共查询到18条相似文献,搜索用时 484 毫秒
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研究了变性腈纶胶与活性染料的反应性、印花给色量、可洗性、流变性等性质,证明变性腈纶胶可以取代海藻酸钠糊作为活性染料的理想印花原糊。 相似文献
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纯棉活性染料印花是染料印花的重要工艺之一。长期以来,活性染料印花的原糊都以海藻酸钠为主要糊料,海藻酸钠分子中含有大量的阴离子羧基,对重金属离子(Ca∧2 、Mg∧2 、Fe∧2 等)会产生沉淀凝胶的作用,破坏色浆的稳定性能,影响染色牢度。与阴离子化合物多存在分子间的静电斥力(活性染料多属于阴荷性),防止了活性染料与海藻酸钠的结合,促进了染料的上染。由海藻酸钠原糊制得的色浆渗透性、吸湿性均很好,而给色量却低,尤其是在圆网印制中更低,均匀性也相对较差。 相似文献
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研究了用作活性印花糊料的高取代度羧甲基纤维素(CMC)的综合性能。结果表明,高取代度CMC成糊率高,色牢度良好,但得色量不如海藻酸钠(SA),特别是透网性、可脱除性和印花织物手感,比SA逊色很多。高取代度CMC目前还不能满足活性印花大生产的使用要求。 相似文献
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羧甲基淀粉作印花糊料的应用研究 总被引:1,自引:0,他引:1
本文介绍了以淀粉为原料制备羧甲基淀粉的合成方法及用作印花糊料的性能特点,并将之与海藻酸钠进行比较,证明羧甲基淀粉不仅价格低廉,而且性能较好,能代替海藻酸钠,是一种新型的印花糊料。 相似文献
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为使双面数码喷墨印花蚕丝织物获得良好的表面得色和花型轮廓清晰度,采用同花同色双面数码喷印技术,探究上浆方式对蚕丝织物双面数码喷印效果的影响,研究7种印花糊料在蚕丝织物上的双面数码喷印效果,并通过复配技术开发能获得优良双面数码喷印效果的上浆糊料。研究表明:获得最佳双面数码喷印效果的上浆方式为双面刮浆;双面数码喷印后的蚕丝织物表面得色量比单面数码喷印高且得色更均匀;当海藻酸钠和羧甲基淀粉复配比例为5∶5时,蚕丝织物可以获得最佳的同花同色双面数码喷印效果。 相似文献
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通过比较,分析海藻酸钠糊料,海藻酸钠与活性印花增稠剂KG-401混合糊料的粘度值,PVI值,认为后者更适合平网活性染料印花的糊料制备。 相似文献
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Poly(acrylic acid)-starch composites were prepared by polymerizing acrylic acid with maize starch using KMnO4/citric acid as redox initiator system. These composites were used as pastes for printing cotton fabrics with reactive dyes. Results indicate that these composites are of great potential value as thickeners for printing according to the flat screen technique using steam as well as thermal means for dye fixation on the cotton fabric. The colour strength as well as overall fastness properties are comparable, if not superior, to those fabric samples printed using sodium alginate as a thickener. 相似文献
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合成增稠剂用于活性染料网印的探讨 总被引:3,自引:0,他引:3
通过大量实验数据,从分析合成增稠剂的物化性能和流变特性入手,论述了合成增稠剂应用于活性染料圆(平)网印花的适应性,并与常规海藻酸钠糊料进行性能对比。实验证明,合成增稠剂是印制高网目精细花型的优良糊料,合理推广应用合成增稠剂则是提高产品质量和产品档次的有效措施。 相似文献
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Cyanoethylated starches were prepared by reacting rice starch with acrylonitrile in presence of sodium hydroxide. The suitability of the modified starches in printing cotton fabrics with reactive dyes was investigated through application of pastes containing cyanoethylated starches and reactive dyes to cotton fabric, fixation of the prints by steaming or thermal treatment, assessment of colour strength and overall fastness properties of the prints, examination of rheological properties and carrying out parallel experiments using sodium alginate, unmodified starch and alkali-treated starch. Cyanoethylated starches particularly that containing 1.75% N proved to be a potential thickener for printing cotton with reactive dyes. 相似文献