Process for preparing reduced odor and improved brightness indiv

Details Process for preparing reduced odor and improved brightness indiv Process for preparing reduced odor and improved brightness indiv

1995-06-15

1996-10-08

Willis, Jr., Prince

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

Cellulose fibers

81161, 8107, 81081, 8109, 8110, 8111, 811569, 162 9, 1621576, D06M 13192, D21H 1120

Patent

active

055627404

ABSTRACT:
Disclosed is a process for making reduced odor individualized, crosslinked fibers which includes the steps of providing cellulosic fibers, contacting the fibers with a solution containing a C.sub.2 -C.sub.9 polycarboxylic acid crosslinking agent, mechanically separating the fibers into substantially individual form, drying the fibers and reacting the crosslinking agent with the individualized fibers to form intrafiber crosslink bonds. The individualized cellulosic fibers are then contacted with a strong alkaline solution and strong oxidizing agent to reduce the odor and increase the brightness. Preferably, the crosslinking agent is citric acid, and preferably, between about 1.0 weight % and about 12.0 weight % of the crosslinking agent reacts to form the intrafiber crosslink bonds. Preferably, the alkaline solution is an aqueous solution of sodium hydroxide, and preferably, about 0.09 weight % of the sodium hydroxide, on a dry fiber weight basis, is applied to the crosslinked fibers. Preferably, the oxidizing agent is hydrogen peroxide, and preferably, about 0.04 weight % of the hydrogen peroxide, on a dry fiber weight basis, is applied to the crosslinked fiber. The reduced odor individualized, crosslinked fibers are useful in a variety of absorbent structure applications.

REFERENCES:
patent: 2872280 (1959-02-01), Kindron
patent: 3526048 (1970-09-01), Rowland et al.
patent: 4298426 (1981-11-01), Torregrossa et al.
patent: 4303470 (1981-12-01), Meredith et al.
patent: 4409384 (1983-10-01), Lindsey
patent: 4624743 (1986-11-01), Gess
patent: 4731161 (1988-03-01), Ehrhardt
patent: 4734161 (1988-03-01), Dubreux
patent: 4804440 (1989-02-01), Liebergott et al.
patent: 4820307 (1989-04-01), Welch et al.
patent: 4889595 (1989-12-01), Herron et al.
patent: 5137537 (1992-08-01), Herron et al.
patent: 5183707 (1993-02-01), Herron et al.
patent: 5190563 (1993-03-01), Herron et al.
patent: 5199953 (1993-04-01), Fung et al.
patent: 5296100 (1994-03-01), Devic
patent: 5366591 (1994-11-01), Jewell

Affiliated with

Also associated with

Rating

Process for preparing reduced odor and improved brightness indiv 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 reduced odor and improved brightness indiv, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing reduced odor and improved brightness indiv will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-54534