Common solvents for printing

1, pine perfume: that is, 200 # solvent gasoline, which is a product of petroleum separation, soluble rosin, glycerin stearine and alkyd resin, adjustable metal, glass ink, its solvency is a medium range, with many organic Solvent miscible.

2. Turpentine oil: It is the volatile part of the oil-containing turpentine extracted from pine trees. Turpentine has three isomers: alpha-pinene, beta-pinene, and bis-decene. It evaporates evenly. Due to the unsaturation in the molecular structure, it can produce oxidative polymerization, and it can form a component of film-forming substance that is dissolved in oil and resin. Turpentine oil evaporates evenly and has the effect of preventing crusting and improving leveling properties of oxidized polymeric inks.

3, xylene: industrial xylene is a mixture of three kinds of ortho-position, meta-position and para-position. Xylene has a higher dissolving power than turpentine and pine perfume, and the volatilization rate is faster than both. It is widely used in high-temperature curable inks and oxidative polymerization inks.

4, toluene: It comes from petrochemical or coal coke industry, toluene can dissolve ethyl cellulose, maleic anhydride resin, rubber, vinyl chloride, etc., can adjust the glass ink, metal ink.

5. Ethanol: According to different uses, its purity is different. The purity of anhydrous ethanol is 99.5%, that of industrial ethanol is 95.6%, and that of pharmaceutical ethanol is 70-75%. Ethanol can dissolve many natural resins, such as: shellac, polyvinyl acetate, cyclohexanone resin, polyvinyl acetal resin (net-printing plate is used to make it with adhesive mesh), but the sensitivity of ethanol to solvent resistance Destructive effect of glue.

6, diacetone alcohol: easy to decompose, the main decomposition product is acetone, it can dissolve rosin, polyvinyl acetate, nitrocellulose, shellac, chloroacetate copolymer resin.

7. Acetone: It is an extremely volatile organic liquid that dissolves in the printing market of vinyl chloride resins, vinyl chloride vinegar copolymer resins, and chlorinated rubber. It has a destructive effect on solvent-resistant emulsion film. However, it is a good solvent for tackifiers.

8. Cyclohexanone: It has very good solubility. It can dissolve many natural resins, but it can be dissolved in many synthetic resins, and it can be miscible with most organic solvents. It is a good solvent for solvent-evolving inks.

9, methyl ethyl ketone: It is basically similar to acetone, but the flash point is higher, the evaporation rate is slow, soluble in water, ethanol, ether and hydrocarbons, oils.

10. Isopropanol: It is soluble in water, ethanol, ether and chloroform.

11, Butanol: It can dissolve many natural resins and synthetic resins, such as polyvinyl acetate resin, melamine resin, etc. Butanol and xylene can be used for high temperature curing inks and epoxy inks in a ratio of 37.

12. Ethyl Acetate: It can dissolve ethyl cellulose, nitrocellulose, cypress chloride, chloroacetate copolymer resin, etc.

13. Butyl acetate: It can dissolve many synthetic resins, such as polyvinyl chloride resin, vinyl chloride vinegar copolymer resin, chlorinated rubber, polyvinyl chloride resin, etc. It is a solvent of solvent evaporation type ink, but due to quick volatilization, summer printing should not be suitable. use.

14, kerosene: also known as kerosene, colorless or light yellow transparent oily liquid, is a product of petroleum distribution, can be used to produce printing paste.

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