Plate making method of flexible printing plate based on three-dimensional photo-curing molding method

Abstract

The invention discloses a plate making method of a flexible printing plate based on a three-dimensional photo-curing molding method. The method comprises the following steps that S1, a three-dimensional model of the flexible printing plate is made, the three-dimensional model is subjected to slicing treatment to form a plurality of slicing layers, and slicing data is obtained; S2, a container groove is filled with liquid photosensitive resin; S3, a construction platform is extended into the liquid photosensitive resin, so that the distance between the bottom of the construction platform and the bottom of the container groove is the thickness of one slicing layer; S4, the liquid photosensitive resin at the bottom of the container groove is scanned and irradiated by using ultraviolet rays toform a printing plate slice; S5, the construction platform drives the formed printing plate slice to rise to the distance of the thickness of one slicing layer; S6, the liquid photosensitive resin atthe bottom of the container groove is scanned and irradiated by using the ultraviolet rays to form the next printing plate slice; and S7, the step 5 and the step 6 are repeated until the plurality ofprinting plate slices are formed. The method has the advantages of being few in working procedures, saving in materials, and beneficial to environmental protection.

Description

technical field [0001] The invention relates to the field of flexographic plate-making for flexographic letterpress printing, in particular to a plate-making method for a flexographic plate based on a stereolithography forming method. Background technique [0002] In recent years, the development of flexographic printing has shown a better and better trend, and the process of flexographic printing plate making is also developing continuously. The printing plates of early flexographic printing were made of hand-engraved rubber. After the invention of rubber vulcanization technology, they began to make plates with vulcanized rubber, so they were called hand-made rubber engraving plates. With the development of photosensitive chemical materials, liquid photosensitive resin flexographic plate-making process and solid photosensitive resin flexographic plate-making process based on film imaging technology appeared. The latter evolved into laser direct imaging under the background ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a stereolithography-based molding method in order to overcome the defects in the prior art that the flexographic printing plate-making process has many plate-making processes, the waste of the plate washing liquid is not environmentally friendly, and the washed plate material is wasted. The plate making method of the flexographic printing plate

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