Unlock instant, AI-driven research and patent intelligence for your innovation.

Food packing method

A packaging method and food technology, applied in packaging, transportation packaging, transportation and packaging, etc., can solve the problems of polluted products, imperfect shape, easy adhesion or clumping of products, etc., so as to slow down biological and biochemical deterioration and avoid artificial scratching. Injury, improve the effect of shelf life

Inactive Publication Date: 2010-06-16
YANGZHOU SHIHUAI TIANYANG FOOD DEV
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The food packaged by traditional packaging methods is not beautiful in appearance and inconvenient to use; the shelf life of the product is short; the pressure inside and outside the packaging box is unbalanced, the product is easy to stick or lump, and the shape is not perfect; Composite plastics may contaminate product under temperature conditions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Food packing method
  • Food packing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A food packaging method of the present invention comprises the following steps:

[0027] Step 1: Put the packaged food into an environmentally friendly polypropylene material lunch box, and then put it into a vacuum chamber; when vacuuming, the vacuuming time is 3s, and the final vacuum pressure of the vacuum chamber is -0.08Mpa.

[0028] Step 2: evacuate the vacuum chamber;

[0029] Step 3: Place the packaging box in a sealed vacuum chamber, and fill the packaging box with nitrogen; when filling nitrogen, the nitrogen filling time is 1 second, and the nitrogen concentration is above 99%.

[0030] Step 4: Heat sealing. After electric heating around the packaging box, it is instantly covered with packaging film; when performing heat sealing, the heat sealing temperature is 164°C.

[0031] Step 5: Cutting, use a cutter mold to cut off the remaining film on the heat-sealed packaging box;

[0032] Step 6: Take out the box and take out the packaging box from the vacuum cha...

Embodiment 2

[0035] A food packaging method of the present invention comprises the following steps:

[0036] Step 1: Put the packaged food into an environmentally friendly polypropylene material lunch box, and then put it into a vacuum chamber; when vacuuming, the vacuuming time is 5s, and the final vacuum pressure of the vacuum chamber is -0.12Mpa.

[0037] Step 2: evacuate the vacuum chamber;

[0038] Step 3: Place the packaging box in a sealed vacuum chamber, and fill the packaging box with nitrogen; when filling nitrogen, the nitrogen filling time is 3 seconds, and the nitrogen concentration is above 99%.

[0039] Step 4: Heat sealing. After electric heating around the packaging box, cover it with packaging film instantly; when performing heat sealing, the heat sealing temperature is 172°C.

[0040] Step 5: Cutting, use a cutter mold to cut off the remaining film on the heat-sealed packaging box;

[0041] Step 6: Take out the box and take out the packaging box from the vacuum chamber...

Embodiment 3

[0044] A food packaging method of the present invention comprises the following steps:

[0045] Step 1: Put the packaged food into an environmentally friendly polypropylene material lunch box, and then put it into a vacuum chamber; when vacuuming, the vacuuming time is 4s, and the final vacuum pressure of the vacuum chamber is -0.1Mpa.

[0046] Step 2: evacuate the vacuum chamber;

[0047] Step 3: Place the packaging box in a sealed vacuum chamber, and fill the packaging box with nitrogen; when filling nitrogen, the nitrogen filling time is 2 seconds, and the nitrogen concentration is above 99%.

[0048] Step 4: Heat sealing. After electric heating around the packaging box, cover it with packaging film instantly; when performing heat sealing, the heat sealing temperature is 170°C.

[0049] Step 5: Cutting, use a cutter mold to cut off the remaining film on the heat-sealed packaging box;

[0050] Step 6: Take out the box and take out the packaging box from the vacuum chamber;...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a food packing method which comprises the following steps: (1) putting the food to be packed into an environmental-protection PPE food box, putting in a vacuum chamber; (2) vacuumizing the vacuum chamber; (3) putting the packing box in the sealed vacuum chamber, and filling nitrogen into the packing box; (4) heat-sealing: instantly covering and sealing with a packing film after electrically heating the periphery of the packing box; (5) cutting: cutting off the remaining film on the heat-sealed packing box by using a cutter die; (6) taking the packing box out of the vacuum chamber; (7) tightly pressing the PPE packing cover, and taking the packing box out of the vacuum chamber, thereby completing the packing. The packed product has the advantages of beautiful appearance and convenient operation.

Description

technical field [0001] The invention relates to a packaging method, in particular to a food packaging method. Background technique [0002] With the advancement of science and technology, the packaging of food is becoming more and more perfect. In order to prolong the shelf life of food, major food manufacturers have adopted vacuum packaging for food. The traditional vacuum packaging is to place the packaging box in a composite plastic packaging bag. Then vacuum it. The food packaged by traditional packaging methods is not beautiful in appearance and inconvenient to use; the shelf life of the product is short; the pressure inside and outside the packaging box is unbalanced, the product is easy to stick or lump, and the shape is not perfect; Under temperature conditions, composite plastics may contaminate the product. Contents of the invention [0003] The technical problem solved by the invention is to provide a safe and environment-friendly food packaging method. [00...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B65B31/00B65B31/02B65B7/28B65B51/10B65B61/06
Inventor 沈建华
Owner YANGZHOU SHIHUAI TIANYANG FOOD DEV