Process for spin-dyeing of acid-modified polymers of acrylonitri

Details Process for spin-dyeing of acid-modified polymers of acrylonitri Process for spin-dyeing of acid-modified polymers of acrylonitri

1983-10-04

1985-12-10

Henderson, Christopher A.

Bleaching and dyeing; fluid treatment and chemical modification

Gelled fiber-dyeing process or product

8489, 8494, 8638, 8639, 8654, 8655, D06P 700, D06P 370

Patent

active

045577323

ABSTRACT:
Improvement of a process for spin-dyeing acid-modified polymers or copolymers of acrylonitrile in which cationic quaternary dyestuffs are added to the spinning mass and spun according to the wet-spinning procedure. The improvement is characterized by using dyestuffs characterized by a migration factor M of 20 or less than 20, by a combination index K of less than 2.5 and a cation weight of more than 310. Migration factor M and combination index K are known values in the dyestuff field or can be determined. The dyestuff to be used according to the invention can belong to the most different classes of dyestuffs; they fix rapidly on the polymer, and thus they do not color, or color only to a minor extent, the coagulation, stretching and washing baths although they are soluble in water and aqueous solutions of these baths. The fibers and filaments obtained by the process of the invention have outstanding fastnesses to wet processing and, owing to the absence of dyestuff aggregates at the surface of the fiber such as occur when spin-dyeing with pigments, very good fastnesses to dry and wet rubbing. The fibers are intense, absolutely transparent and free from specks.

REFERENCES:
patent: 2863875 (1958-12-01), Bienert et al.
patent: 3095606 (1963-07-01), Scott
patent: 3148935 (1964-09-01), Pfitzner et al.
patent: 3232904 (1966-02-01), Seibert et al.
patent: 3254046 (1966-05-01), Mazzolini
patent: 3271383 (1966-09-01), Yamaya
patent: 3673182 (1972-06-01), Brack et al.
patent: 3770727 (1973-11-01), Brack et al.
patent: 3786047 (1974-01-01), Kuhlthau
patent: 3860587 (1975-01-01), Tanaka
patent: 3944386 (1976-03-01), Wilkinson
patent: 3996192 (1976-12-01), Haenke et al.
patent: 4013406 (1977-03-01), Reinehr
patent: 4020037 (1977-04-01), Haenke et al.
patent: 4039539 (1977-08-01), Kuehlthare et al.
patent: 4100131 (1978-07-01), Manier et al.

Affiliated with

Also associated with

Rating

Process for spin-dyeing of acid-modified polymers of acrylonitri does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for spin-dyeing of acid-modified polymers of acrylonitri, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for spin-dyeing of acid-modified polymers of acrylonitri will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-56921