HEAT-SENSITIVE SCREEN MASTER

• Main Author: EZURE SHINICHI
• Format: Patent
• Language: English; Japanese
• Published: 25.10.2018
• Subjects: LINING MACHINES; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING,INKING, DAMPING, OR THE LIKE; PERFORMING OPERATIONS; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM; PRINTING; PRINTING PLATES OR FOILS; PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTINGSURFACES; STAMPS; TRANSPORTING; TYPEWRITERS

PROBLEM TO BE SOLVED: To provide a heat-sensitive screen master excellent in visibility of a plate-making part and excellent preferably in perforating property.SOLUTION: A heat-sensitive screen master is obtained by bonding a screen gauze and a thermoplastic resin film. In the heat-sensitive screen master, a heat-sensitive coloring agent comprising at least a leuco dye, a developer and a binder is provided at a screen gauze side of the heat-sensitive screen master. The heat-sensitive coloring agent is fixed to the screen gauze with the binder, and the screen gauze thus obtained and the thermoplastic resin film are bonded using an adhesive agent. It is also preferable to laminate the thermoplastic resin film on a coating surface of the heat-sensitive coloring agent of the screen gauze coated with a heat-sensitive coloring agent-containing process liquid, bond the thermoplastic resin film and the screen gauze with the binder contained in the heat-sensitive coloring agent, and fix the heat-sensitive coloring agent to the screen gauze.SELECTED DRAWING: None 【課題】製版部の視認性に優れ、望ましくは穿孔性にも優れた感熱スクリーンマスターを提供する。【解決手段】スクリーン紗と熱可塑性樹脂フィルムとを貼り合わせてなる感熱スクリーンマスターであって、ロイコ染料、顕色剤及びバインダーから少なくとも構成される感熱発色剤を、前記感熱スクリーンマスターの前記スクリーン紗の側に設けてなる感熱スクリーンマスター。感熱発色剤をバインダーによりスクリーン紗に固定した後、得られたスクリーン紗と熱可塑性樹脂フィルムとを接着剤を用いて貼り合せて得られる。感熱発色剤を含む処理液が塗工されたスクリーン紗の該感熱発色剤の塗工面に熱可塑性樹脂フィルムを積層して、感熱発色剤に含まれるバインダーにより、熱可塑性樹脂フィルムとスクリーン紗とを貼り合せるとともに感熱発色剤をスクリーン紗に固定してもよい。【選択図】なし