Solvent represents mix of aromatic hydrocarbons with the small maintenance of naften, paraffin and unsaturated cyclic hydrocarbons. Solvent consists of aromatic hydrocarbons approximately for 56% , and the rest is made by unsaturated hydrocarbons.
Solvent receive in the course of coking of coal and at pyrolysis of oil fractions.
Solvent it is applied to dissolution of oils, bitumens, rubbers, mochevino - and melaminoformaldegidny oligomer, polyair of p - phthalic acid, petropolymeric pitches, poliefiramid and poliefirimid, melaminoalkidny paints and varnishes, and also in the course of the press. By method of the solvent plotterny press apply images to banners, vinyl self - adhesive films, a construction grid and other materials. Paint contains solvent which gets into structure of the sealed material. Solvent paint possesses a number of the characteristics necessary for outdoor advertizing — it does not burn out, is not washed away by water etc. , that is is steady against climatic conditions. Paints on a solvent basis are also applied in the shelkotrafaretny press. Here advantages in comparison with UF - otverzhdayemymi paints are that for fixing of the image it is only enough to wait for evaporation of a solvent (a natural way or at a transmission through drying installation). Lack of additional external influences (without drying chamber) is especially important at the press on sensitive materials (delicate fabrics, design papers, any products which deformation due to heating by the UF - lamp is for some reason or other undesirable). Shortcomings of solvent paints are the pungent smell, toxicity (and, as a result, need to equip a workplace with powerful exhaust ventilation). Solvent as the basis of the washing substances, is applied to dissolution of firm deposits and cleaning of the fuel equipment (a fuel lath, a fuel - supply line, fuel injectors) and DVS combustion chambers.
