Method for making a textile covering and textile covering

摘要

A textile coating is made from a web of fibers including a first area and a second area. The first area is a cohesion area where the fibers of the web are integrated into a tight entanglement holding the fibers and located on only a portion of the thickness of the web. A method for making the textile coating includes: applying an alternating electric field to the web having at least one face bearing a heat-meltable powdery binder, thereby introducing said powdery binder into the web, so as to concentrate the binder at the first area, then melting the binder by supplying heat, and leaving the binder to cure or causing it to cure.

主权项

1. A method for making a textile covering from a needle punched web of fibers consisting of, in sequence along a thickness direction of the needle punched web, a rear face, a first area, a second area and a front face, the first area being a cohesion area in which the fibers of the needle punched web are intertwined into a tight entanglement holding said fibers and the first area extending from the rear face covers only a portion of a thickness of the needle punched web, the second area comprising loops of the fibers of the needle punched web extending over another portion of the thickness of the needle punched web, above said first area, until said front face, density of the fibers in the first area being higher than in the second area, comprising stages in which:
a) by applying an alternating electric field to the needle punched web with at least one of the front face and the rear face of the web bearing a heat-meltable powdery binder, the powdery binder is introduced into the needle punched web of fibers, so as to concentrate said binder at the first area, and leave the second area containing virtually no powdery binder, then c) the binder is caused to melt by supplying heat, then d) the binder is left to cure or caused to cure.