Patent · US Expired

Process for heat-treating a fabric web

US4231165A · kind A · utility

10Cited by
8References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 12, 1978
Grant dateNov 4, 1980
Priority date
Expiry dateJun 12, 1998

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF26B23/022
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A process for heat-treating and, in particular, for drying and/or fixing a continuously moved fabric web in a treatment unit comprising at least two treatment zones through which the fabric web successively passes, using a hot gas stream recirculated in the treatment unit, a certain quantity of waste gas being continuously removed from the treatment unit and freed from constituents present in it and some of the waste gas thus treated being returned to the treatment unit after reheating, the rest of the waste gas being released into the atmosphere.

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