CN103333599A - Matt finish paint, preparation method for same and using method of matt finish paint - Google Patents
Matt finish paint, preparation method for same and using method of matt finish paint Download PDFInfo
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- CN103333599A CN103333599A CN2013103138146A CN201310313814A CN103333599A CN 103333599 A CN103333599 A CN 103333599A CN 2013103138146 A CN2013103138146 A CN 2013103138146A CN 201310313814 A CN201310313814 A CN 201310313814A CN 103333599 A CN103333599 A CN 103333599A
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Abstract
The invention provides matt finish paint, a preparation method for the same and a using method of the matt finish paint. The using method comprises the following steps of mixing the matt finish paint, a curing agent and a diluting agent according to a mass ratio of 1:0.7:(0.6-0.7), standing a mixture for 10 to 20 minutes, and spray-coating the mixture, wherein the curing agent contains a toluene diisocynate tripolymer; and the matt finish paint is prepared from an alkyd resin, saturated polyester, nitrocotton liquid, an antifoaming agent, a dispersing agent, a leveling agent, a hand-feel auxiliary and a solvent. Compared with the conventional matt finish paint, the matt finish paint has the advantages that the alkyd resin, the saturated polyester and nitrocotton are used as major film forming substances, and the limited compatibility of the toluene diisocynate tripolymer and the nitrocotton is utilized, so that a paint film has high transparency, and the aim of matting can be fulfilled without adding matting powder; and in addition, the addition of the nitrocotton liquid and the toluene diisocynate tripolymer can be regulated, so that the luster of the paint film can be controlled to be 4 to 8 light-minutes, and the paint film is endowed with higher repainting performance.
Description
Technical field
The invention belongs to the paint technology field, relate in particular to a kind of dull finishing coat and preparation method thereof, using method.
Background technology
Finish paint claims final lacquer again, is a coating of last application in multiple pass coat, and the effect that should have good anti-ambient conditions must have necessary form and aspect and ornamental again, and undercoat is also had provide protection.
In recent years, the coatings industry of China is in the ascendant, the coating ultimate production also leaps to the prostatitis in the world, formed an industrial groups that is correlated with therewith, technological revolution and the development of active promoter tradition field of coating, in the meantime, the high optical coating of high gloss is well received by consumers, and is unifying coating market in considerable time with its lovely luster, advantage such as bright.But along with improving constantly of people's living standard, on the one hand the human consumer has felt reflective more serious after the light japanning film forming of high gloss, and is harmful to people's eyes; Human consumer's aesthetic standards are more and more tended to leisure, fashion and personalization on the other hand, so the demand of dull finishing coat increases gradually.
Dull finishing coat is to compare the lacquer that gloss decreases with light top coat top coat, the lacquer that can be divided into three minutes to the eight minutes inferior various inferior degree that do not wait, it adds the mediation of an amount of matting agent and subsidiary material and forms based on varnish, because the consumption difference of matting agent, gloss of film degree are also different.
Wherein the dual-component polyurethane dull finishing coat is by hydroxy-containing component with contain isocyanate component and thinner is formed.The dual-component polyurethane dull finishing coat is with its superior normal temperature film forming properties, high rigidity, wear resistance, and chemical-resistant, and excellent gloss and fullness ratio, good workability is widely used in woodwork coating.But existing dual-component polyurethane dull finishing coat need add flatting silica usually to realize the delustring of paint film, causes the transparency of finish paint and recoatability limited, brings certain limitation for the performance of furniture application and construction.
Publication number is that the Chinese patent of CN101381581A discloses a kind of polyurethane transparent matt top coat top coat and preparation method thereof and using method, this dull finishing coat is by the Synolac of 40～60 weight parts, the elastic resin of 10～40 weight parts, 2.0 the flatting silica of～5.0 weight parts, 0.3 the dispersion agent of～1.0 weight parts, 0.5 the wax powder of～2.0 weight parts, 3.0 the glass powder of～10 weight parts, 0.2 the flow agent of～0.5 weight part, 0.2 the anti-settling agent of～0.5 weight part, 1.0 20% anti scuffing resin of～5.0 weight parts and the solvent of 13.6 weight parts are made, this dull finishing coat anti scuffing is hot in nature good, the hardness height, the paint film feel is smooth, basic non-whitening, its transparency improves to some extent with recoatability, but the use of flatting silica also can influence to some extent to transparency and recoatability.
Publication number is that the Chinese patent of CN101333410A discloses a kind of high-transparency double-component polyurethane transparent matt top coat top coat and preparation method thereof, this finish paint comprises 60～70% filmogens, 3～4% flatting silicas, 0.1～0.3% anti-settling agent, 0.1～0.3% flow agent and 25～36% solvents, and this dull finishing coat has added flatting silica equally.
Summary of the invention
In view of this, the technical problem to be solved in the present invention is to provide a kind of dull finishing coat and preparation method thereof, using method, and this dull finishing coat does not contain any flatting silica.
The invention provides a kind of dull finishing coat, made by following component:
Synolac 25～35 weight parts;
Saturated polyester 25～35 weight parts;
Nitro-cotton liquid 20～35 weight parts;
Defoamer 0.1～0.5 weight part;
Dispersion agent 0.1～0.5 weight part;
Flow agent 0.1～0.5 weight part;
Feel auxiliary agent 0.1～0.5 weight part;
Solvent 5～10 weight parts.
Preferably, described Synolac is that medium-oil-length, hydroxyl value are that 130 ± 10mg KOH/g, solid content are 60～70% fatty acid modified resin.
Preferably, described saturated polyester is that hydroxyl value is that 155 ± 10mg KOH/g, solid content are 70～80% fatty acid modified side chain saturated polyester resin.
Preferably, described nitro-cotton liquid comprises:
Nitro-cotton 20～40 weight parts;
Anti-yellow auxiliary agent 0.1～0.3 weight part of nitro-cotton;
First organic solvent, 50～65 weight parts.
Preferably, described nitro-cotton is for using 1/2 second wetting nitro-cotton of ethanol.
Preferably, described solvent is selected from one or more in n-butyl acetate, cyclohexanone and the 1-Methoxy-2-propyl acetate.
The present invention also provides a kind of preparation method of dull finishing coat, comprising:
The Synolac of 25～35 weight parts, the saturated polyester of 25～35 weight parts are mixed with the nitro-cotton liquid of 20～35 weight parts, rotating speed with 400～800rpm stirs, the defoamer, the dispersion agent of 0.1～0.5 weight part, the flow agent of 0.1～0.5 weight part and the feel auxiliary agent of 0.1～0.5 weight part that add 0.1～0.5 weight part, rotating speed with 800～1200rpm is dispersed to fineness≤20 μ m, the solvent that adds 5～10 weight parts then, dispersed with stirring obtains dull finishing coat.
The present invention also provides a kind of using method of dull finishing coat, comprising:
With dull finishing coat, solidifying agent and thinner according to mass ratio 1:0.7:(0.6～0.7) mix, leave standstill 10～20min after, spray; The crosslinked density of described solidifying agent is-NCO/-OH=1.1～1.2, and comprises toluene diisocyanate trimer; Described dull finishing coat is made by following component:
Synolac 25～35 weight parts;
Saturated polyester 25～35 weight parts;
Nitro-cotton liquid 20～35 weight parts;
Defoamer 0.1～0.5 weight part;
Dispersion agent 0.1～0.5 weight part;
Flow agent 0.1～0.5 weight part;
Feel auxiliary agent 0.1～0.5 weight part;
Solvent 5～10 weight parts.
Preferably, described solidifying agent comprises:
TDI/TMP 35～45 weight parts;
Toluene diisocyanate trimer 25～45 weight parts;
Second organic solvent, 10～40 weight parts.
Preferably, described thinner comprises:
N-butyl acetate 30～40 weight parts;
2-butyl acetate 30～40 weight parts;
Pimelinketone 5～15 weight parts;
1-Methoxy-2-propyl acetate 10～20 weight parts.
The invention provides a kind of dull finishing coat and preparation method thereof, using method, with dull finishing coat, solidifying agent and thinner according to mass ratio 1:0.7:(0.6～0.7) mix, leave standstill 10～20min after, spray; The crosslinked density of described solidifying agent is-NCO/-OH=1.1～1.2, and comprises toluene diisocyanate trimer; Described dull finishing coat is made by the Synolac of 25～35 weight parts, the saturated polyester of 25～35 weight parts, the nitro-cotton liquid of 20～35 weight parts, the defoamer of 0.1～0.5 weight part, the dispersion agent of 0.1～0.5 weight part, the flow agent of 0.1～0.5 weight part, the feel auxiliary agent of 0.1～0.5 weight part and the solvent of 5～10 weight parts.Compare with existing dull finishing coat, the present invention is main film forming substance with Synolac, saturated polyester and nitro-cotton, utilize the limited compatibility of toluene diisocyanate trimer and nitro-cotton, paint film is being had on the basis of high-clarity, need not add flatting silica to reach the delustring purpose; Simultaneously, can also be by adjusting the addition of nitro-cotton liquid and toluene diisocyanate trimer, with the gloss control of paint film at 4 light branch to 8 light branches, make it have recoat performance preferably.
Embodiment
The invention provides a kind of dull finishing coat, made by following component:
Synolac 25～35 weight parts;
Saturated polyester 25～35 weight parts;
Nitro-cotton liquid 20～35 weight parts;
Defoamer 0.1～0.5 weight part;
Dispersion agent 0.1～0.5 weight part;
Flow agent 0.1～0.5 weight part;
Feel auxiliary agent 0.1～0.5 weight part;
Solvent 5～10 weight parts.
Wherein, described Synolac is preferably 30～35 weight parts, more preferably 35 weight parts; Described Synolac is preferably medium-oil-length, hydroxyl value is that 130 ± 10mg KOH/g, solid content are 60～70% fatty acid modified resin, more preferably medium-oil-length, hydroxyl value are that 130 ± 10mg KOH/g, solid content are 70% fatty acid modified resin, be preferably medium-oil-length again, hydroxyl value is that 130 ± 10mg KOH/g, solid content are 70% soya fatty acid modified resin, for reducing aromatic solvent to the harm of human body and environment, Synolac described in the present invention is preferably the Synolac of no aromatic hydrocarbons.
Described saturated polyester is preferably 28～32 weight parts, more preferably 30 weight parts; It is that 155 ± 10mg KOH/g, solid content are 70～80% fatty acid modified side chain saturated polyester resin that saturated polyester described in the present invention is preferably hydroxyl value, more preferably hydroxyl value is that 155 ± 10mg KOH/g, solid content are 80% fatty acid modified side chain saturated polyester resin, for reducing existing transparent matt top coat top coat aromatic hydrocarbons to the harm of human body and environment, described saturated polyester also is preferably the saturated polyester of no aromatic hydrocarbons.
Described nitro-cotton liquid is preferably 20～30 weight parts, more preferably 24～26 weight parts; Nitro-cotton liquid used among the present invention preferably includes: first organic solvent of the anti-yellow auxiliary agent of the nitro-cotton of the nitro-cotton of 20～40 weight parts, 0.1～0.3 weight part and 50～65 weight parts; Wherein, nitro-cotton is preferably 25～35 weight parts, 30 weight parts more preferably, and the kind of this nitro-cotton is preferably with 1/2 second wetting nitro-cotton of ethanol, more preferably 1/2 second wetting nitro-cotton of 20%～50% ethanol is preferably 1/2 second wetting nitro-cotton of 30% ethanol again; The anti-yellow auxiliary agent of described nitro-cotton is preferably 0.2 weight part, and it is that the anti-yellow auxiliary agent of nitro-cotton well known to those skilled in the art gets final product, and there is no special restriction; Described first organic solvent is preferably 55～60 weight parts, and 59.8 weight parts more preferably, this organic solvent are that the organic solvent for the preparation of nitro-cotton liquid well known to those skilled in the art gets final product, and there is no special restriction, are preferably n-butyl acetate among the present invention.
Described defoamer is preferably 0.2～0.4 weight part, more preferably 0.3 weight part; Used defoamer is preferably the acrylate defoamer among the present invention, more preferably the acrylate defoamer of aromatic free solvent.
Described dispersion agent is preferably 0.2～0.4 weight part, more preferably 0.3 weight part; This dispersion agent is preferably the ethylene-vinyl acetate copolymer wax dispersion.
Described flow agent is preferably 0.2～0.4 weight part, more preferably 0.3 weight part; Used flow agent is preferably poly-methyl alkyl-methyl aralkyl siloxanes among the present invention.
Described feel auxiliary agent is preferably 0.3～0.5 weight part, more preferably 0.5 weight part; Used feel auxiliary agent is preferably fluorinated polyethylene wax among the present invention, and it is the white particles powder.
Described solvent is preferably 6～9 weight parts, more preferably 8.6 weight parts; It is that solvent well known to those skilled in the art gets final product, there is no special restriction, be preferably no aromatic solvent, one or more in n-butyl acetate, pimelinketone and the 1-Methoxy-2-propyl acetate more preferably, be preferably the n-butyl acetate of 30～50 weight parts, the pimelinketone of 30～50 weight parts and the 1-Methoxy-2-propyl acetate of 10～30 weight parts again, most preferably be the n-butyl acetate of 40 weight parts, the cyclohexanone of 40 weight parts and the 1-Methoxy-2-propyl acetate of 20 weight parts.
The present invention also provides the preparation method of above-mentioned dull finishing coat, comprise: the Synolac of 25～35 weight parts, the saturated polyester of 25～35 weight parts are mixed with the nitro-cotton liquid of 20～35 weight parts, rotating speed with 400～800rpm stirs, the defoamer, the dispersion agent of 0.1～0.5 weight part, the flow agent of 0.1～0.5 weight part and the feel auxiliary agent of 0.1～0.5 weight part that add 0.1～0.5 weight part, rotating speed with 800～1200rpm is dispersed to fineness≤20 μ m, the solvent that adds 5～10 weight parts then, dispersed with stirring obtains dull finishing coat.
The present invention does not have special restriction to the source of all raw materials, gets final product for commercially available.Wherein, described Synolac, saturated polyester, nitro-cotton liquid, defoamer, dispersion agent, flow agent, feel auxiliary agent and solvent are all same as above, do not repeat them here.
Synolac, saturated polyester are mixed with nitro-cotton liquid, with the rotating speed stirring of 400～800rpm, be preferably the rotating speed dispersed with stirring of 500～700rpm, wherein the order of Hun Heing is preferably and adds saturated polyester and nitro-cotton liquid successively in Synolac.Nitro-cotton liquid preferably is prepared in accordance with the following methods among the present invention: the nitro-cotton of 20～40 weight parts is added in first organic solvent, after complete wetting is treated in immersion, the anti-yellow auxiliary agent of nitro-cotton that under stirring condition, adds 0.1～0.3 weight part, continue dispersed with stirring, be preferably 600～900rpm dispersed with stirring, to dissolving fully, the time of dispersed with stirring is preferably 20～30min.Wherein, the anti-yellow auxiliary agent of described nitro-cotton, first organic solvent and nitro-cotton is all same as above, does not repeat them here.
After Synolac, saturated polyester and the nitro-cotton liquid dispersed with stirring, be preferably dispersed with stirring 5～8min after, under the situation of stirring at low speed, add defoamer, dispersion agent, flow agent and feel auxiliary agent, the addition sequence of four kinds of materials does not have special restriction.After the adding, the rotating speed with 800～1200rpm is preferably 900～1100rpm, is dispersed to fineness≤20 μ m, and the time of dispersion is preferably 8～12min, and more preferably 10min adds solvent then.
After adding solvent, dispersed with stirring, the rotating speed of dispersed with stirring is preferably 500～700rpm, 550～650rom more preferably, the time of dispersed with stirring is preferably 5～8min, to evenly, can obtain dull finishing coat after preferred the filtration.
The present invention also provides the using method of above-mentioned dull finishing coat, comprising: with dull finishing coat, solidifying agent and thinner according to mass ratio 1:0.7:(0.6～0.7) mix, leave standstill 10～20min after, spray; The crosslinked density of described solidifying agent is-NCO/-OH=1.1～1.2, and comprises toluene diisocyanate trimer; Described dull finishing coat is made by following component:
Synolac 25～35 weight parts;
Saturated polyester 25～35 weight parts;
Nitro-cotton liquid 20～35 weight parts;
Defoamer 0.1～0.5 weight part;
Dispersion agent 0.1～0.5 weight part;
Flow agent 0.1～0.5 weight part;
Feel auxiliary agent 0.1～0.5 weight part;
Solvent 5～10 weight parts.
Wherein, described Synolac, saturated polyester, nitro-cotton liquid, defoamer, dispersion agent, flow agent, feel auxiliary agent and solvent are all same as above, do not repeat them here.
Described solidifying agent preferably includes: second organic solvent of the TDI/TMP affixture of 35～45 weight parts, the toluene diisocyanate trimer of 25～45 weight parts (TDI tripolymer) and 10～40 weight parts.Described second organic solvent is that organic solvent well known to those skilled in the art gets final product, and there is no special restriction, is preferably n-butyl acetate among the present invention.
The crosslinked density of solidifying agent is-NCO/-OH=1.1～1.2 that the high slightly paint film that makes of-NCO content keeps intrinsic mechanical property under super-humid conditions, make it have good scratch resistance; The TDI tripolymer that wherein contains has rate of drying and hardness faster, can be paint film enough hardness is provided; The TDI/TMP affixture has good weathering resistance, chemical resistant properties and mechanical property, can be paint film good hardness and toughness is provided.
Described thinner preferably includes: the 1-Methoxy-2-propyl acetate of the 2-butyl acetate of the n-butyl acetate of 30～40 weight parts, 30～40 weight parts, the pimelinketone of 5～15 weight parts and 10～20 weight parts; More preferably comprise the n-butyl acetate of 35 weight parts, the 2-butyl acetate of 35 weight parts, the pimelinketone of 10 weight parts and the 1-Methoxy-2-propyl acetate of 15 weight parts.
The mass ratio of dull finishing coat, solidifying agent and thinner is preferably 1:0.7:0.6, after the three is proportionally mixed, preferably filters, and after more preferably 400～600 orders filter, leaves standstill 10～20min, more preferably behind 14～18min, sprays.
The present invention is main film forming substance with Synolac, saturated polyester and nitro-cotton, utilizes the limited compatibility of toluene diisocyanate trimer and nitro-cotton, and paint film is being had on the basis of high-clarity, need not add flatting silica to reach the delustring purpose; Simultaneously, can also be by adjusting the addition of nitro-cotton liquid and toluene diisocyanate trimer, with the gloss control of paint film at 4 light branch to 8 light branches, make it have recoat performance preferably; And the preferred all aromatic free solvents of used raw material among the present invention have been avoided the harm that human body and environment are brought to a great extent.
In order to further specify the present invention, below in conjunction with embodiment a kind of dull finishing coat provided by the invention and preparation method thereof, using method are described in detail.
Used reagent is commercially available in following examples, and wherein Synolac is Changxing 3106-B-70; Saturated polyester is Bayer RD-181BA; Nitro-cotton is 1/2 second wetting nitro-cotton of 30% ethanol; Defoamer is acrylate defoamer BYK-052; Flow agent is poly-methyl alkyl-methyl aralkyl siloxanes BYK-323; Dispersion agent is ethylene-vinyl acetate copolymer wax dispersion BYK CERAFAK-110; The feel auxiliary agent is fluorinated polyethylene wax SHAMROCK FS421T; The TDI/TMP affixture is Bayer TDI/TMP affixture L-75; The TDI tripolymer is Bayer TDI/ tripolymer IL1351; Solvent is the mixed solution of 40 weight part n-butyl acetates, 40 weight part pimelinketone and 20 weight part 1-Methoxy-2-propyl acetates; Thinner is the mixed solution of the 1-Methoxy-2-propyl acetate of the pimelinketone of 2-butyl acetate, 10 weight parts of 35 weight part n-butyl acetates, 35 weight parts and 15 weight parts.
Embodiment 1
1.1 in 59.8 weight part n-butyl acetates, add 30 weight part nitro-cottons, after complete wetting is treated in immersion, add the anti-yellow auxiliary agent of 0.2 weight part nitro-cotton under the stirring at low speed, 800rpm disperses 30min to dissolving fully, obtains nitro-cotton liquid.
1.2 in 35 weight part Synolac, add the nitro-cotton liquid that obtains in 30 weight part saturated polyesters and 25 weight parts 1.1 successively, 600rpm dispersed with stirring 6min, add 0.3 weight part defoamer, 0.3 weight part dispersion agent, 0.3 weight part flow agent and 0.5 weight part feel auxiliary agent again, 1000rpm high speed dispersion 10min, to fineness≤20 μ m, add 8.6 parts by weight solvent then, the rotating speed of 600rpm disperses 7min to even, filter, can obtain dull finishing coat.
1.3 the dull finishing coat, the solidifying agent that obtain in 1.2 are mixed according to mass ratio 1:0.7:0.6 with thinner, carry out spraying application behind the 500 order filtering and standing 15min, behind the dry 24h, can obtain paint film, its gloss is 5 light splitting.
According to HG/T2454-2006 the paint film that obtains in 1.3 is tested, obtained its hardness 〉=3H, wear resistance/g(750/500r)≤0.03, snappiness is 1mm.
The paint film that obtains in 1.3 is estimated, and its transparency is good, and the recoat transparency is good, and is acomia dim.
Embodiment 2
2.1 in 30 weight part Synolac, add the nitro-cotton liquid that obtains in 30 weight part saturated polyesters and 30 weight parts 1.1 successively, 600rpm dispersed with stirring 6min, add 0.3 weight part defoamer, 0.3 weight part dispersion agent, 0.3 weight part flow agent and 0.5 weight part feel auxiliary agent again, 1000rpm high speed dispersion 10min, to fineness≤20 μ m, add 8.6 parts by weight solvent then, the rotating speed of 600rpm disperses 7min to even, filter, can obtain dull finishing coat.
2.2 the dull finishing coat, the solidifying agent that obtain in 2.1 are mixed according to mass ratio 1:0.7:0.6 with thinner, carry out spraying application behind the 500 order filtering and standing 15min, behind the dry 24h, can obtain paint film, its gloss is 5 light splitting.
Embodiment 3
3.1 in 25 weight part Synolac, add the nitro-cotton liquid that obtains in 30 weight part saturated polyesters and 35 weight parts 1.1 successively, 600rpm dispersed with stirring 6min, add 0.3 weight part defoamer, 0.3 weight part dispersion agent, 0.3 weight part flow agent and 0.5 weight part feel auxiliary agent again, 1000rpm high speed dispersion 10min, to fineness≤20 μ m, add 8.6 parts by weight solvent then, the rotating speed of 600rpm disperses 7min to even, filter, can obtain dull finishing coat.
3.2 the dull finishing coat, the solidifying agent that obtain in 3.1 are mixed according to mass ratio 1:0.7:0.6 with thinner, carry out spraying application behind the 500 order filtering and standing 15min, behind the dry 24h, can obtain paint film, its gloss is 5 light splitting.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a dull finishing coat is characterized in that, is made by following component:
Synolac 25～35 weight parts;
Saturated polyester 25～35 weight parts;
Nitro-cotton liquid 20～35 weight parts;
Defoamer 0.1～0.5 weight part;
Dispersion agent 0.1～0.5 weight part;
Flow agent 0.1～0.5 weight part;
Feel auxiliary agent 0.1～0.5 weight part;
Solvent 5～10 weight parts.
2. dull finishing coat according to claim 1 is characterized in that, described Synolac is that medium-oil-length, hydroxyl value are that 130 ± 10mg KOH/g, solid content are 60～70% fatty acid modified resin.
3. dull finishing coat according to claim 1 is characterized in that, described saturated polyester is that hydroxyl value is that 155 ± 10mg KOH/g, solid content are 70～80% fatty acid modified side chain saturated polyester resin.
4. dull finishing coat according to claim 1 is characterized in that, described nitro-cotton liquid comprises:
Nitro-cotton 20～40 weight parts;
Anti-yellow auxiliary agent 0.1～0.3 weight part of nitro-cotton;
First organic solvent, 50～65 weight parts.
5. dull finishing coat according to claim 4 is characterized in that, described nitro-cotton is for using 1/2 second wetting nitro-cotton of ethanol.
6. dull finishing coat according to claim 1 is characterized in that, described solvent is selected from one or more in n-butyl acetate, cyclohexanone and the 1-Methoxy-2-propyl acetate.
7. the preparation method of a dull finishing coat is characterized in that, comprising:
The Synolac of 25～35 weight parts, the saturated polyester of 25～35 weight parts are mixed with the nitro-cotton liquid of 20～35 weight parts, rotating speed with 400～800rpm stirs, the defoamer, the dispersion agent of 0.1～0.5 weight part, the flow agent of 0.1～0.5 weight part and the feel auxiliary agent of 0.1～0.5 weight part that add 0.1～0.5 weight part, rotating speed with 800～1200rpm is dispersed to fineness≤20 μ m, the solvent that adds 5～10 weight parts then, dispersed with stirring obtains dull finishing coat.
8. the using method of a dull finishing coat is characterized in that, comprising:
With dull finishing coat, solidifying agent and thinner according to mass ratio 1:0.7:(0.6～0.7) mix, leave standstill 10～20min after, spray; The crosslinked density of described solidifying agent is-NCO/-OH=1.1～1.2, and comprises toluene diisocyanate trimer; Described dull finishing coat is made by following component:
Synolac 25～35 weight parts;
Saturated polyester 25～35 weight parts;
Nitro-cotton liquid 20～35 weight parts;
Defoamer 0.1～0.5 weight part;
Dispersion agent 0.1～0.5 weight part;
Flow agent 0.1～0.5 weight part;
Feel auxiliary agent 0.1～0.5 weight part;
Solvent 5～10 weight parts.
9. using method according to claim 8 is characterized in that, described solidifying agent comprises:
TDI/TMP 35～45 weight parts;
Toluene diisocyanate trimer 25～45 weight parts;
Second organic solvent, 10～40 weight parts.
10. using method according to claim 9 is characterized in that, described thinner comprises:
N-butyl acetate 30～40 weight parts;
2-butyl acetate 30～40 weight parts;
Pimelinketone 5～15 weight parts;
1-Methoxy-2-propyl acetate 10～20 weight parts.
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| CN104893534A (en) * | 2015-05-26 | 2015-09-09 | 深圳市广田环保涂料有限公司 | Polyurethane matte clear finishing coat as well as preparation method and using method thereof |
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| CN112442316A (en) * | 2019-08-27 | 2021-03-05 | 立邦涂料（中国）有限公司 | Transparent solvent type low-construction VOC (volatile organic compound) polyurethane composition for woodware surface and preparation method thereof |
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| CN104893534A (en) * | 2015-05-26 | 2015-09-09 | 深圳市广田环保涂料有限公司 | Polyurethane matte clear finishing coat as well as preparation method and using method thereof |
| CN106928822A (en) * | 2015-12-29 | 2017-07-07 | 立邦涂料（中国）有限公司 | Aobvious line paint of a kind of woodenware and its preparation method and application |
| CN106928822B (en) * | 2015-12-29 | 2019-12-10 | 立邦涂料（中国）有限公司 | Woodware grain-developing paint and preparation method and application thereof |
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| CN112442316B (en) * | 2019-08-27 | 2022-02-01 | 立邦涂料（中国）有限公司 | Transparent solvent type low-construction VOC (volatile organic compound) polyurethane composition for woodware surface and preparation method thereof |
| CN116875178A (en) * | 2023-07-20 | 2023-10-13 | 江阴市恒峰塑玻有限公司 | Skin-feel antibacterial glass facing paint |
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Effective date of registration: 20190123 Address after: 516223 Xinlian Village Industrial Zone, Xinwei Town, Huiyang District, Huizhou City, Guangdong Province Patentee after: Hengchang Paint (Huiyang) Co., Ltd. Address before: 610000 Bauhinia lacquer (Chengdu) Co., Ltd. Huamei Village, Dafeng Town, Chengdu City, Sichuan Province Patentee before: Bauhinia Paints (Chengdu) Co., Ltd. |