2024-12-07
1. There are two types of water transfer technology, one is water mark transfer technology, and the other is water coating transfer technology.
The former mainly completes the transfer of text and photo patterns, while the latter tends to transfer the entire product surface completely.
2. Water transfer processing technology is a printing technology that uses water pressure to hydrolyze the transfer paper/plastic film with color patterns.
3. Water transfer uses a specially chemically treated film, which is printed with the required color texture and then sent flat to the surface of water. Using the effect of water pressure,
Water transfer processing transfers the color texture pattern evenly to the surface of the product. At this time, the coating film automatically dissolves in water.
After cleaning and drying, a layer of transparent protective coating is applied. At this time, the product has presented a completely different visual effect.
The thermal transfer sublimation method generally undergoes three processes: before the transfer process occurs, all the dyes are in the printing film on the transfer paper,
The dye concentration in the thermal transfer printing fabric and the air gap is zero, and the size of the air gap depends on the structure of the fabric, the yarn count and the transfer pressure.
During the transfer process, when the paper reaches the transfer temperature, the dye begins to volatilize or sublimate, and forms a concentration diffusion between the paper and the fiber,
When the printed fabric reaches the transfer temperature, the dye adsorption begins on the fiber surface until a certain saturation value is reached.
Since the transfer of dyes from paper to fiber is continuous, its adsorption rate depends on the rate at which the dye diffuses into the fiber.
In order to allow the dye to diffuse in a directional manner, a vacuum is often drawn on the lower side of the dyed object to allow the dye to achieve directional diffusion transfer. After the transfer process,
After the dyed object is colored, the dye content on the paper decreases, and part of the remaining dye migrates to the inside of the paper. The amount of residual dye depends on the vapor pressure of the dye,
The affinity of the dye to the slurry or transfer paper and the thickness of the printing film. The sublimation method generally does not require wet treatment, which can save energy and reduce the load of sewage treatment.