MANUFACTURING METHOD AND MANUFACTURING DEVICE FOR LAMINATED SHEET

• Main Authors: KOBAYASHI YUKITO, YUKAWA MUTSUO, KANAI YURI, SEKINO HIROSHI, SATO TAKUYA, OKAZAKI TOSHIHIKO, HAYASHI KENICHI
• Format: Patent
• Language: English; Japanese
• Published: 30.05.2024
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a manufacturing method for a laminated sheet, which is capable of faithfully forming an uneven shape pattern including fine uneven shapes via a molding die on a laminated sheet material having a cushioning material attached to a back surface of a synthetic resin sheet.SOLUTION: There is provided a manufacturing method for a laminated sheet having a synthetic resin sheet and a cushioning material laminated in this order from a front side to a back side, and having unevenness at least on the front side. The manufacturing method comprises: a preparation step of attaching the cushioning material to the back side of the synthetic resin sheet to prepare a laminated sheet material; a softening step of softening the laminated sheet material; and a forming step of applying a vacuum to the front side of the laminated sheet material through a molding die made of a porous material to provide unevenness.SELECTED DRAWING: Figure 1 【課題】合成樹脂シートの裏面にクッション材が貼り付けられた積層シート材に微細な凹凸形状を含む凹凸形状パターンを成形型に忠実に付けることができる積層シートの製造方法を提供する。【解決手段】合成樹脂シートとクッション材とを表側から裏側へこの順で積層して含み、且つ少なくとも表側に凹凸を有する積層シートの製造方法が、前記合成樹脂シートの裏側に前記クッション材を貼り付けて、積層シート材を作製する準備工程と、前記積層シート材を軟化させる軟化工程と、前記積層シート材の表側から多孔質部材からなる成形型を介して真空吸引することによって凹凸を付与する成形工程と、を含む。【選択図】図１