Stain removal process using combination of low and high speed spin
First Claim
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1. A method for laundering a textile wash load in an automatic washing apparatus comprising the steps of:
- a. loading a textile wash load into a wash basket of the automatic washing apparatus wherein the wash basket is surrounded by a stationary wash tub;
b. introducing a volume of chemical solution into the wash tub;
c. rotating the washer basked relative to the stationary wash tub at a low spin speed;
d. applying at least a portion of the concentrated chemical solution to the textile wash load while the wash basket in rotating at a low spin speed; and
e. rotating the wash tub at a high spin speed.
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Abstract
An improved method for treating textiles such as clothing with a concentrated solutions in an automatic washer by alternating the speed of rotation of the automatic washer wash basket from a low spin speed to a high spin speed and applying the concentrated solution to the textiles when the wash basket is spinning at the low spin speed.
63 Citations
28 Claims
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1. A method for laundering a textile wash load in an automatic washing apparatus comprising the steps of:
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a. loading a textile wash load into a wash basket of the automatic washing apparatus wherein the wash basket is surrounded by a stationary wash tub;
b. introducing a volume of chemical solution into the wash tub;
c. rotating the washer basked relative to the stationary wash tub at a low spin speed;
d. applying at least a portion of the concentrated chemical solution to the textile wash load while the wash basket in rotating at a low spin speed; and
e. rotating the wash tub at a high spin speed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method for laundering a textile wash load in an automatic washing apparatus comprising the steps of:
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a. loading a textile wash load into a wash basket of the automatic washing apparatus wherein the wash basket is surrounded by a stationary wash tub;
b. introducing a chemical into the wash tub and introducing water into the wash tub to form a concentrated chemical solution having a measurable level;
c. rotating the wash basket relative to the stationary wash tub at speed that applies less than 1 GPa centrifugal force on the textile wash load;
d. applying at least a portion of the concentrated chemical solution to the textile wash load while the wash basket in rotating at a low spin speed;
e. halting the application of the concentrated chemical solution to the textile wash load;
f. rotating the wash basket at a spin speed that applies greater than 1 GPa centrifugal force to the textile wash load;
g. halting the rotation of the wash basket at a speed that applies greater than 1 GPa centrifugal force to the textile wash load;
h. introducing water into the wash tub and admixing the water with the concentrated chemical solution until there is a measurable level of concentrated chemical solution in the wash tub; and
i. repeating steps c-e at least once. - View Dependent Claims (24, 25, 26, 27)
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28. A method for laundering a textile wash load in a washing apparatus comprising the steps of:
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a. loading a textile wash load into a wash basket of the washing apparatus wherein the wash basket is surrounded by a stationary wash tub;
b. introducing a predetermined volume of concentrated detergent solution into the stationary wash tub without wetting the textile wash load;
c. rotating the wash basket relative to the stationary wash tub at a low spin speed for a predetermined length of time;
d. applying a volume of the concentrated detergent solution to the textile wash load while the wash basket is rotating at a low spin speed by withdrawing concentrated detergent solution from the wash tub and directing the withdrawn concentrated detergent solution into the wash basket and into contact with the textile wash load;
e. interrupting application step d and accelerating the wash basket to a high spin speed; and
f. repeating steps c-e a predetermined number of times.
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Specification