Unlike metal or plastic, textile has irregular surface, pores, and elasticity. Especially, many of textiles developed with special coating, elasticity, and rubber components, which make the printing even more difficult. Dyeing and printing can be used to present characters, logos, or patterns on the textile product. Especially, the following describes the screen-printing.
 
Direct printing (Cotton, Polyester, Nylon, etc.)

o. Solvent-based Ink

NY ink is mainly used on the textile that is not surface treated.
And SG#5000 and MSP (2 component type) ink is used for textile that is water-proof or elastic coated, sometimes without hardener. In this case, heat treatment will increase the drying effect.

o. Plastisol Ink
In case of solvent based ink, the use of solvent causes the harmful air due to the evaporation of the solvent, which makes the continual printing more difficult. The Plastisol ink is non-solvent type ink that solves these problems with enhanced performance in high temperature of 160C for 60 seconds.
It is mainly uses for cotton textiles such as sports shirts.

o. Water-based Ink
This ink is used by resolving with the water without thinner. It is used for textiles such as cotton, polyester, polyamide, and lycra. Agent or heat increases the adhesion.

o. Others
Foamed ink, silicon ink, etc.

 
Indirect Printing (Thermal Transfer)

The direct printing is difficult on textiles such as water-proof coated nylon, sports wear, swimming wear (spandex or lycra), diving suit (Neoprene), and leather since the screen ink cannot penetrate in the textile, and the elasticity or water-resistance of the direct ink is not enough. The thermal transfer method prints the image on the paper (transfer paper) with transfer ink and strong adhesive, and transfer the image by high-temperature and high-pressure on the textile.
For thermal transfer, sufficient technology, experience, and application techniques are required for sufficient adhesion and printing since press m/c requires high-pressure and high-temperature.