JPH054496A - Solid corrector - Google Patents

Abstract

PURPOSE:To improve the dry state of a rewriting and obtain a satisfactory bending resistance by producing a solid corrector from a masking material, wax and fiber-like inorganic substance to make a masking correction of the writing formed by water and oil ink or the impression made by a printer. CONSTITUTION:A solid corrector consists of a masking material, wax and fiber-like inorganic substance. As the masking material, a white pigment such as zinc oxide, barium sulfate, calcium carbonate and titanium oxide is used. As to the wax, animal wax, plant wax, mineral wax, petrolium wax and synthetic wax are used in an amount of 10-45wt.% based on the total weight of the solid corrector. As for the fiber-like inorganic substance, the natural product such as asbestos, wollastonite and sepiolite and the artificial product such as xonotlite, potassium titanate and gypsum fiber are used in an amount of 5.0-30.0wt.% based on the total weight of the solid corrector.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to the writing of water-based inks such as fountain pens, water-based felt-tip pens, water-based ballpoint pens, etc. The present invention relates to a solid correction tool for concealing correction.

[0002]

2. Description of the Related Art Conventionally, handwriting of water-based ink or oil-based ink,
Then, when hiding 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 this coating film is applied. Was completely dried and then repainted on the paint film.

However, when such a correction liquid is used, a waiting time of 10 to several tens of seconds is required from the application of the correction liquid to the complete drying of the coating film. Lacks speed. Therefore, various types of solid correction tools mainly composed of a concealing material and wax have been proposed to make the waiting time almost zero.

[0004]

However, when the correction surface is rewritten after being corrected by the solid type correction tool, the correction coating film has a stronger non-absorption surface property than paper or the like. Therefore, the problem that the handwriting dryness (the handwriting drying depends not only on the drying by evaporation of the solvent used for the ink but also on the penetration of the ink into the writing surface) and the erasure of details When the shape is made thin or flat for the purpose, the problem that it easily breaks due to the impact such as falling is caused.

[0005]

SUMMARY OF THE INVENTION The present invention has been made based on these circumstances, and basically, the advantages of a solid correction tool are fully utilized and the dryness of rewritten handwriting is improved. As a result of intensive studies to obtain a good and hard-to-break solid correction tool, the present inventors have found that a fibrous inorganic material is optimal, and finally completed the present invention.

The subject matter of the present invention is a solid correction tool comprising at least a hiding material, a wax, and a fibrous inorganic material.

The present invention will be described in detail below. The concealing material used in the present invention is used for concealing handwriting and images, and examples thereof include white pigments such as zinc oxide, barium sulfate, calcium carbonate, and titanium oxide. Is most preferably used. Titanium oxide can be used in various ways such as rutile type and anatase type.
Thaitone SR-1, R-650, R-3L, R
-310, A-110, A-150, R-5N
(Above, Sakai Chemical Industry Co., Ltd.), Taipaque R-55
0, the same R-580, the same R-930, the same A-100, the same A
-220 (above, Ishihara Sangyo Co., Ltd.), Kronos KR-
310, KR-380, KR-480, KA-1
0, the same KA-20, the same KA-30 (above, Titanium Industry Co., Ltd. product) etc. are mentioned. These white pigments can be used alone or in admixture of two or more. The amount used varies depending on the type of the hiding material, but considering the hiding power for handwriting and the like, it is preferably 40% by weight or more and 90% by weight or less with respect to the total amount of the solid correction tool. If the amount of the hiding material used is less than 40% by weight, the hiding power for handwriting and images may be insufficient and letters and the like may be visible, and if it exceeds 90% by weight, the coating film forming ability may be deteriorated. This is because there are cases.

The wax is used for improving the coating performance, and it is an animal wax such as beeswax, whale wax, and white wax, and a plant wax such as candelilla wax, carnauba wax, and wood wax. Mineral wax such as montan wax and ozokerite, paraffin wax,
Natural wax such as petroleum wax such as microcrystalline wax, Fischer-Tropsch wax, low molecular weight polyethylene and their derivatives, montan wax, paraffin wax, each derivative of microcrystalline wax, cetyl alcohol, stearic acid, polyethylene glycol stearate, Examples thereof include synthetic waxes such as castor wax. These waxes may be used alone or in admixture of two or more, and the amount thereof used is 10 to 45 relative to the total amount of the solid correction tool.
Weight percent is preferred.

The fibrous inorganic material is used to increase the dryness and breakage strength of the rewritten handwriting, and is roughly classified into natural products and artificial products. As natural products, asbestos (compositional formula: Mg ₃ Si ₂ O ₅ (OH) ₄ ), wollastonite (compositional formula: CaO · SiO ₂ ), sepiolite (compositional formula: Mg ₈ Si ₁₂ O ₃₀ (OH)) ₄ · 8H ₂ O),
In addition, there are slugs and so on obtained from slugs. As an artificial system, zonotolite (compositional formula: 6CaO-6
SiO ₂ · H ₂ O), potassium titanate (compositional formula: K ₂ O · 6
TiO ₂ ), elestadite (compositional formula: Ca ₁₀ (Si
O ₄ ) ₃ (SO ₄ ) ₃ (OH) ₂ ), gypsum senui (compositional formula:
α-CaSO ₄ ), MOS (trade name, Ube Industries, Ltd.)
Manufactured, composition formula: MgSO ₄ .5MgO.8H ₂ O) and the like. These may be used alone or in admixture of two or more, and in consideration of application as a solid correction tool, the fiber length thereof is preferably about 3 to 10 μm. The amount used is 5.0% by weight or more based on the total amount of the solid correction tool,
It is preferably 30.0% by weight or less. This has a usage of 5.
If it is less than 0% by weight, the effect cannot be expected so much, and
This is because if it is more than 30.0% by weight, the solid correction tool is hard and the coating performance is poor.

In addition to the above components, if necessary, fillers such as mica, clay and kaolin, coloring agents such as organic and inorganic colored pigments, plasticizers such as dibutyl phthalate, dioctyl phthalate and liquid rubber, and Of course, can be used in combination with a surfactant.

In the present solid correction tool, the above components are heated and mixed with stirring, and if necessary, kneaded with a kneader such as a kneader or a roll mill, and then poured into a mold in a molten state, or injection / pressurization or extrusion. It can be obtained by cooling and solidifying.

[0012]

The fibrous inorganic material used in the solid correction tool according to the present invention has a large number of minute pores formed on the surface or inside thereof and has a fibrous shape. Is absorbed into the coating film and flexibility is imparted, the dryness of the rewritten handwriting is improved, and the solid correction tool is hard to break.

[0013]

EXAMPLES Examples of the present invention will be described below. "Part" means "part by weight". Example 1 Titanium oxide (Kronos KA-10) 55 parts 130 ° F paraffin wax 30 parts Sepiolite (Milcon MS-2, fiber length 5 μm, Showa Mining Co., Ltd.) 15 parts The above components are kneaded and dispersed by a heating two-roll mill. Then, the mixture was poured into a mold and cooled to obtain a solid correction tool.

Example 2 Titanium oxide (Kronos KR-380) 65 parts 130 ° F paraffin wax 15 parts Castor wax 9 parts Sepiolite (Milcon P, fiber length 5 μm, manufactured by Showa Mining Co., Ltd.) 10 parts A solid correction tool was obtained in the same manner as in 1.

Example 3 Titanium oxide (Taipaque K-550) 68 parts T-1 wax (diheptadecyl ketone, manufactured by Kao Corporation) 11 parts Microcrystalline wax (manufactured by Nippon Oil Co., Ltd.) 5 parts Sepiolite (Milcon) SP, fiber length 5 μm, Showa Mining Co., Ltd. 7 parts Sepiolite (Miracle clay P-200V, fiber length 50 μm, Maruo Calcium Co., Ltd.) 3 parts Surfactant (Poem J-4081, Riken Vitamin Co., Ltd.) ) 5 parts The same component as the above example 1 was used to obtain a solid correction tool.

Example 4 Titanium oxide (Kronos KR-310) 52 parts Wood wax 8 parts Polyethylene wax (PEW-K2, manufactured by Chusei Wax Polymer Co., Ltd.) 13 parts Sepiolite (Milcon MS-2-2, fiber length) 5 μm, Showa Mining Co., Ltd. 11 parts Sepiolite (Milcon P, fiber length 5 μm, Showa Mining Co., Ltd.) 7 parts YS Resin PX-600 (Yasuhara Chemical Co., Ltd.) 4 parts Surfactant (Adeka Call NP-) 1000, manufactured by Asahi Denka Kogyo Co., Ltd. 3 parts The same components were used as in Example 1 to obtain a solid correction tool.

Comparative Example 1 A solid repair tool was obtained in the same manner as in Example 1 except that the Milcon MS-2 of Example 1 was removed and the same amount of titanium oxide was added.

Comparative Example 2 A solid correction tool was obtained in the same manner as in Example 2 except that Milcon P of Example 2 was removed and the same amount of titanium oxide was added.

Comparative Example 3 A solid correction tool was obtained in the same manner as in Example 3 except that Milcon SP and Miraclay P-200V of Example 3 were removed and titanium oxide was added.

Comparative Example 4 A solid correction tool was obtained in the same manner as in Example 4 except that Milcon MS-2-2 and Milcon P of Example 4 were removed and the same amount of titanium oxide was added.

[0021]

[Effects of the Invention] Using the solid correction tools obtained in Examples 1 to 4 and Comparative Examples 1 to 4, the dryness test and the drop crack test of the rewritten handwriting were conducted. The results are shown in Tables 1 and 2.

[0022]

[Table 1]

[0023]

[Table 2]

Handwriting dryness test: A commercially available black ballpoint pen (BK-70, manufactured by Pentel Co., Ltd.) was used to write a straight line on the modified surface of the test piece with a writing load of 300 g, and 3 Kg of fine paper was written on the handwriting. It was pressure-bonded with a load of and the transfer of the handwriting to the high-quality paper was observed. The time until the handwriting was not transferred was defined as the handwriting drying time. Test piece: A piece of wood-free paper on which characters were written with the above ballpoint pen and which was completely hidden with a solid correction tool.

Drop cracking test: 10 m in length as a solid correction tool
m, width 70 mm, width 3 mm molded into a flat plate-shaped product
The number of times it dropped from the height of m to the concrete floor and cracked was measured. (Omitted 10 times or more)

As described in detail above, the solid correction tool according to the present invention has a good handwriting dryness of rewritten handwriting and is practically excellent in that it does not easily break or crack even in a thin shape or a thin shape. It has excellent characteristics.

Claims (1)

Claim: What is claimed is: 1. A solid correction tool comprising at least a hiding material, a wax, and a fibrous inorganic material.