JPH03173698A - Solid correction means - Google Patents

Abstract

PURPOSE:To conceal and correct a holograph or an image by coating and to prevent the flow of the applied coating film as low as possible even when the coating film is rubbed by kneading polybutylene, a butylene copolymer, hydrogenated polyisoprene or a hydrogenated isoprene copolymer being a base material with white pigment. CONSTITUTION:White pigment has function for concealing a holograph or an image and zinc oxide, barium sulfate, calcium carbonate or titanium oxide are designated but titanium oxide is most pref. used from the aspect of concealing power. Polybutylene, a butylene copolymer, hydrogenated polyisoprene or a hydrogenated isoprene copolymer is the dispersing medium of the white pigment and used as a base material possible to coat. When the white pigment and the base material are kneaded to be formed into a room temp. correction means, the merit possessed by the solid correction means is perfectly put to practical use and a coating film hard to flow by the rubbing of a finger can be formed.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is applicable to water-based ink handwriting such as fountain pens, water-based felt-tip pens, water-based ballpoint pens, oil-based ink handwriting such as oil-based ballpoint pens, oil-based felt-tip pens, etc., and typewriters, etc. This invention relates to a solid correction tool for concealing and correcting printer printing and other printed matter.

(Prior Art and Problems to be Solved by the Invention) Conventionally, when concealing and correcting handwriting of water-based ink or oil-based ink, or images produced by various types of printing, white pigment, binder resin, and dispersion medium for dispersing this white pigment have been used. The method used was to apply a correction fluid containing a volatile solvent as a main component to the area to be corrected, and then write on the coating again after the coating film had completely dried. However, when using such a correction fluid, it is necessary to wait for several tens of seconds after applying the correction fluid until the paint film is completely dry, making it difficult to rewrite. It lacked promptness. This waiting time is the time required for the solvent to evaporate, so it may be possible to shorten this waiting time by using a highly volatile solvent, but it is still possible to virtually eliminate this waiting time. Basically, this is impossible as long as a solvent is used. Therefore, in order to eliminate waiting time, it would be better not to use a solvent, but then the coating film itself would need to be solid.
Therefore, the minimum requirement is that it is solid and that white pigment is dispersed in the material that can be applied. As a base material for such a solid yet coatable material, there are waxes that are generally used in crayons and the like as drawing materials. After application, the coating film is easily washed away by rubbing with fingers, etc., which not only fails to fulfill its original purpose, but also causes another problem of staining the area near the coating area.

(Means for Solving the Problems) The present invention has been made based on these circumstances, and basically takes full advantage of the advantages of solid correction tools, and creates a coating film that is difficult to wash off due to rubbing by fingers, etc. As a result of intensive research to obtain a base material capable of forming the This discovery led to the completion of the present invention.

That is, the gist of the present invention is a solid correction tool consisting of at least a white pigment and a base material of polybutylene or butylene-based copolymer, or hydrogenated polyisoprene or hydrogenated isoprene-based copolymer. That is.

The present invention will be explained in detail below.

The white pigment used in the present invention is used to hide handwriting and images, and examples thereof include zinc oxide, barium sulfate, calcium carbonate, titanium oxide, etc., but titanium oxide is most preferred from the viewpoint of hiding power. used. Titanium oxide can be used in various types such as rutile type and anatase type.
L, R-310, A-110, A-150, R
-5N (manufactured by Sakai Chemical Industry ■), Tybake R-58
0, R-550, R-930, A-100, A
-220 (all manufactured by Ishihara Sangyo Kyoku), Kronos KR-31
0, KR-380, KR-480, KA-10,
KA-20, KA-30 (manufactured by Titanium Kogyo ■)
etc.

These white pigments can be used alone or in a mixture of two or more, and the amount used varies depending on the type of white pigment, but considering the hiding power for handwriting etc., 40% of the total amount of the solid correction tool is used. It is desirable that the content is between 3% and 90% by weight. This is because if the proportion of white pigment used is less than 40 parts, the concealing power for handwriting and images will be insufficient, and letters etc. may be visible through them.
This is because if the amount exceeds 90% by weight, the ability to form a coating may decrease.

The polybutylene or butylene copolymer, hydrogenated polyisoprene or hydrogenated isoprene copolymer, which is solid at room temperature, used in the present invention is a dispersion medium for the above-mentioned white pigment, and has a coatable group. Tetrax 3T, Tetrax 4T, Tetrax 5T, Tetrax 6T (manufactured by Nippon Petrochemical Company) are used as polybutylene.

Examples of butylene-based copolymers include Vistanex LM-MS and LM-MH (manufactured by Exxon Chemical Co., Ltd.), and examples of butylene-based copolymers include Lupuriseal (manufactured by Japan Lupurizol Industries Co., Ltd.) as a copolymer with styrene, and isoprene There is essobutyl rubber (manufactured by Exxon Chemical Co., Ltd.) as a copolymer with
Examples of hydrogenated polyisoprene include Shell Bis 200 and Shell Bis 250 (manufactured by Shell Chemical ■), and hydrogenated isoprene copolymers include Shell Bis 50 (manufactured by Shell Chemical ■) as a copolymer with styrene. There is.

The above-mentioned polymer compounds can be used alone or in combination of two or more, and the amount used is 10 to 6
0% by weight is preferred.

In addition, in the present invention, in addition to the above-mentioned components, fillers, colorants such as colored pigments, liquid rubber, mineral oil, fats and oils, animal waxes such as beeswax, spermaceti wax, and insect white wax, candelilla wax, Natural waxes such as vegetable waxes such as carnauba wax and wood wax, mineral waxes such as montan wax and osikelite, petroleum waxes such as paraffin wax and microcrystalline wax, Fischer-Tropsch wax, low molecular weight polyethylene and their derivatives, and montan wax. Derivatives of wax, paraffin wax, microcrystalline wax, synthetic waxes such as cetyl alcohol, stearic acid, polyethylene glycol stearate, castor wax, starch, polyacrylate, Thickening and gelling of super absorbent polymer substances such as acrylic acid/vinyl alcohol copolymer, sodium polyacrylate, gar gum, locust bean gum, fin seed gum, carrageenan, alginic acid, gum arabic, gelatin, polyvinylpyrrolidone, etc. Of course, it can be used in combination with polymeric substances.

To obtain the present solid correction tool, the above components are mixed.

It can be obtained by a method such as mixing and dispersing using a conventionally known dispersing machine such as a two-roll mill, pouring into a mold, cooling, and molding.

(Function) The base material in the present invention, polybutylene or butylene copolymer, or hydrogenated polyisoprene or hydrogenated isoprene copolymer, itself has a strong self-cohesive force and is difficult to coat.

By kneading it with a large amount of white pigment, it becomes disintegrating and can be coated6.

When this is used as a base material for a solid correction tool, it can be applied as a correction tool for concealing handwriting, images, etc., and even if the coating film is rubbed, it is prevented from running as much as possible.

(Example) The present invention will be explained in detail below.

Point difference main Tetrax 3T 32 parts (polybutylene, manufactured by Nippon Petrochemical Co., Ltd.) Titanium oxide 60 parts (Kronos KR-380, manufactured by Titan Kogyo ■) Liquid polybutene
2 parts (made by Nippon Petrochemical Co., Ltd.) Silicon oxide 6 parts (Mizukashiru P, -810, made by Mizusawa Chemical Co., Ltd.) The above ingredients were mixed and dispersed using two heated rolls, poured into a mold, and cooled to obtain a solid correction tool. Ta.

Shell Bis 50 25 parts (styrene-hydrogenated isoprene copolymer, manufactured by Shell Kagaku Kyoku) Titanium oxide 50 parts 7 (Titone R-650, manufactured by Sakai Chemical Industry ■) 130°F
Parafine wax 10 parts Heavy calcium carbonate 15 parts A solid correction tool was obtained using the above ingredients in the same manner as in Example 1.

Sho Arashi Isamu A Shell Bis 200 15 parts (hydrogenated polyisoprene, manufactured by Shell Chemical ■5) Titanium oxide
82 parts (Tie Bake R-580
, manufactured by Ishihara Sangyo ■) White petrolatum
3 parts A solid correction tool was obtained using the above ingredients in the same manner as in Example 1.

Shitane Nijiku Shellbis 50 25 parts Titanium oxide 50 parts (Titone R-6
50, manufactured by Sakai Chemical Industry ■) 130'F paraffin wax 10 parts heavy calcium carbonate
14 parts Sunwet IM-1000MPS 1 part (super absorbent polymer material, manufactured by Sanyo Chemical Industries, Ltd.) A solid correction tool was obtained using the above ingredients in the same manner as in Example 1.

Comparative Example 1 130°F paraffin wax 28 parts titanium oxide 60 parts (Titon R-
650, manufactured by Sakai Chemical Industry ■) White petrolatum
6-part silicon oxide
6 parts A solid correction tool was obtained using the above ingredients in the same manner as in Example 1.

[Effects of the Invention] When the solid correction tools obtained in Examples 1 to 4 and Comparative Example 1 were applied to a paper surface and the resulting coating film was strongly rubbed with a finger, it was found that the solid correction tools obtained in Examples 1 to 4 and Comparative Example 1 were In the case of the example, the paint film ran and spread to areas other than the applied area, but in the case of the example, the paint film did not flow, and there was no possibility of staining the area near the applied area. I couldn't.

As described above, the solid correction tool according to the present invention takes advantage of the advantages of a solid correction tool, and also has significantly improved performance after application.

Claims (1)

[Claims] A solid correction tool comprising at least a white pigment and a base material of polybutylene or a butylene-based copolymer, or a hydrogenated polyisoprene or a hydrogenated isoprene-based copolymer.