vert de nature

Environnement

Environment / Manufacturing / Recycled de-inked pupl manufacturing

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

Trituration

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

Tamisage

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

Flottation

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



Lavage

Washing: Minor impurities in the water are removed, which were separated from the pulp during previous steps.

Dispersion

Dispersion: Ink particles are removed by rubbing fibers together.

Blanchiment

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



2e flottation

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

Épuration

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

Décoloration

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



2e tamisage

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

Mise en balles

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

The pulp is then ready to be sent to the Rolland facility to be converted into quality recycled fine paper.