E.i. Dupont De Nemours and Company

Andre Capt

Yves Bader

Hamid M Ghorashi

Thomas Dotsch

Hamid Moayed Ghorashi

The present invention relates to a heat, flame, and electric arc resistant fabric () for use as single or outer layer of protective garments. The fabric () of the invention comprises at least two separate single plies which are assembled together at predefined positions so as to build pockets (). The fabric () of the invention is made of materials independently chosen from the group consisting of aramid fibers and filaments, polybenzimidazol fibers and filaments, polyamidimid fibers and filaments, poly(paraphephenylene benzobisaxazole) fibers and filaments, phenol-formaldehyde fibers and filaments, melamine fibers and filaments, natural fibers and filaments, synthetic fibers and filaments, artificial fibers and filaments, glass fibers and filaments, carbon fibers and filaments, metal fibers and filaments, and composites thereof. Due to its peculiar structure, the fabric () according to the present invention can have a specific weight which is considerably lower than that of known fabrics having comparable mechanical and thermal properties.

Fabric for protective garments

This invention relates to heat and flame resistant single ply fabric for use as a single or outer layer of a protective garment for a wearer. The fabric comprises at least one warp system and at least two weft systems. The warp system comprises a blend of 60 to 90 wt-% poly-m-phenylenisophtalamid (meta-aramid) and 10 to 40 wt-% poly-p-phenylenterephtalamid (para-aramid). The first of the at least two weft systems comprises a blend of 85 to 95 wt-% meta-aramid and 5 to 15 wt-% para-aramid. The second of the at least two weft systems essentially comprises para-aramid.

The visual appearance of pigmented or dyed para-aramid fabric generally present in an article of clothing is restored by contacting the fabric with an aqueous dye solution or dispersion to dye abraded fibrils attached to the aramid filaments in the fabric. Use of a conventional washing machine is suitable in the fabric contact with the dye.

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Gland, Switzerland

Andre Capt