Colors:   (black)

Bonjet Black CW Series  are ultra fine pigment dispersions which utilize a chemical treatment process recently developed by Orient Chemical.

Ultra fine pigment dispersion with chemical treatment

• Generally, water based carbon black dispersions are made by grinding carbon black with dispersants or resin in a dispersing media.



• Bonjet Black CW Series  are water-based dispersions which have been made by a chemical treatment that keeps acidity on the surface of the carbon black.



• This product does not contain any dispersants or resin.



• The carbon black disperses in water in such a way that one might say, it is just like dye dissolving in water.  Because this dispersion does not use a physical grinding method, we have the ability to make ultra fine particles which average about 50nm.



• Bonjet Black CW Series maintain the light fastness and heat fastness properties that are typical of any carbon black.



• This product also maintains a very stable and sharp distribution.



• One final point about our Bonjet Black CW Series  is that the solution will remain extremely stable due to the fact that we do not add resin or additives.

Special Features:

1. This product will not condense or precipitate when resin and additives are added.
   Resin and additives are added to pigment dispersions to give it flexibility and luster. Dispersions using dispersant sometimes have condensation and precipitation arising from problems in solubility between the dispersant and resin or additives. There will not be any problems with resin or additives being added to Bonjet, because Bonjet does not contain any dispersant.  You can add any type of resin or additives freely in Bonjet.



2. Chemical treatment makes the conductivity of Bonjet lower than regular carbon black.
   Carbon black is a polycyclic aromatic compound.  Hydrogen and oxygen which bond with carbon on the surface of the crystal will limit the movement/position of -electrons. Accordingly, conductivity of carbon black decreases as there are more C-H or C-O bonds. The conductivity of Bonjet is lower than that of regular carbon black, because of the C-Acid function bond produced by the chemical treatment developed by Orient.



3. Excellent redispersibility.
   Carbon black which is dispersed with dispersants cannot redisperse once it is dried. However, Bonjet can redisperse from a dried state when water is added.



4. High Absorbency.
   Bonjet has excellent dispersibility, but it also has excellent water fastness once absorbed on paper or cloth.