Textile Coloration and Finishing (한국염색가공학회지)
- Volume 10 Issue 2
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- Pages.1-7
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- 1998
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- 1229-0033(pISSN)
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- 2234-036X(eISSN)
Properties of Alkali Hydrolyzed Polyester Fabric by Tank/Liquor-flow Method
Tank/liquor-flow 방식에 의한 폴리에스테르 직물의 감량특성
Abstract
In this study, PET fabric was hydrolyzed with NaOH using the Tank m/c and Liquor-flow m/c to determine the alkali hydrolysis properties of PET fabrics. The results were as follows : The weft density and tensile strength of PET fabrics hydrolyzed with Liquor-flow m/c were higher than those hydrolyzed with Tank m/c in case of less than 10% of weight loss. However, above 10% of weight loss, reverse phenomenon was showed. K/S value of hydrolyzed PET with Liquor-flow m/c was higher than that with Tank m/c above 10% of weight loss. It was observed that the micropores of PET surface were collapsed due to physical force(abrasion and collision) during hydrolysis. Bending rigidity of hydrolyzed PET fabric was about 32% and 40% of bending rigidity of warp and weft direction of untreated fabric at 7% of weight loss, respectively. Above 7% of weight loss, decrease rate was decreased.
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