Abstract: The present invention relates to an emulsion for use as a lubricant in the production of threads, containing: a) 30 to 90 percent by weight of a mineral oil with a viscosity of at least 8.5 mm2/s at 100° C. and b) 11 to 60 percent by weight of an emulsifier selected from sorbitan monoesters, derivatives of sorbitan monoesters, sorbitan diesters, derivatives of sorbitan diesters, sorbitan triesters, derivatives of sorbitan triesters, polyglyerol esters, derivatives of polyglyerol esters, polyricinoleate, derivatives of polyricinoleate, and mixtures thereof. The threads are used for the production of filters for tobacco products.