CN106336825A - 无缝塑编热封胶带及其制法 - Google Patents

无缝塑编热封胶带及其制法 Download PDF

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CN106336825A
CN106336825A CN201610817164.2A CN201610817164A CN106336825A CN 106336825 A CN106336825 A CN 106336825A CN 201610817164 A CN201610817164 A CN 201610817164A CN 106336825 A CN106336825 A CN 106336825A
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adhesive tape
heat sealing
bag
sealing adhesive
polymer layer
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CN106336825B (zh
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张敬尧
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Shandong Jiping New Material Co ltd
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Zibo Jiping Packaging Products Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/10—Homopolymers or copolymers of propene
    • C09J123/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/241—Polyolefin, e.g.rubber
    • C09J7/243—Ethylene or propylene polymers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Wrappers (AREA)

Abstract

一种无缝塑编热封包装袋，属于包装技术领域，包括袋体，袋体两端分别设有封口，所述封口处粘接有热封胶带，所述热封胶带包括基层以及涂覆在基层上的高分子聚合物层，所述高分子聚合物层与袋体粘接，其特征是，所述热封胶带是在200～300℃下高分子聚合物层涂布在基层上而得，其中，所述高分子聚合物层包括由聚丙烯、高熔指聚丙烯、乙烯‑醋酸乙烯共聚物和交联剂制成。本发明采用热封胶带粘接封口，无需针缝，提高了包装袋的密封强度，包装袋整体强度可达纤维撕裂程度。

Description

无缝塑编热封胶带及其制法
技术领域
本发明涉及一种无缝塑编热封胶带及其制法，属于包装技术领域。
背景技术
塑料编织袋广泛应用于肥料、化工产品、日常用品、食品等产品的包装。现有技术中，塑料编织袋的上下封口一般使用线绳缝合，其密封效果不佳，防水、防潮性能较差，并且缝合封口处拉伸负荷、抗剥离力不佳，在运输过程中容易开封，特别是在摔包过程中。另外，缝合封口的编织袋在回收过程中，必须要拆线、挑拣后才能进行，费时费力，成本较高。
为解决密封、防水防潮效果不佳的缺陷，现有技术中也有设置热熔胶层对封口粘接密封的方案。该方案可满足一定的粘接包装密封要求，其仍存在如下两种不足之处：其一，解决防水、防潮问题，现有技术包装袋的本体外面复合有一纸层，在编织袋回收时，很难将纸层和塑料分离，回收困难；其二，在低温情况下，热熔胶层容易失去粘性，造成粘接不牢，从而降低了塑料编织袋的密封以及防水防潮性能。
发明内容
本发明针对现有技术中存在的问题，提供一种低温密封性能好，可回收再利用的无缝塑编热封包装袋。
本发明具体采用的技术方案是：
一种无缝塑编热封胶带，包括基层以及涂覆在基层上的高分子聚合物层，其特征是，所述热封胶带是高分子聚合物层在200～300℃下涂布在基层上而得，所述基层的材质是PP或PE，所述高分子聚合物层包括由聚丙烯、高熔指聚丙烯、乙烯-醋酸乙烯共聚物和交联剂制成。
为增强本发明产品的耐候性，使本发明的产品具有防水防潮性能，在基层的外层还设有防水防潮塑料膜层，所述塑料膜层的材质与基层材质相同。
本发明中，高分子聚合物层包括由下述重量份的原料通过混合、挤出、造粒制得：
其中，所述交联剂是1，1-双(叔丁过氧基)-3，3，5-三甲基环己烷(BPMC)、双(叔丁过氧异丙基)苯(BIPB)、1,2-二乙烯基苯和三烯丙异氰尿酸酯按照1:1:0.2:0.2混合而成，其中，1,2-二乙烯基苯和三烯丙异氰尿酸酯助交联剂。
本发明以高熔指聚丙烯主要是为利用其流动性。
本发明中，所采用的原料均为市售商品，例如：无规聚丙烯可选用牌号为APP4或APP5的市售商品，高熔指聚丙烯可选用台塑公司生产的牌号为1600d的市售商品。
本发明中，所述热封胶带的制法，包括如下步骤：
1)混合：高分子聚合物层各种原料按比例混合
2)挤出
3)造粒
4)流延
5)涂布：所述涂布是在200～300℃下进行；
5)热合：将防水防潮塑料膜层热合在基层上；
6)分切，得热封胶带成品。
本发明的有益效果：
1、本发明的热封胶带用于塑料编织袋粘接封口，无需针缝，提高了包装袋的密封强度，包装袋整体强度可达纤维撕裂程度。
为验证本发明的效果，申请人委托山东省产品质量检验研究院对长为1米的密封胶带和三条本发明的编织袋依据GB/T 8946-2013进行了检验，检验报告编号为：PL052979-2016，检验结果如下：
序号 检验项目 单位 检验结果
1 拉伸负荷 N/50mm 916
2 剥离力 N/30mm 16.8
2、本发明绿色环保，具体表现在：1)无需拆线，直接回收，省时省力，成本低；2)本发明选用的所有材料均可回收后循环利用；3)本发明不使用有机溶剂，避免环境污染；3)本发明基层、防水防潮膜层材质与塑料编织袋材质相同，可直接回收造粒，再加工利用，无需分离不同材质，方便使用后的回收再利用。
3、本发明的高分子聚合物层粘结力强、且热合温度低(80℃-100℃左右)。
具体实施方式
一、制备热封胶带，步骤如下：
1)混合(单位：重量份)
实施例1 实施例2 实施例3
聚丙烯 10 20 30
无规聚丙烯 30 20 0
高熔指聚丙烯 30 30 40
乙烯-醋酸乙烯共聚物 5 7 8
BPMC 0.21 0.40 0.62
BIPB 0.21 0.40 0.62
1,2-二乙烯基苯 0.042 0.08 0.124
三烯丙异氰尿酸酯 0.042 0.08 0.124
2)挤出
3)造粒
4)流延
5)涂布：所述涂布是在200～300℃下进行；
5)热合：将防水防潮塑料膜层热合在基层上；
6)分切；得热封胶带成品。

Claims (5)

1.一种无缝塑编热封包装袋，包括袋体，袋体两端分别设有封口，所述封口处粘接有热封胶带，所述热封胶带包括基层以及涂覆在基层上的高分子聚合物层，所述高分子聚合物层与袋体粘接，其特征是，所述热封胶带是在200～300℃下高分子聚合物层涂布在基层上而得，其中，所述高分子聚合物层包括由聚丙烯、高熔指聚丙烯、乙烯-醋酸乙烯共聚物和交联剂制成。
2.根据权利要求1所述的无缝塑编热封包装袋，其特征是，在袋体外表面以及热封胶带基层外表面还设有防水防潮塑料膜层。
3.根据权利要求1所述的无缝塑编热封包装袋，其特征是，高分子聚合物层包括由下述重量份的原料通过混合、挤出、造粒制得：
其中，所述交联剂是1，1-双(叔丁过氧基)-3，3，5-三甲基环己烷(BPMC)、双(叔丁过氧异丙基)苯(BIPB)、1,2-二乙烯基苯和三烯丙异氰尿酸酯按照1:1:0.2:0.2混合而成。
4.根据权利要求3所述的无缝塑编热封包装袋，其特征是，所述热封胶带的制法，包括如下步骤：
1)混合：高分子聚合物层各种原料按比例混合
2)挤出
3)造粒
4)流延
5)涂布：所述涂布是在200～300℃下进行；
5)热合：将防水防潮塑料膜层热合在基层上；
6)分切，得热封胶带成品。
5.根据权利要求3所述的无缝塑编热封包装袋，其特征是，所述袋体和基层的材质相同，为PP或PE材质。
CN201610817164.2A 2016-09-12 2016-09-12 无缝塑编热封胶带及其制法 Active CN106336825B (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110604362A (zh) * 2019-09-10 2019-12-24 义乌市大利线带厂 一种智能衣的制作方法
CN112795327A (zh) * 2020-12-31 2021-05-14 泉州共盈康兴新材料科技有限公司 一种高防水缝口热封胶带及其制备工艺

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101945962A (zh) * 2008-04-28 2011-01-12 北欧化工股份公司 适用于挤压涂敷纸质基底的丙烯聚合物粘合剂组合物
CN205221429U (zh) * 2015-12-16 2016-05-11 淄博吉平包装制品有限公司 无缝塑编热封包装袋

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101945962A (zh) * 2008-04-28 2011-01-12 北欧化工股份公司 适用于挤压涂敷纸质基底的丙烯聚合物粘合剂组合物
CN205221429U (zh) * 2015-12-16 2016-05-11 淄博吉平包装制品有限公司 无缝塑编热封包装袋

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110604362A (zh) * 2019-09-10 2019-12-24 义乌市大利线带厂 一种智能衣的制作方法
CN112795327A (zh) * 2020-12-31 2021-05-14 泉州共盈康兴新材料科技有限公司 一种高防水缝口热封胶带及其制备工艺

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