CN204640991U - A kind of transparency high separation hot pickled mustard tube packaging material - Google Patents
A kind of transparency high separation hot pickled mustard tube packaging material Download PDFInfo
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- CN204640991U CN204640991U CN201520199843.9U CN201520199843U CN204640991U CN 204640991 U CN204640991 U CN 204640991U CN 201520199843 U CN201520199843 U CN 201520199843U CN 204640991 U CN204640991 U CN 204640991U
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Abstract
The utility model provides a kind of transparency high separation hot pickled mustard tube packaging material, is structure of composite membrane, comprises: mechanical strength layer (1), is positioned at skin, plays the effect of strength support layer; High-barrier polyethylene coating (2), is positioned at time skin, plays barrier layer effect; Adhesive layer (3), is positioned at time internal layer, plays interlayer bonding effect; Polyethylene heat seal layer (4), is positioned at internal layer, plays the effect of heat-sealing synthesis bag.Owing to have employed high-barrier polyethylene coating material in composite membrane, coating layer thickness is only 0.6 ~ 1.0 μm, blocking oxygen performance≤1.0ml/ (m
224h0.1MPa), having high transparent and high barrier feature concurrently, is a kind of desirable hot pickled mustard tube packaging material.
Description
Technical field
The utility model relates to a kind of packaging material, particularly a kind of transparency high separation hot pickled mustard tube packaging material.
Background technology
the manufacturing technology of hot pickled mustard tube just originated from as far back as 1898 Fuling county of Chongqing City up to the present, the history of existing over one hundred year.Fuling Zacai is perfect in workmanship, enjoys a good market both at home and abroad, so the reputation obtaining " township of Chinese hot pickled mustard tube " claims.A lot of provinces and cities of current China can make hot pickled mustard tube.
hot pickled mustard tube packaging film now commercially with the most use is BOPP/VMPET/PE composite membrane, BOPA/PE composite membrane, and requires that composite membrane has certain water boiling resistance sterilization ability, and the performance deficiency of above-mentioned two class composite membranes is fairly obvious.
composite membrane, shading has certain barrier, cannot see that content is unfavorable for choosing when consumer buys, and the oxygen barrier of composite membrane is greatly about 20ml/ (m
2
24h0.1MPa), belong to medium barrier material, its barrier property depends critically upon the performance of 300 ~ 500 evaporation aluminium laminations, but so thin evaporation aluminium lamination performance is very unstable.One, in fact there is a large amount of small pin-hole phenomena in evaporation aluminium lamination, from 0.1 micron to 25 microns not etc., resistive energy is unsatisfactory, also unstable; They are two years old, the attachment of evaporation aluminium lamination and base material PET is based on intermolecular physical absorption power, once under the sterilising conditions of 85 DEG C ~ 100 DEG C, because the thermal expansion coefficient difference of evaporation aluminium lamination and PET base material is obvious, often occur that large area shifts at evaporation aluminium lamination after sterilizing, the compactness of evaporation aluminium lamination is subject to heavy damage, and barrier also declines to a great extent, and actual preservation and effect is undesirable.
composite membrane, transparent have certain barrier, and the oxygen resistance of composite membrane is greatly about 60ml/ (m
2
24h0.1MPa), belong to medium barrier material, but there is any to emphasize, above-mentioned detection data draw under relative humidity is 0% condition, and the disadvantage of nylon membrane is exactly increase along with relative humidity, the nylon membrane molecule moisture absorption, intermolecular gap increases, when environment relative temperature is greater than 65%RH, the oxygen barrier of nylon membrane, along with declining to a great extent, is not desirable packaging material yet.
therefore, develop a kind of transparency high separation hot pickled mustard tube packaging composite film, to the actual shelf-life of improving hot pickled mustard tube packaging, have very much market using value.
Summary of the invention
undesirable for the actual barrier property of hot pickled mustard tube packaging bag on market, the problem that shelf-life is short, the utility model provides a kind of transparency high separation hot pickled mustard tube packaging composite film, actual barrier property improves 20 times than current material, materials processing cost and current material are substantially suitable simultaneously, substantially increase the preservation and effect of hot pickled mustard tube packaging.
the transparency high separation hot pickled mustard tube packaging material that the utility model provides, are structure of composite membrane, comprise: mechanical strength layer, is positioned at skin, plays strength support role; High-barrier polyethylene coating, is positioned at time skin, plays barrier layer effect; Adhesive layer, is positioned at time internal layer, plays interlayer bonding effect; Polyethylene heat seal layer, is positioned at internal layer, plays the effect of heat-sealing synthesis bag.
described mechanical strength layer, be biaxially oriented polyester film, thickness is 12 ~ 15 μm, has the advantages that hot strength is high, deflection is good.
described high-barrier polyethylene coating, be modified polyvinylalcohol material, barrier is insensitive to relative humidity, and coating layer thickness is 0.6 ~ 1.0 μm, blocking oxygen performance≤1.0ml/ (m
2
24h0.1MPa).
described adhesive layer, be two-component polyurethane adhesive adhensive layer, thickness is 1.2-3 μm, and effect has been bonding effect.
described polyethylene heat seal layer is three-layer co-extruded blended and modified polyethylene film, and thickness is 45 ~ 85 μm to be had good heat-sealing and become a bag performance.
maximum feature of the present utility model is: composite membrane for barrier layer with 0.6 ~ 1.0 μm of modified polyvinylalcohol material, has the transparency and barrier to the insensitive feature of relative humidity, has≤1.0ml/ (m
2
high obstructing performance 24h0.1MPa), keeps good at barrier property after the processing sterilizing of 85 DEG C ~ 100 DEG C; Inside and outside two-layer be all that good resistance is wet barrier material, sufficient protective effect is served to the polyethylene coating of resistive formation.
Accompanying drawing explanation
fig. 1 is the structural representation of the utility model transparency high separation hot pickled mustard tube packaging material.
Detailed description of the invention
below in conjunction with accompanying drawing, the utility model is described in further detail, can implements according to this with reference to description word to make those skilled in the art.
attached number in the figure is as follows: 1-mechanical strength layer; 2-high-barrier polyethylene coating; 3-adhesive layer; 4-polyethylene heat seal layer.
Embodiment
a kind of transparency high separation hot pickled mustard tube packaging material, are structure of composite membrane, are followed successively by mechanical strength layer 1, high-barrier polyethylene coating 2, adhesive layer 3, polyethylene heat seal layer 4 from outside to inside.
described mechanical strength layer 1, be biaxially oriented polyester film, thickness is 12 ~ 15 μm, has the advantages that hot strength is high, deflection is good.
described high-barrier polyethylene coating 2, be modified polyvinylalcohol material, barrier is insensitive to relative humidity, and coating layer thickness is 0.6 ~ 1.0 μm, blocking oxygen performance≤1.0ml/ (m
2
24h0.1MPa).
described adhesive layer 3, be two-component polyurethane adhesive adhensive layer, thickness is 1.2-3 μm, and effect has been bonding effect.
described polyethylene heat seal layer 4 is three-layer co-extruded blended and modified polyethylene film, and thickness is 45 ~ 85 μm to be had good heat-sealing and become a bag performance.
key technology of the present utility model is high-barrier polyethylene coating 2, and be modified polyvinylalcohol material, barrier is insensitive to relative humidity, and coating layer thickness is 0.6 ~ 1.0 μm, blocking oxygen performance≤1.0ml/ (m
2
24h0.1MPa).The barrier property of polyethylene coating does not depend on merely the thickness of coating, more crucial is holiday rate, therefore process with smooth roll rubbing method in polyethylene coating coating processing, coating uniform, has given full play to the function that polyvinyl alcohol material high-crystallinity is high resistance.
Claims (2)
1. transparency high separation hot pickled mustard tube packaging material, is characterized in that, comprising:
Mechanical strength layer (1), is positioned at skin, plays strength support role;
High-barrier polyethylene coating (2), is positioned at time skin, plays barrier layer effect;
Adhesive layer (3), is positioned at time internal layer, plays interlayer bonding effect;
Polyethylene heat seal layer (4), is positioned at internal layer, plays the effect of heat-sealing synthesis bag.
2. transparency high separation hot pickled mustard tube packaging material according to claim 1, is characterized in that: described high-barrier polyethylene coating (2), and be modified polyvinylalcohol material, coating layer thickness is 0.6 ~ 1.0 μm, blocking oxygen performance≤1.0ml/ (m
224h0.1MPa).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520199843.9U CN204640991U (en) | 2015-04-06 | 2015-04-06 | A kind of transparency high separation hot pickled mustard tube packaging material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520199843.9U CN204640991U (en) | 2015-04-06 | 2015-04-06 | A kind of transparency high separation hot pickled mustard tube packaging material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204640991U true CN204640991U (en) | 2015-09-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520199843.9U Expired - Fee Related CN204640991U (en) | 2015-04-06 | 2015-04-06 | A kind of transparency high separation hot pickled mustard tube packaging material |
Country Status (1)
| Country | Link |
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| CN (1) | CN204640991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113002100A (en) * | 2021-03-31 | 2021-06-22 | 海南必凯水性新材料有限公司 | High-barrier composite film and preparation method thereof |
-
2015
- 2015-04-06 CN CN201520199843.9U patent/CN204640991U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113002100A (en) * | 2021-03-31 | 2021-06-22 | 海南必凯水性新材料有限公司 | High-barrier composite film and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20180406 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |