CN104416994A - 一种用于焊条盒热收缩包装膜 - Google Patents

一种用于焊条盒热收缩包装膜 Download PDF

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CN104416994A
CN104416994A CN201310390219.2A CN201310390219A CN104416994A CN 104416994 A CN104416994 A CN 104416994A CN 201310390219 A CN201310390219 A CN 201310390219A CN 104416994 A CN104416994 A CN 104416994A
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rod box
packaging film
resin
welding rod
sealing layer
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刘建
李力
柏涛
马涛
张雪庚
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TIANJIN MINGTANG ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
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TIANJIN MINGTANG ENVIRONMENTAL PROTECTION TECHNOLOGY Co Ltd
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Priority to CN201310390219.2A priority Critical patent/CN104416994A/zh
Publication of CN104416994A publication Critical patent/CN104416994A/zh
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    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/40—Applications of laminates for particular packaging purposes
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • 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
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • 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
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/31—Heat sealable
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7246—Water vapor barrier
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/73—Hydrophobic
    • 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
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • 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
    • B32B2323/00—Polyalkenes
    • B32B2323/04—Polyethylene
    • B32B2323/046—LDPE, i.e. low density polyethylene
    • 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
    • B32B2439/00—Containers; Receptacles

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wrappers (AREA)
  • Laminated Bodies (AREA)

Abstract

本发明提供一种用于焊条盒热收缩包装膜，包括与焊条盒接触的热封层、外层、连接所述外层和热封层的中间层，所述热封层包含树脂a和树脂b，树脂a系乙烯与丙烯、丁烯的共聚物，树脂b系LLDPE、POP、VLDPE中的一种或者多种混合物，所述外层包括乙烯-丙烯共聚物和线性低密度聚乙烯、茂金属聚乙烯中一种或者一种以上的混合物，所述中间层包含90wt%的VDC-MA共聚物和10wt%的环氧大豆油增塑剂所组成的混合物。本发明的有益效果是：有效的解决了收缩率和阻隔性的问题，具有优异的热封性能，较好适用于焊条盒的防潮塑料膜的包装。

Description

一种用于焊条盒热收缩包装膜
技术领域
本发明属于包装膜领域，尤其是涉及一种用于焊条盒热收缩包装膜。 
背景技术
随着技术的进步，人们对于包装材料提出了更高的性能要求。目前，多层热收缩包装膜作为一种性能优异的包装材料已经被广泛用于工业品商品的包装。与传统包装材料相比，多层热收缩膜具有很多优点：例如，热收缩膜在热收缩后可以对商品达到“贴体”包装的效果，因此可以使商品保持自有外观形状，使商品外观美观并且节约空间；还能够很好的保证焊条盒的密封、防潮。目前市场上，大部分焊条包装都采用多层共挤尼龙收缩膜，一方面塑料膜在低温时较脆，导致低温流通和存放时破袋率较高，另一方面也会导致焊条受潮、生锈，给工作人员带来原料浪费。 
发明内容
本发明要解决的问题是提供一种热收缩包装膜，尤其适合用于焊条盒的包装的热收缩膜。 
为解决上述技术问题，本发明采用的技术方案是：一种用于焊条盒热收缩包装膜，包括与焊条盒接触的热封层、外层、连接所述外层和热封层的中间层，所述热封层包含树脂a和树脂b，树脂a系乙烯与丙烯、丁烯的共聚物，树脂b系LLDPE、POP、VLDPE中的一种或者多种混合物，所述外层包括乙烯-丙烯共聚物和线性低密度聚乙烯、茂金属聚乙烯中一种或者一种以上的混合物，所述中间层为90wt%的VDC-MA共聚物和10wt%的环氧大豆油增塑剂所组成的混合物。 
所述中间层的厚度范围是5～8微米。 
所述外层的厚度范围为7～11微米。 
所述热封层的厚度范围是12～17微米。 
本发明具有的优点和积极效果是：由于采用上述技术方案，有效的解决了塑料膜收缩率、阻隔性、低温下较脆的问题，具有优异的热封、防潮的性能，较好适用于焊条盒的防潮塑料膜的包装。 
附图说明
图1是本发明的原理示意图 
图中： 
1、外层    2、中间层    3、热封层 
具体实施方式
如图1所示，本发明一种用于焊条盒热收缩包装膜，包括与焊条盒接触的热封层3、外层1、连接所述外层和热封层的中间层2，热封层3包含树脂a和树脂b，树脂a系乙烯与丙烯、丁烯的共聚物，树脂b系LLDPE、POP、VLDPE中的一种或者多种混合物，外层1包括乙烯-丙烯共聚物和线性低密度聚乙烯、茂金属聚乙烯中一种或者一种以上的混合物，中间层2为90wt%的VDC-MA共聚物和10wt%的环氧大豆油增塑剂所组成的混合物。外层1的厚度范围为7～11微米，中间层2的厚度范围是5～8微米，热封层3的厚度范围是12～17微米。 
本发明以乙烯-丙烯共聚物为外层1的主体，同时可以以其他热塑性聚烯烃为外层1的主体。乙烯-丙烯共聚物的弹性体在低温时所含的乙烯成份充分发挥其作用，因而在低温即-40℃时不会出现脆化现象。所述乙烯-丙烯共聚物中乙烯-丙烯弹性体的摩尔含量优选为10％～80％，更优选为45％～75％；乙烯-丙烯共聚物包括10～50mol％的乙烯聚合单元和50～90mol％的丙烯聚合单元，优选包括20～30mol％的乙烯聚合单元和70～80mol％的丙烯聚合单元，外层1的厚度范围为7～11微米。 
按按照本发明，中间层2由90wt%的VDC-MA共聚物和10wt%的环氧 大豆油增塑剂所组成的混合物，中间层2的优选的厚度范围是5～8微米。 
照本发明，热封层3中的树脂a和树脂b组合可以提高低温热封性能，其耐低温和抗潮性能优异，与选自增强型中乙烯-丙烯共聚物和线性低密度聚乙烯、茂金属聚乙烯一种或一种以上的混合物配合使用时，保证了热封层的力学性能。例如，树脂a和树脂b配合使用作为热封层时，该热封层具有良好的收缩性和可热封性能。70kg的乙烯-丁烯共聚物和29kg的LLDPE，乙烯-丁烯的密度为0.89g/L，LLDPE的密度为0.918g/L，1kg加工助剂，热封层3厚度优选为12微米～17微米。 
以上对本发明的一个实施例进行了详细说明，但所述内容仅为本发明的较佳实施例，不能被认为用于限定本发明的实施范围。凡依本发明申请范围所作的均等变化与改进等，均应仍归属于本发明的专利涵盖范围之内。 

Claims (4)

1.一种用于焊条盒热收缩包装膜，其特征在于：包括与焊条盒接触的热封层、外层、连接所述外层和热封层的中间层，所述热封层包含树脂a和树脂b，树脂a系乙烯与丙烯、丁烯的共聚物，树脂b系LLDPE、POP、VLDPE中的一种或者多种混合物，所述外层包括乙烯-丙烯共聚物和线性低密度聚乙烯、茂金属聚乙烯中一种或者一种以上的混合物，所述中间层为90wt%的VDC-MA共聚物和10wt%的环氧大豆油增塑剂所组成的混合物。
2.根据权利要求1所述的一种用于焊条盒热收缩包装膜，其特征在于：所述中间层的厚度范围是5～8微米。
3.根据权利要求2所述的一种用于焊条盒热收缩包装膜，其特征在于：所述外层的厚度范围为7～11微米。
4.根据权利要求3所述的一种用于焊条盒热收缩包装膜，其特征在于：所述热封层的厚度范围是12～17微米。
CN201310390219.2A 2013-08-30 2013-08-30 一种用于焊条盒热收缩包装膜 Pending CN104416994A (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110328933A (zh) * 2019-07-26 2019-10-15 江阴苏达汇诚复合材料有限公司 一种用于化妆品盖圈的易揭型铝塑盖膜和生产工艺及应用
US10793344B2 (en) 2018-04-06 2020-10-06 Lincoln Global, Inc. Hermetically sealed pouch for elongated objects

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10793344B2 (en) 2018-04-06 2020-10-06 Lincoln Global, Inc. Hermetically sealed pouch for elongated objects
CN110328933A (zh) * 2019-07-26 2019-10-15 江阴苏达汇诚复合材料有限公司 一种用于化妆品盖圈的易揭型铝塑盖膜和生产工艺及应用
CN110328933B (zh) * 2019-07-26 2023-08-22 江阴苏达汇诚复合材料有限公司 一种用于化妆品盖圈的易揭型铝塑盖膜和生产工艺及应用

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Application publication date: 20150318