JPH10330671A - Glossy ink composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a glossy ink composition enabling to brightly see handwritings or coating films with reflected light, when saw from various angles, exhibiting high glossiness, and useful for marking pens, etc., by including a gloss-imparting pigment, spherical particles having a high refractive index, a solvent and a resin. SOLUTION: This glossy ink composition contains at least (A) a gloss- imparting pigment such as a pearl pigment or a metal powder pigment preferably in an amount of 2.0-30 wt.% (based on the total amount of the glossy ink composition), (B) spherical particles having a high refractive index, such as spherical particles having a larger refractive index than the refractive index 1.5 of ordinary glass, (C) a solvent such as ethylene glycol, and (D) a resin such as a water-soluble rosin. The components A and B are preferably used in a ratio of 1:(0.05-0.5).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a marking pen,
The present invention relates to a glossy ink composition which is used by filling a writing instrument such as a brush pen or a coating instrument.

[0002]

2. Description of the Related Art Conventionally, pearl pigments and metal powder pigments have been used as gloss imparting pigments in inks for obtaining glossy handwriting in ink compositions. Aqueous inks using pearl pigments are disclosed in Japanese Patent Publication No. Hei 5-45633 and Japanese Patent Laid-Open Publication No. Hei 5-117569. A water-based ink using a metal powder pigment is disclosed in
No. 5491 and JP-A-1-301772. Further, an oil-based ink using a metal powder pigment is disclosed in Japanese Patent Publication No. 1-56109.

[0003] Among the above publications, Japanese Patent Publication No. 45633/1993 discloses a opacity imparting pigment selected from titanium oxide and a pearl pigment composed of mica pieces coated with titanium oxide, an alkali-soluble water-soluble resin, a rosin ester emulsion, An aqueous fluorescent pigment ink for a marking pen containing a daylight fluorescent pigment as an essential component is described.

JP-A-5-117569 discloses a pearl pigment having an average particle diameter of 5 to 100 μm in an amount of 5 to 50% by weight based on the total amount of the ink, and a dispersant / fixing agent in an amount of 5 to 30% based on the total amount of the ink. A water-based metallic or pearlescent ink composition is described which contains a dye or a pigment as a colorant in an amount of 0 to 20% by weight based on the total amount of the ink.

On the other hand, Japanese Patent Publication No. 7-35491 discloses that
An aqueous metallic color ink containing an aluminum powder pigment, an amphoteric compound, a resin emulsion and water as essential components is described.

[0006] Japanese Patent Application Laid-Open No. 1-301772 discloses a metal powder pigment composed of brass powder and / or copper powder, a dispersant, water, an aromatic amine having a specific structure as a rust preventive or a derivative thereof. Aqueous metallic pigment inks are described.

Further, Japanese Patent Publication No. 1-56109 discloses that
Aluminum surface-treated with fatty acids or fatty acid salts,
Fine metal powder selected from copper, zinc, and copper alloys; a hydrocarbon resin or xylene resin; and an organic solvent selected from aromatic hydrocarbons, aliphatic or alicyclic hydrocarbons, ketones, and esters that dissolve the resin. Viscosity of which essential component is 5
A metallic glossy ink for a marking pen of 0 centipoise or less is described.

[0008]

The handwriting using the ink obtained by the above-mentioned prior art may look shining or not shining depending on the viewing direction of the handwriting. This is for the following reason. Pearl pigments and metal powder pigments that give gloss to handwriting reflect light specularly on a scale-like wide surface.
Handwriting or a coating film containing a gloss-imparting pigment on a smooth surface appears to shine when viewed from the direction of specular reflection, but when the viewing direction is shifted, the handwriting or the coating film does not shine. Further, in a handwriting or a coating film containing the gloss-imparting pigment on the paper surface, the gloss-imparting pigment is oriented in various directions due to the unevenness of the paper surface. Therefore, the reflected light is reflected with a spread in the direction of specular reflection on the paper surface, so that the handwriting appears to shine even if the direction in which the handwriting is viewed is slightly deviated from the direction of specular reflection. However, when viewed from a direction deviated from the specular reflection direction, the handwriting shines weakly. It is an object of the present invention to provide an ink composition which is suitably filled and used in a writing instrument such as a marking pen or a brush pen or an applicator, and which has reflected light when its handwriting or coating film is viewed from various angles. It is an object of the present invention to provide an ink composition that becomes a handwriting that looks shining, and in particular, to provide an ink composition in which the handwriting looks shining with reflected light when the handwriting is viewed from the front.

[0009]

According to the present invention, there is provided a glossy ink composition comprising at least a gloss imparting pigment, high refractive index spherical particles, a solvent, and a resin. .

Hereinafter, the present invention will be described in detail. As the gloss imparting pigment used in the present invention, a pearl pigment and / or a metal powder pigment is used. Pearl pigments and / or metal powder pigments are used for the purpose of imparting gloss to handwriting. Pearl pigments include natural products such as fish scale foil, basic lead carbonate, bismuth oxychloride, natural mica whose surface is coated with metal oxide, and synthetic mica whose surface is coated with metal oxide. There are synthetic products. In general, from the viewpoint of availability and safety, those obtained by coating the surface of natural mica with a metal oxide and those obtained by coating the surface of synthetic mica with a metal oxide are often used. The pearl pigment is a pigment having both mirror-like gloss and pearl-like gloss in addition to the color tone. The color tone of the pearl pigment mainly depends on the type of the metal oxide coated on the surface. For example, a metal oxide using titanium oxide or aluminum oxide has a white silver color tone. In the case where iron oxide is used or the case where a titanium oxide layer and an iron oxide layer are provided, the color tone becomes gold, red, or copper due to absorption of a partial wavelength region by the iron oxide layer. In addition, those coated with chromium oxide or cobalt titanate have a green color tone.
In addition, in the case of pearl pigment, when the metal oxide used for coating is titanium oxide, light in a part of the wavelength range of the incident light is reflected depending on the thickness of the titanium oxide layer, and light in the wavelength range corresponding to a complementary color In some cases, it is possible to give colored handwriting by transmitting light. The specular gloss of the pearl pigment is such that at each boundary between the metal oxide layer with a high refractive index, the mica layer with a low refractive index, and the medium around the pearl pigment, the incident light is specular due to the difference in the refractive index of each layer. Obtained by reflection. The pearlescent luster of the pearl pigment is the same as that of reflected light from the pearl calcium carbonate layer and protein layer alternately laminated because the boundaries within one pearl pigment are parallel and the reflected light is combined. It is obtained by performing multiple reflections in a typical manner. Commercially available pearl pigments include Ir
iodin 100 (particle diameter: 10 to 60 μm, silver), iodin 100 (particle diameter: 10 to 50 μm, silver), iodin 100 (particle diameter: 10 to 50 μm, silver)
60 μm, gold), 302 (5-20 μm, gold), 323 (5-20 μm, gold), 504
(10-60 μm, red), 524 (5-20 μm)
m, red), 502 (10 to 60 μm, copper color), 520 (5 to 20 μm, copper color), GP (10 to 4 μm)
0 μm, green) (Merck Japan Co., Ltd.)
ULTIMICA SB-100 (5-30 μm, silver), SD-100 (10-60 μm, silver), SE-100 (15-100 μm, silver), RYB
-100 (5-30 μm, gold), RYD-100
(10-60 μm, gold), RYE-100 (1
5-100 μm, gold) (Nippon Koken Kogyo Co., Ltd.)
Manufactured), TAYCA PEARL TP-500 (1
0 to 70 μm, silver), TPX-720 (7 to 45)
μm, silver) and SP-800 (10-90 μm, silver) (all manufactured by Teica Corporation). Pearl pigments
They can be used alone or in combination of two or more. In the case of pearl pigments, gloss is produced by regular multiple reflections on parallel surfaces having different refractive indices. Therefore, if the particle diameter is smaller than 5 μm, the gloss becomes weak. Therefore, the particle diameter is preferably 5 μ or more.

Examples of the metal powder pigments include aluminum powder, brass powder, stainless steel powder, tin powder, zinc powder, bronze powder, nickel powder, copper powder, gold powder, silver powder and the like, mixed powders of these powders, and alloy powders of these metals. is there.

The aluminum powder pigment is obtained by stamping aluminum pieces with a lubricant such as stearic acid by a stamp mill, or by spraying aluminum powder, a lubricant and a suitable liquid obtained by spraying in a drum together with steel balls. It is obtained by a ball mill method of charging and pulverizing, and a scaly one is preferable. Commercially available aluminum powder pigments include Super Fine No. 2200
0, the same No. 18000, Fine No. 900, 8
00 (above, manufactured by Daiwa Metal Powder Co., Ltd.), AA12, A
A8, No. 900, No. 1800 (all manufactured by Fukuda Metal Foil & Powder Co., Ltd.), aluminum powder 1000, 2700
(The above is manufactured by Nakatsuka Metal Foil & Powder Co., Ltd.). In addition, aluminum paste is crushed and polished in a ball mill containing a high-boiling petroleum solvent (mineral spirit) and a lubricant such as stearic acid to form very thin flaky aluminum fine particles. Because
Less danger of ignition and explosion, good storage stability, and easy to use. As a commercially available aluminum paste, Super Fine No. 2200
0WN, the same No. 1800WN (all, manufactured by Daiwa Metal Powder Co., Ltd.), WB0230, WXM0630 (all, manufactured by Toyo Aluminum Co., Ltd.) and the like. Further, since aluminum powder pigments previously colored with a coloring agent are commercially available as colored aluminum powder pigments, they can also be used.

Commercially available copper and copper alloy powder pigments include PaleGold E5 (particle size: 15-100 μm).
m, gold), 2L5 (particle size: 10-70 μm, gold), RichGold L7 (particle size: 15-90 μm)
m, gold), 3L7 (particle size: 5 to 60 μm, gold), ECoper (particle size: 15 to 100 μm, copper) (all manufactured by Fukuda Metal Foil & Powder Co., Ltd.).
The above metal powder pigments can be used alone or in combination of two or more.

The amount of the pearl pigment and / or metal powder pigment used in the present invention is in the range of 1.0 to 70% by weight, preferably 2.0 to 30% by weight based on the total amount of the gloss ink composition. Can be used.

If it is desired to obtain a higher gloss, it is possible to obtain a higher gloss by using a pearl pigment and a metal powder pigment together. In this case, the pearl pigment and the metal powder pigment are used in a weight ratio of pearl pigment: metal powder pigment of 1: 0.0
Desirably, it is 1 to 0.6.

In the case of a writing instrument such as a marking pen or a brush pen, the size of the pearl pigment and / or metal powder pigment used is desirably 100 μm or less.
If the particle diameter is larger than 100 μm, the ink may be clogged with a fibrous or sponge-like nib of a marking pen or a brush pen, making writing impossible.

As the high refractive index spherical particles, spherical particles having a refractive index higher than the refractive index of ordinary glass of 1.5 are effective. HGB290 is commercially available.
(Particle size of about 420-105 μm), HGB275 (particle size of about 105-74 μm), HGB253 (particle size of about 74-53)
μm), HGB231 (particle size about 53-37 μm), HG
B210 (particle size of about 37 μ or less) (above, refractive index 1.9)
3, specific gravity 4.3, manufactured by Toshiba Barotini Co., Ltd.), WG
B276 (particle size about 105-88 μm), WGB265
(Particle size of about 88 to 74 μm), WGB254 (particle size of about 74
６３63 μm), WGB243 (particle size about 63-53 μm)
m), WGB232 (particle size about 53-44 μm), WGB
220 (particle diameter: about 44 to 5 μm) (above, refractive index: 2.2)
5, specific gravity 5.2, manufactured by Toshiba Barotini Co., Ltd.). The above high refractive index spherical particles can be used alone or in combination of two or more.

The ratio of the gloss-imparting pigment to the high refractive index spherical particles used in the present invention is desirably 1: 0.05-0.5.

The solvent is a dispersion medium for dispersing pearl pigments and / or metal powder pigments and high refractive index spherical particles,
Further, they are a solvent, a dispersion medium, and a diluent for a resin described below. As the solvent, those conventionally known as ink compositions can be used. In the case of a water-based ink, water is used as a main solvent, and a water-soluble organic solvent can be used in combination. The water-soluble organic solvent is, specifically,
Glycols such as ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, polyethylene glycol, 1,3-butylene glycol, thiodiethylene glycol, and glycerin; ethylene glycol monomethyl ether, diethylene glycol monomethyl ether, 2-pyrrolidone, and triethanolamine. They can be used alone or in combination. In the case of an organic solvent-based ink, organic solvents such as aromatic hydrocarbons, aliphatic hydrocarbons, alicyclic hydrocarbons, ketones and esters can be used. Specifically, xylene, toluene, swazole, naphthas, normal hexane, isohexane, alkylcyclohexane, methylcyclohexane, ethylcyclohexane, heptane, normal octane, isooctane, methyl ethyl ketone, methyl isobutyl ketone, butyl acetate, ethyl acetate or the like alone or Can be mixed and used.

The resin is used for fixing a solid substance in the glossy ink composition, such as a pearl pigment and / or a metal powder pigment, a high refractive index spherical particle, etc., to a writing surface such as paper. In the case of water-based inks, water-soluble rosin, water-soluble resins such as alkali metal salts, amine salts and ammonium salts of styrene-acrylic acid copolymer, and various other resin emulsions and water-soluble resins may be used alone or mixed. Can be used. In the case of an organic solvent-based ink, use a hydrocarbon resin, xylene resin, methacrylate resin, acrylate resin, phenol resin, polyamide resin, polyester resin, alkyd resin, ketone resin, etc. alone or in combination. it can.

In addition to the above components, wetting agents and lubricants such as urea, ethylene urea and thiourea, preservatives such as benzothiazoline and omazine, rust preventives such as benzotriazole, surfactants, viscosity modifiers and the like. Of various additives can be used.

Further, various colorants can be used in combination for toning. In the case of water-based inks, conventionally known water-soluble dyes and pigments such as acid dyes, basic dyes and direct dyes can be used. Acid dyes include C.I. I. Acid Blue 1 and basic dyes such as C.I. I. Basic Blue 7, direct dyes such as C.I. I. Direct Blue 8
6, C.I. I. Direct Green 6, C.I. I. Direct Orange 8 and the like. As the pigment, orange pigment C.I. I. 12055, C.I. I. 12075, C.I. I. 1
2125, C.I. I. 12305, C.I. I. 21165,
Brown pigment C.I. I. 12480, C.I. I. 12071,
C. of purple pigment I. 42535, C.I. I. 60010,
Blue pigment C.I. I. 74100, C.I. I. 74160,
C. I. 74180, green pigment C.I. I. 74260 and the like. When a pigment is used, a commercially available water-dispersed pigment is preferably used because the handleability and productivity are enhanced. Specific examples of the water dispersion type include EM YEL
LOWSCARLET 2Y, EM YELLOW P
INK 2B, EM YELLOW GREEN G,
EM YELLOW BLUE 2G (all manufactured by Toyo Ink Co., Ltd.) and the like. In the case of an organic solvent-based ink, conventionally known pigments such as an azo lake-based red pigment, a polyazo-based yellow pigment, and a cyanine-based green pigment, an acid dye, a metal-containing complex dye, and a phthalocyanine blue-based dye can be used.

In producing the ink of the present invention, various conventionally known methods can be employed. For example, it can be easily obtained by blending the above respective components and stirring and mixing with a stirrer such as a turbo mixer or a Henschel mixer, or mixing and grinding with a disperser such as a ball mill.

Incidentally, the metal powder loses its luster by reacting with water. For this reason, the metal powder pigment is surface-treated with a fatty acid, phosphoric acid, a salt thereof, or the like. However, in the case of an aqueous ink, the surface treatment alone is not sufficient because it is immersed in water for a long time. Therefore, when an aluminum powder pigment is used in a water-based ink, a combination of a perfluoroalkylphosphate ester and / or a perfluoroalkyltrimethylammonium salt is disclosed in Japanese Patent Application Laid-Open No. 6-1.
No. 92610, and N-fatty acid acyl-L-
Addition of glutamate is disclosed in JP-A-8-20905.
No. 3 discloses this. JP-A-1-301772 discloses a method of adding an aromatic amine or a derivative thereof to a brass powder and / or a copper powder pigment.
A method of performing a plasma treatment on aluminum powder or brass powder is disclosed in Japanese Patent Application Laid-Open No. 59-138280.
By adopting the invention described in the above publication also in the gloss ink composition of the present invention, it is possible to prevent the metal powder pigment used from reacting with water and losing the luster of the metal powder pigment.

The glossy ink composition of the present invention can be prepared by using a writing implement described in Japanese Utility Model Publication No. 55-32785 or a Japanese Utility Model Publication No. Sho 62-62.
It can be suitably used for writing instruments and applicators such as applicators with valves described in JP-A-29103.

[0026]

The spherical particles having a high refractive index are generally used for obtaining a retroreflective effect. The high-refractive-index spherical particles have good light transmittance and work as a lens. If there is a reflector at the focal point, the light is reflected in the direction of the incident light. It is used for a retroreflective plate or the like utilizing the principle of retroreflection that reflects light in the direction in which light is irradiated. In the case of a retroreflector, retroreflectivity cannot be obtained unless a reflector is provided at the focal point for light emitted from any direction. However, in the present invention, retroreflectivity is not required, and light may be reflected in directions other than the specular reflection direction without reducing specular reflectivity. For this reason, it is not always necessary to provide a gloss-imparting pigment as a reflector at the focal position of the high refractive index spherical particles. In addition, since the high refractive index spherical particles have good light transmittance, the surface is not matted and the glossiness is merely reduced as in the case of adding ordinary spherical particles.

[0027]

Examples Example 1 Pearl pigment (MC-306, manufactured by Nippon Koken Kogyo Co., Ltd., particle size: 10 to 60 μm, gold) 15.0 parts by weight High refractive index spherical particles (HGB231, manufactured by Toshiba Barotini Co., Ltd.) 2.0 parts by weight Resin (Johncryl 1535, styrene-acrylic acid copolymer, manufactured by Johnson Polymer Co., Ltd.) 10.0 parts by weight Ethylene glycol 7.5 parts by weight Xanthan gum 0.1 part by weight Water 64.2 Parts by weight Surfactant (Marialim AKM-0531, high molecular weight anionic dispersant, manufactured by NOF Corporation) 1.0 part by weight Preservative (Proxel GXL, 1,2-benzoisothiazolin-3-one, IC 0.2 parts by weight The above components were stirred and mixed with a propeller stirrer for 30 minutes to obtain a glossy gold ink.

Example 2 Aluminum paste (WB0230, manufactured by Toyo Aluminum Co., Ltd.) 10.0 parts by weight High refractive index spherical particles (WGB243, manufactured by Toshiba Barotini Co., Ltd.) 4.0 parts by weight Propylene glycol 10.0 parts by weight Resin (Johncryl 775, manufactured by Johnson Polymer Co.) 10.0 parts by weight Guar gum 0.5 parts by weight Water 64.8 parts by weight Surfactant (Schwego Fluor 8036, fluorocarbon polymer compound, manufactured by SCHWEGMANN, Germany) 0.5 part by weight Preservative (Proxel GXL, described above) 0.2 part by weight The above components were stirred and mixed with a propeller stirrer for 30 minutes to obtain a glossy blue ink.

Comparative Example 1 Pearl pigment (MC-306, manufactured by Nippon Koken Kogyo Co., Ltd., particle size: 10 to 60 μm, gold) 15.0 parts by weight Resin (Johncryl 1535, styrene-acrylic acid copolymer, Johnson) Polymer Co., Ltd. 10.0 parts by weight Ethylene glycol 7.5 parts by weight Xanthan gum 0.1 part by weight Water 66.2 parts by weight Surfactant (Mariarim AKM-0531, high molecular weight anionic dispersant, Nippon Oil) 1.0 part by weight Preservative (Proxel GXL, 1,2-benzoisothiazolin-3-one, manufactured by ICI Japan KK) 0.2 part by weight The above components are mixed with a propeller stirrer for 30 minutes. The mixture was stirred and mixed to obtain a glossy gold ink.

Comparative Example 2 Aluminum paste (WB0230, manufactured by Toyo Aluminum Co., Ltd.) 10.0 parts by weight Propylene glycol 10.0 parts by weight Resin (Joncryl 775, manufactured by Johnson Polymers Co., Ltd.) 10.0 parts by weight Guar gum 0 0.5 parts by weight Water 68.8 parts by weight Surfactant (Schwego Fluor 8036, fluorocarbon polymer compound, manufactured by SCHWEGMANN, Germany) 0.5 part by weight Preservative (Proxel GXL, as described above) 0.2 part by weight The components were mixed by stirring with a propeller stirrer for 30 minutes to obtain a glossy blue ink.

Comparative Example 3 Aluminum paste (WB0230, manufactured by Toyo Aluminum Co., Ltd.) 10.0 parts by weight Glass spherical particles (MB20, particle size of about 2 to 20 μm, manufactured by Toshiba Barotini Co., Ltd.) 4.0 parts by weight Propylene glycol 10.0 parts by weight Resin (John Krill 775, manufactured by Johnson Polymer Co.) 10.0 parts by weight Guar gum 0.5 parts by weight Water 64.8 parts by weight Surfactant (Schwego Fluor 8036, fluorocarbon polymer compound, 0.5 parts by weight Preservative (Proxel GXL, described above) 0.2 parts by weight The above components were stirred and mixed for 30 minutes with a propeller stirrer to obtain a glossy blue ink.

As described above, the glossy ink compositions obtained in Examples 1 and 2 and Comparative Examples 1 to 3 were applied to a high quality paper with an applicator having a thickness of 0.050 mm, dried and then measured for specular gloss. The method of measuring the specular gloss is such that when the incident light is changed by 5 ° C from 20 ° to 85 ° C with respect to the normal of the paper surface,
The gloss was measured with the reflection angle fixed at 20 ° to the normal to the paper. The 45 ° specular gloss of the standard plate was used as a reference. The measuring instrument used was a variable angle gloss meter VGS-300A (manufactured by Nippon Denshoku Industries Co., Ltd.). Table 1 shows the test results.

[0033]

[Table 1] As shown in the above table, both Examples 1 and 2 show high gloss over a wide range of angles of incident light when the handwriting is viewed from substantially the front which is a direction of 20 ° to the normal of the paper surface. .

[0034]

As described in detail above, the glossy ink composition according to the present invention is more effective than the handwriting of a pearl pigment alone or a metal powder pigment alone when the handwriting or coating film is viewed from various angles. This is an ink composition that becomes a handwriting that looks shining with reflected light, and particularly an ink composition that looks like a handwriting shining with reflected light when viewed from the front of the handwriting.

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[Procedure amendment]

[Submission date] June 17, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction contents]

The aluminum powder pigment is obtained by stamping aluminum pieces with a lubricant such as stearic acid by a stamp mill, or by spraying aluminum powder, a lubricant and a suitable liquid obtained by spraying in a drum together with steel balls. It is obtained by a ball mill method of charging and pulverizing, and a scaly one is preferable. Commercially available aluminum powder pigments include Super Fine No. 2200
0, the same No. 18000, Fine No. 900, 8
00 (above, manufactured by Daiwa Metal Powder Co., Ltd.), AA12, A
A8, No. 900, No. 1800 (all manufactured by Fukuda Metal Foil & Powder Co., Ltd.), aluminum powder 1000, 2700
(The above is manufactured by Nakatsuka Metal Foil & Powder Co., Ltd.). In addition, aluminum paste is crushed and polished in a ball mill containing a high-boiling petroleum solvent (mineral spirit) and a lubricant such as stearic acid to form very thin flaky aluminum fine particles. Because
Less danger of ignition and explosion, good storage stability, and easy to use. As a commercially available aluminum paste, Super Fine No. 2200
0WN, the same No. 18000WN (above, manufactured by Daiwa Metal Powder Co., Ltd.), WB0230, WXM0630 (above,
Manufactured by Toyo Aluminum Co., Ltd.). Further, since aluminum powder pigments previously colored with a coloring agent are commercially available as colored aluminum powder pigments, they can also be used.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0022

[Correction method] Change

[Correction contents]

Further, various colorants can be used in combination for toning. In the case of water-based inks, conventionally known water-soluble dyes and pigments such as acid dyes, basic dyes and direct dyes can be used. Acid dyes include C.I. I. Acid Blue 1 and basic dyes such as C.I. I. Basic Blue 7, direct dyes such as C.I. I. Direct Blue 8
6, C.I. I. Direct Green 6, C.I. I. Direct Orange 8 and the like. As the pigment, orange pigment C.I. I. 12055, C.I. I. 12075, C.I. I. 1
2125, C.I. I. 12305, C.I. I. 21165,
Brown pigment C.I. I. 12480, C.I. I. 12071,
C. of purple pigment I. 42535, C.I. I. 60010,
Blue pigment C.I. I. 74100, C.I. I. 74160,
C. I. 74180, green pigment C.I. I. 74260 and the like. When a pigment is used, a commercially available water-dispersed pigment is preferably used because the handleability and productivity are enhanced. Examples of water dispersion type include EM Scar
Let 2Y, EM Pink 2B, EM Green
G, EM Blue 2G (all made by Toyo Ink Co., Ltd.)
And the like. In the case of an organic solvent-based ink, conventionally known pigments such as an azo lake-based red pigment, a polyazo-based yellow pigment, and a cyanine-based green pigment, an acid dye, a metal-containing complex dye, and a phthalocyanine blue-based dye can be used.

Claims (1)

[Claims] 1. A gloss-imparting pigment, high-refractive-index spherical particles,
A glossy ink composition comprising at least a solvent and a resin.