Patent ID: 11898272
Assignee: LENZING AKTIENGESELLSCHAFT
Field: Textile and paper machines (Mechanical engineering)
Classification: CPC D | IPC D

Claim 0:
1. A process for the production of lyocell type cellulose filament yarns from a lyocell spinning solution of cellulose in an aqueous tertiary amine oxide comprising the following steps, wherein the process conditions are adjusted so that relation (1a) is fulfilled:, L
        >
        
          
            v
            1000
          
          ×
          
            
              1.7
              ⁢
              
                /
              
              ⁢
              titer
            
          
          ×
          p
        
      
    
    
      
        (
        
          1
          ⁢
          a
        
        )
      
    
  

wherein L designates the length of the air gap (mm), v designates the production speed m/min), titer designates the titer of the individual filament (dtex) and p designates the length of the individual spinneret piece (mm) employed in the spinneret, and wherein v is 400 m/min or more.