Abstract
Washing is considered as the final process of garments finishing. Acid washing is one kind of finishing treatment used for making sewn garments aesthetic, fashionable, soft, comfortable and also adding value to the final garments. This paper investigates the effect of the acid washing (with thermocol balls and potassium permanganate) on different physical properties of three knitted garments (Single Jersey 100% Cotton T-shirt, Single Jersey 95% Cotton 5% Spandex T-Shirt and 1 × 1 Rib100% Cotton T-Shirt). Typical washing procedures and techniques were followed and then physical properties were analyzed under standard condition. It is observed that fabric weight, CPI, WPI, spirality and shrinkage increase while bursting strength, stitch length absorbency decrease after washing treatment. pH of all the samples is under controlled and lies between 7 to 8. There is no change in pilling, colorfastness to wash, water and dry rubbing while a little bit decrease in wet rubbing.
Highlights
Nowadays, faded textile products have become very popular among the young customers all over the world [1]
Acid washing in knitted garments is a new technique which is done by potassium permanganate and pumice stone or other substitutes [13] [14]
The results showed that when enzyme wash was applied on the knit garments, it improved all the tested properties of knit garments, and it reduced the hairy fibers from the fabric surface
Summary
Nowadays, faded textile products have become very popular among the young customers all over the world [1]. Potassium permanganate is an inorganic chemical compound with the chemical formula KMnO4 [15] It is a strong oxidizing agent and used to make color fading effect on sewn garments [16]-[18]. In 1951, the researchers of a German company named BASF successfully restructured chemical bonding of polystyrene (a synthetic petroleum product) molecules and developed a substance named stretch polystyrene This substance was named Thermocol, which nowadays is manufactured through a simple process. Elias et al (2015) studied the effect of change in concentration of KMnO4 and processing time on physico-mechanical properties of denim jeans during acid washing. The effect of acid wash with thermocol balls and potassium permanganate on physico mechanical properties on knitted garments was not studied in the past research. Three knitted garments (Single Jersey 100% Cotton T-shirt, Single Jersey 95% Cotton 5% T-Shirt and 1 × 1 Rib100% Cotton T-Shirt) were washed with H3PO4, KMnO4 along with thermocol balls and various properties were analyzed according to standard methods
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