LAMINATED PLATE DIFFERENT IN COLOR AND HARDNESS CONTAINING WASTE MATERIAL AS MAIN MATERIAL

• Main Authors: KASAHARA TOMOYUKI, YAMAZAKI SUSUMU, OSHIKI MOTOO
• Format: Patent
• Language: English
• Published: 19.11.2002
• Edition: 7
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MAKING GRANULES OR PREFORMS; MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUTORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTINGOF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; 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; WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL

PROBLEM TO BE SOLVED: To produce multi-layer woody plates different in color and hardness having excellent dimensional stability and good forming properties and to provide the plates as engraving plate products. SOLUTION: A material in which a colored inorganic pigment is added/mixed into a simple substance or a composite material of vegetable fiber waste such as crushed used paper, wood powder, Manila hemp, and bagasse, crushed desulfurized waste rubber, and a soft resin are mixed, kneaded, extruded, and molded by a plurality of extruders to produce the multi-layer woody plates different in color and hardness. The plates are cut in a prescribed size to manufacture engraving plates.