CN104309240B - A kind of homogeneous composite membrane for toe type packaging bag - Google Patents
A kind of homogeneous composite membrane for toe type packaging bag Download PDFInfo
- Publication number
- CN104309240B CN104309240B CN201410624856.6A CN201410624856A CN104309240B CN 104309240 B CN104309240 B CN 104309240B CN 201410624856 A CN201410624856 A CN 201410624856A CN 104309240 B CN104309240 B CN 104309240B
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- CN
- China
- Prior art keywords
- melting temperature
- hot melting
- composite
- layer
- packaging bag
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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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
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/40—Applications of laminates for particular packaging purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/04—Polyethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2323/00—Polyalkenes
- B32B2323/10—Polypropylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2439/00—Containers; Receptacles
- B32B2439/02—Open containers
- B32B2439/06—Bags, sacks, sachets
Abstract
The invention discloses a kind of homogeneous composite membrane for toe type packaging bag, the composite cover identical including material and composite bottom layer, wherein the upper and lower two-layer of composite cover has the first identical hot melting temperature, and intermediate layer has the second hot melting temperature less than described first hot melting temperature；The upper and lower two-layer of composite bottom layer has the 3rd identical hot melting temperature, and intermediate layer has the 4th hot melting temperature less than described 3rd hot melting temperature.Achieve the toe heat-sealing between homogeneous composite membrane.Be conducive to it to recycle, promote the utilization of resources and environmental protection.And ensure that physical and mechanical properties and outward appearance meet national standard.Sealing-strength, the flatness of packaging bag and soft degree are the most excellent.
Description
Technical field
The present invention relates to a kind of composite membrane.
Background technology
Composite membrane refers to by various plastics and paper, metal or other materials by techniques such as laminated extrusion coating, co-extrusions
The film of the sandwich construction that base material is combined and formed by technology.Mostly existing various composite plastic film is by the material of differing texture
Material is composited, to meet various function intensified or complementary requirement, as PET/CPP, PET/PE, BOPP/CPP, BOPP/PE,
NY/PE, NY/CPP, PVC/PE, NY/PVDC, PE/PVDC, PP/PVDC etc..Above-mentioned heterogeneous composite membrane due to each dissimilar materials
Cannot separate or separation costs is high, it is difficult to recycle.
In the making of packaging bag, in order to prevent printing material to the osmosis of pollution inside and outside bag, it is also necessary to use composite membrane
Printing layer is coated in the middle of composite membrane by technique.Meanwhile, in the hot sealing process of packaging bag, including hot melt limit mode and toe side
Formula, toe (also cry and scald limit, hot plate) mode is the face between combination/face contact, and firmness is higher, and a lot of packaging bags are necessary
Use this kind of mode.But the sealing that in prior art, toe mode is only applicable between heterogeneous composite membrane, it is difficult to realize homogeneity
Toe heat-sealing between composite membrane.Causing when not having function intensified or complementary requirement, processing toe type packaging bag also can only
Use heterogeneous composite membrane, be unfavorable for recycling.
Summary of the invention
In order to solve above-mentioned drawback, the technical problem to be solved is to provide one and can be used in toe type bag
The composite membrane of the homogeneous material composition of pack.In order to solve above-mentioned technical problem, the technical solution used in the present invention is, Yi Zhongyong
Homogeneous composite membrane in toe type packaging bag, it is characterised in that include composite cover and composite bottom layer that material is identical, described multiple
Close surface layer and composite bottom layer is all CPP film, or described composite cover and composite bottom layer are all PE films；Described composite cover
Upper, middle and lower-ranking structure is all included with composite bottom layer；Wherein the upper and lower two-layer of composite cover has the first identical hot melt temperature
Degree, intermediate layer has the second hot melting temperature less than described first hot melting temperature；The upper and lower two-layer of composite bottom layer has identical
3rd hot melting temperature, intermediate layer has the 4th hot melting temperature less than described 3rd hot melting temperature.
The described i.e. cast polypropylene film of CPP film, also referred to as un-stretched polypropylene film.The described i.e. polyethylene of PE film is thin
Film.
The beneficial effects of the present invention is, use the composite membrane of technique scheme, it is possible to be used for processing toe type packaging
Bag, it is achieved that the toe heat-sealing between homogeneous composite membrane.Be conducive to it to recycle, promote the utilization of resources and environmental protection.
Using the composite membrane of said structure, described composite cover and composite bottom layer can use coetrusion to make respectively, weld
While add man-hour, heat shrinkability and the internal stress of each film layer have suitability, are not only able to smoothly complete the weldering that packaging bag makes
Limit seals, and ensure that physical and mechanical properties and outward appearance meet national standard.Sealing-strength, the flatness of packaging bag and hand
Sense pliability is the most excellent.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Accompanying drawing explanation
Accompanying drawing is embodiment of the present invention composite membrane cross-section structure for amplifying principle schematic.
Detailed description of the invention
Seeing accompanying drawing, the described homogeneous composite membrane for toe type packaging bag includes composite cover that material is identical and compound
Bottom, described composite cover and composite bottom layer are all PE films.Described composite cover includes under upper strata, face 11, middle level, face 12, face
Layer 13 three-decker；Composite bottom layer includes upper strata, the end 21, middle level, the end 22, underlying layers 23 three-decker.
Wherein, upper strata, face 11, face lower floor 13 two-layer have the first identical hot melting temperature, and middle level, face 12 has less than described
Second hot melting temperature of the first hot melting temperature；
Equally, upper strata, the end 21, underlying layers 23 have the 3rd identical hot melting temperature, and middle level, the end 22 has less than the described 3rd
4th hot melting temperature of hot melting temperature.
In technique scheme, the selection of concrete material may refer to following illustration: according to table 1, described compound
During the material of 0274 trade mark that the upper strata, face 11 of surface layer, face lower floor 13 two-layer select proportioning to be 25%, there is the first identical heat
Melting temperatur (175 DEG C)；The material of 0274 trade mark that described middle level 12 can select proportioning to be 50%, 66.6%, 75%, has
The second hot melting temperature (170 DEG C, 165 DEG C, 160 DEG C) less than described first hot melting temperature (175 DEG C), it is also possible to select other heat
The melting temperatur material less than 175 DEG C, is not limited by the trade mark, such as 218W, 1220,5401,2036,2054 trade mark that proportioning is 25%
Material etc..
(table 1): the hot melting temperature (DEG C) of the material of some different PE plastics trademarks
The material selection mode of composite bottom layer is ibid.When using CPP film, its material selection mode is ibid.The most superfluous
State.Using the composite membrane of said structure, described composite cover and composite bottom layer can use coetrusion to make respectively, then carry out
Compound.
Gained composite membrane is not only able to smoothly complete the toe heat-sealing that packaging bag makes, and ensure that Physical Mechanical
National standard can be met with outward appearance.Sealing-strength, the flatness of packaging bag and soft degree are the most excellent.The present invention implements
The concrete detection data of the outturn sample of example see table 2 below:
The above-mentioned implementation that the present invention describes is merely to clearly illustrate technical scheme, and is not understood that
For the present invention being made any restriction.The present invention has known multiple replacement or deformation in the art, without departing from
On the premise of essential meaning of the present invention, each fall within protection scope of the present invention.
Claims (1)
1. the homogeneous composite membrane for toe type packaging bag, it is characterised in that include composite cover that material is identical and multiple
Closing bottom, described composite cover and composite bottom layer are all CPP films；Described composite cover and composite bottom layer all include upper, middle and lower
Three-decker；Wherein the upper and lower two-layer of composite cover has the first identical hot melting temperature, and intermediate layer has less than described first
Second hot melting temperature of hot melting temperature；The upper and lower two-layer of composite bottom layer has the 3rd identical hot melting temperature, and intermediate layer has low
The 4th hot melting temperature in described 3rd hot melting temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624856.6A CN104309240B (en) | 2014-11-07 | 2014-11-07 | A kind of homogeneous composite membrane for toe type packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624856.6A CN104309240B (en) | 2014-11-07 | 2014-11-07 | A kind of homogeneous composite membrane for toe type packaging bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104309240A CN104309240A (en) | 2015-01-28 |
| CN104309240B true CN104309240B (en) | 2016-08-24 |
Family
ID=52364615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410624856.6A Active CN104309240B (en) | 2014-11-07 | 2014-11-07 | A kind of homogeneous composite membrane for toe type packaging bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104309240B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002178463A (en) * | 2000-12-12 | 2002-06-26 | Dainippon Ink & Chem Inc | Packaging method and laminated film |
| CN101417515B (en) * | 2007-10-25 | 2011-08-17 | 上海紫华企业有限公司 | High-intensity low-gramweight embossing casting film and manufacture method thereof |
| CN102325651B (en) * | 2009-02-26 | 2014-05-07 | 三井化学株式会社 | Multilayer film and bag formed of film |
| CN202295641U (en) * | 2011-09-02 | 2012-07-04 | 浙江金石包装有限公司 | Interlayer three-edge sealing bag |
| CN203888318U (en) * | 2014-05-17 | 2014-10-22 | 重庆四平塑料包装股份有限公司 | Double-layer composite automatic packaging film for melting and inserting edges of hygienic products |
-
2014
- 2014-11-07 CN CN201410624856.6A patent/CN104309240B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104309240A (en) | 2015-01-28 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Homogeneous composite film for welding edge-type packaging bags Effective date of registration: 20190731 Granted publication date: 20160824 Pledgee: Bank of Changsha Limited by Share Ltd. Liuyang branch Pledgor: LIUYANG YUANYOU PRINTING PACKING CO.,LTD. Registration number: 2019430000073 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230801 Granted publication date: 20160824 Pledgee: Bank of Changsha Limited by Share Ltd. Liuyang branch Pledgor: LIUYANG YUANYOU PRINTING PACKING CO.,LTD. Registration number: 2019430000073 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Homogeneous Composite Film for Soldered Edge Packaging Bags Effective date of registration: 20230807 Granted publication date: 20160824 Pledgee: Bank of Changsha Limited by Share Ltd. Liuyang branch Pledgor: LIUYANG YUANYOU PRINTING PACKING CO.,LTD. Registration number: Y2023980051098 |
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