PREPARATION METHOD FOR POLYLACTIC ACID FIBER FILTER ROD WITH GOOD TEMPERATURE RESISTANCE
卷宗概要
申请人
CHINA TOBACCO YUNNAN INDUSTRIAL CO., LTD.
发明人
Baoshan Yue; Tao Wang; Yanfei Shen; Jiao Xie; Han Zheng; Hao Wang; Yongfa Gui; Jing Zhang; Haiyan Ding; Liang Cheng; Wei Ding
IPC 分类
CPC 分类
Provided is a preparation method for a polylactic acid fiber filter rod with better temperature resistance, which relates to the technical field of cigarette preparation. The method includes the following steps: separately selecting an up-to-standard polylactic acid raw material having the highest content and having the lowest content of the levo-isomer to prepare a core component and a sheath component; forming sheath-core polylactic acid fiber tows; and carrying out forming on a plurality of sheath-core polylactic acid fiber tows to prepare a polylactic acid filter rod. By means of controlling the proportions and preparation of polylactic acid raw materials, so as to improve the uniformity of an inner-layer structure thereof, and the filter performance of the polylactic acid tows is improved.
原文（中文）
Provided is a preparation method for a polylactic acid fiber filter rod with better temperature resistance, which relates to the technical field of cigarette preparation. The method includes the following steps: separately selecting an up-to-standard polylactic acid raw material having the highest content and having the lowest content of the levo-isomer to prepare a core component and a sheath component; forming sheath-core polylactic acid fiber tows; and carrying out forming on a plurality of sheath-core polylactic acid fiber tows to prepare a polylactic acid filter rod. By means of controlling the proportions and preparation of polylactic acid raw materials, so as to improve the uniformity of an inner-layer structure thereof, and the filter performance of the polylactic acid tows is improved.