Inspection of Gray Fabric

Inspection of gray fabric:

            The process of observing and locating different types of faults in gray fabric is known as inspection of gray fabric.

Types of faults in the gray fabric: 

•  Broken picks
•   Broken ends
•  Cut weft (pinhole in fabric due to cut r breakage of pick)
•  Neps, peels, and cracks
•  Missing of interlacement of pick and end
•  Yarn contamination
•  Floating or protruding fibers
•  Hang Pick( a pick is out of line for short distance creating hole cavity)
•  Wrong Drawing (wrong order of drawing ends through heals and reeds.

Four Point inspection system of fabric:

           The 4-Point System assigns 1, 2, 3 and 4 penalty points according to the size and significance of the defect.

Penalty points grading:

The following fabric penalty point grading standards are to be used during inspection.

1. No more than 4 penalty points may be assigned for any single defect.
2. No more than 4 penalty points may be assigned to one linear meter, regardless of the number of defects with in that one meter.
3. A continuous defect shall be assigned 4 points for each meter in which it occurs.
4. Any roll having a running defect through more than three continuous meters shall be rejected regardless of points count.
5. No roll shall be accepted that contains a full width defect in the first or last three meters.
6. A hole or torn is considered to be a major defect and shall be penalized 4 points.

Work cited: http://uctemtn.blogspot.com/2012/06/inspection-of-gray-fabric.html