Dyeing Quality control

   ! 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PH test Quality assurance: Quality assurance: Quality assurance is defined as all those possible planned and systematic actions necessary to provide adequate confidence than a product or service will satisfy given requirements for quality The Quality Assurance Department is assigned to maintain consistently uniform quality of the material in process and various stages of its manufacturing Quality. .. prepared for delivery Process control in continuous dyeing: Process control in continuous dyeing: THE MAIN FUNCTIONS OF PROCESS QUALITY CONTROL ARE AS FOLLOWS- 1 Obtaining and maintaining optimum process condition 2 To minimize the wastage during process and form reproducible results 3 Establishing correct operating procedure 4 Carrying out adequate machinery maintenance 5 Controlling production yield... other tests of the fabric or yarn are done here 5 In dyeing section 6 According to the buyer’s sample, sample dyeing is done in sample dyeing machine in dyeing shed & again matched with the approved sample 7 If result is OK, then bulk production 8 During dyeing, samples are taken until accurate shade matching The interval may be 30-40 minutes 9 After dyeing sample is collected after softening matching... fabric inspection Procedures are described below: In dyeing section:       After approval form the buyer, sample dyeing is done in dyeing m/c in dyeing shed & again matched with the approved sample If result is OK then balk production, During dyeing, samples are taken until accurate shade matching The interval may be 30-40 minutes After dyeing sample is collected after softening matching is... Quality assurance at different stage: Quality assurance at different stage: Assures the quality of the products of dyeing section in the following three steps: 1 In laboratory 2 In dyeing section & 3 In finishing section Procedures are described below: In laboratory 1 Swatch card from buyer according to their requirement 2 Recipe prediction for sample dyeing 3 Sample dyeing until matching with swatch card... cannot be competitive 12) Put everybody in the company to work: Distribution and authority of responsibility should be given to all PROCESS QUALITY CONTROL IN WET PROCESSING: Aim of process quality control in textile pretreatments is to maintain consistent uniform quality of the material in processes at various stages of manufacturing GREY ROOM: GREY ROOM: Under ultraviolet light mineral oil will look... department’s effectiveness The most important function of process control lab is to reduce the cost, by ensuring the production with required quality, with the help of standard specification APPROACH TO PROCESS CONTROL: The choice of process condition, for the given product is taken by the previous history and forming new norms without affecting quality The optimum norms may vary from unit to unit and machine... management can solve those 3) Mass Inspection: Quality control typically involves inspection of product This inspection must be carried out at various stages of manufacturing Many time inspections are saving the cost of production 4) Avoiding Business Price tag: Purchasing lowest cost material some time gives poor quality product Purchasing should seek the best quality suppliers and long term relationship... relationship In long run this would be cheaper, than having low quality suppliers NECESSARY STEPS TO CONTROL QUALITY AND TO MAINTAIN IT: 5) Constantly improving system of production and services: Improvement is not one effort A management should see constantly towards improvement in system of production It would reduce the waste and improve the quality with reduction in cost 6) Training on the job: The.. .Quality Management system: On Line Test  Fabric GSM control  Grey Fabric Inspection with 4 point system  Diameter and Width control  Shade Check;  Bias and Bowing;  Visual appearance (Enzyme performance);  Stripe Off Line Test Off line quality are divided into two groups-  Physical Tests and Chemical Tests Physical