CN201693819U - Five-layer co-extrusion blocking cover material film - Google Patents
Five-layer co-extrusion blocking cover material film Download PDFInfo
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- CN201693819U CN201693819U CN2010202308480U CN201020230848U CN201693819U CN 201693819 U CN201693819 U CN 201693819U CN 2010202308480 U CN2010202308480 U CN 2010202308480U CN 201020230848 U CN201020230848 U CN 201020230848U CN 201693819 U CN201693819 U CN 201693819U
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Abstract
The utility model relates to a five-layer co-extrusion blocking cover material film, which is characterized by comprising a five-layer co-extrusion composite film structure consisting of a covering layer, an adhesive layer A, a blocking functional layer, an adhesive layer B and a functional hot sealing layer. The five-layer co-extrusion blocking cover material film has the following advantages that: a soft packing co-extrusion film formed from polyolefin blended resin, polyolefin resin and high-blocking resin by an extrusion blow molding multi-layer co-extrusion production process replaces a composite film containing glue and dilute and prepared by a dry composite process; properties of uniform longitudinal and transverse mechanical properties of a product, easy formation of a punching cover sub film, firm welded junction, easy tearing by hand and the like are ensured; meanwhile, the product has oxygen and gas blocking properties, low-temperature hot sealing property and the like; and the sanitation and environment-friendly performance of a composite soft packing product are greatly improved, the pollution of the dry composite production process to the environment is eliminated, the production and manufacture links are shortened, and the market demand of the high-blocking cover material film is met.
Description
Technical field
The utility model belongs to the flexible packaging film product technique field, particularly relates to a kind of five-layer co-squeezing obstruct and covers the material film.
Background technology
At present, the lid material membrane-based article of isolation-type is to be a kind of film article material with heat sealability and easy-to-rupture of main body base material by curtain coating or blow molding process production with CPP, CPE mostly, is used for the packing of seal covers such as gift, food such as sour milk, jelly, aviation packed meal.Because with CPP, CPE is main body base material lid material film, the barriering effect of its goods is not good, needs the secondary operations production link of dry type combination process to increase barrier layer for it.Above-mentioned secondary operations not only causes goods that the dissolvent residual phenomenon is arranged, and it produced also and can bring environmental pollution, and was detrimental to health, and its employed diluent can not thoroughly be eliminated, and cause potential safety hazard or the like easily, so be the technology that advanced country eliminated.
Summary of the invention
The utility model avoids the five-layer co-squeezing obstruct of environmental pollution to cover the material film for solving health and the environmental-protecting performance that the technical problem that exists in the known technology provides a kind of tool high barrier, improves the composite soft packaging goods.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: five-layer co-squeezing intercepts and covers the material film, and it is characterized in that: the five-layer co-squeezing that comprises covering layer, bonding coat A, barriers function layer, bonding coat B and function hot sealing layer goes out structure of composite membrane.
The utility model can also adopt following technical scheme: described five-layer co-squeezing intercepts the layer structure layout of cover the material film and is followed successively by: ground floor be covering layer, the second layer be bonding coat A, the 3rd layer for barriers function layer, the 4th layer be that bonding coat B, layer 5 are the function hot sealing layer.
It is 80 μ m～200 μ m that described five-layer co-squeezing intercepts the gross thickness of covering the material film.
The thickness of described covering layer is not less than 15 μ m, and the thickness of bonding coat A and bonding coat B is 2 μ m～8 μ m, and the barriers function layer thickness is 15 μ m～30 μ m, and the thickness of function hot sealing layer is 30 μ m～50 μ m.
The thickness of described covering layer is not less than 15 μ m, and the thickness of bonding coat A and bonding coat B is non-equal thickness, and barriers function layer thickness thickness is 15 μ m～30 μ m, and the thickness of function hot sealing layer is 30 μ m～50 μ m.
Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, TPO blending resin, vistanex, high barrier resin have been substituted the composite membrane that the dry type combination process that contains glue and diluent is made with the flexible package co-extrusion film of the multi-layer co-extruded production technology moulding of extrusion-blown modling.The vertical, horizontal mechanical property that has guaranteed product is even, firmly and with hand characteristic such as tears easily towards lid film easy-formation, weld bond; Make goods have characteristics such as barrier, low-temperature heat-sealing such as resistance oxygen, choke simultaneously.Not only improve the health and the environmental-protecting performance of composite soft packaging goods greatly, eliminated of the pollution of dry type combined producing tech, and shorten and manufacture link, satisfied the market demand of high barrier lid material film environment.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1; Fig. 2 is the structural representation of the utility model embodiment 2.
Among the figure: 1, covering layer; 2, bonding coat A; 3, barriers function layer; 4, bonding coat B; 5, function hot sealing layer.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, now exemplify following examples, and conjunction with figs. is described in detail as follows: embodiment 1, see also Fig. 1, five-layer co-squeezing intercepts and covers the material film, the five-layer co-squeezing that comprises covering layer 1, bonding coat A2, barriers function layer 3, bonding coat B4 and function hot sealing layer 5 goes out structure of composite membrane, it is 80 μ m～200 μ m that described five-layer co-squeezing intercepts the gross thickness of covering the material film, in the present embodiment, five-layer co-squeezing intercepts the gross thickness of covering the material film and is preferably 90 μ m.
Five-layer co-squeezing intercepts the layer structure layout cover material film and is followed successively by: ground floor be covering layer, the second layer be bonding coat A, the 3rd layer for barriers function layer, the 4th layer be that bonding coat B, layer 5 are the function hot sealing layer.Wherein covering layer 1 is the table die functional layer of goods, and this layer also has printing and dry type plyability for containing the covering significant level that polyolefin resin constitutes except that having easy cuttability.The thickness of covering layer is not less than 15 μ m, and in the present embodiment, the thickness of covering layer is preferably 30 μ m.Described bonding coat A 2 is the bonding coat of covering layer 1 and barriers function layer 3, and bonding coat A2 is undertaken the adjacent functional layer hot sticky compound for utilizing the polymer electrolyte binder resin by the hot extrusion form.The thickness of described bonding coat A2 is 2 μ m～8 μ m, in the present embodiment, and the preferred 5 μ m of the thickness of bonding coat A2.The barrier properties layer that described barriers function layer 3 constitutes for the resin that contains the high-barrier characteristic, the barriers function layer thickness is 15 μ m～30 μ m, in the present embodiment, the preferred 20 μ m of barriers function layer 3 thickness.Described bonding coat B4 is the bonding coat of barriers function layer 3 and function hot sealing layer 5, and this bonding coat B4 utilizes the polymer electrolyte binder resin to be undertaken the adjacent functional layer hot sticky compound by the hot extrusion form.The thickness of described bonding coat B4 is 2 μ m～8 μ m, in the present embodiment, and the preferred 5 μ m of the thickness of bonding coat B4.Heat-sealing functional layer that described function hot sealing layer 5 is goods and lid material functional layer, this function hot sealing layer 5 be the hot sealing layer that extraordinary polyolefin resin constitutes the co-extrusion film, has low-temperature heat-sealing, weld bond is firm and characteristic such as tears easily with hand.The thickness of described function hot sealing layer is 30 μ m～50 μ m, in the present embodiment, and the preferred 30 μ m of the thickness of function hot sealing layer 5.
Through the prescription mixed material, the material of covering layer, bonding coat A, barrier layer, bonding coat B, function hot sealing layer respectively through the fusion of five extruders, plastify, be expressed into five-layer co-squeezing die head conveyor screw and continue plasticizing, by round mouthful of mould coextrusion, extrude compound tubular membrane pipe from round mouthful of mould, the compressed air that the film Guan Zaimo heart blows into propels the price of and carries out cross directional stretch, simultaneously through the air cooling of annular tuyere and vertical drawing-off of going up the haulage clip rod, by after cutting edge the film tube being formed monolithic membrane, check back rolling on spool.
See also Fig. 2, the structure of embodiment 2 is basic identical with embodiment 1, its difference is that the thickness of bonding coat A2 and bonding coat B4 can be non-equal thickness with compound cohesive force index, and described bonding coat A2 thickness is preferably 5 μ m, and the thickness of bonding coat B4 is preferably 3 μ m.
Claims (5)
1. a five-layer co-squeezing intercepts and covers the material film, and it is characterized in that: the five-layer co-squeezing that comprises covering layer, bonding coat A, barriers function layer, bonding coat B and function hot sealing layer goes out structure of composite membrane.
2. five-layer co-squeezing according to claim 1 intercepts and cover the material film, it is characterized in that: described five-layer co-squeezing intercepts the layer structure layout of cover the material film and is followed successively by: ground floor is that covering layer, the second layer are that bonding coat A, the 3rd layer are that barriers function layer, the 4th layer are that bonding coat B, layer 5 are the function hot sealing layer.
3. five-layer co-squeezing according to claim 2 intercepts and covers the material film, it is characterized in that: it is 80 μ m～200 μ m that described five-layer co-squeezing intercepts the gross thickness of covering the material film.
4. five-layer co-squeezing according to claim 3 intercepts and covers the material film, it is characterized in that: the thickness of described covering layer is not less than 15 μ m, the thickness of bonding coat A and bonding coat B is 2 μ m～8 μ m, and the barriers function layer thickness is 15 μ m～30 μ m, and the thickness of function hot sealing layer is 30 μ m～50 μ m.
5. five-layer co-squeezing according to claim 3 intercepts and covers the material film, it is characterized in that: the thickness of described covering layer is not less than 15 μ m, the thickness of bonding coat A and bonding coat B is non-equal thickness, and barriers function layer thickness thickness is 15 μ m～30 μ m, and the thickness of function hot sealing layer is 30 μ m～50 μ m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010202308480U CN201693819U (en) | 2010-06-21 | 2010-06-21 | Five-layer co-extrusion blocking cover material film |
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| CN2010202308480U CN201693819U (en) | 2010-06-21 | 2010-06-21 | Five-layer co-extrusion blocking cover material film |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390148A (en) * | 2011-07-13 | 2012-03-28 | 武汉华丽生物材料有限公司 | High-separation multi-layer co-extrusion bio-based blow moulding film and preparation method thereof |
| CN104495066A (en) * | 2014-11-24 | 2015-04-08 | 陈伟群 | Sealing film suitable for low temperature sealing |
| CN111204095A (en) * | 2020-01-09 | 2020-05-29 | 江阴宝柏包装有限公司 | Easy-to-tear packaging composite film and extrusion type liquid packaging bag |
| CN111483198A (en) * | 2020-05-07 | 2020-08-04 | 广东美士达药包材料股份有限公司 | Easy-to-tear composite film and preparation method thereof |
| CN113400612A (en) * | 2021-06-21 | 2021-09-17 | 天津新兴东方临近空间航天科技有限公司 | Fluororesin-based good-stability multilayer co-extrusion film production process |
-
2010
- 2010-06-21 CN CN2010202308480U patent/CN201693819U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102390148A (en) * | 2011-07-13 | 2012-03-28 | 武汉华丽生物材料有限公司 | High-separation multi-layer co-extrusion bio-based blow moulding film and preparation method thereof |
| CN104495066A (en) * | 2014-11-24 | 2015-04-08 | 陈伟群 | Sealing film suitable for low temperature sealing |
| CN111204095A (en) * | 2020-01-09 | 2020-05-29 | 江阴宝柏包装有限公司 | Easy-to-tear packaging composite film and extrusion type liquid packaging bag |
| CN111483198A (en) * | 2020-05-07 | 2020-08-04 | 广东美士达药包材料股份有限公司 | Easy-to-tear composite film and preparation method thereof |
| CN111483198B (en) * | 2020-05-07 | 2021-02-23 | 广东美士达药包材料股份有限公司 | Easy-to-tear composite film and preparation method thereof |
| CN113400612A (en) * | 2021-06-21 | 2021-09-17 | 天津新兴东方临近空间航天科技有限公司 | Fluororesin-based good-stability multilayer co-extrusion film production process |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20130621 |