CN106046310A - 一种耐研磨的水性烟包油墨树脂的制备方法 - Google Patents

一种耐研磨的水性烟包油墨树脂的制备方法 Download PDF

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CN106046310A
CN106046310A CN201610512101.6A CN201610512101A CN106046310A CN 106046310 A CN106046310 A CN 106046310A CN 201610512101 A CN201610512101 A CN 201610512101A CN 106046310 A CN106046310 A CN 106046310A
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刘都宝
刘藏
陶杰
鲍俊杰
赵洪涛
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Anhui Zhong En Chemical Co Ltd
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Abstract

本发明公开一种耐研磨的水性烟包油墨树脂的制备方法，是将5～10摩尔份聚碳酸酯多元醇和5～15摩尔份丙烯酸接枝改性聚酯多元醇在100～150℃下真空脱水1～4 h，降至室温后加入10～20摩尔份异佛尔酮二异氰酸酯和5～15摩尔份六亚甲基二异氰酸酯，加入丙酮溶解，升温至80～90℃，滴加0.2～0.25摩尔份引发剂，反应1.5～3h后，得到预聚体；将2～5摩尔份小分子二元醇和1～3摩尔份二羟甲基丙酸加入预聚体中，升温至60～75℃，扩链反应1～1.5 h；降至室温后，在高速搅拌下加入1～3摩尔份三乙胺，搅拌5～10 min，加水乳化得到耐研磨的水性烟包油墨树脂。本发明制备的水性烟包油墨树脂的VOC含量极低，且在油墨的制备中耐研磨性能、成膜性能和展色性能都比较好。

Description

一种耐研磨的水性烟包油墨树脂的制备方法
技术领域
本发明属于油墨树脂技术领域，具体地说是一种耐研磨的水性烟包油墨树脂的制备方法。
背景技术
目前国家烟草最新行业标准《关于卷烟条与盒包装纸中VOCS的限量指标》规定了卷烟条与盒包装纸中挥发性有机化合物（苯、甲苯、乙苯、二甲苯、乙醇、异丙醇、正丁醇、丙酮、丁酮、乙酸乙酯、乙酸异丙酯、乙酸正丙酯、乙酸正丁酯、丙二醇甲醚、4-甲基-2-戊酮和环己酮）的限量指标、抽样、测试及判定规则。水性树脂由于无毒、无异味、不可燃、不污染环境、节约能源、运输安全、加工方便、成膜透气性好等优点，作为水性油墨的连接料，被广泛用于水性油墨的配方中。由于烟包油墨对VOC（挥发性有机化合物）的要求比较高，因此水性树脂已经成为烟包油墨树脂的主要原料。但是，水性油墨主要由水性树脂、有机颜料、溶剂及相关助剂经复合研磨加工而成。目前由于烟草行业标准的提高，水性树脂的VOC含量易超标，且水性树脂的耐研磨性能较差，容易破乳，因此颜料需要单独研磨后，再和水性树脂及助剂混合制备水性油墨，造成水性油墨的生产工艺复杂。水性聚氨酯树脂和丙烯酸树脂是烟包油墨的主要粘结料，聚氨酯树脂的与溶剂性相容性好，耐温性好，但不耐研磨，丙烯酸虽然耐磨性好，但与溶剂相容性差，易破乳。
发明内容
本发明的目的在于提供一种耐研磨的水性烟包油墨树脂的制备方法，该方法制备的水性烟包油墨树脂的VOC含量接近于0，且具有优异的耐溶剂性和耐研磨性。
为实现上述目的，本发明提供了一种耐研磨的水性烟包油墨树脂的制备方法，包括以下步骤：
（1）将5～10摩尔份聚碳酸酯多元醇和5～15摩尔份丙烯酸接枝改性聚酯多元醇加入到反应釜中，在100～150℃下真空脱水1～4 h，降至室温后再加入10～20摩尔份异佛尔酮二异氰酸酯和5～15摩尔份六亚甲基二异氰酸酯，加入20～40摩尔份丙酮溶解，升温至80～90℃，滴加0.2～0.25摩尔份引发剂，反应1.5～3h后，得到预聚体；
（2）将2～5摩尔份小分子二元醇和1～3摩尔份二羟甲基丙酸加入预聚体中，升温至60～75℃，扩链反应1～1.5 h；
（3）降至室温后，在高速搅拌下加入1～3摩尔份三乙胺，搅拌5～10 min，加水乳化得到耐研磨的水性烟包油墨树脂。
所述的引发剂是过硫酸钾、偶氮二异丁氰；所述的小分子二元醇是1,2-丙二醇、1,4-丁二醇、二甘醇。
本发明采用无机引发剂和自乳化聚合（丙烯酸接枝改性聚酯多元醇含有羧基，具有自乳化作用），得到的水性烟包油墨树脂的VOC含量极低，且水性烟包油墨树脂在油墨的制备中耐溶剂、耐研磨性能、成膜性能和展色性能都比较好，可用于制备高质量的油墨。
具体实施方式
以下结合实施例进一步说明发明。
实施例1
耐研磨的水性烟包油墨树脂的制备方法，包括以下步骤：
（1）将5 mol聚碳酸酯二元醇和5 mol丙烯酸接枝改性聚酯二元醇加入到反应釜中，在100℃下真空脱水4 h，降至室温后再加入10 mol异佛尔酮二异氰酸酯（IPDI）和10 mol六亚甲基二异氰酸酯（HDI），加入20 mol丙酮溶解，升温至80℃，滴加0.2 mol过硫酸钾，反应3 h后，得到预聚体；
（2）将2 mol 1,4-丁二醇（BDO）和1 mol二羟甲基丙酸（DA）加入预聚体中，升温至60℃，扩链反应1.5 h；
（3）降至室温后，在高速搅拌下，加入1 mol三乙胺，搅拌5 min后加水乳化得到耐研磨的水性烟包油墨树脂。
本实施例制得的耐研磨的水性烟包油墨树脂的VOC含量<10 ppm（VOC含量小于1g/L即为零VOC），加颜料研磨未破乳，展色性一般。
实施例2
耐研磨的水性烟包油墨树脂的制备方法，包括以下步骤：
（1）将10 mol聚碳酸酯二元醇和5 mol丙烯酸接枝改性聚酯二元醇加入到反应釜中，在150 ℃下真空脱水1 h，降至室温后再加入15 mol异佛尔酮二异氰酸酯（IPDI）和15 mol六亚甲基二异氰酸酯（HDI），加入40 mol丙酮溶解，升温至90 ℃，滴加0.25 mol偶氮二异丁氰，反应1.5 h后，得到预聚体；
（2）将3 mol 1,2-丙二醇和3 mol二羟甲基丙酸（DA）加入预聚体中，升温至75 ℃，扩链反应1.0 h；
（3）降至室温后，在高速搅拌下，加入3 mol三乙胺，搅拌10 min后加水乳化得到耐研磨的水性烟包油墨树脂。
本实施例制得的耐研磨的水性烟包油墨树脂的VOC含量<12 ppm，加颜料研磨未破乳，单色性好。
实施例3
耐研磨的水性烟包油墨树脂的制备方法，包括以下步骤：
（1）将5 mol聚碳酸酯二元醇和15 mol丙烯酸接枝改性聚酯二元醇加入到反应釜中，在120 ℃下真空脱水3 h，降至室温后再加入20 mol异佛尔酮二异氰酸酯（IPDI）和5 mol六亚甲基二异氰酸酯（HDI），加入35 mol丙酮溶解，升温至85 ℃，滴加0.2 mol过硫酸钾，反应2h后，得到预聚体；
（2）将5 mol二甘醇和2 mol二羟甲基丙酸（DA）加入预聚体中，升温至70 ℃，扩链反应1.2 h；
（3）降至室温后，在高速搅拌下，加入2 mol三乙胺，搅拌5 min后加水乳化得到耐研磨的水性烟包油墨树脂。
本实施例制得的耐研磨的水性烟包油墨树脂的VOC含量<11 ppm，加颜料研磨未破乳，单色性好。

Claims (2)

1.一种耐研磨的水性烟包油墨树脂的制备方法，其特征在于，包括以下步骤：
（1）将5～10摩尔份聚碳酸酯多元醇和5～15摩尔份丙烯酸接枝改性聚酯多元醇加入到反应釜中，在100～150℃下真空脱水1～4 h，降至室温后再加入10～20摩尔份异佛尔酮二异氰酸酯和5～15摩尔份六亚甲基二异氰酸酯，加入20～40摩尔份丙酮溶解，升温至80～90℃，滴加0.2～0.25摩尔份引发剂，反应1.5～3h后，得到预聚体；
（2）将2～5摩尔份小分子二元醇和1～3摩尔份二羟甲基丙酸加入预聚体中，升温至60～75℃，扩链反应1～1.5 h；
（3）降至室温后，在高速搅拌下加入1～3摩尔份三乙胺，搅拌5～10 min，加水乳化得到耐研磨的水性烟包油墨树脂。
2.根据权利要求1所述的耐研磨的水性烟包油墨树脂的制备方法，其特征在于，所述的引发剂是过硫酸钾、偶氮二异丁氰；所述的小分子二元醇是1,2-丙二醇、1,4-丁二醇、二甘醇。
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Application publication date: 20161026