Packaging machine

It is the machine used to pack finished products in various formats so that they meet given conditions of marketability and safety.


Commercial name of a colour coding and identification system used in graphics, publishing and typography.


Paper is the whole of plant-based fibres that are held together by natural bonds. It differs from cardboard or paperboard mainly for its grammage, i.e. the weight expressed in grams per square metre. Paper can be considered to include sheets up to a weight of 200 g/m2.

Paper converting

A paper converting plant is an industrial site dedicated to the conversion of the jumbo reels made in the paper mill into finished products for sale.

Paper machine

It is the machinery dedicated to the production of paper jumbo reels. In modern paper mills this machinery works 24 hours a day, 7 days a week.

Paper mill

It is an industrial plant for the manufacture of paper.

Paper mill sludge

These are solid residues consisting mainly of small cellulose fibres, mineral fillers (mineral substances present in cellulose or waste paper) and ink residues.

PEFC (Programme for the Endorsement of Forest Certification)

Certification that guarantees the origin of raw materials from suppliers that implement sustainable forest management systems with a certified chain of custody.

Primary colours

They are yellow, magenta and cyan and are the only material colours capable – if mixed in different quantities – of reproducing any coloured sensation that can be obtained by printing. Black must be added to the printing of the three primary colours.


It is the set of features that make a paper particularly suited for receiving inked graphics. These features are particularly linked to the surface finish, surface resistance and ink absorption-affinity.

Private Label

This is a product made for distributors and sold under their own brand with specific quality features.

Production waste

Paper processing residues as a whole made during the production and transformation process.


In the tissue paper world, this is the preparation formed of pure cellulose fibres and/or paper to be recycled and water that will be used for the formation of the paper sheet.


Large cylindrical piece of machinery, equipped with an impeller that creates a cellulose fibres suspension through the mechanical action of rotating blades and the presence of water. Fibrous raw materials and water enter the pulper and the pulp that comes out is sent to the paper machine to make new paper. In the production, from recycled paper, the mechanical action separates the fibres from the waste materials which are expelled from the pulper, in addition to separating the fibres.

Pulper waste

Together with paper mill sludge, it is one of the two main waste products in the paper recycling process. It consists of non-fibrous materials present in the paper to be recycled (metal staples, plastic, wooden parts, etc.).


This is the last stage of the pulp preparation process using recycled paper as raw material. This step eliminates any heavy and light impurities (such as metal staples, sand, plastic, enamel, etc.) by exploiting the physical principles of different specific weight and size.

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