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 Coated paper 

 

A wide range of technical information and multimedia files on our Creator range and its manufacturing process.

 

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FAQS

What is coated paper?

All coated papers are composed of a cellulose substrate on the surfaces (sides) of which a series of paint layers (coating) are applied. This coating develops the properties of the paper for the reception of ink (color) during the printing process.

Coated papers are always white, although they can also be found in ivory.

Is Creator a woodfree or mechanical pulp-based coated paper?

The range of Creator papers is made up exclusively of woodfree (WF) coated papers. This name refers to the manufacturing of paper with cellulose pulp that has been subjected to chemical treatment to obtain a high level of whiteness.  

Is Creator paper ECF?
Yes. All Creator range papers are manufactured with ECF (Elementary Chlorine Free) woodfree pulp. In other words, chlorine gas is not used in the whitening process of the cellulose, in this way eliminating effluent dioxins.
What color sequence is recommended for printing Creator papers?

In order to minimize the effect of the color sequence on printing results, the print run should be printed with a standardized color sequence, in accord with the BVP/FOGRA standard.

 

Recommended color sequences are:
• 4-color wet-on-wet printing: Black/Cyan/Magenta/Yellow
• 2-color wet-on-wet printing: Cyan/Magenta/Black/Yellow
• • 1-color wet-on-dry printing: Cyan/Magenta/Yellow/Black (In this case, black can be printed first or last, though, due to greater ease in the adjustment of color, it is recommended that black be used last).

 

Occasionally, due to demands of color or pattern, it may be convenient to disregard these norms. If cyan is prominent in the image – for example, when printing a poster with a predominantly blue sky or when violet tones are required – another color sequence can be used substituting cyan for magenta, or vice versa.

What environmental guarantees does the Creator range of papers offer?

Torraspapel is firmly committed to the preservation of the environment. In the manufacturing of all its products, including the Creator range, it uses natural, renewable raw materials, employs production methods which respect the environment, and manufactures recyclable and biodegradable papers.

 

In addition, 100% of Torraspapel’s production is ECF and all of the Group’s mills have completed ISO 9001 certification and ISO 14001 environmental management certification. Mills where the Creator range is manufactured also hold European environmental EMAS certification.

 

The wood used in the manufacturing process of the Creator range comes from sustainably managed forests, and Creator products are available on demand with Chain of Custody PEFC and FSC forest management certifications.

Why is the pH of the paper important?

In the paper manufacturing process, substances are added which come to form part of the fibrous mass and ultimately determine the acidity or alkalinity of the paper. The most important factor in this are glue products, as glue is added to paper to regulate the penetration of water.
Depending on the products used for gluing the paper; or rather according to the manner in which the surface of the paper has been treated, the paper can have an acidic, neutral or alkaline pH.
The surface of Creator papers is treated with calcium carbonate, resulting in pH neutral paper.

How should Creator paper be stored in the print room?

Before printing, it is advisable to keep the paper in the print room in its original packaging for a minimum of 24 hours prior to introduction into the machine.
It is important to control the temperature and relative humidity in the printer’s as they can affect the resistance of the ink and its drying, as well as giving rise to static electricity, stressed edges, waves, picking of fibres and coating, and delamination of the paper.
The optimal conditions for the printer’s are: a relative humidity of 50% ± 5 and a temperature of 20-25ºC.


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