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Lab Dip Calculation

Lab Dip Calculation
Rana Sohel
Executive Engineer
Sunman Textile Mills Ltd. Chittagong
Cell: +8801912-420118
Email: rsohel07tex@gmail.com




Lab Dip Development:
Lab dip is small swatch of fabric to define color and its recipe before it goes for bulk dyeing. Developing Lab dip is one of the primary jobs for a merchandiser to start an order execution. Lab dip is very important for dying factory. Because bulk production order depends on lab dips. Besides, lab dip plays an important role in shade matching & this is an important task before bulk production. In this article lab dip calculation are given below.

Lab Dip Calculation
Lab dip development
Lab Dip Calculation:
Usually following calculations are followed:

Dye Solution = (Shade % X Sample Weight) / (Stock solution %) (cc).

Salt = (Shade % X Liquor) / 1000 (gram per liter, gpl).

Soda Solution = (Shade % X 100 X Liquor) / (1000 X Stock solution %) (cc).

Sample Calculation for 0.5% Shade:

Sample wt. = 5 mg
Material liquor ratio = 1: 10

Total liquor = (5 X 10) = 50 cc

Dye solution required = (5 X 0.5%) / 1% = 2.5 cc

Salt solution required = (50 X 25) / (20 X 10) = 6.25 cc

Soda ash solution required = (50 X 10) / (20 X 10) = 2.5 cc

Water required = {50 - (2.5 + 6.25 + 2.5)} = 38.75 cc


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