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Composite film applied to explosive package and preparation method of composite film

A composite film and explosive technology, which is applied in household packaging, applications, packaging, etc., can solve the problem of easy spread of the damaged composite film layer, and achieve the effects of reducing the spreading effect, prolonging the effective service life, and resisting impact and chemical corrosion

Inactive Publication Date: 2020-02-18
JINGMEN TIANHUA PACKING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a composite film used in explosive packaging and its preparation method, which is used to solve the problem that the damage of the composite film layer is very easy to spread in the prior art

Method used

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  • Composite film applied to explosive package and preparation method of composite film
  • Composite film applied to explosive package and preparation method of composite film

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preparation example Construction

[0020] see figure 1 , figure 1 It is a process flow diagram of an embodiment of the composite film preparation method applied to explosive packaging in the present invention. For the second solution provided by the present invention, a composite film preparation method applied to explosive packaging, the steps include: the middle film layer Preparation S1, composite adhesive preparation S2, primary coating and bonding S3, primary curing S4, secondary coating and bonding S5, secondary curing S6 and winding S7; the composite film preparation method applied to explosive packaging is used to prepare The composite film applied to explosive packaging in the aforementioned first solution, so the composite films applied to explosive packaging in the two solutions are consistent in structure and function.

[0021] Specifically, each step in the above-mentioned method for preparing a composite film applied to explosive packaging is described in detail. The step S1 of preparing the mid...

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Abstract

The invention discloses a composite film applied to an explosive package and a preparation method of the composite film. The composite film applied to the explosive package comprises an upper film layer, a middle film layer and a lower film layer, wherein the upper film layer and the lower film layer are both PE films and are bonded to the two sides of the middle film layer by coating a compositebinder; and the middle film layer is made by the adoption of an electrostatic spinning method after hot-melting of PET, PS and SEMS. According to the composite film, by attaching the two PE film layers to the PET-based nanofiber film layer, the composite film reserves the toughness, impact resistance, chemical corrosion resistance and other advantages of a PET thin film, meanwhile, the spreading effect of the composite film after damage is remarkably lowered, and the effective service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of explosive packaging films, in particular to a composite film applied to explosive packaging and a preparation method thereof. Background technique [0002] Explosives are substances that can burn violently in a very short period of time, and are substances that explode by their own energy under the action of certain external energy. Explosives have unique chemical properties, and the packaging of explosives needs to be regulated by special standards. There is a national standard "GB14493-2003 Industrial Explosives Packaging". The trend of anti-leakage and high mechanical properties is developing. [0003] Chinese patent CN101633422A discloses a composite film for explosive packaging, which is composed of an upper film, a middle film and a lower film of the explosive packaging composite film co-extruded; Ethylene, the lower film is composed of low-density polyethylene, linear low-density polyethylene, me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/02B32B27/12B32B27/32B32B27/36B32B7/12B32B27/30B29D7/01
CPCB29D7/01B32B5/02B32B7/12B32B27/08B32B27/12B32B27/32B32B2262/023B32B2262/0276B32B2262/14B32B2307/558B32B2307/714B32B2439/00
Inventor 李沪军刘丰华张健冯希严程程吴国峰伍华胡晶王娟许杨
Owner JINGMEN TIANHUA PACKING
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