Avaliação da exposição a vapores orgânicos em ambientes de gráficas offset: comparação entre tintas convencionais e ecológicas

• Autor(a) principal: Sawada, Eliza Yukiko
• Data de Publicação: 2007
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório do Centro Universitário Braz Cubas
• Texto Completo: https://repositorio.cruzeirodosul.edu.br/handle/123456789/2335
• topic: Indústria gráfica; Offset; Tintas; Solventes orgânicos; CNPQ::CIENCIAS BIOLOGICAS; CNPQ::ENGENHARIAS::ENGENHARIA SANITARIA

The use of products constaining organic solvents by the offset printing process implies in the emission of volatile organic compounds (VOC's) to the work environment. Many of these compounds such as benzene, toluene, ethylbenzene and the isomers xylenes (well-know by the acronym BTEX) are extremely toxic and can be harmful, representing a serious risk to the health of the workers. In this study, the BTEX concentrations were determined in two different printing plants that use distinct types of inks: the conventional and the so-called ecological, which is manufactured based on vegetal oil. Although the BTEX concentrations found in both printing work environments were below the limits considered by the Brazilian Law for Activities and Unhealthy Operations (Norma Regulamentadora N° 15, NR-15), the exposure to such vapours are characterized as inadequate for some studied points. Mitigating actions are thus desirable and among the possible management proposals we emphasize: the adoption of exhaustion systems, the replacement of the cleaning products, and the use of the ecological ink.