1. Material preparation: Selected hot stamping paper and thermal transfer paper
Hot stamping paper, also known as hot stamping foil, is usually composed of a metal layer (such as gold, silver, copper, etc.), a protective layer, an adhesive layer and a release layer. The metal layer can give the fabric a shining luster. When choosing, you need to consider the color, glossiness and compatibility of the metal layer with the velvet fabric. Thermal transfer paper is a medium that pre-prints patterns or text on special paper and then transfers them to the target material by heating. It is suitable for more complex pattern designs. Ensuring that the hot stamping paper or thermal transfer paper selected is of high quality is a prerequisite for obtaining high-quality hot stamping effects.
2. Pattern positioning: precise layout, details determine success or failure
When placing hot stamping paper or thermal transfer paper with hot stamping foil on velvet fabrics, accurate positioning is crucial. Use professional positioning tools or templates to ensure that the pattern is perfectly aligned with the fabric texture and cutting edges to avoid defects caused by misalignment. The delicate texture of velvet fabrics may increase the difficulty of positioning, so patience and meticulousness are the key to the success of this step.
3. Hot stamping process: the art of temperature, pressure and time
Temperature control: Velvet fabrics are sensitive to high temperatures. Too high a temperature may cause the fabric to deform or burn, while too low a temperature may not effectively transfer the metal layer. Therefore, it is necessary to set a suitable heating temperature according to the characteristics of the fabric and the requirements of the hot stamping material. Generally speaking, the heating temperature of the hot stamping machine should be controlled between 120°C and 180°C, and the specific value needs to be determined through experiments.
Pressure application: Appropriate pressure can ensure that the hot stamping foil or hot stamping paper is in close contact with the fabric and promote the uniform transfer of the metal layer. If the pressure is too small, the metal layer may not be fully attached; if the pressure is too large, the fabric fiber may be damaged. Use a hot stamping machine with a pressure adjustment function and adjust it to the optimal pressure value according to the fabric thickness and hot stamping material.
Time control: The time of heating and pressurization is also an important factor affecting the hot stamping effect. If the time is too short, the metal layer fails to fully melt and penetrate into the fabric fiber, resulting in poor adhesion; if the time is too long, the fabric structure may be damaged due to excessive heating. Usually, this process lasts from a few seconds to more than ten seconds, and the specific time needs to be flexibly adjusted according to the feedback in actual operation.
4. Post-processing and inspection
After the hot stamping is completed, the fabric needs to be cooled to room temperature before subsequent processing, such as cutting and sewing, to avoid the influence of temperature changes on the hot stamping effect. At the same time, the finished product is carefully inspected to ensure that the hot stamping pattern is clear, without falling off and flaws, to meet the high quality requirements.
English
中文简体
