Origin
South- and Middle America

Colour
Natural dying material - blue to violet colours

Specification
The following Hematines are available: HPX, NOK, HS, HP, CFPK, CPMK, CFHK, BMS, CFMK, NO, NS. Detailed information available on request.

Description
Blue wood is named after the strong red tree trunk of the Caesalpiniacee or Haematoxylon Campechianum (Logwood), which grows in Middle- and South America and of which only the inner part of the trunk is suitable for extracting Hematine (Blue wood extract). Different colours, from blue to violet, are resulting from pH value and oxidation. A composition with different other dye-wood extracts enables to dye green, brown and even orange.

There are two main classes of Blue wood extracts
Unmodified Hematine: not oxidized, oxidized or semi-oxidized, depending on the required leather or application. Allows dyeing as already practiced for hundreds of years. Depending on the pH-value and the oxidation process different colours can be obtained from blue to violet; a mixture of different dye-wood extracts allows colours from brown to orange. Chemically modified Hematine: depending on product and application oxidized or not oxidized: modified with glucose or natural salts, as these qualities react less sensitive to oxidation. It can be used for surface or penetrating dying.

Application
Dyeing of leather (box-calf, glazed kid and burnish cow, velvet skin, chamois leather, etc.), silk, cotton, fleece, nylon, pharmaceutical products, colouring agent for animal nutrition.

Packing
Spray-dried powder (some qualities can only be ordered as crystallized powder) delivered in bags or small drums. Package size on request.