Concentric filtering bar formed by mixing tow and paper as well as preparation and application methods thereof

Abstract

The invention discloses a concentric filtering bar formed by mixing two and paper as well as preparation and application methods of the concentric filtering bar. The filtering bar comprises a filtering core and an outer circle of forming paper, wherein the filtering core comprises an inner core and outer core which are coaxial; the end surface of the inner core is polygon-shaped, round, heart-shaped or irregularly shaped; the inner core is directly contacted with the outer core, and inner-ring forming paper is not arranged; the inner core is made of an acetate fiber, and the outer core is made of a paper wood pulp fiber; or the inner core is made of the paper wood pulp fiber, and the outer core is made of the acetate fiber. In the invention, the filtering bar contains both the acetate fiber tow fiber and the paper wood pulp fiber, which have different adsorption performances; and the inner core and the outer core have different pressure drops to cause airflow of smoke to change, so that the filtering bar has the adsorption performance stronger that of a common acetate fiber filtering bar, and better tar-reducing and harm-reducing effects are achieved.

Description

technical field [0001] The invention belongs to the field of cigarette manufacturing, and in particular relates to a concentric filter rod formed by uniform mixing of tow and paper at one time and a preparation and application method thereof. Background technique [0002] The harm of smoking to the human body has become more and more obvious with the development of science, and the demand for reducing tar and harm in the tobacco industry has become increasingly urgent. For the health of consumers and the healthy development of the tobacco industry itself, the State Tobacco Monopoly Administration has also formulated a A rigid indicator for reducing coke and harm. [0003] At present, the use of chemical additives to reduce harm and tar in cigarettes has aroused people's concern about safety, so changing the filter is one of the important methods. Cigarette filter is considered to be an important and effective means of reducing tar and harm. There is a lot of research in thi...

AI Technical Summary

Problems solved by technology

[0007] Chinese patent CN101999755A discloses a paper core coaxial nozzle rod, which is made of acetate fiber and paper to form a very regular coaxial nozzle rod, and the inner core also uses a layer of molding paper. The adsorption performance of this rod is better than that of ordinary filters. Rod, but the production of this filter rod requires special production equipment to process and shape

[0008] Since the existing filter rod forming machines in the tobacco industry are all designed for forming single fiber tow such as cellulose acetate, acrylic fiber tow or paper for paper nozzle rods, they do not have the conditions for simultaneous molding of multiple fibers

Therefore, to use a variety of different fibers in the same filter rod, it is necessary to form them separately first and then compound them, or to carry out large-scale technical transformation of the existing forming equipment system, which will bring about a sharp increase in cost and even unpredictable risks.

Images