The most effective Formaldehyde, Bisphenol and Phenol-free fixing agents, specially designed for medium-dark and dark color nuances on PA and PA/EL fabrics.
MESITOL BSF is a new generation fixing agent which offers a safe and effective solution for textile applications, being completely free of any Bisphenol, Phenol, and Formaldehyde. It is developed to meet modern sustainability and performance standards.
Bisphenols, which are under increasing scrutiny due to potential health and environmental risks, are expected to face legal restrictions in the near future. Brands, retailers, and textile manufacturers must act now to find high-quality, sustainable processes and ecological products without Bisphenols.
Specifications
Process
- Continuous application
- Discontinuous application
Ionicity
- Anionic
Compliancy
- Bluesign
- GRS
- ZDHC
Key benefits of
MESITOL BSF
Bisphenol-, Phenol-, and Formaldehyde-Free
Completely free of any Bisphenols, Phenol, and Formaldehyde.
Promotes Safer & Sustainable Textile Production
Supports a safer and more eco-conscious approach to textile manufacturing.
Bluesign® Approved & GRS Compliant
Meets strict environmental and safety standards for responsible textile production.
Environmentally Friendly
No negative impact on health, environment, or wastewater – contributes to a lower CO₂ footprint.
High-Performance After-Treatment
Ensures excellent wet fastness on Polyamide and Polyamide/Elastane blends while maintaining product quality.
Enhanced Fastness Properties
Significantly improves wet, wash, and light fastnesses.
Protective Fibre Coating
MESITOL BSF forms a thin protective film around fibres, preventing dye bleeding in later production stages.

Technical Data Sheet
For detailed specifications, application guidelines, and technical insights, download the full technical data sheet using the download button below. It contains everything you need to better understand MESITOL BSF's performance and benefits.
When to use MESITOL BSF
Post-Dyeing Treatment
Use after treating dyed PA and PA/EL articles to enhance wet fastness, including perspiration, wash fastness, and water resistance.
High Fastness Requirements
Ideal for applications requiring high fastness levels, especially for dark and black shades.
Regulation-Compliant Production
A proactive solution for manufacturers preparing for upcoming Bisphenol restrictions, ensuring compliance with future regulations.
Sustainable Textile Manufacturing
Supports sustainable practices and certifications such as Bluesign®, ZDHC, and other eco-certifications.
High-Performance Fabrics
Suitable for high functional knitting fabrics, shapewear, seamless garments, medical compression stockings, swimwear, and more, ensuring excellent fastness levels.
Why Choose MESITOL BSF?
Choose MESITOL BSF for its exceptional durability and performance, ensuring long-lasting colour fastness on Polyamide, Polyamide/Elastane, and even micro-fibres, even after repeated washing and exposure to perspiration. It is completely free from Bisphenols, making it safe for both human health and the environment. Produced with a reduced CO₂ footprint and minimal wastewater, MESITOL BSF supports a more sustainable and responsible textile manufacturing process.
Frequently Asked
Questions
Is MESITOL BSF free of Bisphenol and does it comply with the new Bisphenol regulations?
Yes, MESITOL BSF is free of Bisphenol and fully complies with the new regulations.
Does MESITOL BSF have any negative impact on human health and the environment?
No, MESITOL BSF does not have any negative impact on human health or the environment. This is because it is free from harmful chemicals like Bisphenol S and Bisphenol F, meets strict environmental and safety standards, and is produced using eco-friendly processes that reduce wastewater and CO2 footprint.
Can MESITOL BSF improve the wet fastness on dyed PA, especially for dark and black shades?
Yes, MESITOL BSF significantly improves the wet fastness on dyed PA, particularly for dark and black shades. It ensures excellent color stability and wash fastness, making it ideal for achieving rich, deep shades. While it is particularly effective for darker colors, it provides reliable performance across a range of shades, ensuring your fabrics maintain their vibrant appearance.
Does MESITOL BSF negatively influence light fastness?
No, MESITOL BSF does not negatively influence light fastness. Light fastness means how well a color stays the same when exposed to light. MESITOL BSF helps the dye stick better to the fabric, which makes it more resistant to washing and water. This is especially useful for dark and black colors. However, MESITOL BSF does not change how the color reacts to light, so the light fastness remains the same.