epi and ppi of denim
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The purpose of our study was to investigate the effect of air temperature and humidity on the air permeability (air flow) of 6 fabric made of cotton, polyester a and polypropylen. It is also known as thread count or cloth count. It was revealed that enzyme washing has a little effect in EPI and PPI of woven denim apparel. EPI & PPI calculation: EPI and PPI are the exceptionally normal word in the textile business. Thread counts range from as low as 20 threads per inch as used in tobacco cloth to as high as 350 threads per inch, found in type writer ribbon fabrics. It is further noted that due to different duration of washing EPI, PPI was little changed. Change in physical and mechanical properties of denim jeans with variation of processing time and concentration of potassium permanganate. EPI and PPI affects the compactness of the fabric. Material Measurement To calculate the length of any rolled fabrics, this formula gives the nearest accuracy. Oil spot. Cloth weight in GSM = {EPI/Warp Cout)+(PPI/Weft count)}* 25.6; oz (ounce ) per sq. Regularly, EPI is the quantity of wrap yarns per inch of fabric and PPI is the quantity of weft yarns of per inch of fabric. In woven fabric EPI and PPI is estimated to the quantity of yarn on a fabric. yard = GSM(Grams per sq. Fabric shade%. meter)/34 . Instrument used for sample testing: ***Matrohm machine: Testing the indigo in the sample g/l. To measure pH ; Conclusion: Finally with the help of this topic we learned about the denim fabric production process. 1.5g/l Time 1.5 min The General formula to calculate Maximum EPI and PPI for a Given count of Warp and Weft. EPI and PPI. 3.5. Properties of denim Jeans Before Wash After Wash KMnO 4 Conc. Now in a plain weave in a repeat there are 2 threads and 2 intersections. Table 1. Thus a fabric of 74×66 means 74 EPI×66 PPI. Being an merchant and sourcing professional, if you don’t know how to find Bar charts of color depth. Comparison of Color Depth Graphical comparison of color depth Figure 9. For 2/2 Twill in one repeat of 4 threads there will be 4 threads and 2 intersections. To determine redox in dyed sample. Also as a rule please remember that 40s count yarn diameter is 1/165 of an inch. Normally EPI and PPI of a fabric are described as EPI×PPI. Strength test etc. Balanced constriction. Due to relaxation shrinkage, PPI (picks per inch) and EPI (ends per inch) was increased than untreated denim garments.

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