JPH04106164A - Solid retouching utensil - Google Patents

Abstract

PURPOSE:To obtain a solid retouching utensil which has an advantage as a solid and provides a coating film with high strength and hiding power by mixing a base material selected among specified (co)polymers, a white pigment, and hollow or porous particles. CONSTITUTION:A solid retouching utensil which contains a base material that is solid at ordinary temperature and selected among a polybutylene, a butylene copolymer, a hydrogenated polyisoprene, and a hydrogenated isoprene copolymer; a white pigment (titanium oxide is most desirable from the viewpoint of hiding power); and hollow particles and/or porous particles (e.g. glass microbaloons made of borosilicate glass or silica, spherical porous silica or spongy nylon powder). While conventional erasers composed mainly of volatile solvents have the shortcoming of lacking in quickness since rewriting is possible only after the completion of drying, this retouching utensil enables rewriting quickly. Because of the incorporation of the hollow or porous particles, it can form a film hard to flow even when rubbed with the finger, etc., and it has a sufficient hiding power even if the amount of the white pigment in the film is small.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is applicable to the handwriting of water-based inks such as fountain pens, water-based felt-tip pens, and water-based ballpoint pens, the handwriting of oil-based inks such as oil-based ballpoint pens, and oil-based sign pens; The present invention relates to a solid correction tool for concealing and correcting printed matter, 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, a dispersion medium for dispersing white pigment, binder resin, and white pigment has been used. The conventional 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 had completely dried.

However, when using such a correction fluid, it is necessary to wait from a few seconds to several tens of seconds for the paint film to completely dry after applying the correction fluid, which makes rewriting speedy. Since this waiting time is the time required for the solvent to evaporate, it is thought that a highly volatile solvent may be used to shorten this waiting time. However, it is basically impossible to substantially eliminate this waiting time as long as a solvent is used. Therefore, in order to eliminate waiting time at all, it would be better not to use a solvent, but in that case, the material to be applied would need to be solid from the beginning, and therefore, this correction tool itself is solid.

Moreover, a white pigment is dispersed in the applicable correction tool.

An example of such a solid material that can be coated is one in which a white pigment is simply dispersed in wax, such as crayon, which is a general solid drawing material.

However, when a white pigment is simply dispersed in wax, the coating film after application is easily washed away by rubbing with fingers or the like. Furthermore, in order to enable application in solid form, the content of white pigment must be lower than the content in the dry coating film formed by the above-mentioned correction fluid, so that sufficient hiding power cannot be obtained.

(Means for solving problems) The present invention has been made based on these circumstances.

The inventors of the present invention have basically made full use of the advantages of a solid correction tool, and created a coating film that does not easily wash away due to rubbing by fingers, etc., and a coating film that has sufficient hiding power even with a small amount of white pigment. After extensive research in order to obtain a solid correction tool having the following properties, the present invention was finally completed.

That is, the present invention provides a base material made of one or a mixture of two or more selected from polybutylene, butylene copolymer, hydrogenated polyimprene, and hydrogenated isoprene copolymer, which are solid at room temperature, and a white pigment. The object of the present invention is to provide a solid correction tool consisting of at least a hollow particle and/or a porous particle.

The details will be explained below.

Polybutylene, butylene copolymer, hydrogenated polyisoprene, and hydrogenated isoprene copolymer, which are solid at room temperature, are used as a dispersion medium for the white pigment described below and as a coatable base material. As polybutylene, Tetrax 3T, Tetrax 4T, Tetrax 5T, Tetrax 6T (the above,
Nippon Petrochemical Co., Ltd.), Vistanex LM-MS, Same L
Examples of butylene-based copolymers include M-MH (manufactured by Exxon Chemical Co., Ltd.), and examples of butylene-based copolymers include Loupriseal (manufactured by Nippon Loupurisol Industries), which is a copolymer with styrene, and Copolymer with isoprene. There is etsobutyl rubber (manufactured by Exxon Chemical), hydrogenated polyisoprenes include Shell Bis 200 and Shell Bis 250 (all manufactured by Shell Chemical), and hydrogenated isoprene copolymers include copolymers with styrene. As an example, there is Shell Bis 50 (manufactured by Shell Kagaku ■).

The above base materials can be used alone or in combination of two or more,
The amount used is 10 to 60% by weight based on the total amount of solid correction tool.
is preferred.

White pigments are used to hide handwriting and images. Examples include zinc oxide, barium sulfate, calcium carbonate, and titanium oxide, but titanium oxide is most preferably used from the viewpoint of hiding power. Titanium oxide can be used in various types such as rutile type and anatase type.
R-1, R-650, R-3L, R-310, A-110, A-150, R-5N (manufactured by 1lll of Sakai Chemical Industries), Tybake R-580, R -5
50, R-930, A-100, A-220 (manufactured by Ishihara Sangyo ■), Kronos KR-310゜KR-
380. KR-480, KA-10, KA-20
, KA-30 (manufactured by Titanium Industry Co., Ltd.), and the like.

The above white pigments can be used alone or in combination of two or more, and the amount used is preferably 40 to 90% by weight.

Hollow particles and/or porous particles are used in combination with the above white pigment to enhance hiding power.

The hollow particles may be single hollow particles having one hollow hole per particle or multi-hollow particles having a plurality of hollow holes per particle. Porous particles may have continuous pores or independent pores per particle, or may have multiple pores on the particle surface.

Specifically, the hollow particles include glass microballoons made of borosilicate glass IGIO1, IGIO G25, IGIO R,
Glass microballoon SI made of silica, glass microballoon FT102 made of insoluble glass, same F
TD202 (manufactured by Emerson & Cumming, USA), Gotto Ball B made of porous hollow silica
-6C, A-11C1 B-16C5 B-25C (
The above are Low Peik ○P-84J and ○P-62 made of inorganic hollow particles and hollow polymers manufactured by Meiki Yushi Kogyo ■.
J (manufactured by ROHM & Co., Ltd.), G
randoll series (manufactured by Dainippon Ink),
5X863 (A), 5X86 made of hollow latex
Examples include organic hollow particles such as 4 (A) and 5X865 (A) (all manufactured by Nippon Synthetic Rubber Co., Ltd.).

Specifically, the porous particles include Gotto Ball E-2G, Gotto Ball E-6G, and Gotto Ball D-11C1 made of spherical porous silica.
E-16C (all manufactured by Seiki Yushi Kogyo Kogyo), high-purity monodispersed spherical silica particles (Ube Nitto Kasei ■m), spherical porous calcium silicate obtained by the same manufacturing method as Gottu Ball, spherical porous magnesium silicate, spherical calcium carbonate,
Thyroid 74 and Thyroid 244 (manufactured by Fuji Davison Chemical Co., Ltd.) made of porous silica, Chikupolymer MBTB made of an aggregate of titanium oxide, Thyroid TP (made by Building Block Kasei Kogyo Kogyo), silica gel, silica alumina gel, S HP-609 consisting of inorganic porous particles such as alumina gel, activated clay, diatomaceous earth, and sponge-like nylon powder.
B, S HP-613, 5HP-619 (above,
(manufactured by Metal Color Co., Ltd.), Bell Fine D-10 made of granular cellulose, Bell Fine D-100. Examples include organic porous particles such as D-150 (manufactured by Kanebo Corporation).

The above-mentioned hollow particles and/or porous particles can be used singly or as a mixture of two or more, and the particle diameter is preferably 100 μm or less in consideration of the smoothness of the coating film. The amount used is preferably 0.1 to 40%.

In addition, in the present invention, in addition to the above-mentioned components, fillers, colorants such as colored pigments, stabilizers, liquid rubber, mineral oil, fats and oils, animal waxes such as beeswax, spermaceti, and insect wax, and candelilla wax are also used. , carnauba wax, vegetable wax such as wood wax, and montan wax.

Natural waxes such as mineral waxes such as osikelite, petroleum waxes such as paraffin wax and microcrystalline wax, Fischer-Tropsch wax, low molecular weight polyethylene and their derivatives, derivatives of montan wax, paraffin wax, and microcrystalline wax, cetyl Synthetic waxes such as alcohol, stearic acid, polyethylene glycol stearate, and castor wax, starch, polyacrylate, acrylic acid/vinyl alcohol copolymer, and sodium polyacrylate for the purpose of shortening handwriting drying time when rewriting with water-based ink. Of course, it can be used in combination with water thickening gelling polymers such as super absorbent polymers such as guar gum, locust bean gum, quinseed gum, carrageenan, alginic acid, gum arabic, gelatin, and polyvinylpyrrolidone.

In order to obtain the present solid correction tool, the above-mentioned components are mixed and dispersed using a conventionally known dispersing machine such as a heated two-roll roll or a Banbury mixer, and the mixture is poured into a mold under pressure and cooled to form it. It can be obtained by

(Function) Polybutylene, butylene copolymer, hydrogenated polyisoprene, or hydrogenated isoprene copolymer, which is solid at room temperature, which is the base material in the present invention, has a strong self-cohesive force and is difficult to coat. By kneading it with a large amount of powder, it becomes disintegrating and can be applied. Therefore, when this is used as a base material for a solid correction tool.

It can be applied as a concealing correction tool for handwriting, images, etc., and even if the paint film is rubbed, it will prevent the paint film from running as much as possible.

In the present invention, the hollow particles or porous particles that are dispersed in the substrate together with the white pigment are dispersed in the substrate while having air-filled spaces in the particles. The hiding power of the coating film increases as the difference between the small refractive index of the base material and the large refractive index of the white pigment increases.

Since the refractive index of air is even smaller than the refractive index of the base material, the difference between the refractive index of the white pigment and the refractive index of air in hollow particles or porous particles is the difference between the refractive index of the white pigment and the refractive index of the base material. greater than the difference. Therefore, the hiding power of a coating film in which a white pigment and hollow particles or porous particles are dispersed in a substrate is higher than that of a coating film in which only a white pigment is dispersed in a substrate.

(Examples) Hereinafter, the present invention will be explained in more detail with reference to Examples. In Examples and Comparative Examples, "1 part" indicates "part by weight."

Example 1 Tetrax 3T 30 parts (polybutylene, Nippon Petrochemical Co., Ltd.) Titanium oxide 55 parts (Titone R-650, Sakai Chemical Co., Ltd.) Glass microballoon IGIO 110 parts (U.S. Emerson & Cumming Co., Ltd.) Liquid polybutene 2
1 part (Shiraishi Polybutene HV-15, manufactured by Nippon Petrochemical Corporation) 3 parts of silicon oxide (Mizukasil P-801, manufactured by Mizusawa Chemical Industry ■) The above ingredients were mixed and dispersed using two heated rolls, and the mixture was packed in a mold and cooled to form a solid. I got the fix.

Tsugarashi Ka I Shellvis 50 7.5 parts (styrene-hydrogenated isoprene copolymer, manufactured by Shell Chemical Co., Ltd.) Shellvis 200 7.5 parts (hydrogenated polyisoprene, manufactured by Shell Chemical Co., Ltd.) Titanium oxide
60 copies (Kronos KR-380,
Made by Titan Kogyo ■) Gottu Ball B-6C15 part (porous hollow silica, made by Meiki Yushi Kogyo ■) Lanox
141ON 10 parts (lanolin-based synthetic wax, manufactured by Yoshikawa Oil Co., Ltd.) A solid correction tool was obtained using the above ingredients in the same manner as in Example 1.

Daigomachi Hishi Shell Bis 50 5 parts Shell Bis 200 10 parts Titanium oxide
80 copies (Tie Bake R-580
, Ishihara Sangyo Gakusei) Callite KT
4 parts (spherical porous calcium carbonate, manufactured by Shiraishi Calcium ■) 1 part white petrolatum The above ingredients were prepared in the same manner as in Example 1 to obtain a solid correction tool.

Comparative Example 1 130'F paraffin wax 28 parts Titanium oxide 60 parts (Titone R
-650, manufactured by Sakai Chemical Industry ■) White petrolatum
6-part silicon oxide
6 parts (Mizukashiru P-801, Mizusawa Chemical Industry 1 part) 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 3 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 paint film ran and spread to the vicinity of the area outside the application area, but in contrast to this, the paint film did not flow and staining of the vicinity of the application area was not observed in the examples.

Furthermore, the solid correction tools of Examples and Comparative Examples were coated with concealment rate measuring paper (
JIS K5400), and the 45° and ○° diffuse reflectances were calculated.

The results are shown in Table-1.

As explained above in detail, the solid correction tool according to the present invention takes advantage of the advantages of a solid correction tool, and also has high strength and hiding power of the coating film after application, and other properties at a much lower price. It is.

Claims (1)

[Claims] A base material made of one or a mixture of two or more selected from polybutylene, butylene copolymer, hydrogenated polyisoprene, and hydrogenated isoprene copolymer that are solid at room temperature, a white pigment, and hollow particles and/or A solid correction tool comprising at least porous particles.