PROCESS FOR PRODUCING RAW MATERIAL FOR PAPERMAKING, OBTAINED RAW MATERIAL FOR PAPERMAKING, AND HEAT-RESISTANT ELECTRICAL INSULATING SHEET MATERIAL OBTAINED USING SAID RAW MATERIAL

• Main Authors: FUJIMORI TATSUSHI, KONDO CHIHIRO, NARUSE SHINJI
• Format: Patent
• Language: English; French; Japanese
• Published: 17.07.2014
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; IMPREGNATING OR COATING OF PAPER; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TEXTILES; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G

A process for producing a raw material for papermaking, the process comprising subjecting aramid paper to a high-pressure jetting treatment to disintegrate the aramid paper into constituent materials, the aramid paper having been formed from fibrids, short fibers, or a mixture thereof which are formed from an aromatic polyamide and having been produced via calendering. According to this production process, aramid paper which has been calendered can be reutilized as a raw material for papermaking without requiring the use of a liquid chemical, etc. L'invention concerne un procédé pour la production d'une matière première pour la fabrication de papier, le procédé comprenant la soumission d'un papier aramide à un traitement de pulvérisation à pression élevée pour désintégrer le papier aramide en matières de constituant, le papier aramide ayant été formé à partir de fibrides, de fibres courtes ou d'un mélange de celles-ci qui sont formés à partir d'un polyamide aromatique et ayant été produits par calandrage. Selon ce procédé de production, le papier aramide qui a été calandré peut être réutilisé comme matière première pour la fabrication de papier sans nécessiter l'utilisation d'un produit chimique liquide, etc.