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.
一种用于食品包装材料的喷墨印刷的自由基可固化液体,不包括引发剂或者选择自非聚合二元或多元引发剂、寡聚引发剂、聚合引发剂和可聚合引发剂中的一种或多种引发剂;其中所述液体的聚合组成物质基本上包括:a)25-100重量%的至少具有一个丙烯酸酯基团G1和至少一个与G1不同的第二个乙烯基不饱和聚合可功能基团G2的一个或多个聚合可化合物A; b)0-55重量%的单官能丙烯酸酯和双官能丙烯酸酯中选择的一个或多个聚合可化合物B;以及c)0-55重量%的三官能丙烯酸酯、四官能丙烯酸酯、五官能丙烯酸酯和六官能丙烯酸酯中选择的一个或多个聚合可化合物C。如果化合物B的重量百分比> 24重量%,则化合物C的重量百分比> 1重量%; 其中A,B和C的所有重量百分比都基于聚合可组分的总重量。如果自由基固化液体不含引发剂,则至少存在一种聚合可化合物B或C在聚合可组分中。聚合可化合物A具有0.002
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申请人:——
公开号:US4000313A
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