CN106868925A - 一种高强高填料纸张及其制备方法 - Google Patents

一种高强高填料纸张及其制备方法 Download PDF

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CN106868925A
CN106868925A CN201611263674.6A CN201611263674A CN106868925A CN 106868925 A CN106868925 A CN 106868925A CN 201611263674 A CN201611263674 A CN 201611263674A CN 106868925 A CN106868925 A CN 106868925A
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李先明
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Wuhu Habei Paper Co Ltd
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Abstract

本发明公开了一种高强高填料纸张，其原料按重量份包括：针叶木浆料20～30份，蔗渣浆料20～30份，复合填料40～60份，糖粉3～5份，助剂1～5份；其中复合填料包含填料组分、纤维组分和助留剂；本发明还公开了一种高强高填料纸张的制备方法。本发明将填料组分、纤维组分、助留剂配合使用作为浆料复合填料，并在湿纸表面通过糖溶液渗透形成纤维素‑糖复合物，增强了纸张的强度，降低了生产成本，制备方法简单，有利于产业化生产。

Description

一种高强高填料纸张及其制备方法
技术领域
本发明涉及纸张制备技术领域，尤其涉及一种高强高填料纸张及其制备方法。
背景技术
造纸工业在国民经济中占据很重要的地位，进入21世纪，我国造纸业将是一个持续、稳定发展的行业，但是我国是一个森林资源严重短缺的国家，目前，森林面积仅约1.75亿公顷，森林覆盖率大约只有18.2％。短期内，我国不可能向造纸工业提供足够的林产资源用于制浆造纸。随着我国经济的高速发展和环保节能意识的增强，通常采用二次纤维、造纸填料等来代替木材纤维进行造纸，而其中造纸填料更是广泛地使用。纸张加填不但在一定程度上提高了纸张的不透明度、白度和印刷适性等成纸性能，而且纤维的价格普遍较高，填料的价格较便宜。
高填料纸因加入过高的填料含量也带来了一些无法避免的缺陷，如由于加入过高的填料，使纤维间和纤维与填料间的结合力降低，导致纸张强度性能下降，因此，研制一种高强度、高填料纸有利于纸张制造业的可持续发展。
发明内容
本发明提出了高强高填料纸张及其制备方法，将填料组分、纤维组分、助留剂配合使用作为浆料复合填料，并在湿纸表面通过糖溶液渗透形成纤维素-糖复合物，增强了纸张的强度，降低了生产成本，制备方法简单，有利于产业化生产。
本发明提出的一种高强高填料纸张，其原料按重量份包括：针叶木浆料20～30份，蔗渣浆料20～30份，复合填料40～60份，糖粉3～5份，助剂1～5份；其中复合填料包含填料组分、纤维组分和助留剂。
优选地，针叶木浆料的打浆度为30～35°SR，蔗渣浆料的打浆度为32～35°SR。
优选地，针叶木浆料的打浆度为32°SR，蔗渣浆料的打浆度为33°SR。
优选地，复合填料中填料组分为高岭土、碳酸钙或滑石粉。
优选地，复合调料为滑石粉。
优选地，复合填料中纤维组分为打浆浆料。
优选地，打浆浆料的打浆度为83～90°SR。
优选地，打浆浆料由废纸板制得。
优选地，助留剂为阳离子聚丙烯酰、膨润土、阳离子淀粉或胶体硅中一种或两种以上混合物。
优选地，助留剂为阳离子聚丙烯酰。
优选地，填料组分和纤维组分的重量比为1：1。
优选地，助留剂在复合填料中含量为0.4～0.8wt％。
优选地，针叶木浆料、蔗糖浆料总重量与复合填料的重量比为1：1。
优选地，糖粉为葡萄糖、果糖、蔗糖、乳糖、棉籽糖中的一种或两种以上混合物；优选地，糖粉为棉籽糖。
优选地，针叶木浆料25份，蔗渣浆料25份，复合填50份，糖粉4份，助剂3份。
本发明提出的一种高强高填料纸张的制备方法，包括如下步骤：
S1、将针叶木浆料、蔗渣浆料混合均匀，用100～200目的筛网过滤，加入复合填料及助剂得到纸浆；
S2、将糖粉加水配制成糖浓度为10-20wt％的糖溶液；
S3、将纸浆进行抄纸，湿纸幅成形后，将孔径2.0×1.0的网放置湿纸幅上，然后把栅板正面朝下放在网上，将糖溶液均匀分布在光栅孔中，使溶液透过栅板渗透到栅板下的湿纸幅纤维上，去除残存糖溶液，干燥得到高强高填料纸张。
本发明采用填料组分、纤维组分、助留剂配合使用作为浆料复合填料，利用高打浆度的浆料代替细小纤维与填料滑石粉，大幅度提高纸张光学性能，同时，配合使用阳离子聚丙烯酰作为助留剂，阳离子聚丙烯酰与负电荷的纤维和填料形成絮聚，在一定剪切力的作用下，絮聚体被裂解成大量小碎块，阴离子膨润土将细小碎块重新交联、桥联起来，形成较初始絮聚体尺寸更小、结构更致密的结构，从而提高其助留、助滤效果，显著提高了填料留着率和纸张的抗张强度；控制合理针叶木浆料和蔗渣浆料的打浆度与复合填料互配，增强了纤维之间的结合力，进一步提高纸张强度；湿纸表面通过糖溶液渗透，形成纤维素-糖复合物，一方面取代部分纸浆纤维，降低纸张的生产成本，另一方面棉籽糖有3个连续吡喃糖分子，作为中间连接体，在纸浆体系中形成紧密的纤维素-糖复合物，提高了纸纤维之间的结合力，从而提高率高填料纸张的抗张强度。
具体实施方式
下面，通过具体实施例对本发明的技术方案进行详细说明。
实施例1
一种高强高填料纸张，其原料按重量份包括：针叶木浆料20份，蔗渣浆料30份，复合填料40份，糖粉3份，助剂1份；其中复合填料包含填料组分、纤维组分和助留剂。
实施例2
一种高强高填料纸张，其原料按重量份包括：针叶木浆料30份，蔗渣浆料20份，复合填料40份，葡萄糖5份，助剂5份；其中复合填料包含高岭土、打浆浆料和阳离子聚丙烯酰。
实施例3
一种高强高填料纸张，其原料按重量份包括：针叶木浆料25份，蔗渣浆料25份，复合填料60份，果糖2份、蔗糖2份，助剂3份；其中，针叶木浆料的打浆度为30°SR，蔗渣浆料的打浆度为32°SR，复合填料包含碳酸钙、打浆度为83°SR的浆料、阳离子聚丙烯酰和膨润土；碳酸钙和打浆度为83°SR的浆料的重量比为1：1，阳离子聚丙烯酰和膨润土在复合填料中的总含量为0.4wt％。
实施例4
一种高强高填料纸张，其原料按重量份包括：针叶木浆料20份，蔗渣浆料30份，复合填料50份，果糖2份，蔗糖2份，乳糖1份，助剂3份；其中，针叶木浆料的打浆度为35°SR，蔗渣浆料的打浆度为35°SR，复合填料包含滑石粉、打浆度为90°SR的废纸板浆料、阳离子聚丙烯酰、膨润土和阳离子淀粉；滑石粉和打浆度为90°SR的废纸浆料的重量比为1：1，阳离子聚丙烯酰、膨润土和阳离子淀粉在复合填料中的总含量为0.8wt％。
高强高填料纸张由如下方法制得：
S1、将针叶木浆料、蔗渣浆料混合均匀，用100目的筛网过滤，加入复合填料及助剂得到纸浆；
S2、将糖粉加水配制成糖浓度为10wt％的糖溶液；
S3、将纸浆进行抄纸，湿纸幅成形后，将孔径2.0×1.0的网放置湿纸幅上，然后把栅板正面朝下放在网上，将糖溶液均匀分布在光栅孔中，使溶液透过栅板渗透到栅板下的湿纸幅纤维上，去除残存糖溶液，干燥得到高强高填料纸张。
实施例5
一种高强高填料纸张，其原料按重量份包括：针叶木浆料30份，蔗渣浆料20份，复合填料50份，果糖2份，蔗糖1份，乳糖1份，棉籽糖1份，助剂3份；其中，针叶木浆料的打浆度为35°SR，蔗渣浆料的打浆度为35°SR，复合填料包含滑石粉、打浆度为90°SR的废纸板浆料、阳离子聚丙烯酰、膨润土、阳离子淀粉和胶体硅；滑石粉和打浆度为90°SR的废纸浆料的重量比为1：1，阳离子聚丙烯酰、膨润土、阳离子淀粉和胶体硅在复合填料中的总含量为0.8wt％。
高强高填料纸张由如下方法制得：
S1、将针叶木浆料、蔗渣浆料混合均匀，用200目的筛网过滤，加入复合填料及助剂得到纸浆；
S2、将糖粉加水配制成糖浓度为20wt％的糖溶液；
S3、将纸浆进行抄纸，湿纸幅成形后，将孔径2.0×1.0的网放置湿纸幅上，然后把栅板正面朝下放在网上，将糖溶液均匀分布在光栅孔中，使溶液透过栅板渗透到栅板下的湿纸幅纤维上，去除残存糖溶液，干燥得到高强高填料纸张。
实施例6
一种高强高填料纸张，其原料按重量份包括：针叶木浆料25份，蔗渣浆料25份，复合填料50份，棉籽糖4份，助剂3份；其中，针叶木浆料的打浆度为32°SR，蔗渣浆料的打浆度为33°SR，复合填料包含滑石粉、打浆度为85°SR的废纸板浆料、阳离子聚丙烯酰；滑石粉和打浆度为85°SR的废纸浆料的重量比为1：1，阳离子聚丙烯酰在复合填料中的总含量为0.6wt％。
高强高填料纸张由如下方法制得：
S1、将针叶木浆料、蔗渣浆料混合均匀，用150目的筛网过滤，加入复合填料及助剂得到纸浆；
S2、将糖粉加水配制成糖浓度为15wt％的糖溶液；
S3、将纸浆进行抄纸，湿纸幅成形后，将孔径2.0×1.0的网放置湿纸幅上，然后把栅板正面朝下放在网上，将糖溶液均匀分布在光栅孔中，使溶液透过栅板渗透到栅板下的湿纸幅纤维上，去除残存糖溶液，干燥得到高强高填料纸。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。

Claims (10)

1.一种高强高填料纸张，其特征在于，其原料按重量份包括：针叶木浆料20～30份，蔗渣浆料20～30份，复合填料40～60份，糖粉3～5份，助剂1～5份；其中复合填料包含填料组分、纤维组分和助留剂。
2.根据权利要求1所述的高强高填料纸张，其特征在于，针叶木浆料的打浆度为30～35°SR，蔗渣浆料的打浆度为32～35°SR；优选地，针叶木浆料的打浆度为32°SR，蔗渣浆料的打浆度为33°SR。
3.根据权利要求1所述的高强高填料纸张，其特征在于，复合填料中填料组分为高岭土、碳酸钙或滑石粉；优选地，复合调料为滑石粉。
4.根据权利要求1所述的高强高填料纸张，其特征在于，复合填料中纤维组分为打浆浆料；优选地，打浆浆料的打浆度为83～90°SR；优选地，打浆浆料由废纸板制得。
5.根据权利要求1所述的高强高填料纸张，其特征在于，助留剂为阳离子聚丙烯酰、膨润土、阳离子淀粉或胶体硅中一种或两种以上混合物；优选地，助留剂为阳离子聚丙烯酰。
6.根据权利要求1所述的高强高填料纸张，其特征在于，填料组分和纤维组分的重量比为1：1。
7.根据权利要求1所述的高强高填料纸张，其特征在于，助留剂在复合填料中含量为0.4～0.8wt％。
8.根据权利要求1所述的高强高填料纸张，其特征在于，针叶木浆料、蔗糖浆料总重量与复合填料的重量比为1：1。
9.根据权利要求1所述的高强高填料纸张，其特征在于，糖粉为葡萄糖、果糖、蔗糖、乳糖、棉籽糖中的一种或两种以上混合物；优选地，糖粉为棉籽糖。
10.一种根据权利要求1-9任一项所述的高强高填料纸张的制备方法，其特征在于，包括如下步骤：
S1、将针叶木浆料、蔗渣浆料混合均匀，用100～200目的筛网过滤，加入复合填料及助剂得到纸浆；
S2、将糖粉加水配制成糖浓度为10～20wt％的糖溶液；
S3、将纸浆进行抄纸，湿纸幅成形后，将孔径2.0×1.0的网放置湿纸幅上，然后把栅板正面朝下放在网上，将糖溶液均匀分布在光栅孔中，使溶液透过栅板渗透到栅板下的湿纸幅纤维上，去除残存糖溶液，干燥得到高强高填料纸张。
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