CN105315555A - High-transmittance antistatic BOPP thin film and production process thereof - Google Patents
High-transmittance antistatic BOPP thin film and production process thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/20—Carboxylic acid amides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
- C08K5/526—Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
Abstract
The invention discloses a high-transmittance antistatic BOPP thin film which is prepared from the following raw materials in percentage by weight: 97.3-98.1% of polypropylene master batch, 1.0-1.2% of conductive antistatic agent master batch, 0.4-1.0% of a slipping agent, 0.2-1.2% a dispersing agent and 0.3-1.0% of an antioxygen. A production process for preparing the BOPP thin film comprises the following steps: (1) raw material and additive mixing, (2) extrusion plasticization, (3) sheet casting, (4) longitudinal stretching, (5) transversal stretching, (6) traction trimming, (7) rolling, (8) slitting, and (9) finished product packaging. Good dispersivity and conductivity of the conductive antistatic agent master batch in the BOPP thin film are utilized, the antistatic effect of the thin film is improved, relatively high light transmittance performance of the thin film is ensured, and the physical and chemical properties are effectively controlled; besides, the multi-layer co-extrusion technology and the adjusting production process are utilized, a special thin film structure is formed, the surface property of the thin film is optimized, and meanwhile effective control of the thin film stretching, shaping and postprocessing of the thin film is realized, so as to obtain the BOPP thin film appropriate in crystallinity and ideal in crystal structure.
Description
Technical field
The present invention relates to BOPP thin film technique field, be specifically related to a kind of high saturating antistatic BOPP film and production technique thereof.
Background technology
BOPP film is a kind of very important flexible packing material, and BOPP film is colourless, odorless, tasteless, nontoxic, and has high tensile strength, shock strength, rigidity, obdurability and the good transparency.But BOPP film in process of production, there is more serious electrostatic phenomenon, not only affect the production rate of film product, and affect many physical and chemical performances of film, the existence of such as electrostatic has certain repulsive interaction to the transparency promoting film, therefore, the technician of our company is by trying to explore the production technique that it realizes best antistatic effect.
Summary of the invention
The object of the invention is to: for the above-mentioned technical problem existed in prior art, a kind of high permeability energy improving film is provided, and there is the BOPP film that physical strength is large, good stability of the dimension, printing performance are good, transparency is high.
The present invention is achieved by the following technical solutions:
A kind of high saturating antistatic BOPP film, is made up of the raw material of following masses percentage ratio: polypropylene masterbatch 97.3-98.1%, conductive base static inhibitor masterbatch 1.0-1.2%, slipping agent 0.4-1.0%, dispersion agent 0.2-1.2%, oxidation inhibitor 0.3-1.0%.
As preferably, described polypropylene masterbatch is the polypropylene dedicated masterbatch of BOPP film.
As preferably, described slipping agent main component is erucicamide, fatty acid amide and amine hydroxybenzene.
As preferably, described dispersion agent is polyethylene wax or ethylene bis stearamide.
As preferably, described oxidation inhibitor is the mixed thing of antioxidant 1010 and irgasfos 168, the two mass ratio 1:2.
The production technique of a kind of high antistatic BOPP film as above, comprises the steps:
(1) raw material mixes with additive: respectively raw material is added blending bunker by proportioning, by the mixing that stirs, Weighing laggard enter main extruder and subsidiary extruder;
(2) extrusion plasticizing: the heating zone of main extruder and auxiliary forcing machine is all heated to 240 DEG C, make raw materials melt, in melting process, raw material plastifies under the effect of twin screw extruder, mixing, and utilize vacuum pump evacuation to discharge the moisture in raw material, air by two venting ports of the 3rd and slender acanthopanax hot-zone; The melt of raw material after melting enters fine filter by coarse filter, volume pump, then enters die head by three-layer co-extruded feed block;
(3) slab: it is that three laminar flows go out that melt is uniformly distributed in die head, wherein, the melt of auxiliary forcing machine is the compound of slipping agent, dispersion agent, oxidation inhibitor, conductive base static inhibitor masterbatch, polypropylene masterbatch, and the melt of main extruder is polypropylene masterbatch, and die head temperature is 245 DEG C; With cold water cooling in slab roller, surface temperature control is at 20 DEG C, and the melt of outflow is solidified into sheet at slab roller surface quick refrigeration;
(4) longitudinal stretching: before entering longitudinal stretching machine, sheet is first through one group of preheat roll heating, temperature setting is increased to 130 DEG C gradually from 100 DEG C, then carry out being drawn into film three times on longitudinal stretching machine, draft temperature is 115 DEG C, film through longitudinal stretching carries out ratio to heat setting type on one group of setting roll surface, and setting roll temperature is 136 DEG C;
(5) cross directional stretch: film enters transverse stretching machine after longitudinal stretching, on film both sides, transverse stretching machine ingress by the clamping of chain folder, chain folder draws film to run forward, blower fan is by having the airduct of even pore from heating film blowing hot-air up and down simultaneously, temperature setting brings up to 160 DEG C gradually from 95 DEG C, then cross directional stretch district is entered, broaden gradually at drawing zone chain folder width, film is made to carry out cross directional stretch, draft temperature controls at 155 DEG C, film after stretching carries out horizontal heat setting type through sizing section, is then cooled by cooling section;
(6) deburring is drawn: the film of horizontal pull-out mouth enters Traction Station, edge rest and reorganization device in Traction Station is rested and reorganized to being clamped unstretched film edge by chain by edge-trimming cutter, the width range of edge trimming is 120 ~ 150mm, trimming material is sent to trimming beating crusher by aspiration channel and is ground into fragment, film fragments is directly sent to the Preblend system PBS of main extruder through pipeline, film through deburring carries out corona treatment by corona treatment plant, then draws to winder;
(7) rolling: by winder by film take-up;
(8) cut: film, from unwinding rack traction to cutter, ensures the tension force of film and flattens in process, in the specification that cutting roller place film slitting becomes to need, rolling station is distributed in cutting roller both sides, interval rolling on the station of both sides;
(9) finished product packing: by the finished product packing of rolling, weigh after warehouse-in.
As preferably, described Traction Station is provided with thickness tester.
As preferably, described winder is double revolution winder.
As preferably, in order to make melt be close to slab roller surface well in described step (3), on slab roller, configuring a set of air sword blower fan patch system, by uniform high pressure draft, melt being attached on slab roller tightly.
As preferably, described double revolution winder is furnished with automatic change of lap and diced system.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, the present invention's good dispersiveness of utilizing conductive base static inhibitor masterbatch to have in BOPP film and conductivity, improve the antistatic effect of film, guarantee film obtain high light permeability can while, effectively control film physical and chemical performance.
2, the present invention utilizes multi-layer co-extruded technology, makes it to form special membrane structure, thus optimizes the surface property of film.
3, the present invention has carried out effective adjustment to technique, realizes effective control of film stretching, sizing and aftertreatment, thus obtains degree of crystallinity and be suitable for the BOPP film desirable with crystalline structure.
Embodiment
All features disclosed in this specification sheets, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this specification sheets (comprising any accessory claim, summary), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
Embodiment 1
A kind of high saturating antistatic BOPP film, is made up of the raw material of following masses percentage ratio: polypropylene masterbatch 98.0%, conductive base static inhibitor masterbatch 1.0%, slipping agent 0.4%, dispersion agent 0.2%, oxidation inhibitor 0.4.
Wherein, described polypropylene masterbatch is the polypropylene dedicated masterbatch of BOPP film, described slipping agent main component is erucicamide, fatty acid amide and amine hydroxybenzene, described dispersion agent is polyethylene wax or ethylene bis stearamide, described oxidation inhibitor is the mixed thing of antioxidant 1010 and irgasfos 168, the two mass ratio 1:2.
Embodiment 2
A kind of high saturating antistatic BOPP film, is made up of the raw material of following masses percentage ratio: polypropylene masterbatch 98.1%, conductive base static inhibitor masterbatch 1.0%, slipping agent 0.4%, dispersion agent 0.2%, oxidation inhibitor 0.3%.
Wherein, described polypropylene masterbatch is the polypropylene dedicated masterbatch of BOPP film, described slipping agent main component is erucicamide, fatty acid amide and amine hydroxybenzene, described dispersion agent is polyethylene wax or ethylene bis stearamide, described oxidation inhibitor is the mixed thing of antioxidant 1010 and irgasfos 168, the two mass ratio 1:2.
Embodiment 3
A kind of high saturating antistatic BOPP film, is made up of the raw material of following masses percentage ratio: polypropylene masterbatch 97.3%, conductive base static inhibitor masterbatch 1.0%, slipping agent 0.7%, dispersion agent 0.5%, oxidation inhibitor 0.5%.
Wherein, described polypropylene masterbatch is the polypropylene dedicated masterbatch of BOPP film, described slipping agent main component is erucicamide, fatty acid amide and amine hydroxybenzene, described dispersion agent is polyethylene wax or ethylene bis stearamide, described oxidation inhibitor is the mixed thing of antioxidant 1010 and irgasfos 168, the two mass ratio 1:2.
The production technique of a kind of high antistatic BOPP film as described in embodiment 1,2,3, comprises the steps:
(1) raw material mixes with additive: respectively raw material is added blending bunker by proportioning, by the mixing that stirs, Weighing laggard enter main extruder and subsidiary extruder;
(2) extrusion plasticizing: the heating zone of main extruder and auxiliary forcing machine is all heated to 240 DEG C, make raw materials melt, in melting process, raw material plastifies under the effect of twin screw extruder, mixing, and utilize vacuum pump evacuation to discharge the moisture in raw material, air by two venting ports of the 3rd and slender acanthopanax hot-zone; The melt of raw material after melting enters fine filter by coarse filter, volume pump, then enters die head by three-layer co-extruded feed block;
(3) slab: it is that three laminar flows go out that melt is uniformly distributed in die head, wherein, the melt of auxiliary forcing machine is the compound of slipping agent, dispersion agent, oxidation inhibitor, conductive base static inhibitor masterbatch, polypropylene masterbatch, and the melt of main extruder is polypropylene masterbatch, and die head temperature is 245 DEG C; With cold water cooling in slab roller, surface temperature control is at 20 DEG C, and the melt of outflow is solidified into sheet at slab roller surface quick refrigeration; In order to make melt be close to slab roller surface well, on slab roller, configuring a set of air sword blower fan patch system, by uniform high pressure draft, melt being attached on slab roller tightly;
(4) longitudinal stretching: before entering longitudinal stretching machine, sheet is first through one group of preheat roll heating, temperature setting is increased to 130 DEG C gradually from 100 DEG C, then carry out being drawn into film three times on longitudinal stretching machine, draft temperature is 115 DEG C, film through longitudinal stretching carries out ratio to heat setting type on one group of setting roll surface, and setting roll temperature is 136 DEG C;
(5) cross directional stretch: film enters transverse stretching machine after longitudinal stretching, on film both sides, transverse stretching machine ingress by the clamping of chain folder, chain folder draws film to run forward, blower fan is by having the airduct of even pore from heating film blowing hot-air up and down simultaneously, temperature setting brings up to 160 DEG C gradually from 95 DEG C, then cross directional stretch district is entered, broaden gradually at drawing zone chain folder width, film is made to carry out cross directional stretch, draft temperature controls at 155 DEG C, film after stretching carries out horizontal heat setting type through sizing section, is then cooled by cooling section;
(6) deburring is drawn: the film of horizontal pull-out mouth enters Traction Station, Traction Station is provided with thickness tester, edge rest and reorganization device in Traction Station is rested and reorganized to being clamped unstretched film edge by chain by edge-trimming cutter, the width range of edge trimming is 120 ~ 150mm, trimming material is sent to trimming beating crusher by aspiration channel and is ground into fragment, film fragments is directly sent to the Preblend system PBS of main extruder through pipeline, film through deburring carries out corona treatment by corona treatment plant, then draw to winder, winder is double revolution winder, double revolution winder is furnished with automatic change of lap and diced system,
(7) rolling: by winder by film take-up;
(8) cut: film, from unwinding rack traction to cutter, ensures the tension force of film and flattens in process, in the specification that cutting roller place film slitting becomes to need, rolling station is distributed in cutting roller both sides, interval rolling on the station of both sides;
(9) finished product packing: by the finished product packing of rolling, weigh after warehouse-in.
The technical indicator of the film that the present invention makes is:
(1) mist degree: < 9.8%(technical requirements), 0.4(our company Product checking result);
(2) glossiness: > 85%(technical requirements), 94;
(3) transmittance: > 90%(technical requirements);
(4) tensile strength: longitudinally: >=120MPA(technical requirements), laterally: >=210MPA(technical requirements);
(5) elongation at break: longitudinally :≤180%(technical requirements), laterally :≤80%(technical requirements);
(6) percent thermal shrinkage (120 DEG C/2 minutes): longitudinally :≤5%(technical requirements), laterally: 3%(technical requirements);
(7) surface electrostatic transformation period test :≤10 seconds (technical requirements).
Above-described specific embodiment, further describes object of the present invention, technical scheme and beneficial effect, and institute it should be understood that and the foregoing is only specific embodiments of the invention, is not limited to the present invention.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (10)
1. one kind high antistatic BOPP film, it is characterized in that, be made up of the raw material of following masses percentage ratio: polypropylene masterbatch 97.3-98.1%, conductive base static inhibitor masterbatch 1.0-1.2%, slipping agent 0.4-1.0%, dispersion agent 0.2-1.2%, oxidation inhibitor 0.3-1.0%.
2. a kind of high saturating antistatic BOPP film according to claim 1, it is characterized in that, described polypropylene masterbatch is the polypropylene dedicated masterbatch of BOPP film.
3. a kind of high saturating antistatic BOPP film according to claim 1, it is characterized in that, described slipping agent main component is erucicamide, fatty acid amide and amine hydroxybenzene.
4. a kind of high saturating antistatic BOPP film according to claim 1, it is characterized in that, described dispersion agent is polyethylene wax or ethylene bis stearamide.
5. a kind of high saturating antistatic BOPP film according to claim 1, it is characterized in that, described oxidation inhibitor is the mixed thing of antioxidant 1010 and irgasfos 168, the two mass ratio 1:2.
6. a production technique for high antistatic BOPP film, is characterized in that, comprise the steps:
(1) raw material mixes with additive: respectively raw material is added blending bunker by proportioning, by the mixing that stirs, Weighing laggard enter main extruder and subsidiary extruder;
Polypropylene masterbatch 97.3-98.1%, conductive base static inhibitor masterbatch 1.0-1.2%, slipping agent 0.4-1.0%, dispersion agent 0.2-1.2%, oxidation inhibitor 0.3-1.0%;
(2) extrusion plasticizing: the heating zone of main extruder and auxiliary forcing machine is all heated to 240 DEG C, make raw materials melt, in melting process, raw material plastifies under the effect of twin screw extruder, mixing, and utilize vacuum pump evacuation to discharge the moisture in raw material, air by two venting ports of the 3rd and slender acanthopanax hot-zone; The melt of raw material after melting enters fine filter by coarse filter, volume pump, then enters die head by three-layer co-extruded feed block;
(3) slab: it is that three laminar flows go out that melt is uniformly distributed in die head, wherein, the melt of auxiliary forcing machine is the compound of slipping agent, dispersion agent, oxidation inhibitor, conductive base static inhibitor masterbatch, polypropylene masterbatch, and the melt of main extruder is polypropylene masterbatch, and die head temperature is 245 DEG C; With cold water cooling in slab roller, surface temperature control is at 20 DEG C, and the melt of outflow is solidified into sheet at slab roller surface quick refrigeration;
(4) longitudinal stretching: before entering longitudinal stretching machine, sheet is first through one group of preheat roll heating, temperature setting is increased to 130 DEG C gradually from 100 DEG C, then carry out being drawn into film three times on longitudinal stretching machine, draft temperature is 115 DEG C, film through longitudinal stretching carries out ratio to heat setting type on one group of setting roll surface, and setting roll temperature is 136 DEG C;
(5) cross directional stretch: film enters transverse stretching machine after longitudinal stretching, on film both sides, transverse stretching machine ingress by the clamping of chain folder, chain folder draws film to run forward, blower fan is by having the airduct of even pore from heating film blowing hot-air up and down simultaneously, temperature setting brings up to 160 DEG C gradually from 95 DEG C, then cross directional stretch district is entered, broaden gradually at drawing zone chain folder width, film is made to carry out cross directional stretch, draft temperature controls at 155 DEG C, film after stretching carries out horizontal heat setting type through sizing section, is then cooled by cooling section;
(6) deburring is drawn: the film of horizontal pull-out mouth enters Traction Station, edge rest and reorganization device in Traction Station is rested and reorganized to being clamped unstretched film edge by chain by edge-trimming cutter, the width range of edge trimming is 120 ~ 150mm, trimming material is sent to trimming beating crusher by aspiration channel and is ground into fragment, film fragments is directly sent to the Preblend system PBS of main extruder through pipeline, film through deburring carries out corona treatment by corona treatment plant, then draws to winder;
(7) rolling: by winder by film take-up;
(8) cut: film, from unwinding rack traction to cutter, ensures the tension force of film and flattens in process, in the specification that cutting roller place film slitting becomes to need, rolling station is distributed in cutting roller both sides, interval rolling on the station of both sides;
(9) finished product packing: by the finished product packing of rolling, weigh after warehouse-in.
7. the production technique of a kind of high antistatic BOPP film according to claim 6, it is characterized in that, described Traction Station is provided with thickness tester.
8. the production technique of a kind of high antistatic BOPP film according to claim 6, is characterized in that, described winder is double revolution winder.
9. the production technique of a kind of high antistatic BOPP film according to claim 6, it is characterized in that, in order to make melt be close to slab roller surface well in described step (3), on slab roller, configure a set of air sword blower fan patch system, by uniform high pressure draft, melt is attached on slab roller tightly.
10. the production technique of a kind of high antistatic BOPP film according to claim 8, is characterized in that, described double revolution winder is furnished with automatic change of lap and diced system.
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| CN106279988A (en) * | 2016-08-16 | 2017-01-04 | 金田集团（桐城）塑业有限公司 | A kind of corrosion-resistant BOPP thin film |
| CN106336574A (en) * | 2016-08-31 | 2017-01-18 | 金田集团（桐城）塑业有限公司 | BOPP film |
| CN106380683A (en) * | 2016-08-31 | 2017-02-08 | 金田集团（桐城）塑业有限公司 | Slip polypropylene film |
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| CN111890655A (en) * | 2020-07-22 | 2020-11-06 | 宿迁市金田塑业有限公司 | Multi-layer co-extrusion production process of biaxially oriented polyethylene antibacterial antifogging film |
| CN112223797A (en) * | 2020-09-21 | 2021-01-15 | 瑞安市东威塑胶有限公司 | Production process of BOPP film |
| CN113248830A (en) * | 2021-05-26 | 2021-08-13 | 倪显成 | BOPP film and production process thereof |
| WO2021190101A1 (en) * | 2020-03-27 | 2021-09-30 | 深圳市海瀚新能源技术有限公司 | Conductive film, preparation process therefor, electrode plate and battery |
| CN114905820A (en) * | 2022-05-09 | 2022-08-16 | 云阳金田塑业有限公司 | Non-glue film main body material and preparation method thereof |
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| CN110845796A (en) * | 2019-12-03 | 2020-02-28 | 福建鑫邦新材料科技有限公司 | Polypropylene antistatic soft master batch and preparation method thereof |
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| WO2021190101A1 (en) * | 2020-03-27 | 2021-09-30 | 深圳市海瀚新能源技术有限公司 | Conductive film, preparation process therefor, electrode plate and battery |
| CN111890655A (en) * | 2020-07-22 | 2020-11-06 | 宿迁市金田塑业有限公司 | Multi-layer co-extrusion production process of biaxially oriented polyethylene antibacterial antifogging film |
| CN112223797A (en) * | 2020-09-21 | 2021-01-15 | 瑞安市东威塑胶有限公司 | Production process of BOPP film |
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