Laundry detergents and their use for cold-water cleaning are disclosed. The detergents comprise a lipase and a mid-chain headgroup surfactant or an alkylene-bridged surfactant. The mid-chain headgroup surfactants have a C14-C30 alkyl chain and a polar group bonded to a central zone carbon of the C14-C30 alkyl chain. The alkylene-bridged surfactants comprise a C12-C18 alkyl chain, a polar group, and a C1-C2 alkylene group bonded to the polar group and a central zone carbon of the C12-C18 alkyl chain. Surprisingly, when combined with lipases, detergents formulated with the mid-chain headgroup or alkylene-bridged surfactants effectively liquefy greasy soils at low temperature and provide outstanding cold-water performance in removing greasy stains such as bacon grease, butter, cooked beef fat, or beef tallow from soiled articles.
本发明公开了用于冷
水清洗的洗衣剂及其用途。洗涤剂由
脂肪酶和中链头
表面活性剂或亚烷基桥接
表面活性剂组成。中链头
表面活性剂具有 C14-C30 烷基链和与 C14-C30 烷基链中心区
碳键合的极性基团。
烯键
表面活性剂包括一个 C12-C18 烷基链、一个极性基团以及一个与极性基团和 C12-C18 烷基链中心区
碳键合的 C1-C2
烯基。令人惊奇的是,当与
脂肪酶结合使用时,用中链头基团或亚烷基桥接
表面活性剂配制的洗涤剂可在低温下有效地液化油脂污垢,并在冷
水条件下具有出色的去污性能,可去除脏污物品上的油脂污渍,如培根油、黄油、熟牛肉
脂肪或牛脂。