JP5243759B2 - How to create stamp stamps - Google Patents

Description

  The present invention relates to an infrared exposure machine and a stamp printing surface for producing a printing surface by irradiating a thermoplastic resin porous printing material having no printing surface with infrared rays and melting and solidifying a part of the surface of the porous printing material. It relates to the creation method.

Stamps using a thermoplastic resin porous material as a printing material are widely known, and the stamp stamping surface creation method is a method using a mold as in JP-A-50-155323 and JP-A-60-193686, Various methods are known, such as a method using a thermal head printer as disclosed in Japanese Utility Model Publication No. Hei 6-45753 and Japanese Patent Laid-Open No. 7-251558 and a method utilizing heat by infrared irradiation as disclosed in Japanese Patent Laid-Open No. 8-72376.
Japanese Patent Laid-Open No. 8-72376 is very interesting as a toy because there are hobby processes such as a process of creating a document and a process of irradiating infrared rays. In the invention, a printing plate that is a porous thermoplastic resin body having open cells is brought into contact with a heating plate containing a substance that generates heat by absorbing infrared rays. The stamp face is created by bringing a document on which the image is drawn into contact with each other and irradiating infrared rays from the document side. The phenomenon is as follows.
(1) Phenomena on the original: When infrared rays are irradiated from the original side, exothermic materials such as carbon (portions where characters, figures, etc. are drawn) absorb the infrared rays and generate heat. On the other hand, infrared rays are transmitted through a portion where no exothermic substance exists (a blank portion where characters, figures, etc. are not drawn) and does not generate heat.
(2) Phenomenon on the heating plate: The portion corresponding to the heating material of the document does not generate heat because infrared rays do not reach it, and is slightly heated by the heat of the heating material of the document. On the other hand, the infrared rays that have passed through the portion of the document where no exothermic material exists are absorbed by the corresponding portion of the heating plate and generate heat.
(3) Phenomenon on the surface of the printing material: Since the temperature of the slightly heated portion of the heat generating plate is low, the thermoplastic resin porous body cannot be melted. On the other hand, since the temperature of the part of the heat generating plate that is generating heat is sufficiently high, the thermoplastic resin porous body is melted to crush the open cells.

In carrying out the invention as disclosed in Japanese Patent Application Laid-Open No. 8-72376, an infrared exposure machine that is sometimes called a thermal copying machine or a plate making machine for irradiating infrared rays is mainly used. Japanese Patent Publication Nos. 59-007371 and 10-000843 are well known.
These infrared exposure machines are such that a pressing plate is positioned so as to face the main body in a main body incorporating an infrared irradiation device having a transparent plate capable of transmitting infrared light on the upper surface, and between the transparent plate and the pressing plate. It is configured to create a stamped surface by irradiating infrared rays while sandwiching an original and a thermoplastic resin porous stamping material and applying a clamping pressure.
However, a xenon lamp or the like mainly used as an infrared irradiation device has a considerable amount of heat generation, so that it is difficult to continuously form a stamp face. This is because heat is accumulated on the transparent plate every time the xenon lamp emits light, and simply by placing the thermoplastic resin porous printing material on the heated transparent plate, the continuous bubbles are melted, and the stamp face cannot be created.
Therefore, measures such as stopping the operation until the transparent plate cools or installing a forced cooling device separately have been taken.

Japanese Utility Model Publication No. 52-001313 Japanese Patent Publication No.59-007371 JP-A-10-000843

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide an infrared exposure machine and a stamp stamp surface creation method capable of continuously creating a stamp surface.

An infrared exposure machine comprising a main body with a built-in infrared irradiation device and a transparent plate that can transmit infrared rays on the top surface, and a pressing plate that can be pressed from above the main body toward the transparent plate. An infrared exposure machine, wherein a light amount adjusting plate comprising at least one transparent acrylic plate or polished glass-like acrylic plate is exchangeably mounted on the transparent plate. Also, an infrared exposure machine comprising a main body with a built-in infrared irradiation device and a transparent plate capable of transmitting infrared rays attached to the upper surface, and a pressing plate that can be pressed from above the main body toward the transparent plate. An original is placed on the light amount adjustment plate of an infrared exposure machine in which a light amount adjustment plate composed of at least one of a transparent acrylic plate or a frosted glass-like acrylic plate is replaceably mounted on the transparent plate. Put a thermoplastic resin porous stamping material with no marking surface on top of it and stack it in layers, and press the upper side with a pressing plate so that the original and the porous stamping material come into close contact with each other. irradiating the surface of the porous stamp material a stamp stamp face forming method of forming a stamp face to have a possible exudation is non nonporous protective coating and ink oozing is ink remainder, Oyo said transparent plate In a state in which heat to the light amount adjusting plate is accumulated, by which heat is needed exchange accumulated the light amount adjusting plate to another light amount adjusting plate, stamp stamp face forming, characterized by creating a stamp face in succession Method.

  According to the infrared exposure machine of the present invention and the stamp printing surface creation method of the thermoplastic resin porous printing material using the infrared exposure machine of the present invention, the light quantity adjusting plate is mounted on the transparent plate exposed to infrared rays in a replaceable manner. Therefore, even if heat is accumulated on the transparent plate and the light amount adjusting plate, the stamp face can be continuously formed by replacing it as needed.

Hereinafter, the best mode for carrying out the present invention will be described.
The infrared exposure machine of the present invention has a main body in which an infrared irradiation device is incorporated and a transparent plate capable of transmitting infrared rays is attached to the upper surface, and a pressing plate that can be pressed from above the main body toward the transparent plate It consists of and.
In addition, the light amount adjustment plate is mounted on the transparent plate of the infrared exposure machine so that it can be replaced. The light amount adjustment plate may be made of at least one transparent acrylic plate or polished glass-like cloudy acrylic plate, and can control the output amount, light emission amount, heat generation amount, etc. of an infrared irradiation device such as an infrared irradiation lamp. In consideration, it is selected from the optimal combination. A transparent protective cover such as a plastic film such as a polyethylene film or a polyethylene terephthalate film may be affixed to the surface of the light amount adjusting plate for the purpose of preventing scratches or preventing dirt.

Next, the stamp stamp face creation method of the present invention will be described.
In order to create a stamp stamp surface, a stamp material and a manuscript are indispensable.
A thermoplastic resin is used as the material of the printing material of the present invention. In particular, a thermoplastic resin that melts at 50 ° C. to 300 ° C. can be used. For example, polyethylene, polypropylene, polybutylene, polyurethane, polystyrene, polyvinyl chloride, polyester, polycarbonate, polyethylene thermoplastic elastomer, polypropylene thermoplastic elastomer Polybutylene-based thermoplastic elastomers, polyurethane-based thermoplastic elastomers, polystyrene-based thermoplastic elastomers, polydiene-based thermoplastic elastomers, polychloride-based thermoplastic elastomers, ethylene vinyl acetate copolymer resins, and the like can be used. Among these, polyolefin thermoplastic resins such as polyethylene, polypropylene, ethylene-α olefin copolymer, polyethylene thermoplastic elastomer, and polypropylene thermoplastic elastomer are particularly preferably used.
In addition, as the printing material, a non-formed material on which a character or the like has not yet been formed is used. The use of a thermoplastic resin porous printing material having no marking surface is extremely useful because a stamp can be produced in a necessary amount at a storefront or the like when necessary.
Further, a porous material is used as the stamp material. When a porous printing material is used, a so-called penetrating mark in which ink can be incorporated can be obtained.
In the present invention, a single porous stamp material can be used, or a unit obtained by accommodating a porous stamp material in a stamp holder can also be used.

In order to prepare the original of the present invention, first a block is created by a computer or the like, and then the block is output to a sheet using a dry copying machine or a laser printer that forms an image by attaching carbon toner. Create a manuscript.
As the paper used in the present invention, a transparent sheet such as polypropylene resin, polyester resin, or polyethylene terephthalate resin or a white opaque sheet, or a sheet that transmits infrared rays, such as tracing paper or PPC paper, can be used.
As the manuscript, one that is divided and formed by a portion where a character or figure to be a stamp face is formed and the remaining portion and that can obtain a difference in infrared transmittance is used. Specifically, a transparent sheet or a white opaque sheet is used. Characters or figures drawn with heat-generating ink that generates heat when irradiated with infrared rays on one side, or letters or figures such as PPC paper or OHP paper by a copying machine formed as an infrared-absorbing film on the sheet surface, paper Examples include letters or figures drawn with ink or transfer tape (white type character correction tape, etc.) that reflects infrared rays on one side, or punched letters or figures on a sheet that does not transmit infrared rays. be able to.
Next, after wrapping the original sheet with a release film such as a laminate film that can transmit infrared rays, the original sheet of the present invention is obtained by cutting the original sheet into the same size as the outer periphery of the porous stamp material.

In the present invention, a guide jig is used as necessary.
The guide jig is a frame having an inner diameter substantially the same size as the porous stamp material and the original, and is made of a material that is not melted and deformed by heat generated by infrared irradiation.

In order to create the stamp stamp surface of the present invention, the above-mentioned stamp material and original document are used.
First, a document is placed on a light amount adjusting plate placed on a transparent plate of the infrared exposure machine, and a thermoplastic resin porous printing material is stacked thereon to form a laminated state. Next, a holding jig for bringing the original and the porous printing material into closer contact is loaded as required. Next, infrared rays are irradiated while pressing from above with a pressing plate so that the original and the porous stamp are in close contact with each other. When the pressing force is released and the porous printing material is taken out, a marking surface is formed having a non-porous protective coating whose surface cannot bleed ink and a remaining portion through which ink can bleed.
In order to continuously create the stamp face, the same operation is performed after replacing the light amount adjusting plate. Normally, it is impossible to create a stamped surface continuously because heat is accumulated on the transparent plate and the light intensity adjusting plate. However, it is possible to create the stamped surface continuously by replacing the light intensity adjusting plate as needed. Can do.
Hereinafter, the embodiment will be described in detail.

FIG. 1 shows an embodiment of an infrared exposure machine of the present invention.
The infrared exposure machine 11 of this embodiment is attached to the main body 15 so that the handle 12 provided with the curved hook portion 13 and the pressing plate 14 cooperate with each other, and the infrared irradiation device 19 is built in the main body 15. The transparent plate 17 which can permeate | transmit infrared rays is attached to the upper surface.
The infrared exposure machine 11 can obtain a clamping pressure by engaging the hook part 13 and the projection part 16 provided on the main body 15, and can freely change the degree of pressure depending on the amount by which the handle 12 is pushed down. It has become a thing.
Further, on the transparent plate 17 of the infrared exposure machine 11, a light amount adjusting plate 18 in which a transparent acrylic plate 18a and a polished glass-like acrylic plate 18b are laminated is mounted so as to be replaceable. The light amount adjustment plate may be made of at least one transparent acrylic plate or polished glass-like cloudy acrylic plate, and can control the output amount, light emission amount, heat generation amount, etc. of an infrared irradiation device such as an infrared irradiation lamp. In consideration, it is selected from the optimal combination. Moreover, you may affix a transparent or semi-transparent protective film, such as a plastic film, on the surface of a light quantity adjustment board for the purpose of scratch prevention, dirt prevention, etc.

Next, an embodiment of the stamp face creation method of the present invention will be described with reference to FIG.
First, a mixture of 100 parts by weight of a polyethylene resin having a melting point of 70 ° C., 20 parts by weight of polyethylene glycol having a molecular weight of 400, and 350 parts by weight of sodium chloride having a particle size of 10 to 60 μm was mixed with some carbon black and kneaded to obtain a thickness of 2 A sheet-shaped original member of 0 mm is created.
Next, the original member is immersed in warm water to completely remove polyethylene glycol and sodium chloride, and then sufficiently dried to obtain a grayish porous sheet having a thickness of 2.0 mm.
Next, the porous sheet is cut with a cutter into a size that can be accommodated in a stamp holder, which will be described later, to obtain a porous printing material made of a thermoplastic resin. At this time, when an ultrasonic cutter is used, the cut surface is melted and solidified simultaneously with the cutting.
Next, there is prepared a stamp holder 4 made of polyethylene having a melting point of 70 ° C. and formed with a joint portion on the upper side and a frame for accommodating the porous stamping material on the lower side, and accommodates the porous stamping material in a state protruding from the frame. To do. A lattice-like bottom raising member having an ink occlusion body and an ink passage hole is also accommodated on the back surface of the porous marking material. The outer diameter of the stamp holder 4 is set to be approximately the same as the inner diameter of a guide jig described later.
Next, a polyethylene terephthalate film is placed on the surface side of the porous stamp as a protective film. Next, a heat sealing jig having a sufficient size capable of simultaneously melting the entire circumference of both the porous printing material and the frame is prepared, heated to about 100 ° C., and then pressed against the porous printing material and the frame. .
When pressing is started, the peripheral edge of the porous stamp material is first melted, and then the lower end of the frame is melted. If it is detached after about 3 seconds while being pressed, it is fusion-bonded over the entire circumference in a shape in which the porous stamp and the frame overlap.
Next, the protective film is removed, and the unit 5 in which the porous stamp material is accommodated and fixed in the stamp holder is obtained. The unit 5 is in a state where characters and the like are not yet formed.

Next, the document 2 is prepared separately.
First, a composition is created on a computer or the like. Next, the original block is output and printed on a transparent polypropylene sheet to prepare an original sheet. In the original sheet, image portions such as characters or figures are formed with carbon toner, and the remaining portions remain transparent. Due to this difference, the magnitude of infrared transmittance is formed.
Next, after wrapping the original sheet with a slightly adhesive laminate film capable of transmitting infrared rays, the original sheet 2 is created by cutting the original sheet into approximately the same size as the inner diameter of the guide jig.

Next, the infrared exposure machine 11 of Example 1 is prepared.
On the transparent plate 17 of the infrared exposure machine 11, a light amount adjusting plate 18 including a transparent acrylic plate 18a and a polished glass-like acrylic plate 18b is placed, and then the acrylic frame-shaped guide jig 1 is placed.
Next, the document 2 is stored in the guide jig 1, and the unit 5 is stored in the guide jig 1 and stacked thereon.
Next, the holding jig 9 is placed on the unit 5.
Next, after covering the pressing plate 14 of the infrared exposure machine 11 as shown in FIG. 3 to bring the porous printing material 3 and the document 2 into close contact, the hook part 13 and the protrusion 16 of the infrared exposure machine 11 are attached as shown in FIG. The handle 12 is pushed down while being engaged, and a pressing force is applied between the pressing plate 14 and the transmission plate 17 so that the porous printing material 3 and the document 2 are completely brought into close contact with each other.
In this state, the infrared irradiation device 19 emits light, and infrared rays are irradiated from the transparent plate side as shown in FIG. Infrared rays that hit the image portion of the document 2 such as characters or figures are absorbed by the carbon of the portion and generate heat, but the heat decreases until reaching the porous stamping material 3 and until the porous stamping material 3 is melted. It does not lead to. On the other hand, the infrared light hitting the transparent portion of the blank portion passes through the original and directly hits the porous printing material 3, is absorbed by the carbon of that portion, generates heat, and melts the porous printing material 3. In this way, the surface of the porous printing material is formed on the non-porous protective coating and the ink oozing surface where ink cannot bleed out to form the printing surface.
Thereafter, the stamp can be created as shown in FIG. 6 by assembling the unit to the grip member 6 or the like separately prepared.
Next, in order to continuously create the stamp stamp surface, the same stamp stamp surface is created after the light amount adjusting plate is replaced.
According to the present invention, even if heat is accumulated on the transparent plate and the light amount adjusting plate as described above, the stamp face can be continuously formed by replacing the light amount adjusting plate as needed, which is very efficient. is there.

Example 1 exposure machine Explanatory drawing of Example 2. Exposure machine covered with a pressure plate Exposure machine during clamping Exposure state diagram of Example 2 Example 2 stamp

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Guide jig 2 Original 3 Porous printing material 4 Stamp holder 5 Unit 6 Grip member 9 Holding jig 11 Infrared exposure machine 12 Handle 13 Hook part 14 Press plate 15 Main body 16 Protrusion part 17 Transparent board 18 Light quantity adjustment board 19 Infrared irradiation apparatus

Claims (1)

An infrared exposure machine comprising a main body with a built-in infrared irradiation device and a transparent plate that can transmit infrared rays on the top surface, and a pressing plate that can be pressed from above the main body toward the transparent plate. And placing a document on the light amount adjustment plate of an infrared exposure machine in which a light amount adjustment plate consisting of at least one of a transparent acrylic plate or a frosted glass-like acrylic plate is replaceably mounted on the transparent plate , A thermoplastic resin porous printing material on which no marking surface is formed is laminated and laminated, and infrared rays are irradiated from the transparent plate side while pressing from above with a pressure plate so that the original and the porous printing material are in close contact with each other. the porous surface of the stamp material a stamp stamp face forming method of forming a stamp face to have a possible exudation is non nonporous protective coating and ink oozing is ink remainder, the transparent plate and the In a state where the amount baffle heat is accumulated by any time replacing the light amount adjusting plate heat is accumulated in the other of the light amount adjusting plate, stamping stamp face forming method characterized by creating a stamp face in succession .

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