Post-Dyeing Soap Dye – Clean Color, Low Foaming, Temperature Resistant 80–98°C

Soaping Agent for Post-dyeing is a low-foaming, anionic/nonionic liquid for washing reactive and direct dyed fabrics. It efficiently removes unfixed and hydrolyzed dyes, improving rub and wash fastness. Use 0.5–2.0 g/L at 80–98°C for 10–20 minutes (exhaust). Compatible with jet and overflow machines, it supports clean, bright shades.

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What Problems Does It Solve? Where to Use?

Soaping Agent for Post-dyeing solves the problem of unfixed and hydrolyzed dyes remaining on reactive or direct dyed fabrics, which cause poor rub/wash fastness and dull shades. It is used in post-dyeing washing after reactive and direct dyeing. The process (0.5–2.0 g/L, 80–98°C for 10–20 minutes, exhaust) efficiently removes these loose dyes, improving fastness and delivering clean, bright shades.

What Makes It Attractive & Different?

Unlike many soaping agents that foam heavily, our Soaping Agent for Post-dyeing is lowfoaming, making it ideal for jet and overflow machines where foam can cause operational issues. Its dual anionic/non-ionic nature ensures broad compatibility with most dyeing and washing auxiliaries, including sequestrants and mild alkali systems. It is completely water-soluble (density 1.00–1.06 g/cm³) and has a neutral to slightly alkaline pH (7.0–9.0 in 1% solution).

Why Buy Ours Instead of Others?

Competitors’ soaping agents may leave dye residues, cause re-deposition, or require multiple rinses. Our Soaping Agent for Post-dyeing efficiently lifts and disperses hydrolyzed dyes in one short bath (10–20 minutes). It reduces water and energy consumption while improving wash and rub fastness. Choose a reliable, lowfoam formula that protects machine performance and fabric quality – backed by a 12-month shelf life when stored in cool, dry conditions.

Parametric characteristics of products

Parameter	Value / Description
Product Name	Soaping Agent for Post-dyeing
Chemical Type	After-treatment Auxiliary (Soaping Agent)
Appearance	Clear to light yellow liquid
Ionic Nature	Anionic / Non-ionic
pH (1% solution)	7.0 – 9.0
Solubility	Completely soluble in water
Density	1.00 – 1.06 g/cm³
Recommended Dosage	0.5 – 2.0 g/L
Process Temperature	80 – 98 °C
Process Time	10 – 20 minutes (exhaust)
Process Note	Rinse thoroughly after soaping
Machine Suitability	Low-foam jet and overflow machines
Compatibility	Compatible with most dyeing and washing auxiliaries, sequestrants, and mild alkali systems
Storage	Store in original, tightly sealed containers in a cool, dry environment
Shelf Life	12 months from date of manufacture

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What is this product?

Soaping Agent for Post-dyeing is a clear to light yellow liquid with anionic/nonionic character. It is completely water-soluble, has a density of 1.00–1.06 g/cm³, and its 1% solution shows pH 7.0–9.0. Designed as a lowfoaming aftertreatment auxiliary, it efficiently removes unfixed and hydrolyzed dyes from reactive or direct dyed fabrics.

This product application?

Use 0.5–2.0 g/L at 80–98°C for 10–20 minutes in exhaust process, then rinse thoroughly. Ideal for low-foam jet and overflow machines. It improves rubbing and wash fastness, supporting clean, bright shades. Compatible with most dyeing/washing auxiliaries, sequestrants, and mild alkali systems. Store in original sealed containers in a cool, dry place; shelf life 12 months.

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Soaping Agent for Post-dyeing is a clear to light yellow liquid with anionic/non‑ionic character. It is completely water‑soluble, density 1.00–1.06 g/cm³, and its 1% solution has pH 7.0–9.0. The liquid is low‑foaming, making it suitable for jet and overflow machines. It is supplied in sealed containers and should be stored in a cool, dry place.

Application scenarios:

For post‑dyeing washing of reactive or direct dyed fabrics, add 0.5–2.0 g/L of Soaping Agent for Post-dyeing to the bath. Process at 80–98°C for 10–20 minutes (exhaust), then rinse thoroughly. This treatment removes unfixed and hydrolyzed dyes, improving rub and wash fastness and delivering clean, bright shades. It is compatible with most dyeing/washing auxiliaries, sequestrants, and mild alkali systems.