JPH11151892A - Mat for calligraphy - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make curling ply and folding ply hard to arise, and improve the water-repellency by a method wherein a flexible vinyl chloride-based resin sheet is used for this mat for calligraphy. SOLUTION: For a vinyl chloride-based resin which constitutes a flexible vinyl chloride-based sheet 11, in addition to polyvinyl chloride which is a homopolymer of vinyl chloride, a copolymerized resin of vinyl chloride and other monomer, a mixture of these resins, or a mixture with other resins having a compatibility with these resins can be used. Approx. 30-60 pts.wt. of a plasticizer is added based on 100 pts.wt. of the vinyl chloride-based resin. Also, when necessary, various kinds of additives such as a stabilizer, a lubricant or an adhesion-preventive agent may be added. Then, since this sheet has a water- repellency of a certain degree, it may be used as a single body, but it is preferable that a coating film 20 by an ultraviolet ray hardening type paint containing spherical elastic beads 21 is formed at least on one surface of the sheet 11. Also, a reference line 3 which becomes a reference for a location where characters are written may be printed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a calligraphy mat used as an underlay when performing calligraphy.

[0002]

2. Description of the Related Art Conventionally, felt underlays have been used as underlays for performing calligraphy.
Further, as the above-mentioned felt underlay, there is also known one in which a reference line as a guide of a position for writing a character is printed on one side or both sides.

[0003]

The underlay made of felt, which has been conventionally used as a calligraphy underlay, has a problem that the curl and the habit tend to be easily formed, and the attached curl and the habit are hard to disappear. there were. That is, if the above-mentioned felt underlay is rolled or folded in a tubular shape to store the felt underlay, there is a problem that characters are difficult to write because the curl and the fold remain when laid on a desk. Was.

Further, since the felt underlay described above is inferior in water repellency, ink used for calligraphy penetrates,
In addition, there is a problem that the penetrated ink is difficult to dry.
Furthermore, the conventional underlay made of felt has a problem that dirt easily adheres.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems relating to the above-mentioned calligraphy underlays conventionally used, and an object of the present invention is to provide a calligraphy mat made of a material completely different from the conventional one. It is the purpose.

[0006]

A calligraphy mat according to the present invention, which has been made to solve the above-mentioned problems, is characterized by comprising a sheet made of a soft vinyl chloride resin.

The vinyl chloride resin constituting the above-mentioned sheet made of a soft vinyl chloride resin includes polyvinyl chloride which is a homopolymer of vinyl chloride, and vinyl chloride and other monomers such as ethylene, propylene and acetic acid. Vinyl, vinylidene chloride, acrylic acid, methacrylic acid, acrylic acid ester, methacrylic acid ester, maleic acid, fumaric acid, acrylonitrile, copolymer resin with alkyl vinyl ether, etc., a mixture of these resins, or compatible with these resins A mixture with certain other resins can be used.

[0008] A plasticizer is added to the vinyl chloride resin in an amount of about 30 to 60 parts by weight per 100 parts by weight of the vinyl chloride resin. Examples of the plasticizer include phthalic acid esters such as di-n-octyl phthalate, di-2-ethylhexyl phthalate, diisononyl phthalate, dibutyl phthalate, butyl benzyl phthalate, dilauryl phthalate, didecyl phthalate, diundecyl phthalate, and ditridecyl phthalate. Phosphate plasticizers such as tricresyl phosphate, trixylyl phosphate, tris (isopropylphenyl) phosphate, tributyl phosphate, triethyl phosphate, triphenyl phosphate and triethylphenyl phosphate; sebacate ester plasticizers and adipine Fatty acid ester plasticizers such as acid ester plasticizers; polyester plasticizers; trimellitate plasticizers;
A plasticizer such as an epoxy plasticizer; or a mixture of two or more kinds selected from these plasticizers can be used.

[0009] In addition to the above-mentioned plasticizer, a stabilizer, a lubricant or an anti-adhesive may be added to the above-mentioned vinyl chloride resin, if necessary.
Various additives such as an ultraviolet absorber, an antioxidant, a light stabilizer, an inorganic filler, and a colorant may be added. The types and amounts of these various additives are not particularly limited,
What is necessary is just to add the required additive in the required amount.

The finned chlorinated resin composition comprising the above-mentioned vinyl chloride-based resin, a plasticizer, and various additives added as required is prepared by a suitable method such as a calendering method or a T-die extrusion method. Formed into a sheet of thickness. The thickness of the soft vinyl chloride resin sheet in the present invention is about 0.5 to 2.0 mm, particularly 0.5 to 1.5 mm
It is desirable to be about.

The soft vinyl chloride resin sheet obtained as described above may be a transparent or translucent sheet or an opaque sheet. When the soft vinyl chloride resin sheet is a transparent or translucent sheet, when writing letters, place the example under the calligraphy mat and copy the letters written on the example. There is an advantage that you can practice. On the other hand, when the sheet made of the soft vinyl chloride resin is opaque, the advantage is that the pattern can be different between the front side and the back side when printing a reference line indicating a position for writing a character as described below. There is.

The above soft vinyl chloride resin sheet is
It may be composed of a single layer, may be composed of a plurality of layers, and when composed of a plurality of layers, the composition of each layer may be different, such as by changing the amount of plasticizer added. , May be the same. As a means for obtaining an olefin-based resin sheet having a plurality of layers, known means such as so-called coextrusion, lamination by hot pressing, and adhesion using an adhesive are employed.

The above-mentioned soft vinyl chloride resin sheet may have an embossed squeezed surface such as satin or silk on the surface.

Since the soft vinyl chloride resin sheet obtained as described above has a certain degree of water repellency, the calligraphy mat of the present invention may be a single sheet of the above soft vinyl chloride resin sheet. However, it is more preferable that at least one surface of the sheet is formed with a coating film made of an ultraviolet-curable paint containing spherical elastic beads. By forming such a coating film, scratch resistance, abrasion resistance and further water repellency are imparted to the calligraphy mat surface. In addition, ink does not penetrate, and dirt hardly adheres. In addition, the calligraphy mat of the present invention can form a coating film made of an ultraviolet-curing paint or other paint that does not contain spherical elastic beads. It is most advantageous to form a coating with a UV curable paint containing elastic beads.

The coating film is formed by applying the above coating material by an appropriate means such as a silk screen printing method or a gravure printing method, and irradiating ultraviolet rays to solidify the coating. It is desirable that the thickness of the coating film be about 5 to 30 μm. Prior to the formation of the coating film, a corona discharge treatment or the like may be applied to the surface on which the coating film is formed in order to improve the adhesion of the coating film.

Examples of the above-mentioned UV-curable paint include urethane, acrylic, urethane-acrylic,
Acrylic-epoxy-based, mercapto-derivative-based, epoxy-based, and other ultraviolet-curable paints can be used.

As the spherical elastic beads contained in the above-mentioned ultraviolet-curable coating material, spherical beads made of urethane resin, acrylic resin, urethane-acrylic copolymer resin, etc. can be preferably used. As the spherical elastic beads, those having an average particle size of about 10 to 30 μm can be suitably used.

It is desirable that the content of the spherical elastic beads contained in the above-mentioned ultraviolet curable paint is about 15 to 35 parts by weight per 100 parts by weight of the ultraviolet curable paint.

The calligraphy mat of the present invention may be printed with a reference line as a guideline for writing characters, similar to that printed on a conventional felt calligraphy underlay. Of course, a corona discharge treatment or the like may be applied to the printing surface prior to printing the reference line.

The printing of the reference line may be performed on one side only or on both sides. Is more preferred. That is, the calligraphy mat of the present invention formed by printing this reference line generally uses this printed surface as the front side (that is, the side on which the paper for writing characters is placed). In the calligraphy mat of the present invention, the above-described functions and effects cannot be sufficiently exerted unless a coating film made of an ultraviolet-curable coating material is formed on the surface that is to be the front surface side. It is more preferable to form a coating film of the above-mentioned UV-curable paint on the above-mentioned printing surface which is assumed to be used as the side. Further, by forming a coating film of the above-mentioned ultraviolet curable paint on the surface on which the above-mentioned reference line is printed, there is an advantage that the printed reference line does not easily disappear due to friction or the like. .

It is desirable that an antimicrobial agent be added to the ultraviolet-curable paint for forming a coating film in the calligraphy mat of the present invention. As described above, by including an antimicrobial agent in the ultraviolet curable paint, a calligraphy mat that is more excellent in hygiene can be obtained. As this antibacterial agent, antibacterial agents such as commonly used silver-based antibacterial agents, copper-based antibacterial agents, zinc-based antibacterial agents, organic nitrogen-sulfur compound antibacterial agents, and organic nitrogen compound-based antibacterial agents can be used. These antibacterial agents may be used alone or in combination of two or more. The addition amount of this antibacterial agent is desirably about 0.2 to 1.0 part by weight per 100 parts by weight of the ultraviolet curable coating.

It is needless to say that the above-mentioned antibacterial agent can be added to the vinyl chloride resin composition constituting the soft vinyl chloride resin sheet when the coating film is not formed by the ultraviolet curable paint. However, when added to an ultraviolet curable coating, there is an advantage that the effect is exhibited with a small amount.

The calligraphy mat according to the present invention having the above-described structure has the advantage that unlike the conventional felt-made calligraphy underlay, it is less likely to have a curl or a fold, and has an ultraviolet light containing spherical elastic beads on its surface. When a coating film of a curable paint is formed, the coating film has excellent scratch resistance and abrasion resistance.
In addition, the calligraphy mat of the present invention, in which a coating film made of an ultraviolet curable paint containing spherical elastic beads is formed on the surface, is excellent in water repellency on the surface, is hardly stained, and is easy even if ink is attached to the surface. There is also the advantage that it can be wiped off.
Furthermore, the calligraphy mat of the present invention, in which a coating film of an ultraviolet-curable paint containing spherical elastic beads is formed on the surface, is sanitary because the dirt is unlikely to adhere as described above, and is also included in the ultraviolet-curable paint. By containing an antibacterial agent,
There is also an advantage that the effect is further improved.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the calligraphy mat of the present invention. FIG. 2 is a partially enlarged sectional view of the calligraphy mat shown in FIG. Is a sheet made of a soft vinyl chloride resin;
Denotes a spherical elastic bead, and reference numeral 3 denotes a printed reference line.

The soft vinyl chloride resin sheet 11 in the example shown in FIG. 1 has a polyvinyl chloride composition obtained by adding various additives such as a plasticizer and a stabilizer to 40 parts by weight per 100 parts by weight of polyvinyl chloride. It is a 0.8 mm-thick sheet obtained by molding the product by an extrusion method.

As shown in FIG. 2, a urethane-acrylic sheet including spherical elastic beads 21 made of a urethane resin having a particle diameter of 4 to 25 μm (average particle diameter 15 μm) is provided on one surface of the sheet 11 made of a soft vinyl chloride resin. A coating film 20 of a system ultraviolet curable paint is formed. The above spherical elastic beads 2
The content of 1 is 25 parts by weight per 100 parts by weight of the ultraviolet curable paint. In addition, in the example shown in FIG. 1, prior to forming the coating film 20 of the ultraviolet curable paint, a reference line 3 is printed as a guide for a position where a character is to be written.

The coating film 20 and the reference line 3 are formed by an ultraviolet-curable paint. The reference line 3 is formed by screen printing, and then the above-mentioned ultraviolet-curable paint is screen-printed to a basis weight of 15 g / m ² . This is performed by applying the coating film and irradiating ultraviolet rays to cure the coating film 20 to form the coating film 20. In addition, the thickness of the coating film 20 in this example is:
It is about 15 μm.

In the example shown in FIG. 1, the reference line 3 for four characters is printed. However, the present invention is not limited to this, and the reference line 3 for six characters and other reference lines are printed. Alternatively, the reference line 3 may not be printed.

Also, in the example shown in FIGS. 1 and 2, the printing of the reference line 3 and the formation of the coating film 20 by the ultraviolet curable paint are performed only on one surface of the soft vinyl chloride resin sheet 11. As in the example shown in FIG.
Alternatively, the reference line 3 may be printed on both sides of the substrate 1 to form a coating film 20 of an ultraviolet curable paint. The reference line 3 at this time is
For example, the front side and the back side may be different, such as the front side for four characters and the back side for six characters.

Further, although not shown, the coating film 20 made of the above-mentioned UV-curable coating material and the coating film without the printing of the reference line 3 or the coating film only with one of them, and the coating film made of a coating material containing no spherical elastic beads And the like can also be used as the calligraphy mat of the present invention. However, in such a case, the effects described above are inferior to those in which a coating film is formed by a paint containing spherical elastic beads.

[0031]

As described in detail above, the calligraphy mat of the present invention does not have a curl or a fold like a felt calligraphy underlay.

Further, the calligraphy mat of the present invention, in which a coating film of an ultraviolet curable paint containing spherical elastic beads is formed, has excellent surface scratch resistance and abrasion resistance, so that it can be used for a long period of time. While having excellent surface water repellency,
Since dirt hardly adheres, ink does not penetrate and sanitary. And, by including an antimicrobial agent in the ultraviolet curable coating, it can be made more suitable in terms of hygiene.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a calligraphy mat of the present invention.

FIG. 2 is a partially enlarged cross-sectional view of the calligraphy mat shown in FIG.

FIG. 3 is a partially enlarged sectional view showing another embodiment of the calligraphy mat of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Calligraphy mat 11 Sheet made of soft vinyl chloride resin 20 Coating with ultraviolet curing type paint 21 Spherical elastic beads 3 Reference line

Claims (4)

[Claims] 1. A calligraphy mat which is used as an underlay when performing calligraphy, and is made of a soft vinyl chloride resin sheet. 2. The calligraphy mat according to claim 1, wherein a reference line serving as an indication of a position for writing a character is printed on at least one surface of the soft vinyl chloride resin sheet. 3. The calligraphy mat according to claim 1, wherein a coating film made of a UV-curable paint containing spherical elastic beads is formed on at least one surface of the soft vinyl chloride resin sheet. 4. The calligraphy mat according to claim 3, wherein the ultraviolet-curable paint contains an antibacterial agent.