CN101293411A - Multi-layer co-extrusion CPP toughening base material film and preparing technique thereof - Google Patents
Multi-layer co-extrusion CPP toughening base material film and preparing technique thereof Download PDFInfo
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- CN101293411A CN101293411A CNA2007100572388A CN200710057238A CN101293411A CN 101293411 A CN101293411 A CN 101293411A CN A2007100572388 A CNA2007100572388 A CN A2007100572388A CN 200710057238 A CN200710057238 A CN 200710057238A CN 101293411 A CN101293411 A CN 101293411A
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- 239000000463 material Substances 0.000 title claims abstract description 45
- 238000001125 extrusion Methods 0.000 title claims description 16
- 238000000034 method Methods 0.000 title abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims abstract description 13
- 229920001519 homopolymer Polymers 0.000 claims abstract description 12
- 229920001971 elastomer Polymers 0.000 claims abstract description 8
- 229920000642 polymer Polymers 0.000 claims abstract description 5
- 239000004743 Polypropylene Substances 0.000 claims description 22
- 229920001155 polypropylene Polymers 0.000 claims description 22
- 238000005516 engineering process Methods 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 14
- 238000003851 corona treatment Methods 0.000 claims description 13
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 6
- 229920002943 EPDM rubber Polymers 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 238000007766 curtain coating Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 239000013536 elastomeric material Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 239000004615 ingredient Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 206010040925 Skin striae Diseases 0.000 abstract 1
- 238000009736 wetting Methods 0.000 abstract 1
- 238000009835 boiling Methods 0.000 description 4
- 229920005604 random copolymer Polymers 0.000 description 3
- 238000012856 packing Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229920001897 terpolymer Polymers 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000012631 food intake Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Images
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- Extrusion Moulding Of Plastics Or The Like (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a toughed base material film used for common packaging and functional packaging. The invention also provides a manufacture technique for the base material film; a CPP base material film is a three-layer compound film which includes a middle layer(sandwich layer), a corona processing layer and a hot seal layer and can be manufactured by using homopolymer or multipolymer; the initial surface wetting tension value of the corona processing layer should reach 414 * 1024 to 418 * 10<-4>N/cm; the hot seal layer can be manufactured by using the homopolymer or the multipolymer; as the toughed parent material manufactured by the matched use of inorganic rigid particles and rubber is uniformly arranged in the PP material of the sandwich layer of polymer and then a corona processing is carried out to lead the surface to generate dense and rugged micro-striae, the toughed base material film of the invention has the characteristics of good toughness, good separating action on the oxygen and air in the air or the water in food as well as good lucifuge property.
Description
Technical field
The present invention relates to a kind of ordinary packing and functional package toughening base material film, the production technology of this base material film also is provided.
Background technology
Polypropylene film accounts for 20% of world PP aggregate consumption, be to be only second to injection moulding, the third-largest application product of fiber (comprising flat filament), the primary raw material of CPP film is polypropylene (PP), PP has higher heat resistance, favorable rigidity, effective iris action to water, good chemical stability, and needn't add all kinds of micromolecular compounds such as plasticizer and can have good machinability, these all are important foundations that PP can form powerful competitiveness in the packaging for foodstuff field, but in the storage and transport process of food, tend to packaging material are formed certain extruding, effects such as collision, sometimes cause the breakage of part packaging for foodstuff, cause suitable loss, in order further suitably to improve the breakage-proof ability of CPP film, convenience and the CSAT of while when the food consumption link keeps it to tear, need the toughness of CPP film be improved and adjust from the angle of material structure.On structure, the CPP film can be a monofilm, also can be multilayer complex films, and the multilayer complex films production link mainly is subjected to the research and development of raw-material selection, moulding process and former and improves the influence and the restriction of two broad aspect.
Summary of the invention
The purpose of this invention is to provide a kind of good toughness, the glassware for drinking water in airborne oxygen, air or the food is had good iris action and the good packing base material film of lucifuge performance.
The object of the present invention is achieved like this, this CPP base film is three layers of composite membrane that comprise intermediate layer (sandwich layer), corona processing layer, hot sealing layer, its weight of described intermediate layer (sandwich layer) account for whole films heavy 60%～70%, can use homopolymers or copolymer to make, its initial moistened surface tension value of described corona processing layer must reach 414 * 1024～418 * 10
-4N/cm, described hot sealing layer can use homopolymers or copolymer to make.
This its production technology of CPP base film is as follows: first step inorganic rigid particle and rubber are used the preparation toughened master batch, second the step will the preparation the toughened master batch overall distribution in polymer P P matrix, make toughness reinforcing sandwich layer PP material, the 3rd step will be made toughness reinforcing sandwich layer PP material and sided corona treatment layered material, the heat-sealing layered material is that the coextrusion curtain coating is made three layers of pending film under the speed of 3～15g/10min at the processing temperature MFR between 230 ℃-275 ℃, carried out sided corona treatment again after the 4th step, pending film was cooled to normal temperature, corona treatment plant comprises a high pressure unsteady flow motor, output transformer and two electrodes, what the film that will handle during sided corona treatment was continuous sends between two high-field electrodes, make its surface produce intensive rough little line, initial moistened surface tension value reaches 414 * 1024～418 * 10
-4N/cm promptly can be made into the film substrate of wanting.
Further, described intermediate layer (sandwich layer) its best material selection homopolymers of making, its MFR the best is 6～10g/10min.
Further, described intermediate layer (sandwich layer) its best homopolymers raw material of making material selection is polypropylene (PP).
Further, described intermediate layer (sandwich layer) needs to add inorganic rigid particle, rubber as toughened master batch.
Further, described intermediate layer (sandwich layer) needs to add inorganic rigid particle, food grade accessory ingredients, rubber as toughened master batch.
Further, the inorganic rigid particle of described intermediate layer (sandwich layer) need adding can be calcium carbonate powder, the glass microballoon that has the certain particle size size and distribute.
Further, the kind of the elastomeric material of described intermediate layer (sandwich layer) need adding can be second third glue (EPR), ethylene propylene diene rubber (EPDM), POE (POE).
Further, its MFR the best of described corona processing layer is 6～12g/10min.
Further, the best copolymer material that uses of described hot sealing layer, its MFR the best is 6～12g/10min.
Further, described multi-layer co-extrusion CPP film is used for the best random copolymer that uses of hot sealing layer raw material of 100～120 ℃ of boilings.
Further, described multi-layer co-extrusion CPP film is used for the best terpolymer that uses of hot sealing layer raw material of boiling more than 120 ℃.
The present invention compared with prior art, because inorganic rigid particle and rubber are used the toughened master batch of preparation and are evenly distributed in the core polymer layer PP material, improved the toughness of sandwich layer PP material and co-extrusion CPP film, carry out sided corona treatment again and make its surface produce intensive rough little line, initial moistened surface tension value reaches 414 * 1024～418 * 10
-4N/cm has strengthened the adhesive force of printing, and has used and make hot sealing layer by homopolymers or copolymer, so the present invention has good toughness, to the water resistance in airborne oxygen, air or the food every making good use of, and lucifuge performance good characteristics.
Description of drawings
Fig. 1 is a process chart of the present invention
The specific embodiment
This CPP base film is three layers of composite membrane that comprise intermediate layer (sandwich layer), corona processing layer, hot sealing layer, its weight of described intermediate layer (sandwich layer) account for whole films heavy 60%～70%, use the homopolymers raw material to be polypropylene (PP), its initial moistened surface tension value of described corona processing layer must reach 414 * 1024～418 * 10
-4N/cm, described hot sealing layer use the random copolymer of 100～120 ℃ of boilings to make.
When being used for more than 120 ℃ boiling, the best terpolymer material that uses of the hot sealing layer raw material of described multi-layer co-extrusion CPP film.
With reference to Fig. 1, this its production technology of CPP base film is as follows: the first step is dispersed in preparation toughened master batch in the ethylene propylene diene rubber (EPDM) with equivalent inorganic rigid particle calcium carbonate superfine powder powder, the toughened master batch of second step with preparation is evenly distributed in intermediate layer (sandwich layer) polymer poly propylene (PP) matrix, make toughness reinforcing sandwich layer PP material, the 3rd step will be made toughness reinforcing sandwich layer PP material and sided corona treatment layered material, seal under the speed that the layered material random copolymer is 6～12g/10min at the processing temperature MFR between 230 ℃-275 ℃ and extrude with three extruders and T pattern head, extruder melts material resin earlier, after resin plastifies evenly in extruder, not having the T pattern head that is detained the dead angle in inner flow passage converges, flow out die lip equably along whole machine lip width then, curtain coating should be not more than through fine finishining and surface roughness on the surface on the casting roller of any surface finish of 0.15mm, the coextrusion curtain coating is made three layers of pending film, air knife makes film and chill roll surface form the very thin air layer of one deck on suitable adjusting of the 4th step chill roll, make film evenly be cooled to normal temperature, carry out sided corona treatment again through the traction thickness measuring, corona treatment plant comprises a high pressure unsteady flow motor, output transformer and two electrodes, utilize a large amount of plasma gas that radio-frequency generator (H1F1G) produces and ozone and polyolefin surfaces molecule directly or indirectly to act on, make and produce carbonyl on its surface molecular chain and contain amine groups isopolarity group, and its surface of alligatoring, can also remove degreasing simultaneously, dry aqueous vapor and dust and dirt.Continuous the sending between two high-field electrodes of film that will handle when satisfying printing and compound needs sided corona treatment makes its surface produce intensive rough little line, and initial moistened surface tension value reaches 414 * 1024～418 * 10
-4N/cm obtains big film through operations such as side cut, rollings again, and the resulting big film of rolling needs to cut according to the width that limits then through the certain hour maturation process, obtains the CPP base material film.
Claims (10)
1, multi-layer co-extrusion CPP toughening base material film and production technology thereof, it is characterized in that: this CPP base film is three layers of composite membrane that comprise intermediate layer (sandwich layer), corona processing layer, hot sealing layer, its weight of described intermediate layer (sandwich layer) account for whole films heavy 60%～70%, can use homopolymers or copolymer to make, its initial moistened surface tension value of described corona processing layer must reach 414 * 1024～418 * 10
-4N/cm, described hot sealing layer can use homopolymers or copolymer to make.
2, according to its production technology of the described multi-layer co-extrusion CPP toughening base material film of claim 1, it is characterized in that: first step inorganic rigid particle and rubber are used the preparation toughened master batch, second the step will the preparation the toughened master batch overall distribution in polymer P P matrix, make toughness reinforcing sandwich layer PP material, the 3rd step will be made toughness reinforcing sandwich layer PP material and sided corona treatment layered material, the heat-sealing layered material is that the coextrusion curtain coating is made three layers of pending film under the speed of 3～15g/10min at the processing temperature MFR between 230 ℃-275 ℃, carried out sided corona treatment again after the 4th step, pending film was cooled to normal temperature, corona treatment plant comprises a high pressure unsteady flow motor, output transformer and two electrodes, what the film that will handle during sided corona treatment was continuous sends between two high-field electrodes, make its surface produce intensive rough little line, initial moistened surface tension value reaches 414 * 1024～418 * 10
-4N/cm promptly can be made into the film substrate of wanting.
3, according to described multi-layer co-extrusion CPP toughening base material film of claim 1 and production technology thereof, it is characterized in that: described intermediate layer (sandwich layer) its best material selection homopolymers of making, its MFR the best is 6～10g/10min.
4, according to described multi-layer co-extrusion CPP toughening base material film of claim 1 and production technology thereof, it is characterized in that: described intermediate layer (sandwich layer) its best homopolymers raw material of making material selection is polypropylene (PP).
5, according to described multi-layer co-extrusion CPP toughening base material film of claim 1 and production technology thereof, it is characterized in that: described intermediate layer (sandwich layer) needs to add inorganic rigid particle, rubber as toughened master batch.
6, according to described multi-layer co-extrusion CPP toughening base material film of claim 1 and production technology thereof, it is characterized in that: described intermediate layer (sandwich layer) needs to add inorganic rigid particle, food grade accessory ingredients, rubber as toughened master batch.
7, described according to described multi-layer co-extrusion CPP toughening base material film of claim 1 and production technology thereof, it is characterized in that: the inorganic rigid particle that intermediate layer (sandwich layer) needs to add can be calcium carbonate powder, the glass microballoon that has the certain particle size size and distribute.
8, described according to described multi-layer co-extrusion CPP toughening base material film of claim 1 and production technology thereof, it is characterized in that: described intermediate layer (sandwich layer) needs the kind of the elastomeric material of adding can be second third glue (EPR), ethylene propylene diene rubber (EPDM), POE (POE).
9, described according to described multi-layer co-extrusion CPP toughening base material film of claim 1 and production technology thereof, it is characterized in that: its MFR the best of described corona processing layer is 6～12g/10min.
10, state according to described multi-layer co-extrusion CPP toughening base material film of claim 1 and production technology thereof, it is characterized in that: the best copolymer material that uses of described hot sealing layer, its MFR the best is 6～12g/10min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100572388A CN101293411A (en) | 2007-04-27 | 2007-04-27 | Multi-layer co-extrusion CPP toughening base material film and preparing technique thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100572388A CN101293411A (en) | 2007-04-27 | 2007-04-27 | Multi-layer co-extrusion CPP toughening base material film and preparing technique thereof |
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|---|---|
| CN101293411A true CN101293411A (en) | 2008-10-29 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798425A (en) * | 2010-04-08 | 2010-08-11 | 福州佳通第一塑料有限公司 | Low temperature resistant high-transparency CPP packaging film capable of printing internally |
| CN101913279A (en) * | 2010-07-08 | 2010-12-15 | 福建凯达印务有限公司 | Toughening type three-layer coextru-laminated film and preparation method thereof |
| CN101927591A (en) * | 2010-07-08 | 2010-12-29 | 福建凯达印务有限公司 | Low temperature resistant three-layer co-extrusion composite film and preparation method thereof |
| CN101966891A (en) * | 2010-10-25 | 2011-02-09 | 黄山永新股份有限公司 | Casting polypropylene (CPP) membrane for paper packaging and preparation method thereof |
| CN102615908A (en) * | 2012-03-31 | 2012-08-01 | 福建师范大学福清分校 | Propylene-based elastomer/metallocene polyethylene (mPE)/nano silicon dioxide modified casting polypropylene (CPP) film |
| CN102689471A (en) * | 2011-03-23 | 2012-09-26 | 上海紫藤包装材料有限公司 | Soft-type semi-high-temperature cooking film and manufacturing method thereof |
| CN104260382A (en) * | 2014-08-20 | 2015-01-07 | 江苏斯瑞达新材料科技有限公司 | Production technology of heat reflective mirror film |
| CN104802480A (en) * | 2015-03-28 | 2015-07-29 | 安徽国泰印务有限公司 | Thin film and processing technology |
| CN105690946A (en) * | 2015-11-29 | 2016-06-22 | 惠州卫生职业技术学院 | Formula of CPP film and production technology thereof |
| CN109228595A (en) * | 2018-09-11 | 2019-01-18 | 嘉兴鹏翔包装材料有限公司 | A kind of gas flush packaging high transparency CPP film |
| CN109760602A (en) * | 2019-02-27 | 2019-05-17 | 上海华迎汽车零部件有限公司 | The rear cover and return moldings plate and its manufacture craft of a kind of car trunk |
| CN112689554A (en) * | 2018-09-14 | 2021-04-20 | Ａｇｃ株式会社 | Method for producing pellet, and ion exchange membrane |
-
2007
- 2007-04-27 CN CNA2007100572388A patent/CN101293411A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101798425B (en) * | 2010-04-08 | 2011-09-28 | 福州佳通第一塑料有限公司 | Low temperature resistant high-transparency CPP packaging film capable of printing internally |
| CN101798425A (en) * | 2010-04-08 | 2010-08-11 | 福州佳通第一塑料有限公司 | Low temperature resistant high-transparency CPP packaging film capable of printing internally |
| CN101913279B (en) * | 2010-07-08 | 2014-02-19 | 福建凯达印务有限公司 | Toughening type three-layer coextru-laminated film and preparation method thereof |
| CN101927591A (en) * | 2010-07-08 | 2010-12-29 | 福建凯达印务有限公司 | Low temperature resistant three-layer co-extrusion composite film and preparation method thereof |
| CN101927591B (en) * | 2010-07-08 | 2013-09-25 | 福建凯达集团有限公司 | Low temperature resistant triple coextrusion composite film |
| CN101913279A (en) * | 2010-07-08 | 2010-12-15 | 福建凯达印务有限公司 | Toughening type three-layer coextru-laminated film and preparation method thereof |
| CN101966891A (en) * | 2010-10-25 | 2011-02-09 | 黄山永新股份有限公司 | Casting polypropylene (CPP) membrane for paper packaging and preparation method thereof |
| CN102689471A (en) * | 2011-03-23 | 2012-09-26 | 上海紫藤包装材料有限公司 | Soft-type semi-high-temperature cooking film and manufacturing method thereof |
| CN102615908B (en) * | 2012-03-31 | 2015-01-21 | 福建师范大学福清分校 | Propylene-based elastomer/metallocene polyethylene (mPE)/nano silicon dioxide modified casting polypropylene (CPP) film |
| CN102615908A (en) * | 2012-03-31 | 2012-08-01 | 福建师范大学福清分校 | Propylene-based elastomer/metallocene polyethylene (mPE)/nano silicon dioxide modified casting polypropylene (CPP) film |
| CN104260382A (en) * | 2014-08-20 | 2015-01-07 | 江苏斯瑞达新材料科技有限公司 | Production technology of heat reflective mirror film |
| CN104260382B (en) * | 2014-08-20 | 2016-08-17 | 江苏斯瑞达新材料科技有限公司 | A kind of production technology of heat reflection minute surface film |
| CN104802480A (en) * | 2015-03-28 | 2015-07-29 | 安徽国泰印务有限公司 | Thin film and processing technology |
| CN105690946A (en) * | 2015-11-29 | 2016-06-22 | 惠州卫生职业技术学院 | Formula of CPP film and production technology thereof |
| CN109228595A (en) * | 2018-09-11 | 2019-01-18 | 嘉兴鹏翔包装材料有限公司 | A kind of gas flush packaging high transparency CPP film |
| CN112689554A (en) * | 2018-09-14 | 2021-04-20 | Ａｇｃ株式会社 | Method for producing pellet, and ion exchange membrane |
| CN109760602A (en) * | 2019-02-27 | 2019-05-17 | 上海华迎汽车零部件有限公司 | The rear cover and return moldings plate and its manufacture craft of a kind of car trunk |
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Open date: 20081029 |