Toppan Printing Co., Ltd.

Tatsuo Masaki

Kenzo Fukuyoshi

Hiroji Kumagai

Kiyoshi Masui

Keiji Miyajima

Toyoshi Nishimoto

A transferring layer on a transfer cylinder improves separability for facilitating complete transfer of ink from the transferring layer onto the material to be printed. This separability arises from the inclusion of a fluorine compound or a silicone compound in the transferring layer. In order to prevent incomplete transfer of ink from an intaglio printing plate to this transferring layer of the transfer cylinder, the printing speed of the transfer cylinder relative to the plate is controlled, and at the same time the viscosity of the ink is kept in a certain range. The use of a screen mesh is eliminated, thus preventing various problems associated with its use. A fine pattern of thick film can thus be printed with accuracy on various materials including fragile materials and those with surface irregularities.

Thick film printing method

A method for manufacturing a phosphor screen for a color picture tube is disclosed which comprises the steps of transferring an ink pattern contained on an intaglio having a surface comprising ink receiving portions with a depth of 10.mu. or more, said ink containing 15 to 90% by volume of phosphor powder, by rotatably moving at a first speed a transcriber having a cylindrical surface covered with a layer of a soft material along the surface of the intaglio in order to apply the ink pattern onto the cylindrical surface of the transcriber and transcribing said ink pattern from said transcriber onto an object to be printed for a color picture tube by rotatably moving the transcriber at a second higher speed along the surface of said object.

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Tanashi, Japan

Tatsuo Masaki