CN101712843A - Color paste for environment-friendly blackboard coating and preparation method of special maintenance coating for environment-friendly blackboard - Google Patents
Color paste for environment-friendly blackboard coating and preparation method of special maintenance coating for environment-friendly blackboard Download PDFInfo
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- CN101712843A CN101712843A CN200910265895A CN200910265895A CN101712843A CN 101712843 A CN101712843 A CN 101712843A CN 200910265895 A CN200910265895 A CN 200910265895A CN 200910265895 A CN200910265895 A CN 200910265895A CN 101712843 A CN101712843 A CN 101712843A
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- aqueous polyurethane
- blackboard
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- 239000011248 coating agent Substances 0.000 title claims abstract description 40
- 238000000576 coating method Methods 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000012423 maintenance Methods 0.000 title abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000008367 deionised water Substances 0.000 claims abstract description 11
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 9
- 229920005749 polyurethane resin Polymers 0.000 claims description 28
- 239000002994 raw material Substances 0.000 claims description 28
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 18
- 239000006185 dispersion Substances 0.000 claims description 18
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 10
- 239000006229 carbon black Substances 0.000 claims description 9
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 9
- 239000003112 inhibitor Substances 0.000 claims description 9
- 235000012204 lemonade/lime carbonate Nutrition 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 239000006224 matting agent Substances 0.000 claims description 9
- 239000000843 powder Substances 0.000 claims description 9
- 239000000377 silicon dioxide Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 230000008719 thickening Effects 0.000 claims description 9
- XCJYREBRNVKWGJ-UHFFFAOYSA-N copper(II) phthalocyanine Chemical compound [Cu+2].C12=CC=CC=C2C(N=C2[N-]C(C3=CC=CC=C32)=N2)=NC1=NC([C]1C=CC=CC1=1)=NC=1N=C1[C]3C=CC=CC3=C2[N-]1 XCJYREBRNVKWGJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 235000011837 pasties Nutrition 0.000 claims description 6
- 239000004408 titanium dioxide Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 230000004438 eyesight Effects 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 239000000049 pigment Substances 0.000 abstract description 3
- 239000000654 additive Substances 0.000 abstract 1
- 239000005337 ground glass Substances 0.000 abstract 1
- 230000003313 weakening effect Effects 0.000 abstract 1
- 239000002023 wood Substances 0.000 abstract 1
- 235000019241 carbon black Nutrition 0.000 description 7
- 235000010215 titanium dioxide Nutrition 0.000 description 7
- 239000003643 water by type Substances 0.000 description 6
- 239000004568 cement Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical class [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 3
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 206010063493 Premature ageing Diseases 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000005338 frosted glass Substances 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Paints Or Removers (AREA)
Abstract
The invention discloses a color paste for an environment-friendly blackboard coating and a preparation method of a special maintenance coating for the environment-friendly blackboard, solving the problem of short service life, light reflection, easy slipping, and the like of a blackboard in the prior art. The color paste comprises water-soluble resin, pigments, additives, curing agent, deionized water, and the like. Various traditional blackboards comprising concrete blackboards, ground glass blackboards, wood blackboards and steel blackboards coated with the coating have the advantages of easy writing and erasion, no light reflection or slipping, long service life, and the like and can be used for a long time without weakening the vision of students.
Description
Technical field
The present invention relates to a kind of color paste for green blackboard coating and method for manufacturing coating special for maintaining green blackboard.
Background technology
The kind of the blackboard in the school roughly can be divided into cement blackboard, obscure glass blackboard, wooden blackboard, steel blackboard etc., these blackboards are mostly based on the solvent-borne type phenolic coating, there is preserving period long (needs could use after 48 hours), organic volatile object height, problems such as contaminate environment; Simultaneously along with the growth of duration of service, these blackboards occur premature ageing easily, fall lacquer, are difficult for wiping clean, reflective, problem such as skid, and have seriously influenced the teaching writing effect of school, and life-time service also can influence the eyesight of students.
Summary of the invention
For overcoming above-mentioned defective, it is simple to the invention provides a kind of use, easy to maintenance, and write well after safeguarding, easily wipe, not reflective, non-slip, the plate face water-soluble tailor-(made) coating of maintaining green blackboard clearly.
For achieving the above object, the making method of the water-soluble tailor-(made) coating of maintaining green blackboard of the present invention, it is made according to following method:
1) preparation mill base;
Its concrete steps are to take off the raw material of stating weight part:
Aqueous polyurethane resin 2546 6-60 parts, aqueous polyurethane resin 2651 6-60 parts, aqueous polyurethane resin 2601 6-60 parts, titanium dioxide 1-20 part, carbon black 0.1-2.5 part, iron oxide yellow 1-15 part, phthalocyanine blue 1-10 part, the dark green 5319 1-15 parts of phthalein, the dark green 5340 1-15 parts of phthalein, talcum powder 5-40 part, silica powder 5-30 part, barium sulfate 1-15 part, lime carbonate 1-15 part, matting agent 1-15 part, dispersion agent 5027 0.5-5 parts, dispersion agent 5040 0.5-5 parts, flow agent 0.1-2.5 part, sticking power promotor 0.1-3 part, anti-settling agent 1-10 part, thickening material 0.1-3 part, mould inhibitor 0.1-3 part, frostproofer 1-5 part, deionized water 5-45 part;
To stir after above-mentioned each raw material mixing, and the above-mentioned raw material that stirs is ground to pasty state;
2) preparation blender;
Its concrete steps are: take off the raw material of stating weight part: resin 30-60 part, and flow agent 0.1-2.5 part,
Frostproofer 1-5 part, deionized water 5-45 part;
3) allotment coating: get above-mentioned mill base 75-90 part, blender 20-25 part by weight, be stirred into the coating of making predetermined viscosity, finished product.
For achieving the above object, color paste for green blackboard coating of the present invention, make by the raw material of following weight parts:
Aqueous polyurethane resin 2546 6-60 parts, aqueous polyurethane resin 2651 6-60 parts, aqueous polyurethane resin 2601 6-60 parts, titanium dioxide 1-20 part, carbon black 0.1-2.5 part, iron oxide yellow 1-15 part, phthalocyanine blue 1-10 part, the dark green 5319 1-15 parts of phthalein, the dark green 5340 1-15 parts of phthalein, talcum powder 5-40 part, silica powder 5-30 part, barium sulfate 1-15 part, lime carbonate 1-15 part, matting agent 1-15 part, dispersion agent 5027 0.5-5 parts, dispersion agent 5040 0.5-5 parts, flow agent 0.1-2.5 part, sticking power promotor 0.1-3 part, anti-settling agent 1-10 part, thickening material 0.1-3 part, mould inhibitor 0.1-3 part, frostproofer 1-5 part, deionized water 5-45 part;
Adopt above-mentioned coating to be coated in existing various blackboard (comprising cement blackboard, obscure glass blackboard, wooden blackboard, steel blackboard), with water as solvent, low VOC discharging, environmental protection helps teachers and students' physical and mental health; Curing time short (can use in the longest 12 hours) is safeguarded blackboard convenience, fast drying, good, the strong adhesion of wear resistance, and have after safeguarding write, easily wiping, characteristics such as not reflective, non-slip, long service life, life-time service does not damage student eyesight; The blackboard that uses this coating to safeguard can make the student keep good visual psychology state in the classroom
Description of drawings
Fig. 1 is technological process of production figure of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is further described.
Color paste for green blackboard coating of the present invention, make by the raw material of following weight parts:
Aqueous polyurethane resin 2546 6-60 parts, aqueous polyurethane resin 2651 6-60 parts, aqueous polyurethane resin 2601 6-60 parts, titanium dioxide 1-20 part, carbon black 0.1-2.5 part, iron oxide yellow 1-15 part, phthalocyanine blue 1-10 part, the dark green 5319 1-15 parts of phthalein, the dark green 5340 1-15 parts of phthalein, talcum powder 5-40 part, silica powder 5-30 part, barium sulfate 1-15 part, lime carbonate 1-15 part, matting agent 1-15 part, dispersion agent 5027 0.5-5 parts, dispersion agent 5040 0.5-5 parts, flow agent 0.1-2.5 part, sticking power promotor 0.1-3 part, anti-settling agent 1-10 part, thickening material 0.1-3 part, mould inhibitor 0.1-3 part, frostproofer 1-5 part, deionized water 5-45 part;
Wherein, in the above-mentioned raw materials, what of each pigment can determine the depth of color, and pigment what therefore can increase as required.The effect of resin, auxiliary agent and deionized water mainly is the viscosity and the set time of control paint film, and those of ordinary skill in the art can adjust as required.According to embodiment the present invention is further described below.
Embodiment 1
Raw material by following weight parts is made mill base:
2,546 15 parts of aqueous polyurethane resins, 2,651 10 parts of aqueous polyurethane resins, 2,601 7 parts of aqueous polyurethane resins, 1.2 parts of titanium dioxides, 1 part of carbon black, 5.7 parts of iron oxide yellows, 1.5 parts of phthalocyanine blues, dark green 5,319 2.1 parts of phthalein, dark green 5,340 2 parts of phthalein, 12 parts of talcum powder, 2 parts of silica powders, 5 parts in barium sulfate, 5 parts in lime carbonate, 2 parts of matting agents, 5,027 0.8 parts of dispersion agents, 5,040 0.7 parts of dispersion agents, 0.5 part of flow agent, 1 part of sticking power promotor, 1.5 parts of anti-settling agents, 1.2 parts of thickening materials, 1 part of mould inhibitor, 2 parts of frostproofers, 11.8 parts of deionized waters.
Embodiment 2
Raw material by following weight parts is made mill base:
254625 parts of aqueous polyurethane resins, 2,651 30 parts of aqueous polyurethane resins, 2,601 9 parts of aqueous polyurethane resins, 10 parts of titanium dioxides, 2 parts of carbon blacks, 12 parts of iron oxide yellows, 8 parts of phthalocyanine blues, dark green 5,319 10 parts of phthalein, dark green 5,340 10 parts of phthalein, 30 parts of talcum powder, 20 parts of silica powders, 11 parts in barium sulfate, 10 parts in lime carbonate, 12 parts of matting agents, 5,027 1.5 parts of dispersion agents, 5,040 0.5 parts of dispersion agents, 1 part of flow agent, 2 parts of sticking power promotors, 8 parts of anti-settling agents, 2 parts of thickening materials, 2 parts of mould inhibitors, 4 parts of frostproofers, 45 parts of deionized waters.
Embodiment 3
Raw material by following weight parts is made mill base:
2,546 50 parts of aqueous polyurethane resins, 2,651 45 parts of aqueous polyurethane resins, 2,601 22 parts of aqueous polyurethane resins, 10 parts of titanium dioxides, 2.5 parts of carbon blacks, 10 parts of iron oxide yellows, 10 parts of phthalocyanine blues, dark green 5,319 15 parts of phthalein, dark green 5,340 2 parts of phthalein, 16 parts of talcum powder, 4 parts of silica powders, 8 parts in barium sulfate, 5 parts in lime carbonate, 7 parts of matting agents, 5,027 5 parts of dispersion agents, 5,040 5 parts of dispersion agents, 2 parts of flow agents, 3 parts of sticking power promotors, 5 parts of anti-settling agents, 1.5 parts of thickening materials, 1.5 parts of mould inhibitors, 3 parts of frostproofers, 20 parts of deionized waters.
The making method of coating special for maintaining green blackboard of the present invention, it is made according to following method:
1) preparation mill base; (referring to embodiment 1-embodiment 3)
Its concrete steps are to take off the raw material of stating weight part:
Aqueous polyurethane resin 2546 6-60 parts, aqueous polyurethane resin 2651 6-60 parts, aqueous polyurethane resin 2601 6-60 parts, titanium dioxide 1-20 part, carbon black 0.1-2.5 part, iron oxide yellow 1-15 part, phthalocyanine blue 1-10 part, the dark green 5319 1-15 parts of phthalein, the dark green 5340 1-15 parts of phthalein, talcum powder 5-40 part, silica powder 5-30 part, barium sulfate 1-15 part, lime carbonate 1-15 part, matting agent 1-15 part, dispersion agent 5027 0.5-5 parts, dispersion agent 5040 0.5-5 parts, flow agent 0.1-2.5 part, sticking power promotor 0.1-3 part, anti-settling agent 1-10 part, thickening material 0.1-3 part, mould inhibitor 0.1-3 part, frostproofer 1-5 part, deionized water 5-45 part;
To stir after above-mentioned each raw material mixing, and the above-mentioned raw material that stirs is ground to pasty state;
2) preparation blender;
Its concrete steps are: take off the raw material of stating weight part: resin 30-60 part, and flow agent 3-8 part,
Frostproofer 8-15 part, deionized water 30-45 part; Wherein, resin is the aqueous polyurethane resin.
3) allotment coating: get above-mentioned mill base 75-90 part, blender 20-25 part by weight, be stirred into the coating of making predetermined viscosity, finished product.
Below in conjunction with embodiment, above-mentioned method is further described
Embodiment 4
1) preparation mill base; Referring to embodiment 1
Each raw material among the embodiment 1 is stirred after mixing, and the above-mentioned raw material that stirs is ground to pasty state;
2) preparation blender;
Its concrete steps are: take off the raw material of stating weight part: 40 parts of resins, 4 parts of flow agents, 10 parts of frostproofers, 30 parts of deionized waters;
3) allotment coating: get 80 parts of above-mentioned mill bases, 20 parts of blenders by weight, be stirred into the coating of making predetermined viscosity, finished product.
Add 10 parts in solidifying agent when coating is allocated in construction at the scene.Present embodiment carries out transformation and upgrade through the cement blackboard of totally 8 classes in 2 primary schools in Chongqing, has characteristics such as writing, easily wipe, be not reflective, non-slip after the coating.
Embodiment 5
1) preparation mill base; Referring to embodiment 2
Each raw material among the embodiment 2 is stirred after mixing, and the above-mentioned raw material that stirs is ground to pasty state;
2) preparation blender;
Its concrete steps are: take off the raw material of stating weight part: 50 parts of resins, 6 parts of flow agents, 10 parts of frostproofers, 40 parts of deionized waters;
3) allotment coating: get 80 parts of above-mentioned mill bases, 25 parts of blenders by weight, be stirred into the coating of making predetermined viscosity, finished product.
Add 5 parts in solidifying agent during construction allotment coating at the scene, present embodiment carries out transformation and upgrade through the blackboard of totally 40 classes in 3 middle schools of 2 primary schools in Chongqing, has characteristics such as writing, easily wipe, be not reflective, non-slip after the coating.
Embodiment 6
1) preparation mill base; Referring to embodiment 3
Each raw material among the embodiment 3 is stirred after mixing, and the above-mentioned raw material that stirs is ground to pasty state;
2) preparation blender;
Its concrete steps are: take off the raw material of stating weight part: 55 parts of resins, 4 parts of flow agents, 14 parts of frostproofers, 40 parts of deionized waters;
3) allotment coating: get 85 parts of above-mentioned mill bases, 20 parts of blenders by weight, be stirred into the coating of making predetermined viscosity, finished product.
Add 15 parts in solidifying agent when coating is allocated in construction at the scene.Present embodiment carries out transformation and upgrade through the blackboard in totally 60 classes of a plurality of schools in Chongqing, has characteristics such as writing, easily wipe, be not reflective, non-slip after the coating.
In summary, coating of the present invention can be used for various blackboards (comprising cement blackboard, frosted glass blackboard, wooden blackboard, steel blackboard), have characteristics such as writing, easily wipe, be not reflective, non-slip after the coating, long service life, long-term use does not damage student eyesight. Coating of the present invention not only can as the later maintenance of blackboard, also can be used for making new blackboard etc.
Obviously, those skilled in the art can carry out various changes and not break away from spiritual scope of the present invention prescription of the present invention. If therefore these changes belong in claims of the present invention and the equivalent technologies scope thereof, then the present invention also is intended to contain these changes.
Claims (2)
1. the making method of a coating special for maintaining green blackboard is characterized in that, it is made according to following method:
1) preparation mill base;
Its concrete steps are to take off the raw material of stating weight part:
Aqueous polyurethane resin 25466-60 part, aqueous polyurethane resin 26516-60 part, aqueous polyurethane resin 26016-60 part, titanium dioxide 1-20 part, carbon black 0.1-2.5 part, iron oxide yellow 1-15 part, phthalocyanine blue 1-10 part, the dark green 53191-15 part of phthalein, the dark green 53401-15 part of phthalein, talcum powder 5-40 part, silica powder 5-30 part, barium sulfate 1-15 part, lime carbonate 1-15 part, matting agent 1-15 part, dispersion agent 50270.5-5 part, dispersion agent 50400.5-5 part, flow agent 0.1-2.5 part, sticking power promotor 0.1-3 part, anti-settling agent 1-10 part, thickening material 0.1-3 part, mould inhibitor 0.1-3 part, frostproofer 1-5 part, deionized water 5-45 part; To stir after above-mentioned each raw material mixing, and the above-mentioned raw material that stirs is ground to pasty state;
2) preparation blender;
Its concrete steps are: take off the raw material of stating weight part: resin 6-60 part, flow agent 0.1-2.5 part, frostproofer 1-5 part, deionized water 5-45 part;
3) allotment coating: get above-mentioned mill base 75-90 part, blender 10-25 part by weight, be stirred into the coating of making predetermined viscosity, finished product.
2. a color paste for green blackboard coating is characterized in that, is made by the raw material of following weight parts:
Aqueous polyurethane resin 25466-60 part, aqueous polyurethane resin 26516-60 part, aqueous polyurethane resin 26016-60 part, titanium dioxide 1-20 part, carbon black 0.1-2.5 part, iron oxide yellow 1-15 part, phthalocyanine blue 1-10 part, the dark green 53191-15 part of phthalein, the dark green 53401-15 part of phthalein, talcum powder 5-40 part, silica powder 5-30 part, barium sulfate 1-15 part, lime carbonate 1-15 part, matting agent 1-15 part, dispersion agent 50270.5-5 part, dispersion agent 50400.5-5 part, flow agent 0.1-2.5 part, sticking power promotor 0.1-3 part, anti-settling agent 1-10 part, thickening material 0.1-3 part, mould inhibitor 0.1-3 part, frostproofer 1-5 part, deionized water 5-45 part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102658950A CN101712843B (en) | 2009-12-29 | 2009-12-29 | Color paste for environment-friendly blackboard coating and preparation method of special maintenance coating for environment-friendly blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102658950A CN101712843B (en) | 2009-12-29 | 2009-12-29 | Color paste for environment-friendly blackboard coating and preparation method of special maintenance coating for environment-friendly blackboard |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101712843A true CN101712843A (en) | 2010-05-26 |
| CN101712843B CN101712843B (en) | 2010-12-15 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108248A (en) * | 2011-01-07 | 2011-06-29 | 谢立华 | Preparation method of water-based environment-friendly silver gray low-light paint for writing board and color paste of paint |
| CN102533066A (en) * | 2011-01-07 | 2012-07-04 | 谢立华 | Manufacturing method of silver gray matt projection/writing board and manufacturing method of baking coating thereof |
| CN103254749A (en) * | 2013-04-26 | 2013-08-21 | 景宁畲族自治县富利达木制工艺品有限公司 | Water-based blackboard paint |
| CN104139645A (en) * | 2014-08-04 | 2014-11-12 | 石家庄科达文教用品有限公司 | Stoving varnish writing board and preparing method for stoving varnish writing board |
| CN109017053A (en) * | 2018-07-18 | 2018-12-18 | 王小兰 | A kind of blackboard maintenance process |
| CN112452238A (en) * | 2020-12-09 | 2021-03-09 | 佛山市卓天自动化科技有限公司 | Color paste mixing machine |
-
2009
- 2009-12-29 CN CN2009102658950A patent/CN101712843B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102108248A (en) * | 2011-01-07 | 2011-06-29 | 谢立华 | Preparation method of water-based environment-friendly silver gray low-light paint for writing board and color paste of paint |
| CN102533066A (en) * | 2011-01-07 | 2012-07-04 | 谢立华 | Manufacturing method of silver gray matt projection/writing board and manufacturing method of baking coating thereof |
| CN102533066B (en) * | 2011-01-07 | 2013-01-02 | 谢立华 | Manufacturing method of silver gray matt projection/writing board and manufacturing method of baking coating thereof |
| CN103254749A (en) * | 2013-04-26 | 2013-08-21 | 景宁畲族自治县富利达木制工艺品有限公司 | Water-based blackboard paint |
| CN103254749B (en) * | 2013-04-26 | 2015-07-15 | 景宁畲族自治县富利达木制工艺品有限公司 | Water-based blackboard paint |
| CN104139645A (en) * | 2014-08-04 | 2014-11-12 | 石家庄科达文教用品有限公司 | Stoving varnish writing board and preparing method for stoving varnish writing board |
| CN104139645B (en) * | 2014-08-04 | 2015-11-25 | 石家庄科达文教用品有限公司 | Baking vanish clipboard and preparation method thereof |
| CN109017053A (en) * | 2018-07-18 | 2018-12-18 | 王小兰 | A kind of blackboard maintenance process |
| CN112452238A (en) * | 2020-12-09 | 2021-03-09 | 佛山市卓天自动化科技有限公司 | Color paste mixing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101712843B (en) | 2010-12-15 |
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