Coating processes – Rumbling or tumbling
Patent
1974-06-10
1979-01-30
Lusignan, Michael R.
Coating processes
Rumbling or tumbling
118 76, 118423, 427398R, 427422, 427316, B05D 302, B05D 312
Patent
active
041373456
ABSTRACT:
An article for conditioning fabrics by contacting them and applying conditioning material to the fabric surfaces is made by raising the temperature of a conditioning composition including said conditioning material until it forms a melt, in which state it is fluid and readily applicable to a base for the conditioning article, and applying said fluid composition to a base article so that a surface thereof is coated with the composition. Following application, the composition is cooled sufficiently to convert it to the solid state, in which it forms an adherent coating on the base.
The process is especially useful in coating form retaining bases with a layer of a conditioning material such as a fabric softener, which is designed to be rubbed off onto tumbling damp laundry in an automatic laundry dryer, while the dryer is being heated. The method of application lends itself to speedy and commercially satisfactory production techniques, in which the homogeneity of the conditioning composition is maintained, as is the uniformity of the coating, at controllable application rates. Problems associated with flammability of solvents, using evaporation processes to remove solvent materials and the recovery of solvents from the conditioning composition are also obviated.
REFERENCES:
patent: 545614 (1895-09-01), Roach et al.
patent: 1692822 (1928-11-01), Eckstein
patent: 2053270 (1936-09-01), Dreyfus et al.
patent: 2053305 (1936-09-01), Whitehead
patent: 3686025 (1972-08-01), Morton
Blumenkopf Norman
Colgate - Palmolive Company
Grill Murray M.
Lusignan Michael R.
Sylvester Herbert S.
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