CN104263214B - The transparent woodenware combination paints of PU and its coating process - Google Patents

The transparent woodenware combination paints of PU and its coating process Download PDF

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Publication number
CN104263214B
CN104263214B CN201410522971.2A CN201410522971A CN104263214B CN 104263214 B CN104263214 B CN 104263214B CN 201410522971 A CN201410522971 A CN 201410522971A CN 104263214 B CN104263214 B CN 104263214B
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China
Prior art keywords
transparent
curing agent
parts
weight proportion
formulated
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CN201410522971.2A
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Chinese (zh)
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CN104263214A (en
Inventor
洪杰
肖理新
周冬义
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三棵树涂料股份有限公司
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D175/00Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04Polyurethanes
    • C09D175/14Polyurethanes having carbon-to-carbon unsaturated bonds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment 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
    • B05D3/12Pretreatment 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 mechanical means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/06Processes, 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 wood
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING 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
    • C09D7/00Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40Additives
    • C09D7/60Additives non-macromolecular
    • C09D7/61Additives non-macromolecular inorganic

Abstract

The present invention relates to a kind of woodenware combination paint and its coating process, more particularly to a kind of transparent woodenware combinations of PU are painted and its coating process, belong to furniture decoration paint field.A kind of transparent woodenware combination paints of PU, it includes PU seal coats, PU transparent primings, colouring agent and PU clear finish;Wherein, the PU seal coats press 1 by PU seal coats host, curing agent I and diluent:0.4‑0.6:0.5 0.8 weight proportion is formulated;The transparent woodenware combination paints of PU of the present invention not only have excellent envelope color, rate of drying is fast, particle diameter is thin, can prevent base material bulging tendons from deforming, and grinability is good, base material can be protected not to be damaged;In addition, not only technique process is few, simple to operate for the coating process of the PU transparent woodenware combination paint of the present invention, it is possible to reduce many manpower and materials so as to reduce painting cost, and using the technique application finished product wood grain it is clear, third dimension is strong, naturally pure and fresh.

Description

The transparent woodenware combination paints of PU and its coating process

Technical field

The present invention relates to a kind of woodenware combination paint and its coating process, the transparent woodenware combination paint of more particularly to a kind of PU and its Coating process, belong to furniture decoration paint field.

Background technology

Water is the dead enemy of base material, and during long-term use, moisture content can change base material unavoidably, cause base Intermittence change occurs for material and bulging tendons deforms, so woodenware priming paint is required to penetrate into base material internal structure, blocks in base material Pore, reduce open hole number in base material, increase closing hole count, suppress the infiltration of water content of coating, infiltration is become uniform, Absorption of the base material to coating can be just set to become uniform.

Because base material is various, have through peroxide bleaching, some processes are artificially colored, and some base materials inherently contain Pigment, tannic acid etc. easily cause the material that paint film changes colour.Tannic acid is wooden as walnut, Manchurian ash or oak etc. Spontaneous water-soluble dye in matter, the material in wooden life-span can be extended.Many times, these tannic acid can move to wood Matter surface, wood surface is changed into tea stain color.Although tannic acid is composition intrinsic in high-quality base material, if directly handle Woodcare paint is administered to the surface of this wood, because tannic acid and pigment effect cause discoloration often to cause coating surface to change colour Or a series of problems, such as making pull-away.

The envelope color of woodenware combination paint of the prior art is poor, and the coating surface of the base material after application dries speed in addition Degree is slow, not wear-resistant, can also distribute strong impulse smell.

Furniture of the prior art, house ornamentation coating process flow:Material processing → material repair color → feeder → polishing → Wipe glaze → primer spray → polishing → face repair color → finish paint etc., not only process is more for existing coating process, complex operation, application Cost is high, moreover, the finished product wood grain after application is unintelligible, without third dimension.

The content of the invention

In order to solve the above-mentioned problems in the prior art, the invention provides a kind of PU transparent woodenware combination paint and its Coating process, the transparent woodenware combination paint of PU of the invention not only has excellent envelope color, rate of drying is fast, particle diameter is thin, energy is anti- Only base material bulging tendons deforms, and grinability is good, base material can be protected not to be damaged;In addition, the transparent woodenware combination paints of the PU of the present invention Coating process not only technique process is few, simple to operate, it is possible to reduce many manpower and materials make so as to reduce painting cost With the finished product wood grain of the technique application is clear, third dimension is strong, naturally pure and fresh.

The technical scheme that the present invention solves above-mentioned technical problem is as follows:

A kind of transparent woodenware combination paints of PU, it includes PU seal coats, PU transparent primings, colouring agent and PU clear finish;

Wherein, the PU seal coats press 1 by PU seal coats host, curing agent I and diluent:0.4-0.6:0.5- 0.8 weight proportion is formulated;

Wherein, the PU seal coats host is formulated by following raw material by following weight proportion:

Propylene glycol methyl ether acetate (PMA) is a kind of advanced solvent, existing ehter bond in its molecule, has carbonyl again, carbonyl is again The structure of ester is formd, while contains alkyl again.The existing nonpolar moiety in same molecule, and polarized part, this two The functional group divided, which both mutually restricts, to be repelled, and each plays its intrinsic effect.Therefore, to apolar substance and polar substances all There is certain solvability, in formula, used along with the n-butyl acetate with compared with low viscosity, especially suitable for large arch dam Measure coating.

The PU transparent primings press 1 by PU transparent primings host, curing agent I and diluent:0.8-1:0.6-0.8 weight Proportioning is formulated;

Wherein, the PU transparent primings host is formulated by following raw material by following weight proportion:

The colouring agent is formulated by following raw material by following weight proportion:

The PU clear finish presses 1 by PU clear finish host, curing agent II and diluent:0.8-1:0.6-0.8 weight Amount proportioning is formulated;

Wherein, the PU clear finish host is formulated by following raw material by following weight proportion:

The curing agent I is mixed by following raw material by following weight proportion:

TDI add-on type curing agent 60-80 parts

It is dehydrated dimethylbenzene 5-15 parts

It is dehydrated ethyl ester 5-15 parts;

The curing agent II is mixed by following raw material by following weight proportion:

TDI add-on type curing agent 57-67 parts

It is dehydrated butyl ester 40-56 parts;

The TDI add-on types curing agent uses the aromatic poly-isocyanate of TDI types;

The diluent is formulated by following raw material by following weight proportion:

The dispersant uses modified polyurethane;

The anti-settling agent uses organobentonite;

The drier uses dibutyl tin laurate;

The defoamer uses modified polyorganosiloxane defoamer.

The aromatic poly-isocyanate of the TDI types is used with toluene di-isocyanate(TDI) (TDI) and trimethylolpropane (TMP) polyurethane curing agent synthesized by metal ion catalysis polymerization.

The PU seal coats host is prepared according to following preparation method:

After alkyd resin 60-80 parts, dimethylbenzene 1-10 parts and propylene glycol methyl ether acetate 1-10 parts are mixed, in 600- It is uniform to mixed liquor to disperse 5-8 minutes under 800 revs/min of speed;Disperse 8-10 minutes under 1000-1200 revs/min of speed It is less than 30 microns to fineness;Then the positive fourth fat 5-25 parts of acetic acid are added;Disperse 5-8 minutes extremely under 600-800 revs/min of speed Mixed liquor is uniform;

The curing agent I is prepared according to following preparation method:

After TDI add-on type curing agent 60-80 parts, dehydration dimethylbenzene 5-15 parts and dehydration ethyl ester 5-15 parts are mixed, It is uniform to mixed liquor to disperse 3-8 minutes under 300-700 revs/min of speed.

The diluent is prepared according to following preparation method:

By toluene 10-35 parts, dimethylbenzene 10-25 parts, ethyl acetate 1-8 parts, the positive fourth fat 10-26 parts of acetic acid,

After sec-Butyl Acetate 1-15 parts and the mixing of propylene glycol methyl ether acetate 1-15 parts, under 300-700 revs/min of speed Scattered 3-8 minutes are uniform to mixed liquor.

The coating process of the transparent woodenware combination paints of PU of the present invention, including following the step of sequentially carrying out:

(1) material inspection sand

Polished with grain direction of the sand paper along the base material for treating application;

(2) PU seal coats are sprayed

The paint amount for adjusting spray gun is 0.35-0.4ml/s, atomization air pressure 150-220mpa, spraying swath 1/2-1/3, is being applied Work temperature is 20-25 DEG C, and first along the grain opening direction sprays substrate surface one time in the environment of construction humidity is 20-25%, Then along the direction vertical with grain direction again by substrate surface spray one time, afterwards temperature be 25 ± 2 DEG C, humidity be 75 ± 4-8 hours to be done in the environment of 5%;

(3) sanding machine is polished

The substrate surface for treating application is polishing to sanding machine entirely without bright spot, then clears up the dust of substrate surface Totally;

(4) PU transparent primings are sprayed

The paint amount for adjusting spray gun is 0.35-0.4ml/s, atomization air pressure 150-220mpa, spraying swath 1/2-1/3, is being applied Work temperature is 20-25 DEG C, and first along the grain opening direction sprays one time in the environment of construction humidity is 20-25%, then edge and wood grain The vertical direction in direction sprays one time, is 25 ± 2 DEG C in temperature, and humidity is 4-8 hours to be done in the environment of 75 ± 5%;

(5) brushing colouring agent

Wood grain of the colouring agent along base material is uniformly smeared, then hangs 3-5 minutes, it is unnecessary uniformly to wipe substrate surface Colouring agent, the 8-24 hours to be done in the environment of 25 ± 2 DEG C of temperature, humidity 75 ± 5%;

(6) PU clear finish is sprayed

The paint amount for adjusting spray gun is 0.35-0.4ml/s, atomization air pressure 150-220mpa, spraying swath 1/2-1/3, is being applied Work temperature is 20-25 DEG C, and first along the grain opening direction sprays one time in the environment of construction humidity is 20-25%, then edge and wood grain The vertical direction in direction sprays one time, is 25 ± 2 DEG C in temperature, and humidity is 4-8 hours to be done in the environment of 75 ± 5%.

The base material is walnut, Manchurian ash or oak.

The mesh number of sand paper described in step (1) is 240-360 mesh;

The sand paper mesh number that sanding machine uses described in step (3) is 320-400 mesh.

The transparent woodenware combination paints of PU and its coating process of the present invention compared with prior art, has the following advantages that:

1st, excellent envelope color:Tannic acid in an in general woodenware combination paint closed substrate, is but unable in closed substrate Water-soluble colored component;Or only water-soluble colored component in closed substrate, the tannic acid being but unable in closed substrate;The present invention Excellent envelope color is not only can be with the tannic acid in closed substrate, can be with water-soluble colored component in closed substrate.

2nd, rate of drying is fast, particle diameter is thin, prevents base material bulging tendons:Drying time of the invention is fast, is that the thin selfing of particle diameter is conjuncted System, makes film forming matter readily permeable into base material, quickly forms one layer of fine and close paint film, effectively prevents walnut, Manchurian ash Or the base material such as oak bulging tendons the problem of.

3rd, grinability is good:The film forming matter of the present invention ensure that paint film has certain hardness and grinability, with the sand of 800 mesh Paper polishing not scab paper, easily polish.

4th, base material is protected not to be damaged:Base material can be effectively protected not by any destruction, and have with substrate surface and surpass Strong cohesive force.

5th, coating process process of the invention is few, simple to operate, it is possible to reduce many manpower and materials, to be dressed up so as to reduce painting This;

6th, apply that the product wood grain that takes on is clear, third dimension is strong, naturally pure and fresh using the coating process of the present invention.

Embodiment

For the ease of it will be appreciated by those skilled in the art that the present invention will be further described below in conjunction with embodiment.

Specific embodiment is as follows:

Embodiment 1:

A kind of transparent woodenware combination paints of PU, it includes PU seal coats, PU transparent primings, colouring agent and PU clear finish;

Wherein, the PU seal coats press 1 by PU seal coats host, curing agent I and diluent:0.5:0.65 weight Proportioning is formulated;

Wherein, the PU seal coats host is formulated by following raw material by following weight proportion:

The PU transparent primings press 1 by PU transparent primings host, curing agent I and diluent:0.9:0.7 weight proportion is matched somebody with somebody System forms;

Wherein, the PU transparent primings host is formulated by following raw material by following weight proportion:

The colouring agent is formulated by following raw material by following weight proportion:

The PU clear finish presses 1 by PU clear finish host, curing agent II and diluent:0.9:0.7 weight proportion It is formulated;

Wherein, the PU clear finish host is formulated by following raw material by following weight proportion:

The curing agent I is mixed by following raw material by following weight proportion:

70 parts of TDI add-on types curing agent

It is dehydrated 10 parts of dimethylbenzene

It is dehydrated 10 parts of ethyl ester;

The curing agent II is mixed by following raw material by following weight proportion:

62 parts of TDI add-on types curing agent

It is dehydrated 48 parts of butyl ester;

The TDI add-on types curing agent uses the aromatic poly-isocyanate of TDI types;

The diluent is formulated by following raw material by following weight proportion:

The aromatic poly-isocyanate of the TDI types is used with toluene di-isocyanate(TDI) (TDI) and trimethylolpropane (TMP) polyurethane curing agent synthesized by metal ion catalysis polymerization.

The PU seal coats host is prepared according to following preparation method:

After 5 parts of 70 parts of alkyd resin, 5 parts of dimethylbenzene and propylene glycol methyl ether acetate mixing, in 700 revs/min of speed Down disperse 7 minutes it is uniform to mixed liquor;Disperse 9 minutes under 1100 revs/min of speed to fineness less than 30 microns;Then add 15 parts of the positive fourth fat of acetic acid;Under 700 revs/min of speed disperse 7 minutes it is uniform to mixed liquor;

The curing agent I is prepared according to following preparation method:

After 10 parts of 70 parts of TDI add-on types curing agent, 10 parts of dimethylbenzene of dehydration and dehydration ethyl ester mixing, at 500 revs/min Under speed disperse 6 minutes it is uniform to mixed liquor.

The diluent is prepared according to following preparation method:

By 22 parts of toluene, 22 parts of dimethylbenzene, 4 parts of ethyl acetate, 18 parts of the positive fourth fat of acetic acid, 8 parts of sec-Butyl Acetate and the third two After the mixing of 8 parts of alcohol methyl ether acetate, disperse under 500 revs/min of speed 6 minutes it is uniform to mixed liquor.

The coating process of the transparent woodenware combination paints of described PU, including following the step of sequentially carrying out:

(1) material inspection sand

Polished using 300# sand paper along the grain direction for the base material for treating application;The base material is walnut;

(2) PU seal coats are sprayed

The paint amount for adjusting spray gun is 0.375ml/s, atomization air pressure 180mpa, spraying swath are 150 °, is 22 in construction temperature DEG C, construction humidity be 22% in the environment of first along the grain opening direction by substrate surface spray one time, then along and grain direction Vertical direction again sprays substrate surface one time, is afterwards 25 DEG C in temperature, humidity is treated dry 6 hours in the environment of being 75%;

(3) sanding machine is polished

Using 360# sand paper, the substrate surface for treating application is polishing to sanding machine entirely without bright spot, then by base material The dust on surface is cleaned out;

(4) PU transparent primings are sprayed

The paint amount for adjusting spray gun is 0.375ml/s, atomization air pressure 180mpa, spraying swath are 150 °, is 22 in construction temperature DEG C, first along the grain opening direction sprays one time in the environment of construction humidity is 22%, then is sprayed along the direction vertical with grain direction Apply one time, be 25 DEG C in temperature, humidity is treated dry 6 hours in the environment of being 75%;

(5) brushing colouring agent

Wood grain of the colouring agent along base material is uniformly smeared, then hung 4 minutes, base material is uniformly wiped using clean cloth The colouring agent of excess surface, treated in the environment of 25 DEG C of temperature, humidity 75% dry 16 hours;

(6) PU clear finish is sprayed

The paint amount for adjusting spray gun is 0.375ml/s, atomization air pressure 180mpa, spraying swath 1/2-1/3, is in construction temperature 22 DEG C, first along the grain opening direction sprays one time in the environment of construction humidity is 22%, then the edge direction vertical with grain direction Spraying one time, it is 25 DEG C in temperature, humidity is treated dry 6 hours in the environment of being 75%.

Embodiment 2:

A kind of transparent woodenware combination paints of PU, it includes PU seal coats, PU transparent primings, colouring agent and PU clear finish;

Wherein, the PU seal coats press 1 by PU seal coats host, curing agent I and diluent:0.4:0.5 weight Proportioning is formulated;

Wherein, the PU seal coats host is formulated by following raw material by following weight proportion:

The PU transparent primings press 1 by PU transparent primings host, curing agent I and diluent:0.8:0.6 weight proportion is matched somebody with somebody System forms;

Wherein, the PU transparent primings host is formulated by following raw material by following weight proportion:

The colouring agent is formulated by following raw material by following weight proportion:

The PU clear finish presses 1 by PU clear finish host, curing agent II and diluent:0.8:0.6 weight proportion It is formulated;

Wherein, the PU clear finish host is formulated by following raw material by following weight proportion:

The curing agent I is mixed by following raw material by following weight proportion:

60 parts of TDI add-on types curing agent

It is dehydrated 5 parts of dimethylbenzene

It is dehydrated 5 parts of ethyl ester;

The curing agent II is mixed by following raw material by following weight proportion:

57 parts of TDI add-on types curing agent

It is dehydrated 40 parts of butyl ester;

The TDI add-on types curing agent uses the aromatic poly-isocyanate of TDI types;

The diluent is formulated by following raw material by following weight proportion:

The aromatic poly-isocyanate of the TDI types is used with toluene di-isocyanate(TDI) (TDI) and trimethylolpropane (TMP) polyurethane curing agent synthesized by metal ion catalysis polymerization.

The PU seal coats host is prepared according to following preparation method:

After 1 part of 60 parts of alkyd resin, 1 part of dimethylbenzene and propylene glycol methyl ether acetate mixing, in 600 revs/min of speed Down disperse 5 minutes it is uniform to mixed liquor;Disperse 8 minutes under 1000 revs/min of speed to fineness less than 30 microns;Then add 5 parts of the positive fourth fat of acetic acid;Under 600 revs/min of speed disperse 5 minutes it is uniform to mixed liquor;

The curing agent I is prepared according to following preparation method:

After 5 parts of 60 parts of TDI add-on types curing agent, 5 parts of dimethylbenzene of dehydration and dehydration ethyl ester mixing, in 300 revs/min of clock rates Lower scattered 3 minutes of degree is uniform to mixed liquor.

The diluent is prepared according to following preparation method:

By 10 parts of toluene, 10 parts of dimethylbenzene, 1 part of ethyl acetate, 10 parts of the positive fourth fat of acetic acid, 1 part of sec-Butyl Acetate and the third two After the mixing of 1 part of alcohol methyl ether acetate, disperse under 300 revs/min of speed 3 minutes it is uniform to mixed liquor.

The coating process of the transparent woodenware combination paints of described PU, including following the step of sequentially carrying out:

(1) material inspection sand

Polished using 240# sand paper along the grain direction for the base material for treating application;The base material is Manchurian ash;

(2) PU seal coats are sprayed

The paint amount for adjusting spray gun is 0.35ml/s, atomization air pressure 150mpa, spraying swath 1/2, is 20 DEG C in construction temperature, First along the grain opening direction sprays substrate surface one time in the environment of humidity of constructing is 20%, then along vertical with grain direction Direction substrate surface is sprayed one time again, be afterwards 23 DEG C in temperature, humidity is treated dry 4 hours in the environment of being 70%;

(3) sanding machine is polished

Using 320# sand paper, the substrate surface for treating application is polishing to sanding machine entirely without bright spot, then by base material The dust on surface is cleaned out;

(4) PU transparent primings are sprayed

The paint amount for adjusting spray gun is 0.35ml/s, atomization air pressure 150mpa, spraying swath 1/2, is 20 DEG C in construction temperature, First along the grain opening direction sprays one time in the environment of humidity of constructing is 20%, then the direction spraying one that edge is vertical with grain direction Time, it is 23 DEG C in temperature, humidity is treated dry 4 hours in the environment of being 70%;

(5) brushing colouring agent

Wood grain of the colouring agent along base material is uniformly smeared, then hung 3 minutes, base material is uniformly wiped using clean cloth The colouring agent of excess surface, treated in the environment of 23 DEG C of temperature, humidity 70% dry 8 hours;

(6) PU clear finish is sprayed

The paint amount for adjusting spray gun is 0.35ml/s, atomization air pressure 150mpa, spraying swath 1/2, is 20 DEG C in construction temperature, First along the grain opening direction sprays one time in the environment of humidity of constructing is 20%, then the direction spraying one that edge is vertical with grain direction Time, it is 23 DEG C in temperature, humidity is treated dry 4 hours in the environment of being 70%.

Embodiment 3:

A kind of transparent woodenware combination paints of PU, it includes PU seal coats, PU transparent primings, colouring agent and PU clear finish;

Wherein, the PU seal coats press 1 by PU seal coats host, curing agent I and diluent:0.6:0.8 weight Proportioning is formulated;

Wherein, the PU seal coats host is formulated by following raw material by following weight proportion:

The PU transparent primings press 1 by PU transparent primings host, curing agent I and diluent:1:0.8 weight proportion is prepared Form;

Wherein, the PU transparent primings host is formulated by following raw material by following weight proportion:

The colouring agent is formulated by following raw material by following weight proportion:

The PU clear finish presses 1 by PU clear finish host, curing agent II and diluent:1:0.8 weight proportion is matched somebody with somebody System forms;

Wherein, the PU clear finish host is formulated by following raw material by following weight proportion:

The curing agent I is mixed by following raw material by following weight proportion:

80 parts of TDI add-on types curing agent

It is dehydrated 15 parts of dimethylbenzene

It is dehydrated 15 parts of ethyl ester;

The curing agent II is mixed by following raw material by following weight proportion:

67 parts of TDI add-on types curing agent

It is dehydrated 56 parts of butyl ester;

The TDI add-on types curing agent uses the aromatic poly-isocyanate of TDI types;

The diluent is formulated by following raw material by following weight proportion:

The aromatic poly-isocyanate of the TDI types is used with toluene di-isocyanate(TDI) (TDI) and trimethylolpropane (TMP) polyurethane curing agent synthesized by metal ion catalysis polymerization.

The PU seal coats host is prepared according to following preparation method:

After 10 parts of 80 parts of alkyd resin, 10 parts of dimethylbenzene and propylene glycol methyl ether acetate mixing, in 800 revs/min of clock rates Lower scattered 8 minutes of degree is uniform to mixed liquor;Disperse 10 minutes under 1200 revs/min of speed to fineness less than 30 microns;Then Add positive 25 parts of the fourth fat of acetic acid;Under 800 revs/min of speed disperse 8 minutes it is uniform to mixed liquor;

The curing agent I is prepared according to following preparation method:

After 15 parts of 80 parts of TDI add-on types curing agent, 15 parts of dimethylbenzene of dehydration and dehydration ethyl ester mixing, at 700 revs/min Under speed disperse 8 minutes it is uniform to mixed liquor.

The diluent is prepared according to following preparation method:

By 35 parts of toluene, 25 parts of dimethylbenzene, 8 parts of ethyl acetate, 26 parts of the positive fourth fat of acetic acid, 15 parts of sec-Butyl Acetate and the third two After the mixing of 15 parts of alcohol methyl ether acetate, disperse under 700 revs/min of speed 8 minutes it is uniform to mixed liquor.

The coating process of the transparent woodenware combination paints of described PU, including following the step of sequentially carrying out:

(1) material inspection sand

Polished using 360# sand paper along the grain direction for the base material for treating application;The base material is oak;

(2) PU seal coats are sprayed

The paint amount for adjusting spray gun is 0.4ml/s, atomization air pressure 220mpa, spraying swath 1/3, is 25 DEG C in construction temperature, First along the grain opening direction sprays substrate surface one time in the environment of humidity of constructing is 25%, then along vertical with grain direction Direction substrate surface is sprayed one time again, be afterwards 27 DEG C in temperature, humidity is treated dry 8 hours in the environment of being 80%;

(3) sanding machine is polished

Using 400# sand paper, the substrate surface for treating application is polishing to sanding machine entirely without bright spot, then by base material The dust on surface is cleaned out;

(4) PU transparent primings are sprayed

The paint amount for adjusting spray gun is 0.4ml/s, atomization air pressure 220mpa, spraying swath 1/3, is 25 DEG C in construction temperature, First along the grain opening direction sprays one time in the environment of humidity of constructing is 25%, then the direction spraying one that edge is vertical with grain direction Time, it is 27 DEG C in temperature, humidity is treated dry 8 hours in the environment of being 80%;

(5) brushing colouring agent

Wood grain of the colouring agent along base material is uniformly smeared, then hung 5 minutes, base material is uniformly wiped using clean cloth The colouring agent of excess surface, treated in the environment of 27 DEG C of temperature, humidity 80% dry 24 hours;

(6) PU clear finish is sprayed

The paint amount for adjusting spray gun is 0.4ml/s, atomization air pressure 220mpa, spraying swath 1/3, is 25 DEG C in construction temperature, First along the grain opening direction sprays one time in the environment of humidity of constructing is 25%, then the direction spraying one that edge is vertical with grain direction Time, it is 27 DEG C in temperature, humidity is treated dry 8 hours in the environment of being 80%.

Embodiment 4:

A kind of transparent woodenware combination paints of PU, it includes PU seal coats, PU transparent primings, colouring agent and PU clear finish;

Wherein, the PU seal coats press 1 by PU seal coats host, curing agent I and diluent:0.4:0.8 weight Proportioning is formulated;

Wherein, the PU seal coats host is formulated by following raw material by following weight proportion:

The PU transparent primings press 1 by PU transparent primings host, curing agent I and diluent:0.8:0.8 weight proportion is matched somebody with somebody System forms;

Wherein, the PU transparent primings host is formulated by following raw material by following weight proportion:

The colouring agent is formulated by following raw material by following weight proportion:

The PU clear finish presses 1 by PU clear finish host, curing agent II and diluent:0.8:0.8 weight proportion It is formulated;

Wherein, the PU clear finish host is formulated by following raw material by following weight proportion:

The curing agent I is mixed by following raw material by following weight proportion:

60 parts of TDI add-on types curing agent

It is dehydrated 15 parts of dimethylbenzene

It is dehydrated 5 parts of ethyl ester;

The curing agent II is mixed by following raw material by following weight proportion:

57 parts of TDI add-on types curing agent

It is dehydrated 56 parts of butyl ester;

The TDI add-on types curing agent uses the aromatic poly-isocyanate of TDI types;

The diluent is formulated by following raw material by following weight proportion:

The aromatic poly-isocyanate of the TDI types is used with toluene di-isocyanate(TDI) (TDI) and trimethylolpropane (TMP) polyurethane curing agent synthesized by metal ion catalysis polymerization.

The PU seal coats host is prepared according to following preparation method:

After 1 part of 60 parts of alkyd resin, 10 parts of dimethylbenzene and propylene glycol methyl ether acetate mixing, in 600 revs/min of speed Down disperse 58 minutes it is uniform to mixed liquor;Disperse 10 minutes under 1000 revs/min of speed to fineness less than 30 microns;Then plus Enter 25 parts of the positive fourth fat of acetic acid;Under 800 revs/min of speed disperse 5 minutes it is uniform to mixed liquor;

The curing agent I is prepared according to following preparation method:

After 5 parts of 60 parts of TDI add-on types curing agent, 15 parts of dimethylbenzene of dehydration and dehydration ethyl ester mixing, at 300 revs/min Under speed disperse 8 minutes it is uniform to mixed liquor.

The diluent is prepared according to following preparation method:

By 10 parts of toluene, 25 parts of dimethylbenzene, 1 part of ethyl acetate, 26 parts of the positive fourth fat of acetic acid, 1 part of sec-Butyl Acetate and the third two After the mixing of 15 parts of alcohol methyl ether acetate, disperse under 300 revs/min of speed 8 minutes it is uniform to mixed liquor.

The coating process of the transparent woodenware combination paints of described PU, including following the step of sequentially carrying out:

(1) material inspection sand

Polished using 240 sand paper along the grain direction for the base material for treating application;The base material is Manchurian ash;

(2) PU seal coats are sprayed

The paint amount for adjusting spray gun is 0.4ml/s, atomization air pressure 150mpa, spraying swath 1/3, is 20 DEG C in construction temperature, First along the grain opening direction sprays substrate surface one time in the environment of humidity of constructing is 25%, then along vertical with grain direction Direction substrate surface is sprayed one time again, be afterwards 23 DEG C in temperature, humidity is treated dry 4 hours in the environment of being 80%;

(3) sanding machine is polished

Using 320# sand paper, the substrate surface for treating application is polishing to sanding machine entirely without bright spot, then by base material The dust on surface is cleaned out;

(4) PU transparent primings are sprayed

The paint amount for adjusting spray gun is 0.4ml/s, atomization air pressure 150mpa, spraying swath 1/3, is 20 DEG C in construction temperature, First along the grain opening direction sprays one time in the environment of humidity of constructing is 25%, then the direction spraying one that edge is vertical with grain direction Time, it is 23 DEG C in temperature, humidity is treated dry 4 hours in the environment of being 80%;

(5) brushing colouring agent

Wood grain of the colouring agent along base material is uniformly smeared, then hung 3 minutes, base material is uniformly wiped using clean cloth The colouring agent of excess surface, treated in the environment of 23 DEG C of temperature, humidity 80% dry 8 hours;

(6) PU clear finish is sprayed

The paint amount for adjusting spray gun is 0.4ml/s, atomization air pressure 150mpa, spraying swath 1/3, is 20 DEG C in construction temperature, First along the grain opening direction sprays one time in the environment of humidity of constructing is 25%, then the direction spraying one that edge is vertical with grain direction Time, it is 23 DEG C in temperature, humidity is treated dry 4 hours in the environment of being 80%.

Embodiment 5:

A kind of transparent woodenware combination paints of PU, it includes PU seal coats, PU transparent primings, colouring agent and PU clear finish;

Wherein, the PU seal coats press 1 by PU seal coats host, curing agent I and diluent:0.6:0.5 weight Proportioning is formulated;

Wherein, the PU seal coats host is formulated by following raw material by following weight proportion:

The PU transparent primings press 1 by PU transparent primings host, curing agent I and diluent:1:0.6 weight proportion is prepared Form;

Wherein, the PU transparent primings host is formulated by following raw material by following weight proportion:

The colouring agent is formulated by following raw material by following weight proportion:

The PU clear finish presses 1 by PU clear finish host, curing agent II and diluent:1:0.6 weight proportion is matched somebody with somebody System forms;

Wherein, the PU clear finish host is formulated by following raw material by following weight proportion:

The curing agent I is mixed by following raw material by following weight proportion:

80 parts of TDI add-on types curing agent

It is dehydrated 5 parts of dimethylbenzene

It is dehydrated 15 parts of ethyl ester;

The curing agent II is mixed by following raw material by following weight proportion:

67 parts of TDI add-on types curing agent

It is dehydrated 40 parts of butyl ester;

The TDI add-on types curing agent uses the aromatic poly-isocyanate of TDI types;

The diluent is formulated by following raw material by following weight proportion:

The aromatic poly-isocyanate of the TDI types is used with toluene di-isocyanate(TDI) (TDI) and trimethylolpropane (TMP) polyurethane curing agent synthesized by metal ion catalysis polymerization.

The PU seal coats host is prepared according to following preparation method:

After 10 parts of 80 parts of alkyd resin, 1 part of dimethylbenzene and propylene glycol methyl ether acetate mixing, in 800 revs/min of speed Down disperse 5 minutes it is uniform to mixed liquor;Disperse 10 minutes under 1000 revs/min of speed to fineness less than 30 microns;Then plus Enter 5 parts of the positive fourth fat of acetic acid;Under 800 revs/min of speed disperse 5 minutes it is uniform to mixed liquor;

The curing agent I is prepared according to following preparation method:

After 15 parts of 80 parts of TDI add-on types curing agent, 5 parts of dimethylbenzene of dehydration and dehydration ethyl ester mixing, at 700 revs/min Under speed disperse 3 minutes it is uniform to mixed liquor.

The diluent is prepared according to following preparation method:

By 35 parts of toluene, 10 parts of dimethylbenzene, 8 parts of ethyl acetate, 10 parts of the positive fourth fat of acetic acid, 15 parts of sec-Butyl Acetate and the third two After the mixing of 1 part of alcohol methyl ether acetate, disperse under 700 revs/min of speed 3 minutes it is uniform to mixed liquor.

The coating process of the transparent woodenware combination paints of described PU, including following the step of sequentially carrying out:

(1) material inspection sand

Polished using 360# sand paper along the grain direction for the base material for treating application;The base material is oak;

(2) PU seal coats are sprayed

The paint amount for adjusting spray gun is 0.35ml/s, atomization air pressure 220mpa, spraying swath 1/2, is 25 DEG C in construction temperature, First along the grain opening direction sprays substrate surface one time in the environment of humidity of constructing is 20%, then along vertical with grain direction Direction substrate surface is sprayed one time again, be afterwards 27 DEG C in temperature, humidity is treated dry 8 hours in the environment of being 70%;

(3) sanding machine is polished

Using 400# sand paper, the substrate surface for treating application is polishing to sanding machine entirely without bright spot, then by base material The dust on surface is cleaned out;

(4) PU transparent primings are sprayed

The paint amount for adjusting spray gun is 0.35ml/s, atomization air pressure 220mpa, spraying swath 1/2, is 25 DEG C in construction temperature, First along the grain opening direction sprays one time in the environment of humidity of constructing is 20%, then the direction spraying one that edge is vertical with grain direction Time, it is 27 DEG C in temperature, humidity is treated dry 8 hours in the environment of being 70%;

(5) brushing colouring agent

Wood grain of the colouring agent along base material is uniformly smeared, then hung 5 minutes, base material is uniformly wiped using clean cloth The colouring agent of excess surface, treated in the environment of 27 DEG C of temperature, humidity 70% dry 24 hours;

(6) PU clear finish is sprayed

The paint amount for adjusting spray gun is 0.35ml/s, atomization air pressure 220mpa, spraying swath 1/2, is 25 DEG C in construction temperature, First along the grain opening direction sprays one time in the environment of humidity of constructing is 20%, then the direction spraying one that edge is vertical with grain direction Time, it is 27 DEG C in temperature, humidity is treated dry 8 hours in the environment of being 70%.

In various embodiments above:

The dispersant uses the EFKA4010 dispersants of EFKA CIBA productions;

The anti-settling agent BENGEL908 that this is produced using extra large name;

The drier T-12 organotin drier that this is produced using extra large name;

The aerosil uses the R972 aerosils of Degussa production;

The defoamer uses the 5800F of DEFOM productions;

The TDI add-on types curing agent uses the L-75 curing agent of Bayer production.

Measured by after coating process application in the transparent woodenware combination paint foundation present invention of the PU described in each embodiment Property indices and technical indicator are as follows shown in each table:

Table one --- the paint film property index after the transparent woodenware combination paint applications of PU

From table one it will be evident that the properties of the present invention reach at or above GB standard.

Table two --- the technical requirements of PU clear finish of the invention

Mian paint component

Curing agent component

Diluent composition

The technical requirements of table two show that VOC (VOC) contents and TDI (free toluene diisocyanate) contain Amount reaches or better than GB18581-2009 standard, meets environment protection health requirement, safe and reliable.

Table three --- each embodiment of PU clear finish of the invention is hard according to GB/T 9756-2009 standard testing films Degree

By the anti-stick dirty PU dumb lights clear finish prepared in size 150mm × 70mm × (4-6) mm without asbestos cement Together with using diameter 120 to be respectively coated with the bar of 80 specifications on plate respectively, coating duration interval is not less than 6h twice, and will prepare Good plate is put in 23 ± 2 DEG C of temperature, and the environment of humidity 50 ± 5% conserves 7.Three parallel laboratory test models are respectively A, B, C, and The plate conserved is done into 2H and 3H pencil hardness tests,

Observation japanning whether there is cracking.Test data is as follows:

The experimental data of table three shows that the hardness of various embodiments of the present invention is more than GB/T 9756-2009 standards, film Hardness is high.

Table four --- each embodiment of PU clear finish of the invention is attached according to GB/T 9756-2009 standard testing films Put forth effort

Using 150mm specifications spreader by the PU clear finish prepared be coated with (together) in size 430mm × 150mm × (4-6) mm without cement asbestos board on, and the plate prepared is put in 23 ± 2 DEG C of temperature, the environment maintenance of humidity 50 ± 5% 24 hours.Cross-hatching tests paint film adhesion, and observation paint film, which whether there is, to come off.Parallel laboratory test A, B, C.Test data is as follows:

The experimental data of table three shows that the adhesive force of various embodiments of the present invention meets GB/T 9756-2009 standards, paint film Do not allow easy to fall off.

Table five --- PU clear finish of the invention and contrast of the general finish paint in terms of anti-hand perspiration and resistance to greasy dirt

As can be seen from Table V, PU clear finish of the present invention has in terms of anti-hand perspiration and resistance to greasy dirt very bright with general finish paint Aobvious advantage, corrosion of the pollutants such as hand perspiration, greasy dirt to paint film can be effectively obstructed, and there is no paint film to damage trace after wiping Mark;With anti-stick dirty ability.

The experimental data of the envelope color of table six --- each embodiment of PU seal coats of the invention

Project Unclosed preceding whiteness Whiteness after closing Embodiment 1 65 88 Embodiment 2 65 90 Embodiment 3 65 89 Embodiment 4 65 90 Embodiment 5 65 90

, not only can be with base from table six it will be evident that the envelope color of each embodiment of the PU seal coats of the present invention is excellent Tannic acid in material, can be with the water-soluble colored component in closed substrate.

Simply technical scheme is explained in detail for above-mentioned embodiment, the present invention not only only office It is limited to above-described embodiment, every any improvement or replacement according to the principle of the invention all should be within protection scope of the present invention.

Claims (9)

  1. A kind of 1. transparent woodenware combination paints of PU, it is characterised in that:It includes PU seal coats, PU transparent primings, colouring agent and PU Clear finish;
    Wherein, the PU seal coats press 1 by PU seal coats host, curing agent I and diluent:0.4-0.6:0.5-0.8's Weight proportion is formulated;
    Wherein, the PU seal coats host is formulated by following raw material by following weight proportion:
    The PU transparent primings press 1 by PU transparent primings host, curing agent I and diluent:0.8-1:0.6-0.8 weight proportion It is formulated;
    Wherein, the PU transparent primings host is formulated by following raw material by following weight proportion:
    The colouring agent is formulated by following raw material by following weight proportion:
    The PU clear finish presses 1 by PU clear finish host, curing agent II and diluent:0.8-1:0.6-0.8 weight is matched somebody with somebody Than being formulated;
    Wherein, the PU clear finish host is formulated by following raw material by following weight proportion:
    The curing agent I is mixed by following raw material by following weight proportion:
    TDI add-on type curing agent 60-80 parts
    It is dehydrated dimethylbenzene 5-15 parts
    It is dehydrated ethyl ester 5-15 parts;
    The curing agent II is mixed by following raw material by following weight proportion:
    TDI add-on type curing agent 57-67 parts
    It is dehydrated butyl ester 40-56 parts;
    The TDI add-on types curing agent uses the aromatic poly-isocyanate of TDI types;
    The diluent is formulated by following raw material by following weight proportion:
  2. 2. the transparent woodenware combination paints of PU according to claim 1, it is characterised in that:
    The dispersant uses modified polyurethane.
  3. 3. the transparent woodenware combination paints of PU according to claim 1, it is characterised in that:
    The anti-settling agent uses organobentonite.
  4. 4. the transparent woodenware combination paints of PU according to claim 1, it is characterised in that:
    The drier uses dibutyl tin laurate.
  5. 5. the transparent woodenware combination paints of PU according to claim 1, it is characterised in that:
    The defoamer uses modified polyorganosiloxane defoamer.
  6. 6. the transparent woodenware combination paints of PU according to claim 1, it is characterised in that:
    The aromatic poly-isocyanate of the TDI types is used with toluene di-isocyanate(TDI) (TDI) and trimethylolpropane (TMP) The polyurethane curing agent synthesized by metal ion catalysis polymerization.
  7. 7. the coating process of the transparent woodenware combination paints of PU according to any one of claim 1-6, it is characterised in that:The painting Dress technique includes following the step of sequentially carrying out:
    (1) material inspection sand
    Polished with grain direction of the sand paper along the base material for treating application;
    (2) PU seal coats are sprayed
    The paint amount for adjusting spray gun is 0.35-0.4ml/s, atomization air pressure 150-220mpa, spraying swath 1/2-1/3, in construction temperature Spend for 20-25 DEG C, construction humidity be 20-25% in the environment of first along the grain opening direction by substrate surface spray one time, then Substrate surface is sprayed one time again along the direction vertical with grain direction, is afterwards 25 ± 2 DEG C in temperature, humidity is 75 ± 5% In the environment of 4-8 hours to be done;
    (3) sanding machine is polished
    The substrate surface for treating application is polishing to sanding machine entirely without bright spot, is then cleared up the dust of substrate surface dry Only;
    (4) PU transparent primings are sprayed
    The paint amount for adjusting spray gun is 0.35-0.4ml/s, atomization air pressure 150-220mpa, spraying swath 1/2-1/3, in construction temperature Spend for 20-25 DEG C, first along the grain opening direction sprays one time in the environment of construction humidity is 20-25%, then edge and grain direction Vertical direction sprays one time, is 25 ± 2 DEG C in temperature, and humidity is 4-8 hours to be done in the environment of 75 ± 5%;
    (5) brushing colouring agent
    Wood grain of the colouring agent along base material is uniformly smeared, then hangs 3-5 minutes, uniformly wipes the unnecessary coloring of substrate surface Agent, the 8-24 hours to be done in the environment of 25 ± 2 DEG C of temperature, humidity 75 ± 5%;
    (6) PU clear finish is sprayed
    The paint amount for adjusting spray gun is 0.35-0.4ml/s, atomization air pressure 150-220mpa, spraying swath 1/2-1/3, in construction temperature Spend for 20-25 DEG C, first along the grain opening direction sprays one time in the environment of construction humidity is 20-25%, then edge and grain direction Vertical direction sprays one time, is 25 ± 2 DEG C in temperature, and humidity is 4-8 hours to be done in the environment of 75 ± 5%.
  8. 8. the coating process of the transparent woodenware combination paints of PU according to claim 7, it is characterised in that:The base material is English walnut Wood, Manchurian ash or oak.
  9. 9. the coating process of the transparent woodenware combination paints of PU according to claim 7, it is characterised in that:
    The mesh number of sand paper described in step (1) is 240-360 mesh;
    The sand paper mesh number that sanding machine uses described in step (3) is 320-400 mesh.
CN201410522971.2A 2014-09-30 2014-09-30 The transparent woodenware combination paints of PU and its coating process CN104263214B (en)

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CN104479526A (en) * 2014-12-09 2015-04-01 三棵树涂料股份有限公司 Fast-drying polyurethane primer used in winter and preparation method of fast-drying polyurethane primer
CN105090193A (en) * 2015-08-12 2015-11-25 天津航天液压装备有限公司 Rubber softening technology for surface of wooden part
CN105482622B (en) * 2015-12-18 2019-02-12 卓达新材料科技集团威海股份有限公司 A kind of coating process of PU seal coat
CN105505151A (en) * 2016-01-22 2016-04-20 卓达新材料科技集团有限公司 High-adhesive-force artificial floorboard and preparation method thereof
CN106362926A (en) * 2016-08-29 2017-02-01 广东花王涂料有限公司 One-component thermoplastic acrylic paint coating technology
CN106366803A (en) * 2016-08-29 2017-02-01 广东花王涂料有限公司 Outdoor woodware coating technology
CN107185789A (en) * 2017-05-24 2017-09-22 鹤山市君子兰涂料有限公司 A kind of coating decoration method of Ka Sila solid woods

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CN101967345A (en) * 2010-10-25 2011-02-09 江苏冠军涂料科技集团有限公司 Novel polyurethane transparent priming paint for protecting woodware
CN102533084A (en) * 2010-12-22 2012-07-04 展辰涂料集团股份有限公司 Poly urethane (PU) polyurethane paint
CN102284410A (en) * 2011-08-09 2011-12-21 东莞大宝化工制品有限公司 Coating process for enabling woodware to present three-dimensional effect
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