CN1158178C - Food packing composite material and its production process - Google Patents
Food packing composite material and its production process Download PDFInfo
- Publication number
- CN1158178C CN1158178C CNB001118900A CN00111890A CN1158178C CN 1158178 C CN1158178 C CN 1158178C CN B001118900 A CNB001118900 A CN B001118900A CN 00111890 A CN00111890 A CN 00111890A CN 1158178 C CN1158178 C CN 1158178C
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- composite material
- layer
- package
- food
- sandwich layer
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Abstract
The present invention discloses a composite material for packing food and a production method thereof. The composite material for packing food comprises a sandwich layer and an outer layer, wherein the outer layer is coated on the sandwich layer, and the outer layer is an epsilon-polycaprolactone layer; polycaprolactone is coated on the sandwich layer by an extrusion method or a coating method. The composite material for package of food of the present invention has the advantages of easy natural degradation, good foldability, water resisting property, air isolation property and heat-sealing property, and the present invention is very suitable for preparing a liquid food container.
Description
The invention belongs to the packaging for foodstuff field, relate to a kind of composite material for package of food.
The disclosed Chinese patent 1055506A in 1991 (application number is 90105802.5) has introduced a kind of three-layer plastic compound film.But with the difficult liquid food packing container that is manufactured with certain collapsed shape of this laminated film, and this laminated film is difficult for degraded under field conditions (factors), is unfavorable for environmental protection.
The objective of the invention is to develop a kind of composite material for package of food at above-mentioned deficiency.
Embodiment of the present invention are: a kind of composite material for package of food, comprise sandwich layer and skin, and sandwich layer is a ply of paper, has been coated with skin on this ply of paper, this skin is ε-poly-own lactones layer.
The production method of above-mentioned composite material for package of food, described production method are extrusion molding or coating process, and the production technology of extrusion molding is with extruder ε-poly-own lactones to be expressed on the sandwich layer, make ε-poly-own lactones be applied to sandwich layer with the form of thin layer; The production technology of coating process is to use coating device, makes ε-poly-own lactones be applied to sandwich layer with the form of thin layer.
Advantage of the present invention: the one, described composite material for package of food can be folded into corresponding package shape according to the packing needs of liquid food; The 2nd, described composite material for package of food has adopted ε-poly-own lactones layer as skin, and therefore, it is degraded more under field conditions (factors); The 3rd, described composite material for package of food has waterproof, trapping and heat sealability preferably.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of square liquid food packing box.
Fig. 3 is the structural representation of roof shape liquid food packing box.
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, the present invention includes sandwich layer 1 and two layers of skin 2, this skin 2 is ε-poly-own lactones layer, and two layers of skin 2 are applied respectively in the upside and the downside of sandwich layer 1.Sandwich layer 1 is a ply of paper, and the used material of this ply of paper mainly is string or synthetic fibers.
The production method of above-mentioned composite material for package of food is an extrusion molding, and the production technology of extrusion molding is with extruder ε-poly-own lactones to be expressed on the sandwich layer 1, and ε-poly-own lactones is applied on the sandwich layer 1 with the form of thin layer.
The production method of above-mentioned composite material for package of food also can be coating process, and the production technology of coating process is to use coating device, and ε-poly-own lactones is applied on the sandwich layer 1 with the form of thin layer.
The skin 2 of above-mentioned composite material for package of food can have only one deck, and this one deck outer 2 is applied in a side of sandwich layer 1.
The sandwich layer 1 of above-mentioned composite material for package of food can be plastic layer, and the used material of this plastic layer is mainly polyolefin.
The sandwich layer 1 of above-mentioned composite material for package of food can be aluminium foil layer.
The sandwich layer 1 of above-mentioned composite material for package of food can be made up of ply of paper and plastic layer, and the used material of ply of paper mainly is string or synthetic fibers, and the used material of plastic layer mainly is a polyolefin.
The sandwich layer 1 of above-mentioned composite material for package of food can be made up of ply of paper and aluminium foil layer, and the used material of ply of paper mainly is string or synthetic fibers.
The sandwich layer 1 of above-mentioned composite material for package of food can be by being made up of aluminium foil layer and plastic layer, and the used material of plastic layer mainly is a polyolefin.
Composite material for package of food of the present invention must be made square liquid food packing box as shown in Figure 2, also can make roof shape liquid food packing box as shown in Figure 3, or the liquid food packing container of other shape.
Claims (9)
1, a kind of composite material for package of food comprises sandwich layer and skin, it is characterized in that sandwich layer is a ply of paper, has been coated with skin on this ply of paper, and this skin is ε-poly-own lactones layer.
2, according to the described a kind of composite material for package of food of claim 1, it is characterized in that skin is two layers, these two layers are outer applied respectively in the upside and the downside of sandwich layer.
3, a kind of composite material for package of food according to claim 1 is characterized in that the used material of ply of paper mainly is string or synthetic fibers.
4, a kind of composite material for package of food according to claim 1 is characterized in that skin can be one deck, and this one deck is outer applied in a side of sandwich layer.
5, a kind of composite material for package of food according to claim 1 is characterized in that sandwich layer can be plastic layer, and the used material of this plastic layer is mainly polyolefin.
6, a kind of composite material for package of food according to claim 1 is characterized in that sandwich layer can be aluminium foil layer.
7, a kind of composite material for package of food according to claim 1 is characterized in that sandwich layer can be made up of ply of paper and plastic layer, and the used material of ply of paper mainly is string or synthetic fibers, and the used material of plastic layer mainly is a polyolefin.
8, a kind of composite material for package of food according to claim 1 is characterized in that sandwich layer can be made up of ply of paper and aluminium foil layer, and the used material of ply of paper mainly is string or synthetic fibers.
9, a kind of composite material for package of food according to claim 1 is characterized in that sandwich layer can be made up of aluminium foil layer and plastic layer, and the used material of plastic layer mainly is a polyolefin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001118900A CN1158178C (en) | 2000-03-05 | 2000-03-05 | Food packing composite material and its production process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001118900A CN1158178C (en) | 2000-03-05 | 2000-03-05 | Food packing composite material and its production process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1312165A CN1312165A (en) | 2001-09-12 |
| CN1158178C true CN1158178C (en) | 2004-07-21 |
Family
ID=4581786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001118900A Expired - Fee Related CN1158178C (en) | 2000-03-05 | 2000-03-05 | Food packing composite material and its production process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1158178C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7975404B2 (en) | 2004-07-01 | 2011-07-12 | Stanbee Company, Inc. | Stiffeners for use in footwear |
| ES2360116T3 (en) * | 2004-07-01 | 2011-06-01 | Stanbee Company, Inc. | REINFORCEMENTS FOR FOOTWEAR. |
| CN111516317A (en) * | 2020-04-28 | 2020-08-11 | 睿泊(中国)环保科技有限公司 | Composite membrane and preparation method thereof |
-
2000
- 2000-03-05 CN CNB001118900A patent/CN1158178C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1312165A (en) | 2001-09-12 |
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