JPH04298577A - Water-soluble ink composition - Google Patents

Abstract

PURPOSE:To provide the title compsn. which is harmless even when licked by an infant and can develop various colors and tones. CONSTITUTION:The title compsn. is prepd. by using only food additives: a synthetic food color specified by Food Sanitation Law (e.g. Red No.1, Yellow No. 2, Green No. 3, or Blue No. 1) and/or a natural color (e.g. a turmeric color, a perilla color, or a chlorophyll color); propylene glycol, glycerin, or sorbitol as a water evaporation inhibitor; a sucrose ester, saponin, a fatty acid ester of sorbitan, or a fatty acid monoglyceride as a surfactant; sodium benzoate, sodium propionate, potassium sorbate, or thiabendazol as a preservative or antifungal agent; and sodium bicarbonate. potassium carbonate, malic acid, or citric acid as a pH regulator.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water-soluble ink composition for general writing or painting, and particularly to a water-soluble painting ink composition for use by young children.

0002

BACKGROUND OF THE INVENTION Water-soluble inks generally contain glycols as water evaporation inhibitors. Since these glycols have a sweet taste, the ink itself also has a sweet taste. Therefore, when children are given art materials filled with water-soluble ink and asked to draw, there is a risk that the children may lick the ink from the tip of the pen while drawing. In particular, water-soluble ink compositions used as art materials for young children may be dangerous if they use, for example, non-edible pigments, non-food additives, or compounds containing harmful heavy metals as coloring agents. Ta.

0003

SUMMARY OF THE INVENTION An object of the present invention is to provide a water-soluble ink composition that is harmless to infants and can produce various colors and tones.

0004

[Means for solving the problem] In preparing a painting ink that is not harmful to the human body, it is possible to first use chemically synthesized food coloring as a coloring agent, but it is also possible to use chemically synthesized food coloring as a coloring agent. If harmful ingredients were used in the formulation, there was often no point in using food coloring.

[0005] Therefore, the inventor of the present invention came up with the idea of preparing an ink for general writing or painting using only food additives. That is, the present invention relates to a water-soluble ink composition prepared only with food additives.

[0006] General writing or painting inks contain water, colorants, moisture evaporation inhibitors, surfactants, preservatives, antifungal agents, p.
It consists of H regulator, etc. The water-soluble ink composition of the present invention is characterized in that all the other ingredients including the coloring agent are prepared from food additives. What are food additives here?
According to the Food Sanitation Act, it refers to substances that are added to, mixed with, infiltrated with, or otherwise used in food during the food manufacturing process or for the purpose of food processing or preservation, and chemically synthesized substances are considered food products. Use what is specified by the Sanitation Act.

[0007] First, the dye, which is a coloring agent, will be described. Currently, chemically synthesized food colors designated by the Food Sanitation Law include food reds such as Red No. 2 (Amaranth), Red No. 3 (Erythrosin), Red No. 102 (Newcoccin), and Red No. 104 ( Phloxine), Red No. 105 (Rose Bengal), Red No. 106 (Acid Red), and food yellows include Yellow No. 4 (tartrazine), Yellow No. 5 (Sunset Yellow - FCF), and food green. There is Green No. 3 (First Green FCF),
Blue No. 1 (Brilliant Blue-F) is also used as a food blue color.
CF) and Blue No. 2 (isodigo carmine), for a total of 11 types.

[0008] However, since it is not always possible to obtain the desired color tone and density using only these limited food pigments, the range of pigment selection has been expanded by introducing natural pigments. As the natural pigment used in the present invention, any of those commonly used for food coloring can be used, such as turmeric pigment (curcumin PS, curcumin GS; yellowish), gardenia yellow pigment (crocin L-50, crocin P; yellowish),
Safflower yellow pigment (Safflower-YL, Safflower-Y; yellowish),
Annatto-pigment (Annat N, Annat NA; orange)
, paprika pigment (High Orange W, High Orange L; orange type), red malt pigment (Daiwa Monas LA, Daiwa Monas LA
R: red), cochineal pigment (cochineal red, high red MC; red), lac pigment (high red SL-N)
, High Red S; red type), grape skin pigment (High Red G-150, red type), beet red pigment (High Red B)
L; red type) perilla pigment (High Red SV-T; red type), berry pigment (High Red EP; red type), gardenia green pigment (High Green B, High Green GL; green type), chlorophyll Pigments (High Green O, High Green W-50;
green type), gardenia blue pigment (Hyblue-GL-C, Hyblue-GP; blue type), cacao pigment (chocolate color PC,
Chocolate color PH (brown), Korean pigment (smoke color K; brown pigment), Beta-carotene W (yellow)
etc., and one or more types can be used as necessary.

[0009] By using these food colorings and/or natural colorants, it is possible to uniformly obtain the desired color and tone.

[0010] Furthermore, water-soluble ink compositions using these food colorings and/or natural colorings are undesirable because emulsion type ones have poor stability, so water-soluble ink compositions are used to improve stability. In order to prepare more stable water-soluble general writing or painting inks, various additives other than colorants are also selected and used from among food additives, taking water solubility into consideration. This is desirable.

In the present invention, examples of water evaporation inhibitors used include propylene glycol, glycerin, and sorbitol. Examples of surfactants include sucrose ester (a combination of sucrose and a fatty acid having 12 to 18 carbon atoms), saponin (extracted from the resin of the South American soap tree, for example, the trade name Quilayanin P-20).
, sorbitan fatty acid ester, monoglycerin fatty acid ester, polyglycerin fatty acid ester, etc. are used.

Further, as preservatives and antifungal agents, for example, sodium benzoate, sodium propionate, potassium sorbate, thiabendazole (TBZ), etc. are used. Further, as the pH adjuster, for example, sodium bicarbonate, potassium carbonate, malic acid, citric acid, etc. are used.

[0013]

[Example] Next, an example will be shown. The percentages in the examples are percentages by weight. Example 1 Safflower-YL (safflower yellow pigment)
2.0% Daiwamonas LAR (red yeast color)
3.0% Red No. 102 (New Coccin)
2.0% Red No. 104 (phloxine)
2.0%
Yellow No. 4 (Tartrazine)
1.0%
propylene glycol
20.0% Thiabendazole (TBZ)
0.1% Pankabin N (trade name, sodium propionate) 0.3%
Charanin P-20
0.2%
Potassium carbonate (0.1N)
3.0% water

The ink obtained with 66.4% had a pH of 6.84, a surface tension of 32.4 dynes/cm, and a viscosity (15°C) of 3.43 cps, and was excellent as a red general writing or painting ink. .

Example 2 Safflower-YL (safflower yellow pigment)
1.0% High Green B (Gardenia green pigment)
1.0% Yellow No. 4 (Tartrazine)
3.0% Blue No. 1 (Brilliant Blue)
FCF) 3.5%
glycerin
15.0%
Sodium benzoate
0.5%
Pankabin N
0.3%
Charanin P-20
0.2%
water

The ink obtained with 75.5% has a pH of 6.59, a surface tension of 29.6 dynes/cm, and a viscosity (15°C) of 3.62 cps.
shows green color.

Example 3 Chocolate color PH
3.0%
Red No. 102 (New Coccin)
5.0% Yellow No. 4 (Tartrazine)
1.5% Yellow No. 5 (Sunset Yellow-FCF) 1
．． 0% Blue No. 1 (Brilliant Blue-FCF)
2.5% propylene glycol
15.0% Sorbitol
5.0% Sodium Benzoate
0.3% Bankabin N
0.2% sucrose ester
0.3% water

66.0%
The obtained ink has a pH of 7.30, a surface tension of 30.8 dynes/cm, a viscosity (15° C.) of 4.50 cps, and exhibits a black color.

Example 4 Red No. 104 (Phloxin)
3.0% glycerin
15.0%
Sodium benzoate
0.5%
Charanin P-20
0.2% potassium carbonate (0.1N)
3.0% water

The ink obtained with 78.3% has a pH of 9.45 and a surface tension of 35.9 dynes/
cm, viscosity (15°C) 3.02 cps, and a pink color.

Example 5 Hyblue-AN
5.0
% Red No. 106 (Acid Red)
2.0% Blue No. 1 (Brilliant Blue-FCF)
2.5% propylene glycol

10.0% glycerin

5.0% potassium sorbate

0.3% Charanin P-20

0.2% water

The ink obtained by 75.0% has a pH of 7.
．． 02, surface tension 33.3 dynes/cm, viscosity (15℃
) 3.28 cps and shows blue color.

[0018]

[Effects of the Invention] Since the ink for art materials for children of the present invention is formulated with food additives, there is no harm to children even if they taste it. Furthermore, since not only food pigments but also natural pigments are used as coloring agents, a wide variety of colors and tones can be produced, which is another advantage.

Claims (1)

[Claims] Claim 1: A water-soluble ink composition prepared using only food additives.