Method and apparatus for space dyeing yarn

Details Method and apparatus for space dyeing yarn Method and apparatus for space dyeing yarn

1995-07-24

1997-01-21

Coe, Philip R.

Bleaching and dyeing; fluid treatment and chemical modification

Fluid treatment

Intermittent length

68203, D06B 114, D06B 1100

Patent

active

055949681

ABSTRACT:
A method and apparatus for space dyeing yarn includes a series of dye stations each of which has a dye applicator roll and a rotatable pattern roll having deflecting rods which may deflect yarn into engagement with the periphery of the respective dye applicator roll. Each pattern roll is rotatably driven by a servo motor and selectively rotated to position the deflecting rods for permitting dyeing to occur at the respective station and to rotate the roll and thus the rods to angular dispositions where the yarn is not deflected. A programmable controller controls the respective motors to the selected angular positions at precise times to start and stop the application of dye to the yarn. An encoder associated with the yarn feed system feeds timing signals related to yarn movement to the controller so that rotation of each pattern roll is in timed relationship with the movement of the yarn.

REFERENCES:
patent: 1930986 (1933-10-01), Shaffner
patent: 3083640 (1963-04-01), Milner
patent: 3541958 (1970-11-01), Keown
patent: 3871196 (1975-03-01), Matsunaga
patent: 5339658 (1994-08-01), Haselwander

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