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Chlorinated polypropylene(CPP)

The research and development of chlorinated polypropylene began in the 1960s. It was first industrially produced by the American Hericules Powder Company. Subsequently, the American Eastman Company, Japan’s Toyo Ink, Asahi Denka and other companies successively built production facilities. From the late 1980s to the present, domestic chlorinated p […]

Polyvinyl chloride (PVC)

Polyvinyl chloride, referred to as PVC in English, is the third most produced synthetic polymer plastic in the world (after polyethylene and polypropylene ), with approximately 40 million tons of PVC produced annually. PVC is a polymer formed by polymerizing vinyl chloride monomer (VCM) with initiators such as peroxides and azo compounds or under the ac […]

Offset printing press(Lithographic printing press)

An offset printing press is a type of lithographic printing press . During printing, the printed images and text are first printed from the printing plate onto the rubber cylinder, and then transferred to the paper by the rubber cylinder.     Offset printing machines can be divided into sheet-fed offset printing machines and web-fed offset pri […]


Pigments are substances that give colors to objects. Pigments are divided into soluble and insoluble, inorganic and organic. Inorganic pigments are generally mineral substances. Humans have long known the use of inorganic pigments, using colored earth and ores, to paint on rock walls and smear their bodies. Organic pigments are generally derived from pl […]

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