Friday, September 7, 2012

FABRICATION


FABRICATION
(Knitting, Weaving)
What is a Fabric Defect?

A Fabric Defect is any abnormality in the Fabric that hinders its Acceptability by the consumer
WHAT ARE THE FACTORS THAT COULD LEAD TO FABRIC DEFECTS?
Machine-Related Factors:
  Failure of spinning preparation to eliminate or minimize short and long-term variation
 Failure of opening and cleaning machines to completely eliminate contaminants and trash particles
• Failure of the mixing machinery to provide a
 homogeneous blend

 Excessive machine stops particularly during pinning
 Excessive ends piecing during spinning preparation
• Poor maintenance and housekeeping
  Weaving-related defects
  Knitting-related defects
Material-Related Factors:
            Fiber contaminants
            Excessive naps and seed coat fragments
            Excessive short fiber content
            Excessive trash content
            High variability between and within-mix
            Clusters of unfavorable fiber characteristics
            Weight variation
            Twist variation
            Excessive Hairiness