Presoak detergent with optical brightener

Details Presoak detergent with optical brightener Presoak detergent with optical brightener

1997-12-30

2000-08-08

Diamond, Alan

Bleaching and dyeing; fluid treatment and chemical modification

Cleaning or laundering

Removing formation impurities from artifical fiber

510284, 510405, 510301, 510325, 510324, 510513, 510535, 510537, 510421, 510424, 510394, 134 26, 134 29, 134 42, D06B 100, D06L 116, C11D 342

Patent

active

060995890

ABSTRACT:
In fabric laundry procedures, commercial and household laundry detergent compositions commonly contain an optical brightener composition. Brighteners adjust the optical properties of the fabric in such a way that the fabric appears to be white even after repeated washings. Often white fabrics can yellow during use. Fluorescent optical brighteners having an optical blue aspect, mask the yellowing of the fabric. Common laundry detergents fail to have sufficient brightening capacity to brighten heavily soiled white cotton items used in household, commercial, institutional or fast-food food surface. A process for improving the whiteness of soiled white cotton, preferably terry cloth, items involves contacting the soiled white fabric item with a presoak containing an effective proportion of a fluorescent optical brightener composition, removing the item from the presoak and separating the presoak composition from the fabric item producing an extracted item. The extracted item is then laundered in a laundry detergent composition containing a brightener. The resulting white fabric items have substantially improved whiteness when compared to similarly soiled items laundered in conventional processes.

REFERENCES:
patent: 3413331 (1968-11-01), Beiser et al.
patent: 3468805 (1969-09-01), Grifo et al.
patent: 3748093 (1973-07-01), Gangwisch et al.
patent: 3755407 (1973-08-01), Wilkes
patent: 3775349 (1973-11-01), Tuvell et al.
patent: 3998750 (1976-12-01), Payne et al.
patent: 4079020 (1978-03-01), Mills et al.
patent: 4092272 (1978-05-01), Nishimura et al.
patent: 4133779 (1979-01-01), Hellyer et al.
patent: 4140641 (1979-02-01), Ramachandran
patent: 4146496 (1979-03-01), Gray
patent: 4233167 (1980-11-01), Sramek
patent: 4316824 (1982-02-01), Pancheri
patent: 4690305 (1987-09-01), Copeland
patent: 4790856 (1988-12-01), Wixon
patent: 5152921 (1992-10-01), Weber et al.
patent: 5279772 (1994-01-01), Eckhardt et al.
patent: 5332528 (1994-07-01), Pan et al.
patent: 5454982 (1995-10-01), Murch et al.
patent: 5483339 (1996-01-01), Van Aken et al.
Derwent abstract 09400A/05 for JP 52-152,405, Dec. 1977.

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