Described are compositions and methods relating to the removal of oily stains from fabrics and other surfaces using a lipase in combination with a selected surfactant to mediate the release of fatty acids generated by the lipase. The compositions and methods have application in, e.g., laundry cleaning and dishwashing.

Methods of cleaning equipment such as hand tools dirtied by bituminous mixture. A biodiesel emulsion comprising biodiesel, water and emulsifier(s), is applied to the surface of the equipment for a period of time (e.g., at least about 15 minutes) and optionally agitated. The biodiesel emulsion produces cleaning properties comparable to straight biodiesel, at a cost reduction, due to the replacement of biodiesel with water.

Provided is a method of producing a three-dimensional object, including: a first step of placing and laminating a water-insoluble structural material and a support material each containing a water-soluble material and a fiber material to form a material layer; and a second step of bringing a portion of the shaped object including the support material into contact with a liquid containing water and a bipolar surfactant to remove the portion.

Compositions containing a quaternary ammonium compound (QAC) active to provide an antimicrobial property, a quaternized phospholipid which provides a reduction in potential irritancy of other ingredients as well as foaming and cleansing properties, a second non-ionic or amphoteric surfactant (such as an alkyl amine oxide or linear alkyl polyglucoside) to provide increased foam volume and cleansing properties, a non-ionic or quaternized polymer (such as hydroxypropylmethylcellulose or hydroxypropyl guar hydroxypropyl trimonium chloride) which can provide thickening, foam structure and improved after-feel properties are described.