CN101298202A - Stretching film for low temperature heat sealing between paper and plastic film or between plastic films and manufacturing method thereof - Google Patents
Stretching film for low temperature heat sealing between paper and plastic film or between plastic films and manufacturing method thereof Download PDFInfo
- Publication number
- CN101298202A CN101298202A CNA2008100289139A CN200810028913A CN101298202A CN 101298202 A CN101298202 A CN 101298202A CN A2008100289139 A CNA2008100289139 A CN A2008100289139A CN 200810028913 A CN200810028913 A CN 200810028913A CN 101298202 A CN101298202 A CN 101298202A
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- China
- Prior art keywords
- temperature heat
- low
- layer
- sealing
- plastic sheeting
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92923—Calibration, after-treatment or cooling zone
Abstract
The invention relates to a tension film thermally sealed between paper and a plastic film or between the plastic films under low temperature, and a manufacturing method thereof; the tension film comprises a supporting layer and a low temperature thermal sealing layer; the low temperature thermal sealing layer can be directly thermally sealed with paper material, plastic films or the low temperature thermal sealing layer by the rolling of a hot roller under the temperature less than 100 DEG C. The manufacturing method comprises the following steps: proportioning, melting and extrusion; forming the film by the supporting layer; sequentially carrying out preheating, longitudinal tensioning and thermal shaping to the film by a longitudinal tensioning machine; extruding the low temperature thermal sealing layer and composing the low temperature thermal sealing layer with the supporting layer by hot pressing; transverse preheating; tensioning ratio of 6-12 times of transverse tensioning and thermal shaping; supporting layer corona or flame disposal; and coiling. Toxic gas is not generated when the tension film is composed, the production links are reduced, the production efficiency is improved and the production cost is reduced.
Description
Technical field:
The present invention relates to low-temperature heat-sealing closes between a kind of paper and plastic sheeting or the plastic sheeting oriented film and manufacture method.
Background technology:
At present, industrially be applied to way compound between paper and plastic sheeting or the plastic sheeting and mainly contain following several: (1) glue method (dry method is compound and wet method is compound), yet thereby this method toxic solvent serious environment pollution more to airborne release; (2) solvent-free composite algorithm, the initial bonding strength of this method gained joint product is extremely low; (3) precoating method, though this method can be without solvent, operation is more, increases cost.In addition, said method gained joint product adhesive linkage peel strength time dependence is more obvious; (4) Chinese patent ZL03226653.7 and 200620154717.2 and 200710006100.5 disclosed no glue composite membranes and paper thereof or to mould plastic composite structure be a kind of commercial run than environmental protection, but its paper plastic structure is relatively poor to the adaptability of paper, narrow application range, no glue composite membrane processing cost height.
Summary of the invention:
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of applicability wider, the oriented film that low-temperature heat-sealing closes between paper that cost is lower and plastic sheeting or the plastic sheeting.This film and paper or other film compound tense need not be coated with glue, can finish compoundly by the low-temperature heat-sealing layer with being contacted by compound object, and compound tense can not produce toxic gas.
The object of the present invention is achieved like this:
The oriented film that low-temperature heat-sealing closes between a kind of paper and plastic sheeting or the plastic sheeting, it is characterized in that: it comprises that supporting layer and low-temperature heat-sealing close layer, and low-temperature heat-sealing closes layer for through the hot-rolling roll extrusion below 100 ℃ directly and paper wood, preprint paper wood, plastic sheeting, preprint plastic sheeting or self heat sealing.
The manufacture method of the oriented film that low-temperature heat-sealing closes between a kind of paper and plastic sheeting or the plastic sheeting is characterized in that processing as follows:
A. prepare burden,
Main material: polypropylene: contain the 55-95% that 60%-100% accounts for the film gross weight;
Auxiliary material: 1, polyolefinic modified by maleic acid anhydride graft thing accounts for the 2-30% of film gross weight;
2, additive masterbatch accounts for the 0.5-30% of film gross weight;
Wherein antitack agent accounts for 0-2%; Antistatic additive accounts for 0-5%; The delustring masterbatch accounts for 0-20%; Titanium dioxide and calcium carbonate account for 0-20%.
B. will prepare burden adds in the corresponding extruder 180 ℃-280 ℃ and carries out fusion, plasticizing, pushes and confluxes in T type or rack type die, extrudes in 180 ℃-280 ℃ by die head;
C. with the cooling device cooling of the die head extrudate of supporting layer, form diaphragm through 10 ℃-60 ℃;
D. diaphragm carries out preheating, longitudinal stretching and thermal finalization successively through longitudinal stretching machine, 100 ℃ of-170 ℃ of preheatings, and the longitudinal stretching multiplying power is 2-6, and draft temperature is 60 ℃-160 ℃, and the temperature of thermal finalization is 90 ℃-170 ℃;
At this moment, at least the resin of one deck low-temperature heat-sealing layered material molten condition flows out from another die head, batchings such as polyolefinic modified by maleic acid anhydride graft thing to be added in the corresponding extruder equally and carry out fusion, plasticizing, extruding is also confluxed in T type or rack type die, in extruding, carry out the compound cross directional stretch preheating zone that enters again of hot pressing by die head with film behind the longitudinal stretching;
E. through 100 ℃ of-190 ℃ of preheatings, the cross directional stretch multiplying power is that 6-12, draft temperature are 60 ℃ of-170 ℃ of cross directional stretch, and temperature range is 90 ℃-190 ℃ and carries out thermal finalization;
F. the outermost layer to the supporting layer (the not side that contacts with the low-temperature heat-sealing layer) of composite membrane behind the cross directional stretch carries out conventional corona or flame treatment;
G. rolling.
Described supporting layer is through elder generation's horizontal Biaxially oriented polypropylene layer in vertical back, this supporting layer can be that one deck or two layers or three layers or four layers of coextrusion biaxial tension form, and can appoint one or more layers interpolation therein or not add antitack agent, antistatic additive, delustring masterbatch, titanium dioxide and calcium carbonate.
It is compoundly to form through cross directional stretch with the supporting layer behind longitudinal stretching is online that described low-temperature heat-sealing closes layer again, be that low-temperature heat-sealing closes layer only through cross directional stretch, without longitudinal stretching, it can be that one deck or two layers or three layers or four layers of coextrusion form that this low-temperature heat-sealing closes layer, supporting layer and low-temperature heat-sealing layer are compound by high temperature hot pressing, and each interlayer of supporting layer is coextrusion under the molten condition.
Described low-temperature heat-sealing closes layer and is the modified by maleic acid anhydride graft thing of polyolefin copolymer or their any blends, or the modified by maleic acid anhydride graft of polyolefin copolymer, any composition of blend and the blend again of hydrogenated petroleum resin.
The invention has the beneficial effects as follows that a kind of applicability is provided is wider, the oriented film that low-temperature heat-sealing closes between paper that cost is lower and plastic sheeting or the plastic sheeting; This film and paper or other film compound tense, need not be coated with glue, can finish compoundly by the hot-rolling roll extrusion below 100 ℃ (low-temperature heat-sealing layer with contacted by compound object), compound tense can not produce toxic gas, has improved production efficiency and reduces production costs.
Description of drawings
Fig. 1 is the structural representation of one of them embodiment of the present invention.
Fig. 2 is the structural representation of another embodiment of the present invention.
The specific embodiment
From Fig. 1, Fig. 2 as can be seen, the oriented film that low-temperature heat-sealing closes between a kind of paper of the present invention and plastic sheeting or the plastic sheeting, comprise: supporting layer 1 and low-temperature heat-sealing close layer 2, and low-temperature heat-sealing closes layer 2 can be through the hot-rolling roll extrusion below 100 ℃ directly and paper wood, preprint paper wood, plastic sheeting, preprint plastic sheeting or self heat sealing.
Described supporting layer 1 is through elder generation's horizontal Biaxially oriented polypropylene layer in vertical back, this supporting layer 1 can be that one deck or two layers or three layers or four layers of coextrusion biaxial tension form, and can appoint one or more layers interpolation therein or not add antitack agent, antistatic additive, delustring masterbatch, titanium dioxide and calcium carbonate.
It is compoundly to form through cross directional stretch with the supporting layer behind longitudinal stretching is online that described low-temperature heat-sealing closes layer 2 again, be that low-temperature heat-sealing closes layer only through cross directional stretch, without longitudinal stretching, it can be that one deck or two layers or three layers or four layers of coextrusion form that this low-temperature heat-sealing closes layer, supporting layer and low-temperature heat-sealing layer are compound by high temperature hot pressing, and each interlayer of supporting layer is coextrusion under the molten condition.
Described low-temperature heat-sealing closes layer and is the modified by maleic acid anhydride graft thing of polyolefin copolymer or their any blends, or the modified by maleic acid anhydride graft of polyolefin copolymer, any composition of blend and the blend again of hydrogenated petroleum resin.
The manufacture method of the oriented film that low-temperature heat-sealing closes between a kind of paper and plastic sheeting or the plastic sheeting is characterized in that processing as follows:
A. prepare burden,
Main material: polypropylene: contain the 55-95% that 60%-100% accounts for the film gross weight;
Auxiliary material: 1, polyolefinic modified by maleic acid anhydride graft thing accounts for the 2-30% of film gross weight;
2, additive masterbatch accounts for the 0.5-30% of film gross weight;
Wherein antitack agent accounts for 0-2%; Antistatic additive accounts for 0-5%; The delustring masterbatch accounts for 0-20%; Titanium dioxide and calcium carbonate account for 0-20%.
B. will prepare burden adds in the corresponding extruder 180-280 ℃ and carries out fusion, plasticizing, pushes and confluxes in T type or rack type die, extrudes in 180-280 ℃ by die head;
C. the die head extrudate of supporting layer is passed through 10-60 ℃ cooling device cooling, form diaphragm;
D. diaphragm carries out preheating, longitudinal stretching and thermal finalization successively through longitudinal stretching machine, 100-170 ℃ of preheating, and the longitudinal stretching multiplying power is 2-6, and draft temperature is 60-160 ℃, and the temperature of thermal finalization is 90-170 ℃;
At this moment, at least the resin of one deck low-temperature heat-sealing layered material molten condition flows out from another die head, batchings such as polyolefinic modified by maleic acid anhydride graft thing to be added in the corresponding extruder equally and carry out fusion, plasticizing, extruding is also confluxed in T type or rack type die, in extruding, carry out the compound cross directional stretch preheating zone that enters again of hot pressing by die head with film behind the longitudinal stretching;
E. through 100-190 ℃ of preheating, the cross directional stretch multiplying power is that 6-12, draft temperature are 60-170 ℃ of cross directional stretch, and temperature range is 90-190 ℃ and carries out thermal finalization;
F. the outermost layer to the supporting layer (the not side that contacts with the low-temperature heat-sealing layer) of composite membrane behind the cross directional stretch carries out conventional corona or flame treatment;
G. rolling.
Claims (5)
1, the oriented film that low-temperature heat-sealing closes between a kind of paper and plastic sheeting or the plastic sheeting, it is characterized in that: it comprises that supporting layer and low-temperature heat-sealing close layer, and low-temperature heat-sealing closes layer for through the hot-rolling roll extrusion below 100 ℃ directly and paper wood, preprint paper wood, plastic sheeting, preprint plastic sheeting or self heat sealing.
2, the manufacture method of the oriented film that low-temperature heat-sealing closes between a kind of paper and plastic sheeting or the plastic sheeting is characterized in that processing as follows:
A. prepare burden,
Main material: polypropylene: contain the 55-95% that 60%-100% accounts for the film gross weight;
Auxiliary material: 1, polyolefinic modified by maleic acid anhydride graft thing accounts for the 2-30% of film gross weight;
2, additive masterbatch accounts for the 0.5-30% of film gross weight;
Wherein antitack agent accounts for 0-2%; Antistatic additive accounts for 0-5%; The delustring masterbatch accounts for 0-20%; Titanium dioxide and calcium carbonate account for 0-20%.
B. will prepare burden adds in the corresponding extruder 180 ℃-280 ℃ and carries out fusion, plasticizing, pushes and confluxes in T type or rack type die, extrudes in 180 ℃-280 ℃ by die head;
C. with the cooling device cooling of the die head extrudate of supporting layer, form diaphragm through 10 ℃-60 ℃;
D. diaphragm carries out preheating, longitudinal stretching and thermal finalization successively through longitudinal stretching machine, 100 ℃ of-170 ℃ of preheatings, and the longitudinal stretching multiplying power is 2-6, and draft temperature is 60 ℃-160 ℃, and the temperature of thermal finalization is 90 ℃-170 ℃;
At this moment, at least the resin of one deck low-temperature heat-sealing layered material molten condition flows out from another die head, batchings such as polyolefinic modified by maleic acid anhydride graft thing to be added in the corresponding extruder equally and carry out fusion, plasticizing, extruding is also confluxed in T type or rack type die, extrude by die head, carry out the compound cross directional stretch preheating zone that enters again of hot pressing with film behind the longitudinal stretching;
E. through 100 ℃ of-190 ℃ of preheatings, the cross directional stretch multiplying power is that 6-12, draft temperature are 60 ℃ of-170 ℃ of cross directional stretch, and temperature range is 90 ℃-190 ℃ and carries out thermal finalization;
F. the outermost layer to the supporting layer (the not side that contacts with the low-temperature heat-sealing layer) of composite membrane behind the cross directional stretch carries out conventional corona or flame treatment;
G. rolling.
3, the oriented film that low-temperature heat-sealing closes between a kind of paper according to claim 1 and plastic sheeting or the plastic sheeting, it is characterized in that supporting layer is through elder generation's horizontal Biaxially oriented polypropylene layer in vertical back, this supporting layer can be that one deck or two layers or three layers or four layers of coextrusion biaxial tension form, and can appoint one or more layers interpolation therein or not add antitack agent, antistatic additive, delustring masterbatch, titanium dioxide and calcium carbonate.
4, the oriented film that low-temperature heat-sealing closes between a kind of paper according to claim 1 and plastic sheeting or the plastic sheeting, it is characterized in that it is compoundly to form through cross directional stretch with the supporting layer behind longitudinal stretching is online that low-temperature heat-sealing closes layer again, be that low-temperature heat-sealing closes layer only through cross directional stretch, without longitudinal stretching, it can be that one deck or two layers or three layers or four layers of coextrusion form that this low-temperature heat-sealing closes layer, supporting layer and low-temperature heat-sealing layer are compound by high temperature hot pressing, and each interlayer of supporting layer is coextrusion under the molten condition.
5, the oriented film that closes according to low-temperature heat-sealing between claim 1 or 4 described a kind of paper and plastic sheeting or the plastic sheeting, it is characterized in that described low-temperature heat-sealing closes layer and is the modified by maleic acid anhydride graft thing of polyolefin copolymer or their any blends, or the modified by maleic acid anhydride graft of polyolefin copolymer, any composition of blend and the blend again of hydrogenated petroleum resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100289139A CN101298202A (en) | 2008-06-20 | 2008-06-20 | Stretching film for low temperature heat sealing between paper and plastic film or between plastic films and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100289139A CN101298202A (en) | 2008-06-20 | 2008-06-20 | Stretching film for low temperature heat sealing between paper and plastic film or between plastic films and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101298202A true CN101298202A (en) | 2008-11-05 |
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|---|---|---|---|
| CNA2008100289139A Pending CN101298202A (en) | 2008-06-20 | 2008-06-20 | Stretching film for low temperature heat sealing between paper and plastic film or between plastic films and manufacturing method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538873A (en) * | 2016-03-15 | 2016-05-04 | 安徽安恒纸塑制品有限公司 | Hot pressing technology for plastic film |
| CN105946326A (en) * | 2016-05-20 | 2016-09-21 | 合肥徽宝包装有限公司 | Hot-pressing laminating process |
| CN106003995A (en) * | 2016-05-20 | 2016-10-12 | 合肥徽宝包装有限公司 | Making process of plastic thin film |
| CN106003971A (en) * | 2016-05-20 | 2016-10-12 | 合肥徽宝包装有限公司 | Hot-pressing process of plastic thin film |
| CN106003981A (en) * | 2016-05-20 | 2016-10-12 | 合肥徽宝包装有限公司 | Plastic thin film making method |
| CN109080180A (en) * | 2018-08-03 | 2018-12-25 | 诚德科技股份有限公司 | A kind of adhesive-free combination process squeezing out composite membrane |
-
2008
- 2008-06-20 CN CNA2008100289139A patent/CN101298202A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105538873A (en) * | 2016-03-15 | 2016-05-04 | 安徽安恒纸塑制品有限公司 | Hot pressing technology for plastic film |
| CN105946326A (en) * | 2016-05-20 | 2016-09-21 | 合肥徽宝包装有限公司 | Hot-pressing laminating process |
| CN106003995A (en) * | 2016-05-20 | 2016-10-12 | 合肥徽宝包装有限公司 | Making process of plastic thin film |
| CN106003971A (en) * | 2016-05-20 | 2016-10-12 | 合肥徽宝包装有限公司 | Hot-pressing process of plastic thin film |
| CN106003981A (en) * | 2016-05-20 | 2016-10-12 | 合肥徽宝包装有限公司 | Plastic thin film making method |
| CN109080180A (en) * | 2018-08-03 | 2018-12-25 | 诚德科技股份有限公司 | A kind of adhesive-free combination process squeezing out composite membrane |
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Open date: 20081105 |