Bronzing Fabric - The Process Of Round Pressing And Flat Pressing

    The production process of bronzing of round-pressed round fabrics is naturally different from that of flat-pressed fabrics. The bronzing version of round-pressed round bronzing fabrics and the bottom die relief are both cylindrical, and the two cylindrical rollers are in line contact. The bottom die relief is generally composed of Made of moderately hard silicone material. The speed of this machine is high and the output is high. As long as the gold foil paper is properly selected and the performance of the bronzing machine is adjusted accurately, the fastness of the fabric after bronzing is basically OK.

    However, because the fabric has more or less tension, during the bronzing process of the whole roll, the fabric and the bronzing paper are moving at the same time. When doing multi-color bronzing, it is not easy to control the accuracy of the color registration.

    The more common hot stamping machines used in the process of flat-pressed fabric hot stamping are: pneumatic hot stamping machine or manual hot stamping machine. When making fabric bronzing, the aluminum plate above is generally heated and moved downward. The pressure and time that need to be considered when bronzing depend on the height of the glue layer of the printed pattern and the temperature that the fabric can withstand. In most cases, the temperature is between 140° and 160°, the pressure is more than 5kg, and the time is 10 seconds. If the temperature is too low, the bronzing fastness is not ideal; on the contrary, after the fabric is bronzing, the surface of the fabric will turn red (yellow on the white fabric) and change color. If the pressure is too low, the fastness will be affected; if it is too high, the pattern of the three-dimensional bronzing paste will collapse and lose the three-dimensional sense.