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Invercote Duo

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Solid Bleached Board

Solid Bleached Board

Invercote is a multi-layered product (solid bleached board, SBB), entirely based on fresh fibres. Specific fibre compositions are used for the various layers in the construction to optimise performance. The outer layers are dominated by hardwood fibres to promote smoothness and printability. The middle layers consist of softwood fibres for strength and flexibility.

Product description

Invercote Duo expands creative possibilities due to its excellent printability and colour reproduction. The standard version is made through back-to-back pasting of triple-coated Invercote, which enables two identical printing surfaces. Alternative versions are available, with front-to-back or front-to-front pasting, to achieve special properties or appearances.

Duo-products can also be made by Holmen’s formable solid bleached board Inverform, or by combining different paperboard grades and grammages. Lamination of up to three or four layers of paperboard is also possible.

Due to its strength, toughness, and thickness, Duo is ideal for packaging wines and spirits, gift cards, and different types of rigid exclusive packs and displays.

All Duo-products can be improved with various surface treatments to add desired barrier functions and visual effects – just talk to your local sales representative. 

Application areas

This product is suitable for the following applications:

Förpackning

Förpackning

Grafik

Grafik

Invercote/Inverform
Certifications & Standards

Product related

Possible to order as:

  

100% PEFC certified (PEFC/05-33-105)

FSC® Mix Credit 
(FSC-C110018)

Food safety

Archiving

Toy safety

Certificate no:
TUEV-PEFC-COC-117551

Certificate no:
TUEV-COC-000232

EC 1935/2004

EC 2023/2006

FDA 21 CFR

German BfR XXXVI

Acid free

EN 71 Part 3

EN 71 Part 9
All fibres from sustainable and controlled sources in compliance with the EU Timber Regulation EC 995/2010.
EcoVadis Platinum Medal awarded in 2024 (top 1% of all companies assessed).
Recyclable according to CEPI Recyclability Test Method - Standard Paper Mill Version 2.
 

Mill related

ISO 9001

ISO 14001

ISO 45001

ISO 50001

FSSC 22000

For more detailed information about our certificates, visit holmen.com/boardandpaper/certifications.

Properties - Both sides identical

Toleranser Metod/Anmärkning
Ytvikt (g/m²) 450-770 +/-6% ISO 536
Färg L TS 96.7 +/-0.8 ISO 5631-2
Färg a TS 2.3 +/-0.6 ISO 5631-2
Färg b TS -7.9 +/-1.1 ISO 5631-2
Vithet TS 129 +/-5 ISO 11475
Ljushet R457 TS (%) 94 +/-2 ISO 2470
Ytråhet PPS TS (µm) 0.9 ≤1.4 ISO 8791-4
Glans TS (%) 40 +/-10 ISO 8254-1
Yt-pH TS 8.5 +1/-1.5 -
Färgabsorption TS (%) 35 - -
Ytstyrka IGT delam TS (m/s) 0.7 ≥0.5 ISO 3783
Ytstyrka IGT pick TS (m/s) 1.3 ≥0.8 ISO 3783
Cobb TS (g/m²) 30 ≤40 ISO 535

Common properties

Toleranser Metod/Anmärkning
Ytvikt (g/m²) 450-770 +/-6% ISO 536
Fukt (%) 7.5 +/- 1 ISO 287
Scott Bond (J/m²) 160 NULL Tappi 569
Robinson <0.6 - EN 1230-2

Robinson taint value is below the detection limit of 0.6.  

Grammage dependent properties

Toleranser Metod/Anmärkning
Ytvikt (g/m²) 450 490 530 570 610 670 710 770 +/-6% ISO 536
Tjocklek (µm) 520 600 660 720 790 870 930 1010 +/-6% ISO 534
Caliper (pt) 20.5 23.6 26.0 28.3 31.1 34.3 36.6 39.8 - -
Böjstyvhet 5 grad L (mNm) 104.0 136.0 180.0 226.0 279.0 379.0 460.0 557.0 - ISO 5628
Böjstyvhet 5 grad T (mNm) 54.0 73.0 93.0 116.0 139.0 189.0 225.0 270.0 - ISO 5628
Böjmotstånd L (mN) 1064 1374 1764 2164 2609 3438 3958 4600 -15% ISO 2493-1
Böjmotstånd T (mN) 530 718 893 1108 1311 1765 2044 2407 -15% ISO 2493-1
Böjmoment Taber calc L (mNm) 51 66 85 105 126 166 191 222 - -
Böjmoment Taber calc T (mNm) 26.0 35.0 43.0 54.0 63.0 85.0 99.0 116.0 - -

Bending Moment Taber is a calculated value based on a correlation factor of 20.7.

Test methods

All properties are measured in test climate 23°C/50% RH at Iggesund Mill. Tolerances and max/min levels, when stated, are based upon a 95% confidence interval within each production run. Read more about testing methods in our General Technical Information.

 

Latest version

Access the latest version of this spec sheet on:
holmen.com/boardandpaper/invercote-Duo

Related information

Products

Explore our range of innovative paper products and premium paperboards for graphical and packaging applications.

Applications

Our paper and paperboard products are widely used in luxury packaging, book publishing, direct marketing and more.

Sustainability

At Holmen, we are committed to using renewable materials and managing our resources in a sustainable way.