申请人:MILLIKEN RESEARCH CORPORATION
公开号:EP0247782A2
公开(公告)日:1987-12-02
A process is provided for the coloration of a preformed polyester resin shaped article having improved dye migration properties, which comprises:
(a) coloring said article with a coloring agent in an amount sufficient to provide coloration to said shaped article; said coloring agent having the formula
wherein R is an organic dyestuff radical; the polymeric constituent is selected from polyalkylene oxides and copolymers of polyalkylene oxides in which the alkylene moiety of the polymeric constituent contains 2 or more carbon atoms and such polymer constituent has a molecular weight of from about 132 to about 500; and n is an integer of fromm 1 to about 12; and X is selected from -OH, -NH2, -SH, -OCORi, -C02H, -CO2R1, -S03H, -S03Rl phosphate, phosphonite, urea, urethane, alkoxyl and alkoxide, wherein R1 is a lower alkyl group containing from 1 to about 6 carbon atoms; and
(b) grafting said coloring agent to said article by heating said article to a temperature below a temperature at which said article will melt, but to a high enough temperature and for a period of time sufficient to achieve grafting of said coloring agent to said article.
本发明提供了一种预成型聚酯树脂成型品的着色工艺,该工艺具有更好的染料迁移特性,包括
(a) 用一定量的着色剂对所述制品进行着色,其用量足以使所述成型制品着色;所述着色剂的式子为
其中 R 是有机染料自由基;聚合成分选自聚亚烷基氧化物和聚亚烷基氧化物共聚物,其中聚合成分的亚烷基含有 2 个或更多碳原子,且该聚合成分的分子量为约 132 至约 500;n是m 1至约12的整数;X选自-OH、-NH2、-SH、-OCORi、-C02H、-CO2R1、-S03H、-S03Rl磷酸盐、亚磷酸盐、脲、聚氨酯、烷氧基和烷氧化物,其中R1是含有1至约6个碳原子的低级烷基;和
(b) 将所述着色剂接枝到所述制品上,方法是将所述制品加热到低于所述制品将熔化的温度,但温度要足够高,时间要足够长,以实现所述着色剂接枝到所述制品上。