Quality Assurance

Quality assurance
Quality assurance (QA) is a system of checks designed to ensure that products are free of faults. A quality assurance system involves regular quality control inspections that test and monitor the quality, accuracy and fitness for purpose of the product, from the design stage through to manufacture.
Critical control points
Quality control checks take place at critical control points (CCPs) in a product's manufacture. The following are typical CCPs in textiles manufacture.
Raw materials
Raw materials are tested to make sure they are the correct width, colour, weight and fibre content. Depending on the product end use, the fabric may be tested for strength, durability, crease resistance, stretch, shrinkage or water repellency.
Prototype
The prototype is a mock-up of the product used to trial a design or pattern, see how materials and components behave, try out an assembly process, work out costs and test fitness for purpose in everyday use.
Production
During production there will be checks for stitch and seam strength. Seam allowances - the amount of material between the edge of the fabric and the seam - are tested to check they meet the tolerance stated in the manufacturing specification.
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Final product
This is inspected for size and fit, and to see if the 'look' of the product meets the specification.