Abstract:
The objectives of this research were to study problems in laundering Pique-structure knitwear of Playboy brand., the color change and dimensional stability, and the laundering efficiency in Pique-structure knitwear products.
The research methodology included investigating washing knitwear products problems in the Pique-structure of Playboy brand., distributing questionnaires in Bangkok to ask for consumers satisfaction after washing, employing Factorial in the CRD experiment plan studying three factors namely 1) powder and liquid powder control detergent, 2) top-load and front-load washing machines, and 3) washing cycles at 1, 3, 5, and 30. Color change and dimensional stability of the products were tested by means of AATCC and ISO testing standards and study the laundering efficiency of black color knitwear. After washing, comparison and analysis of the laundry efficiency were undertaken by means of ANOVA, and the average differences, by means of Duncans New Multiple Range Test (DMRT).
It was found that 64% of female consumers faced the following laundering problems: the dimensional stability at the average of 2.80 [dotplus] 1.28 and color change at the average of 2.65 [dotplus] 0.94. In relation to color change, the differences of the color were in the range of 0.16 0.52 while the color change was at the range of 4.0 4.5 and the color staining was at 4.5. Shrinkage of length of polo shirt fabric was less than wide-width cloths in the range of 0.66-3.50 and 3.25-5.00 percent, respectively. Concerning the laundering efficiency, it was found that the top-load washing machine brought about the cloth fuzzing in some parts of the clothes while the front-load caused the cloth fuzzing in all parts of the clothes. In addition, liquid detergent was suitable for both top-load and front-load washing machine, with 30 washing cycles, and had better performance than powder detergent.