CN113073498B - 高耐破多层牛皮箱板纸及其制备方法 - Google Patents
高耐破多层牛皮箱板纸及其制备方法 Download PDFInfo
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Abstract
本发明属于造纸技术领域,尤其涉及一种高耐破多层牛皮箱板纸及其制备方法。本发明针对现有技术中在制备牛皮箱纸板时大都直接采用将废纸打浆制备的方式,而不加以区分,不能最大程度的利用废纸纤维的价值,提高了生产成本的问题,提供一种高耐破多层牛皮箱板纸及其制备方法,包括面层和底层,所述面层涂覆有正面施胶层,所述底层涂覆有背面施胶层,所述面层和底层的总厚度是正面施胶层和背面施胶层的总厚度的5倍以上。本发明分别以木浆及长纤维、中纤维及短纤维为主要成分形成纸板的面层、底层,更充分的利用了废纸纤维的价值,优化纤维结构,提高牛皮箱板纸产品的耐破指标,降低了生产成本。
Description
技术领域
本发明属于造纸技术领域,尤其涉及一种高耐破多层牛皮箱板纸及其制备方法。
背景技术
造纸行业是国民经济基础性原料行业,受经济增速影响明显,近年受经济增速下行压力等因素影响,我国造纸业出现了增速放缓甚至负增长现象,但是箱板纸、瓦楞原纸等包装用纸因下游需求加大等因素影响保持了良好的增长态势,年均增速维持在2%~4%。箱板纸是纸箱用纸的主要纸种之一。主要是与瓦楞纸芯粘合后制成瓦楞纸箱,主要用于家用电器、日用百货、针棉织物、文化用品、中西成药等的外包装。我国国内箱板纸市场需求旺盛,除2013年受行业整体经济影响略有下滑外,整体保持增长态势,2007-2016年消费量年均增长率为6.04%。
我国纸及纸制品主要生产企业在生产制造过程中,已注意到节能降耗、清洁生产、环境保护、循环利用等,绿色制造已经取得了显著的成就,正在向绿色生产迈进。以提高制造业创新能力和基础能力为重点,推进信息技木与制造技木深度融合,实施智能制造,促进制造业朝高端、智能、绿色、服务方向发展,培育制造业竞争新优势,已经形成造纸行业的共识。
作为包装材料,国内箱板纸市场仍然显现出品种结构的不够合理,白面牛卡,低定量牛卡的需求量正在不断上升,这就要求进一步加快国产优质牛皮箱板纸的生产步伐,替代进口产品,平衡箱板纸市场的产品格局。针对目前的市场状况,国内箱板纸企业,一方面应及时捕捉市场商机,把握市场主动权,另一方面应针对自已的特点细化市场,生产出具有自己特色的产品、迎合纸箱企业的不同需求,并且在提高质量、降低生产成本上狠下功夫、增加技术含量。
目前,现有技术中在制备牛皮箱纸板时大都直接采用将废纸打浆制备的方式,而不加以区分,不能最大程度的利用废纸纤维的价值,提高了生产成本。
例如,中国发明专利公开了一种废纸回用生产低克重高强度重型包装牛卡纸的工艺[申请号:201510008443.X],该发明专利包括以下几个步骤:1、废纸预处理:将废纸经过粉碎之后用脱墨剂对碎纸进行脱墨处理,得到废纸料;2、制浆:以针叶木和步骤1中得到的废纸料为原料,采用硫酸盐法对原料进行蒸煮,蒸煮时加入木薯淀粉、抗菌剂和增强剂,在得到的纸浆中加入生物酶和聚丙烯酰胺进行打浆,得到的纸浆采用纤维分级筛分离出长纤维纸浆;3、造纸:将步骤2中得到的长纤维纸浆进行造纸,得到成品牛卡纸。
该发明专利具有减少吨浆打浆时的电耗;大幅度降低木浆用量的优势,但其仍未解决上述问题。
发明内容
本发明的目的是针对上述问题,提供一种对废纸纤维利用程度高、生产成本低、耐破度好的高耐破多层牛皮箱板纸。
本发明的另一目的是针对上述问题,提供一种对废纸纤维利用程度高、生产成本低、耐破度好的高耐破多层牛皮箱板纸的制备方法。
一种高耐破多层牛皮箱板纸,包括底层和包含有木浆的木浆面层,所述面层远离底层一侧表面涂覆有正面施胶层,所述底层远离面层一侧表面涂覆有背面施胶层,所述面层和底层的总厚度是正面施胶层和背面施胶层的总厚度的5倍以上。
在上述的高耐破多层牛皮箱板纸中,所述底层有1-2层;所述的底层有2层结构时,靠近面层一侧为芯层,远离面层一侧为下底层。
在上述的高耐破多层牛皮箱板纸中,所述面层还包括纤维长度为2.0mm以上的长纤维;所述芯层包括纤维长度为1.1mm以下的短纤维;所述下底层包括纤维长度为1.1-2.0mm的中纤维。
一种高耐破多层牛皮箱板纸的制备方法中,包括以下步骤:
步骤一:以废纸或废纸浆板、木浆板为原料,废纸或废纸浆板经水力碎浆机碎浆,经除渣和粗筛除杂后,进入纤维分级筛中,分筛得到纤维长度为2.0以上的长纤维浆、纤维长度为1.1-2.0mm的中纤维浆和纤维长度为1.1mm以下的短纤维浆,所述木浆板经过水力碎浆机碎解、高浓除渣器除杂、双盘磨打浆处理后形成木浆;
步骤二:将长纤维浆和短纤维浆按质量份数比为80-90:10-20的比例混合得到面层废纸浆,面层废纸浆与木浆再按质量份数比为0-90:10-100的比例混合,混合均匀,得到木浆面层用浆,将短纤维浆和中纤维浆按质量份数比为80-85:15-20的比例混合均匀后,得到芯层用浆,将中纤维浆和短纤维浆按质量份数比为80-85:15-20的比例混合均匀后,得到下底层用浆;
步骤三:在步骤二中得到的面层用浆、芯层用浆、下底层用浆添加浆内施胶剂、增强剂、抗水剂,将面层用浆、芯层用浆和底层用浆经造纸机成型网部滤水抄造、复合,经压榨脱水、烘干后形成含有面层、芯层和下底层的纸页;
步骤四:将表面施胶剂分别施胶至面层和下底层表面,分别形成正面施胶层和背面施胶层;
步骤五:烘干、压光、卷取得到成品纸。
在上述的高耐破多层牛皮箱板纸的制备方法中,所述浆内施胶剂包含烷基烯酮二聚物、淀粉、羧甲基纤维素钠中至少1种成分。
在上述的高耐破多层牛皮箱板纸的制备方法中,所述增强剂的添加量为每吨造纸绝干浆20-60kg,增强剂包括聚丙烯酰胺;所述浆内抗水剂的添加量为每吨造纸绝干浆40-80kg。
在上述的高耐破多层牛皮箱板纸的制备方法中,所述浆内抗水剂包括质量份数分别为2-8份的十二烯基丁二酸酐、10-20份的氯化锌和20-40份的聚酰胺环氧氯丙烷树脂。
在上述的高耐破多层牛皮箱板纸的制备方法中,所述浆内抗水剂包括质量份数分别为5份的十二烯基丁二酸酐、15份的氯化锌和30份的聚酰胺环氧氯丙烷树脂。
在上述的高耐破多层牛皮箱板纸的制备方法中,所述表面施胶剂包括5-15份的三聚氰胺甲醛树脂、10-20份的松香胶和2-6份的石蜡。
在上述的高耐破多层牛皮箱板纸的制备方法中,所述表面施胶剂包括10份的三聚氰胺甲醛树脂、15份的松香胶和4份的石蜡。
与现有的技术相比,本发明的优点在于:
1、本发明采用多层结构,同时采用纤维分级技术将废纸或废纸浆板碎解后分级为不同长度的纤维,分别以木浆和长纤维、中纤维和短纤维为主要成分形成纸板的面层、底层,优化了牛皮箱板纸的结构组成,更充分的利用了废纸纤维的价值,优化纤维结构,提高牛皮箱板纸产品的耐破指标,降低了生产成本。
2、本发明使用的浆内施胶剂为烷基烯酮二聚物、淀粉、羧甲基纤维素钠,相比于现有技术中单纯采用淀粉的技术方案具有更强的层间结合强度。
3、本发明在造纸原浆中加入有浆内抗水剂,压榨脱水、烘干后又在表面施胶,双重抗水使得制得的纸板具有较好的抗水性能,同时在造纸原浆中加入有增强剂,提高了制得的牛皮箱板纸的强度。
4、本发明的制造方法简单,同时工艺简便可控,生产成本较低。
附图说明
图1是本发明的结构示意图;
图2是利用对比例8中记载的方法制得产品的结构示意图;
图中:面层1、底层3、芯层31、下底层32、正面施胶层4、背面施胶层5、纸板主体6。
具体实施方式
下面结合附图和具体实施方式对本发明做进一步详细的说明。
实施例1
本实施例提供一种高耐破多层牛皮箱板纸制备方法,如图1所示,包括以下步骤:
步骤一:以废纸及废纸浆板、木浆板为原料,废纸及废纸浆板经水力碎浆机碎浆,经除渣和粗筛除杂后,进入纤维分级筛中,分筛得到纤维长度为2.0以上的长纤维浆、纤维长度为1.1-2.0mm的中纤维浆和纤维长度为1.1mm以下的短纤维浆,所述木浆板经过水力碎浆机碎解、高浓除渣器除杂、双盘磨打浆处理后形成木浆;
步骤二:将长纤维浆和短纤维浆按质量份数比为80:20的比例混合得到面层废纸浆,面层废纸浆与木浆再按质量份数比为0:100的比例混合,混合均匀,得到木浆面层用浆,将短纤维浆和中纤维浆按质量份数比为80:20的比例混合均匀后,得到芯层用浆,将中纤维浆和短纤维浆按质量份数比为80:20的比例混合均匀后,得到下底层用浆;
步骤三:在步骤二中得到的面层用浆、芯层用浆、下底层用浆添加浆内施胶剂、增强剂、抗水剂,将面层用浆、芯层用浆和底层用浆经造纸机成型网部滤水抄造、复合,经压榨脱水、烘干后形成含有面层1、芯层31和下底层32的纸页;其中,增强剂的添加量为每吨造纸绝干浆20kg,浆内抗水剂的添加量为每吨造纸绝干浆80kg;
步骤四:将表面施胶剂分别施胶至面层1和下底层32表面,分别形成正面施胶层4和背面施胶层5;
步骤五:烘干、压光、卷取得到成品纸板。
其中,浆内施胶剂包括质量比烷基烯酮二聚物:淀粉:羧甲基纤维素钠为2:7:1;增强剂包括聚丙烯酰胺;浆内抗水剂包括质量份数分别为2份的十二烯基丁二酸酐、20份的氯化锌和40份的聚酰胺环氧氯丙烷树脂;表面施胶剂包括5份的三聚氰胺甲醛树脂、20份的松香胶和6份的石蜡。
实施例2
本实施例提供一种高耐破多层牛皮箱板纸制备方法,如图1所示,包括以下步骤:
步骤一:以废纸及废纸浆板、木浆板为原料,废纸及废纸浆板经水力碎浆机碎浆,经除渣和粗筛除杂后,进入纤维分级筛中,分筛得到纤维长度为2.0以上的长纤维浆、纤维长度为1.1-2.0mm的中纤维浆和纤维长度为1.1mm以下的短纤维浆,所述木浆板经过水力碎浆机碎解、高浓除渣器除杂、双盘磨打浆处理后形成木浆;
步骤二:将长纤维浆和短纤维浆按质量份数比为90:10的比例混合得到面层废纸浆,面层废纸浆与木浆再按质量份数比为90:10的比例混合,混合均匀,得到木浆面层用浆,将短纤维浆和中纤维浆按质量份数比为85:15的比例混合均匀后,得到芯层用浆,将中纤维浆和短纤维浆按质量份数比为85:15的比例混合均匀后,得到下底层用浆;
步骤三:在步骤二中得到的面层用浆、芯层用浆、下底层用浆添加浆内施胶剂、增强剂、抗水剂,将面层用浆、芯层用浆和底层用浆经造纸机成型网部滤水抄造、复合,经压榨脱水、烘干后形成含有面层1、芯层31和下底层32的纸页;其中,增强剂的添加量为每吨造纸绝干浆20kg,浆内抗水剂的添加量为每吨造纸绝干浆80kg;
步骤四:将表面施胶剂分别施胶至面层1和下底层32表面,分别形成正面施胶层4和背面施胶层5;
步骤五:烘干、压光、卷取得到成品纸板。
其中,浆内施胶剂包括质量比烷基烯酮二聚物:淀粉:羧甲基纤维素钠为2:7:1;增强剂包括聚丙烯酰胺;浆内抗水剂包括质量份数分别为8份的十二烯基丁二酸酐、10份的氯化锌和20份的聚酰胺环氧氯丙烷树脂;表面施胶剂包括15份的三聚氰胺甲醛树脂、10份的松香胶和2份的石蜡。
实施例3
本实施例提供一种高耐破多层牛皮箱板纸制备方法,如图1所示,包括以下步骤:
步骤一:以废纸及废纸浆板、木浆板为原料,废纸及废纸浆板经水力碎浆机碎浆,经除渣和粗筛除杂后,进入纤维分级筛中,分筛得到纤维长度为2.0以上的长纤维浆、纤维长度为1.1-2.0mm的中纤维浆和纤维长度为1.1mm以下的短纤维浆,所述木浆板经过水力碎浆机碎解、高浓除渣器除杂、双盘磨打浆处理后形成木浆;
步骤二:将长纤维浆和短纤维浆按质量份数比为85:15的比例混合得到面层废纸浆,面层废纸浆与木浆再按质量份数比为50:50的比例混合,混合均匀,得到木浆面层用浆,将短纤维浆和中纤维浆按质量份数比为83:17的比例混合均匀后,得到芯层用浆,将中纤维浆和短纤维浆按质量份数比为82:18的比例混合均匀后,得到下底层用浆;
步骤三:在步骤二中得到的面层用浆、芯层用浆、下底层用浆添加浆内施胶剂、增强剂、抗水剂,将面层用浆、芯层用浆和底层用浆经造纸机成型网部滤水抄造、复合,经压榨脱水、烘干后形成含有面层1、芯层31和下底层32的纸页;其中,增强剂的添加量为每吨造纸绝干浆20kg,浆内抗水剂的添加量为每吨造纸绝干浆80kg;
步骤四:将表面施胶剂分别施胶至面层1和下底层32表面,分别形成正面施胶层4和背面施胶层5;
步骤五:烘干、压光、卷取得到成品纸板。
其中,浆内施胶剂包括质量比烷基烯酮二聚物:淀粉:羧甲基纤维素钠为2:7:1;增强剂包括聚丙烯酰胺;浆内抗水剂包括质量份数分别为5份的十二烯基丁二酸酐、15份的氯化锌和30份的聚酰胺环氧氯丙烷树脂;表面施胶剂包括10份的三聚氰胺甲醛树脂、15份的松香胶和4份的石蜡。
实施例4
本实施例提供一种高耐破多层牛皮箱板纸,如图1所示,包括底层3和包含有木浆的面层1,所述底层3有1-2层,优选地,底层3有2层,其中靠近面层一侧为芯层31,远离面层一侧为下底层32。所述面层1远离芯层31一侧表面涂覆有正面施胶层4,所述下底层32远离芯层31一侧表面涂覆有背面施胶层5,所述面层1、芯层31和下底层32的总厚度是正面施胶层4和背面施胶层5的总厚度的5倍以上。所述面层1还包括纤维长度为2.0mm以上的长纤维;所述芯层31包括纤维长度为1.1mm以下的短纤维;所述下底层32包括纤维长度为1.1-2.0mm的中纤维。
即面层1以木浆和纤维长度为2.0mm以上的长纤维为主要成分,芯层31以纤维长度为1.1mm以下的短纤维为主要成分,底下底层32以纤维长度为1.1-2.0mm的中纤维为主要成分。故本发明采用多层结构,同时采用纤维分级技术将废纸分级为长纤维、中纤维和短纤维,分别以长纤维及木浆、中纤维和短纤维为主要成分形成牛皮箱板纸的面层1、芯层31和下底层32,优化了牛皮箱板纸的结构组成,更充分的利用了废纸纤维的价值,优化纤维结构,提高牛皮箱板纸产品的耐破指标,降低了生产成本。
对比例1
本对比例提供一种高耐破多层牛皮箱板纸制备方法,如图1所示,包括以下步骤:
步骤一:以废纸及废纸浆板、木浆板为原料,废纸及废纸浆板经水力碎浆机碎浆,经除渣和粗筛除杂后,进入纤维分级筛中,分筛得到纤维长度为2.0以上的长纤维浆、纤维长度为1.1-2.0mm的中纤维浆和纤维长度为1.1mm以下的短纤维浆,所述木浆板经过水力碎浆机碎解、高浓除渣器除杂、双盘磨打浆处理后形成木浆;
步骤二:将长纤维浆和短纤维浆按质量份数比为85:15的比例混合得到面层废纸浆,面层废纸浆与木浆再按质量份数比为50:50的比例混合,混合均匀,得到木浆面层用浆,将短纤维浆和中纤维浆按质量份数比为83:17的比例混合均匀后,得到芯层用浆,将中纤维浆和短纤维浆按质量份数比为82:18的比例混合均匀后,得到下底层用浆;
步骤三:在步骤二中得到的面层用浆、芯层用浆、下底层用浆添加浆内施胶剂、增强剂、抗水剂,将面层用浆、芯层用浆和底层用浆经造纸机成型网部滤水抄造、复合,经压榨脱水、烘干后形成含有面层1、芯层31和下底层32的纸页;其中,增强剂的添加量为每吨造纸绝干浆20kg,浆内抗水剂的添加量为每吨造纸绝干浆80kg;
步骤四:将表面施胶剂分别施胶至面层1和下底层32表面,分别形成正面施胶层4和背面施胶层5;
步骤五:烘干、压光、卷取得到成品纸板。
其中,浆内施胶剂包括质量比烷基烯酮二聚物:淀粉:羧甲基纤维素钠为2:7:1;增强剂包括淀粉;浆内抗水剂包括质量份数分别为5份的十二烯基丁二酸酐、15份的氯化锌和30份的聚酰胺环氧氯丙烷树脂;表面施胶剂包括10份的三聚氰胺甲醛树脂、15份的松香胶和4份的石蜡。
对比例2
本对比例提供一种高耐破多层牛皮箱板纸制备方法,如图1所示,包括以下步骤:
步骤一:以废纸及废纸浆板、木浆板为原料,废纸及废纸浆板经水力碎浆机碎浆,经除渣和粗筛除杂后,进入纤维分级筛中,分筛得到纤维长度为2.0以上的长纤维浆、纤维长度为1.1-2.0mm的中纤维浆和纤维长度为1.1mm以下的短纤维浆,所述木浆板经过水力碎浆机碎解、高浓除渣器除杂、双盘磨打浆处理后形成木浆;
步骤二:将长纤维浆和短纤维浆按质量份数比为85:15的比例混合得到面层废纸浆,面层废纸浆与木浆再按质量份数比为50:50的比例混合,混合均匀,得到木浆面层用浆,将短纤维浆和中纤维浆按质量份数比为83:17的比例混合均匀后,得到芯层用浆,将中纤维浆和短纤维浆按质量份数比为82:18的比例混合均匀后,得到下底层用浆;
步骤三:在步骤二中得到的面层用浆、芯层用浆、下底层用浆添加浆内施胶剂、增强剂、抗水剂,将面层用浆、芯层用浆和底层用浆经造纸机成型网部滤水抄造、复合,经压榨脱水、烘干后形成含有面层1、芯层31和下底层32的纸页;其中,增强剂的添加量为每吨造纸绝干浆20kg,浆内抗水剂的添加量为每吨造纸绝干浆80kg;
步骤四:将表面施胶剂分别施胶至面层1和下底层32表面,分别形成正面施胶层4和背面施胶层5;
步骤五:烘干、压光、卷取得到成品纸板。
其中,层浆内施胶剂包括质量比烷基烯酮二聚物:淀粉:羧甲基纤维素钠为2:7:1;增强剂包括聚丙烯酰胺;浆内抗水剂包括质量份数分别为15份的氯化锌和30份的聚酰胺环氧氯丙烷树脂;表面施胶剂包括10份的三聚氰胺甲醛树脂、15份的松香胶和4份的石蜡。
对比例3
本对比例提供一种高耐破多层牛皮箱板纸制备方法,如图1所示,包括以下步骤:
步骤一:以废纸及废纸浆板、木浆板为原料,废纸及废纸浆板经水力碎浆机碎浆,经除渣和粗筛除杂后,进入纤维分级筛中,分筛得到纤维长度为2.0以上的长纤维浆、纤维长度为1.1-2.0mm的中纤维浆和纤维长度为1.1mm以下的短纤维浆,所述木浆板经过水力碎浆机碎解、高浓除渣器除杂、双盘磨打浆处理后形成木浆;
步骤二:将长纤维浆和短纤维浆按质量份数比为85:15的比例混合得到面层废纸浆,面层废纸浆与木浆再按质量份数比为50:50的比例混合,混合均匀,得到木浆面层用浆,将短纤维浆和中纤维浆按质量份数比为83:17的比例混合均匀后,得到芯层用浆,将中纤维浆和短纤维浆按质量份数比为82:18的比例混合均匀后,得到下底层用浆;
步骤三:在步骤二中得到的面层用浆、芯层用浆、下底层用浆添加浆内施胶剂、增强剂、抗水剂,将面层用浆、芯层用浆和底层用浆经造纸机成型网部滤水抄造、复合,经压榨脱水、烘干后形成含有面层1、芯层31和下底层32的纸页;其中,增强剂的添加量为每吨造纸绝干浆20kg,浆内抗水剂的添加量为每吨造纸绝干浆80kg;
步骤四:将表面施胶剂分别施胶至面层1和下底层32表面,分别形成正面施胶层4和背面施胶层5;
步骤五:烘干、压光、卷取得到成品纸板。
其中,浆内施胶剂包括质量比烷基烯酮二聚物:淀粉:羧甲基纤维素钠为2:7:1;增强剂包括聚丙烯酰胺;浆内抗水剂包括质量份数分别为5份的十二烯基丁二酸酐和30份的聚酰胺环氧氯丙烷树脂;表面施胶剂包括10份的三聚氰胺甲醛树脂、15份的松香胶和4份的石蜡。
对比例4
本对比例提供一种高耐破多层牛皮箱板纸制备方法,如图1所示,包括以下步骤:
步骤一:以废纸及废纸浆板、木浆板为原料,废纸及废纸浆板经水力碎浆机碎浆,经除渣和粗筛除杂后,进入纤维分级筛中,分筛得到纤维长度为2.0以上的长纤维浆、纤维长度为1.1-2.0mm的中纤维浆和纤维长度为1.1mm以下的短纤维浆,所述木浆板经过水力碎浆机碎解、高浓除渣器除杂、双盘磨打浆处理后形成木浆;
步骤二:将长纤维浆和短纤维浆按质量份数比为85:15的比例混合得到面层废纸浆,面层废纸浆与木浆再按质量份数比为50:50的比例混合,混合均匀,得到木浆面层用浆,将短纤维浆和中纤维浆按质量份数比为83:17的比例混合均匀后,得到芯层用浆,将中纤维浆和短纤维浆按质量份数比为82:18的比例混合均匀后,得到下底层用浆;
步骤三:在步骤二中得到的面层用浆、芯层用浆、下底层用浆添加浆内施胶剂、增强剂、抗水剂,将面层用浆、芯层用浆和底层用浆经造纸机成型网部滤水抄造、复合,经压榨脱水、烘干后形成含有面层1、芯层31和下底层32的纸页;其中,增强剂的添加量为每吨造纸绝干浆20kg,浆内抗水剂的添加量为每吨造纸绝干浆80kg;
步骤四:将表面施胶剂分别施胶至面层1和下底层32表面,分别形成正面施胶层4和背面施胶层5;
步骤五:烘干、压光、卷取得到成品纸板。
其中,浆内施胶剂包括质量比烷基烯酮二聚物:淀粉:羧甲基纤维素钠为2:7:1;增强剂包括聚丙烯酰胺;浆内抗水剂包括质量份数分别为5份的十二烯基丁二酸酐和15份的氯化锌;表面施胶剂包括10份的三聚氰胺甲醛树脂、15份的松香胶和4份的石蜡。
对比例5
本对比例提供一种高耐破多层牛皮箱板纸制备方法,如图1所示,包括以下步骤:
步骤一:以废纸及废纸浆板、木浆板为原料,废纸及废纸浆板经水力碎浆机碎浆,经除渣和粗筛除杂后,进入纤维分级筛中,分筛得到纤维长度为2.0以上的长纤维浆、纤维长度为1.1-2.0mm的中纤维浆和纤维长度为1.1mm以下的短纤维浆,所述木浆板经过水力碎浆机碎解、高浓除渣器除杂、双盘磨打浆处理后形成木浆;
步骤二:将长纤维浆和短纤维浆按质量份数比为85:15的比例混合得到面层废纸浆,面层废纸浆与木浆再按质量份数比为50:50的比例混合,混合均匀,得到木浆面层用浆,将短纤维浆和中纤维浆按质量份数比为83:17的比例混合均匀后,得到芯层用浆,将中纤维浆和短纤维浆按质量份数比为82:18的比例混合均匀后,得到下底层用浆;
步骤三:在步骤二中得到的面层用浆、芯层用浆、下底层用浆添加浆内施胶剂、增强剂、抗水剂,将面层用浆、芯层用浆和底层用浆经造纸机成型网部滤水抄造、复合,经压榨脱水、烘干后形成含有面层1、芯层31和下底层32的纸页;其中,增强剂的添加量为每吨造纸绝干浆20kg,浆内抗水剂的添加量为每吨造纸绝干浆80kg;
步骤四:将表面施胶剂分别施胶至面层1和下底层32表面,分别形成正面施胶层4和背面施胶层5;
步骤五:烘干、压光、卷取得到成品纸板。
其中,浆内施胶剂包括质量比烷基烯酮二聚物:淀粉:羧甲基纤维素钠为2:7:1;增强剂包括聚丙烯酰胺;浆内抗水剂包括质量份数分别为5份的十二烯基丁二酸酐、15份的氯化锌和30份的聚酰胺环氧氯丙烷树脂;表面施胶剂包括15份的松香胶和4份的石蜡。
对比例6
本对比例提供一种高耐破多层牛皮箱板纸制备方法,如图1所示,包括以下步骤:
步骤一:以废纸及废纸浆板、木浆板为原料,废纸及废纸浆板经水力碎浆机碎浆,经除渣和粗筛除杂后,进入纤维分级筛中,分筛得到纤维长度为2.0以上的长纤维浆、纤维长度为1.1-2.0mm的中纤维浆和纤维长度为1.1mm以下的短纤维浆,所述木浆板经过水力碎浆机碎解、高浓除渣器除杂、双盘磨打浆处理后形成木浆;
步骤二:将长纤维浆和短纤维浆按质量份数比为85:15的比例混合得到面层废纸浆,面层废纸浆与木浆再按质量份数比为50:50的比例混合,混合均匀,得到木浆面层用浆,将短纤维浆和中纤维浆按质量份数比为83:17的比例混合均匀后,得到芯层用浆,将中纤维浆和短纤维浆按质量份数比为82:18的比例混合均匀后,得到下底层用浆;
步骤三:在步骤二中得到的面层用浆、芯层用浆、下底层用浆添加浆内施胶剂、增强剂、抗水剂,将面层用浆、芯层用浆和底层用浆经造纸机成型网部滤水抄造、复合,经压榨脱水、烘干后形成含有面层1、芯层31和下底层32的纸页;其中,增强剂的添加量为每吨造纸绝干浆20kg,浆内抗水剂的添加量为每吨造纸绝干浆80kg;
步骤四:将表面施胶剂分别施胶至面层1和下底层32表面,分别形成正面施胶层4和背面施胶层5;
步骤五:烘干、压光、卷取得到成品纸板。
其中,浆内施胶剂包括质量比烷基烯酮二聚物:淀粉:羧甲基纤维素钠为2:7:1;增强剂包括聚丙烯酰胺;浆内抗水剂包括质量份数分别为5份的十二烯基丁二酸酐、15份的氯化锌和30份的聚酰胺环氧氯丙烷树脂;表面施胶剂包括10份的三聚氰胺甲醛树脂和4份的石蜡。
对比例7
本对比例提供一种高耐破多层牛皮箱板纸制备方法,如图1所示,包括以下步骤:
步骤一:以废纸及废纸浆板、木浆板为原料,废纸及废纸浆板经水力碎浆机碎浆,经除渣和粗筛除杂后,进入纤维分级筛中,分筛得到纤维长度为2.0以上的长纤维浆、纤维长度为1.1-2.0mm的中纤维浆和纤维长度为1.1mm以下的短纤维浆,所述木浆板经过水力碎浆机碎解、高浓除渣器除杂、双盘磨打浆处理后形成木浆;
步骤二:将长纤维浆和短纤维浆按质量份数比为85:15的比例混合得到面层废纸浆,面层废纸浆与木浆再按质量份数比为50:50的比例混合,混合均匀,得到木浆面层用浆,将短纤维浆和中纤维浆按质量份数比为83:17的比例混合均匀后,得到芯层用浆,将中纤维浆和短纤维浆按质量份数比为82:18的比例混合均匀后,得到下底层用浆;
步骤三:在步骤二中得到的面层用浆、芯层用浆、下底层用浆添加浆内施胶剂、增强剂、抗水剂,将面层用浆、芯层用浆和底层用浆经造纸机成型网部滤水抄造、复合,经压榨脱水、烘干后形成含有面层1、芯层31和下底层32的纸页;其中,增强剂的添加量为每吨造纸绝干浆20kg,浆内抗水剂的添加量为每吨造纸绝干浆80kg;
步骤四:将表面施胶剂分别施胶至面层1和下底层32表面,分别形成正面施胶层4和背面施胶层5;
步骤五:烘干、压光、卷取得到成品纸板。
其中,浆内施胶剂包括质量比烷基烯酮二聚物:淀粉:羧甲基纤维素钠为2:7:1;增强剂包括聚丙烯酰胺;浆内抗水剂包括质量份数分别为5份的十二烯基丁二酸酐、15份的氯化锌和30份的聚酰胺环氧氯丙烷树脂;表面施胶剂包括10份的三聚氰胺甲醛树脂和15份的松香胶。
对比例8
本对比例提供一种高耐破多层牛皮箱板纸制备方法,如图2所示,包括以下步骤:
步骤一:以以废纸及废纸浆板为原料,水力碎浆机碎浆,经除渣和粗筛除杂后,得到造纸原浆;
步骤二:向造纸原浆中加入增强剂、抗水剂,混合均匀,其中,增强剂的添加量为每吨造纸绝干浆20kg,浆内抗水剂的添加量为每吨造纸绝干浆80kg;
步骤三:将步骤二中得到的造纸原浆经造纸机成型网部滤水抄造,形成湿纸页,压榨脱水后得到纸板主体6;
步骤四:将表面施胶剂分别施胶至纸板主体6的两个表面,分别形成正面施胶层4和背面施胶层5;
步骤五:烘干、压光、卷取得到成品牛皮箱板纸。
其中,增强剂包括聚丙烯酰胺;浆内抗水剂包括质量份数分别为5份的十二烯基丁二酸酐、15份的氯化锌和30份的聚酰胺环氧氯丙烷树脂;表面施胶剂包括10份的三聚氰胺甲醛树脂、15份的松香胶和4份的石蜡。
对比例9
本实施例提供一种高耐破多层牛皮箱板纸制备方法,如图1所示,包括以下步骤:
步骤一:以废纸及废纸浆板、木浆板为原料,废纸及废纸浆板经水力碎浆机碎浆,经除渣和粗筛除杂后,进入纤维分级筛中,分筛得到纤维长度为2.0以上的长纤维浆、纤维长度为1.1-2.0mm的中纤维浆和纤维长度为1.1mm以下的短纤维浆,所述木浆板经过水力碎浆机碎解、高浓除渣器除杂、双盘磨打浆处理后形成木浆;
步骤二:将长纤维浆和短纤维浆按质量份数比为85:15的比例混合得到面层废纸浆,面层废纸浆与木浆再按质量份数比为50:50的比例混合,混合均匀,得到木浆面层用浆,将短纤维浆和中纤维浆按质量份数比为83:17的比例混合均匀后,得到芯层用浆,将中纤维浆和短纤维浆按质量份数比为82:18的比例混合均匀后,得到下底层用浆;
步骤三:在步骤二中得到的面层用浆、芯层用浆、下底层用浆添加浆内施胶剂、增强剂、抗水剂,将面层用浆、芯层用浆和底层用浆经造纸机成型网部滤水抄造、复合,经压榨脱水、烘干后形成含有面层1、芯层31和下底层32的纸页;其中,增强剂的添加量为每吨造纸绝干浆20kg,浆内抗水剂的添加量为每吨造纸绝干浆80kg;
步骤四:将表面施胶剂分别施胶至面层1和下底层32表面,分别形成正面施胶层4和背面施胶层5;
步骤五:烘干、压光、卷取得到成品纸板。
其中,浆内施胶剂为淀粉;增强剂包括聚丙烯酰胺;浆内抗水剂包括质量份数分别为5份的十二烯基丁二酸酐、15份的氯化锌和30份的聚酰胺环氧氯丙烷树脂;表面施胶剂包括10份的三聚氰胺甲醛树脂、15份的松香胶和4份的石蜡。
应用例1
取同一批号的废纸,分为等质量的10份,分别通过实施例3、对比例1、对比例2、对比例3、对比例4、对比例5、对比例6、对比例7、对比例8和对比例9中记载的方法(每一实验组中浆内施胶剂所用的总质量均相等),制得纸板1-10,在温度为23±1℃,相对湿度为50±2%的条件下,分别检测纸板1-10的定量、紧度、耐破指数、横向耐折度、横向环压指数、正面吸水性和层间结合强度,结果如下表所示:
结果分析:对比纸板1和纸板2-10的检测数据可知,本发明提供的制备方法所制得的纸板具有更优异的性能,达到了本发明的预期目的。
本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代,但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。
尽管本文较多地使用了面层1、底层3、芯层31、下底层32、正面施胶层4、背面施胶层5、纸板主体6等术语,但并不排除使用其它术语的可能性。使用这些术语仅仅是为了更方便地描述和解释本发明的本质;把它们解释成任何一种附加的限制都是与本发明精神相违背的。
Claims (6)
1.一种高耐破多层牛皮箱板纸的制备方法,其特征在于,包括以下步骤:
步骤一:以废纸或废纸浆板、木浆板为原料,废纸或废纸浆板经水力碎浆机碎浆,经除渣和粗筛除杂后,进入纤维分级筛中,分筛得到纤维长度为2.0mm以上的长纤维浆、纤维长度为1.1-2.0mm的中纤维浆和纤维长度为1.1mm以下的短纤维浆,所述木浆板经过水力碎浆机碎解、高浓除渣器除杂、双盘磨打浆处理后形成木浆;
步骤二:将长纤维浆和短纤维浆按质量份数比为80-90:10-20的比例混合得到面层废纸浆,面层废纸浆与木浆再按质量份数比为0-90:10-100的比例混合,混合均匀,得到面层用浆;将短纤维浆和中纤维浆按质量份数比为80-85:15-20的比例混合均匀后,得到芯层用浆,将中纤维浆和短纤维浆按质量份数比为80-85:15-20的比例混合均匀后,得到下底层用浆;
步骤三:在步骤二中得到的面层用浆、芯层用浆、下底层用浆添加浆内施胶剂、增强剂、抗水剂,将面层用浆、芯层用浆和底层用浆经造纸机成型网部滤水抄造、复合,经压榨脱水、烘干后形成含有面层(1)、芯层(31)和下底层(32)的纸页;
步骤四:将表面施胶剂分别施胶至面层(1)和下底层(32)表面,分别形成正面施胶层(4)和背面施胶层(5);
步骤五:烘干、压光、卷取、复卷得到成品纸;
浆内施胶剂包括质量比烷基烯酮二聚物:淀粉:羧甲基纤维素钠为2:7:1。
2.如权利要求1所述的高耐破多层牛皮箱板纸的制备方法,其特征在于:所述增强剂的添加量为每吨造纸绝干浆20-60kg,增强剂包括聚丙烯酰胺;所述浆内抗水剂的添加量为每吨造纸绝干浆40-80kg。
3.如权利要求1所述的高耐破多层牛皮箱板纸的制备方法,其特征在于:所述浆内抗水剂包括质量份数分别为2-8份的十二烯基丁二酸酐、10-20份的氯化锌和20-40份的聚酰胺环氧氯丙烷树脂。
4.如权利要求3所述的高耐破多层牛皮箱板纸的制备方法,其特征在于:所述浆内抗水剂包括质量份数分别为5份的十二烯基丁二酸酐、15份的氯化锌和30份的聚酰胺环氧氯丙烷树脂。
5.如权利要求1所述的高耐破多层牛皮箱板纸的制备方法,其特征在于:所述表面施胶剂包括5-15份的三聚氰胺甲醛树脂、10-20份的松香胶和2-6份的石蜡。
6.如权利要求5所述的高耐破多层牛皮箱板纸的制备方法,其特征在于:所述表面施胶剂包括10份的三聚氰胺甲醛树脂、15份的松香胶和4份的石蜡。
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