I. Preface The printing industry has been continuously advancing with the social changes since ancient times. Papermaking and movable type printing have brought a splendid history to the printing industry in China. Now, prints everywhere are more abundant in the society. life. Therefore, the degree of development of the printing industry is an important indicator to measure the degree of modernization, industrialization, commercialization, and civilization of a country.
While prints enrich and beautify our lives, they also cause damage and pollution to the environment in which we live. A considerable part of this is due to printing inks. Therefore, under the premise of excellent performance, ink and water-based varnishes with environmental characteristics have begun to receive attention from the domestic printing industry.
Second, the development of ink and wash rely on technological progress and promote the use of ink from the aqueous polymer emulsion, insoluble pigments, surfactants and related additives by the chemical process and physical mixing prepared. Suitable for flexo and gravure printing.
Compared with ink, ink and ink have no adverse effects on the health of printing press operators due to their non-volatile and toxic organic solvents. They have no pollution to the atmosphere and no pollution to the printed matter itself; The characteristics of the ink, compared to the ink, can eliminate the flammable and explosive hidden dangers in the printing shop, which is conducive to safe production. Of course, the scope of application of ink and ink is not the same, ink is mainly offset, ink is mainly flexo, and gravure and screen printing share. In developed countries such as Europe, America, Japan, etc., ink has gradually replaced ink, becoming a special ink for printing methods other than offset printing. In the United States, 95% of flexographic prints use ink and 80% of gravure prints use ink.
In addition to environmental protection, ink and wash ink in foreign countries, its performance is also very superior: the ink is stable, high brightness, strong coloring, does not corrode plates, strong adhesion after printing, adjustable drying speed, strong water resistance, four-color overprint and special Color printing can be used. Ink ink started late in China, but it has developed rapidly. Especially in recent years, it has been developing at a rapid rate. With the increase in the demand for ink and wash, the quality of domestic ink painting has also been improved. In the traditional sense, ink ink has the disadvantages of slow drying, poor gloss, ineffable water, and imprecise printing, which have been significantly improved. Like the ink provided by this company, it is close to the international advanced level. In the case of high prices of imported ink, the cheap Chinese-made ink has gradually occupied the market, but we should also clearly understand that domestic ink is not as good as the imported ink and ink in terms of chroma, luster and stability, and is in the high-net line. The gap in the registration is even more pronounced.
This is mainly the gap between pigments and binders. Domestic paints generally have high oil absorption values ​​and are not suitable for use in water-based systems. Even if some of them can be used, there are often cases where the color saturation is not enough, and the quality of domestic inks is affected. The connecting material in the ink and water is an aqueous polymer emulsion or a water-dispersible resin. In the past, rosin-modified maleic acid resin was generally used as a connecting material for carton ink, but for medium-to-high-grade printing, gloss and transfer of ink are common. The properties such as water resistance and water resistance are all insufficient. Nowadays, water-soluble acrylic copolymer resins are commonly used as ink and ink binders at home and abroad, due to their luster, weather resistance, heat resistance, water resistance, chemical resistance, and contamination resistance. The significant advantages of the product make it capable of exhibiting excellent performance regardless of direct dispersion or synthesis of polymer emulsions, but the quality and instability of domestic acrylic resins and polymer emulsions will naturally affect the quality stability of the ink. Based on this situation, most domestic manufacturers also use imported acrylic resins and emulsions. Although the quality is stable, but due to the impact of the supply period and the price, it also caused trouble to the operation of the ink factory. Fortunately, many manufacturers have recognized this and solved the problems themselves. For example, the polymer emulsion developed by the company itself is close to the level of internationally renowned companies such as SC Johnson in terms of ink transfer, re-solubility, transparency, and brightness, which not only maintains quality, reduces costs, but also addresses the domestic market. The need to make adjustments. Therefore, although the quality of domestic ink paintings needs to be improved, it can basically meet the requirements of the domestic market. The fact is that ink painting in China is "acclaimed", which is mainly due to the development of flexographic printing in China and the environmental awareness of the Chinese people.
In the past decade, flexographic printing has been rapidly developed worldwide. The quality of printed products has reached or approached the level of gravure and offset printing, and has obvious advantages in improving the environment. Developed countries in Europe and the United States are considered to be “the best and most promising printing methods on the planetâ€. Domestic manufacturers have also seen the advantages of flexo printing. In recent years, more than 100 narrow-width flexographic printing production lines have been imported from abroad, together with domestic production of flexo lines, totaling no less than 150.
However, at the same time that China introduced "hardware", it ignored the progress of "software." There are first-rate flexo presses, imported plates, and qualified inks are not acceptable. The key is to combine these three elements organically and integrate them. If a link is not done well, no good product can be printed.
Most of the plates used by domestic manufacturers are products of companies such as 3M and DuPont. The quality of the plates is not a problem, but the level of domestic plates is uneven and the prices are higher (the plate price is 0.15 yuan/CM, the plate-making cost is 0.9 yuan / CM), the level of cheap and dare not guarantee, so many manufacturers make their own plates, the technical aspects of plate-making are ignored. For example, if the color gradation is insufficient, fine patterns and large blocks are made on a single plate, media patterns and printing pressure cannot be well transitioned, and the edges are not sufficiently detailed. As a result, the printed product has uneven color, thin lines, stencils, and hairiness on the edges. Since it is finally reflected by ink, it is hoped that the ink factory will solve these problems. As a result, the problem has not been resolved and the ink factory has been brought to bear. A lot of pressure.
Flexographic printing presses are more complex than offset and gravure printing operations. Many situations rely on experience, such as tension control, pressure control, register control, matching of the number of anilox roller lines and the number of print lines, and so on. The requirements of personnel are very high. They also need to understand ink and wash. They cannot adjust ink and ink with the concept of traditional inks. They must understand the function and use of ink additives. They must master the influence and adjustment methods of ink viscosity and pH. The reality is that flexo printing was developed late in China, and the equipment suppliers' training for printing plants is not enough. Operators must rely on themselves to explore slowly. While the ink plants help solve the problem, they are not comprehensive enough. If the operator of the flexo press can immediately find out the cause of the printed matter and think of the solution, the flexographic printing industry will develop faster in our country and at the same time, it will also promote the common progress of the ink and wash.
Third, the development of water-based coating oil by reducing costs and environmental protection Water-based coating oil in the domestic development than the ink quickly, because it not only has the advantages of environmental protection, but also a wide range of uses, easy to use, it is generally agreed with the printing manufacturers.
Water-based coating oils have a wide range of applications: besides for coating machines, flexo printing machines, and gravure printing machines, they can also be used for offset printing machines. In fact, waterborne varnish is a new product type evolved from ink. Compared with the two, in addition to the difference in color and gloss, there are many similar characteristics, but different characteristics of the water-based coating oil can give different uses and advantages of printed products, while making up for ink and ink performance defects. Specifically speaking, it can not only increase the gloss, improve the abrasion resistance, and protect the safety and environmental protection of cigarettes, wine labels, medicine boxes, food packaging bags, and playing cards, but also can prevent the printing of products according to different requirements. Oil anti-alkali, high temperature resistance, baking resistance, anti-solvent and other functions. Therefore, waterborne varnish has attracted worldwide attention.
In China's glazing oil market, with the exception of UV glazing, which accounts for a fixed share, waterborne glazing and solvent glazing each account for half of the market.
Waterborne varnish is a polymer emulsion formed by high-performance emulsion polymerization of functional glossy synthetic resins and other functional monomers. It uses water as solvent, non-toxic and odorless, strong transparency, strong abrasion resistance, fast conjunctiva speed, rapid drying, good flatness, convenient storage and safe use, and can also produce different effects according to functional resins. Moreover, the price of water-based varnishes is reasonable: imports are 40-50 yuan / kg, domestically produced 30-40 yuan / kg. However, domestic manufacturers still believe that the price is high, and many prefer solvent coatings.
The solvent varnish appeared earlier in the country, and its production process is simple. Most of it is made of organic monomers dispersed into a viscous, transparent liquid through a solvent, or directly made of synthetic resin through the dissolution of alcohols, the price is slightly lower than the waterborne Varnish, but often ignored by domestic manufacturers, solvent varnish coating area is twice the amount of water based varnish, therefore, in fact, the actual cost of waterborne varnish is lower than solvent varnish. Moreover, solvent varnish can be qualified in terms of the quality of “glazingâ€, but other aspects are not comprehensive, and alcohols are organic volatiles, although not as contaminating and toxic as benzene in inks. But it will also affect the environment and human health. Taking the United States as an example, the United States Environmental Protection Agency (EPA) has proposed restrictions on the content of organic volatiles in inks and coatings. This restriction will become more stringent over time. At present, the use of solvent in the United States is reduced from 80% to 20%. A research report of the National Printing Association (PIA) further pointed out that in order to comply with the environmental claims and decrees, the ink and coating manufacturers will make greater efforts in their products toward both water and UV.
Therefore, objectively speaking, the market prospects of domestic waterborne varnish are better. Obstacles still exist because of increased environmental awareness and lower product prices. After all, Varnish is only a "supporting role" in the printed matter, but it is only a modification of the printed product. The “reasonable price†mentioned in the previous paragraph is that if the quality of the domestic-made functional synthetic resin can be used as an alternative to the UV varnishes, the price of the water-based varnishes can be reduced to 20 to 30 yuan/kg in two to three years. . (Recently, the company has developed and produced 25 yuan/kg of water-based coating.) In this way, the market for water-based coating oil will be even broader.
Conclusions In conclusion, in the domestic market, the prospects for the development of ink and water-based varnishes are unanimously optimistic. We believe that with the improvement of technology, people’s awareness of environmental protection will increase as long as the environmental protection department, printing companies, and materials and equipment supply With concerted efforts, ink and water-based coating oils will surely get healthy and rapid development in China, and will make greater contributions to the printing industry in China.
While prints enrich and beautify our lives, they also cause damage and pollution to the environment in which we live. A considerable part of this is due to printing inks. Therefore, under the premise of excellent performance, ink and water-based varnishes with environmental characteristics have begun to receive attention from the domestic printing industry.
Second, the development of ink and wash rely on technological progress and promote the use of ink from the aqueous polymer emulsion, insoluble pigments, surfactants and related additives by the chemical process and physical mixing prepared. Suitable for flexo and gravure printing.
Compared with ink, ink and ink have no adverse effects on the health of printing press operators due to their non-volatile and toxic organic solvents. They have no pollution to the atmosphere and no pollution to the printed matter itself; The characteristics of the ink, compared to the ink, can eliminate the flammable and explosive hidden dangers in the printing shop, which is conducive to safe production. Of course, the scope of application of ink and ink is not the same, ink is mainly offset, ink is mainly flexo, and gravure and screen printing share. In developed countries such as Europe, America, Japan, etc., ink has gradually replaced ink, becoming a special ink for printing methods other than offset printing. In the United States, 95% of flexographic prints use ink and 80% of gravure prints use ink.
In addition to environmental protection, ink and wash ink in foreign countries, its performance is also very superior: the ink is stable, high brightness, strong coloring, does not corrode plates, strong adhesion after printing, adjustable drying speed, strong water resistance, four-color overprint and special Color printing can be used. Ink ink started late in China, but it has developed rapidly. Especially in recent years, it has been developing at a rapid rate. With the increase in the demand for ink and wash, the quality of domestic ink painting has also been improved. In the traditional sense, ink ink has the disadvantages of slow drying, poor gloss, ineffable water, and imprecise printing, which have been significantly improved. Like the ink provided by this company, it is close to the international advanced level. In the case of high prices of imported ink, the cheap Chinese-made ink has gradually occupied the market, but we should also clearly understand that domestic ink is not as good as the imported ink and ink in terms of chroma, luster and stability, and is in the high-net line. The gap in the registration is even more pronounced.
This is mainly the gap between pigments and binders. Domestic paints generally have high oil absorption values ​​and are not suitable for use in water-based systems. Even if some of them can be used, there are often cases where the color saturation is not enough, and the quality of domestic inks is affected. The connecting material in the ink and water is an aqueous polymer emulsion or a water-dispersible resin. In the past, rosin-modified maleic acid resin was generally used as a connecting material for carton ink, but for medium-to-high-grade printing, gloss and transfer of ink are common. The properties such as water resistance and water resistance are all insufficient. Nowadays, water-soluble acrylic copolymer resins are commonly used as ink and ink binders at home and abroad, due to their luster, weather resistance, heat resistance, water resistance, chemical resistance, and contamination resistance. The significant advantages of the product make it capable of exhibiting excellent performance regardless of direct dispersion or synthesis of polymer emulsions, but the quality and instability of domestic acrylic resins and polymer emulsions will naturally affect the quality stability of the ink. Based on this situation, most domestic manufacturers also use imported acrylic resins and emulsions. Although the quality is stable, but due to the impact of the supply period and the price, it also caused trouble to the operation of the ink factory. Fortunately, many manufacturers have recognized this and solved the problems themselves. For example, the polymer emulsion developed by the company itself is close to the level of internationally renowned companies such as SC Johnson in terms of ink transfer, re-solubility, transparency, and brightness, which not only maintains quality, reduces costs, but also addresses the domestic market. The need to make adjustments. Therefore, although the quality of domestic ink paintings needs to be improved, it can basically meet the requirements of the domestic market. The fact is that ink painting in China is "acclaimed", which is mainly due to the development of flexographic printing in China and the environmental awareness of the Chinese people.
In the past decade, flexographic printing has been rapidly developed worldwide. The quality of printed products has reached or approached the level of gravure and offset printing, and has obvious advantages in improving the environment. Developed countries in Europe and the United States are considered to be “the best and most promising printing methods on the planetâ€. Domestic manufacturers have also seen the advantages of flexo printing. In recent years, more than 100 narrow-width flexographic printing production lines have been imported from abroad, together with domestic production of flexo lines, totaling no less than 150.
However, at the same time that China introduced "hardware", it ignored the progress of "software." There are first-rate flexo presses, imported plates, and qualified inks are not acceptable. The key is to combine these three elements organically and integrate them. If a link is not done well, no good product can be printed.
Most of the plates used by domestic manufacturers are products of companies such as 3M and DuPont. The quality of the plates is not a problem, but the level of domestic plates is uneven and the prices are higher (the plate price is 0.15 yuan/CM, the plate-making cost is 0.9 yuan / CM), the level of cheap and dare not guarantee, so many manufacturers make their own plates, the technical aspects of plate-making are ignored. For example, if the color gradation is insufficient, fine patterns and large blocks are made on a single plate, media patterns and printing pressure cannot be well transitioned, and the edges are not sufficiently detailed. As a result, the printed product has uneven color, thin lines, stencils, and hairiness on the edges. Since it is finally reflected by ink, it is hoped that the ink factory will solve these problems. As a result, the problem has not been resolved and the ink factory has been brought to bear. A lot of pressure.
Flexographic printing presses are more complex than offset and gravure printing operations. Many situations rely on experience, such as tension control, pressure control, register control, matching of the number of anilox roller lines and the number of print lines, and so on. The requirements of personnel are very high. They also need to understand ink and wash. They cannot adjust ink and ink with the concept of traditional inks. They must understand the function and use of ink additives. They must master the influence and adjustment methods of ink viscosity and pH. The reality is that flexo printing was developed late in China, and the equipment suppliers' training for printing plants is not enough. Operators must rely on themselves to explore slowly. While the ink plants help solve the problem, they are not comprehensive enough. If the operator of the flexo press can immediately find out the cause of the printed matter and think of the solution, the flexographic printing industry will develop faster in our country and at the same time, it will also promote the common progress of the ink and wash.
Third, the development of water-based coating oil by reducing costs and environmental protection Water-based coating oil in the domestic development than the ink quickly, because it not only has the advantages of environmental protection, but also a wide range of uses, easy to use, it is generally agreed with the printing manufacturers.
Water-based coating oils have a wide range of applications: besides for coating machines, flexo printing machines, and gravure printing machines, they can also be used for offset printing machines. In fact, waterborne varnish is a new product type evolved from ink. Compared with the two, in addition to the difference in color and gloss, there are many similar characteristics, but different characteristics of the water-based coating oil can give different uses and advantages of printed products, while making up for ink and ink performance defects. Specifically speaking, it can not only increase the gloss, improve the abrasion resistance, and protect the safety and environmental protection of cigarettes, wine labels, medicine boxes, food packaging bags, and playing cards, but also can prevent the printing of products according to different requirements. Oil anti-alkali, high temperature resistance, baking resistance, anti-solvent and other functions. Therefore, waterborne varnish has attracted worldwide attention.
In China's glazing oil market, with the exception of UV glazing, which accounts for a fixed share, waterborne glazing and solvent glazing each account for half of the market.
Waterborne varnish is a polymer emulsion formed by high-performance emulsion polymerization of functional glossy synthetic resins and other functional monomers. It uses water as solvent, non-toxic and odorless, strong transparency, strong abrasion resistance, fast conjunctiva speed, rapid drying, good flatness, convenient storage and safe use, and can also produce different effects according to functional resins. Moreover, the price of water-based varnishes is reasonable: imports are 40-50 yuan / kg, domestically produced 30-40 yuan / kg. However, domestic manufacturers still believe that the price is high, and many prefer solvent coatings.
The solvent varnish appeared earlier in the country, and its production process is simple. Most of it is made of organic monomers dispersed into a viscous, transparent liquid through a solvent, or directly made of synthetic resin through the dissolution of alcohols, the price is slightly lower than the waterborne Varnish, but often ignored by domestic manufacturers, solvent varnish coating area is twice the amount of water based varnish, therefore, in fact, the actual cost of waterborne varnish is lower than solvent varnish. Moreover, solvent varnish can be qualified in terms of the quality of “glazingâ€, but other aspects are not comprehensive, and alcohols are organic volatiles, although not as contaminating and toxic as benzene in inks. But it will also affect the environment and human health. Taking the United States as an example, the United States Environmental Protection Agency (EPA) has proposed restrictions on the content of organic volatiles in inks and coatings. This restriction will become more stringent over time. At present, the use of solvent in the United States is reduced from 80% to 20%. A research report of the National Printing Association (PIA) further pointed out that in order to comply with the environmental claims and decrees, the ink and coating manufacturers will make greater efforts in their products toward both water and UV.
Therefore, objectively speaking, the market prospects of domestic waterborne varnish are better. Obstacles still exist because of increased environmental awareness and lower product prices. After all, Varnish is only a "supporting role" in the printed matter, but it is only a modification of the printed product. The “reasonable price†mentioned in the previous paragraph is that if the quality of the domestic-made functional synthetic resin can be used as an alternative to the UV varnishes, the price of the water-based varnishes can be reduced to 20 to 30 yuan/kg in two to three years. . (Recently, the company has developed and produced 25 yuan/kg of water-based coating.) In this way, the market for water-based coating oil will be even broader.
Conclusions In conclusion, in the domestic market, the prospects for the development of ink and water-based varnishes are unanimously optimistic. We believe that with the improvement of technology, people’s awareness of environmental protection will increase as long as the environmental protection department, printing companies, and materials and equipment supply With concerted efforts, ink and water-based coating oils will surely get healthy and rapid development in China, and will make greater contributions to the printing industry in China.
Model: 28Pcs Dinner Set
Material: Glass
Color: plain white or with decal
Process: press process
Our Opal Glassware is milk-color,odourless,breakage-proof,heat-resistant, microwave-safe,easy-wahsing etc. They can be used in microwave oven and dish-washer. What`s more, it is stronger than ceramics and it can bear radical temperature variation and is healthy to people.
Nowadays the opal glassware is considered as the newest substitutes for traditional ceramics. They are very popular as houseware, hotel supply and gifts. Welcome domestic and foreign customers to cooperate with us. We can offer you good quality with competitive price and upmost service.
28Pcs Dinner Set, Opal Dinner Set
Jiangsu Yuefeng Technology CO.,LTD , http://www.jiangsuyuefengjingci.com