JPH10181173A - Assembling method for printing element - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate the management of many conditions in the case of connecting and to use quick drying ink with satisfactory sealability by kneading either a printing element of porous material made of thermoplastic resin or a printing holder made of thermoplastic resin with heating material, and fusion bonding it with an infrared ray. SOLUTION: The printing element 1 is, for example, obtained by kneading thermoplastic resin with a porous material and heating material, forming kneaded material in a sheet-like state, cooling it, then treating it with substance for eluting only the porous material, and then drying it. A printer holder 3 molded by a molding machine from thermoplastic resin of the same material as that of the element 1 is aligned with the element 1 obtained by forming a connecting end face 11 of a peripheral edge in a tapered shape, and both of them are pressed by a transparent material such as a glass plate 9. Shielding plates 10 are provide between the plate 9, the element 1 and the holder 3. When the element 1 side is emitted with an infrared ray in this state, the face 11 is melted, the end of the holder 3 is further melted, and fusion bonded with the face 11 to form a molten part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for assembling a printed body made of a porous body having continuous pores made of a thermoplastic resin.

[0002]

2. Description of the Related Art Conventionally, as a method of assembling a porous printed body made of a thermoplastic resin, Japanese Patent Application Laid-Open No. 4-363285 has been proposed.
No. (hereinafter referred to as), and a print body in which a stamp surface is formed in advance and this print holder are assembled by heat welding. Japanese Patent Application Laid-Open No. 7-137410 (hereinafter referred to as "Japanese Patent Laid-Open No. 7-137410") uses a hot plate to form a stamped surface on a printed body and simultaneously heat-fuses the printed sheet with the lower edge of the print holder. In the prior arts, both use a hot plate to assemble a print body into a print holder. In both of these inventions, a hot plate is used, so that the defective rate is reduced and the assembly cannot be easily and quickly performed. This is because the hot plate must be heated, and the hot plate is pressed against the end face of the print body and the end face of the print holder. Burrs are generated on the stamped surface due to excessive rubbing, so that the joining portion becomes dirty and many defects occur. In particular, in the case of (1), since the printing is performed at the same time as the creation of the stamp face, it is difficult to balance the creation and the assembling of the printed body.

Further, Japanese Patent Application Laid-Open No. Hei 8-156382 (hereinafter referred to as "Japanese Patent Publication") is a printed body made of a thermoplastic resin, and the upper and lower edges of the printed body are melted by heat and sealed. A stamp face is made on one of the faces. In this way, it is easy to fix a printed body made of a thermoplastic resin with a receiving metal, but when using a quick-drying type of ink as described in (1), there are many methods for protecting airtightness as described in (2). Process is required, resulting in a high cost. There is no disclosure of a method for forming a stamped surface or a specific method for forming a heat-sealed portion in the invention of the above.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the need for many conditions management during joining as described above.
It is an object of the present invention to provide an assembling method that can easily and quickly assemble a printed body made of a porous material made of a thermoplastic resin into a print holder, which can also be used for a quick-drying ink that has good airtightness and can simultaneously form a stamped surface. . Another object of the present invention is to provide an assembling method in which a printed body can be easily and quickly assembled to a cylindrical print holder, and at the same time, a stamped surface is formed.

[0005]

Means for Solving the Problems A heating material is kneaded into at least one of a printed body made of a porous body made of a thermoplastic resin and a print holder made of a thermoplastic resin, and is fused and bonded by infrared rays. This is a method of assembling a printed body characterized by holding a character body, or a method of assembling a printed body characterized by performing stamping simultaneously with holding a printed body. A joint end face is provided on the periphery of the printing body,
This is a method of assembling the end face of the print holder and the end face of the print body by fusing the end face of the print holder by fusing the end face of the print body or the end face of the print holder. This is a method for assembling a printed body, characterized in that the printed body is held in a tapered shape by heat-sealing the printed body to the end face of the print holder.
Furthermore, a heating material is kneaded on a porous printed body made of a thermoplastic resin, and the printed body is provided with a joint end face,
A method of assembling a printed body, characterized in that the joining end face is fused by infrared rays, and the printed body is held in a cylindrical print holder to form a printing wheel, and a stamp face is simultaneously created. This is the method of assembling the printed body.

[0006]

A heating material is kneaded in at least one of a porous printed body made of a thermoplastic resin and a print holder 3 made of a thermoplastic resin, and the heating material is heated by infrared energy to generate heat. The surrounding thermoplastic resin is melted by heat and the porous print body and the print holder 3 are assembled and held. At this time, it is an object of the present invention that an appropriate state can be set according to the characteristics of the heat generating material, the content thereof, and the infrared energy. In the present invention, carbon can convert infrared rays into thermal energy most efficiently. Other heat-generating materials include phthalocyanine pigments, metal powders (brass powder, aluminum powder, stainless steel powder, etc.) and metal compounds (tin-indium oxide fine powder, etc.), calcium hydroxide, anhydrous silicate alumina and the like. It can be used. The most suitable range of the infrared energy from the infrared light emitting device is 0.1 to 20 joules per square, depending on the selection of the heating material and the amount of content.

With an infrared energy of less than 0.1 joule, fusion of the print holder 3 and the print body is impossible even if the amount of kneading is increased for any substance that generates heat by infrared light, and is used as a stamp face of a stamp. Impossible. With infrared energy greater than 20 joules, the energy is too strong and in the present invention, which uses a flash light emitter, the light emitter and the transparent plate (glass) themselves also obtain heat, making it impossible to create a clear stamped surface such as a fine character. The above was confirmed by experiments. As the thermoplastic resin, synthetic resins such as polyolefin resin and polyamide, polyurethane, polyester, polyvinyl, and polyacetal, styrene, vinyl chloride, olefin, polyester, polyamide, and urethane thermoplastic elastomers can also be used. . Here, the relationship between the above-mentioned infrared energy and the kneading amount of the heat generating material was confirmed by an experiment to obtain a result. As the manuscript characters, a manuscript 14 of 10th grade was used. It was done. The following Table 1 shows the determination based on the intensity of the infrared energy, the kneading amount of the heat generating material, and whether the stamp surface can be prepared or not.

[0008]

[Table 1]

Next, the print body is replaced with a cylindrical print holder 3.
In order to assemble the printing wheel, the above-described heating material is first kneaded in the printing body. Then, both joining end surfaces 1 of the printing body
1 are superimposed and pressed against a transparent plate such as a glass plate 9 which transmits infrared rays, and infrared energy is applied to the superposed portion. At this time, the two are joined at the leading end of the joining end face 11 to form a printing wheel.

FIG. 1, FIG. 2, FIG. 3, FIG.
4, 5, 6, 7, 8, and 9 will be described in more detail. Reference numeral 1 denotes a continuous porous printed body made of a thermoplastic resin. In one example, the resin used in the present invention is a polyolefin-based resin mainly composed of an ethylene-olefin copolymer, and the heating material 2 is uniformly kneaded. doing. Other thermoplastic resins that can be used are polyamide, polyurethane, polyester,
Synthetic resins such as polyvinyl and polyacetal, styrene, vinyl chloride, olefin, polyester,
Polyamide-based and urethane-based thermoplastic elastomers can also be used. Commercially available products include polyethylene, polypropylene, nylon, polyurethane, polyester, polyvinyl chloride, polyvinyl acetate, vinyl chloride vinyl acetate copolymer, polyvinyl alcohol, polyethylene terephthalate, duracon, polycarbonate and the like. Heating material 2 to be kneaded includes carbon, phthalocyanine pigment, metal powder (brass powder, aluminum powder, stainless steel powder, etc.) and metal compound (tin-indium oxide fine powder, etc.), calcium hydroxide, anhydrous silicate alumina, etc. This is where the invention can be used.

An example of a method for producing the printed body 1 is as follows. A heating device such as a heating and pressurizing kneader or a heating roll is used to knead starch, salt, sodium nitrate, calcium carbonate and the like and the heating material. . The kneaded material is formed into a sheet, cooled, and then treated with a substance that elutes only the pore material, such as water or diluted hydrochloric acid. The porosity and pore diameter of the porous printed body are determined by the particle size and kneading amount of the porous material. The porosity is between 50% and 80%, with the porosity layer starting at least 1 micron from the surface layer and may be one or two layers. 100 parts (parts by weight) of a polyolefin resin (melting temperature 70 ° C.) are softened by a hot roll heated to a temperature of 60 to 65 ° C., and 60 parts (parts by weight) of salt having an average particle diameter of 15 μm and a heating material 2 are mainly used. 0.1% for the thermoplastic resin of the material.
3% is kneaded and dispersed.

At this time, the amount of the heating material 2 is not less than 0.01% by weight and 50.0% by weight based on the thermoplastic resin as a main material.
The following can be kneaded: The polyolefin resin in which the heating material 2 and the salt are kneaded is press-molded with a thickness of 5 mm, cut into a square having a side of 10 cm, and immersed in water at room temperature. After the salt is completely eluted from the polyolefin resin, the salt is dried and the porous printed body 1 made of thermoplastic resin is dried.
Is obtained. Reference numeral 3 denotes a print holder 3 made of a thermoplastic resin of the same material as that of the print body 1 and formed by a molding machine. A slide 4 is disposed on the outer periphery, and is fitted and fixed above the print holder 3. The slide 4 is resiliently supported by a fixed ring 5 and a spring 6 supported by the slide support. The present invention is constituted by the spring 6 and the slide 4, but the constitution itself does not matter. Further, in the present invention, the heating material 2 may be kneaded not only in the print body but also in the print holder 3. A configuration in which the storage body 8 is provided on the upper part of the printing body 1 to hold the ink 15 may be used. Further, a grip 7 may be provided on the upper part of the print holder 3.

(Embodiment 1) In the case of Embodiment 1, the joining end face 11 of the peripheral portion of the printing body 1 is formed into a tapered shape and is fused to the end face of the print holder 3. The shape of the printing body 1 spreads toward the stamp face creating side. As a method of forming the printing body 1 at this time, the peripheral portion of the printing body 1 can be formed into a tapered shape by a cutting machine, a cutter, or the like. It is also possible to form a tapered shape by removing the mold from the sheet during injection molding. Further, the print holder 3 is made of the same material of the same grade as the print body 1. And print holder 3
And the printing body 1 are aligned, and both are pressed by a transparent member such as a glass plate 9. A shielding plate 10 is provided between the glass plate 9 and the printing body 1 / printing holder 3, and the pressing force is 20
0 g / cm ² or more. In this state, when infrared rays are irradiated from the printing body 1 side, the joining end face 11 is tapered and overlaps with the end face of the print holder 3, so that the joining end face 11 is melted, and 3 is melted, and the joining end face 11 and the end face are fused to form a fused portion 13. In particular, a sheet or the like in which a shielding portion 12 that reflects or absorbs infrared energy at a portion where a stamp surface is to be formed is applied to the surface of the printing body 1 by applying a pressing force with the glass plate 9 or the like, Irradiates infrared energy.

Then, since the infrared energy does not reach the surface of the printing body 1 due to the shielding portion 12, the portion for forming the stamp surface remains porous as it is. It is possible to create a stamped surface using a positive original by using a mold heated to the porous portion or infrared energy. Here, the end face of the print holder 3 of the first embodiment has a planar shape. The reason for the fusion-bonding is that when the printing body 1 in which the heating material 2 is kneaded is used, the printing body 1 can be melted deeply. The thermal energy generated by the heat-generating material 2 of the printing body 1 that has been kneaded is also transmitted to the end face, so that the printing body 1 and the print holder 3 are fused. Further, the heating material 2 of the same material as the heating material 2 kneaded in the printing body 1 can be kneaded in the print holder 3.
At this time, the joining end face 11 of the printing body 1 and the printing holder 3
Both ends generate heat due to infrared energy, and they fuse together to form a fused portion 13, which holds the printed body 1.

(Embodiment 2) As Embodiment 2, the end face of the print holder 3 is made to have the same tapered shape as the joining end face 11 and is irradiated with infrared rays in the same manner as in Embodiment 1. The heat generating material 2 can be kneaded in the stamp holder 3 of the first and second embodiments, and can be more reliably melt-bonded.

(Embodiment 3) Embodiment 3 is a method of fusing a print holder and a printing body simultaneously with the formation of a stamp surface. The print holder 3 is brought into contact with the print body 1, and the end face of the print holder 3 is brought into contact with the joining end face 11 as in the first and second embodiments. The original 14 is arranged between the printing body 1 and the glass plate 9, and infrared rays are irradiated from the glass plate 9 side, and the printing body 1 can be assembled at the same time when the stamp surface is formed. The type of the document 14 used in the present embodiment is, for example, a positive document, and any ink 15 that forms mirror image characters or figures can be used as long as it absorbs or reflects infrared energy.
The base material of the document 14 has a transparent or translucent thickness of 50 microns or more. This is because even if the ink 15 placed on the base material is a substance that absorbs infrared rays and generates heat, the heat generated by infrared energy is not transmitted. Actually, the positive document is placed between the printing body 1 and the glass plate 9 with the surface on which the ink 15 is placed facing the glass plate 9.

In this manner, the infrared rays are emitted from the ink 15 of the positive original.
Is absorbed or reflected and does not reach the surface of the printing body 1, so that no heat is generated. The portion of the positive document other than the ink transmits infrared rays, passes through the base material, and reaches the surface of the printed body. In this way, a stamped surface is formed on the surface of the print body 1 and the end face 1 of the end face of the print holder 3 and the peripheral edge of the print body 1 are joined.
1 is fused in the same manner as in the first embodiment. The ink 15 of the positive manuscript used in this embodiment is carbon, black dye nigrosine or phthalocyanine pigment, aluminum compound, oxide metal fine powder, nitroso compound, cyanine dye, triacrylmethane dye, thiol nickel complex salt. And immonium / diimmonium dyes, naphthoquinone dyes, anthraquinone dyes and the like can be used.

(Embodiment 4) Embodiment 4 is a method of fusing the print holder 3 and the printing body simultaneously with the creation of the stamp surface. The print holder 3 is brought into contact with the print body 1, and the end face of the print holder 3 is brought into contact with the joining end face 11 as in the first and second embodiments. The original 14 is arranged between the printing body 1 and the glass plate 9, and infrared rays are irradiated from the glass plate 9 side, and the printing body 1 can be assembled at the same time when the stamp surface is formed. The type of the original 14 used in the present embodiment is, for example, a positive original, and the ink 15 for forming characters and figures of a normal image can be used as long as it reflects infrared energy. Also, manuscript 1
The substrate of No. 4 is transparent or translucent. Actually, the surface of the positive document on which the ink 15 is placed abuts on the printing body 3 side, and is arranged between the printing body 1 and the glass plate 9. In this way, when the infrared rays are irradiated, the infrared energy is reflected by the ink 15 of the positive document and does not reach the surface of the printing body 1, so that no heat is generated. In a portion other than the ink of the positive document, the infrared rays pass through the base material and reach the surface of the printed body.
In this manner, a stamped surface is formed on the surface of the print body 1 and the end face of the print holder 3 and the joining end face 11 of the peripheral portion of the print body are fused together as in the first embodiment. As the ink 15 of the positive original 14 used in this embodiment, titanium oxide or the like can be used.

(Embodiment 5) Embodiment 5 is shown in FIGS.
1, FIG. 12 and FIG. 13 will be described in more detail. In this method, the printing body 20 is assembled to a cylindrical printing wheel holder 21 to form a printing wheel 22. First, the printing body 20 is made in the same manner as in the first embodiment, the heating material 2 is kneaded, and the both ends of the printing body 20 are provided with joining end faces 23 which are point-symmetrically tapered. Then, the printing body 20 is placed on the printing wheel holder 21.
Wrap. The overlapped portion of the two joined end faces 23 of the wound printing body 20 is pressed against a transparent plate such as a glass plate 9 that transmits infrared rays, and the overlapped portion is irradiated with infrared energy. At this time, the two are joined at the leading end of the joining end surface 23 to form the printing wheel 22. As for the material, the above-mentioned thermoplastic resin can be used for the printing body 20. The material of the printing wheel holder is not particularly limited, and may be a commercially available thermoplastic resin such as polypropylene or polyethylene, or a thermosetting resin. It is also possible to fuse and hold the printing body 11 and the printing wheel holder 21 and at the same time form a stamped surface. A transparent member capable of transmitting infrared light is prepared, and a document 14 which is a positive document made of a transparent base material is printed on a side of the transparent member on which the printed body 11 is arranged, by a printed body 20.
It is arranged so that the side becomes a normal image. Next, infrared rays are radiated from the side opposite to the side where the printed body 20 is arranged. Then, a stamp surface can be created simultaneously with the attachment of the printing body 20 and the printing wheel holder 21.

[0019]

[Effect] Since the present invention is a method as described above, large-scale equipment such as a mold is not required, and a print body made of a porous body mainly composed of a thermoplastic resin can be easily and quickly printed.
It can be assembled to a stamp surface at the same time. In addition, when assembling and creating a stamp surface, it is possible to easily assemble or create the stamp surface by specifying only the intensity of the infrared energy.

[0020]

[Brief description of the drawings]

FIG. 1 is a half sectional view of a stamp according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a creation state according to the first embodiment of the present invention;

FIG. 3 is an enlarged sectional view of a state after creation according to the first embodiment of the present invention.

FIG. 4 is an explanatory diagram of a creation state according to the second embodiment of the present invention.

FIG. 5 is an enlarged sectional view of a state after preparation according to a second embodiment of the present invention.

FIG. 6 is an explanatory diagram of a document 14 used in the embodiment of the present invention.

FIG. 7 is an explanatory diagram of a creation state according to a third embodiment of the present invention.

FIG. 8 is a perspective view of a shielding plate 10 used in Examples 1 and 2 of the present invention.

FIG. 9 is an explanatory diagram of a creation state according to a fourth embodiment of the present invention.

FIG. 10 is a sectional view of a printed body according to a fifth embodiment of the present invention.

FIG. 11 is a sectional view of an assembled state according to a fifth embodiment of the present invention.

FIG. 12 is an explanatory diagram of a creation state according to a fifth embodiment of the present invention.

FIG. 13 is an explanatory perspective view of a case where a stamped surface is created and a printed body is simultaneously held according to a fifth embodiment of the present invention.

[Explanation of symbols]

 1: printed body 2: heating material 3: print holder 4: slide 5: fixing ring 6: spring 7: gripping part 8: occlusion body 9: glass plate 10: shielding plate 11: joining end face 12: shielding part 13: melting part 14: Original 15: Ink 20: Printing body 21: Printing wheel holder 22: Printing wheel 23: Joining end surface

Claims (6)

[Claims] 1. A heating material is kneaded into at least one of a printed body made of a porous body made of a thermoplastic resin and a print holder made of a thermoplastic resin, and fused by infrared rays. A method for assembling a printed body, characterized in that the printed body is held. 2. The method for assembling a printed body according to claim 1, wherein the stamped surface is formed simultaneously with holding the printed body. 3. The printing end according to claim 1, wherein a joining end face is provided at a peripheral portion of the printing body, and the end face of the printing body or the end face of the printing holder is fused to the end face of the print holder by infrared irradiation. How to assemble the printed body described. 4. The method for assembling a printed body according to claim 1, wherein a joining end face of a peripheral portion of the printed body or an end face of the print holder is tapered. 5. A heating body is kneaded in a printing body made of a porous body made of a thermoplastic resin, a joining end face is provided on the printing body, and the joining end face is fused by infrared rays. A method for assembling a printed body, characterized in that the printed circle is held by a print holder having a shape. 6. The method for assembling a printed material according to claim 5, wherein the stamped surface is formed at the same time as the joining end surface of the printed material is fused by infrared rays.