CN203019771U - Pvdc复合膜 - Google Patents

Pvdc复合膜 Download PDF

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Publication number
CN203019771U
CN203019771U CN 201220654117 CN201220654117U CN203019771U CN 203019771 U CN203019771 U CN 203019771U CN 201220654117 CN201220654117 CN 201220654117 CN 201220654117 U CN201220654117 U CN 201220654117U CN 203019771 U CN203019771 U CN 203019771U
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China
Prior art keywords
pvdc
layer
composite membrane
basic unit
base layer
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Expired - Lifetime
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CN 201220654117
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English (en)
Inventor
高继东
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SHANTOU FANGDA INNOVATIVE TECHNOLOGY Co Ltd
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SHANTOU FANGDA INNOVATIVE TECHNOLOGY Co Ltd
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Priority to CN 201220654117 priority Critical patent/CN203019771U/zh
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Publication of CN203019771U publication Critical patent/CN203019771U/zh
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Abstract

本实用新型实施例公开了提供一种PVDC复合膜,包括基层、覆盖于基层上的PVDC层,PVDC层上涂布冷封胶,在所述PVDC层与所述基层之间有水性光油层。采用本实用新型制得的PVDC复合膜,其与基层结合力强,成膜品质好的高阻隔性复合膜。

Description

PVDC复合膜
技术领域
本发明涉及一种包装膜,尤其涉及一种PVDC复合膜。
背景技术
各式各样的商品都有包装,或用纸箱、或用金属、或用塑料板材,也有很多采用薄膜,薄膜包装多用于食品、药品,药品的包装也常用塑料泡罩及铝箔进行包装,然而铝箔一来价格昂贵成本高,二来质地较脆,容易破碎,使药品受潮、氧化、变质。
用薄膜对食品和药品进行包装具有成本低、隔离水分和空气性能好以及包装持久性好的特点,然而用薄膜包装时对薄膜封口往往需要热封,加热封口时包装内的食品、药品受热容易变质,使药效丧失,这带来了很大的弊端,在包装膜中PVDC是阻隔性能最佳的阻隔材料,采用PVDC作为阻隔层可最有效地起到阻隔水汽及空气的作用,然而PVDC在涂布过程中存在品质难以控制,与纸张基层难以结合,干燥时容易出现泡孔的缺点,影响了阻隔效果。
发明内容
本发明实施例所要解决的技术问题在于,提供一种PVDC复合膜,包括基层、覆盖于基层上的PVDC层,PVDC层上涂布冷封胶,在所述PVDC层与所述基层之间有水性光油层。
本发明还公布了一种制备高阻隔复合膜的方法,包括:
(1)将PVDC溶液高温水性化;
(2)将水性化后的PVDC溶液涂布在水性光油层上;
(3)适当降温使PVDC溶液稳定;
(4)快速降低温度是PVDC溶液层瞬间冷却成膜。
实施本发明实施例,具有如下有益效果:
采用本发明制得的PVDC复合膜,其与基层结合力强,成膜品质好的高阻隔性复合膜。
附图说明
图1是本发明PVDC复合膜结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面将结合附图对本发明作进一步地详细描述。
如图1所示,一种PVDC复合膜,包括基层1、覆盖于基层上的PVDC层2,PVDC层上涂布冷封胶3,在所述PVDC层与所述基层之间有水性光油层4。
以上所揭露的仅为本发明一种较佳实施例而已,当然不能以此来限定本发明之权利范围,因此依本发明权利要求所作的等同变化,仍属本发明所涵盖的范围。

Claims (1)

1.一种PVDC复合膜,包括基层、覆盖于基层上的PVDC层,PVDC层上涂布冷封胶,其特征在于,在所述PVDC层与所述基层之间有水性光油层。 
CN 201220654117 2012-12-03 2012-12-03 Pvdc复合膜 Expired - Lifetime CN203019771U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220654117 CN203019771U (zh) 2012-12-03 2012-12-03 Pvdc复合膜

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220654117 CN203019771U (zh) 2012-12-03 2012-12-03 Pvdc复合膜

Publications (1)

Publication Number Publication Date
CN203019771U true CN203019771U (zh) 2013-06-26

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CN 201220654117 Expired - Lifetime CN203019771U (zh) 2012-12-03 2012-12-03 Pvdc复合膜

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CN (1) CN203019771U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105365313A (zh) * 2014-08-26 2016-03-02 丹东全德高科技包装有限公司 Pp/eva/pvdc/eva/pe 5层共挤拉伸膜

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105365313A (zh) * 2014-08-26 2016-03-02 丹东全德高科技包装有限公司 Pp/eva/pvdc/eva/pe 5层共挤拉伸膜

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Granted publication date: 20130626