Wednesday, September 1, 2010

Garment Dyeing - Part-1 - Check List for PFD garments

Well prepared is half dyed! - this is a dyers' slogan.

Quality Assurance is a defense mechanism that protects us from flaws and problems that may sprout out after dyeing and finishing. A thorough inspection by qualified people will save a lot. We at Nuchem suggest our clients to make the following tests before starting Garment Dyeing.

What you need to know before dyeing your garments?:

•      Some dyeing processes may cause unseen garment flaws to become apparent subsequent to processing; such as pin holes, bad seams, and optical spots. As these flaws are inherent in the garments prior to processing, which the dyer cannot be responsible for.
       Because each garment costs more and job dyers are very much responsible for any fault after processing,  a pre-inspection  of greige garments in a dark room equipped with UV lights may proves effective to locate optical brightener spots, oil marks and even sewing thread variations.

•      Many garments are cut and sewn from previously prepared/finished fabrics (such as water repellants, fire retardants, fluorocarbon, silicone softeners or resins), which may impact the dying process.
       This is a typical case and all garment dyers would regularly face this type of incidents. A better solution is to dye one or two random pieces in a sample garment dyeing machine and get the party's approval.

•      Many garments are assembled using several different types of fabric. Dye saturation levels and shrinkage may differ between fabric types (even if it is all cotton, as in Greige cotton and bleached cotton combinations) causing unpredictable results.
       As told for the earlier point the only suggestion to  make a sample dyeing and find out the final effect and get the approval of the concerned party.

•      The garment dyer has no idea in most cases what is present on the garment or how it will behave in the dyeing process. Even on well prepared cloth there will be residual oils, fats, waxes, sizes on woven goods, spinning oils, etc, all of which should be removed to be able to dye successfully.
•      Also to be taken into consideration is the shrinkage, creases, threads, labels and buttons.
Open seams, wrong stitching techniques, non- matching threads, and missing stitches, improper creasing of the garment, erroneous thread tension and raw edges are some of the sewing defects which can affect the garment quality adversely. During processing the quality control section needs to check each prepared article against these defects.

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