Patent ID: 7100246
Filing Date: 2006-09-05
Classification: D01G,Y10T

Abstract:
1. A stretch-break process for producing a staple yarn from fiber, comprising filaments fed into a continuous operation, comprising: breaking the filaments in a first break zone by increasing the fiber speed within a first break zone length L1 at a first speed ratio D1 greater than or equal to 2; breaking the filaments in a second break zone located downstream from the first break zone by increasing the fiber speed within a second break zone length L2 at a second speed ratio D2 greater or equal to 2; wherein a relationship (D2−1)/(D1−1) ranges from 0.15 to 2.5, and wherein a relationship L2/L1 ranges from 0.2 to less than 0.4; and consolidating the fiber in a consolidation zone downstream from the second brake zone to form a staple yarn.