Seamless laser graphic transfer technology between basilar membranes

Abstract

The invention discloses a seamless laser graphic transfer technology between basilar membranes, which comprises the following steps: coating: coating laser transfer paint on one side of a basilar membrane A by a coating machine, and then heating, drying and curing the paint; mould pressing: carrying out double-roll mould pressing on the basilar membrane A by a printing roller and a compression roller on a mould pressing machine, and then transferring the laser graphics on the printing roller after mould pressing onto the transfer basilar membrane A so as to reach the seamless effect; membrane combining: arranging the transfer basilar membrane A on a die assembly machine which overlaps with the transfer basilar membrane A and the basilar membrane B which are provided with seamless laser graphics on the surface, and then mould pressing the membranes together via a membrane combining compression roller; and stripping: stripping the transfer basilar membrane A and the basilar membrane B after combination by a cutting machine, the seamless laser graphic information on the transfer basilar membrane A is transferred to the surface of the basilar membrane B at this time, the seamless laser graphic information on the transfer basilar membrane A still exists, and the membrane combination and stripping processes can be repeated for many times. The technology can greatly reduce the use amount of the transfer membranes.

Description

technical field [0001] The invention relates to a transfer printing process, in particular to a seamless laser image-text transfer process between base films. Background technique [0002] Embossed laser printing is a high-tech printing process, which is widely used in advertising, illustrations and packaging because of its advantages of anti-counterfeiting and aesthetics. The method of laser molding in the prior art is that firstly, the lithographic molded plate roll is pasted on the cylindrical molded roller, so that there is inevitably a seam of the molded plate; the laser molded product produced by using such a molded plate and a molding device, For example, oriented polypropylene (OPP) film, polyethylene terephthalate (PET) film, polyvinyl chloride (PVC) film and paper, etc., because the embossed laser graphics on them have seams However, there is a seam between the plates so that the graphics and text are not continuous, and the existence of the seam seriously affects...

AI Technical Summary

Problems solved by technology

The method of laser molding in the prior art is that firstly, the lithographic molded plate roll is pasted on the cylindrical molded roller, so that there is inevitably a seam of the molded plate; the laser molded product produced by using such a molded plate and a molding device, For example, oriented polypropylene (OPP) film, polyethylene terephthalate (PET) film, polyvinyl chloride (PVC) film and paper, etc., because the embossed laser graphics on them have seams However, there is a seam between the plates so that the graphics and text are not continuous, and the existence of the seam seriously affects the application of laser molded products on roll printing equipment.

When the printed graphic is printed on the stencil, printing waste will be generated; at present, some printing manufacturers use expensive seam jumping devices to skip the molded stencil seam on the laser molded product during printing to avoid printing waste, but jumping The stitching device is very expensive and requires the close cooperation of a special molding manufacturer. Therefore, it is difficult to popularize the seam jumping device in the printing industry

[0003] The U.S. patent application with the publication number US2004 / 0256052A1 discloses a seamless laser molding method, which uses a cylindrical seamless molded plate, which solves the problem of the seam to a certain extent, but the production efficiency is not high

[0004] In addition, in the prior art, film pressure laser printing needs to make publishing rollers first, which is to wrap the flat nickel plate on the prototype roller, then apply the laser transfer coating evenly on one side of the transfer base film, and then use the printing roller to The graphic information on the plate roller is transferred to the base film by rolling with the pressure roller. This transfer base film can only be used once

Therefore, the usage of the base film is large, the waste is serious, and the usage of the plate roll will be more

This will not be conducive to the reduction of printing costs and the improvement of product quality

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