Proban By Rhodia Group, UK .

The Chemical process


PROBAN® in Action


PROBAN® is both a chemical and a quality controlled technological process, treatment takes place at the finishing stage of cotton and cotton blended textile manufacture.

The PROBAN® process involves chemical impregnation. Drying and curing with ammonia gas using Rhodia’s patented licensed technology followed by oxidation and finally neutralisation.

      The process of polymer formation is irreversible. The polymer is completely insoluble and is embedded in the body of the fibre. The polymer can only be removed by powerful oxidising agents, particularly in the presence of metal ions.


PROBAN® Process

  1. Molecules are sufficiently small and linear to penetrate the internal areas of the cotton fibre. Some chemical will be present in the spaces between the fibres.    
  2. Drying removes excess moisture and prepares the fabric for curing.  
  3. Dried fabric is cured with ammonia gas. This causes the small molecules to misoprostol pill cross link and form a polymer. The polymer is then physically trapped and fixed in the core of each fibre.  
  4. A final oxidation and neutralisation treatment completes polymer fixation and removes any residual by-products.  





PROBAN® has an established reputation for offering reliable flame retardant properties to cotton and cotton rich fabrics, built on 50 years experience. PROBAN® was first developed in 1955 to provide protection for children’s sleepwear.

Since then PROBAN® finished fabrics have been developed for use in a

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wide range of applications including Personal Protective wear, upholstery and soft furnishings, mattress ticking and as protective wear for racing drivers.

Recently PROBAN® is contributing to the new concept of multi-layer protection, as it is applied to knitted fabrics used for sweatshirts and t shirts. Wearers can now have several layers of protection from the hardy overalls right down to soft handle t-shirts.


Product lines


The PROBAN® process can be applied to different product lines which can be classified into:

  • Knitted
  • Woven

Both knitted and woven fabrics can be applied to workwear, furnishing and bedding. When choosing a PROBAN® finished product, the following considerations should be made:

Technical aspects such as the way the articles will be laundered

• A cotton/polyester blended fabric is more popular with industrial laundries because it is more economical.

• Fabric containing synthetic fibres will be easier to launder and easier to dry, as synthetic fibres retain less moisture than cellulosic fibres.

• They will last longer.

• The wash dye fastness of synthetic fibres are higher than those of cotton fibres, meaning colours will keep their original tones longer than the fabrics of 100% cotton.

• The crease recovery of a blended fabric is also better than those of 100% cotton. In some conditions PROBAN® cotton/polyester made garments can be dried and worn without having to be ironed.

End use

• PROBAN® fabrics are well adapted to metal industries, electrical utilities and systematically it depends on the FR standards in use in the specific country or industry.


Advantages of PROBAN®

  • Comfort is not modified by PROBAN® finish (air permeability, sweat absorption).
  • Nearly no action on mechanical strengths of finished fabrics.
  • Fabrics can be stored many years without losing

    FR properties.

  • PROBAN® finish does not modify electrostatic properties of untreated fabric.
  • Durability of Flame Retardancy to repeated washes and to dry cleaning is extended to useful lifetime of made up articles, when wash recommendations are respected.
  • FR properties are fast to acid sour, procedure used more and more in industrial laundries at the end of wash cycles for neutralisation of highly alkaline detergent composition used.
  • Cotton rich fabrics can be processed with success.
  • Samples from licensees are systematically FR tested after multiple washes by PROBAN® Quality Control Department.


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