CORE MATERIAL FOR VACUUM HEAT INSULATING MATERIAL, VACUUM HEAT INSULATING MATERIAL, AND MANUFACTURING METHOD FOR THEM

摘要

PROBLEM TO BE SOLVED: To provide a core material for a vacuum heat insulating material, having improved heat insulating performance while exceeding a conventional heat insulating performance improving limit, and to provide the vacuum heat insulating material equipped therewith and manufacturing methods for them.

SOLUTION: The core material for the vacuum heat insulating material is constructed by laminating a plurality of non-woven cloths 110. Each of the non-woven cloths includes at least a plurality of glass fibers 111, 112 manufactured in a continuous filament method. In each of the non-woven cloths 110, most parts of the glass fibers 111, 112 out of the plurality of glass fibers extend in a direction almost parallel to the surface of the non-woven cloth 110.

COPYRIGHT: (C)2009,JPO&INPIT