Nano liquid dye wash-free printing: the core secret of green printing and dyeing

Traditional printing and dyeing rely on a lot of water washing to remove floating colors, while nano liquid dyes have completely subverted this process through three technological innovations

1. Nano-level penetration

Dye particles are reduced to less than 100 nanometers (thousand times thinner than hair), penetrating deep into the fiber like a "molecular probe" instead of accumulating on the surface. This reduces more than 90% of floating color residue from the source.

2. Chemical bond "welding"

Dyes carry highly active groups (such as epoxy groups) and form covalent bonds with the hydroxyl/amino groups of the fiber when heated. This molecular-level "welding" is 10 times stronger than traditional bonding, ensuring that the dye never falls off.

3. Self-crosslinking color locking

Environmentally friendly crosslinking agents are added to the formula, and a three-dimensional polymer network is automatically formed on the fiber surface during drying, locking the dye firmly inside the fiber, just like putting on "anti-fading armor" for each fiber.

Environmental protection win-win

Zero washing: save 100% of rinsing water, eliminate sewage discharge

High performance: color fastness is improved to level 4-5 (military standard)

Energy saving: shorten the process time by 50%, reduce energy consumption

This technology has been applied to sportswear, fast fashion printing and other fields, pushing the textile industry into the era of "waterless printing and dyeing". In the future, as costs decrease, it will accelerate the replacement of highly polluting traditional processes.