton/Elastane Knitted Fabric Waste. in Fibers and Polymers
Korean Fiber Society..
https://doi.org/10.1007/s12221-023-00045-7

Ivanovska A, Lađarević J, Asanović K, Pavun L, Kostić M, Mangovska B. Revalorization of Cotton and Cotton/Elastane Knitted Fabric Waste. in Fibers and Polymers. 2023;.
doi:10.1007/s12221-023-00045-7 .

Ivanovska, Aleksandra, Lađarević, Jelena, Asanović, Koviljka, Pavun, Leposava, Kostić, Mirjana, Mangovska, Biljana, "Revalorization of Cotton and Cotton/Elastane Knitted Fabric Waste" in Fibers and Polymers (2023),
https://doi.org/10.1007/s12221-023-00045-7 . .

TY  - JOUR
AU  - Ivanovska, Aleksandra
AU  - Reljić, Mirjana
AU  - Kostić, Mirjana
AU  - Asanović, Koviljka
AU  - Mangovska, Biljana
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5002
AB  - This study investigates the knitted fabrics' air permeability and water vapor resistance as complex phenomena of the interaction between the fiber nature, fabric structural characteristics and, different wet processes. Bleaching and dyeing together with the content of elastane are the main factors determining fabric structural characteristics. 100% cotton fabrics have a higher intensity of warm/cool feeling since they have higher air permeability than elastane containing fabrics. The air permeability and water vapor resistance of elastane containing fabrics decreased after the wet processes, whereby the bleached knitted fabrics showed higher air permeability and lower water vapor resistance than dyed. Decreased air permeability and increased water vapor resistance of softened elastane containing fabrics are governed by the cationic softener pick-up mechanism. Namely, the cationic softener is deposited on the yarns' surfaces; its hydrophobic carbon ends repel from each other. This acts as a barrier for air which contributes to an increase in the fabric water vapor resistance. The softened dyed knitted fabrics have lower air permeability and slightly higher water vapor resistance than softened bleached fabrics which may be attributed to the interaction between reactive dyestuff and cationic softener. The comfort properties quality of finished knitted fabrics decreased with elastane incorporation and with softening.
PB  - Taylor and Francis Ltd.
T2  - Journal of Natural Fibers
T1  - Air Permeability and Water Vapor Resistance of Differently Finished Cotton and Cotton/Elastane Single Jersey Knitted Fabrics
EP  - 5477
IS  - 13
SP  - 5465
VL  - 19
DO  - 10.1080/15440478.2021.1875383
ER  - 

@article{
author = "Ivanovska, Aleksandra and Reljić, Mirjana and Kostić, Mirjana and Asanović, Koviljka and Mangovska, Biljana",
year = "2022",
abstract = "This study investigates the knitted fabrics' air permeability and water vapor resistance as complex phenomena of the interaction between the fiber nature, fabric structural characteristics and, different wet processes. Bleaching and dyeing together with the content of elastane are the main factors determining fabric structural characteristics. 100% cotton fabrics have a higher intensity of warm/cool feeling since they have higher air permeability than elastane containing fabrics. The air permeability and water vapor resistance of elastane containing fabrics decreased after the wet processes, whereby the bleached knitted fabrics showed higher air permeability and lower water vapor resistance than dyed. Decreased air permeability and increased water vapor resistance of softened elastane containing fabrics are governed by the cationic softener pick-up mechanism. Namely, the cationic softener is deposited on the yarns' surfaces; its hydrophobic carbon ends repel from each other. This acts as a barrier for air which contributes to an increase in the fabric water vapor resistance. The softened dyed knitted fabrics have lower air permeability and slightly higher water vapor resistance than softened bleached fabrics which may be attributed to the interaction between reactive dyestuff and cationic softener. The comfort properties quality of finished knitted fabrics decreased with elastane incorporation and with softening.",
publisher = "Taylor and Francis Ltd.",
journal = "Journal of Natural Fibers",
title = "Air Permeability and Water Vapor Resistance of Differently Finished Cotton and Cotton/Elastane Single Jersey Knitted Fabrics",
pages = "5477-5465",
number = "13",
volume = "19",
doi = "10.1080/15440478.2021.1875383"
}

Ivanovska, A., Reljić, M., Kostić, M., Asanović, K.,& Mangovska, B.. (2022). Air Permeability and Water Vapor Resistance of Differently Finished Cotton and Cotton/Elastane Single Jersey Knitted Fabrics. in Journal of Natural Fibers
Taylor and Francis Ltd.., 19(13), 5465-5477.
https://doi.org/10.1080/15440478.2021.1875383

Ivanovska A, Reljić M, Kostić M, Asanović K, Mangovska B. Air Permeability and Water Vapor Resistance of Differently Finished Cotton and Cotton/Elastane Single Jersey Knitted Fabrics. in Journal of Natural Fibers. 2022;19(13):5465-5477.
doi:10.1080/15440478.2021.1875383 .

Ivanovska, Aleksandra, Reljić, Mirjana, Kostić, Mirjana, Asanović, Koviljka, Mangovska, Biljana, "Air Permeability and Water Vapor Resistance of Differently Finished Cotton and Cotton/Elastane Single Jersey Knitted Fabrics" in Journal of Natural Fibers, 19, no. 13 (2022):5465-5477,
https://doi.org/10.1080/15440478.2021.1875383 . .

TY  - JOUR
AU  - Ivanovska, Aleksandra
AU  - Dojčinović, Biljana
AU  - Mangovska, Biljana
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5292
AB  - This research studied the influence of common wet processes (i.e. bleaching, dyeing, or softening) on the quality of 1 × 1 rib cotton/elastane knitted fabrics. The changes in their structural (thickness, weight, and stitch density) parameters, mechanical (bursting elongation and stiffness), comfort (air permeability and moisture sorption), and esthetic (pilling propensity) properties are discussed as an influence of the used elastane type (multifilament or monofilament), and content (4% or 8%), and applied wet processes. The severity of the bleaching process (high pH value and boiling temperature) and the resulting fabrics’ less compact structure contributed to a 17.3% higher bursting elongation of bleached compared to the dyed fabrics. Fabrics having a higher content of less finner elastane (8%, 235 dtex) have 40% and up to 21% higher stiffness and bursting elongation than fabrics containing 4% elastane of 78 dtex. The aforementioned fabrics (having 4% elastane) are softer and more comfortable since they are characterized by up to 37.9% and 5.6% higher air permeability and moisture sorption than fabrics having 8% elastane. Dyed knitted fabrics provided a better intensity of warm/cool feeling than the bleached ones due to the better comfort properties. Up to 5000 pilling cycles, the fabrics’ pilling propensity increased with an increase in elastane fineness, while at the same number of pilling cycles, dyed fabrics have a lower pilling propensity than the bleached ones. The calculated complex criterion of fabrics’ quality revealed that pilling propensity and stiffness are the main contributors to their quality that ranged from excellent to satisfying. The “satisfying” fabric quality was improved to “good” by softening with silicone softener, whereby the high content of silicon (197.51 μg/g, assessed by ICP-OES) within the bleached fabric having 8% elastane contributed to lower piling propensity compared to the corresponding non-softened fabric.
PB  - SAGE Publications Ltd
T2  - Journal of Engineered Fibers and Fabrics
T1  - Studying the influence of common wet processes on the quality of 1 × 1 rib cotton/elastane knitted fabrics
VL  - 17
DO  - 10.1177/15589250221145522
ER  - 

@article{
author = "Ivanovska, Aleksandra and Dojčinović, Biljana and Mangovska, Biljana",
year = "2022",
abstract = "This research studied the influence of common wet processes (i.e. bleaching, dyeing, or softening) on the quality of 1 × 1 rib cotton/elastane knitted fabrics. The changes in their structural (thickness, weight, and stitch density) parameters, mechanical (bursting elongation and stiffness), comfort (air permeability and moisture sorption), and esthetic (pilling propensity) properties are discussed as an influence of the used elastane type (multifilament or monofilament), and content (4% or 8%), and applied wet processes. The severity of the bleaching process (high pH value and boiling temperature) and the resulting fabrics’ less compact structure contributed to a 17.3% higher bursting elongation of bleached compared to the dyed fabrics. Fabrics having a higher content of less finner elastane (8%, 235 dtex) have 40% and up to 21% higher stiffness and bursting elongation than fabrics containing 4% elastane of 78 dtex. The aforementioned fabrics (having 4% elastane) are softer and more comfortable since they are characterized by up to 37.9% and 5.6% higher air permeability and moisture sorption than fabrics having 8% elastane. Dyed knitted fabrics provided a better intensity of warm/cool feeling than the bleached ones due to the better comfort properties. Up to 5000 pilling cycles, the fabrics’ pilling propensity increased with an increase in elastane fineness, while at the same number of pilling cycles, dyed fabrics have a lower pilling propensity than the bleached ones. The calculated complex criterion of fabrics’ quality revealed that pilling propensity and stiffness are the main contributors to their quality that ranged from excellent to satisfying. The “satisfying” fabric quality was improved to “good” by softening with silicone softener, whereby the high content of silicon (197.51 μg/g, assessed by ICP-OES) within the bleached fabric having 8% elastane contributed to lower piling propensity compared to the corresponding non-softened fabric.",
publisher = "SAGE Publications Ltd",
journal = "Journal of Engineered Fibers and Fabrics",
title = "Studying the influence of common wet processes on the quality of 1 × 1 rib cotton/elastane knitted fabrics",
volume = "17",
doi = "10.1177/15589250221145522"
}

Ivanovska, A., Dojčinović, B.,& Mangovska, B.. (2022). Studying the influence of common wet processes on the quality of 1 × 1 rib cotton/elastane knitted fabrics. in Journal of Engineered Fibers and Fabrics
SAGE Publications Ltd., 17.
https://doi.org/10.1177/15589250221145522

Ivanovska A, Dojčinović B, Mangovska B. Studying the influence of common wet processes on the quality of 1 × 1 rib cotton/elastane knitted fabrics. in Journal of Engineered Fibers and Fabrics. 2022;17.
doi:10.1177/15589250221145522 .

Ivanovska, Aleksandra, Dojčinović, Biljana, Mangovska, Biljana, "Studying the influence of common wet processes on the quality of 1 × 1 rib cotton/elastane knitted fabrics" in Journal of Engineered Fibers and Fabrics, 17 (2022),
https://doi.org/10.1177/15589250221145522 . .

TY  - CONF
AU  - Ivanovska, Aleksandra
AU  - Mangovska, Biljana
AU  - Dembovski, Goran
PY  - 2017
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7166
AB  - The influence of different amount of elastane and different processing stages on the structural properties and air permeability of knitted fabrics have been studied. Samples made of 100% cotton yarn; elastane yarn in alternating courses (half plating) and elastane yarn in every course (full plating) were scoured, bleached or dyed with reactive dyes, finished or not finished with cationic or silicone softener in industrial conditions. Elastane in blends increased the fabric weight and thickness and decreased the air permeability. Considerable differences in structural properties and air permeability after different finishing stages were found. Bleached knitted fabrics which were not softened have smaller thickness compared to softened. Softened knitted fabrics have higher weight compared to not softened. Air permeability of 100% cotton bleached and dyed knitted fabrics increases in the following way: not softened < softened with cationic softener < softened with silicone softener. Air permeability of cotton/elastane bleached and dyed knitted fabrics increases in the opposite direction of 100% cotton knits.
PB  - Belgrade : Institute of Technical Sciences of SASA
C3  - Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia
T1  - Air permeability of differently softened cotton and cotton/elastane knitted fabrics
SP  - 63
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7166
ER  - 

@conference{
author = "Ivanovska, Aleksandra and Mangovska, Biljana and Dembovski, Goran",
year = "2017",
abstract = "The influence of different amount of elastane and different processing stages on the structural properties and air permeability of knitted fabrics have been studied. Samples made of 100% cotton yarn; elastane yarn in alternating courses (half plating) and elastane yarn in every course (full plating) were scoured, bleached or dyed with reactive dyes, finished or not finished with cationic or silicone softener in industrial conditions. Elastane in blends increased the fabric weight and thickness and decreased the air permeability. Considerable differences in structural properties and air permeability after different finishing stages were found. Bleached knitted fabrics which were not softened have smaller thickness compared to softened. Softened knitted fabrics have higher weight compared to not softened. Air permeability of 100% cotton bleached and dyed knitted fabrics increases in the following way: not softened < softened with cationic softener < softened with silicone softener. Air permeability of cotton/elastane bleached and dyed knitted fabrics increases in the opposite direction of 100% cotton knits.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia",
title = "Air permeability of differently softened cotton and cotton/elastane knitted fabrics",
pages = "63",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7166"
}

Ivanovska, A., Mangovska, B.,& Dembovski, G.. (2017). Air permeability of differently softened cotton and cotton/elastane knitted fabrics. in Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 63.
https://hdl.handle.net/21.15107/rcub_technorep_7166

Ivanovska A, Mangovska B, Dembovski G. Air permeability of differently softened cotton and cotton/elastane knitted fabrics. in Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia. 2017;:63.
https://hdl.handle.net/21.15107/rcub_technorep_7166 .

Ivanovska, Aleksandra, Mangovska, Biljana, Dembovski, Goran, "Air permeability of differently softened cotton and cotton/elastane knitted fabrics" in Program and the Book of Abstracts / Sixteenth Young Researchers' Conference Materials Sciences and Engineering, December 6-8, 2017, Belgrade, Serbia (2017):63,
https://hdl.handle.net/21.15107/rcub_technorep_7166 .

TY  - CONF
AU  - Ivanovska, Aleksandra
AU  - Mangovska, Biljana
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/7168
AB  - Household fabric softeners were introduced to the consumers in early 1950s in order to maintain the handle and freshness even after several washings. The three methods of applying fabric softeners to textile, which are the most commercially successful, are rinse cycle softeners, wash cycle softeners and dry fabric softeners. The rinse cycle cationic softeners are mainly used in our country. Several small enterprises stared their own production of cationic softeners. In this work the two cationic softeners Softly (Andros Farm), Elfy (Elfy) from domestic production and Lenor (Procter & Gamble) imported were used.
The softeners were applied on the 100% white cotton waved fabrics after first, third and fifth washing cycle. The effectiveness of the softeners were studied through the changes of the dimensional stability, flexural rigidity, fabric bending, drapeability, thickness, fabric mass per unit area, porosity, water retention value. crease recovery angle, absorbency and feel (touch) of the fabrics and compared between themselves.
The results in this study showed that softener Softly from domestic production gives the best effects on 100% cotton fabric, while Lenor, imported softener gives the worst. In conclusion it can be said, fabric softeners had a significant influence on the flexural rigidity, bending modulus, soft hand and drape of 100% cotton fabrics after repeated laundering cycles and the effects were significantly different among the three tested softeners and repeating washing cycles. Manufacturers may also use the results from this study to provide better care instruction for their textile products.
PB  - Skopje : Society of chemists and technologists of Macedonia
C3  - Book of Abstracts / IX Congress of Pure and Applied Chemistry of Students from R. Macedonia (with international participation), Skopje, 6-8 October, 2011
T1  - Comparison of the properties of the household fabric softeners from domestic production with the imported ones
SP  - 19
UR  - https://hdl.handle.net/21.15107/rcub_technorep_7168
ER  - 

@conference{
author = "Ivanovska, Aleksandra and Mangovska, Biljana",
year = "2011",
abstract = "Household fabric softeners were introduced to the consumers in early 1950s in order to maintain the handle and freshness even after several washings. The three methods of applying fabric softeners to textile, which are the most commercially successful, are rinse cycle softeners, wash cycle softeners and dry fabric softeners. The rinse cycle cationic softeners are mainly used in our country. Several small enterprises stared their own production of cationic softeners. In this work the two cationic softeners Softly (Andros Farm), Elfy (Elfy) from domestic production and Lenor (Procter & Gamble) imported were used.
The softeners were applied on the 100% white cotton waved fabrics after first, third and fifth washing cycle. The effectiveness of the softeners were studied through the changes of the dimensional stability, flexural rigidity, fabric bending, drapeability, thickness, fabric mass per unit area, porosity, water retention value. crease recovery angle, absorbency and feel (touch) of the fabrics and compared between themselves.
The results in this study showed that softener Softly from domestic production gives the best effects on 100% cotton fabric, while Lenor, imported softener gives the worst. In conclusion it can be said, fabric softeners had a significant influence on the flexural rigidity, bending modulus, soft hand and drape of 100% cotton fabrics after repeated laundering cycles and the effects were significantly different among the three tested softeners and repeating washing cycles. Manufacturers may also use the results from this study to provide better care instruction for their textile products.",
publisher = "Skopje : Society of chemists and technologists of Macedonia",
journal = "Book of Abstracts / IX Congress of Pure and Applied Chemistry of Students from R. Macedonia (with international participation), Skopje, 6-8 October, 2011",
title = "Comparison of the properties of the household fabric softeners from domestic production with the imported ones",
pages = "19",
url = "https://hdl.handle.net/21.15107/rcub_technorep_7168"
}

Ivanovska, A.,& Mangovska, B.. (2011). Comparison of the properties of the household fabric softeners from domestic production with the imported ones. in Book of Abstracts / IX Congress of Pure and Applied Chemistry of Students from R. Macedonia (with international participation), Skopje, 6-8 October, 2011
Skopje : Society of chemists and technologists of Macedonia., 19.
https://hdl.handle.net/21.15107/rcub_technorep_7168

Ivanovska A, Mangovska B. Comparison of the properties of the household fabric softeners from domestic production with the imported ones. in Book of Abstracts / IX Congress of Pure and Applied Chemistry of Students from R. Macedonia (with international participation), Skopje, 6-8 October, 2011. 2011;:19.
https://hdl.handle.net/21.15107/rcub_technorep_7168 .

Ivanovska, Aleksandra, Mangovska, Biljana, "Comparison of the properties of the household fabric softeners from domestic production with the imported ones" in Book of Abstracts / IX Congress of Pure and Applied Chemistry of Students from R. Macedonia (with international participation), Skopje, 6-8 October, 2011 (2011):19,
https://hdl.handle.net/21.15107/rcub_technorep_7168 .