Textiles
Dyes, pigments and auxiliaries for pretreatment, dyeing, printing and finishing.
What we checkShade, strength and fastness
Industries
We qualify suppliers and check production lots across four industries. Each has its own specifications and release criteria.
Paper
Direct, basic and acid dyes and brighteners for paper and board.
What we checkStrength and shade in the mill’s water
Food colours
Synthetic colours, aluminium lakes and natural colours.
What we checkPurity and shade
Fertilizers
Sulphate of potash, SSP, NPK and water-soluble fertilizers.
What we checkNutrient analysis, moisture and physical form
Material images are AI-generated illustrations.
What a lot is held to, by industry.
| Industry | Each lot is held to | Rulebook |
|---|---|---|
| Textile | Shade (ΔE under D65), strength, fastness and the approved recipe | The buyer’s approved specification |
| Paper | Strength and shade in the mill’s water, size and filler conditions | The buyer’s approved specification |
| Food colours | Total colouring matter, subsidiary colours, metals and aromatic amines, then shade | The destination market’s purity standard: FSSAI, US FDA or EU |
| Fertilizers | Declared nutrient analysis, moisture and physical form | Fertiliser (Control) Order, 1985, and the buyer’s specification |
In every industry Nython gives a dated, named technical opinion. It is not a statutory certification and does not replace an official laboratory or regulator where the law requires one.