Pigments from the chemical composition to classification, can be divided into inorganic pigments and organic pigments two categories, its source can be divided into natural pigments and synthetic pigments. Natural pigments from the source of minerals are cinnabar, red clay, realgar, malachite green, heavy calcium carbonate, wollastonite, talcum powder, mica powder, kaolin and so on. And from plants such as Garcinia, Alizarin Red, Indigo and so on. Synthetic pigments such as inorganic pigments such as titanium white, zinc barium white, lead chrome yellow, iron blue, iron red, red dan and other organic pigments, and organic pigments such as heavy powder, azo yellow, phthalocyanine blue and quinacridone. Pigment function can be divided into anti-rust paint, magnetic pigments, luminous pigments, pearlescent pigments, conductive pigments and so on. Color classification is a convenient and practical method, the pigment can be divided into white, yellow, red, blue, green, brown, purple, black, etc., Pigment without regard to its source or chemical composition.
The famous "dye index" is the use of color classification methods, such as the pigment is divided into pigment yellow (PY), pigment orange (PO), pigment red (PR), pigment purple (PV), pigment blue (PB), pigment green (PB), pigment black (PBr), pigment black (PBk), pigment white (PW) and metal pigment (PM), the same color pigments are arranged in order, such as titanium dioxide PW-6, zinc White PW-5, lead chrome yellow PY-34, quinacridone PR-207, iron oxide red PR-101, phthalocyanine blue PB-15 and so on. In order to find the chemical composition, and another structural number, Pigment such as titanium dioxide for the PW-6C.I.77891, phthalocyanine blue is PB15C.I.74160, can make the paint manufacturers and users can identify the included Pigment composition and chemical structure, so in the international pigment import and export trade have been widely used.
China's national standard pigments GB3182-82 in 1995 and re-approved for the GB / T3182-1995, is also the use of color classification, the color of each pigment has a sign, such as white for the BA, red for the HO, yellow HU, combined Chemical structure of the code and serial number, composed of pigment models, such as rutile Titanium Dioxide BA-01-03, Chrome Yellow HU-02-02, Iron Oxide HO-01-01, Zinc Barium White BA-11-01, A Aniline red HO and 2-01, phthalocyanine blue BGS LA-61-02 and so on.
Pigments can be classified according to the type of compound contained: Inorganic pigments can be subdivided into oxides, chromates, sulfates, carbonates, silicates, borates, molybdates, phosphates, vanadates , Ferricyanates, hydroxides, sulfides, metals, and the like. The organic pigment may be divided into polycyclic pigments such as azo pigments, phthalocyanine pigments, anthraquinones, Pigment indeces and quinacridones, and aromatic amane pigments according to the chemical structure of the compounds.
From the perspective of manufacturing classification can be divided into titanium pigments, iron pigments, chrome pigments, rubber pigments, ceramics and enamel pigments, pharmaceutical chemicals with pigments, Pigment art paint and so on. A variety of special pigments have some unique properties to meet the application requirements. Pigment production plant can also be targeted to recommend a series of professional users of pigment products.