CN114381170A - Flexible oil painting stick and preparation method thereof - Google Patents
Flexible oil painting stick and preparation method thereof Download PDFInfo
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- CN114381170A CN114381170A CN202111625576.3A CN202111625576A CN114381170A CN 114381170 A CN114381170 A CN 114381170A CN 202111625576 A CN202111625576 A CN 202111625576A CN 114381170 A CN114381170 A CN 114381170A
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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
- C09D13/00—Pencil-leads; Crayon compositions; Chalk compositions
Abstract
The invention relates to a flexible oil painting stick and a preparation method thereof. The soft oil painting stick comprises, by weight, 15-40 parts of composite wax, 10-30 parts of vegetable oil, 40-60 parts of filler and 3-15 parts of pigment. Wherein the composite wax comprises 5-25 parts of soft wax, 1-15 parts of hard wax and 3-20 parts of emulsifier. The soft oil painting stick paintings have the characteristics of gorgeous color and smooth hand feeling, are strong in painting tinting strength, good in spreadability and excellent in color overlapping performance on paper, are more exquisite in color compared with common oil painting sticks, have stronger adhesive force, can obtain thicker coatings during painting, and enhance the stereoscopic impression and texture of the painting. Meanwhile, the formula of the paint does not contain organic solvents, has low VOC, is environment-friendly, safe and nontoxic, and has high safety.
Description
Technical Field
The invention relates to a flexible oil painting stick and a preparation method thereof, the formula does not contain organic solvent, the VOC is low, the environment is protected, the safety is realized, the toxicity is avoided, in addition, the materials in the production process can be recycled and re-melted for use, the recycling value is high, and the economic effect is obvious. The painting has the characteristics of bright color and smooth hand feeling, and has strong painting tinting strength, good spreadability and excellent color-overlapping performance on paper.
Background
The oil painting stick is an oily color painting pigment, has the characteristics of fine and smooth hand feeling, good spreadability, color overlapping, excellent color mixing performance, bright color and the like, has a certain thickness, has strong adhesive force and covering power on a paper surface, has texture, can fully show the oil painting effect, and meets various painting technical difficulty requirements. However, the traditional oil painting stick generally adopts an oil system consisting of wax, mineral oil, fillers and pigments, the texture is slightly softer compared with a crayon, but the picture hand feeling is still harder, so that the coating thickness can not be obviously increased by repeated coating, the thickness of the picture is difficult to be increased in the process of drawing by using the oil painting stick, and the stereoscopic impression of the oil painting cannot be fully reflected.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a soft oil painting stick and a manufacturing method thereof.
According to the invention, soft wax with soft texture and hard wax with hard texture are selected for combination, vegetable oil is added to enhance the adhesive force, meanwhile, the smoothness of painting is ensured by adding an emulsifier, and the addition amount of the filler is adjusted to develop the soft oil painting stick with a brand-new formula system.
The invention also ensures the integral color uniformity of the soft oil painting stick through a special manufacturing process of an intermediate product, heats, mixes and disperses the wax and the emulsifier to synthesize a novel composite wax, and then mixes, disperses and grinds the pigment and the composite wax to obtain more uniform pigment distribution in the finished oil painting stick, so that the painting feel is more exquisite and the color is more gorgeous.
The invention provides a flexible oil painting stick which comprises composite wax, vegetable oil, a filler and an environment-friendly pigment.
Further, the soft oil painting stick comprises the following components in parts by weight: 15-40 parts of composite wax, preferably 25-35 parts; 10-30 parts of vegetable oil and fat, preferably 15-25 parts; 40-60 parts of filler, preferably 40-55 parts; 3-15 parts of environment-friendly pigment, preferably 5-10 parts.
Further, the composite wax includes a soft wax, a hard wax, and an emulsifier.
Further, the composite wax comprises the following components in parts by weight: 5-25 parts of soft wax, preferably 10-20 parts; 1-15 parts of hard wax, preferably 5-10 parts; 3-20 parts of emulsifier, preferably 5-15 parts.
Further, the vegetable oil and fat is selected from one or more of olive oil, coconut oil, castor oil, cottonseed oil, soybean oil, sesame oil, almond oil, peanut oil, corn oil, rice bran oil, linseed oil, tea seed oil, sea buckthorn oil, avocado oil, stone chestnut oil, macadamia nut oil, walnut oil, cocoa butter and the like, preferably coconut oil, castor oil, cottonseed oil, soybean oil, linseed oil, tea seed oil, and more preferably coconut oil, castor oil, linseed oil, tea seed oil.
The filler is one or more selected from calcium carbonate, kaolin, talc, white carbon, aluminum silicate, aluminum hydroxide, calcium hydroxide, barium sulfate, and the like, preferably calcium carbonate, kaolin, talc, white carbon, and barium sulfate, and more preferably calcium carbonate, kaolin, and white carbon.
Further, the soft wax is selected from one or more of paraffin wax, beeswax, microcrystalline wax, insect-white wax, japan wax, wool wax, flax wax, and the like, preferably paraffin wax, beeswax, microcrystalline wax, insect-white wax, japan wax, and more preferably paraffin wax, beeswax, and microcrystalline wax.
Further, the hard wax is selected from one or more of montan wax, wood wax, carnauba wax, candelilla wax, fischer-tropsch wax, polyethylene wax, polypropylene wax, ethylene-vinyl acetate copolymer wax, oxidized polyethylene wax, and the like, and is preferably wood wax, carnauba wax, candelilla wax, fischer-tropsch wax, polyethylene wax, and more preferably carnauba wax, polyethylene wax, fischer-tropsch wax.
Further, the emulsifier is selected from one or more of glyceryl monostearate, glyceryl distearate, fatty glyceride, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan monooleate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan trioleate, and the like, and is preferably glyceryl monostearate, glyceryl distearate, fatty glyceride, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan monooleate, fatty glyceride, polyoxyethylene sorbitan trioleate, and more preferably glyceryl monostearate, glyceryl distearate, polyoxyethylene sorbitan trioleate, and the like, Sorbitan monooleate, polyoxyethylene sorbitan trioleate.
Further, the environment-friendly pigment comprises at least one color environment-friendly pigment with the content of harmful substances meeting the European Union EN71-3 standard.
On the other hand, the invention provides a preparation method of the soft oil painting stick, which comprises the following steps:
step (a): weighing 15-40 parts by weight of composite wax, slowly adding 3-15 parts by weight of environment-friendly pigment under the condition of heating and stirring after melting, and fully stirring to obtain a uniform mixture a;
step (b): grinding the uniform mixture a obtained in the step (a) into a fine-particle solid to obtain a grinding intermediate product b;
step (c): heating the ground intermediate product b obtained in the step (b) to be completely melted, slowly and uniformly adding 10-30 parts by weight of vegetable fat and 40-60 parts by weight of filler under stirring, and continuously stirring until no visible agglomerates exist in a uniform liquid slurry state to obtain a uniform mixture c;
step (d): and (c) molding the uniform mixture c obtained in the step (c) to obtain the flexible oil painting stick.
Further, the composite wax in the step (a) is prepared by mixing and heating 5-25 parts by weight of soft wax, 1-15 parts by weight of hard wax and 3-20 parts by weight of emulsifier for melting, stirring and dispersing until the mixture is completely and uniformly mixed.
Further, the melting temperature of the composite wax is 80-110 ℃, preferably 90-100 ℃; the melting time is 60-120min, preferably 70-100 min.
Further, the heating temperature in the step (a) is 70-100 ℃, preferably 80-90 ℃, and the stirring time is 30-60 minutes, preferably 40-50 minutes;
heating the fine-grained grinding intermediate product b in the step (c) at 70-90 ℃, preferably 80-85 ℃, and stirring for 30-60min, preferably 40-50 min;
the shaping process of the above step (d) comprises a cooling step at a cooling temperature of 5 to 25 deg.C, preferably 10 to 15 deg.C.
Further, the particle fineness of the ground intermediate b in the above step (b) is 3 to 70 μm, preferably 5 to 50 μm.
The soft oil painting stick obtained by the invention has the following advantages:
1. compared with the prior market competitive products, the soft oil painting stick of the invention is obviously softer, the painting has the characteristics of gorgeous color and smooth hand feeling, the painting coloring power on paper is strong, the spreadability is good, the color folding performance is excellent, the color is more exquisite compared with the common oil painting stick, the painting stick has stronger adhesive force, a thicker coating is obtained during painting, and the stereoscopic impression and the texture of the painting are enhanced.
2. The content of various harmful substances in the environment-friendly pigment used by the flexible oil painting stick meets the EN71 standard of European Union, and the content of substances harmful to human health, such as heavy metals, is far lower than the international limit standard.
3. The formula of the flexible oil painting stick disclosed by the invention does not contain an organic solvent, is low in VOC (volatile organic compounds), is environment-friendly, safe and nontoxic, can recycle materials in the production process for re-melting use, and has high recycling value and obvious economic effect.
Detailed Description
The technical solution of the present invention is further explained below according to specific embodiments. The scope of protection of the invention is not limited to the following examples, which are set forth for illustrative purposes only and are not intended to limit the invention in any way.
A soft oil painting stick comprises, by weight, 15-40 parts of composite wax, 10-30 parts of vegetable oil, 40-60 parts of filler and 3-15 parts of pigment. Wherein the composite wax comprises 5-25 parts of soft wax, 1-15 parts of hard wax and 3-20 parts of emulsifier.
Wherein, compound wax includes: 5-25 parts of soft wax, preferably 10-20 parts; 1-15 parts of hard wax, preferably 5-10 parts; 3-20 parts of emulsifier, preferably 5-15 parts.
The soft wax plays a role in enhancing the softness of the oil painting stick in the system, is selected from one or more of paraffin wax, beeswax, microcrystalline wax, insect white wax, Japan wax, wool wax, flax wax and the like, is preferably paraffin wax, beeswax, microcrystalline wax and insect white wax, and is more preferably paraffin wax, beeswax and microcrystalline wax.
The hard wax plays a role in ensuring the hardness of the oil painting stick and preventing the oil painting stick from being broken easily in the painting process, is selected from one or more of montan wax, wood wax, carnauba wax, candelilla wax, Fischer-Tropsch wax, polyethylene wax, polypropylene wax, ethylene-vinyl acetate copolymer wax, oxidized polyethylene wax and the like, is preferably carnauba wax, candelilla wax, Fischer-Tropsch wax and polyethylene wax, and is more preferably carnauba wax, candelilla wax and Fischer-Tropsch wax.
The emulsifier plays a role in blending the system uniformly and enhancing the painting lubricity, is selected from one or more of glyceryl monostearate, glyceryl distearate, fatty glyceride, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan monooleate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan trioleate and the like, is preferably glyceryl monostearate, glyceryl distearate, fatty glyceride, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate and sorbitan monooleate, and is more preferably glyceryl monostearate, glyceryl distearate, sorbitan monopalmitate, sorbitan monostearate and sorbitan monooleate, Fatty acid glycerides.
The soft wax, the hard wax and the emulsifier are heated, mixed and dispersed to synthesize a novel composite wax, and then the pigment and the composite wax are mixed, dispersed and ground to obtain more uniform pigment distribution in a finished product oil painting stick, so that the painting feel is more exquisite and the color is more gorgeous; in one embodiment, 12 parts by weight of paraffin wax, 3 parts by weight of Fischer-Tropsch wax, 5 parts by weight of polyethylene wax and 10 parts by weight of glyceryl monostearate are melted and dispersed to form the novel composite wax, and then 5 parts by weight of pigment orange 16 and the composite wax are mixed, ground and dispersed, so that the pigment dispersibility can be obviously improved to obtain more gorgeous colors.
The vegetable oil and fat plays a role in enhancing the adhesion in the system, is selected from one or more of olive oil, coconut oil, castor oil, cottonseed oil, soybean oil, sesame oil, almond oil, peanut oil, corn oil, rice bran oil, linseed oil, tea seed oil, sea buckthorn oil, avocado oil, stone chestnut oil, European nut oil, walnut oil, cocoa oil and the like, is preferably coconut oil, castor oil, cottonseed oil, soybean oil, linseed oil and tea seed oil, and is more preferably coconut oil, castor oil, linseed oil and tea seed oil. In one embodiment, the castor oil is used to replace white oil used by a common oil painting stick, so that the adhesion force of the painting of the finished oil painting stick on the medium can be obviously increased.
The filler plays a role of a supporting structure skeleton in a system, is selected from one or more of calcium carbonate, kaolin, talcum powder, white carbon black, aluminum silicate, aluminum hydroxide, calcium hydroxide, barium sulfate and the like, is preferably calcium carbonate, kaolin, talcum powder and white carbon black, and is more preferably calcium carbonate, kaolin and talcum powder.
The formula of the flexible oil painting stick disclosed by the invention does not contain an organic solvent, is low in VOC (volatile organic compounds), environment-friendly, safe and nontoxic, and materials in the production process can be recycled and re-melted for use, so that the recycling value is high, and the economic effect is obvious. The painting has the characteristics of bright color and smooth hand feeling, and has strong painting tinting strength, good spreadability and excellent color-overlapping performance on paper.
The flexible oil painting stick of the invention can be prepared by the following method:
step (a): weighing 15-40 parts by weight of composite wax, slowly adding 3-15 parts by weight of environment-friendly pigment under the condition of heating and stirring after melting, and fully stirring to obtain a uniform mixture a;
step (b): grinding the uniform mixture a obtained in the step (a) into a fine-particle solid to obtain a grinding intermediate product b;
step (c): heating the ground intermediate product b obtained in the step (b) to be completely melted, slowly and uniformly adding 10-30 parts by weight of vegetable fat and 40-60 parts by weight of filler under stirring, and continuously stirring until no visible agglomerates exist in a uniform liquid slurry state to obtain a uniform mixture c;
step (d): and (c) molding the uniform mixture c obtained in the step (c) to obtain the flexible oil painting stick.
The present invention will be described in further detail with reference to examples.
Examples
Example 1:
mixing, melting and dispersing 12 parts by weight of paraffin (CAS No.64742-51-4, New Material science and technology Limited of Nanjing Tianshi), 3 parts by weight of Fischer-Tropsch wax (CAS No.768-08-1, New Material science and technology Limited of Shandong Denuo), 5 parts by weight of polyethylene wax (CAS No.9002-88-4, New Material science and technology Limited of Nanjing Tianshi), 10 parts by weight of glyceryl monostearate (CAS No.123-94-4, New Star oil and fat Limited of Shenzhou), fully stirring for 80min, and uniformly mixing to obtain composite wax;
slowly adding 5 parts by weight of environment-friendly pigment orange 16 (CAS No.6505-28-8) into the composite wax obtained in the above step under the condition of heating and stirring, and fully stirring for 40min at 80 ℃ to obtain a uniform mixture;
grinding the obtained uniform mixture by a three-roll grinder into fine-particle solid with the size of 20-40 mu m;
heating the fine granular solid obtained in the above step to 85 ℃ to completely melt the solid, slowly and uniformly adding 20 parts by weight of castor oil (Weifang Zhenghua chemical Co., Ltd., CAS No.8001-78-3), 20 parts by weight of calcium carbonate (1250 mesh, Shanghai Yangjiang chemical Co., Ltd., CAS No.471-34-1), 30 parts by weight of kaolin (1250 mesh, Shanghai Yangjiang chemical Co., Ltd., CAS No.1332-58-7) under stirring, and continuously stirring for 50min to obtain a uniform liquid slurry mixture without visible agglomerates;
and (3) carrying out a forming process on the obtained uniform mixture to obtain the soft oil painting stick, wherein the cooling temperature is 15 ℃ during forming.
Example 2:
mixing, melting and dispersing 12 parts by weight of beeswax (Hebei Xushi beeswax Co., Ltd., CAS No.8006-40-4), 4 parts by weight of polyethylene wax (Nanjing Tianshi New Material science and technology Co., Ltd., CAS No.9002-88-4), 2 parts by weight of microcrystalline wax (Hebei Xushi beeswax Co., Ltd., CAS No.67742-51-2) and 5 parts by weight of distearin (Shenzhou Xinxing grease Co., Ltd., CAS No.1323-83-7) at 80 ℃, and stirring for 80min to obtain a composite wax;
slowly adding 8 parts by weight of environment-friendly pigment violet 19 (yellow phase) (CAS No.1047-16-1 of Shanghai Kaiyin chemical Co., Ltd.) into the composite wax obtained in the step under the condition of heating and stirring, and fully stirring for 45min at 85 ℃ to obtain a uniform mixture after the mixture is uniform;
grinding the obtained uniform mixture by a three-roll grinder into fine-particle solid with the size of 20-40 mu m;
heating the fine granular solid obtained in the above step to 80 ℃ to completely melt the fine granular solid, slowly and uniformly adding 21 parts by weight of coconut oil (CAS No.8001-31-8, available from Jinan Yeqing Biotech Co., Ltd.), 30 parts by weight of calcium carbonate (1250 mesh, Shanghai river chemical Co., Ltd.), CAS No.471-34-1) and 18 parts by weight of kaolin (1250 mesh, available from Shanghai river chemical Co., Ltd., CAS No.1332-58-7) under stirring, and continuously stirring for 50min to obtain a uniform liquid slurry mixture without visible agglomerates;
and (3) carrying out a forming process on the obtained uniform mixture to obtain the soft oil painting stick, wherein the cooling temperature is 17 ℃ during forming.
Example 3:
mixing, melting and dispersing 15 parts by weight of microcrystalline wax (Hebei Xushi beeswax Co., Ltd., CAS No.67742-51-2), 2 parts by weight of beeswax (Hebei Xushi beeswax Co., Ltd., CAS No.8006-40-4), 5 parts by weight of polyethylene wax (Nanjing Tianshi New Material science and technology Co., Ltd., CAS No.9002-88-4) and 8 parts by weight of sorbitan monooleate (ZiboHaijie chemical Co., Ltd., CAS No.9005-65-6) at the melting temperature of 100 ℃, and fully stirring for 80min to obtain the composite wax;
slowly adding 3 parts by weight of environment-friendly pigment carbon black (CAS No.1333-86-4 of Shanghai Kaiyin chemical Co., Ltd.) into the composite wax obtained in the above step under the condition of heating and stirring, and fully stirring for 45min at 85 ℃ to obtain a uniform mixture after uniform stirring;
grinding the obtained uniform mixture by a three-roll grinder into fine-particle solid with the size of 20-40 mu m;
heating the fine granular solid obtained in the above step to 83 ℃ to completely melt the solid, slowly and uniformly adding 22 parts by weight of linseed oil (CAS No.8001-26-1, available from Shanxi Xin Biotech Co., Ltd.), 15 parts by weight of calcium carbonate (1250 mesh, Shanghai Jiang chemical Co., Ltd.), 30 parts by weight of kaolin (1250 mesh, Shanghai Jiang chemical Co., Ltd., CAS No.1332-58-7) under stirring, and continuously stirring for 50min to obtain a uniform liquid slurry mixture without visible agglomerates;
and (3) carrying out a forming process on the obtained uniform mixture to obtain the soft oil painting stick, wherein the cooling temperature is 17 ℃ during forming.
Example 4:
mixing, melting and dispersing 18 parts by weight of beeswax (Hebei Xushi beeswax Co., Ltd., CAS No.8006-40-4), 5 parts by weight of carnauba wax (Jinhui Kawakawa chemical Co., Ltd., CAS No.8015-86-9) and 9 parts by weight of polyoxyethylene sorbitan trioleate (Zibojie chemical Co., Ltd., CAS No.9005-70-3) at the melting temperature of 100 ℃, fully stirring for 80min, and uniformly mixing to obtain the composite wax;
slowly adding 5 parts by weight of environment-friendly pigment phthalocyanine blue (CAS No.2429-74-5) into the composite wax obtained in the step under the condition of heating and stirring, fully stirring for 50min at 85 ℃, and uniformly mixing to obtain a uniform mixture;
grinding the obtained uniform mixture by a three-roll grinder into fine-particle solid with the size of 20-40 mu m;
heating the fine granular solid obtained in the above step to 85 ℃ to completely melt the fine granular solid, slowly and uniformly adding 20 parts by weight of tea seed oil (CAS No.68917-75-9, New materials Co., Ltd., Shandong Naoyang), 40 parts by weight of kaolin (1250 mesh, Shanghai Yangjiang chemical Co., Ltd., CAS No.1332-58-7) and 3 parts by weight of white carbon black (1000 mesh, Shanghai Yangjiang chemical Co., Ltd., CAS No.60676-86-0) under stirring, and continuously stirring for 60min to obtain a uniform liquid slurry mixture without visible agglomerates;
and (3) carrying out a forming process on the obtained uniform mixture to obtain the soft oil painting stick, wherein the cooling temperature is 15 ℃ during forming.
In addition to the above examples, the present invention also provides a competitive product 1 (dueli brand hexagonal oil painting stick, model 6964), a competitive product 2 (makkai brand hexagonal oil painting stick, model 1100) and a competitive product 3 (true color brand hexagonal oil painting stick, model 2966) on the market as comparative examples 1 to 3 to illustrate the effects of the present invention.
In the experiment, the oil painting sticks of examples 1 to 4 and the oil painting sticks of comparative examples 1 to 3 were evaluated by hardness, breaking strength, tinting strength, drawing property, and feeling of heaviness tests, and the test results are shown in Table 1.
The hardness test adopts a Brinell hardness tester for testing, the oil painting stick is placed on an instrument test board after being sliced, and the maximum value is read after the test is started until the value is stable.
The fracture resistance determination method refers to QB/T2586-.
The tinting strength test is performed by painting various surfaces of paper, skin, cloth, plastics, glass, marble, metal and the like with a sample, and scoring the tinting strength (A-C):
a: the surface of each medium can be painted and colored, and the coloring power is good;
b: the color is easy to be colored on the rough surfaces of paper surfaces, cloth and the like, but is difficult to be colored on the smooth surfaces, and the color can be displayed only by repeatedly painting;
c: only the paper surface and the cloth can be painted and colored, and the other smooth surfaces cannot be colored.
The delineation test is performed by uniformly coating 50mm by 50mm size areas on a piece of sketch paper and scoring the delineation (a-C):
a: drawing fluency, and coating the sample with uniform color;
b: paint smoothly but with uneven paint color;
c: the paint was not smooth and the paint was not uniform in color.
The thick and heavy feeling test is to coat a sample with 50mm by 50mm area on a piece of sketch paper uniformly and fully, and to score the thick and heavy feeling from the three-dimensional effect of the picture and the visual thickness of the coating according to the sample (A-C):
a: the stereoscopic impression of the coating is strong, and the thickness of the coating is obvious;
b: the stereoscopic impression of the coating is general, and the thickness of the coating is not obvious;
c: the coating sample has no third dimension, and the coating is thin.
TABLE 1 evaluation of the Properties of the formulations
From the results shown in table 1, it can be seen that examples 1 to 4 of the present invention have significant advantages over the comparative example:
in terms of hardness, the hardness of the example of the invention is obviously lower than the test strength of the comparative example, and the hand feeling is soft;
in terms of tinting strength, the embodiment of the invention has stronger tinting strength than a comparative example, and can paint and color on various surfaces of paper, skin, cloth, plastics, glass, marble, metal and the like;
in terms of delineation, the embodiments of the present invention have better smoothness, color fineness and uniformity;
in terms of thick and heavy feeling, the coating thickness of the embodiment of the invention is obviously thicker than that of the comparative example, and can bring stronger stereoscopic impression to painting;
meanwhile, the breaking resistance of the materials meets the industrial requirements.
According to the test results, compared with the conventional oil painting stick on the market at present, the soft oil painting stick has more excellent performances including breaking resistance, tinting strength and delineation, and particularly has stronger substrate adhesive force compared with the common oil painting stick, so that a thicker coating can be obtained during painting, the stereoscopic impression and texture of painting are enhanced, and the painting pleasure and the professional degree are greatly increased.
It should be noted by those skilled in the art that the described embodiments of the present invention are merely exemplary and that various other substitutions, alterations, and modifications may be made within the scope of the present invention. Accordingly, the present invention is not limited to the above-described embodiments, but is only limited by the claims.
Claims (14)
1. A soft oil painting stick comprises composite wax, vegetable oil, filler and environment-friendly pigment.
2. The flexible oil painting stick of claim 1, comprising in parts by weight:
15-40 parts of the composite wax, preferably 25-35 parts;
10-30 parts of vegetable oil and fat, preferably 15-25 parts;
40-60 parts of the filler, preferably 40-55 parts;
3-15 parts of environment-friendly pigment, preferably 5-10 parts.
3. The flexible pastel of claim 2 wherein said composite wax comprises a soft wax, a hard wax and an emulsifier.
4. The flexible canvas stick of claim 3, wherein said composite wax comprises, in parts by weight:
5-25 parts of soft wax, preferably 10-20 parts;
1-15 parts of the hard wax, preferably 5-10 parts;
3-20 parts of emulsifier, preferably 5-15 parts.
5. The soft fat pastel according to any one of claims 1 to 4 wherein the vegetable fat is selected from one or more of olive oil, coconut oil, castor oil, cottonseed oil, soybean oil, sesame oil, almond oil, peanut oil, corn oil, rice bran oil, linseed oil, tea seed oil, sea buckthorn oil, avocado oil, shiitake oil, macadamia nut oil, walnut oil, cocoa butter and the like, preferably coconut oil, castor oil, cottonseed oil, soybean oil, linseed oil, tea seed oil, more preferably coconut oil, castor oil, linseed oil, tea seed oil.
6. The flexible pastel of any of claims 1 to 4 wherein the filler is selected from one or more of calcium carbonate, kaolin, talc, white carbon, aluminum silicate, aluminum hydroxide, calcium hydroxide, barium sulfate, and the like, preferably calcium carbonate, kaolin, talc, white carbon, barium sulfate, and more preferably calcium carbonate, kaolin, white carbon.
7. A flexible pastel as claimed in claim 3 or 4 wherein the soft wax is selected from one or more of paraffin wax, beeswax, microcrystalline wax, insect wax, Japan wax, wool wax, flax wax and the like, preferably paraffin wax, beeswax, microcrystalline wax, insect wax, Japan wax, more preferably paraffin wax, beeswax, microcrystalline wax.
8. A soft pastel as claimed in claim 3 or claim 4 wherein the hard wax is selected from one or more of montan wax, wood wax, carnauba wax, candelilla wax, Fischer-Tropsch wax, polyethylene wax, polypropylene wax, ethylene vinyl acetate copolymer wax, oxidized polyethylene wax and the like, preferably wood wax, carnauba wax, candelilla wax, Fischer-Tropsch wax, polyethylene wax, more preferably carnauba wax, polyethylene wax, Fischer-Tropsch wax.
9. The soft oil pastel as defined in claim 3 or 4 wherein the emulsifier is selected from one or more of glyceryl monostearate, glyceryl distearate, glyceryl fatty acid ester, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan monooleate, polyoxyethylene sorbitan monopalmitate, polyoxyethylene sorbitan monostearate, polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan trioleate and the like, preferably glyceryl monostearate, glyceryl distearate, glyceryl monostearate, glyceryl fatty acid ester, sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, sorbitan monooleate, glyceryl sorbitan monooleate, polyoxyethylene sorbitan trioleate, more preferably glyceryl monostearate, glyceryl distearate, sorbitan monooleate, and polyoxyethylene sorbitan trioleate.
10. A preparation method of a soft oil painting stick comprises the following steps:
step (a): weighing 15-40 parts by weight of composite wax, slowly adding 3-15 parts by weight of environment-friendly pigment under the condition of heating and stirring after melting, and fully stirring to obtain a uniform mixture a;
step (b): grinding the uniform mixture a obtained in the step (a) into a fine-particle solid to obtain a grinding intermediate product b;
step (c): heating the ground intermediate product b obtained in the step (b) to be completely melted, slowly and uniformly adding 10-30 parts by weight of vegetable fat and 40-60 parts by weight of filler under stirring, and continuously stirring until no visible agglomerates exist in a uniform liquid slurry state to obtain a uniform mixture c;
step (d): and (c) molding the uniform mixture c obtained in the step (c) to obtain the flexible oil painting stick.
11. The method of claim 10, wherein the compounded wax in the step (a) is prepared by mixing 5 to 25 parts by weight of soft wax, 1 to 15 parts by weight of hard wax and 3 to 20 parts by weight of emulsifier, heating to melt, stirring and dispersing until completely mixed uniformly.
12. The method of claim 11, wherein the melting temperature is 80-110 ℃, preferably 90-100 ℃; the melting time is 60-120min, preferably 70-100 min.
13. The method according to claim 10,
the heating temperature in the step (a) is 70-100 ℃, preferably 80-90 ℃, and the stirring time is 30-60 minutes, preferably 40-50 minutes;
the heating temperature of the fine grained grinding intermediate product b in the step (c) is 70-90 ℃, preferably 80-85 ℃, and the stirring time is 30-60min, preferably 40-50 min;
said shaping of said step (d) comprises a cooling step at a cooling temperature of 5-25 ℃, preferably 10-15 ℃.
14. The process according to claim 10, wherein the particle fineness of the ground intermediate b in the step (b) is 3 to 70 μm, preferably 5 to 50 μm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116855133A (en) * | 2023-05-17 | 2023-10-10 | 广州美术学院 | Pure natural soybean crayon and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116855133A (en) * | 2023-05-17 | 2023-10-10 | 广州美术学院 | Pure natural soybean crayon and preparation method thereof |
| CN116855133B (en) * | 2023-05-17 | 2024-04-16 | 广州美术学院 | Pure natural soybean crayon and preparation method thereof |
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