After dyeing or printing with reactive dyes, one problem causes the most headaches. Floating dyes do not wash off completely. Color fastness stays poor. Different fabrics stain each other. This is especially bad when you wash multi‑color fabrics together in the same bath. Light‑colored fabrics pick up loose dyes from dark fabrics. Then you get large amounts of defective goods. The loss is heavy.
Why do floating dyes form? It comes from the nature of reactive dyes. During dyeing, some dyes hydrolyze or fail to fix onto the fiber. They only stay on the fiber surface by physical adsorption. If you do not remove these floating dyes, they lower color fastness. What is worse, they migrate during washing and soaping. This causes cross‑staining between fabrics. The final quality drops sharply.
Now here comes the solution. TEXNOLOGY®RH305C anti‑staining soaping agent uses acrylic polymer as its main component. It gives four strong abilities: chelation, dispersion, scouring, and anti‑staining.
First, it resists hard water. It chelates calcium and magnesium ions strongly. So it works well in different water qualities. The soaping result stays stable.
Second，it removes floating dyes efficiently. This greatly improves soaping fastness and reduces shade difference.
Third, it prevents back‑staining. This is especially useful for white grounds on printed fabrics and for yarn‑dyed fabrics. When you wash dark and light fabrics together in the same bath, they hardly stain each other.
Moreover, it is eco‑friendly. It contains no APEO and meets international environmental standards.
So what fabrics can you use it on? TEXNOLOGY®RH305C works on all kinds of cotton and its blends. Use it for soaping after reactive dyeing or printing. You can also use it for anti‑staining soaping on cotton yarn‑dyed fabrics and striped flat‑knit collars.
In real mill applications, factories see clear improvements. Color fastness rises. Back‑staining almost disappears. The first‑pass rate goes up. Rework costs and problems in downstream processes drop significantly.
