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Novel biodegradable frozen product packaging film bag

A biodegradable and frozen product technology, applied in the direction of biological packaging, sustainable packaging, packaging, etc., can solve the problems of adverse impacts of human sustainable development, pollution of groundwater, marine soil, etc. Degradation effect

Pending Publication Date: 2021-06-29
XINGTAI BEIREN PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Frozen composite film bags form white pollution after being discarded, and it takes hundreds of years to disintegrate into microplastics. Microplastics pollute groundwater, oceans, and soil, and ultimately have an adverse impact on the sustainable development of human beings.

Method used

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  • Novel biodegradable frozen product packaging film bag
  • Novel biodegradable frozen product packaging film bag
  • Novel biodegradable frozen product packaging film bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A new type of biodegradable frozen product packaging film bag, the packaging film bag is composed of a degradable heat-sealing film on the outer layer and a cellulose film on the inner layer without solvents:

[0037] The degradable heat-sealing film is composed of 60% by mass of PBAT and 40% by mass of PLA;

[0038] The cellulose film is made by polymerizing 30% polyester polyol, 50% aliphatic polyester and 20% polyvinyl alcohol;

[0039] Wherein, the polyester polyol is a polymer of polycaprolactone-based polyester polyol and saturated aliphatic polyester polyol, and polycaprolactone-based polyester polyol:aliphatic polyester polyol=3:1;

[0040] Aliphatic polyesters are selected from polybutylene succinates.

[0041] The polyvinyl alcohol is a partially alcoholysed enol, and the polyvinyl alcohol is polyvinyl alcohol 17-88.

[0042] A preparation method of a novel biodegradable frozen product packaging film bag, comprising the following steps:

[0043] S1, take th...

Embodiment 2

[0072] A new type of biodegradable frozen product packaging film bag, the packaging film bag is composed of a degradable heat-sealing film on the outer layer and a cellulose film on the inner layer without solvents:

[0073] The degradable heat-sealing film is composed of 60% by mass of PBAT and 40% by mass of PLA;

[0074] The cellulose film is made by polymerizing 30% polyester polyol, 50% aliphatic polyester and 20% polyvinyl alcohol;

[0075] Among them, polyester polyol is a polymer of polycaprolactone-based polyester polyol and unsaturated aliphatic polyester polyol, and polycaprolactone-based polyester polyol: a polymer of unsaturated aliphatic polyester polyol =2:1;

[0076] Aliphatic polyesters are selected from polybutylene succinates.

[0077] The polyvinyl alcohol is a partially alcoholysed enol, and the polyvinyl alcohol is polyvinyl alcohol 17-88.

[0078] A preparation method of a novel biodegradable frozen product packaging film bag, comprising the following...

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Abstract

The invention relates to the technical field of degradable packaging film bags, in particular to a novel biodegradable frozen product packaging film bag. The packaging film bag is formed by compositing an outer-layer degradable heat sealing film and an inner-layer cellulose film in a solvent-free mode. The degradable heat sealing film is composed of PBAT with the mass ratio being 60% and PLA with the mass ratio being 40%. The cellulose film is prepared by polymerizing 30% by mass of polyester polyol, 50% by mass of aliphatic polyester and 20% by mass of polyvinyl alcohol. The problem that a freezing composite film bag is non-degradable and has great harm to the environment is solved. According to the packaging film bag, the pollution to the environment is reduced due to the characteristic of the degradable material, and meanwhile, the walking requirement of a modern packaging machine and the material freezing function requirement are met, so that the packaging film bag is suitable for application and popularization.

Description

technical field [0001] The invention relates to the technical field of degradable packaging film bags, in particular to a novel biodegradable packaging film bag for frozen products. Background technique [0002] Plastic packaging film bags are taking an increasing share in the market, and have been widely used in food, medicine, chemical industry and other fields, among which the quality of food packaging accounts for the largest proportion, such as frozen food packaging. Life brings great convenience. However, most of the packaging film bags are made of polyethylene or polypropylene materials, which are difficult to degrade in the natural environment and will have a certain impact on the environment. [0003] At present, petroleum-based materials such as PET, polyethylene, and polypropylene are used in the market for frozen composite film bags as printing films and heat-sealing films. The biggest drawback of frozen composite film bag materials is that they are not degradab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B27/18B32B27/06C08J5/18C08L67/02C08L67/04C08L67/00C08L29/04C08L67/06B65D65/40
CPCB32B27/36B32B27/18B32B27/08C08J5/18B65D65/40B32B2250/244B32B2307/7163B32B2439/06C08J2367/02C08J2467/04C08J2467/00C08J2429/04C08J2467/06Y02W90/10
Inventor 张艳清刘策张振明赵宁武圣翔
Owner XINGTAI BEIREN PACKAGING
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