Carbon-containing polypropylene filament tow for cigarette and preparation method thereof

Abstract

The invention discloses a carbon-containing polypropylene filament tow for a cigarette and a preparation method thereof. The carbon-containing polypropylene filament tow for a cigarette is prepared by uniformly blending polypropylene slices and activated carbon functional master batches and carrying out melt spinning of the mixture. Concretely, the preparation method comprises the following steps of uniformly blending activated carbon functional master batches having carbon content of 10 to 40%, cooling master batches and modified master batches, blending the mixed master batches and polypropylene slices with control of a ratio of the master batches to the polypropylene slices as main materials in an auto-weighing way, carrying out melt spinning by a screw extruder, and orderly carrying out oiling, drafting, water washing, curling and drying to obtain the carbon-containing polypropylene filament tow for a cigarette, wherein particle sizes of activated carbon of the activated carbon functional master batches are in a range of 0.3 to 2.0 microns; aperture sizes are in a range of 0.5 to 3 nanometers; and a specific surface area is in a range of 600 to 1500 m<2> / g. The carbon-containing polypropylene filament tow for a cigarette can be spun directly by one-step method-based equipment for spinning a polypropylene filament tow for a cigarette, has strong operability, contains uniformly distributed activated carbon, reduces falling of activated carbon, allows carbon content adjustment, and has a low production cost and all indexes satisfying industry requirements and national standards.

Description

technical field

[0001] The invention relates to a cigarette filter tip material and a preparation method thereof, in particular to a carbon-containing polypropylene tow for cigarettes and a preparation method thereof. Background technique

[0002] In recent years, due to the adjustment of the structure of cigarette products by the State Tobacco, especially the improvement of the two requirements for cigarettes, "coke reduction, harm reduction, and green environmental protection", the tobacco industry has had to work hard on tobacco leaf formula and filter functions to achieve "coke reduction and reduction." Harmless, green and environmental protection" requirements. Since part of the particle and gas components of the smoke itself exist in the tobacco leaves or are produced during the combustion process, developing new filter materials and enhancing filter functions is one of the ways to meet the requirements of "coke reduction, harm reduction, and environmental protection"....

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