Daicel Chemical Industries, Ltd.

Daicell Chemical Industry Co., Ltd.

Hiromu Yokota

Tetuo Kanematu

Masaharu Takegawa

Motoharu Kotani

Mamoru Kimura

Etsuo Otake

The object of the present invention is to provide a low-priced automatized weight control device for filter-rods, able to be easily installed in present manufacturing facilities and to be operated easily without any need of special equipment or special operating qualifications. The automatized weight-control device is comprised of a tension gauge measuring the tension in the tow in the first processing step of the tow manufacturing process, and a weight control system to regulate the second processing step to keep the tension in the tow at the specified constant value by increasing the speed of the pretension rollers through the microcomputer by applying the signals transmitted from the tension gauge.

Cigarette filter-rod manufacturing device

A cellulose nitrate having a degree of nitration of from 12.2% to 14.1% in terms of the nitrogen content and a degree of polymerization of from 100 to 1,000 is suitable to prepare a low-melting glass paste.

Low-melting glass paste and cellulose nitrate therefor

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Sakai, Japan

Hiromu Yokota