Is printing (offset) bad for you? God help!

Yes. First, the main source of pollution in the printing process First of all, the ink. Currently widely used in the printing industry or the traditional solvent-based ink, solvent-based ink by the pigment, linker, solvent, filler and auxiliary components, the solvent used is mainly aromatic hydrocarbons, esters, ketones, ethers and other organic solvents, most of these solvents have toxicity, will contaminate the packaged food, drugs and cosmetics and other items; and has a volatile, irritating odor, will pollute the environment and affect the health of workers; organic solvents are flammable and explosive, there is a production of food, medicine, and cosmetics. affect the health of workers; organic solvents are flammable and explosive, there are production safety risks. The second is fountain solution. Fountain solution is to ensure that the blank part of the printing plate to form a hydrophilic salt layer of the necessary conditions, the current offset printing machine is commonly used on the alcohol fountain system, isopropyl alcohol is one of the additives fountain solution. Relative to the traditional water fountain system, this fountain can greatly reduce the amount of water, and to avoid the deformation of the paper and ink caused by excessive water emulsification, thus greatly improving the printing effect. However, due to isopropyl alcohol volatilization of alcohol vapor produced after the toxic, bad odor, will cause harmful effects on human health, many developed countries provide isopropyl alcohol in the workplace threshold limit value is only 200 - 400 ml per cubic meter; and, isopropyl alcohol emissions will also pollute the environment, isopropyl alcohol is a photochemical oxidant Isopropanol is a photochemical oxidizer, which, like other trace gases near the ground, forms ozone when exposed to sunlight, leading to the so-called "summer smog" phenomenon, which irritates the eyes and respiratory system of human beings, jeopardizing people's health and plant growth. Reducing its use is an inevitable trend. Third, film and waste fixing solution. At present, the most used in printing or offset printing, offset printing used to make most of the plate or through the phototypesetting machine out of the film made of PS plate to print on the machine. Film is a silver salt photographic material, which contains silver ions, and fixing after the waste fixing solution also contains a large number of silver ions, these substances if the direct access to the environment, the heavy metal silver ions can pollute the natural water bodies and cause harm to the environment, at the same time, the film base is a polymer compound, in the environment is extremely difficult to degrade and pollute the soil. Fourth, plastic film. Plastic lamination because of its folding, wear-resistant, can protect the print, increase the gloss and low cost and favored by publishers and consumers, but, plastic lamination can not be degraded and become white pollution, lamination of paper can not be recycled and waste of resources, at the same time, the laminating process using toluene, water, such as toxic volatile solvents, which will jeopardize the health of the workers and pollute the environment. Fifth, oil-based varnishing materials. Varnish process is a process of finishing the surface of the printed matter, after the varnish can increase the gloss of the surface of the printed matter, finish and stiffness, play a role in protecting the printed matter, increase the role of beauty. However, the oil-based varnish materials used in the diluent is mainly toluene, and toluene is a toxic volatile substance, the human body inhaled a certain amount of toluene will lead to respiratory and blood system lesions, therefore, the oil-based varnish process does not meet the requirements of environmental protection, especially pharmaceuticals, food and other commodities such as packaging and children's toys, children's books should not be used in the oil-based varnish process. Sixth, plastic printing waste. With the rapid development of the printing and packaging industry, plastics and other organic polymer materials printing is becoming more and more common, printing plant plastic printing waste is a solid pollutant that can not be ignored, due to their water insolubility and in nature is extremely difficult to degrade, if directly into the environment is bound to cause harm. If the waste will be burned nearby, will produce a large number of dioxin and other highly toxic gases, dioxin in very low concentrations can make people and animals undergo aberrations, and is a strong carcinogen, will seriously pollute the surrounding air. Therefore, plastic printing waste must be reasonably treated For this compound, generally try to do a good job in the use of protection, such as gas masks, gloves, to avoid muscle contact. Long-term use of people, more use of milk fungus and other foods to accelerate the excretion of benzene