Frequent contact with ink can lead to chronic poisoning, because ink contains volatile substances that promote dryness. Through contact with respiratory tract and skin, it may cause damage to reproductive system and lead to abnormal liver function. Organic solvents such as ethanol, isopropanol, butanol, propanol, butanone, ethyl acetate, butyl acetate, toluene and 2 toluene are often used in inks.
Although most of these organic solvents will be eliminated after drying, the residual parts will still cause harm to human health, especially for printed matter with large ink area and thick ink layer, which has more residual solvents, and the toxic substances released during use pollute the air and endanger human health.
Matters needing attention in the use of ink
Attention should be paid to controlling the parameters of water-based ink, including viscosity, fluidity, thixotropy and plasticity of ink.
Index control: pay attention to the control index of water-based ink. The control indexes of water-based ink mainly include fineness, viscosity, pH value and drying speed, which play a decisive role in the application effect of ink.
Solvent use: As water-based ink is a pure water-based system, care should be taken not to mix water-based ink with alcohol-based ink and solvent-based ink, and do not add organic solvent to ink to avoid printing quality problems.
The above contents refer to Baidu Encyclopedia-Ink and Baidu Encyclopedia-Newspaper.