CN102275364A - Food fresh-keeping packaging bag and manufacturing method thereof - Google Patents
Food fresh-keeping packaging bag and manufacturing method thereof Download PDFInfo
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- CN102275364A CN102275364A CN2011101636294A CN201110163629A CN102275364A CN 102275364 A CN102275364 A CN 102275364A CN 2011101636294 A CN2011101636294 A CN 2011101636294A CN 201110163629 A CN201110163629 A CN 201110163629A CN 102275364 A CN102275364 A CN 102275364A
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Abstract
The invention discloses a food fresh-keeping packaging bag, which, from inside to outside, comprises a polyethylene film layer, a printing layer and a nylon film layer, wherein a high barrier layer is arranged between the polyethylene film layer and the nylon film layer, and provided with the printing layer. By using the food fresh-keeping packaging bag disclosed by the invention, the high barrier layer effectively prevents the fresh molecules of salted vegetables from escaping, so that the freshness of the salted vegetable can be kept 3-6 months, the brittleness thereof can be kept for 3 months, and the quality guarantee period of the salted vegetable can be prolonged to 12 months. The invention also discloses a method for manufacturing the food fresh-keeping packaging bag, which comprises the steps of compositing the high barrier layer, printing patterns, compositing the polyethylene film layer, and manufacturing bags by using a bag-manufacturing machine. The method is scientific and rational, and suitable for large-scale industrial production.
Description
Technical field
The present invention relates to a kind of packaging bag, relate in particular to a kind of food fresh keeping packaging bag.
Background technology
The food fresh keeping packaging bag keeps the freshness of food when being used to prolong time of guaranteeing the quality of food.The fresh-keeping of vegetables of pickling is a more insoluble problem, existing food fresh keeping packaging bag since the structure of sack and the bigger fresh keeping time in gap of material have only about one month, guarantee the quality eight months time, brittleness kept about one month, can not satisfy fresh-keeping for a long time.
Summary of the invention
Goal of the invention: the objective of the invention is at the deficiencies in the prior art, provide a kind of fresh keeping time long, the food fresh keeping packaging bag that the time is long, the brittleness retention time is long of guaranteeing the quality; Another object of the present invention is to provide a kind of method of making described food fresh keeping fresh-keeping packaging bag.
Technical scheme: in order to realize the foregoing invention purpose, the technical solution adopted in the present invention is:
A kind of food fresh keeping packaging bag comprises film layer, printed layers and polyamide laminate film from inside to outside, is provided with high-obstruction between described film layer and polyamide laminate film, is provided with printed layers at described high-obstruction.The fresh molecule of the vegetables that the effective maintenance of high-obstruction is pickled does not leak, and has kept the freshness and the brittleness of Pickle, because material is dense, and the shelf-life that increases cure foods rational in infrastructure.
Described high-obstruction is the PVDC material.Strong and the good perfect package material of low-temperature heat-sealing, heat-shrinkable and chemical stability of PVDC material barrier height, toughness; particularly it has that resistance is wet, resistance oxygen, protection against the tide, acid and alkali-resistance, oil resistant soaks and performance such as the solvent of anti-the number of chemical, has effectively protected freshness, brittleness and the quality of Pickle.
A kind of method of making described food fresh keeping packaging bag comprises the steps:
1), compound high-obstruction, high barrier material PVDC is spread upon on the polyamide laminate film, form high-obstruction through oven dry back, bake out temperature is 65 ℃～70 ℃, and the film after compound is twined rolling;
2), printed patterns, printed patterns on high-obstruction, oven dry printing ink, bake out temperature is 55 ℃～70 ℃, rolling is twined in printing ink oven dry back;
3), laminating polyethylene film layer, utilize glue spreader that polyurethane glue is spread upon high-obstruction,, push compound by compression roller 65 ℃～70 ℃ temperature line oven dry, after twining rolling, put into curing room cooling naturally after solidifying 48 hours under 50 ℃～70 ℃ the condition;
4), on Bag Making Machine, make the food fresh keeping packaging bag.
Beneficial effect: the present invention compared with prior art, its beneficial effect is:
1, between described film layer and polyamide laminate film, is provided with high-obstruction, high-obstruction effectively keeps the fresh molecule of Pickle not leak, the freshness of Pickle was saved in 3～6 months, and brittleness remained to 3 months, and the shelf-life extends to 12 months;
2, the strong and good perfect package material of low-temperature heat-sealing, heat-shrinkable and chemical stability of PVDC material barrier height, toughness, particularly it has that resistance is wet, resistance oxygen, protection against the tide, acid and alkali-resistance, oil resistant soaks and performance such as the solvent of anti-the number of chemical, has effectively protected freshness, brittleness and the quality of Pickle;
3, the film layer inboard that is arranged on the food fresh keeping packaging bag has effectively protected food in the packaging bag not to be used for the pollution of the printing ink and the polyurethane glue of printed patterns, and is safe and reliable;
4, make the suitable large-scale industrial production of method of described food fresh keeping packaging bag.
Description of drawings
Accompanying drawing is the structural representation of food fresh keeping packaging bag of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, by a most preferred embodiment, technical solution of the present invention is elaborated, but protection scope of the present invention is not limited to described embodiment.
As shown in the figure, a kind of food fresh keeping packaging bag, the high-obstruction 4 and the polyamide laminate film 5 that comprise film layer 1 from inside to outside, be used for compound polyurethane adhesive water layer 2, printed layers 3, PVDC material constitute.Strong and the good perfect package material of low-temperature heat-sealing, heat-shrinkable and chemical stability of PVDC material barrier height, toughness; particularly it has that resistance is wet, resistance oxygen, protection against the tide, acid and alkali-resistance, oil resistant soaks and performance such as the solvent of anti-the number of chemical; freshness, brittleness and the quality of Pickle have effectively been protected; the inboard that film layer is arranged on the food fresh keeping packaging bag has effectively protected the food in the packaging bag not to be used for the pollution of the printing ink and the polyurethane glue of printed patterns, and is safe and reliable.
Specific embodiment 1:
A kind of method of making described food fresh keeping packaging bag comprises the steps:
1), compound high-obstruction, high barrier material PVDC is spread upon on the polyamide laminate film, form high-obstruction through oven dry back, bake out temperature is 65 ℃, and the film after compound is twined rolling;
2), printed patterns, printed patterns on high-obstruction, oven dry printing ink, bake out temperature is 55 ℃, rolling is twined in printing ink oven dry back;
3), the laminating polyethylene film layer, utilize glue spreader that polyurethane glue is spread upon high-obstruction, in the oven dry of 65 ℃ temperature, push by compression roller compound, twine rolling after, put into curing room and after solidifying 48 hours under 50 ℃ the condition, cool off naturally;
4), on Bag Making Machine, make the food fresh keeping packaging bag.
Embodiment 2:
A kind of method of making described food fresh keeping packaging bag comprises the steps:
1), compound high-obstruction, high barrier material PVDC is spread upon on the polyamide laminate film, form high-obstruction through oven dry back, bake out temperature is 70 ℃, and the film after compound is twined rolling;
2), printed patterns, printed patterns on high-obstruction, oven dry printing ink, bake out temperature is 70 ℃, rolling is twined in printing ink oven dry back;
3), the laminating polyethylene film layer, utilize glue spreader that polyurethane glue is spread upon high-obstruction, in the oven dry of 70 ℃ temperature, push by compression roller compound, twine rolling after, put into curing room and after solidifying 48 hours under 70 ℃ the condition, cool off naturally;
4), on Bag Making Machine, make the food fresh keeping packaging bag.
Embodiment 3:
A kind of method of making described food fresh keeping packaging bag comprises the steps:
1), compound high-obstruction, high barrier material PVDC is spread upon on the polyamide laminate film, form high-obstruction through oven dry back, bake out temperature is 68 ℃, and the film after compound is twined rolling;
2), printed patterns, printed patterns on high-obstruction, oven dry printing ink, bake out temperature is 63 ℃, rolling is twined in printing ink oven dry back;
3), the laminating polyethylene film layer, utilize glue spreader that polyurethane glue is spread upon high-obstruction, in the oven dry of 68 ℃ temperature, push by compression roller compound, twine rolling after, put into curing room and after solidifying 48 hours under 60 ℃ the condition, cool off naturally;
4), on Bag Making Machine, make the food fresh keeping packaging bag.
Claims (3)
1. a food fresh keeping packaging bag comprises film layer, printed layers and polyamide laminate film from inside to outside, it is characterized in that: be provided with high-obstruction between described film layer and polyamide laminate film, be provided with printed layers at described high-obstruction.
2. food fresh keeping packaging bag according to claim 1 is characterized in that: described high-obstruction is the PVDC material.
3. a method of making described food fresh keeping packaging bag is characterized in that, comprises the steps:
1), compound high-obstruction, high barrier material PVDC is spread upon on the polyamide laminate film, form high-obstruction through oven dry back, bake out temperature is 65 ℃～70 ℃, and the film after compound is twined rolling;
2), printed patterns, printed patterns on high-obstruction, oven dry printing ink, bake out temperature is 55 ℃～70 ℃, rolling is twined in printing ink oven dry back;
3), laminating polyethylene film layer, utilize glue spreader that polyurethane glue is spread upon high-obstruction,, push compound by compression roller 65 ℃～70 ℃ temperature oven dry, after twining rolling, put into curing room cooling naturally after solidifying 48 hours under 50 ℃～70 ℃ the condition;
4), on Bag Making Machine, make the food fresh keeping packaging bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101636294A CN102275364A (en) | 2011-06-17 | 2011-06-17 | Food fresh-keeping packaging bag and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101636294A CN102275364A (en) | 2011-06-17 | 2011-06-17 | Food fresh-keeping packaging bag and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102275364A true CN102275364A (en) | 2011-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101636294A Pending CN102275364A (en) | 2011-06-17 | 2011-06-17 | Food fresh-keeping packaging bag and manufacturing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514753A (en) * | 2012-01-09 | 2012-06-27 | 湖北珍肴食品有限公司 | Method for improving bread packaging technology with air leakage |
| CN112873918A (en) * | 2020-12-04 | 2021-06-01 | 杨志峰 | Method for prolonging food fresh-keeping packaging |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200978084Y (en) * | 2006-12-07 | 2007-11-21 | 肖岗行 | Compound packing bags for foodstuffs |
| CN101306742A (en) * | 2007-10-19 | 2008-11-19 | 河南双汇投资发展股份有限公司 | Packaging film for foodstuff and method for manufacturing same |
| EP2258549A1 (en) * | 2008-03-26 | 2010-12-08 | Unitika, Ltd. | Biaxially stretched polyamide resin film having gas barrier properties and process for producing the biaxially stretched polyamide resin film |
| CN202124180U (en) * | 2011-06-17 | 2012-01-25 | 扬州科信包装印刷有限公司 | Food fresh keeping packaging bag |
-
2011
- 2011-06-17 CN CN2011101636294A patent/CN102275364A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200978084Y (en) * | 2006-12-07 | 2007-11-21 | 肖岗行 | Compound packing bags for foodstuffs |
| CN101306742A (en) * | 2007-10-19 | 2008-11-19 | 河南双汇投资发展股份有限公司 | Packaging film for foodstuff and method for manufacturing same |
| EP2258549A1 (en) * | 2008-03-26 | 2010-12-08 | Unitika, Ltd. | Biaxially stretched polyamide resin film having gas barrier properties and process for producing the biaxially stretched polyamide resin film |
| CN202124180U (en) * | 2011-06-17 | 2012-01-25 | 扬州科信包装印刷有限公司 | Food fresh keeping packaging bag |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514753A (en) * | 2012-01-09 | 2012-06-27 | 湖北珍肴食品有限公司 | Method for improving bread packaging technology with air leakage |
| CN112873918A (en) * | 2020-12-04 | 2021-06-01 | 杨志峰 | Method for prolonging food fresh-keeping packaging |
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Application publication date: 20111214 |