A comparative study on physical and mechanical properties of 100% cotton denim and blended cotton denim after industrial washing

This research work was conducted to examine the effects of two types of washing procedures e.g., stone enzyme wash, and bleach wash on the physical and mechanical properties of 95% cotton (CTN), 5% recycled CTN denim, and blended CTN denim containing 80% cotton, 18% polyester, 2% spandex. Two fabrics were dyed with medium brand shade indigo dyes. The fabric weight, EPI and PPI, tear strength, breaking strength, color fastness to accelerated laundering, color fastness to water, color fastness to perspiration, and color fastness to crocking were carried out to key changes of physical and mechanical properties in two fabrics. This study has demonstrated the changes in two fabrics before washing (A) and after washing (B) accordingly. In the case of color fastness results ratings were similar in both fabrics. In contrast, the color fastness to crocking or rubbing showed different results. This research was carried out to investigate the parameter variations and choose which fabric exhibits the best or not.