CN105415694A - Biaxially-oriented polypropylene (BOPP) synthetic packaging paper manufacturing process - Google Patents
Biaxially-oriented polypropylene (BOPP) synthetic packaging paper manufacturing process Download PDFInfo
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- CN105415694A CN105415694A CN201410484651.2A CN201410484651A CN105415694A CN 105415694 A CN105415694 A CN 105415694A CN 201410484651 A CN201410484651 A CN 201410484651A CN 105415694 A CN105415694 A CN 105415694A
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Abstract
The invention provides a biaxially-oriented polypropylene (BOPP) synthetic packaging paper manufacturing process. Raw materials for manufacturing the packaging paper include polypropylene, pore-forming agent master batch, paper forming master batch, an antistatic agent and an anti-blocking agent. The polypropylene is selected and has good characteristics of being light and resistant to dampness, oxidation, acid, alkali, pollution and the like. According to the manufacturing parameters and technical formula of the process, the abrasion resistance and tensile property of the synthetic paper are greatly improved. The internal stress of the synthetic paper is released by means of aging treatment in step (6), so that the heat stability of the synthetic paper is improved. In addition, the master batches added to a core layer of the synthetic paper can be migrated to a surface layer through the aging treatment for a certain time so as to achieve expected functions. Corona treatment is performed on the synthetic paper before a rolling-up process so that certain surface wettability tension can be obtained. By means of the BOPP synthetic packaging paper manufacturing process, the production of the synthetic paper is guided, the manufacturing process is optimized, and the product quality of the synthetic paper is stable and further improved.
Description
Technical field
The present invention relates to field of papermaking, particularly relate to a kind of BOPP synthesising packing fabrication technique made of paper.
Background technology
Synthetic paper, also known as chemical industry film paper, plastic paper, polymer paper, imitative paper film, iridescent paper etc., it is with macromolecular compound, if polyethylene, polypropylene, polystyrene, polyvinyl chloride replacement string are primary raw material, through " paper-like " process, make a kind of similar to common plant fibrous paper outward appearance and new type of paper that performance is more superior.Along with the development in epoch, the demand of countries in the world to paper constantly increases, and day by day reduce as the string such as timber of paper making raw material, from the sixties in 20th century, various countries are just devoted to trial-production and the production of synthetic paper, May nineteen sixty-eight, the resource investigation of science and technology bureau of Japanese government can draft a report, and suggestion regarding businesses utilizes petrochemical materials, synthetic resin and " develops a kind of material that can be used as the substitute of paper.Study intensively effort through some, research and develop the synthetic paper being described as " environment protecting paper ".Synthetic paper also has some shortcomings, as poor in heat-resisting property of a specified duration, deflection is lower, water imbibition, impregnability are all poor, price is high, discarded after reclaim more difficult, there is electrostatic problem, affect post-press finishing, in a word, synthetic paper had both remained the outward appearance of natural plant fibre paper, whiteness, deflection, opacity, printing and writing property, have again that polyolefin plastics film is slim and graceful, protection against the tide, antioxygen, the good characteristic such as acidproof, alkaline-resisting, anti-pollution so, excellently be greater than bad, synthetic paper has become popular high-grade printing packaging decoration new material on market, the world today.
Summary of the invention
The invention provides a kind of BOPP synthesising packing fabrication technique made of paper, for realizing object of the present invention, technical scheme of the present invention is as follows:
A kind of BOPP synthesising packing fabrication technique made of paper, its step is as follows:
(1) prepare burden: raw material and additive masterbatch are pressed certain for row Homogeneous phase mixing, send into and specify feed bin for subsequent use;
(2) extrude: the superiors are paper layer, by a single screw extrusion machine, paper masterbatch and functional master batch will be gathered in extruder leading portion mixed-hopper after uniform stirring, resin is plastified, clamp-on in the runner of the superiors of same die head, middle level is foaming layer and brightens layer, by a Series Sheet screw extruder, by isotacticity more than 94% acrylic resin, pore-foaming agent and white master material are in the mixed-hopper of extruder front end after uniform stirring, resin is plastified, clamp-on in the runner of same die head lower floor, orlop is antiblocking layers, by a single screw extrusion machine, by acrylic resin and antiblocking agent # in the mixed-hopper of extruder front end after uniform stirring, resin is plastified, clamp-on in the orlop runner of same die head,
(3) slab: utilize slab machine to carry out slab after extruding, quench temperature controls at 30-40 DEG C;
(4) longitudinal stretching: slab carries out simple tension orientation after being preheating to polyacrylic elastomeric state;
(5) cross directional stretch: carry out cross directional stretch by transverse drawing mill afterwards, after twice stretching, temperature when PP film is placed in the highest crystallization rate, under the state of tensioning, carry out the thermal finalization 3-5s second of a period of time, then chilling gets off;
(6) rolling, to cut.
Preferably, the raw material of wrapping paper comprises: polypropylene, pore-foaming agent masterbatch, paper masterbatch, antistatic additive, antiblocking agent.
Preferably, in raw material, the effective content of pore-foaming agent masterbatch, paper masterbatch, antistatic additive, antiblocking agent controls respectively at 70-75%, 95-100%, 12-15%, 5-8%.
Preferably, step (2) at the middle and upper levels THICKNESS CONTROL control to control at 5-10% in 70-80%, lower thickness at 20-15%, intima-media thickness.
Preferably, the temperature of step (4) and (5) middle longitudinal stretching is 70-80 DEG C, and cross directional stretch is 80-95 DEG C.
Preferably, step (6) will carry out the Ageing Treatment of 5-10h before cutting, and carried out sided corona treatment before bundling to synthetic paper.
Beneficial effect: the invention provides a kind of BOPP synthesising packing fabrication technique made of paper, its raw material manufacturing wrapping paper comprises: polypropylene, pore-foaming agent masterbatch, paper masterbatch, antistatic additive, antiblocking agent, material selection polypropylene, have slim and graceful, moistureproof, antioxygen, acidproof, alkaline-resisting, anti-pollution good characteristic such as grade, by this explained hereafter parameter and technical recipe, the anti-wear performance of synthetic paper and stretch-proof performance obtain and promote significantly, Ageing Treatment in step (6), the internal stress of synthetic paper is discharged, thus improve the heat endurance of synthetic paper, and the Ageing Treatment of a period of time can make the masterbatch being added on synthetic paper sandwich layer move to top layer, to realize the function of expecting, before winding process, sided corona treatment is carried out to synthetic paper, obtain certain moistened surface tension force, the BOPP synthesising packing fabrication technique made of paper that this technique provides, instruct the production of synthetic paper, and production technology is optimized, make the constant product quality of synthetic paper and further develop.
Detailed description of the invention
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, setting forth the present invention further.
embodiment 1:
A kind of BOPP synthesising packing fabrication technique made of paper, its raw material manufacturing wrapping paper comprises: polypropylene, pore-foaming agent masterbatch, paper masterbatch, antistatic additive, antiblocking agent.
Preferably, described raw material manufactures BOPP synthesising packing paper., its step is as follows:
(1) prepare burden: raw material and additive masterbatch are pressed certain for row Homogeneous phase mixing, send into and specify feed bin for subsequent use;
(2) extrude: the superiors are paper layer, by a single screw extrusion machine, paper masterbatch and functional master batch will be gathered in extruder leading portion mixed-hopper after uniform stirring, resin is plastified, clamp-on in the runner of the superiors of same die head, middle level is foaming layer and brightens layer, by a Series Sheet screw extruder, by isotacticity more than 94% acrylic resin, pore-foaming agent and white master material are in the mixed-hopper of extruder front end after uniform stirring, resin is plastified, clamp-on in the runner of same die head lower floor, orlop is antiblocking layers, by a single screw extrusion machine, by acrylic resin and antiblocking agent # in the mixed-hopper of extruder front end after uniform stirring, resin is plastified, clamp-on in the orlop runner of same die head,
(3) slab: utilize slab machine to carry out slab after extruding, quench temperature controls at 30 DEG C;
(4) longitudinal stretching: slab carries out simple tension orientation after being preheating to polyacrylic elastomeric state;
(5) cross directional stretch: carry out cross directional stretch by transverse drawing mill afterwards, after twice stretching, temperature when PP film is placed in the highest crystallization rate, under the state of tensioning, carry out the thermal finalization 3-5s second of a period of time, then chilling gets off;
(6) rolling, to cut.
Wherein, in raw material, the effective content of pore-foaming agent masterbatch, paper masterbatch, antistatic additive, antiblocking agent controls 70%, 95%, 12%, 5% respectively, step (2) at the middle and upper levels THICKNESS CONTROL 20%, intima-media thickness controls 70%, lower thickness controls 10%, the temperature of step (4) and (5) middle longitudinal stretching is 70 DEG C, cross directional stretch is 80 DEG C, step (6) will carry out the Ageing Treatment of 5h before cutting, and carried out sided corona treatment before bundling to synthetic paper.
embodiment 2:
All the other steps are identical with embodiment 1, difference is, slab machine is utilized to carry out slab after extruding in step (3), quench temperature controls at 35 DEG C, pore-foaming agent masterbatch in raw material, paper masterbatch, antistatic additive, the effective content of antiblocking agent controls respectively 72%, 98%, 13%, 7%, step (2) at the middle and upper levels THICKNESS CONTROL 15%, intima-media thickness controls 750%, lower thickness controls 10%, the temperature of step (4) and (5) middle longitudinal stretching is 75 DEG C, cross directional stretch is 90 DEG C, step (6) will carry out the Ageing Treatment of 7h before cutting, before bundling, sided corona treatment is carried out to synthetic paper.
embodiment 3:
All the other steps are identical with embodiment 1, difference is, slab machine is utilized to carry out slab after extruding in step (3), quench temperature controls at 40 DEG C, pore-foaming agent masterbatch in raw material, paper masterbatch, antistatic additive, the effective content of antiblocking agent controls respectively 75%, 100%, 15%, 8%, step (2) at the middle and upper levels THICKNESS CONTROL 15%, intima-media thickness controls 80%, lower thickness controls 5%, the temperature of step (4) and (5) middle longitudinal stretching is 80 DEG C, cross directional stretch is 95 DEG C, step (6) will carry out the Ageing Treatment of 10h before cutting, before bundling, sided corona treatment is carried out to synthetic paper.
Known by above-mentioned 3 instance datas contrast, when embodiment 2 parameter, the smoothness of paper is best, folding strength and tensile strength high, be now more conducive to the production of BOPP synthesising packing paper.
The invention provides a kind of BOPP synthesising packing fabrication technique made of paper, its raw material manufacturing wrapping paper comprises: polypropylene, pore-foaming agent masterbatch, paper masterbatch, antistatic additive, antiblocking agent, material selection polypropylene, have slim and graceful, moistureproof, antioxygen, acidproof, alkaline-resisting, anti-pollution good characteristic such as grade, by this explained hereafter parameter and technical recipe, the anti-wear performance of synthetic paper and stretch-proof performance obtain and promote significantly, Ageing Treatment in step (6), the internal stress of synthetic paper is discharged, thus improve the heat endurance of synthetic paper, and the Ageing Treatment of a period of time can make the masterbatch being added on synthetic paper sandwich layer move to top layer, to realize the function of expecting, before winding process, sided corona treatment is carried out to synthetic paper, obtain certain moistened surface tension force, the BOPP synthesising packing fabrication technique made of paper that this technique provides, instruct the production of synthetic paper, and production technology is optimized, make the constant product quality of synthetic paper and further develop.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (6)
1. a BOPP synthesising packing fabrication technique made of paper, is characterized in that, its step is as follows:
(1) prepare burden: raw material and additive masterbatch are pressed certain for row Homogeneous phase mixing, send into and specify feed bin for subsequent use;
(2) extrude: the superiors are paper layer, by a single screw extrusion machine, paper masterbatch and functional master batch will be gathered in extruder leading portion mixed-hopper after uniform stirring, resin is plastified, clamp-on in the runner of the superiors of same die head, middle level is foaming layer and brightens layer, by a Series Sheet screw extruder, by isotacticity more than 94% acrylic resin, pore-foaming agent and white master material are in the mixed-hopper of extruder front end after uniform stirring, resin is plastified, clamp-on in the runner of same die head lower floor, orlop is antiblocking layers, by a single screw extrusion machine, by acrylic resin and antiblocking agent # in the mixed-hopper of extruder front end after uniform stirring, resin is plastified, clamp-on in the orlop runner of same die head,
(3) slab: utilize slab machine to carry out slab after extruding, quench temperature controls at 30-40 DEG C;
(4) longitudinal stretching: slab carries out simple tension orientation after being preheating to polyacrylic elastomeric state;
(5) cross directional stretch: carry out cross directional stretch by transverse drawing mill afterwards, after twice stretching, temperature when PP film is placed in the highest crystallization rate, under the state of tensioning, carry out the thermal finalization 3-5s second of a period of time, then chilling gets off;
(6) rolling, to cut.
2. a kind of BOPP synthesising packing according to claim 1 fabrication technique made of paper, is characterized in that, described in step (1), raw material comprises: polypropylene, pore-foaming agent masterbatch, paper masterbatch, antistatic additive, antiblocking agent.
3. a kind of BOPP synthesising packing according to claim 2 fabrication technique made of paper, is characterized in that, in raw material, the effective content of pore-foaming agent masterbatch, paper masterbatch, antistatic additive, antiblocking agent controls respectively at 70-75%, 95-100%, 12-15%, 5-8%.
4. a kind of BOPP synthesising packing according to claim 2 fabrication technique made of paper, is characterized in that, step (2) at the middle and upper levels THICKNESS CONTROL controls to control at 5-10% in 70-80%, lower thickness at 20-15%, intima-media thickness.
5. a kind of BOPP synthesising packing according to claim 2 fabrication technique made of paper, is characterized in that, the temperature of step (4) and (5) middle longitudinal stretching is 70-80 DEG C, and cross directional stretch is 80-95 DEG C.
6. a kind of BOPP synthesising packing according to claim 2 fabrication technique made of paper, is characterized in that, step (6) will carry out the Ageing Treatment of 5-10h before cutting, and carries out sided corona treatment before bundling to synthetic paper.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100041A (en) * | 2017-07-06 | 2017-08-29 | 上海海冰新材料科技有限公司 | A kind of composite paper new material and preparation method thereof |
| CN107100042A (en) * | 2017-07-06 | 2017-08-29 | 上海海冰新材料科技有限公司 | A kind of collateral fiber composite paper new material |
| CN113580708A (en) * | 2021-08-06 | 2021-11-02 | 绍兴宏远新材料有限公司 | Environment-friendly long-acting high-wetting-tension shallow screen printing BOPP film |
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| CN101722700A (en) * | 2009-11-16 | 2010-06-09 | 上海紫东化工材料有限公司 | Low-haze multi-layer co-extrusion two-way stretching polyamide film and preparation method |
| CN102079155A (en) * | 2010-08-26 | 2011-06-01 | 湛江包装材料企业有限公司 | BOPP thin film of hard-box cigarette package special for super-high speed cigarette packer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107100041A (en) * | 2017-07-06 | 2017-08-29 | 上海海冰新材料科技有限公司 | A kind of composite paper new material and preparation method thereof |
| CN107100042A (en) * | 2017-07-06 | 2017-08-29 | 上海海冰新材料科技有限公司 | A kind of collateral fiber composite paper new material |
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| CN113580708A (en) * | 2021-08-06 | 2021-11-02 | 绍兴宏远新材料有限公司 | Environment-friendly long-acting high-wetting-tension shallow screen printing BOPP film |
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Application publication date: 20160323 |