CN104558990A - Polyvinyl alcohol film for food packaging - Google Patents
Polyvinyl alcohol film for food packaging Download PDFInfo
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- CN104558990A CN104558990A CN201410726990.7A CN201410726990A CN104558990A CN 104558990 A CN104558990 A CN 104558990A CN 201410726990 A CN201410726990 A CN 201410726990A CN 104558990 A CN104558990 A CN 104558990A
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Abstract
The invention discloses a polyvinyl alcohol film for food packaging. The polyvinyl alcohol film is prepared from the following raw materials in parts by weight: 50-90 parts of polyvinyl alcohol resin, 0.5-5 parts of filler, 1-10 parts of plasticizer, 0.5-10 parts of modifying agent, 0.5-10 parts of metallocene, 3-10 parts of linear polyethylene and 0.1-2 parts of edible pigments. The polyvinyl alcohol film for food packaging disclosed by the invention has low cost and good properties.
Description
Technical field
The invention belongs to chemical technology field, particularly a kind of PVA (PVOH) FILM for food product pack.
Background technology
The output of China's plastics film accounts for 20% of plastics ultimate production, is increase of production one of classification faster in plastics.Along with the fields such as China's packaging, agricultural not only increase the demand of plastics film, the demand estimating China plastics film every year by with more than 9% speed increment, its market outlook are very wide.
In Plastic Packaging Materials, the market demand amplification of thin-film material is maximum, accounts for 46% of Plastic Packaging Materials total amount.Plastic film mainly comprises: heat shrinkable package film, winding package film, food sterile packed film, fruit-vegetable plastic wrap, liquids packaging film etc.Along with China's plastics film industry equipment improves constantly, the advanced level reaching developed country had, emerge a collection of product innovation, such as, biaxially oriented film as substrate of composite package not only overcomes the situation of long-term import, and annual also outlet about 300,000 tons now, earn foreign exchange more than 30 hundred million dollars.In China, the quantity development of the packaging film manufacturing concern of scale rapidly, has reached 2240 at present.
Polyvinyl alcohol (PVA) is a kind of Biodegradable polymer material of excellent combination property, can by Non oil-based route scale operation, cheap, its oil resistant, solvent resistant and gas barrier property are outstanding, in the packagings such as organic solvent, have unique advantage.The application of current PVA is based on solution method, thin-film material is prepared by casting film-forming, but solution machine-shaping need experience dissolving and drying process, have that complex process, cost are high, the shortcoming such as yield poorly, composite packaging cannot be prepared by thermoplastic processing, and be difficult to prepare the complex-shaped goods of heavy wall pipe.Therefore, it is the key overcome the above problems that exploitation PVA thermoplastic processing technology prepares film, is also current one of main research direction both at home and abroad.
Summary of the invention
The object of this invention is to provide a kind of PVA (PVOH) FILM for food product pack, to overcome the present situation that in prior art, food product packing film not environmentally, security is bad and cost is high.Technical scheme provided by the present invention is:
For a PVA (PVOH) FILM for food product pack, count by weight and be made up of following raw material: polyvinyl alcohol resin 50 ~ 90 parts, filler 0.5 ~ 5 part, 1 ~ 10 part, softening agent, properties-correcting agent 0.5 ~ 10 part, metallocene 0.5 ~ 10 part, linear polyethylene 3 ~ 10 parts and food dye 0.1 ~ 2 part.
As preferably, for a PVA (PVOH) FILM for food product pack, count by weight and be made up of following raw material: polyvinyl alcohol resin 70 ~ 90 parts, filler 0.5 ~ 5 part, 1 ~ 10 part, softening agent, properties-correcting agent 0.5 ~ 5 part, metallocene 1.5 ~ 8 parts, linear polyethylene 4 ~ 8 parts and food dye 0.2 ~ 1 part.
As preferably, described filler is at least one in organic filler and mineral filler; Described organic filler is wood powder, cloth waste, paper and various fabric fibre; Described mineral filler is glass fibre, diatomite, asbestos, carbon black.
As preferably, described softening agent is at least one in dinoctyl phthalate (DNOP or DnOP), butyl benzyl phthalate (BBP), di-sec-octyl phthalate (DCP), dicyclohexyl phthalate (DCHP), dibutyl phthalate (DBP), diisobutyl phthalate (DIBP), dimethyl phthalate (DMP), diethyl phthalate (DEP), diisononyl phthalate (DINP), Di Iso Decyl Phthalate.
As preferably, described properties-correcting agent is at least one in CPE, ACR, MBS, SBS, ABS and EVA.
As preferably, described food dye is at least one in titanium dioxide, zinc oxide, lithopone.
In addition, present invention also offers the preparation method of this high-temp liquid plastics film, it is characterized in that, comprise the following steps:
(1) measure each component by formula, mixing, and stir, adopt back the mode of heating up in a steamer, control temperature 100 ~ 150 DEG C, makes material thoroughly dissolve, obtains mixed solution;
(2) mixed solution is left standstill 1 ~ 2 hour at 100 ~ 130 DEG C, pour the advection mould being preheated to 90 ~ 100 DEG C into, curtain coating, on the mirror steel plate of room temperature, makes the rapid gel of mixed solution chilling, and it is peeled off obtained high-temp liquid plastics film from steel plate.
Compared with prior art, the technical program has following beneficial effect:
1, PVA (PVOH) FILM production technique of the present invention is simple, and raw materials cost is low, is easy to large-scale promotion and use.
2, the PVA (PVOH) FILM formula for food product pack of the present invention is reasonable, and intensity is good.
Embodiment
Below in conjunction with concrete example, the present invention is further detailed explanation.The herbal medicine mentioned in embodiment is by States Pharmacopoeia specifications medicinal part
embodiment 1:
By following component part meter by weight ratio: polyvinyl alcohol resin 70 parts, wood powder 0.5 part, dinoctyl phthalate 1 part, CPE 0.5 part, metallocene 1.5 parts, linear polyethylene 4 parts and titanium dioxide 0.2 part.
Present invention also offers the preparation method of this PVA (PVOH) FILM, it is characterized in that, comprise the following steps:
(1) measure each component by formula, mixing, and stir, adopt back the mode of heating up in a steamer, control temperature 100 DEG C, makes material thoroughly dissolve, obtains mixed solution;
(2) mixed solution is left standstill 1 hour at 100 DEG C, pour the advection mould being preheated to 100 DEG C into, curtain coating, on the mirror steel plate of room temperature, makes the rapid gel of mixed solution chilling, and it is peeled off obtained high-temp liquid plastics film from steel plate.
embodiment 2:
By following component part meter by weight ratio: polyvinyl alcohol resin 90 parts, 5 parts, diatomite, dibutyl phthalate 10 parts, MBS 5 parts, metallocene 8 parts, linear polyethylene 8 parts and 1 part, zinc oxide.
Present invention also offers the preparation method of this PVA (PVOH) FILM, it is characterized in that, comprise the following steps:
(1) measure each component by formula, mixing, and stir, adopt back the mode of heating up in a steamer, control temperature 150 DEG C, makes material thoroughly dissolve, obtains mixed solution;
(2) mixed solution is left standstill 2 hours at 130 DEG C, pour the advection mould being preheated to 100 DEG C into, curtain coating, on the mirror steel plate of room temperature, makes the rapid gel of mixed solution chilling, and it is peeled off obtained high-temp liquid plastics film from steel plate.
embodiment 3:
By following component part meter by weight ratio: polyvinyl alcohol resin 85 parts, 1.5 parts, asbestos, Di Iso Decyl Phthalate 3 parts, ABS 2 parts, metallocene 3 parts, linear polyethylene 5 parts and lithopone 0.5 part.
Present invention also offers the preparation method of this PVA (PVOH) FILM, it is characterized in that, comprise the following steps:
(1) measure each component by formula, mixing, and stir, adopt back the mode of heating up in a steamer, control temperature 120 DEG C, makes material thoroughly dissolve, obtains mixed solution;
(2) mixed solution is left standstill 1.5 hours at 125 DEG C, pour the advection mould being preheated to 95 DEG C into, curtain coating, on the mirror steel plate of room temperature, makes the rapid gel of mixed solution chilling, and it is peeled off obtained high-temp liquid plastics film from steel plate.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (6)
1. for a PVA (PVOH) FILM for food product pack, count by weight and be made up of following raw material: polyvinyl alcohol resin 50 ~ 90 parts, filler 0.5 ~ 5 part, 1 ~ 10 part, softening agent, properties-correcting agent 0.5 ~ 10 part, metallocene 0.5 ~ 10 part, linear polyethylene 3 ~ 10 parts and food dye 0.1 ~ 2 part.
2. as claimed in claim 1 for the PVA (PVOH) FILM of food product pack, it is characterized in that, count by weight and be made up of following raw material: polyvinyl alcohol resin 70 ~ 90 parts, filler 0.5 ~ 5 part, 1 ~ 10 part, softening agent, properties-correcting agent 0.5 ~ 5 part, metallocene 1.5 ~ 8 parts, linear polyethylene 4 ~ 8 parts and food dye 0.2 ~ 1 part.
3. as claimed in claim 1 or 2 for the PVA (PVOH) FILM of food product pack, it is characterized in that, described filler is at least one in organic filler and mineral filler; Described organic filler is wood powder, cloth waste, paper and various fabric fibre; Described mineral filler is glass fibre, diatomite, asbestos, carbon black.
4. as claimed in claim 1 or 2 for the PVA (PVOH) FILM of food product pack, it is characterized in that, described softening agent is dinoctyl phthalate (DNOP or DnOP), butyl benzyl phthalate (BBP), di-sec-octyl phthalate (DCP), dicyclohexyl phthalate (DCHP), dibutyl phthalate (DBP), diisobutyl phthalate (DIBP), dimethyl phthalate (DMP), diethyl phthalate (DEP), diisononyl phthalate (DINP), at least one in Di Iso Decyl Phthalate.
5., as claimed in claim 1 or 2 for the PVA (PVOH) FILM of food product pack, it is characterized in that, described properties-correcting agent is at least one in CPE, ACR, MBS, SBS, ABS and EVA.
6. high-temp liquid plastics film as claimed in claim 1 or 2, it is characterized in that, described food dye is at least one in titanium dioxide, zinc oxide, lithopone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410726990.7A CN104558990A (en) | 2014-12-03 | 2014-12-03 | Polyvinyl alcohol film for food packaging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410726990.7A CN104558990A (en) | 2014-12-03 | 2014-12-03 | Polyvinyl alcohol film for food packaging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104558990A true CN104558990A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410726990.7A Pending CN104558990A (en) | 2014-12-03 | 2014-12-03 | Polyvinyl alcohol film for food packaging |
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| Country | Link |
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| CN (1) | CN104558990A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105131344A (en) * | 2015-08-18 | 2015-12-09 | 南宁市聚祥塑料制品有限责任公司 | Water-soluble food packaging film |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864132A (en) * | 2010-05-26 | 2010-10-20 | 四川大学 | Fusion preparation method of polyvinyl alcohol film |
-
2014
- 2014-12-03 CN CN201410726990.7A patent/CN104558990A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101864132A (en) * | 2010-05-26 | 2010-10-20 | 四川大学 | Fusion preparation method of polyvinyl alcohol film |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105131344A (en) * | 2015-08-18 | 2015-12-09 | 南宁市聚祥塑料制品有限责任公司 | Water-soluble food packaging film |
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Application publication date: 20150429 |
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| WD01 | Invention patent application deemed withdrawn after publication |