CN109370087A - A kind of super thick PVC roll material production method - Google Patents

A kind of super thick PVC roll material production method Download PDF

Info

Publication number
CN109370087A
CN109370087A CN201811018658.XA CN201811018658A CN109370087A CN 109370087 A CN109370087 A CN 109370087A CN 201811018658 A CN201811018658 A CN 201811018658A CN 109370087 A CN109370087 A CN 109370087A
Authority
CN
China
Prior art keywords
parts
production method
roll material
material production
film
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201811018658.XA
Other languages
Chinese (zh)
Inventor
李永平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201811018658.XA priority Critical patent/CN109370087A/en
Publication of CN109370087A publication Critical patent/CN109370087A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • 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
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2327/06—Homopolymers or copolymers of vinyl chloride
    • 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
    • C08J2427/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2427/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2427/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08J2427/06—Homopolymers or copolymers of vinyl chloride
    • 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
    • C08J2491/00—Characterised by the use of oils, fats or waxes; Derivatives thereof
    • 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
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/02—Organic and inorganic ingredients
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2217—Oxides; Hydroxides of metals of magnesium
    • C08K2003/2224—Magnesium hydroxide
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • C08K2003/321—Phosphates
    • C08K2003/327—Aluminium phosphate
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/38—Boron-containing compounds
    • C08K2003/387—Borates
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • 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
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/092—Polycarboxylic acids
    • 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
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098—Metal salts of carboxylic acids
    • 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
    • C08K5/10—Esters; Ether-esters

Abstract

A kind of super thick PVC roll material production method of the present invention, the following steps are included: 1) according to weight ratio, by 100 parts of PVC sizing material, 4-6 parts of epoxidized soybean oil, 15-30 parts of plasticizer, 8~15 parts of stabilizer and 15-25 parts of processing aid, processing aid includes 3-6 parts of aluminium triphosphate, 2-6 parts of sorbic acid, 2-4 parts of calcium stearate and 1-3 parts of sodium metasilicate, obtains calendered film through metering device, high-speed stirring apparatus, cooling and stirring device, mixer, calendering device；2) film is by preheating；3) baker anneals to film；4) supercooled water；5) roars of laughter are carried out to film to do；6) room temperature is air-cooled；7) it is cooled down by chill roll, cooling water is passed through in roller；8) it winds, is unlikely to deform and aging, stability is good, effectively extends the service life of PVC roll material.

Description

A kind of super thick PVC roll material production method
Technical field
The invention belongs to PVC technical fields, specifically, being related to a kind of super thick PVC roll material production method.
Background technique
Plastics (English name: Plastic) refer to that using the synthetic resin of high molecular weight as main component, addition suitably adds Add agent, such as plasticizer, stabilizer, fire retardant, lubricant, colorant, processed molding plasticity (flexibility) material, or consolidates Change the rigid material being cross-linked to form.Plastics are the products in 20th century, and since it is by since developing, the purposes of various aspects is increasingly wide It is general.
Polyvinyl chloride English abbreviation PVC, with less toxic, fire-retardant, cold-resistant, the environmentally friendly excellent performance of PVC film, increasingly To vast purposes, it is widely used in the fields such as certificate, Bao Ce, packaging, luggage, clothes, footwear, automobile decoration, develops to Visible PVC product everywhere in daily life field.By a little as it can be seen that the demand of PVC film is increasing.
But be easily deformed after existing PVC roll material long-time use and aging, beauty is influenced, or even cannot use, contracted The short service life of PVC roll material.
Summary of the invention
The present invention overcomes the disadvantages of the prior art, provides a kind of super thick PVC roll material production method, passes through the party Method, is unlikely to deform and aging, and stability is good, effectively extends the service life of PVC roll material.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions:
A kind of super thick PVC roll material production method, comprising the following steps:
1) according to weight ratio, by 100 parts of PVC sizing material, 4-6 parts of epoxidized soybean oil, 15-30 parts of plasticizer, stabilizer 8~15 Part and processing aid 15-25 part, processing aid includes 3-6 parts of aluminium triphosphate, 2-6 parts of sorbic acid, 2-4 parts of calcium stearate and inclined 1-3 parts of sodium metasilicate, calendered film is obtained through metering device, high-speed stirring apparatus, cooling and stirring device, mixer, calendering device；
2) film is by preheating；
3) baker anneals to film；
4) supercooled water；
5) roars of laughter are carried out to film to do；
6) room temperature is air-cooled；
7) it is cooled down by chill roll, cooling water is passed through in roller；
8) it winds.
Further, the step 2), preheating temperature are 120 DEG C.
Further, the step 3), annealing temperature are 140-150 DEG C.
Further, the step 3), annealing temperature include three sections, respectively 140 DEG C, 145 DEG C and 150 DEG C.
Further, the step 4), cooling water temperature are 5-7 DEG C.
Further, the step 7), roll surface temperature are 15 DEG C.
Further, the step 8) carries out shaping before winding, it is described be fixed to film successively pass through 5 DEG C roller and 40 DEG C Heating.
Further, the step 8) includes taste removal process before the sizing.
Further, according to weight ratio, the plasticizer is zinc borate 5-10 part, 3-5 parts of titanate esters, 4-7 parts of jet and is gathered 3-6 parts of vinyl chloride wax, the stabilizer is calcium stearate 3-6 parts, 2-6 parts of organotin, 1-3 parts of zeolite and 1-2 parts of gadolinium hydroxide, The processing aid further includes 0.1-0.2 parts of nanometer volcanic mud, 2-4 parts of magnesium hydroxide, 0.5-1 parts of Cab-O-sil, nanometer titanium dioxide 1-2 parts of antimony, 1-2 parts of sodium fluoride and suitable 0.1-0.3 parts of Ding Xier acid anhydrides.
Compared with prior art, the beneficial effects of the present invention are:
A kind of super thick PVC roll material production method of the present invention, comprising the following steps: 1) according to weight ratio, by PVC sizing material 100 parts, 4-6 parts of epoxidized soybean oil, 15-30 parts of plasticizer, 8~15 parts of stabilizer and 15-25 parts of processing aid, processing aid packet 3-6 parts of aluminium triphosphate, 2-6 parts of sorbic acid, 2-4 parts of calcium stearate and 1-3 parts of sodium metasilicate are included, through metering device, high-speed stirring It mixes device, cooling and stirring device, mixer, calendering device and obtains calendered film；2) film is by preheating；3) baker to film into Row annealing；4) supercooled water；5) roars of laughter are carried out to film to do；6) room temperature is air-cooled；7) it is cooled down, is passed through in roller cold by chill roll But water；8) it winds, it is unlikely to deform and aging, stability is good, effectively extends the service life of PVC roll material.
Specific embodiment
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used In the description and interpretation present invention, it is not intended to limit the present invention.
A kind of super thick PVC roll material production method, comprising the following steps:
1) according to weight ratio, 100 parts of PVC sizing material 5 parts of epoxidized soybean oil, 20 parts of plasticizer, 12.5 parts of stabilizer and add It 20.95 parts of work auxiliary agent, obtains rolling through metering device, high-speed stirring apparatus, cooling and stirring device, mixer, calendering device thin Film；
Wherein, plasticizer is 6 parts of zinc borate, 4 parts of titanate esters, 5 parts of jet and 5 parts of polyvinyl chloride wax, jet and polychlorostyrene second Alkene wax effectively increases the temperature flowing of PVC roll material, keeps its plasticity more preferable, realizes the characteristic of its super thick.
Stabilizer is 5 parts of calcium stearate, 4 parts of organotin, 2 parts of zeolite and 1.5 parts of gadolinium hydroxide, the stabilizer Reinforced PVC The inertia of coiled material keeps its non-aging and deforms.
Processing aid is 4 parts of aluminium triphosphate, 5 parts of sorbic acid, 3 parts of calcium stearate, 2 part, nanometer volcanic mud of sodium metasilicate 0.15 part, 3 parts of magnesium hydroxide, 0.6 part of Cab-O-sil, 1.5 parts of nanometer titanium dioxide antimony, 1.5 parts of sodium fluoride and suitable Ding Xier acid anhydrides 0.2 Part, nanometer titanium dioxide antimony improves the ageing-resistant performance of final PVC roll material product, along the addition of Ding Xier acid anhydrides, makes crystal slab more It is compact, it is unlikely to deform, along with the addition of nanometer volcanic mud and Cab-O-sil, nanometer titanium dioxide antimony, keeps its elasticity smaller, be less susceptible to Deformation.
2) for film by preheating, preheating temperature is 120 DEG C；
3) baker anneals to film, and annealing temperature is 140-150 DEG C, and annealing temperature is including three sections, respectively 140 DEG C, 145 DEG C and 150 DEG C；
4) supercooled water, cooling water temperature are 5-7 DEG C；
5) roars of laughter are carried out to film to do；
6) room temperature is air-cooled；
7) it being cooled down by chill roll, cooling water is passed through in roller, roll surface temperature is 15 DEG C,；
8) taste removal and sizing, are carried out before winding, film is fixed to and successively passes through 5 DEG C of roller and 40 DEG C of heating, are wound.
Indices are as follows:
Finally, it should be noted that these are only the preferred embodiment of the present invention, it is not intended to restrict the invention, although Referring to embodiment, invention is explained in detail, for those skilled in the art, still can be to aforementioned Technical solution documented by each embodiment is modified or equivalent replacement of some of the technical features, but it is all Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention Within the scope of.

Claims (9)

1. a kind of super thick PVC roll material production method, which comprises the following steps:
1) according to weight ratio, by 100 parts of PVC sizing material, 4-6 parts of epoxidized soybean oil, 15-30 parts of plasticizer, 8~15 parts of stabilizer and 15-25 parts of processing aid, processing aid includes 3-6 parts of aluminium triphosphate, 2-6 parts of sorbic acid, 2-4 parts of calcium stearate and metasilicic acid 1-3 parts of sodium, calendered film is obtained through metering device, high-speed stirring apparatus, cooling and stirring device, mixer, calendering device；
2) film is by preheating；
3) baker anneals to film；
4) supercooled water；
5) roars of laughter are carried out to film to do；
6) room temperature is air-cooled；
7) it is cooled down by chill roll, cooling water is passed through in roller；
8) it winds.
2. a kind of super thick PVC roll material production method according to claim 1, which is characterized in that the step 2), preheating temperature It is 120 DEG C.
3. a kind of super thick PVC roll material production method according to claim 1, which is characterized in that the step 3), annealing temperature It is 140-150 DEG C.
4. a kind of super thick PVC roll material production method according to claim 3, which is characterized in that the step 3), annealing temperature Including three sections, respectively 140 DEG C, 145 DEG C and 150 DEG C.
5. a kind of super thick PVC roll material production method according to claim 1, which is characterized in that the step 4), coolant water temperature Degree is 5-7 DEG C.
6. a kind of super thick PVC roll material production method according to claim 1, which is characterized in that the step 7), roller surface temperature Degree is 15 DEG C.
7. a kind of super thick PVC roll material production method according to claim 1, which is characterized in that the step 8), winding are advanced Row sizing, the film that is fixed to successively pass through 5 DEG C of roller and 40 DEG C of heating.
8. a kind of super thick PVC roll material production method according to claim 7, which is characterized in that the step 8), the sizing Preceding includes taste removal process.
9. a kind of super thick PVC roll material production method according to claim 1, which is characterized in that according to weight ratio, the plasticising Agent is zinc borate 5-10 part, 3-5 parts of titanate esters, 4-7 parts of jet and 3-6 parts of polyvinyl chloride wax, and the stabilizer is calcium stearate 3-6 parts, 2-6 parts of organotin, 1-3 parts of zeolite and 1-2 parts of gadolinium hydroxide, the processing aid further include a nanometer volcanic mud 0.1- 0.2 part, 2-4 parts of magnesium hydroxide, 0.5-1 parts of Cab-O-sil, 1-2 parts of nanometer titanium dioxide antimony, 1-2 parts of sodium fluoride and suitable Ding Xier acid anhydrides 0.1-0.3 parts.
CN201811018658.XA 2018-09-03 2018-09-03 A kind of super thick PVC roll material production method Withdrawn CN109370087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811018658.XA CN109370087A (en) 2018-09-03 2018-09-03 A kind of super thick PVC roll material production method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811018658.XA CN109370087A (en) 2018-09-03 2018-09-03 A kind of super thick PVC roll material production method

Publications (1)

Publication Number Publication Date
CN109370087A true CN109370087A (en) 2019-02-22

Family

ID=65404149

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811018658.XA Withdrawn CN109370087A (en) 2018-09-03 2018-09-03 A kind of super thick PVC roll material production method

Country Status (1)

Country Link
CN (1) CN109370087A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102924844A (en) * 2012-10-09 2013-02-13 李永平 Ultra-permeable PVC (polyvinyl chloride) film and preparation method thereof
CN103029311A (en) * 2012-12-12 2013-04-10 浙江博泰塑胶有限公司 Semi-rigid PVC (polyvinyl chloride) decorative membrane
CN103044804A (en) * 2012-12-11 2013-04-17 浙江博泰塑胶有限公司 Flame-retardant transparent floor film and production technology thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102924844A (en) * 2012-10-09 2013-02-13 李永平 Ultra-permeable PVC (polyvinyl chloride) film and preparation method thereof
CN103044804A (en) * 2012-12-11 2013-04-17 浙江博泰塑胶有限公司 Flame-retardant transparent floor film and production technology thereof
CN103029311A (en) * 2012-12-12 2013-04-10 浙江博泰塑胶有限公司 Semi-rigid PVC (polyvinyl chloride) decorative membrane

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王文广: "《"十三五"普通高等教育本科规划教材 聚合物改性原理》", 31 March 2018, 北京：中国轻工业出版社 *

Similar Documents

Publication Publication Date Title
CN103756197B (en) High definition transparent pvc film and preparation method thereof
CN102942754B (en) High-hardness polyvinyl chloride free foaming plate material and preparation method of same
CN111875864B (en) Polyethylene PE microporous breathable film for medical protective clothing and preparation method thereof
CN104250406A (en) CPE/CPVC rubber-plastic thermal-insulation material and preparation method thereof
CN107177146A (en) A kind of weather-resistance flame-retardant high-performance glass surface protection film and preparation method thereof
CN106398018A (en) Process for preparing polyvinyl chloride cable material
CN109575473A (en) The widely used heat preservation PVC board of one kind and its production method
CN109721907B (en) Flame-retardant polyvinyl alcohol film, composition and preparation method thereof
CN104744849B (en) A kind of Environmental-friendantistatic antistatic high-flame-retardantPVC PVC sheath material and preparation method thereof
CN104650290A (en) Polymer nano ZnO compound antibacterial agent for synthetic leathers based on in-situ polymerization process and preparation method of polymer nano ZnO compound antibacterial agent
CN109370087A (en) A kind of super thick PVC roll material production method
CN113502002A (en) Processing aid for plastics and preparation method thereof
CN109721910B (en) Plasticizer, polyvinyl alcohol composition, polyvinyl alcohol film and preparation method thereof
CN110499011B (en) Waterproof plastic uptake film and preparation method and application thereof
CN109401111A (en) A kind of high-performance calendering composite material method for shaping
CN111331981A (en) Electrostatic adsorption flame-retardant film
CN109294110A (en) A kind of ultra-wide PVC roll material production method
CN106188963A (en) PVC sheet and preparation technology thereof
CN109370098A (en) A kind of micro- contraction method of ultra-wide PVC roll material
CN103937127B (en) A kind of polyblend tubing containing HPVC/SPVC/CPVC and preparation method thereof
CN109280290A (en) A kind of super film of polyvinylchloride
CN109370089A (en) A kind of super thick high stability PVC roll material
CN115340725B (en) High-tensile-strength polypropylene film for lithium battery current collector and preparation method thereof
CN109383100A (en) A kind of micro- contraction method of PVC roll material ultra-wide lamination coating
CN109370086A (en) One kind zero shrinks the super film processing method of ultra-wide

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication

Application publication date: 20190222

WW01 Invention patent application withdrawn after publication