Fedrigoni

Recycled Tool

Raw materials used to produce recycled paper

1 VIRGIN CELLULOSE

This is the main raw material used to produce paper and is mainly obtained from trees such as conifers, birch and eucalyptus. Since 2005, Fedrigoni has been using FSC® certified pulp and from 2014 exclusively using FSC® certified pulp.

2 RECYCLED FIBRE

This material is selected by waste collection centres and is re-processed for re-use to produce paper. These fibres cannot be recycled indefinitely, only up to 7 times, since they become too weak and too short to create new products.

2.1 PRE-CONSUMER WASTE

Includes offcuts arising directly from processing operations in the paper mill itself. Fedrigoni rationalises and optimises the re-use of in-house production waste, thereby providing clean, "zero km" materials for recycling. Alternatively, fibres coming from printed or unprinted papers which, have not reached the end of their useful life cycle, like unsold newspaper returns, remaindered books and publications, as well as print waste. This material is collected and re pulped.

2.2 POST-CONSUMER WASTE

Fibres, coming from a product after it has been used for the purposes for which it was intended, both individually and collectively, and which has reached the end of its useful life cycle. The material may not be consistent and may also contain other unsuitable products. This material can only be reused to produce special papers after a de-inking process and using chemicals with high energy expenditure.

Since 2015 FSC , in the FSC-DIR-40-004 to the ADVICE-40-004-13 recommendation, recognises the equivalence between Pre-Consumer Waste and Post-Consumer Waste.

The graph below shows the environmental impact of each material.

The samples included in this kit were produced in our own paper mills with the aim of making them as comparable as possible. The table lists values for each sample.

 

Laboratory Analysis

The table below outlines the printing performance of all three samples. The tests were performed by an independent certified institute.

In particular:

  • 100% Virgin cellulose
  • 60% Virgin cellulose — 40% Post-consumer waste
  • 100% Post-consumer waste

Virgin cellulose

100% 60% 0%

POST - CW

0% 40% 100%

BULK

The relationship between thickness and weight. Depending on this value, papers are suitable for different uses.

1,52 1,50 1,42

AIR RESISTANCE / AIR PERMEABILITY

Lower porosity ensures better printing definition.

35 45 62

BENDING STIFFNESS MACHINE DIRECTION

Better folding strength means that the paper is more resistant and therefore suitable for creasing and packaging products.

199 143 63

BENDING STIFFNESS CROSS DIRECTION

Better folding strength means that the paper is more resistant and therefore suitable for creasing and packaging products

85 65 23

BRIGHTNESS

The higher the value, the better the brightness of the substrate and the colour rendering during printing.

103,9 101,5 98,1

L*

This coordinate represents the lightness of paper

97,9 96,5 95,28

Light exposure test

This laboratory analysis simulates the yellowing of paper following a prolonged period of exposure to light. Paper made from pure virgin fibre is distinctly less sensitive than samples containing fibre from post-consumer waste.

Laboratory tests confirm that: paper made of 100% virgin fibre pulp ensures maximum performance levels. In particular: it is distinctly brighter and its folding strength is 3 times higher.

When choosing a PCW paper, it is therefore good practice to bear in mind:

  • lower folding and creasing strength, with a high risk of failure in the printing press;
  • the direction of the fibres is unstable;
  • imperfections in the paper;
  • less stability over time;
  • problems such as non-uniformity of colour between different production batches;
  • lower light fastness

Test: Printing quality analysis

Colour

Tonal rendering comparison using standard targets printed with oxidative inks.

Tonal contrast

Expresses the relief effect, chiaroscuro and roundness of the image between light and dark parts. It especially evaluates subjects with a broad greyscale.

Modelling and detail

This expresses the tonal transitions in the highlights, mid-tones and shadows.

Grey Balance

Grey balance images must retain the same balance as the reference in the highlights, mid-tones and shadows alike.

Resolution and definition

Verifies the system's ability to resolve details.

Apparent macro-structure

Verifies how the support used for the test renders the printed image effect in terms of "moiré", "compactness", "smoothness or roughness" etc.

In more detail:

Tonal Value Sum - TVS

This instrument-based analysis is used to compare how much ink can be applied to paper and if the paper is capable of turning it into differences in colour.

The L* value, at the TVS point 300 indicated by the standards, is higher for paper with 100% wood-free pulp, while it is lower for 60% wood-free - 40% PCW paper and even poorer for 100% PCW. This means that paper made using 100% wood-free pulp, at the same colour coverage, ensures deeper "blacks".

In more detail:

Colour test

Tonal instrument analysis carried out by comparing standard targets printed with oxidative inks on the three different papers, whose measurement allowed to create the three ICC profiles and the three gamuts.

In more detail:

Stability

Register management highlights how different types of paper may provide higher or lower levels of printing stability.

In more detail:

Reproducing the screen dot

Measurement of printed screens to verify the response of AM screening with different types of printing as well as the deviation in the tonal reproduction curve from the standard. The images show how the screen dot is reproduced on the printed media: a sharper screen dot creates sharper printing results with better contrast.

For further information, do not hesitate to contact us at

Welcome to our contact form. Would you like information on products or services offered by Fedrigoni?

Use the form below, your messages will be forwarded to our experts and our sales network and you will be contacted as soon as possible.

Province