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Antibacterial polyester film and preparing method and application thereof

A technology of polyester film and discoloration inhibitor, which is applied in the field of antibacterial polyester film, can solve the problems of inability to exert antibacterial effect and guarantee the antibacterial function of products.

Active Publication Date: 2016-02-24
CHANGZHOU CHAMGO NANO MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

TiO 2 It is a photocatalytic antibacterial agent, which has the advantages of safety, durability, and heat resistance. However, due to the limitation of external light conditions, it cannot exert antibacterial effect in a dark environment, and the stable antibacterial function of the product cannot be guaranteed.

Method used

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  • Antibacterial polyester film and preparing method and application thereof
  • Antibacterial polyester film and preparing method and application thereof
  • Antibacterial polyester film and preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] Embodiment 1: the antibacterial polyester film preparation of silver content 1437ppm

[0107] The implementation steps of this embodiment are as follows:

[0108] A: Preparation of nano-silver elemental powder

[0109] According to the nano-silver sol prepared by Example 6 in the ZL200910091031 instruction manual, the particle size of the nano-silver particles is 16~38nm, and the concentration is the nano-silver sol of 10000ppm. The LDZ spray drying equipment produced and sold by Wuxi Dongsheng Spray Granulation Drying Machinery Factory is used to carry out the spray drying process, and then use The LQ fluidized bed airflow mill sold by Shanghai Saishan Powder Machinery Manufacturing Co., Ltd. performs airflow milling to obtain a nano-silver elemental powder;

[0110] B: Preparation of nano-silver antibacterial masterbatch

[0111] Weigh 3 parts by weight of nano-silver elemental powder, add 75 parts by weight of absolute ethanol into the SHR-10A high-speed mixer sold...

Embodiment 2

[0114] Embodiment 2: the preparation of the antibacterial polyester film of silver content 2339ppm

[0115] A: Preparation of nano-silver elemental powder

[0116] According to the nano-silver sol prepared in Example 5 in the ZL200910091031.1 instruction manual, the particle size of the nano-silver particles is 10-35nm and the concentration is 5000ppm. The nano-scale spray dryer sold by the Swiss Buchi company is used for spray-drying treatment, and then the Qingdao essence micro-powder The QLM-3 airflow milling classifier produced by Equipment Co., Ltd. is used for airflow milling to obtain a nano-silver elemental powder;

[0117] B: Preparation of nano-silver antibacterial masterbatch

[0118] Weigh 10 parts by weight of nano-silver elemental powder, add 85 parts by weight of absolute ethanol to the SHR-5A high-speed mixer sold by Zhangjiagang Chuangjia Machinery Co., Ltd., add 0.2 parts by weight of discoloration inhibitor natural hydrotalcite, 1500 rpm / min rapid stirrin...

Embodiment 3

[0121] Embodiment 3: the preparation of the antibacterial polyester film of silver content 18519ppm

[0122] A: Preparation of nano-silver elemental powder

[0123] According to the nano-silver sol prepared by Example 7 in the ZL200910091031.1 instruction manual, the particle size of the nano-silver particles is 12~30nm, and the concentration is 20000ppm. The LDZ spray drying equipment produced and sold by Wuxi Dongsheng Spray Granulation Drying Machinery Factory is used to carry out the spray drying process. Then use the LQ fluidized bed airflow mill sold by Shanghai Saishan Powder Machinery Manufacturing Co., Ltd. to carry out airflow pulverization to obtain a nano silver elemental powder;

[0124] B: Preparation of nano-silver antibacterial masterbatch

[0125] Weigh 20 parts by weight of nano-silver elemental powder, add 90 parts by weight of absolute ethanol into the SHR-10A high-speed mixer sold by Zhangjiagang Chuangjia Machinery Co., Ltd., add 1 part by weight of disc...

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Abstract

The invention relates to an antibacterial polyester film and a preparing method and application thereof. The method comprises the steps of preparing nano-silver elementary substance powder, preparing nano-silver antibacterial master batch and preparing the nano-silver antibacterial polyester film. The antibacterial rate of the antibacterial polyester film on Escherichia coli and staphylococcus aureus is higher than or equal to 99%, the light transmittance and haze of the antibacterial polyester film are similar to those of a common PET polyester film with the same thickness, the antibacterial polyester film is nontoxic, high in safety and especially high in transparence, the technical purpose of coexistence of transparence and functionality of an existing functional film is achieved, and thus the antibacterial polyester film can be widely applied to foods, medicine, medical treatment, industry, agriculture and other mass fields closely related to the life of people, and has very broad application prospects.

Description

【Technical field】 [0001] The invention belongs to the technical field of food packaging. More specifically, the present invention relates to an antibacterial polyester film, a method for preparing the antibacterial polyester film, and an application of the antibacterial polyester film. 【Background technique】 [0002] Food itself is rich in nutrition, but it is easily contaminated by microorganisms during storage and transportation, resulting in quality degradation or even spoilage, which seriously threatens people's health and life. Film flexible packaging is widely used in food processing and supply. As people pay more attention to their own health and the requirements for food safety and quality continue to increase, food film packaging materials play an important role in preventing food corruption, prolonging the shelf life of food, and ensuring food safety. to an increasingly important role. [0003] The European Union has proposed the concept of food "active packaging...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K9/04C08K9/06C08K3/08C08J3/22C08J5/18
CPCC08J3/226C08J5/18C08J2367/02C08J2467/02C08K2201/003C08K2201/011C08L67/02C08L2201/10C08L2203/16C08L2205/025C08K9/04C08K2003/0806C08K9/06
Inventor 彭红芳李毕忠吴坤
Owner CHANGZHOU CHAMGO NANO MATERIALS
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