CN106318289B - 一种利用黑水虻蛹制备标签胶的方法 - Google Patents
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Abstract
本发明涉及一种利用黑水虻蛹制备标签胶的方法，属于标签胶制备技术领域。本发明先对黑水虻蛹进行榨汁，收集蛹汁和残渣，将残渣晒干后研磨成粉末，将粉末和水混合后与尿素反应，反应后加入氧化锌混合得混合物，备用，将玉米淀粉和水混合匀浆后进行氧化反应得氧化淀粉液，并与蛹汁混合后与丙烯酸、丙烯酸丁酯和醋酸乙烯酯进行反应，反应后得反应物，将反应物和备用的混合物混合后加入反应釜中，加入羧甲基纤维素钠、纳米有机膨润土和四硼酸钠，搅拌混合后出料得标签胶。本发明将制备得到的标签胶粘结力好，防水性能好，不易脱落，固化后牢度大，韧性好，胶层不发脆，不脱落，并且安全环保，制备工艺简单，成本低廉。
Description
技术领域
本发明涉及一种利用黑水虻蛹制备标签胶的方法，属于标签胶制备技术领域。
背景技术
印刷业所称的标签，大部分是用来标识自己产品的相关说明的印刷品，并且大部分都是以背面自带胶的，但也有一些印刷时不带胶的，也可称为标签，举例：大部分的啤酒标签，印刷时都是无胶的，是厂商通过刷标签胶方式帖上去的，而这也叫标签，所以说，标签不一定是有胶的，有胶的标签就是通俗称的“不干胶标签”。
最初的标贴是以手工完成的，因而对粘合剂的要求并不高，一般是以天然胶，动物胶及其改性品种为主，例如淀粉胶、酪素胶、天然胶、鱼胶、骨胶等。其缺点是干燥慢，初粘力差，耐水性低，运输和贮存过程标签易脱落。随着科学的发展，很多产品的包装是在自动线上完成的，标签粘贴也是自动化的一部分：因而对标签胶提出了更高的要求。这些要求包括：①初粘力好，标签瞬间施压后不脱落，不滑移，不翘曲。②干燥速度快。适合高速自动化标贴。③固化后牢度大，韧性好，胶层不发脆，不脱落。④无毒，无污染。⑤有利于包装的回收。
目前，胶粘剂正在朝着环保节能的方向发展。以天然植物产物作主要原料生产胶粘剂也受到广泛关注。植物蛋白作为主要的天然产物之一，因其可再生性，多样性，生物环境相容性等优点而备受关注。在世界范围内，大宗的植物蛋白主要为大豆蛋白、小麦蛋白、花生蛋白、油菜蛋白、芝麻蛋白、向日葵蛋白和棉籽蛋白等。目前作为胶粘剂应用和研究最多的蛋白质是大豆蛋白，这是因为大豆种植量很大，蛋白含量很高可达40%，大豆蛋白制取工艺比较成熟且脱脂豆粉、大豆浓缩蛋白、大豆分离蛋白改性做胶粘剂的历史悠久，效果良好。
发明内容
本发明所要解决的技术问题：针对目前直接利用大豆蛋白制得的胶粘剂粘结强度不够，抗水性能差，尚不能很好地达到生产中需要的标准的问题，本发明提供一种利用黑水虻蛹制备标签胶的方法，本发明先对黑水虻蛹进行榨汁，收集蛹汁和残渣，将残渣晒干后研磨成粉末，将粉末和水混合后与氨水反应，反应后加入氧化锌混合得混合物，备用，将玉米淀粉和水混合匀浆后进行氧化反应得氧化淀粉液，并与蛹汁混合后与丙烯酸、丙烯酸丁酯和醋酸乙烯酯进行反应，反应后得反应物，将反应物和备用的混合物混合后加入反应釜中，加入羧甲基纤维素钠、纳米有机膨润土和四硼酸钠，搅拌混合后出料得标签胶。本发明将制备得到的标签胶粘结力好，防水性能好，不易脱落，固化后牢度大，韧性好，胶层不发脆，不脱落，并且安全环保，制备工艺简单，成本低廉。
为解决上述技术问题，本发明采用的技术方案是：
（1）称取200～300g黑水虻蛹，用去离子水清洗表面后加入榨汁机中榨汁，分别收集得蛹汁和残渣，将残渣放入太阳下暴晒3～5天后粉碎，过60～80目筛后得粉末，将粉末按质量比1:5与去离子水混合后加入粉末质量8～10%尿素，搅拌反应2～3h，反应后加入2～4g氧化锌，搅拌混合30～50min，得混合物，备用；
（2）称取60～80g玉米淀粉，按质量比1:5与去离子水混合，置于匀浆机中，在300～500r/min条件下搅拌混合20～30min后加入3～5g次氯酸钠和5～7g硫酸亚铁，加入后搅拌反应1～2h，反应结束后得氧化淀粉液，按质量比3:1将氧化淀粉液和上述蛹汁混合，得混合液；
（3）在500mL的三口烧瓶中加入15～20g丙烯酸、8～10g丙烯酸丁酯、5～8g醋酸乙烯酯、3～5g聚乙二醇辛基苯基醚、80～120mL去离子水和15～20g上述混合液，放入水浴中，在50～60℃温度下搅拌乳化20～30min，乳化后加入0.3～0.5g过硫酸铵，搅拌反应3～5h后冷却至室温出料，得反应物；
（4）将步骤（1）备用的混合物与上述反应物按质量比1:8混合后放入反应釜中，在45～55℃条件下依次加入1～3g羧甲基纤维素钠、2～4g纳米有机膨润土和0.2～0.4g四硼酸钠，搅拌混合1～2h后出料，即可得到标签胶。
本发明的应用方法：将本发明制备的标签胶按15～20g/m2均匀涂覆于PET膜标签基材上，将覆标签胶的标签基材粘贴在预先洗净干燥的玻璃瓶上，并按压平整后放入室温下自然干燥即可，标签胶的粘结强度为150～200N，抗水时间为10～15h，使用3～4年没有出现脱落、发脆现象。
本发明与其他方法相比，有益技术效果是：
（1）本发明将制备得到的标签胶粘结力好，不易脱落，防水性能好；
（2）本发明将制备得到的标签胶固化后牢度大，韧性好，胶层不发脆，不脱落；
（3）并且安全环保，制备工艺简单，成本低廉。
具体实施方式
称取200～300g黑水虻蛹，用去离子水清洗表面后加入榨汁机中榨汁，分别收集得蛹汁和残渣，将残渣放入太阳下暴晒3～5天后粉碎，过60～80目筛后得粉末，将粉末按质量比1:5与去离子水混合，加入粉末质量8～10%尿素，搅拌反应2～3h，反应后加入2～4g氧化锌，搅拌混合30～50min，得混合物，备用；称取60～80g玉米淀粉，按质量比1:5与去离子水混合，置于匀浆机中，在300～500r/min条件下搅拌混合20～30min后加入3～5g次氯酸钠和5～7g硫酸亚铁，加入后搅拌反应1～2h，反应结束后得氧化淀粉液，按质量比3:1将氧化淀粉液和上述蛹汁混合，得混合液；在500mL的三口烧瓶中加入15～20g丙烯酸、8～10g丙烯酸丁酯、5～8g醋酸乙烯酯、3～5g聚乙二醇辛基苯基醚、80～120mL去离子水和15～20g上述混合液，放入水浴中，在50～60℃温度下搅拌乳化20～30min，乳化后加入0.3～0.5g过硫酸铵，搅拌反应3～5h后冷却至室温出料，得反应物；将备用的混合物与上述反应物按质量比1:8混合后放入反应釜中，在45～55℃条件下依次加入1～3g羧甲基纤维素钠、2～4g纳米有机膨润土和0.2～0.4g四硼酸钠，搅拌混合1～2h后出料，即可得到标签胶。
实例1
称取200g黑水虻蛹，用去离子水清洗表面后加入榨汁机中榨汁，分别收集得蛹汁和残渣，将残渣放入太阳下暴晒3天后粉碎，过60目筛后得粉末，将粉末按质量比1:5与去离子水混合，加入粉末质量8%尿素，搅拌反应2h，反应后加入2g氧化锌，搅拌混合30min，得混合物，备用；称取60g玉米淀粉，按质量比1:5与去离子水混合，置于匀浆机中，在300r/min条件下搅拌混合20min后加入3g次氯酸钠和5g硫酸亚铁，加入后搅拌反应1h，反应结束后得氧化淀粉液，按质量比3:1将氧化淀粉液和上述蛹汁混合，得混合液；在500mL的三口烧瓶中加入15g丙烯酸、8g丙烯酸丁酯、5g醋酸乙烯酯、3g聚乙二醇辛基苯基醚、80mL去离子水和15g上述混合液，放入水浴中，在50℃温度下搅拌乳化20min，乳化后加入0.3g过硫酸铵，搅拌反应3h后冷却至室温出料，得反应物；将备用的混合物与上述反应物按质量比1:8混合后放入反应釜中，在45℃条件下依次加入1g羧甲基纤维素钠、2g纳米有机膨润土和0.2g四硼酸钠，搅拌混合1h后出料，即可得到标签胶。
将本发明制备的标签胶按15g/m2均匀涂覆于PET膜标签基材上，将覆标签胶的标签基材粘贴在预先洗净干燥的玻璃瓶上，并按压平整后放入室温下自然干燥即可，标签胶的粘结强度为150N，抗水时间为10h，使用3年没有出现脱落、发脆现象。
实例2
称取250g黑水虻蛹，用去离子水清洗表面后加入榨汁机中榨汁，分别收集得蛹汁和残渣，将残渣放入太阳下暴晒4天后粉碎，过70目筛后得粉末，将粉末按质量比1:5与去离子水混合，加入粉末质量9%尿素，搅拌反应2.5h，反应后加入3g氧化锌，搅拌混合40min，得混合物，备用；称取70g玉米淀粉，按质量比1:5与去离子水混合，置于匀浆机中，在400r/min条件下搅拌混合25min后加入4g次氯酸钠和6g硫酸亚铁，加入后搅拌反应1.5h，反应结束后得氧化淀粉液，按质量比3:1将氧化淀粉液和上述蛹汁混合，得混合液；在500mL的三口烧瓶中加入17g丙烯酸、9g丙烯酸丁酯、6g醋酸乙烯酯、4g聚乙二醇辛基苯基醚、100mL去离子水和17g上述混合液，放入水浴中，在55℃温度下搅拌乳化25min，乳化后加入0.4g过硫酸铵，搅拌反应4h后冷却至室温出料，得反应物；将备用的混合物与上述反应物按质量比1:8混合后放入反应釜中，在50℃条件下依次加入2g羧甲基纤维素钠、3g纳米有机膨润土和0.3g四硼酸钠，搅拌混合1.5h后出料，即可得到标签胶。
将本发明制备的标签胶按17g/m2均匀涂覆于PET膜标签基材上，将覆标签胶的标签基材粘贴在预先洗净干燥的玻璃瓶上，并按压平整后放入室温下自然干燥即可，标签胶的粘结强度为175N，抗水时间为13h，使用3.5年没有出现脱落、发脆现象。
实例3
称取300g黑水虻蛹，用去离子水清洗表面后加入榨汁机中榨汁，分别收集得蛹汁和残渣，将残渣放入太阳下暴晒5天后粉碎，过80目筛后得粉末，将粉末按质量比1:5与去离子水混合，加入粉末质量8～10%尿素，搅拌反应3h，反应后加入4g氧化锌，搅拌混合50min，得混合物，备用；称取80g玉米淀粉，按质量比1:5与去离子水混合，置于匀浆机中，在500r/min条件下搅拌混合30min后加入5g次氯酸钠和5～7g硫酸亚铁，加入后搅拌反应2h，反应结束后得氧化淀粉液，按质量比3:1将氧化淀粉液和上述蛹汁混合，得混合液；在500mL的三口烧瓶中加入20g丙烯酸、10g丙烯酸丁酯、8g醋酸乙烯酯、5g聚乙二醇辛基苯基醚、120mL去离子水和20g上述混合液，放入水浴中，在60℃温度下搅拌乳化30min，乳化后加入0.5g过硫酸铵，搅拌反应5h后冷却至室温出料，得反应物；将备用的混合物与上述反应物按质量比1:8混合后放入反应釜中，在55℃条件下依次加入3g羧甲基纤维素钠、4g纳米有机膨润土和0.4g四硼酸钠，搅拌混合2h后出料，即可得到标签胶。
将本发明制备的标签胶按20g/m2均匀涂覆于PET膜标签基材上，将覆标签胶的标签基材粘贴在预先洗净干燥的玻璃瓶上，并按压平整后放入室温下自然干燥即可，标签胶的粘结强度为200N，抗水时间为15h，使用4年没有出现脱落、发脆现象。
Claims (1)
1.一种利用黑水虻蛹制备标签胶的方法，其特征在于具体制备步骤为：
(1)称取200～300g黑水虻蛹，用去离子水清洗表面后加入榨汁机中榨汁，分别收集得蛹汁和残渣，将残渣放入太阳下暴晒3～5天后粉碎，过60～80目筛后得粉末，将粉末按质量比1:5与去离子水混合后加入粉末质量8～10%尿素，搅拌反应2～3h，反应后加入2～4g氧化锌，搅拌混合30～50min，得混合物，备用；
(2)称取60～80g玉米淀粉，按质量比1:5与去离子水混合，置于匀浆机中，在300～500r/min条件下搅拌混合20～30min后加入3～5g次氯酸钠和5～7g硫酸亚铁，加入后搅拌反应1～2h，反应结束后得氧化淀粉液，按质量比3:1将氧化淀粉液和上述蛹汁混合，得混合液；
(3)在500mL的三口烧瓶中加入15～20g丙烯酸、8～10g丙烯酸丁酯、5～8g醋酸乙烯酯、3～5g聚乙二醇辛基苯基醚、80～120mL去离子水和15～20g上述混合液，放入水浴中，在50～60℃温度下搅拌乳化20～30min，乳化后加入0.3～0.5g过硫酸铵，搅拌反应3～5h后冷却至室温出料，得反应物；
(4)将步骤（1）备用的混合物与上述反应物按质量比1:8混合后放入反应釜中，在45～55℃条件下依次加入1～3g羧甲基纤维素钠、2～4g纳米有机膨润土和0.2～0.4g四硼酸钠，搅拌混合1～2h后出料，即可得到标签胶。
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