JP2010152011A - Method for forming information display object of outline letter pattern form - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a technology for forming an information display object of an outline letter pattern form, which draws information such as characters, graphics and patterns easily and clearly at low cost, and is applicable to small lot production. <P>SOLUTION: The method for forming an information display object of the outline letter pattern form includes: an aqueous resin layer formation process of applying aqueous resin-containing paint on a base material; a thermosetting resin formation process of applying thermosetting resin-containing paint on the base material after the aqueous resin layer formation process; and a removal process of removing the thermosetting resin layer and the aqueous resin layer at a part corresponding to the aqueous resin layer after the thermosetting resin layer formation process. The removal process is performed when the thermosetting resin layer has pencil hardness (JIS K5600-5-4) 4B-B. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a blank pattern type information display body forming method.

  For example, on the key top body, in order from the side to be visually recognized, a light-colored layer of either a high-lightness achromatic color or a high-lightness / low-saturation chromatic color and a metallic tone layer are formed, and the light-colored layer A key top manufacturing method is proposed in which a metal tone layer and a light-colored layer are simultaneously removed by irradiating a metal tone layer from above the metal tone layer to form a letter-shaped display portion (Japanese Patent Laid-Open No. 2006). -190497).

  The surface of the synthetic resin is printed with an acrylate-based radiation curable ink containing a hydroxyl group, and after curing this, a heat-permeable dye or dye or a mixture thereof is applied, and after the heat treatment, the printing ink is removed. A method for producing character chromosomes has been proposed (Japanese Patent No. 2741115).

  In addition, the first step [the step of applying and drying an aqueous paint on the substrate to form an aqueous paint layer], the second step [the application of a photosensitive resin made of polyvinyl alcohol having a stilbazolium group introduced on the aqueous paint layer) Step of drying to form photosensitive resin layer], third step [step of exposing the photosensitive resin layer to an image], fourth step [developing and removing the unexposed portion of the photosensitive resin layer with water] A method for producing a display board, comprising sequentially performing a step of exposing a water-based paint layer] and a fifth step [step of etching and removing the water-based paint layer in an exposed portion of the water-based paint layer with an organic solvent]. It has been proposed (Japanese Patent Laid-Open No. 8-185126).

In addition, a semi-solid grease that has a desired mask pattern, such as letters, figures, and patterns, at room temperature by silkscreen printing or transfer printing on the display surface of a molded member molded into a desired shape with light-shielding plastic After printing, the surface of the molded part is painted and colored, and then the mask pattern is peeled off from the mask pattern that is molded with grease and the surface is coated, and the paint film is removed. A character extraction method for translucent display members characterized by this is proposed (Japanese Patent Publication No. 3-31595).
JP 2006-190497 A Japanese Patent No. 2741115 JP-A-8-185126 Japanese Patent Publication No. 3-31595

  By the way, in Patent Document 1, a laser device is essential. For this reason, it cannot be said that it is simply implemented at a low cost. Furthermore, it is difficult to handle small lots.

  With the thing of patent document 2, it was difficult to obtain the extraction character with a clear outline. For example, a portion that should be removed could not be removed. In addition, there is a problem in terms of cost, for example, requiring an ultraviolet curable resin. And it is not easy to carry out at low cost, and it is difficult to deal with small lots.

  Patent Document 3 also requires a photosensitive resin and cannot be simply implemented at a low cost, and it is difficult to cope with a small lot.

  Although the thing of patent document 4 does not require an advanced technique and can implement easily, the quality of the obtained character was not high. In other words, the obtained characters were missing or, on the contrary, extra portions were attached.

  Therefore, the problem to be solved by the present invention is to display information in a blank pattern format in which information such as characters, figures, and patterns is clearly drawn at a low cost, and can handle small lots. It is to provide body formation technology.

The above issues are
An aqueous resin layer forming step of applying an aqueous resin-containing coating on the substrate;
After the aqueous resin layer forming step, a thermosetting resin layer forming step of applying a thermosetting resin-containing coating on the substrate;
An information display body forming method in a blanking pattern format comprising, after the thermosetting resin layer forming step, a removing step of removing the thermosetting resin layer and the aqueous resin layer corresponding to the aqueous resin layer. And
The removal step is performed by an information display body forming method in a blanking pattern format, which is performed when the thermosetting resin layer has a pencil hardness (JIS K5600-5-4) 4B-B.

  In addition, the above-described method for forming an information display body in a blank pattern format is preferably solved by a method for forming an information display body in a blank pattern format, characterized in that the substrate is a hydrophobic substrate.

  In addition, the above-described method for forming an information display body in a blank pattern format, preferably, the method for forming an information display body in a blank pattern format is characterized in that the aqueous resin is a water-soluble resin having a hydrophilic group. .

  According to a method for forming an information display body in the above-described pattern, preferably, the thermosetting resin is a thermosetting resin having a lipophilic group. Solved.

  In addition, in the method for forming an information display body in the above-described pattern, preferably the thermosetting resin layer obtained by applying the thermosetting resin-containing paint is light-shielding. This is solved by a pattern-type information display body forming method.

  Further, in the method for forming an information display body in the above-described extraction pattern format, preferably, the removing step is a step of attaching and peeling an adhesive tape on the thermosetting resin layer at the removal-corresponding portion. This is solved by a pattern-type information display body forming method.

  In the present invention, an aqueous resin-containing coating is applied on a substrate to form an aqueous resin layer, and then a thermosetting resin-containing coating is applied to form a thermosetting resin layer. Since the thermosetting resin layer and the aqueous resin layer are removed, it is very simple and can be carried out without a special device. Therefore, an information display body in a blank pattern format can be obtained easily and at a low cost. Furthermore, the present invention can handle small lots. That is, it is suitable for production of information display bodies in a small amount and a variety of blanking pattern formats.

  And since the said removal process is performed when the said thermosetting resin layer is pencil hardness (JIS K5600-5-4) 4B-B, the character, figure, pattern, etc. of the information display body of the obtained extraction pattern form are obtained. The information has a clear outline. That is, the information is accurate, and the form is not blurred and is clear. For example, even if it is a fine line drawing, the line drawing is not dropped. Moreover, even if the extracted character has many solid portions, the character is not crushed.

  The present invention is a method for forming an information display body in a blank pattern format. In particular, it is a method for forming an information display body in a blanking pattern format that can be illuminated from the back (back) side. And the aqueous resin layer formation process of apply | coating an aqueous resin containing coating material on a base | substrate is comprised. Further, after the aqueous resin layer forming step, a thermosetting resin layer forming step of applying a thermosetting resin-containing coating on the substrate is provided. Moreover, after the said thermosetting resin layer formation process, the removal process which removes the said thermosetting resin layer and aqueous resin layer of the location corresponding to the said aqueous resin layer is comprised. And the said removal process is performed when the said thermosetting resin layer is pencil hardness (JIS K5600-5-4) 4B-B.

This will be described in more detail below.
The substrate of the present invention is preferably made of a translucent material. A transparent material is preferable, but a translucent material may be used. That is, what is necessary is just to have translucency. The substrate having such characteristics is made of an organic material or an inorganic material. For example, inorganic glass may be used, but it is preferably made of an organic resin. For example, polyester resins such as polyethylene terephthalate, polybutylene terephthalate, polytrimethylene terephthalate, polyethylene naphthalate, polyolefin resins such as polypropylene and polybutylene, styrene resins, urethane resins, polyoxymethylene resins, polyamide resins, Polycarbonate resins, acrylic resins such as polymethyl methacrylate, vinyl chloride resins, polyphenylene sulfide resins, polyphenylene ether resins, polyimide resins, polyamideimide resins, polyetherimide resins, polysulfone resins, polyethersulfone resins , Polyketone resins, polyetherketone resins, polyetheretherketone resins, polyarylate resins, polyethernitrile resins, Phenoxy resins, and the like. Of course, other various resins can be used. Particularly preferred are organic resins having heat resistance that can withstand temperatures of about 80 ° C. The organic resin preferably has a hydrophobic group (functional group).

  Characters, symbols, figures, and the like serving as an information source in a blank pattern format are provided on the base. This is configured by applying (printing) an aqueous resin-containing paint. That is, by application (printing), an aqueous resin layer (characters / symbols / graphics or the like serving as an information source in a blanking pattern format) is provided on the substrate. Here, the reason why the water-based resin-containing coating was used in particular is that (adhesion between the aqueous resin layer and the substrate) <(adhesion between the thermosetting resin layer and the substrate). Here, examples of the aqueous resin include water-dispersible resins and water-soluble resins. A more preferable resin is a water-soluble resin. In particular, a water-soluble resin having a hydrophilic group is preferred. That is, when a water-soluble resin having a hydrophilic group is used, the adhesion with the substrate becomes smaller and the peelability is improved. For example, preferred are cellulose derivatives such as methyl cellulose having a hydroxy group, carboxycellulose, and hydroxymethyl cellulose, lignin sulfonates having a carboxylic acid group, natural polymers such as shellac, and polyacrylates. Other acrylic resins such as styrene / acrylic acid copolymer salt, vinyl naphthalene / acrylic acid copolymer salt, styrene / maleic acid copolymer salt, vinyl naphthalene acid polymer salt, β naphthalene sulphonic acid An anionic polymer such as a salt of a formalin condensate, polyvinyl alcohol, polyvinyl pyrrolidone, or the like can also be used. Various printing methods can be used for application of the above-described aqueous resin-containing paint (aqueous ink). For example, a screen (frame) woven with polyester or other fibers is stretched and fixed on a frame, and a plate film (resist) is made on the frame to close the eyes other than the required image line. When printing ink is placed and the ink is squeezed with a squeegee, a printing method can be used in which the printing ink passes through the screen where there is no resist and is transferred to the substrate. In addition, a relief printing method, an offset printing method, a gravure printing method, and the like can be used as appropriate.

  After the aqueous resin layer (aqueous printing layer) is formed on the substrate, thermosetting is performed on the aqueous resin layer (aqueous printing layer) and on the substrate where the aqueous resin layer (aqueous printing layer) is not provided. A functional resin-containing paint is applied. Examples of thermosetting resins include urethane resins, phenol resins, phenoxy resins, urea resins, melamine resins, epoxy resins, silicon resins, alkyd resins, allyl resins, unsaturated polyester resins, diallyl phthalate resins, furan resins, imide resins. Typical examples include vinyl ester resins. A thermosetting resin satisfying (adhesion between the aqueous resin layer and the substrate) <(adhesion between the thermosetting resin layer and the substrate) is particularly preferable. The thermosetting resin satisfying such conditions is, for example, a thermosetting resin having a lipophilic group (hydrophobic group). Particularly preferred are urethane resins. The thermosetting resin-containing coating material contains appropriate additives in addition to the thermosetting resin. For example, inorganic fillers, flame retardants, conductivity imparting agents, ultraviolet absorbers, antioxidants, antibacterial agents, insecticides, deodorants, heat stabilizers, antistatic agents, plasticizers, lubricants, colorants, pigments, dyes A foaming agent, an antifoaming agent, and the like are appropriately used as necessary. In addition, in order to make the thermosetting resin layer comprised by application | coating (printing) of a thermosetting resin containing coating material into a light-shielding thing, a coloring agent, a pigment, or dye is used suitably. For example, carbon black (black agent) or titanium oxide (white agent) is appropriately used.

  After the thermosetting resin-containing paint (oil-based paint) is applied and dried (heated), a part of the thermosetting resin layer is removed. This removal can be performed by applying an adhesive tape to the corresponding part and peeling off the adhesive tape. That is, it is carried out by attaching and peeling an adhesive tape on the thermosetting resin layer at the removal-corresponding location. Here, it is important to perform the peeling operation using the adhesive tape when the hardness (pencil hardness: JIS K5600-5-4) of the thermosetting resin layer by drying (heating) is 4B to B. For example, when it became too hard, for example, when it was peeled off with a pencil hardness HB, the adhesiveness was too good to be peeled off, and the punching pattern was not clear (clear). On the other hand, when it was too soft, for example, when it was peeled off with a pencil hardness of 5B, part of the thermosetting resin layer was peeled off due to insufficient adhesion, and the extraction pattern was not clear (clear) .

  Hereinafter, the present invention will be described with reference to specific examples, but the present invention is not limited to the following examples.

[Example 1]
A transparent substrate made of ABS resin was used as the substrate.
Characters were printed on this transparent substrate by screen printing means (manufactured by Jujo Chemical) using an ethylene glycol mono-normal-butyl ether aqueous solution. That is, the character printing part is composed of a water-soluble resin coating film.
After the above printing, a two-part solvent type acrylic urethane paint (made by Ohashi Chemical Co.) containing titanium oxide (white pigment: light-shielding agent) and cream color content was applied over the entire surface of the transparent substrate (including the character printing part). . That is, a light-shielding / thermosetting resin coating is provided over the entire surface of the transparent substrate.
And it was made to dry at room temperature, and when the coating film became pencil hardness (JIS K5600-5-4) 4B, the adhesive tape (made by Nichiban) was bonded together, and it peeled.
As a result, the coating film at the position of the printed character was peeled off beautifully, and an accurate cut character was obtained.

[Example 2]
In Example 1, when the coating film became pencil hardness (JIS K5600-5-4) 3B, it carried out similarly except having adhered and peeled off the adhesive tape.
Also in this example, the coating film at the portion of the printed character was peeled cleanly, and an accurate blank character was obtained. It should be noted that the extracted letters were cleaner than in the case of Example 1.

[Example 3]
In Example 1, when the coating film became pencil hardness (JIS K5600-5-4) 2B, it carried out similarly except having stuck and peeled off the adhesive tape.
Also in this example, the coating film at the portion of the printed character was peeled cleanly, and an accurate blank character was obtained. It should be noted that the extracted letters were cleaner than in the case of Example 1.

[Example 4]
In Example 1, when a coating film became pencil hardness (JIS K5600-5-4) B, it carried out similarly except having stuck and peeled off the adhesive tape.
Also in this example, the coating film at the position of the printed character was peeled cleanly, and an accurate blank character was obtained as in Example 1.

[Comparative Example 1]
In Example 1, when the coating film became pencil hardness (JIS K5600-5-4) 5B, it carried out similarly except having adhered and peeled off the adhesive tape.
In this comparative example 1, the coating film (light-shielding property / thermosetting resin coating film) other than the location of the printed character was also peeled off, and the extracted character was inferior in quality.

[Comparative Example 2]
In Example 1, when the coating film became pencil hardness (JIS K5600-5-4) HB, it carried out similarly except having stuck and peeled off the adhesive tape.
In Comparative Example 2, peeling of the coating film (water-soluble resin coating film and light-shielding / thermosetting resin coating film) at the location of the printed characters was not sufficient, and the extracted characters were inferior in quality.

[Comparative Example 3]
In Example 1, it carried out similarly except having used the thermoplastic resin (vinyl chloride resin) instead of the thermosetting resin.
In Comparative Example 3, the coating film (light-shielding / thermosetting resin coating film) other than the printed characters was also peeled off, and the extracted characters were of poor quality.

Representative Katsumi Udaka

Claims (6)

An aqueous resin layer forming step of applying an aqueous resin-containing coating on the substrate;
After the aqueous resin layer forming step, a thermosetting resin layer forming step of applying a thermosetting resin-containing coating on the substrate;
An information display body forming method in a blanking pattern format comprising, after the thermosetting resin layer forming step, a removing step of removing the thermosetting resin layer and the aqueous resin layer corresponding to the aqueous resin layer. And
An information display body forming method in a blanking pattern format, wherein the removing step is performed when the thermosetting resin layer has a pencil hardness (JIS K5600-5-4) 4B-B. 2. The method for forming an information display body in a blanking pattern according to claim 1, wherein the substrate is a hydrophobic substrate. 3. The method for forming an information display body in a blanking pattern format according to claim 1 or 2, wherein the aqueous resin is a water-soluble resin having a hydrophilic group. 4. The method for forming an information display body in an extraction pattern type according to claim 1, wherein the thermosetting resin is a thermosetting resin having a lipophilic group. 5. The method for forming an information display body in a blanking pattern format according to claim 1, wherein the thermosetting resin layer obtained by applying the thermosetting resin-containing paint is light-shielding. The removal pattern type information display body forming method according to any one of claims 1 to 5, wherein the removing step is a step of attaching and peeling an adhesive tape on the thermosetting resin layer at the removal-corresponding portion.