Thermal Transfer Technology and Application Solutions (41-46)

41, talk about the advantages and disadvantages of special paper for sublimation

Earlier we talked about super-heat-sublimation special paper, which is mainly used for water-soluble thermal transfer inks for desktop printers. It can sublimate most of the dye-sublimation pigments onto substrates. It is increasingly being used widely. However, everything has two-sidedness. We talked about its advantages. We point out its shortcomings in several aspects: 1. Due to poor ink absorption, the surface of the paper is not easy to dry, the hand cannot touch it, and even when the room temperature is low, it cannot even print continuously. Can take a sheet to take away one; 2, this kind of paper surface has a kind of special coating, the temperature is slightly higher or meets the air to wind up, often causes the paper jam; 3, the image resolution that is transferred out is inferior to the color inkjet paper High, if the ink is not dry when transferred, it will also cause bleed, that is, the adjacent colors of the pattern are mixed together to make the image blurred.

After our long-term experiments, we have found an ink-jet paper that can absorb ink, touch it after printing, and prevent paper jams. Its transfer effect is better than that of EPSON, Prince, or other brands. Can also sublimate 70% off, fully meet the thermal transfer visual requirements, and the price is quite cheap.

42, talking about print head cleaning fluid

The continuous ink supply system is a good invention. Although printer manufacturers do not like it, they are constantly using encryption or complicated printer cartridge structures to try to delay or increase the development cost of compatible ink cartridge (cISS) manufacturers, but both The struggle is endless and it is clear that the latter is more popular. With CISS you must learn to clean your printheads yourself, in case the ink plugs come in handy. Here is a brief introduction to this basic knowledge:

The cleaning liquid is divided into dye (water) and pigment (oil, solvent, and solvent) nozzles for cleaning. The United States imported raw material configuration, good performance and stability.

The basic method of use: Pour the cleaning liquid into the container (or the printer nozzle cleaner), the height of the nozzle is just soaked, do not let the cleaning liquid contact the circuit board of the nozzle.

Let the nozzle continue to soak in the cleaning liquid for more than a few hours (better overnight) so that the cleaning fluid can function. When soaking, it can be used in conjunction with the printer nozzle cleaner to enhance the clear-through effect.

If it is necessary to perform internal sponge cleaning of the ink cartridge, heat the cleaning liquid to 60°C and pour it into the sponge body. Let the cleaning liquid melt the agglomerated ink inside. Use it with a printer nozzle cleaner and then melt the ink that has been washed by the cleaning fluid. Pull out or spin dry with a centrifuge.

The nozzle cleaning fluid is used for the cleaning of printer nozzles, ink cartridge nozzles, and inkjet printer nozzles. It is a good news for printers, printers, and remanufactured ink cartridge manufacturers.

Note: The special cleaning liquid for the print head only affects the print defects caused by the ink, such as poor printing due to impurities in inferior ink or corrosion, precipitation, etc. caused by inferior ink, and other causes. .

If you do not know ink performance or use self-aligned ink, be sure to perform an ink test before cleaning. Pour some of the ink you used in a small container. Add the cleaning solution and observe if it dissolves completely. If not, do not perform nozzle cleaning. Replace the correct type of cleaning fluid.

Note: 1. When the user removes the printer nozzle, it is necessary to turn off the printer power (unplug the socket), it is best to put anti-static ring on the hand (generally available at the electrician's tool shop), if not, touch the water pipe when you remove it. Such conductors release the body's static electricity, sometimes the human body is too high in static electricity, and it is easy to break through the mainboard components. When printing occurs, everything is normal, but there is no ink phenomenon. 2. Before the power is installed on the nozzles, make sure that the nozzles are completely dry. Otherwise, the phenomenon of burning heads can easily occur.

Tips: General desktop printer ink mostly water-based ink, the use of water-based cleaning solution; HP, Lexmark part of the printer using waterproof ink, the use of oily cleaning fluid; most domestic inkjet printers use weak solvent ink, the use of weak solvent cleaning fluid Strong solvent ink using weak solvent cleaning solution can be solved for a slightly longer treatment time. The weak solvent cleaning solution has little effect on other components of the nozzle. Strong solvent cleaning solution will wash the weak solvent ink and will affect other components of the nozzle. Therefore, it is impossible to determine the best. The use of weak solvent cleaning solution, solvent-based ink is generally more odor than water-based ink, strong solvent than the weak solvent-type flavor; most of the market thermal transfer ink must use weak solvent-based cleaning solution; solvent-based ink if the use of aqueous cleaning fluid, The nozzles will be even more severe; Epson inkjet printers must use aqueous cleaning fluids, which must be tested after the ink is used.

43. Introducing the Use of Crystal Epoxy in Personal Digital Images

With the development of the market economy, crystal signs have been used in the decoration industry and manufacturing industries. Such as trademarks, signs, badges, caps and other products. It is a modern surface decoration material, the main component of polymer transparent resin, referred to as A. There is also a group of curing catalysts, abbreviated as component B. There are two kinds of soft crystal glue and hard crystal glue. Metallic key chains, makeup mirror boxes, name card boxes and thermal transfer badges, which are personalized heat transfer accessories, can be used to increase the surface abrasion resistance, gloss, arts and crafts, three-dimensionality, and high-grade images. To improve the competitiveness of various products. You can also add pearl powder, luminous powder, etc. in the crystal glue to make it more decorative.

The specific process is as follows:

1. First, the screen printing, offset printing, printing or thermal transfer, and water transfer are placed on a leveling operation board to wait for drip.
2. According to the amount, take a clean beaker, accurate measurement, the A and B components, mixing according to the prescribed mixing ratio, some of the crystal glue according to the ratio of 2:1 ingredients, and then remove the bubbles in the mixed glue, There are two commonly used foaming methods: one is natural defoaming, and the rest is in the container for 15-30 minutes; the other is vacuum defoaming for 3-5 minutes. Note: Under the condition of low temperature, the crystal can be heated to 40°C-50°C; the viscosity of the colloid can be reduced, and bubbles can easily float out.
3. Take the clean needle tube, inject the defoamed crystal glue into the needle tube, and then measure and evenly drip on the surface of the key ring pearl plate, etc. The general thickness of the gel layer is 2mm, let it be naturally leveled .
4. After 3-5 minutes after injecting the crystal glue, observe whether there are bubbles or dust particles on the glue surface. If there are small bubbles, use a small needle to pick it off. If you find that the dead angle is not leveling the crystal glue, use a needle for extradition. can.
5. Pouring a good sign, curing at room temperature of 20°C-22°C for 10-14 hours to become a crystal sign with no surface scratches.
6. In case of stickers, trademarks, etc., the thickness itself is very thin, the boundary is not obvious, when pouring, it will easily lead to the overflow of the crystal glue. To achieve a thickness of 2mm has certain difficulties, so the system of crystal glue to grasp the different situations, control the viscosity, In the application process, it can be placed for 1-2 hours to increase the viscosity and adapt to the casting of thin crystal glue.
7. Make a crystal glue label larger than 2mm thick, which can be divided into two drops. After the first drop, cure for 3-5 hours and add one layer.
8. After the plastic drop, no matter if it is manually dripping or automatic dripping, the finished machinery, equipment and containers need to be cleaned. If the glue is hardened, it will not dissolve in any solvent, so it must be in the machine before it is hardened. Both containers need to be cleaned.

44, how to transfer film pearl plate

As mentioned earlier, pearlescent panels are divided into several categories: roll-coated pearl, plated pearl, sprayed pearlescent, and electrostatic powder-sprayed pearlescent, depending on the production process. Commonly used substrates include iron and aluminum, in addition to different thicknesses and colors. .

The film-coated pearl plate is favored by the advertising printing industry due to its good transfer effect and scratch resistance. Some manufacturers produce platen pearl plates which tend to swell or foam when transferred (small pearl plates such as makeup The mirror box panel and the metal notepad panel are not likely to come into play, and they can be directly transferred using a flat ironing machine or a pan-baking machine. Some people who have mastered the transfer film and pearl platen do not have a tendency to move. For the sake of technical secrecy, we now disclose this technique. In fact, the secret of no trend is very simple. As long as the image is transferred using a slightly modified banner machine, it will not blistering because the heat roller of the banner machine can transfer the pattern. The part of the film is pushed forward, so that the transferred part of the pearlescent film won't be heated for a long time. The principle of the banner machine is the same as that of the laminator heat-sealing photograph. This method can transfer the super-large piece of pearl film (first Use photo machine to print on reel sublimation special paper).

45, no banner machine thermal transfer film pearl plate exclusive skills

At present, our company independently develops three thickness specifications of aluminum film aluminum film, one is 0.5mm thick, one is 0.6mm thick, the other is 0.8mm thick; and two thickness iron pearlescent plate, one is 0.4mm, one is 0.7mm. There are three kinds of colors: gold pearlescent, silver pearlescent and white pearlescent. Other colors can also be customized. You can also double-sided film according to customer needs. Both sides can transfer images by thermal transfer. Where to purchase our aluminum foil and iron pearl plate, we will inform you in detail about the technical parameters of thermal transfer. The thermal transfer pearl film adopts imported chemical raw materials, and it can maintain its color for 30 years. Tablet sublimation transfer printing, it will not start or bubble.

46, related flower printing technology

The ordinary gifts of flowers, such as the language or pattern of individual blessings will add a lot of color, flower printing technology is very simple, is a curved transfer process.

Source: Guangzhou Tianheng Technology Co., Ltd.