Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EI Du Pont de Nemours and CofiledCriticalEI Du Pont de Nemours and Co
Priority to ES8600077ApriorityCriticalpatent/ES2000300A6/en
Publication of ES2000300A6publicationCriticalpatent/ES2000300A6/en
Yarns And Mechanical Finishing Of Yarns Or Ropes
(AREA)
Abstract
Carpet yarn with reduced static propensity is produced by melt spinning non-conductive nylon filaments into a quench chimney and pneumatically introducing spin-oriented electrically conductive bicomponent filaments into the freshly spun threadline before it leaves the chimney. The combined yarn is consolidated at a puller roll, subjected to drawing, and subjected to co-bulking before being wound. - The electrically conductive bicomponent filaments are sheath/core filaments. The core is made of synthetic thermoplastic contg. electrically conductive carbon black. The sheath component, most pref. nylon, encapsulates more than 50 percent of the core.