Compositions – Compositions containing a single chemical reactant or plural... – Organic reactant
Patent
1989-01-23
1991-03-26
Lieberman, Paul
Compositions
Compositions containing a single chemical reactant or plural...
Organic reactant
8137, 134 30, 252173, 25218821, 252550, 252DIG19, C11D 309, B08B 304, D06L 310, D06L 316
Patent
active
050026844
ABSTRACT:
Solutions and method for the solubilizing and removal of dyes, synthetic red dyes in particular, are disclosed. The solutions consist of an aqueous mixture containing as essential ingredients (1) a detergent, preferably anionic, (2) a sulfite or bisulfite, (3) a lower alcohol and (4) ammonia or an amine. The combined ingredients cooperate to chemically alter the dye chromophore causing it to become soluble. The dye is removed by placing the solution on fibers stained with the dye for a time sufficient to allow the dye to be made soluble and the solution is then removed by either suction or absorption. Some dyes require treatment of the fiber with a solution followed by the application of moist heat through an absorbent material to assist in solubilizing and transferring the dye to the absorbent material. Particularly preferred are solutions consisting of 0.1-6% w. of a lauryl sulfate detergent salt, 5-15% w. of a sulfite or bisulfite, 20-40% w. of ethanol or methanol or a mixture thereof, and 2-10% w. of ammonia or a low alkyl or alkanol amine.
REFERENCES:
patent: 3741901 (1973-06-01), Ziffer
patent: 3919101 (1975-11-01), Anstett et al.
patent: 4227881 (1980-10-01), Fono
patent: 4268406 (1981-05-01), O'Brien et al.
patent: 4552692 (1985-11-01), Gillespie
patent: 4652389 (1987-03-01), Moll
patent: 4678595 (1987-07-01), Malik et al.
"Spotting", Judson C. Randlett & William J. Nicklaw, 1956 (National Inst. of Drycleaning, Inc., Silver Spring, Md.), pp. 73, 79, 83, 147-148 & 200-201.
Beck Boyd R.
Harris Robert D.
Beadles-Hay A.
Harris Research Inc.
Lieberman Paul
LandOfFree
Composition and method for removal of stains from fibers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Composition and method for removal of stains from fibers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Composition and method for removal of stains from fibers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-615576