Textile materials containing aramid fibers and dyed polyphenylene sulfide fibers
AssigneeMilliken & Company
InventorsShulong Li, Andrew D. Child
Life of this patent
Estimating the term…
Abstract
A textile material comprises a plurality of yarns, the yarns containing an intimate blend of dyed polyphenylene sulfide fibers and aramid fibers. The dyed polyphenylene sulfide fibers comprising a disperse dye that is distributed substantially evenly across the cross-sectional area of the fibers. A method for dyeing textile materials containing polyphenylene sulfide fibers comprises the steps of (a) providing a plurality of polyphenylene sulfide fibers and aramid fibers; (b) spinning the blend of fibers into a plurality of yarns; (c) forming the yarns into a textile material; (d) subjecting the textile material to a polyphenylene sulfide dyeing process.
Claims23
A textile material comprising a plurality of yarns, wherein at least a portion of the yarns comprise an intimate blend of dyed polyphenylene sulfide fibers and aramid fibers, wherein the polyphenylene sulfide fibers have a cross-sectional area, the polyphenylene sulfide fibers comprise a disperse dye that is distributed substantially evenly across the cross-sectional area of the fibers, and the disperse dye is selected from the group consisting of disperse dyes having a molar mass of about 350 g/mol or more, disperse dyes comprising a nitro group, and mixtures thereof.
A method for dyeing textile materials containing polyphenylene sulfide fibers, the method comprising the steps of:
- (a) providing a plurality of polyphenylene sulfide fibers and aramid fibers;
- (b) spinning the blend of fibers into a plurality of yarns;
- (c) forming the yarns into a textile material;
- (d) subjecting the textile material to a polyphenylene sulfide dyeing process comprising:
- (i) providing a dye liquor comprising a liquid medium and a disperse dye selected from the group consisting of disperse dyes having a molar mass of about 350 g/mol or more, disperse dyes comprising a nitro group, and mixtures thereof;
- (ii) applying the dye liquor to the textile material;
- (iii) heating the textile material under ambient atmosphere to a temperature sufficient to evaporate substantially all of the liquid medium from the textile material;
- and
- (iv) heating the textile material under ambient atmosphere to a temperature of about 180° C. or more to fix the disperse dye to the polyphenylene sulfide fibers;
A textile material comprising a plurality of yarns, wherein at least a portion of the yarns comprise an intimate blend of dyed polyphenylene sulfide fibers and polyamide-imide fibers, wherein the polyphenylene sulfide fibers have a cross-sectional area, the polyphenylene sulfide fibers comprise a disperse dye that is distributed substantially evenly across the cross-sectional area of the fibers, and the disperse dye is selected from the group consisting of disperse dyes having a molar mass of about 350 g/mol or more, disperse dyes comprising a nitro group, and mixtures thereof.
Dependencies are inferred from the claim text.