Microwave-specific food package bag and manufacturing method thereof

A production method and packaging bag technology, which is applied in the field of food packaging bags, can solve the problems of time-consuming and laborious, unsealable packaging bags, and contamination, and achieve the effects of complete safety of components, avoiding explosions, and high strength

Active Publication Date: 2015-06-17
NINGBO HOLLY PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The current food packaging materials include paper, plastic, etc. In order to keep the food hygienic, the food packaging bags are sealed, so as to ensure that the food will not be polluted during transportation and sales. However, when most foods are heated by microwaves, they are The packaging bag cannot be sealed, because the water vapor

Method used

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  • Microwave-specific food package bag and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Making microwave special food packaging bags includes the following steps:

[0026] 1) Make the plastic packaging bag body;

[0027] 2) A plurality of ventilation holes are opened on the surface of the plastic packaging bag body, and the diameter of the ventilation holes is kept at 0.3-0.5mm;

[0028] 3) Apply the film paste on the position corresponding to the vent holes on the inner surface of the packaging bag body, and the film paste will completely cover the vent holes;

[0029] 4) Put the packaging bag coated with film slurry in the drying oven, dry at 50°C for 30 minutes, and then dry at 65°C for 10 minutes. After the film on the air hole is formed, take out the packaging bag and start food packaging;

[0030] Wherein said film slurry adopts following method to make:

[0031] 1) Mix corn starch and cross-linked starch in a ratio of 4:1, dissolve in water and adjust to starch slurry with a concentration of 25%;

[0032] 2) Adjust the pH value of 25% starch slur...

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Abstract

The invention provides a microwave-specific food package bag and a manufacturing method thereof. The manufacturing method comprises the steps that air holes are formed in a plastic package body, film brei is brushed on the air holes, and the food package bag is obtained when the film brie is dried; the manufacturing method of the film brei comprise the steps that the corn starch and the crosslinked starches are mixed according to the proportion of 4:1, and starch slurry with 25% concentration is prepared when the mixed starches dissolve in water; the PH value is adjusted; the calcium chloride solution with 3.6% concentration is added into the starch slurry, and the starch slurry is stirred and heated to 70 DEG C; the starch slurry is cooled to 45 DEG C rapidly when the starch slurry is pasted fully, and the isoamylase is added into the pasted starch slurry according to the proportion that adding 50 ug isoamylase to per g of gram of starch; stirring is conducted for 3 hours, the isoamylase with equal amount is added further, stirring is conducted for 6 hours, and power brei is prepared after filtrating through a gauze. According to the microwave-specific food package bag and the manufacturing method thereof, starch film can melt gradually under a high-temperature and high-humidity environment, so that the food package bag can ventilate automatically.

Description

technical field [0001] The invention relates to a food packaging bag, in particular to a food packaging bag which can be used for microwave heating. Background technique [0002] The current food packaging materials include paper, plastic, etc. In order to keep the food hygienic, the food packaging bags are sealed, so as to ensure that the food will not be polluted during transportation and sales. However, when most foods are heated by microwaves, they are The packaging bag cannot be sealed, because the water vapor generated by the food heating will flood into the packaging bag in large quantities, and the packaging bag needs to be opened. Although this is feasible, there is still the possibility of contamination. At the same time, when food is supplied on a large scale, it is impossible to remove each Tearing the packaging bag is time-consuming and laborious. Therefore need to develop a kind of food packaging bag that can not only keep airtightness but also direct microwav...

Claims

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Application Information

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IPC IPC(8): B65D30/02
CPCY02A40/90Y02W90/10
Inventor 戴炯军严建锋
Owner NINGBO HOLLY PRINTING
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