CN105857867A - Nano-composite film bag capable of realizing one-way venting and high obstruction - Google Patents
Nano-composite film bag capable of realizing one-way venting and high obstruction Download PDFInfo
- Publication number
- CN105857867A CN105857867A CN201610279808.7A CN201610279808A CN105857867A CN 105857867 A CN105857867 A CN 105857867A CN 201610279808 A CN201610279808 A CN 201610279808A CN 105857867 A CN105857867 A CN 105857867A
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- Prior art keywords
- bag
- thin film
- film
- nano
- composite film
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D29/00—Sacks or like containers made of fabrics; Flexible containers of open-work, e.g. net-like construction
- B65D29/02—Sacks with laminated or multiple walls
Abstract
The invention discloses a nano-composite film bag capable of realizing one-way venting and high obstruction, belongs to soft packing bags for food and medicines, and aims to provide a soft packing bag which is applied to the food and medicines, can vent gas inside the bag as well as prevent external gases such as oxygen, nitrogen, hydrogen, dioxides, water vapor and the like from entering the bag and is simple in production technology and low in cost. The nano-composite film bag comprises a bag body made of a heat-seal base material film and nonwoven fabric overlapped at a joint of the bag body, wherein the outer surface of the heat-seal base material film (4) is coated with a PVA film layer (3). The composite film bag is non-toxic and good in obstruction property, is an ideal environment-friendly packing material, and can replace existing high-obstruction packing materials for the food and medicines.
Description
Technical field
The present invention relates to a kind of food, medicine soft packaging bag, particularly relate to a kind of not only can one-way exhaust, but also the gases such as oxygen, nitrogen, hydrogen, titanium dioxide and water vapour can be had the packaging composite film bag of relatively high obstructing performance.
Background technology
At present, food, medicine are mainly based on flexible package；In order to prevent food or medicine from going bad, improve its safety, it is desirable to the packing material of such commodity must have preferable gas barrier property.At present, abroad mainly there are PVDC composite membrane, five-layer co-squeezing EVOH composite membrane for food, the high-barrier flexible packing material of medicine.And PVDC composite membrane relies primarily on external import, and difficulty of processing is big, cost is high；Five-layer co-squeezing EVOH composite membrane is higher to the requirement of equipment, and equipment investment is big, and domestic medium-sized and small enterprises is difficult to use.Therefore research and develop high-performance, the high-barrier flexible packing material of low cost is the direction of future market demand.
Summary of the invention
For drawbacks described above present in prior art, it is desirable to provide gas in bag both can be discharged by one, the gases such as extraneous oxygen, nitrogen, hydrogen, titanium dioxide and water vapour can be intercepted again enter, and production technology is simple, the one-way exhaust high-barrier nano compound membrane bag of low cost.
To achieve these goals, the present invention is by the following technical solutions: it includes the bag being made up of heat sealing substrate thin film, is overlapped on the non-woven fabrics of bag seam crossing；Heat sealing substrate thin film outer surface is coated with one layer of PVA film layer.
Heat sealing substrate thin film is PE thin film or CPP thin film.
It is compounded with one layer of printing element thin film at heat sealing substrate thin film inner surface.
Printing element thin film can be BOPP thin film or PET film, it is also possible to is BOPP laminated film or the aluminum plated PET thin film of aluminizing for printing element thin film.
Compared with the prior art, due to the fact that and have employed technique scheme, on the basis of " plastic composite ventilating packaging bag " (ZL200720303156.2), bag material is improved；I.e. it is coated with the one layer of polyvinyl alcohol through nano modification (PVA) slurry at heat sealing substrate thin film outer surface, therefore, it is possible to effectively intercept oxygen, nitrogen, hydrogen, carbon dioxide and water vapour etc., its oxygen barrier is better than PVDC composite membrane, five-layer co-squeezing EVOH composite membrane.It addition, due to the fact that only with two-layer composite, the most both saved raw material, in turn simplify technique, thus reduced cost.3rd, compound membrane bag of the present invention have employed has single-way exhaust function non-woven fabrics (some breathable microporous is distributed on it), the gas of more than 95% in bag can be got rid of, therefore can ensure packaging bag flat appearance, clear patterns, and packaging bag not cracky without evacuation packaging.4th, when compound membrane bag of the present invention needs the article carrying out shading preservation to pack for Folium Camelliae sinensis, medicine etc., alternative three layers of clad aluminum foil vacuum packaging bag, save aluminum money, reduce packing cost.
Compound membrane bag avirulence of the present invention, good barrier property, be a kind of very good environmental protection packaging material, alternative existing food, medicine high-barrier packaging material.
Accompanying drawing explanation
Fig. 1 is the structural representation of compound membrane bag of the present invention；
Fig. 2 is the structural representation of compound membrane bag bag of the present invention.
In figure: bag 1, non-woven fabrics 2, PVA film layer 3, heat sealing substrate thin film 4, printing element thin film 5.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings:
As shown in Fig. 1～2: compound membrane bag of the present invention is made up of bag 1, the non-woven fabrics 2 that is overlapped on bag seam crossing, and some breathable microporous (in figure do not indicate) is distributed on this non-woven fabrics.Bag 1 is made up of heat sealing substrate thin film 4, and the outer surface of this heat sealing substrate thin film is coated with one layer of PVA pasty film layer 3 through nano modification；Heat sealing substrate thin film 4 both can be PE thin film, can also be CPP thin film.
In order to improve the barrier property of packaging bag further, it is compounded with one layer of printing element thin film 5 at heat sealing substrate thin film 4 inner surface.When the article that packing material is without shading, printing element thin film 5 may select BOPP thin film or PET film；When packing material is article (such as Folium Camelliae sinensis, the medicine) needing to carry out shading treatment, printing element thin film 5 optional aluminize BOPP laminated film or aluminum plated PET thin film.
Claims (5)
1. an one-way exhaust high-barrier nano compound membrane bag, including the bag being made up of heat sealing substrate thin film, the non-woven fabrics that is overlapped on bag seam crossing；It is characterized in that: heat sealing substrate thin film (4) outer surface is coated with one layer of PVA film layer (3).
One-way exhaust high-barrier nano compound membrane bag the most according to claim 1, it is characterised in that: heat sealing substrate thin film (4) is PE thin film or CPP thin film.
One-way exhaust high-barrier nano compound membrane bag the most according to claim 1, it is characterised in that: it is compounded with one layer of printing element thin film (5) at heat sealing substrate thin film (4) inner surface.
One-way exhaust high-barrier nano compound membrane bag the most according to claim 3, it is characterised in that: printing element thin film (5) is BOPP thin film or PET film.
One-way exhaust high-barrier nano compound membrane bag the most according to claim 3, it is characterised in that: printing element thin film (5) is BOPP laminated film or the aluminum plated PET thin film of aluminizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610279808.7A CN105857867A (en) | 2016-05-03 | 2016-05-03 | Nano-composite film bag capable of realizing one-way venting and high obstruction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610279808.7A CN105857867A (en) | 2016-05-03 | 2016-05-03 | Nano-composite film bag capable of realizing one-way venting and high obstruction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105857867A true CN105857867A (en) | 2016-08-17 |
Family
ID=56628766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610279808.7A Pending CN105857867A (en) | 2016-05-03 | 2016-05-03 | Nano-composite film bag capable of realizing one-way venting and high obstruction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105857867A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101316568A (en) * | 2005-11-29 | 2008-12-03 | 株式会社大塚制药工厂 | Multi-chamber-bag and air block film |
| CN201161749Y (en) * | 2007-12-12 | 2008-12-10 | 王道德 | Plastic composite ventilating packaging bag |
| CN101659333A (en) * | 2008-08-25 | 2010-03-03 | 哈尔滨上洋包装制品有限公司 | PVA high-blocking water-based coated film |
| CN104085159A (en) * | 2014-06-30 | 2014-10-08 | 海宁市产品质量监督检验所 | One-way linear easily-torn composite membrane |
-
2016
- 2016-05-03 CN CN201610279808.7A patent/CN105857867A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101316568A (en) * | 2005-11-29 | 2008-12-03 | 株式会社大塚制药工厂 | Multi-chamber-bag and air block film |
| CN201161749Y (en) * | 2007-12-12 | 2008-12-10 | 王道德 | Plastic composite ventilating packaging bag |
| CN101659333A (en) * | 2008-08-25 | 2010-03-03 | 哈尔滨上洋包装制品有限公司 | PVA high-blocking water-based coated film |
| CN104085159A (en) * | 2014-06-30 | 2014-10-08 | 海宁市产品质量监督检验所 | One-way linear easily-torn composite membrane |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160817 |
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| RJ01 | Rejection of invention patent application after publication |