范文编号:CL036 范文字数:10278,页数:21 摘 要:为了提高纺织品色牢度,染整工作者对染料进行选择,对工艺进行改进,但往往是加工成本高或与客户的要求还有些差距。而这时使用固色剂提高纺织品色牢度成本较低,工艺简单。但是以前人们一直沿用双氰胺与甲醛缩合的树脂固色剂作为直接染料、酸性染料染棉和丝绸的固色剂,后来人们发现该固色剂在整理后具有很高的游离甲醛含量(>200mg/kg),经其固色的幼儿内衣会导致皮肤发炎,甚至发生溃疡,对人体危害大,现在人们普遍研究无甲醛固色剂。本文先尝试合成咪唑,再以咪唑与环氧氯丙烷为主要原料,合成咪唑类固色剂,再以双氧水氧化甲醛,得到无醛固色剂。以及探讨一些反应条件,如反应时间长短,是否加入交联剂等对固色剂溶液粘度的影响。最后用涂4粘度计测试固色剂溶液的粘度,并测试固色剂的固色(水洗)牢度。 关键词:无醛固色剂;咪唑;粘度;交联剂;棉布 Abstract: To improve the textile color fastness,dyeing dye workers to choose to improve on the process,but often the high processing costs or customer requirements also some gaps.And then fixing agent used to improve color fastness of textiles low cost, simple process.However,it has been in use prior to condensation of dicyandiamide with formaldehyde resin fixing agent as direct dyes,acid dyes cotton and silk fixing agent,fixing agent was found to in the finished high free formaldehyde content (> 200mg/kg),with its fixation of child underwear cause skin inflammation and even ulcers,great harm to human body,is now generally of formaldehyde-free fixing agent.This article first attempts to synthesize imidazole,then imidazole with epichlorohydrin as raw materials,synthetic imidazole fixative,then hydrogen peroxide oxidation,get free fixing agent.And to explore the reaction conditions,such as the length of reaction time,such as whether to join the crosslinking agent on the fixing agent solution viscosity.Finally,Tu 4 viscometer test fixative solution viscosity,and test Fixing fixing agent (washing) fastness. 目 录 无醛固色剂的合成相关范文 |
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