The analysis of dimensional stability of 1x1 RIB Co and Co/LY knitwear

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.

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Studying the influence of common wet processes on the quality of 1 × 1 rib cotton/elastane knitted fabrics

Ivanovska

Dojčinović

Mangovska

2022

Journal of Engineered Fibers and Fabrics

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The impact of type relaxations on the structural characteristics and dimensional stability of half Milano rib cotton knitted fabrics

Bukhonka,

Pešić,

Nemeša

2024

Adv Techol

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This study aimed to investigate the effects of washing and ironing on the dimensions of cotton yarn and the structural characteristics in half Milano rib knitted fabrics made from this yarn. The primary objective was to understand the impact of different relaxation methods on the dimensional stability of both yarn and fabric, as well as on the structural properties of the resulting fabric. Specifically, the study looked at the effects of three distinct relaxation methods: dry relaxation over ten days, five cycles of ironing, and ten rounds of washing. The study found that dry relaxation had minimal effects on the structural characteristics of the knitted fabrics. On the other hand, washing significantly impacted the fabric's structural properties. The study aimed to compare dimensional changes in yarn and knitted fabrics. The results indicated similarities, particularly in the lengthwise shrinkage observed in fabrics and yarn during the initial five ironing cycles. However, after two washes, distinct dimensional changes became apparent. The experiment highlights the dimensional changes in yarn and fabrics, which exhibit similarities, particularly in lengthwise shrinkage, and become more pronounced with repeated washings. These research findings provide valuable insights into identifying optimal relaxation methods to achieve dimensional stability in cotton yarn and knitted fabrics.

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The analysis of dimensional stability of 1x1 RIB Co and Co/LY knitwear

Cited by 2 publications

References 2 publications

Studying the influence of common wet processes on the quality of 1 × 1 rib cotton/elastane knitted fabrics

Studying the influence of common wet processes on the quality of 1 × 1 rib cotton/elastane knitted fabrics

The impact of type relaxations on the structural characteristics and dimensional stability of half Milano rib cotton knitted fabrics

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