Acid washing indigo powder
Property and usage:
| The acid washing indigo powder is a new indigo form that is produced through the refining of common indigo. It has low iron content, little impurities and high purity. Its reduction liquor is clear and transparent. The color light after dyeing on cotton fiber is more brilliant than common indigo. |
Quality index:
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Appearance
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Homogenic dark blue powder
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Colour light
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Similar as the standard sample
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Content
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≥ 96.0%
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Moisture content
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≤ 1.0%
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Strength
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Equal to 100 percent of the standard sample
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Degree of fineness
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Passing through the 60# screen mesh ≥ 95%
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PH value
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7
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Content of ferric ions
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≤ 200PPM
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Package: In the sealed plastics--lined iron drums(or plactic drums) of 25kg net each.
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