The perspective of solving the problem of emission of volatile compounds from printing industry into living

Abstract

Printing industry is an important economic branch in all countries. This production involves the use of various chemicals that evaporate into the atmosphere. Among them the most dominant are volatile organic compounds (VOCs) that can be easily transmitted in the work and living environment.

These substances represent health and safety risk to work space air, and in the outer atmosphere they participate in photochemical reactions. Many previous studies have revealed in which techniques of the printing industry and in which stages of the process volatile compounds are emitted. In the process of preparing flexographic printing, and in the printing process using organic solvents which are falling in high-wigged organic compounds because their vapor pressure is greater than 10 Pa. The influence of ventilation reduces concentration type of VOC pollutants by 50%, but it was noticed that the room in winter is not ventilated, and there are wall-mounted fans in many printing companies. GC / MS analysis of screen-printing showed the presence of o, p, m xylene (22.194 mg/m3), ethyl benzene (71.79 mg/m3) in air. It is concluded that in dealing with PVC materials and colors in addition to other personal and protective equipment, are required to wear protective masks with filters and ensure adequate ventilation system in the premises. It is estimated that in the printing with older equipment (monochrome machines) worker inhalation daily 60 minutes of substances based on kerosene. Accurately measured, a sufficient quantity of 10 ml ofsetin lowers the maximum VOC by 20%.