For the first time a newly developed discharge ink supports ink-jet printers. This allows printing on dark color T-shirts. Gradations are also perfectly expressible, which expands characteristics of an ink-jet printer. TP Ink is safe and contains very low levels of formaldehyde. It does not impair air permeability or the water-absorbing properties of fabrics. Printed fabric keeps a very pleasant feel. Because of a special binder, only heating after printing can complete the job. Note: Color fastness to washing differs according to the garment materials, etc. Please confirm the color fastness yourself by washing finished garments. Printed fabrics contain very low levels of folmaldehyde?please don't use it for baby goods.