A temperature sensitive photosensitive ink relates to the field of materials. The photosensitive ink integrates the photosensitive material and the temperature sensitive material, so that the two can be well integrated through scientific and rational configuration. The obtained temperature sensitive ink has good printing performance and can be used to produce a pattern with double color change effect of temperature change and photosensitive discoloration. At the same time, the preparation method of the temperature sensitive photosensitive ink is simple and easy to operate. It can be produced efficiently and extensively through mixing and grinding operations, so it is suitable for application and popularization. A anti counterfeiting label is prepared by the steps of printing, thermal infrared curing, exposure, imaging and UV curing by using the temperature sensitive ink material. The anti-counterfeit label has high resolution, good stability, excellent wear resistance, acid alkali resistance and aging resistance. At the same time, it has double color discoloration performance of temperature discoloration and photosensitive discoloration, good anti-counterfeiting effect and high safety coefficient, and it is difficult to be imitated.
【技术实现步骤摘要】
温变感光油墨及其制备方法、防伪标签及其制备方法
本专利技术涉及材料领域,具体而言,涉及一种温变感光油墨及其制备方法、防伪标签及其制备方法。
技术介绍
3D动态防伪标签是一类微透镜阵列与阵列图像或文字相结合的产品,动态效果明显,肉眼直观可见,是未来取代目前主流防伪技术的高端技术之一。但是,目前的3D动态防伪标签主要是以光感变色产品为主,变色条件单一,防伪效果较差,容易被人仿制。
技术实现思路
本专利技术的第一目的在于提供一种温变感光油墨,其配方配比合理,得到的温变感光油墨具有感光变色和感温变色的双重变色效果。本专利技术的第二目的在于提供一种温变感光油墨的制备方法,其制备方法简单,对设备需求低,适合大规模的工业化生产。本专利技术的第三目的在于提供一种防伪标签,其采用上述温变感光油墨制备得到,其具有感光变色和感温变色的双重防伪效果,防伪效果较好。本专利技术的第四目的在于提供一种防伪标签的制备方法,其制备方法简单,流程设计合理,能够高效地用于生产上述防伪标签。本专利技术的实施例是这样实现的:一种温变感光油墨,按重量份数计,其原料包括:感光预聚物60~80份,紫外强化剂2~5份 ...
【技术保护点】
一种温变感光油墨,其特征在于,按重量份数计,其原料包括:感光预聚物60~80份,紫外强化剂2~5份,光引发剂3~8份,增稠剂0.5~1份,溶解助剂5~15份,消泡剂0.05~0.5份,附着力促进剂0.01~0.1份,醇溶性颜料1~5份,温变色粉1~3份;其中,所述感光预聚物由酚醛环氧树脂和丙烯酸制备得到。
【技术特征摘要】
1.一种温变感光油墨,其特征在于,按重量份数计,其原料包括:感光预聚物60~80份,紫外强化剂2~5份,光引发剂3~8份,增稠剂0.5~1份,溶解助剂5~15份,消泡剂0.05~0.5份,附着力促进剂0.01~0.1份,醇溶性颜料1~5份,温变色粉1~3份;其中,所述感光预聚物由酚醛环氧树脂和丙烯酸制备得到。2.根据权利要求1所述的温变感光油墨,其特征在于,按重量份数计,所述原料包括:所述感光预聚物65~75份,紫外强化剂3~5份,光引发剂4~6份,增稠剂0.5~0.8份,溶解助剂8~12份,消泡剂0.05~0.2份,附着力促进剂0.01~0.05份,醇溶性颜料1~3份,温变色粉1~3份。3.根据权利要求1所述的温变感光油墨,其特征在于,所述酚醛环氧树脂包括邻甲酚环氧树脂和线型酚醛环氧树脂中的至少一种,优选地,所述酚醛环氧树脂包括邻甲酚环氧树脂和线型酚醛环氧树脂,所述邻甲酚环氧树脂与所述线型酚醛环氧树脂的质量比为1:2~4;优选地,所述酚醛环氧树脂的软化温度为50~70℃。4.根据权利要求1所述的温变感光油墨,其特征在于,所述紫外强化剂包括乙二醇乙醚醋酸酯、聚二季戊四醇六丙烯酸酯和三羟甲基丙烷三丙烯酸酯中的至少一种;优选地,所述紫外强化剂包括聚二季戊四醇六丙烯酸酯和三羟甲基丙烷三丙烯酸酯。...
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