JP3166285B2 - Solid Fixture - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to handwriting of water-based ink such as fountain pens, water-based sign pens and water-based ballpoint pens, oil-based ink handwriting such as oil-based ball pens and oil-based pens, and printing of typewriters and printers, and other printed materials. The present invention relates to a solid correction tool for performing concealment correction.

[0002]

2. Description of the Related Art Conventionally, handwriting of water-based ink or oil-based ink,
When concealing and correcting an image or the like by various printing, a correction liquid containing a white pigment, a resin and a volatile solvent as a dispersion medium for dispersing the white pigment as a main component is applied to the correction portion, and the coating film is applied. Was completely dried, and then correction such as rewriting was performed on the coating film.

However, when such a correction fluid is used,
In such a case , a waiting time of ten to several seconds to several tens of seconds is required from the application of the correction liquid to the complete drying of the coating film, so that the rewriting is lacking in speed. This waiting time is the time required for the solvent to evaporate. Therefore, in order to reduce the waiting time, a highly volatile solvent may be used. However, in order to substantially eliminate the waiting time, it is basically impossible to use a solvent rather than using a solvent. .

[0004] That is, in order to eliminate the waiting time, it is a minimum requirement that the correction tool itself be a solid in which a white pigment is dispersed and that the solid be coatable. . Examples of such a solid substance that can be applied include a drawing material such as a crayon generally composed of a pigment, a wax, and an oil agent.

[0005]

However, when a white pigment is simply dispersed in a wax and an oil, the coating film after application is soft, and it is difficult to re-write using a writing instrument.
Because of poor fixability, the strength of the coating film is improved by adding a resin or the like. However, when the added amount of the resin is increased so that rewriting can be performed satisfactorily, there arises a problem that coating resistance increases and coating becomes difficult.

[0006]

SUMMARY OF THE INVENTION The present invention has been made based on these circumstances. Basically, it makes full use of the advantages of a solid correction tool, and has a high coating strength and a high coating strength. After intensive studies to obtain a solid corrector which can be easily performed, they found that a good solid corrector could be obtained by combining a resin and a disintegrant, and finally completed the present invention.

That is, the present invention provides a white pigment, a resin,
Ethylene glycol stearate, tri distearate
The gist of the present invention is a solid corrector comprising at least a disintegrant selected from ethylene glycol or mica .

Hereinafter, the present invention will be described in detail. The white pigment used in the present invention is used for concealing handwriting and images, and includes zinc oxide, barium sulfate, calcium carbonate, titanium oxide, etc., and titanium oxide is most preferable in terms of concealing power. Used. Titanium oxide is rutile type,
Various types such as anatase type can be used, and specifically, Tytone SR-1, R-650, R-3L, R-31
0, the same A-110, the same A-150, the same R-5N (the above,
Sakai Chemical Industry Co., Ltd.), Taipaque R-580, R-580
550, R-930, A-100, A-220
(These are manufactured by Ishihara Sangyo Co., Ltd.), Kronos KR-310,
KR-380, KR-480, KA-10, K
A-20 and KA-30 (all manufactured by Titanium Industry Co., Ltd.)
And the like. These white pigments can be used singly or as a mixture of two or more kinds, and the amount used depends on the type of the white pigment. However, in consideration of the hiding power against handwriting and the like, 40 wt. 90% or more
% By weight or less is desirable. This is because the usage ratio of white pigment is 4
If the amount is less than 0% by weight, the concealing power against handwriting and images may be slightly insufficient, in which case, characters and the like may be seen through,
If the content exceeds 90% by weight, the ability to form a coating film at the time of application may decrease.

The resin is used to improve the strength of the coating film and to improve rewriting with a writing instrument. To illustrate one example, polyethylene, polypropylene, polymethylpentene, polybutene, polybutadiene, polystyrene, styrene butadiene resin, polyvinyl chloride, polyvinyl acetate, acrylic resin, polyvinylidene chloride, polytetrafluoroethylene, styrene acrylonitrile copolymer, Styrene butadiene acrylonitrile copolymer,
Ionomer, acrylate styrene acrylonitrile copolymer, ethylene-acrylic acid copolymer, ethylene-
Methyl acrylate copolymer, ethylene-ethyl acrylate copolymer, ethylene vinyl acetate copolymer, thermoplastic resin such as cellulose acetate, styrene, olefin, polyurethane, polystyrene, polyvinyl chloride, natural rubber Thermoplastic elastomers, other rosins,
Examples thereof include ester gum, coumarone resin, alkyd resin, terpene resin and derivatives thereof. These resins can be used alone or in combination of two or more, and the amount of the resin used is preferably 2 to 15% by weight based on the total amount of the solid corrector. If the amount used is less than 2.0% by weight, the strength of the coating film tends to be weak, and rewriting may not be possible. If the amount is more than 15% by weight, scum may increase during application. This is because it may cause a problem. Among the above resins, thermoplastic elastomer-based resins are particularly preferable in consideration of the fixing property to the paper surface.

[0010] Ethylene glycol distearate, dis
Triethylene glycol or mica disintegrates
An agent for facilitating application without reducing the strength of the solid corrector coating film. The average particle size of mica is preferably 2 μm or more. These can be used singly or in an appropriate mixture, and the amount used is preferably 2 to 15% by weight based on the total amount of the solid corrector. This is because if the amount is less than 2.0% by weight, the effect cannot be expected much, and if the amount is more than 15.0% by weight, the fixability of the coating film may be reduced.

In addition to the above components, if necessary, animal waxes such as beeswax, whale wax, insect white wax, plant waxes such as candelilla wax, carnauba wax, wood wax, montan wax, ozokerite, etc. Mineral wax, paraffin wax, natural wax such as petroleum wax such as microcrystalline wax, Fischer-Tropsch wax, low molecular weight polyethylene and derivatives thereof, montan wax, paraffin wax, each derivative of microcrystalline wax,
Waxes such as synthetic waxes such as cetyl alcohol, stearic acid, polyethylene glycol stearate, and castor wax; coloring materials such as organic and inorganic colored pigments;
Needless to say, it can be used in combination with a plasticizer such as dibutyl phthalate, dioctyl phthalate, and liquid rubber, and further, a surfactant.

In this solid correction tool, the above-mentioned components are mixed by heating, stirring, and, where necessary, kneaded with a kneader such as a kneader or a roll mill, and then poured into a mold in a molten state, or injected, pressed or extruded. Thereafter, it can be obtained by cooling and solidifying.

[0013]

The distearin used in the solid correction device according to the present invention.
Ethylene glycol, triethylene glycol distearate
The recall is dispersed in the resin to be used and becomes a plate-like crystal. Mica has a plate-like shape, which is dispersed in resin. These plate-like forms do not reduce the cohesive force of the resin itself, and in order to impart disintegration to the resin, a solid retouching tool that does not decrease the coating film strength, is good for rewriting, and is easy to apply. It is presumed to be obtained.

[0014]

Embodiments of the present invention will be described below. Example 1 Titanium oxide (Tytone SR-1) 80 parts Ethylene-vinyl acetate copolymer (MB-850, manufactured by Nippon Unicar Co., Ltd.) 13 parts Triethylene glycol distearate 7 parts The above components are kneaded with a heated two rolls. It was dispersed, poured into a mold and cooled to obtain a solid correction tool.

Example 2 75 parts of titanium oxide (Taipec R550) polyethylene 8 parts (J5019, manufactured by Ube Industries, Ltd.) 8 parts ethylene glycol distearate 7 parts 130 ° F paraffin wax 10 parts The same ingredients as in Example 1 were used. To obtain a solid correction tool.

Example 3 Titanium oxide (Kronos KR-380) 65 parts Diatomaceous earth (Celite Super Floss, manufactured by Tsuchiya Kaolin Industries, Ltd.) 8 parts Terpene resin (YS Resin PX500, manufactured by Yashara Chemical Co., Ltd.) 4 parts Ethylene-acryl Methyl acid copolymer (Yukaron-EMAXG500S, manufactured by Mitsubishi Yuka Co., Ltd.) 4 parts Triethylene glycol distearate 7 parts Castor wax 4 parts T-1 wax (manufactured by Kao Corporation) 5 parts A solid correction tool was obtained in the same manner as described above.

Example 4 Titanium oxide (Kronos KR-310) 65 parts Polystyrene-based thermoplastic elastomer (Clayton G1650, manufactured by Shell Chemical Co., Ltd.) 10 parts Mica (average particle diameter 5.5 μm, Y-3000, Inc.) 10 parts Wooden wax 5 parts Rice wax 6 parts Surfactant (Riquemar S-100, manufactured by Riken Vitamin Co., Ltd.) 4 parts The above components were made in the same manner as in Example 1 to obtain a solid corrector. Was.

Comparative Example 1 A solid correction tool was obtained in the same manner as in Example 1 except that triethylene glycol distearate of Example 1 was omitted.

Comparative Example 2 A solid correction tool was obtained in the same manner as in Example 2 except that ethylene glycol distearate of Example 2 was omitted.

Comparative Example 3 A solid correction tool was obtained in the same manner as in Example 3 except that triethylene glycol distearate in Example 3 was omitted.

Comparative Example 4 A solid corrector was obtained in the same manner as in Example 4 except that the mica in Example 4 was omitted.

Using the solid correctors obtained in Examples 1 to 4 and Comparative Examples 1 to 4 , a coating resistance test and a rewriting property test were performed. Table 1 shows the results.

[0023]

[Table 1]

Coating resistance test: A character is written on a high-quality paper using a black oil-based ballpoint pen (BK-70, manufactured by Pentel Co., Ltd.).
Using a solid corrector, the coating resistance (easiness of coating) when hiding the character was evaluated. ○: Light and easy to apply, △: Easy to apply, ×: Heavy and difficult to apply

Rewriteability test: A straight line was written on a corrected surface of the test piece using a commercially available black ballpoint pen (BK-70, manufactured by Pentel Co., Ltd.) with a writing load of 300 g, and handwriting was observed. Specimen: A character written on high-quality paper with the above oil-based ballpoint pen and completely concealed using a solid corrector. ：: Good handwriting was obtained, △: Handwriting partially thinned, but no problem in practical use, ×: Writing impossible

[0026]

As described above in detail, the solid corrector according to the present invention has excellent characteristics of excellent coating film strength, good rewriting, low coating resistance, and excellent coating properties. Is what you are doing.

Claims (1)

(57) [Claims] 1. A white pigment, a resin, and a distearic acid ester.
Tylene glycol, triethylene glycol distearate
And a disintegrating agent selected from the group consisting of cellulose and mica .