JPH01217090A - Solid coloring material, drawing material, correcting agent and fluorescent marker - Google Patents

Abstract

PURPOSE:To obtain a solid coloring material not blotting on grounds written with aqueous ink, not becoming blurred to the last, not being worn away, not deforming, containing an aliphatic carboxylate as a gelatinous substance, a coloring material, thixotropic agent, lubricant and water-repellent substance. CONSTITUTION:The aimed coloring material containing (A) an alkali metallic salt or ammonium salt of an aliphatic carboxylic acid having 8-36C as a gelatinous substance, (B) <=70wt.% coloring material such as titanium oxide, (C) <=5wt.% thixotropic agent such as organic bentonite or metallic soap and (D) <=10wt.% water-repellent such as wax. The coloring material is optionally further mixed with <=15wt.% film-forming resin dissolved or dispersed in water or water-miscible organic solvent.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a solid coloring material that can be used as a drawing material, a correction agent, a fluorescent marker, etc., and a drawing material, a correction agent, and a fluorescent marker using the same. .

[Conventional technology]

Drawing materials such as crayons and Freipas have conventionally been used as coloring materials. There are also liquid correction agents for correcting typos in documents and letters and misprints in printed matter, and fluorescent markers made of felt for checking.

[Problem to be solved by the invention]

However, conventional drawing materials use paraffin wax etc. as a solidifying agent, and the surfaces drawn with these materials are rough, and from a microscopic perspective, there are areas where the pigment is attached to the surface of the paper and areas where it is not. However, compared to liquid drawing materials, there were problems in the applicability of these materials. In addition, water-based inks have the disadvantage of repelling onto objects drawn with these.

On the other hand, correction agents require an applicator such as a brush, the dispersed pigment tends to settle and separate when left standing for a long time, and the correction agent thickens as the solvent in the container gradually evaporates. There were inconveniences such as making it difficult to apply. Also, if you are correcting water-based ink or oil-based ink, you may need to prepare several types for each type of ink, and there is an all-purpose type that can be used for both, but this does not use volatile organic solvents. This was not desirable in terms of safety and hygiene. In addition, when using a correction agent that does not use volatile organic solvents, when using water-based ink,
There was a problem with smudging. Furthermore, solid modifiers have been developed in the past, but they are not liquids and therefore still have fundamental defects in terms of applicability, and so far they have not been commercialized for practical use.

Fluorescent markers also have disadvantages, such as the felt attached to the tip of the marker becoming dirty or worn out during use, and the fact that the ink is running out only when the ink is scratched during use.

Therefore, although this invention is in solid form, it has excellent coating properties not found in conventional drawing materials or solid correction agents, and also uses volatile organic solvents like conventional correction agents. It ensures a safe and durable surface, and does not bleed or splatter even when using water-based ink, and does not cause the felt attached to the tip to wear out during use, like fluorescent markers. The object of the present invention is to provide a solid coloring material that can be used as a drawing material, a correction agent, a fluorescent marker, etc. without any problem, and a drawing material, a correction agent, and a fluorescent marker using this material.

(Means for Solving the Problems) In order to solve the above problems, the present invention employs an alkali metal salt or ammonium salt of an aliphatic carboxylic acid having 8 to 36 carbon atoms as a gel-forming substance, and as an essential component. In addition to the coloring agent, in order to improve the coating properties of the solid coloring agent, a thixotropic agent and a lubricant are added in the amount specific to the solid coloring agent, and since the system does not use volatile organic solvents, it is a water-based ink. From the viewpoint of preventing bleeding, etc., we have developed a solid coloring material that contains a water-repellent substance in an amount that does not impair the applicability and still ensures prevention of bleeding and repelling.

Here, the aliphatic carboxylic acid may be branched or non-branched, but is preferably an aliphatic monocarboxylic acid, preferably a fatty acid having 12 to 18 carbon atoms.

Further, as the alkali metal salt, sodium salt, lithium salt, potassium salt, etc. can be employed, but ammonium salt may also be used.

In particular, sodium myristate is most suitable. A suitable content range for the gel-forming substance is 5 to 20 wt% based on the total amount. This is because if it is less than 5 wt%, it will be difficult to solidify and cause problems in gel formation.
This is because if it exceeds t%, the action of the thixotropic agent and lubricant tends to be inhibited, which is unfavorable in terms of coating properties.

As the coloring material, known pigments can be used depending on the desired color, including white pigments such as titanium oxide, and dyes can also be used. However, it is preferable that the amount of the colorant is at most 7Qwt% based on the total amount. This is because it improves applicability without inhibiting the functions of thixotropic agents and lubricants.

Organic bentonite, inorganic bentonite, etc. can be used as the chicken trope agent. Examples of lubricants include aliphatic metal salts such as aluminum stearate and zinc laurate, and silicone emulsions. The content of the thixotropic agent and lubricant is preferably 5% by weight at most based on the total amount.

If it exceeds 5 wt%, the viscosity increases and production problems occur, whereas it is less than 5 wt%, preferably 1 to 4 wt%.
At t%, thixotropy occurs depending on the contact pressure to the surface to be coated during application, and in particular, the surface that comes into contact with the surface to be coated becomes slightly liquefied, resulting in good coating properties despite being solid. It is. The lubricant is
In this type of colorant system, it is understood that it has an enhancing effect on inducing the thixotropic properties of the thixotropic agent. Therefore, the lubricant is mainly a thixotropic agent,
It is preferable to add it to the above amount.

As the water-repellent substance, waxes of various melting points and modified products thereof, liquid paraffin, various oils and fats, zirconium-based water repellents, silicone oil, etc. can be used. However, the preferred content range is the maximum '+owt%. This is 1
If it is less than 0 wt %, the coating properties are good and the bleed prevention effect for water-based pens is sufficiently ensured, but if it exceeds this, it is not preferable that water-based pens or the like become repellent when overcoated.

When film formation is required, it is preferable to contain a film-forming resin that is soluble or dispersed in water, a water-miscible organic solvent, or the like. However, if the amount exceeds 15 wt%, the resin causes adhesiveness and inhibits thixotropic properties in the solid state, thereby inhibiting applicability, so it is preferable to use up to 15 wt%. For fluorescent markers, it is desirable to use no or only a small amount of the same resin. As the film-forming resin, in addition to emulsions of polyvinylpyrrolidone, salts of polyacrylic acid and methacrylic acid, and their esters alone or as copolymers, cellulose derivatives such as carboxymethylcellulose can be used. Further, as the water-miscible organic solvent, glycols such as propylene glycol, ethylene glycol, diethylene glycol, glycerin, diglycerin, triglycerin, etc. can be used.

[Effect]

Since the present invention has the above configuration, during use, the contact surface with the coated surface becomes slightly liquefied depending on the contact pressure due to the action of the thixotropic agent and the lubricant, so although it is solid, Good applicability is exhibited. Furthermore, because of the water-repellent substances such as wax and oil, even if the image is drawn on water-based ink or water-based drawing materials, it will not bleed.

In addition, unlike conventional correction agents, there is no need to worry about sedimentation, and since no volatile organic solvents are used, there are no health and safety issues. does not occur.

Also, unlike conventional fluorescent markers, it can be used as a solid fluorescent marker, does not bleed even when written with water-based ink, does not fade to the end, and has no problems such as tip wear or deformation.

〔Example〕

Next, the present invention will be explained in detail.

Example 1 Myristic acid 7 parts hydric soda (
35%) 4-part polyvinylpyrrolidone
7 parts titanium oxide 50
Part Osmos N 3 parts Aluminum stearate 1 part Liquid paraffin
1 part water
27 parts of water and 7 parts of myristic acid are charged into a reactor equipped with a stirrer, a reflux condenser, a dropping device, and a thermometer, and 4 parts of a 35% aqueous sodium hydroxide solution is added dropwise to prepare sodium myristate. Next, 7 parts of polyvinyl vinyl 9-ridone and 50 parts of titanium oxide, which had been sufficiently mixed and stirred in advance, were added, and 3 parts of Osmos N (inorganic bentonite manufactured by Shiroishi Kogyo Co., Ltd.), 1 part of aluminum stearate, and 1 part of liquid paraffin were added to the colander. After the mixture was added and thoroughly mixed and stirred at 80 to 90°C, it was poured into a lipstick container and solidified.

The product made in this way has excellent covering and applicability as a solid correction agent, and since it does not use volatile organic solvents, there is no need to worry about health and safety, and it can be applied over anything written with water-based ink. However, there was no blurring.

Example 2 Stearic acid 9.5 parts Hydrogen soda (35%) 4 parts Polyvinylpyrrolidone
1 part fluorescent pigment 2
5 parts Olben 3 parts Zinc stearate 1 part 135° paraffin wax 1 part Water
55.5 parts Prepared in substantially the same manner as in Example 1.

As the thixotropic agent, Olben (Fukiki Bentonite manufactured by Shiraishi Kogyo Co., Ltd.) was used. The product made in this way has excellent coating properties and can be used as a solid fluorescent marker.
It did not smudge even when applied over something written with water-based ink.

Example 3 Stearic acid 9.5 parts Hydrolic soda (35%) 4 parts Carboxymethylcellulose 0.5 parts Color pigment 5~
40 parts Bentone LT 3 parts aluminum stearate 1 part liquid paraffin
1 part water
76 to 41 parts were prepared in substantially the same manner as in the example below. Benton LT is an organic bentonite manufactured by Shiraishi Kogyo Co., Ltd. The product produced in this way had excellent coating properties as a solid poster color or solid paint, and did not bleed even when painted with water-based ink or applied over poster color. .

Comparative Example 1 Myristic acid 7 parts hydric soda (
35%) 4-part polyvinylpyrrolidone
7 parts titanium oxide 50
Part Water 32 parts Comparative Example 2 Stearic acid 9.5 parts Hydrolic soda (35%) 4 parts Polyvinylpyrrolidone
1 part fluorescent pigment 2
5 parts water 61
．． 5 parts On the other hand, as a result of testing as Comparative Examples 1 and 2 with the above blending amounts for those containing no thixotropic agent, lubricant, or water repellent, the coating properties were poor in both cases, and it was difficult to coat on anything written with water-based ink. However, smearing occurs,
It was recognized that it is not suitable as a solid modifier, solid fluorescent marker, etc.

Comparative Example 3 Stearic acid 9.5 parts Hydrolic soda (35%) 4 parts Carboxymethylcellulose 0.5 parts Color pigment 5~
40 parts water 81-46
Also, the product prepared with the blending amount of Comparative Example 3 had poor coating properties as a solid poster color or solid paint, and did not bleed even when applied over water-based ink or poster color. It was something that would happen.

〔Effect of the invention〕

As described in detail above, the present invention is capable of forming a solid gel by blending a certain gel-forming substance with a thixotropic agent and lubricant such as organic bentonite, inorganic bentonite, and metal soap, and a water-repellent substance such as coarse wax and oil. However, it is a solid that has excellent coating properties without the use of volatile organic solvents and does not bleed even when drawn on water-based ink or water-based drawing materials, making it extremely safe and hygienic. A shaped colorant was obtained.

Claims (5)

[Claims] (1) A gel-forming substance is an alkali metal salt or ammonium salt of an aliphatic carboxylic acid having 8 to 36 carbon atoms, a maximum of 70 wt% of a coloring agent such as titanium oxide, a thixotropic agent such as organic bentonite, a metal soap, and a lubricant. up to 5wt%, and up to 10w of water-repellent substances such as wax.
A solid colorant characterized by containing t% of each. (2) The solid coloring material according to claim 1, which contains a maximum of 15 wt% of a film-forming resin soluble or dispersed in water, a water-miscible organic solvent, or the like. (3) A drawing material comprising the solid coloring material according to claim 1 or 2. (4) A correction agent comprising the solid coloring material according to claim 2. (5) A fluorescent marker comprising the solid coloring material according to claim 1 or 2.