公开(公告)号：US20010014658A1

公开(公告)日：2001-08-16

申请号：US09813332

申请日：2001-03-20

Applicant: Ecolab Inc.

Inventor： Kim R. Smith ,  Carrie L. Armstrong ,  Paul J. Mattia ,  Mark Levitt ,  Robert D.P. Hei ,  Wendy M. Wiseth

IPC: C11D017/00

CPC classification number: C11D1/72 ,  C11D1/721 ,  C11D1/722 ,  C11D1/8255

Abstract: 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.