CN110205032B - Pencil water paint and preparation method thereof - Google Patents
Pencil water paint and preparation method thereof Download PDFInfo
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- CN110205032B CN110205032B CN201910532841.XA CN201910532841A CN110205032B CN 110205032 B CN110205032 B CN 110205032B CN 201910532841 A CN201910532841 A CN 201910532841A CN 110205032 B CN110205032 B CN 110205032B
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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
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
- C09D201/00—Coating compositions based on unspecified macromolecular compounds
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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
- 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
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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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
- 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
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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
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Abstract
The invention provides a pencil water paint which comprises a primer, wherein the primer comprises the following components: 10-30 parts of water-soluble resin, 5-15 parts of polyurethane emulsion, 18-22 parts of deionized water, 1-5 parts of a pH regulator, 0.1-1 part of a defoaming agent, 2-4 parts of a film-forming assistant, 0.1-1 part of a wetting agent, 15-25 parts of talcum powder, 3-8 parts of heavy calcium carbonate and 15-23 parts of water-based white slurry. The water-based resin is selected, water is used as a main solvent, only a small amount of environment-friendly cosolvent is added, and no benzene series or ester solvent is contained.
Description
Technical Field
The invention relates to the technical field of water-based paint, in particular to water-based pencil paint and a preparation method thereof.
Background
As is well known, pencils play a significant role in modern educational materials. In addition, pencils are widely used in the fields of testing, painting, dressing and the like. In order to protect and decorate the surface of the pencil, it is necessary to coat it with a paint. In order to meet the requirements of different fields, the pencils with various colors and different performances can be prepared by coating different coatings on the pencils.
The coating used in the pencil industry at present is nitrolacquer, which has high drying speed and better hardness and brightness. However, the lacquer belongs to paint, and contains a large amount of organic solvents such as toluene, xylene, methyl acetate and the like. In the processes of preparation, storage, transportation and use, the organic solvent can pollute the environment and bring great potential safety hazards to human bodies and properties. Moreover, the prepared pencil has a problem of solvent residue, which is harmful to the health of users.
The water paint uses water as solvent, is harmless to human body and does not pollute environment. However, the existing water-based pencil paint has low painting amount, so that the coating has poor covering power and low fullness, and can not meet the performance requirement of the pencil paint.
Disclosure of Invention
The invention aims to provide a pencil water-based paint with high covering power and a preparation method thereof.
In order to solve the technical problem, the invention provides a pencil water paint which comprises a primer, wherein the primer comprises the following components: 10-30 parts of water-soluble resin, 5-15 parts of polyurethane emulsion, 18-22 parts of deionized water, 1-5 parts of a pH regulator, 0.1-1 part of a defoaming agent, 2-4 parts of a film-forming assistant, 0.1-1 part of a wetting agent, 15-25 parts of talcum powder, 3-8 parts of heavy calcium carbonate and 15-23 parts of water-based white slurry.
Optionally, the pencil water paint further comprises a gloss paint, and the gloss paint comprises the following components: 10-82 parts of water-based acrylic emulsion, 10-20 parts of water-based acrylic resin, 0.007-0.02 part of propylene glycol butyl ether, 0.02-0.2 part of ethanol, 0.02-0.2 part of water, 0.0005-0.003 part of defoaming agent, 0.01-0.03 part of pH regulator and 0.0005-0.009 part of hand feeling agent.
Optionally, the gloss paint comprises the following components: 20-60 parts of water-based acrylic emulsion, 13-18 parts of water-based acrylic resin, 0.007-0.02 part of propylene glycol butyl ether, 0.02-0.2 part of ethanol, 0.02-0.2 part of water, 0.0005-0.003 part of defoaming agent, 0.01-0.03 part of pH regulator and 0.0005-0.009 part of hand feeling agent.
Optionally, the pencil water paint further comprises a gloss paint, and the gloss paint comprises the following components: 15-25 parts of water-soluble resin, 15-25 parts of polyurethane emulsion, 45-55 parts of deionized water, 1-10 parts of pH regulator, 0.1-3 parts of defoaming agent, 1-3 parts of film-forming assistant, 0.1-2 parts of wetting agent and 0.1-2 parts of hand feeling agent.
Optionally, the pencil water paint further comprises a colored paint, wherein the colored paint comprises the following components: 50-80 parts of water-based acrylic emulsion and water-based acrylic resin, 0.002-0.02 part of dispersing agent, 0.01-0.1 part of silicon dioxide, 0.05-0.3 part of talcum powder, 0.0005-0.003 part of defoaming agent and 8-30 parts of water-based color paste.
Optionally, the pencil water paint further comprises a colored paint, wherein the colored paint comprises the following components: 60-70 parts of water-based acrylic emulsion and water-based acrylic resin, 0.002-0.01 part of dispersing agent, 0.01-0.1 part of silicon dioxide, 0.05-0.3 part of talcum powder, 0.0005-0.003 part of defoaming agent and 8-30 parts of water-based color paste.
Optionally, the pencil water paint further comprises a colored paint, wherein the colored paint comprises the following components: 15-20 parts of water-soluble resin, 10-15 parts of polyurethane emulsion, 15-25 parts of deionized water, 1-5 parts of pH regulator, 0.1-1 part of defoaming agent, 3 parts of film-forming assistant, 0.5 part of wetting agent, 20 parts of talcum powder, 5 parts of heavy calcium and 18 parts of water-based color paste.
The invention also provides a preparation method of any one of the pencil water-based paints, which comprises a primer preparation step, wherein the primer preparation step comprises the following steps:
weighing: weighing each component of the primer;
mixing: mixing and stirring the water-soluble resin, the polyurethane emulsion and the deionized water at the rotating speed of 800-; then adding the defoaming agent, the film forming additive and the wetting agent, stirring for 5-10 minutes at the rotation speed of 1000-; then adding talcum powder, heavy calcium carbonate and water-based white slurry, and stirring for 5-10 minutes;
grinding: and grinding the material obtained in the mixing step to obtain the primer.
Optionally, the preparation method of the pencil water-based paint comprises a colored paint preparation step, wherein the colored paint preparation step comprises:
weighing: weighing the components of the colored paint;
mixing: mixing and stirring the water-soluble resin, the polyurethane emulsion and the deionized water at the rotating speed of 800-; then adding the defoaming agent, the film forming additive and the wetting agent, stirring for 5-10 minutes at the rotation speed of 1000-; then adding talcum powder, heavy calcium carbonate and water-based white slurry, and stirring for 5-10 minutes;
grinding: and grinding the materials obtained in the mixing step to obtain the colored paint.
Optionally, the preparation method of the pencil water-based paint comprises a varnish preparation step, and the varnish preparation step comprises:
weighing: weighing the components of the gloss paint;
mixing: mixing and stirring the water-soluble resin, the polyurethane emulsion and the deionized water at the rotating speed of 800-; adding the defoaming agent, the film forming additive and the wetting agent, and stirring for 5-10 minutes; then adding talcum powder, heavy calcium carbonate and water-based white slurry, and stirring for 20-30 minutes to obtain the gloss paint.
In conclusion, the water-based resin is selected, water is used as a main solvent, only a small amount of environment-friendly cosolvent is added, and no benzene series or ester solvents are contained, so that the prepared water-based pencil paint is higher than the national standard of water-based wood paint in environmental protection performance, has low odor and is non-combustible, and is environment-friendly and safe.
Meanwhile, the pencil water-based paint disclosed by the invention has good covering power and adhesive force. The invention adopts water-soluble resin and polyurethane emulsion as film forming material. The conventional aqueous emulsion or dispersion has only physical force among particles, has low strength, and the particles are separated from each other under the condition of strong shearing in the drawing process, so that the paint attached to a pen holder is little. The water-soluble resin is similar to the oily resin, molecules are wound, the interaction force is high, and the water-based paint prepared by mixing the water-soluble resin and the common emulsion has enough paint attached to the penholder under strong shearing.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The parts mentioned in the present invention are parts by weight.
Example one
This example provides a pencil water paint that includes a primer.
The preparation method of the primer is as follows:
s11: respectively weighing 20 parts of water-soluble resin, 10 parts of polyurethane emulsion, 20 parts of deionized water, 3 parts of pH regulator, 0.5 part of organic silicon defoamer, 3 parts of film-forming additive, 0.5 part of wetting agent, 20 parts of talcum powder, 5 parts of heavy calcium and 18 parts of aqueous white slurry.
S12: mixing and stirring water-soluble resin, polyurethane emulsion and deionized water at the rotating speed of 1000 rpm, slowly adding a pH regulator, and stirring for 10 minutes; then adding the organic silicon defoamer, the film forming additive and the wetting agent, stirring for 10 minutes at the rotating speed of 1500 rpm, adding the talcum powder, the coarse whiting and the water-based white slurry, and stirring for 10 minutes.
S13: and (4) grinding the material obtained in the step S12 by using a 2-level horizontal grinder, and discharging to obtain the primer.
Example two
The embodiment provides a lead-based pen which comprises a primer and a colored paint.
The preparation method of the primer is as follows:
s11: respectively weighing 20 parts of water-soluble resin, 10 parts of polyurethane emulsion, 20 parts of deionized water, 3 parts of pH regulator, 0.5 part of organic silicon defoamer, 3 parts of film-forming additive, 0.5 part of wetting agent, 20 parts of talcum powder, 5 parts of heavy calcium and 18 parts of aqueous white slurry.
S12: mixing and stirring water-soluble resin, polyurethane emulsion and deionized water at the rotating speed of 1000 rpm, slowly adding a pH regulator, and stirring for 10 minutes; then adding the organic silicon defoamer, the film forming additive and the wetting agent, stirring for 10 minutes at the rotating speed of 1500 rpm, adding the talcum powder, the coarse whiting and the water-based white slurry, and stirring for 10 minutes.
S13: and (5) grinding the material obtained in the step S12 through a 2-level horizontal grinder, and discharging to obtain the primer.
The preparation method of the colored paint is as follows:
s21: respectively weighing 18 parts of water-soluble resin, 12 parts of polyurethane emulsion, 20 parts of deionized water, 3 parts of pH regulator, 0.5 part of organic silicon defoamer, 3 parts of film-forming additive, 0.5 part of wetting agent, 20 parts of talcum powder, 5 parts of heavy calcium and 18 parts of water-based color paste.
S22: mixing and stirring the water-soluble resin, the polyurethane emulsion and the deionized water at the rotating speed of 1000 rpm, slowly adding the pH regulator, and stirring for 10 minutes. Then adding the organic silicon defoamer, the film forming additive and the wetting agent, stirring for 10 minutes at the rotating speed of 1500 rpm, adding the talcum powder, the coarse whiting and the aqueous white slurry, and stirring for 10 minutes.
S23: and (5) grinding the material obtained in the step S22 through a 2-level horizontal grinder, and discharging to obtain the colored paint.
EXAMPLE III
The embodiment provides a pencil which comprises a primer, a colored paint and a gloss paint.
Preparation of the base coat and the color coat is the same as in example two
The preparation method of the gloss paint is as follows:
s31: weighing 20 parts of water-soluble resin, 20 parts of polyurethane emulsion, 50 parts of deionized water, 5 parts of pH regulator, 1 part of defoaming agent, 2 parts of film-forming assistant, 1 part of wetting agent and 1 part of hand feeling agent.
S32: mixing and stirring water-soluble resin, polyurethane emulsion and deionized water at the rotating speed of 1000 rpm, slowly adding a pH regulator, stirring for 10 minutes, then adding an organic silicon defoamer, a film-forming aid, a wetting agent and a hand feeling agent, stirring for 30 minutes, and discharging to obtain the gloss paint.
Example four
The embodiment provides a pencil which comprises a primer, a colored paint and a gloss paint.
The preparation method of the primer is as follows:
s11: respectively weighing 10 parts of water-soluble resin, 5 parts of polyurethane emulsion, 18 parts of deionized water, 1 part of pH regulator, 0.1 part of organic silicon defoamer, 2 parts of film-forming additive, 0.1 part of wetting agent, 15 parts of talcum powder, 3 parts of heavy calcium and 15 parts of aqueous white slurry.
S12: mixing and stirring water-soluble resin, polyurethane emulsion and deionized water at the rotating speed of 800 rpm, slowly adding a pH regulator, and stirring for 5 minutes; then adding the organic silicon defoamer, the film forming additive and the wetting agent, stirring for 5 minutes at the rotating speed of 1000 revolutions per minute, adding the talcum powder, the coarse whiting and the water-based white slurry, and stirring for 5 minutes.
S13: and (5) grinding the material obtained in the step S12 through a 2-level horizontal grinder, and discharging to obtain the primer.
The preparation method of the colored paint is as follows:
s21: respectively weighing 80 parts of water-based acrylic emulsion and water-based acrylic resin which are equal in quantity, 0.02 part of dispersing agent, 0.1 part of silicon dioxide, 0.3 part of talcum powder, 0.003 part of defoaming agent and 30 parts of water-based color paste.
S22: mixing and stirring the water-based acrylic emulsion and the water-based acrylic resin at the rotating speed of 1000 rpm, adding the defoaming agent, the dispersing agent and the silicon dioxide, stirring for 10 minutes at the rotating speed of 1500 rpm, adding the talcum powder and the white water-based color paste, and stirring for 10 minutes.
S23: and (5) grinding the material obtained in the step S22 through a 2-level horizontal grinder, and discharging to obtain the colored paint.
The preparation method of the gloss paint is as follows:
s31: weighing 80 parts of water-based acrylic emulsion, 20 parts of water-based acrylic resin, 0.02 part of propylene glycol butyl ether, 0.02 part of ethanol, 0.02 part of water, 0.0005 part of defoaming agent, 0.01 part of pH regulator and 0.009 part of hand feeling agent.
S32: mixing and stirring the water-based acrylic emulsion, the water-based acrylic resin, the propylene glycol monobutyl ether, the ethanol and the water at the rotating speed of 1000 rpm, slowly adding the pH regulator, stirring for 10 minutes, adding the defoaming agent and the hand feeling agent, stirring for 20 minutes, and discharging to obtain the gloss paint.
EXAMPLE five
The embodiment provides a pencil which comprises a primer, a colored paint and a gloss paint.
The preparation method of the primer is as follows:
s11: 30 parts of water-soluble resin, 15 parts of polyurethane emulsion, 22 parts of deionized water, 5 parts of pH regulator, 1 part of organic silicon defoamer, 4 parts of film-forming aid, 1 part of wetting agent, 25 parts of talcum powder, 8 parts of heavy calcium carbonate and 23 parts of aqueous white slurry are respectively weighed.
S12: mixing and stirring water-soluble resin, polyurethane emulsion and deionized water at the rotating speed of 800 rpm, slowly adding a pH regulator, and stirring for 5 minutes; then adding the organic silicon defoamer, the film forming additive and the wetting agent, stirring for 5 minutes at the rotating speed of 1000 revolutions per minute, adding the talcum powder, the coarse whiting and the water-based white slurry, and stirring for 5 minutes.
S13: and (5) grinding the material obtained in the step S12 through a 2-level horizontal grinder, and discharging to obtain the primer.
The preparation method of the colored paint is as follows:
s21: respectively weighing 50 parts of water-based acrylic emulsion and water-based acrylic resin, 0.002 part of dispersant, 0.01 part of silicon dioxide, 0.05 part of talcum powder, 0.0005 part of defoaming agent and 8 parts of water-based color paste.
S22: mixing and stirring the water-based acrylic emulsion and the water-based acrylic resin at the rotating speed of 1000 rpm, adding the defoaming agent, the dispersing agent and the silicon dioxide, stirring for 10 minutes at the rotating speed of 1500 rpm, adding the talcum powder and the white water-based color paste, and stirring for 10 minutes.
S23: and (5) grinding the material obtained in the step S22 through a 2-level horizontal grinder, and discharging to obtain the colored paint.
The preparation method of the gloss paint is as follows:
s31: weighing 10 parts of water-based acrylic emulsion, 10 parts of water-based acrylic resin, 0.007 part of propylene glycol butyl ether, 0.2 part of ethanol, 0.2 part of water, 0.003 part of defoaming agent, 0.03 part of pH regulator and 0.0005 part of hand feeling agent.
S32: mixing and stirring the water-based acrylic emulsion, the water-based acrylic resin, the propylene glycol monobutyl ether, the ethanol and the water at the rotating speed of 1000 rpm, slowly adding the pH regulator, stirring for 10 minutes, adding the defoaming agent and the hand feeling agent, stirring for 20 minutes, and discharging to obtain the gloss paint.
EXAMPLE six
The embodiment provides a pencil which comprises a primer, a colored paint and a gloss paint.
The primer and the colored paint are the same as those of the fifth example, and only the gloss paint is slightly different, and the preparation method of the gloss paint of the present example is as follows:
s31: 60 parts of water-based acrylic emulsion, 18 parts of water-based acrylic resin, 0.01 part of propylene glycol butyl ether, 0.1 part of ethanol, 0.1 part of water, 0.001 part of defoaming agent, 0.02 part of pH regulator and 0.0007 part of hand feeling agent are weighed.
S32: mixing and stirring the water-based acrylic emulsion, the water-based acrylic resin, the propylene glycol monobutyl ether, the ethanol and the water at the rotating speed of 1000 rpm, slowly adding the pH regulator, stirring for 10 minutes, adding the defoaming agent and the hand feeling agent, stirring for 20 minutes, and discharging to obtain the gloss paint.
EXAMPLE seven
The embodiment provides a pencil which comprises a primer, a colored paint and a gloss paint.
The primer and the gloss paint are the same as those of the fifth example, and only the color paint is slightly different, and the preparation method of the color paint of the present example is as follows:
s21: respectively weighing 60 parts of water-based acrylic emulsion and water-based acrylic resin, 0.005 part of dispersant, 0.05 part of silicon dioxide, 0.2 part of talcum powder, 0.005 part of defoamer and 20 parts of water-based color paste.
S22: mixing and stirring the water-based acrylic emulsion and the water-based acrylic resin at the rotating speed of 1000 rpm, adding the defoaming agent, the dispersing agent and the silicon dioxide, stirring for 10 minutes at the rotating speed of 1500 rpm, adding the talcum powder and the white water-based color paste, and stirring for 10 minutes.
Example eight
The embodiment provides a pencil which comprises a primer, a colored paint and a gloss paint.
The primer and the colored paint are the same as those of the fifth example, and only the gloss paint is slightly different, and the preparation method of the gloss paint of the present example is as follows:
s31: weighing 50 parts of water-based acrylic emulsion, 13 parts of water-based acrylic resin, 0.01 part of propylene glycol butyl ether, 0.1 part of ethanol, 0.1 part of water, 0.001 part of defoaming agent, 0.02 part of pH regulator and 0.0007 part of hand feeling agent.
S32: mixing and stirring the water-based acrylic emulsion, the water-based acrylic resin, the propylene glycol monobutyl ether, the ethanol and the water at the rotating speed of 1000 rpm, slowly adding the pH regulator, stirring for 10 minutes, adding the defoaming agent and the hand feeling agent, stirring for 20 minutes, and discharging to obtain the gloss paint.
Example nine
The embodiment provides a pencil which comprises a primer, a colored paint and a gloss paint.
The primer and the gloss paint are the same as those of the fifth example, and only the color paint is slightly different, and the preparation method of the color paint of the present example is as follows:
s21: respectively weighing 70 parts of water-based acrylic emulsion and water-based acrylic resin, 0.005 part of dispersant, 0.05 part of silicon dioxide, 0.2 part of talcum powder, 0.005 part of defoamer and 20 parts of water-based color paste which are equal in quantity.
S22: mixing and stirring the water-based acrylic emulsion and the water-based acrylic resin at the rotating speed of 1000 rpm, adding the defoaming agent, the dispersing agent and the silicon dioxide, stirring for 10 minutes at the rotating speed of 1500 rpm, adding the talcum powder and the white water-based color paste, and stirring for 10 minutes.
Comparative examples
S101: respectively weighing 20 parts of water-soluble resin, 20 parts of deionized water, 3 parts of pH regulator, 0.5 part of organic silicon defoamer, 3 parts of film-forming additive, 0.5 part of wetting agent, 20 parts of talcum powder, 5 parts of heavy calcium and 18 parts of aqueous white slurry.
S102: mixing and stirring water-soluble resin and deionized water at the rotating speed of 1000 rpm, slowly adding a pH regulator, and stirring for 10 minutes; then adding the organic silicon defoamer, the film forming additive and the wetting agent, stirring for 10 minutes at the rotating speed of 1500 rpm, adding the talcum powder, the coarse whiting and the water-based white slurry, and stirring for 10 minutes.
S103: and (4) grinding the material obtained in the step (S102) by using a 2-level horizontal grinder, and discharging to obtain the water-based paint.
The pencil water-based paints obtained in each example and comparative example were subjected to Volatile Organic Compounds (VOC) test, and the test structures are shown in the following tables. Meanwhile, the coating is coated on the same pencil by the same coating process, and the covering power, the adhesive force and the water resistance of the obtained coating are respectively tested. The test structures are shown in table 1. Wherein the covering power is determined according to the standard GB1726-79 coating covering power determination method. The water resistance test refers to the time for which the coating on the surface of the pencil changes when immersed in water having a pH in the range of 5 to 9.
TABLE 1 Performance parameters of the aqueous pencil paints obtained in the examples and comparative examples
In conclusion, the water-based resin is selected, water is used as a main solvent, only a small amount of environment-friendly cosolvent is added, and no benzene series or ester solvents are contained, so that the prepared water-based pencil paint is higher than the national standard of water-based wood paint in environmental protection performance, has low odor and is non-combustible, and is environment-friendly and safe.
Meanwhile, water-soluble resin and polyurethane emulsion are mixed and spliced to be used as a film forming substance. The conventional aqueous emulsion or dispersion has only physical force among particles, has low strength, and the particles are separated from each other under the condition of strong shearing in the drawing process, so that the paint attached to a pen holder is little. The water-soluble resin is similar to the oily resin, molecules are wound, the interaction force is high, and the water-based paint prepared by mixing the water-soluble resin and the common emulsion has enough paint attached to the penholder under strong shearing.
Further, when the hiding power is a numerical value, a smaller value indicates a better hiding power. As can be seen from the data in the table, compared with the comparative examples, the covering power of the pencil water paint of the present invention is less than 200, and when the primer, the color paint and the top paint are used together, the covering power is less than 150, therefore, the pencil water paint of the present invention has good covering power. Analysis of the data in the table shows that the pencil water paint of the present invention also has good water resistance and adhesion, because the resin in the water paint has self-crosslinking property. Meanwhile, the pen water paint disclosed by the invention can achieve the degree comparable to that of oil paint in terms of color vividness and brightness.
Then, the water-based pencil paint disclosed by the invention has both drying property and adhesive force, when the water-based pencil paint is baked at 50-55 ℃ for 2 minutes, the water-based pencil paint can be normally stacked, the prepared pencil has good adhesive force, and the phenomenon of paint collapse on the upper surface of the pencil head is avoided.
In addition, it is clear from the data in the table that the color paint and the gloss paint prepared by blending the water-soluble resin and the polyurethane emulsion as the film-forming material are also superior in hiding degree to the water-based paint prepared from the water-soluble resin alone.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The pencil water-based paint is characterized by comprising a primer, wherein the primer comprises the following components: 10-30 parts of water-soluble resin, 5-15 parts of polyurethane emulsion, 18-22 parts of deionized water, 1-5 parts of a pH regulator, 0.1-1 part of a defoaming agent, 2-4 parts of a film-forming assistant, 0.1-1 part of a wetting agent, 15-25 parts of talcum powder, 3-8 parts of heavy calcium carbonate and 15-23 parts of water-based white slurry;
the pencil water paint also comprises a gloss paint, wherein the gloss paint comprises the following components: 10-82 parts of water-based acrylic emulsion, 10-20 parts of water-based acrylic resin, 0.007-0.02 part of propylene glycol butyl ether, 0.02-0.2 part of ethanol, 0.02-0.2 part of water, 0.0005-0.003 part of defoaming agent, 0.01-0.03 part of pH regulator and 0.0005-0.009 part of hand feeling agent.
2. The aqueous pencil paint of claim 1, wherein the varnish comprises the following components: 20-60 parts of water-based acrylic emulsion, 13-18 parts of water-based acrylic resin, 0.007-0.02 part of propylene glycol butyl ether, 0.02-0.2 part of ethanol, 0.02-0.2 part of water, 0.0005-0.003 part of defoaming agent, 0.01-0.03 part of pH regulator and 0.0005-0.009 part of hand feeling agent.
3. The pencil water-based paint according to any one of claims 1 to 2, further comprising a colored paint, wherein the colored paint comprises the following components: 50-80 parts of water-based acrylic emulsion and water-based acrylic resin, 0.002-0.02 part of dispersing agent, 0.01-0.1 part of silicon dioxide, 0.05-0.3 part of talcum powder, 0.0005-0.003 part of defoaming agent and 8-30 parts of water-based color paste.
4. The pencil water-based paint according to any one of claims 1 to 2, further comprising a colored paint, wherein the colored paint comprises the following components: 60-70 parts of water-based acrylic emulsion and water-based acrylic resin, 0.002-0.01 part of dispersing agent, 0.01-0.1 part of silicon dioxide, 0.05-0.3 part of talcum powder, 0.0005-0.003 part of defoaming agent and 8-30 parts of water-based color paste.
5. The pencil water-based paint according to any one of claims 1 to 2, further comprising a colored paint, wherein the colored paint comprises the following components: 15-20 parts of water-soluble resin, 10-15 parts of polyurethane emulsion, 15-25 parts of deionized water, 1-5 parts of pH regulator, 0.1-1 part of defoaming agent, 3 parts of film-forming assistant, 0.5 part of wetting agent, 20 parts of talcum powder, 5 parts of heavy calcium and 18 parts of water-based color paste.
6. The pencil water-based paint of claim 1, wherein the primer comprises the following components: 20 parts of water-soluble resin, 10 parts of polyurethane emulsion, 20 parts of deionized water, 3 parts of pH regulator, 0.5 part of organic silicon defoamer, 3 parts of film-forming assistant, 0.5 part of wetting agent, 20 parts of talcum powder, 5 parts of heavy calcium and 18 parts of aqueous white slurry; or 10 parts of water-soluble resin, 5 parts of polyurethane emulsion, 18 parts of deionized water, 1 part of pH regulator, 0.1 part of organic silicon defoamer, 2 parts of film-forming assistant, 0.1 part of wetting agent, 15 parts of talcum powder, 3 parts of heavy calcium and 15 parts of aqueous white slurry; or 30 parts of water-soluble resin, 15 parts of polyurethane emulsion, 22 parts of deionized water, 5 parts of pH regulator, 1 part of organic silicon defoamer, 4 parts of film-forming assistant, 1 part of wetting agent, 25 parts of talcum powder, 8 parts of heavy calcium and 23 parts of aqueous white slurry.
7. A method for preparing the pencil aqueous paint according to any one of claims 1 to 6, wherein the method for preparing the pencil aqueous paint comprises a primer preparing step, and the primer preparing step comprises:
weighing: weighing each component of the primer;
mixing: mixing and stirring the water-soluble resin, the polyurethane emulsion and the deionized water at the rotating speed of 800-; then adding the defoaming agent, the film forming additive and the wetting agent, stirring for 5-10 minutes at the rotation speed of 1000-; then adding talcum powder, heavy calcium carbonate and water-based white slurry, and stirring for 5-10 minutes;
grinding: and grinding the material obtained in the mixing step to obtain the primer.
8. The method for preparing a pencil aqueous paint according to claim 7, comprising a colored paint preparation step, wherein the colored paint preparation step comprises:
weighing: weighing the components of the colored paint;
mixing: mixing and stirring the water-soluble resin, the polyurethane emulsion and the deionized water at the rotating speed of 800-; then adding the defoaming agent, the film forming additive and the wetting agent, stirring for 5-10 minutes at the rotation speed of 1000-; then adding talcum powder, heavy calcium carbonate and water-based white slurry, and stirring for 5-10 minutes;
grinding: and grinding the materials obtained in the mixing step to obtain the colored paint.
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| CN112521812A (en) * | 2020-12-09 | 2021-03-19 | 浙江贝斯特软化板有限公司 | Water-based paint suitable for pencil continuous production and preparation method thereof |
| CN112354827A (en) * | 2020-12-09 | 2021-02-12 | 浙江贝斯特软化板有限公司 | Water paint pencil painting process and special equipment |
| CN112876919A (en) * | 2021-01-15 | 2021-06-01 | 湖州和悦新材料科技股份有限公司 | ECO water-based pencil colored paint and preparation method thereof |
| CN113185905A (en) * | 2021-05-13 | 2021-07-30 | 浙江光辉文教用品有限公司 | Environment-friendly water-based drawing paint for pencils and preparation method thereof |
| CN113512329A (en) * | 2021-05-28 | 2021-10-19 | 衡水铅笔铅笔漆股份有限公司 | Water-based quick-drying pencil drawing paint, black paint and silver paint and preparation method thereof |
| CN113512330A (en) * | 2021-05-31 | 2021-10-19 | 衡水铅笔铅笔漆股份有限公司 | zero-VOC (volatile organic compound) water-based quick-drying pencil paint, primer, finish paint, preparation method and pencil |
| CN113248991A (en) * | 2021-06-07 | 2021-08-13 | 昆山禾研材料有限公司 | Water-based primer-topcoat paint for pencils and preparation method of pencils |
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