胶粘剂对热敏纸发色和防水性能的影响  

The influence of adhesives on colour development and waterproof quality of thermal sensitive paper

作　　者：陈港[1] 梁二东[1] 刘映尧 

机构地区：[1]华南理工大学资源科学与造纸工程学院,广东广州510640

出　　处：《中华纸业》2007年第9期59-61,共3页China Pulp & Paper Industry

基　　金：教育部新世纪人才支持计划(D607001);2005年粤港关键领域重点支持项目(tco5b372-5)。

摘　　要：研究了热敏涂料中胶粘剂类型对热敏纸静态发色、动态发色以及防水性能的影响。实验发现,使用聚乙烯醇为主体的胶粘剂可使热敏纸获得良好的发色性能,胶粘剂中混入一定比例的羧基丁苯类胶乳可以使热敏纸的防水性能得到改善。实验条件下,在荧烷类无色染料/双酚A/硬脂酸酰胺发色体系中,适宜的胶粘剂比例是PVA∶羧基丁苯胶乳=70∶30,此时热敏纸的饱和发色光密度值可达1.10以上;防水性测试后,发色区域的最终图像保留率达80%以上。The influence of adhesives in heat sensitive coating on the static colour development, dynamic colour development and waterproof quality are probed. The experiment result shows that favorable colour development performance can be achieved for the adhesive with polyvinyl alcohol as major component and the waterproof quality can be improved when the carboxyl tetraphene latices was mixed into the adhesive in a certain proportion. Under the experiment condition, in the fluorane colourless dyestuff/bisphenol A/stearic acid amide colour developing system, the suitable adhesive proportion is PVA：carboxylated styrene-butadiene latex=70：30, and the saturation colour development optical density value of the thermal sensitive paper can reach 1.10 or upwards; the image retention ratio of the colour development region after the water resistance test can reach 80% and upwards.

关 键 词：热敏纸 发色性能 防水性 胶粘剂 

分 类 号：TS727.5[轻工技术与工程—制浆造纸工程]