CN206344511U - It is a kind of to increase the polystyrene sheet material of the Shelf-Life of Yogurt - Google Patents
It is a kind of to increase the polystyrene sheet material of the Shelf-Life of Yogurt Download PDFInfo
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- CN206344511U CN206344511U CN201621442042.1U CN201621442042U CN206344511U CN 206344511 U CN206344511 U CN 206344511U CN 201621442042 U CN201621442042 U CN 201621442042U CN 206344511 U CN206344511 U CN 206344511U
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- layer
- polystyrene
- base material
- sheet material
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Abstract
Increase the polystyrene sheet material of the Shelf-Life of Yogurt the utility model proposes a kind of, specifically include polystyrene base material layer, barrier layer, the polystyrene base material layer is divided into medial surface and lateral surface, the barrier layer is close on the lateral surface of polystyrene base material layer, the medial surface of the polystyrene base material layer is also covered with hot sealing layer, the outer surface of the hot sealing layer is smooth face, and adhesive linkage is also folded between the polystyrene base material layer and barrier layer.Barrier layer is the polymeric membrane of high-barrier, so that whole sheet material possesses preferable barrier property, the gases such as energy effective blocking oxygen, carbon dioxide, vapor, so as to extend the shelf-life of packaging Yoghourt, hot sealing layer can be fabricated to the epiphragma sealing after equipment for prepn. of yoghurt with sheet material, Yoghourt is packaged in equipment for prepn. of yoghurt, improve barriering effect；Tack coat is mainly, and polystyrene base material layer and barrier layer can well be bonded and will not be layered, and the layer is than relatively thin, and main material is ethylene-vinyl acetate copolymer.
Description
Technical field
The utility model is related to the sheet material used in a kind of packing yogurt, specifically a kind of to increase the polyphenyl second of the Shelf-Life of Yogurt
Alkene sheet material.
Background technology
The leading liquid milk industry of normal-temperature yoghourt market speedup these years, is an important pole for dairy products recently.In the market acid
Milk is dairy products very salable, and Yoghourt packaging is all greatly the polystyrene quality made using polystyrene sheet material
Equipment for prepn. of yoghurt is packed, and can be kept the shelf-life of 14-30 days or so under the packaging normal condition, but our countries are that an area is wide
Big region, the circulation of product is accomplished by a period of time, and the shelf-life of product is too short to cause substantial amounts of waste and loss, limitation
The logistics space of such fresh product.
Utility model content
The purpose of this utility model is to overcome above shortcomings in the prior art, and provides a kind of increase Yoghourt
The polystyrene sheet material of shelf-life.
The technical scheme in the invention for solving the above technical problem is：Specifically include polystyrene base material layer, barrier
Layer, the polystyrene base material layer is divided into medial surface and lateral surface, and the barrier layer is close in polystyrene base material layer
On lateral surface, the medial surface of the polystyrene base material layer is also covered with hot sealing layer, and the outer surface of the hot sealing layer is smooth
Face, adhesive linkage is also folded between the polystyrene base material layer and barrier layer.Barrier layer is the polymeric membrane of high-barrier so that
Whole sheet material possesses preferable barrier property, can the gas such as effective blocking oxygen, carbon dioxide, vapor, so as to extend institute
The shelf-life of packing yogurt, hot sealing layer can be fabricated to the epiphragma sealing after equipment for prepn. of yoghurt with sheet material, Yoghourt is packaged in Yoghourt
In cup, barriering effect is improved；Tack coat is mainly, and polystyrene base material layer and barrier layer can well be bonded and will not be layered,
The layer is than relatively thin, and main material is ethylene-vinyl acetate copolymer.
The polystyrene base material layer includes three layers, is normal polystyrene layer, modified polyphenyl successively from outside to inner side
Pvdf layer and the mixing polystyrene layer mixed by normal polystyrene and MPS, three layers of polystyrene base material it
Between be brought into close contact connection.Polystyrene base material layer is the major part of polystyrene sheet material, provides various for polystyrene sheet material
Mechanical property and ductility, the proportion accounted in sheet material are maximum.
The barrier layer is evoh layer, and in uniform thickness is covered in polyphenyl second by adhesive linkage
The surface of alkene substrate layer.Ethylene-vinyl alcohol copolymer is a kind of crystalline polymer with chain structure.Ethylene contents exist
20-45%, it combine polyethylene processability and polyvinyl alcohol barrier property the characteristics of, also with higher intensity, bullet
Property, case hardness, oil resistivity, organic solvent resistance, wearability, and the significant barrier properties for gases of ethylene-vinyl alcohol copolymer,
Ethylene-vinyl alcohol copolymer is used in packaging material, there is provided excellent performance.
The hot sealing layer is transparent polystyrene layer.
The thickness of the evoh layer layer is 30-50 μm.
The thickness of the hot sealing layer is 120-200 μm, and the thickness of polystyrene base material layer is 600-750 μm.
The integral thickness of sheet material is 0.95-1.2 ㎜.
The utility model compared with prior art, with advantages below and effect：The barrier of sheet material is high, can effectively carry
The fresh keeping property of high packaging, can the gas such as effective blocking oxygen, carbon dioxide, vapor, so as to extend packaging Yoghourt
Shelf-life, and good processability, it can conveniently be fabricated to various shapes.
The equipment for prepn. of yoghurt that the utility model is made, has carried out the stability test of product, to content root by filling Yoghourt
Subjective appreciation and microorganism testing have been carried out according to standard 19302-2010.Its structural state of subjective appreciation main detection, smells its gas
Taste, its taste of product, viscosimetric and pH value；The test items such as microorganism limitation atmosphere coliform, mould, saccharomycete and pathogenic bacteria
Mesh.Condition of storage is normal temperature (25 ± 2) DEG C.Relative humidity is 75 ± 5 or so, and the time product performance at 4 months or so is remained to
Meet product standard.
Brief description of the drawings
Fig. 1 is the cross-sectional view of the utility model sheet material.
In figure：1st, polystyrene base material layer, 2, barrier layer, 3, hot sealing layer, 4, adhesive linkage, 5, normal polystyrene layer, 6,
MPS layer, 7, mixing polystyrene layer.
Embodiment
Below in conjunction with the accompanying drawings and the utility model is described in further detail by embodiment, following examples are pair
It is of the present utility model explanation and the utility model is not limited to following examples.
Polystyrene base material layer 1, barrier layer 2 are specifically included, 1 point of the polystyrene base material layer is medial surface and outside
Face, the barrier layer 2 is close on the lateral surface of polystyrene base material layer 1, the medial surface of the polystyrene base material layer 1
Also be covered with hot sealing layer 3, the outer surface of the hot sealing layer 3 is smooth face, polystyrene base material layer 1 and barrier layer 2 it
Between be also folded with adhesive linkage 4.
The polystyrene base material layer 1 includes three layers, is normal polystyrene layer 5 successively from outside to inner side, is modified and gathers
Styrene layer 6 and the mixing polystyrene layer 7 mixed by normal polystyrene and MPS, the three of polystyrene base material
Connection is brought into close contact between layer.
The barrier layer 2 be evoh layer, and it is in uniform thickness be covered in by adhesive linkage (4) it is poly-
The surface of styrene substrate layer 1.
The hot sealing layer 3 is transparent polystyrene layer.
The thickness of the evoh layer layer is 30-50 μm.
The thickness of the hot sealing layer 3 is 120-200 μm, and the thickness of polystyrene base material layer 1 is 600-750 μm.
The integral thickness of sheet material is 0.95-1.2 ㎜.
Claims (7)
1. a kind of increase the polystyrene sheet material of the Shelf-Life of Yogurt, polystyrene base material layer (1), barrier layer (2) are specifically included, its
It is characterised by：The polystyrene base material layer (1) is divided into medial surface and lateral surface, and the barrier layer (2) is close in polyphenyl
On the lateral surface of ethene substrate layer (1), the medial surface of the polystyrene base material layer (1) is also covered with hot sealing layer (3), the heat
The outer surface of sealing (3) is smooth face, and adhesive linkage is also folded between the polystyrene base material layer (1) and barrier layer (2)
(4)。
2. the polystyrene sheet material of increase the Shelf-Life of Yogurt according to claim 1, it is characterised in that：The polystyrene
Substrate layer (1) includes three layers, is normal polystyrene layer (5), MPS layer (6) and by normal successively from outside to inner side
Closely pasted between stereospecific polymerized styrene and the mixing polystyrene layer (7) of MPS mixing, three layers of polystyrene base material
Close connection.
3. the polystyrene sheet material of increase the Shelf-Life of Yogurt according to claim 1, it is characterised in that：The barrier layer
(2) it is evoh layer, and in uniform thickness polystyrene base material layer (1) is covered in by adhesive linkage (4)
Surface.
4. the polystyrene sheet material of increase the Shelf-Life of Yogurt according to claim 1 or 2, it is characterised in that：The heat-sealing
Layer (3) is transparent polystyrene layer.
5. the polystyrene sheet material of increase the Shelf-Life of Yogurt according to claim 3, it is characterised in that：Ethene-the second
The thickness of enol copolymer layer by layer is 30-50 μm.
6. the polystyrene sheet material of increase the Shelf-Life of Yogurt according to claim 1, it is characterised in that：The hot sealing layer
(3) thickness is 120-200 μm, and the thickness of polystyrene base material layer (1) is 600-750 μm.
7. the polystyrene sheet material of increase the Shelf-Life of Yogurt according to claim 1, it is characterised in that：The overall thickness of sheet material
Spend for 0.95-1.2 ㎜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621442042.1U CN206344511U (en) | 2016-12-26 | 2016-12-26 | It is a kind of to increase the polystyrene sheet material of the Shelf-Life of Yogurt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621442042.1U CN206344511U (en) | 2016-12-26 | 2016-12-26 | It is a kind of to increase the polystyrene sheet material of the Shelf-Life of Yogurt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206344511U true CN206344511U (en) | 2017-07-21 |
Family
ID=59321592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621442042.1U Expired - Fee Related CN206344511U (en) | 2016-12-26 | 2016-12-26 | It is a kind of to increase the polystyrene sheet material of the Shelf-Life of Yogurt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206344511U (en) |
-
2016
- 2016-12-26 CN CN201621442042.1U patent/CN206344511U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170721 Termination date: 20171226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |