JPH061098A - Solid correction agent - Google Patents

Abstract

PURPOSE:To make a solid correction agent excellent in stability for long-term preservation by using white pigment having large covering power, resin having a work for dyeing the white pigment on a paper, sulfur compound for preventing decomposition of gellant, and antiseptic as a solvent or dispersion medium, and solidifying solution or dispersion liquid consisting of water and/or hydrophilic organic solvent with the gellant. CONSTITUTION:White pigment having large covering power, for example, calcium carbonate, resin having a work for dyeing the white pigment on a paper, for example, aqueous solution or water dispersing resin such as polyvinyl alcohol, sulfur compound as rancidity inhibitor following air oxidation of gellant, and also, antiseptic and disinfectant for preventing rancidity to be caused by bacteria are used. Water and/or hydrophilic organic solvent, for example, univalent alcohol is used as the solvent or dispersion medium. As for the gellant, for example, saturated fatty acid alkali metallic salt is used and defoaming agent and perfume are added properly as occasion demands. These components are stirred by a stirrer. An extension lipstick like container having air tightness is filled with the components and they are cooled so as to be finished.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rewritable solid correction agent which is applied on a character or the like written on a paper surface to conceal it.

[0002]

2. Description of the Related Art Conventionally, a correction agent has been used which is applied to a portion to be corrected which has been written on, to conceal the portion to be able to write on the portion again, but most of such correction agents are liquid. belongs to. That is, the conventional correction agent dissolves a white pigment and a binder resin having a large hiding power in a volatile organic solvent,
It is a dispersion, and it is usual to shake the container containing the correction agent each time it is used to sufficiently disperse the white pigment before use. Therefore, this operation is not only troublesome, but also because the correction agent is in a liquid state, it takes several tens of seconds for it to be completely dried and ready for rewriting after application, and since it is in a liquid state, it is applied more than necessary. However, there are problems that the paper surface is raised and even normal areas are erased.

Therefore, in order to solve such problems, the liquid correction agent is solidified with fatty acid soap and various waxes, or is made into a solid state by using a gelling agent. For example, a fatty acid soap as a solidifying agent or a binder, a solid correction agent comprising various waxes, a resin and a pigment (JP-A-59-162077), water as a solvent, a fatty acid soap as a gelling agent, A resin as a binder, a pigment dispersant, and a solid correction agent composed of a pigment (JP-A-1
No. 259998) has been proposed. However, since the former uses fatty acid soap and wax as they are, it is susceptible to air oxidation, and the latter uses fatty acid soap and water, so it is not limited to simple air oxidation, but is easily decomposed by bacteria and mold. And causes a bad odor or yellowing, and because a pigment dispersant is used, the stirring process,
There are drawbacks such that a large amount of fine bubbles are easily engulfed during injection into a container and sufficient gel strength cannot be obtained.

[0004]

The inventors of the present invention have conducted extensive studies in order to improve this drawback, and as a result, the dissolution and dispersion of the pigment and the resin as the binder are extremely good, and the dispersant is not used. It has been found that the desired solid correction agent can be obtained by uniformly dissolving and dispersing a sulfur compound, an antiseptic agent, a pigment and a resin in water and / or a hydrophilic organic solvent and adding a gelling agent to the solution. Completed, the object of the present invention is to blend no dispersant that generates bubbles,
Prevents rancidity of gelling agents by adding sulfur compounds and preservatives,
It is to improve stability and dramatically improve quality and performance.

[0005]

The gist of the present invention is to provide a white pigment having a large hiding power, a resin having an effect of coating the white pigment on a paper surface, a sulfur compound and an antiseptic agent for preventing the deterioration of a gelling agent, and a solvent. Alternatively, it is a solid correction agent obtained by solidifying a solution or dispersion liquid containing water and / or a hydrophilic organic solvent as a dispersion medium with a gelling agent.

That is, in the present invention, a liquid obtained by dissolving or dispersing a white pigment, a resin, a sulfur compound and a preservative in water and / or a hydrophilic organic solvent without using a dispersant is solidified by a gelling agent. It is a corrective agent.

The present invention will be described in more detail below.
As the white pigment having a hiding power used in the present invention, any white pigment conventionally used as a correcting agent can be used, for example, calcium carbonate, kaolin, talc, barium carbonate, titanium oxide, precipitated barium sulfate, zinc. flower,
Although aluminum oxide and the like can be mentioned, a small amount of an organic / inorganic chromatic dye or pigment can be appropriately added in order to impart a color similar to paper quality, if necessary. Examples of the resin for applying the white pigment to the paper surface include polyvinyl alcohol, polyvinylpyrrolidone, carboxymethylcellulose, carboxyethylcellulose, hydroxypropylcellulose, polyvinylpyrrolidone / vinyl acetate copolymer, vinylpyrrolidone / Styrene copolymers, polyacrylamides, methyl vinyl ether / maleic anhydride copolymers, polyvinyl alcohol partially butyralized resins, water-soluble or water-dispersible resins such as polyacrylic acid sodium salt, and the like. One kind or two or more kinds can be appropriately used.

As an acid rancidity agent associated with air oxidation of the gelling agent, sodium salts such as thioantimonate, thioglycolate, thiocyanate, thiocarbonate and thiosulfate having a strong reducing action, Sulfur compounds such as potassium salt and ammonium salt can be mentioned, and sodium thiosulfate salt is particularly preferable. At the same time, to prevent rancidity caused by bacteria, sorbic acid, dehydroacetic acid, propionic acid, benzoic acid, boric acid and their alkali metal salts and thiabendazole, pentachlorophenol sodium,
Various general preservatives and bactericides such as benzalkonium chloride can be mentioned, and one or more of these can be appropriately used.

Further, water and / or a solvent or a dispersion medium are used.
Alternatively, a hydrophilic organic solvent is used. Examples of the hydrophilic organic solvent include methanol, ethanol, isopropanol and N-
Any of propanol, butanol, ethylene glycol, propylene glycol and cellosolves may be used, but monovalent alcohols are particularly preferable. Alkali metal salts of aliphatic carboxylic acids are used as the gelling agent, and specifically, saturated fatty acid alkali metal salts such as sodium laurate, sodium myristate, sodium palmitate, and sodium stearate are preferable.

% By weight of each component used in the present invention
Is a white pigment 15 to 60% by weight, preferably 20 to 50
% By weight, water-soluble or water-dispersible resin 5-30% by weight, preferably 10-25% by weight, sulfur compound 0.1-5.0% by weight, preferably 0.5-3.0% by weight, preservative 0.1
-5.0 wt%, preferably 0.5-3.0 wt%, water 0-50 wt%, preferably 0-40 wt%, hydrophilic organic solvent 0-60 wt%, preferably 0-50 wt% %, The gelling agent is 5 to 35% by weight, preferably 10 to 25% by weight. In addition, it is also possible to appropriately add an antifoaming agent, a fragrance or the like, if necessary. Next, the present invention will be described more specifically with reference to Examples.

[0011]

【Example】

Example 1 Ethyl alcohol 43.3% by weight Ethylene glyco-
5.0 wt% sodium laurate 15.0 wt% Diamond White TCR-11 [titanium oxide:
25.0 wt% sodium thioglycolate 1.5 wt% dehydroacetic acid 0.2 wt% PVP / VA S-630 [polyvinylpyrrolidone / vinyl acetate copolymer: GAF CHEM]
CALSCOR PORARION] 10.0 wt% or more is charged into a three-necked flask equipped with a reflux condenser, a stirrer and a thermometer, and stirred at 80 to 85 ° C for 1 hour. This was filled in an airtight elongated payout type lipstick type container and allowed to cool overnight to obtain the desired solid correction agent.

Example 2 Water 36.2% by weight Ethylene glycol 3.0% by weight Sodium myristate 15.0% by weight Chronos KR-310 [titanium oxide: manufactured by Titanium Industry Co., Ltd.]
30.0 wt% CMC # 1105 [Carboxymethyl cellulose sodium: manufactured by Daicel Chemical Industries, Ltd.]
3.0 wt% PVP K-30 [Polyvinylpyrrolidone: GAF CHEMICALS CORPORARI
ON] 10.0 wt% sodium thiosulfate 2.0
% By weight Sodium borate 0.5% by weight Fragrance 0.3
The intended solid correction agent could be obtained by blending and filling in the same manner as in Example 1 except that the temperature of 90% to 95 ° C was adjusted to 90% by weight or more.

Example 3 Water 13.1% by Weight Sodium Myristate 14.
0 wt% sodium stearate 4.0 wt% Diamond White TCA-123 [titanium oxide: manufactured by To-Chem Products] 30.0 wt% Matsumoke 0.1
Wt% Polyacrylic acid sodium salt [Acrysize 22HD (40% aqueous solution): Teikoku Chemical Industry Co., Ltd.] 35.0 wt% PVP / VA S-63
0 [polyvinylpyrrolidone / vinyl acetate copolymer: GA
Made by F CHEMICALS CORPORARION]
2.0% by weight Sodium thiosulfate 1.5% by weight
Pentachlorophenol sodium 0.3% by weight The above solid modifier was obtained by blending and filling the same as in Example 2 in the same manner as in Example 2.

[0014]

As described in Examples 1 to 3 above, no dispersant is used in the components of the solid correction agent according to the present invention. Moreover, the synergistic effect of containing a sulfur compound having a strong reducing property and a preservative having a strong bactericidal property and antifungal property can completely prevent rancidity and form a stable solid correction agent having a performance higher than expected. I was able to do something.
That is, at the same time, it solves various problems found in conventional solid correction agents using fatty acid soaps, such as a large amount of air bubbles mixed in, air oxidation during storage, bacteria, yellowing due to rancidity caused by mold, and generation of malodor. I was able to. As described above, the solid correction agent according to the present invention has remarkably excellent long-term storage stability.

Claims (1)

[Claims] 1. A white pigment having a large hiding power, a resin having an effect of coating a white pigment on a paper surface, a sulfur compound and an antiseptic agent for preventing alteration of a gelling agent, and water and / or hydrophilic as a solvent or a dispersion medium. A solid correction agent obtained by solidifying a solution or dispersion of a water-soluble organic solvent with a gelling agent.