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In order to convert old paper into de-inked pulp, eleven transformation steps are carried out.

Pulping

Pulping: Preparation of coarse pulp by mixing old papers with water and breaking them up using the pulper’s powerful agitator.

screening

Screening: The pulp is pushed through the screen to remove solid impurities such as staples and glue.

floatation

Flotation: Fine soapy bubbles are added to the pulp to bring ink particles to the surface.

washing

Washing: Visible dirt and glue residue in the water are removed.

dispersion

Dispersion: Ink particles are removed by rubbing fibers together.

bleaching

Bleaching: The pulp is bleached using hydrogen peroxide, a non-chlorinated component that is environmentally friendly.

second floatation

Second Flotation: Fine soapy bubbles are added to the pulp to bring residual ink particles to the surface.

cleaning

Cleaning: The pulp is put through cleaners, which use centrifugal force to separate the impurities from the pulp.

bleaching

Bleaching: In this second phase of chlorine-free bleaching, the degree of whiteness of the pulp increases and any remaining coloring is removed.

secondscreaning10

Second Screening: The pulp is pushed through the screen to remove residual sticky particles.

baling

Baling: Thickening the pulp by dewatering, sheeting, cutting and baling.