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Waterproof food packaging film

A technology of food packaging film and water repellent, applied in packaging, wrapping paper, biological packaging, etc., can solve the problems affecting food quality and storage stability, and achieve excellent hygienic safety, good physical and mechanical properties, and smooth heat sealing. Effect

Inactive Publication Date: 2017-10-20
中传联合(北京)国际传媒有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to the migration of moisture, the migration of oxygen and carbon dioxide gas can also seriously affect the quality and storage stability of food

Method used

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  • Waterproof food packaging film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] PET layer raw materials (parts by weight): 360 parts of PET, 100 parts of thermoplastic starch, 2 parts of POE-g-MAH, 0.6 parts of methyl methacrylate, 0.8 parts of acetyl tributyl citrate, 2 parts of titanium dioxide, 1.2 parts of alginate , 1.8 parts of waterproofing agent.

[0029] The alginate is obtained by uniformly stirring and mixing calcium alginate, potassium alginate and sodium alginate in a mass ratio of 1:1:1.

[0030] The waterproofing agent is obtained by stirring and uniformly mixing soybean protein isolate, zein and wheat gluten in a mass ratio of 1:1:1.

[0031] The method for preparing the above-mentioned waterproof food packaging film comprises the following steps:

[0032] (1) Dry the PET at 150°C in a vacuum oven for 4 hours;

[0033] (2) Add dried PET, thermoplastic starch, POE-g-MAH, methyl methacrylate, acetyl tributyl citrate, titanium dioxide, alginate, and water repellent to the mixing mixer at a speed of 600 rpm Minute and stir for 20 min...

Embodiment 2

[0038] It is basically the same as in Example 1, except that the alginate is obtained by stirring and mixing evenly potassium alginate and sodium alginate at a mass ratio of 1:1. Obtain the waterproof food packaging film of embodiment 2.

Embodiment 3

[0040] It is basically the same as in Example 1, except that the alginate is obtained by stirring and mixing calcium alginate and sodium alginate at a mass ratio of 1:1. Obtain the waterproof food packaging film of embodiment 3.

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PUM

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Abstract

The invention discloses a waterproof food packaging film. The waterproof food packaging film comprises a surface layer, an intermediate layer and a bottom layer. The surface layer and the bottom layer are PET layers. The PET layer is prepared from 300-400 parts by weight of PET, 90-110 parts by weight of thermoplastic starch, 2-4 parts by weight of POE-g-MAH, 0.2-0.8 parts by weight of methyl methacrylate, 0.6-1.2 parts by weight of acetyl tributyl citrate, 2-4 parts by weight of titanium dioxide, 0.5-1.5 parts by weight of alginate and 0.5-2.5 parts by weight of a waterproof agent. The waterproof food packaging film has good physical and mechanical properties, good heat seal smoothness, oxidation resistance, water repellency and excellent health and safety.

Description

technical field [0001] The invention relates to a packaging film, in particular to a waterproof food packaging film. Background technique [0002] The development of food packaging film has a long history. As far back as the Han Dynasty in my country, when Zheng He sailed to the West, he had used beeswax to encapsulate fruits to delay the dehydration of the fruits. Food packaging has long been using traditional packaging materials. With the rise of green packaging, countries around the world have done a lot of research and development work on food packaging. Food packaging film refers to a layer of protective film with a porous network structure that is covered on the surface of food or the internal interface of multi-component food by wrapping, dipping, coating, and spraying. For many foods, the most important functional property of food packaging film is to prevent the migration of moisture, that is, to have moisture resistance, so as to prevent food from deteriorating ...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L3/02C08L51/06C08L5/04C08L89/00C08K5/11C08K3/22B65D65/40B32B27/36B32B27/18B32B27/06
CPCB32B27/08B32B27/18B32B27/36B32B2250/03B32B2250/244B32B2307/31B32B2307/714B32B2307/73B32B2439/70B65D65/40C08J5/18C08J2367/02C08J2489/00C08K2003/2241C08L67/02C08L2201/08C08L2203/16C08L2205/025C08L2205/035C08L3/02C08L51/06C08L5/04C08L89/00C08K5/11C08K3/22Y02A40/90Y02W90/10
Inventor 张启明
Owner 中传联合(北京)国际传媒有限公司