CN104416995A - Multilayer film for packaging welding rod - Google Patents
Multilayer film for packaging welding rod Download PDFInfo
- Publication number
- CN104416995A CN104416995A CN201310390297.2A CN201310390297A CN104416995A CN 104416995 A CN104416995 A CN 104416995A CN 201310390297 A CN201310390297 A CN 201310390297A CN 104416995 A CN104416995 A CN 104416995A
- Authority
- CN
- China
- Prior art keywords
- layer
- density polyethylene
- multilayer film
- intermediate layer
- low density
- 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.)
- Pending
Links
Classifications
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- 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
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- 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
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- 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
- B32B2250/00—Layers arrangement
- B32B2250/03—3 layers
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/31—Heat sealable
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
-
- 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
- B32B2439/40—Closed containers
- B32B2439/62—Boxes, cartons, cases
Landscapes
- Laminated Bodies (AREA)
Abstract
The invention discloses a multilayer film for packaging a welding rod. The multilayer film comprises a surface layer, an intermediate layer and a heat-seal layer, wherein the surface layer and the heat-seal layer are adhered to the intermediate layer through a bonding layer; the surface layer comprises 70wt% of aliphatic polyester resin and 30wt% of glycerin fatty acid ester; the heat-seal layer comprises ultra low density polyethylene, and one or more than one of reinforced medium density polyethylene, linear low density polyethylene, low density polyethylene, ethylene alpha-olefin plastomer copolymer, metallocene polyethylene and ethylene-vinyl acetate copolymer; the intermediate layer comprises ethylene-alpha olefin copolymer. The surface roughness of the film is in the range from 0.2nm to 3.5nm, the temperature range is from -40 to 130 degrees centigrade, and the tensile modulus is in the range from 500 to 1600MPa. The multilayer shrink film is wider in heat-seal temperature range and better in mechanical and optical performances.
Description
Technical field
The invention belongs to multilayer film field, the multilayer film used when especially relating to a kind of electrode packaging.
Background technology
Along with the progress of technology, people propose higher performance requirement for packaging material.At present, Multi-layer thermal shrink wrap has been widely used in the packaging of industrial goods commodity as a kind of packaging material of excellent performance.Compared with conventional packaging material, multilayer film has lot of advantages: such as, and multilayer film can reach the effect that " fit " packs after thermal contraction to commodity, commodity therefore can be made to keep own face shaping, make exterior of commodity attractive in appearance and save space; Well can also ensure sealing, the protection against the tide of weld rod box.In the market, major part electrode packaging all adopts multi-layer co-extruded nylon shrink film, and one side plastic foil is more crisp when low temperature, bad mechanical property, and when causing low temperature circulate and deposit, broken bag rate is higher, welding rod can be caused to make moist, get rusty on the other hand, bring wastage of material to staff.
Summary of the invention
The problem to be solved in the present invention is to provide a kind of multilayer film, is especially applicable to the multilayer film that electrode packaging uses.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of electrode packaging multilayer film, comprise top layer, intermediate layer and hot sealing layer, described top layer, described hot sealing layer by adhesive layer and described intermediate layer bonding, described top layer comprises 70wt% aliphatic polyester resin and 30wt% fatty acid glyceride; Described hot sealing layer comprises very low density polyethylene and is selected from one or more the mixture in enhancement mode medium density polyethylene, LLDPE, low density polyethylene (LDPE), ethylene ' alpha '-olefin plastomer copolymers, metallocene PE, vinyl-vinyl acetate copolymer; Described intermediate layer comprises ethylene-alpha-olefin copolymer.
Described adhesive layer comprise connect described intermediate layer and be connected with described top layer outer adhesive layer, connect the interior adhesive layer that described intermediate layer is connected with described hot sealing layer, described outer adhesive layer comprises maleic anhydride modified LLDPE, and described interior adhesive layer comprises maleic anhydride modified LLDPE.
The density of the very low density polyethylene of described hot sealing layer is 0.810kg/m
3below.
The surface roughness of this film is 0.2-3.5nm, and temperature range is-40 ~ 130 DEG C, and stretch modulus is 500-1600MPa.
The advantage that the present invention has and good effect are: the present invention is owing to adopting technique scheme, and the multilayered shrink films of preparation has wider heat-sealing temperature scope, have machinery and optical property very well, are applicable to the packaging of the weld rod box of all size.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention
In figure:
1, top layer 2, outer adhesive layer 3, intermediate layer
4, interior adhesive layer 5, hot sealing layer
Detailed description of the invention
As shown in Figure 1, the present invention is a kind of electrode packaging multilayer film, comprises top layer 1, intermediate layer 3 and hot sealing layer 5, top layer 1, hot sealing layer 5 by adhesive layer and intermediate layer 3 bonding, top layer 1 comprises 70wt% aliphatic polyester resin and 30wt% fatty acid glyceride; Hot sealing layer 5 comprises very low density polyethylene and is selected from one or more the mixture in enhancement mode medium density polyethylene, LLDPE, low density polyethylene (LDPE), ethylene ' alpha '-olefin plastomer copolymers, metallocene PE, vinyl-vinyl acetate copolymer; Intermediate layer 3 comprises ethylene-alpha-olefin copolymer.
Described adhesive layer comprise connect described intermediate layer and be connected with described skin outer adhesive layer 2, connect the interior adhesive layer 4 that described intermediate layer is connected with described hot sealing layer, outer adhesive layer 2 comprises maleic anhydride modified LLDPE, and interior adhesive layer 4 comprises maleic anhydride modified LLDPE.
The density of the very low density polyethylene of described hot sealing layer is 0.810kg/m
3below.
Specific embodiment 1: top layer 1 comprises 70wt% aliphatic polyester resin and 30wt% fatty acid glyceride; Hot sealing layer 5 comprises 10 ~ 99wt% very low density polyethylene, and be preferably 30 ~ 95wt%, the density of very low density polyethylene is 0.750kg/m
3, hot sealing layer 5 thickness is 1 ~ 20 μm; Intermediate layer 3 comprises ethylene-alpha-olefin copolymer, and intermediate layer 3 thickness is 5 ~ 20 μm; Outer adhesive layer 2 comprises maleic anhydride modified LLDPE, interior adhesive layer 4 comprises maleic anhydride modified LLDPE, the gross thickness of this film is 20 ~ 70 μm, the surface roughness of this film is 0.2-3.5nm, temperature range is-40 ~ 130 DEG C, and stretch modulus is 500-1600MPa.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (4)
1. an electrode packaging multilayer film, comprises top layer, intermediate layer and hot sealing layer, it is characterized in that: described top layer, described hot sealing layer by adhesive layer and described intermediate layer bonding, described top layer comprises 70wt% aliphatic polyester resin and 30wt% fatty acid glyceride; Described hot sealing layer comprises very low density polyethylene and is selected from one or more the mixture in enhancement mode medium density polyethylene, LLDPE, low density polyethylene (LDPE), ethylene ' alpha '-olefin plastomer copolymers, metallocene PE, vinyl-vinyl acetate copolymer; Described intermediate layer comprises ethylene-alpha-olefin copolymer.
2. a kind of electrode packaging multilayer film according to claim 1, it is characterized in that: described adhesive layer comprise connect described intermediate layer and be connected with described top layer outer adhesive layer, connect the interior adhesive layer that described intermediate layer is connected with described hot sealing layer, described outer adhesive layer comprises maleic anhydride modified LLDPE, and described interior adhesive layer comprises maleic anhydride modified LLDPE.
3. a kind of electrode packaging multilayer film according to claim 2, is characterized in that: the density of the very low density polyethylene of described hot sealing layer is 0.810kg/m
3below.
4. a kind of electrode packaging multilayer film according to claim 3, is characterized in that: the surface roughness of this film is 0.2-3.5nm, and temperature range is-40 ~ 130 DEG C, and stretch modulus is 500-1600MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310390297.2A CN104416995A (en) | 2013-08-30 | 2013-08-30 | Multilayer film for packaging welding rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310390297.2A CN104416995A (en) | 2013-08-30 | 2013-08-30 | Multilayer film for packaging welding rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104416995A true CN104416995A (en) | 2015-03-18 |
Family
ID=52967611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310390297.2A Pending CN104416995A (en) | 2013-08-30 | 2013-08-30 | Multilayer film for packaging welding rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104416995A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105125047A (en) * | 2015-10-12 | 2015-12-09 | 绍兴市必固纺织品有限公司 | See-through heat-isolating and insulating curtain board and preparation method thereof |
| CN107022141A (en) * | 2017-04-19 | 2017-08-08 | 杨凌福祥塑业有限公司 | A kind of plastic film for agricultural use and its preparation method and application |
| CN107081949A (en) * | 2017-06-15 | 2017-08-22 | 四川大西洋焊接材料股份有限公司 | 5kg, the method for packing of some electrodes, composite membrane and preparation method thereof |
-
2013
- 2013-08-30 CN CN201310390297.2A patent/CN104416995A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105125047A (en) * | 2015-10-12 | 2015-12-09 | 绍兴市必固纺织品有限公司 | See-through heat-isolating and insulating curtain board and preparation method thereof |
| CN107022141A (en) * | 2017-04-19 | 2017-08-08 | 杨凌福祥塑业有限公司 | A kind of plastic film for agricultural use and its preparation method and application |
| CN107081949A (en) * | 2017-06-15 | 2017-08-22 | 四川大西洋焊接材料股份有限公司 | 5kg, the method for packing of some electrodes, composite membrane and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150318 |
|
| WD01 | Invention patent application deemed withdrawn after publication |