Why Choose Mercerizing Penetrant (Alkali-resistant)?
Mercerizing Penetrant (Alkali-resistant) is engineered for high-alkali processes such as cotton mercerizing, polyester alkali de-weighting, and linen pretreatment. It solves common issues like uneven alkali penetration, caustic back-staining, poor fabric luster, and insufficient whiteness. Ideal for rapid mercerizing of grey fabric or unrefined cotton yarn, it works in cold pad-batch, exhaust, or continuous processes at 200–300g/L alkali concentration.
What Makes It Attractive & Different?
Unlike ordinary penetrants that lose efficiency in strong caustic, this product remains highly stable with excellent wetting, dispersion, emulsification, and cleaning abilities. Its low-foaming nature prevents process troubles, and it dissolves easily at low temperatures in any proportion with water. The 60% solid content delivers powerful performance at low dosages – only 5–10g/L or 0.2–1% o.w.f. – saving you chemical costs.
Why Buy Ours Instead of Others?
Many competitors’ penetrants cause foam issues, alkali back-staining, or require high doses. Our Mercerizing Penetrant (Alkali-resistant) accelerates the mercerizing process, ensures uniform and thorough alkali penetration, and enhances dye uptake for brighter, fuller colors. It also prevents caustic from re-depositing onto fabric, giving you superior luster and absorbency. Choose proven reliability for strong alkali conditions – faster processing, better quality, and lower total cost.

Parameter | Value / Description |
Product Name | Mercerizing Penetrant (Alkali-resistant) |
Appearance | Yellow transparent liquid |
Odor | Odorless |
pH (1% solution) | 7.5 – 8.5 |
Solid Content | 60% ± 2% |
Stability (3000 rpm, 10 min) | No layering, no precipitation |
Alkali Resistance | Stable at 200 – 300 g/L NaOH |
Foaming Property | Low foaming |
Solubility | Cold soluble; miscible with water in any ratio |
Ionic Nature | Anionic (fatty alcohol sulfonate salt) |
Recommended Dosage | 5 – 50% o.w.f. |
Application Processes | Cold pad-batch, exhaust, continuous mercerizing |
Suitable Fabrics | Cotton, polyester/cotton, linen, and their blends |
Storage & Shelf Life | Cool & ventilated place; 12 months |
Packaging Options | 200g sample, 125kg plastic drum |
What is this product?
Mercerizing Penetrant (Alkali-resistant) is a yellow transparent liquid with 60% solid content, made from fatty alcohol sulfonate salt. It is an anionic, low-foaming agent that remains stable under extreme alkali conditions (200–300 g/L NaOH). It dissolves easily in cold water and mixes in any ratio.
This product application?
It is designed for cotton, polyester/cotton, and linen mercerizing, as well as polyester alkali de-weighting. Use 5–10 g/L alone or 5–50% o.w.f. as an additive. It accelerates alkali penetration, prevents caustic back-staining, and improves fabric luster. Suitable for cold pad-batch, exhaust, or continuous processes.
Product Detail
Yellow transparent liquid – High-purity, 60% solid content, easy to pour and dose in mercerizing baths.
Cold solubility – Dissolves instantly in low-temperature water, miscible in any ratio without residue.
Low foaming – Minimal foam generation prevents process issues and ensures smooth alkali penetration.
Alkali stability test (200–300 g/L NaOH) – Remains clear and active under extreme caustic conditions.
Packaging options – Available in 200g sample bottles and 125kg plastic drums for flexible supply.
Application Scenarios & Case Studies
Cotton mercerizing (exhaust / continuous) – Applied at 5–10 g/L, 200–300 g/L NaOH. Achieves uniform alkali penetration, eliminates back-staining, and enhances fabric luster.
Polyester alkali de-weighting – Used as 5–50% o.w.f. additive. Accelerates weight reduction, improves dispersion, and prevents uneven etching.
Cold pad-batch mercerizing – Cold-soluble formula works perfectly at ambient temperature. Saves energy while delivering thorough wetting and whiteness.
Linen & blended fabric processing – Ensures fast, even caustic penetration for linen and poly-cotton blends. Results in brighter dye uptake and fuller color.
Dry mercerizing of gray fabric – Enables processing of unrefined cotton without pre-scouring. Reduces water, energy, and chemical consumption.



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