Water-soluble solid oil paint product and preparation method thereof

Abstract

The invention discloses a water-soluble solid oil paint product and a preparation method, selected raw materials comprise a binder, pigment powder and various auxiliaries, selected equipment comprises a dispersion machine and a forming machine, the product is moderate in hardness, sufficient in oiliness, large in painting area, fine and smooth in hand feeling and good in color mixing property, and has the oil paint shaping capacity and the water-soluble solid oil paint. After being diluted by water, the paint also has a watercolor rendering effect. The water is easy to clean, and is suitable for users of all ages.

Description

Technical Field

[0001] This invention belongs to the field of oil paint products and preparation technology, specifically a water-soluble solid oil paint product and preparation method. Background Technology

[0002] Water-soluble solid oil paint is a stick-shaped art material made from a mixture of pigment powder, oil, wax, and additives. Adjusting the proportions of each component ensures the water-soluble solid oil paint has a suitable hardness and softness, achieving optimal color development, shaping, and water solubility. During production, the temperature of the reaction vessel is precisely controlled to ensure the raw materials are fully melted and mixed, maximizing the properties of each component. Strict control over the production process, including molding time and the duration of cooling water flow, is maintained throughout the molding process. High-purity pigments are used to produce vibrant colors, making it more visually appealing. Currently, stick-shaped painting materials available in the domestic market include oil pastels, pastel pastels, and crayons. However, pastel pastels are easily broken and have poor adhesion to substrates. Crayons and watercolors cover small areas and are easily broken or damaged by children who don't know their own strength. Most other oil pastel painting materials lack a smooth feel, and their color mixing performance needs improvement. Furthermore, most of these products are targeted at the children's market. To address this issue, we developed a water-soluble solid oil paint that is smooth to the touch, spreads easily, mixes well, and combines the techniques of oil painting and watercolor. This product has a moderate hardness, sufficient oil content, a large coverage area, a smooth texture, good color mixing, and possesses the shaping ability of oil paint while also exhibiting the rendering effect of watercolor when diluted with water. It is easy to clean with water and suitable for users of all ages. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide a water-soluble solid oil paint product and its preparation method. Through research and experimentation, it was found that surface oil seepage occurs during the drying process of water-soluble solid oil paints, mainly due to the type of rheology modifiers (hydrogenated castor oil, beeswax, stearic acid, etc.) and the oil-to-powder ratio. Therefore, research on rheology modifiers and the oil-to-powder ratio for oil paints was necessary. Ultimately, glyceryl monostearate was successfully applied to the formulation of oil paints. Analysis shows that glyceryl monostearate is a white or pale yellow waxy solid with the molecular formula C21H4. 2O4, with a relative molecular mass of 35.57, mp 56-58℃, and a relative density of 0.97, is non-toxic to the human body and has good emulsifying properties. It can make the components in oil paint form a uniformly mixed dispersion system, reduce the viscosity of the system, make the paint soft and elastic, and improve its plasticity. Polyoxyethylene (20) dehydrated sorbitan monolaurate and sorbitan anhydride monolaurate are used as emulsifiers to make solid oil paint water-soluble. Highly active iron complexes are used as drying agents, and very small amounts can show excellent performance. Compared with cobalt-based drying agents, it has significant improvements in drying activity, color, gloss and haze. It also shows excellent drying performance under unfavorable drying conditions.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: raw materials include binders, pigment powders, and various additives; equipment includes a disperser and a molding machine; and the preparation steps are as follows:

[0005] (1) Add pigment powder, fillers, and various additives to the disperser according to the formula ratio. During the process, strictly control the speed of the disperser to form a good vortex. Determine the order of adding materials according to their properties. Disperse completely until the oil paint forms a smooth and beautiful surface and a delicate paste.

[0006] (2) The composition of oil paints in (1) is scientifically specified, and the number of times each color is ground and the pressure is adjusted so that the fineness and delicacy of the oil paints are consistent.

[0007] (3) Place wax, hydrogenated castor oil, glyceryl monostearate, and vegetable oil into a reaction vessel in a certain proportion and keep it warm to melt.

[0008] (4) Mix 2 and 3 in proportion and keep warm in the reactor to mix the components;

[0009] (5) Molding on a molding machine;

[0010] (6) Allow to dry for two weeks to allow the surface to fully form a skin. Label and package.

[0011] The beneficial effects of this invention are that by using glyceryl monostearate, the components in oil paint can form a uniformly dispersed system, reducing the system viscosity, making the paint soft and elastic, and improving its shaping ability. Using a highly active iron complex as a drying agent, excellent performance can be achieved with very small amounts. Compared with cobalt-based drying agents, it shows significant improvements in drying activity, color, gloss, and haze. It also exhibits excellent drying performance under unfavorable drying conditions. Specific embodiments are further illustrated in the following examples. Detailed Implementation

[0012] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0013] During the process, pigment powder, fillers, and various additives are placed into a disperser according to the formula ratio. The disperser speed is strictly controlled to create a good vortex. The order of material addition is determined based on the material properties to ensure complete dispersion, resulting in a smooth and beautiful surface and a fine paste-like texture for the oil paint. The composition of the oil paint is scientifically specified, and the number of grinding cycles and pressure adjustments for each color ensure consistent fineness and smoothness. Wax, hydrogenated castor oil, glyceryl monostearate, and vegetable oil are placed in a reaction vessel and melted under heat. Combinations 2 and 3 are mixed in a specific ratio and kept warm in the reaction vessel. The mixture is then molded on a molding machine and dried for two weeks to allow the surface to fully form a skin. Labeling and packaging follow.

Claims

1. A water-soluble solid oil paint product and its preparation method, characterized in that: The raw materials selected include binders, pigment powders, and various additives; the equipment selected includes dispersers and molding machines; and the preparation steps are as follows: (1) Add pigment powder, fillers, and various additives to the disperser according to the formula ratio. During the process, strictly control the speed of the disperser to form a good vortex. Determine the order of adding materials according to their properties. Disperse completely until the oil paint forms a smooth and beautiful surface and a delicate paste. (2) The composition of oil paints in (1) is scientifically specified, and the number of times each color is ground and the pressure is adjusted so that the fineness and delicacy of the oil paints are consistent. (3) Place wax, hydrogenated castor oil, glyceryl monostearate, and vegetable oil into a reaction vessel in a certain proportion and keep it warm to melt. (4) Mix 2 and 3 in proportion and keep warm in the reactor to mix the components; (5) Molding on a molding machine; (6) Allow to dry for two weeks to allow the surface to fully form a skin. Label and package.