CN110438836A - 提高纸张强度的造纸工艺 - Google Patents

提高纸张强度的造纸工艺 Download PDF

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CN110438836A
CN110438836A CN201910780351.1A CN201910780351A CN110438836A CN 110438836 A CN110438836 A CN 110438836A CN 201910780351 A CN201910780351 A CN 201910780351A CN 110438836 A CN110438836 A CN 110438836A
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吴丹
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ZHEJIANG RONGSHENG PAPER INDUSTRY HOLDING Co Ltd
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Abstract

本发明公布了丝网类产品造纸技术领域的提高纸张强度的造纸工艺，A：对浆料用精浆机进行精浆，获得浆液，其中，浆料为植物纤维；B：在精浆后的浆液中加入化学助剂、填料、辅料和GPAM与含胺聚合物混合物进行配浆，得到纸浆；C：在浆料上网抄造之前，在加入羧甲基羟丙基纤维素之后加入湿强剂，并与羧甲基羟丙基纤维素混合均匀，然后将配浆后得到的纸浆送到造纸机进行上网抄造，然后将抄造后得到的湿纸进行干燥，得到初步成纸；D：对初步成纸进行表面施胶。E：对表面施胶后的初步成纸进行再次干燥，得到最终成纸，制备方法工艺简单，产品具有提高纸张强度和韧性，改善印刷适性，并且纸页良好的光学性能和稳定的化学性能的效果。

Description

提高纸张强度的造纸工艺
技术领域
本发明涉及丝网类产品造纸技术领域，具体为提高纸张强度的造纸工艺。
背景技术
纸张的生产是一个复杂的过程，提高纸张的强度、改善纸张匀度、提高纤维留着、改善浆料脱水等许多特性常通过在纸浆中添加助剂来获得的，但由于助剂的添加往往会导致在取得性能提升的同时与生产实际产生矛盾，，在目前的造纸工艺中，通过在浆料中添加CMC(羧甲基纤维素)可以改善纤维的内部键合力、均匀分散纤维以达到更好的成型，从而提高纸质的物理强度，CMC还可以作为一种分散剂，将与其配伍使用的填料微粒和细小纤维充分分散开，使整个浆料形成一个稳定均一的体系，但该CMC添加剂对纸浆的助留助滤特性有待进一步提高，并且生产的纸张强度较低，因此我们提出提高纸张强度的造纸工艺。
发明内容
本发明的目的在于提供提高纸张强度的造纸工艺，以解决上述背景技术中提出的问题。
为实现上述目的，本发明提供如下技术方案：提高纸张强度的造纸工艺，该造纸工艺中的液体试剂种类为：
该造纸工艺中的液体试剂种类为：
化学助剂；
填料；
辅料；
湿强剂；
GPAM与含胺聚合物混合物；
烷基烯酮二聚体26-28％；
液态烷基硫酸钠56-58％；
硬脂酸锌5％；
脂肪酸酰胺5％；
聚乙烯蜡液体石蜡3％；
高分子分散剂2％；
杀菌剂1％。
该造纸工艺方法的具体步骤为：
A：对浆料用精浆机进行精浆，获得浆液，其中，浆料为植物纤维，比如棉纤维、木纤维、草纤维、麻纤维、皮纤维、动物纤维、化学纤维中的一种或几种的混合；
B：在精浆后的浆液中加入化学助剂、填料、辅料和GPAM与含胺聚合物混合物进行配浆，得到纸浆；
C：在浆料上网抄造之前，在加入羧甲基羟丙基纤维素之后加入湿强剂，并与羧甲基羟丙基纤维素混合均匀，然后将配浆后得到的纸浆送到造纸机进行上网抄造，然后将抄造后得到的湿纸进行干燥，得到初步成纸；
D：对初步成纸进行表面施胶，施胶剂的原料按重量配比包括：烷基烯酮二聚体26-28％、液态烷基硫酸钠56-58％、硬脂酸锌5％、脂肪酸酰胺5％、聚乙烯蜡液体石蜡3％、高分子分散剂2％、杀菌剂1％，并且施胶剂的制作步骤为：
(1)将配方量的液态烷基硫酸钠送入化学反应釜，边搅拌边将配方量的烷基烯酮二聚体送入化学反应釜，边搅拌边升温至45-55℃，反应0.5-0.6小时；
(2)降温至常温，同时加入配方量的硬脂酸锌、脂肪酸酰胺、聚乙烯蜡液体石蜡、高分子分散剂、杀菌剂，搅拌均匀，即得成品；
E：对表面施胶后的初步成纸进行再次干燥，得到最终成纸。
优选的，化学助剂里含有羧甲基羟丙基纤维素，该羧甲基羟丙基纤维素的取代度DS≥0.9、取代度MS≥0.10、黏度≥1000mPa.s，且该羧甲基羟丙基纤维素占纸浆绝干量的质量比为0.01～2％，羧甲基羟丙基纤维素是一种性质类似CMC的助剂，这种化学助剂主要通过引入羟丙基基团，使羧甲基羟丙基纤维素包含有羧甲基和羟丙基，通过在羧甲基纤维素分子链上引入非离子性极性基团达到进一步促进纤维分散从而改善助留助滤和提高纸张强度的目的。
优选的，填料为钛白粉、高岭土或类似物。
优选的，辅料为阴离子捕捉剂、消泡剂、抗菌剂或类似物。
优选的，湿强剂为脲醛树脂、三聚氰胺-甲醛树脂、聚酰胺多胺环氧氯丙烷树脂、聚酰胺表氯醇树脂、聚羧酸和壳聚糖的一种。
与现有技术相比，本发明的有益效果是：
该发明中的羧甲基羟丙基纤维素是一种性质类似CMC的助剂，这种化学助剂主要通过引入羟丙基基团，使羧甲基羟丙基纤维素包含有羧甲基和羟丙基，通过在羧甲基纤维素分子链上引入非离子性极性基团达到进一步促进纤维分散从而改善助留助滤和提高纸张强度的目的，同时GPAM与含胺聚合物可交联以产生更高分子量的分子，GPAM与含胺聚合物组合提高排水留着率和强度，所以其与更少量的填料增强化学物质一起使用可用于获得具有高强度和填料含量的纸等级，同时该发明包括精浆、配浆、抄造、干燥、施胶、加工步骤，制备方法工艺简单，产品具有提高纸张强度和韧性，改善印刷适性，并且纸页良好的光学性能和稳定的化学性能的效果。
具体实施方式
下面将结合本发明实施例，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
实施例1
提高纸张强度的造纸工艺，该造纸工艺方法包括如下步骤：
A：对浆料用精浆机进行精浆，获得浆液，其中，浆料为棉纤维、木纤维、草纤维和麻纤维混合的植物纤维；
B：在精浆后的浆液中加入化学助剂、填料、辅料和GPAM与含胺聚合物混合物进行配浆，得到纸浆；
C：在浆料上网抄造之前，在加入羧甲基羟丙基纤维素之后加入湿强剂，并与羧甲基羟丙基纤维素混合均匀，然后将配浆后得到的纸浆送到造纸机进行上网抄造，然后将抄造后得到的湿纸进行干燥，得到初步成纸；
D：对初步成纸进行表面施胶，施胶剂的原料按重量配比包括：烷基烯酮二聚体27％、液态烷基硫酸钠57％、硬脂酸锌5％、脂肪酸酰胺5％、聚乙烯蜡液体石蜡3％、高分子分散剂2％、杀菌剂1％，并且施胶剂的制作步骤为：
(1)将配方量的液态烷基硫酸钠送入化学反应釜，边搅拌边将配方量的烷基烯酮二聚体送入化学反应釜，边搅拌边升温至45℃，反应0.6个小时；
(2)降温至常温，同时加入配方量的硬脂酸锌、脂肪酸酰胺、聚乙烯蜡液体石蜡、高分子分散剂、杀菌剂，搅拌均匀，即得成品；
E：对表面施胶后的初步成纸进行再次干燥，得到最终成纸。
实施例2
提高纸张强度的造纸工艺，该造纸工艺方法包括如下步骤：
A：对浆料用精浆机进行精浆，获得浆液，其中，浆料为棉纤维、木纤维、草纤维和麻纤维混合的植物纤维；
B：在精浆后的浆液中加入化学助剂、填料、辅料和GPAM与含胺聚合物混合物进行配浆，得到纸浆；
C：在浆料上网抄造之前，在加入羧甲基羟丙基纤维素之后加入湿强剂，并与羧甲基羟丙基纤维素混合均匀，然后将配浆后得到的纸浆送到造纸机进行上网抄造，然后将抄造后得到的湿纸进行干燥，得到初步成纸；
D：对初步成纸进行表面施胶，施胶剂的原料按重量配比包括：烷基烯酮二聚体26％、液态烷基硫酸钠58％、硬脂酸锌5％、脂肪酸酰胺5％、聚乙烯蜡液体石蜡3％、高分子分散剂2％、杀菌剂1％，并且施胶剂的制作步骤为：
(1)将配方量的液态烷基硫酸钠送入化学反应釜，边搅拌边将配方量的烷基烯酮二聚体送入化学反应釜，边搅拌边升温至55℃，反应0.5小时；
(2)降温至常温，同时加入配方量的硬脂酸锌、脂肪酸酰胺、聚乙烯蜡液体石蜡、高分子分散剂、杀菌剂，搅拌均匀，即得成品；
E：对表面施胶后的初步成纸进行再次干燥，得到最终成纸。
尽管已经示出和描述了本发明的实施例，对于本领域的普通技术人员而言，可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型，本发明的范围由所附权利要求及其等同物限定。

Claims (6)

1.提高纸张强度的造纸工艺，其特征在于：该造纸工艺中的液体试剂种类为：
化学助剂；
填料；
辅料；
湿强剂；
GPAM与含胺聚合物混合物；
烷基烯酮二聚体26-28％；
液态烷基硫酸钠56-58％；
硬脂酸锌5％；
脂肪酸酰胺5％；
聚乙烯蜡液体石蜡3％；
高分子分散剂2％；
杀菌剂1％。
2.根据权利要求1所述的提高纸张强度的造纸工艺，其特征在于：该种造纸工艺方法的具体步骤为：
A：对浆料用精浆机进行精浆，获得浆液，其中，浆料为植物纤维，比如棉纤维、木纤维、草纤维、麻纤维、皮纤维、动物纤维、化学纤维中的一种或几种的混合；
B：在精浆后的浆液中加入化学助剂、填料、辅料和GPAM与含胺聚合物混合物进行配浆，得到纸浆；
C：在浆料上网抄造之前，在加入羧甲基羟丙基纤维素之后加入湿强剂，并与羧甲基羟丙基纤维素混合均匀，然后将配浆后得到的纸浆送到造纸机进行上网抄造，然后将抄造后得到的湿纸进行干燥，得到初步成纸；
D：对初步成纸进行表面施胶，施胶剂的原料按重量配比包括：烷基烯酮二聚体26-28％、液态烷基硫酸钠56-58％、硬脂酸锌5％、脂肪酸酰胺5％、聚乙烯蜡液体石蜡3％、高分子分散剂2％、杀菌剂1％，并且施胶剂的制作步骤为：
(1)将配方量的液态烷基硫酸钠送入化学反应釜，边搅拌边将配方量的烷基烯酮二聚体送入化学反应釜，边搅拌边升温至45-55℃，反应0.5-0.6小时；
(2)降温至常温，同时加入配方量的硬脂酸锌、脂肪酸酰胺、聚乙烯蜡液体石蜡、高分子分散剂、杀菌剂，搅拌均匀，即得成品；
E：对表面施胶后的初步成纸进行再次干燥，得到最终成纸。
3.根据权利要求2所述的提高纸张强度的造纸工艺，其特征在于：化学助剂里含有羧甲基羟丙基纤维素，该羧甲基羟丙基纤维素的取代度DS≥0.9、取代度MS≥0.10、黏度≥1000mPa.s，且该羧甲基羟丙基纤维素占纸浆绝干量的质量比为0.01～2％，羧甲基羟丙基纤维素是一种性质类似CMC的助剂，这种化学助剂主要通过引入羟丙基基团，使羧甲基羟丙基纤维素包含有羧甲基和羟丙基，通过在羧甲基纤维素分子链上引入非离子性极性基团达到进一步促进纤维分散从而改善助留助滤和提高纸张强度的目的。
4.根据权利要求2所述的提高纸张强度的造纸工艺，其特征在于：填料为钛白粉、高岭土或类似物。
5.根据权利要求2所述的提高纸张强度的造纸工艺，其特征在于：辅料为阴离子捕捉剂、消泡剂、抗菌剂或类似物。
6.根据权利要求2所述的提高纸张强度的造纸工艺，其特征在于：湿强剂至少为脲醛树脂、三聚氰胺-甲醛树脂、聚酰胺多胺环氧氯丙烷树脂、聚酰胺表氯醇树脂、聚羧酸和壳聚糖的一种。
CN201910780351.1A 2019-08-22 2019-08-22 提高纸张强度的造纸工艺 Pending CN110438836A (zh)

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CN102373649A (zh) * 2010-08-23 2012-03-14 昆山钞票纸业有限公司 纸的生产工艺及其产品
CN106795695A (zh) * 2014-10-06 2017-05-31 艺康美国股份有限公司 通过在含有淀粉的施胶压榨制剂中使用二烯丙基胺丙烯酰胺共聚物来提高纸块体强度的方法
CN107109796A (zh) * 2014-10-06 2017-08-29 艺康美国股份有限公司 提高纸强度的方法
CN109112885A (zh) * 2017-06-26 2019-01-01 江苏锡沂高新区科技发展有限公司 一种造纸用合成施胶剂

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102373649A (zh) * 2010-08-23 2012-03-14 昆山钞票纸业有限公司 纸的生产工艺及其产品
CN106795695A (zh) * 2014-10-06 2017-05-31 艺康美国股份有限公司 通过在含有淀粉的施胶压榨制剂中使用二烯丙基胺丙烯酰胺共聚物来提高纸块体强度的方法
CN107109796A (zh) * 2014-10-06 2017-08-29 艺康美国股份有限公司 提高纸强度的方法
CN109112885A (zh) * 2017-06-26 2019-01-01 江苏锡沂高新区科技发展有限公司 一种造纸用合成施胶剂

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Application publication date: 20191112