Spray dried base beads and detergent compositions

Details Spray dried base beads and detergent compositions Spray dried base beads and detergent compositions

C - Chemistry, Metallurgy

11

D

134/3.72

C11D 1/14 (2006.01) C11D 3/12 (2006.01) C11D 11/02 (2006.01)

Patent

CA 1174935

SPRAY DRIED BASE BEADS AND DETERGENT COMPOSITIONS ABSTRACT OF THE DISCLOSURE: Free flowing, spray dried beads which are useful as a detergent or for the manufacture of a particulate built synthetic nonionic organic detergent composition include water softening aluminosilicate (such as a zeolite), bentonite and water soluble builder, and may also include water soluble synthetic organic detergent and a small proportion of water soluble silicate, although such silicate is preferably omitted. The beads can be made to be of a bulk density within a broad range, and the bulk density may be varied by control of the bead formula and by modification of spray drying conditions. The base beads and detergent compositions formulated with them are of reduced alumino- silicate deposition characteristics, due to the presence of bentonite and the absence of or presence of only a low content of water soluble silicate, with the bead composition being main- tained within given ranges. The moisture content of the beads will be such as to maintain at least 2% and preferably 3% or 4%, or more of moisture in the bentonite so that its normal swelling power is retained, because the swelling of the bentonite is considered to be important in dispersing the beads in wash water and also, even more importantly, in helping to prevent alumino- silicate agglomeration and objectionable deposition thereof on materials washed, and in helping to break up any minor propor- tion of such agglomerates which might be formed.

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