CN106368052A - 一种造纸技术中的多层涂布渗透方法 - Google Patents

一种造纸技术中的多层涂布渗透方法 Download PDF

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CN106368052A
CN106368052A CN201610775414.0A CN201610775414A CN106368052A CN 106368052 A CN106368052 A CN 106368052A CN 201610775414 A CN201610775414 A CN 201610775414A CN 106368052 A CN106368052 A CN 106368052A
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王壮鹏
蔡建涛
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Guangdong Songyang Renewable Resource Co Ltd
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Abstract

一种造纸技术中的多层涂布渗透方法,其特征在于:该渗透涂布方法包括以下步骤:(1)按下述的组分和含量备料:接枝改性膨润土、煅烧高岭土、石膏、粘结剂、胶乳、表面活性剂、抗紫外剂、去离子水,将改性膨润土、烧高岭土、石膏、粘结剂、胶乳、表面活性剂、抗紫外剂加入去离子水中,搅拌混合均匀,采用涂布刮刀往原纸上涂布所述造纸涂料,形成涂布层。

Description

一种造纸技术中的多层涂布渗透方法
技术领域
本发明属于造纸技术领域,特别涉及一种造纸技术中的多层涂布渗透方法。
背景技术
涂布纸是在原纸表面涂布以颜料为主要成分的涂料后进行干燥而形成的。随着社会经济和科学技术的快速发展,对纸的应用要求日益严格,作为包装用纸,涂布板的需求量越来越大。随着涂布板质量品质的不断提高。对造纸涂料的应用提出了更高的要求。
纸板光泽度表示纸板光泽的质量。纸板的光泽与印刷有很大关系。高光泽的纸板能使印刷品的色彩光亮,漂亮的多色印刷效果可以大大地提高纸盒包装产品的展示效果。平滑度表示涂布表面的平滑程度和光滑程度。涂布白纸板的涂布层就是为了提高纸板表面的平滑度,因为涂布能得到比不涂布的纸板在压光机上怎样加强压光也得不到的平滑度。印刷效果在很大程度上取决于纸板表面的平滑度。用表面不平的纸板印出的图文,清晰度就要受到影响。这是因为平滑度与油墨的转移有一定的关系,平滑度决定了纸板与印版接触的紧密程度。
在造纸涂布工艺中,流变性能是涂料的关键性能。要求涂料在流送过程中,受高剪切力作用,粘度低;涂布到纸张表面后,剪切力消除,涂料的流展性能好,涂层平整。还要求涂料具有良好的保水度。涂布改善纸张的表面性能,主要是提高纸张的平滑度、光泽度、印刷性能,以及涂层表面强度。
造纸涂料的性质直接影响着涂布纸的各种性能。现有的涂布纸大多数印刷适应性差,主要原因是涂布层质量不佳,以及后整饰工艺不完善。因此通过提高造纸涂料配方提高涂层质量是最好的途径。
发明内容
为了解决上述问题,本发明发明了一种造纸技术中的多层涂布渗透方法,能够保证涂布纸具有高光泽、高平滑度。
本发明的目的是通过以下技术方案实现的:一种造纸技术中的多层涂布渗透方法,其特征在于:该渗透涂布方法包括以下步骤:
(1)按下述的组分和含量备料:
接枝改性膨润土 2~8wt%
煅烧高岭土 1~5wt%
石膏 1~5wt%
粘结剂 2~6wt%
胶乳 0.5~10wt%
表面活性剂 0.2~2.5wt%
抗紫外剂 1.2~7.4wt%
去离子水 余量,其总和为100%,
其中,胶粘剂为聚乙烯醇、乙酸乙烯-乙烯共聚物、水性聚氨酯、苯乙烯-丙烯酸酯共聚乳液和丙烯酸酯乳液中的一种或几种;表面活性剂为OP—10、十六烷基三甲基溴化胺、十六烷基三甲基氯化胺和十二烷基苯磺酸钠中的一种或几种;抗紫外剂为UV—9和UV—531中的一种或两种,作为胶粘剂的聚乙烯醇的数均分子量为1500~2400。
(2)将改性膨润土、烧高岭土、石膏、粘结剂、胶乳、表面活性剂 、抗紫外剂加入去离子水中,搅拌混合均匀,采用涂布刮刀往原纸上涂布所述造纸涂料,形成涂布层。
石膏为超细石膏,超细石膏是指其中粒径小于2um的石膏颗粒的含量大于60%,所述接枝改性膨润土由以下方法制备而成:将膨润土用水配成分散液,搅拌打浆;使分散液的质量百分比浓度为1-10%,加入接枝助剂,接枝助剂的用量为膨润土质量的2-20%,分散均匀;再加入引发剂,引发聚合;然后烘干干燥。
所述的接枝助剂为丙烯酰胺、丙烯酰氧乙基三甲基氯化铵、二甲基二烯丙基氯化铵、甲基丙烯酰氧乙基二甲基苄基氯化铵、甲基丙烯酰氧乙基三甲基氯化铵中的一种或它们的组合,所述的引发剂为过硫酸铵和亚硫酸氢钠。
所述的搅拌混合是在10-30℃条件下,以300转/分钟以上的搅拌速度进行搅拌,在所述的搅拌混合之后,再用目数为200-300目的纱芯滤网将混合料液过滤一到两遍。
具体实施方式
下面结合实施例对本发明进行进一步说明。
实施例1
一种假发,由基体、第1粘附层、底网、隔离层、发网、第2粘附层栽植在该基体中的发材,上述基体由极薄且由弹性 材料制成,上述第1粘附层由粘附力比较强并且凝胶化的程度比较大的性质的粘附剂构成;上述第2粘附层由粘附力比较弱并且凝胶化的程度比较小的性质的粘附剂构成;上述隔离层由与上述基体相同的薄膜状原材料构成;将上述第1粘附层和上述第2粘附层经由上述隔离层相邻设置;将上述基体、上述第1粘附层、隔离层、第2粘附层及上述第1剥离层依次层叠而形成为实质上2维形状的多层构造体,所述具有弹力的发网固定在底网上,所述假发发丝穿过具有弹力的发网通过第一粘附层将发结编制在底网上。
所述基体包括由人工皮肤构成且将其前缘配置在戴假发者的前额部的前部、以及与所述前部接合并由帽式部件构成的后部,所述帽式部件具有与戴假发者的头部形状类似的形状;所述前部具有人工皮肤材料和粘接层,该粘接层具有下述功能:以不能剥离的方式粘接在所述人工皮肤材料的背面上来固定毛发的针脚部,且以能够反复粘接和剥离的方式加压 粘接在头皮上。
所述假发发丝包括短发和长发;所述短发和长发按照预先设定的规定的毛发量植设在假发基体上,同时将该短发和长发分别控制在预先设定的规定的比例来进行植设。
所述假发基体 通过由软质合成树脂形成的人造皮肤构成,所述假发基体 的整体或至少一部分由网状部件构成,将所述短发 控制在植设于所述假发基体上的毛发量的20~50%的比例来进行植设,所述 短发的各自长度为所述长发的二分之一以下,且在1~5cm的范围内不 均匀地植设。
述粘接层由聚氨酯 凝胶构成所述聚氨酯凝胶由包括主 剂和固化剂的双组分混合型的聚氨酯树脂系压敏型粘接剂构成,所述主剂 是以聚氨酯树脂为主要成分的多元醇,所述固化剂以聚异氰酸酯为主要成分。
述假发的假发生产工艺,包括以下步骤:
A、首先把具有弹力的发网固定到假发底网上,使具有弹力的发网波浪面与假发底网接触;
B、把假发发丝利用第一层的发网的弹力与缝隙,用假发编织工艺 反半扣法用钩针把发丝勾到底网上使其钩织所产生的发结,完全隐蔽在 第一层网下面。
本发明假发纤维纺制的极限氧指数(LOI)≥28,具有阻燃性能,从而解决了假发易于燃烧的问题,避免发生假发燃烧的意外事件。本发明假发纤维纺制的手感好、梳理性能佳、光泽度均匀,仿真效果好。本发明的PET和PBT混合比例适当,产品性价比高。
应当理解,虽然本说明书按照实施方式加以描述,但并非每个实施方式仅包含一个独立的技术方案,说明书的这种叙述方式仅仅是为清楚起见,本领域技术人员应当将说明书作为一个整体,各实施例中的技术方案也可以经适当组合,形成本领域技术人员可以理解的其他实施方式。

Claims (4)

1.一种造纸技术中的多层涂布渗透方法,其特征在于:该渗透涂布方法包括以下步骤:
(1)按下述的组分和含量备料:
接枝改性膨润土 2~8wt%
煅烧高岭土 1~5wt%
石膏 1~5wt%
粘结剂 2~6wt%
胶乳 0.5~10wt%
表面活性剂 0.2~2.5wt%
抗紫外剂 1.2~7.4wt%
去离子水 余量,其总和为100%,
其中,胶粘剂为聚乙烯醇、乙酸乙烯-乙烯共聚物、水性聚氨酯、苯乙烯-丙烯酸酯共聚乳液和丙烯酸酯乳液中的一种或几种;表面活性剂为OP—10、十六烷基三甲基溴化胺、十六烷基三甲基氯化胺和十二烷基苯磺酸钠中的一种或几种;抗紫外剂为UV—9和UV—531中的一种或两种,作为胶粘剂的聚乙烯醇的数均分子量为1500~2400
(2)将改性膨润土、烧高岭土、石膏、粘结剂、胶乳、表面活性剂 、抗紫外剂加入去离子水中,搅拌混合均匀,采用涂布刮刀往原纸上涂布所述造纸涂料,形成涂布层。
2.根据权利要求1所述造纸技术中的多层涂布渗透方法,其特征在于:石膏为超细石膏,超细石膏是指其中粒径小于2um的石膏颗粒的含量大于60%,所述接枝改性膨润土由以下方法制备而成:将膨润土用水配成分散液,搅拌打浆;使分散液的质量百分比浓度为1-10%,加入接枝助剂,接枝助剂的用量为膨润土质量的2-20%,分散均匀;再加入引发剂,引发聚合;然后烘干干燥。
3.根据权利要求2所述造纸技术中的多层涂布渗透方法,其特征在于:所述的接枝助剂为丙烯酰胺、丙烯酰氧乙基三甲基氯化铵、二甲基二烯丙基氯化铵、甲基丙烯酰氧乙基二甲基苄基氯化铵、甲基丙烯酰氧乙基三甲基氯化铵中的一种或它们的组合,所述的引发剂为过硫酸铵和亚硫酸氢钠。
4.根据权利要求1所述造纸技术中的多层涂布渗透方法,其特征在于:所述的搅拌混合是在10-30℃条件下,以300转/分钟以上的搅拌速度进行搅拌,在所述的搅拌混合之后,再用目数为200-300目的纱芯滤网将混合料液过滤一到两遍。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1072227A (zh) * 1991-11-10 1993-05-19 李正华 涂布纸的涂布组合物
JP2005238725A (ja) * 2004-02-27 2005-09-08 Oji Paper Co Ltd 感熱記録体
CN101029462A (zh) * 2007-02-07 2007-09-05 北京圣彩虹制版印刷技术有限公司 喷墨打印材料的渗透涂布方法
CN104195882A (zh) * 2014-08-06 2014-12-10 阳原县仁恒精细粘土有限责任公司 一种用于涂布纸的造纸涂料及涂布纸的生产工艺

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1072227A (zh) * 1991-11-10 1993-05-19 李正华 涂布纸的涂布组合物
JP2005238725A (ja) * 2004-02-27 2005-09-08 Oji Paper Co Ltd 感熱記録体
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