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TVAETTMEDELKOMPOSITION INNEHAOLLANDE Zeolite SOM TVAETTEFFEKTIVERINGSMEDEL.
TVAETTMEDELKOMPOSITION INNEHAOLLANDE Zeolite SOM TVAETTEFFEKTIVERINGSMEDEL.
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机译:包含沸石的洗涤剂组合物是一种高效洗涤剂。
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摘要
Type A, especially type 4A zeolites are well adapted as detergent builders, said zeolites comprising (i) primary particles having a mean particle diameter ranging from 0.1 to 10 mu , (ii) a cation exchange capacity in excess of about 100 mg CaCO3/g of anhydrous material, and (iii) a rate constant, relative to the surface area of the zeolite per liter of wash solution, in excess of about 0.15 s-1 lm-2. The builders are prepared by first determining the value of the rate constant for a given zeolite sample. Since a higher rate constant value corresponds to a lower degree of salt incrustation on fabrics, only those zeolites having a value above the predetermined minimum will be incorporated into detergents. Thus, zeolites otherwise appearing identical can be differentiated, with only those not causing high levels of incrustation being selected.
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