JPH0586362A - Colored inorganic stimulable phosphor colorant and character and design drawn therewith - Google Patents

Abstract

PURPOSE:To provide the subject colorant which fluoresces in ordinary color under visible rays, brightly fluoresces in a color which is the same as or different from the one under visible rays when irradiated with black light and has good weathering resistance. CONSTITUTION:A colorant comprising a pigment of an ordinary color and an inorganic stimulable phosphor pigment, fluorescing in a chromatic or achromatic color under visible rays and in a color which is the same as or different from the one under visible rays when irradiated with ultraviolet rays; and a character or a design drawn with the colorant on a substrate. In this way, it becomes possible to represent a character or a design which appears to be ordinary one under visible rays and appears to be one having a color which is the same as or different from one under visible rays when irradiated with black light and appearing to be different one and to change a character or a design by flickering an ordinary lighting or black light or by regulating its intensity. Further, it is very excellent in weathering resistance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is a color material having a normal color under visible light and normal illumination, but emits the same color and the same color as the above when irradiated with ultraviolet light (hereinafter referred to as black light). The present invention relates to a color material that emits a different color and a different color, and a character or a pattern drawn by the color material.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
Ordinary color pigments, organic phosphor pigments and inorganic phosphor pigments used as color materials for drawing characters and patterns are ordinary color pigments that can be seen under visible light and do not emit light under black light. The phosphor colorant emits only the same color under visible light and black light, and the inorganic phosphor pigment emits white under visible light and emits chromatic color under black light. As described above, the ordinary color pigment can be seen only under visible light, the inorganic fluorescent pigment can be seen only under black light, and the organic fluorescent pigment can be seen only in the same color under visible light and black light.

Therefore, an object of the present invention is to provide a coloring material which is a normal color under visible light and which vividly emits under black light in the same color as or a color different from that under visible light and has good weather resistance. Especially.

[0004]

In order to solve the above-mentioned problems, the present inventors have made diligent studies, and as a result, added a pigment of a normal color, which is relatively bright and has good weather resistance, to a paint or an ink of an inorganic phosphor pigment. Therefore, a normal color is visible under visible light, a color material that emits the same color as a normal color or a different color under black light, and using it, letters and designs that look different under visible light and under black light It was found that it can be obtained.

That is, the present invention is a color material comprising a normal color pigment and an inorganic phosphor pigment, which exhibits a chromatic color or an achromatic color under visible light and a color which is the same or different from that under visible light under ultraviolet light. Is.

The present invention is also a coloring material in which the above pigment is dispersed with a binder resin, a diluent and a dispersant.

Further, the present invention is a character or a pattern drawn on a material by the coloring material.

Further, the present invention is the above-mentioned character or design, wherein the material is paper, cloth, plastic plate, metal plate, glass, concrete or asbestos plate.

[0009]

EXAMPLES The present invention will be described in detail below with reference to examples.

Preferred composition examples of the coloring material of the present invention are described below. (1) Acrylic colored inorganic phosphor colorant paint a. 100 parts by weight of acrylic resin binder b. Inorganic phosphor pigment 200 parts by weight c. Colorant (organic pigment) 10 parts by weight d. Dispersant 10 parts by weight e. Thinner 20 parts by weight (2) Fluorine-based colored inorganic phosphor coloring material ink a. 100 parts by weight of fluororesin varnish b. Inorganic phosphor pigment 200 parts by weight c. Colorant (organic pigment) 10 parts by weight d. Dispersant 10 parts by weight e. Thinner 5 parts by weight f. Curing agent 10 parts by weight First, the varnish or medium of the binder of the coloring colorant paint or ink of the present invention is an acrylic-based, alkyd-based, epoxy-based, urethane-based, acrylic silicon-based, fluorine-based, melamine-based 1 liquid or 2 Use a liquid type that has good adhesion and weather resistance to the material, but select a varnish that is as transparent as possible.

As for the inorganic pigment, Y ₂ is used as a red phosphor.
O ₃ : Eu, YVO ₄ : Eu, Y ₂ O ₂ S: Eu, 3.5MgO, 0.5MgF ₂ GeO ₂ : Mn and the like can be mentioned, and these are used as one kind or a mixture of two or more kinds.

ZnS: Cu, Al, (Zn, Cd) S: C as a green phosphor
u, Al, Zn ₂ SiO ₄ : Mn, ZnS: Cu, ZnS: Ag, Cu, (Zn, Cd) S: Cu
Etc., and these are used as a mixture of one or two or more of them.

ZnS: Ag, CaWO ₄ , Y ₂ SiO ₅ : as a blue phosphor
Ce, ZnSiAg, Cd, Cl, Ca ₂ B ₅ O ₉ Cl: Eu ²⁺ , BaMgAl ₁₄ O ₂₃ : Eu ²⁺
Etc., and these are used as a mixture of one or two or more of them.

In addition, in order to obtain fluorescent colors such as lemon, yellow, orange, pink, violet, white and blue green, the above-mentioned red, blue and green are used as a mixture of two or more of them.

Examples of organic pigments used as colorants include cyan (C) -based phthalocyanine-based coloring materials, yellow (Y) -based Hansa yellow, naphthol yellow, and the like.
Permanent red, quinacridone, azo-based coloring materials, and the like are listed as magenta (M) -based coloring materials such as azo-based coloring materials, and other colors are used by mixing two or more of the above.

Examples of the dispersant include anionic, nonionic, cationic surfactants and higher fatty acid nitrogen derivative compounds.

Examples of the curing agent include isocyanate type, polyol type and organic metal type.

Examples of the thinner include xylol type, alkort type, alcohol type, cellosolve type, lacquer type and the like.

The form of the colorant includes paints, paints, silk screen inks and the like.

[0020]

According to the present invention, ordinary characters and designs can be seen under visible light, and the same characters and designs can be seen under black light in the same or different colors as under visible light and different characters under visible light. It is possible to express a design. It is also possible to change characters and patterns by blinking normal illumination or black light or dimming them.

For example, it is a normal picture, display, or signboard under visible light such as daylight, and when illuminated with black light when there is no visible light such as at night, the same color as visible light or Different colors can be emitted, and one screen can display two different screens for day and night.

Further, when the conventional organic phosphor coloring material is used, the same color can be obtained by the fluorescence under the visible light and the fluorescence emission under the black light, but the weather resistance is very poor and it can be used for a long time. On the contrary, according to the present invention, a very long time weather resistance can be obtained.

Claims (4)

[Claims] 1. A colored inorganic phosphor coloring material comprising a normal color pigment and an inorganic phosphor pigment, which exhibits a chromatic color or an achromatic color under visible light, and exhibits the same or different color under visible light under ultraviolet light. .. 2. The coloring material according to claim 1, wherein the pigment is dispersed with a binder resin, a diluent and a dispersant. 3. A character or pattern drawn on a material using the color material according to claim 1. 4. The character or pattern according to claim 3, wherein the material is paper, cloth, plastic plate, metal plate, glass, concrete or asbestos plate.