| 摘要 |
<p>SOIL RELEASE PROMOTING LIQUID DETERGENT A soil release promoting liquid detergent comprises a detersive proportion of a synthetic organic nonionic detergent or a mixture of such nonionic and synthetic organic anionic detergents and a soil release promoting proportion of a particular type of soil release promoting copolymer of polyethylene terephthalate and polyoxyethylene terephthalate in an aqueous medium which contains no more than 2% of water soluble ionizable salt (which is not an anionic surface active agent) or equivalent ionizable species, and which is at a pH in the range of 6 to 9. The described liquid detergent, which is preferably clear or translucent, may preferably include a proportion of enzyme sufficient to enzymatically hydrolyze soils on fabrics during washing, and a stabilizing proportion of stabilizer for the enzymes. Also preferably, there may be present a fabric softening proportion of a quaternary ammonium salt fabric softener. Such a detergent is found to be non-separating and of improved stability on storage, with substantial retention of soil release promoting characteristics, so that laundry containing polyester materials is made effectively soil releasing after washing with the liquid detergent.</p> |
