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常见问题

Classification and difference of ink in digital textile printing(1)

Ink, a liquid containing a pigment or dye, which is used in writing or painting. With the wide use of printing and dyeing and inkjet t technology,  printing ink is the ink most be used. In textile printing, ink can be divided into several categories: Pigment ink, Thermal transfer ink, acid  ink  and  reactive  ink.

 

Thermal transfer ink:

Thermal transfer ink, also known as dye sublimation ink. It is mainly used for heating  products  in transfer printing. Through heating the heat transfer machine, thermal transfer ink can make the pattern and text clearly  on the other products. Compared with other inks,dye sublimaton  inks deliver brilliant colour and good light fastness. After heat transfer, the image is clear and the color is bright. Designed for printing onto polyester substrates, these versatile inks will sublime onto polyester rich apparel fabrics, for example sports wear, carpet fabrics, sails and flagging material. Fabrics retain their natural handle, making this process ideal for garment sampling and also promotional banners. These printed fabrics are hardwearing and washable. Applying heat to the printed image with a press, whether through transfer paper or directly, fixes these vivid inks into the polyester substrate allowing the item to be washed time and time again.

 

Pigment ink:

Relying on tiny coating particles in fiber surface to display colors, Pigment ink has the convergence for different fabric. In another word, it is suitable for all kinds of fabrics. It is a kind of environmentally friendly ink,  because he doesn't create floating color after fixation. It also has good light fastness, it's not easy to decomposed by light. because of its coloring principle, even the particles in the outer layer of the molecule  are decomposed by the light, the inner layer will keep the color.However, Pigment ink is completely insoluble in water, no affinity for the fiber, only color on the fiber surface, so its color performance is relatively poor.

Pigment printing has many shortcomings, but still has a very broad  development. Digital ink jet printing technology of coating is one of the key development on international green printing and dyeing technology, and has entered the stage of industrialization application.

 

 

 

 

Related news: The revolution of ceramic printing in China

 

 

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