In textile inkjet printing, pigment inks have become one of the main colorants because of its excellent light fastness and suitable to all sorts of fibers. Pigments are applied as aqueous dispersion due to their water insoluble. Encapsulation of pigments with polymer can protect them from agglomeration and unwanted environmental influences such as UV radiation or acid and alkali. The encapsulation leads to better storage stability, color stability and durability, and the film formation can be adjusted. In this paper, organic pigments (P.B.65, 73, 14, and 83) were encapsulated with polystyrene and polyacrylates via miniemulsion polymerization. The properties of pigment dispersions dispersed in water and monomers were evaluated. With ultrasonication time prolong, the particle size of pigment dispersions decreased. For 30 min ultrasonication, the particle size of P. Y. 14 and 83 dispersions in water was smaller than that of P. Y. 65 and 73. The particle size of pigment dispersion in styrene was smaller than that in acrylates. The stability of P. Y 83/monomer dispersion was the best. There was almost no separated monomer layer in P.Y.83 dispersions, but significant separated monomer layer can be seen in P.Y.65 dispersions. The encapsulation ratios and efficiency of P. Y.83 with polymers were larger than that of P.Y.65. Acrylates tend to adsorb better on the surface of pigment particles than methacrylates, while the encapsulation ratios ofpolyacrylates were higher.
展开▼
机译：在纺织喷墨印刷中，颜料油墨已成为主要着色剂之一，因为其优异的耐光性，适用于各种纤维。由于它们的水不溶性，颜料作为水性分散体施加。用聚合物封装颜料可以保护它们免受凝聚和不需要的环境影响，例如紫外线辐射或酸和碱。封装导致更好的存储稳定性，颜色稳定性和耐久性，并且可以调节膜形成。本文通过微乳液聚合用聚苯乙烯和聚丙烯酸酯包封有机颜料（P.B.65,73,14和83）。评价分散在水和单体中的颜料分散体的性质。随着超声波延长的延长，颜料分散体的粒度降低。对于30分钟的超声，水中的粒径为Y. 14和83分散体的水分小于P. Y. 65和73的粒径。苯乙烯的颜料分散体的粒度小于丙烯酸酯的粒度。 P. Y 83 /单体分散体的稳定性是最好的。在p.y.83分散体中几乎没有分离的单体层，但是在p.y.65分散体中可以看出显着的分离的单体层。 P.Y.83与聚合物的封装比和效率大于P.Y.65。丙烯酸酯倾向于在颜料颗粒表面上吸附而不是甲基丙烯酸酯，而聚酰基聚合物的包封比较高。
展开▼
