Dyeing of pile fabrics

US4163298A · kind A · utility

Assignee

• Bruckner Apparatebau GmbH · DE

Inventor

• Manfred Schuierer · Michelstadt, DE

Key dates

• Filing date: Sep 11, 1978
• Grant date: Aug 7, 1979
• Expiry date: Sep 11, 1998

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D06B17/04
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Methods of and apparatus for cold dyeing pile fabrics, particularly carpets, wherein dye liquor is first applied to the pile side of the fabric in an amount between 150% and 300% of the material weight, the dye impregnated fabric then being coiled, under tension, into a roll and the roll allowed to stand, all at room temperature. The magnitude of the tensile force applied to the fabric is greater than about 90% of that required to cause dye liquor to emerge from the roll, but is not more than that which enables 5%, at the most, of the liquor to emerge from the roll.