JPH07251558A - Production of stamp - Google Patents

Abstract

PURPOSE:To rapidly produce a high-grade stamp meeting a purpose by a simple process and to obtain the stamp easy to discriminate because a seal plate having a colorful seal surface can be produced. CONSTITUTION:A melting part and a non-melting part are formed on the surface of a sponge material 1 having an open-cell structure and capable of impregnated with ink by a thermal head printer controlled by a memory processor of desired print-of-seal data to produce a stamp 5 wherein the non-melting part is set to an ink exudative print-of-seal surface. A raw plate composed of a tape-shaped sponge material is rolled to be received in a cassette case to obtain a cartridge which is, in turn, fitted in the cartridge housing part of a thermal printer having a thermal head 3 and enabling tape-shaped printing and a printing image set by keyboard input or external input is printed on a delivered stamp material under compression to produce a seal plate for a stamp.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stamp, a stamp manufacturing method, and a stamp material cartridge used in the manufacturing method. More specifically, the present invention relates to a stamp made of a sponge material having open cells that can be repeatedly imprinted by impregnating the ink without replenishing the ink, and an improvement in a method for producing the stamp.

[0002]

2. Description of the Related Art In order to save the trouble of adhering the stamp ink to the printing surface of the stamp each time the stamp or stamp is imprinted, a sponge rubber having open cells is used as a printing material.
A stamp is known in which ink is previously absorbed. As a method of manufacturing the stamp, Japanese Patent Laid-Open No. 60-1
Japanese Patent No. 93686 discloses a method for manufacturing a stamp in which the entire surface of the sponge except for the portion where the imprint is formed is depressed by heat embossing to be pressed, and the convex portion is used as an ink storage portion to serve as an imprint forming portion. Japanese Patent Laid-Open No. Sho 50-
No. 155323 also discloses a method for producing a stamp by pressing a porous body on a similar heating plate. However, these methods require a die as a heating plate and the number of steps for engraving or etching characters, symbols, figures, etc. on the die.

Further, Japanese Patent Laid-Open No. 57-136652,
In Japanese Unexamined Patent Publication No. 49-7003, a photopolymerizable liquid resin is applied to the surface of a sponge material, a positive film is placed on the upper surface of the sponge material, and ultraviolet rays are irradiated from above to cause a photopolymerization reaction. A method for manufacturing a stamp in which the surface of the sponge material is exposed from the removed portion is disclosed, and in Japanese Utility Model Publication No. 52-71710, a planographic printing stamp is disclosed by a similar method using a negative film. ing. However, these methods have drawbacks in that the steps such as forming a negative or positive film, coating a resin, photopolymerization, and washing with water are complicated. Further, JP-A-3-96383 describes that a sponge surface is directly melted by a thermal head, but there is no specific disclosure thereof. As mentioned above,
The conventional method for manufacturing a stamp having open cells is laborious, the process is complicated, the method using a thermal head is not specific, and a manufacturing method capable of promptly providing a stamp having a clear imprint is desired. There is.

On the other hand, a label word processor for producing a label (hereinafter referred to as a label word processor) can easily produce a label. This is provided with an input keyboard and a display unit composed of a liquid crystal display, etc., and a built-in font is generated by an input instruction of the keyboard or data from an external input is printed by heat generation of a thermal head. The label tape cartridge 41 used in this label word processor, as shown in FIG.
The label tape body 43 wound around the core member 42, the thermal transferable ink ribbon 46 wound around the supply core member 44 and wound around the winding core member 45, and the pressing member 47 are housed in the cassette case 48. It was done. Also,
The label tape body 43, as shown in FIG.
An adhesive layer 43b is applied to the back surface of the tape base material 43a, and a protective tape layer 43c is further overlaid. Although not shown, there is also a type in which a heat sensitive layer is directly provided on the tape substrate and printing is performed by a thermal head.

In this label word processor, characters and the like are input from a keyboard, the printed contents are confirmed on a display unit such as a liquid crystal display, and as shown in FIGS. 9 and 10, a thermal transfer ink layer 49 is formed by a thermal head (not shown). The tape base 4
A label tape of a suitable length is produced by melting the ink ribbon 46 and drawing it out while transferring characters and the like to the label tape body 43 by transferring to the label tape 3a, and a cutter (not shown). It is used as a label to be attached to an object by cutting it with and peeling off the protective tape layer 43c. In a label word processor that produces such tape-like labels, generally, the tape length is automatically set from the tape width and input data, and the character size and the character spacing are automatically set by setting the tape length. Therefore, a label tape with a good finish can be easily produced.

[0006] However, in the production of a label by such a label word processor, the thickness of the label tape itself is an obstacle, and the printing on a document and the label lack a sense of unity. Since the tape is generally made of PET film or the like, it is difficult to write with a writing instrument.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a method of manufacturing a stamp having open cells with a simple manufacturing process and apparatus. It is an object of the present invention to provide a stamp having open cells that can obtain a clearer impression. Furthermore, the present invention is based on the problems in the production of the above-mentioned conventional stamp, and is based on the basic idea of producing a label by a label word processor, using a thermal printer capable of tape-shaped printing such as a label word processor, An object of the present invention is to provide a stamp manufacturing method capable of easily manufacturing a stamp having a clean finish and a stamp original cartridge used in the method.

[0008]

The inventors of the present invention have conducted extensive studies in order to achieve the above object, and as a result, as a result, a thermal head of a thermal printer was formed on one surface of a sponge material sheet having open cells. By forming a melted portion and a non-melted portion by making the molten portion a recess,
It was found that a mirror image of a desired imprint can be obtained on a sponge sheet quite easily, and the stamp of the present invention and the method for producing the stamp have been completed. In addition, they succeeded in obtaining a cartridge containing the stamp material used in the manufacturing method, thus completing the present invention.

In the method of manufacturing a stamp of the present invention, a sheet-shaped stamp material made of an elastic resin having open cells and capable of being impregnated with the stamp ink is controlled by a thermal printer thermal head of a thermal printer controlled by a desired imprint data processing device. By passing between the platen and the platen while compressing, an imprinting mirror image formed of a concave fused portion and a non-melted portion in which a continuous bubble state is maintained is printed on the surface of the stamp material, and the fused portion is printed. The ink non-bleeding portion and the non-melted portion are used as the ink bleed portion. As a preferable condition for compressing between the thermal head and the platen of the thermal printer, the step difference between the melted portion and the non-melted portion is obtained by compressing the stamp material so as to be 95 to 30% of the thickness of the stamp material. Is 0.01 to 0.5 mm. A preferable stamp material is a sponge sheet made of at least one selected from the group consisting of natural rubber, synthetic rubber and synthetic resin, and has fine open cells with an average cell diameter of 2 to 10 μm having a three-dimensional network structure. Examples include a polyolefin foam sheet having a porosity of 30 to 80% and a melting temperature of 50 to 150 ° C. and a thickness of 0.5 to 10 mm. As one aspect, a sheet-shaped stamp material made of an elastic resin capable of being impregnated with a stamp ink having continuous cells is wound into a roll and attached to a cartridge storage portion of a thermal head printer capable of printing in a tape shape, In response to a command from the processing device for the desired imprint data, the stamp material is drawn out from the cartridge storage section and passed between the thermal head and the platen while being compressed, whereby a concave molten portion and open cells are formed on the surface of the stamp material. It is possible to show a manufacturing method in which an imprinting mirror image formed with a non-melted portion in which the state is maintained is printed, and the melted portion is used as the ink non-bleeding portion and the non-melting portion is used as the ink bleeding portion. Further, as a preferred embodiment of the production method of the present invention, a stick prevention layer for ensuring slipperiness between the stamp material and the thermal head is provided on at least a surface of the stamp material that is in contact with the thermal head. At the time of interposing a thin film sheet having a stick preventive layer for securing the slip property of the stamp material and the thermal head at the time, further, the surface of the thin film sheet in contact with the stamp material is melted by selective heat generation of the thermal head to form the surface layer of the stamp material. It can be shown that a hot-melt ink that can penetrate and melt the surface layer of the stamp material and that has a higher melting temperature than the stamp material can be applied. Further, these stick preventing layers are preferably layers containing a silicone resin. The stamp material cartridge of the present invention is characterized in that a tape-shaped stamp material made of an elastic resin having open cells and capable of being impregnated with stamp ink is wound in a roll shape and stored in a cassette case so as to be drawn out. To do.

An example of the stamp manufacturing method of the present invention will be described. In the first method, an elastic resin sheet stamp material having open cells and capable of being impregnated with ink is placed between a thermal head and a platen of a thermal printer controlled by a storage processing device for desired imprint data. By passing through, a molten portion and a non-melted portion are formed on the surface of the stamp material, and at the molten portion of the stamp material, the bubbles are closed by melting and adhering the air bubbles adjacent to each other in the thickness direction of the stamp material together with the melting of the surface. The melted portion serves as an ink non-bleeding portion, the non-melted portion serves as an ink bleeding portion, and the fused portion serves as a recess to form a stamp surface shape. Preferably, the storage processing device for the desired imprint data is a word processor,
The stamp material is a resin sheet having open cells. Also, by setting the gap between the thermal head and the platen to be narrower than the thickness of the stamp material, the molten portion becomes a recess,
The step difference from the non-melted portion is set to 0.01 to 0.5 mm, but when fine characters are included, it is preferably about 0.1 mm.

In the second method, a heat-meltable ink sheet is superposed on the surface of a sheet-like stamp material made of an elastic resin having open cells and capable of being impregnated with the stamp ink, and a desired imprint data storage processing device. A black-and-white reversal of the imprint and melting into a mirror image by a thermal printer and a heat-meltable ink controlled by, and the melted part is the stamp ink non-bleeding part, and the heat-meltable ink non-melting part is the stamp ink bleeding part. Is characterized by. Here, in the melting portion of the heat-meltable ink, the meltable ink permeates into the open cells in the surface layer of the stamp material, and the melting point of the ink is higher than the melting point of the stamp material. Bubbles adjacent to each other in the thickness direction are melted and adhered to each other, the surface of the stamp material in the melted portion is concave, the step between the melted portion and the non-melted portion is 0.01 mm or more, and the stamp material is a rubber or plastic sponge sheet, and The word processor is the storage device for the imprint data.

In the third method, a stamp material cartridge in which a tape-shaped stamp material made of an elastic resin capable of being impregnated with ink and having open cells is wound in a roll shape and accommodated so that it can be fed out can be printed in a tape shape. It is characterized in that the printed image is formed on a tape-shaped stamp material fed from the cartridge by being mounted in a cartridge housing portion of a thermal printer and being controlled by a thermal head printer controlled by a seal image data storage processing device. Of course, you may combine with the manufacturing method of the said manufacturing method.

The stamp material cartridge according to the present invention is characterized in that a tape-shaped stamp material made of an elastic resin capable of being impregnated with ink and having continuous cells is wound in a roll shape and accommodated in a cassette case so as to be drawn out. .

Any elastic resin sheet-shaped stamp material having open cells and capable of being impregnated with stamp ink used in the manufacturing method of the present invention may be used as long as it is a so-called sponge sheet having continuous pores with excellent ink self-holding ability. The material may be, but for example, natural rubber, synthetic rubber sponge rubber,
Synthetic resin foams such as polyurethane foam, polystyrene foam, polyethylene foam, polypropylene foam, vinyl chloride foam, EVA foam, and plastic foam such as ABS foam are shown, and the shape may be a smooth surface on which the imprint is formed. Plate-like,
Sheet or film form is shown. Due to the impregnation property of the stamp ink and the ease of plate making due to the heat generation of the thermal head, there are fine open cells having an average cell diameter of 2 to 10 μm with a three-dimensional network structure, a porosity of 30 to 80% and a melting temperature of 5
A 0.5 to 10 mm thick sheet of synthetic resin foam at 0 to 150 ° C. is used. A polyolefin foam is preferably used. Further, by coating the surface of the stamp material with a stick preventive layer such as a silicone resin, it is possible to prevent plate-making defects due to welding of the thermal head and the stamp material or an increase in friction coefficient.

The stamp material 20 used in the third method is in the form of a tape and has a thickness of 2.
If it is 0 mm or less, it is possible to make a plate with an existing label word processor thermal printer, and it is preferable that it is about 1.5 mm from the viewpoint of stamp material strength, ink storage amount, and printer performance.

The desired seal imprint data storage processing device used in the manufacturing method of the present invention is, for example, a personal computer, a word processor, etc., and the desired seal imprint data can be obtained from a built-in seal imprint data such as characters, symbols, and figures using a keyboard or the like. Data is input and output externally, and the heat output of the thermal head of the thermal printer is controlled by this external output. For input, scanner or CC
It is also possible to take in data from the D camera or combine it with key input data.

The thermal printer used in the manufacturing method of the present invention does not change in principle from an ordinary thermal printer, and it has a word processor having a function of reversing the mirror image of characters, symbols, drawings, etc. in black and white. It can be used if it is equipped with a thermal head printer capable of handling a thick stamp sheet.

The thermal head used in the manufacturing method of the present invention has the same specifications as the thermal head used in the thermal recording apparatus or the thermal transfer recording apparatus, and a large number of heating elements arranged on the thermal head are selectively heated to form a sheet shape. The surface of the stamp material is melted. In the manufacturing method of the present invention, when a sheet-shaped stamp material is passed between the thermal head and the platen, when the sheet-shaped stamp material moves between the thermal head and the platen (roller), and when the platen (board) and the stamp material are used. May be fixed and the thermal head may move.

Thermal printer A used in the third method
For example, as shown in FIG. 6A, includes a keyboard 10 for input and a display unit 11 including a liquid crystal display body, a thermal head 12, a cartridge storage unit 13, and a feed roller or platen 14. , Keyboard 10
The print image of the black-and-white reversal mirror image is generated by the thermal head 12 against the imprint of the marking such as a mark made up of characters, figures, symbols, or a combination thereof set by the input of It is preferable that the stamp is used to block air bubbles on the surface of the stamp material for plate making, and preferably has a function of a label word processor having an existing thermal printer.

In the stamp material cartridge B of the present invention, for example, as shown in FIG. 6B, a tape-shaped stamp material 20 is wound in a roll shape by a core member 21 so that it can be fed out and placed in a cassette case 22. It is housed, and is preferably compatible with the label tape cartridge used in an existing label word processor equipped with a thermal printer. Reference numeral 23 is a stamp material guide member. The tape-shaped stamp material 20 does not need to have a core member.

The hot-melt ink sheet used in the second method is, for example, a hot-melt ink in which a colorant is dispersed in a hot-melt substance such as wax.
The heat-meltable ink is a sheet coated on a heat-resistant film such as a polyester film in a state of being hot-melted or dissolved in an organic solvent.
A stick prevention layer containing a silicone resin is preferably applied to the back surface of the hot-melt ink sheet. Specific examples of the heat-fusible ink have a melting point higher than the melting temperature of the stamp material, and usually have a melting point of about 60 to 170 ° C., and are melted by selective heat generation of the thermal head and penetrate into the surface layer of the stamp material. At the same time, the surface layer of the stamp material can be melted. Its viscosity when melted is 1
It is preferably about 00 mPa · s. By selecting the colorant of the hot-melt ink, a colorful and unprecedented printing surface can be obtained. The melt viscosity of hot-melt ink is 10-2
Although it can be used up to about 000 mPa · s, it is selected because of its ability to penetrate stamp materials and sheet production.

The stamp surface is formed on the surface of the stamp material in the first method by inputting and outputting externally the mirror image data of desired characters, symbols, figures, etc. built in the apparatus with a keyboard or the like. The heat generated by the thermal head is controlled by external output to form a concave blocking layer on the surface of the stamp material that does not allow ink to pass through due to melting, while the unmelted portion is a mirror image of the imprint on the surface of the stamp material. That is, the melted portion is a portion due to a heat generation portion of the thermal head and is a non-bleeding portion of ink, that is, a portion where the ink absorbed in the so-called stamp material is not transferred at the time of printing. Further, the unmelted portion is a portion where the ink occluded in the stamp material at the ink bleeding portion bleeds out at the time of printing to form a seal image.

Specifically, a sponge sheet such as a foamed polyethylene sheet is located between the thermal line head and the platen roller provided in the thermal printer, and the platen roller also serves as a feed roller, which corresponds to the heat generated by the thermal line head. The platen roller rotates to form a black and white inverted mirror image of the imprint on the sponge sheet, and a so-called stamp is produced. Alternatively, the platen may be plate-shaped, a polyethylene sheet may be placed on the platen, and the thermal head may be moved for plate making. The space between the platen roller and the thermal line head is set to be narrower than the thickness of the sheet-shaped stamp material, and the molten portion can be made into a recess by heating while compressing and deforming the sheet, but the space is the same as that of the thermal head. It correlates with the calorific value, the heating speed, and the apparent density of the stamp material, and is set so that the concave portion of the molten portion is 0.01 to 0.5 mm. Although it depends on the bubble diameter and porosity of the stamp material and the viscosity of the stamp ink, if the bubble diameter is 2 to 10 μm and the stamp ink viscosity is 500 mPa · s or more, there is no problem in practical use even if the concave portion is about 0.01 mm. If the concave portion is too large, it also affects the non-melted portion and if a fine character is included, a clear imprint cannot be obtained. At this time, stick-slip may occur between the thermal head and the stamp material to prevent good plate making, but this can be avoided by applying silicone resin or the like to the sponge surface. It is effective to interpose a thin film sheet having a stick preventing effect when the silicone resin is not sufficiently applied or when the silicone resin has a bad influence on the stamp ink.

The stamp surface on the surface of the stamp material in the second method is formed by superposing a heat-meltable ink sheet on the surface of the stamp material and storing a desired seal image data by a word processor having a function of mirror image / black and white reversal. Black-and-white inversion of desired imprint data and mirror image data are output to the outside, and the heat output of the thermal head is controlled by this external output to melt the heat-meltable ink of the heat-meltable ink sheet, penetrate the surface of the stamp material, and melt at the same time. The surface of the stamp material is melted by the heat of 1 to form a concave shape, and the step difference between the melted portion and the non-melted portion is set to 0.01 mm or more. In the melting part, the bubbles of the stamp material are closed by melting and melting, and the stamp ink stored in the stamp material does not flow, while in the non-melting part of the heat-meltable ink, the ink stored in the stamp material is A print surface is formed as a portion that exudes. A desired imprint is obtained from this portion at the time of printing.

More specifically, referring to FIG. 1b and FIGS. 2 to 4, continuous bubbles are formed between the thermal line head 3 and the platen roller 4 provided in the thermal printer via the heat-meltable ink sheet 2. The stamp material 1 having the hot melt ink sheet 2 is placed on the thermal head 3 side, and the hot melt ink coating part a of the heat melt ink sheet 2 is placed on the front surface side of the stamp material 1. The gap between the head 3 and the platen roller 4 is set so that the step between the concave fused portion 6 and the non-melted portion 7 is 0.01 or more. Here, the depth of the concave portion of the fusion portion is the heat generation amount of the head, the heating speed, the material of the stamp material, the bubble diameter, the melting point,
Although it is related to the density etc., while the stamp material is deformed under pressure, it can be melted to a certain depth of the surface layer, so that the bubble clogging is complete in combination with the penetration of ink, and when transferring thermal transfer ink or sponge Compared to melting only on the surface, it is possible to completely block with a small amount of energy, and it is possible to obtain a good impression surface with less influence on the non-melted portion. The platen roller 4 also serves as a feed roller, and the platen roller 4 rotates in response to the heat generated by the thermal line head 3 to move the heat-meltable ink sheet 2 and the stamp material 1 having open cells to move the stamp. The hot-melt ink melts on the surface of the material 1 and permeates the sponge surface layer, and at the same time, the stamp material 1
The portion where the surface layer of FIG. 1 is melted becomes the stamp ink non-bleeding portion 6, the stamp ink bleeding portion 7 which is the non-melting portion becomes a mirror image of the imprint, and the stamp surface shape is obtained, and the stamp 5 is plate-making. At this time, as in the first method of the present invention, a stick may be generated between the head and the hot-melt ink sheet,
It is preferable to provide a stick prevention layer containing a silicone resin on the back surface of the seat.

The third method is to manufacture a stamp using the thermal printer A and the stamp material cartridge B as shown in FIG. That is, the stamp material cartridge B is attached to a thermal printer capable of printing in a tape shape having the thermal head 12, for example, the cartridge storage portion 13 of an existing label word processor, and input by the keyboard 10 or by input by selecting a rotating body. Alternatively, the print image set by external input is confirmed on the display unit 11 composed of a liquid crystal display or the like, and the stamp head 20 fed from the cartridge B is printed by the thermal head 12 to prepare a stamp having an appropriate length. To do. The stamp stamp surface 20a in FIG. 6B and FIG.
The label tape cartridge of No. 0 is located on the same surface as the display surface 43d. Further, in general label tapes, normally, normal image characters and the like are often printed, but in the case of the present invention, the thermal head 12 is arranged so that the stamp material 20 becomes a black-and-white inverted mirror image with respect to the imprint. The heat is applied to melt and block the bubbles on the surface of the stamp material. The thermal printer A also has a function that can form a print image that can be selected from a normal image or a mirror image and black and white inversion, and it can be set manually or in advance if the cartridge has a sensor part. It is achieved by setting it. Also, if you do not invert black and white with only the mirror image,
You can get a white imprint. Furthermore, if sticking between the head and stamp material is a problem, it is effective to provide a stick preventing layer directly on the stamp material as described above, or to interpose a thin film sheet having a stick preventing effect between the head and stamp material. Is. It is also possible to wind the heat-meltable ink sheet in the cartridge according to the feeding of the stamp material.

The stamp of the present invention is prepared by impregnating or occluding the ink in the stamp material in advance.
Although it can be used repeatedly without replenishing ink, the quality of the stamp surface is improved by making the melted portion concave, and clear printing is possible even if it is repeatedly used without replenishing ink for a long time. The feature is that

In the manufacturing method of the present invention, since the surface of the stamp material itself is directly plate-made by the thermal head to form the stamp surface, complicated steps can be omitted. In addition, the heat generated by the thermal line head is controlled by a word processor, etc.
No special artwork is required because symbols, figures, etc. are mirror-inverted in black and white according to input instructions. Further, the stamp of the present invention can be manufactured by preparing a thermal printer in which a plastic sheet having open cells and a thermal line head can be relatively moved, and connecting this to the word processor. If the characters to be plate-made are only the characters, symbols, and figures that are built into the word processor, the dots will not generate heat unless necessary, and high-quality plate-making without contamination is possible. Dust, scratches and the like have been major problems when optically processed by using a plate as in the prior art, but in the present invention, high quality plate making is achieved by controlling only the dirt of the thermal head. It becomes possible to significantly reduce the cost of the stamp. Also, if the slipperiness of the thermal head and stamp material is a problem,
The plate can be surely made by applying silicon or the like on the surface of the sheet or interposing a PET film coated with silicon or the like between the sheet and the thermal head. In the plate-making process, the waste material is completely economical and environmentally friendly because the non-exuding portion of the open cells on the surface of the stamp material (foamed polyethylene sheet) is heated and melted to close the bubbles. There are restrictions on the width direction of the stamp, but it is easy to manufacture in the longitudinal direction if the conventional method was difficult to manufacture and the cost was very high. It is easy to get good-looking stamps. The stamp manufactured by such a process enables continuous printing by absorbing the ink, and the ink is not volatile at room temperature and has a viscosity of 100 to 3000 mPa · s, which is preferable printing performance. . If the viscosity is less than this, the ink tends to bleed and the imprint becomes unclear. If it is too high, it takes a long time to occlude the ink and the ink does not flow out well at the time of imprinting, and an excessive imprinting force is required to obtain a clear imprint. Further, by providing an occlusion body having a higher degree of foaming than the stamp material behind the stamp material, it is possible to extend the printing life and facilitate ink supply.

The stamp obtained by the manufacturing method of the present invention has an advantage that it functions as a stamp even if the surface of the stamp itself is made into a printing surface and is not assembled with other members, but it is preferably mounted on a rootstock. By doing so, a normal stamp can be obtained. For its use, the stamp material may be impregnated with or occluded with ink in advance so that clear printing can be repeatedly performed without replenishing the ink for a long time. The ink which occludes the stamp is preferably non-volatile at room temperature and has a viscosity of 100 to 3000 mPa · s, which shows preferable imprinting performance. Further, by providing a stamp ink occlusion body having a foaming degree higher than that of the stamp material of the stamp between the stamp and the rootstock, it is possible to prolong the printing life of the stamp and facilitate the replenishment of the stamp ink. Further, the stamp of the present invention can be continuously printed by mounting it on the roll surface. Even when the heat-melting ink is melted and permeated on the surface of the foamed polyethylene sheet with the thermal head to melt the stamp material with the ink, the stamp can be produced by the same operation as an ordinary word processor.

As described above, a stamp can be produced on the spot even if there is no original by the same operation as a normal word processor without using a special device which is complicated to handle and requires a technique. Further, depending on the configuration of the apparatus, in the case of a scanner and a thermal line head, it is possible to make a plate by simply scanning an original. Naturally, it is also possible to combine both to make a plate.

In the third method, the tape-shaped stamp material is wound around a cartridge mounted in the cartridge housing portion of the thermal printer in a roll shape and stored in the cassette case so that it can be rolled out. The stamp surface is formed by printing a black-and-white reversal mirror image on the surface of the stamp material fed from the cartridge by a thermal head with respect to the desired stamp image set by inputting with Therefore, the stamp plate can be manufactured by the same procedure as that for manufacturing a general label tape, and the bubbles on the surface only at the necessary places can be easily blocked. Further, since the stamp material cartridge of the present invention has a structure to be mounted in the cartridge storage portion of a thermal printer having a thermal head capable of tape-shaped printing, it can be handled in the same manner as when producing a general label tape. Become. The structure of the cartridge may be a tape-shaped stamp material instead of the label tape 43 in FIG. 9, and a heat-meltable ink ribbon instead of the thermal transfer ink ribbon. In this case, a combination of a head and a stamp material can be used without a heat-meltable ink ribbon.

[0032]

Embodiments of the present invention will be described below with reference to the drawings. [Example 1] A stamp material having a three-dimensional network structure, an average bubble diameter of 5 µm, a porosity of 60%, and a melting point of 70 ° C.
A 6 mm foamed polyethylene sheet was used. Prepare a word processor and a thermal printer connected to it, and set the output of the word processor to a mirror image and white letters. FIG. 1A shows a thermal line printer in which a stamp material made of the foamed polyethylene sheet is positioned between the thermal line head 3 and the platen roller 4, and the platen roller 4 also serves as a feed roller. The platen roller 4 rotates in response to the heat generated by No. 3 to form a concave portion on the stamp material 1 to form a stamped ink non-bleeding portion 6, and the non-melting portion serves as a stamp ink bleeding portion 7 to form a mirror image of the imprint. The stamp surface shape is obtained, and the stamp 5 is plate-made. Here, by setting the distance between the thermal line head 3 and the platen roller 4 to be narrower than the thickness of the stamp material 1, adjacent air bubbles of the stamp material 1 are in close contact with each other, so that the heat generation amount of the heat generating element is not excessive. Although it can be melted to a certain depth and forms a concave portion, this completes the blockage of air bubbles and makes it clear without the influence of heat generation on the periphery. When a stamp material having a width of 24 mm was used, a thermal head was pressed against a platen roller at a pressure of 800 g to make a plate, and a recess of 0.05 mm could be formed. The heat generation temperature of the head at this time was approximately 200 to 300 ° C., and the plate-making speed was 30 m / s. When the bubble diameter of the stamp material was 5 μm, about 10 layers of bubbles were brought into close contact with each other, and sufficient sealing performance was obtained. In addition, a good impression surface was obtained by applying a thin silicone resin to the surface of the stamp material for preventing sticking between the thermal head and the stand material. FIG. 2 shows an example of the stamp surface, where 6 is a stamp ink non-exuding portion melted in a concave shape, and 7 is a mirror image of a stamp image composed of the stamp ink exuding portion of the non-melting portion. A stamp was attached to the obtained stamp to manufacture a stamp as shown in FIG. Fig. 4 shows the imprint imprinted with the stamp, but when the stamp size is 25 x 25 mm, the imprinting force is 5
Since the amount is about 00 g, the stamp is hardly deformed. In this case, if the depth of the melted recess is 0.01 mm or more, a good imprint can be obtained without the ink penetrating into the paper surface and the melted portion during printing. This has the effect that even if the ink bleeds to the melted portion during storage, it does not easily affect the imprint. Further, there is an advantage that the stamp need not be discarded even if the ink is supplied to the stamp more than the printing surface. However, if the depth is 0.1 mm or more, it is difficult to reproduce fine lines and dots on the stamp, and the imprint becomes unclear. It is possible with a combination of heads and heads.

[Embodiment 2] FIG. 1B shows a thermal printer connected to a word processor having a mirror image and black / white inverting function. The thermal line head 3 having a heat generation temperature of 200 to 300 ° C., which is provided in this thermal printer, is pressed against the interval of the pterran roller 4 at 800 g, and the heat-meltable ink sheet 2 (melting temperature mainly composed of wax and carbon is 100 ° C., melting) Viscosity is 100mPa
The heat-meltable ink a of s has a thickness of about 3μ on a PET film of 3.5μ, and the surface facing the head is coated with silicon. A stamp material 1 (foamed polyethylene sheet) (thickness 1.6 mm) having a diameter of 5 μm, a porosity of 60% and a melting point of 70 ° C. is placed. The platen roller 4 also serves as a feed roller, and the platen roller 4 rotates in response to heat generated by the thermal line head 3 to move the heat-meltable ink sheet 2 and the stamp material 1 at a speed of about 30 mm / sec. Then, the heat-meltable ink a of the heat-meltable ink sheet 2 is melted and permeated on the surface of the stamp material 1, and at the same time, the surface layer is melted and adhered to form the stamp ink non-bleeding portion 6, and the non-melting portion of the heat-meltable ink is stamped. The ink bleeding portion 7 becomes the mirror image of the imprint, and the stamp surface shape is obtained, and the stamp 5 is plate-made. The step difference between the stamp ink non-bleeding portion 6 and the stamp ink bleeding portion 7 of the obtained stamp 5 was 0.03 mm. Since the stamp material is melted and adhered through the heat-meltable ink, the step difference is smaller than that of the first embodiment. It was difficult to completely close the air bubbles if the hot melt ink was only transferred to the surface of the sheet. Therefore, in the present invention, the melting point of the hot melt ink is set higher than the melting point of the stamp material and a step difference is formed. Foamed polyethylene sheet 1 so that the ratio is 0.01 or more.
The molten polyethylene is melted while being compressed and deformed, so that the heat-meltable ink a is melted and permeated (c in FIG. 5) and the polyethylene foam sheet 1
The melting of the surface layer (d in FIG. 5) was performed at the same time.
By compressing, not only the surface is melted and adhered to a certain depth from the surface, but it is possible to completely block the bubbles in combination with the penetrating ink, and at the same time, by providing a step, the stamp ink does not exude the stamp ink when printing. 6 is difficult to penetrate, and the quality of the imprint due to variations in the stamping force of the stamp is small, resulting in a stamp with good usability. Here, the heat generating portion of the thermal line head is a non-bleeding portion of the ink, that is, a portion where the ink is not transferred at the time of imprinting, and FIG. 2 is an imprint mirror image of the printing surface of the plate. FIG. 3 shows that the stamp 8 is attached with the rootstock 8. FIG. 4 shows an imprint imprinted with the stamp. FIG. 5 is an enlarged cross-sectional view of the stamp face, where c is the permeation part of the hot-melt ink and d is the fusion part.

[Embodiment 3] This is an example of the third method. A stamp is produced using the thermal printer A and the stamp material cartridge B (see FIG. 6). That is, a thermal printer capable of printing the stamp material cartridge B in the form of a tape having the thermal head 12, for example,
It is installed in the cartridge storage unit 13 of an existing label word processor, and the print image set by the input from the keyboard 10 or by the selection of the rotating body or by the external input is confirmed on the display unit 11 including a liquid crystal display body,
Stamp material 2 fed from the cartridge B
No. 0 is printed by the thermal head 12, and a stamp having an appropriate length is produced. In this embodiment, the stamp surface 20a in FIG. 6B and the display surface 43a of the label tape cartridge in FIG. 10 are located on the same surface side. In addition, in general label tapes, there are those that normally print normal image characters, but in the case of the present invention, the stamp material 2
For 0, the thermal head 12 is caused to generate heat so that the imprint image becomes a black-and-white inverted mirror image, and the bubbles on the surface of the stamp material are melted and blocked. The thermal printer A has a function capable of forming a print image, which can be selected from a normal image or a mirror image and black-and-white inversion, and it can be set manually or in advance if the cartridge has a sensor part. It is achieved by setting it. If black and white is not reversed, the seal image will be a blank character. FIG. 7A shows a stamp 30 manufactured by the third method. The stamp 30 has a non-extruded portion (melted by heat generated by the head) in which bubbles on the surface of the stamp material are melted and blocked by heat generated by the thermal head. Part) 31 and an ink bleeding part (a non-melting part corresponding to a head non-heating part) 32 which becomes a print image part. Further, FIG. 7B shows the imprint 33 after imprinting with the stamp 30.

In this embodiment, the head heat generation temperature is 200 to 30.
Using a label word processor having a temperature of 0 ° C., a printing speed of 30 mm / sec, a label tape thickness of 0.1 to 0.2 mm, an average cell diameter of 5 μm having fine open cells of a three-dimensional network structure, a porosity of 60%, and a melting point of 70 ° C. A stamp material (foamed polyethylene sheet) having a thickness of 1.6 mm was prepared. Since the tape thickness of the label word processor is 0.1 to 0.2 mm and the 1.6 mm thick sheet is intended to be plate-formed, the stamp material is heated in a state of being compressed by about 30% in the thickness direction. Not only that, the continuous bubbles were melted and blocked up to a certain depth, resulting in a step difference of about 0.05 mm between the melted portion and the non-melted portion, and a good imprint could be obtained. At this time, the pressing force of the head was about 1000 g with respect to the width of the stamp material of 24 mm. Also,
In order to improve the sliding property between the thermal head and the stamp material (foamed polyethylene sheet) at the time of heat generation, a 1.5 μPET film coated with silicon on the surface facing the head is interposed between the stamp material and the head. Was significantly improved. Furthermore, when the heat-meltable ink is applied to the surface of the PET film facing the stamp material, the heat-meltable ink melted and melted at the heat-generating portion of the head to penetrate the stamp material and the ink. Due to the heat, the bubbles melted and adhered, and good results were obtained in melting and closing the open cells of the stamp material.

As described above, in the present embodiment, the thermal printer having the function of the existing label word processor and the label tape to be mounted on the thermal printer are provided so that the tape stamp material can be wound into a roll and fed out. It is stored in a cartridge that has a shape compatible with the cartridge. That is, the stamp can be easily produced by the same operation method as the production of the label tape by the existing label word processor except that the stamp material cartridge B is replaced and the black-and-white inverted mirror image printing is set.
Further, since the stamp material cartridge of the present embodiment has a structure in which the stamp material is mounted in the cartridge storage portion of the thermal printer capable of tape-shaped printing, it is easy to handle like the existing label tape. Becomes

In FIG. 3, the stamp 30 thus prepared is used as a root 35.
It is an example of using the stamp set to. Stamp 30
If the thickness of the ink is about 3 mm, it is possible to imprint the ink on the stamp material several thousand times continuously. However, in this embodiment, since the material thickness is thin, the imprinting pad 36 has a small number of imprints. Are set on top of each other. The stamp 30 and the ink occluding pad 36 are adhered to each other by a double-sided adhesive tape on the periphery, and the ink occluding pad 36 and the base 35 are also adhered by a double-sided adhesive tape.

The produced stamp can be set on a stamp member such as a rootstock by a simple means as described above, and a continuous stamp or the like can be immediately printed. Therefore, by introducing the stamp material cartridge of the present invention into a label word processor or the like equipped with a thermal printer, a stamp can be produced very speedily. This has the advantage of eliminating such problems. In addition, like the plate making process of rubber stamp,
Since it does not require steps such as negative removal, plate making, mastering, rubber baking, and finishing from the original, and does not require expensive equipment such as laser engraving, stamps can be manufactured at low cost, especially for long In the case of stamps, this effect is great.

The third method and the stamp material cartridge used for the third method are constructed and used as described above, but are not limited to the above-mentioned embodiments, and are within the scope of not changing the gist of the present invention. The design can be changed in various ways. For example, a structure in which a stamp material cartridge obtained by winding a tape-shaped stamp material in a roll shape and storing it in a cassette case so that it can be fed out can be mounted in a cartridge storage portion of a thermal printer having a thermal head and capable of printing in a tape shape. If so, the structure of the tape-shaped stamp material, the stamp material cartridge, etc. is not particularly limited, and the print image such as the mark set by the input from the keyboard or by the external input is fed out from the cartridge. Other components of the thermal printer are not particularly limited as long as the stamp material is printed by a thermal head to produce a stamp having an appropriate length.

[0040]

Industrial Applicability The stamp manufacturing method of the present invention has a simple process and does not require a mold, so that a high-quality stamp suitable for the purpose can be promptly provided. Further, since a stamp having a colorful stamp surface can be manufactured, a stamp which can be easily identified can be obtained. The stamp obtained by the manufacturing method of the present invention has an advantage that it functions as a stamp even when the surface of the stamp itself is plate-formed and becomes a stamped surface without assembling with other members, but it is usually mounted on a rootstock to be a stamp. Since the stamp can absorb the ink with the stamp material having the open cells, there is no need to apply the ink each time the stamp is made, which is the same as the conventional stamp having the open cells. However, it is characterized in that the imprint obtained by stamping is clear and of high quality. Further, it is possible to immediately make a desired stamp surface by an apparatus and operation similar to a normal word processor, and it is possible to provide a high-quality stamp. In particular, if a tape-like stamp material is housed in a cartridge that can be mounted on a label word processor equipped with a commercially available thermal printer so that the thermal head can make a plate, a stamp having the same pattern as the label tape can be obtained. It can be manufactured, and it will greatly expand the range of use of existing label word processors.
Since the stamp material is in the form of a tape, there is considerable freedom in setting the length, and a stamp manufacturing method and a stamp material cartridge used therefor are provided that enable the production of a stamp that is unprecedentedly large. The Rukoto.

[Brief description of drawings]

1A and 1B are views of a thermal printer including a thermal head.

FIG. 2 is a view showing a plate made on a foamed polyethylene sheet.

FIG. 3 is a view in which a stamp made of a plate-made expanded polyethylene sheet is attached to a base.

FIG. 4 is a diagram showing an example of a stamp.

FIG. 5 is an enlarged view of a stamp ink exuding portion and a non-exuding portion.

6A is a schematic plan view showing an example of a thermal printer used in a third method of the present invention, FIG.
FIG. 3 is a schematic plan view showing an example of a stamp material cartridge of the present invention.

FIG. 7A is a plan view showing an example of a stamp made by the third method of the present invention, and FIG. 7B is a plan view showing an imprint thereof.

FIG. 8 is a cross-sectional view showing an example of a usage state of the stamp, showing a state in which the stamp is set on a rootstock.

FIG. 9 is a schematic plan view showing an example of a conventional label tape cartridge.

FIG. 10 is a cross-sectional view showing an example of a conventional label tape.

[Explanation of symbols]

 1 stamp material (foamed polyethylene sheet) 2 heat-meltable ink sheet 3 thermal line head 4 platen roller 5 stamp 6 stamp ink non-bleeding portion 7 stamp ink bleeding portion 8 rootstock 9 guide roll a heat-melting ink b PET film c penetration Part d Melting part A Thermal printer B Stamp material cartridge 12 Thermal head 13 Cartridge storage part 20 Stamp material 30 Stamp

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Sumi Tamano 2-5-12 Irie, Kanagawa-ku, Yokohama, Kanagawa Prefecture Research & Development Center, Mitsubishi Pencil Co., Ltd.

Claims (14)

[Claims] 1. A sheet material stamp made of an elastic resin having open cells and capable of being impregnated with a stamp ink is compressed between a thermal head of a thermal printer and a platen controlled by a processor for processing desired imprint data. By passing through the stamp material, a stamped mirror image formed by a concave melted portion and a non-melted portion in which the open-cell state is maintained is printed on the surface of the stamp material, and the melted portion is printed with the ink non-bleeding portion and the non-melting portion. A method of manufacturing a stamp, characterized in that a portion of the stamp surface is an ink bleed portion. 2. The step difference between the melted portion and the non-melted portion is set to 0.01 to 0.5 mm by compressing the stamp material so as to be 95 to 30% of the thickness of the stamp material. 1. The method for manufacturing the stamp according to 1. 3. The method for producing a stamp according to claim 1, wherein the stamp material is a sponge sheet made of at least one selected from the group consisting of natural rubber, synthetic rubber and synthetic resin. 4. The stamp material has fine open cells having a three-dimensional network structure and an average cell diameter of 2 to 10 μm, and a porosity of 30 to 80.
% Of the polyolefin foam having a melting temperature of 50 to 150 ° C. and a sheet having a thickness of 0.5 to 10 mm. 5. A stick-preventing layer for ensuring slipperiness between the stamp material and the thermal head is provided on at least a surface of the stamp material that is in contact with the thermal head.
How to make the stamp described. 6. The method for producing a stamp according to claim 1, wherein a thin film sheet having a stick prevention layer for ensuring slipperiness of the thermal head and the thermal head when the thermal head is heated is interposed between the thermal head and the stamp material. . 7. The method for manufacturing a stamp according to claim 5, wherein the stick preventing layer is a layer containing a silicone resin. 8. A heat-meltable ink capable of being melted by selective heat generation of a thermal head and penetrating into the surface layer of a stamp material and melting the surface layer of the stamp material and having a melting temperature higher than that of the stamp material. 7. The method for producing a stamp according to claim 6, wherein the stamp is applied to the surface in contact with the stamp material. 9. A sheet-shaped stamp material made of an elastic resin having open cells and capable of being impregnated with a stamp ink is wound into a roll and mounted in a cartridge storage portion of a thermal head printer capable of tape-shaped printing, In response to a command from the processing device for the desired imprint data, the stamp material is drawn out from the cartridge storage section and passed between the thermal head and the platen while being compressed, whereby a concave molten portion and open cells are formed on the surface of the stamp material. A method for producing a stamp, comprising: printing an imprint mirror image formed with a non-melted portion in which the state is maintained, and making the melted portion the ink non-bleeding portion and the non-melting portion the ink bleeding portion. 10. A thin film sheet having a stick preventing layer is interposed between the thermal head and the stamp material, and the thin stamp sheet is rolled out and stored in the cartridge of claim 9 in a rollable and rollable manner. The method for manufacturing a stamp according to claim 9, wherein: 11. The method for producing a stamp according to claim 9, further comprising providing a stick prevention layer for ensuring slipperiness with the thermal head on at least a surface of the stamp material which is in contact with the thermal head. 12. A stamp of the thin film sheet, wherein a heat-meltable substance having a higher melting temperature than a stamp material capable of being melted by selective heat generation of a thermal head to permeate the stamp material surface layer and melt the stamp material surface layer. 11. The coating composition is applied to the surface in contact with the material.
How to make the stamp described. 13. The method of manufacturing a stamp according to claim 10, wherein the stick prevention layer contains a silicone resin. 14. A stamp material for producing an ink-absorbing stamp, comprising a tape-shaped stamp material made of an elastic resin, which has open cells and can be impregnated with the stamp ink, and which is wound in a roll shape and accommodated in a cassette case so as to be drawn out. cartridge.