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公开(公告)号：EP1080941A3
公开(公告)日：2001-06-13
申请号：EP00118786.3
申请日：2000-08-30
摘要： A stencil is made by thermally perforating a stencil material by the use of a thick film thermal head. The thermal head includes an electrical insulating substrate and a glaze layer superposed on a heat radiating plate in this order, a resistance heater formed on the glaze layer to continuously extend in a main scanning direction, a plurality of electrodes of at least two lines which extend in a direction intersecting the main scanning direction in contact with the resistance heater and are alternately arranged in the main scanning direction, and a protective layer which covers exposed part of the resistance heater and the electrodes. The resistance heater is not smaller than 1µm and not larger than 10µm in thickness, and the space between each pair of adjacent electrodes in the main scanning direction is not smaller than 20% and not larger than 60% of the center distance between the adjacent electrodes. The stencil material is conveyed by a conveyor in a sub-scanning direction relative to the thermal head with the stencil material kept in contact with the thermal head. The thermal head and the conveyor are controlled so that the length in the sub-scanning direction of the resistance heater at the portion between each pair of adjacent electrodes is not smaller than 100% and not larger than 250% of the sub-scanning pitch.
摘要翻译： 模板是通过使用厚膜热敏头对模板材料进行热打孔而制成的。 热敏头包括电绝缘基片和依次叠置在散热板上的釉层，在釉层上形成的电阻加热器，以在主扫描方向上连续延伸，至少两条延伸的电极 在与主扫描方向交叉的方向上与电阻加热器接触并且在主扫描方向上交替地布置;以及保护层，其覆盖电阻加热器的暴露部分和电极。 电阻加热器的厚度不小于1μm并且不大于10μm，并且主扫描方向上每对相邻电极之间的间隔不小于相邻电极之间中心距离的20％且不大于60％ 。 模板材料通过传送带在副扫描方向上相对于热敏头进行传送，其中模板材料与热敏头保持接触。 热敏头和传送器被控制成使得在每对相邻电极之间的部分处的电阻加热器的副扫描方向上的长度不小于副扫描间距的100％且不大于250％。
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公开(公告)号：EP0650830B1
公开(公告)日：2001-02-07
申请号：EP94307970.7
申请日：1994-10-28
IPC分类号： B41C1/14
CPC分类号： B41C1/144 , Y10S101/46
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13.发明公开Stencil sheet and method for perforating the same 审中-公开Druckschablonenblatt und Verfahren zum perforieren deselben
公开(公告)号：EP0985545A1
公开(公告)日：2000-03-15
申请号：EP99117651.2
申请日：1999-09-07
IPC分类号： B41N1/24
摘要： Provided is a stencil sheet excellent in uniformity in solid print portion, improved in uneven density and setoff, and further excellent in resolution of small letters. A method for perforation of the stencil sheet is also provided. The stencil sheet comprises a laminate of a thermoplastic resin film and a porous substrate mainly composed of thermoplastic fibers, which has an average airflow resistance in a range of 0.05-0.15 Kpa·s/m as measured at a perforated part of 20-50 % in opening ratio The stencil sheet preferably has a wet tensile strength of 200 gf/cm or more. The thermoplastic resin film is preferably a polyester resin film, and the thermoplastic fibers are preferably made of a polyester resin. When perforation is made in a stencil sheet to form many fine openings corresponding to an image to be printed, good image is obtained by carrying out the perforation to give an average airflow resistance of 0.05-0.15 Kpa·s/m at the perforated part of the stencil sheet.
摘要翻译： 提供了固体印刷部分的均匀性优异的模版，提高了不均匀的密度和截止性，并且还具有小的字母分辨率的优异性。 还提供了一种用于穿孔蜡纸的方法。 蜡纸包括热塑性树脂膜和主要由热塑性纤维构成的多孔基材的层压体，其在穿孔部分中测量的平均气流阻力为0.05-0.15Kpa·s / m 2， 开模比率蜡纸优选具有200gf / cm以上的湿拉伸强度。 热塑性树脂膜优选为聚酯树脂膜，热塑性纤维优选由聚酯树脂制成。 当在蜡纸上形成穿孔以形成对应于待印刷图像的许多细孔时，通过进行穿孔获得良好的图像，以在穿孔部分处获得0.05-0.15Kpa / s的平均气流阻力 蜡纸。
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公开(公告)号：EP0689934A1
公开(公告)日：1996-01-03
申请号：EP94910024.2
申请日：1994-03-16
申请人： Daisen Co., Ltd.
发明人： SAKAGUCHI, Akenobu
IPC分类号： B41C1/14
CPC分类号： B41C1/144
摘要： This invention provides a form plate making apparatus which can reduce the time necessary for a plate making operation, can make the plate making operation easy, and can accomplish a high precision plate making operation. A planar plate making table is disposed on an upper part of a casing, and head carriage mechanism for moving a thermal head is disposed on this plate making table. A screen frame to which a screen equipped with a heat-sensitive material is fitted is placed on the plate making table, and a platen is disposed inside this screen frame so that the screen equipped with the heat-sensitive material is brought into close contact with the platen. The thermal head is moved on the plate making table by the head carriage mechanism, and power feed control is applied to heating elements of the head in accordance with character and image data so as to bore predetermined holes in the heat-sensitive material of the screen. Because the plate is produced while the screen is fitted to the screen frame as described above, a plate having the holes correctly bored at predetermined positions to the screen frame can be obtained.
摘要翻译： 本发明提供一种可减少制版操作所需的时间，可使制版操作容易，并可实现高精度制版操作的制版装置。 在壳体的上部配置平面制版台，在该制版台上配置用于使热敏头移动的头部滑架机构。 将装有热敏材料的丝网安装在其上的丝网框架放置在制版台上，并且在该丝网框架内部放置台板，以使装备有热敏材料的丝网紧密接触 平台。 通过磁头滑架机构使热敏头在制版台上移动，并且根据字符和图像数据对头的加热元件进行供电控制，以便在屏幕的热敏材料中钻出预定的孔 。 由于在如上所述将屏幕安装到屏幕框架上时制造板，所以可以获得具有在屏幕框架的预定位置处正确钻出的孔的板。
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公开(公告)号：EP0589710A2
公开(公告)日：1994-03-30
申请号：EP93307576.4
申请日：1993-09-24
IPC分类号： B41C1/14
CPC分类号： B41C1/144
摘要： In the stencil-producing apparatus of the present invention, both the stencil production and the thermal printing are possible. In the apparatus, a thermal head performs stencil production by forming dot-shaped perforations in a heat-sensitive stencil medium and prints images by forming dot-shaped images in a heat-sensitive imaging medium by heating a plurality of thermal elements aligned in a main scanning direction. During thermal printing, the pitch of the relative movement between the heat-sensitive medium and the thermal element in the auxiliary direction is set to a minimal. During stencil production, heat drive of the thermal elements is selectively precluded in the main scanning direction. Heat drive of the thermal elements is selectively precluded also in the auxiliary scanning direction. Or otherwise, the pitch of the relative movement between the thermal head and the heat-sensitive stencil medium in the auxiliary scanning direction is increased to a pitch longer than the pitch during printing. This provides spaces between adjacent dots of the resultant stencil. Stencil printing with no blurring and no set off can be achieved with such a stencil. Also, good thermal printing on heat-sensitive imaging medium with no spaces between adjacent dots during printing can be achieved.
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公开(公告)号：EP0572193A2
公开(公告)日：1993-12-01
申请号：EP93303994.3
申请日：1993-05-24
发明人： Okumura, Takashi
摘要： A thermal stenciling device in which the heat generating elements are sized to create optimal perforations based upon the type of stencil paper such that the ink does not bleed, produce back images or incompletely dry upon use and a method for determining the size of the heat generating elements. The size is based on desired dot pitches in both the main and sub-scanning directions which are a function of the stencil paper and ink.
摘要翻译： 一种热模版设备，其中发热元件的尺寸设计成基于模板纸的类型产生最佳穿孔，使得在使用时墨不会渗出，产生背影或不完全干燥，以及确定发热尺寸的方法 元素。 尺寸基于蜡纸和墨水的函数在主扫描方向和副扫描方向上的所需点距。
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公开(公告)号：EP0500333A3
公开(公告)日：1993-01-13
申请号：EP92301344.5
申请日：1992-02-19
CPC分类号： B41C1/144
摘要： In the thermal stencil master plate and the method for processing the stencil master plate according to the present invention, since swelled and solidified unprocessed regions formed by film lumps or a part thereof produced from the melted film are provided continuously, the merging and excessive expansion of the perforations can be avoided so that clear printed picture images may be formed even in the regions of solid picture images. Further, the ink passing through each of the perforated dots is reliably separated from the ink passing through adjacent perforation dots before it is deposited onto the printing paper so that excessive deposition of the ink is avoided and the time required for drying the printing ink is reduced so that offsetting may be avoided.
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20.发明公开Stamp device having means for controlling dot perforation density 失效Stempelvorrichtung mit Mittel zum Steuern der Punktdichte。
公开(公告)号：EP0517541A1
公开(公告)日：1992-12-09
申请号：EP92305183.3
申请日：1992-06-05
摘要： A stamp device capable of controlling numbers of perforations formed by a thermal head (7). A perforated image is formed by the thermal head in a heat sensitive stencil sheet (1). An ink in an ink pad (32) passes through the perforated image for providing an inked image on a print sheet (33). If perforations are densely formed, excessive ink may pass through the perforations. Therefore, the numbers of the perforations are controlled or reduced at a thick character portion. A control unit is provided for changing ON dot area to the OFF dot area of the thermal head if the ON dot area are densely provided.
摘要翻译： 一种能够控制由热敏头（7）形成的穿孔数量的印模装置。 穿孔图像由热敏头版印模（1）形成。 油墨垫（32）中的油墨通过穿孔图像，以在印刷纸（33）上提供油墨图像。 如果穿孔密集形成，则过量的墨水可能穿过穿孔。 因此，穿孔的数量在厚字符部分被控制或减少。 如果ON点区域被密集地设置，则控制单元用于将ON点区域改变为热敏头的OFF点区域。
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