MESITOL® UFR is a bisphenol-free fastness improver and reserving agent for textile dyeing and finishing. It is designed to support high wet fastness, clean shade results and controlled dye uptake on PA, PA/elastane and selected blended fabrics, including dark, black and fluorescent shades.
MESITOL® UFR helps close the gap between performance and compliance. Many mills need deeper shades, stronger wash performance and cleaner contrast effects, but they also face tighter brand, regulatory and restricted-substance requirements. MESITOL® UFR gives them a practical product route to improve wet fastness without introducing staining or discoloration issues.
For customers, the value is not only better test performance. It is a lower risk of rework, fewer quality surprises, more reproducible production and a stronger compliance story for brands and sourcing teams.
Specifications
Process
- Continuous application
- Discontinuous application
Ionicity
- Anionic
- Nonionic
Compliancy
- ZDHC
- GRS
When to use
MESITOL® UFR
High Wet Fastness
When high wet fastness is required, especially on dark, black or fluorescent shades.
Fastness Security
For PA, PA/elastane and PA-blend fabrics that need additional fastness security.
Print Protection
For printed fabrics, contrast designs or articles with white backgrounds where staining or discoloration is unacceptable.
Process Reproducibility
When production needs stable and reproducible results across lab trials and bulk processing.
Controlled Dyeing
For tone-in-tone dyeing of wool/polyamide, wool/cellulosic or polyamide/cellulosic blend fabrics, where controlled dye uptake is required.
Flexible Processing
In both exhaustion and continuous processing routes, depending on the article, substrate and mill setup.
Handout
For a clear overview of MESITOL® UFR’s key benefits, recommended use cases, sustainability profile, and performance advantages, download the full product handout using the button below. It provides a practical summary to help you understand how MESITOL® UFR supports reliable fastness results without compromising compliance or quality.
Why Choose MESITOL UFR?
MESITOL® UFR combines next-generation fastness chemistry with TANATEX application know-how. That combination matters because performance on PA, PA/elastane and blended fabrics depends on more than the product alone: substrate, shade, background colour, equipment and processing route all influence the final result.
• Specialist expertise in PA, PA-blend and PA/elastane processing.
• Support from initial lab assessment through production-scale implementation.
• Practical knowledge across dyeing, aftertreatment and finishing, not only product supply.
• Solutions validated for real production challenges such as dark shades, prints, white grounds and sensitive blends.
• A partner approach focused on performance, compliance and process continuity.
Key benefits
High wet fastness across shades
Supports fastness performance on light, dark, black and fluorescent colours.
Clean appearance
Helps avoid staining and discoloration, making it especially relevant for white grounds and contrast effects.
Reduced backstaining risk
Improves dye/fabric interaction during aftertreatment to help protect article appearance.
Process stability
Supports consistent and reproducible production results.
Tone-in-tone control
Can act as a reserving agent to help regulate dye uptake on selected blend fabrics.
Compliance-oriented chemistry
Free from several substances of concern and aligned with key textile compliance programmes.
FAQ
Is MESITOL® UFR only for dark shades?
No. It is especially relevant for dark and black shades because these often carry higher fastness risk, but it can also support light and fluorescent shades where wet fastness or clean appearance is critical.
Can it be used on PA/elastane fabrics?
Yes. The handout positions MESITOL® UFR for PA and PA/EL applications, as well as PA blends. Final process settings should always be validated on the actual article and shade.
Will it cause staining on white backgrounds?
MESITOL® UFR is positioned for clean results without staining or discoloration, which makes it relevant for printed fabrics and articles with white backgrounds. Mill trials remain recommended before bulk production.
Can MESITOL® UFR be used in existing finishing systems?
Yes. It is described as compatible with standard finishing systems and suitable for both exhaustion and continuous processing routes.
Does it have a role beyond fastness improvement?
Yes. In addition to wet-fastness improvement, it can be used as a reserving agent for selected tone-in-tone dyeing applications on wool/polyamide, wool/cellulosic and polyamide/cellulosic blends.
Where can customers find technical details such as dosage and process conditions?
Detailed process guidance should be provided in the TDS and supporting technical documentation. The website page should stay focused on positioning, benefits and use cases.
Sustainability & Compliance
MESITOL® UFR supports customers who need to combine fastness performance with responsible chemistry and brand compliance expectations.
• Free from bisphenols, phenol, resorcinol and formaldehyde, according to the current handout claims.
• bluesign® and ZDHC approved, according to the current handout claims.
• GRS compliant, according to the current handout claims.
• GOTS approval is described as expected in the handout; verify current status before publishing the webpage.
• Helps mills respond to compliance requirements without positioning sustainability as a trade-off against product quality.