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专利名称：Apparatus and method for heat-setting
carpet yarns with hot atmospheric air
发明人：Wae-Hai Tung,Ronnie Rittenhouse申请号：US10819905申请日：20040407公开号：US07073318B2公开日：20060711
专利附图：
摘要：An apparatus and method for texture heat-setting bulk continuous filament(BCF) yarns in hot air heat-setting machines that includes a preheating device/step using amixture of steam and atmospheric air to preheat a twisted BCF yarn bundle to developcrimp memory and provide cohesion to the twisted BCF yarn bundle. Yarn bundlecohesion during texture heat-setting helps to avoid frequent breaks at the winder of thehot air heat-setting machine. The addition of the preheating device/step significantlyimproves the ability of hot air heat-setting machines to maintain continuous operationduring texture setting of BCF yarns and makes the hot air heat-setting methodcommercially viable for this application.
申请人：Wae-Hai Tung,Ronnie Rittenhouse
地址：Marietta GA US,Calhoun GA US
国籍：US,US
代理人：Charles E. Krukiel
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