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Monday, January 31, 2011

Quality control procedure

Specific quality control procedures come from the type of good a company produces and the processes used in production. For example, job order costing tracks the use of direct materials and labor for each job or individual project produced. Analytical quality control procedures can be harder to implement for these manufacturers, as each project is slightly different. Rather than comparing the project to historical guidelines, quality control managers will often take an analytical approach to measure the project against the company’s production standards offered to clients

Analytical Quality Control

Analytical quality control procedures are statistical measurements that a company implements to determine how well it consistently produces goods. Manufacturers use these procedures to ensure their quality matches both customer expectations and the current standard of goods sold on the market. Analytical quality control procedures require companies to take a sample from a larger population of goods, apply a regimen of tests, tweak production procedures to correct problems, and train employees accordingly.

Quality control standard

In addition to stitch inspection, garment quality control also involves setting aside soiled items and searching for human error. They generally check garments to make sure they have been properly labeled by size and color. In addition, they inspect seams to be sure machine operators properly aligned each piece before sewing. When inspecting shorts or pants, they usually check to be sure each leg is of the same length.

AQL inspection

Garment construction usually involves the use of several different types of sewing machines, and garment inspectors carefully inspect machine stitching. Some of those machines are over lock machines, straight stitch machines, and bar tack machines. Over lock machines, also referred to as sergers, usually use more than one needle to produce a seam that does not have a raw edge. These machines are used to produce stronger seams that will not ravel after laundering and wear. Bar tack machines are usually used to provide reinforcement to areas of extreme stress and in the attachment of belt loops.

Garment qualtiy control

Most clothing manufacturers do not require that their garment quality control inspectors have higher education. They may, however, require these inspectors to undergo training prior to beginning their jobs. Quality inspectors in clothing manufacturing often do much more than simply inspect the garments. In many cases, they are required to clip hanging strings and fold and sort the garments so they are ready for packaging and shipment.

Quality control

Most all forms of garment quality control involve sight and stress inspection. Quality inspectors look over individual items in an effort to spot defects in fabric and workmanship. In addition, these inspectors may pull at seams to determine if the strength of the seam is adequate to accept stress. Seams that must be able to accept the stress of body movement include seat seams, inseams and seams at sleeve openings. These are the areas where the body most often moves, so these seams must be especially strong.