CN111925679B

CN111925679B - Oil painting pigment for fine arts

Info

Publication number: CN111925679B
Application number: CN202010843122.2A
Authority: CN
Inventors: 李慧红; 刘向前
Original assignee: Xinxiang University
Current assignee: Xinxiang University
Priority date: 2020-08-20
Filing date: 2020-08-20
Publication date: 2021-08-17
Anticipated expiration: 2040-08-20
Also published as: CN111925679A

Abstract

The invention relates to painting materials for art, in particular to an oil painting pigment for art, which comprises the following components: vegetable oil, pigment toner, extender pigment, thickener, span surfactant, and water. The oil painting pigment is green, environment-friendly and harmless to human bodies, has good performance indexes, improves the painting quality, and particularly has good light fastness, so that the painted works are not easy to fade.

Description

Oil painting pigment for fine arts

Technical Field

The invention relates to painting materials for art, in particular to an oil painting pigment for art. Belongs to the field of art painting pigments.

Background

The quality of oil painting pigment has great influence on the performance of painting techniques, and is one of the prerequisites for determining the service life of the paintings. In recent years, with the development of the painting industry, people have higher and higher requirements on oil painting pigments, and a plurality of reports on the improvement of the oil painting pigments exist in the prior art. For example, CN102816478B discloses the use of a thixotropic agent in an oil paint chain material to improve the oil separation of oil paint; CN108285710A discloses an acrylic oil painting pigment, which overcomes the phenomenon of color difference between a wet state and a dry state; CN111393916A discloses an antistatic and aging-resistant oil painting pigment which uses a novel graphene material. Compared with the traditional oil painting pigment, although the quality of the existing oil painting pigment is greatly improved, the problem of unstable separation of oil materials in the pigment still exists. In addition, under the condition of ensuring basic performances of the oil painting pigment such as tinting strength, hiding power and the like, after the oil painting pigment is used for completing the works, the air-drying time is required to be further shortened.

CN106554719A discloses an environmentally friendly oil paint, which reduces viscosity and drying time and overcomes the problem of oil separation, however, the pigment has insufficient light resistance.

Disclosure of Invention

In order to overcome the technical problems, the invention aims to provide a novel oil painting pigment.

The technical scheme of the invention is as follows:

the invention provides an oil painting pigment for art, which is characterized by comprising the following components in percentage by mass: 15-50% of vegetable oil, 5-30% of pigment toner, 15-50% of extender pigment, 1-5% of thickening agent, 1-10% of surfactant and 5-10% of water.

The oil painting pigment, wherein the surfactant is preferably span surfactant, such as span 20, span 40, span 60 or span 80; in particular, it is preferred that the surfactant is span 60.

The oil painting pigment, wherein the vegetable oil can be vegetable oil commonly used in oil painting pigments, and includes but is not limited to one or more of linseed oil, walnut oil, camellia oil or sunflower seed oil.

The oil painting pigment is characterized in that the pigment toner is common pigment powder in oil painting pigments, and can be inorganic toner or organic toner, for example. The inorganic toner can be iron oxide red, iron oxide yellow, iron oxide black or titanium dioxide, etc.; the organic toner may be, for example, phthalocyanine blue, toluidine purplish red, ultramarine, fast yellow G, hansa yellow 10G, phthalocyanine green G, or the like.

The extender pigment can be a filler aid commonly used in oil painting pigments, and can be one or more of barium sulfate, calcium carbonate, silica, kaolin, and the like.

The oil paint, wherein the thickener can be beeswax, stearic acid, aluminum stearate, etc.; preferably, the thickening agent is beeswax or octadecanoic acid.

The oil painting pigment can also contain a bactericide. The bactericide may be a bactericide or fungicide commonly used in oil paint, such as 2-methyl-4-isothiazolin-3-one, 1, 2-benzisothiazolin-3-one, and the like. Preferably, the oil painting pigment contains 0.1-0.5 percent of bactericide by mass.

As another object of the present invention, there is also provided the above-mentioned oil painting pigment preparation method, which comprises the steps of: (1) stirring and uniformly mixing the vegetable oil and the thickening agent, adding span 60 and the bactericide under stirring, and continuously stirring and uniformly mixing to obtain a feed liquid; (2) uniformly mixing water, pigment toner and extender pigment under stirring to obtain slurry; (3) adding the feed liquid prepared in the step (1) into the slurry prepared in the step (2) under stirring to obtain a semi-finished product; (4) and (4) grinding the semi-finished product prepared in the step (3) to obtain the oil painting pigment.

The novel oil painting pigment provided by the invention has no pungent smell, is safe and nontoxic, is a green and environment-friendly product, and is stable and short in drying time. In particular, compared with the oil paint disclosed in CN106554719A, the light fastness of the oil paint is improved, and a surprising technical effect is obtained.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, which are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

consists of the following components:

the preparation method comprises the following steps:

(1) adding walnut oil into a reaction kettle, setting the temperature at 70 ℃, adding beeswax while stirring, fully and uniformly mixing, stopping heating, cooling, sequentially adding span 60 and 2-methyl-4-isothiazoline-3-ketone while stirring, and uniformly stirring and discharging to obtain a feed liquid for later use;

(2) adding water into a material cylinder, sequentially adding barium sulfate and phthalocyanine blue while stirring at a rotating speed of 150r/min, and dispersing for 30 minutes at a speed of 400r/min to obtain slurry;

(3) slowly adding the feed liquid prepared in the step (1) into the slurry prepared in the step (2) under stirring at the rotating speed of 200r/min, and dispersing at the rotating speed of 800r/min until the surface of the material is smooth and has no particles to prepare a semi-finished product;

(4) and (4) sending the semi-finished product prepared in the step (3) to a hydraulic grinder for fully grinding, sampling, and performing fineness detection on a fineness plate until the fineness is less than 30 mu m to obtain the oil painting pigment.

Example 2:

consists of the following components:

components	Mass percentage content (%)
		Linseed oil	42.0
Iron oxide red	25.0
		Barium sulfate	15.0
Beeswax (Cera flava)	5.0
		Span 60	8.0
Water (W)	5.0

The preparation method comprises the following steps:

(1) adding linseed oil into a reaction kettle, setting the temperature to be 65 ℃, adding beeswax while stirring, stopping heating after fully and uniformly mixing, cooling, adding span 60 while stirring, and discharging the obtained material liquid after uniformly mixing;

(2) adding water into a material cylinder, sequentially adding barium sulfate and iron oxide red while stirring at the rotating speed of 200r/min, and dispersing for 50 minutes at the speed of 400r/min to obtain slurry;

(4) and (4) conveying the semi-finished product prepared in the step (3) to a three-roller machine for fully grinding, sampling, and performing fineness detection on a fineness plate until the fineness is less than 30 mu m to obtain the oil painting pigment.

Comparative example:

I. an oil paint was prepared according to the composition and preparation method of example 2, wherein span 60 was replaced with an equal amount of glyceryl monostearate.

II. An oil paint pigment was prepared according to the composition and preparation method of example 2, wherein span 60 was replaced with an equal amount of span 80.

III, composition and preparation method according to example 2, wherein span 60 is replaced by an equal amount of span 40 to prepare the oil painting pigment.

IV, oil paint pigment was prepared by replacing span 60 with an equal amount of span 20, according to the composition and preparation method of example 2.

And (3) testing the performance technical indexes:

the oil paint pigments of examples 1-2 and comparative examples I-IV were subjected to performance specifications according to the national pigment Standard (GB). The results are shown in Table 1.

Table 1: technical index of pigment performance

	Examples1	Example 2	Comparative example I	Comparative example II	Comparative example III	Comparative example IV
							Color difference (Delta E)	0.98	0.92	0.92	0.88	0.93	0.90
Fineness (um)	31	38	35	33	39	40
							Density (g/cm3)	1.63	2.14	2.03	1.98	1.92	2.10
Hiding power	110％	105％	102％	101％	101％	106％
							Fastness to light	Class V	Class VI	Class I	Class II	Class II	Class I
Viscosity (P)	3500	4000	5000	4800	4500	4600
							Drying time (h)	112	106	140	135	130	133

The present invention is illustrated by the above examples, but the present invention is not limited to the above embodiments, and it should be understood by those skilled in the art that any modification of the present invention, equivalent replacement of each raw material of the product of the present invention, addition of auxiliary components, selection of specific modes, etc. fall within the protection scope and disclosure of the present invention.

Claims

1. An oil painting pigment for art is characterized by comprising the following components in percentage by mass: 15-50% of vegetable oil, 5-30% of pigment toner, 15-50% of extender pigment, 1-5% of thickening agent, 1-10% of surfactant and 5-10% of water, wherein the surfactant is span 60, the vegetable oil is selected from linseed oil, walnut oil, camellia oil or sunflower seed oil, the pigment toner is inorganic toner or organic toner, the extender pigment is selected from barium sulfate, calcium carbonate, silicon dioxide or kaolin, and the thickening agent is beeswax or octadecanoic acid.

2. The oil paint of claim 1, further comprising a biocide.

3. The oil paint pigment according to claim 2, wherein the bactericide is 2-methyl-4-isothiazolin-3-one or 1, 2-benzisothiazolin-3-one.

4. The oil paint according to claim 2, wherein the content of the bactericide (0.1-0.5)% by mass is contained.

5. The oil painting pigment according to claim 3, wherein the content of the bactericide (0.1-0.5)% by mass is contained.