Temperature-resistant sterilized aluminum foil with cover easy to tear

A technology of easy-tear cover and aluminum foil, which is applied in the field of packaging, can solve the problems of non-bacteria barrier and sterilization performance, poor temperature resistance of easy-tear cover aluminum foil, and can not be heated by microwave ovens, etc., and achieve good antibacterial and sterilization effects Effect

Inactive Publication Date: 2019-12-20
HUZHOU JINJIE IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This kind of easy-tear aluminum foil has poor temperature resistance, cannot be used for heating in microwave ovens, and does not have the properties of bacteria isolation and sterilization

Method used

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  • Temperature-resistant sterilized aluminum foil with cover easy to tear

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of temperature-resistant sterilization easy-to-tear aluminum foil, such as figure 1 As shown, it includes an aluminum foil barrier layer 1, and also includes a CPP film layer 2 arranged on one side of the aluminum foil barrier layer 1 for bonding to tinplate, and a paint protection layer 3 arranged on the other side of the aluminum foil barrier layer 1; the aluminum foil barrier layer 1 A pattern printing layer 5 is also arranged between the coating protection layer 3 .

[0024] In this embodiment, the preparation method of this temperature-resistant sterilization easy-tear aluminum foil includes the following steps:

[0025] (1) Prepare the aluminum base.

[0026] (2) Under 15V DC voltage, place the aluminum base layer in 15wt% sulfuric acid electrolyte for electrochemical oxidation, the graphite electrode is the counter electrode, the solution temperature is 18°C, the anodizing time is 40min, and the aluminum anode is prepared on the aluminum base layer Oxide...

Embodiment 2

[0031] In this embodiment, the preparation method of this temperature-resistant sterilization easy-tear aluminum foil includes the following steps:

[0032] (1) Prepare the aluminum base.

[0033] (2) Under the DC voltage of 15V, place the aluminum base layer in 15wt% sulfuric acid electrolyte for electrochemical oxidation, the graphite electrode is the counter electrode, the solution temperature is 22°C, and the anodic oxidation time is 60min, and the aluminum anode is prepared on the aluminum base layer Oxide film layer.

[0034] (3) Preparation of modified nano-silica: Superdisperse 3 g of nano-silica in deionized water, and add 100 mL of 5.5×10 -5 mol / L copper sulfate solution, stirred for 3 hours after the dropwise addition, the dispersed suspension was allowed to stand for 40 minutes, then centrifuged, filtered, washed, dried and pulverized to obtain sterilized modified nano silicon dioxide.

[0035] (4) According to parts by mass, mix 60 parts of polypropylene resin, ...

Embodiment 3

[0039] In this embodiment, the preparation method of this temperature-resistant sterilization easy-tear aluminum foil includes the following steps:

[0040] (1) Prepare the aluminum base.

[0041] (2) Under a DC voltage of 15V, place the aluminum base layer in a 15wt% sulfuric acid electrolyte for electrochemical oxidation, the graphite electrode is the counter electrode, the solution temperature is 20°C, and the anodic oxidation time is 50 minutes, and the aluminum anode is prepared on the aluminum base layer Oxide film layer.

[0042] (3) Preparation of modified nano-silica: Ultra-disperse 2.5g of nano-silica in deionized water, and drop 100mL of 5×10 -5 mol / L copper sulfate solution, stirred for 2.5 hours after the dropwise addition, and the dispersed suspension was left to stand for 35 minutes, then centrifuged, filtered, washed, dried, and pulverized to obtain sterilized modified nano-silica.

[0043] (4) According to parts by mass, mix 55 parts of polypropylene resin, ...

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Abstract

The invention relates to the technical field of packaging, in particular to temperature-resistant sterilized aluminum foil with a cover easy to tear. The temperature-resistant sterilized aluminum foilcomprises an aluminum foil barrier layer, a CPP film layer and a coating protection layer, wherein the CPP film layer is arranged on one side of the aluminum foil barrier layer and used for adheringto tinplate, and the coating protection layer is arranged on the other side of the aluminum foil barrier layer; the aluminum foil barrier layer comprises an aluminum base layer and an aluminum anodicoxidation film layer; and film material used in the CPP film layer comprises, by mass: 50-60 parts of polypropylene resin, 5-10 parts of ethyl acetate, 5-15 parts of polyamide resin, 0.5-2 parts of nano silicon dioxide, 0.1-0.2 part of a dispersing agent and 0.1-0.2 part of an antioxidant. The aluminum foil with the cover easy to tear has good high-temperature resistance and sterilization performance, is non-toxic and harmless, and can be suitable for various food packages.

Description

technical field [0001] The invention relates to the technical field of packaging, in particular to a heat-resistant sterilization easy-tear aluminum foil. Background technique [0002] In recent years, with the development of the economy, people's material life has been enriched and the pace of life has been accelerated. The food industry, which is closely related to people's life, is also developing in a more convenient, hygienic, safer and faster direction. Such as primary and secondary convenience food, Chinese and Western fast food, student meal, quick-frozen food, convenience semi-finished products, etc. Therefore, every step forward in the food industry puts forward new requirements for food packaging. Nowadays, the accelerated pace of people's life determines that the convenience of food and diet will be an irreversible trend in the development of food. [0003] With the rapid development of convenience food, the packaging form with a tinplate cover ring on the cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D77/20C09D123/12C09D7/62C09D7/65C08J5/18C08L23/12C08L77/00C08K9/02C08K3/36B32B15/20B32B15/085B32B27/32B32B27/06B32B7/12B32B33/00
CPCB32B7/12B32B15/085B32B15/20B32B27/06B32B27/32B32B33/00B32B2307/306B32B2307/7145B65D77/2024C08J5/18C08J2323/12C08J2477/00C08K2201/011C09D123/12C09D7/62C09D7/65C09D177/00C08K9/02C08K3/36
Inventor 郑水法
Owner HUZHOU JINJIE IND CO LTD
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