CN105672053B - 一种纱管纸板 - Google Patents
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Abstract
本发明提供一种纱管纸板，包括上下两层挂面层以及处于两挂面层之间的芯层，其特征在于，所述芯层采用A级牛卡纸和A级高强瓦楞原纸废渣为原料，经过磨浆、除渣、沉砂、增强处理、生物酶处理、二次磨浆的步骤制得。本发明提供的纱管纸板，可以实现低定量环保型高强纱管纸板的生产，由于纤维原料采用全废纸(废渣)，因此本产品具有突出的环保优势和成本优势。
Description
一种纱管纸板
技术领域
[0001]本发明涉及造纸技术领域，尤其涉及一种纱管纸板。
背景技术
[0002]目前市场上的纱管板纸通常包括上下两层挂面层和处于两挂面层之间的芯层。其 中，部分中低档产品为了降低生产成本芯层的制备采用废纸进行生产，但是废纸纤维由于 经历了一次或者多次使用，含有较多的杂质如胶粘物等，纤维性能也发生了一定程度的退 化，成纸强度较差，难以满足高档纱管纸板的使用需要。因此，如何在使用废渣的情况下尽 量提高纱管纸板的强度，并避免胶粘物的不利影响是造纸企业十分关心的问题。
发明内容
[0003]本发明的目的在于解决上述现有技术存在的缺陷，提供一种采用全废纸生产的低 定量环保型高强纱管纸板。
[0004] —种纱管纸板，包括上下两层挂面层以及处于两挂面层之间的芯层，所述芯层采 用A级牛卡纸和A级高强瓦楞原纸废渣为原料，经过磨浆、除渣、沉砂、增强处理、生物酶处 理、二次磨浆的步骤制得；
[0005] 其中，增强处理的步骤包括：
[0006]经过沉砂后的浆料控制其浓度为3-3.5 %，加入阳离子淀粉与羧甲基纤维素的混 合物，控制温度25_3〇°C、pH值为6.5-7.0、时间在0.5-1.0小时；
[0007] 生物酶处理的步骤包括：
[0008]给将增强处理后的浆料中添加生物酶，处理工艺:作用时间3-4h，对绝干浆加入量 0.：L - 0.2%。
[0009] 进一步地，如上所述的纱管纸板，所述阳离子淀粉与羧甲基纤维的质量比为100: 10-15,对绝干浆用量为2.5-3 %。
[0010] 进一步地，如上所述的纱管纸板，所述生物酶为酸性果胶酶，其酶活力单位为 1500_2000u/ml，pH 值为 6 • 5-7 • 0。
[0011] 进一步地，如上所述的纱管纸板，所述芯层的质量占上下两层挂面层质量的60 % -70% 〇
[0012]进一步地，如上所述的纱管纸板，所述挂面层采用废纸为原料，其制备工艺包括以 下步骤：
[0013] 步骤1:将废纸通过碎浆机碎解成纸浆；
[0014] 步骤2:将纸浆通过纤维分离机分离出纤维，同时将粗浆返回碎浆机继续制备碎 浆，而后在通过纤维分离机分离出纤维，如此反复若千次，收集分离出的纤维；
[0015] 步骤3:将纤维在浆池中进行撹拌和储存；
[0016] 步骤4:磨浆，磨浆浓度为4.2-4.5%。
[0017] 本发明提供的纱管纸板，可以实现低定量环保型高强纱管纸板的生产，由于纤维 原料采用全废纸(废渣），因此本产品具有突出的环保优势和成本优势。
附图说明
[0018] 图1为本发明挂面层生产工艺流程图；
[0019] 图2为本发明芯层生产工艺流程图。
具体实施方式
[0020] 为使本发明的目的、技术方案和优点更加清楚，下面本发明中的技术方案进行清 楚、完整地描述，显然，所描述的实施例是本发明~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作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。
[0021] 本发明提供的纱管纸板包括上下两层挂面层以及处于两挂面层之间的芯层。
[0022] 一般企业挂面层采用原生未漂白木浆作为纤维原料的产品价格较高，需要使用木 浆原料，环境友好性差，而本发明为了实现纱管纸板的环保性，采用A级牛卡纸和A级高强瓦 楞原纸废渣为原料废纸为原料制备芯层，其制备方法如图2所示，包括以下步骤：
[0023]磨浆、除渣、沉砂、增强处理、生物酶处理、二次磨浆；
[0024] 其中，增强处理的步骤包括：
[0025]经过沉砂后的浆料控制其浓度为3-3.5%，加入阳离子淀粉与羧甲基纤维素的混 合物，控制温度25_3〇°C、pH值为6 • 5-7 • 0、时间在0 • 5-1.0小时；
[0026] 生物酶处理的步骤包括：
[0027]给将增强处理后的浆料中添加生物酶，处理工艺:作用时间3-4h，对绝干浆加入量 0.1-0 _2%。所述阳离子淀粉与羧甲基纤维的质量比为1〇〇 :10-15，对绝干浆用量为2.5-3%。所述生物酶为酸性果胶酶，其酶活力单位为i500-2000y/ml，pH值为6 • 5-7.0。所述芯层 的质量占上下两层挂面层质量的60%-70%。
[0028]本发明采用阳离子淀粉/羧甲基纤维素对纤维进行处理，提高成纸强度，由于造纸 废渣中存在大量的细小短纤维，本发明采用阳离子淀粉/羧甲基纤维素对纤维进行处理，处 理条件:浆料浓度3-3_5%，温度25-30°(：，阳离子淀粉:羧甲基纤维素=100:10—15，对绝干 浆用量2 • 5-3%，从而提高纸张的成纸度。具体地，绝干浆是指纤维含量为1〇〇%，不含任何 水分的浆料。浆料浓度3-3 • 5 %，剩下％. 5 % -97 %的是水。对绝干浆用量2 • 5-3 %，是指绝干 的阳呙子淀粉和羧甲基纤维素的质量与绝干楽;的质量比为2_5_3:1〇〇,其余都是水。
[0029]本发明采用生物酶对纤维进行处理，该生物酶是一种含有酯类酶的产品，可将大 块胶粘物分解为^小胶粘物而起作用，避免胶黏物粘附到成型网、毛布和烘缸上影响纸机 的正常运行，并提高成纸质量，处理工艺:作用时间3_4h，对绝干浆加入量〇.卜〇• 2%。所述 该生物酶属于酸性果胶酶，酶活l5〇0_2000u/ml，最适宜pH值为6 • 5-7.0。
[0030]如图1所示，本发明所述挂面层采用废纸为原料，其制备工艺包括以下步骤.
[0031] 步骤1:将废纸通过碎浆机碎解成纸浆；
[0032]步骤2:将纸浆通过纤维分离机分离出纤维，同时将粗浆返回碎浆机继续制备碎 浆，而后在通过纤维分离机分离出纤维，如此反复若干次，收集分离出的纤维.
[0033]步骤3:将纤维在浆池中进行搅拌和储存；
[0034] 步骤4:磨浆，磨浆浓度为4 •2-4• 5%，磨浆方式以帚化为主，切断较少，以保证纤维 长度及强度。
[0035]所谓低定量是指与通常的纱管纸板相比定量更低，纸张定量即每一平方米纸或纸 板的重量，记作g/m2,俗称“克重”。定量越低，使用的纤维原料就越少，水电汽的消耗也越 少，经济性能和环保性能越好。而本发明采用废纸为原料来生成挂面层和芯层，因此，不但 环保性能好而且经济性能也强。
[0036] 上述面层和芯层在造纸车间网部复合成为本发明低定量环保型高强纱管纸板，本 发明低定量环保型高强纱管纸板可以实现低定量环保型高强纱管纸板的生产，由于纤维原 料采用全废纸(废渣），因此本产品具有突出的环保优势和成本优势。
[0037] 本发明通过对传统的纱管纸板制浆生产线进行技术改造，实现A级牛卡纸和A级高 强瓦楞原纸废渣的综合利用，而且对纤维进行阳离子淀粉/羧甲基纤维素增强处理，进一步 增加其氢键结合，对提高纱管纸板产品耐破指数具有显著作用，从而实现采用1〇〇%废纸 (废渣)来生产高强纱管纸板的芯层。
[0038] 最后应说明的是：以上实施例仅用以说明本发明的技术方案，而非对其限制；尽管 参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解:其依然可 以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换； 而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的精神和 范围。
Claims (1)
1. 一种纱管纸板，包括上下两层挂面层以及处于两挂面层之间的芯层，其特征在于，所 述芯层采用A级牛卡纸和A级高强瓦楞原纸废渣为原料，经过磨浆、除渣、沉砂、增强处理、生 物酶处理、二次磨浆的步骤制得； 其中，增强处理的步骤包括： 经过沉砂后的浆料控制其浓度为3_3 • 5 %，加入阳离子淀粉与羧甲基纤维素的混合物， 控制温度25-30°C、pH值为6 • 5_7 • 0、时间在0 • 5-1 • 0小时； 生物酶处理的步骤包括： 给将增强处理后的浆料中添加生物酶，处理工艺:作用时间3_4h，对绝干楽加入量O.h 0.2%； 所述阳离子淀粉与羧甲基纤维的质量比为100: IO-I5,对绝干菜用量为2.5-3%; 所述生物酶为酸性果胶酶，其酶活力单位为1500-2000y/mi，pH值为6 • 5-7.0; 所述芯层的质量占上下两层挂面层质量的60%-70% ; 所述挂面层采用废纸为原料，其制备工艺包括以下步骤： 步骤1:将废纸通过碎浆机碎解成纸浆； ^ 步骤2:将纸浆通过纤维分尚机分尚出纤维，同时将粗浆返回碎浆机继续制备碎浆，而 后在通过纤维分离机分离出纤维，如此反复若干次，收集分禽屮的许維 步骤3:将纤雜魏中进行讎和储存； 步骤4:磨浆，磨浆浓度为4.2-4.5 %。
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