Process Principle and Characteristics of Transfer Printing Fabric

Transfer printing fabrics appeared in the 1930s and swept Europe, America, Japan and other regions in the 70s. From the historical data, its development process is more special. As predicted by optimists, there is no worrying share in fabric printing, and the principles and characteristics of transfer printing sublimation technology are not as slow or even stagnant and declining as pessimists say. The transfer printing dye-sublimation transfer technology has been widely used in the rapid development of our country. In addition, due to its low investment, no pollution, resource-saving, printing effect and other reasons, it has attracted the attention of relevant government departments.

Sublimation transfer printing is a printing dye, which is printed on transfer paper by a printing method, and the dye is transferred to the fabric through heat/pressure. Specifically, transfer printing is based on the sublimation characteristics of disperse dyes, selects the sublimation temperature range of 180 to disperse dyes, and mixes it with paste to form color inks according to different patterns/pattern requirements. Print the ink on the transfer paper by printing. The transfer paper printed with the pattern and the pattern is in close contact with the fabric, and processed on the 230 transfer machine for 10 30s, and enters the interior of the fabric through the diffusion effect to achieve the purpose of coloring. In order to enable the directional diffusion of the dye during the heating and sublimation process, the thermal sublimation transfer ink from the bottom of the substrate is often imported from Korea and Italy, which is expensive, and the application of digital sublimation transfer technology in printing technology is becoming more and more extensive.

The printing effect is good. The use of sublimation transfer printing fabrics has fine patterns, bright colors, rich and clear layers, high artistry, and strong three-dimensionality. It is another difficult method for printing. And can print the style of photos and patterns. The printing is soft and has a long service life. Transfer printing Sublimation transfer printing is a characteristic of dyes, which can be dispersed on polyester or fiber. The printing feel is very soft and comfortable, and the presence of ink is basically not felt. In addition, because the ink is dry during the transfer process, the image of life and the length of the clothing itself will not be worn out by printed graphics and text and affect the appearance of the fabric.

The process is very simple. The equipment investment is small, and the real rate of flexibility is high. Sublimation transfer printing can be printed into multi-color patterns without flowers and can be printed in a short time according to the individual needs of customers. Save resources and be environmentally friendly. Different from traditional fabric printing, transfer printing sublimation transfer printing does not require post-treatment processes such as steam and washing, saving a lot of water resources, no sewage discharge, saving resources, and protecting the environment.

Pressure is also an important parameter in the sublimation transfer process. Taking textile sublimation transfer printing as an example, if the pressure is too small, the gap between the fabric and the transfer paper is large, the yarn is round, the gas molecules in the ink and the air quality collide and dissipate, resulting in poor printing results, And the ink is easy to leak, the lines become thicker, the pattern is blurred, and the visual effect is poor. If the pressure is appropriate, the gap between the flat fabric and the transfer paper is appropriate, and then transfer a good coloring effect, the pattern is clear, Fine lines: If the pressure is too high, it is easy to produce deformation, such as changes in the appearance of the pile and heavy fabrics, making the hands feel rough and superficial. Therefore, it is important to control the pressure of the printed pattern, the pattern is clear, and the visual effect is very important.

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