green What is printing ?
Green printing refers to a printing method that uses environmentally friendly materials and processes, produces less pollution during the printing process, saves resources and energy, is easy to recycle and reuse after printing, is naturally degradable, and has little impact on the ecological environment . Green printing requires coordination with the environment, including the use of environmentally friendly printing materials, clean printing production processes, the safety of printed materials to users, and the recycling and recycling of printed materials, that is, the entire life of printed materials from raw material selection, production, use, and recycling The cycle should meet the environmental protection requirements.
What are the characteristics of green printing?
Reduction and moderation, non-toxicity and harmlessness, pollution-free and pollution-free are the three main characteristics of green printing. Reduction and moderation refer to the modest printing with the least amount of consumption and the most simplified process under the conditions of information recognition, protection, convenience, sales and other functions of green printing; non-toxic and harmless means that the printed materials should not contain toxic substances, Or the content of toxic substances should be controlled below the relevant standards; pollution-free and pollution-free means that the entire life cycle of printed products should not cause pollution or cause pollution to the environment, that is, from raw material collection, material processing, manufacturing products, products The whole process of use, waste recovery and regeneration, and the final disposal shall not cause pollution to the human body and the environment.
What are the requirements for raw and auxiliary materials?
· The requirement of green printing on varnish is water-based or photo-curing varnish.
· The requirement of green printing for dusting is plant dusting.
· Green printing requires the use of water-based coating adhesives.
· Green printing requires inks, varnishes, blankets, and adhesives not to add 6 kinds of phthalates.
· The brightness of green printing on paper should meet the GB / T24999 standard; the brightness of green printing on the paper used in the textbooks of primary and middle schools should meet the GB / T18359 standard.
· The limit of cyclohexanone in the limit of harmful substances in green printed products is ≤1.0mg /
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