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Bacteriostatic fresh-keeping packaging film and blow molding process thereof

A technology of fresh-keeping packaging and film, applied in the field of packaging film, can solve the problems of poor fresh-keeping effect, unsatisfactory antibacterial performance of packaging film, slow cooling speed, etc., to achieve good fresh-keeping effect, efficient broad-spectrum absorption and shielding, and avoid secondary The effect of pollution

Inactive Publication Date: 2022-03-18
广东中兴塑料纸类印刷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide an antibacterial and fresh-keeping packaging film and its blow molding process, which aims to solve the problems of unsatisfactory antibacterial performance, poor fresh-keeping effect and slow cooling speed during preparation of the current packaging film.

Method used

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  • Bacteriostatic fresh-keeping packaging film and blow molding process thereof
  • Bacteriostatic fresh-keeping packaging film and blow molding process thereof
  • Bacteriostatic fresh-keeping packaging film and blow molding process thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] An antibacterial and fresh-keeping packaging film, comprising the following components by mass: 30 parts of polyethylene resin, 5 parts of composite antibacterial agent, 2 parts of plasticizer, 2 parts of antioxidant and 1 part of maleic anhydride grafted compatibilizer; The composite antibacterial agent includes nitrogen-doped titanium dioxide, nano-zinc oxide, and carboxymethyl chitosan with a mass ratio of 1:2:1, and the plasticizer includes ethylene glycol, xylitol, and microbes with a mass ratio of 1.5:2:1. Crystalline cellulose, antioxidants include caffeic acid and carnosol in a mass ratio of 2.3:1.4.

[0033] The blow molding process of this antibacterial and fresh-keeping packaging film comprises the following steps:

[0034] S1, Preparation of nitrogen-doped titanium dioxide: Mix hydrogen peroxide and ammonia water in a water bath at 50-60°C, then add titanium tetrachloride, stir, react for 1-2 hours, and dry at 130°C for 4 hours , and then fired at 450°C for...

Embodiment 2

[0038] The difference with embodiment 1 is:

[0039] The antibacterial and fresh-keeping packaging film comprises the following components by mass: 48 parts of polyethylene resin, 10 parts of composite antibacterial agent, 5 parts of plasticizer, 3 parts of antioxidant and 2 parts of maleic anhydride graft compatibilizer.

[0040] The rest are the same as in Embodiment 1, and will not be repeated here.

Embodiment 3

[0042] The difference with embodiment 1 is:

[0043] The antibacterial and fresh-keeping packaging film comprises the following components by mass: 65 parts of polyethylene resin, 16 parts of composite antibacterial agent, 7 parts of plasticizer, 5 parts of antioxidant and 4 parts of maleic anhydride graft phase solvent.

[0044] The rest are the same as in Embodiment 1, and will not be repeated here.

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PUM

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Abstract

The invention relates to the technical field of packaging films, in particular to an antibacterial fresh-keeping packaging film and a blow molding process thereof, and the packaging film comprises the following components in parts by mass: 30-65 parts of polyethylene resin, 5-16 parts of a composite antibacterial agent, 2-7 parts of a plasticizer, 2-5 parts of an antioxidant and 1-4 parts of a maleic anhydride grafted compatilizer; the composite antibacterial agent is prepared from nitrogen-doped titanium dioxide, nano zinc oxide and carboxymethyl chitosan; the plasticizer comprises ethylene glycol, xylitol and microcrystalline cellulose; the antioxidant comprises caffeic acid and carnosol. Compared with the prior art, the problems that an existing packaging film is not ideal in antibacterial performance, poor in fresh-keeping effect and low in cooling speed during preparation are solved.

Description

technical field [0001] The invention relates to the technical field of packaging films, in particular to an antibacterial and fresh-keeping packaging film and a blow molding process thereof. Background technique [0002] Packaging film, as the name suggests, is a film used for packaging, specifically referring to films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins. The market share of packaging film is increasing, and it has been widely used in food, medicine, chemical industry and other fields, among which food packaging accounts for the largest proportion, which can ensure that food is free from contamination by external pollutants and is convenient Transportation and carrying can also ensure the freshness of food. [0003] However, since the packaging film is in direct contact with food, its packaging is directly imported food, so the most basic requirement of the packaging film in the food field is to meet the requirements of food...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L5/08C08L1/04C08K3/22C08K5/053C08J5/18B29C55/28B29C35/16
CPCC08J5/18B29C55/28B29C35/16C08K2003/2241C08K2003/2296C08K2201/011C08K5/053C08J2323/06C08J2405/08C08J2401/04B29C2035/1658
Inventor 林伟贤林帆胡汉振陈少彬
Owner 广东中兴塑料纸类印刷有限公司
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