MANUFACTURING METHOD OF RAW MATERIAL FOR PAPERMAKING, OBTAINED RAW MATERIAL FOR PAPERMAKING, AND HEAT RESISTANCE ELECTRICAL INSULATION SHEET MATERIAL USING THE RAW MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of a raw material for papermaking capable of recycling a calendar treated aramid paper as a raw material for papermaking without using a drug solution.SOLUTION: There is provided a manufacturing method of a raw material for papermaking including cracking aramid paper formed from a hybrid formed from aromatic polyamide, a short fiber or a mixture thereof and manufactured via a calendar processing by high pressure jet treatment to constituent materials of the aramid paper.