INORGANIC-FIBER MADE HEAT INSULATION MATERIAL AND METHOD OF MANUFACTURING IT

摘要

PROBLEM TO BE SOLVED: To provide an inorganic-fiber made heat insulating material which radiates less formaldehyde and has the same water resistance as the conventional heat insulation material has and a method of manufacturing the material. SOLUTION: The inorganic-fiber made heat insulation material is obtained in such a way that, after felt prepared by adding a binder containing a formaldehyde-based thermosetting resin as a main ingredient to inorganic fibers and forming the fibers in a mat-like shape is hardened by heating, a formaldehyde scavenger which is a material that can set the formaldehyde through a reaction is added to the hardened felt.