Insulation mat e.g. for thermal and noise insulation, comprises random web formed from natural fibres, hemp in particular, blended with binding fibers

摘要

An insulation mat comprises natural fibres that are cut to staple fibres and blended with binding fibres. The random web (2) is compressed into a mat, and hemp chaff (3) is added before or during web formation. An insulation mat comprises natural fibres that are cut to staple fibres and blended with binding fibres. The random web (2) is compressed into a mat, and hemp chaff (3) is added before or during web formation. In order to improve the sound insulation properties of the mat, one or both surfaces can be brought into a structured shape through hot pressing. The surface would then have alternating indentations and protuberances. The mat can be equipped with surface layers (4), which can be applied during hot pressing.