The effect of two softeners (Sapamine^® OC and Ultratex^® ASG) on physical properties of BTCA finished cotton fabric has been studied. Bleached cotton fabrics are treated with 1, 2, 3, 4-butane tetracarboxylic acid (BTCA) followed by finishing with a cationic and a silicone softener by conventional pad-dry-cure method. Properties, such as crease recovery angle, absorbency, whiteness index, tensile strength, moisture regain, surface morphology and crystallinity of the finished fabrics, have been evaluated. The crease recovery angle of the finished fabrics increases from 154° to 257° after treatment with BTCA and further increases to 266° after BTCA+silicone softener based finishing. The absorbency of cationic softener finished fabric is found to be higher than that of silicone softener finished fabrics. Tensile strength reduces after BTCA finishing by more than 50%, and about 17% softeners is recovered. Scanning electron microscope images show smooth ridges and surface characteristics of cotton fibres in BTCA treated samples as well as deposition of softener on the fibre surface in cationic and silicone softener finished fabrics.

中文翻译：

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纺织品柔软剂对BTCA处理的棉织物的影响

2个软化剂（SAPAMINE的影响^® OC和Ultratex ^®对BTCA整理棉织物的物理性能进行了研究。漂白的棉织物用1，2，3，4-丁烷四羧酸（BTCA）处理，然后通过常规的垫干固化方法用阳离子和有机硅柔软剂进行整理。已经评估了成品织物的性能，例如折皱回复角，吸收性，白度指数，拉伸强度，回潮率，表面形态和结晶度。在用BTCA处理后，成品织物的折皱恢复角从154°增大到257°，而在使用BTCA +硅氧烷软化剂进行整理后，折痕恢复角进一步增加到266°。发现阳离子柔软剂整理织物的吸收性高于硅氧烷柔软剂整理织物的吸收性。BTCA整理后，拉伸强度降低了50％以上，并回收了约17％的软化剂。