CN104129120A - Linear easy-tearing packaging-use unstretched aluminum-plated thin film - Google Patents
Linear easy-tearing packaging-use unstretched aluminum-plated thin film Download PDFInfo
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- CN104129120A CN104129120A CN201410328913.6A CN201410328913A CN104129120A CN 104129120 A CN104129120 A CN 104129120A CN 201410328913 A CN201410328913 A CN 201410328913A CN 104129120 A CN104129120 A CN 104129120A
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Abstract
The invention relates to a linear easy-tearing packaging-use unstretched aluminum-plated thin film. The thin film is characterized in comprising a four-layer structure. The four layers are respectively an aluminum plating layer, a corona layer, an intermediate layer, and a heat-seal layer. According to the invention, a base film is produced with a three-layer co-extrusion casting method, and vacuum aluminum layer plating is carried out on the surface of the corona layer of the base film. The base film comprises the corona layer, the intermediate layer, and the heat-seal layer. Compared with prior arts, the linear easy-tearing packaging-use unstretched aluminum-plated thin film has the following advantages: the thin film has good linear easy-tearing performance; the thin film has good moisturizing performance; and the thin film has excellent gas barrier property.
Description
Technical field
The present invention relates to a kind of linearity and easily tear the metallized film that do not stretch for packing, this film two-step method is produced, first adopt three-layer co-extruded the tape casting to produce basement membrane, then on the corona layer surface of this basement membrane, carry out vacuum aluminum-coated, the manufactured goods that obtain have outstanding straight line and easily tear feature and gas barrier property, after compound bag, can be used for the packing of varieties of food items, medicine etc., and easy free-hand tearing, easy to use in any direction.
Background technology
At present, commercially available barrier packaging material mostly is plural layers composite construction, and common structure is: BOPET-VMCPP, BOPP-VMCPP etc., composite membrane can provide better moisturizing and gas barrier property, but has the not shortcoming of easily openable of packaging bag.Aluminizer on market, except oriented film, un-stretched polypropylene, polyethylene toughness are all better, are all difficult for tearing, and cannot meet linear requirement of easily tearing.
Summary of the invention
The present invention is directed to the problems referred to above, design a kind of linearity and easily tear the metallized film that do not stretch for packing, can select different types of polypropylene or vinyon particle to produce basement membrane by three-layer co-extruded the tape casting, then carry out vacuum aluminum-coated on this basement membrane corona layer surface.Production technology is simple, low production cost, and the linear line easy-tear performance of the film of producing is good, and moisturizing and gas barrier property are outstanding.
Linearity is easily torn packing with the metallized film that do not stretch, and it is characterized by: film comprises four-layer structure, is respectively: aluminium coated, corona layer, intermediate layer and hot sealing layer; First adopt three-layer co-extruded the tape casting to produce basement membrane, then carry out being coated with of vacuum aluminium coated layer on the corona layer surface of basement membrane, described basement membrane is for comprising corona layer, intermediate layer and hot sealing layer.
As optimal way, described base membrane layer thickness rate example is respectively: corona layer 5%-60%, intermediate layer 10%-80%, hot sealing layer 5%-60%.
As optimal way, described corona layer material is polyolefin, and described corona layer needs effects on surface to carry out sided corona treatment or plasma treatment, to strengthen the adhesion with aluminium, increases combined strength bination; The main material in intermediate layer is polyolefin, special ethylenic copolymer, and this layer mainly provides film support, linear line easy-tear performance; The main material of hot sealing layer is polyolefin, antitack agent etc., and this layer mainly provides heat sealability.
Described film thickness scope is 10-80 micron.
Compared with prior art, this linearity is easily torn to pack and is had following advantage with the metallized film that do not stretch:
1, film has good linear tearability energy;
2, film performance of keeping humidity is good;
3, gas barrier property is outstanding.
Accompanying drawing explanation
Fig. 1 is that linearity is easily torn the metallized film structural representation that do not stretch for packing;
Fig. 2 is that linearity is easily torn the metallized film production technological process that do not stretch for packing.
concrete embodiment
Below in conjunction with the drawings and the specific embodiments, the present invention is further qualified:
Embodiment 1:
As shown in Figure 1: a kind of linearity is easily torn the metallized film that do not stretch for packing, and film comprises four-layer structure, is respectively: aluminium coated 1, corona layer 2, intermediate layer 3 and hot sealing layer 4; First adopt three-layer co-extruded the tape casting to produce basement membrane, then carry out being coated with of vacuum aluminium coated layer on corona layer 2 surface of basement membrane, described basement membrane is for comprising corona layer 2, intermediate layer 3 and hot sealing layer 4, and the ratio that corona layer 2 accounts for thickness is 5%, and main material is polyolefin.This layer needs effects on surface to carry out sided corona treatment or plasma treatment, to strengthen the adhesion with aluminium, increases combined strength bination; The ratio that intermediate layer 3 accounts for thickness is 80%, and main material is polyolefin, special ethylenic copolymer, and this layer mainly provides film support, linear line easy-tear performance; The ratio that hot sealing layer 4 accounts for thickness is 5%, and main material is polyolefin, antitack agent etc., and it is 10% that this layer mainly provides the ratio that heat sealability, aluminium coated account for thickness.
Embodiment 2:
As shown in Figure 1: a kind of linearity is easily torn the metallized film that do not stretch for packing, and film comprises four-layer structure, is respectively: aluminium coated 1, corona layer 2, intermediate layer 3 and hot sealing layer 4; First adopt three-layer co-extruded the tape casting to produce basement membrane, then carry out being coated with of vacuum aluminium coated layer on corona layer 2 surface of basement membrane, described basement membrane is for comprising corona layer 2, intermediate layer 3 and hot sealing layer 4.The ratio that corona layer 2 accounts for thickness is 20%, and main material is polyolefin, and this layer needs effects on surface to carry out sided corona treatment or plasma treatment, to strengthen the adhesion with aluminium, increases combined strength bination; The ratio that intermediate layer 3 accounts for thickness is 60%, and main material is polyolefin, special ethylenic copolymer, and this layer mainly provides film support, linear line easy-tear performance; The ratio that hot sealing layer 4 accounts for thickness is 15%, and main material is polyolefin, antitack agent etc., and it is 5% that this layer mainly provides the ratio that heat sealability, aluminium coated account for thickness.
Embodiment 3:
As shown in Figure 1: a kind of linearity is easily torn the metallized film that do not stretch for packing, and film comprises four-layer structure, is respectively: aluminium coated 1, corona layer 2, intermediate layer 3 and hot sealing layer 4; First adopt three-layer co-extruded the tape casting to produce basement membrane, then carry out being coated with of vacuum aluminium coated layer on corona layer 2 surface of basement membrane, described basement membrane is for comprising corona layer 2, intermediate layer 3 and hot sealing layer 4.The ratio that corona layer 2 accounts for thickness is 60%, and main material is polyolefin, and this layer needs effects on surface to carry out sided corona treatment or plasma treatment, to strengthen the adhesion with aluminium, increases combined strength bination; The ratio that intermediate layer 3 accounts for thickness is 10%, and main material is polyolefin, special ethylenic copolymer, and this layer mainly provides film support, linear line easy-tear performance; The ratio that hot sealing layer 4 accounts for thickness is 25%, and main material is polyolefin, antitack agent etc., and it is 5% that this layer mainly provides the ratio that heat sealability, aluminium coated account for thickness.
Embodiment 4:
As shown in Figure 1: a kind of linearity is easily torn the metallized film that do not stretch for packing, and film comprises four-layer structure, is respectively: aluminium coated 1, corona layer 2, intermediate layer 3 and hot sealing layer 4; First adopt three-layer co-extruded the tape casting to produce basement membrane, then carry out being coated with of vacuum aluminium coated layer on corona layer 2 surface of basement membrane, described basement membrane is for comprising corona layer 2, intermediate layer 3 and hot sealing layer 4.The ratio that corona layer 2 accounts for thickness is 20%, and main material is polyolefin.This layer needs effects on surface to carry out sided corona treatment or plasma treatment, to strengthen the adhesion with aluminium, increases combined strength bination; The ratio that intermediate layer 3 accounts for thickness is 15%, and main material is polyolefin, special ethylenic copolymer, and this layer mainly provides film support, linear line easy-tear performance; The ratio that hot sealing layer 4 accounts for thickness is 60%, and main material is polyolefin, antitack agent etc., and it is 5% that this layer mainly provides the ratio that heat sealability, aluminium coated account for thickness.
As shown in Figures 1 and 2, a kind of linearity described in above-described embodiment 1-4 is easily torn the metallized film that do not stretch for packing, production process is: by raw material corona layer 2 raw material, intermediate layer 3 raw materials and hot sealing layer 4 are prepared burden respectively and stir, after completing batching, by extruder, enter the flat Integrated Films of T-shaped die head respectively, cooling through chill roll again, then carry out rolling, basement membrane after rolling is through 40-60 °, the maturing process of 6-8 hour, then carry out vacuum coating, after plating aluminium coated 1, cut, obtain a kind of linearity of last finished product and easily tear the metallized film that do not stretch for packing.
Thickness range of the present invention is 10-80 micron, and preferred thickness range is 18-40 micron.
The main material that the present invention chooses is exemplified below, and the raw material of identical material has many manufacturers produce, but is not limited to this:
1# Singapore, TPC, FS3028, isotaxy HOPP
Not containing antiplastering aid and slipping agent.TM（melt?point）=163℃，MI=3.5
2# Korea S, Samsung, HF429, isotactic HOPP
TM（melt?point）=162℃，MI=8.0
3# pacifies color matching, CHAB-10, and synthetic silica, active ingredient accounts for 10%
4# Dow Chemical, 2047G, metallocene high density polyethylene (HDPE)
Not containing antiplastering aid and slipping agent.Density 0.917, MI=2.3
5# U.S. Mobil, 151BW, low density polyethylene (LDPE)
Not containing antiplastering aid and slipping agent.Density 0.933, MI=3.0
6# Britain, Ineos, F4330, metallocene high density polyethylene (HDPE)
Not containing antiplastering aid and slipping agent.Density 0.938, MI=4.0
7# Singapore, TPC, FL7641L, polypropylene trimer
TM（melt?point）=133℃，MI=7.0
8# Singapore, TPC, FL7540L, polypropylene copolymer
TM（melt?point）=138℃，MI=7.0
The 9# U.S., Tao Shi, EG8200, polyolefin elastomer
TM（melt?point）=145℃，MI=5.0
10# Japan, zeonex, E008, special ethylenic copolymer
TM（melt?point）=138℃，MI=25
Best embodiment of the present invention for (basement membrane structure is: corona layer/intermediate layer/hot sealing layer):
1、8#100%/1#50%+10#50%/7#100%
2、5#84%+9#10%+3#6%/6#70%+10#30%/4#100%
Consider film performance, cost, each material rate and the bed thickness ratio of related film corona layer of the present invention, intermediate layer, hot sealing layer can make the appropriate adjustments.
Claims (4)
1. linearity is easily torn packing with the metallized film that do not stretch, and it is characterized by: comprise four-layer structure, be respectively: aluminium coated, corona layer, intermediate layer and hot sealing layer; First adopt three-layer co-extruded the tape casting to produce basement membrane, then carry out being coated with of vacuum aluminium coated layer on the corona layer surface of basement membrane, described basement membrane is for comprising corona layer, intermediate layer and hot sealing layer.
2. a kind of linearity according to claim 1 is easily torn packing with the metallized film that do not stretch, and it is characterized in that: described base membrane layer thickness rate example is respectively: corona layer 5%-60%, intermediate layer 10%-80%, hot sealing layer 5%-60%.
3. according to claim 1 or a kind of linearity claimed in claim 2, easily tear the metallized film that do not stretch for packing, it is characterized in that: described corona layer material is polyolefin, described corona layer needs effects on surface to carry out sided corona treatment or plasma treatment, to strengthen the adhesion with aluminium, increases combined strength bination; The main material in intermediate layer is polyolefin, special ethylenic copolymer, and this layer mainly provides film support, linear line easy-tear performance; The main material of hot sealing layer is polyolefin, antitack agent etc., and this layer mainly provides heat sealability.
4. linearity is easily torn packing with the metallized film that do not stretch, and it is characterized in that: film thickness scope is 10-80 micron.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410328913.6A CN104129120A (en) | 2014-07-10 | 2014-07-10 | Linear easy-tearing packaging-use unstretched aluminum-plated thin film |
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| CN201410328913.6A CN104129120A (en) | 2014-07-10 | 2014-07-10 | Linear easy-tearing packaging-use unstretched aluminum-plated thin film |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106113856A (en) * | 2016-07-05 | 2016-11-16 | 安徽双津实业有限公司 | A kind of un-stretched polypropylene film |
| CN108004519A (en) * | 2017-08-09 | 2018-05-08 | 嘉兴鹏翔包装材料有限公司 | Medicine is packed for high-barrier VMCPP method for manufacturing thin film and medicine and is packed for high-barrier VMCPP films automatically automatically |
| CN108274863A (en) * | 2018-01-31 | 2018-07-13 | 江苏利特尔绿色包装股份有限公司 | A kind of high-barrier easily tears pearly-lustre composite membrane and its manufacture formula |
| CN109016763A (en) * | 2018-08-24 | 2018-12-18 | 河南瑞格玛新材料有限公司 | One kind is aluminized grade PP casting films and its a production technology |
| CN109263200A (en) * | 2018-09-30 | 2019-01-25 | 黄山永新股份有限公司 | A kind of two-way linear easily tears polyethylene film and its production technology |
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| GB2397065A (en) * | 2003-01-10 | 2004-07-14 | Rexam Med Packaging Ltd | Polymeric film with linear tear properties |
| CN101638158A (en) * | 2008-08-01 | 2010-02-03 | 三得为株式会社 | Packaging material |
| CN204109471U (en) * | 2014-07-10 | 2015-01-21 | 安徽双津实业有限公司 | A kind of linearly easily tearing is packed with the metallized film that do not stretch |
-
2014
- 2014-07-10 CN CN201410328913.6A patent/CN104129120A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2397065A (en) * | 2003-01-10 | 2004-07-14 | Rexam Med Packaging Ltd | Polymeric film with linear tear properties |
| CN101638158A (en) * | 2008-08-01 | 2010-02-03 | 三得为株式会社 | Packaging material |
| CN204109471U (en) * | 2014-07-10 | 2015-01-21 | 安徽双津实业有限公司 | A kind of linearly easily tearing is packed with the metallized film that do not stretch |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106113856A (en) * | 2016-07-05 | 2016-11-16 | 安徽双津实业有限公司 | A kind of un-stretched polypropylene film |
| CN108004519A (en) * | 2017-08-09 | 2018-05-08 | 嘉兴鹏翔包装材料有限公司 | Medicine is packed for high-barrier VMCPP method for manufacturing thin film and medicine and is packed for high-barrier VMCPP films automatically automatically |
| CN108274863A (en) * | 2018-01-31 | 2018-07-13 | 江苏利特尔绿色包装股份有限公司 | A kind of high-barrier easily tears pearly-lustre composite membrane and its manufacture formula |
| CN109016763A (en) * | 2018-08-24 | 2018-12-18 | 河南瑞格玛新材料有限公司 | One kind is aluminized grade PP casting films and its a production technology |
| CN109263200A (en) * | 2018-09-30 | 2019-01-25 | 黄山永新股份有限公司 | A kind of two-way linear easily tears polyethylene film and its production technology |
| CN109263200B (en) * | 2018-09-30 | 2020-08-25 | 黄山永新股份有限公司 | Bidirectional linear easy-to-tear polyethylene film and production process thereof |
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Application publication date: 20141105 |
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