Cellulose acetate band, and method for producing cellulose acetate band
AssigneeDaicel Corporation
InventorKazuma OGUNI
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Abstract
The problem to be solved by the present invention is to prevent interruption of a cellulose acetate fiber during spinning of the cellulose acetate fiber thereby enhancing production efficiency of a cellulose acetate band. The cellulose acetate band according to an embodiment of the present invention is formed from cellulose acetate fibers, a total denier thereof is set to a value in a range from 8000 to 44000, a content of titanium oxide is set to a value in a range from 0 wt. % to 0.01 wt. %, and a content of a lubricant in the band measured by a diethyl ether extraction method is set to a value in a range greater than 5 mg but 65 mg or less per 1 m.
Claims9
A cellulose acetate band formed from cellulose acetate fibers,
- a total denier thereof being set to a value in a range from 8000 to 44000, a content of titanium oxide therein being set to a value in a range from 0 wt. % to 0.01 wt. %, and a content of a lubricant in the band measured by a diethyl ether extraction method being set to a value in a range of greater than 5 mg but 65 mg or less per 1 m.
A method for producing a cellulose acetate band, the method comprising:
- preparing a spin dope;
- spinning a plurality of cellulose acetate fibers using the spin dope such that a total denier of a band after production is set to a value in a range of 8000 to 44000;
- and
- applying a lubricant to the cellulose acetate fibers such that a content of the lubricant in the band after production measured by a diethyl ether extraction method is set to a value in a range of greater than 5 mg but 65 mg or less per 1 m,
- wherein, in the preparing the spin dope, the spin dope is adjusted such that a content of titanium oxide in the band after production is set to a value in a range from 0 wt. % to 0.01 wt. %.
Dependencies are inferred from the claim text.