JPH04189199A - Solid retouching material - Google Patents

Abstract

PURPOSE:To strengthen a corrected film and improve its fixing properties by using white pigment, wax, terpene resin and/or terpene resin derivative as constituent materials. CONSTITUTION:The subject product is composed of white pigment, wax, terpene resin and/or terpene resin derivative. The white pigment is used for concealing handwriting and an image. Therefore, the recommended white pigment is titanium oxide from a viewpoint of concealing capability, and the recommended dosage is about 40 to 90wt.% for the total weight of a solid retouching material. Wax is used for improvement of application performance, and the recommended dosage is about 10 to 50wt.% of the total amount of the solid correction product excepting powder such as pigment. In addition, it is possible to use one type or more than two types of resin and/or resin derivatives under appropriate blending formulation. The recommended dosage of the resin and/or resin derivatives is about 10 to 60wt.% of the total weight of the solid retouching material excepting powder such as pigment. Further the recommended softening point of the resin and/or resin derivatives is 40 to 90 deg.C. Thus it is possible to improve the strength and fixing properties of a corrected coat.

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. The present invention relates to a solid correction tool for concealing and correcting printer prints and other printed matter, and more particularly relates to a solid correction tool with excellent strength and fixing properties of correction coatings.

(Problem M to be solved by the prior art and 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, resin, and a dispersion medium for dispersing the 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 after the coating film had completely dried, corrections such as rewriting could be made on the coating film. 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, making it difficult to rewrite. It lacked promptness.

This waiting time is the time required for the solvent to evaporate. Therefore, in order to shorten this waiting time, it is possible to use a highly volatile solvent, but in order to virtually eliminate this waiting time, it is basically impossible to use a solvent. . That is, in order to eliminate waiting time, the minimum requirement is that the correction tool itself be a solid material in which a white pigment is dispersed, and that the solid material be coatable. Examples of such solid materials that can be coated include drawing materials such as crayons, which generally consist of pigments, waxes, and oils. However, when white pigments are simply dispersed in wax or oil, the coating film after application is too soft to write on with a writing instrument, and furthermore, the fixation of the coating film is poor, so it cannot be easily used on hands, fingers, etc. The coating film easily spreads due to abrasion, which not only fails to fulfill its original purpose, but also causes another problem of staining the area around the coated area.

(Means for Solving the Problems) The present invention has been made based on these circumstances, and basically makes full use of the advantages of solid correction tools, and also enables writing using a writing instrument. In addition, we have conducted extensive research to find a coating that can form a coating that has enough strength and adhesion to prevent it from easily spreading due to rubbing from fingers, etc., and we have found that terpene resins and/or terpene resin derivatives are optimal. This discovery led to the completion of the present invention.

That is, the gist of the present invention is a solid correction tool comprising at least a white pigment, a wax, and a terpene resin and/or a terpene resin derivative.

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.
, R-310, A-110, A-150, R-
5N (manufactured by Sakai Chemical Industry ■), Tybake R-580
, R-550, R-930, A-100, A-
220 (above, 5 Hara Sangyo 11. Kronos KR-310,
KR-380, KR-480, KA-10, K
Examples include A-20 and KA-30 (manufactured by Titanium Kogyo).

These white pigments can be used alone or in an appropriate 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% by weight based on the total amount of the solid correction tool. % or more and 90% by weight or less. This is because if the proportion of white pigment used is less than 40% by weight, the hiding power for handwriting and images will be insufficient and letters may be visible through them, and if it exceeds 90% by weight, the ability to form a coating will decrease. This is because there are cases.

Waxes are used to improve application performance, and include animal waxes such as beeswax, spermaceti wax, and insect white wax, vegetable waxes such as candelilla wax, carnauba wax, and wood wax, montan wax, Natural waxes such as mineral waxes such as osikerite, petroleum waxes such as paraffin wax and microcrystalline wax, Fischer-Tropsch wax, low molecular weight polyethylene and derivatives thereof, derivatives of montan wax, paraffin wax, and microcrystalline wax, cetyl Examples include synthetic waxes such as alcohol, stearic acid, polyethylene glycol stearate, and castor wax. These waxes can be used alone or in combination of two or more, and the amount used is 10% of the total amount of the solid correction tool excluding powder such as pigments.
~50% by weight is preferred.

The terpene resin and/or terpene resin derivative used in the present invention is a dispersion medium for the above-mentioned white pigment, and is used to form a coating film with high strength and strong fixability. The terpene resin is an α-pinene polymer resin from the YS Resin A series (Yasuhara Chemical ■
), YS Resin PXN series (manufactured by Yasuhara Chemical Co., Ltd.) as a β-pinene polymer resin, YS Resin PX series (manufactured by Yasuhara Chemical Co., Ltd.) as a terpene polymer resin (a copolymer of α-pinene, β-pinene, and dipentene), and the S series (manufactured by Yasuhara Chemical Co., Ltd.) , manufactured by Yasuhara Chemical ■), etc. The terpene resin derivative is YS Resin T as an aromatic modified terpene resin.
o series (manufactured by Yasuhara Chemical ■), hydrogenated terpene resins such as Clearon P series, S series, and Clearon series (manufactured by Yasuhara Chemical ■), terpene-phenol copolymer resins such as YS Polyster 2000, Clearon S
series, S series, Mighty Ace G series (
(manufactured by Yasuhara Chemical ■). These resins and/or their resin derivatives.

It can be used alone or as a mixture of two or more, and the amount used is 1 to 1% of the total amount of the solid correction tool excluding powders such as pigments.
0 to 60% by weight is preferred. In addition, its softening point is 40~
Preferably the temperature is 90°C.

This is because when the temperature is less than 40'C, the strength of the coating film is somewhat insufficient, the fixing properties are low, and there is a tendency for it to spread easily. This is because the touch tends to decrease.

In addition to the above ingredients, mica, clay,
Of course, it can be used in combination with fillers such as kaolin, colorants such as organic and inorganic colored pigments, plasticizers such as dibutyl phthalate, dioctyl phthalate, and liquid rubber, and even surfactants.

This solid correction tool is prepared by heating, stirring, and mixing the above-mentioned components, and if necessary, kneading them with a mixing machine such as a kneader or roll mill.
It can be obtained by pouring it into a mold in a molten state, or by injecting, press-fitting, or extruding it, and cooling and solidifying it.

(Function) The terpene resin and/or terpene resin derivative forms a hard, sticky film. Therefore, when this is used, the film will firmly adhere to the surface to be coated, and even when writing with a writing instrument, the film will not be scraped off by the pen tip, making it easy to write, and the film will be easily applied by rubbing with fingers, etc. There is no possibility that the film will stretch.

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

Titanium oxide on lost seed milk 60 parts (Titone 5R-1) Montan wax 5 parts YS resin PXI○○0 20 parts (softening point: 100°C
) Diheptadecyl ketone 8 parts Pentaerythrityl tetrastearate 7 parts The above components were cross-dispersed using two heated rolls, poured into a mold and cooled to obtain a solid correction tool.

Inugo 1" Titanium oxide 55 parts (Tie Bake R550) Castor wax 1 part ys resin TO-85' 18 parts (softening point: 8
(5°C) Diundecyl ketone 9 parts Pentaerythrityl tetrastearate 8 parts The above ingredients were prepared in the same manner as in Example 1 to obtain a solid correction tool.

Lost 1 square ^ Titanium oxide 70 parts (Kronos KR-380) Carnauba wax 4 parts Clearon M-105 10 parts (softening point: 105°C) Diheptadecyl ketone 7 parts Pentaerythrityl tetrastearate 9 parts The above ingredients were used in Examples A solid correction tool was obtained in the same manner as in 1.

Titanium oxide 75 parts (Kronos KA-10) Rice wax 3 parts YS resin PX30ON 8 parts (Softening point: 3
0'C) Diheptadecyl ketone 9 parts Pentaerythrityl tetrastearate 5 parts The above ingredients were prepared in the same manner as in Example 1 to obtain a solid correction tool.

Titanium pentoxide 65 parts (Kronos KR-310) Microcrystalline wax 7 parts YS resin PX600 6 parts (softening point 260℃)
) YSL/Jin P X 700 5 parts (
Softening point near 0'C) Diheptadecyl ketone 9 parts Pentaerythrityl tetrastearate 9 parts The above ingredients were used in the same manner as in Example 1 to obtain a solid correction tool.

A solid correction tool was obtained in the same manner as in Examples 1 to 5, except that the terpene resin and terpene resin derivative were removed from the components of Examples 1 to 5.

[Effects of the Invention] Using the solid correction tools obtained in Examples 1 to 5 and Comparative Examples 1 to 5 above, a rewriting property test and a coating film fixing property test were conducted.

The results are shown in Table 1.

Rewriting property test: Using a commercially available black oil-based ballpoint pen (BK-70, manufactured by Pentel ■) on the corrected surface of the test piece,
A straight line was written with a writing load of g, and the handwriting was observed.

O: Good handwriting is obtained. △: The paint film is slightly dented, but handwriting that does not pose any practical problem is obtained. The condition of the coating film was observed by rubbing while adding it.

O: No change X: Spreading and peeling of the coating occurred Test piece: Characters were written on high-quality paper with the above oil-based ballpoint pen and completely covered up using a solid correction tool.

As explained in detail above, the solid correction tool according to the present invention has excellent coating film strength and fixing properties, so it can be rewritten easily and the area around the applied area is not stained. It is something that has certain characteristics.

Claims (1)

[Claims] A solid correction tool comprising at least a white pigment, a wax, and a terpene resin and/or a terpene resin derivative.