CN103074802A - Preparation method for ultraviolet curing water-based paper varnish - Google Patents
Preparation method for ultraviolet curing water-based paper varnish Download PDFInfo
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Abstract
The invention relates to a preparation method for an ultraviolet curing water-based paper varnish. Most of ultraviolet curing paper varnishes are solvent type varnishes, acrylic ester active dilute monomers are inevitably used in a formula, and certain monomers are possibly harmful to the environment and the human health. The preparation method comprises the steps as follows: carrying out vacuum degassing on polymer polyol, cooling, and adding isocyanate monomers for polymerization reaction; adding a hydrophilic chain extender for reaction; cooling, adding functional monomers for reaction, adjusting the pH value of a reaction system, adding a mixture of de-ionized water and polymeric seed latex for emulsification to prepare a photo-curing water-based polyurethane-acrylate emulsion; and adding a photoinitiator, a defoaming agent and a leveling agent to prepare the ultraviolet curing water-based paper varnish. According to the preparation method, an active diluent in the conventional varnish is replaced with water, volatile organic compounds are prevented being generated in the paper operation environment, and the full green and environment-friendly effect can be achieved.
Description
Technical field
The invention belongs to chemical field, be specifically related to the preparation method that a kind of paper is used the UV-curable water-borne oil polish.
Background technology
The ultra-violet curing glazing processing of paper product is by roller coat (or spray, print) the water white coating of last layer at printed matter surface; through forming thin and uniform transparent bright layer on the Paper or cardboard surface after levelling, ultraviolet light polymerization, the press polish; after paper product is processed by glazing; surface gloss, smoothness, anti-wear performance and water resistance have been increased; can play the effect of protection printing figure message, therefore be widely used in packing and decorating, picture album, significantly decorate and the Surface Machining of the printed matter such as advertisement in.
The ultra-violet curing gloss oil for paper is a kind of Paper or cardboard to be carried out surface treatment to obtain the printing chemicals of very high glossiness, ABRASION RESISTANCE and water resistance, have that hardening time is short, film forming speed is fast, glossiness is high and the characteristics such as cost is low, be used widely.But because domestic most oil polish that uses is solvent-borne type at present, use inevitably the activity diluting monomer of esters of acrylic acid in the prescription, wherein some monomer may be harmful to environment and health.In addition, paper is a kind of porous adsorbing medium, and activated monomer is difficult to complete reaction in coating, solidification process, is easy to absorption and residues in the paper fibre layer, can adverse influence be arranged to the safety index of printed matter long-term behaviour and environment.Therefore, the gloss oil for paper development trend is to replace reactive diluent with water, avoids the generation of volatilizable organic matter (VOC) in the paper product environment for use, and if gloss oil for paper be aqueous components, then the reclaiming of paper product processing is more prone to, and can realize completely environmental protection effect.
Summary of the invention
The purpose of this invention is to provide a kind of preparation method who avoids the paper usefulness UV-curable water-borne oil polish of the generation of volatilizable organic matter (VOC) in the paper product environment for use.
The technical solution adopted in the present invention is:
The paper preparation method of UV-curable water-borne oil polish is characterized in that:
Realized by following steps:
Step 1: the polymer polyatomic alcohol that adds 10.8 weight portions in the dry reactor, and after 110-120 ℃ of vacuum outgas, be cooled to 50-80 ℃, add a kind of isocyanates monomer of 7.63-14.62 weight portion or two kinds of isocyanates monomers with 1:(1-5) the mixture that mixes of mass ratio in reactor, carry out polymerisation at 70-90 ℃, the reaction time is 1-5h;
Step 2: in reactor, add the hydrophilic chain extender of 0.68-3.59 weight portion at 60-80 ℃ of reaction 2-5h again;
Step 3: cool to 50 ℃, the functional monomer that adds the 1.62-6.17 weight portion, reaction 2-5h, be cooled to 15-40 ℃, adding organic base conditioned reaction system pH is 7-8.5, the mixture that adds deionized water and polymeric seed latex under the high-speed stirred carries out emulsification, and the mass ratio of deionized water and polymeric seed latex is 1:1-2, namely makes the photocuring water-based polyurethane-acrylate emulsion;
Step 4: take by weighing the photocuring water-based polyurethane-acrylate emulsion and add light trigger, defoamer, levelling agent, namely make paper UV-curable water-borne oil polish, the quality of light trigger, defoamer, levelling agent accounts for respectively the 1-7% of photocuring water-based polyurethane-acrylate emulsion quality, 0.1-0.5% and 0.4-1%.
In the step 1, it is 1000 polyether Glycols, polyester diol that described polymer polyatomic alcohol is selected from relative molecular mass;
Polyether Glycols is selected from Polyoxypropylene diol, PTMG dihydroxylic alcohols;
Polyester diol is selected from polycaprolactone dihydroxylic alcohols, PCDL, poly adipate succinic acid ester dihydroxylic alcohols.
In the step 1, described isocyanates monomer is selected from isophorone diisocyanate, toluene di-isocyanate(TDI), hexamethylene diisocyanate, methyl diphenylene diisocyanate.
In the step 2, described hydrophilic chain extender is selected from a kind of in dihydromethyl propionic acid in the carboxylic acid type, the dimethylolpropionic acid, or be ethylenediamine base ethyl sulfonic acid sodium, 1 in a kind of and sulfonate type in the dihydromethyl propionic acid, dimethylolpropionic acid in the carboxylic acid type, 4-butanediol-2-sodium sulfonate, 1, a kind of with 1:(0.2-5 in 2-dihydroxy-3-N-morpholinopropanesulfonic acid sodium) mixture that mass ratio mixes.
In the step 3, described functional monomer is selected from hydroxy-ethyl acrylate, hydroxyethyl methylacrylate, hydroxypropyl acrylate, hydroxy propyl methacrylate, pentaerythritol triacrylate.
In the step 3, described organic base is selected from trimethylamine, triethylamine, triethanolamine.
In the step 3, described polymeric seed latex is selected from styrene-butadiene latex, carboxylic styrene butadiene latex, polychloroprene latex, the anionic acrylic resin emulsion of solid content 50%-75%.
In the step 3, described light trigger is selected from IRGACURE 2959, IRGACURE 819DW.
In the step 3, described defoamer is selected from BYK-034, BYK-035, BYK-037, BYK-038.
In the step 3, described levelling agent is selected from BYK-300, BYK-306, BYK-310, BYK-323.
The present invention has the following advantages:
1, replaced reactive diluent in the gloss oil traditionally with water, avoided the generation of paper product VOC (volatilizable organic matter) in environment for use, and oil polish of the present invention is aqueous components, so that the reclaiming of paper product processing is more prone to, can realize completely environmental protection effect.
2, the present invention adopts the mixture of water and polymeric seed latex that performed polymer is carried out emulsification, prepared paper has high solids content and low viscosity with the UV-curable water-borne oil polish, hardening time is short, speed is fast, equipment needed thereby is simple, has increased substantially production efficiency; Product does not contain organic solvent, has reduced atmosphere pollution; Energy consumption is low, has saved the energy.The UV-curable water-borne oil polish combines the energy-conservation advantage of environment-friendly advantage and the photocureable coating of water paint.
The specific embodiment
The present invention will be described in detail below in conjunction with the specific embodiment.
The preparation method that paper involved in the present invention is used the UV-curable water-borne oil polish, realized by following steps:
Step 1: the polymer polyatomic alcohol that adds 10.8 weight portions in the dry reactor, and after 110-120 ℃ of vacuum outgas, be cooled to 50-80 ℃, add a kind of isocyanates monomer of 7.63-14.62 weight portion or two kinds of isocyanates monomers with 1:(1-5) the mixture that mixes of mass ratio in reactor, carry out polymerisation at 70-90 ℃, the reaction time is 1-5h.
Wherein, it is 1000 polyether Glycols, polyester diol that polymer polyatomic alcohol is selected from relative molecular mass, polyether Glycols is selected from Polyoxypropylene diol, PTMG dihydroxylic alcohols, and polyester diol is selected from polycaprolactone dihydroxylic alcohols, PCDL, poly adipate succinic acid ester dihydroxylic alcohols;
The isocyanates monomer is selected from isophorone diisocyanate, toluene di-isocyanate(TDI), hexamethylene diisocyanate, methyl diphenylene diisocyanate.
Step 2: in reactor, add the hydrophilic chain extender of 0.68-3.59 weight portion at 60-80 ℃ of reaction 2-5h again;
Wherein, hydrophilic chain extender is selected from a kind of in dihydromethyl propionic acid in the carboxylic acid type, the dimethylolpropionic acid, or be ethylenediamine base ethyl sulfonic acid sodium, 1 in a kind of and sulfonate type in the dihydromethyl propionic acid, dimethylolpropionic acid in the carboxylic acid type, 4-butanediol-2-sodium sulfonate, 1, a kind of with 1:(0.2-5 in 2-dihydroxy-3-N-morpholinopropanesulfonic acid sodium) mixture that mass ratio mixes.
Step 3: cool to 50 ℃, the functional monomer that adds the 1.62-6.17 weight portion, reaction 2-5h, be cooled to 15-40 ℃, adding organic base conditioned reaction system pH is 7-8.5, the mixture that adds deionized water and polymeric seed latex under the high-speed stirred carries out emulsification, and the mass ratio of deionized water and polymeric seed latex is 1:1-2, namely makes the photocuring water-based polyurethane-acrylate emulsion.
Wherein, functional monomer is selected from hydroxy-ethyl acrylate, hydroxyethyl methylacrylate, hydroxypropyl acrylate, hydroxy propyl methacrylate, pentaerythritol triacrylate;
Organic base is selected from trimethylamine, triethylamine, triethanolamine;
Polymeric seed latex is selected from styrene-butadiene latex, carboxylic styrene butadiene latex, polychloroprene latex, the anionic acrylic resin emulsion of solid content 50%-75%;
Light trigger is selected from IRGACURE 2959, IRGACURE 819DW;
Defoamer is selected from BYK-034, BYK-035, BYK-037, BYK-038;
Levelling agent is selected from BYK-300, BYK-306, BYK-310, BYK-323.
Step 4: take by weighing the photocuring water-based polyurethane-acrylate emulsion and add light trigger, defoamer, levelling agent, namely make paper UV-curable water-borne oil polish, the quality of light trigger, defoamer, levelling agent accounts for respectively the 1-7% of photocuring water-based polyurethane-acrylate emulsion quality, 0.1-0.5% and 0.4-1%.
Embodiment 1:
The preparation method that paper is used the UV-curable water-borne oil polish, realized by following steps:
Step 1: add the polymer polyatomic alcohol of 10.8 weight portions in dry reactor, and after 110 ℃ of vacuum outgas, be cooled to 50 ℃, add the isocyanates monomer of 7.63 weight portions in reactor, carry out polymerisation at 70 ℃, the reaction time is 1h.
Wherein, to choose relative molecular mass be 1000 Polyoxypropylene diol to polymer polyatomic alcohol;
The isocyanates monomer is chosen isophorone diisocyanate.
Step 2: in reactor, add the hydrophilic chain extender of 0.68 weight portion at 60 ℃ of reaction 2h again;
Wherein, hydrophilic chain extender is chosen dihydromethyl propionic acid.
Step 3: cool to 50 ℃, the functional monomer that adds 1.62 weight portions, reaction 2h, be cooled to 15 ℃, adding organic base conditioned reaction system pH is 7, the mixture that adds deionized water and polymeric seed latex under the high-speed stirred carries out emulsification, and the mass ratio of deionized water and polymeric seed latex is 1:1, namely makes the photocuring water-based polyurethane-acrylate emulsion.
Wherein, functional monomer is chosen hydroxy-ethyl acrylate;
Organic base is chosen trimethylamine;
Polymeric seed latex is chosen the styrene-butadiene latex of solid content 50%;
Light trigger is chosen IRGACURE 2959;
Defoamer is chosen BYK-034;
Levelling agent is chosen BYK-300.
Step 4: take by weighing the photocuring water-based polyurethane-acrylate emulsion and add light trigger, defoamer, levelling agent, namely make paper UV-curable water-borne oil polish, the quality of light trigger, defoamer, levelling agent accounts for respectively 1%, 0.1% and 0.4% of photocuring water-based polyurethane-acrylate emulsion quality.
Embodiment 2:
The preparation method that paper is used the UV-curable water-borne oil polish, realized by following steps:
Step 1: add the polymer polyatomic alcohol of 10.8 weight portions in dry reactor, and after 110 ℃ of vacuum outgas, be cooled to 50 ℃, add the isocyanates monomer of 8.63 weight portions in reactor, carry out polymerisation at 75 ℃, the reaction time is 1h.
Wherein, to choose relative molecular mass be 1000 Polyoxypropylene diol to polymer polyatomic alcohol;
The isocyanates monomer is chosen toluene di-isocyanate(TDI).
Step 2: in reactor, add the hydrophilic chain extender of 1.10 weight portions at 60 ℃ of reaction 2h again;
Wherein, hydrophilic chain extender is chosen dimethylolpropionic acid.
Step 3: cool to 50 ℃, the functional monomer that adds 2.27 weight portions, reaction 2h, be cooled to 15 ℃, adding organic base conditioned reaction system pH is 7, the mixture that adds deionized water and polymeric seed latex under the high-speed stirred carries out emulsification, and the mass ratio of deionized water and polymeric seed latex is 1:1, namely makes the photocuring water-based polyurethane-acrylate emulsion.
Wherein, functional monomer is chosen hydroxy-ethyl acrylate;
Organic base is chosen trimethylamine;
Polymeric seed latex is chosen the styrene-butadiene latex of solid content 50%;
Light trigger is chosen IRGACURE 2959;
Defoamer is chosen BYK-034;
Levelling agent is chosen BYK-300.
Step 4: take by weighing the photocuring water-based polyurethane-acrylate emulsion and add light trigger, defoamer, levelling agent, namely make paper UV-curable water-borne oil polish, the quality of light trigger, defoamer, levelling agent accounts for respectively 1%, 0.1% and 0.4% of photocuring water-based polyurethane-acrylate emulsion quality.
Embodiment 3:
The preparation method that paper is used the UV-curable water-borne oil polish, realized by following steps:
Step 1: add the polymer polyatomic alcohol of 10.8 weight portions in dry reactor, and after 110 ℃ of vacuum outgas, be cooled to 55 ℃, add the isocyanates monomer of 9.63 weight portions in reactor, carry out polymerisation at 75 ℃, the reaction time is 2h.
Wherein, polymer polyatomic alcohol is chosen the PTMG dihydroxylic alcohols;
The isocyanates monomer is chosen hexamethylene diisocyanate.
Step 2: in reactor, add the hydrophilic chain extender of 1.52 weight portions at 65 ℃ of reaction 3h again;
Wherein, the hydrophilic chain extender mixture that to be dihydromethyl propionic acid mix with the mass ratio of 1:0.2 with ethylenediamine base ethyl sulfonic acid sodium.
Step 3: cool to 50 ℃, the functional monomer that adds 2.92 weight portions, reaction 3h, be cooled to 20 ℃, adding organic base conditioned reaction system pH is 7.5, the mixture that adds deionized water and polymeric seed latex under the high-speed stirred carries out emulsification, and the mass ratio of deionized water and polymeric seed latex is 1:1, namely makes the photocuring water-based polyurethane-acrylate emulsion.
Wherein, functional monomer is chosen hydroxyethyl methylacrylate;
Organic base is chosen trimethylamine;
Polymeric seed latex is chosen the carboxylic styrene butadiene latex of solid content 55%;
Light trigger is chosen IRGACURE 2959;
Defoamer is chosen BYK-035;
Levelling agent is chosen BYK-306.
Step 4: take by weighing the photocuring water-based polyurethane-acrylate emulsion and add light trigger, defoamer, levelling agent, namely make paper UV-curable water-borne oil polish, the quality of light trigger, defoamer, levelling agent accounts for respectively 2%, 0.2% and 0.5% of photocuring water-based polyurethane-acrylate emulsion quality.
Embodiment 4:
The preparation method that paper is used the UV-curable water-borne oil polish, realized by following steps:
Step 1: add the polymer polyatomic alcohol of 10.8 weight portions in dry reactor, and after 115 ℃ of vacuum outgas, be cooled to 60 ℃, add the isocyanates monomer of 10.63 weight portions in reactor, carry out polymerisation at 80 ℃, the reaction time is 2h.
Wherein, to choose relative molecular mass be 1000 PTMG dihydroxylic alcohols to polymer polyatomic alcohol;
The isocyanates monomer is chosen methyl diphenylene diisocyanate.
Step 2: in reactor, add the hydrophilic chain extender of 1.94 weight portions at 65 ℃ of reaction 3h again;
Wherein, the hydrophilic chain extender mixture that to be dihydromethyl propionic acid mix with the mass ratio of 1:1.2 with BDO-2-sodium sulfonate.
Step 3: cool to 50 ℃, the functional monomer that adds 3.57 weight portions, reaction 3h, be cooled to 25 ℃, adding organic base conditioned reaction system pH is 7.5, the mixture that adds deionized water and polymeric seed latex under the high-speed stirred carries out emulsification, and the mass ratio of deionized water and polymeric seed latex is 1:1.5, namely makes the photocuring water-based polyurethane-acrylate emulsion.
Wherein, functional monomer is chosen hydroxyethyl methylacrylate;
Organic base is chosen triethylamine;
Polymeric seed latex is chosen the carboxylic styrene butadiene latex of solid content 60%;
Light trigger is chosen IRGACURE 2959;
Defoamer is chosen BYK-035;
Levelling agent is chosen BYK-306.
Step 4: take by weighing the photocuring water-based polyurethane-acrylate emulsion and add light trigger, defoamer, levelling agent, namely make paper UV-curable water-borne oil polish, the quality of light trigger, defoamer, levelling agent accounts for respectively 3%, 0.2% and 0.6% of photocuring water-based polyurethane-acrylate emulsion quality.
Embodiment 5:
The preparation method that paper is used the UV-curable water-borne oil polish, realized by following steps:
Step 1: the polymer polyatomic alcohol that adds 10.8 weight portions in the dry reactor, and after 115 ℃ of vacuum outgas, be cooled to 65 ℃, the mixture that two kinds of isocyanates monomers that add 11.63 weight portions mix with the mass ratio of 1:1 is in reactor, carry out polymerisation at 80 ℃, the reaction time is 3h.
Wherein, to choose relative molecular mass be 1000 polycaprolactone dihydroxylic alcohols to polymer polyatomic alcohol;
The isocyanates monomer is isophorone diisocyanate and toluene di-isocyanate(TDI).
Step 2: in reactor, add the hydrophilic chain extender of 2.36 weight portions at 70 ℃ of reaction 4h again;
Wherein, the hydrophilic chain extender mixture that to be dihydromethyl propionic acid and 1,2-dihydroxy-3-N-morpholinopropanesulfonic acid sodium mix with the mass ratio of 1:2.2.
Step 3: cool to 50 ℃, the functional monomer that adds 4.22 weight portions, reaction 4h, be cooled to 30 ℃, adding organic base conditioned reaction system pH is 8, the mixture that adds deionized water and polymeric seed latex under the high-speed stirred carries out emulsification, and the mass ratio of deionized water and polymeric seed latex is 1:1.5, namely makes the photocuring water-based polyurethane-acrylate emulsion.
Wherein, functional monomer is chosen hydroxypropyl acrylate;
Organic base is chosen triethylamine;
Polymeric seed latex is chosen the polychloroprene latex of solid content 65%;
Light trigger is chosen IRGACURE 819DW;
Defoamer is chosen BYK-037;
Levelling agent is chosen BYK-310.
Step 4: take by weighing the photocuring water-based polyurethane-acrylate emulsion and add light trigger, defoamer, levelling agent, namely make paper UV-curable water-borne oil polish, the quality of light trigger, defoamer, levelling agent accounts for respectively 4%, 0.3% and 0.7% of photocuring water-based polyurethane-acrylate emulsion quality.
Embodiment 6:
The preparation method that paper is used the UV-curable water-borne oil polish, realized by following steps:
Step 1: the polymer polyatomic alcohol that adds 10.8 weight portions in the dry reactor, and after 115 ℃ of vacuum outgas, be cooled to 70 ℃, the mixture that two kinds of isocyanates monomers that add 12.63 weight portions mix with the mass ratio of 1:2 is in reactor, carry out polymerisation at 85 ℃, the reaction time is 3h.
Wherein, to choose relative molecular mass be 1000 polycaprolactone dihydroxylic alcohols to polymer polyatomic alcohol;
The isocyanates monomer is isophorone diisocyanate and hexamethylene diisocyanate.
Step 2: in reactor, add the hydrophilic chain extender of 2.78 weight portions at 70 ℃ of reaction 4h again;
Wherein, the hydrophilic chain extender mixture that to be dimethylolpropionic acid mix with the mass ratio of 1:3.2 with ethylenediamine base ethyl sulfonic acid sodium.
Step 3: cool to 50 ℃, the functional monomer that adds 4.87 weight portions, reaction 4h, be cooled to 35 ℃, adding organic base conditioned reaction system pH is 8, the mixture that adds deionized water and polymeric seed latex under the high-speed stirred carries out emulsification, and the mass ratio of deionized water and polymeric seed latex is 1:1.5, namely makes the photocuring water-based polyurethane-acrylate emulsion.
Wherein, functional monomer is chosen hydroxypropyl acrylate;
Organic base is chosen triethylamine;
Polymeric seed latex is chosen the polychloroprene latex of solid content 70%;
Light trigger is chosen IRGACURE 819DW;
Defoamer is chosen BYK-037;
Levelling agent is chosen BYK-310.
Step 4: take by weighing the photocuring water-based polyurethane-acrylate emulsion and add light trigger, defoamer, levelling agent, namely make paper UV-curable water-borne oil polish, the quality of light trigger, defoamer, levelling agent accounts for respectively 5%, 0.3% and 0.8% of photocuring water-based polyurethane-acrylate emulsion quality.
Embodiment 7:
The preparation method that paper is used the UV-curable water-borne oil polish, realized by following steps:
Step 1: the polymer polyatomic alcohol that adds 10.8 weight portions in the dry reactor, and after 120 ℃ of vacuum outgas, be cooled to 75 ℃, the mixture that two kinds of isocyanates monomers that add 13.63 weight portions mix with the mass ratio of 1:3 is in reactor, carry out polymerisation at 85 ℃, the reaction time is 4h.
Wherein, to choose relative molecular mass be 1000 PCDL to polymer polyatomic alcohol;
The isocyanates monomer is isophorone diisocyanate and methyl diphenylene diisocyanate.
Step 2: in reactor, add the hydrophilic chain extender of 3.20 weight portions at 75 ℃ of reaction 5h again;
Wherein, the hydrophilic chain extender mixture that to be dimethylolpropionic acid mix with the mass ratio of 1:4.2 with BDO-2-sodium sulfonate.
Step 3: cool to 50 ℃, the functional monomer that adds 5.52 weight portions, reaction 5h, be cooled to 40 ℃, adding organic base conditioned reaction system pH is 8.5, the mixture that adds deionized water and polymeric seed latex under the high-speed stirred carries out emulsification, and the mass ratio of deionized water and polymeric seed latex is 1:2, namely makes the photocuring water-based polyurethane-acrylate emulsion.
Wherein, functional monomer is chosen hydroxy propyl methacrylate;
Organic base is chosen triethanolamine;
Polymeric seed latex is chosen the anionic acrylic resin emulsion of solid content 75%;
Light trigger is chosen IRGACURE 819DW;
Defoamer is chosen BYK-038;
Levelling agent is chosen BYK-323.
Step 4: take by weighing the photocuring water-based polyurethane-acrylate emulsion and add light trigger, defoamer, levelling agent, namely make paper UV-curable water-borne oil polish, the quality of light trigger, defoamer, levelling agent accounts for respectively 6%, 0.4% and 0.9% of photocuring water-based polyurethane-acrylate emulsion quality.
Embodiment 8:
The preparation method that paper is used the UV-curable water-borne oil polish, realized by following steps:
Step 1: the polymer polyatomic alcohol that adds 10.8 weight portions in the dry reactor, and after 120 ℃ of vacuum outgas, be cooled to 80 ℃, the mixture that two kinds of isocyanates monomers that add 14.62 weight portions mix with the mass ratio of 1:5 is in reactor, carry out polymerisation at 90 ℃, the reaction time is 5h.
Wherein, to choose relative molecular mass be 1000 poly adipate succinic acid ester dihydroxylic alcohols to polymer polyatomic alcohol;
The isocyanates monomer is hexamethylene diisocyanate and methyl diphenylene diisocyanate.
Step 2: in reactor, add the hydrophilic chain extender of 3.59 weight portions at 80 ℃ of reaction 5h again;
Wherein, the hydrophilic chain extender mixture that to be dimethylolpropionic acid and 1,2-dihydroxy-3-N-morpholinopropanesulfonic acid sodium mix with the mass ratio of 1:5.
Step 3: cool to 50 ℃, the functional monomer that adds 6.17 weight portions, reaction 5h, be cooled to 40 ℃, adding organic base conditioned reaction system pH is 8.5, the mixture that adds deionized water and polymeric seed latex under the high-speed stirred carries out emulsification, and the mass ratio of deionized water and polymeric seed latex is 1:2, namely makes the photocuring water-based polyurethane-acrylate emulsion.
Wherein, functional monomer is chosen pentaerythritol triacrylate;
Organic base is chosen triethanolamine;
Polymeric seed latex is chosen the anionic acrylic resin emulsion of solid content 75%;
Light trigger is chosen IRGACURE 819DW;
Defoamer is chosen BYK-038;
Levelling agent is chosen BYK-323.
Step 4: take by weighing the photocuring water-based polyurethane-acrylate emulsion and add light trigger, defoamer, levelling agent, namely make paper UV-curable water-borne oil polish, the quality of light trigger, defoamer, levelling agent accounts for respectively 7%, 0.5% and 1% of photocuring water-based polyurethane-acrylate emulsion quality.
Performance to UV-curable water-borne oil polish involved in the present invention is tested, and the result is as shown in table 1.The result shows, the present invention has reached the requirement of gloss oil for paper.Wherein hardness of film carries out according to GB6739-86 (pencil method); Cured film adhesive force is for drawing lattice adhesive force.60 ° of glossiness determination methods are adopted in the glossiness test.
The performance test results of table 1 water lustering oil
It is cited that content of the present invention is not limited to embodiment, and the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading specification of the present invention is claim of the present invention and contains.
Claims (10)
1. paper is characterized in that with the preparation method of UV-curable water-borne oil polish:
Realized by following steps:
Step 1: the polymer polyatomic alcohol that adds 10.8 weight portions in the dry reactor, and after 110-120 ℃ of vacuum outgas, be cooled to 50-80 ℃, add a kind of isocyanates monomer of 7.63-14.62 weight portion or two kinds of isocyanates monomers with 1:(1-5) the mixture that mixes of mass ratio in reactor, carry out polymerisation at 70-90 ℃, the reaction time is 1-5h;
Step 2: in reactor, add the hydrophilic chain extender of 0.68-3.59 weight portion at 60-80 ℃ of reaction 2-5h again;
Step 3: cool to 50 ℃, the functional monomer that adds the 1.62-6.17 weight portion, reaction 2-5h, be cooled to 15-40 ℃, adding organic base conditioned reaction system pH is 7-8.5, the mixture that adds deionized water and polymeric seed latex under the high-speed stirred carries out emulsification, and the mass ratio of deionized water and polymeric seed latex is 1:1-2, namely makes the photocuring water-based polyurethane-acrylate emulsion;
Step 4: take by weighing the photocuring water-based polyurethane-acrylate emulsion and add light trigger, defoamer, levelling agent, namely make paper UV-curable water-borne oil polish, the quality of light trigger, defoamer, levelling agent accounts for respectively the 1-7% of photocuring water-based polyurethane-acrylate emulsion quality, 0.1-0.5% and 0.4-1%.
2. paper according to claim 1 is characterized in that with the preparation method of UV-curable water-borne oil polish:
In the step 1, it is 1000 polyether Glycols, polyester diol that described polymer polyatomic alcohol is selected from relative molecular mass;
Polyether Glycols is selected from Polyoxypropylene diol, PTMG dihydroxylic alcohols;
Polyester diol is selected from polycaprolactone dihydroxylic alcohols, PCDL, poly adipate succinic acid ester dihydroxylic alcohols.
3. paper according to claim 1 and 2 is characterized in that with the preparation method of UV-curable water-borne oil polish:
In the step 1, described isocyanates monomer is selected from isophorone diisocyanate, toluene di-isocyanate(TDI), hexamethylene diisocyanate, methyl diphenylene diisocyanate.
4. paper according to claim 3 is characterized in that with the preparation method of UV-curable water-borne oil polish:
In the step 2, described hydrophilic chain extender is selected from a kind of in dihydromethyl propionic acid in the carboxylic acid type, the dimethylolpropionic acid, or be ethylenediamine base ethyl sulfonic acid sodium, 1 in a kind of and sulfonate type in the dihydromethyl propionic acid, dimethylolpropionic acid in the carboxylic acid type, 4-butanediol-2-sodium sulfonate, 1, a kind of with 1:(0.2-5 in 2-dihydroxy-3-N-morpholinopropanesulfonic acid sodium) mixture that mass ratio mixes.
5. paper according to claim 4 is characterized in that with the preparation method of UV-curable water-borne oil polish:
In the step 3, described functional monomer is selected from hydroxy-ethyl acrylate, hydroxyethyl methylacrylate, hydroxypropyl acrylate, hydroxy propyl methacrylate, pentaerythritol triacrylate.
6. paper according to claim 5 is characterized in that with the preparation method of UV-curable water-borne oil polish:
In the step 3, described organic base is selected from trimethylamine, triethylamine, triethanolamine.
7. paper according to claim 6 is characterized in that with the preparation method of UV-curable water-borne oil polish:
In the step 3, described polymeric seed latex is selected from styrene-butadiene latex, carboxylic styrene butadiene latex, polychloroprene latex, the anionic acrylic resin emulsion of solid content 50%-75%.
8. paper according to claim 7 is characterized in that with the preparation method of UV-curable water-borne oil polish:
In the step 3, described light trigger is selected from IRGACURE 2959, IRGACURE 819DW.
9. paper according to claim 8 is characterized in that with the preparation method of UV-curable water-borne oil polish:
In the step 3, described defoamer is selected from BYK-034, BYK-035, BYK-037, BYK-038.
10. paper according to claim 9 is characterized in that with the preparation method of UV-curable water-borne oil polish:
In the step 3, described levelling agent is selected from BYK-300, BYK-306, BYK-310, BYK-323.
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