Calligraphy ink

Abstract

To provide a calligraphy liquid that allows for smooth brushwork and can prevent liquid dripping.SOLUTION: A calligraphy liquid according to the present invention contains a dye, water, water-soluble alginate, and xanthan gum. Preferably, the mass ratio of the water-soluble alginate to the xanthan gum is 1.0-5.0. Preferably, the content of the water-soluble alginate is 0.5-2.0 mass% relative to the total amount of the calligraphy liquid. Preferably, the content of the xanthan gum is 0.3-0.6 mass% relative to the total amount of the calligraphy liquid.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to calligraphy fluids. [Background technology]

[0002] India ink contains carbon black or soot and glue or synthetic resin, and has traditionally had the problem that if it gets on clothing, it cannot be easily removed by washing. For this reason, various calligraphy fluids that can be easily removed by washing with water (hereinafter also referred to as erasable calligraphy fluids) have been proposed. For example, Patent Document 1 discloses a calligraphy fluid that contains an acid dye and an aqueous medium. This calligraphy fluid contains three or more dyes, including azo- or triphenylmethane-based red dyes, yellow dyes, and blue dyes (i.e., the three primary colors for blackening), blended in a predetermined ratio, so that even if it accidentally gets on clothing, it can be easily removed by washing.

[0003] Incidentally, in recent years, a new style of calligraphy known as performance calligraphy has quietly become popular among students, to the point that competitions such as the Performance Calligraphy Koshien have been held. In performance calligraphy, groups of several people (usually 5 to 10 people) use their entire bodies to write calligraphy on a huge piece of paper measuring about 4m x 6m, clapping and dancing to music. At the championships, participants compete on the beauty of their calligraphy, the beauty of their performance, and the sense of dynamism.

[0004] By using an erasable calligraphy liquid such as that in Patent Document 1 for performance calligraphy, even if the calligraphy liquid gets on the costume, it can be easily removed by washing. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-163147 Summary of the Invention [Problem to be solved by the invention]

[0006] In performance calligraphy, the calligraphy work is usually displayed by standing it up after completion of the work and before the calligraphy ink has dried. For this reason, it is desirable for the calligraphy ink used in performance calligraphy to be less likely to drip onto the paper, and the calligraphy ink of Patent Document 1 has room for improvement in terms of suppressing dripping.

[0007] One way to prevent dripping is to increase the viscosity of the calligraphy fluid, but increasing the viscosity of the fluid significantly impairs brush control (brushability) and hinders the dynamic feel required in performance calligraphy.

[0008] The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a calligraphy fluid that is excellent in penmanship and can prevent dripping. [Means for solving the problem]

[0009] The calligraphy fluid according to the present invention contains a dye, water, a water-soluble alginate, and xanthan gum.

[0010] The calligraphy fluid contains dye, water, a water-soluble alginate, and xanthan gum, so that the calligraphy fluid has excellent writing properties and is capable of preventing dripping.

[0011] In the calligraphy fluid according to the present invention, the mass ratio of the water-soluble alginate to the xanthan gum may be 1.0 to 5.0.

[0012] With this configuration, the calligraphy ink has better writing properties and is less likely to drip.

[0013] In the calligraphy fluid according to the present invention, the content of the water-soluble alginate may be 0.5 to 2.0% by mass relative to the total amount of the calligraphy fluid.

[0014] With this configuration, the calligraphy ink has better writing properties and is less likely to drip.

[0015] In the calligraphy fluid according to the present invention, the content of the xanthan gum may be 0.3 to 0.6% by mass relative to the total amount of the calligraphy fluid.

[0016] With this configuration, the calligraphy ink has better writing properties and is less likely to drip.

[0017] In the calligraphy fluid according to the present invention, the water-soluble alginate may be sodium alginate.

[0018] With this configuration, the calligraphy ink has better writing properties and is less likely to drip.

[0019] The calligraphy ink according to the present invention may be erasable by washing.

[0020] With this configuration, the calligraphy liquid adhering to the clothing can be easily removed by washing. [Effects of the Invention]

[0021] According to the present invention, it is possible to provide a calligraphy fluid that has excellent writing performance and is capable of preventing dripping. DETAILED DESCRIPTION OF THE INVENTION

[0022] Hereinafter, a calligraphy fluid according to an embodiment of the present invention will be described.

[0023] The calligraphy fluid according to this embodiment contains a dye, water, a water-soluble alginate, and xanthan gum.

[0024] Examples of water-soluble alginates that can be used include alkali metal alginates such as potassium alginate and sodium alginate, and amine alginates such as triethanolamine alginate and ammonium alginate. Of these, sodium alginate is preferably used as the water-soluble alginate.

[0025] The content of the water-soluble alginate is preferably 0.5 to 2.0% by mass, more preferably 0.5 to 1.5% by mass, based on the total amount of the calligraphy fluid.

[0026] Xanthan gum is a water-soluble polysaccharide obtained by fermenting starch with bacteria (Xanthomonas campestris).

[0027] The content of the xanthan gum is preferably 0.2 to 0.7% by mass, more preferably 0.3 to 0.6% by mass, based on the total amount of the calligraphy fluid.

[0028] The mass ratio of the water-soluble alginate to the xanthan gum (water-soluble alginate / xanthan gum) is preferably 1.0 to 5.0, and more preferably 1.5 to 4.0.

[0029] The dye preferably has two or more sulfonate groups in its structure and includes at least three of azo dyes (excluding those in which the aromatic ring is substituted with an alkyl group, a nitro group, an amino group, or an alkoxyl group) or triphenylmethane dyes, which are red dyes, yellow dyes, and blue dyes. The dyes preferably consist of the red dyes, yellow dyes, and blue dyes.

[0030] The sulfonate group in the structure can be selected from the group consisting of alkali metal salts, ammonium salts, and alkylammonium salts. Among these, from the viewpoint of enhancing the water-eliminating effect, the sulfonate group in the structure is preferably an alkali metal salt (particularly, a sodium salt).

[0031] Examples of the red dyes that can be used include azo-based Food Red No. 2 (Amaranth, CI 16185) and Food Red No. 102 (New Coccine, CI 16255). Examples of the yellow dyes that can be used include azo-based Food Yellow No. 4 (Tartrazine, CI 19140) and Food Yellow No. 5 (Sunset Yellow FCF, CI 15985). Examples of the blue dyes that can be used include triphenylmethane-based Food Blue No. 1 (Brilliant Blue FCF, CI 42090). The red dyes, yellow dyes, and blue dyes may each be used alone or in combination of two or more.

[0032] The content of the red dye in the dye is preferably 29.0 to 60.0% by mass, and more preferably 30.0 to 44.0% by mass. The content of the yellow dye in the dye is preferably 13.0 to 45.0% by mass, and more preferably 22.0 to 40.0% by mass. The content of the blue dye in the dye is preferably 17.0 to 38.0% by mass, and more preferably 26.0 to 38.0% by mass. When two or more red dyes, two or more yellow dyes, and two or more blue dyes are contained, the above content is the total content.

[0033] The total content of the dyes is preferably 1.0 to 40.0% by mass, and more preferably 2.0 to 15.0% by mass, based on the total amount of the calligraphy fluid.

[0034] The content of the water is preferably 60.0 to 90.0% by mass, and more preferably 62.0 to 87.0% by mass, based on the total amount of the calligraphy fluid.

[0035] The calligraphy fluid according to this embodiment may further contain other polysaccharides in addition to the water-soluble alginate and xanthan gum. Examples of other polysaccharides include sorbitol. The other polysaccharides may be used alone or in combination of two or more.

[0036] The content of the other polysaccharides is preferably 5.0 to 15.0% by mass, more preferably 5.0 to 13.0% by mass, based on the total amount of the calligraphy fluid. When two or more types of other polysaccharides are contained, the content is the total content of the other polysaccharides.

[0037] The calligraphy fluid according to this embodiment may further contain additives. Examples of additives include preservatives, antifoaming agents, dispersion stabilizing aids, surfactants, pH adjusters, viscosity adjusters, and thickeners. The additives may be used alone or in combination of two or more.

[0038] The content of the additive is preferably 1.0 to 4.0% by mass, more preferably 2.0 to 3.5% by mass, based on the total amount of the calligraphy fluid. When two or more additives are contained, the content is the total content of the additives.

[0039] The calligraphy fluid according to this embodiment contains dye, water, a water-soluble alginate, and xanthan gum, and therefore has excellent writing properties and can prevent dripping.

[0040] The calligraphy liquid according to this embodiment has a mass ratio of the water-soluble alginate to the xanthan gum of 1.0 to 5.0, which further improves writing ease and prevents dripping.

[0041] The calligraphy fluid of this embodiment has a content of the water-soluble alginate of 0.5 to 2.0 mass % relative to the total amount of the calligraphy fluid, which makes it easier to write and prevents dripping.

[0042] The calligraphy liquid according to this embodiment has a xanthan gum content of 0.3 to 0.6% by mass relative to the total amount of the calligraphy liquid, which makes it possible to further improve writing ease and prevent dripping.

[0043] In the calligraphy fluid according to the present invention, the water-soluble alginate is sodium alginate, which makes it possible to further improve the writing ease and prevent dripping.

[0044] The calligraphy liquid according to the present invention has washability, so that calligraphy liquid adhering to clothing can be easily removed by washing.

[0045] The present invention includes the following aspects. [1] A calligraphy fluid comprising a dye, water, a water-soluble alginate, and xanthan gum. [2] The calligraphy fluid according to [1], wherein the mass ratio of the water-soluble alginate to the xanthan gum is 1.0 to 5.0. [3] The calligraphy fluid according to [1] or [2], wherein the content of the water-soluble alginate is 0.5 to 2.0% by mass relative to the total amount of the calligraphy fluid. [4] The calligraphy fluid according to any one of [1] to [3], wherein the content of the xanthan gum is 0.3 to 0.6% by mass relative to the total amount of the calligraphy fluid. [5] The calligraphy fluid according to any one of [1] to [4], wherein the water-soluble alginate is sodium alginate. [6] The calligraphy liquid according to any one of [1] to [5], which is erasable by washing. [Example]

[0046] Examples of the present invention will be described below, but the present invention is not limited to the following examples.

[0047] <Preparing calligraphy fluid> Calligraphy fluids for each example and comparative example were prepared according to the formulations shown in Table 1. Details of each component shown in Table 1 are given below. Dye (red dye): Amaranth Dye (yellow dye): Tartrazine Dye (blue dye): Brilliant Blue FCF Water-soluble alginate (sodium alginate): Kimica Algin B-8 (Kimica Co., Ltd.) Xanthan gum: Ultra Xanthan V7T (manufactured by Ina Food Industry Co., Ltd.) Diethylene glycol (manufactured by Cosmo Oil Co., Ltd.) Polyvinyl alcohol: JP-10 (manufactured by Nippon Vinyl Alcohol Co., Ltd.) Alkali swelling resin: Primar TT-615 (manufactured by Dow Chemical Japan Co., Ltd.) 90% Aqueous triethanolamine solution (manufactured by Mitsui Chemicals, Inc.) CMC (Carboxymethyl cellulose): Cellogen HE-1500F (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.)

[0048] <Evaluation of drying property> Using the calligraphy inks of each example and each comparative example, after writing the character "永" in thick pen on copy paper, it was confirmed by finger whether the writing surface was dry after 30 minutes. When the calligraphy ink did not stick to the finger at all, it was evaluated as "〇", when the calligraphy ink stuck to the finger a little, it was evaluated as "△", and when the calligraphy ink was sticky, it was evaluated as "×". The evaluation results are shown in Table 1.

[0049] <Evaluation of writing feel> Using the calligraphy inks of each example and each comparative example, the lightness (resistance) of the pen when writing the character "永" in thick pen on copy paper was confirmed. When the writing feel was of appropriate lightness, it was evaluated as "〇", when the writing feel was slightly light or slightly heavy, it was evaluated as "△", and when the writing feel was too light or too heavy, it was evaluated as "×". The evaluation results are shown in Table 1.

[0050] <Evaluation of dripping property> Using the calligraphy inks of each example and each comparative example, immediately after writing the character "永" on copy paper, the copy paper was fixed vertically, and the dripping of the calligraphy ink after 3 minutes was visually observed. When the calligraphy ink hardly dripped, it was evaluated as "〇", when it dripped a little, it was evaluated as "△", and when it dripped considerably, it was evaluated as "×". The evaluation results are shown in Table 1.

[0051] <Evaluation of erasability> Using the calligraphy fluid of each example and comparative example, one drop of the calligraphy fluid was dropped onto a nonwoven fabric using a dropper, and a washing test was carried out in a cup containing 500 mL of detergent and water, and the degree of color fading was observed. If the color of the calligraphy fluid was almost completely removed, it was rated as "Good", if it was slightly removed, it was rated as "Good", and if it was not removed at all, it was rated as "Poor".

[0052] [Table 1]

[0053] As can be seen from the results in Table 1, the calligraphy fluids of the Examples that meet all the requirements of the present invention exhibit excellent drip prevention and writing performance. In addition, the calligraphy fluids of the Examples that meet all the requirements of the present invention exhibit excellent erasability and drying performance.

Claims

1. A calligraphy fluid comprising a dye, water, a water-soluble alginate, and xanthan gum.

2. 2. The calligraphy fluid according to claim 1, wherein the mass ratio of the water-soluble alginate to the xanthan gum is 1.0 to 5.

0.

3. 2. The calligraphy fluid according to claim 1, wherein the content of the water-soluble alginate is 0.5 to 2.0% by mass based on the total amount of the calligraphy fluid.

4. 2. The calligraphy fluid according to claim 1, wherein the content of the xanthan gum is 0.3 to 0.6% by mass based on the total amount of the calligraphy fluid.

5. 2. The calligraphy fluid according to claim 1, wherein the water-soluble alginate is sodium alginate.

6. 2. The calligraphy fluid according to claim 1, which is erasable by washing.

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