JPH05309994A - Solid correction agent - Google Patents

Abstract

PURPOSE:To obtain a solid correction agent capable of rewriting without repelling even water base ink by incorporating N-fatty acid acyl amino acid having a specified structure or alkali salt thereof, water or the mixed solvent of a water-mixable organic solvent and water, water soluble and/or water dispersive film forming resin and dye or pigment of white color. CONSTITUTION:A solid correction agent is obtained by incorporating N-fatty acid acyl amino acid shown in a formula I (RCO- shows fatty acid residual radical) or alkali salt thereof, water or the mixed solvent of a water-mixable organic solvent and water, water soluble and/or water dispersive film forming resin and dye or pigment of white color and/or color similar to the quality of paper as an essential component. When the same is used, strong irritating odor, toxicity, fluidity and settling of a masking agent are eliminated. Moreover since a gelatinizer and the film forming resin itself have affinity for water, rewriting is enabled without repelling even water back ink.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid correction tool, and more particularly to a case where an erroneous writing on a handwriting by a normal writing tool, a printing mark by a printing machine such as a typewriter or a printer, and an erasing and correction of excess toner by a copying machine are performed. It relates to a solid modifier used.

[0002]

2. Description of the Related Art Conventionally, in the case of various writing inks or various printings, in order to hide and correct erroneous portions such as characters and images by printing, white pigments, binder resins and volatile organic solvents which disperse or dissolve these components are used. A so-called correction fluid was used.

[0003]

However, when such a correction liquid is used, it takes several tens of seconds after application, so that not only is it not quick, but also the pigment precipitates and separates. Or the solvent volatilizes and the viscosity increases and it adheres excessively to the brush and the paper surface, so it is often necessary to dilute it with a diluent.
It had the drawback of being extremely difficult to handle, such as having a strong bad smell and toxicity. Further, in the conventionally proposed solid correction agents, for example, JP-A-58-162673 and JP-A-58-1626.
No. 74 and Japanese Patent Laid-Open No. 64-29476 use a condensate of a sugar alcohol and an aromatic aldehyde as a gelling agent, but these condensates must be composed mainly of an organic solvent due to their properties. For this reason, it exhibits a blackening effect on thermal paper, and easily bleeds when erasing handwriting with an oil-based ink to cause a bleeding phenomenon.
There was a problem that it was difficult to balance the hiding power. On the other hand, JP-A 1-259998 proposes a fatty acid soap, a binder, a pigment dispersant, and a pigment. However, the surface of the solid correction agent (gel) is easy to dry, and when the hardness is increased to a practical level, the smoothness exceeds smoothness. Therefore, there is a problem that it becomes slippery and the coating amount required for concealment cannot be obtained.
No. 126774 uses an alkali metal salt or ammonium salt of an aliphatic carboxylic acid having 8 to 36 carbon atoms, and further uses an organic / inorganic salt as a gel formation enhancer and a sequestering agent. The metal salt itself is prone to hydrolysis, and various salts and sequestering agents are added, so it is inevitable that the solvent ratio to the total amount or the titanium oxide ratio as a masking agent will relatively decrease. Therefore, there is some hiding power, there is a problem with stirring and filling process due to the rise of clay, and because the drying from the surface is too fast, a wet tissue is attached to make it difficult to apply and the surface is wiped and moisturized. However, it is unavoidable to bother and increase the cost due to the fact that a water-containing sponge must be provided inside the cap to contain water.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to eliminate the drawbacks of the conventional correction liquid and solid correction agent as described above. Focusing on the fact that the cause that had such a drawback was that it was a liquid that was dissolved in a volatile organic solvent, and that the solvent was extremely likely to volatilize from the surface of the solid correction tool, basically it was a solid correction As a result of intensive studies aimed at obtaining a solid correction agent having the advantages of the agent, that is, the coating property, rewriting property, and safety in use, N-fatty acid acylamino acid or a N-fatty acid acylamino acid having a water retention effect as a gelling agent was obtained. The inventors have found that the combination of the alkali salt or the alkali metal salt of an aliphatic carboxylic acid is optimal, and finally completed the present invention. It is not clear why it has a water-retaining effect, that is, the present invention relates to a mixture of N-fatty acid acylamino acid or its alkali salt or an alkali metal salt of an aliphatic carboxylic acid with water or a water-miscible organic solvent with water. , A water-soluble and / or water-dispersible film-forming resin and a solid correction agent comprising at least a white and / or paper-like pigment. A mixture of N-fatty acid acylamino acid or a mixture thereof with an alkali salt or an alkali metal salt of an aliphatic carboxylic acid and water or a mixed solvent of water and a water-miscible organic solvent and water used in the present invention is a masking agent (white A chromatic pigment) is used as a dispersion medium and is used as a coatable gelling agent. The fatty acids and amino acids constituting the N-fatty acid acylamino acid or its alkali salt are coconut oil fatty acid, lauric acid, Fatty acids such as myristic acid, stearic acid (hardened beef tallow), fatty acids (hardened beef tallow / coconut oil type), and amino acids include aliphatic amino acids such as glutamic acid, aspartic acid, glycine, and alanine. The monosodium salt, the disodium salt, and the monotriethanolamine salt of the acylated product are listed respectively. In particular N- stearoyl -L- glutamate monosodium or N- mixed fatty acyl -L- monosodium glutamate also is suitable. These N-fatty acid acylamino acids or alkali salts thereof may be used alone or in admixture of two or more. As the alkali metal salt of the aliphatic carboxylic acid to be mixed and used, the sodium salt of the aliphatic carboxylic acid having 8 to 36 carbon atoms can be used, but the one having 12 to 18 carbon atoms is particularly preferable. When N-fatty acid acylamino acid or its alkali salt is used as a gelling agent, compounding a compound having a polyoxyalkylene structure in the molecule further improves coatability, coat adhesion to paper and shape stability. In addition to being able to do so, it becomes possible to adjust the viscosity and solidification time during heating, and to fill and fill a filling machine or container without complicated operations to produce a solid correction agent of the desired shape. Therefore, it may be added if necessary. That is, the present invention includes (a) a mixture of N-fatty acid acylamino acid or its alkali salt or an alkali metal salt of an aliphatic carboxylic acid, (b) water or a mixed solvent of water and a water-miscible organic solvent, and (c). Water-soluble and / or water-dispersible film-forming resin, (d) white and / or paper-like pigment,
Further, the present invention relates to a solid correction agent characterized by containing a compound having a polyoxyalkylene structure in the molecule, if necessary. As the water-miscible organic solvent in the present invention, methyl alcohol, ethyl alcohol, propyl alcohol,
Monohydric alcohols such as isopropyl alcohol, polyhydric alcohols such as ethylene glycol, diethylene glycol, propylene glycol, triethylene glycol, glycerin, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monomethyl ether acetate and their derivatives, mono Examples thereof include amine solvents such as ethanolamine and triethanolamine, and one or more of these can be appropriately used. Next, as the water-soluble and / or water-dispersible film-forming resin, polyvinyl alcohol,
Polyvinylpyrrolidone, carboxymethylcellulose,
Carboxyethyl cellulose, hydroxypropyl cellulose, polyvinylpyrrolidone / vinyl acetate copolymer,
Vinylpyrrolidone / styrene copolymer, polyacrylamide, methyl vinyl ether / maleic anhydride copolymer, styrene / acrylic resin, vinyl acetate resin, polyvinyl alcohol partially butyralized resin, polyvinyl butyral resin, polyvinyl methyl ether, etc. One kind or two or more kinds can be appropriately used. The white pigment used in the present invention is used for the purpose of hiding handwriting and images, and rutile type or anatase type titanium oxide can be used. Specifically, Kronos KR-
310, Kronos KR-380, Kronos KR-480
[Made by Titanium Industry Co., Ltd.], Taipaque R-580,
Taipaque R-550, Taipaque R-930, Taipaque A-100 [all manufactured by Ishihara Sangyo Co., Ltd.], Taitone SR-1, Thaitone R-650, Thaitone A-11
No. 0 (manufactured by Sakai Chemical Industry Co., Ltd.) and the like, but if necessary, a small amount of an organic / inorganic chromatic dye may be added to impart a color similar to paper quality. These white pigments may be used alone or in admixture of two or more, but the amount used is preferably determined in consideration of the hiding power for handwriting. Further, calcium carbonate or the like may be combined with titanium oxide. When using the N-fatty acid acylamino acid or its alkali salt, a polyoxyalkylene structure is optionally used in the molecule mainly for the purpose of improving the coatability, the adhesion of the coating film on the paper surface, and the shape stability. Examples of the compound having a polyoxypropylene bond such as oxypropylene bond in the molecule are polyoxypropylene glycol, polyethylene glycol ether, polyethylene glycol alkyl ether, polyethylene glycol alkyl phenyl ether, polyethylene glycol fatty acid ester, etc. Can be exemplified, and one or more of these may be used. The weight% of each component used in the present invention is
Mixtures of N-fatty acid acylamino acids or their alkali salts or alkali metal salts of aliphatic carboxylic acids 3 to 15
% By weight, preferably 5-10% by weight, water or a mixed solvent of water and a water-miscible organic solvent and water 25-60% by weight, preferably 35-50% by weight, water-soluble and / or water-dispersible film-forming resin. 1 to 30, preferably 3 to 20% by weight, white pigment 20 to 60% by weight, preferably 30 to 55% by weight,
Various dispersants to disperse pigments as needed, compounds having a polyoxyalkylene structure in the molecule to improve moldability and quality, preservatives, defoamers, solubilizers, bleaches, fragrances, It is also possible to appropriately add a coloring dye or pigment.

[0005]

As described above, the gel of the present invention comprising a mixture of N-fatty acid acylamino acid or an alkali salt thereof or an alkali metal salt of an aliphatic carboxylic acid, and water or a mixed solvent of a water-miscible organic solvent and water is It itself has excellent water retention, moldability, and coatability, but at the same time it is compatible with many water-soluble and / or water-dispersible film-forming resins and various white / chromatic pigments / pigments. Even if these resins and white pigments coexist therein, they exhibit water retention, moldability and coatability without any change. Therefore, as a component of the solid modifier, N-fatty acid acylamino acid or its alkali salt or aliphatic salt is used. When a mixture with an alkali metal salt of carboxylic acid is used, a wet tissue or a hydrous sponge is not required in the cap effectively, and the applicability at the time of hiding correction of handwriting, images, etc. is impaired. It is not, or the coating film was able to achieve an equal desired object having excellent re-writability well hiding properties.

[0006]

EXAMPLES The present invention will be described in detail below with reference to examples. Example-1 Water 41.0% by weight Amisoft HS-11 [monosodium N-stearoyl-L-glutamate: manufactured by Ajinomoto Co., Inc.] 6.0% by weight Pluronic L-64 [polypropylene glycol polyethylene glucose ether] : Asahi Denka Co., Ltd.] 4.0 wt% Uniol D [Polyoxypropylene glycol: Nippon Oil & Fats Co., Ltd.] 2.0 wt% Chronos KR-310 [Titanium oxide: Titanium Industry Co., Ltd.] 34. 0% by weight Malic acid (dissolution aid) 6.0% by weight Gantrez AN-119 [vinyl methyl ether / hydrous maleic acid copolymer: GAF CHEMICALS CORPORATIO N] 6.0% by weight Sodium benzoate (preservative) 1.0 wt% Water, Amisoft HS in a four-necked flask equipped with a stirrer, a reflux condenser, and a thermometer. 11, Pluronic L-64, Uniol D, Chronos KR-310 (titanium oxide), malic acid, sodium benzoate were added, mixed and dispersed, and Gantrez AN-119 was added, and the mixture was sufficiently stirred while heating at 85 to 90 ° C. After dissolving and dispersing, the mixture was allowed to stand at room temperature in an airtight lipstick-type container and allowed to cool and solidify to obtain the desired solid correction agent. Example-2 Water 33.5 wt% Ethyl alcohol 5.0 wt% Amisoft GS-11 [N-mixed fatty acid acyl-L-glutamate monosodium: manufactured by Ajinomoto Co., Inc.] 7.0 wt% citric acid ( Dissolution aid) 4.0% by weight Chronos KR-380 [titanium oxide: manufactured by Titanium Industry Co., Ltd.] 45.0% by weight GANTREZ AN-119 [vinyl methyl ether / hydrous maleic acid copolymer: GAF CHEICALS CORPORATIO N Manufacturing] 5.0 wt% potassium sorbate (preservative) 0.5 wt% Using the same apparatus as in Example 1, water, ethyl alcohol, Amisoft GS-11, citric acid, Kronos KR-380
After stirring and mixing, Gantrez AN-119 and potassium sorbate were added, and the mixture was sufficiently stirred while heating at 80 to 85 ° C to dissolve and decompose, and then injected into a lipstick-type container having airtightness to obtain the desired solid correction. I was able to get the medicine. Example-3 Water 39.7% by weight Amisoft HS-11 [N-stearoyl-L-glutaminate monosodium sodium: Ajinomoto Co., Inc.] 6.0% by weight Amisoft MS-11 [N-myristoyl-L- Monosodium glutamate: Ajinomoto Co., Inc.] 3.0 wt% DISCOAT N-14 (dispersant) [Polycarboxylic acid ammonium salt: Daiichi Kogyo Seiyaku Co., Ltd.] 1.0 wt% Silicon KM-606 (antifoaming agent) [manufactured by Shin-Etsu Chemical Co., Ltd.] 0.1% by weight TYPEK R-550 [titanium oxide: manufactured by Ishihara Sangyo Co., Ltd.] 44.0% by weight CMC1105 [carboxymethyl cellulose sodium: Daicel Chemical Industry Co., Ltd.] 5.0 wt% PVA H-17 [Polyvinyl alcohol: Denki Kagaku KK] 1.0 wt% Pentachlorophenolate Um (preservative) 0.2% by weight Example 1 The same apparatus as used water, Amisoft HS-11,
Amisoft MS-11: Discoat N-14: Silicon KM-606, Taipaque R-550, and sodium pentachlorophenol were charged and mixed with CMC11.
05, PVA H-17 was added, and the mixture was sufficiently stirred while heating at 85 to 90 ° C., dissolved and dispersed, poured into an airtight lipstick container, and allowed to cool and solidify at room temperature to give the desired solid correction agent. I was able to get it. Example-4 Water 33.5% by weight Ethyl alcohol 10.0% by weight Amisoft HS-11 [Monosodium N-stearoyl-L-glutamate: Ajinomoto Co., Inc.] 2.0% by weight Nonsal SN-1 [ Sodium stearate: Nippon Oil & Fats Co., Ltd.] 5.0% by weight DISCOAT N-14 (dispersant) [Polycarboxylic acid ammonium salt: Daiichi Kogyo Seiyaku Co., Ltd.] 1.0% by weight Dissum CA -104C (antifoaming agent) [polyalkylene glycol derivative: manufactured by NOF CORPORATION] 0.5% by weight HPC-L [hydroxypropylcellulose: manufactured by Nippon Soda Co., Ltd.] 2.0% by weight CMC1105 [carboxymethylcellulose sodium] Mu: Daicel Chemical Industries, Ltd.] 5.0 wt% Sodium benzoate (preservative) 1.0 wt% Kronos KR-310 [Titanium oxide: manufactured by Titanium Industry Co., Ltd.] 40.0% by weight Using the same device as in Example 1, water, ethyl alcohol, Amisoft HS-11, Nonsar SN-1, Discoat N-14, Dissum CA-104C, Charge sodium benzoate and Kronos KR-310, stir and mix, then add H
PC-L and CMC1105 were added, and the mixture was sufficiently stirred while heating to 80 to 85%, dissolved and dispersed, and then poured into an airtight lipstick type container and allowed to cool and solidify at room temperature to give the desired solid correction agent. I was able to get it.

[0007]

INDUSTRIAL APPLICABILITY As described in the above Examples 1 to 4, in the component of the solid correcting agent according to the present invention, water is used as a main solvent and an N-fatty acid acylamino acid or its alkali which has a water retaining effect as a gelling agent. By incorporating a salt or a mixture with an alkali metal salt of an aliphatic carboxylic acid, it was possible to form a stable solid correction agent with more than expected performance. That is, since the strong irritating odor / toxicity, fluidity, and sedimentation of the masking agent (titanium oxide), which were found in conventional liquid correction fluids, are eliminated, a: With a strong odor / toxicity b: Reproduce the precipitated masking agent Difficulty of shaking during use to disperse c: Difficulty in adjusting viscosity and concentration before and during use d: Difficulty in needing a diluting solution and increased cost e: Risk of liquid spill due to tipping of container f: Hand・ Fear of contamination of clothes g: Easy to apply excessively and wasteful h: Various problems such as blackening of thermal paper and inability to deal with OA are solved at the same time, and the surface of the solid correction agent of the present invention is Since it is difficult to dry, it does not require a wet tissue or a water-containing sponge in the cap, and an appropriate amount can be applied without slipping up to the correction part, so not only typographical errors are hidden by the coating film without unevenness, but the gelling agent itself has an affinity with water. Because there is
It is possible to rewrite without using the water-based ink,
Furthermore, it was possible to provide a solid correction agent having a very good usability by eliminating the risk of accidentally concealing nearby characters and the like by filling a small-diameter container.

Claims (2)

[Claims] 1. A: N-fatty acid acylamino acid represented by the following general formula or an alkali salt thereof b: Water or a mixed solvent of water and a water-miscible organic solvent and water c: Water-soluble and / or water-dispersible film forming property Resin d: A solid correction agent containing a dye or pigment having a color similar to white and / or paper quality as an essential component. [Chemical 1] 2. The solid correction agent according to claim 1, wherein the N-fatty acid acylamino acid or its alkali salt and an alkali metal salt of an aliphatic carboxylic acid are mixed and used.