Kt&g Corporation

Kolon Industries, Inc.

Kt&g Coroporation

Sang Yoel Lee

Jong Yeol Kim

Soo Ho Kim

Sung Jong Ki

Bong Su Cheong

Sang Mok Lee

Woo Chul Kim

Hyun Suk Cho

Jong Cheol Jeong

Sang Woo Jin

Yong Kwan Cho

Hyeon Tae Kim

This invention relates to a lyocell material for a tobacco filter and a method of manufacturing the same, and more particularly to a lyocell fiber having a modified cross-section for a tobacco filter, wherein the cross-sectional shape of a monofilament contained in a lyocell fiber is controlled to increase the external surface area of the fiber, after which then crimps are formed, thereby exhibiting properties equal or superior to those of conventional lyocell materials, even when used in a small amount.

Modified cross-section lyocell material for tobacco filter, and preparation method therefor

Disclosed are a lyocell material for a cigarette filter and a method of preparing the same, wherein a crimped tow is manufactured using a lyocell multifilament including low-strength lyocell monofilaments, and thus the ultimately prepared lyocell material for a cigarette filter can exhibit low strength, thereby increasing processing efficiency during the manufacture of the cigarette filter.

Lyocell material for cigarette filter and method for preparing same

This invention relates to a method of manufacturing a lyocell material for a cigarette filter, including (S1) spinning a lyocell spinning dope composed of 8 to 13 wt % of a cellulose pulp and 87 to 92 wt % of an N-methylmorpholine-N-oxide (NMMO) aqueous solution; (S2) coagulating the lyocell spinning dope spun in (S1), thus obtaining a lyocell multifilament; (S3) water-washing the lyocell multifilament obtained in (S2); (S4) oiling the lyocell multifilament water-washed in (S3); and (S5) applying steam and pressure to the lyocell multifilament obtained in (S4), thus obtaining a crimped tow having 30 to 40 crimps per inch.

Method of manufacturing a lyocell material for a cigarette filter

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Yongin-si, South Korea

Sang Yoel Lee