| Area |
Test |
Frequency |
| Yarn Incoming |
Yarn count |
Every new lot |
| Yarn shrinkage |
Every new lot |
| Yarn frictional properties |
Every new lot |
| Yarn tenacity and elongation; shade match to standard |
Every new lot |
| Chemicals Incoming |
Alcohol check |
Every new lot |
|
| Deltamethrin assaying |
Every new lot |
|
| Other chemicals
Origin/intact packaging/physical form check |
Every new lot |
| Netting Incoming |
Overall check for impregnable ability |
Every new supplier/new yarn |
| Physical properties (DS, BS, weight, width, mesh count) |
Every new lot |
| Defect number/Grading |
c.a. 10% |
| Warping |
Quality Control staff supervision |
|
| Knitting |
Fabric weight, width and mesh |
Randomly |
| Defect count by Operator |
Every roll |
| Defect count by Quality Control staff |
c.a. 20% |
| Dyeing |
Technical supervision |
|
|
| Shade match to standard |
Daily |
|
| Colour fastness to washing |
Quarterly |
| Heat setting |
Technical supervision |
|
| Fabric width |
Daily |
| Fabric weight and mesh |
Daily |
| Fabric dimensional stability |
Daily |
| Fabric bursting strength |
Daily |
| Impregnation |
Technical supervision |
|
|
| Active ingredient content |
Every lot of production |
|
| Wash resistance of active ingredient |
Daily |
|
| Short-distance variation of active ingredient content |
Monthly |
| Cutting |
Receive fabric width |
Each fabric roll |
| Visual fabric inspection |
100% as fabric laid on table, cut out defects |
| Sewing |
Shade matching |
Each set of fabric tops, panels and loops |
|
| Seam strength |
Each new lot |
| Final inspection |
Visual curtain inspection |
100% hoist or hang curtains, also gauging the length and width dimensions |
| Packaging |
Labelling accuracy |
Each net packed |
|
| Insecticidal and physical properties on made up curtains |
Daily |
| Baling |
Quality Control on made up curtains |
Full check according to WHO specification |
| |
Visual style confirmation |
Ensure each net to be labeled is of the same style |
|
| Quantity of curtains |
Ensure accuracy of count in each label |
Mission and Values