Waterless digital printing method

A waterless digital printing method, comprising:

• scanning and detecting a surface to be printed of a target fabric and determining a first type hydrophilic detection point and a second type hydrophilic detection point of the target fabric according to a yarn type, by a visual analysis device;
• performing a primary hydrophilic detection on the first type hydrophilic detection point and the second type hydrophilic detection point, by a hydrophilic detection device, and calculating a hydrophilicity stability parameter;
• comparing the hydrophilicity stability parameter with a preset hydrophilicity stability parameter to determine a fabric preheating mode, the fabric preheating mode comprising differential temperature preheating and uniform temperature preheating;
• recording a first type hydrophilic detection point and a second type hydrophilic detection point corresponding to contact angles larger than a preset reference contact angle as hydrophobic points and determining preheating temperatures for different regions of the target fabric according to a number and distribution of the hydrophobic points, by a data analysis device in differential temperature preheating;
• determining a preheating temperature in the uniform temperature preheating mode according to a hydrophilic speed of the target fabric, by the data analysis device in the uniform temperature preheating;
• performing digital ink-jet printing on the target fabric when preheating is completed, by a digital printing device;
• and
• performing drying and curing in which the printed target fabric is placed into a drying chamber for heating and curing.