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Manufacturing method of vacuum cooking and packaging bag for food

A production method and packaging bag technology are applied to the production field of food vacuum cooking packaging bags, which can solve the problems of short shelf life, delamination, and staleness, and achieve the effects of improving toughness strength and peel strength, good air flow, and prolonging shelf life.

Inactive Publication Date: 2010-09-22
赵秀雄
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the shelf life of cooked food stored in ordinary vacuum packaging bags is very short, generally no more than 180 days, otherwise, it will lead to the proliferation of bacteria in the food packaging bags, resulting in food deterioration and odor, directly affecting the health of consumers
Ordinary vacuum packaging bags will delaminate and wrinkle when the temperature exceeds 121°C. When used in food vacuum packaging, it is easy to cause air leakage in the packaging bag, and the food in the bag will deteriorate due to loose packaging.

Method used

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  • Manufacturing method of vacuum cooking and packaging bag for food
  • Manufacturing method of vacuum cooking and packaging bag for food

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The production method of high temperature resistant food vacuum cooking packaging color printing bag is to use nylon film (BOPA) with good printing performance, high temperature resistance (up to 280°C), gas barrier and air tightness and excellent toughness, and print it with 135°C high temperature cooking ink Finally, it is compounded with retort film (RCPP) which has good transparency, strong bag-making heat sealability, certain gas barrier property, and can withstand high temperature of 135°C. According to its weight ratio: nylon film (BOPA) 18-33%, ink With glue 5-10%, high temperature resistant cooking film (RCPP) 60-75%, first send the printed nylon film (BOPA) into the composite process, use polyurethane glue and solvent according to the weight of 1:1.1-1.3 Stir evenly and apply glue to the nylon film (BOPA), heat through the drying tunnel, the temperature of the drying tunnel reaches 55-75°C, so that the air will convect in the drying tunnel (the compound machine...

Embodiment 2

[0011] The method of making high-temperature-resistant vacuum cooking packaging bags first uses nylon film (BOPA) with good printing performance, high temperature resistance (up to 280 ° C), gas barrier and air tightness, and excellent toughness, and has good transparency and bag heat sealing. Retort film (RCPP) compound with strong resistance, certain gas barrier property, and high temperature resistance of 135°C, according to its weight ratio: nylon film (BOPA) 18-33%, ink and glue 5-10%, high temperature resistant retort film (RCPP) 60-75%, first send the printed nylon film (BOPA) into the composite process, use polyurethane glue and solvent according to the weight ratio of 1:1.1-1.3, stir evenly to glue the nylon film (BOPA) ), heating through the drying tunnel, the temperature of the drying tunnel reaches 55-75°C, so that the air is convected in the drying tunnel (the composite machine has an air inlet and an air exhaust outlet), and the residual solvent is discharged out ...

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Abstract

The invention relates to a manufacturing method of a vacuum cooking and packaging bag for food, which comprises the following steps: selecting and proportioning raw materials and controlling the process flow; compounding a BOPA with an RCPP; firstly, delivering the printed BOPA into a compounding process; and proportioning a polyurethane glue and a solvent by weight; stirring uniformly and gluing on the BOPA; and manufacturing and forming a bag by heating in a drying tunnel, aging at constant temperature and heat sealing. After the food is packaged in vacuum, the vacuum package can resist high-temperature cooking and sterilizing at 135 DEG C for 30 minutes, and the packaging bag can not loose or leak air, can ensure the quality of the food and prolong the preservation and quality guarantee period of the food.

Description

Technical field [0001] The invention relates to a method for making a high-temperature-resistant food vacuum cooking packaging bag. Background technique [0002] At present, the shelf life of cooked food stored in ordinary vacuum packaging bags is very short, generally no more than 180 days, otherwise, bacteria will multiply in the food packaging bags, resulting in food deterioration and taste, directly affecting the health of consumers. Ordinary vacuum packaging bags will delaminate and wrinkle when the temperature exceeds 121°C. When used in food vacuum packaging, it is easy to cause air leakage in the packaging bag, and the food in the bag will deteriorate due to loose packaging. Contents of the invention [0003] The purpose of the present invention is to provide a method for making a high-temperature-resistant food vacuum cooking packaging bag, prolong the shelf life of vacuum-packed food to 180-360 days, and enable consumers to eat safe and high-quality food. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D30/02B65D81/34B65D81/20B32B37/12B32B38/16
Inventor 赵秀雄
Owner 赵秀雄
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