JP2002192899A - Pigment and undercoating for painting which can be used both for water-based colors and oily-based colors - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide pigments and an undercoating for painting which is free from the inconvenience of preparing at the time of use, have excellent color development and a quick drying property and can be used for both water-based colors and oil-based colors. SOLUTION: A water dispersible alkyd resin is provided as an active ingredient.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to water-based paints and oil-based paints, paints that can be used in combination with both paints, and water-based paints and oil-based paints.
The present invention relates to a base paint for painting that can be used in both paints.

[0002]

2. Description of the Related Art Conventional paints are as shown in Table 1 below when divided by a vehicle (binder).

[0003]

[0004] As can be seen from Table 1, there was no aqueous paint using an alkyd resin. Water-based paints that can be used together with oil paints include `` water-soluble oil paints '', but the basic technology is a technique based on oil paints, in which a surfactant is added to the oil paints. There is a problem that it is close to the area and cannot be said to be suitable for expression unique to water-based paint.

Acrylic paint can be applied to a dry oil paint surface, but has a problem of adhesion, and has the same problem as the oil paint layer on the dry acrylic paint, that is, a problem of peeling off. Acrylic paint has a problem that it is repelled on the oil paint layer.

[0006] In general, oil paints are characterized by a unique deep wet color, and in order to produce a strong, bright, floating color, it is necessary to use paints that can be used in combination with water-based oil paints, such as tempera paints. However, there was a troublesome problem that tempera paint had to be made when used.

[0007]

Accordingly, as a result of our intensive studies, we have found a paint that can be used in combination with both oil-based paint and water-based paint by using a water-dispersible alkyd resin. I found that it can also be used as a base paint.

[0008] Accordingly, an object of the present invention is to provide a paint and a base for painting which are not inconvenience of having to be produced at the time of use, have excellent coloring and quick-drying properties, and can be used in combination with both water-based paint and oil-based paint. It is intended to provide a paint.

[0009]

In order to achieve the above object, a paint which can be used in combination with the water-based paint and the oil-based paint of the present invention contains a water-dispersible alkyd resin as an active ingredient. or,
A water-dispersible alkyd resin, a water-soluble polymer and a water-dispersible polymer are used as active ingredients. Another object is to use a water-dispersible alkyd resin and a surfactant as active ingredients. or,
Water-dispersible alkyd resin, pigment, extender, surfactant and water are used as active ingredients.

[0010] Further, the base paint for painting which can be used in combination with the water-based paint and the oil-based paint of the present invention contains a water-dispersible alkyd resin as an active ingredient.

As for the water-dispersible alkyd resin, the alkyd resin itself is oily, but the water-dispersible alkyd resin is dispersed in water (emulsion). Therefore, since it is originally oily, it has good adhesion to oil paints, and since it is dispersed in water, it can be used together with aqueous paints.

The water-dispersible alkyd resin is used as a binder (binder). Further, a water-soluble polymer or a water-dispersible polymer such as gum arabic, an acrylic resin, or the like is used as a binder for aqueous paint. Is also good.

A surfactant may be added to bind water and oil and stabilize the paint itself.

The pigment functions as a coloring component, and includes various inorganic pigments and organic pigments.

The extender pigment is used to assist color development and improve drawing performance.
There are barium sulfate, alumina white, silica and the like.

Water is used as a solvent for diluting water because it may become too thick with only a water-dispersible alkyd resin, pigment, extender and surfactant.

A paint containing a water-dispersible alkyd resin as an active ingredient can also be used as a base paint for painting. The paint is applied to an old picture, an architectural wall, a pillar, or the like as a base, and then the picture is applied with a water-based paint or an oil-based paint. It works to draw.

It is also possible to add a humectant, an antifreezing agent and the like as auxiliary agents. Examples are ethylene glycol,
Examples include propylene glycol, glycerin, and sorbitol. An antifoaming agent, a thickening agent, an antiseptic / antifungal agent and the like which have been conventionally used for paints may be appropriately added.

The paint of the present invention can be easily produced by the same dispersing technique as the conventional paint manufacturing method. That is, mixing and dispersion by a mixer, dispersion by a three-roll mill, or bead mill or the like are performed.

[0020]

The present invention will be described below with reference to examples and comparative examples. In selecting a test color, representative pigments of the following pigment classes are used as pigments.

Representative examples of inorganic oxide whites include titanium oxide, representative examples of inorganic calcined pigments include cerulean blue, representative examples of inorganic oxides include light red, representative examples of organic lakes include chinching red, Is used.

Example 1 (Titanium oxide) Titanium oxide 40.0 Calcium carbonate 5.0 Organic bentonite 1.0 Methyl cellulose ester 0.1 Polycarboxylic acid type surfactant 1.2 Water-dispersible alkyd resin 32.0 Polyoxy Ethylene sorbitan fatty acid ester 1.6 Water 4.0

Example 2 (Cerulean blue) Cerulean blue 100.0 Organic bentonite 5.0 Methylcellulose ester 0.4 Polycarboxylic acid type surfactant 1.0 Water-dispersible alkyd resin 40.0 Polyoxyethylene sorbitan fatty acid ester 4 5.0 water 5.0

Example 3 (Light Red) Bengala 60.0 Organic bentonite 1.0 Methylcellulose ester 0.6 pH adjuster 0.3 Polycarboxylic acid type surfactant 1.0 Glycerin 2.9 Water dispersible alkyd resin 35 2.0 polyoxyethylene sorbitan fatty acid ester 2.0 water 15.6

Example 4 (Chinching Red) Chinching Red 10.0 Silica 2.0 Organic Bentonite 1.0 Hydroxypropyl Cellulose 0.5 Polycarboxylic Acid Surfactant 1.0 Glycerin 4.0 Water Dispersible alkyd resin 25.0 Polyoxyethylene sorbitan fatty acid ester 2.0 Water 5.0

Example 5 (as base paint) Titanium oxide 36.0 Fine silica 1.8 diatomaceous earth 6.0 Organic bentonite 7.2 pH adjuster 0.3 Polycarboxylic acid type surfactant 1.6 Water dispersible alkyd Resin 30.0 Polyoxyethylene sorbitan fatty acid ester 2.0 Antifoam 0.3 Water 15.0

Comparative Example 1 (Titanium oxide) Acrylic paint Titanium oxide 40.0 Calcium carbonate 10.0 Silica 2.0 Hydroxypropyl cellulose 0.5 Water-dispersible acrylic resin 24.0 Glycerin 5.0 Water 27. 0

Comparative Example 2 (PB35) Acrylic paint Cerulean blue (surface treated product) 55.0 Silica 3.0 Organic bentonite 0.5 Methylcellulose ester 0.5 Water-dispersible acrylic resin 24.0 Glycerin 5.0 Water 27. 0 Defoamer 0.1

Comparative Example 3 (Light Red) Acrylic Color Bengala 60.0 Silica 3.0 Organic Bentonite 0.5 Methylcellulose Ester 0.5 Water Dispersible Acrylic Resin 28.0 Glycerin 5.0 Water 27.0 Defoamer 0 .1

Comparative Example 4 (Chinching Red) Acrylic Color Tinching Red 5.0 Silica 3.0 Organic Bentonite 0.5 Methylcellulose Ester 0.5 Water Dispersible Acrylic Resin 24.0 Glycerin 5.0 Water 27.0 Foaming agent 0.1

Comparative Example 5 (Acrylic Gesso) Acrylic Paint Titanium Oxide 36.0 Fine Powder Silica 1.8 Diatomaceous Earth 6.0 Organic Bentonite 7.2 pH Adjuster 0.3 Polycarboxylic Acid Type Surfactant 1.6 Water Dispersibility Acrylic resin 30.0 Polyoxyethylene sorbitan fatty acid ester 2.0 Antifoam 0.3 Water 15.0

Comparative Example 6 (Titanium oxide) Watercolor paint Titanium oxide (PW6) 40.0 Calcium carbonate 20.0 Organic bentonite 1.0 Gum arabic 21.0 Glycerin 5.0 Water 42.0

Comparative Example 7 (PB35) Watercolor paint Cerulean blue (surface-treated product) 53.0 Calcium carbonate 5.0 Organic bentonite 0.5 Gum arabic 10.5 Glycerin 2.5 Water 21.0

Comparative Example 8 (Light Red) Watercolor Paint Light Red 60.0 Calcium Carbonate 5.0 Organic Bentonite 0.5 Gum Arabic 21.0 Glycerin 5.0 Water 42.0

Comparative Example 9 (Chinching Red) Watercolor Paint Chinching Red 5.0 Calcium Carbonate 30.0 Organic Bentonite 0.5 Gum Arabic 21.0 Glycerin 5.0 Water 42.0

The above ingredients were mixed with a laboratory mixer for 15 minutes, and then passed through a three-roll mill twice and dispersed to obtain an aqueous pigment composition (paint). Both the examples and the comparative examples have requirements for paint.

Examples 1 to 5 and Comparative Examples 1 to 9 were applied on a canvas, on a dry oil paint, on a wet oil paint,
Table 2 below shows a comparison between compatibility and adhesion between layers, and coloring and drawing.

[0038]

Examples 1 to 5 and Comparative Examples 1 to 9 were directly mixed with oil paints, acrylic paints, and watercolor paints, respectively, and the physical properties of the mixtures were examined. The results are shown in Table 3 below.

[0040]

Examples A1-5, Comparative Examples B1-4, Comparative Example C
Tables 4 below show the results of applying 1 to 4 to a glass surface and examining the adhesion.

[0042]

The present invention is shown in Tables 5 and 6 below for comparison with ready-made paints. Thus, the innovative effects of the paint of the present invention can be understood.

[0044] From Table 5, it can be seen that the use of the existing egg tempera paint is restricted by its use.

[0045]

[0046]

Since the present invention has the above configuration, there is no inconvenience that it must be made when used.
It can be used for both water-based and oil-based paints that have excellent color development and quick drying properties.

Claims (5)

[Claims] 1. A paint which comprises a water-dispersible alkyd resin as an active ingredient and can be used in combination with an aqueous paint and an oil paint. 2. A paint which comprises a water-dispersible alkyd resin, a water-soluble polymer and a water-dispersible polymer as active ingredients and can be used in combination with an aqueous paint and an oil paint. 3. A paint which comprises a water-dispersible alkyd resin and a surfactant as active ingredients and can be used in combination with an aqueous paint and an oil paint. 4. A paint which comprises water-dispersible alkyd resin, pigment, extender pigment, surfactant and water as active ingredients and can be used in combination with aqueous paints and oil paints. 5. A base paint for painting, which comprises a water-dispersible alkyd resin as an active ingredient and can be used in both water-based paints and oil-based paints.