Production Introduction
Name: Direct Yellow Salt Free Dyes for Liquid CMYK Water Based Ink
We are process that as comprehensive purification and filtration, which is high purity & that is of critical importance, such as inkjet printing
Ultra filtration / Reverse Osmosis - Removes Inorganic Salts
Ion exchange - Improves solubility
Carbon treatment - Improves surface tension
Micro filtration - Removes 99.9% of insoluble
Specialized cartridge filtration (as low as 0.2 micron) - Removes most insoluble.
These are suitable for the formulation of water-based inks due to low electrolyte content, and due to very high solubility.
For salt free Dyes what we are testing in our Laboratory we are explain you as below:
1.pH (1 gm/99 ml water) by ph meter
2.Moisture @135C (LOD) by Kalfisher machine
3.Insoluble (in10%SOIN.Through 0.2 micron filter paper) crucible
4.Chloride contain by Potiotritration
5.Absorbance @nm (10 mg/LD WATER) BY U>V spectrophotometer
6.Solubility (in 10%solnThorughO.2micronfilter paper) Result in second pass Minimum 20 second
7.Surface tension we check in product minimum (50 dynes/ cm) by surface tension mirror
8.Thin layer chromatography and HPLC for dye contain and other subsidiary dye testing
9.Heavy metal test: Less than 20 ppm
DESALINATION IS CARRIED OUT AS UNDER
1.Distillation to remove inorganic component
2.Ultra-filtration for remove in organic impurities
3.Reverse Osmosis to make compound salt free
4.Ion exchange to improve solubility
5.Carbon treatment to improve Surface tension
6.Micro-filtration to remove all most 100% insoluble
7.Specialized cartridge filtration (o.5 micron) to remove most insoluble
8.Remove oil parts in dye intermediates for light fastness and heat fastness improve
Company Introduction
TK-CHEM has a vast experience in this domain and is able to provide Direct Yellow. These direct dyes are processed in accordance with quality norms using the finest quality ingredients. Our direct dyes are stringently checked by our quality controllers on numerous quality parameters at our hi-tech quality testing labs.
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