Fabric Inspection Procedure (Four Point System)

FABRIC INSPECTION PROCEDURE:

This procedure shows the steps necessary to ensure an effective fabric inspection quality control program:

1. Determine the fabric quantity to be inspected.

2. Select the fabric rolls for inspection.

3. Place the fabric roll / bale on inspection frame / table.

4.Cut off a 6-inch piece across the width of the fabric from the beginning of the roll. 

Mark this piece so that the inspector will know the right and left side of the fabric. 

Use the strip to check the shading side-to-side and end-to-end by checking it at least 

against the middle of the roll and once at the end of the roll.

5.Inspect for visual defects at a speed slow enough to find the defects.

6. Check that the roll contains the meters as stated by the Fabric Supplier.

Check for bowing & skewing in the fabric

ROLL-TO-ROLL SHADE CHECKING SYSTEM:

Textile links and Controls suggests to use a format for the checking of all fabric shade variations from roll to roll. In this format water falls of different shades’ categories of different rolls is maintained and compared to each other to check the extent of the shading variation.

If any shade requires special attention / treatment in the cutting, it is mentioned in the remarks column.

If any fabric is out of tolerance with respect to the Master Sample or the shade variation extent among the rolls is out of tolerance, then the fabric is reject. The rejected fabric is sent back to Fabric Supplier for reprocessing / replacement.

TOOLS FOR FABRIC CHECKING:

The person who is responsible for fabric inspection must have the following facilities / equipment in good working condition.

1. Inspection frame with counter.

2. D - 65 light source (sunlight) / TL - 84 light source at the inspection frame as per the requirement of the customer.

3. Measuring tape & pair of scissors.

4. Stickers or masking tape to identify the faults.

5. Pick glass.

6. Digital Camera for taking reference snaps.

7. Master fabric sample or customer’s reference sample. 

Four Point System:

The four-point system derives its name from the basic grading rule that a maximum of four penalty points can be assessed for any single defect and that no linear meter can be assigned more than four points regardless of the number of defects within that piece.

PENALTY POINT EVALUATION:

Defects in both warp / fill directions will be assigned points under the following criteria.