Patent · US Expired

Method and machine for washing and bleaching textiles

US4319973A · kind A · utility

17Cited by
3References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 23, 1979
Grant dateMar 16, 1982
Priority date
Expiry dateJul 23, 1999

Classification

  • Technology area (CPC D)Textiles; Paper
  • CPC primaryD06F34/30
  • WIPO fieldEnvironmental technology
  • WIPO sectorChemistry

Abstract

This invention relates to a method for washing and bleaching textiles. The method according to the invention, which is carried out by means of an aqueous wash bath containing a detergent substantially free from bleaching agent, is characterized in that said bleaching is performed by incorporating into said wash bath, at the required moment, an aqueous alkaline oxidizing solution containing in particular hydrogen peroxide ions, said aqueous alkaline oxidizing solution being produced electrolytically, immediately before its incorporation into said wash bath, by reducing oxygen at a cathode in an alkaline medium.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.