JPH07222950A - Painting tool - Google Patents

Abstract

PURPOSE:To provide a painting tool in which a sealing property between a spherical painting body and the inward tip end of a chip is reliable, in which a painting liquid in the inside is not solidified even if it is left for a long time, and which has excellent discharging property of the painting liquid. CONSTITUTION:Regarding a painting tool in which a spherical painting body 4 is rotatable held while being exposed to an open part of the tip part of a chip 3, the spherical painting body 4 is brought into contact with the inward tip edge 31 of the chip by elastically pushing the body by a spring 5, and the chip is held at the tip mouth communicating with a painting liquid tank filled with a viscous film formable painting liquid, the gap between the inward tip edge 31 of the chip 3 and the spherical painting body 4 is sealed with a hot melt resin 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an applicator filled with a highly viscous coating liquid such as a correction liquid, a cosmetic liquid, an adhesive or a paint.

[0002]

2. Description of the Related Art An applicator having a spherical applicator has a tip attached to the tip of a coating liquid tank filled with a highly viscous film-forming coating liquid through a tip, and like a ballpoint pen, The spherical applicator is rotatably held while a part of the tip is exposed from the tip. Then, the spherical applicator is repulsed by a spring, and when not in use, the spherical applicator is brought into close contact with the inward tip edge of the chip, and a valve structure is formed by the spherical applicator and the tip end edge of the chip to prevent the application liquid from being discharged. I am trying.

When the spherical applicator is pressed against the application surface during use, the spherical applicator retreats against the elastic force of the spring and a gap is formed between the spherical applicator and the tip edge of the chip. The coating liquid adhering to the inside of the chip of the coating body is applied to the outside of the chip through this gap as the spherical coating body rotates.

[0004]

As described above, such an applicator is sealed by a valve structure composed of a spherical applicator and a tip edge of the tip. However, the sealing by this valve structure does not have a perfect hermeticity. Absent. In addition, when not in use, a cap is fitted on the front port, and this cap also covers and seals the chip to prevent the solvent of the coating liquid from evaporating. The sealing property fluctuates and deteriorates due to repeated expansion and contraction of (1) or the influence of environmental moisture. Therefore, it is difficult to maintain the sealing performance of the cap for a long period of time. Therefore, when it takes a long time from manufacture to sales, the solvent of the coating liquid is inevitably evaporated before the applicator reaches the user's hand.

On the other hand, a highly viscous film-forming coating liquid such as a correction liquid, a cosmetic liquid, an adhesive, or a paint contains a colorant, a film-forming resin, a solvent, a dispersant, etc., but at the gas-liquid interface. A film is formed, or a slight amount of solvent evaporates and the viscosity rapidly increases. Then, as the solvent evaporates, caking (solidification) is promoted. Therefore, when it takes a long time from manufacturing to sales, the thickened or solidified coating liquid easily causes shelving or pooling between the coating liquid tank and the spherical coating, and the passage of the coating liquid becomes narrow. Since it is blocked, the dischargeability of the coating liquid is reduced. In particular, since the chip contains a small spring, if the coating liquid solidifies so as to cover the spring, it is almost impossible to remove the solidified coating liquid even if external vibration is applied. . Therefore, it is very difficult to secure a passage for the coating liquid,
There is a problem that the coating liquid cannot be discharged.

Therefore, according to the present invention, the sealing property between the spherical coating material and the inward tip edge of the chip is assured, and the coating liquid inside does not solidify even after being left for a long time, and the coating liquid is discharged. The object is to provide an applicator having excellent properties.

[0007]

In order to achieve such an object, the present invention provides a spherical coated body which is rotatably held in a state where a part of the spherical coated body is exposed from a tip end opening of the tip and a spherical coated body. When the tip of the tip is held by the tip of the tip, which is elastically contacted by the spring to contact the inward tip edge of the tip and is connected to the coating solution tank filled with the highly viscous film-forming coating solution, A hot melt resin is used to seal between the inwardly-directed leading edge and the spherical coating body.

[0008]

In other words, the hot-melt resin seals the space between the inward tip edge of the chip and the spherical coating material. This hot-melt resin has an extremely excellent sealing property, and even after a long period of time, the sealing property is high. Does not fall. Therefore, the sealing property between the spherical coating material and the inward tip edge of the chip is ensured, and the coating liquid inside does not solidify even after being left for a long time, and the excellent coating liquid discharge property is obtained. You can

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the embodiments shown in the drawings. In FIG. 1, the tip 3 is fitted in the tip opening of the front opening 2. The tip 3 is formed of stainless steel in a bullet shape, and the tip of the tip 3 has a spherical coating body 4 with its tip. It is held freely rotatable while protruding from the tip 3. A spring 5, which is a coil spring, is arranged in the chip 3.
Repels the spherical applicator 4 and the inward tip edge 3 of the tip 3
The spherical mechanism 4 and the tip edge 31 of the tip 3 form a valve mechanism by being pressed against 1. Here, the spring load of the spring 5 is 5 to 300 g. Although the front port 2 is integrally connected to the coating liquid tank 1, the coating liquid tank 1
Further, from the inside of the front opening 2 to the chip 3, for example, a coating liquid which is a correction liquid having a viscosity of 30 to 40 cps and high film-forming property is filled.

FIG. 2 shows a state in which the spherical applicator 4 is rotatably held by the chip 3. The spherical applicator 4 is made of a cemented carbide ball having a diameter of, for example, 1.0 mmφ, and the ball of the chip 3 is formed. It is arranged in the house 32. Ball house 32
Is the coating liquid passage hole 3 due to the central hole 33 and the vertical groove 34.
6, the spherical applicator 4 retreats and contacts the seat portion 35 of the ball house 32 to rotate during application.

When the hot-melt resin 6 softened by heating is applied from the tip of the tip 3 to the surface of the spherical coating 4 protruding from the tip 3, the hot-melt resin 6 cools and solidifies, but solidifies. The hot melt resin 6 seals between the inward tip end edge 31 of the chip 3 and the spherical coating body 4. However, it is not necessary to apply the hot melt resin 6 to the entire surface of the spherical coating body 4 protruding from the chip 3, and it is sufficient to apply the hot melt resin 6 to the boundary portion between the tip edge 31 and the spherical coating body 4.

Examples of the hot melt resin 6 include thermoplastic resins such as ethylene-vinyl acetate resin, polyamide resin, polyester resin, polyolefin resin and rubber resin. The melt resin 6 has good adhesiveness to the chip 3 and the spherical coating 4 and has high sealing property. Therefore, the solvent of the coating liquid is prevented from evaporating, and the chip 3 is left unattended for a long time.
Since the coating liquid inside the front opening 2 does not solidify and the passage for the coating liquid is secured, it is possible to obtain excellent dischargeability of the coating liquid. Further, the hot melt resin 6 is removed at the time of first use, but the hot melt resin 6 can be easily removed by pressing the tip of the chip 3 against the application surface or the like.

[0013]

As described above, in the applicator of the present invention, the space between the inward tip edge of the chip and the spherical applicator is sealed with the hot-melt resin, so that the inward end of the spherical applicator and the chip is sealed. The sealing property between the edges is reliable, and the coating liquid inside does not solidify even when left for a long period of time, and excellent dischargeability of the coating liquid can be obtained.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an applicator.

FIG. 2 is an explanatory diagram of a main part of the embodiment of the present invention.

[Explanation of symbols]

 1 coating liquid tank 2 front port 3 tip 31 tip edge of tip 4 spherical coating 5 spring 6 hot melt resin

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location B65D 83/00

Claims (1)

[Claims] 1. The spherical coated body is rotatably held with a part thereof protruding from the tip opening of the tip, and
Coating in which the spherical applicator is elastically spring-loaded to contact the inward tip edge of the chip and is connected to a coating solution tank filled with a highly viscous film-forming coating solution and the tip is held by the tip. An applicator characterized in that a space between the inward tip edge of the chip and the spherical applicator is sealed with a hot melt resin.