I. water ink water: water ink main has coloring agent, and water-soluble organic solvent, and surfactant, and fake plastic gives agent/increased heavy agent, and to ion water and the pH regulation agent, composition, General will dye directly dissolved a. water ink water: water ink main has coloring agent, and water-soluble organic solvent, and surfactant, and fake plastic gives agent/increased heavy agent, and to ion water and the pH regulation agent, composition, General will dye directly dissolved Yu water in the, again joined water-soluble organic solvent and the other additives can made water ink.

II. Pen and ink: also known as iron-tannic acid ink is faded black permanent composition, pigment ingredients, stabilizers, corrosion resistance, wetting agents and preservatives and so on. 1. Black durable not faded ingredients: mainly tannic acid (C4H10O9), Gallic acid (C7H6O5? H2O) and ferrous sulfate (FeSO4) and other ingredients combine with each other, tannic acid, Gallic acid ferric and ferrous, oxidized into insoluble ferric, tannic acid, Gallic acid iron and iron, which enhanced water resistance, which enhance the black, so that the ink water resistance, black and color lasting fade. 2. pigment ingredients: currently used are acid and direct blue dye ink blue, black and blue is the main color of the ink, aqueous acid does not deteriorate, but in case of alkali is turning brown. Direct blue pigments in the ink, due to containing more impurities, not more, in humid environments prone to mildew. 3. stabilizer: the purpose of add stabilizer to the ink, mainly eliminating ink deposition, so as to avoid writing occurs when water. Commonly used stabilizer sulfate (HSO4), oxalic acid (COOH) 2, formaldehyde (HCHO) solution. The stabilizer has some acidity, acidification of the paper buried the potential harm, not more. 4. resist: ink addition of stabilizers in strong acidic, in order to prevent corrosion, often with corrosion-resistant, making it and iron to form a thin film, reducing the corrosive effects of sulfuric acid 90%. Corrosion of iron in the ink will not tip increased, thereby increasing the stability of inks. 5.Wetting agent to prevent ink evaporation, resulting in inconvenience of writing, ink add nonvolatile, glycerol and water absorption (C3H5 (OH) 3), so that the tip of dry, in order to facilitate writing. 6. preservative: ink organic matter contained in the raw materials and other substances, in humid environments prone to rot, mildew, prevent decay and phenol or pharmaceutical preservatives such as pentachlorophenol sodium.

III. out: titanium dioxide + formaldehyde. This is an older formulation, because the high cost of titanium dioxide and formaldehyde toxicity is too large, formula has now improved, the general formula is ether + calcium carbonate + surfactant, surfactant's main role is to make calcium carbonate and ethyl ether can be mixed fully. IV. fluorescent: fluorescent marker ink thrown by fluorescence agents and components, such as solvents, there are red-orange, light green, yellow, blue and other colors, all is transparent to light, mainly for books, journals, text information on the line, causing striking role. Basic formula for 5 grams, fluorescent fluorescence edible pigment initiator (PVP) with 35 g, 350 g of ethanol, glycol, diluted with water to 1 part water fitted into a highlighter into fluorescent marker pen and ink. In the water, then add water soluble organic solvent and added