CN112248586A - 一种纸塑复合袋及其制备方法 - Google Patents

一种纸塑复合袋及其制备方法 Download PDF

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CN112248586A
CN112248586A CN202010995192.XA CN202010995192A CN112248586A CN 112248586 A CN112248586 A CN 112248586A CN 202010995192 A CN202010995192 A CN 202010995192A CN 112248586 A CN112248586 A CN 112248586A
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paper
plastic composite
polypropylene
composite bag
cloth
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戴国军
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Sichuan Weikeduo Industry Co ltd
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Sichuan Weikeduo Industry Co ltd
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Abstract

本发明公开一种纸塑复合袋的制备方法，其特征在于，包括：纸层表面喷涂防火剂和防潮剂，得到基层；防静电编织布、阻燃层、聚丙烯编织布与所述基层挤出复合得到复合布；所述复合布经切割，折叠，封边、封底得到纸塑复合袋。所述制备方法的纸塑复合袋防静电效果好，阻燃、防火、防潮性能佳结构强度高、结实耐用，安全性高，适用于包装危险化学品。

Description

一种纸塑复合袋及其制备方法
技术领域
本发明涉及工业包装领域，具体涉及一种纸塑复合袋及其制备方法。
背景技术
纸塑复合袋是由塑胶与牛皮纸复合而成，广泛运用于水泥、饲料、化工、肥料等行业，是目前流行的包装材料之一。化工、肥料行业的产品多数都为危险化学品，具有易燃的性能，但现有的纸塑复合袋防火性能差，用于包装易燃的危化品时，质量安全得不到保障，同时，现有的纸塑复合袋不能有效防潮，长时间贮存危险化学品，易导致险化学品变质。
发明内容
有鉴于此，本发明提供了一种纸塑复合袋及其制备方法，所述制备方法的纸塑复合袋防静电效果好，阻燃、防火、防潮性能佳结构强度高、结实耐用，安全性高，适用于包装危险化学品。
为解决以上技术问题，本发明提供的技术方案是提供一种纸塑复合袋的制备方法，包括：
纸层表面喷涂防火剂和防潮剂，得到基层；
防静电编织布、阻燃层、聚丙烯编织布与所述基层挤出复合得到复合布；
所述复合布经切割，折叠，封边、封底得到纸塑复合袋。
优选的，所述挤出复合温度为300～350℃。
优选的，所述纸层为牛皮纸。
优选的，所述聚丙烯编织布的制备方法包括：聚丙烯熔化经流延成型得到聚丙烯薄膜；所述薄膜切割、拉伸得到聚丙烯扁丝，所述聚丙烯扁丝编织得到所述聚丙烯编织布。
优选的，所述封边、封底过程为采用热封方法。
优选的，所热封温度为180～220℃。
优选的，所述阻燃层由阻燃纤维编织而成。
优选的，所述阻燃纤维包括阻燃腈纶纤维、阻燃粘胶纤维、芳纶纤维中的一种或多种。
优选的，所述防静电编织布的制备方法包括：聚烯烃和抗静电剂混合，挤出成型得到薄膜；所述薄膜经切割、拉伸得到防静电扁丝，所述防静电扁丝是编织得到所述防静电编织布。
优选的，所述聚烯烃和所述抗静电剂重量比为(4～6)：(94～96)。
优选的，所述聚烯烃为聚乙烯或聚丙烯。
本发明还提供了一种纸塑复合袋，所述纸塑复合袋由上述制备方法制得。
本申请提供的纸塑复合袋纸层表面喷涂防火剂和防潮剂，使制得的纸塑复合袋有效避免所述纸层遇火破坏，受潮变质，防火防潮性能佳。
本申请提供的纸塑复合袋包括的所述阻燃层，避免所述纸塑复合袋包装产品时产生静电，并提高所述纸塑复合袋防静电能力和阻燃性。
本申请提供的复合布制备过程，防静电编织布、阻燃层、聚丙烯编织布与基层直接挤出复合得到复合布，所述复合布经切割，折叠，封边、封底得到的纸塑复合袋结构强度高、结实耐用。
本申请与现有技术相比，其详细说明如下：
本申请制备方法得到的纸塑复合袋防静电效果好，阻燃、防火、防潮性能佳，适用于包装危险化学品；
采用挤出复合直接制得复合布，并采用防静电编织布和聚丙烯编织布，使最终得到的纸塑复合袋，拉力强度高、结构强度高、结实耐用，安全性好，适用于包装危险化学品；
制备过程胶粘剂使用少，绿色环保；
制备方法简单，易于工业化生产。
具体实施方式
为了使本领域的技术人员更好地理解本发明的技术方案，下面结合具体实施例对本发明作进一步的详细说明。
实施例1
按如下方法制备纸塑复合袋：
(1)聚丙烯熔化经流延成型得到聚丙烯薄膜；所述薄膜切割、拉伸得到聚丙烯扁丝，所述聚丙烯扁丝编织得到聚丙烯编织布；
(2)重量比为4：96的聚乙烯和抗静电剂混合，挤出成型得到薄膜；所述薄膜经切割、拉伸得到防静电扁丝，所述防静电扁丝是编织得到防静电编织布；
(3)牛皮纸表面喷涂防火剂和防潮剂，得到基层；
(4)所述防静电编织布、所述阻燃层、所述聚丙烯编织布与所述基层300℃挤出复合得到复合布；所述阻燃层由阻燃腈纶纤维编织而成；
(5)所述复合布经切割，折叠，180～220℃热封封边、封底得到纸塑复合袋。
测定得到的所述纸塑复合袋经密度39根/100mm，经纬度38根/100mm；
测定得到所述纸塑复合袋表面电阻率为1028Ω；
测定得到所述纸塑复合袋燃烧速度为4.0cm/min；
测定得到所述纸塑复合袋耐热性85℃条件下无粘着、熔痕；
测定得到所述纸塑复合袋剥离力≥3.0N/30mm无法剥离所述纸塑复合袋；
测定得到所述纸塑复合袋耐跌落性，跌落高度1.0m,所述纸塑复合袋不破裂，包装物不漏失；
所述纸塑复合袋外观满足表1技术要求。
表1
Figure BDA0002692294390000041
实施例2
按如下方法制备纸塑复合袋：
(1)聚丙烯熔化经流延成型得到聚丙烯薄膜；所述薄膜切割、拉伸得到聚丙烯扁丝，所述聚丙烯扁丝编织得到聚丙烯编织布；
(2)重量比为5：95的聚乙烯和抗静电剂混合，挤出成型得到薄膜；所述薄膜经切割、拉伸得到防静电扁丝，所述防静电扁丝是编织得到防静电编织布；
(3)牛皮纸表面喷涂防火剂和防潮剂，得到基层；
(4)所述防静电编织布、所述阻燃层、所述聚丙烯编织布与所述基层310℃挤出复合得到复合布；所述阻燃层由阻燃粘胶纤维和芳纶纤维编织而成；
(5)所述复合布经切割，折叠，180～220℃热封封边、封底得到纸塑复合袋。
测定得到的所述纸塑复合袋经密度40根/100mm，经纬度39根/100mm；
测定得到所述纸塑复合袋表面电阻率为1026Ω；
测定得到所述纸塑复合袋燃烧速度为3.9cm/min；
测定得到所述纸塑复合袋耐热性85℃条件下无粘着、熔痕；
测定得到所述纸塑复合袋剥离力≥3.0N/30mm无法剥离所述纸塑复合袋；
测定得到所述纸塑复合袋耐跌落性，跌落高度1.0m,所述纸塑复合袋不破裂，包装物不漏失；
所述纸塑复合袋外观满足表1技术要求。
实施例3
按如下方法制备纸塑复合袋：
(1)聚丙烯熔化经流延成型得到聚丙烯薄膜；所述薄膜切割、拉伸得到聚丙烯扁丝，所述聚丙烯扁丝编织得到聚丙烯编织布；
(2)重量比为5.5：94.5的聚乙烯和抗静电剂混合，挤出成型得到薄膜；所述薄膜经切割、拉伸得到防静电扁丝，所述防静电扁丝是编织得到防静电编织布；
(3)牛皮纸表面喷涂防火剂和防潮剂，得到基层；
(4)所述防静电编织布、所述阻燃层、所述聚丙烯编织布与所述基层340℃挤出复合得到复合布；所述阻燃层由阻燃粘胶纤维编织而成；
(5)所述复合布经切割，折叠，180～220℃热封封边、封底得到纸塑复合袋。
测定得到的所述纸塑复合袋拉伸负荷：经向750N/50mm，纬向675N/50mm，缝底向344N/50mm，粘合向441N/50mm；
测定得到所述纸塑复合袋表面电阻率为1030Ω；
测定得到所述纸塑复合袋燃烧速度为4.1cm/min；
测定得到所述纸塑复合袋耐热性85℃条件下无粘着、熔痕；
测定得到所述纸塑复合袋剥离力≥3.0N/30mm无法剥离所述纸塑复合袋；
测定得到所述纸塑复合袋耐跌落性，跌落高度1.0m,所述纸塑复合袋不破裂，包装物不漏失；
所述纸塑复合袋外观满足表1技术要求。
实施例4
按如下方法制备纸塑复合袋：
(1)聚丙烯熔化经流延成型得到聚丙烯薄膜；所述薄膜切割、拉伸得到聚丙烯扁丝，所述聚丙烯扁丝编织得到聚丙烯编织布；
(2)重量比为6：94的聚乙烯和抗静电剂混合，挤出成型得到薄膜；所述薄膜经切割、拉伸得到防静电扁丝，所述防静电扁丝是编织得到防静电编织布；
(3)牛皮纸表面喷涂防火剂和防潮剂，得到基层；
(4)所述防静电编织布、所述阻燃层、所述聚丙烯编织布与所述基层340℃挤出复合得到复合布；所述阻燃层由阻燃腈纶纤维和阻燃粘胶纤维编织而成；
(5)所述复合布经切割，折叠，180～220℃热封封边、封底得到纸塑复合袋。
测定得到所述纸塑复合袋表面电阻率为1025Ω；
测定得到所述纸塑复合袋燃烧速度为3.8cm/min；
测定得到所述纸塑复合袋耐热性85℃条件下无粘着、熔痕；
测定得到所述纸塑复合袋剥离力≥3.0N/30mm无法剥离所述纸塑复合袋；
测定得到所述纸塑复合袋耐跌落性，跌落高度1.0m,所述纸塑复合袋不破裂，包装物不漏失；
所述纸塑复合袋外观满足表1技术要求。
实施例5
将实施例1～4得到的纸塑复合袋编号A～D,并在各纸塑复合袋中放置无水硫酸铜并放置于温度为30℃，空气湿度为29g水/m3的环境中，2天、4天后打开所述纸塑复合袋观察颜色，记过结果见表2.
表2
编号 2天后硫酸铜颜色 4天后硫酸铜颜色
A 白色 白色
B 白色 白色
C 白色 白色
D 白色 白色
由表2可知，本发明制备方法得到的纸塑复合袋具有较好的防潮性。
以上仅是本发明的优选实施方式，应当指出的是，上述优选实施方式不应视为对本发明的限制，本发明的保护范围应当以权利要求所限定的范围为准。对于本技术领域的普通技术人员来说，在不脱离本发明的精神和范围内，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。

Claims (10)

1.一种纸塑复合袋的制备方法，其特征在于，包括：
纸层表面喷涂防火剂和防潮剂，得到基层；
防静电编织布、阻燃层、聚丙烯编织布与所述基层挤出复合得到复合布；
所述复合布经切割，折叠，封边、封底得到纸塑复合袋。
2.根据权利要求1的制备方法，其特征在于，所述挤出复合温度为300～350℃。
3.根据权利要求1的制备方法，其特征在于，所述纸层为牛皮纸。
4.根据权利要求1的制备方法，其特征在于，所述聚丙烯编织布的制备方法包括：聚丙烯熔化经流延成型得到聚丙烯薄膜；所述薄膜切割、拉伸得到聚丙烯扁丝，所述聚丙烯扁丝编织得到所述聚丙烯编织布。
5.根据权利要求1的制备方法，其特征在于，所述封边、封底过程为采用热封方法。
6.根据权利要求1的制备方法，其特征在于，所述阻燃层由阻燃纤维编织而成。
7.根据权利要求1的制备方法，其特征在于，所述防静电编织布的制备方法包括：聚烯烃和抗静电剂混合，挤出成型得到薄膜；所述薄膜经切割、拉伸得到防静电扁丝，所述防静电扁丝是编织得到所述防静电编织布。
8.根据权利要求7的制备方法，其特征在于，所述聚烯烃和所述抗静电剂重量比为(4～6)：(94～96)。
9.根据权利要求7的制备方法，其特征在于，所述聚烯烃为聚乙烯或聚丙烯。
10.一种纸塑复合袋，其特征在于，所述纸塑复合袋由权利要求1～9中任意一项所述的制备方法制得。
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