JP5024955B2 - Manufacturing method of penetrating stamp with reinforcing cloth and penetrating stamp with reinforcing cloth - Google Patents

Description

  The present invention relates to a method for producing a printing material for penetrating stamps with a reinforcing cloth in which a reinforcing cloth having ink flowability is attached and integrated on the back side of a porous sheet, and a method for producing the stamping material and a penetrating stamp with a reinforcing cloth. It relates to a stamp material.

An infiltration stamp material with a reinforcing cloth in which a reinforcing cloth with ink flowability is attached and integrated on the back side of the porous sheet material is also described in Japanese Patent Application Laid-Open No. 61-295041 cited as Patent Document 1. As shown in the figure, a porous sheet material and a reinforcing cloth are stacked on a mold and heated and pressed to integrate them. Part of the porous sheet material that has melted when the porous sheet material and the reinforcing cloth are stacked on the mold and heated and pressed together reaches the mold surface through the reinforcing cloth, and a part of the porous sheet material is this part. There was a problem that the film leached along the mold surface and a thin film was formed on the back surface of the reinforcing cloth, and this film covered the woven cloth surface and deteriorated the ink absorption efficiency.
Japanese Patent Laid-Open No. 61-295041

  In the printing material for penetrating stamps with a reinforcing cloth in which a thin film is left on the back surface of the reinforcing cloth in this way, the thin film formed on the back surface of the reinforcing cloth reduces the ink supply capability, and such reinforcement At the time of making a penetrating mark using a penetrating stamp material with cloth, it takes a long time to allow the ink to naturally penetrate from the reinforcing cloth side to the printing surface side. There was a problem of being.

  The problem to be solved by the present invention is to solve the above-mentioned problems, and in a printing material for penetrating printing with a reinforcing cloth in which a reinforcing cloth having ink flowability is attached and integrated on the back side of the porous sheet, In addition to being excellent in the anti-slip effect, it is also possible to provide a low cost penetrating stamp material with a reinforcing cloth in which the entire back surface of the penetrating stamp material has an excellent ink absorption capability.

  The present invention that has solved the above-mentioned problems is provided with a reinforcing cloth that integrates a reinforcing cloth having ink flowability on the back side of the porous sheet material in which the foaming material is mixed and heats and pressurizes both. In the method for producing a penetrating stamp material, the heating and pressurizing treatment is performed in a state where the peeling sheet is stacked on the back side of the reinforcing cloth, and a part of the porous sheet material melted by heating is used as the reinforcing cloth. The sheet for release is impregnated into a sheet of release material to form a molded stamp material sheet in which the porous sheet material, the reinforcing cloth and the sheet for release are integrated, and then the sheet for release is peeled off from the back side of the sheet of molded stamp material A method for producing a printing material for penetrating marks with a reinforcing cloth, and a penetrating stamp material with a reinforcing cloth obtained by such a method, that is, a reinforcing cloth having ink flowability is attached integrally to the back side of a porous sheet. Complemented In the osmotic marking material with cloth, the entire back surface of the osmotic marking material is exposed on the back side through a woven fabric surface made of the woven yarn constituting the reinforcing cloth and a part of the porous sheet described above through the cloth of the reinforcing cloth. The end portion of the pendant is formed of an ink-absorbing rough surface formed of an innumerable spot-like portion that has been stripped off by peeling of the peeling sheet, and is made of a penetrating stamp material with a reinforcing cloth. .

  In the above-described method for producing a penetrating stamp with a reinforcing cloth, after forming a stamped sheet by heating and pressing the three layers of a porous sheet material, a reinforcing cloth and a peeling sheet, The printed part may be formed on the surface of the porous sheet material. However, when heating / pressurizing treatment, an uneven part for printing is formed on the lid type or one pressure roller side, and heating is performed. -When forming a stamping sheet integrated with the three by pressurization, a printing portion may be formed on the surface of the porous sheet material. This is the invention of claim 2 and the foaming material. Is used as a washing substance such as sodium chloride particles without using a foaming agent that is foamed by heating, this washing substance is washed after the peeling sheet is removed to make the porous sheet material countless continuous pores. Porous sheet having However, the washing out of the substance to be washed out is performed before the peeling sheet is peeled off to leave the porous sheet material as a porous sheet having innumerable continuous pores, and if necessary, a printing portion is provided on the surface of the porous sheet. It may be formed by embossing or engraving, and these are the inventions of claims 3 and 4.

  According to the manufacturing method of any one of claims 1 to 4 as described above, in the osmotic marking printing material with a reinforced cloth in which a reinforcing cloth having ink flowability is attached and integrated on the back side of the porous sheet, The entire back surface of the printing material is a woven fabric surface made of the woven yarn constituting the reinforcing cloth, and a part of the porous sheet is exposed to the back side through the cloth of the reinforcing cloth, and its end is peeled off by the peeling sheet. With a reinforcing cloth obtained in this way, it is possible to easily obtain a printing material for penetrating marks with a reinforcing cloth, characterized in that it is formed on an ink-absorbing rough surface consisting of innumerable spotted parts cut into pieces. It has been known that the penetration material for penetrating stamps is tough and excellent in durability because the reinforcing cloth adhered and integrated on the back side of the porous sheet supplements the strength of the porous sheet, increasing the overall strength. For this kind of penetration mark with reinforcing cloth In the present invention, in particular, in the present invention, the entire back surface of the penetrating marking material is the back surface of the weaving yarn constituting the reinforcing fabric, and a part of the porous sheet is reinforced. The surface of the fabric is leached in the form of thin legs through the back of the cloth, and its end is made into an ink-absorbing rough surface consisting of innumerable spot-like parts that are torn off on the same surface as the woven cloth surface. Exerts a positive effect.

  The penetrating stamp material in the present invention has a woven fabric surface, the entire back surface of which is the back surface of the woven yarn constituting the above-described reinforcing fabric, and a fabric in which a part of the above-described porous sheet is formed evenly of the reinforcing fabric. The end portion of the ink is squeezed into a thin leg shape on the back side, and its end portion is formed on an ink-absorbing rough surface consisting of innumerable spot-like portions that are torn off by peeling of the peeling sheet, In this ink-absorbing rough surface ink, the porous sheet material melted at the time of heating / pressing is not left as a thin film covering a part of the back surface of the reinforcing cloth. Absorption efficiency is extremely excellent. The reason for this is that even if part of the porous sheet material melted during heating and pressurization leaches out to the back side through the fabric of the reinforcing cloth, the mold surface is not for the reinforcing cloth but for the peeling. Since the sheet is a sheet, the porous sheet material, the reinforcing cloth, and the peeling sheet are integrated in a state where all the melt leached to the back side through the cloth of the reinforcing cloth is impregnated in the peeling sheet. When the release sheet is peeled from the back side of the molded stamp sheet after being molded into the molded stamp sheet, a part of the porous sheet material interposed between the reinforcing cloth and the release sheet is removed from the back side of the reinforcing cloth together with the release sheet. As soon as it is removed, the part that has reached the peeling sheet through the stitches of the reinforcing cloth is torn off, and the entire back surface of the obtained seal material for penetration marking is the back surface of the woven yarn that constitutes the reinforcing cloth. Ah It has an ink-absorbing rough surface consisting of a woven fabric surface and countless spots arranged in an orderly manner that have been trimmed by peeling off the release sheet, hindering the ink-absorbing power of the reinforcing fabric. Since the coatings are eliminated, the ink supply to the molded stamping sheet through the reinforcing cloth is not hindered, and the ink absorption ability of the reinforcing cloth is not deteriorated, and the ink is efficiently supplied. . Furthermore, since the ink supply property from the reinforcing cloth is improved, it is not necessary to apply excessive pressure to the printing surface at the time of printing, and as a result, the continuous printing property is also improved. Further, an ink-absorbing rough surface comprising a woven fabric surface which is the back surface of the woven yarn constituting the reinforcing fabric, and countless spots arranged in an orderly manner where the ends are chopped off by peeling of the peeling sheet. It has excellent anti-slip effect.

Next, the present invention will be described in detail with reference to the drawings.
FIG. 1 is an end view of an osmotic stamping material with a reinforcing cloth obtained in the present invention, and FIG. 2 is a heating / pressurizing process in which a reinforcing cloth having ink flowability and a peeling sheet are stacked on the back side of a porous sheet material. FIG. 3 is an end view of the sheet for molded stamping material in which the three members are integrated in a state where a part of the porous sheet material is intervened in the cloth of the peeling sheet through the cloth of the reinforcing cloth. It is an end view which shows the state which has peeled the peeling sheet from the sheet | seat for printing materials shown.

In the present invention, as in the case of manufacturing a conventional penetrating stamp material with a reinforcing cloth of this type, since it is molded using a heatable press mold comprising a well-known receiving mold and a lid mold (not shown) and a molding roll, these are used. The details of are omitted, and only a case where a press die is used will be briefly described below.
First, on a mold surface of a receiving mold (not shown) in a mold open state, a release sheet capable of absorbing the molten porous sheet material, a reinforcing cloth with ink flowability, and washing out such as sodium chloride particles Set three layers of porous sheet material mixed with known foaming materials such as substances and foaming agents, and heat from the top with a lid mold with uneven parts for printing as necessary A stamping material in which the peeling sheet, the reinforcing cloth, and the porous sheet material are integrated so that a part of the porous sheet material melted by pressurizing while pressing reaches the peeling sheet through the reinforcing cloth. A sheet. In this process, this type of conventional penetrating seal with a reinforcing cloth is used, in which a reinforcing cloth with ink flowability is stacked on the back side of the porous sheet material mixed with foaming material, and both are heated and pressed to integrate them. The manufacturing method of the printing material does not change except for the portion where the peeling sheet is stacked on the back side of the reinforcing cloth, and details such as the foaming material and molding conditions are omitted except for the portion where the peeling sheet is stacked.

  Next, the mold is opened, and the molded stamp material sheet in which the three members of the porous sheet material, the reinforcing cloth, and the peeling sheet are integrally formed on the receiving mold is removed. Then, if the release sheet is pulled off from the back side of the molded stamp material sheet, the porous sheet partly fills the fabric of the part that reaches the back side release sheet through the reinforcing fabric and reaches the release sheet. The thin leg-shaped leached part is chopped at the boundary between the reinforcing cloth and the peeling sheet to form countless spot-like parts, and leached to the back side through the cloth of the reinforcing cloth. The melt that forms a thin film by intervening between the interface between the release sheet and the release sheet is peeled off from the back of the reinforcing fabric while being impregnated on the release sheet side. The back side is the woven fabric surface that is the back side of the woven yarn constituting the reinforcing fabric, and a part of the porous sheet is exposed to the back side through the fabric of the reinforcing fabric, and the end portion is shredded by peeling off the release sheet. It is made up of countless spots It will be formed in the key absorption rough surface. It should be noted that when the release sheet is peeled off, the melt that forms a thin film by being intervened between the boundary surfaces of the reinforcing cloth and the release sheet is impregnated on the release sheet side. In order to do this, the release sheet may be made of a material having a greater melt penetration than the reinforcing cloth.

  In addition, if the porous sheet material, the reinforcing cloth, and the release sheet are overlaid and heated / pressurized, if the concave and convex portions for forming the printing portion are formed on the mold surface of the lid mold or receiving mold, This method is preferable for the production of standard products because the printing part can be simultaneously formed on the surface of the porous sheet in the process of integrating the three of the sheet material, the reinforcing cloth and the release sheet. When using as a penetrating marking material, it is a matter of course that the surface of the porous sheet may be formed into a flat shape so that the printing portion can be formed by known means such as laser processing, engraving or embossing, Even if a well-known washing substance such as sodium chloride particles is used as the foaming material, two methods of adding a foaming agent that is foamed by heating are generally used. However, when the washing substance is used, the washing substance should be washed out. After removing the peeling sheet Also made by, it may be performed before 剥除 of the release sheet.

Hereinafter, a case where the porous sheet material is a rubber type is referred to as Example 1, and a case where the porous sheet material is a thermoplastic resin type is described as Example 2.
Example 1
From 100 parts by weight of synthetic rubber (NBR) (hereinafter, parts by weight), 3.5 parts by weight, 5 parts by zinc, 5 parts by vulcanization accelerator, liquid rubber (low polymerization NBR) petrolatum, DBP, etc. 30 parts of softening agent, 50 parts of carbon black, 2 parts of anti-aging agent, 800 parts of fine sodium chloride powder having a particle size of 0.149 to 0.176 mm as foaming material, potato starch having a particle size of 0.062 to 0.103 mm 100 parts each of fine powder and saccharose and 5 parts of aramid fibers having a length of 1 mm and a fineness of 3 d were put into a pressure kneader and kneaded, and this was placed on a calender roll to prepare a 5 mm thick rectangular unvulcanized sheet. This is housed in a well-known press-molding die with a 1 mm deep character on the mold surface, and is used as a reinforcing cloth in a size suitable for the size of the above-mentioned square penetrating stamping material. A cotton cloth woven into plain yarn with 250 yarns is placed on it, and a cotton cloth plain with woven 40 yarns is placed on it as a peeling sheet, and 200 kg / cm ² is placed through a lid mold. The release sheet was impregnated with a part of the porous sheet material, which was vulcanized at a temperature of 150 ° C. for 15 minutes while being heated and melted by heating during this period, through the cloth of the reinforcing cloth. As a result, as shown in the figure, a molded stamping sheet 4 is obtained in which the porous sheet material 1, the reinforcing cloth 2 and the peeling sheet 3 are laminated and integrated. Therefore, the sheet is removed from the mold and washed with water. Then, all the sodium chloride fine powder contained in the porous sheet material 1 is eluted to make the porous sheet material 1 an NBR porous sheet 11 having innumerable continuous pores. Then, as shown in FIG. 2, if the peeling sheet 3 is peeled off from the back side of the molding stamp material sheet 4 in which the porous sheet 11, the reinforcing cloth 2 and the peeling sheet 3 are integrated. When the porous sheet material 1 is melted, a part of the porous sheet 11 leached in the form of a narrow leg on the back side through the cloth of the reinforcing cloth 2 and impregnated in the release sheet 3 is shredded to countless While the spot-like portion 12 is formed, a part of the porous sheet 11 leached between the reinforcing cloth 2 and the peeling sheet 3 and intervened as a thin film form together with the peeling sheet 3 and the back side of the reinforcing cloth 2 3, as shown in FIG. 3, the entire back surface is a clean woven cloth surface made of the woven yarn constituting the reinforcing cloth 2, and a part of the porous sheet 11 is on the back side through the cloth of the reinforcing cloth 2. Exposed and its edge is used to peel off the peeling sheet Rihiki shredded obtained numerous punctate portion 12 becomes more an ink absorbing rough sheet-like reinforcing cloth with penetration mark for stamp material 5 formed was obtained.

This penetrating stamp material 5 with a reinforcing cloth is cut into a circumference of 100 mm and a width of 5 mm, and a laser engraving machine is used to engrave the number of characters 16 frames, which are linked in a ring to form a rotary stamp printing belt. When the time for allowing the ink to naturally permeate from the side to the printing surface side was measured, the ink could be completely permeated into all character portions in 2 hours. This means that the time required for the rotary stamping print belt obtained by the conventional method was greatly reduced compared to 24 hours, and it was confirmed that the present invention is extremely effective.

(Example 2)
Carbon black is added to 100 parts of polyethylene resin (hereinafter referred to as "parts by weight"), 20 parts of polyethylene glycol having a molecular weight of 400, and 350 parts of fine sodium chloride powder having a particle size of 0.010 to 0.060 mm as a foaming material, and kneaded. Then, a sheet material having a thickness of 1.0 mm was formed through the rollers. Then, as a reinforcing cloth on the back side of this sheet material, a double-woven cotton cloth is piled up by placing a double yarn of approximately the same number of 120 as the number of yarns, and further using polyester fibers twisted to 120 denier Three layers of polyester fabrics that were plain woven with 100 punches were stacked as a release sheet and heated to 140 ° C. while applying a pressure of 200 kg / cm ^{2 with} a well-known pressure roll not marked with characters. And a part of polyethylene resin, which is a porous sheet material that is melted by heating in the meantime, is impregnated into the peeling sheet through the cloth of the reinforcing cloth, and as in Example 1, the porous sheet material and the reinforcing cloth are thus impregnated. Since a molded stamping sheet in which the three members of the sheet and the peeling sheet are laminated and integrated is obtained, the porous sheet is processed in the same manner as in Example 1. The porous sheet of polyethylene resin having all of the sodium chloride powder countless continuous pores of porous sheet material eluted contained in cost. And, if the required characters and figures are black, and a positive film with a blank transparent area is attached to the porous sheet surface and irradiated with infrared rays from the film side, the black background part does not pass infrared rays, so only the transparent background part The carbon black that was not assembled in the porous sheet when irradiated with infrared rays generated heat and this part of the porous sheet melted, and after curing, a non-porous film that did not allow ink to pass through was covered with a black background A molded stamp material sheet in which printing convex portions were left in the portion was obtained. When the peeling sheet was peeled from the back side of the molded stamping sheet in which the porous sheet, the reinforcing cloth, and the peeling sheet were integrated, the entire back surface was the same as in the case of Example 1 described above. Innumerable woven fabric surface made of woven yarn constituting the reinforcing fabric, and a part of the porous sheet described above are exposed to the back side through the fabric of the reinforcing fabric, and its end portions are shredded by peeling of the release sheet. The sheet | seat with a reinforcement cloth formed in the ink absorption rough surface which consists of a spot-like part was obtained. The sheet with the reinforcing cloth thus obtained was cut so as to have the same length and width as in the case of Example 1 and connected to the ring to form a printing belt for rotary stamping. When the time for allowing the ink to naturally permeate was measured, the ink could be completely permeated into all character portions in 10 minutes. This means that the time required for the rotary stamping print belt obtained by the conventional method is significantly shorter than that of 2 hours, and it has been confirmed that the present invention is extremely effective.

It is an end elevation of the stamping material for penetration marking with a reinforcing cloth obtained in the present invention. FIG. 3 is an end view of a formed stamp material sheet obtained by heating and pressurizing a porous sheet material, a reinforcing cloth, and a peeling sheet. It is an end view which shows the state which has peeled the peeling sheet from the sheet | seat for stamps shown in FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Porous sheet material 2 Reinforcement cloth 3 Peeling sheet 4 Molding stamp material sheet 5 Penetration stamp material with reinforcement cloth 11 Porous sheet 12 Spotted part

Claims (5)

In the manufacturing method of a penetrating stamp material with a reinforcing cloth, a reinforcing cloth having ink flowability is stacked on the back side of a porous sheet material mixed with a foaming material, and both are heated and pressurized to be integrated, and the above-described reinforcement is applied. The above-mentioned heating / pressurizing treatment is performed in a state where the release sheet is stacked on the back side of the cloth, and a part of the porous sheet material melted by heating is impregnated into the release sheet through the cloth of the reinforcing cloth. The sheet material, the reinforcing cloth, and the peeling sheet are formed into a molded stamping material sheet, and then the peeling sheet is peeled off from the back side of the molding stamping sheet. Manufacturing method. 2. The production of a printing material for penetrating seals with a reinforcing cloth according to claim 1, wherein when the porous sheet material, the reinforcing cloth and the peeling sheet are stacked and heated and pressed, a printing portion is formed on the surface of the porous sheet material. Law. The method for producing a penetrating stamp material with a reinforcing cloth according to claim 1 or 2, wherein the foaming material is a washing substance, and the washing substance is washed after the peeling sheet is peeled off. The method for producing a penetrating stamp material with a reinforcing cloth according to claim 1 or 2, wherein the foaming material is a washing substance, and the washing substance is washed before peeling of the peeling sheet. In the osmotic stamping material with a reinforcing cloth in which a reinforcing cloth having ink flowability is attached and integrated on the back side of the porous sheet, the entire surface of the osmotic stamping material is made of a woven yarn constituting the reinforcing cloth. And, a part of the porous sheet described above is exposed on the back side through the reinforcing cloth, and its end is formed on an ink-absorbing rough surface consisting of innumerable spotted parts cut off by peeling of the peeling sheet. An infiltration stamp material with a reinforcing cloth.

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