CN204640962U - A kind of composite membrane for photosensitive material packaging - Google Patents
A kind of composite membrane for photosensitive material packaging Download PDFInfo
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- CN204640962U CN204640962U CN201520222095.1U CN201520222095U CN204640962U CN 204640962 U CN204640962 U CN 204640962U CN 201520222095 U CN201520222095 U CN 201520222095U CN 204640962 U CN204640962 U CN 204640962U
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Abstract
The utility model provides a kind of composite membrane for photosensitive material packaging, is composited successively from outside to inside by printed layers, the first adhesive phase, shading barrier layer, the second adhesive phase, shading hot sealing layer; The biaxially oriented film of printed layers to be thickness be 10 ~ 30um can be any one in biaxially oriented polyester film, two-way nylon film, bidirectional stretching polypropylene film; Shading barrier layer is thickness is the soft alloy aluminium foil of 7 ~ 12um or the high barrier aluminum-plating film of 12-25um; The multi-layer co-extruded polyolefin film of shading hot sealing layer to be thickness be 40 ~ 120um; The dual-component polyurethane adhesive of first and second adhesive phase to be thickness be 1.0-5.0um.The composite membrane that the utility model provides has excellent light-proofness and heat sealability, and packing timber light weight quantizes, and moderate cost, moisture barrier property is good, and merchandise news can be intact for a long time.
Description
Technical field
The utility model relates to a kind of composite membrane for photosensitive material packaging, belongs to field of packaging material.
Background technology
Photosensitive material on traditional market mainly adopts rigid plastics to pack, and its packaging material weight is comparatively large, and cost is higher.Start in recent years to occur some flexible packing materials, a kind of multi-layer packaging bag disclosed in Chinese patent document CN201604864U, and a kind of overwrap for photosensitive material disclosed in Chinese patent document CN202062765U.But these packagings all come with some shortcomings, and the aluminium foil as the former may exist pin hole or easily damage, single aluminium foil layer shading is relied on to there is the risk of light leak, once exposure will cause loss or scrap; The paper plastic structure of the latter has certain limitation in moisture barrier property, the mode of paper table print or labeling can only be adopted simultaneously to embody merchandise news, be easily worn, pollute or lack, be not suitable for the permanent intact preservation of information.
Utility model content
The technical problems to be solved in the utility model be to provide a kind of for photosensitive material packaging, packing timber light weight quantize, moderate cost, shading performance is good, and moisture barrier property is good, the composite membrane that merchandise news can be intact for a long time.
In order to solve the problems of the technologies described above, the technical solution of the utility model is to provide a kind of composite membrane for photosensitive material packaging, it is characterized in that: be composited successively from outside to inside by printed layers, the first adhesive phase, shading barrier layer, the second adhesive phase, shading hot sealing layer.
Preferably, the biaxially oriented film of described printed layers to be thickness be 10 ~ 30um.
Preferably, described biaxially oriented film is any one in biaxially oriented polyester film, two-way nylon film, bidirectional stretching polypropylene film.
Preferably, the soft alloy aluminium foil of described shading barrier layer to be thickness be 7 ~ 12um, or thickness is the high barrier aluminum-plating film of 12 ~ 25um.
Preferably, the multi-layer co-extruded polyolefin shading film of described shading hot sealing layer to be thickness be 40 ~ 120um.
Preferably, the dual-component polyurethane adhesive of described first adhesive phase and the second adhesive phase to be thickness be 1.0 ~ 5.0um.
Preferably, described multi-layer co-extruded polyolefin shading film comprises: one or more layers shading resin bed containing 2% ~ 20% carbon black particle, and heat sealable resin bed.
The composite membrane that the utility model provides, realizes packaging lightweight by the mode of multilayer flexible packing material compound and reduces packing cost; Employing comprises the superposition of two layers of light screening material such as shading barrier layer and shading hot sealing layer, reduce that single light shield layer exists light leak risk, effectively ensure that good shading performance; Adopt soft alloy aluminum layers of foil or high barrier aluminum-plating film to provide excellent moisture barrier property, adopt biaxially oriented film to impose the mode of inner print and compound, can avoid the wearing and tearing of graph text information, pollution or disappearance, merchandise news can be intact for a long time.
The composite membrane that the utility model provides overcomes the deficiencies in the prior art, there is excellent light-proofness and heat sealability, packing timber light weight quantizes, moderate cost, moisture barrier property is good, and merchandise news can be intact for a long time, can need flexible arrangement and use according to user, prefabricated various types of sack, or directly provide volume film automatically to be packed by user.
Accompanying drawing explanation
The composite membrane schematic diagram for photosensitive material packaging that Fig. 1 provides for the utility model;
Fig. 2 is three-layer co-extruded inflation film shading hot sealing layer schematic diagram.
Detailed description of the invention
For making the utility model become apparent, hereby with a preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
A kind of composite membrane schematic diagram for photosensitive material packaging that Fig. 1 provides for the utility model, described a kind of composite membrane for photosensitive material packaging is by printed layers 1, first adhesive phase 2, and shading barrier layer 3, second adhesive phase 4, shading hot sealing layer 5 are composited from outside to inside successively.
Printed layers 1 is preferably the biaxially oriented polyester film that thickness is 12 μm.
The preferential thickness of first adhesive phase 2 is that the two-component polyurethane adhesive of 2.5 μm sticks agent.
Shading barrier layer 3 preferred thickness is the soft alloy aluminium foil of 7 μm.
The preferential thickness of second adhesive phase 4 is that the two-component polyurethane adhesive of 2.5 μm sticks agent.
Shading hot sealing layer 5 preferred thickness is the Multi-layer blown film film of 50 μm.Three-layer co-extruded inflation film is adopted in the present embodiment, as shown in Figure 2, connected to form successively containing the LLDPE 52 of 10% carbon black particle, the metallocene linear-low density polyethylene 53 of thickness 20um by the low density polyethylene (LDPE) 51 of thickness 10um, thickness 20um, wherein low density polyethylene (LDPE) 51 is composite surface, and metallocene linear-low density polyethylene 53 is heat cover.
The manufacture method of the above-mentioned composite membrane for photosensitive material packaging, comprises the following steps:
The first step: adopt three-layer co-extruded go out blow molding process, by low density polyethylene (LDPE), the LLDPE containing 10% carbon black particle, metallocene linear-low density polyethylene, by three screw rod heating and meltings, Coextrusion Blow Moulding, obtain the three-layer co-extruded blow-molding polyethylene membrane that thickness is 50um, as shading hot sealing layer.From composite surface to heat cover, be followed successively by 10um, 20um, 20um, wherein the composite surface of the thick side of 10um does online sided corona treatment, requires that surface tension is greater than 41 dyne.
Second step: adopt gravure printing technique, required graph text information is printed in the biaxially oriented polyester film corona surface that 12um is thick, obtains the biaxially oriented polyester film of print in being with.
3rd step: adopt composite dry process, be 12um biaxially oriented polyester film by the thickness that prints in band successively with two-component polyurethane adhesive, the three-layer co-extruded blow-molding polyethylene membrane lamination of thickness to be the soft aluminium foil of 7um and thickness be 50um is combined with each other, wherein the printing surface of biaxially oriented polyester film and the composite surface of shading hot sealing layer and aluminium foil laminate are combined with each other.
Through measuring and calculating, the above-mentioned composite film packaging gross weight for photosensitive material packaging is 6% ~ 22% of conventional hard plastic packaging, and cost is 15% ~ 33% of conventional hard plastic packaging.Light-proofness aspect, is tested by the light-proofness of illuminance 830lux, without exposure phenomenon.Barrier aspect, adopts ASTM F1249 " Standard Test Method for Water Vapor Transmission Rate Through Plastic Film and Sheeting Using a Modulated Infrared Sensor1 " method test compound film water vapor transmission rates to be less than 0.005g/100in
2.24h, prove that the composite membrane for photosensitive material packaging provided by the invention has excellent moisture barrier property.Biaxially oriented polyester film has excellent printing adaptability energy, and the mode of print and compound in employing, can avoid the wearing and tearing of graph text information, pollution or disappearance, merchandise news can be intact for a long time.
When the composite membrane for photosensitive material packaging that the utility model provides uses, flexible arrangement and use can be needed according to user, prefabricated various types of sack, or directly provide volume film automatically to be packed by user.
Claims (4)
1., for a composite membrane for photosensitive material packaging, it is characterized in that: be composited successively from outside to inside by printed layers (1), the first adhesive phase (2), shading barrier layer (3), the second adhesive phase (4), shading hot sealing layer (5);
Described shading barrier layer (3) for thickness be the soft alloy aluminium foil of 7 ~ 12um, or thickness is the high barrier aluminum-plating film of 12 ~ 25um;
Described shading hot sealing layer (5) for thickness be the multi-layer co-extruded polyolefin shading film of 40 ~ 120um.
2. as claimed in claim 1 a kind of for photosensitive material packaging composite membrane, it is characterized in that: described printed layers (1) for thickness be the biaxially oriented film of 10 ~ 30um.
3. a kind of composite membrane for photosensitive material packaging as claimed in claim 2, is characterized in that: described biaxially oriented film is any one in biaxially oriented polyester film, two-way nylon film, bidirectional stretching polypropylene film.
4. a kind of composite membrane for photosensitive material packaging as claimed in claim 1, is characterized in that: described first adhesive phase (2) and the second adhesive phase (4) for thickness be the dual-component polyurethane adhesive of 1.0 ~ 5.0um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520222095.1U CN204640962U (en) | 2015-04-14 | 2015-04-14 | A kind of composite membrane for photosensitive material packaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520222095.1U CN204640962U (en) | 2015-04-14 | 2015-04-14 | A kind of composite membrane for photosensitive material packaging |
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| Publication Number | Publication Date |
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| CN204640962U true CN204640962U (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520222095.1U Active CN204640962U (en) | 2015-04-14 | 2015-04-14 | A kind of composite membrane for photosensitive material packaging |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108177401A (en) * | 2017-12-13 | 2018-06-19 | 上海紫江彩印包装有限公司 | A kind of polyolefin film, preparation method and include its photosensitive material capping film |
| CN113552660A (en) * | 2020-04-24 | 2021-10-26 | 南亚塑胶工业股份有限公司 | Visible light shielding structure |
-
2015
- 2015-04-14 CN CN201520222095.1U patent/CN204640962U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108177401A (en) * | 2017-12-13 | 2018-06-19 | 上海紫江彩印包装有限公司 | A kind of polyolefin film, preparation method and include its photosensitive material capping film |
| CN108177401B (en) * | 2017-12-13 | 2020-02-04 | 上海紫江彩印包装有限公司 | Polyolefin film, preparation method thereof and photosensitive material sealing film comprising polyolefin film |
| CN113552660A (en) * | 2020-04-24 | 2021-10-26 | 南亚塑胶工业股份有限公司 | Visible light shielding structure |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |