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Analysis after printing packaging stereo bronzing process requirement
by：Lisson
2020-11-17
Analysis after printing packaging process requirement analysis of stereo bronzing printing packaging stereo bronzing process requirement after
in recent years, as people the improvement of commodity packaging appearance style and quality requirements, printing and packaging technology has made great progress and post-press processing technology is made a vigorous development, and the electrochemical aluminum hot stamping as part of the finishing, the changes in these years is huge. New technology, new technology and a variety of technology combined with appear constantly, make the packaging print after hot stamping in the glossiness, stereo feeling, metal feeling, anti-counterfeiting performance has achieved good results, especially the more and more widely used stereo stamping technology, make the packaging of goods appears upscale elegant, gorgeous and rich individual character. At present the technology is mainly used for greeting CARDS, bookmarks, trademarks, alcohol, tobacco, packaging and all kinds of high-grade packaging.
the three-dimensional hot stamping process requirements:
1) electrochemical aluminum foil electrochemical aluminum foil generally are composed of 4 ~ 5 layers of different materials, such as: the base film layer ( Polyester film) , stripping, coloring layer ( Electrochemical aluminum silver no coloring layer) , aluminized layer, adhesive layer.
the main effect of each layer is:
(1) the base film layer mainly plays a role of supporting each other.
(2) the stripping effect was to make the electrochemical aluminum foil layer separated from the grassroots, determining the metastatic electrochemical aluminum layer.
3. Coloring layer main effect is to show the colour of electrochemical aluminum and protection of the underlying. Common colors are: gold, silver, brown, shallow blue, black, red, green, etc. , including gold and silver is the most commonly used two kinds.
(4) the role of the aluminized layer is metallic luster.
(5) the role of the adhesive layer is ACTS as adhesive decoration materials.
of adhesive layer of the adhesive material is different, its adhesion is also different. In order to adapt to different properties of different surface decoration materials, electrochemical aluminum will adopt different adhesive layer, thus constitutes the different models of electrochemical aluminum.
hot stamping velocity and quality is mainly influenced by stripping and adhesive layer, if the coating on the sensitivity of the heat is not enough, the hot stamping rate will decrease accordingly. Previously, due to the limit by the velocity of heat transfer, flat to flat hot stamping speed is low, are all up to less than 5000 m /, but now some of the world's leading supplier of electrochemical aluminum production form the electrochemical aluminum have been enough to meet the requirements of the industry of hot stamping speed, Switzerland, has achieved hot stamping, hot stamping machine speed is 7500 /. Because the three-dimensional hot stamping forming is embossed pattern, temperature, speed and pressure control and ordinary bronzing has difference, so the requirement of hot stamping foil is different with ordinary bronzing, when choosing hot stamping foil should choose stereo bronzing special hot stamping foil, and ordinary hot stamping foil can not be used as a stereo bronzing, otherwise it will produce stamping quality is bad, or other unexpected phenomenon.
2
temperature, pressure, speed of temperature, pressure and velocity are the three main factors of hot stamping technology, only the relations between and among good control, to control the quality of hot stamping, stereo bronzing. Because of stereo bronzing is a complete hot stamping and concave-convex embossing, the requirement of temperature is higher, ordinary bronzing temperature as long as 70 ℃ ~ 90 ℃, while stereo bronzing at 150 ℃ or so to complete. If the temperature is too low is possible electrochemical aluminum melt adhesive layer and layer stripping is not fully, at the time of electrochemical aluminum foil cannot complete hot stamping, stamping not top or bottom. Deformation, while the temperature is too high there will be a paper to paste and the handwriting is not clear, even appear the phenomenon of electrochemical aluminum color, also may be due to the high temperature and make the hot plate to expand too much, not accurate and bottom die, stamping is undesirable. So the temperature control is the first of three main factors.
hot stamping pressure is hot stamping instant hot plate layout by pressure. After the melt in hot stamping process, electrochemical aluminum adhesive layer is accomplished by pressure electrochemical aluminum heat transfer, the size and uniformity of pressure directly affects the quality of the hot stamping. And stereo bronzing besides the electrochemical aluminum foil transfer to print surface, but also with great pressure in the hot stamping parts out stereo embossed pattern, therefore the pressure more than normal bronzing, it also requires that the strength of the hot stamping foil is better, able to withstand strong pressure of extrusion. Of course this is not to say that the greater the pressure, the better, must be appropriate, of the pressure greater than small can get nice design. Stress may be crushed hot stamping foil, even crush bottom die and stay hot print; While the pressure is too small, may produce hot stamping foil transfer incomplete or hot stamping, make the pressure bump stereo feeling of relief can not meet the quality requirements. So the pressure control is also the key.
the stamping speed is really hot stamping and contact time of electrochemical aluminum, namely electrochemical aluminum heating time. Hot stamping speed, shorter time for heating, hot stamping temperature drops quickly, caused the temperature is too low, hot stamping fastness will be affected; Hot stamping speed, heating time is long, hot stamping temperature drop slowly, hot stamping have good color fastness, but if the control is bad will cause high temperature hot stamping of failure. So the appropriate hot stamping speed is also a high quality hot stamping effect.
hot stamping and bump stamping technology is one of the traditional post-press processing technology, is the indispensable process in packaging decoration, now they are used together, not only reduced the production process, improve the production efficiency, in the quality of commodity packaging and decoration effects and has improved more on anti-counterfeiting function. So this technique showed a strong momentum of development, now with various conditions mature, it will gradually replace the original by hot stamping and concave-convex embossing pattern of two processes to form solid gold process. Stereo bronzing process will be after printing packaging decoration is very promising in the field of decoration technology. Conversion table packaging printing knowledge
in recent years, as people the improvement of commodity packaging appearance style and quality requirements, printing and packaging technology has made great progress and post-press processing technology is made a vigorous development, and the electrochemical aluminum hot stamping as part of the finishing, the changes in these years is huge. New technology, new technology and a variety of technology combined with appear constantly, make the packaging print after hot stamping in the glossiness, stereo feeling, metal feeling, anti-counterfeiting performance has achieved good results, especially the more and more widely used stereo stamping technology, make the packaging of goods appears upscale elegant, gorgeous and rich individual character. At present the technology is mainly used for greeting CARDS, bookmarks, trademarks, alcohol, tobacco, packaging and all kinds of high-grade packaging.
the three-dimensional hot stamping process requirements:
1) electrochemical aluminum foil electrochemical aluminum foil generally are composed of 4 ~ 5 layers of different materials, such as: the base film layer ( Polyester film) , stripping, coloring layer ( Electrochemical aluminum silver no coloring layer) , aluminized layer, adhesive layer.
the main effect of each layer is:
(1) the base film layer mainly plays a role of supporting each other.
(2) the stripping effect was to make the electrochemical aluminum foil layer separated from the grassroots, determining the metastatic electrochemical aluminum layer.
3. Coloring layer main effect is to show the colour of electrochemical aluminum and protection of the underlying. Common colors are: gold, silver, brown, shallow blue, black, red, green, etc. , including gold and silver is the most commonly used two kinds.
(4) the role of the aluminized layer is metallic luster.
(5) the role of the adhesive layer is ACTS as adhesive decoration materials.
of adhesive layer of the adhesive material is different, its adhesion is also different. In order to adapt to different properties of different surface decoration materials, electrochemical aluminum will adopt different adhesive layer, thus constitutes the different models of electrochemical aluminum.
hot stamping velocity and quality is mainly influenced by stripping and adhesive layer, if the coating on the sensitivity of the heat is not enough, the hot stamping rate will decrease accordingly. Previously, due to the limit by the velocity of heat transfer, flat to flat hot stamping speed is low, are all up to less than 5000 m /, but now some of the world's leading supplier of electrochemical aluminum production form the electrochemical aluminum have been enough to meet the requirements of the industry of hot stamping speed, Switzerland, has achieved hot stamping, hot stamping machine speed is 7500 /. Because the three-dimensional hot stamping forming is embossed pattern, temperature, speed and pressure control and ordinary bronzing has difference, so the requirement of hot stamping foil is different with ordinary bronzing, when choosing hot stamping foil should choose stereo bronzing special hot stamping foil, and ordinary hot stamping foil can not be used as a stereo bronzing, otherwise it will produce stamping quality is bad, or other unexpected phenomenon.
2
temperature, pressure, speed of temperature, pressure and velocity are the three main factors of hot stamping technology, only the relations between and among good control, to control the quality of hot stamping, stereo bronzing. Because of stereo bronzing is a complete hot stamping and concave-convex embossing, the requirement of temperature is higher, ordinary bronzing temperature as long as 70 ℃ ~ 90 ℃, while stereo bronzing at 150 ℃ or so to complete. If the temperature is too low is possible electrochemical aluminum melt adhesive layer and layer stripping is not fully, at the time of electrochemical aluminum foil cannot complete hot stamping, stamping not top or bottom. Deformation, while the temperature is too high there will be a paper to paste and the handwriting is not clear, even appear the phenomenon of electrochemical aluminum color, also may be due to the high temperature and make the hot plate to expand too much, not accurate and bottom die, stamping is undesirable. So the temperature control is the first of three main factors.
hot stamping pressure is hot stamping instant hot plate layout by pressure. After the melt in hot stamping process, electrochemical aluminum adhesive layer is accomplished by pressure electrochemical aluminum heat transfer, the size and uniformity of pressure directly affects the quality of the hot stamping. And stereo bronzing besides the electrochemical aluminum foil transfer to print surface, but also with great pressure in the hot stamping parts out stereo embossed pattern, therefore the pressure more than normal bronzing, it also requires that the strength of the hot stamping foil is better, able to withstand strong pressure of extrusion. Of course this is not to say that the greater the pressure, the better, must be appropriate, of the pressure greater than small can get nice design. Stress may be crushed hot stamping foil, even crush bottom die and stay hot print; While the pressure is too small, may produce hot stamping foil transfer incomplete or hot stamping, make the pressure bump stereo feeling of relief can not meet the quality requirements. So the pressure control is also the key.
the stamping speed is really hot stamping and contact time of electrochemical aluminum, namely electrochemical aluminum heating time. Hot stamping speed, shorter time for heating, hot stamping temperature drops quickly, caused the temperature is too low, hot stamping fastness will be affected; Hot stamping speed, heating time is long, hot stamping temperature drop slowly, hot stamping have good color fastness, but if the control is bad will cause high temperature hot stamping of failure. So the appropriate hot stamping speed is also a high quality hot stamping effect.
hot stamping and bump stamping technology is one of the traditional post-press processing technology, is the indispensable process in packaging decoration, now they are used together, not only reduced the production process, improve the production efficiency, in the quality of commodity packaging and decoration effects and has improved more on anti-counterfeiting function. So this technique showed a strong momentum of development, now with various conditions mature, it will gradually replace the original by hot stamping and concave-convex embossing pattern of two processes to form solid gold process. Stereo bronzing process will be after printing packaging decoration is very promising in the field of decoration technology. Conversion table packaging printing knowledge
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