JP2005111740A - Dry lacquer tone pencil - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pencil, on the surface of which a finely uneven coating film is formed, which has a dry lacquer tone external appearance and effects such as anti-skid, excellent gripping feeling, marbelizing of coating surface, anti-scratching of coating surface (protective film) or the like. <P>SOLUTION: This dry lacquer tone pencil has a coating film, which is formed by coating polymeric particle-containing paint so as to form finely uneven coating film on its surfaces. As a result, as the polymeric particle, an amidic polymeric particle and/or acrylic polymeric particle can be used suitably. In this case, the polymeric particle passing through the sieve of 50-500 mesh can be used suitably. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a pencil having a dry lacquer-like appearance. More specifically, the present invention relates to a pencil having a dry lacquer-like appearance having a fine uneven coating film on the surface.

  For example, the technology of dry lacquer is known in which lacquer is applied thinly on glass and dried, and then the lacquer coating film is peeled off, crushed, and the dried lacquer coating film is mixed and applied to the lacquer again. It has been. In dry lacquer, a fine and uniform concavo-convex coating with the same height of protrusions is formed, providing effects such as anti-slip, diversification of coating surface, and prevention of scratches (protection film) on coating surface It is.

  It is an object of the present invention to try to form a coating film having such a dry lacquer effect on a pencil. It has been conventionally known to form a coating film with a certain characteristic on a pencil, but it has protrusions and is a fine uneven coating film that prevents slippage, diversifies the coating surface, There is no known one that forms a coating film on a pencil that provides effects such as scratch prevention (protective film).

  That is, a lacquered pencil in which lacquers of different colors are applied in multiple layers to a pillar to form a coating film is described in Japanese Utility Model Laid-Open No. 2-126892, and the roundness formed with an ultraviolet curable paint at the end of the pencil is described. A pencil on which a coated film is formed is described in JP-A-5-8588, and a pencil shaft aqueous paint finishing method for finishing the surface of a wood pencil shaft with an aqueous paint is described in JP-A-9-193589. Also, Japanese Patent Application Laid-Open No. 2002-17441 discloses a paper-wound pencil in which patterns and characters appearing on the inner side of the peeled strip as the strip of the rolled paper is peeled off. However, a pencil that has been coated with a coating containing polymer particles to form a coating film is not yet known.

Japanese Patent Laid-Open No. 2002-17441 JP-A-9-193589 Japanese Patent Laid-Open No. 5-8588 Japanese Utility Model Publication No. 1-212692

  The present invention intends to provide a pencil having a dry lacquer-like appearance in which a fine uneven coating film is formed on the surface of a pencil without using a crushed dry lacquer coating film. In other words, a dry lacquer-like pencil that has protrusions and is a fine uneven coating film that has effects such as anti-slip, diversification of the coating surface, and prevention of scratches on the coating surface (protective film). Is to provide.

  The gist of the present invention is a dry lacquered pencil characterized by having a fine uneven coating film on the surface. More specifically, it is a dry lacquer-like pencil having a fine uneven coating film on the surface formed by applying a coating containing polymer particles. As the polymer particles, amide polymer particles and / or acrylic polymer particles can be suitably used. The polymer particles are preferably 50-500 mesh passing particles.

  As the paint, at least one selected from an epoxy paint, a urethane paint, and an acrylic paint can be suitably used. The amount of the polymer particles is preferably 10 to 30 parts by weight with respect to 100 parts by weight of the paint. Further, the coating film can be formed by a drawing coating method. The dry lacquer-like pencil having a fine uneven coating film on the surface may have a normal shape, or may have a shape in which one end is tapered.

  INDUSTRIAL APPLICABILITY The present invention has an effect that it is possible to provide a pencil having a so-called dry lacquer-like appearance, which is an appearance of a dry lacquer film formed by mixing and applying a pulverized dry lacquer coating film. That is, it has protrusions, a fine uneven coating film, anti-slip, excellent feel when held, diversification of the coating film surface, scratch prevention (protective film) of the coating film surface, and the like. In particular, since the surface of the pencil has irregularities, it has a feature that it is difficult to slip when it is held in the hand, and an excellent feel can be enjoyed.

  Hereinafter, the present invention will be described based on embodiments. First, polymer particles are mixed in a paint dissolved in a solvent. The paint used at this time may be a commercially available one. Among these, epoxy paints, polyurethane paints, and acrylic paints can be preferably used. The paint is obtained by dissolving a resin in an aromatic solvent or a ketone solvent. The amount of resin at this time is approximately 20 to 85% by weight. The polymer particles are mixed with the paint in which the resin is dissolved in this way. The amount of polymer particles to be mixed is 10 to 30 parts by weight with respect to 100 parts by weight of the paint.

  As the polymer particles, arbitrarily selected polymer particles can be used. Of these, polyamide polymer and acrylic polymer particles can be preferably used. The polymer particles can be obtained by appropriately sieving polymer powder polymerized by techniques such as emulsion polymerization, suspension polymerization, precipitation polymerization, etc., and by re-precipitation after dissolving the polymerized polymer in a solvent. Can also be obtained. The polymer particles are preferably 50-500 mesh passing particles. More preferably, it is 80-200 mesh passing particle. That is, if the particle size of the polymer particles is large (the mesh is small), the protrusion becomes large and the feel when holding a pencil is worsened. If the particle size of the polymer particle is small (the mesh is large), the protrusion is small. This is because the effects of anti-slip, diversification of the paint film surface, prevention of scratches on the paint film surface (protective film), and feel when held in the hand are reduced.

  A paint in which polymer particles are mixed is applied to a pencil to form a fine uneven film having protrusions. When applying the paint mixed with the polymer particles to the pencil, a drawing paint technique is applied. FIG. 1 shows the principle of drawing paint. The pencil 1 is passed through the paint 3 containing polymer particles, and the pencil 1 is pulled out from the small hole 4 made of the rubber plate 2. After drawing, a coating film 6 is formed on the surface of the pencil 1. When the drawing speed is high, the thickness of the coating film becomes thin, and when the drawing speed is low, the thickness of the coating film becomes thick.

  There are two methods of drawing painting: a method of painting a plurality of pencils continuously and a method of painting one pencil at a time. In the former, as shown in FIG. 2, a small hole 4 made of rubber plates 2 and 2 'is provided at the entrance where the pencil 1 enters the container 5 containing the paint 3 containing polymer particles and at the exit where the pencil exits. 4 'is provided. The plurality of pencils 1, 1 ′, 1 ″ are continuously inserted into the material container from the small coating holes 4 ′ and pulled out from the small holes 4. Coating films 6 and 6 ′ are formed on the surface of the drawn pencil 1.

  In the latter method, a small hole 4 made of a rubber plate 2 is provided at one end of a container 5 containing a paint 3 containing polymer particles. As shown in FIG. 3, the pencil 1 is inserted from the small hole 4 and then pulled out. After drawing, a coating film is formed on the surface of the pencil. In this case, in order to insert the pencil 1 into the small hole, the tip of the insertion side of the pencil 1 is preferably tapered.

  FIG. 5 shows a cross-section of the painted pencil. In a normal pencil, the coating film is flat without unevenness. This state is schematically shown in FIG. A flat coating film is formed on the surface of the pencil 1. The coating film is composed of a base coat 13, an intermediate coat 12 and a top coat 11. Of course, this is shown by way of example, and there may be a case where the coating film is a single film or a case where there are two films. On the other hand, the unevenness | corrugation based on the polymer particle 9 is formed in the surface of the pencil 1 of this invention. Although the coating film consists of the undercoat 7, the intermediate coat 8, and the top coat 10, it is not limited to this.

  The present invention will be further described based on specific examples. 20 parts by weight of 200-mesh particles of acrylic polymer were mixed with 100 parts by weight of a 70% by weight xylene solution of an epoxy paint. As shown in FIG. 2, the paint 3 containing the polymer particles was put in a container 5, and the pencil 1 was continuously inserted from the small hole 4 ′, and the pencil 1 was drawn out from the small hole 4 and painted. The painted pencil was heat-treated at a temperature of 70 ° C. for 1 hour and 15 minutes. The heat treatment temperature is generally 65 to 80 ° C., and the treatment time is about 1 to 105 hours. By the heat treatment, a solid uneven film is formed on the surface of the pencil. Since the surface of the pencil is coated with an uneven coating film, it has features such as being hard to slip and having a good feel when held by hand. In addition, the coating surface can be diversified, and effects such as prevention of scratches on the coating surface (protective film) can be brought about. In the process of undercoating and intermediate coating, it is possible to draw various designs and characters, and also designs and characters with different color tones, and finish them by overcoating with a transparent paint containing polymer particles.

  The present invention is a dry lacquer-like pencil characterized by having a fine concavo-convex coating on the surface, and more specifically, a fine concavo-convex coating on the surface formed by applying a paint containing polymer particles. It is a dry lacquer-like pencil. Since it has a fine uneven film on the surface, it has a dry lacquer-like appearance, and when it is held in your hand, it provides a non-slip feel and a good feel. Effect). For those who manufacture pencils, the diversification of pencils is promoted not only for practical use but also for design. For both users, the pencils that can be enjoyed with ease of use are provided.

It is a figure which shows the principle of drawing-out painting. It is a figure which shows the principle of continuous drawing. It is a figure which shows the principle of independent drawing. It is a figure which shows a normal coating cross section. It is a figure which shows the coating cross section of this invention which has an unevenness | corrugation.

Explanation of symbols

1, 1 ', 1''pencil
2, 2 'rubber plate
3 Paint
4, 4 'small hole
5 containers
6 Coating film
7, 13 Undercoat
8, 12 Middle coat
9 Polymer particles
10, 11 Top coat
15 cores

Claims (8)

  A dry lacquered pencil characterized by having a fine uneven coating film on the surface.   The dry lacquer-like pencil according to claim 1, which has a coating film formed by applying a paint containing polymer particles.   The dry lacquer-like pencil according to claim 2, wherein the polymer particles are amide polymer particles and / or acrylic polymer particles.   The dry lacquered pencil according to claim 2 or 3, wherein the paint is at least one selected from an epoxy paint, a urethane paint, and an acrylic paint.   The dry lacquered pencil according to any one of claims 2 to 4, wherein the polymer particles are 50-500 mesh passing particles.   The dry lacquered pencil according to any one of claims 2 to 5, wherein the amount of the polymer particles is 10 to 30 parts by weight with respect to 100 parts by weight of the paint.   The dry lacquer-like pencil according to any one of claims 2 to 7, wherein the coating film is formed by a drawing coating method. The dry lacquer-like pencil according to claim 7, wherein one end of the pencil is tapered and a coating film is formed by a drawing method.

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