Introduction: For dyeing in textile it is very essential to know the hardness of water. The pre-treatment and also dyeing process face more problem for more hardness of water. So before run the dyeing process should control the hardness of water. Otherwise the result will not good for the product. Essential Apparatus & Chemicals : …
Continue reading How to measure the hardness test of WaterHardness of Water
Test Name: 1. Hardness of water 2. Purity test of CH3COOH 3. Purity test of NaOH 4. Purity test of Na2CO3 1. Hardness of Water: Ø At first 5cc water is taken in a small beaker Ø Then 2 drops of Buffer solution and 1 drop of Calamagite Indicato is mixed well with water. At …
Continue reading Different Types of Testing Procedure1.Soda Lime Process 2.Base exchange process ( Permuted ) 3.Demineralization 4.Soda Alum 5.Aceration 6.Chelation on sequestration. Soda Lime Process: In this process, Hydrated lime and sodium carbonate are added to precipitate calcium and magnesium ions as compounds of low solubility. For temporary hardness, Ca(HCO3)2+Ca(OH)2 ———–à 2CaCO3↓+2H2O Mg(HCO3)+2Ca(OH)2 ———à 2CaCO3↓+Mg(OH)2+2H2O For Permanent Hardness, CaSO4+NaCO3 ————–à …
Continue reading Methods of Water PurificationThere are different standards of water in the textile. But among them one is followed strictly as a standard of all textile washing and dyeing pretreatment. Here is that PH should be in the range of 7-8 Water should be odorless and colorless. Water hardness- Total hardness max 5°dH Solid content <50 mg/l Iron (Fe) …
Continue reading Standard for textile dye house water supply | Specification for process water | Ideal quality of feed water for textile industry