CN202807328U - Nitrogen packaging bag - Google Patents
Nitrogen packaging bag Download PDFInfo
- Publication number
- CN202807328U CN202807328U CN 201220458911 CN201220458911U CN202807328U CN 202807328 U CN202807328 U CN 202807328U CN 201220458911 CN201220458911 CN 201220458911 CN 201220458911 U CN201220458911 U CN 201220458911U CN 202807328 U CN202807328 U CN 202807328U
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- CN
- China
- Prior art keywords
- packaging bag
- nitrogen
- film
- bag
- food
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Vacuum Packaging (AREA)
Abstract
The utility model discloses a nitrogen packaging bag which is a sealed plastic bag filled with nitrogen. The nitrogen packaging bag is characterized in that the packaging bag is made of a material which is in a three-layer structure, wherein the upper layer is a PET (Polyethylene Terephthalate) film, the middle layer is a pure aluminum film, the lower layer is a CPP (Cast Polypropylene) film, the three layers are fused together through the hot composite technology, and the total thickness of the three layers is 0.07 mm. The length of the nitrogen packaging bag is 6.2 cm, and the width of the nitrogen packaging bag is 4.6 cm. The nitrogen packaging bag can be used for refreshing all kinds of food, the food in the packaging bag is in an anaerobic condition, and bacterial growth is inhibited, thereby achieving the refreshing purpose.
Description
Technical field
The utility model relates to a kind of packaging bag, and especially a kind of nitrogen of filling is with fresh-keeping nitrogen packed bag.
Background technology
Nitrogen is as a kind of chemical property torpescence, with the gas of other substance reactions, do not have nontoxic, non-corrosiveness generally is used for food antiseptic, and the gas in the food pack is extracted out, fill with nitrogen, can stop the oxidizing reaction of food, and then play fresh-keeping effect.
Present nitrogen food pack, because the packaging bag thickness low LCL, or poor sealing, cause easily the gas in it excessive, especially pack special food, such as perishable food, sack is had special requirement.
Summary of the invention
In order to overcome the deficiency of above-mentioned packaging bag, a kind of nitrogen packed bag that is applicable to pack various food is proposed.
The technical scheme in the invention for solving the technical problem is:
A kind of nitrogen packed bag is a kind of sealed plastic bag of filling nitrogen, it is characterized in that, described packaging bag is made material and had three-decker, is respectively the PET film on upper strata, the fine aluminium film of centre and the CPP film of lower floor.
Described three-layer thin-film merges by hot complex technique, and its gross thickness is 0.07mm.
This nitrogen packed bag is of a size of the wide 4.6cm of long 6.2cm.
The beneficial effects of the utility model are: the packaging bag good airproof performance, and the food in it places under the anaerobic state, the growth of anti-bacteria, thus play fresh-keeping purpose.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the utility model master TV structure scheme drawing.
Fig. 2 is the utility model sectional structure scheme drawing.
In the drawings 1, sealing area 2, nitrogen fill area
The specific embodiment
As shown in Figure 1, the utility model is the packaging bag of the wide 4.6cm of long 6.2cm, and its two ends and top are filled with nitrogen by hot sealing in the bag.By pressurization inflation 30 seconds, can in bag, be produced as 7 kPas pressure.
The utility model is the packaging bag of a sealing, is illustrated in figure 2 as the utility model sectional structure scheme drawing, and in the middle of sack is the nitrogen fill area.
Making material of the present utility model adopts three-decker, and its each layer function is successively:
Ground floor is the upper strata: the PET film has good heat-resisting, resistance to cold, air-tightness and fragrance protectiveness.
The second layer is interlayer: the fine aluminium film has good water proof, oxygen barrier function.Can completely cut off light fully, prolong the shelf-life of food, improve exquisite degree, the deflection of packing, can also further increase the barrier of packaging bag.
The 3rd layer is lower floor: the CPP film, and itself and Food Contact safety, function admirable can not affect the local flavor of in-built food.
Claims (3)
1. a nitrogen packed bag is a kind of sealed plastic bag of filling nitrogen, it is characterized in that: described packaging bag is made material and is had three-decker, is respectively the PET film on upper strata, the fine aluminium film of centre and the CPP film of lower floor.
2. nitrogen packed bag according to claim 1, it is characterized in that: the gross thickness of three-layer thin-film is 0.07mm.
3. nitrogen packed bag according to claim 1, it is characterized in that: sack is of a size of long 6.2cm, wide 4.6cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458911 CN202807328U (en) | 2012-09-10 | 2012-09-10 | Nitrogen packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220458911 CN202807328U (en) | 2012-09-10 | 2012-09-10 | Nitrogen packaging bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202807328U true CN202807328U (en) | 2013-03-20 |
Family
ID=47866252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220458911 Expired - Fee Related CN202807328U (en) | 2012-09-10 | 2012-09-10 | Nitrogen packaging bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202807328U (en) |
-
2012
- 2012-09-10 CN CN 201220458911 patent/CN202807328U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20130910 |