CN106189772A - Water paint and the method utilizing this water paint preparation decoration mold pressing drawing film - Google Patents

Water paint and the method utilizing this water paint preparation decoration mold pressing drawing film Download PDF

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Publication number
CN106189772A
CN106189772A CN201610572805.2A CN201610572805A CN106189772A CN 106189772 A CN106189772 A CN 106189772A CN 201610572805 A CN201610572805 A CN 201610572805A CN 106189772 A CN106189772 A CN 106189772A
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China
Prior art keywords
water paint
coating
aqueous
water
basement membrane
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Granted
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CN201610572805.2A
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CN106189772B (en
Inventor
张学斌
张腾龙
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Jiangsu Sunderray Laser Packaging Materials Co Ltd
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Jiangsu Sunderray Laser Packaging Materials Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
    • B05D7/04—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber to surfaces of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3203—Polyhydroxy compounds
    • C08G18/3206—Polyhydroxy compounds aliphatic
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/6505—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6511—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38 compounds of group C08G18/3203
    • C08G18/6517—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen the low-molecular compounds being compounds of group C08G18/32 or polyamines of C08G18/38 compounds of group C08G18/3203 having at least three hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/75—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
    • C08G18/751—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring
    • C08G18/752—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group
    • C08G18/753—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group
    • C08G18/755—Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic containing only one cycloaliphatic ring containing at least one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group containing one isocyanate or isothiocyanate group linked to the cycloaliphatic ring by means of an aliphatic group having a primary carbon atom next to the isocyanate or isothiocyanate group and at least one isocyanate or isothiocyanate group linked to a secondary carbon atom of the cycloaliphatic ring, e.g. isophorone diisocyanate
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
    • C08J7/0423—Coating with two or more layers, where at least one layer of a composition contains a polymer binder with at least one layer of inorganic material and at least one layer of a composition containing a polymer binder
    • 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
    • C08K5/05—Alcohols; Metal alcoholates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2201/00—Polymeric substrate or laminate
    • B05D2201/02—Polymeric substrate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2503/00—Polyurethanes
    • 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
    • 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
    • C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
    • C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • C08J2369/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
    • 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
    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2475/04—Polyurethanes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

Abstract

The present invention relates to a kind of water paint and the method utilizing this water paint preparation decoration to mold drawing film, Environmental Protective Water-paint is used to replace solvent based coating, said method comprising the steps of: require to produce the roller of the lines effect carving out requirement according to required lines, then extrude corresponding lines in basement membrane upper mold；The water paint diluent prepared is diluted, then it is coated with carrying textured basement membrane on coating machine, the oven temperature of coating machine is adjusted to 80 160 DEG C, baking oven is the distribution of bridge-type type, the starting up speed of coating machine is 70 ms/min, production line to be coated stably rear starting energy-saving drying device, the baking oven being distributed bridge-type type by heat accumulating type oxidation furnace is heated up, and progressively coater speed is improved；At cated base film surface metal cladding, metal cladding is under vacuum conditions, and METAL HEATING PROCESS melts to evaporation, and metallic atom condenses in polymer surface, forms very thin metal level, thus forms drawing film.

Description

Water paint and the method utilizing this water paint preparation decoration mold pressing drawing film
Technical field
The present invention relates to packaging film technical field, particularly to a kind of water paint and utilize this water paint preparation decoration By the preparation method molding drawing film.
Background technology
At present, global printing industry is all blowing " green " printing wind.Also it is such in China, shows according to related data Showing, by the end of in April, 2012, existing 103 printing enterprises in the whole nation obtain Chinese environmental famous special product certification.In recent years, with Improving constantly and the development of science and technology of living standard, increasing country, enterprise and people start to pay attention to that " environmental protection " change sends out Exhibition." greenization ", " environmental protection " become theme and the central point of current social development.Environmental protection has become environmental-protection decorative bag Filling inundant development trend, non-environment-friendly package material is gradually eliminated, and the die is cast.
Since entering 21 century, along with stepping up of living standards of the people, surface decoration material is also into quickly sending out Exhibition period, wherein thin-film material such as PET film, OPP film, PC film and all kinds of laminated films etc. are with its stable processing technique, surface dress Decorations pattern and effect is various, using method is simple, cost performance is high and occupy novel surface ornament materials market leadingly Position.But the packaging of fineness the most but also exists many problems, such as: the packaging of luxury is excessively pursued by enterprise, causes and is packaged into This significantly promotes, and national resources waste is huge；Each enterprise, for grabbing market, uses non-degradable aluminum foil composite paper, mirrors in a large number The non-environmental protection materials such as face paperboard form wire-drawing effect, be difficult to degraded, recycle after this type of packaging film is discarded；Such material Use the speed of production greatly reducing decoration film, and non-degradable, have a strong impact on the production efficiency of enterprise.
Coated film is the blank produced in the types of functionality film later stage, and the rational coating in coated film not only can give well Printability, and also taken on the mold pressing function of laser anti-counterfeiting, give knot good between the metallic atom being deposited with simultaneously Make a concerted effort.This coating is significantly improved by heatproof after molding, and can meet the packing instructions of continuous high speed high temperature production.Current domestic painting Cloth film produces and generally there is the discharge of a large amount of chemical organic solvent, and environment-friendly type coating application technology is immature；Coated film dissolvent residual Puzzlement；It is the unhappiest generally to there is speed of production in domestic coating line；Product instability when post-treatment molds wire drawing lacks Fall into many, mold pressing speed and be unable to lift etc. problem.
Summary of the invention
The technical problem to be solved is to provide a kind of environment-friendlywater-based water-based paint, this water for above-mentioned prior art Property coating may be directly applied to mold on drawing film, make the packaging material prepared have anti-metal wire-drawing effect true to nature, simultaneously Also provide for a kind of method utilizing this water paint preparation decoration to mold drawing film, to improve the imitative metal effect of film, thus Improve paper and imitate metal effect, the environmental problem of production process can be reduced simultaneously, reach the requirement of environmental protection.
The present invention solves the technical scheme that the problems referred to above are used: a kind of water paint, it is former by following mass parts Material is prepared from:
Aqueous polyurethane 25-50 part；
Deionized water 35-75 part；
Defoamer 0.03-0. 1 part；
Ethanol 5-15 part；
PH value regulator 0.2-0.5 part；
Wetting agent 0.4-0.8 part；
Levelling agent 0.6-1.2 part,
Described aqueous polyurethane prepares by the following method: under drying nitrogen is protected, by the 20-50 part hydroxyl value after vacuum dehydration =40-50, the dihydroxylic alcohols resin of the equal molecule=1800-2000 of number and isophorone diisocyanate 22-40 part add reaction vessel In, in 85 DEG C 90 DEG C stirring reaction 0.5h 1.5h；Reduction temperature of reaction system, to 40 DEG C 55 DEG C, adds aqueous chain extender 3.5-5 part, cross-linking agent trimethylolpropane 0.28-0.4 part, solvent acetone 15-20 part, catalyst organic zinc 0.001-0.005 Part and environmental protection organotin 0.001-0.005 part, in 50 DEG C 60 DEG C stirring reaction 3.5h-4.5h；Isocyanide in question response system When perester radical mass contg no longer changes, it is down to room temperature, adds nertralizer triethylamine 1.6-5 parts and neutralize into salt；Subsequently in high shear Add 60-80 part water and 1.18-2 part organic amine chain extension under power, obtain transparent aqueous polyurethane emulsion；By aqueous polyurethane breast Liquid adds 0.01-0.1 part aqueous at 45 DEG C-55 DEG C and takes off acetone agent, then within 70-90 minute, sloughs solvent by decompression distillation, obtains Solid content is the aqueous polyurethane emulsion of 35% 45%.
A kind of method utilizing above-mentioned water paint to prepare decoration drawing film, said method comprising the steps of:
Step one, mold on the basement membrane chosen
Require to produce the roller of the lines effect carving out requirement according to required lines, then extrude corresponding stricture of vagina in basement membrane upper mold Road；
Step 2, aqueous mold the coating of coating and produce
It is 20% 28% that the water paint diluent prepared is diluted to solid content, then on coating machine with lines Basement membrane be coated, the oven temperature of coating machine is adjusted to 80-160 DEG C, baking oven be bridge-type type distribution, the starting up speed of coating machine It is 70 ms/min, production line to be coated stably rear starting energy-saving drying device, is come the distribution of bridge-type type by heat accumulating type oxidation furnace Baking oven heats up, and progressively improves coater speed to 100 ms/min 120 ms/min；
Step 3, on basement membrane metal cladding
Completing after step 2 at cated base film surface metal cladding, metal cladding is under vacuum conditions, METAL HEATING PROCESS is melted Melting to evaporation, metallic atom condenses in polymer surface, forms very thin metal level, thus forms drawing film.
Preferably, in step 2,85 parts of water paints and 1 part of dumb light powder are added rotating speed is 1800 rev/min 2500 Rev/min high speed dispersor after, stir 30 minutes, be subsequently adding 0.001 part of levelling agent and 0.001 part of defoamer auxiliary agent, then Rotating speed is to stir 60 minutes under the lower-speed state of 450 revs/min 550 revs/min, filters and packages, add after being cooled to room temperature 0.02 part of mill base modulates the aqueous of the color effects of needs and molds coating, aqueous finally molds coating diluent and is diluted to Solid content is 20% 28%, is used further to decoration and molds the production of drawing film.
Compared with prior art, it is an advantage of the current invention that:
1, use Environmental Protective Water-paint to replace solvent based coating, possess outside good filming, the release property good to solvent；Also need There is splendid thermoplasticity, under coating not burst conditions, meet the requirement of follow-up drawing process.
2, decoration uses water paint to replace solvent based coating with molding drawing film, decreases the use of organic solvent, molten Agent residual is significantly better than domestic similar level, reaches advanced world standards.
3, employing one-step mould or repeatedly mould pressing technology, make membrane surface form the lines simulated effect of metal, can increase Product verisimilitude, improve the using effect of product.
4, selecting heat accumulation type thermal oxidation technology by after solvent centralized recovery, high-temp combustion reduces the discharge of solvent, handle simultaneously The heat that burning produces heats up for coating machine oven, reasonably decreases waste gas discharge and saves again the energy.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
Embodiment one,
A kind of water paint, it is prepared from by the raw material of following mass parts: 25 kg aqueous polyurethanes, 35 kg deionized waters, 0.03kg defoamer BYK024,5 kg ethanol 5,0.2 kg pH value regulator DMAE, 0.4 kg wetting agent TEGO270 and 0.6 Kg levelling agent RM-2020, wherein, aqueous polyurethane prepares by the following method: under drying nitrogen is protected, after vacuum dehydration 20kg hydroxyl value=40-50, the dihydroxylic alcohols resin of number-average molecular weight=1800-2000 and isophorone diisocyanate 22kg add Enter in reaction vessel, in 85 DEG C of stirring reaction 0.5h；Reduction temperature of reaction system, to 40 DEG C, adds aqueous chain extender 3.5kg, friendship Connection agent trimethylolpropane 0.28kg, solvent acetone 15kg, catalyst organic zinc (DY-65) 0.001kg and environmental protection organotin (DY-28) 0.001kg, in 50 DEG C of stirring reaction 3.5h；When in question response system, isocyanate content no longer changes, it is down to Room temperature, add in nertralizer triethylamine 1.6 kg with become salt；The most under high shear add 60kg water and 1.18 kg organic amines Chain extension, obtains transparent aqueous polyurethane emulsion；Aqueous polyurethane emulsion is added 0.01kg aqueous at 45 DEG C and takes off acetone agent, then Within 70 minutes, sloughing solvent by decompression distillation, obtain the aqueous polyurethane emulsion that solid content is 35%, this emulsion appearance is translucent, PH value 7-8 softening point 150 DEG C (reusable after acetone condensation).
Embodiment two,
A kind of water paint, it is prepared from by the raw material of following mass parts: 30 kg aqueous polyurethanes, 45 kg deionized waters, 0.05 kg defoamer BYK024,8kg ethanol 5,0.25 kg pH value regulator DMAE, 0.46 kg wetting agent TEGO270 and 0.7 kg levelling agent RM-2020, wherein, aqueous polyurethane prepares by the following method: under drying nitrogen is protected, vacuum taken off 25kg hydroxyl value=40-50, the dihydroxylic alcohols resin of number-average molecular weight=1800-2000 and isophorone diisocyanate after water 27kg adds in reaction vessel, in 87 DEG C of stirring reaction 1h；Reduction temperature of reaction system, to 45 DEG C, adds aqueous chain extender 4.2kg, cross-linking agent trimethylolpropane 0.3kg, solvent acetone 18kg, catalyst organic zinc (DY-65) 0.003kg and environmental protection Organotin (DY-28) 0.003kg, in 55 DEG C of stirring reaction 4h；When in question response system, isocyanate content no longer changes, Be down to room temperature, add in nertralizer triethylamine 2 kg with become salt；The most under high shear add 70kg water and 1.25 kg are organic Amine chain extension, obtains transparent aqueous polyurethane emulsion；Aqueous polyurethane emulsion is added 0.02kg aqueous at 50 DEG C and takes off acetone agent, Within 80 minutes, sloughing solvent by decompression distillation again, obtain the aqueous polyurethane emulsion that solid content is 42%, this emulsion appearance is semi-transparent Bright, pH value 7-8 softening point 150 DEG C (reusable after acetone condensation).
Embodiment three,
A kind of water paint, it is prepared from by the raw material of following mass parts: 50 kg aqueous polyurethanes, 75 kg deionized waters, 0.1 kg defoamer BYK024,15kg ethanol 5,0.5 kg pH value regulator DMAE, 0.8 kg wetting agent TEGO270 and 1.2 Kg levelling agent RM-2020, wherein, aqueous polyurethane prepares by the following method: under drying nitrogen is protected, after vacuum dehydration 35kg hydroxyl value=40-50, the dihydroxylic alcohols resin of number-average molecular weight=1800-2000 and isophorone diisocyanate 40kg add Enter in reaction vessel, in 90 DEG C of stirring reaction 1.5h；Reduction temperature of reaction system, to 55 DEG C, adds aqueous chain extender 5kg, crosslinking Agent trimethylolpropane 0.4kg, solvent acetone 20kg, catalyst organic zinc (DY-65) 0.005kg and environmental protection organotin (DY- 28) 0.005kg, in 60 DEG C of stirring reaction 4.5h；When isocyanate content no longer changes in question response system, it is down to room Temperature, add in nertralizer triethylamine 5 kg with become salt；The most under high shear add 80kg water and 2 kg organic amine chain extensions, To transparent aqueous polyurethane emulsion；Aqueous polyurethane emulsion is added 0.1kg aqueous at 55 DEG C and takes off acetone agent, then by decompression Distilling and slough solvent in 90 minutes, obtain the aqueous polyurethane emulsion that solid content is 50%, this emulsion appearance is translucent, pH value 7-8 Softening point 150 DEG C (reusable after acetone condensation).
Using Environmental Protective Water-paint to replace solvent based coating in the present embodiment, screening suitable thermoplastic resin is to manufacture mould The key of extrusion material.Aqueous molds coating in addition to possessing good filming, the release property good to solvent；Also need to splendid Thermoplasticity.
A kind of method utilizing above-mentioned water paint preparation decoration to mold drawing film in the present embodiment, described method bag Include following steps:
Step one, mold on the basement membrane chosen
Require to produce the roller of the lines effect carving out requirement according to required lines, then extrude corresponding stricture of vagina in basement membrane upper mold Road, basement membrane includes PC film, Opp film, PET film or Bopp film etc., selects Bopp film to carry out mould as basement membrane in the present embodiment,
Lines effect: according to basement membrane material and the temperature of roller, pressure, speed weighs product wire-drawing effect
Such as: pc film-----120 DEG C of-----pressure 20KG------speed of temperature 60 ms/min
Bopp film-----135 DEG C of-----pressure 30KG------speed of temperature 80 ms/min
Pet film-----160 DEG C of-----pressure 35KG------speed of temperature 70 ms/min
Set parameter winding tension: 7.5KG unwinding tension: the material of 5.6KG film and weight determine the size of tension force；Front and back Put into anti-static device rope to eliminate the electrostatic produced in production.
Step 2, aqueous mold the coating of coating and produce
It is 20% 28% that the water paint diluent (ethanol+pure water 1:1) prepared is diluted to solid content, at coating machine Above being coated with carrying textured basement membrane, the oven temperature of coating machine is adjusted to 80-160 DEG C, and baking oven is the distribution of bridge-type type, specifically Temperature Distribution relevant with the basement membrane of selection, such as select PET film when being basement membrane, the Temperature Distribution of baking oven be 80 DEG C-95 DEG C- 110 DEG C-120 DEG C-100 DEG C, the starting up speed of coating machine is 70 ms/min, and production line to be coated stably rear starting energy-saving is dried dress Putting, the baking oven being distributed bridge-type type by energy-saving drying device is heated up, and progressively improves coater speed to 100 Ms/min 120 ms/min, energy-saving drying device is heat accumulating type oxidation furnace (RTO), is a kind of efficiently VOCs treatment equipment. Its principle is that combustible exhaust gas is at high temperature oxidized to oxide and the water of correspondence, thus purifies waste gas, and reclaims waste gas decomposition Time the heat that discharged, waste gas decomposition efficiency reaches more than 99%, and heat recovery efficiency reaches more than 95%.RTO agent structure It is made up of combustor, ceramic packing bed and switching valve etc..According to client's actual demand, select different energy recovery modes and cut Change valve mode.Thermal accumulating incinerator uses the organic exhaust gas of low concentration in thermal oxidation method process, returns with ceramic heat-storing bed heat exchanger Receive heat.It is made up of ceramic heat-storing bed, autocontrol valve, combustor and control system etc..It is mainly characterized by comprising: at the bottom of energy storage bed The autocontrol valve in portion is connected with inlet manifold and exhaust main respectively, and energy storage bed, will be by burning by reversal valve alternately commutation Room high-temperature gas heat accumulation out, and preheat the organic exhaust gas entering energy storage bed；Use ceramic heat-storing absorbed, release Heat；Be preheating to the organic exhaust gas of uniform temperature (>=760 DEG C) in combustor generation oxidation reaction, generate carbon dioxide and Water, is purified.
Step 3, on basement membrane metal cladding
Completing after step 2 at cated base film surface metal cladding, metal cladding is under vacuum conditions, METAL HEATING PROCESS is melted Melting to evaporation, metallic atom condenses in polymer surface, forms very thin metal level.Metal cladding is compared greatly with metal forming Decrease greatly the consumption of metal, save the energy and material, reduce cost.Compound metal foil thickness mostly is 6～9um, and The metal layer thickness of metal-coated films is about 400Å(0.04um) left and right, its consumption amount of metal is about the 1/200 of metal forming, And speed of production reaches as high as 700m/min.There is excellent folding resistance and good toughness, seldom there will be pin hole and breach, Crack performance without flexure, also increases to the barrier of gas, water vapour, abnormal smells from the patient, light etc..And have splendid metal light Pool, luminous reflectance is up to more than 96%；And colour film product can be formed by coating process, its decoration result is metal forming institute Too late.
In step 2, can process water paint to obtain more preferable wire-drawing effect according to the demand of client, Such as, above-mentioned 85g water paint and 1g dumb light powder C803 are added high speed dispersor (rotating speed is 1800 revs/min 2500 turns/ Point) after, stir 30 minutes, be subsequently adding 0.001g levelling agent and 0.001g defoamer auxiliary agent, then low speed (rotating speed is 450 turns/ Divide 550 revs/min) stir 60 minutes, filter and package after being cooled to room temperature, need to add mill base (Jie Mei according to client YB2234+YB2101) modulating the color effects of needs, wherein water paint plays release transfer effect, and C803 plays dumb light Effect, can adjust mist degree size, and mill base adds mainly adjusts color, adds levelling agent and defoamer and produces mainly for intaglio plate coating Time the removal of foam that produces, then carry out coating property test during roller coat uniformly, the coating that will have produced test at the beginning of dryness, thorough Dryness ,-4 glasss of tested viscosity of painting and coating solids, and make a record, finally aqueous is molded coating diluent (ethanol+pure Water purification 1:1) to be diluted to solid content be 20% 28%, it is used further to decoration and molds the production of drawing film.
The wire drawing obtained after below using above-mentioned water paint and preparation method to use 250 mesh ceramic anilox rollers to be coated with online Film:
Project Unit Index
Coating weight g/m2 0.35~0.65
Coating solids % 30
Outward appearance / Lines clearly exquisiteness, the depth are uniform
Wetting tension mN/m Coated face >=36
Heat resistance ℃ 90-140
The testing result that this drawing film is delivered to detect accordingly structure is as follows:
In addition to the implementation, other embodiments, all employing equivalents or equivalence substitute mode have been present invention additionally comprises The technical scheme formed, all should fall within the scope of the hereto appended claims.

Claims (3)

1. a water paint, it is characterised in that: it is prepared from by the raw material of following mass parts:
Aqueous polyurethane 25-50 part；
Deionized water 35-75 part；
Defoamer 0.03-0. 1 part；
Ethanol 5-15 part；
PH value regulator 0.2-0.5 part；
Wetting agent 0.4-0.8 part；
Levelling agent 0.6-1.2 part,
Described aqueous polyurethane prepares by the following method: under drying nitrogen is protected, by the 20-50 part hydroxyl value after vacuum dehydration =40-50, the dihydroxylic alcohols resin of the equal molecule=1800-2000 of number and isophorone diisocyanate 22-40 part add reaction vessel In, in 85 DEG C 90 DEG C stirring reaction 0.5h 1.5h；Reduction temperature of reaction system, to 40 DEG C 55 DEG C, adds aqueous chain extender 3.5-5 part, cross-linking agent trimethylolpropane 0.28-0.4 part, solvent acetone 15-20 part, catalyst organic zinc 0.001-0.005 Part and environmental protection organotin 0.001-0.005 part, in 50 DEG C 60 DEG C stirring reaction 3.5h-4.5h；Isocyanide in question response system When perester radical mass contg no longer changes, it is down to room temperature, adds nertralizer triethylamine 1.6-5 parts and neutralize into salt；Subsequently in high shear Add 60-80 part water and 1.18-2 part organic amine chain extension under power, obtain transparent aqueous polyurethane emulsion；By aqueous polyurethane breast Liquid adds 0.01-0.1 part aqueous at 45 DEG C-55 DEG C and takes off acetone agent, then within 70-90 minute, sloughs solvent by decompression distillation, obtains Solid content is the aqueous polyurethane emulsion of 35% 45%.
2. the method that decoration drawing film prepared by the water paint utilizing claim 1, it is characterised in that: described method bag Include following steps:
Step one, mold on the basement membrane chosen
Require to produce the roller of the lines effect carving out requirement according to required lines, then extrude corresponding stricture of vagina in basement membrane upper mold Road；
Step 2, aqueous mold the coating of coating and produce
It is 20% 28% that the water paint diluent prepared is diluted to solid content, then on coating machine with lines Basement membrane be coated, the oven temperature of coating machine is adjusted to 80-160 DEG C, baking oven be bridge-type type distribution, the starting up speed of coating machine It is 70 ms/min, production line to be coated stably rear starting energy-saving drying device, is come the distribution of bridge-type type by heat accumulating type oxidation furnace Baking oven heats up, and progressively improves coater speed to 100 ms/min 120 ms/min；
Step 3, on basement membrane metal cladding
Completing after step 2 at cated base film surface metal cladding, metal cladding is under vacuum conditions, METAL HEATING PROCESS is melted Melting to evaporation, metallic atom condenses in polymer surface, forms very thin metal level, thus forms drawing film.
A kind of preparation method decorating use drawing film the most according to claim 2, it is characterised in that: in step 2, will After 85 parts of water paints and 1 part of dumb light powder add the high speed dispersor that rotating speed is 1800 revs/min 2500 revs/min, stir 30 points Clock, is subsequently adding 0.001 part of levelling agent and 0.001 part of defoamer auxiliary agent, then is 450 revs/min 550 revs/min low at rotating speed Stir 60 minutes under speed state, filter and package after being cooled to room temperature, add 0.02 part of mill base and modulate the color effects of needs Aqueous mold coating, aqueous finally molding coating diluent and is diluted to solid content is 20% 28%, is used further to decoration and uses Mold the production of drawing film.
CN201610572805.2A 2016-07-20 2016-07-20 Water paint and the method using water paint preparation decoration molding drawing film Active CN106189772B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000119741A (en) * 1998-10-12 2000-04-25 Daido Steel Co Ltd Method for holding atmosphere in furnace using heat- storage type burner as heat-source and atmospheric furnace
CN101407654A (en) * 2008-11-14 2009-04-15 上海维凯化学品有限公司 High peeling environment-friendly type aqueous transfer coating and use thereof
CN202480583U (en) * 2012-01-14 2012-10-10 江阴新光镭射包装材料有限公司 Environmentally-friendly water-based matt transfer film structure
CN102719185A (en) * 2012-06-27 2012-10-10 安徽灵达化工科技有限公司 Benzene and homolog thereof-free waterborne polyurethane laser transfer coating and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000119741A (en) * 1998-10-12 2000-04-25 Daido Steel Co Ltd Method for holding atmosphere in furnace using heat- storage type burner as heat-source and atmospheric furnace
CN101407654A (en) * 2008-11-14 2009-04-15 上海维凯化学品有限公司 High peeling environment-friendly type aqueous transfer coating and use thereof
CN202480583U (en) * 2012-01-14 2012-10-10 江阴新光镭射包装材料有限公司 Environmentally-friendly water-based matt transfer film structure
CN102719185A (en) * 2012-06-27 2012-10-10 安徽灵达化工科技有限公司 Benzene and homolog thereof-free waterborne polyurethane laser transfer coating and preparation method thereof

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