Transfer Technology of Ceramics and Metal Products (2)

Generally speaking, the temperature can be transferred between 170-200°C, the baking time and the area of ​​the baked pattern, the coating used, the ink, the transfer paper, the ambient temperature, and the humidity all have an influence. There is no absolute formula to check. The higher the temperature, the shorter the time required. The time range is within 30-100 seconds. It should be noted that the time for printing with transfer paper and regular ink should not exceed 40 seconds.

The other one, do not apply the hard copy of the so-called print time temperature table provided by some companies, and do not completely believe in your own eyes (that is, the temperature indicated by the temperature control table is the actual temperature of the sublimation ink). , temperature control table has 1-2 °C error is normal (I tested the temperature control table measured normal body temperature measured 39 °C, the boiling water temperature was measured as 102 °C); there is a thermometer wire buried Different positions in the heating pad also cause inconsistent measurement of temperature, some separated by a layer of glass fiber cloth, and some separated by two layers, which can even cause differences of 10-20 °C. The experienced chef can smell the burnt smell of the paper with his nose to know if it is baked or not.

How to use traditional thermal transfer coating?

The method of use can be directly sprayed, hand brushed, soaked or poured on the work surface, and the coating on the work surface is drained. When it is no longer flowing, put it in an oven that has been heated to 220° C. for 5-10 minutes. , 130 °C about half an hour, if it is found that the yellow is too long, or the temperature is too high. If the transfer is sticky paper baking time is too short. Suitable for large amount of friends.
With a 1 liter coating, it can spray 8 square meters of work, or about 300 mugs.

The range of wood, metal, stone and other flat materials can withstand high temperatures up to 220 degrees and can be used for more than 10 minutes.
Production process 1, first use the detergent within the detergent to wipe the surface of the media;
2. Turn on the oven or oven while wiping the media, and let it begin to heat up.
3. Soak the cleaned medium in a coated container and apply it evenly on the surface. Then remove it and put it on a shelf to dry it. When no coating has flowed out, place it in an oven that has been warmed up to 220 degrees and let it cook for 10 minutes. Use it after it is removed.
Precautions 1. When baking a metal plate, be sure to dry it before putting it in the oven, otherwise it will blistering.

2. Coatings produced by some companies need to be mixed with two solvents in a certain proportion (ie two-component coating).

3, baking free coating does not need to enter the oven, can be dried at room temperature.

What is Teflon thermal transfer coating?

Teflon, also known as Teflon, Teflon, chemical name: Polytetrafluoroethylene (PTEE), abbreviated as F4

Teflon has the following characteristics: high resistance, low temperature resistance, corrosion resistance, non-stickiness, low friction, abrasion resistance, moisture resistance, high insulation;

In general, Teflon is extremely stable in chemical properties, and it is difficult to decompose and have low adhesion. After repeated experiments, the company has successfully applied it to the thermal transfer industry with strong acid catalysis and special treatment, and developed a two-component free baking system. The Teflon thermal transfer coating can be dry in 4 hours and complete curing cycle in 24 hours, but it takes 6 days after achieving the highest hardness, adhesion, and chemical resistance. It is also possible to accelerate the curing cycle by baking at 50°C for one hour after the film has been applied for 8 hours. This product can reduce the coating process, which is the most complicated one in the coating process, saves energy and avoids yellowing of the baked coating. It is especially suitable for coatings that cannot be baked for a long time (such as wooden jigsaw puzzles) and Mass production factory processing image cups. Its coating performance test is as follows:

Gloss (60 degrees Celsius) 85

Pencil hardness 3H

Adhesion (cut 1mm) 100/100 1

Curved 1mm without cracks without falling through

Impact resistance 50Kg.cm passed

Solvent resistance (100 times controlled wash of methyl alcohol) 160

Acid resistance 10% Hc 115 minutes No change

Salt spray resistance 2000 hours Qualified

Resistant to artificial aging 5000 hours Qualified $ page break $

Teflon thermal transfer coating instructions

Coating removal solution using method?

The coating removal solution is mainly used for printed ceramic articles, metal plate keychains, ZIP lighters, etc. It is not suitable for sports pots and pearl plates because of their special coating. When used, soaking or brushing can be used. When the damaged coating is soft, it can be wiped off with coarse cloth or paper, and then the grease can be completely removed with xylene, alcohol, or dishwashing detergent. If it is a bad porcelain plate, the porcelain cup is most easily removed when it has just finished heat. This product is highly corrosive, wear anti-corrosive rubber gloves when in use, do not touch the skin and eyes.

How to use thermochromic coating?

At present, the company is developing the following thermochromic coating: black, red, yellow, blue, can also develop the derivative colors of these colors, mainly used for mugs. When you pour hot water, the color gradually fades out to reveal the transferred pattern, and it cools and returns to its original shape.

Traditional color changing cups are pre-coated with a color-changing coating to retransfer the pattern. The disadvantage is that the traces of the transfer ink can be seen in detail because the color-changing coating is underneath; our product is first printed with a pattern and then coated, when heated The color of the coating gradually fades and the image slowly shows up. After cooling, there is no image at all and it really gives a magical feeling.

Can a standard baking coaster bake a small caliber cup?

There are two standard baking mats and small-caliber baking coasters. The standard mat is usually called I-type baking coaster, which can be baked on the 7.5-9cm porcelain cup; the small-caliber coaster is the type II baking coaster, which can be baked on the 5-7.5cm cup.

Here, we provide a simple and effective way to allow standard baking coasters to be baked on smaller diameter cups such as 189 bone china cups, which not only reduces the capital investment in your equipment, but also reduces the trouble of replacing the coasters. That is, in the standard baking mat, a high-temperature thermal conductive silicone pad with a size of 25×11cm and a thickness of 3mm is placed in the standard baking cup pad (Taiwan does not adhere to the cup, and the image is blurred due to too long heating time). It can be baked at 180oC for about four minutes.

What kind of inkjet paper is better for sublimation ink?

In addition to deep-colored textiles, thermal sublimation inks are used for thermal transfer of other items. Many people have a misunderstanding that the better the inkjet printing paper, the higher the resolution. The stronger the ink-sucking ability of the inkjet paper, the more difficult it is for the sublimation ink particles to be vaporized and released from the inkjet paper. Therefore, the surface of the thermal transfer material on the substrate is light in color and the color is not abundant. The use of cheaper ones, in addition to containing more harmful substances (some of them even smell a pungent odor), and residual chemicals will dissolve some of the sublimation inks, will not achieve the maximum amount of restored images. The role. Sublimation special ink-jet printing paper can sublimate more than 90% of the ink into the substrate coating (ordinary ink-jet paper can only be about 50%), to maximize the reduction of real colors, but also make the heat transfer products can be longer Keep bright colors! Thermal sublimation special ink-jet printing papers vary from place to place. There are common U.S. papers, Korean papers, Dutch papers, Japanese papers, Italian papers, and Taiwanese papers. Domestic papers are also available.

Is it necessary to quench the porcelain or porcelain plate immediately after being baked in cold water?

Not necessarily, it will not be lost in water to prevent the ink from continuing to evaporate, as some websites say. As long as the printing material leaves the hot part of the ink will not be sublimation and volatilization, so the natural cooling or air cooling can be, and some ceramics with a low thermal expansion coefficient do not bake when baked, thrown into the cold water will burst, especially Be especially careful in winter.

What is the high temperature porcelain phase?

Only searching for “high-temperature porcelain phase” on the Internet will result in a large number of companies launching so-called “patent technology, international leadership, and permanent preservation” of high-temperature ceramics projects. They are unceremoniously charging high technical training fees. Initial fee and so on. The high-temperature ceramic phase referred to here is not a traditional high-temperature porcelain made by hand drawing, engraving or printing screen printing and then high-temperature baking. Those are treasures of China and are worthy of our cherishing. What we want to approve are those who deceive consumers under the banner of modern high-tech, and reveal what they call the high-temperature porcelain phase.

First, although the high-temperature porcelain image is stored for a long time, but the picture quality is rough, the hue deviation is large, the color is not clear, the production process is repeated, the finished product rate is low, and the high-temperature electric furnace consumes a large amount of electricity and is not easy to grasp. It takes 4 prints to make a porcelain image, and once it is in place, it is not good to be scrapped. In addition, there is no permanent thing in the world. To preserve it permanently, the photo is converted into a data carrier in the computer. The color information will not change after 10,000 years. The number of porcelain phases to be made at the time is the same as it is today. Save it permanently.
Second, many people buy porcelain equipment, but they do not have any business. Even the purchase costs are not returned. The current market status is: the living people are unwilling to make porcelain images, and the dead do tombstones have not yet formed this consumption habit in most parts of mainland China. , And want to form this spending habits, it takes a long time, even 10 years 20 years 50 years can not be formed, the equipment is idle for a long time, and the equipment is not worth the money: a modified Lexmark or other brands of low-grade printer (a few Hundred million yuan) An electric stove is not worth a total of 1,000 yuan. It is not the ink but the glue that is printed in the printer. It is then hand-colored to dust, brush to sweep powder, etc. The printer does not need to stop the nozzle. In addition, this method can only print flat tiles, cups and pans can not do high-temperature ceramic phase, so the market is difficult to promote, in one word: this kind of high-temperature ceramic phase is best not to try! (To do high temperature is not without a solution, manual after the print version Screen printing and high temperature, knowing the technology, if you do not have high costs, making more pieces is cheaper, and you can also do curved surface temperature. Shaiban is very easy, now there is a technology that can be used without the film can print)