The gilding process on the edge of the card, Zhanfeng smart card can be customized.
- Author Mary Ouyang
- Published October 14, 2020
- Word count 1,994
A brief introduction to the stamping process on the edge of the card.
Card edge hot stamping is the desired color on the card cutting surface hot stamping. Most of the conventional hot stamping needs on the market are the positive or negative side of the card. Combined with the market demand, we have developed a card edge hot stamping process, which can now be mass customized. Welcome to send order consultation!
Nine problems in bronzing process and their solutions.
First, the hot stamping is not firm.
There are many reasons for weak hot stamping. To sum up, there are three main reasons.
When the hot stamping temperature is low or the pressure is light, the hot stamping temperature and pressure can be readjusted.
In the printing process, due to the excessive amount of dry oil added to the ink, the surface of the ink layer dries too quickly to produce crystallization, so that the hot stamping foil can not be hot stamped. The solution is to prevent crystallization as far as possible during printing, and secondly, after crystallization, you can remove the hot stamping foil, air-press the print under heating, destroy the crystallization layer, and then hot stamping.
Adding waxy desalination agents, anti-sticking agents or non-dry oily substances to the ink will also produce hot stamping. The solution is to first stick a layer of absorbent paper on the printing plate and press it again, adsorb the wax on the background ink layer, and then carry out hot stamping operation.
Second, the hot stamped pictures and text are empty and dizzy.
Hot stamping process, found that the picture and text virtual, dizzy fault, mainly hot stamping temperature is too high, gilding paper coking and other reasons. If the hot stamping temperature of the printing plate is too high, so that the hot stamping paper film exceeds the limit it can bear, and at this time the hot stamping paper film will expand around, resulting in halo and vacuity, then the temperature must be adjusted to an appropriate range according to the characteristics of the hot stamping paper. For the coking of the hot stamping paper, the main reason is that the machine stops for too long in the hot stamping process, so that a certain part of the gilding paper will come into contact with the electrothermal high temperature printing plate for a long time, and the picture and text will be dizzy after hot stamping. Therefore, if there is a shutdown in the production process, the temperature should be lowered, or the gilding paper should be removed, and a piece of thick paper can also be put in front of the higher temperature printing plate to isolate the gilding paper from the printing plate.
III. Blurred handwriting and blurred version.
The main reason for this failure is that the hot stamping temperature is too high, the coating of the hot stamping paper is too thick, the stamping force is too large, and the installation of the hot stamping paper is lax. Corresponding measures should be taken to solve the problem according to the specific situation. Hot stamping temperature is too high is the main cause of illegible handwriting and paste plate, hot stamping process, if the printing plate temperature is too high, resulting in film base and other film transfer, adhesion, resulting in illegible handwriting and paste version. When hot stamping, the hot stamping temperature should be lowered appropriately according to the applicable temperature of the hot stamping paper. In addition, thin coated gilding paper should be selected, the appropriate pressure should be adjusted, and the pressure and tension of the reel drum should be adjusted appropriately.
IV. The edge of the picture and text is uneven and unclear.
The main performance is that when hot stamping, rough edges occur on the edge of the picture and text, which affects the printing quality. The main reasons for this phenomenon are: the pressure of the printing plate is uneven, mainly because the layout is uneven, causing uneven pressure everywhere in the layout, some pressure is too large, some are too small, so that the force of the picture and text is uneven, then the surface of the hot stamping hot stamping paper is not smooth, and the adhesion between each part and the substrate is not the same, resulting in uneven imprinting. Therefore, the hot stamping plate must be flat and solid, to ensure that the hot stamping pressure is uniform, in order to ensure that the picture and text is clear. In addition, if the hot stamping plate pressure is too high, it can also cause uneven imprinting. In the process of hot stamping, it is necessary to adjust the hot stamping pressure to an appropriate degree. To ensure that the pad of the printing press should be accurately fitted according to the area of the pattern, do not shift, do not move. In this way, in order to ensure that the picture and text coincide with the cushion layer when hot stamping, and avoid hair around the picture and text. Also, the pressure of the same plate is uneven after hot stamping. This is because there is a great disparity in the size of the picture and text area, so the pressure of the large area should be increased, and the pressure of the size area can be corrected and adjusted by the paper cushion method to make it equal. Finally, if the hot stamping temperature is too high, it will also cause uneven imprinting. Therefore, according to the characteristics of the gilding paper, the hot stamping temperature of the printing plate should be reasonably controlled in order to ensure that the four sides of the picture and text are smooth, smooth and hairless.
- The imprinting of the picture and text is incomplete and irregular, and there is a lack of pen to break the strokes.
This fault is mainly caused by the speed of gilding paper, printing plate and so on. For example, the printing plate is damaged or deformed, which is one of the important reasons for the incomplete imprinting of picture and text. Therefore, if the printing plate is found to be damaged, the printing plate should be repaired or replaced immediately. The deformation of the printing plate makes the printing plate unable to withstand the hot stamping pressure, so the printing plate should be replaced and the pressure should be adjusted. If the gilding paper cutting and conveying deviation, the gilding paper horizontal cutting edge is too small or cutting skew when conveying deviation, it will make the gilding paper and printing plate picture and text does not match, part of the picture and text exposed, resulting in incomplete. In order to prevent such problems, when cutting the ironing paper, make it neat and smooth, and appropriately increase the size of the edge. Gilding paper conveying speed and tightness improper will also produce this kind of fault. The gilding paper receiving device is loosened or loosened between the core and the reel, the unwinding speed changes, and the tightness of the gilding paper changes, which deviates the position of the picture and text and causes the picture and text to be incomplete. At this time, it is necessary to adjust the winding and unwinding position, and if the bronzing paper is too tight, the pressure of the pressing drum and the pulling force of the reeling drum should be properly adjusted to ensure a suitable speed and tightness. Hot stamping materials and hot stamping materials are uncomfortable or too much powder spraying during printing will also occur this kind of fault, we should pay attention to adjustment. In addition, the part of the printing plate moves and falls in the position of the base plate, and the gasket of the imprinting mechanism shifts, which changes the normal hot stamping pressure, which is uneven, which will cause incomplete imprinting of picture and text. If the pressure is too light, the pressure can be increased. Therefore, in the hot stamping process of hot stamping paper, the hot stamping quality should be inspected frequently, the quality problems should be analyzed immediately, and the printing plate and backing should be checked. If you find that the printing plate moves or the backing shifts, adjust it in time and put the printing plate and backing back in place.
- Hot stamping can not be done or pictures and texts are blossomed.
The main reasons for hot stamping are: 1, the hot stamping temperature is too low, the printing plate hot stamping temperature is too low to reach the minimum temperature required for anodized aluminum foil to be separated from the film base and transferred to the substrate, hot stamping paper is not completely transferred, resulting in picture and text blooming, exposure or hot stamping.
If you find this kind of quality problem, you should increase the temperature of the electric hot plate in time until the intact print is printed. 2. The pressure of hot stamping is low. In the process of hot stamping, if the hot stamping pressure of the printing plate is too small and the pressure applied to the anodized aluminum foil is too light, the hot stamping paper can not be transferred smoothly, making the hot stamping picture and text incomplete. Found that this situation should first analyze whether the hot stamping pressure is small, external observation of the weight of imprint marks, if the hot stamping pressure is small, hot stamping pressure should be increased. 3. The background color is too dry and the surface is crystallized, so that the hot stamping paper can not be hot stamped. When hot stamping, the dryness of the background color can be printed immediately within the printable range. When printing background color, the ink layer should not be too thick, when the printing volume is large, it is necessary to print in batches and appropriately shorten the production cycle. Once crystallization is found, printing should be stopped immediately, and the printing should be continued after finding and troubleshooting. 4. The gilding paper is not of the right type or of poor quality. When the hot stamping paper model is wrong or the quality is not good, it also makes the hot stamping quality problems. At this time, the gilding paper with appropriate model, good quality and strong adhesion should be replaced. Hot stamping area of a larger substrate, can be hot stamped twice in a row, can avoid hair, exposure and hot stamping.
- Hot stamping without luster.
Most of this is because the hot stamping temperature is too high or the hot stamping pressure is too high or the hot stamping speed is too slow, so we should appropriately reduce the temperature of the electric hot plate, reduce the pressure and adjust the hot stamping speed. In addition, it is necessary to make as few empty cars as possible and reduce unnecessary parking, because empty cars and parking will raise the temperature of the electric hot plate.
- The quality of hot stamping is unstable.
Use the same material, but the hot stamping quality is good and bad. The main reasons are unstable material quality, problems with temperature control of electric hot plate or loose pressure adjusting nut. Can change the material first, if the fault remains, it may be the problem of temperature or pressure, the temperature and pressure should be adjusted and controlled successively.
- Leakage after hot stamping.
The main reason is that the pattern of the scalded object is too deep, so the pattern should be replaced; if the pressure is too small and the temperature is too low, the pressure can be increased and the temperature can be increased.
In short, hot stamping paper hot stamping failure, there are many reasons, in addition to hot stamping temperature, pressure and speed, but also pay attention to printing materials or replacement of hot stamping paper and other problems, careful analysis, in order to prescribe the right medicine, better rule out all kinds of reasons.
Guangzhou Zhanfeng Smart Card Technology Co.Ltd is one of the largest producers of RFID Hardware. It is a listed Company with over 13 years of mass production experience.
www.zfcard.comArticle source: http://articlebiz.com
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