CN112961560B - High-performance benzene-free cold oil spraying paint and application thereof - Google Patents
High-performance benzene-free cold oil spraying paint and application thereof Download PDFInfo
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- CN112961560B CN112961560B CN202110383216.0A CN202110383216A CN112961560B CN 112961560 B CN112961560 B CN 112961560B CN 202110383216 A CN202110383216 A CN 202110383216A CN 112961560 B CN112961560 B CN 112961560B
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/54—No clear coat specified
- B05D7/544—No clear coat specified the first layer is let to dry at least partially before applying the second layer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/002—Priming paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/20—Diluents or solvents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2451/00—Type of carrier, type of coating (Multilayers)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2502/00—Acrylic polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention provides a high-performance benzene-free cold oil spraying paint, which comprises a primer and a finish; the primer comprises the following components in percentage by mass: 40-80% of acrylic resin; 5 to 25 percent of amino resin; 1 to 5 percent of epoxy resin; 1 to 5 percent of isocyanate; 1 to 3 percent of silane coupling agent; 1 to 15 percent of ethyl acetate; the finish paint comprises the following components in percentage by mass: 40-80% of acrylic resin; 5 to 25 percent of amino resin; 1 to 15 percent of ethyl acetate; 1 to 15 percent of dimethyl carbonate; 1% -15% of ethanol; 1 to 15 percent of ether; 0.3 to 1 percent of flatting agent; 0.3 to 1 percent of wetting agent. The invention adjusts the formula of the finish paint, adds a primer process with a new formula at the same time, and is used for combining the adjusted benzene-free finish paint formula, thereby achieving the purposes of strong binding force and environmental protection and no pollution of the paint after the pull head is painted.
Description
Technical Field
The invention relates to the technical field of paint, in particular to high-performance benzene-free cold oil spraying paint and application thereof.
Background
The pull head is an important component of the clothing accessories, and for the uniformity of the overall appearance of the clothing, the shape and the appearance of the accessories on the clothing are designed and produced correspondingly according to the current popular trend. For presenting rich and varied pull head in order to satisfy market needs, present pull head mainly uses the pull head of spraying paint as leading, therefore the pull head of spraying paint has great market demand.
At present, most of the paint spraying processes of the pull head adopt a cold spraying process, spraying is carried out at normal temperature, and then air drying and baking are carried out for 8-10 times. The raw materials or additives of the paint contain a certain amount of benzene homologues such as benzene and dimethylbenzene, and the benzene homologues can be disorderly volatilized into the air in the baking process, so that the paint has strong harm to blood, nerve and reproductive systems of staff. The staff is required to wear the gas mask for protection during operation, and related occupational health problems are easily caused after long-term contact.
In addition, the existing cold spraying process has insufficient overall stability of the paint.
Disclosure of Invention
In view of the above, the technical problem to be solved by the invention is to provide a high-performance benzene-free cold oil spraying paint and application thereof, wherein benzene solvents are not needed, the paint bonding stability is strong, and the paint is less harmful to human bodies.
In order to achieve the aim, the invention provides a high-performance benzene-free cold oil spraying paint which comprises a primer and a finish;
the primer comprises the following components in percentage by mass:
the finish paint comprises the following components in percentage by mass:
preferably, the primer consists of the following components in percentage by mass:
preferably, the acrylic resin is a thermosetting acrylic resin capable of reaching AC 1175.
The acrylic resin may be contained in an amount of 70% or 75% by mass, or in a range having the above value as an upper limit or a lower limit.
Preferably, the amino resin is cyanot CYMEL325 methyl etherified high imino melamine resin.
The amino resin may be contained in an amount of 5% or 10% by mass, or in a range where the above value is an upper limit value or a lower limit value.
Preferably, the epoxy resin is south Asia epoxy resin NPSN-301x 75.
The mass content of the epoxy resin may be 3%, 4%, 5%, or 6%, or may be within a range in which the above value is an upper limit value or a lower limit value. Particularly preferably 5%.
Preferably, the isocyanate is german bayer 3175.
The isocyanate content may be 1% or 5% by mass or may be in the range where the above value is an upper limit value or a lower limit value.
Preferably, the silane coupling agent is a coupling agent kh550 or a coupling agent 172.
The silane coupling agent may be present in an amount of 3% by mass.
The ethyl acetate may be present in an amount of 7% or 15% by mass, or in a range having the above value as the upper limit value or the lower limit value.
In the invention, the total amount of the components of the primer meets 100 percent.
The preparation method of the primer is not particularly limited, and the primer to be sprayed is obtained by putting the raw materials in the proportion into a dispersion machine in no sequence and uniformly stirring the raw materials at a high speed.
Preferably, the finish paint comprises the following components in percentage by mass:
the optional ranges of the acrylic resin and the amino resin are the same, and are not described in detail herein.
The acrylic resin may be contained in an amount of 50%, 60%, 65%, 70% by mass or in a range where the above value is an upper limit value or a lower limit value.
The amino resin may be contained in an amount of 5%, 15%, or 20% by mass or in a range having the above value as an upper limit or a lower limit.
The mass content of the ethyl acetate may be 5%.
The mass content of the dimethyl carbonate can be 4%, 5%, 12%, or the above value is an upper limit value or a lower limit value.
The mass content of ethanol may be 1%, 3%, 10%, or may be in the range where the above value is the upper limit value or the lower limit value.
The ether may be contained in an amount of 1% by mass, 10% by mass, or in a range where the above value is an upper limit value or a lower limit value.
Preferably, the leveling agent is triethyl hexyl phosphoric acid or polyether modified organopolysiloxane.
The mass content of the leveling agent can be 0.5% or 1%.
Preferably, the wetting agent is a polyether siloxane copolymer.
The content of the wetting agent may be 0.5%, 1%, or a range in which the above value is an upper limit value or a lower limit value.
In the invention, the total amount of all components of the finish paint meets 100%.
The preparation method of the finish paint is not particularly limited, and the finish paint to be sprayed is obtained by putting the raw materials in the proportion into a dispersion machine in no sequence and uniformly stirring the raw materials at a high speed.
The invention provides the application of the high-performance benzene-free cold oil spraying paint as the paint spraying on the surface of the pull head.
The invention provides a surface paint spraying process of a pull head, which comprises the following steps:
s1) preprocessing the blank puller;
s2) mixing the primer and the diluent, spraying the mixture on the surface of the pull head, and then air-drying, baking and cooling the pull head to form the primer layer on the surface of the pull head;
s2) mixing the finish paint and the diluent, spraying the mixture on the surface of the primer layer, and then air-drying, baking and cooling the slider to form the finish paint layer on the surface of the slider.
The key point of the invention is to add a primer process, the primer plays a role in carrying between the zinc alloy and the finish, and the leveling effect of the primer is poor, so that the finish surface is required to be covered, and the leveling effect of the product is ensured.
In the primer formula, the reaction mechanism of isocyanate and epoxy resin is as follows: RNCO + R 'OH → RNHCOOR', the reaction belongs to a second-stage reaction, the reaction speed changes with the content of hydroxyl and does not change with the concentration of isocyanate, and the NCO-terminated polyurethane prepolymer increases the curing of epoxy resin and the overall toughness of paint.
The principle of action of a silane coupling agent as a tackifier is that it itself has two groups: a group can be bonded to the bonded backbone material; and the other group can be combined with a high polymer material or an adhesive, so that a chemical bond with higher strength is formed on a bonding interface, and the bonding strength is greatly improved.
The method of preprocessing the blank slider in the present invention is not particularly limited, and may be a processing method known to those skilled in the art.
Preferably, the blank puller is firstly phosphorized and then dried and baked for the next spraying.
Then the primer and the thinner are mixed and sprayed on the surface of the pull head.
Preferably, the diluent comprises the following components in percentage by mass:
more preferably, the diluent consists of the following components in percentage by mass:
the ethyl acetate may be present in an amount of 5%, 10%, 35%, or in a range having the above value as an upper or lower limit.
The content of the dimethyl carbonate can be 2%, 5%, 40%, or the above value is an upper limit value or a lower limit value.
The ethanol content may be 1%, 3%, 40%, or a range in which the above value is an upper limit value or a lower limit value.
The ether content may be 1%, 4%, 40%, or a range in which the above value is an upper limit value or a lower limit value.
The butanone content may be 5%, 13%, 40%, or may be in the range where the above value is the upper limit value or the lower limit value.
The content of isophorone can be 4%, 9%, 40%, or a range where the above value is an upper limit value or a lower limit value.
Preferably, the leveling agent is triethyl hexyl phosphoric acid or polyether modified organopolysiloxane.
The content of the leveling agent may be 1%.
In the invention, the total amount of the components of the diluent is 100 percent.
The preparation method of the diluent is not particularly limited, and the raw materials in the proportion are put into a dispersion machine according to a proportion and not in sequence, and the diluent is obtained after high-speed dispersion and uniform stirring.
Preferably, the volume ratio of the primer to the diluent is 1: (0.6-0.8).
According to the invention, the spraying is preferably carried out at room temperature, and the spraying time is preferably 2-3 min.
And after the spraying is finished, the pull head is dried, baked and cooled, and a primer layer is formed on the surface of the pull head.
According to the invention, the baking temperature is preferably 150-170 ℃, and the baking time is preferably 20-40 min, and more preferably 30 min.
Preferably, the steps are repeated for 2 to 4 times.
And then spraying finish paint.
Specifically, the finishing coat is mixed with a diluent and sprayed on the surface of the primer layer.
The diluent is the same as above and is not described in detail here.
Preferably, the volume ratio of the finish paint to the diluent is 1: (0.8 to 1).
According to the invention, the spraying is preferably carried out at room temperature, and the spraying time is preferably 2-3 min.
And after the spraying is finished, the pull head is dried, baked and cooled, and a finish paint layer is formed on the surface of the primer layer of the pull head.
According to the invention, the baking temperature is preferably 150-170 ℃, and the baking time is preferably 20-40 min, and more preferably 30 min.
Preferably, the steps are repeated for 6 to 8 times.
Compared with the prior art, the invention provides the high-performance benzene-free cold oil spraying paint which comprises a primer and a finish; the primer comprises the following components in percentage by mass: 40-80% of acrylic resin; 5 to 25 percent of amino resin; 1 to 5 percent of epoxy resin; 1 to 5 percent of isocyanate; 1 to 3 percent of silane coupling agent; 1 to 15 percent of ethyl acetate; the finish paint comprises the following components in percentage by mass: 40-80% of acrylic resin; 5 to 25 percent of amino resin; 1 to 15 percent of ethyl acetate; 1 to 15 percent of dimethyl carbonate; 1% -15% of ethanol; 1 to 15 percent of ether; 0.3 to 1 percent of flatting agent; 0.3 to 1 percent of wetting agent. The invention achieves the purposes of strong binding force and environment-friendly and pollution-free paint after the pull head is painted by adjusting the formula of the finish paint, replacing benzene organic solvents with dimethyl carbonate and the like, and combining the adjusted benzene-free finish paint formula by adding a primer process with a new formula. The prepared pull head finish paint has strong bonding stability and small harm to human bodies, improves the working environment of workers and realizes safe green manufacturing.
Detailed Description
In order to further illustrate the present invention, the high performance benzene-free cold spray paint and its application are described in detail below with reference to the following examples.
Example 1
Primer formulation
Finish paint formula
Diluent formulation
The operation comprises the following steps:
1) pretreatment: pouring the blank puller into a pretreatment automatic on-line treatment machine for treatment, and baking in a baking machine through an oil removal and leather membrane process to remove oil stains on the surface and coarsen the surface of the puller.
2) Adding the prepared primer paint and the diluent into a spray gun according to the proportion of 1:0.8 for spraying, pouring out the pull head, spreading, air-drying, baking (keeping the temperature at 170 ℃ for 30min), cooling, and repeating for 4 times;
3) adding the finish paint and the diluent into a spray gun according to the proportion of 1:1 for spraying, pouring out the pull head, spreading, air-drying, baking (keeping the temperature at 170 ℃ for 30min), cooling, and repeating for 10 times.
Example 2
Primer formulation
Finish paint formula
Diluent formulation
The operation comprises the following steps:
1) pretreatment: pouring the blank puller into a pretreatment automatic on-line treatment machine for treatment, and baking in a baking machine through an oil removal and leather membrane process to remove oil stains on the surface and coarsen the surface of the puller.
2) Adding the prepared primer paint and the diluent into a spray gun according to the proportion of 1:0.8 for spraying, pouring out the pull head, spreading, air-drying, baking (keeping the temperature at 170 ℃ for 30min), cooling, and repeating for 4 times;
3) adding the finish paint and the diluent into a spray gun according to the proportion of 1:1 for spraying, pouring out the pull head, spreading, air-drying, baking (keeping the temperature at 170 ℃ for 30min), cooling, and repeating for 10 times.
Example 3
Primer formulation
Finish paint formula
Diluent formulation
The operation comprises the following steps:
1) pretreatment: pouring the blank puller into a pretreatment automatic on-line treatment machine for treatment, and baking in a baking machine through an oil removal and leather membrane process to remove oil stains on the surface and coarsen the surface of the puller.
2) Adding the prepared primer paint and the diluent into a spray gun according to the proportion of 1:0.8 for spraying, pouring out the pull head, spreading, air-drying, baking (keeping the temperature at 170 ℃ for 30min), cooling, and repeating for 4 times;
3) adding the finish paint and the diluent into a spray gun according to the proportion of 1:1 for spraying, pouring out the pull head, spreading, air-drying, baking (keeping the temperature at 170 ℃ for 30min), cooling, and repeating for 10 times.
Comparative example 1
Primer formulation
Finish paint formula
Diluent formulation
The operation comprises the following steps:
1) pretreatment: pouring the blank puller into a pretreatment automatic on-line treatment machine for treatment, and baking in a baking machine through an oil removal and leather membrane process to remove oil stains on the surface and coarsen the surface of the puller.
2) Adding the prepared primer paint and the diluent into a spray gun according to the proportion of 1:0.8 for spraying, pouring out the pull head, spreading, air-drying, baking (keeping the temperature at 170 ℃ for 30min), cooling, and repeating for 4 times;
3) adding the finish paint and the diluent into a spray gun according to the proportion of 1:1 for spraying, pouring out the pull head, spreading, air-drying, baking (keeping the temperature at 170 ℃ for 30min), cooling, and repeating for 10 times.
Comparative example 2
Primer formulation
Finish paint formula
Diluent formulation
The operation comprises the following steps:
1) pretreatment: pouring the blank puller into a pretreatment automatic on-line treatment machine for treatment, and baking in a baking machine through an oil removal and leather membrane process to remove oil stains on the surface and coarsen the surface of the puller.
2) Adding the prepared primer paint and the diluent into a spray gun according to the proportion of 1:0.8 for spraying, pouring out the pull head, spreading, air-drying, baking (keeping the temperature at 170 ℃ for 30min), cooling, and repeating for 4 times;
3) adding the finish paint and the diluent into a spray gun according to the proportion of 1:1 for spraying, pouring out a pull head, spreading, air-drying, baking (keeping the temperature at 170 ℃ for 30min), cooling, and repeating for 10 times.
Comparative example 3
Finish paint formula
Diluent formulation
The operation comprises the following steps:
1) pretreatment: pouring the blank puller into a pretreatment automatic on-line treatment machine for treatment, and baking in a baking machine through an oil removal and leather membrane process to remove oil stains on the surface and coarsen the surface of the puller.
2) Adding the finish paint and the diluent into a spray gun according to the proportion of 1:1 for spraying, pouring out the pull head, spreading, air-drying, baking (keeping the temperature at 170 ℃ for 30min), cooling, and repeating for 10 times.
Comparative example 4
Primer formulation
Diluent formulation
The operation comprises the following steps:
1) pretreatment: pouring the blank puller into a pretreatment automatic on-line treatment machine for treatment, and baking in a baking machine through an oil removal and leather membrane process to remove oil stains on the surface and coarsen the surface of the puller.
2) Adding the prepared primer paint and the diluent into a spray gun according to the proportion of 1:0.8 for spraying, pouring out the pull head, spreading, air-drying, baking (keeping the temperature at 170 ℃ for 30min), cooling and repeating for 10 times.
And (3) performance detection:
the finished sliders of examples 1 to 3 and comparative examples 1 to 2 were subjected to a water washing test, and the detection conditions and results are shown in table 1:
table 1 test conditions and results of water washing test of finished sliders
The above description of the embodiments is only intended to facilitate the understanding of the method of the invention and its core idea. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (9)
1. A high-performance benzene-free cold oil spraying paint comprises a primer and a finish;
the primer comprises the following components in percentage by mass:
40% -80% of acrylic resin;
5% -25% of amino resin;
3% -6% of epoxy resin;
1% -5% of isocyanate;
1% -3% of a silane coupling agent;
1% -15% of ethyl acetate;
the finish paint comprises the following components in percentage by mass:
40% -80% of acrylic resin;
5% -25% of amino resin;
1% -15% of ethyl acetate;
1% -15% of dimethyl carbonate;
1% -15% of ethanol;
1% -15% of diethyl ether;
0.3% -1% of a leveling agent;
0.3 to 1 percent of wetting agent.
2. The high-performance benzene-free cold oil spraying paint as claimed in claim 1, which is characterized by comprising a primer and a finish;
the primer comprises the following components in percentage by mass:
70% -75% of acrylic resin;
5% -10% of amino resin;
4% -5% of epoxy resin;
1% -5% of isocyanate;
1% -3% of a silane coupling agent;
7% -15% of ethyl acetate;
the finish paint comprises the following components in percentage by mass:
50% -70% of acrylic resin;
5% -20% of amino resin;
1% -5% of ethyl acetate;
4% -12% of dimethyl carbonate;
1% -10% of ethanol;
1% -10% of diethyl ether;
0.5% -1% of a leveling agent;
0.5 to 1 percent of wetting agent.
3. The high-performance benzene-free cold spray paint according to claim 1, wherein the acrylic resin is an acrylic resin capable of reaching AC1175 thermosetting;
the amino resin is cyanot CYMEL325 methyl etherified high imino melamine resin;
the epoxy resin is south Asia epoxy resin NPSN-301x 75;
the isocyanate is German Bayer 3175;
the silane coupling agent is a coupling agent kh550 or a coupling agent 172;
the leveling agent is triethyl hexyl phosphoric acid or polyether modified organopolysiloxane;
the wetting agent is a polyether siloxane copolymer.
4. The use of the high performance benzene-free cold spray paint of any one of claims 1 to 3 as a slider surface spray paint.
5. A surface paint spraying process of a pull head comprises the following steps:
s1) preprocessing the blank puller;
s2) mixing the primer and the diluent, spraying the mixture on the surface of the pull head, and then air-drying, baking and cooling the pull head to form the primer layer on the surface of the pull head;
s2) mixing the finish paint and the diluent, spraying the mixture on the surface of the primer layer, and then air-drying, baking and cooling the slider to form the finish paint layer on the surface of the slider;
the primer and the finish coat are as defined in any one of claims 1 to 3.
6. The surface painting process according to claim 5, wherein the diluent consists of, by mass:
1% -40% of ethyl acetate;
1% -40% of dimethyl carbonate;
1% -40% of ethanol;
1% -40% of diethyl ether;
1% -40% of butanone;
1% -40% of isophorone;
0.3% -1% of a flatting agent.
7. The surface spray process of claim 6, wherein the leveling agent is triethylhexylphosphoric acid or polyether-modified organopolysiloxane.
8. The surface painting process according to claim 5, wherein the volume ratio of the primer to the diluent is 1: (0.6-0.8);
the volume ratio of the finish paint to the diluent is 1: (0.8 to 1).
9. The surface painting process according to claim 5, wherein the step S2) is repeated 2 to 4 times;
and step S3) is repeated for 6-10 times.
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| CN115073984A (en) * | 2022-07-01 | 2022-09-20 | 浙江伟星实业发展股份有限公司 | Paint for puller, painted puller and preparation method thereof |
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