Process for preparing poly (paraphenylene terephthalamide) fiber

Details Process for preparing poly (paraphenylene terephthalamide) fiber Process for preparing poly (paraphenylene terephthalamide) fiber

1989-06-09

1991-01-15

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Dye or potential dye composition, additive, treatment,...

Basic dye containing strongly basic onium or alkylene imine...

8538, 8567, 8568, 8574, 8585, 8587, 8611, 8618, 8657, 8925, C09B 4400, D06P 324

Patent

active

049850466

ABSTRACT:
There is provided by this invention a process for preparing poly(paraphenylene terephthalamide) fibers dyeable with cationic dyes. The process comprises soaking poly(paraphenylene terephthalamide) fibers in sulfuric acid, washing the fibers and dipping the acid soaked fibers or never-dried PPD-T fibers in an aqueous solution of a dye promoting species. The fibers can then be dried and subsequently dyed.

REFERENCES:
patent: 3869429 (1975-03-01), Blades
patent: 3888821 (1975-06-01), Milford, Jr.

Affiliated with

Also associated with

Rating

Process for preparing poly (paraphenylene terephthalamide) fiber 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 preparing poly (paraphenylene terephthalamide) fiber, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing poly (paraphenylene terephthalamide) fiber will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-52985