141 |
Photo-sensitive laminate film for use in making the mask comprising a
supporting sheet, an image mask protection layer which is water
insoluble and a water soluble image mask forming composition |
US116277 |
1993-09-03 |
US5427890A |
1995-06-27 |
Tsutomu Suzuki; Ikuo Suzuki |
A method for engraving and/or etching comprising the steps of: (a) a process for exposing, to light, a layer of a water-soluble resin composition of a laminated photosensitive film which comprises a supporting sheet, a image mask-protection layer peelablly adhered to the supporting sheet and a layer of a water-soluble resin composition having photocrosslinkability to thus cause crosslinking of the exposed area of the resin layer to thereby form a predetermined pattern on the resin layer; (b) a process for dissolving out the non-crosslinked portion of the layer of the water-soluble photo-sensitive resin composition by developing the layer with water to thus from an image-carrying mask which is constituted from the crosslinked area of the photo-sensitive resin composition remaining on the image mask-protection layer; (c) a process for adhering the photo-sensitive laminate film on which the images are formed to the surface of a material to be processed; (d) a process for peeling off the supporting sheet from the photo-sensitive laminate film; and (e) a process for engraving and/or etching the material to be processed through the image-carrying mask adhered to the material, makes it possible to engrave and/or etch fine and precises images on the surface of a material to be processed such as glass, metals, plastics or the like. |
142 |
Printing screen with plugs and method for printing a variable thickness
pattern |
US168665 |
1993-12-16 |
US5390595A |
1995-02-21 |
Thomas V. Cutcher |
A printing screen, a process of making such a printing screen, and a method of screen printing on hard non-absorbent materials, such as glass, are provided to form a pattern with selected areas of variable thickness. A pattern is formed in the screen utilizing an emulsion coating which has been hardened in the usual manner. A second pattern is formed in a second emulsion coating on a surface of the screen in at least one area of the first pattern. The second emulsion coating is substantially thinner than the first coat and includes a specific dot size and arrangement to achieve additional support, which results in a thinner layer of ceramic ink being deposited when the screen is in use. |
143 |
Method for manufacturing rotary screen |
US887094 |
1992-05-22 |
US5338627A |
1994-08-16 |
Tatsuo Shigeta |
A method of manufacturing a rotary halftone screen which has no slit or meshless portion by the use of galvano process including a step of exposing the roll coated with high-sensitivity photosensitive film by a multiple number of laser beams. The multiple number of laser beams are controlled by preset electric data so that desired halftone points of negative halftone image are exposed on the roll. |
144 |
Method by use of the letterpress |
US968876 |
1992-10-30 |
US5326673A |
1994-07-05 |
Kuninobu Kurumisawa |
The present invention relates to a letterpress for transferring on which a dot-like fine form plate surface is formed closely resembling a photoimage, and to a method of transferring by use of the letterpress for transferring. The letterpress is formed by exposing a photosensitive resin through a photofilm to a parallel light to harden the film of the photosensitive resin corresponding to the lightscreening area of the photofilm. The area of the photo resin other than the hardened film is then removed by rinsing with water to form the letterpress which has a convex corresponding to the light-penetrating area of the photofilm. The convex is then directly coated with various dyes and press printed on and transferred to a transfer material, or the convex is coated with a photosensitive resin and press printed on a transfer material. The photosensitive resin film transferred is then exposed to light and a non-light exposure area is rinsed with water, thereby allowing the material to be applied as a resistant mask for dyeing or blast processing. |
145 |
Process for making metal ledge on stencil screen |
US879211 |
1992-05-06 |
US5322763A |
1994-06-21 |
Allan Cairncross; Chester A. Thayer, II |
A process for making a metal ledge on one side of a metal screen involves exposing through the stencil screen a photoresist layer, removing unexposed photoresist areas, plating the metal stencil screen where the unexposed photoresist has been removed and removing the exposed photoresist. |
146 |
Method of producing a screen for printing a heating line pattern and a
method of forming a heating line pattern on a glass plate |
US714586 |
1991-06-13 |
US5240816A |
1993-08-31 |
Noriyuki Noguchi; Naokazu Mazaki |
A method of producing a screen for printing a heating line pattern which comprises the steps of: depositing a first photosensitive emulsion layer on a screen, masking a predetermined portion of the first photosensitive emulsion layer corresponding to a heating line pattern comprising bus bars and heating lines, exposing the first photosensitive emulsion layer except the masked portion to form the first cured emulsion layer, removing the unexposed portion of the first photosensitive emulsion layer to form the permeable portion in the first cured emulsion layer, depositing a second photosensitive emulsion layer at least on the first cured emulsion layer adjacent to the permeable portions corresponding to the bus bars, masking predetermined portions of the second photosensitive emulsion layer on the first cured emulsion layer, exposing the second photosensitive emulsion layer except the masked portions to form a second cured emulsion layer comprised of unmasked exposed portions, and removing the unexposed portion of the second photosensitive emulsion layer to leave unmasked exposed portions of the second cured emulsion layer on said first cured emulsion layer. |
147 |
Letterpress for transferring and method of transferring by use of the
letterpress for transferring |
US605376 |
1990-10-30 |
US5185225A |
1993-02-09 |
Kuninobu Kurumisawa |
The present invention relates to a letterpress for transferring on which a dot-like fine form plate surface is formed closely resembling a photoimage, and to a method of transferring by use of the letterpress for transferring. The letterpress is formed by exposing a photosensitive resin through a photofilm to a parallel light to harden the film of the photosensitive resin corresponding to the lightscreening area of the photofilm. The area of the photo resin other than the hardened film is then removed by rinsing with water to form the letterpress which has a convex corresponding to the light-penetrating area of the photofilm. The convex is then directly coated with various dyes and press printed on and transferred to a transfer material, or the convex is coated with a photosensitive resin and press printed on a transfer material. The photosensitive resin film transferred is then exposed to light and a non-light exposure area is rinsed with water, thereby allowing the material to be applied as a resistant mask for dyeing or blast processing. |
148 |
Process for preparing a rotary silk-screen printing stencil for printing |
US332750 |
1989-04-03 |
US5147762A |
1992-09-15 |
Wilhelmus J. F. Verheesen; Arnoldus T. Steenkamer |
Disclosed is a process for preparing a cylindrical rotary screen printing stencil to made it suitable for use in a screen printing machine.In the process the steps of application of a photosensitive coating, drying, pattern-wise exposure, development and hardening are carried out while the end rings are already fitted in the ends of the screen.Described is also a system of devices suitable for carrying out said process. |
149 |
Apparatus for producing a printing stencil plate for screen printing |
US540402 |
1990-06-19 |
USH1062H |
1992-06-02 |
Masahiro Umezawa |
An apparatus for sticking onto a screen plate a photosensitive laminated film obtained by forming a layer of a photosensitive agent on one surface of a base film, wherein a blade is provided on the front side of rollers that hold the photosensitive laminated film to press-adhere said photosensitive laminated film onto the screen plate. The tip of the blade presses the photosensitive laminated film onto the screen plate such that an angle is defined between the photosensitive laminated film and the screen plate to get rid of the air. Therefore, no bubbles are trapped therebetween. |
150 |
Screen process printing plate for printing with high precision |
US749469 |
1991-08-15 |
US5111743A |
1992-05-12 |
Takayuki Umaba; Jiro Ono; Syunsuke Takagi; Makoto Sawada; Hideki Adachi; Hirofumi Shimizu; Mokuhei Hashimoto; Tetsu Takahashi |
A screen process printing plate includes a screen holding plate provided with an opening and having flexibility and restoring capability. A screen is fixed to the screen holding plate and covers at least a part of the opening. A fixed member is provided for fixedly holding one end of the screen holding plate and a movable member is provided for holding an opposite end of the screen holding plate. The movable member is movable in a direction parallel to a plane defined by the screen. A biasing device is provided for biasing the movable member in a predetermined first direction away from the fixed member and in the direction of movement of the movable member. When a squeegee presses the screen holding plate and the screen, the screen holding plate and the screen are flexibly curved easily into contact with an object to be printed. Since the tension is supported by the screen holding plate, excessive tension does not occur in the screen. The screen is snapped-off by the restoring force of the screen holding plate. |
151 |
Process for the lithographic manufacture of electroformable
microstructures having a triangular or trapezoidal cross-section |
US452018 |
1989-12-18 |
US5045439A |
1991-09-03 |
Asim Maner; Jurgen Mohr |
A process for the lithographic manufacture of electroformable microstructure having a triangular or trapezoidal cross-section from a resist material.A composite body is provided which is comprised of a layer of resist material on an electrically conductive substrate. The resist layer is irradiated to form irradiated band regions in the resist layer by conducting a first irradiation in which the substrate having the resist layer thereon is positioned at an angle of +.alpha. relative to a plane orthogonal to the incident radiation to form a first set of band-shaped regions, and a second irradiation in which the substrate is positioned at an angle of -.alpha. relative to a plane orthogonal to the incident radiation to form a second set of band-shaped regions which overlap the first set at the interface between the resist layer and the substrate. The irradiated regions of the resist layer are developed to produce microstructures. |
152 |
Arrangement for producing a plurality of printing forms automatically
and in sequence |
US234958 |
1988-08-22 |
US4903595A |
1990-02-27 |
Sylve J. D. Ericsson |
Printing forms are produced by arranging in a magazine a plurality of printing frames, each including a stretch cloth and a light-sensitive coating. The printing frames are arranged in parallel relationship and parallel to an outlet slit of the magazine. The frames are advanced within the magazine toward the outlet slit in a first direction. The printing frames are sequentially passed through the outlet slit in a second direction disposed substantially perpendicular to the first direction. The frames pass through the slit while remaining parallel to printing frames disposed in the magazine. Movement of each printing frame traveling in the second direction is terminated when the printing frame occupies a position in front of an imaging apparatus. The imaging apparatus is actuated to expose the light sensitive coating to an image corresponding to a desired printing pattern. Movement of the printing frame with the exposed light-sensitive coating is initiated to move the printing frame out of the exposing station and into a developing station where the printing pattern is developed. |
153 |
Method of manufacturing shadow mask and apparatus |
US195625 |
1988-05-18 |
US4861422A |
1989-08-29 |
Makoto Kudou; Katsumi Ichikawa |
A method of manufacturing a shadow mask, comprising the steps of forming a first resist pattern having a large number of openings on one major surface of a thin metal plate and a second resist pattern on the other major surface, the second resist pattern having a large number of openings with an opening size larger than that of the first resist pattern, etching the thin metal plate surface having the first resist pattern to form first recesses, removing the first resist pattern, forming an etching-resistive layer on the thin metal plate surface having the first recesses to fill the first recesses, etching the thin metal plate surface having the second resist pattern to form second recesses which have a size larger than that of the first recesses and communicate with the first recesses, treating and swelling the etching-resistive layer with an alkali solution, spraying warm water to the etching-resistive layer to remove the etching-resistive layer, and removing the second resist pattern. |
154 |
Screen printing stencil for making elastomer sealing layers on flat
gasket plates and method for making same |
US929744 |
1986-11-12 |
US4761364A |
1988-08-02 |
Karl Schmauder |
Screen printing stencil for making sealing layers of elastomer material on a flat gasket. A screen carrying a photoresist layer exhibits areas of increased height on the side with which it is made to contact the flat gasket, in order to simultaneously produce sealing layer areas of different thicknesses. To make such a screen printing stencil, its screen is first provided with a first photoresist layer in which areas are then delimited by means of adhesive tapes, following which these areas may be coated with a second photoresist layer. The desired screen printing stencil is then obtained by both photoresist layers being jointly exposed and the non-exposed areas of the photoresist material being washed out. |
155 |
Mask element for selective sandblasting and a method |
US601825 |
1984-04-19 |
US4587186A |
1986-05-06 |
Shohei Nakamura; Yoshimasa Tuji |
A mask element for selective sandblasting comprising a support film layer and, superimposed thereon in the following order, a retainer film layer of a water-insoluble cellulose derivative and a photoresist layer of a pattern mask, said photoresist layer of pattern mask being adapted to adhere to the surface of an article body to be engraved with a strength such that the mask is not detached therefrom during sandblasting. By the use of the mask element of the present invention, a pattern exactly corresponding to that of the mask, even if it is very fine, can be engraved on an article body nicely. |
156 |
Modified method of making a stencil plate |
US751722 |
1985-07-03 |
US4581106A |
1986-04-08 |
Chester D. Fuhrman |
A stencil plate is made by an electroplating process rather than a steel fabricated process. A resist material and a film are placed upon a matrix and by using conventional photoresist operations, a resist coating is formed on the matrix in the shape of the apertures to be formed in the stencil plate. Metal is electroplated on the upper surface of the matrix and around the shaped resist material forming a stencil plate.In some areas, a narrow strip of material must be deposited and overplating occurs. Supplemental open areas adjacent the narrow strips to be plated form removable slugs of plating material which help eliminate the overplating in the narrow strip areas. |
157 |
Apparatus for applying emulsion onto screen printing plate |
US624060 |
1984-06-25 |
US4509455A |
1985-04-09 |
Kenji Shirataki |
A method and an apparatus for applying an emulsion onto a screen printing plate are disclosed, in which two squeegees are arranged on either side of the screen, one squeegee of which is directed to the applying operation and the other squeegee is directed to the scraping and recovering operation. In accordance with the invention, a high quality screen printing plate may be obtained and very convenient operation and handling may be achieved. |
158 |
Photopolymerizable composition for producing screen printing stencils |
US421271 |
1982-09-22 |
US4499176A |
1985-02-12 |
John R. Curtis; John D. Renwick |
Aqueous compositions useful in making stencils for screen printing by the direct, indirect or direct/indirect method comprise a photopolymerizable monomer, a water-insoluble photoinitiator, a tertiary amine accelerator, a water-soluble colloid, water, and a water-miscible organic solvent. |
159 |
Stencil making and utilization methods, apparatus and articles |
US324733 |
1981-11-25 |
US4477557A |
1984-10-16 |
Georg Rauch |
Stencils of a desired design are made by selective hardening of first and second individually soluble substances being hardenable in admixture in a foraminous stencil blank, which is initially impregnated with the first substance. The second substance is stored separately from such impregnated stencil blank, such as in a pen. This separately stored second substance is thereafter selectively applied in the form of the desired design to the impregnated stencil blank for admixture with the first substance only immediately prior to a desired selective hardening of the admixed first and second substances, to render part of the stencil imperforate. A stencil is also exposed to dissolution of any applied first and second substances outside of the latter part, for rendering the stencil perforate outside of that part. |
160 |
Process for preparing a mask for sandblasting |
US493909 |
1983-05-12 |
US4456680A |
1984-06-26 |
Shohei Nakamura; Yoshimasa Tuji |
A process for preparing a mask for sandblasting, in which there is employed a transparent soluble peel-aid film layer superimposed on a transparent protective film layer to cover a liquid photopolymerizable composition layer. According to the process, the protective film can be readily stripped and a mask for sandblasting which has a strong adherence to articles to be engraved can be produced efficiently without occurrence of troubles, such as chipping of high-precision portions, e.g. fine dots and lines, of polymeric images. |