Tob. Reporter, 1992, 119-11, p. 43, ISSN.0361-5693
Production of a filter material
U.S. Patent 5,141,006 assigned to Eastman Kodak Company, Rochester, New York, USA. Disclosed is a novel process of preparing tobacco smoke filter material, wherein an acidic compound such as citric acid is dissolved in a cellulose acetate spinning...