Manufacturing Technologies of Flexible Heat-Insulating Materials: Review.

The main directions of application of flexible heat-insulating materials and the customary technologies for producing non-woven materials are considered. Different ways of fastening fibers are analyzed — chemical, thermal, and mechanical, which in turn include needle-punched, knitting-stitching, and hydro-jet methods, used in the production of flexible fibrous thermal insulation. Anumber of patents developing methods for obtaining non-woven materials are presented. [ABSTRACT FROM AUTHOR]