1. Environmental protection concepts related to printing
VOC
• The American ASTM D3960-98 standard defines VOC as any organic compound that can participate in atmospheric photochemical reactions;
Ÿ • German DIN55649-2000 standard defines VOC as any organic compound whose boiling point or initial boiling point is lower than or equal to 250 ℃ under normal pressure conditions
• In the sense of environmental protection, participating in atmospheric photochemical reactions to generate ozone after VOC volatilization directly causes air pollution;
Printing common volatile organic compounds
• Gasoline gasoline (100% VOC, 100% volatile)
• Blanketwash rubber cleaning agent (90-95% VOC)
• Alcohol alcohol IPA isopropyl alcohol (100% VOC)
VOC damage to the body
IPA alcohol:
• is a dangerous fire source
• The central nervous system affecting the human body
• Irritating to eyes, nose and other organs
• Irritation and destruction of the skin
• dizzy
Gasoline / kerosene:
• It is a dangerous fire source • It stimulates and destroys the skin, and has a damaging effect on the human central nervous system
2. Several testing standards that the printing industry should pay attention to
GB9685—China National Food Packaging Agreement
Since June 1, 2009, the "Sanitary Standards for the Use of Additives for Food Containers and Packaging Materials" (GB9685-2008) was officially implemented. The standard stipulates the principles, scope, maximum usage, specific migration or maximum residue and other restrictive requirements of 959 additives for food containers and packaging materials. The standard emphasizes that substances not specified in the list shall not be used in processed food containers and packaging materials
ROHS—EU Electronic Product Packaging Agreement
RoHS is a mandatory standard established by EU legislation. Its full name is "Directive on Restriction of the Use of Certain Harmful Components in Electronic and Electrical Equipment" (Restriction
ofHazardousSubstances). The standard has been formally implemented since July 1, 2006, and is mainly used to regulate the materials and process standards of electronic and electrical products, making it more conducive to human health and environmental protection. The purpose of this standard is to eliminate 6 substances in the electrical and electronic products, including lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers.
EN71-3 and EN71-9-EU toy packaging agreement
EN71 is the normative standard for toy products in the EU market. Children are the most cared and loved group in the whole society. The toy market that children generally love is developing rapidly. At the same time, various types of toys have caused injuries to children due to quality problems in various aspects. Requirements are becoming increasingly strict.
The part of EN71 related to the printing industry is EN71-3 and EN71-9. The former is the liquid standard, that is, the ink and varnish used in printing, and the latter is the standard of paper used in printing. Mainly detect the content of eight heavy metals, applicable age labels, formaldehyde and so on.
HR4040—U.S. Toy packaging agreement
HR4040 is the customary abbreviation of the US Consumer Product Safety Improvement Act (CPSIA / HR4040), which was officially signed into law by President Bush on August 14, 2008.
The details are as follows: The decree is the toughest consumer protection bill since the establishment of the Consumer Product Safety Commission (CPSC) in 1972. In addition to the stricter requirements for lead content in children ’s products, the new bill also makes new regulations on the content of phthalates, a harmful substance in toys and child care products.
Low-carbon environmental printing ideas
1. Analyze the carbon emissions of the printing process (analyze the generation of VOC)
2. Take corresponding measures to reduce carbon emissions (reducing VOC emissions)
3. Optimize the production process to stabilize the printing process and improve production efficiency
4. Use high-quality environmentally friendly materials
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