Multi-layered laundry tablet
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United States of America Patent
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Oct 26, 1999
Grant Date -
N/A
app pub date -
Aug 21, 1997
filing date -
Aug 21, 1997
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A chemical dispensing device comprising a dissolvable, multi-layered, laundry tablet for insertion in a washing machine at the initiation of the laundry washing process. The laundry tablet includes a dissolvable first or outer layer which includes an alkaline substance for raising the pH level of the wash water upon dissolving, and a dissolvable second or inner layer which includes an acidic substance for subsequently lowering or neutralizing the pH level of the wash water. The laundry tablet thus provides an effective device for automatically varying the pH level of the laundry wash water, which automatic variation is effected by the single step of depositing the tablet in the laundry wash water at the initiation of the wash cycle.
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Family
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Cited Art Landscape
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