CN204472037U - The light tight type composite membrane of a kind of black - Google Patents
The light tight type composite membrane of a kind of black Download PDFInfo
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- CN204472037U CN204472037U CN201420793643.1U CN201420793643U CN204472037U CN 204472037 U CN204472037 U CN 204472037U CN 201420793643 U CN201420793643 U CN 201420793643U CN 204472037 U CN204472037 U CN 204472037U
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Abstract
The utility model discloses the light tight type composite membrane of a kind of black, described composite membrane by lower from be followed successively by transparent base film, ink layer, adhesive layer and transparent involution film; The wherein ink layer reflective ink layer that comprises at least two-layer black ink layer and be clipped between black ink layer.The reflectivity of reflective ink layer is high, can its side black ink layer light of reflectance-transmittance further, by the light that reflects again absorb by black ink layer, thus avoid light to pass composite membrane; Even if through reflective ink layer, the light be through also can absorb by the black ink layer of opposite side; Thus add light-proofness and the opaqueness of composite membrane.This composite film surface is transparent base film and transparent involution film, covering effect is realized by ink layer, but not by adding look mother to realize in transparent base film and transparent involution film, therefore the uniform degree of blackness of composite membrane can also be realized, composite membrane has smooth bright clean surface, is conducive to the class improving packaging bag.
Description
Technical field
The utility model relates to packaging field, is specifically related to a kind of light tight type composite membrane of black for needing shading to preserve article packaging.
Background technology
Composite membrane is the packaging material that a class is commonly used, and it is of a great variety, can be used for barrier packaging, heat resistance packaging, differential permeability packaging, freshness packaging, electric conductivity packaging, decomposability packaging, light-proofness packaging etc.Light-proofness packaging wherein refers to that the content of packaging is comparatively responsive to light, therefore proposes requirement to the light-proofness of composite membrane.
The light screening material that existing composite membrane is conventional is aluminium foil, and due to the poor mechanical property of aluminium foil, therefore aluminium foil is commonly used for the intermediate layer of composite membrane, the gluing top layer with better mechanical strength and printing performance in the both sides of aluminium foil simultaneously, glue quantity is large, and compound cost is high, and compound difficulty is large.
Utility model content
The purpose of this utility model is to overcome the defect existed in prior art, provides the black that a kind of manufacturing process is simple, resin added is few light tight type composite membrane.
For achieving the above object, the technical solution of the utility model is, the light tight type composite membrane of a kind of black, described composite membrane by lower from be followed successively by transparent base film, ink layer, adhesive layer and transparent involution film; The wherein ink layer reflective ink layer that comprises at least two-layer black ink layer and be clipped between black ink layer.
In order to reduce costs, preferably, described reflective ink layer is white ink layer.
Preferably, the thickness of described black ink layer and described reflective ink layer is 1 ~ 2 micron.Compared to the black ink layer of individual layer, under the prerequisite realizing same shading rate, the gross thickness of above-mentioned sandwich structure ink layer can reduce greatly.
In order to reduce costs, preferably, described ink layer is made up of two-layer black ink layer and the reflective ink layer be clipped between two-layer black ink layer.
Described transparent base film is used for printing-ink and protective effect, can be the one in biaxially oriented polyester film (BOPET) layer or bidirectional stretching polypropylene film (BOPP) layer or two-way stretching polyamide film (BOPA) layer.
In order to improve surface tension, improve the cohesive of transparent base film and ink layer, preferably, described transparent base film is made up of corona layer and non-corona layer, and wherein the surface of corona layer applies described ink layer.
Described adhesive layer, for bonding the transparent base film and transparent involution film that are coated with ink layer, can select polyurethane sticking layer.
Described transparent involution film mainly plays involution effect, can select as polyethylene (PE) layer or cast polypropylene (CPP) layer.
In order to increase the functional of composite membrane, can also preferably, described transparent involution film is Multi-layer blown film film, and superficial layer and the described ink layer of its side are bonded by adhesive layer, the superficial layer of opposite side is polyethylene or polypropylene layer hot sealing layer, is provided with barrier layer between two superficial layers.
Advantage of the present utility model and beneficial effect are: the light tight type composite membrane of the utility model black, the reflective ink layer of one deck white is pressed from both sides by two-layer black ink layer, the reflectivity of reflective ink layer is high, can its side black ink layer light of reflectance-transmittance further, by the light that reflects again absorb by black ink layer, thus avoid light to pass composite membrane; Even if through reflective ink layer, the light be through also can absorb by the black ink layer of opposite side; Thus add light-proofness and the opaqueness of composite membrane.This composite film surface is transparent base film and transparent involution film, covering effect is realized by ink layer, but not by adding look mother to realize in transparent base film and transparent involution film, therefore the uniform degree of blackness of composite membrane can also be realized, composite membrane has smooth bright clean surface, is conducive to the class improving packaging bag.In addition, this composite membrane only needs one deck adhesive layer to realize bonding, and therefore manufacturing cost and compound difficulty greatly reduce.This packaging bag may be used for the packaging to the comparatively responsive article of light, as being mixed with the fresh meat of seasoning matter or cure.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of the light tight type composite membrane of black in embodiment 1;
Fig. 2 is the cross section structure schematic diagram of the light tight type composite membrane of black in embodiment 2;
Fig. 3 is the cross section structure schematic diagram of the light tight type composite membrane of black in embodiment 3;
Fig. 4 is the cross section structure schematic diagram of the light tight type composite membrane of black in embodiment 4.
In figure: 1, transparent base film; 2, ink layer; 3, adhesive layer; 4, transparent involution film; 11, corona layer; 12, non-corona layer; 21-1 and 21-2, black ink layer; 22-1 and 22-2, white ink layer; 41-1 and 41-2, superficial layer; 42-1 and 42-2, adhesive layer; 43, barrier layer.
Detailed description of the invention
Below in conjunction with embodiment, detailed description of the invention of the present utility model is further described.Following examples only for clearly the technical solution of the utility model being described, and can not limit protection domain of the present utility model with this.
Embodiment 1
The utility model is the light tight type composite membrane of a kind of black, as shown in Figure 1, this composite membrane by lower from be followed successively by transparent base film 1, ink layer 2, adhesive layer 3 and transparent involution film 4; Wherein ink layer 2 is made up of two-layer black ink layer 21-1,21-2 and the reflective ink layer 22-1 be clipped between two-layer black ink layer 21-1,21-2, and the thickness of black ink layer 21-1,21-2 and reflective ink layer 22-1 is respectively 1 ~ 2 micron.
Wherein, reflective ink layer 22-1 is white ink layer, plays the effect of reflectance-transmittance black ink layer 21-1 light, the light reflected through reflective ink layer 22-1 again absorb by black ink layer 21-1; Even if through reflective ink layer 22-1, also can absorb by black ink layer 21-2; Thus add the light-proofness of composite membrane.
Here, transparent base film 1 can be the one in biaxially oriented laminated polyester film (BOPET) or bidirectional stretching polypropylene film layer (BOPP) or two-way stretching polyamide film layer (BOPA), plays and accepts ink layer 2, protection ink layer 2 and ensure the effect of composite membrane mechanical strength; Transparent involution film 4 can be polyethylene layer (PE) or cast polypropylene layer (CPP), plays the effect of heat-sealing; Adhesive layer 3 can be dual-component polyurethane adhesive layer, plays bonding and is coated with the transparent base film 1 of ink layer 2 and the effect of transparent involution film 4.
Embodiment 2
As different from Example 1, in the utility model, as shown in Figure 2, for improving the peel strength of transparent base film 1 and ink layer 2 in composite membrane, by transparent base film 1 before coating printing ink first through sided corona treatment, to improve the surface tension of this side surface, thus form the corona layer 11 being positioned at transparent base film 1 one side surface and the non-corona layer 12 being positioned at transparent base film 1 opposite side surface; After forming corona layer 11, carry out printing-ink on the surface of corona layer 11, form reflective ink layer 22-1, the black ink layer 21-2 of black ink layer 21-1, white successively.The composite membrane of the present embodiment has the peel strength of improvement.
Embodiment 3
As different from Example 2, the present embodiment, in order to improve shaded effect, adds the number of plies of ink layer.In the present embodiment, be specially, as shown in Figure 3, ink layer 2 comprises three layers of black ink layer 21-1,21-2,21-3 and is clipped in black ink layer 21-1 between two, reflective ink layer 22-1,22-2 between 21-2,21-3.
Embodiment 4
As different from Example 2, the present embodiment is in order to improve shaded effect, and the present embodiment improves the structure of transparent involution film 4 in composite membrane.In the present embodiment, transparent involution film 4 is Multi-layer blown film film.Here, as shown in Figure 4, the superficial layer 41-1 of the side of Multi-layer blown film film is polyethylene or polypropylene layer, for being bonded by adhesive layer 3 with ink layer 2, the superficial layer 41-2 of opposite side is polyethylene or polypropylene layer hot sealing layer, be provided with ethylene-vinyl alcohol copolymer (EVOH) barrier layer 43 between two superficial layers 41-1,41-2, barrier layer 43 together extrusion blow plastic film be provided with ethylene-vinyl acetate copolymer (EVA) adhesive layer 42-1,42-3 between superficial layer 41-1,41-2.
In addition, coextrusion blow film can also have other structures, depending on packaging function.
Embodiment 5
As different from Example 1, in the utility model, reflective ink layer 22-1 is aluminium ink layer.Cost is slightly high by contrast, but shaded effect is better.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. the light tight type composite membrane of black, is characterized in that, described composite membrane by lower from be followed successively by transparent base film, ink layer, adhesive layer and transparent involution film; The wherein ink layer reflective ink layer that comprises at least two-layer black ink layer and be clipped between black ink layer.
2. the light tight type composite membrane of black as claimed in claim 1, it is characterized in that, described reflective ink layer is white ink layer.
3. the light tight type composite membrane of black as claimed in claim 1, it is characterized in that, the thickness of described black ink layer and described reflective ink layer is respectively 1 ~ 2 micron.
4. the light tight type composite membrane of black as claimed in claim 1, it is characterized in that, described ink layer is made up of two-layer black ink layer and the reflective ink layer be clipped between two-layer black ink layer.
5. the light tight type composite membrane of black as claimed in claim 1, is characterized in that, described transparent base film is the one in biaxially oriented laminated polyester film or bidirectional stretching polypropylene film layer or two-way stretching polyamide film layer.
6. the light tight type composite membrane of black as claimed in claim 5, it is characterized in that, described transparent base film is made up of corona layer and non-corona layer, and wherein the surface of corona layer applies described ink layer.
7. the light tight type composite membrane of black as claimed in claim 1, it is characterized in that, described adhesive layer is polyurethane sticking layer.
8. the light tight type composite membrane of black as claimed in claim 1, it is characterized in that, described transparent involution film is polyethylene layer or cast polypropylene layer.
9. the light tight type composite membrane of black as claimed in claim 1, it is characterized in that, described transparent involution film is Multi-layer blown film film, superficial layer and the described ink layer of its side are bonded by adhesive layer, the superficial layer of opposite side is polyethylene or polypropylene layer hot sealing layer, is provided with barrier layer between two superficial layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793643.1U CN204472037U (en) | 2014-12-16 | 2014-12-16 | The light tight type composite membrane of a kind of black |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793643.1U CN204472037U (en) | 2014-12-16 | 2014-12-16 | The light tight type composite membrane of a kind of black |
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| CN204472037U true CN204472037U (en) | 2015-07-15 |
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| CN201420793643.1U Active CN204472037U (en) | 2014-12-16 | 2014-12-16 | The light tight type composite membrane of a kind of black |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422459A (en) * | 2019-08-15 | 2019-11-08 | 东莞市博晨塑料科技有限公司 | A kind of printing ink package bag |
| CN116160742A (en) * | 2022-12-09 | 2023-05-26 | 上海艾录包装股份有限公司 | PP material cheese composite sheet and preparation method thereof |
-
2014
- 2014-12-16 CN CN201420793643.1U patent/CN204472037U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110422459A (en) * | 2019-08-15 | 2019-11-08 | 东莞市博晨塑料科技有限公司 | A kind of printing ink package bag |
| CN116160742A (en) * | 2022-12-09 | 2023-05-26 | 上海艾录包装股份有限公司 | PP material cheese composite sheet and preparation method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 214400 No.2 Tonggang Road, Changjing Town, Jiangyin, Wuxi, Jiangsu Province Patentee after: Shenghui new materials Co.,Ltd. Address before: 214400 No.2 Tonggang Road, Changjing Industrial Park, Jiangyin, Wuxi, Jiangsu Province Patentee before: JIANGYIN SUNRISE PACKAGING MATERIAL Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214400 No.2 Tonggang Road, Changjing Town, Jiangyin, Wuxi, Jiangsu Province Patentee after: Shenghui New Material Co.,Ltd. Address before: 214400 No.2 Tonggang Road, Changjing Town, Jiangyin, Wuxi, Jiangsu Province Patentee before: Shenghui new materials Co.,Ltd. |