Claims
- 1. Method of producing lyocell-type cellulose fibers by processing a spinnable solution of cellulose in an aqueous tertiary amine oxide according to the dry/wet-spinning process comprising:providing a solution having a content of between 0.05% by mass and 0.70% by mass, based on the mass of the solution, of cellulose having a molecular weight of at least 5×105 and, spinning and processing the solution into fibers.
- 2. Method according to claim 1 comprising providing a solution having a content of between 0.10 and 0.55% by mass, based on the mass of the solution, of cellulose with a molecular weight of at least 5×105.
- 3. Method according to claim 2 comprising providing a solution having a content of between 0.15 and 0.45% by mass, based on the mass of the solution, of cellulose with a molecular weight of at least 5×105.
- 4. Method according to any one of claims 1 to 3, wherein the tertiary amine oxide is N-methyl-morpholine-N-oxide.
- 5. Method of producing cellulose fibers of the lyocell type by processing a spinnable solution of cellulose in an aqueous tertiary amine oxide by the dry/wet-spinning process comprising:(1) providing a solution having a content of between 0.0-5 and 0.70% by mass, based on the mass of the solution, of cellulose with a molecular weight of at least 5×105 and (2) spinning the solution with a spinnerette having more than 10,000 spinning holes which holes are arranged in such a manner that neighboring spinning holes are spaced maximally 3 mm apart and that the linear density of the spinning holes is at least 20.
Priority Claims (1)
Number |
Date |
Country |
Kind |
1053/97 |
Jun 1997 |
AT |
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Parent Case Info
This is a continuation of copending application Ser. No. PCT/AT 98/00151, filed Jun. 17, 1998.
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Continuations (1)
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Number |
Date |
Country |
Parent |
PCT/AT98/00151 |
Jun 1998 |
US |
Child |
09/244323 |
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US |