Lest Talk the Requirements For Dye Sublimation Transfer Printing
As we know that in the sublimation printing process, printing on the process of dyes, materials are required, transfer printing applications for the dispersion of dyes, the actual sublimation temperature is lower than the melting point of fiber macromolecules and can not damage the strength of the fabric. The appropriate processing temperature for polyester is 180-120 ° C. At the same time in the temperature of the dye, the occurrence of the molecular weight of the varieties in the 230-270, the molecular material is also divided into three during this period.
The first, fast-dyeing disperse dyes: the temperature at 180 ℃ or so can sublimate hair color, the higher the temperature, the color will change, while the edge will occur seepage.
The second, good dispersion of the dye: temperature in the range of 180 – 210 ℃ can sublimate hair color. Hair color curve flat. The effect of temperature on dyeing is not that it is the more suitable disperse dye sublimation ink for transfer printing.The third, late dyeing disperse dyes: in the case of 180 – 210 ℃ dye can not be a good sublimation, hair color. Such as raising the temperature, you can get a good hair color. This kind of dye is highly dependent on temperature when dyeing.
So the process of printing the dye is required, different temperatures in different fabrics on the changes are not the same. Such as good fastness to washing on the fiber and ironing fastness. For macromolecules on some of the macromolecules, if the aggregation in the fabric surface, but also to the fiber inside the spread.
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