Teknologi technology cpp

Technology

Tekn1en activated carbon protects cpp

Swedish know-how and German patented technology have made our unique CPP undergarment possible.
The undergarment consist of three layers of fabric:
- "Textile". Outer layer consists of 88% cotton and 12% elastane.
- "Particle filter". An intermediate layer consisting of 100% polyurethane, with a fine-fibre particle filter that reduces the skin's exposure to hazardous particles.
- "Activated carbon". A layer consisting of 100% activated carbon, which adsorbs hazardous gases. The spheres of activated carbon are applied on a fabric made of 100% cotton (the layer of cotton is closest to the skin).

Fabric containing particle filter

The fabric layer with particle filter consists of a fine-fibre particle filter made of polyurethane.
This layer captures hazardous and harmful particles and reduces the skin's exposure to toxic PAHs. It is an extra layer taking care of some of the remaining particles coming through the fire suit.

Fabric containing activated carbon

The unique feature of CPP's undergarment is the layer with activated carbon which consists of tightly applied spheres of activated carbon where each sphere has a diameter of about 0,3 mm. In the unique production process, each individual sphere is produced to withstand a physical load of up to 40 N (=load of up to 4 kg) so very good durability at, for instance knees and elbows.
The activated carbon has unique properties with small pores and a large pore volume that creates a large specific surface where adsorption and chemical reactions can take place. The specific surface area (the inner, adsorptive surface) of CPP's activated carbon is 1580 m2 / gram.
> 1 dm2 of this fabric layer has a specific surface area of more than 1.000 dm2!
> Each m2 of this fabric layer has a specific surface area of more than 100.000 m2!
> Each undergarment has a specific surface area greater than 400.000 m2!
The activated carbon has a superior capacity - due to the specific surface area - to adsorb hazardous gases (PAH)..

The ensemble containing three layers of fabric

Long experience, rigorous quality control and unique technology enable the production of a fabric with excellent permeation of air and moisture, extreme flexibility while still being light and durable. The fabric binds gases, particles and odours and after each fire smoke operation the undergarment could be laundered (see washing instructions manual) to remove dirt and fire smoke residues.
The protective undergarments for firefighters have been tested with the help of Swedish smoke divers and they should always be used together with fire suit EN469.