Low-fogging finish treatment for upholstery leather, and method
AssigneeBoehme Filatex, Inc.
InventorGeorge P. Sembert
Life of this patent
Estimating the term…
Abstract
A method of imparting low fogging characteristics to tanned leather, which includes the step of treating the leather in an aqueous emulsion including an effective quantity of an oil having less than 3 percent of fatty acid components of less than C-16, the oil having been first distilled to remove low molecular weight trace elements. The oil may be by way of example soybean oil, lard oil, safflower oil, or sunflower oil.
Claims6
A method of preparing a fatliquor for imparting low fogging characteristics to tanned leather, comprising the steps of:
- (a) selecting an oil having less than 3 percent of fatty acid components of less than C-16 from the group consisting of soybean oil, lard oil, safflower oil and sunflower oil;
- (b) distilling said oil to remove volatile elements which cause fogging;
- (c) bisulfating or bisulfiting the distilled oil to facilitate emulsification;
- and
- (d) emulsifying the bisulfated or bisulfited oil in an aqueous emulsion.
A method of imparting low fogging characteristics to tanned leather, comprising the steps of
- (a) selecting an oil having less than 3 percent of fatty acid components of less than C-16 from the group consisting of soybean oil, lard oil, safflower oil and sunflower oil;
- (b) distilling said oil to remove volatile elements which cause fogging;
- (c) bisulfating or bisulfiting the distilled oil to facilitate emulsification;
- (d) emulsifying the bisulfated or bisulfited oil in an aqueous emulsion;
- and
- (e) treating said tanned leather in said aqueous emulsion.
A fatliquoring composition for treating tanned leather to impart low-fogging characteristics to the leather, consisting essentially of:
- (a) an oxidized, bisulfated or bisulfited soybean oil, lard oil, safflower oil or sunflower oil having less than 3 percent of fatty acid components of less than C-16;
- (b) wherein said oil has been distilled to remove volatile elements which cause fogging.
Dependencies are inferred from the claim text.