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Maybe you like reading books, and you like to hug the ink that comes out of your book. But in fact, our book is no longer green.
Last Saturday, the 2nd China (Guangdong) International Printing Technology Exhibition was opened in Houjie, Dongguan. It was the second largest printing industry in the world and China's largest exhibition. It had never seen so many green and green banners on the scene. The green booth, even for the first time, saw a green carpet at the show. This gave me a lot of questions: Why is the printing industry so eager for "green"? Why does the printing industry have long been regarded as a "highly polluting" industry, even unpopular in some cities? Can the printing industry become "green"?
"Smell the book is smell of formaldehyde"
In the largest pavilion, Hall 3, in addition to roaring large-scale printing machinery, intermittent mobile phone signals, there is an impressive smell.
Jin Zhengyang, the general manager of Suzhou Bolaite Ink Co., Ltd., exhibited bluntly that most of the printing industry is now in line with national standards, but it can be said that there is no real environmental protection. According to Chinese ancient sayings, there are gold houses in the book, but there is a complete version in the printing industry: “In addition to the gold house, there is also formaldehydeâ€.
"The scholarship that it achieved was different from ancient times. Now you read the book again and you smell formaldehyde," said Kim Jong-yang.
In fact, this sentence only used formaldehyde, which is almost universally known as "the street rat." Mr. Zhang Chunan, owner of Dongguan Jiafu Packaging and Printing Products Co., Ltd., and founder of China's Putian Network, had been a chemistry teacher for 10 years before entering the printing industry. Referring to the pollution of printed materials, he broke a long list of poisonous and hazardous substances that were difficult to remember, including benzene, phenolic aldehydes, lead, etc. This was one of the reasons why the European printing industry was hit by the EU's environmental protection directive.
Where does the pollution of the book come from? According to Xiao Gongjun, general manager of Dongguan Zhili Printing Co., Ltd., who is watching the show, it is mainly in two links, one is ink and the other is the process of plate making, that is, film making (film). The former mainly produces VOC (Volatile Organic Compounds), while the latter is accompanied by poisonous and harmful substances.
UV ink: environmental protection does not save money
In addition to traditional inks and soy oil inks, there is a more realistic "green ink" - "UV ink", and almost all well-known ink suppliers have done "UV ink" advertising in their booths. "UV ink" uses "UV" UV drying, no volatiles.
Xiao Gongjun, general manager of Dongguan Lili Printing Co., Ltd., said that UV ink is not only recognized as an environmentally friendly ink, but also has a strong adhesion capability. The reason why it cannot be promoted is that it is expensive, and it is not surprising that it is 4 times more expensive than traditional ink. The bosses of printing companies from Dongguan generally believe that: “Ink does not have to be said, whoever is the cheapest.†It seems that it is not easy for UV inks to occupy a place in the increasingly difficult printing industry.
In the process of book production, there is another serious pollution in the intermediate link, which is the production of film. Xiao Gongjun, general manager of Dongguan Lili Printing Co., Ltd., introduced the process of drying the film. The film itself is not an environmentally friendly material. The chemical is added during the process of drying. The toxicity is not low. The solution is simple and the industry calls it a CTP solution. The rough idea is to replace the process of drying the film with a digital device, completely without film. Heidelberg, Kodak, Fuji, Founder, etc., in the exhibition halls of the printing exhibitions, but among the manufacturers that are somewhat famous in the international and domestic markets, almost all promote their CTP.
"But the biggest problem for SMEs is that they can't afford it. You bought this machine and it may be idle for 28 days a month." Xiao Gongjun said, CTP equipment is expensive, usually about 1 million, a small and medium-sized enterprise Use too much waste. This is a problem in the world, including Japan is also the vast majority of small and medium-sized printing companies. Their solution is to establish a "platemaking center", and many companies share one. This practice also exists in Dongguan, but it is not universal.
Conclusion: To make our book green, it still seems to take a long wait. Perhaps our children will use the green book sooner. In September last year, the Ministry of Environmental Protection and the General Administration of Press and Publication stated that all primary and secondary schools will use environmental protection materials in the next three years. Environmentally friendly inks must be used in the printing of these textbooks. From this year onwards, environmental protection textbooks that have been “turned green†can see a green label.
Maybe you like reading books, and you like to hug the ink that comes out of your book. But in fact, our book is no longer green.
Last Saturday, the 2nd China (Guangdong) International Printing Technology Exhibition was opened in Houjie, Dongguan. It was the second largest printing industry in the world and China's largest exhibition. It had never seen so many green and green banners on the scene. The green booth, even for the first time, saw a green carpet at the show. This gave me a lot of questions: Why is the printing industry so eager for "green"? Why does the printing industry have long been regarded as a "highly polluting" industry, even unpopular in some cities? Can the printing industry become "green"?
"Smell the book is smell of formaldehyde"
In the largest pavilion, Hall 3, in addition to roaring large-scale printing machinery, intermittent mobile phone signals, there is an impressive smell.
Jin Zhengyang, the general manager of Suzhou Bolaite Ink Co., Ltd., exhibited bluntly that most of the printing industry is now in line with national standards, but it can be said that there is no real environmental protection. According to Chinese ancient sayings, there are gold houses in the book, but there is a complete version in the printing industry: “In addition to the gold house, there is also formaldehydeâ€.
"The scholarship that it achieved was different from ancient times. Now you read the book again and you smell formaldehyde," said Kim Jong-yang.
In fact, this sentence only used formaldehyde, which is almost universally known as "the street rat." Mr. Zhang Chunan, owner of Dongguan Jiafu Packaging and Printing Products Co., Ltd., and founder of China's Putian Network, had been a chemistry teacher for 10 years before entering the printing industry. Referring to the pollution of printed materials, he broke a long list of poisonous and hazardous substances that were difficult to remember, including benzene, phenolic aldehydes, lead, etc. This was one of the reasons why the European printing industry was hit by the EU's environmental protection directive.
Where does the pollution of the book come from? According to Xiao Gongjun, general manager of Dongguan Zhili Printing Co., Ltd., who is watching the show, it is mainly in two links, one is ink and the other is the process of plate making, that is, film making (film). The former mainly produces VOC (Volatile Organic Compounds), while the latter is accompanied by poisonous and harmful substances.
UV ink: environmental protection does not save money
In addition to traditional inks and soy oil inks, there is a more realistic "green ink" - "UV ink", and almost all well-known ink suppliers have done "UV ink" advertising in their booths. "UV ink" uses "UV" UV drying, no volatiles.
Xiao Gongjun, general manager of Dongguan Lili Printing Co., Ltd., said that UV ink is not only recognized as an environmentally friendly ink, but also has a strong adhesion capability. The reason why it cannot be promoted is that it is expensive, and it is not surprising that it is 4 times more expensive than traditional ink. The bosses of printing companies from Dongguan generally believe that: “Ink does not have to be said, whoever is the cheapest.†It seems that it is not easy for UV inks to occupy a place in the increasingly difficult printing industry.
In the process of book production, there is another serious pollution in the intermediate link, which is the production of film. Xiao Gongjun, general manager of Dongguan Lili Printing Co., Ltd., introduced the process of drying the film. The film itself is not an environmentally friendly material. The chemical is added during the process of drying. The toxicity is not low. The solution is simple and the industry calls it a CTP solution. The rough idea is to replace the process of drying the film with a digital device, completely without film. Heidelberg, Kodak, Fuji, Founder, etc., in the exhibition halls of the printing exhibitions, but among the manufacturers that are somewhat famous in the international and domestic markets, almost all promote their CTP.
"But the biggest problem for SMEs is that they can't afford it. You bought this machine and it may be idle for 28 days a month." Xiao Gongjun said, CTP equipment is expensive, usually about 1 million, a small and medium-sized enterprise Use too much waste. This is a problem in the world, including Japan is also the vast majority of small and medium-sized printing companies. Their solution is to establish a "platemaking center", and many companies share one. This practice also exists in Dongguan, but it is not universal.
Conclusion: To make our book green, it still seems to take a long wait. Perhaps our children will use the green book sooner. In September last year, the Ministry of Environmental Protection and the General Administration of Press and Publication stated that all primary and secondary schools will use environmental protection materials in the next three years. Environmentally friendly inks must be used in the printing of these textbooks. From this year onwards, environmental protection textbooks that have been “turned green†can see a green label.
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