Apparatus and method for applying colors and performance chemicals on carpet yarns
AssigneeInvista North America S.A.R.L.
InventorsWae-Hai Tung, Ronnie Rittenhouse
Life of this patent
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Abstract
Disclosed are processes for application of dyes and topical chemistries to single yarns during a yarn rewind process. The process foregoes the need for downstream environmentally unfavorable dyeing and low PH chemical treatment processes on the finished carpet. Further, neutral pH dye solutions can be used instead of the prior art low pH dye solutions. The single, treated yarn can then be twisted, weaved and tufted, twisted yarn under dry conditions, and the twisted yarn subsequently weaved or weaved and tufted, into a finished fabric or carpet. Also disclosed are systems, BCF yarns, and carpets made from the BCF yarn treated by the disclosed processes.
Claims24
A process for continuously applying a treatment to a single or twisted BCF yarn comprising:
- a. providing a single or twisted BCF (bulked continuous filament) yarn;
- b. winding said yarn on a take up reel;
- c. providing at least one rotating roll including a plurality of wicks for providing a dye treatment;
- d. contacting said wicks with said dye treatment;
- e. contacting said BCF yarn to apply the dye with said wicks to the BCF yarn while in motion prior to winding said yarn on said take up reel;
- f. providing one or more applicators for one or more performance enhancing compositions after said at least one rotating roll;
- g. applying the performance enhancing composition to said dyed BCF yarn while still in motion and without steam fixation and rinsing of said dyed BCF yarn prior to winding said yarn on said take up reel;
- and
- h. heat setting said dyed and performance enhancing treated BCF yarn prior to winding said yarn on said take up reel,
- wherein said yarn exhibits at least equivalent dyeing and enhancing composition performance to processes involving steam and rinsing between dyeing and application of performance enhancing compositions.
Dependencies are inferred from the claim text.