Foil hot stamping Process types
July 23, 2019
Cloth stamping technology in China's rapid development, but really put into mass production after 2000.With the rapid development of science and technology, cloth bronzing technology is becoming mature, because the overall effect of the cloth after bronzing appears elegant and trendy, more and more people have won a lot of love of beauty.
With the continuous research and development and update of bronzing technology, cloth bronzing industry has been segmented. Taking bronzing equipment and bronzing methods as an example, there are two kinds of common bronzing equipment:
(1) rotary stamping: stamping plate and the bottom die relief plate are cylindrical, two cylindrical rollers between the line contact, the bottom die relief plate is generally made of moderate hardness of silica gel material.This bronzing machine is suitable for the whole coil of narrow winding cloth.Its advantage is: fast speed, high yield.Its use of bronzing paper, usually, in addition to the metal coating on the back, also has its own bronzing back glue, as long as the appropriate selection of gold foil paper, and the performance of the bronzing machine is accurate, the fastness of the cloth after bronzing, basically still can.But this thing, also have a drawback, because the fabric is more or less have some tension, in the whole volume of rolls of cloth in the process of hot stamping processing, cloth and tipping paper in sports at the same time, was in a multicolor tipping, is not so good, the accuracy of the control process, this time, will have to settle for second best, the monochromatic first hot stamping, perfectly.
(2) flat stamping cloth: the more common stamping machine is: pneumatic stamping machine or manual stamping machine, the main parts of the upper and lower two metal plates.In doing cloth stamping, generally, from the top of the aluminum plate heating and downward movement.Bronzing needs to consider the pressure and time, to see the print pattern glue layer height and cloth can withstand the temperature.In most cases, the temperature is between 140° and 160°, the pressure is above 5kg, and the time is 10 seconds (reference value).Temperature is too low, stamping fastness is not ideal;On the contrary, after the cloth bronzing, the cloth is red (white cloth is yellow) color.If the pressure is too low, the fastness will be affected.Too high, three - dimensional stamping paste pattern collapse, lost three - dimensional sense
