JPH0615941A - Original plate for mimeograph - Google Patents

Abstract

PURPOSE:To facilitate the positioning of an original plate for mimeograph at the time of imprinting by installing a positioning frame which is placed outside a frame body and partly integrated with the frame body. CONSTITUTION:An original plate 10 for mimeograph is composed of a sheet of thermosensible mimeograph paper 12, a separator 14, a frame body 18 arranged to surround an ink-impregnating nonwoven fabric 16, and an ink- impermeable film 20. The frame body 18 is equipped with channels 18A, 18B, 18C which are formed on the three sides located outside the part coated with an adhesive layer 28. Two separated notch parts 19 are formed outside the channels 18A, 18C to give elasticity so that an outer frame 21 for positioning at printing is formed by the part larger than the thermosensible mimeograph sheet 12, integrating the frame body 18 and the outer frame 21. Therefore, only by pressing a stamping face on a paper sheet to be imprinted with the positioning frame fixed previously, the imprinting on a specified position can be carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stencil printing plate used in a stencil printing stamp device, and more particularly to a stencil printing plate which can be easily positioned.

[0002]

2. Description of the Related Art Conventionally, a heat-sensitive stencil sheet that can be perforated by infrared irradiation or a thermal head has been known. As a typical example thereof, a pressing stencil printing apparatus as shown in FIG. 6 is known. A frame 72 is provided around the porous support of a heat-sensitive stencil sheet 70 obtained by adhering a thermoplastic film and a porous support, and an ink is impermeable by the frame 72 and an ink impermeable cover sheet 74. A heat-sensitive stencil original plate 76 having a concave portion 84 as a coating portion is used.

This printing apparatus includes a pressing member 78, a pedestal 80 arranged to face the pressing member 78, and a pressing member 7.
No. 8 and a holding member 82 for the heat-sensitive stencil original plate 76 arranged in the peripheral portion of the opposing surface of the pedestal 80. Ink is applied to the concave portion 84 formed by the frame body 72 of the perforated heat-sensitive stencil plate 76, the cover sheet 74 is covered, and then the holding member 82 holds the pressing member 78 on the pressing member 78. It is a device that prints by moving and pressing the pedestal 80 via.

However, in printing with this apparatus, the user has to directly apply the ink, and there is a problem in that the ink stains hands and clothes, and uneven printing causes shading in the printing. .

In order to solve these problems, FIG. 7 shows a stencil printing plate disclosed in the specification and drawings attached to the application of Japanese Patent Application No. 4-6505 filed by the present applicant. This stencil printing plate 50 is a heat-sensitive stencil sheet 51 obtained by bonding a thermoplastic film and a porous support.
A separator 52 arranged on the porous support side of the heat-sensitive stencil sheet 51; a non-woven fabric 53 impregnated with ink;
A film 54, which is an ink impermeable base material, is sequentially laminated to form a supporting frame body 55.

The stencil printing plate 50 is used as a heat-sensitive stencil sheet 51 by a plate making apparatus using a thermal head.
A perforated image is formed by heating and melting the thermoplastic film of. Hereinafter, the formation of the punched image is referred to as plate making.
Next, the stencil printing plate 50 thus prepared is separated by the separator 5
After the separator 52 is pulled out in the direction of the arrow described in 2, the stencil printing is performed by mounting the separator 52 on a pressing member (hereinafter referred to as a stamp member) having a grip and pressing the stamp member against the printing paper. It is like this.

[0007] Furthermore, Japanese Patent Application No. Hei 3 filed by the present applicant.
FIG. 8 shows a stamp with a positioning function disclosed in the specification and the drawings attached to the application No. 114661. This stamp 60 with a positioning function is a conventional rubber stamp surface 6
1. A conventional stamp including a sponge-like pressing member 62, a stamp face base 63, and a grip 64 is provided with a rotatable stamp positioning frame 65. The stamp face opening portion 69 of the stamp positioning frame 65 is set at a desired position on the marking target paper surface 67, and the stamp main body is rotated in the rotation direction 68 while pressing the presser fixing portion 66 so that the upper stamping for positioning is performed. There is.

[0008]

However, since the stencil printing plate described above is provided with the frame body on the outside with respect to the stamp face, and the stamp face size is slightly smaller than the frame face, the stencil printing plate is located at a desired position on the paper surface. Difficult to get print. In addition, the stamp with positioning function also has a frame for positioning, but when applying ink from the stamp stand to the ink surface, it is necessary to open the positioning frame and then press the stamp stand to apply the ink. was there. Further, since the positioning frame is made of a transparent film which is a member different from the stamp base, the cost is high.

The present invention has been made in order to solve the above-mentioned problems, and a mechanism for forming a positioning frame body by a cheaper method to enable positioning at the time of imprinting of a stencil printing plate. Is provided.

[0010]

To achieve this object, a stencil printing plate having a positioning function of the present invention comprises a heat-sensitive stencil sheet obtained by adhering a thermoplastic film and a porous support, and the heat-sensitive stencil sheet. Stencil printing that is arranged on the side of the porous support of the stencil sheet and is impregnated with ink, a frame body that surrounds the impregnated body, and an ink impermeable substrate are sequentially laminated. It is an original plate and is characterized in that it is provided with a positioning frame which is arranged outside the frame body and is integrally provided by leaving a part of the frame body and separating the other part.

Further, a heat-sensitive stencil sheet obtained by adhering a thermoplastic film and a porous support to each other, an impregnated body which is arranged on the porous support side of the heat-sensitive stencil sheet and impregnated with ink, and an ink impermeable material. In the stencil printing plate formed by sequentially laminating the base material of (1), a positioning frame that is arranged outside the base material and is integrally provided by separating a part of the base material and the other part. It is characterized by being provided.

[0012]

According to the stencil printing plate of the present invention having the above-described structure, the stamp positioning frame is constituted by the constituent members of the stencil printing plate, and the positioning frame is positioned at a predetermined position to be preprinted, and the stamp portion is formed. Is rotated to align the stamp surface with the predetermined position and print.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a cross-sectional view of a stencil printing plate 10 according to the present invention, and FIG. 2 shows an exploded perspective view of the stencil printing plate 10 of this embodiment. The stencil sheet 10 is roughly divided into a heat-sensitive stencil sheet 12, a separator 14, and
It is composed of a non-woven fabric 16 impregnated with ink, a frame 18 arranged so as to surround the non-woven fabric 16, and a film 20 which is an ink impermeable base material.

The heat-sensitive stencil sheet 12, as shown in FIG.
It is composed of a thermoplastic film 22, an adhesive layer 24, and a porous support 26. In this embodiment, the thermoplastic film 22 is a polyethylene terephthalate film (hereinafter abbreviated as PET film) having a thickness of 2 μ, but other examples thereof include films of polypropylene, vinylidene chloride-vinyl chloride copolymer and the like. . The thickness of the PET film is preferably 1 μm to 4 μm. If it is less than 1 μm, the manufacturing cost is high and the strength is weak, which is not practical.
If it is 4 μm or more, a general thermal head having a rating of about 50 mJ / mm ² is too thick to punch. As the porous support 26, for example, porous thin paper mainly made of natural fibers such as Manila hemp, Kozo, Mitsumata, synthetic fibers such as polyethylene terephthalate, polyvinyl alcohol, polyacrylonitrile, and semi-synthetic fibers such as rayon is used. The heat-sensitive stencil sheet 12 configured as described above is adhered to the frame 18 by the adhesive layers 28 on the four sides as shown in FIG.

As shown in FIG. 2, the frame body 18 is provided with an opening corresponding to the size of the nonwoven fabric 16 in the central portion, and is formed to be one size larger than the heat-sensitive stencil sheet 12 in its planar shape. There is. Further, a small hole for extracting the separator 14 is provided in the upper right portion. Also,
An adhesive layer 28 for adhering the heat-sensitive stencil sheet 12 is applied to the upper surface of the frame 18 along the four sides of the opening (hatched portion in the figure). Further, the grooves 18A, 18B, 18C are formed on the three outer sides of the portion coated with the adhesive layer 28.
Further, by forming two notches 19 on the outer side of the grooves 18A and 18C to give elasticity, a portion larger than the heat-sensitive stencil sheet 12 has an outer frame 21 for positioning during printing. Therefore, the frame body 18 and the outer frame 21 are integrally formed.

In this embodiment, since the ink impregnated in the nonwoven fabric 16 is an oil-based ink, the material of the frame 18 is vinyl chloride, polypropylene, polyethylene, polyacetal, polyethylene terephthalate or the like which is not affected by the oil-based ink. .

The non-woven fabric 16 is impregnated with the oil-based ink in a saturated state, and the impregnated ink oozes out when pressure is applied to the non-woven fabric 16. The nonwoven fabric of this embodiment uses synthetic fibers such as polyethylene, polypropylene and polyethylene terephthalate. The thickness of the non-woven fabric 16 is preferably set to ½ or more and 3 times or less the thickness of the frame body 18. If the thickness is too thin, the heat-sensitive stencil sheet 12 will enter the inside of the frame 18 during plate making and will not come into contact with the thermal head, making perforation impossible. If the thickness is too thick, the nonwoven fabric 16 is compressed by the pressing force of the thermal head and pops out of the frame body 18. In such a state, the stencil printing master plate 10 cannot be transported by the frame body 18 during plate making, and therefore the transport pitch of the stencil printing master plate 10 becomes uneven or skewed due to variations in the thickness of the nonwoven fabric 16. Problems such as transportation occur. Non-woven fabric 1 by pressing force of thermal head during plate making
It is preferable that 6 is compressed and set to have the same thickness as the frame 18.

The separator 14 is arranged between the heat-sensitive stencil sheet 12 and the non-woven fabric 16, the right side of the separator 14 is passed through a small hole provided in the frame 18, and the frame 18 and the film 20 are separated. After passing through the space, it is projected to the right side of the stencil printing plate 10.

The size of the separator 14 is the nonwoven fabric 1
It is set slightly larger than the size of 6. This will be specifically described with reference to FIG. 2. The inside of the one-dot chain line in the figure of the frame 18 is a region where the separator 14 covers the non-woven fabric 16. In the present embodiment, the separator 14 is made of release paper obtained by subjecting high-quality paper or glassine paper to silicon treatment, or a resin film of polyethylene terephthalate, tetrafluoroethylene (trade name Teflon), or the like. As the required characteristics, those having poor wettability with the oil-based ink are preferable,
Specifically, the wetting angle is preferably 45 degrees or more. Further, when using release paper or the like, it is preferable to apply silicon processing not only to the contact surface with the non-woven fabric 16 but also to the entire surface. This is because if the wettability is good, or if the silicon is processed on only one side, the ink spreads to the heat-sensitive stencil sheet 12 side, so that the ink may ooze out from the perforated portion during perforation.

Film 20 which is an ink impermeable substrate
The adhesive layer 32 is applied to the upper surface (hatched portion in FIG. 2) and is bonded to the frame 18 and the nonwoven fabric 16. In this embodiment, the film 20 is a resin film such as vinyl chloride, polypropylene, polyethylene, or polyethylene terephthalate that is not affected by the oil-based ink.

Next, the above-mentioned stencil printing plate 10 is plate-made by a plate-making device (not shown). As the plate-making device, a device is used in which the surface of the thermoplastic film 22 of the heat-sensitive stencil sheet 12 is mirror-image printed by a thermal head according to the print information, and the thermoplastic film 22 is perforated by heating and melting. At the time of plate making, the thermal head is brought into contact with the stencil printing plate 10 by a predetermined pressing force.
At this time, since the separator 14 is disposed between the heat-sensitive stencil sheet 12 and the nonwoven fabric 16, the heat-sensitive stencil sheet 12
Even if the surface of the thermoplastic film 22 is perforated, the ink does not seep out from the perforated portion. The stencil printing plate 10 thus prepared is mounted on the stamp member 34 as shown in FIG.

The stamp member 34 comprises a handle portion 36, a cushion layer 38, and an adhesive layer 40. The stencil printing plate 10 is a film 2 of the stencil printing plate 10.
The 0-side is attached by adhering it to the adhesive layer 40 of the stamp member 34. After that, the separator 14 is pulled out from the stencil printing plate 10. In this state, the operator sets the positioning outer frame 21 with the three sides separated to a desired position on the printing paper 42 and fixes it with a finger, and then rotates it in the direction of arrow B to print the stamp member 34. When pressed against the paper 42, the non-woven fabric 16 is compressed and the impregnated ink oozes out from the perforated portion of the printing surface to transfer the ink to the printing paper 42.

In the above-mentioned embodiment, the positioning outer frame 21 is made of the same member as the frame body 18. However, as shown in FIG. 5, the groove 20 is formed on three sides of the film 20 as the base material of the present invention.
Even if A, 20B, and 20C are formed and the outer frame 20D for positioning is constituted by the same member as the film 20, the same effect can be obtained. Needless to say, it is effective that the member forming the positioning frame body is transparent, and it is further effective to add a line or a notch indicating the size of the stamp face to the positioning frame body portion. .

[0024]

As is apparent from the above description, since the positioning frame body is provided integrally with the stencil printing plate of the present invention, the positioning frame is previously fixed on the document to be imprinted and the stamp surface is formed. A master plate for stencil printing that can be marked on a specific position only by pressing and can be easily positioned can be realized at low cost.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a stencil printing plate according to the present invention.

FIG. 2 is an exploded perspective view of a stencil printing plate according to the present invention.

FIG. 3 is a sectional view of a heat-sensitive stencil sheet.

FIG. 4 is a diagram showing a usage state of a stencil printing plate according to the present invention.

FIG. 5 is an exploded perspective view showing another embodiment.

FIG. 6 is a cross-sectional view of a conventional pressing stencil printer.

FIG. 7 is an exploded perspective view of a conventional stencil printing plate.

FIG. 8 is a perspective view of a conventional stamp with a positioning function.

[Explanation of symbols]

 10 Stencil printing master plate with positioning function 12 Heat-sensitive stencil paper 14 Separator 16 Nonwoven fabric 18 Frame 20 Film 21 Outer frame for positioning 22 Thermoplastic film 26 Porous support

Claims (2)

[Claims] 1. A heat-sensitive stencil sheet obtained by adhering a thermoplastic film and a porous support, and an impregnated body which is arranged on the porous support side of the heat-sensitive stencil sheet and which is impregnated with ink.
In a stencil printing original plate in which a frame body arranged so as to surround the impregnated body and an ink impermeable base material are sequentially laminated, the stencil printing plate is arranged outside the frame body and is An original plate for stencil printing, characterized by comprising a positioning frame integrally provided by separating the other part except the part. 2. A heat-sensitive stencil sheet obtained by bonding a thermoplastic film and a porous support, and an impregnated body which is arranged on the porous support side of the heat-sensitive stencil sheet and which is impregnated with ink.
An original plate for stencil printing, which is formed by sequentially laminating an ink impermeable base material, is arranged outside the base material, and a part of the base material is left and other parts are separated and integrally provided. An original plate for stencil printing comprising a positioning frame.