CN204472008U - A kind of food and medicine packing box sheet material - Google Patents
A kind of food and medicine packing box sheet material Download PDFInfo
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- CN204472008U CN204472008U CN201420793728.XU CN201420793728U CN204472008U CN 204472008 U CN204472008 U CN 204472008U CN 201420793728 U CN201420793728 U CN 201420793728U CN 204472008 U CN204472008 U CN 204472008U
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Abstract
The utility model discloses a kind of food and medicine packing box sheet material, it comprises polypropylene substrate, is compounded with coextrusion blow film in the direct hot pressing of a side surface of polypropylene substrate; Coextrusion blow film has multiple microbedding, comprises the obstruct microbedding being affixed the polypropylene heat seal microbedding of hot pressing compound, the polyethylene heat-sealing microbedding for the heat-sealing of box film on opposite side surface for described polypropylene substrate and being clipped between described polypropylene heat seal microbedding and polyethylene heat-sealing microbedding at a side surface.The utility model food and medicine packing box sheet material adopts polypropylene as sheet material substrate, at the coextrusion blow film of the direct hot pressing compound in its surface with barrier property, polypropylene substrate provides intensity and the deflection of splendid attire weight, coextrusion blow film provides barrier property, both are combined with each other by the direct hot pressing of polypropylene heat seal microbedding arranging coextrusion blow film one side surface, eliminate glue layer, ensure that the edible safety of content, and environmental protection and energy saving.
Description
Technical field
The utility model relates to packaging field, is specifically related to a kind of food medicine packing box sheet material.
Background technology
Commodity packaging for commodity storage, transport, guarantee the quality, beautify there is important function.According to the difference of pack content, packaging material also have different requirements and feature.
For the cell material of food and medicine packing box particularly food package box, its supporting power is large, and need larger thickness, General Requirements is more than 500 microns, minimum also will more than 100 microns, to ensure intensity and the deflection of material; In addition, avoid in cell material using that glue is bonding realizes compound, to ensure high-peeling strength and foodsafety as far as possible.
For this reason, what the food and medicine packing box sheet material of original adoption was general is polyester, crystalline p p sheet, and its cost is low, easily process, but barrier property is poor.The sheet material of aluminizing developed afterwards, although good barrier property, be difficult to reclaim, production cost and cost recovery are all higher.In order to improve the barrier of polyester or crystalline p p sheet, be developed the coextrusion sheet be made up of polypropylene layer, adhesive-layer, evoh layer, adhesive-layer, polypropylene layer, if publication number is the Chinese patent of CN101417519B; The shortcoming of this sheet material is, the thickness of evoh layer is large, and sheet material cost is high.
Therefore design a kind of bonding and to have the food and medicine packing box sheet material of high barrier and low cost very necessary without the need to glue.
Utility model content
The purpose of this utility model is to overcome the defect existed in prior art, provides a kind of not containing the food and medicine packing box sheet material of glue, high-barrier and low cost.
For achieving the above object, the technical solution of the utility model is, a kind of food and medicine packing box sheet material, and described food and medicine packing box sheet material comprises polypropylene substrate, is compounded with coextrusion blow film in the direct hot pressing of a side surface of polypropylene substrate; Coextrusion blow film has multiple microbedding, comprises the obstruct microbedding being affixed the polypropylene heat seal microbedding of hot pressing compound, the polyethylene heat-sealing microbedding for the heat-sealing of box film on opposite side surface for described polypropylene substrate and being clipped between described polypropylene heat seal microbedding and polyethylene heat-sealing microbedding at a side surface.
Compared with existing food and medicine packing box sheet material, food and medicine packing box sheet material of the present utility model adopts polypropylene as the substrate of sheet material, nontoxic, cost is low, ensure that intensity and the deflection of packing box sheet material, makes packing box can bear heavy weight content; Barriers function is realized by the coextrusion blow film in sheet material, and owing to containing barrier material in coextrusion blow film, and barrier material is only as the one deck in coextrusion blow film, and therefore the consumption of barrier material reduces greatly, and then reduces manufacturing cost; In addition, the side due to coextrusion blow film is polypropylene heat seal microbedding, and it can hot pressing compound direct with polypropylene substrate, bonding without the need to glue layer, ensure that the edible safety of content, and environmental protection and energy saving.
The described thickness stating coextrusion blow film is 35 ~ 65 microns, and the thickness wherein intercepting microbedding accounts for 5% ~ 10%; The thickness of described polypropylene substrate is at least 100 microns.
In order to improve peel strength, preferably, described coextrusion blow film is five-layer co-squeezing blown film; Described obstruct microbedding and described polypropylene heat seal microbedding and be respectively equipped with ethylene-vinyl acetate copolymer between described obstruct microbedding and described polyethylene heat-sealing microbedding and bond microbedding.
In order to improve peel strength and block-water performance, preferably, described coextrusion blow film is seven-layer co-extrusion blown film, seven-layer co-extrusion blown film comprise be clipped in the outer water blocking layer of polyethylene between described polypropylene heat seal microbedding and described obstruct microbedding, be clipped between polyethylene heat-sealing microbedding and described obstruct microbedding polyethylene in water blocking layer, bond for the ethylene-vinyl acetate copolymer of bonding described obstruct microbedding and the inside and outside water blocking layer of described polyethylene microbedding.
In order to improve peel strength and barrier property, preferably, described coextrusion blow film is nine layers of coextrusion blow film; Between described polypropylene heat seal microbedding and described polyethylene heat-sealing microbedding, be provided with three layers intercept microbedding, be followed successively by that the first nylon intercepts microbedding, ethylene-vinyl alcohol copolymer intercepts microbedding, the second nylon intercepts microbedding, between adjacent obstruct microbedding, described first nylon intercepts between microbedding and described polypropylene heat seal microbedding and described second nylon intercepts and to be respectively equipped with ethylene-vinyl acetate copolymer between microbedding and polyethylene heat-sealing microbedding and to bond microbedding.
Advantage of the present utility model and beneficial effect are: the utility model food and medicine packing box sheet material adopts polypropylene as sheet material substrate, at the coextrusion blow film of the direct hot pressing compound in its surface with barrier property, polypropylene substrate provides intensity and the deflection of splendid attire weight, coextrusion blow film provides barrier property, both are combined with each other by the direct hot pressing of polypropylene heat seal microbedding arranging coextrusion blow film one side surface, eliminate glue layer, ensure that the edible safety of content, and environmental protection and energy saving.This food and medicine packing box sheet material may be used for the collet box or bottom tray etc. of food as fresh meat and Key works Drug packing.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of food and medicine packing box sheet material in embodiment 1;
Fig. 2 is the cross section structure schematic diagram of food and medicine packing box sheet material in embodiment 2;
Fig. 3 is the cross section structure schematic diagram of food and medicine packing box sheet material in embodiment 3.
In figure: 1, polypropylene substrate; 2, coextrusion blow film; 21, polypropylene heat seal microbedding; 22, the outer water blocking layer of polyethylene; 23-1 and 23-2, first, second outer microbedding that bonds; 24, the first nylon intercepts microbedding; 25, ethylene-vinyl alcohol copolymer intercepts microbedding; 26, the second nylon intercepts microbedding; 27-1 and 27-2, first, second interior bonding microbedding; 28, water blocking layer in polyethylene; 29, polyethylene heat-sealing microbedding.
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 a kind of food and medicine packing box sheet material, and its structure as shown in Figure 1, is composited by polypropylene substrate 1 outside with at interior coextrusion blow film 2 about 135 DEG C direct hot pressing; The thickness of the polypropylene substrate 1 selected is at least more than 100 microns, selects the polypropylene substrate 1 of thickness more than 500 microns here; The thickness of coextrusion blow film 2 is 35 ~ 65 microns.
Wherein, coextrusion blow film 2 is five-layer structure, is followed successively by polypropylene (PP) heat seal microbedding 21, first outer bonding microbedding 23-1 from outside to inside, ethylene-vinyl alcohol copolymer intercepts in microbedding 25, first the microbedding 27-1 that bonds, polyethylene (PE) seals microbedding 29; Here, polypropylene heat seal microbedding 21 and polypropylene substrate 1 are affixed hot pressing compound; Polyethylene (PE) seals microbedding 29 and seals for the packaging box film that extrusion blow is together molded; Ethylene-vinyl alcohol copolymer intercepts microbedding 25 and plays the effect intercepting gas, and its thickness is 5% ~ 10% of the thickness of coextrusion blow film 2; First inside and outside bonding microbedding 27-1,23-1 plays bonding polar material and the effect of non-polar material, selects ethylene-vinyl acetate copolymer (EVA) to bond microbedding.
The feature of above-mentioned food and medicine packing box sheet material is without the need to glue compound, safety and environmental protection, and peel strength is high, has good barrier property and low cost of manufacture, can bear heavy weight content, as fresh meat, medicine, health products etc.
Embodiment 2
As different from Example 1, in the present embodiment, as shown in Figure 2, coextrusion blow film 2 is seven-layer structure, is followed successively by water blocking layer 28, polyethylene heat-sealing microbedding 29 in polypropylene heat seal microbedding 21, the outer water blocking layer 22, first of polyethylene outer bonding microbedding 23-1, the interior bonding microbedding 27-1 of ethylene-vinyl alcohol copolymer obstruct microbedding 25, first, polyethylene from outside to inside.Compared with embodiment 1, the advantage of the present embodiment food and medicine packing box sheet material is the block-water effect that sheet material has improvement.
Embodiment 3
As different from Example 1, in the present embodiment, as shown in Figure 3, coextrusion blow film 2 is nine Rotating fields, is followed successively by polypropylene heat seal microbedding 21, first outer bonding microbedding 23-1, the outer microbedding 23-2 that bonds of the first nylon obstruct microbedding 24, second from outside to inside, ethylene-vinyl alcohol copolymer intercepts in microbedding 25, second the microbedding 27-2 that bonds, the second nylon intercepts water blocking layer 28, polyethylene heat-sealing microbedding 29 in microbedding 26, first interior bonding microbedding 27-1, polyethylene.Compared with embodiment 1, the advantage of the present embodiment food and medicine packing box sheet material is the oxygen resistance that sheet material has improvement.
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 (5)
1. a food and medicine packing box sheet material, is characterized in that, described food and medicine packing box sheet material comprises polypropylene substrate, is compounded with coextrusion blow film in the direct hot pressing of a side surface of polypropylene substrate; Coextrusion blow film has multiple microbedding, comprises the obstruct microbedding being affixed the polypropylene heat seal microbedding of hot pressing compound, the polyethylene heat-sealing microbedding for the heat-sealing of box film on opposite side surface for described polypropylene substrate and being clipped between described polypropylene heat seal microbedding and polyethylene heat-sealing microbedding at a side surface.
2. food and medicine packing box sheet material as claimed in claim 1, it is characterized in that, the thickness of described coextrusion blow film is 35 ~ 65 microns, and the thickness wherein intercepting microbedding accounts for 5% ~ 10%; The thickness of described polypropylene substrate is at least 100 microns.
3. food and medicine packing box sheet material as claimed in claim 1, it is characterized in that, described coextrusion blow film is five-layer co-squeezing blown film; Described obstruct microbedding and described polypropylene heat seal microbedding and be respectively equipped with ethylene-vinyl acetate copolymer between described obstruct microbedding and described polyethylene heat-sealing microbedding and bond microbedding.
4. food and medicine packing box sheet material as claimed in claim 1, it is characterized in that, described coextrusion blow film is seven-layer co-extrusion blown film, seven-layer co-extrusion blown film comprise be clipped in the outer water blocking layer of polyethylene between described polypropylene heat seal microbedding and described obstruct microbedding, be clipped between polyethylene heat-sealing microbedding and described obstruct microbedding polyethylene in water blocking layer, bond for the ethylene-vinyl acetate copolymer of bonding described obstruct microbedding and the inside and outside water blocking layer of described polyethylene microbedding.
5. food and medicine packing box sheet material as claimed in claim 1, it is characterized in that, described coextrusion blow film is nine layers of coextrusion blow film; Between described polypropylene heat seal microbedding and described polyethylene heat-sealing microbedding, be provided with three layers intercept microbedding, be followed successively by that the first nylon intercepts microbedding, ethylene-vinyl alcohol copolymer intercepts microbedding, the second nylon intercepts microbedding, between adjacent obstruct microbedding, described first nylon intercepts between microbedding and described polypropylene heat seal microbedding and described second nylon intercepts and to be respectively equipped with ethylene-vinyl acetate copolymer between microbedding and polyethylene heat-sealing microbedding and to bond microbedding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793728.XU CN204472008U (en) | 2014-12-16 | 2014-12-16 | A kind of food and medicine packing box sheet material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793728.XU CN204472008U (en) | 2014-12-16 | 2014-12-16 | A kind of food and medicine packing box sheet material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204472008U true CN204472008U (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420793728.XU Active CN204472008U (en) | 2014-12-16 | 2014-12-16 | A kind of food and medicine packing box sheet material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204472008U (en) |
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2014
- 2014-12-16 CN CN201420793728.XU patent/CN204472008U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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. |
|
| CP01 | Change in the name or title of a patent holder | ||
| 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. |
|
| CP03 | Change of name, title or address |