Early gilding is not popular Hot pad printing technology is commonly called bronzing. The early gilding industry is not much in print. The reason can be summarized as follows: First, bronzing machines are still on small machines in the 1970s, such as manual bronzing. Machine, 13 inch × 18 inch Heidelberg throat machines, and smaller flat flat stamping machine. At that time, if there was a large area or bronzing in the field, they could not be hot-pressed. There were multiple versions of the paper and a large amount of paper to be quasi-adjusted. Also, the large paper was finely sliced ​​before it could be gilded, resulting in slow bronzing and slow positioning. , to the printer troubled. At that time, most of them were hot stamped hardcover cases, book covers, covers, envelopes, letterheads, greeting cards, etc., and hot box printing was not popular. The second reason is that due to the fact that hot stamping is not popular, it was not promoted until the early 1980s when local companies introduced large-scale hot stamping machines in Japan, such as escaping machines. After the promotion, the printing merchants can see the hot stamping full sheet, the nesting is accurate, and the goods are fast, so they have the ability to receive the hot stamping of large area orders; and even more fully introduce the Heidelberg hot stamping machine to make the hot stamping industry more flourishing. Until now, the demand for bronzing of printing and packaging has increased.
A wide variety of bronzing machines are actually seemingly simple, but they have their knowledge. The bronzing industry can be briefly divided into paper stamping and plastic stamping. The machinery in the two types of industries is also different.
Paper gilding machinery can be roughly divided into:
First, manual small hot stamping machine, only small size paper can be hot stamping.
Second, flat pressing hot stamping machine, this model has a variety of sizes, from small to hot size of the size of the folio paper, with a computer program to pull the gold foil, the speed is slow, the process is mostly manual operation.
Third, manual-type beer box-type hot stamping machine, this type of machine is similar to manual beer box machine, the size can be hot stamped to 28 inch × 40 inch paper, the process is also mostly manual operation, the speed is relatively slow, rarely used in Hong Kong.
Fourth, Heidelberg automatic rolling gilding machine, Heidelberg letterpress printing machine can be said to be the oldest top machine. This hot stamping machine was actually refitted from a letterpress machine. Now that letterpress printing has been replaced by offset printing, the machine factory has used its brains to convert it into a fully automatic hot stamping machine. This is mainly to convert part of the dial into heat. The board and the place where the bronzing plate is installed, and a gold-recovery paper component is installed. This machine has a good effect on hot lines and large fields.
Fifth, flat automatic hot stamping machine, similar to automatic beer box machine, the price is more expensive, not many users, but the speed is the fastest models, hot stamping area is also larger.
6. Automatic air hose hot stamping machine, modified by Heidelberg live version of wind throat machine, paper size of 13 inches by 18 inches, fast speed, is the necessary tool for the production of most of the early hot stamping plants.
The gold foil needs to cooperate with the material in addition to the hot stamping machine, but also has the cooperation of hot foil, and the hot foil may seem thin. In fact, it consists of five layers of materials.
Many people have misunderstood that a kind of gold foil can be used to iron any kind of paper products. In fact, many kinds of gold foil are used to match different types of hot materials, such as PP film or polished paper products, metallic ink, cloth, PVC glue, etc. Hot and thin line stripe or large field and other materials and printed materials, must choose different materials of hot gold foil to cooperate. Therefore, the price of flashing hot stamping foils ranges from RMB 10 to RMB 1,000. It also depends on the nature of the country of origin and the material. The price of matt-colored ironing cloth and scratchable gold foil is about 700, and that of laser foil is RMB 1,000. . Gold foil manufacturers have manufactured 10 kinds of gold foils of different colors and different qualities to suit different paper products. On a scale, a well-managed hot stamping factory also makes samples of hot stamped gold foils and additional numbers for customers' selection. Customers can also designate a brand. Hot stamping foils, such as the international toy company "Barbie" dolls, will specify a certain brand, a certain number of gold foil.
The use of different plates followed by hot stamping plates, commonly known as electroplates, was widely used in Hong Kong and had a long history. In the early days of printing, there were so-called typefaces, which were used in letterpress printing and were subsequently used in bronzing. The later letterpress printing was converted to electroplate (ZINC zinc was used as the plate material), and the bronzing industry followed it. In recent years, Hong Kong has also begun to use the magnesium version (Magnesium magnesium as the plate material). The magnesium plate has a variety of thicknesses, and the thicker ones can be etched (Photeched) and deeper. They are used for hot stencils, patterning or impact/striking. (embossing/debossing), the effect will be better, and because it is more durable, the large number of hot stamping does not have to be changed frequently. Another copper alloy (copperalloy) as a plate material, because the hardness is stronger than zinc, magnesium, can retain a better image level, high-definition, reduce the molding surface sand, impress millions of stone can also be. The above materials made of zinc, magnesium and copper alloys are suitable for single-layer hot stamping and punching. (singlelevel, bevelledengraving).
There is also a brass plate (composed of copper, tint and lead) with a thickness of about 7mm. It has a low hardness and can be carved. It is suitable for hand-carving and motor engraving. It is regarded as an engraving plate with distinct layers and is multi-layered. Multi-level, sculptured engraving for special beveled engraving, can be used for punching/debossing, embossing, three-dimensional embossing, or one-time hot stamping with convex/concave, also due to the complicated manufacturing process. The price is very expensive, and depends on the complex requirements of the graphic to determine the price, and the copper plate needs to be carved in foreign countries. There are no manufacturers in Hong Kong for the time being.
Hot stamping Attention to temperature and pressure If you want a good effect of bronzing, you must have a suitable gold foil with good thermal stability, and you must also cooperate with the gilding machine. For example, flat pressing and rolling have different effects, and the temperature and pressure should be matched. With the duration of the hot pressing element.
Temperature - The most suitable temperature for bronzing operations is the ability to imprint a clear texture at the lowest possible level. The platen stamping machine has a heating plate temperature of about 110°C, and a roll-type stamping machine has a temperature of 140°C to 150°C. The most suitable temperature is to be found in the test mode. Excessive temperatures will change the foil stamping paper. Bad and blurred lines.
The pressure-pressure depends on the hardness of the material and the texture of the surface. Surface smooth or soft material, lighter pressure, rough or hard, it can be heavier pressure. The flat pressing hot stamping machine is the synchronous hot pressing of the whole sheet. The hot line of the hot rod machine is the line pressure and then the flat pressure. The rolling machine is similar to the line pressure of the Koo machine.
Stoppage time - based on the shortest possible effect of hot stamping, the time is too long, the gold foil and the hot stamped paper are damaged, and the flash foil will become a matte foil.
There are also patterns to be hot stamping and printing pattern sets are accurate, when using a rolling hot stamping machine or a large area of ​​hot stamping, there is a need to foil the negative film film first reduced to 99.8% to 99.7%, before the arrangement of electricity Edition, so that the electric version is heated and swelled on the heating plate. It turns out that the current scratch-off raffle tickets can also be made using the bronzing method.
The price of bronzing depends on which type of gold foil is used, whether gold foil is wasted, the degree of closure, type of layout, quantity, size, and so on. Therefore, there is no standard calculation method for uniform quotation.
When talking with Mr. Huang Weiqiang of Xinghui Bronzing Screen Printing Co., Ltd., he asked three questions and hoped that experienced people could enlighten me. First, in the case of hot-printing cloth husks, although it has been pressed deeply, hot-foil foils are easily detached.
Second, the printed matter that has passed UV is not hot on gold foil.
Third, try to burn many types of gold foil, embossed on black prints (such as printed cardboard, thin paper, black or full-colored leather paper and hot black foil, will be in a very short time ( For 3 or 4 days or for a longer period of time (3 to 4 months), the shadows will gradually appear, and as time goes by, the more they appear, (the gold foil agents say that they are related to printing ink carbon molecules, so they cannot Guarantee that gold foil will not change with the print).
A wide variety of bronzing machines are actually seemingly simple, but they have their knowledge. The bronzing industry can be briefly divided into paper stamping and plastic stamping. The machinery in the two types of industries is also different.
Paper gilding machinery can be roughly divided into:
First, manual small hot stamping machine, only small size paper can be hot stamping.
Second, flat pressing hot stamping machine, this model has a variety of sizes, from small to hot size of the size of the folio paper, with a computer program to pull the gold foil, the speed is slow, the process is mostly manual operation.
Third, manual-type beer box-type hot stamping machine, this type of machine is similar to manual beer box machine, the size can be hot stamped to 28 inch × 40 inch paper, the process is also mostly manual operation, the speed is relatively slow, rarely used in Hong Kong.
Fourth, Heidelberg automatic rolling gilding machine, Heidelberg letterpress printing machine can be said to be the oldest top machine. This hot stamping machine was actually refitted from a letterpress machine. Now that letterpress printing has been replaced by offset printing, the machine factory has used its brains to convert it into a fully automatic hot stamping machine. This is mainly to convert part of the dial into heat. The board and the place where the bronzing plate is installed, and a gold-recovery paper component is installed. This machine has a good effect on hot lines and large fields.
Fifth, flat automatic hot stamping machine, similar to automatic beer box machine, the price is more expensive, not many users, but the speed is the fastest models, hot stamping area is also larger.
6. Automatic air hose hot stamping machine, modified by Heidelberg live version of wind throat machine, paper size of 13 inches by 18 inches, fast speed, is the necessary tool for the production of most of the early hot stamping plants.
The gold foil needs to cooperate with the material in addition to the hot stamping machine, but also has the cooperation of hot foil, and the hot foil may seem thin. In fact, it consists of five layers of materials.
Many people have misunderstood that a kind of gold foil can be used to iron any kind of paper products. In fact, many kinds of gold foil are used to match different types of hot materials, such as PP film or polished paper products, metallic ink, cloth, PVC glue, etc. Hot and thin line stripe or large field and other materials and printed materials, must choose different materials of hot gold foil to cooperate. Therefore, the price of flashing hot stamping foils ranges from RMB 10 to RMB 1,000. It also depends on the nature of the country of origin and the material. The price of matt-colored ironing cloth and scratchable gold foil is about 700, and that of laser foil is RMB 1,000. . Gold foil manufacturers have manufactured 10 kinds of gold foils of different colors and different qualities to suit different paper products. On a scale, a well-managed hot stamping factory also makes samples of hot stamped gold foils and additional numbers for customers' selection. Customers can also designate a brand. Hot stamping foils, such as the international toy company "Barbie" dolls, will specify a certain brand, a certain number of gold foil.
The use of different plates followed by hot stamping plates, commonly known as electroplates, was widely used in Hong Kong and had a long history. In the early days of printing, there were so-called typefaces, which were used in letterpress printing and were subsequently used in bronzing. The later letterpress printing was converted to electroplate (ZINC zinc was used as the plate material), and the bronzing industry followed it. In recent years, Hong Kong has also begun to use the magnesium version (Magnesium magnesium as the plate material). The magnesium plate has a variety of thicknesses, and the thicker ones can be etched (Photeched) and deeper. They are used for hot stencils, patterning or impact/striking. (embossing/debossing), the effect will be better, and because it is more durable, the large number of hot stamping does not have to be changed frequently. Another copper alloy (copperalloy) as a plate material, because the hardness is stronger than zinc, magnesium, can retain a better image level, high-definition, reduce the molding surface sand, impress millions of stone can also be. The above materials made of zinc, magnesium and copper alloys are suitable for single-layer hot stamping and punching. (singlelevel, bevelledengraving).
There is also a brass plate (composed of copper, tint and lead) with a thickness of about 7mm. It has a low hardness and can be carved. It is suitable for hand-carving and motor engraving. It is regarded as an engraving plate with distinct layers and is multi-layered. Multi-level, sculptured engraving for special beveled engraving, can be used for punching/debossing, embossing, three-dimensional embossing, or one-time hot stamping with convex/concave, also due to the complicated manufacturing process. The price is very expensive, and depends on the complex requirements of the graphic to determine the price, and the copper plate needs to be carved in foreign countries. There are no manufacturers in Hong Kong for the time being.
Hot stamping Attention to temperature and pressure If you want a good effect of bronzing, you must have a suitable gold foil with good thermal stability, and you must also cooperate with the gilding machine. For example, flat pressing and rolling have different effects, and the temperature and pressure should be matched. With the duration of the hot pressing element.
Temperature - The most suitable temperature for bronzing operations is the ability to imprint a clear texture at the lowest possible level. The platen stamping machine has a heating plate temperature of about 110°C, and a roll-type stamping machine has a temperature of 140°C to 150°C. The most suitable temperature is to be found in the test mode. Excessive temperatures will change the foil stamping paper. Bad and blurred lines.
The pressure-pressure depends on the hardness of the material and the texture of the surface. Surface smooth or soft material, lighter pressure, rough or hard, it can be heavier pressure. The flat pressing hot stamping machine is the synchronous hot pressing of the whole sheet. The hot line of the hot rod machine is the line pressure and then the flat pressure. The rolling machine is similar to the line pressure of the Koo machine.
Stoppage time - based on the shortest possible effect of hot stamping, the time is too long, the gold foil and the hot stamped paper are damaged, and the flash foil will become a matte foil.
There are also patterns to be hot stamping and printing pattern sets are accurate, when using a rolling hot stamping machine or a large area of ​​hot stamping, there is a need to foil the negative film film first reduced to 99.8% to 99.7%, before the arrangement of electricity Edition, so that the electric version is heated and swelled on the heating plate. It turns out that the current scratch-off raffle tickets can also be made using the bronzing method.
The price of bronzing depends on which type of gold foil is used, whether gold foil is wasted, the degree of closure, type of layout, quantity, size, and so on. Therefore, there is no standard calculation method for uniform quotation.
When talking with Mr. Huang Weiqiang of Xinghui Bronzing Screen Printing Co., Ltd., he asked three questions and hoped that experienced people could enlighten me. First, in the case of hot-printing cloth husks, although it has been pressed deeply, hot-foil foils are easily detached.
Second, the printed matter that has passed UV is not hot on gold foil.
Third, try to burn many types of gold foil, embossed on black prints (such as printed cardboard, thin paper, black or full-colored leather paper and hot black foil, will be in a very short time ( For 3 or 4 days or for a longer period of time (3 to 4 months), the shadows will gradually appear, and as time goes by, the more they appear, (the gold foil agents say that they are related to printing ink carbon molecules, so they cannot Guarantee that gold foil will not change with the print).
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