SOP: Standard Operating Procedure of Color Evaluation | Color Evaluation Procedure

January 27, 2019 0

SOP – Color Evaluation

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Color Evaluation Procedure

Objective
·         To ensure Fabrics/Trims Color/Shade are matched against buyer Approved standard under buyer recommended/designated Light sources (Primary & Secondary).
·         Fabric/Trims inspectors tested for color Blindness so that they can ensure accurate color Matching and shade segregation of Fabric/Trims.
·         Light Box/Color Assessment Cabinet calibrated yearly by 3rd party to ensure the accuracy of the Light Box.

Procedure

Color Evaluation

·         Color evaluation is a process to make sure all necessary raw materials color/shade checked against buyer approved color/shade using Light Box/Color Assessment Cabinet under designated light source (Primary and Secondary) recommended by buyers.
·         If no specification on light sources to be used from buyers, then use D65 as primary light source & TL84 as secondary Light Source.
·         The Following Raw Materials checked Light Box/Color Assessment Cabinet under designated light source.

1)   Fabrics swatch
2)   Bulk fabric, shade band & color continuity shade card.
3)   Evaluate thread color with approval.
4)   Evaluate Zipper color.
5)   Button Color
6)   All kind of packing ornaments where color/shade is important if any………… etc.

Color Blindness Test:

·         All Personnel in Quality Department are tested for Color Blindness. Those who are failing color blindness will be rejected.

Munsell Hue Test:

Respective QA in fabric inspection, shade band, Raw material check QA at trims store, Final QA & shade segregation at finishing packing section, at least 01 person of each team/dept. has to be tested color checking ability with proven certificate must be in place.

Metamerism Test:

·         Respective team member those who check or evaluate color with light box, he must know light source of the customer. Primary & Secondary.
·         Most of the customer having 02 light sources (1) primary (2) secondary, evaluator must use both light one after one in the same manner, if there is any discrepancy having or not then he/she mark on his inspection record, metamerism check found acceptable or unacceptable, one unacceptable result occur he/she must noticed it to head of Quality as well as business team for customer notification & approval.

Hope this article will help you to know about Standard Operating Procedure of Color Evaluation.
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