Chemical Properties
Dark yellow powder. Slightly soluble in water, easily soluble in organic solvents such as ethylene glycol ether, DMF, ethanol, etc., and its solution is yellow-brown.
Uses
Solvent Black 34 is mainly used for spraying and curtain coating of natural leathers such as pigskin, cowhide, and sheepskin, and is particularly suitable for spraying and coloring aniline leather. Solvent blacks 24, 25, 27, 34, etc. can also be used as dye components for high-resolution inkjet printing inks (in combination with polyacrylate, vinyl chloride resin, polyurethane, polymer stabilizers, conductive agents, etc.).
Preparation
2-Amino-5-nitrophenol diazo, and Naphthalen-2-ol coupling, and then into a chrome complex (1 to 2 Moore single atoms chromium azo dyes).
Properties and Applications
blue ash. Deep yellow powder. Slightly soluble in water, soluble in ethylene glycol ether, DMF, ethanol, and other organic solvents. Its solution for brown. Dye bath of copper ions slight changes in color, iron ion in the same light. Used for wool, polyamide fiber dyeing, nylon fabric can be in directly on printing. Mainly used for pigskin, such as cow leather, goat natural leather finishing the spray or curtains, especially suitable for aniline leather spraying shading.
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Standard(Perlon)
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Light Fastness
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Soaping
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Persperation Fastness
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Oxygen bleaching
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Fastness to seawater
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Fading
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Stain
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Fading
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Stain
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Fading
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Stain
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ISO
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7
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5
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4-5
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5
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3-4
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5
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5
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