The disadvantages of thermal transfer printing are as follows:
1, the pattern feels a little hard and the air permeability is poor. It will become soft after washing, but the air permeability is still poor.
2. When the printed matter is pulled horizontally, there will be cracks in the pattern, which is inevitable, because the technology of thermal transfer itself determines this.
3. The color of T-shirt will change after high temperature ironing. For example, white will turn yellow. This is caused by the evaporation of water in the T-shirt.
4, color deviation and positioning deviation, the finished product drawing is also relatively easy to scrape off, and the firmness is poor, so it is generally necessary to spray protective film. In addition, the transfer of special media also requires flexographic printing.
5. Thermal transfer technology requires high experience of practitioners.
The disadvantages of pad printing/screen printing are as follows:
1. Need to draw the film and print it out;
It needs employees with many years of experience to operate. When printing complex patterns, it requires a lot of manpower, overprinting for many times, high rejection rate, and deviation in registration and color registration;
It takes a long time before making a plate.
4. The working procedure is complicated and the production cycle is long.
Disadvantages of uv printer
1, the printing cost is high, and the ink cost is 1 times higher than that of ordinary water-based ink.
2. The printing speed is slow. Compared with the fast printing of screen printing and offset printing, the short version printing speed is slower. But the universal printer has the irreplaceable advantages of uv printer:
1, professional uv ink, used for printing media such as leather, can achieve no cracks. At present, Maichuang color printing can do this.
2, professional LED-UV electroluminescence, can be printed and dried immediately, without high-temperature drying, saving process flow and not changing color.
3. The smoothness and relief effect can be adjusted by self-study according to the user's choice, and one machine can print more.
4. There is not much requirement for operators, and users only need simple graphic design software to solve the problem of talent shortage for enterprises.
The first question of choosing a uv universal printer should be considered from the factors of printer stability, nozzle selection, later maintenance cost (the price of replacing the nozzle), after-sales service and so on.
Take the warranty of nozzles, some nozzles can only be guaranteed for half a year or even shorter, and some nozzles can be guaranteed for two years. In terms of price, for Ricoh and Toshiba, Ricoh g5 nozzle costs more than 20,000 yuan, and Toshiba CE4 nozzle costs only about 6,000 yuan. Ricoh's service life is usually 9- 18 months, Toshiba's service life is 24-36 months, which is longer under good maintenance, and the printing speed is twice that of Epson.