JPS62102857A - Coating tool - Google Patents

Abstract

PURPOSE:To prevent a decrease in the fluidity due to dryness by enlarging the part from the tip of a pen core to the ceiling of a cap, and integrating a body impregnated with a solvent equivalent to the solvent of a coating soln. into the part when the cap is mounted. CONSTITUTION:A sufficiently large space is provided at the recess of the cap 1, when a high-concn. coating soln. such as a character correction soln. of a white masking system is used with a felt pen system. The body 3 of a sponge, etc., impregnated with the solvent equivalent to the solvent of the coating soln. is inserted into the space. Consequently, a decrease in the fluidity of the high- concn. coating soln. due to dryness is prevented, and further the fluidity is restored by supplying a solvent to the dry pen core.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention prevents fluidity from decreasing due to drying when using a high-concentration coating liquid such as a white concealing type character correction liquid in a felt-tip pen type, and also prevents a dry pen from drying out. The purpose is to supply solvent to the core and restore fluidity.

It is well known that the white concealing type character correction liquid is now widely used not only in the industry but also in general. If this correction fluid could be used in a pen format, it would be easier to use than the conventional bottled version that is applied with a brush, so the development of a pen-type correction fluid is eagerly awaited.

However, due to the intended use of such correction fluids, the concentration of pigment is approximately twice as high as that of similar white paint marker inks, and on the other hand, the amount of solvent is kept to a minimum due to the need for quick drying properties.

Therefore, even if the pen core dries out a little, it loses fluidity and becomes impossible to apply.

For this reason, there is a desire to apply correction fluid using a pen method, in which the pen core is not impregnated with correction fluid, and the correction fluid in the container is applied directly onto the paper by overflowing it. Needle pen type correction pens, such as Pentel's "Pentel"
"Correction Fluid" and Carbon Paper's "Union Correction Fluid Pen" have only been developed. As a correction pen in the form of a felt-tip pen that is the easiest to apply, there has yet to be one that has become established in the market.

The present inventor has been researching and developing character correction liquid for use in pen format, but the problem of drying the pen tip with water-based correction liquid can be solved by washing it with readily available water to restore fluidity, so it is difficult to put it into practical use. It was easy.

However, water-based correction fluids cannot be used, organic solvent-based correction fluids are used to correct characters using water-based inks, and universal correction fluids that use naphthenic solvents, which are becoming mainstream (cannot be used with water-based or oil-based inks). The solvents used in these methods are difficult to obtain for general users.

Therefore, the present invention was carried out with the focus on the fact that the method of supplying these organic solvents is the key to the development of organic solvent-based felt-type correction pens.

In the present invention, as shown in the drawing, a sufficiently large space is provided at the back of the cap, and an impregnated body such as a sponge filled with a solvent is inserted into this space to prevent the nib from drying out. It is desirable that the volume of the impregnated body is 5% or more of the volume of the correction fluid filled in the pen container, but the impregnated body should not be replaced when it is sealed in aluminum foil, such as a capsule or a pharmaceutical tablet. Since it is also possible to supply the amount, it is not necessarily limited to 5% or more. Sponge, cotton, felt, etc. can be effectively used as the impregnating body, and the impregnating solvent should be selected from among those that do not significantly change the original physical properties of the liquid even when mixed with the liquid in the pen container. Not even.

In the present invention, if the pen core is in the form of felt or fiber bundle, if the tip of the pen core touches the impregnated material when the cap is attached, the correction fluid will become too diluted due to the strong absorbing power of the pen core. It's not appropriate. On the other hand, in the case of a pen core with a needle-shaped tip, it is more effective if the tip of the pen core is in contact with the impregnated body. Note that this type of pen with a needle-like tip is commonly called a plastic pen, etc. The material at the back of the pen is the same as that of a felt-tip pen, and the liquid that flows out of the pen container is once filled into this felt-like object, and then It is supplied to the tip using capillary action, and is functionally the same as a felt pen.

According to the present invention, when the pen core and the impregnated body are attached so that they are in contact with each other, the drying of the pen core is suppressed by the solvent vapor when the cap is attached, and the pen tip becomes too dry when the cap is accidentally forgotten. Sometimes it is possible to replenish the solvent directly to the nib by pulling it out a little so that it can reach the impregnated body on the top of the cap. The same method of replenishing the solvent can also be effectively used in the case of the plastic pen type. In the case of this type of pen, the amount of liquid consumed is extremely small, and the pen core is often not replenished with new liquid for a long period of time, causing a problem of increased concentration in the felt-like part at the rear of the pen core. In this case, the pen core is pulled out and turned in the opposite direction so that it comes into contact with the impregnated body inside the cap to replenish the solvent.

Regardless of the present invention, when using a highly concentrated correction fluid in its conventional form, there is no other way than washing it with fresh fluid in the container to recover the pen core that has dried out and cannot be painted. In this case, since the washing liquid is a quick-drying and highly concentrated liquid, it is necessary to patiently repeat the draining process many times and wait for the fluidity to recover, which is practically impossible.

With the present invention, the industry's dream of correcting letters using the felt-tip pen system has suddenly become possible with the advent of full-fledged felt-tip correction pens, including those with fine cores, which had previously been considered impossible. It has come to this.

Note that the present invention is not limited to white-concealing type correction liquid for correcting characters; for example, correction liquid for film shading in the printing process is also a concentrated solution due to its intended use, and the present invention can be effectively utilized. It is. The same is true when using some nail polishes with a pen.

The felt-tip pens covered by the present invention can be made by filling cotton or the like stuffed in a container with a coating liquid and applying the liquid that naturally flows out onto the pen core, or by filling a hollow container with a valve with the coating liquid. There are two types of so-called paint marker methods that have become popular in recent years, in which a valve is opened by pushing in a pen core, and an appropriate amount of the coating liquid in the container flows out into the pen core. Any of these can be applied, but in the case of correction fluid, etc., it is appropriate to use the latter because of its physical properties.

[Brief explanation of drawings]

The drawing is an enlarged sectional view of only the cap portion of the applicator of the present invention used in the paint marker method as an example of the present invention. Figure 1 is an example of a case where the pen core does not come into contact with the impregnated body.
FIG. 2 shows an example where the tip of the pen core contacts the impregnated body. In these figures, (1) is a cap, (2) is a pen nib holder, (3) is a solvent-impregnated body, (4) is a ring-shaped sponge, and (5) is a felt made of cylindrical fiber bundles. shaped pen nib, (6) is a plastic liquid conduit, (7
) is a metal part for holding and fixing (6).

Claims (1)

[Claims] Regarding the cap that is attached to a felt-tip pen-type applicator that is used by discharging an organic solvent-based coating liquid onto the pen core, when the cap is attached, the space volume from the tip of the pen core to the ceiling of the cap is An applicator that is sufficiently large and incorporates an impregnating body in which the space is filled with a solvent of the same type as the solvent component of the coating liquid.