CN103568430A - Manufacturing method of laminated packing material for foods - Google Patents
Manufacturing method of laminated packing material for foods Download PDFInfo
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- CN103568430A CN103568430A CN201310498495.0A CN201310498495A CN103568430A CN 103568430 A CN103568430 A CN 103568430A CN 201310498495 A CN201310498495 A CN 201310498495A CN 103568430 A CN103568430 A CN 103568430A
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Abstract
The invention relates to a manufacturing method of a laminated packing material for foods. The manufacturing method comprises the steps of coating a blocking resin liquid or a blocking resin solution as a blocking layer on a paper core layer, wherein the blocking resin liquid comprises a dispersing liquid; drying the blocking layer; removing a dispersing agent or solvent of the blocking resin liquid; extruding a resin composition on the dry surface of the blocking layer to form a thermoplastic resin layer, wherein the resin composition comprises a plant derived plastic material.
Description
Technical field
The invention belongs to packaging field, refer to have the manufacture method of laminate wrapping material for food of the material of refill layer, barrier layer and plant derivation.
Background technology
For drinks as the wrapping paper container of milk, fruit juice and mineral water be to be provided by the paper web shape laminate wrapping material that there is broken line and be printed with outside design.Paper web shape laminate wrapping material forms tubulose with Production and Packaging paper container by longitudinal sealing in the vertical.Liquid food is filled in tubular packaging material.By described tubular packaging material transverse sealing cutting in the horizontal.Along the folding described packaging material of broken line, and form net shape.
In order to prevent or extend the quality guarantee period of product in packaging material, need packaging material to there is barrier property, laminate wrapping material has thermoplastic innermost layer conventionally as polyvinyl resin layer, the aluminium foil layer of barrier layer, refill layer and polyvinyl resin outermost layer.Oxygen barrier layer except aluminium foil also comprises the plastic foil with inorganic vapor deposited layers, the ethylene-vinyl alcohol copolymer (EVOH) of lamination aerobic barrier resins or the individual layer of MXD6 nylon, and lamination has the multilayer of the coextrusion thing of barrier resins film or above-mentioned resin.Described in lamination, the common method of oxygen barrier layer comprises with adhesive the rete of barrier resin is pressed onto to the method on sandwich layer, and melting barrier resin is expressed into the method in core layer surface and to its lamination.
In order to improve the degradation property of packaging material, the paper of sandwich layer is the material of typical plant derivation.
Summary of the invention
The object of this invention is to provide a kind of laminate wrapping material of the material of plant derivation that uses and as food paper using laminate wrapping material, by simple manufacturing procedure, manufacture the method for barrier laminate wrapping material; Can simplify laminate structure, not need the adhesive of any petroleum derivation, can make the manufacture method of the barrier laminate wrapping material of laminate thickness attenuation; Even and thin barrier layer does not have as the manufacture method of the barrier laminate wrapping material of the defect generation of pin hole yet.
The present invention is achieved by the following technical solutions:
A manufacture method for laminate wrapping material for food,
To comprise the barrier resin liquid of dispersing liquid or using the solution of barrier resin as barrier layer, be coated on refill layer, dry this barrier layer, remove dispersant or the solvent of barrier resin liquid, and the resin combination that comprises the plastic material of plant derivation is expressed on dry barrier layer surface and forms thermoplastic resin.
Described barrier resin includes polyvinyl alcohol, small phyllosilicate and nano level zinc oxide.
The resin combination of the plastic material of described plant derivation includes the plastic material and the plastic material with the high SR plant derivation of the averag density of 0.910-0.925 and the swelling ratio of 1.55-1.75 of the high MFR plant derivation of the averag density of 0.910-0.925 and the melt flow rate (MFR) of 5-20.
The ratio of the amount of substance of the plastic material of the plastic material of described high MFR plant derivation and high SR plant derivation is 3:2.
The resin combination of described thermoplastic resin comprises the plasticizer of biological degradability, and has the averag density of 0.910-0.925, the melt flow rate (MFR) of 3-15 and the swelling ratio of 1.55-1.75.
The invention has the beneficial effects as follows:
Described barrier laminate wrapping material can be with simple manufacturing procedure manufacture.The thickness attenuation that described method can make laminate without any need for adhesive and the described method of petroleum derivation.And even thin barrier layer, the method for manufacturing barrier laminate wrapping material does not produce the defect as pin hole yet.
The specific embodiment
Describe by the following examples technical scheme of the present invention in detail, should be understood that, following embodiment is only exemplary, only can be used for explaining and technical scheme of the present invention being described, and can not to be interpreted as is the restriction to technical solution of the present invention.
A manufacture method for laminate wrapping material for food,
To comprise the barrier resin liquid of dispersing liquid or using the solution of barrier resin as barrier layer, be coated on refill layer, dry this barrier layer, remove dispersant or the solvent of barrier resin liquid, and the resin combination that comprises the plastic material of plant derivation is expressed on dry barrier layer surface and forms thermoplastic resin.
Described barrier resin includes polyvinyl alcohol, small phyllosilicate and nano level zinc oxide.
The resin combination of the plastic material of described plant derivation includes the plastic material and the plastic material with the high SR plant derivation of the averag density of 0.910-0.925 and the swelling ratio of 1.55-1.75 of the high MFR plant derivation of the averag density of 0.910-0.925 and the melt flow rate (MFR) of 5-20.
The ratio of the amount of substance of the plastic material of the plastic material of described high MFR plant derivation and high SR plant derivation is 3:2.
The resin combination of described thermoplastic resin comprises the plasticizer of biological degradability, and has the averag density of 0.910-0.925, the melt flow rate (MFR) of 3-15 and the swelling ratio of 1.55-1.75.
Cardboard as paper base material is to be generally used as the raw-material cardboard of packaging material in the present invention.Can use the cardboard with 400g/m2-150g/m2 basic weight (weight/unit are).In addition, can use tissue paper as thering is the glassine paper of 150g/m2-30g/m2 basic weight, then described ply of paper can be pressed onto to paper base material and resin base material as on sheet material or film.
As for the material of paper, can use and there is the clay coated paper that improves surface flatness.When paper conversion, generally carry out surface treatment as sided corona treatment or flame treatment.As required, can in processing of the present invention, use above-mentioned surface treatment.
The raw material of layered silicate comprise, the stratiform phyllosilicate mineral that the layer of magnesium silicate and alumina silicate forms.The 0.5-0.8% that the blending amount of phyllosilicate is polymer weight.
The 0.05-0.1% that the blending amount of described zinc oxide is polymer weight.At this, select zinc ion to be because zinc ion has good bactericidal effect.
Plastic material for the plant derivation of thermoplastic resin comprises PLA (PLA) in the present invention, polyglycolic acid, poly-butanedioic acid (PAS), and poly-butyric acid (PBA).
MFR (melt flow rate (MFR) (ratio)) is the numerical value when sample is extruded 10 minutes under the load of the temperature of 190 ℃, 2.16kg from the nozzle of diameter 2mm, the material with high numerical value shows high fluid ability in extruding processing, the drawing-off in extruding processing.
SR (swelling ratio) extrudes the swelling of tow in MFR measures when sample is extruded 10 minutes under the load of the temperature of 190 ℃, 2.16kg from the nozzle of diameter 2mm.When this numerical value surpasses 1, it shows swelling, and lower than 1 o'clock, it showed contraction.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification and replacement to these embodiment, scope of the present invention is by claims and be equal to and limit.
Claims (5)
1. the manufacture method of laminate wrapping material for food, is characterized in that:
To comprise the barrier resin liquid of dispersing liquid or using the solution of barrier resin as barrier layer, be coated on refill layer, dry this barrier layer, remove dispersant or the solvent of barrier resin liquid, and the resin combination that comprises the plastic material of plant derivation is expressed on dry barrier layer surface and forms thermoplastic resin.
2. the manufacture method of laminate wrapping material for food according to claim 1, is characterized in that: described barrier resin includes polyvinyl alcohol, small phyllosilicate and nano level zinc oxide.
3. the manufacture method of laminate wrapping material for food according to claim 1, is characterized in that: the resin combination of the plastic material of described plant derivation includes the plastic material and the plastic material with the high SR plant derivation of the averag density of 0.910-0.925 and the swelling ratio of 1.55-1.75 of the high MFR plant derivation of the averag density of 0.910-0.925 and the melt flow rate (MFR) of 5-20.
4. the manufacture method of laminate wrapping material for food according to claim 3, is characterized in that: the ratio of the amount of substance of the plastic material of the plastic material of described high MFR plant derivation and high SR plant derivation is 3:2.
5. the manufacture method of laminate wrapping material for food according to claim 1, it is characterized in that: the resin combination of described thermoplastic resin comprises the plasticizer of biological degradability, and there is averag density, the melt flow rate (MFR) of 3-15 and the swelling ratio of 1.55-1.75 of 0.910-0.925.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310498495.0A CN103568430A (en) | 2013-10-21 | 2013-10-21 | Manufacturing method of laminated packing material for foods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310498495.0A CN103568430A (en) | 2013-10-21 | 2013-10-21 | Manufacturing method of laminated packing material for foods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103568430A true CN103568430A (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310498495.0A Pending CN103568430A (en) | 2013-10-21 | 2013-10-21 | Manufacturing method of laminated packing material for foods |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447578A (en) * | 2017-09-21 | 2017-12-08 | 安徽宏洋包装集团有限公司 | A kind of preparation method of the ageing-resistant PVA paint of carton package high-barrier |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002120340A (en) * | 2000-10-16 | 2002-04-23 | Dainippon Printing Co Ltd | Laminated material for making paper container, and paper container made by using the same |
| CN1589353A (en) * | 2001-10-09 | 2005-03-02 | 利乐拉瓦尔集团及财务有限公司 | A laminated packaging material, a method of producing the same, as well as a packaging container produced from the packaging material |
| CN1678679A (en) * | 2002-09-04 | 2005-10-05 | 西巴特殊化学品控股有限公司 | Vapor screen composition |
| CN101528559A (en) * | 2006-10-25 | 2009-09-09 | 利乐拉瓦尔集团及财务有限公司 | Laminated paper packaging material and method of producing the same |
-
2013
- 2013-10-21 CN CN201310498495.0A patent/CN103568430A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002120340A (en) * | 2000-10-16 | 2002-04-23 | Dainippon Printing Co Ltd | Laminated material for making paper container, and paper container made by using the same |
| CN1589353A (en) * | 2001-10-09 | 2005-03-02 | 利乐拉瓦尔集团及财务有限公司 | A laminated packaging material, a method of producing the same, as well as a packaging container produced from the packaging material |
| CN1678679A (en) * | 2002-09-04 | 2005-10-05 | 西巴特殊化学品控股有限公司 | Vapor screen composition |
| CN101528559A (en) * | 2006-10-25 | 2009-09-09 | 利乐拉瓦尔集团及财务有限公司 | Laminated paper packaging material and method of producing the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107447578A (en) * | 2017-09-21 | 2017-12-08 | 安徽宏洋包装集团有限公司 | A kind of preparation method of the ageing-resistant PVA paint of carton package high-barrier |
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Application publication date: 20140212 |