Process for dyeing or finishing textile fibre materials
CA 1182028 A · Owner: Ciba-Geigy Investments Ltd. · Inventors: Binz, Jorg; Guth, Christian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for dyeing or finishing textile fibre material using foam, which process comprises applying to said materials an aqueous foam composition which in addition to, containing dye or finishing agent contains a foamable, system comprising water and at least (A) an anionic surfactant and, (B) a non-ionic block polymer based on ethylene oxide and propylene oxide units. The material is then dried if desired, and then, subjected to a heat treatment preferably a steam treatment. Level dyeings with good penetration of dye and/or excellent finishes are obtained on the material.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted February 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.