Abstract:
Use of a sleeve for flexographic printing, comprising:a base sleeve;an intermediate layer enlarging the printing length, provided on the base sleeve and having a thickness of from 2 to 20 mm;a laser-engravable layer of a radiation-cured polymer; for enlarging the repeat.
Abstract:
A printing plate has a substrate, an array of cells on the substrate, wherein each cell corresponds to an element of a print image, a deformable polymer material localized into the cells such that each cell is at least partially formed from the deformable polymer material, a reservoir corresponding to each cell to collect the deformable polymer material as needed when the deformable polymer material is one of either melted or softened, and a heater to cause the deformable polymer material to either melt or soften. A method of forming a printing plate provides an array of cells, first heats the array of cells such that the deformable polymer material does one of either melts or softens, actuates the cells in the array to assume a deformed state, cools the array of cells to solidify the cells in the deformed state, second heats the cells such that the deformable polymer material in selected ones of the cells does one of either soften or melt and return to a less deformed state to form a printing pattern, and cools the surface to solidify the deformable polymer material in the printing pattern. A method of forming a printing plate provides an array of cells, heats the array of cells such that the deformable polymer material softens, actuates selected ones of the cells to deform surfaces of the selected ones to form a printing pattern, and cools the array of cells to solidify the printing pattern into a printing plate.
Abstract:
The invention provides an extended print sleeve having a longitudinal axis and adapted to form a printing form having a circumferential seam with no printing surface disposed a distance D along said longitudinal axis from one end thereof, comprising: a first print element; and a second print element; wherein each print element comprises a separate cylindrically-shaped support having a photosensitive layer thereon and disposed at a fixed position along said longitudinal axis, and wherein said second print element has a length substantially equal to distance D.
Abstract:
A workpiece 70 is set to holding rotating means and then liquid-state photosensitive resin 10 is supplied to a resin applying smoothing unit 150 to mold the workpiece 70 into a uniform thickness while rotating the workpiece 70 and applying the liquid-state photosensitive resin 10 to the outer periphery of the workpiece 70 by the resin applying smoothing unit 150. Moreover, while rotating the workpiece 70, liquid-state photosensitive resin, it is exposed by high-intensity ultraviolet light 30 and thereby, the surface of the photo-cured photosensitive resin is shaped to remove an unnecessary resin layer. Then, laser carving is performed by an infrared laser beam 40 to perform post-treatment.
Abstract:
A simple and convenient apparatus and method for producing stamps using a photo polymer. A sandwich is constructed which includes a first ridged UV clear panel, a translucent sheet having a negative image, a first cover sheet, a pair of spacers framing the image, a quantity of liquid photo polymer filling the area over the image and between the spacers, a substrate film over the photo polymer filling, a second cover sheet, and a second ridged UV clear panel. The sandwich is held together by clamps and is placed over a raised UV window in a UV window box to selectively harden the photo polymer. Following initial hardening, excess photo polymer is washed away, the hardened photo polymer is immersed in an exposure mixture and placed over the UV window for final hardening. The raised UV window allows easy assembly of the sandwich and clearance for the clamps.
Abstract:
A hollow cylindrical printing element, comprising a hollow cylindrical core material (A) and a resin layer (B) or a resin layer (C). The hollow cylindrical core material (A) further comprises a photosensitive resin hardened layer (1) of 0.05 to 50 mm in thickness having a fiber-like, cloth-like, or film-like reinforcement material and the shore hardness D of 30 to 100°. The resin layer (B) is laminated on the hollow cylindrical core material (A), has a thickness of 0.1 to 100 mm, and allows a pattern to be formed on the surface thereof. The resin layer (C) has a pattern formed on the surface thereof.
Abstract:
A method and system for forming a semiconductor device is provided. The method and system involves the utilization of a stamping tool to generate three-dimensional resist structures whereby thin film patterning steps can be transferred to the resist in a single molding step and subsequently revealed in later processing steps. Accordingly, the alignments between successive patterning steps can be determined by the accuracy with which the stamping tool has been fabricated, regardless of the dilations or contractions that can take place during the fabrication process.
Abstract:
The present invention is directed to a method for removing ink from a substrate containing at least one synthetic polymeric resin which comprises contacting the substrate with an aqueous solution of a glycol ether for a time sufficient, and under conditions effective, to remove the ink, wherein the glycol ether may be represented by Formula (I)R.sub.1 --O--R.sub.2 --OH (I)wherein R.sub.1 and R.sub.2 are independently selected from the group consisting of alkyl groups having from 1 to about 8 carbon atoms. This invention also pertains to improved methods for preparing de-inked recycled substrates employing the aqueous solution of glycol ether.
Abstract:
A novel two step process is disclosed for the manufacture of protected, distortion-free, full-color electrographic images for use on large format posters, billboards and the like. A novel electrographic element, which is used in the process, comprises a carrier layer; optionally, a protective layer; a conductive layer; a dielectric layer; and a substantially tack-free, adhesive layer which is activated at a pressure and a temperature which is above ambient pressure and temperature of the electrographic element. The novel electrographic imaging process comprises: A) producing a toned image layer on the surface of the electrographic element, so that the toned image layer is adhered to the surface of the adhesive layer; and B) pressure laminating the receptor substrate at an elevated temperature to the toned image layer to form the completed electrographic image. Optionally, the carrier layer is stripped from the conductive or protective layer which then serves to protect the electrographic image from abrasion and environmental contaminants. Alternatively, the carrier layer is conductive and, along with the conductive layer (if present), is stripped from the dielectric layer which then serves to protect the electrographic image from abrasion and environmental contaminants.
Abstract:
A device for forming a flexographic printing plate is disclosed. A preformed, imagewise irradiated sheet of film is heat treated by the device of the present invention to remove unwanted portions of a top layer, leaving radiation hardened relief images on the plate. The device has a heating means for supplying heat to said film, a first delivery means for delivering a sheet of absorbent material to a surface of the film, a second delivery means for supplying film to the heating means, pressure means for causing liquified material to be absorbed onto an absorbent material, and a separation means for separating the absorbent material from the film.