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    • 9. 发明授权
    • Laundry pre-treatment or pre-spotting compositions used to improve aqueous laundry processing
    • 用于改善水性衣物处理的洗衣预处理或预先筛选的组合物
    • US06204233B1
    • 2001-03-20
    • US09167601
    • 1998-10-07
    • Kim R. SmithCarrie L. ArmstrongPaul J. MattiaMark LevittRobert D. P. HeiWendy M. Wiseth
    • Kim R. SmithCarrie L. ArmstrongPaul J. MattiaMark LevittRobert D. P. HeiWendy M. Wiseth
    • C11D172
    • C11D1/72C11D1/721C11D1/722C11D1/8255
    • The ability of aqueous laundry compositions to remove organic hydrophobic soils, such as oily, greasy or particulate soils, from a laundry item is substantially improved by pre-spotting or pre-treating such a soiled item with a treatment composition having a surfactant comprising a unique hydrophillic ethoxylate surfactant with less than two moles of ethylene oxide or a or blend of at least two surfactant compositions with a blended HLB value of about 7-12. The blend of surfactants with this HLB value penetrates soils and renders the soil more easily removed from the item using aqueous laundry detergent. The treatment composition can be used in a liquid or solid form and can be applied to individual laundry items in the form of a solid stick or liquid spray prior to introduction to the laundry machine. Laundry items can also be contacted in the laundry machine with the pre-spot or pre-treatment composition in the form of an aqueous presoak, preflush, prewash, or other step prior to the cleaning step. A preferred laundry machine comprises an institutional tunnel washer.
    • 通过用具有表面活性剂的处理组合物预先点样或预处理这样的污染物品,水性洗衣组合物从衣物中除去有机疏水性污垢(例如油性,油脂或颗粒状污垢)的能力大大提高, 具有小于2摩尔环氧乙烷的亲水乙氧基化物表面活性剂或至少两种混合HLB值为约7-12的表面活性剂组合物或其混合物。 具有该HLB值的表面活性剂的混合物渗透土壤,并且使用水性衣物洗涤剂更容易地从物品中去除土壤。 处理组合物可以以液体或固体形式使用,并且可以在引入洗衣机之前以固体棒或液体喷雾的形式施用于单独的衣物。 也可以在清洁步骤之前,将洗衣机与预浸渍,预洗,预洗或其它步骤的形式在洗衣机中接触预处理组合物或预处理组合物。 优选的洗衣机包括机构式隧道洗衣机。