Method for preparing cigarette filter fibers

Abstract

The invention discloses a method for preparing cigarette filter fibers. The method comprises the following steps: mixing polylactic acid, starch and other main raw materials, performing melt extrusion by using a twin-screw extruder, and granulating so as to obtain polylactic acid-starch composite particles; performing melt spinning, ejecting the polylactic acid-starch composite particles from spinneret orifices of a spinneret plate via the melt formed after extruded melting, performing immersion treatment on the obtained starch-polylactic acid composite fibers in an alpha-amylase aqueous solution, and treating through a silane coupling agent; and finally, uniformly spraying essence into the fibers, and drying at normal temperature, thereby obtaining the cigarette filter fibers. The cigarette filter fibers prepared by the method disclosed by the invention has excellent adsorption, support and slow-release abilities on the essence, are excellent in fragrance depositing performance and capable of effectively improving the cigarette smell and have high practical value.

Description

technical field [0001] The invention relates to the technical field of cigarette filter materials, in particular to a method for preparing cigarette filter fibers. Background technique [0002] With the improvement of people's living standards, low-tar and low-harm cigarettes have gradually become the mainstream of cigarette products, followed by the problem of cigarette aroma loss. In order to meet consumers' demand for cigarette taste and achieve the purpose of making up for the fragrance of cigarettes, cigarette flavoring technology has emerged as the times require. Among them, adding flavor to the filter tip can reduce the loss of spices during combustion, which has great advantages. The most commonly used method in the current filter perfuming technology is to spray flavors and fragrances on the filter tow to achieve the purpose of perfuming. Although this method is convenient to operate and simple in process, the existing filter tow fiber has a long-lasting fragrance ...

AI Technical Summary

Problems solved by technology

The most commonly used method in the current filter perfuming technology is to spray flavors and fragrances on the filter tow to achieve the purpose of perfuming. Although this method is convenient to operate and simple in process, the existing filter tow fiber has a long-lasting fragrance performance. Poor, direct flavoring will easily lead to volatilization and loss of flavor, and the effect of improving cigarette smoking is not good, and it is not suitable for long-term storage, which limits its application