JPH0372111B2 - - Google Patents

Description

Detailed Description of the Invention: This invention provides that when mixed with oil paint as western oil, the mixture becomes water-soluble, and stains on tools such as brushes and palettes used during drawing, hands, and clothes can be washed with water. It is related to a dissolved oil for oil paints that can be used to paint and form a solid screen after drying.

Oil paints are paste-like products made by kneading pigments and extender pigments with drying oil, and adding drying accelerators and consistency regulators as necessary, and are usually filled in tubes.

To draw with this, you can squeeze it out of the tube and apply it on a canvas or board, but generally you can use a solvent such as dissolved oil - turpentine or so-called petrol, or a drying oil such as walnut oil or poppy oil. or a mixture thereof, or diluted with a solution of resin, drying oil, and solvent called Bernis à Pendre.

If you use oil paints alone or in combination with dissolved oils, clean the tools used for drawing, such as brushes and palettes, as well as your hands and clothes, with turpentine, petrol, or so-called brushes. It has to be cleaned or wiped with a solvent such as a shoe cleaner, which poses problems such as the amount of work involved, the staining of the surrounding area, and economic efficiency.

This invention solves these problems, and a hydrophilic activator of the general formula () with an HLB of 16 to 20, H(CH ₂ CH ₂ O) n ₁ OA...() [A is or -R ₁ , R ₁ is an alkyl group having 8 to 12 carbon atoms,
_n1 is an integer from 40 to 120. _{[ B is} or -R ₂ , R ₂ is an alkyl group having 8 to 18 carbon atoms,
_n2 is an integer from 3 to 12. ] This relates to alicyclic hydrocarbon solvents or aliphatic hydrocarbon solvents with boiling points in the range of 150°C to 180°C, and solvent oils for oil paints containing water as an essential component.

The hydrophilic activator of the general formula () with an HLB of 16 to 20 used in this invention corresponds to polyoxyethylene alkyl ether or polyoxyethylene alkyl phenyl ether in chemical name. The number of carbon atoms in the group is 8 to 12, the average degree of polymerization of ethylene oxide is 40 to 100, and the average molecular weight
It belongs to 1200-3000. and Nonipol 400 (trade name, manufactured by Sanyo Chemical Industries, Ltd., nonyl phenyl ether type, n ₁ 40, HLB17.8) or Neugen ET190 (trade name, manufactured by Daiichi Kogyo Seiyaku Co., Ltd., lauryl ether type, n ₁₉₀ , HLB19), etc. are commercially available and easy to use.

The hydrophilic active agent preferably has an HLB of 17 to 19.

The lipophilic activator of the general formula () having an HLB of 6 to 11 used in this invention is polyoxyethylene alkyl ether or polyoxyethylene alkyl phenyl ether having the same chemical name as the former, and has an alkyl group. carbon number is 8 to 18, average degree of polymerization of ethylene oxide is 3 to 15, average molecular weight is 100
It belongs to ~500. and nonipole 45
(Trade name, manufactured by Sanyo Chemical Industries, Ltd., nonyl phenyl ether type, n ₂ 5, HLB8.9) or Neugen
ET80 (trade name, Daiichi Kogyo Seiyaku Co., Ltd., oleyl ether type, n ₂ 10, HLB8) is commercially available and easy to use.

The HLB of this lipophilic active agent is preferably 7 to 10.

The solvent used in this invention has a boiling point of 150°C to 180°C.
C alicyclic hydrocarbon solvents or aliphatic hydrocarbon solvents, examples of the former include α-pinene, turpentine, etc., and examples of the latter include N-decane or N-decane as a main component. Petroleum solvents are exemplified. As an example of the latter, White Sol manufactured by Nippon Oil Co., Ltd. can be used.

If necessary, use a drying oil such as walnut oil or poppy oil to increase the adhesion of the paint, or an oil-soluble resin such as dammar or copal to give the screen a gloss, or to accelerate the drying of the screen. For this purpose, metal soaps such as cobalt and manganese can be added.

To prepare the dissolved oil of this invention, the hydrophilic surfactant is used in an amount of 10 to 30%, preferably 15 to 25%, based on 100% by weight of the dissolved oil (hereinafter, % by weight is simply referred to as %). Generally, the larger the HLB, the smaller the amount, and the smaller the HLB, the larger the amount required, but if it is too much, the viscosity will be too high, and if it is too little, the water solubility will be poor.

Lipophilic active agent 10-30%, preferably 15-20%
Usually, the smaller the HLB, the smaller the amount, and the larger the HLB, the larger the amount needed, but too much will impair the fastness of the screen, and too little will make it difficult to mix with oil paint.

Solvent and water each 18-30%, preferably
20 to 25% is used; if it is too much, the transparency of the dissolved oil will be poor, and if it is too little, the viscosity will become too high.

When adding drying oil, it is desirable to add 10% or less.
If it is in excess, the water solubility during washing will deteriorate.

When adding resin, it is desirable to add 5% or less, and if it is in excess, the water solubility during washing will deteriorate. It is desirable to use a resin that has been prepared in advance as a solution of 50% or less in a drying oil or solvent.

When adding both the drying oil and the resin solution, it is desirable that their sum is 10% or less.

To prepare the dissolved oil of this invention, first, add the hydrophilic activator, lipophilic activator, and solvent into a stirrer equipped with a condenser in that order, raise the temperature to 60 ± 5°C with stirring, and then keep the temperature at the same temperature for another 10 minutes. Just keep stirring. While stirring this solution, add a predetermined amount of water and raise the temperature to 90±5°C. At the initial stage when water is added, it is in the form of a white lump, but as the temperature rises, it becomes transparent gel-like and then transparent liquid-like, and the process is completed.

When adding the drying oil or resin, add it when it becomes transparent and stir until it is uniformly dissolved.

Next, examples will be described to further clarify this invention.

Example 1 30 parts of Nonipol 400 20 parts of Noniball 45 25 parts of turpentine oil were stirred at 60°C for 10 minutes to dissolve them uniformly. Added 25 parts of water, raised the temperature to 90°C and continued stirring for 20 minutes to obtain a colorless and transparent viscosity of 18 CPS ( At 25°C) melted oil was obtained.

It was found that when 2 g of this varnish was added to 10 g of the commercially available oil paint Zinc White, it became water-soluble.

Example 2 After preparing 100 parts of the dissolved oil of Example 1, 5 parts of saffron oil was added while it was still heated (90°C) and dissolved uniformly to give a colorless and transparent viscosity of 20 CPS.
(at 25℃) melted oil was obtained.

It was confirmed that when 2 g of this varnish was added to 10 g of the commercially available oil paint Silver White, it became water-soluble.

Example 3 Neugen ET 190 34 parts Neugen ET 80 22 parts Turpentine oil 21 parts Water 23 parts According to Example 1, pale yellow and transparent, viscosity 23CPS,
(st25℃) melted oil was obtained.

It was confirmed that 10 g of the commercially available oil paint Ivory Black and 3 g of this dissolved oil became water-soluble.

Example 4 Nonipol 400 28 parts Neugen ET 80 24 parts Whitesol 25 parts Water 23 parts and 50% turpentine solution of Dammer resin 8 parts According to Example 2, pale yellow and transparent, viscosity 18 CPS,
(at 25℃) melted oil was obtained.

It was confirmed that 10 g of commercially available oil paint Cobalt Blue and 3 g of this dissolved oil were added to become water-soluble.

Claims (1)

[Scope of Claims] 1. A hydrophilic activator of the general formula () whose HLB is 16 to 20, H(CH ₂ CH ₂ O) n ₁ OA...() [A is or -R ₁ , R ₁ is an alkyl group having 8 to 12 carbon atoms, n ₁
is an integer between 40 and 120. ] 2 A lipophilic activator of the general formula () whose HLB is 6 to 11, H(CH ₂ CH ₂ O) n ₂ OB … () [B is or -R ₂ , R ₂ is an alkyl group having 8 to 18 carbon atoms, n ₂
is an integer from 3 to 12. ] 3. An alicyclic hydrocarbon solvent or aliphatic hydrocarbon solvent with a boiling point in the range of 150°C to 180°C; 4. A dissolved oil for oil paints containing water as an essential component.