Asahi Kasei Kogyo Kabushiki Kaisha

Sango Toki Co., Ltd.

Akebono Process Co. Ltd.

Nobuyasu Kinoshita

Shohei Nakamura

Tsuneaki Usui

Hiraku Goto

The actinic radiation-exposed or unexposed areas, whichever are relatively low in abrasion resistance, formed in a photosensitive composition layer superimposed on a substrate are selectively removed by blowing an abrasive material against the layer, thereby to obtain a desired image in the layer. By utilizing an article body intended for engraving a pattern as the substrate and by further blowing an abrasive material against the article body until the article body comes to have a pattern of desired depth, a pattern-engraved article can be advantageously produced. The above processes are extremely advantageous over the prior art because any solvent is not needed for the development so that the treatment of the waste solvent and the drying step can be eliminated and because a pattern-engraved article can be produced by the dry process in which the number of necessary steps is reduced.

Dry process for forming an image

A transfer element for sandblast carving comprising, in order, a flexible substrate, an intermediate resin layer which is strippable from the flexible substrate and is a pressure-sensitive adhesive to an etchable material, and a resist comprising a photocured photosensitive resin.

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Hirakata, Japan

Nobuyasu Kinoshita