Bleaching and dyeing; fluid treatment and chemical modification – Bleaching
Patent
1985-12-31
1987-12-15
Barr, Josephine L.
Bleaching and dyeing; fluid treatment and chemical modification
Bleaching
81081, 8137, 252 97, 252 99, 252102, 252174, 25218625, 25218634, 2521872, D06L 300, D06L 306, C11D 942, A62D 300
Patent
active
047130792
ABSTRACT:
Hard spherical bleaching particles are disclosed the core of each particle comprising a dihalohydantoin bleach active, a buffer salt and a binder which mixture when dissolved in water provides a pH of less than 9.5. The core may be encapsulated within an outer coating. Fabric pinhole damage is substantially reduced when bleaching with the foregoing particles.
Chun Kil Whan
Kyllmann Clemens A.
Barr Josephine L.
Farrell James J.
Honig Milton L.
Lever Brothers Company
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