Process and apparatus for coloring textile yarns
AssigneeBurlington Industries, Inc.
InventorsPaul B. Blalock, William C. Schwartz
Life of this patent
Estimating the term…
Abstract
Method and apparatus for producing textile yarns so that one surface of the yarn exhibits a visually perceptive darker color hue when compared to another surface of the yarn. The yarn surfaces are coated with a colorant-containing liquid (e.g. a dye- or pigment-containing liquid) and are subsequently dried to effect a drying rate differential between the one and another surfaces to cause the colorants to migrate towards the faster-drying surface to a degree sufficient to achieve the darker color hue thereon. Twisting of the produced yarns during packaging and/or weaving will thus create a woven textile fabric having randomly distributed color variations to achieve a visually pleasing striated, tone-on-tone or heather fabric appearance.
Claims53
A method of producing a colored textile yarn comprising the steps of:
- (a) applying a colorant-containing liquid to the surface of the textile yarn;
- and
- (b) unevenly heating the textile yarn to cause the colorant in the liquid to substantially migrate toward the source of heat to thereby produce a colored yarn having one portion that is visibly darker in color hue when compared to another portion of the yarn.
A method of coloring textile yarn so as to produce yarn having a darker color hue on one side thereof when compared to the other side of the yarn, said method comprising the steps of:
- (a) applying a colorant-containing liquid to the surfaces of said one and other sides of the yarn;
- (b) drying said one side of the yarn at a drying rate which is faster than the drying rate of said other side of the yarn to establish a drying rate gradient between said one and other sides;
- and
- (c) allowing the colorant in the liquid applied according to step (a) to migrate to said one side of the yarn by virtue of the drying rate gradient established according to step (b), said migration effecting a darker color hue on said one side when compared to said other side.
A method of coloring a textile yarn having upper and lower yarn surfaces so that the lower yarn surface exhibits a visually perceptive darker color hue when compared to the upper yarn surface, said method comprising the steps of:
- (a) coating the upper and lower surfaces of the yarn with a colorant-containing liquid;
- (b) bringing the lower yarn surface into contact with a heated surface so that the lower yarn surface is dried at a rate faster than the upper yarn surface;
- and
- (c) allowing the colorant in the liquid applied to the yarn according to step (a) to migrate to the lower yarn surface by virtue of the faster drying rate thereof, said migration being in an amount sufficient to produce a visually perceptive darker color hue on the lower yarn surface when compared to the upper yarn surface.
A method of producing a woven textile fabric comprising the steps of:
- (a) coloring textile yarns having upper and lower yarn surfaces so that the lower yarn surface exhibits a visually perceptive darker color hue when compared with the upper yarn surface, said coloring being practiced by the steps of;
- (i) applying a pigment-containing liquid to the upper and lower yarn surfaces;
- and
- (ii) drying the lower yarn surface at a rate faster than the drying rate of the upper yarn surface to cause the pigments to migrate to the lower yarn surface to a degree sufficient to create a visually perceptive darker color hue on the lower surface when compared to the upper surface;
- (b) weaving the colored yarns to form a woven textile fabric.
A method of producing a pigmented glass sliver yarn comprising the steps of:
- (a) applying a pigment-containing liquid resin to the surface of the textile yarn;
- and
- (b) unevenly heating the testile yarn to cause the pigments in the liquid resin to substantially migrate toward the source of heat to thereby produce a pigmented yarn having one side that is visibly darker in color hue when compared to the other side of the yarn.
A method of coloring glass sliver yarn so as to produce yarn having a darker color hue on one side thereof when compared to the other side of the yarn said method comprising the steps of:
- (a) applying a pigmented liquid resin to the surfaces of said one and other sides of the yarn;
- (b) drying said one side of the yarn at a drying rate which is faster than the drying rate of said other side of the yarn to establish a drying rate gradient between said one and other sides;
- and
- (c) allowing the pigment in the liquid resin applied according to step (a) to migrate to said one side of the yarn by virtue of the drying rate gradient established according to step (b), said migration effecting a darker color hue on said one side when compared to said other side.
A method of dyeing a glass sliver yarn having upper and lower yarn surfaces so that the lower yarn surface exhibits a visually perceptive darker color hue when compared to the upper yarn surface, said method comprising the steps of:
- (a) coating the upper and lower surfaces of the yarn with a pigment-containing liquid resin;
- (b) bringing the lower yarn surface into contact with a heated surface so that the lower surface is dried at a rate faster than the upper yarn surface;
- and
- (c) allowing the pigments applied to the yarn according to step (a) to migrate to the lower yarn surface by virtue of the faster drying rate thereof, said migration being in an amount sufficient to produce a visually perceptive darker color hue on the lower yarn surface when compared to the upper yarn surface.
A method of producing a woven textile fabric having randomly distributed color hue variations comprising the steps of:
- (a) coloring glass sliver yarns having upper and lower yarn surfaces to that the lower yarn surface exhibits a visually perceptive darker color hue when compared with the upper yarn surface, said coloring being practiced by the steps of;
- (i) applying a pigment-containing liquid resin to the upper and lower yarn surfaces;
- and
- (ii) drying the lower yarn surface at a rate faster than the drying rate of the upper surface to cause the pigments to migrate to the lower yarn surface to a degree sufficient to create a visually perceptive darker color hue on the lower surface when compared to the upper surface;
- (b) twisting the yarns colored according to the step (a) so that the darker color hue of the lower yarn surfaces is visually randomly distributed along the length of the yarns;
- and
- (c) weaving the twisted yarns to form a woven textile fabric.
Dependencies are inferred from the claim text.