Treatment of cotton twill with liquid ammonia, followed by aqueous rinsing and drying left the fabric supple and soft. Pretreatment of cotton twill with liquid ammonia prior to cross-linking for durable press improved wash-wear rating and abrasion resistance. At the same time, it improved significantly the hand and reduced initial modulus of extension with improvement of resiliency.
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Gogek et al. (1969) studied this question.
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