
Visual Inspection and Grading of Fabrics. In trade relationships between sellers of fabrics and their customers, a system of. It is recommended that a suitable fabric inspection machine that provides a. A lot of 100 rolls of 100 yards each is inspected using a 4-point system. Ten rolls (10% of total) are selected for inspection.
Fabric Quality Inspection:
The quality of a final garment depends on the quality of a
fabric when it is received as a roll. Even the most outstanding
manufacturing methods cannot compensate for defective materials.
Normally, 10% of the rolls that are received are evaluated based on
a four-point system. This way, fabric related quality
problems can be avoided before it is put into production' Drama kannada mp3 songs free download 2012.
Four- Point System:
Amount to select: Inspect at least 10% of the total rolls of the
shipment.
Selection of rolls: Select at least one roll of each color. If
more than one role must be selected, then choose the additional
roles in proportion to the total number of roles per color
received.
Defect Classification (Four- Point System):
Size Defect Penalty .
-3 inches or less: 1 Point
-Over 3 inches, but less than 6: 2 Points
-Over 6 inches, but less than 9: 3 Points
-Over 9 inches: 4 Points
The length of the defect is used to determine the penalty point.
Only major defects are considered. No penalty points are assigned
to minor defects. (A major defect is any defect that would cause a
final garment to be considered a second.)
Major Defects:
· Major woven fabric defects include but are not limited to
slubs, holes, missing yarns, yarn variation, end out, soiled yarns,
and wrong yarn.
· Major dye or printing defects are out of register, dye spots,
machine stop, color out, color smear, or shading.
Acceptance Criteria and Calculation:
· 40 points per 100 yards is the acceptable defect rate
· # of Points per 100 yds = # of penalty points x 100
Yds inspected
.width tolerance +/-1' acceptable
Inspection Procedure:
Lego harry potter years 5 7 nintendo ds rom downloads. · Determine the amount to inspect 10%).
· Select the rolls to inspect.
· Put the rolls on the inspection machine or other viewing
device.
· Cut off a 6 inch piece across the width off the end of the
roll. Mark the right and left side of the strip. Stop the
inspection process every 50 yards and use the strip to check for
any shading problems. Also make sure to check the end of the
role.
· Inspect for visual defects with the light on at a speed slow
enough to find the defects. (The fabric must be checked at a slow
rate in order to effectively find flaws). Sometimes you may have to
turn the light off to see how a flaw will affect the appearance of
a garment.
· Check that the roll contains the correct yardage as stated by
the piece goods source.
· Check for skewed, biased, and bowed fabric.
· Mark any defects to the side with colored tape so that they
can be easily found and noted.
· Record any defects.