METHOD OF DYEING AROMATIC POLYAMIDE FIBERS WITH WATER-SOLUBLE DYES

• Main Author: GHORASHI, HAMID, MOAYED
• Format: Patent
• Language: English; French; German
• Published: 27.12.1996
• Edition: 6
• Subjects: DYEING LEATHER, FURS, OR SOLID MACROMOLECULAR SUBSTANCES INANY FORM; DYEING OR PRINTING TEXTILES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; LAUNDERING; TEXTILES; TREATMENT OF TEXTILES OR THE LIKE

Poly(p-phenylene terephthalamide) (PPD-T) fibers which have been dried are dyed with cationic dyes, or with disperse or acid dyes, by heating the fibers under a high pressure from 29 to 108 psi and at a temperature from 130 DEG to 180 DEG C.