JP2631996B2 - Solid modifier - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid correction agent for correcting characters printed with toner and characters written with water-based ink in a dry-type electronic copying machine.

2. Description of the Related Art Conventionally, as a correcting agent for correcting a character by an electronic copying machine or a character written with a water-based felt-tip pen or the like, there have been many spelling errors and paper shavings as represented by so-called sand poppy rubber. Was. However, when the paper is thin, it is not preferable because if the paper is scraped, the paper is easily broken.

Recently, a white correction liquid contained in a container as shown in FIG. 5 has been used. That is, by applying an appropriate amount of the correction liquid on the erroneous character to be erased, the character is once hidden, and if necessary, printed or written again from above after drying,
The correction is not noticeable, and is desirable for a document to be copied by, for example, an electronic copying machine.

(Problems to be Solved by the Invention) However, since the white correction liquid is naturally liquid, it is usually applied to the erroneous portion with a small brush or the like. If care is not taken, even the next character is often erased, and there is a serious inconvenience as a means for correcting small characters and the like.

If the concentration of the solution becomes too high due to use, it may be necessary to replenish the thinning solution, or it may be necessary to shake the storage bottle appropriately to make the concentration uniform, or if you forget to close the lid of this bottle. However, there is a drawback that the surroundings may be soiled by accidentally knocking down the bottle.

Furthermore, since it is a liquid, there is a problem that, when trying to correct a character stuck on a wall or the like, there is a case where an excessive character may be dropped down and erased.

(Means for Solving the Problems) The present invention has made an intensive effort to solidify the conventional correction fluid without deteriorating the performance thereof, and has solved the above-mentioned problems. C) dioxane and alcohols as a solvent, b) benzalized sorbite or a derivative thereof as a gelling agent, c) a resin as a binder, d) a pigment dispersant, and e) a pigment. It is a solid modifier.

In this case, the alcohol as the solvent is N-butanol, and preferably has a ratio of 50 to 150% with respect to dioxane. The resin as the binder is preferably a polyacrylate or a polymethacrylate. Further, the pigment is preferably an extender such as titanium oxide or calcium carbonate, and the pigment dispersant is preferably a fatty acid-based polycarboxylic acid.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings.

First, FIG. 1 is a flow chart showing a method for producing a solid modifier according to the present invention.

In the method for producing a solid modifier according to the present invention, the first
As shown in the figure, a solvent and benzalized sorbite are first mixed.

The benzalized sorbite is the most suitable and easily available as a gelling agent, and its amount is 1 to 5 with respect to the whole.
% Is preferable, and in this embodiment, it is set to 3%. As the gelling agent, for example, there are other materials such as organic bentonite and finely divided silica, but in these cases, the hardness in a gel state is not sufficient, which is not suitable for the present invention.

In the case of the present embodiment, the benzalized sorbite is mixed at about 8% with respect to the solvent, and even if the mixing ratio is set to 10% or more, it is not preferable because the solubility is poor and it does not dissolve.

As the solvent in the present invention, a mixture of dioxane and alcohols is used. N for alcohols
-Butanol, methanol, isopropyl alcohol,
There is isobutanol. Alcohols are common solvents and play a role in preventing characters printed with toner or the like of electronic copiers or characters written with water-based ink or the like when used as correction tools. However,
Since this dioxane has a high freezing point of about 11.8 degrees Celsius, it is difficult to use it in winter or the like, and the freezing point is lowered by the above-mentioned alcohols.

Alcohols are preferably in a proportion of about 50 to 150% with respect to dioxane. In this embodiment, N-butanol is used, but in a proportion of about 100% with respect to dioxane.

Next, a resin such as polyacrylate is added as a binder, and the mixture is heated and dissolved at a temperature of 80 to 110 degrees Celsius with stirring. The amount of this resin is about 5 to 15% of the whole.

Then, after adding a pigment dispersant (a fatty acid-based polyvalent carboxylic acid in this example) in an amount of about 0.2 to 1% in order to reduce the viscosity, in order to improve the concealment of characters to be erased, An extender such as titanium oxide or calcium carbonate is added in an amount of about 30 to 70% (50% in this embodiment) with respect to the whole, and heat treatment is performed at a temperature of 80 to 110 degrees Celsius with stirring as well. Perform The extender has an expander property.

Finally, these mixed liquids are stored in a desired container and cooled, and solidified to obtain a solid corrector. In this embodiment, the cooling is performed at a normal room temperature.

By adjusting the amount of the benzalized sorbite as the gelling agent, the hardness in the solid state can be adjusted, and a solid modifier having a desired hardness can be obtained. In the present embodiment, the hardness is applied by gently tracing over the character, and the character can be concealed without any change from the liquid correction liquid, but it does not hang or spread even when the paper is set up. Absent.

FIG. 2 is an example in which the solid correction agent (1) obtained by the production method according to the present invention is molded into a poppy rubber shape, and FIG. 3 is molded as a core having a diameter of several millimeters, and the whole is made into a pencil shape. FIG. 4 shows an example in which the whole is formed into a lipstick shape by molding into a rod shape.

Not limited to these examples, but the obtained solid modifier (1)
Can be formed into a desired solid shape and can be variously formed. Since the obtained solid corrector (1) has volatility, it is necessary to prepare a lid (2) or the like as shown in the figure to prevent evaporation.

Further, in the solid correction agent (1) according to the present invention, a colored solid correction agent is added by mixing a predetermined pigment or the like so as to be able to cope with correction of characters written on colored paper such as yellow or pink. It may be.

(Effect of the Invention) As described above, in the method for producing a solid correction agent according to the present invention, a benzalized sorbite or a derivative thereof as a gelling agent is added to a conventional liquid correction liquid by using a commonly used apparatus. Can be formed into a solid form having a predetermined hardness, and a mixture of dioxane and alcohols is used as a solvent, so that it can be widely used without icing even at room temperature. It provides a solid corrector that can be used.

This manufactured solid correction agent can correct only the character that you want to correct even if it is fine, and the correction liquid is applied in a large amount as in the past, so that even the next character required is erased, or the wall etc. This has the effect that there is no danger of dripping even when the characters on the paper pasted on are corrected.

Furthermore, the bottles are not accidentally knocked down and important documents are not damaged, and the concentration of the solution is so high that there is no need to replenish the solution or to have to shake the bottle appropriately. It also has an effect.

Of course, since the modifying agent according to the present invention is solid, it goes without saying that it is convenient to carry it from room to room in an office.

[Brief description of the drawings]

FIG. 1 is a flowchart showing a method for producing a solid corrector, FIG. 2 is a perspective view of an embodiment in which a solid corrector according to the present invention is formed into a poppy rubber shape, and FIG. FIG. 4 is a perspective view of a lipstick-shaped embodiment, and FIG. 5 is a perspective view of a conventional liquid correction fluid.

Claims (5)

(57) [Claims] 1. A composition comprising: a) dioxane and an alcohol as a solvent; b) benzalized sorbite or a derivative thereof as a gelling agent; c) a resin as a binder; d) a pigment dispersant; and e) a pigment. A solid corrector characterized by the following. 2. The solid corrector according to claim 1, wherein the alcohol as the solvent is N-butanol, and has a ratio of 50 to 150% with respect to dioxane. 3. The solid modifier according to claim 1, wherein the resin as the binder is a polyacrylate or a polymethacrylate. 4. The solid modifier according to claim 1, wherein the pigment is titanium oxide or calcium carbonate. 5. The solid modifier according to claim 1, wherein the pigment dispersant is a fatty acid-based polycarboxylic acid.