CURABLE LIQUIDS AND INKS FOR TOYS AND FOOD PACKAGING APPLICATIONS
申请人:Claes Roland
公开号:US20110124768A1
公开(公告)日:2011-05-26
A free radical curable liquid for inkjet printing of food packaging materials includes no initiator or otherwise one or more initiators selected from the group consisting of non-polymeric di- or multifunctional initiators, oligomeric initiators, polymeric initiators, and polymerizable initiators; wherein the polymerizable composition of the liquid consists essentially of: a) 25-100 wt % of one or more polymerizable compounds A having at least one acrylate group G1 and at least one second ethylenically unsaturated polymerizable functional group G2 different from the group G1; b) 0-55 wt % of one or more polymerizable compounds B selected from the group consisting of monofunctional acrylates and difunctional acrylates; and c) 0-55 wt % of one or more polymerizable compounds C selected from the group consisting of trifunctional acrylates, tetrafunctional acrylates, pentafunctional acrylates and hexafunctional acrylates. If the weight percentage of compounds B>24 wt %, then the weight percentage of compounds C>1 wt %; and wherein all weight percentages of A, B and C are based upon the total weight of the polymerizable composition. At least one polymerizable compound B or C is present in the polymerizable composition if the free radical curable liquid contains no initiator. The polymerizable compound A has a copolymerization ratio of
0.002<
r
2/
r
1<0.200
with r1 and r2 representing the copolymerization parameters of methyl-G1 respectively methyl-G2 determined according to the method of Kelen-Tudos.
Curable liquids and inks for toys and food packaging applications
申请人:Agfa Graphics N.V.
公开号:EP2053101A1
公开(公告)日:2009-04-29
A free radical curable liquid for inkjet printing of food packaging materials comprising no initiator or otherwise one or more initiators selected from the group consisting of non-polymeric di- or multifunctional initiators, oligomeric initiators, polymeric initiators and polymerizable initiators;
wherein the polymerizable composition of said liquid consists essentially of:
a) 25 - 100 wt% of one or more polymerizable compounds A having at least one acrylate group G1 and at least one second ethylenically unsaturated polymerizable functional group G2 selected from the group consisting of a vinlyether group, an allylether group and a allylester group;
b) 0 - 55 wt% of one or more polymerizable compounds B selected from the group consisting of monofunctional acrylates and difunctional acrylates; and
c) 0 - 55 wt% of one or more polymerizable compounds C selected from the group consisting of trifunctional acrylates, tetrafunctional acrylates, pentafunctional acrylates and hexafunctional acrylates, with the proviso that if the weight percentage of compounds B > 24 wt%, then the weight percentage of compounds C > 1 wt%;
and wherein all weight percentages of A, B and C are based upon the total weight of the polymerizable composition; and
with the proviso that at least one polymerizable compound B or C is present in the polymerizable composition if the free radical curable liquid contains no initiator.
一种用于喷墨打印食品包装材料的自由基固化液体,不含引发剂,或含有一种或多种引发剂,这些引发剂选自非聚合二或多功能引发剂、低聚引发剂、聚合引发剂和可聚合引发剂组成的组;
其中所述液体的可聚合成分主要包括
a) 25 - 100 wt%的一种或多种可聚合化合物 A,其至少具有一个丙烯酸酯基团 G1 和至少一个第二乙烯基不饱和可聚合官能团 G2,该第二乙烯基不饱和可聚合官能团选自乙烯醚基团、烯丙基醚基团和烯丙基醚基团组成的组;
b) 0 - 55 wt%的一种或多种可聚合化合物 B,选自由单官能丙烯酸酯和双 官能丙烯酸酯组成的组;以及
c) 0 - 55 wt%的一种或多种可聚合化合物 C,选自由三官能丙烯酸酯、四官能丙烯酸酯、 五官能丙烯酸酯和六官能丙烯酸酯组成的组,但如果化合物 B 的重量百分比大于 24 wt%,则化合物 C 的重量百分比大于 1 wt%;
其中 A、B 和 C 的所有重量百分比均基于可聚合组合物的总重量;以及
但如果自由基固化液体不含引发剂,则至少有一种可聚合化合物 B 或 C 存在于可聚合组合物中。