JP2964647B2 - 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,
And when concealing and correcting images etc. 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 after this coating film is completely dried, it is rewritten on the coating film. And so on. However, when such a correction liquid is used, a waiting time of ten to several tens of seconds from the application of the correction liquid to the complete drying of the coating film is required. It was not quick. 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. . That is, in order to eliminate the waiting time, the minimum requirement is that the correction tool itself be a solid in which the 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.

[0003]

However, when a white pigment is simply dispersed in a wax and an oil, the coating film after coating becomes non-uniform. That is, when observed microscopically, there are places where the coating film adheres to the surface to be coated and places where it does not adhere, and as a result, there is a problem that the concealing property is low. Furthermore, because the coating film is soft and has poor fixability,
Rubbing of a finger or the like easily spreads the coating film, so that not only its original purpose is not fulfilled, but also another problem is caused that the vicinity of the coated portion is stained.

[0004]

SUMMARY OF THE INVENTION The present invention has been made based on these circumstances, and basically makes full use of the advantages of a solid correction tool and can easily form a uniform coating film. By doing so, a high concealing property was obtained, and intensive studies were carried out to obtain a coating film having strength and fixing properties that the coating film does not easily spread due to rubbing of a finger or the like. , One or more resins selected from the group consisting of a coumarone resin, an alkyd resin and a terpene resin, a saturated aliphatic carboxylic acid having 10 to 20 carbon atoms and 4 to 6 carbon atoms having 4 to 6 hydroxyl groups.
It has been found that a combination of an alcohol and an ester of the above is most suitable, and the present invention has been finally completed.

That is, the present invention provides a white pigment, one or more resins selected from rosin, ester gum, coumarone resin, alkyd resin and terpene resin, and a saturated aliphatic carboxylic acid having 10 to 20 carbon atoms. And four to six hides
It is a gist of the present invention is a solid corrector comprising at least an ester with an alcohol having 4 to 6 carbon atoms having a loxyl group .

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, etc., 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 is insufficient, and characters and the like may be seen through. If the amount exceeds 90% by weight, the ability to form a coating film may be reduced.

One or two selected from rosin, ester gum, coumarone resin, alkyd resin and terpene resin
More than one kind of resin is used to form a high-strength coating film and to adjust the shape of the solid correction tool. Examples of the rosin include gum rosin, wood rosin, and rosin-modified polyester resin. Examples of the ester gum include rosin esters and hydrogenated rosin esters.
Examples of the alkyd resin include a maleic alkyd resin, a phthalic alkyd resin, a phenol-modified alkyd resin, a styrene-modified alkyd resin, an acryl-modified alkyd resin, and a long, medium and short oil-modified alkyd resin. As the terpene resin, α-pinene polymer resin, β-pinene polymer resin, terpene polymer resin (α-pinene resin)
(A copolymer of pinene, β-pinene and dipentene), an aromatic modified terpene resin, a hydrogenated terpene resin, a terpene phenol copolymer resin, and the like. The amount used is 1 to the total amount of the solid corrector excluding powder such as pigment.
0-60% by weight is preferred. The softening point is 40 ~
Preferably it is 90 ° C. This is because, if the temperature is lower than 40 ° C., the strength of the coating film is slightly insufficient or dirt may be generated. If the temperature exceeds 90 ° C., the touch at the time of application tends to decrease. Because there is.

A saturated aliphatic carboxylic acid having 10 to 20 carbon atoms and 4 to 6 carbon atoms having 4 to 6 hydroxyl groups
The ester with alcohol is used for imparting plasticity and thixotropic property to the solid correction device, and the effect is remarkably exhibited when used in combination with the above resin. Specific examples of this ester include pentaerythritol tetrastearate, pentaerythritol tetrapalmitate, pentaerythritol tetramyristate, pentaerythritol tetralaurate, meso-erythritol tetralaurate, meso-eristol tetrastearate, meso-eristol tetra Margaric acid ester, mesoeristol tetramyristate, mesoeristol tetraeicosate, kyrisitol pentastearate, kyrisitol pentatridecanoate, kyrisitol pentapalmitate, arabitol pentastearate, arabitol pentapalmitate, Sorbitol hexastearate, sorbitol hexapentadecanoate, sorbitol hexapalmitate, dulcitol Kisamonodekanon esters, Deyuru shea tall hexamethylene palmitate, mannitol hexastearate, mannitol hexamyristate, mannitol hexa laurate, and the like. The amount used is preferably from 10 to 60% by weight based on the total amount of the solid corrector excluding powder such as pigment.

In addition to the above components, if necessary, animal waxes such as beeswax, whale wax, insect white wax, etc., 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 caster wax; fillers such as mica, clay, and kaolin; coloring materials such as organic and inorganic colored pigments; dibutyl phthalate; dioctyl phthalate; Needless to say, it can be used in combination with a plasticizer such as rubber and further a surfactant.

[0010] The solid corrector is prepared by mixing the above components by heating, stirring, and, if necessary, kneading them with a kneader such as a kneader or a roll mill, and pouring them into a mold in a molten state, or by injection, press-fitting or extrusion. Can be obtained by cooling and solidifying.

[0011]

The resin used in the solid correction tool according to the present invention is:
Although it has a high hardness and can form a high-strength coating film having tackiness, it cannot be applied alone. Therefore, when used in combination with the above-mentioned ester which is very bulky in molecular structure, it exhibits plasticity and can be applied. In addition, since the ester has a function of imparting thixotropic properties to the resin, a uniform coating film can be easily formed. Therefore, the solid correction tool according to the present invention can obtain a coating film having high concealing properties and excellent strength and fixability.

[0012]

Embodiments of the present invention will be described below.Example 1  Titanium oxide (Tytone SR-1) 60 parts Rosin ester (softening point: 68 ° C, ester gum, Arakawa Chemical Industry Co., Ltd.) 13 parts Pentaerythritol tetrastearate 17 parts Kneading and dispersing the above components with a heated two rolls Do
The solid correction tool was obtained by cooling.

[0013]Example 2  Titanium oxide (Taipec R550) 55 parts Maleic resin (softening point: 125 ° C., Marquid No. 1, Arakawa Chemical Industry Co., Ltd.) 13 parts Sorbitol hexapalmitate 17 parts A solid fix was obtained.

[0014]Example 3  Titanium oxide (Kronos KR-380) 70 parts Terpene resin (softening point: 70 ° C, YS resin PX700, manufactured by Yashara Chemical Co., Ltd.) 10 parts Pentaerythritol tetrapalmitate 10 parts Polyethylene wax (PEW-K2, Chusei wax polymer ( Co., Ltd.) 10 parts Surfactant (Riquemar S-100, manufactured by Riken Vitamin Co., Ltd.) 4 parts The same ingredients as in Example 1 were used to obtain a solid corrector.

[0015]Example 4  Titanium oxide (Kronos KA-310) 60 parts Water-added rosin ester (softening point: 68 ° C, ester gum H, manufactured by Arakawa Chemical Industry Co., Ltd.) 10 parts Terpene resin (softening point: 85 ° C, YS resin TO-85) 8 parts Xylitol pentastearate 9 parts Diheptadecyl ketone (wax) 5 parts The same ingredients as in Example 1 were used to obtain a solid corrector.

[0016]Comparative Example 1  Pentaerythritol tetrastearate of Example 1
Except for the same amount of white petrolatum (oil, Kosakai Pharmaceutical)
Solid) in the same manner as in Example 1 except that
I got a fix.

[0017]Comparative Example 2  Example 2 except that sorbitol hexapalmitate was removed from Example 2.
The rest was the same as in Example 2 to obtain a solid correction tool.

[0018]Comparative Example 3  Same as Example 2 except that the maleic acid resin of Example 2 was omitted.
Thus, a solid correction tool was obtained.

[0019]Comparative Example 4  The pentaerythritol tetrapalmitate of Example 3 was
A solid correction tool was obtained in the same manner as in Example 3 except that it was omitted.
Was.

[0020]Comparative Example 5  Example 4 except that xylitol pentastearate was removed.
The rest was the same as in Example 4 to obtain a solid correction tool.

[0021]

Using the solid correctors obtained in Examples 1 to 4 and Comparative Examples 1 to 5, a hiding test and a coating fixing test were performed. Table 1 shows the results.

Concealment test: A test piece was applied using a solid corrector, the Y value was measured, and the concealment ratio was calculated. Test piece: Sponge rubber (approximately 15 mm wide) containing writing ink (black ink for fountain pens, FK15N, manufactured by Pentel Co., Ltd.) was vertically applied to the surface of high-quality paper, and 300 to 3
The ink is applied at a speed of 20 cm / min so as to prevent uneven coating, and dried. Application method: Apply a solid correction tool vertically to the test piece,
Direction perpendicular to the ink application direction of the test piece, load 2 kg
f, Stroke 6 cm (the ink application part of the test piece is located at the center), and application is performed in 10 reciprocations. Measurement method: SM color computer ModelSM-4
Using a Suga Test Machine Co., Ltd., measure the Y value (A) of the solid correction tool application surface on the ink application part and the Y value (B) of the solid correction tool application surface on the non-ink application part. did. Calculation method: concealment ratio (%) = (A / B) × 100

Coating film fixability test: The corrected surface of the test piece was rubbed with a finger while applying a pressure of 2 kg, and the state of the coating film was observed. ○: No change, ×: Spreading and peeling of coating film occur

[0024]

[Table 1]

As described in detail above, the solid correction device according to the present invention can easily obtain a uniform coating film, so that it has a high concealing rate, has good performance as a correction device, and has a high fixability. Therefore, it has excellent characteristics that do not stain the vicinity of the coated portion.

Claims (1)

(57) [Claims] 1. A white pigment, one or two or more resins selected from rosin, ester gum, coumarone resin, alkyd resin and terpene resin, and a saturated aliphatic carboxylic acid having 10 to 20 carbon atoms and 4 to 6 carbon atoms. Hydroxyl groups
A solid corrector comprising an ester with an alcohol having 4 to 6 carbon atoms .