CN117328295A - 本纤防伪涂布烟卡纸及其生产工艺 - Google Patents

本纤防伪涂布烟卡纸及其生产工艺 Download PDF

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CN117328295A
CN117328295A CN202311105246.0A CN202311105246A CN117328295A CN 117328295 A CN117328295 A CN 117328295A CN 202311105246 A CN202311105246 A CN 202311105246A CN 117328295 A CN117328295 A CN 117328295A
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layer
counterfeiting
coating
fiber
pulp
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仇如全
刘卫华
李涛
杜兆锋
刘雪娇
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Shandong Bohui Paper Ind Co ltd
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Shandong Bohui Paper Ind Co ltd
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
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    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/10—Packing paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
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    • D21F11/02—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type
    • D21F11/04—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the Fourdrinier type paper or board consisting on two or more layers
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    • D21F11/06—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type
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    • D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
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Abstract

本发明属于造纸技术领域，具体涉及本纤防伪涂布烟卡纸及其生产工艺。本发明所述的本纤防伪涂布烟卡纸，包括原纸层、涂布层、背胶层，所述原纸包括面层、芯层和底层，所述面层防伪本色纤维占比4‑6％，所述芯层防伪本色纤维占比1‑3％，所述底层防伪本色纤维占比6‑9％；所述涂布层涂盖于面层之上，分为预涂、中涂、面涂三层；所述背胶层涂盖于底层。本发明通过三层不同比例的本色纤维添加，在成纸平面上分布形成独特的纹理，透光看有不同层次、不同明暗的立体纤维纹理，成纸表面面层防伪纤维≥50根/每55*22mm，底层防伪纤维≥140根/每55*22mm，使得制得的涂布烟卡纸可以有效的与普通白卡纸区分，具有防伪功能。

Description

本纤防伪涂布烟卡纸及其生产工艺
技术领域
本发明属于造纸技术领域，具体涉及本纤防伪涂布烟卡纸及其生产工艺。
背景技术
目前香烟小盒、条盒主要使用涂布白卡纸包装，同时在包装纸外侧使用防伪技术，一般采用条码防伪、印刷防伪等，但随着新技术的不断发展，新型智能计算机技术、高精度数字化印刷技术的开发和普及等，使包装纸外侧现有的防伪技术较易失效，从而被仿制，影响市场。基于目前市场上所使用的包装基材一般都为普通涂布白卡纸，因此从包装原纸进行防伪，既更便于区别，又方便实现。
目前市场上的防伪包装纸大多防伪效果差，生产过程污染较严重。专利CN103790069A公开了一种防伪烟用卡纸，采用本色浆与漂白化学木浆混合浆，由于本色浆具有其独特的颜色，本色浆与漂白化学木浆混合后可以改变颜色，从而使卡纸底层具有一定的颜色，通过调节本色浆和漂白化学木浆的重量百分比，可以得到多种颜色，从而可以得到不同颜色的卡纸，达到防伪的效果，通过颜色防伪较容易被仿制，且调节本色浆和漂白化学木浆的重量百分比产生的颜色差异不大，不使用色卡的前提下很难肉眼及时地分辨真伪。专利CN1734016A公开了一种黑卡纸及其生产方法，纸张原纸以及背面涂布层均经过大量黑色染料染色而成，此产品虽然利用颜色区别做到了初步防伪，但这种产品在生产过程中，由于染色会产生非常难处理的废水，不利于环保要求，同时纸张本身也残留大量的偶氮类染料等化学物质，极易导致挥发物(VOCS)及重金属超标。专利CN103321096A公开了一种涂布白卡纸及其生产工艺()，其产品原纸仅有底层分布有本色纤维，防伪效果较低，同时经过印刷成盒后，防伪底层在盒内，不利于及时准确地分辨真伪，因此提供一种防伪性更高，更易于直接区分的原纸材料，是目前需要解决的问题。
发明内容
针对现有技术的不足，本发明的目的是提供一种本纤防伪涂布烟卡纸，其防伪性较高，且具有光泽度，表面平整。
本发明还提供本纤防伪涂布烟卡纸的生产工艺，简单易行，适合大规模生产。
本发明所述的本纤防伪涂布烟卡纸，包括原纸层、涂布层、背胶层，所述原纸包括面层、芯层和底层，所述面层防伪本色纤维占比4％-6％，所述芯层防伪本色纤维占比1％-3％，所述底层防伪本色纤维占比6％-9％；所述涂布层涂盖于面层之上，由内向外分为预涂、中涂、面涂三层；所述背胶层涂盖于底层。
所述面层的浆料，包括以下质量分数的组分：
漂白阔叶木硫酸盐浆 77％-83％；
漂白针叶木硫酸盐浆 11％-19％；
本色纤维 4％-6％。
所述芯层的浆料，包括以下质量分数的组分：
所述底层的浆料，包括以下质量分数的组分：
漂白阔叶木硫酸盐浆 60％-70％；
漂白针叶木硫酸盐浆 21％-27％；
本色纤维 6％-9％。
所述预涂、中涂与面涂的涂布量分别为8.5-10.5g/m2、8.5-10.5g/m2、8-10g/m2。所述预涂、中涂的涂料，包括以下质量份数的组分：
所述面涂的涂料，包括以下质量份数的组分：
所述背胶层的涂胶量为0.5-1.5g/m2。
所述背胶层为木薯淀粉蒸煮酶解后，稀释至固含量11-14％。
本发明所述的本纤防伪涂布烟卡纸的生产工艺，包括以下步骤：漂白阔叶木硫酸盐浆、漂白针叶木硫酸盐浆、本色纤维按照原料比例搭配上料，经过碎浆机碎解、磨浆机磨浆、在混合浆池按照工艺比例进行配浆，进入纸机浆池，同时添加干强剂5-15kg/t，再经锥形除渣器进行净化出去重杂质，由冲浆泵泵送到机前压力筛进一步筛选出轻渣，在冲浆泵前添加硫酸铝溶液0-50kg/t、阳离子松香胶0-15kg/t、滑石粉填料50-80kg/t，之后上三层叠网纸机成型，面、芯、底三层分别分布一定比例的本色纤维，成型同时面芯、芯底间使用喷淋淀粉(浓度4.5-6.0％)，再经过复合、压榨得到具有40-45％干度的湿纸幅，该湿纸幅经前干燥(干燥温度92-102℃)、表面施胶(正面施胶量2.0±0.5g/m2、背面施胶量1.5±0.5g/m2)、后干燥(干燥温度92-102℃)后得到原纸，再经过硬压光(压光压力35-55kN/m，压光温度180±20℃)、预涂、中涂、面涂、背胶、软压光(压光压力35-55kN/m，压光温度180±20℃)后进入卷取部，卷取、复卷切割打包成品。其技术指标为：定量220±3g/m2，厚度295±7μm，正面PPS粗糙度≤1.1μm，正面平滑度≥800S，水分6.5±0.5％，正面IGT≥1.1m/s，正面光泽度50.0±5.0％。
与现有技术相比，本发明有益效果如下：
(1)本发明通过三层不同比例的本色纤维添加，不但在成纸平面上分布形成独特的纹理，同时透光看更有不同层次、不同明暗的立体纤维纹理，成纸表面面层防伪纤维≥50根/每55*22mm，底层防伪纤维≥140根/每55*22mm，使得本发明所得的涂布烟卡纸可以有效的与普通白卡纸区分，具有独特的防伪功能。
(2)背面涂布背胶层，进一步提高了背面的平整度，同时通过背胶对纸面的拉伸，更有利于后段印刷、模切切断纸张翘曲的调节。
(3)三层中的本色纤维不需化学处理，避免了漂白工段化学制剂对环境的影响，既具有环保性又降低了成本。
(4)涂布涂料中配用了一定比例的瓷土，改善了涂料的流变性，提高了涂层的光泽度和表面性能，同时三层涂布有效地降低了表面粗糙度，提高了纸张的适印性能。
具体实施方式
以下结合实施例对本发明作进一步说明，但本发明的保护范围不仅限于此。
实施例中用到的所有原料除特殊说明外，均为市购。
实施例1
所述的本纤防伪涂布烟卡纸的生产工艺，包括以下步骤：
1、制备：
(1)制备喷淋淀粉
将350kg木薯原淀粉通过上料漏斗输送至溶解罐，同时向溶解罐添加2850kg水，充分稀释搅拌，制备成浓度11％的喷淋淀粉溶液，再通过二次稀释水进行稀释，制备浓度4.5％的溶液，备用。
(2)制备滑石粉填料
将1200kg滑石粉通过上料漏斗输送至溶解罐，同时向溶解罐添加4500kg水，充分稀释搅拌，制备成浓度21％的滑石粉溶液，再通过二次稀释水进行稀释，制备浓度10％的溶液，备用。
(3)制备硫酸铝溶液
将硫酸铝原液(博山瑞吉特食品级硫酸铝Al2O3含量≥7.5％)用清水稀释3倍，备用。
(4)制备阳离子松香胶溶液
将食品级阳离子松香胶原液(上海SOLENIS Hi-phase 1178型号)进行用清水稀释15倍，备用。
(5)制备施胶淀粉及背胶层淀粉
将250kg木薯原淀粉通过上料漏斗输送至溶解罐，同时向溶解罐添加550kg水，充分稀释搅拌，制备成浓度31％的淀粉溶液，淀粉溶液添加淀粉酶，再通过蒸汽加热温度80℃，进行高温酶转化，酶转化之后再通过蒸汽加热温度130℃，进行高温灭活，最后再通过温水二次稀释，制备浓度13％的溶液，备用。
(6)制备预涂、中涂的涂料：
按涂料组分比例将100份碳酸钙，14份丁苯胶乳，0.4份羧甲基纤维素(采购湖北达雅CMC)，0.12份NaOH，0.15份分散剂(采购自常熟聚合ZH-250型号)，0.01份杀菌剂(采购自埃马森AmiCide BX 9058型号)，0.08份消泡剂(采购自埃马森AmiDefoam 5873型号)，0.5份抗水剂(采购可思克KSK 386-503型号)，0.25份润滑剂(采购九州生物NCC MS-268型号)分批加入分散罐，同时添加清水稀释，制得固含量68.5％的预涂、中涂涂料，备用。
(7)制备面涂的涂料：
按涂料组分比例将75份碳酸钙，14.5份丁苯胶乳，25份瓷土，0.3份羧甲基纤维素，0.12份NaOH，0.15份分散剂(采购自常熟聚合ZH-250型号)，0.01份杀菌剂(采购自埃马森AmiCide BX 9058型号)，0.08份消泡剂(采购自埃马森AmiDefoam 5873型号)，0.5份抗水剂(采购自可思克KSK 386-503型号)，0.25份润滑剂(采购自九州生物NCC MS-268型号)分批加入分散罐，同时添加清水稀释，制得固含量65％的面涂涂料，备用。
2、制浆：
(1)1#浆线制备：
将漂白针叶木硫酸盐浆(100％银星NBKP)、漂白阔叶木硫酸盐浆(100％桉木LBKP)以及本色纤维(100％白金浆，白金浆使用未漂白Kraft Pulp Grade 670型号，该原料使用原产于太平洋西北部的道格拉斯冷杉木生产，其纤维长，纤维壁厚，适用于产生高强度纸张)按照8:1:3的比例投放到上料链板上，同时为混合均匀按照1包漂白阔叶木硫酸盐浆+2包本色纤维+4包漂白针叶木硫酸盐浆+1包本色纤维+4包漂白针叶木硫酸盐浆的顺序分布，经过碎浆机分散、除渣器除杂、磨浆机磨浆后，制得浓度3.5％，游离度320cfs，配比为8％LBKP+25％白金浆+67％NBKP的1#浆线浆料。
(2)2#浆线制备：
将100％漂白阔叶木硫酸盐浆(100％桉木LBKP)投放到上料链板上，经过碎浆机分散、除渣器除杂、磨浆机磨浆后，制得浓度4.3％，游离度360cfs，配比为100％LBKP的2#浆线浆料。
(3)3#浆线制备：
3#浆线使用过氧化氢法漂白制得的化学机械浆，经过磨浆机磨浆后，制得浓度4.0％，游离度440cfs，配比为100％APMP的3#浆线浆料。
3、混合、成纸：
通过自动配料系统，浆1#、2#、3#浆线的浆料按照如下比例混合，制得面、芯、底三层浆料：
面层：25％1#浆线+75％2#浆线混合，最终配比：漂白阔叶木硫酸盐79％+漂白针叶木硫酸盐浆17％+本色纤维4％；
芯层：10％1#浆线+5％2#浆线+60％3#浆线+25％损纸，最终配比：漂白阔叶木硫酸盐7％+漂白针叶木硫酸盐浆6％+本色纤维2％+65％漂白化学机械浆+20％损纸；
底层：35％1#浆线+65％2#浆线混合，最终配比：漂白阔叶木硫酸盐70％+漂白针叶木硫酸盐浆24％+本色纤维6％；
将混合后的浆料通过浆泵抽至纸机池，混合均匀，在芯层、底层纸机浆池各添加5kg/t、10kg/t干强剂，干强剂为奥赛金元KWT-201A型号阳离子聚丙烯酰胺，浓度20％，纸机浆池接着依次转入除砂器除砂、冲浆泵稀释，面层、芯层冲浆泵添加硫酸铝溶液、阳离子松香胶，底层冲浆泵添加硫酸铝溶液、阳离子松香胶、滑石粉填料，上述制备的硫酸铝溶液加入量面层0kg/t、芯层50kg/t、底层6kg/t，上述制备的阳离子松香胶溶液，加入量面层0kg/t、芯层3kg/t、底层8kg/t，滑石粉填料底层加入量80kg/t，冲浆泵后的浆料经过压力筛净化，在压力筛净化前(压力筛进口处)加入助留助滤剂(采购Axchem AXFLOC AF 904PG型号)，其浓度为0.20％、加入量面层300ppm、芯层300ppm、底层350ppm，然后再经过压力筛净化，之后将净化后的浆料输送到流浆箱，进行纸浆抄造，同时控制上网浓度面底层均0.4％，芯层为1.1％，最后进行上网成型，在上网成型阶段，在纸张层与层之间，进行喷淋淀粉的喷洒，以促进纸张结合，喷淋淀粉浓度4.5％，吨纸用量1.5kg，之后经过压榨脱水，得到43％干度的湿纸幅。
湿纸幅经过前烘六组烘缸蒸汽干燥，干燥温度由64-95℃逐步升温，得到干度86％的纸幅，该纸幅通过施胶机进行表面施胶，施胶浓度13％，正面施胶量2.3g/m2、背面施胶量1.4g/m2，之后在经过三组后干燥烘缸，再经过硬压光机，压光压力35kN/m，压光温度180℃，之后分别经过正面预涂、正面中涂、背面背胶、正面面涂，四道涂布头，对原纸表面进行修饰，正面预涂9.5g/m2、正面中涂8.5g/m2、正面面涂9.5g/m2，背胶量0.67g/m2，涂布后经过软压光机，压光压力49kN/m，压光温度190℃，之后进行卷取、复卷分切得到所述本纤防伪涂布烟卡纸。
对比例1
与实施例1相同，区别点在于去掉了正面面涂，并且不添加本色纤维。
对比例2
与实施例1相同，区别点在于去掉了背面背胶，并且不添加本色纤维。
下表是实施例制备的本纤防伪涂布烟卡纸与对比例1、对比例2、普通黄芯烟卡纸物理指标对比：

Claims (10)

1.一种本纤防伪涂布烟卡纸，其特征在于，包括原纸层、涂布层、背胶层，所述原纸包括面层、芯层和底层，所述面层防伪本色纤维占比4％-6％，所述芯层防伪本色纤维占比1％-3％，所述底层防伪本色纤维占比6％-9％；所述涂布层涂盖于面层之上，由内向外分为预涂、中涂、面涂三层；所述背胶层涂盖于底层。
2.根据权利要求1所述的本纤防伪涂布烟卡纸，其特征在于，所述面层的浆料，包括以下质量分数的组分：
漂白阔叶木硫酸盐浆 77％-83％；
漂白针叶木硫酸盐浆 11％-19％；
本色纤维 4％-6％。
3.根据权利要求1所述的本纤防伪涂布烟卡纸，其特征在于，所述芯层的浆料，包括以下质量分数的组分：
4.根据权利要求1所述的本纤防伪涂布烟卡纸，其特征在于，所述底层的浆料，包括以下质量分数的组分：
漂白阔叶木硫酸盐浆 60％-75％；
漂白针叶木硫酸盐浆 21％-27％；
本色纤维 6％-9％。
5.根据权利要求1所述的本纤防伪涂布烟卡纸，其特征在于，所述预涂、中涂与面涂的涂布量分别为8.5-10.5g/m2、8.5-10.5g/m2、8-10g/m2。
6.根据权利要求1所述的本纤防伪涂布烟卡纸，其特征在于，所述预涂、中涂的涂料，包括以下质量份数的组分：
7.根据权利要求1所述的本纤防伪涂布烟卡纸，其特征在于，所述面涂的涂料，包括以下质量份数的组分：
8.根据权利要求1所述的本纤防伪涂布烟卡纸，其特征在于，所述背胶层的涂胶量为0.5-1.5g/m2。
9.根据权利要求1所述的本纤防伪涂布烟卡纸，其特征在于，所述背胶层为木薯淀粉蒸煮酶解后，稀释至固含量11-14％。
10.一种权利要求1-9任一所述的本纤防伪涂布烟卡纸的生产工艺，其特征在于，包括以下步骤：漂白阔叶木硫酸盐浆、漂白针叶木硫酸盐浆、本色纤维按照原料比例搭配上料，经过碎浆机碎解、磨浆机磨浆、在混合浆池按照工艺比例进行配浆，进入纸机浆池，同时添加干强剂5-15kg/t，再经锥形除渣器进行净化出去重杂质，由冲浆泵泵送到机前压力筛进一步筛选出轻渣，在冲浆泵前添加硫酸铝溶液0-50kg/t、阳离子松香胶0-15kg/t、滑石粉填料50-80kg/t，之后上三层叠网纸机成型，面、芯、底三层分别分布一定比例的本色纤维，成型同时面芯、芯底间使用喷淋淀粉，再经过复合、压榨得到具有40-45％干度的湿纸幅，该湿纸幅经前干燥、表面施胶、后干燥后得到原纸，再经过硬压光、预涂、中涂、面涂、背胶、软压光后进入卷取部，卷取、复卷切割打包成品。
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