Filter rod production process for seamless bonding of wrap paper and tow filter rod

• Main Authors: YANG CHENGYUN, GONG WEIMIN, MU DINGRONG, YANG YONGPING, CHEN BAORONG, XIAO YANG, GUI YONGFA, LIU YONGZHONG, REN YUNCHUN
• Format: Patent
• Language: Chinese; English
• Published: 18.05.2011
• Subjects: CIGARETTES; CIGARS; HUMAN NECESSITIES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES; MOUTHPIECES FOR CIGARS OR CIGARETTES; SMOKERS' REQUISITES; TOBACCO; TOBACCO SMOKE FILTERS

The invention relates to a filter rod production process for the seamless bonding of wrap paper and a tow filter rod. The filter rod is cylindrical, and wrap paper is wrapped outside the tow. The filter rod production process comprises the following steps of: coating a binder on the inner surface of the wrap paper; tightly bonding the wrap paper and the tow; and molding and cutting. The binder is a cellulose diacetate binder, and the wrap paper can be selected from smooth-surface thin paper produced from fiber pulp, or non-woven fabric thin paper. Corrugated grooves can be pressed on the surface of the wrap paper, and separation points are pressed on the corrugated grooves. Because the tow and the wrap paper are bonded together, a gap formed between the wrap paper and the tow can be eliminated so that the air resistance on the contact surface between the tow and the wrap paper is constant with air resistance in the tow, and thus, the permeation of air, permeating into one side of the wrap paper, into the inne