CN107199747A - 一种复合包装膜的加工方法 - Google Patents

一种复合包装膜的加工方法 Download PDF

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CN107199747A
CN107199747A CN201710410865.9A CN201710410865A CN107199747A CN 107199747 A CN107199747 A CN 107199747A CN 201710410865 A CN201710410865 A CN 201710410865A CN 107199747 A CN107199747 A CN 107199747A
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pet
composite
film
layer
petra
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陶胜
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Wuhu City Sanshan District Green Food Industry Association
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Wuhu City Sanshan District Green Food Industry Association
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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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal 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
    • B32B15/09—Layered products comprising a layer of metal comprising metal 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 comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal 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
    • B32B15/082—Layered products comprising a layer of metal comprising metal 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 comprising vinyl resins; comprising acrylic resins
    • 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
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/582—Tearability
    • B32B2307/5825—Tear resistant
    • 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
    • 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
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable

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

Abstract

本发明提供了一种复合包装膜的加工方法，其特征在于：该复合包装膜由高聚合物层、金属复合层以及内阻隔层、外阻隔层组成。该复合包装膜的制造方法是：（1）PET12与AL20预合；（2）PET12/AL20复合材料与PETRA30预合；（3）PET12/AL20/PETRA30与EVOH混合物层复合；（4）切分成捆。有益效果：本发明采用在高阻隔复合包装膜增加了EVOH混合物层，提高了膜体本身的强度，有效克服了原有产品强度低、易撕破、折叠时易断裂的缺陷，提高了膜体的硬度，阻水、阻气性能好，并且具备了适应外部温湿度等环境状况变化的能力。

Description

一种复合包装膜的加工方法
技术领域
本发明涉及一种高阻隔复合包装膜，尤其是涉及一种复合包装膜的加工方法。
背景技术
目前，高阻隔复合包装膜由保护层、铝箔层和阻隔层组成，以往的阻隔层的材料为PVDC（聚偏二氯乙烯），其透明性、光泽性、机械强度、伸缩性、耐磨性、耐寒性和表面强度都不理想。再有铝箔层也是复合包装膜包装材料中唯一的金属箔类，包装上具有很长的应用时间，其阻水、阻气、遮光、等阻隔保护性能是其它任何包装材料所难以匹敌的，是至今尚不能完全代替的包装材料，又同时具有一定的对氧气和水蒸气的阻隔功能，而一般铝箔的延展性不佳、厚度很低、极易撕破、折叠时候易断裂、单位面积重量比较重，易产生孔眼等自身性能缺陷保护性差的问题。
发明内容
本发明的目的是提供一种复合包装膜的加工方法，解决现有的复合包装膜延展性不佳、厚度低、单位面积重量比较重、保护性能不理想的问题。
本发明解决其技术问题所采用的技术方案是：
一种复合包装膜的加工方法，其特征在于：该复合包装膜由高聚合物层、金属复合层以及内阻隔层、外阻隔层组成，所述的高聚合物层为PET12材质的聚酯膜层，所述的金属复合层为AL20材质的铝箔层，所述的外阻隔层为PETRA30的热封膜层，所述的内阻隔层为EVOH混合物层，
该复合包装膜通过以下步骤完成：
（1）PET12与AL20预合： PET12材料和AL20材料各在45℃-65℃的干燥间中干燥20－24小时，PET12与AL20之间通过加入有机胶水后，再经55℃-68℃的干燥间中干燥22－24小时；
（2）PET12/AL20复合材料与PETRA30预合：PET12/AL20复合材料在经58℃-62℃的干燥间中干燥22小时后入薄膜复合机，通过薄膜复合机冷却，用复合胶水整平压合在一起；
（3）PET12/AL20/ PETRA30与EVOH混合物层复合：PET12/AL20/ PETRA30的复合层经55℃-67℃的干燥间中干燥23－24小时后与EVOH混合物层复合，经46℃-50℃的薄膜复合机再加入醋酸乙脂胶合剂整平压合成型；
（4）切分成捆。
作为优选，所述的EVOH混合物层为聚丙烯和苯乙烯-乙烯-乙二醇酯-丁烯-苯乙烯共聚物混合物。
有益效果：本发明采用在高阻隔复合包装膜增加了EVOH混合物层，提高了膜体本身的强度，有效克服了原有产品强度低、易撕破、折叠时易断裂的缺陷，提高了膜体的硬度，阻水、阻气性能好，并且具备了适应外部温湿度等环境状况变化的能力。
具体实施方式
实施例1：
一种复合包装膜的加工方法，其特征在于：该复合包装膜由高聚合物层、金属复合层以及内阻隔层、外阻隔层组成，所述的高聚合物层为PET12材质的聚酯膜层，所述的金属复合层为AL20材质的铝箔层，所述的外阻隔层为PETRA30的热封膜层，所述的内阻隔层为EVOH混合物层；
该复合包装膜的制造方法是：
（1）PET12与AL20预合： PET12材料和AL20材料各在50℃-60℃的干燥间中干燥24小时，PET12与AL20之间通过加入有机胶水后，再经50℃-60℃的干燥间中干燥24小时；
（2）PET12/AL20复合材料与PETRA30预合：PET12/AL20复合材料在经50℃-60℃的干燥间中干燥24小时后入薄膜复合机，通过薄膜复合机冷却，用复合胶水整平压合在一起；
（3）PET12/AL20/ PETRA30与EVOH混合物层复合：PET12/AL20/ PETRA30的复合层经50℃-60℃的干燥间中干燥24小时后与EVOH混合物层复合经40℃-45℃的薄膜复合机再加入醋酸乙脂胶合剂整平压合成型；
（4）切分成捆。
具有的，所述的EVOH混合物层为聚丙烯和苯乙烯-乙烯-乙二醇酯-丁烯- 苯乙烯共聚物混合物。
以上的实施例仅仅是对本发明的优选实施方式进行描述，并非对本发明的范围进行限定，在不脱离本发明设计精神的前提下，本领域普通工程技术人员对本发明的技术方案做出的各种变形和改进，均应落入本发明的权利要求书确定的保护范围内。
本发明未涉及部分均与现有技术相同或可采用现有技术加以实现。

Claims (1)

1.一种复合包装膜的加工方法，其特征在于：该复合包装膜由高聚合物层、金属复合层以及内阻隔层、外阻隔层组成，所述的高聚合物层为PET12材质的聚酯膜层，所述的金属复合层为AL20材质的铝箔层，所述的外阻隔层为PETRA30的热封膜层，所述的内阻隔层为EVOH混合物层，
该复合包装膜通过以下步骤完成：
（1）PET12与AL20预合： PET12材料和AL20材料各在45℃-65℃的干燥间中干燥20－24小时，PET12与AL20之间通过加入有机胶水后，再经55℃-68℃的干燥间中干燥22－24小时；
（2）PET12/AL20复合材料与PETRA30预合：PET12/AL20复合材料在经58℃-62℃的干燥间中干燥22小时后入薄膜复合机，通过薄膜复合机冷却，用复合胶水整平压合在一起；
（3）PET12/AL20/ PETRA30与EVOH混合物层复合：PET12/AL20/ PETRA30的复合层经55℃-67℃的干燥间中干燥23－24小时后与EVOH混合物层复合，经46℃-50℃的薄膜复合机再加入醋酸乙脂胶合剂整平压合成型；
（4）切分成捆，得成品。
CN201710410865.9A 2017-06-04 2017-06-04 一种复合包装膜的加工方法 Pending CN107199747A (zh)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1541334A1 (en) * 2003-12-09 2005-06-15 Amcor Flexibles Europe A/S High-barrier retort laminates
CN104786626A (zh) * 2015-05-02 2015-07-22 张俊辉 高阻隔农药级复合包装膜的制造方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1541334A1 (en) * 2003-12-09 2005-06-15 Amcor Flexibles Europe A/S High-barrier retort laminates
CN104786626A (zh) * 2015-05-02 2015-07-22 张俊辉 高阻隔农药级复合包装膜的制造方法

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Application publication date: 20170926