(19)
(11) EP 0 358 386 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
25.09.1991 Bulletin 1991/39

(43) Date of publication A2:
14.03.1990 Bulletin 1990/11

(21) Application number: 89308619.9

(22) Date of filing: 24.08.1989
(51) International Patent Classification (IPC)5: D06M 16/00, D06M 11/30, D06M 11/50, D06M 15/59, D06M 15/643, D06M 15/267, D06M 15/595, D06M 13/364
(84) Designated Contracting States:
AT BE CH DE ES FR GB IT LI

(30) Priority: 31.08.1988 GB 8820561

(71) Applicant: PRECISION PROCESSES (TEXTILES) LIMITED
Derby DE5 2EY (GB)

(72) Inventors:
  • Connell, David Longley
    Western Underwood Derbyshire DE6 4PF (GB)
  • Palethorpe, Hazel Alma
    Belper Derbyshire DE5 1SP (GB)
  • Szpala, Anthony
    Ripley Derbyshire DE5 8HS (GB)
  • Thompson, Andrew Philip
    Codnor Derbyshire (GB)

(74) Representative: Gaunt, Robert John et al
Stevens, Hewlett & Perkins 1 Serjeants' Inn Fleet Street
London EC4Y 1LL
London EC4Y 1LL (GB)


(56) References cited: : 
   
       


    (54) Method for the treatment of wool


    (57) A method for the treatment of wool so as to impart shrink resistance comprising, in any order, the steps of:-

    i) treating the wool with a proteolytic enzyme, and

    ii) subjecting the wool to either or both of an oxidative treatment and treatment with a polymer,

    with the proviso that when the oxidative treatment is used alone it comprises a wet chlorination process.
    The method may be operated either as essentially a batch process or as a process involving a combination of continuous and batch treatments.





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