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Cooking film production method

A production method and cooking film technology, which are applied in chemical instruments and methods, lamination auxiliary operations, lamination and other directions, can solve the problems of poor thermal and cold physical properties of CPP cooking film, improve the physical properties of cold and heat, and reduce damage. The effect of bag odds

Inactive Publication Date: 2017-12-22
重庆松尚久德新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention proposes a method for making cooking film, which solves the problem of poor thermal and cold physical properties of CPP cooking film in the prior art

Method used

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] The retort film of the embodiment of the present invention includes: an inner film, a middle film and an outer film, and the inner film includes: a masterbatch, an opening agent and a PPA auxiliary agent (usually a series of polymerization based on fluorine-containing polymers) processing aids), the three are mixed in a mass ratio of 100:3:0.5. Both the middle layer film and the outer layer film include. The masterbatch and PPA additives are mixed at a mass...

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Abstract

The invention relates to the technical field of food packaging materials and discloses a cooking film. The cooking film comprises an inner-layer film, a middle-layer film and an outer-layer film. The inner-layer film comprises a master batch, an antiblocking agent and a PPA assistant. The master batch, the antiblocking agent and the PPA assistant are mixed according to the mass ratio of 100:3:0.5. The middle-layer film and the outer-layer film each comprise a master batch and a PPA assistant, wherein the master batch and the PPA assistant are mixed according to the mass ratio of 100:0.5. The master batches of the inner-layer film, the middle-layer film and the outer-layer film each comprise HDPE, LDPE, LLDPE and MVLDPE, wherein HDPE, LDPE, LLDPE and MVLDPE are mixed according to the mass percentage of 5%:10%:40%:45%. The cooking film comprises the special material components. The cold and hot physical performance of the cooking film is improved, and the bag breakage probability in the refrigeration or high-temperature heat-seal process is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of food packaging materials, in particular to a method for making a cooking film. Background technique [0002] At present, most of the high-temperature cooking films used in the food packaging industry are CPP (polypropylene) high-temperature cooking films. Due to the physical properties of polypropylene raw materials, the physical properties of CPP cooking films in high-temperature cooking packaging are insufficient. The problems that are often encountered are: the packaging bag is brittle, especially after refrigeration, the rate of bag breakage due to brittleness is above 10%. The heat-sealing performance of traditional CPP high-temperature retort film is limited by the unidirectional stretch of the raw material properties, and the side-sealed bag is prone to broken bags after bag making and packaging. In addition, due to the high hardness of the CPP raw material, the forming film is hard, and the produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/32B32B27/18B32B37/15B32B38/18
CPCB32B27/18B32B27/32B32B37/153B32B38/18B32B2250/03B32B2250/242B32B2307/30B32B2439/70
Inventor 岳永国
Owner 重庆松尚久德新材料有限公司
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