Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1996-11-21
1997-11-11
Caldarola, Glenn
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502321, 502322, 502330, C11D 162
Patent
active
056863764
ABSTRACT:
Rinsing dyed or white fabrics in a chelator-containing rinse bath restores color and brightness. Rinse added compositions comprising chelators such as diethylenetriaminepentaacetate or ethylenediamine disuccinate are used to restore the appearance of colored and white fabrics whose drab appearance has been caused by interactions with metal ions, especially copper and nickel. Compositions comprising the chelators in combination with fabric care auxiliaries such as fabric softeners, cellulase enzymes and chlorine scavengers are provided.
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AATCC Test Method--161-1992 "Chelating Agents: Disperse Dye Shade Change Caused by Metals; Control", AATCC Technical Manual (1993), pp. 296-298.
Baker Ellen Schmidt
Masschelein Axel
Rusche John Robert
Aylor Robert B.
Caldarola Glenn
Ghyka Alexander G.
The Procter & Gamble & Company
Yetter Jerry J.
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