The necessity and feasibility of green printing in gravure printing
the printing industry has always been the focus of the high pollution industry. With the increasing awareness of environmental protection, the development of green printing has become a reality and an obligation for the whole industry. The entire production line of printing industry is full of danger of polluting the environment. If we want to realize the whole industry's green, we must start from every link. China packaging and printing machinery network Xiaobian has arranged how to achieve green printing.
Green printing refers to the use of environmental protection materials and technology, printing process to produce less pollution, saving resources and energy, after the printing is abandoned, easy recycling, recycling, natural degradation, small impact on the ecological environment printing. Green printing requires coordination with the environment, including the use of environmentally friendly printing materials, the clean printing process, the safety of the printed product to the user, and the recycling and recycling of the printed matter. That is to say, the entire life cycle of printing materials from raw materials selection, production, use and recycling should meet the requirements of environmental protection. The whole production line of printing industry is all over the danger of polluting the environment. To realize the green of the whole industry, we must start with every link.
Gravure has long been criticized for its VOC emissions. In gravure printing process, due to the large number of organic solvents, equipment running at high speed and static electricity, it is easy to cause fire accidents. Therefore, compared with offset printing, screen printing and flexographic printing, the safety of gravure printing process is more important. Domestic gravure enterprises are mostly small and medium enterprises, the safety facilities and safety awareness are relatively weak, almost every year there are fire accidents, some intaglio factories (workshops) have been burned, not only to enterprises and society caused huge economic losses, but also brought huge security risks to the surrounding environment.
In recent years, industry enterprises attach great importance to safety work, some enterprises have put forward “ safety is the greatest benefit, is the premise of the realization of all goals ” “ employees do not grasp the security equals suicide, leadership does not grasp the security equal to the killing of ” and other slogans, reflecting the extreme importance of the security work in the Indo industry.
The intaglio enterprises should conscientiously abide by the safety production law of the People's Republic of China, the fire law of People's Republic of China, the general provisions for storage of dangerous chemicals, the regulations on the safe use of chemicals in the workplace, the regulations on the safety management of hazardous chemicals, the management measures for the registration of hazardous chemicals, and the warehouse prevention and control. Fire safety management rules and other regulations related to the intaglio industry, and take corresponding safety measures, such as controlling the volatilization of solvent indoor, setting up personal safety protection device, preventing electrical short circuit, eliminating static electricity and so on.
The raw and auxiliary materials adopted conform to the requirements of the regulations, and no harmful substances are added or generated in the printing process, and products do not harm the health of operators and consumers. The influence of the process of gravure printing on human health is mainly manifested in the volatilization of solvent to the workshop. If the concentration is more than the relevant standards, it will have a bad effect on the operator and the related personnel. The impact of printed matter on human health is mainly manifested in excess of residual solvents, excessive content of heavy metals and hygienic safety of ink auxiliaries.
This requires that intaglio enterprises must comply with relevant regulations and standards, such as the People's Republic of China food hygiene law, GB9683 "Hygienic standard for compound food bags", GB9685 "food containers, additives used in packaging materials, hygienic standards", and YC263-2008 "volatile organic compounds in cigarette bar and box wrapping paper" Limited quantity, GB/T7707-2008 "intaglio upholstery printing", CY/T11-1994 "permissible concentration of toluene and xylene in the air of gravure workshop and testing method", GBZ2.1-2007 "occupational exposure limit value of hazardous factors in Workplace (chemical harmful factors)", GBZ2.2-2007 "occupational exposure limit of harmful factors in Workplace (physical factors)" "" "and so on.
Environmental friendliness is a general term for behavior characteristics that do not pollute the environment, save resources and energy, reduce emissions and recycle economy. Specific to the gravure printing process, at least should include the following aspects. Reduce VOC emission, treat and recycle organic waste gas when conditions are available, use energy saving technology, reduce energy consumption, reduce the loss of raw materials, increase the rate of finished products, improve printing efficiency, reduce preparation time, improve the quality of printing products, properly handle printing waste, discharge of sewage and noise conforms to the relevant standard. Yes. The relevant standards include GB18597 "control standards for hazardous waste storage pollution", GB16297 "comprehensive emission standard of air pollutants", GB8978 "wastewater discharge standard" and GB12348 "environmental noise emission standards for industrial enterprises".