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US 4,361,019 AGranted
Dyeing yarns
OwnerRoderick A. Maundinventor
Life of this patent
Estimating the term…
Abstract
A method of dyeing yarns is provided wherein a single yarn or a web of parallel yarns is passed through a falling stream of liquid dyestuff which is substantially at boiling temperature when it contacts the yarn. The falling stream may be interrupted intermittently or may be traversed to and fro of the yarn to dye the yarn intermittently. Apparatus for conducting the method is described.
Claims8
Apparatus for dyeing a plurality of yarns comprising:
- a battery of yarn holders;
- a plurality of pliable tubes for guiding passage of said yarns from said battery to outlet ends of said tubes, said outlet ends of said tubes forming a planar array;
- means for drawing a plurality of yarns from said battery through each of said tubes and longitudinally through the remainder of said apparatus at a desired rate of movement, said plurality of yarns forming a web of yarns lying side by side at said outlet ends of said tubes and extending through a portion of the remainder of said apparatus;
- at least one nozzle reciprocating transversely of the web of yarns for intermittently applying liquid dye to the longitudinally moving web of yarns at or near the boiling temperature of the liquid dye;
- means for feeding liquid dye to said nozzle at a temperature at or near the boiling point of the dye;
- and
- means for receiving the washed web directly from said nozzle after application of the liquid dye without additional heating of the yarns and for storing of the individual yarns forming the web.
4 more elements
Apparatus for dyeing a yarn comprising:
- at least one yarn holder;
- drive means for drawing a yarn from said yarn holder and for passing said yarn through the remainder of the apparatus;
- means for guiding the individual yarn drawn from the holder by said drive means;
- at least one dye applicator for intermittently applying liquid dye to the yarn at a temperature at or near the boiling point of the dye;
- dye heating means for heating the dye to a temperature at or near its boiling point before supplying the dye to the applicator;
- and
- pickup means able to receive and store the washed yarn.
4 more elements
Apparatus for dyeing a plurality of yarns comprising:
- a battery of yarn holders;
- drive means for drawing a plurlity of yarns from said battery and for passing the plurality of yarns through the remainder of the apparatus;
- guide means for bringing the individual yarns from the battery together to form a web of yarns lying side by side;
- at least one dye applicator for intermittently applying liquid dye to the web at a temperature at or near the boiling point of the dye;
- dye heating means for heating the dye to a temperature at or near its boiling point before applying it to the applicator;
- and
- pickup means able to receive and store the individual yarns from the washed web.
4 more elements
Dependencies are inferred from the claim text.