Invercote GP + Aluprint

Invercote GP + Aluprint

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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 layer consists of softwood fibres for strength and flexibility. The coating composition is adjusted in different general directions for the product family to satisfy printability requirements.

Product description

Invercote GP is a solid bleached board of medium density. The printing side is fully coated and finished to a matt level. The reverse side is surface sized. Invercote GP fulfills the needs for very demanding packaging applications with high demands on printed images. Invercote GP can be reverse side extrusion coated with different plastics and laminated with aluminium foil to meet a wide range of packaging needs.

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).
 

Mill related

ISO 9001

ISO 14001

ISO 45001

ISO 50001

FSSC 22000

For more detailed information about our certificates, visit iggesund.com/certificates.

Properties - Print side

Tolerances Methods/Remarks
Grammage (g/m²) 210-350 +/-5% ISO 536
Colour L* - PS 96.7 - ISO 5631-2
Colour a* - PS 2.5 - ISO 5631-2
Colour b* - PS -7.3 +/-1.1 ISO 5631-2
Whiteness - PS 124 - ISO 11475
ISO Brightness R457 - PS (%) 94 - ISO 2470
Surface roughness PPS - PS (µm) 1.5 ≤2.0 ISO 8791-4
Board gloss 75° - PS (%) 30 +20/-10 ISO 8254-1
Surface pH - PS 8.5 +1.0/-1.5 -
Ink Absorption - PS (%) 40 - -
Surface strength IGT blister - PS (m/s) 0.7 ≥0.5 ISO 3783
Surface strength IGT pick - PS (m/s) 1.3 ≥0.8 ISO 3783
Cobb - PS (g/m²) 30 ≤40 ISO 535

For more information about our testing methods for Surface ph and Ink Absorption, read more in our General Technical Information.

Properties - Reverse side

Tolerances Methods/Remarks
Grammage (g/m²) 210-350 +/-5% ISO 536
Colour L* - RS 96.4 - ISO 5631-2
Colour a* - RS 1.9 - ISO 5631-2
Colour b* - RS -4.3 - ISO 5631-2
Whiteness - RS 110 - ISO 11475
ISO Brightness R457 - RS (%) 90 - ISO 2470
Cobb - RS (g/m²) 30 ≤40 ISO 535

Common properties

Tolerances Methods/Remarks
Grammage (g/m²) 210-350 +/-5% ISO 536
Moisture content (%) 6.5 +/-1.0 ISO 287
Ply bond (J/m²) 160 ≥110 Tappi 569
Edge Wick test (kg/m²) 1.5 ≤2.5 -

For more information about our testing methods for Edge Wick test, read more in our General Technical Information.

Grammage dependent properties

Tolerances Methods/Remarks
Grammage (g/m²) 210 230 250 270 300 330 350 +/-5% ISO 536
Thickness (µm) 275 305 330 360 400 440 470 +/-5% ISO 534
Caliper (pt) 10.8 12.0 13.0 14.2 15.7 17.3 18.5 - ISO 534
Bending stiffness L&W 5° - MD (mNm) 12.0 16.0 21.0 26.0 38.5 50.8 61.8 - ISO 5628
Bending stiffness L&W 5° - CD (mNm) 5.3 7.3 9.4 11.9 16.0 21.9 26.1 - ISO 5628
Bending resistance L&W 15° - MD (mN) 125 188 240 304 414 550 657 -15% ISO 2493-1
Bending resistance L&W 15° - CD (mN) 62 84 105 133 180 230 275 -15% ISO 2493-1
Bending moment Taber 15° - MD (mNm) 6 9.1 11.6 14.7 20 26.6 31.7 - ISO 2493-2
Bending moment Taber 15° - CD (mNm) 3.0 4.0 5.1 6.4 8.7 11.1 13.3 - ISO 2493-2
Tensile strength - MD (kN/m) 17.0 18.0 19.0 20.0 22.0 26.5 28.0 - ISO 1924-2
Tensile strength - CD (kN/m) 9.0 9.5 10.0 10.5 11.5 12.0 12.5 - ISO 1924-2
Tearing resistance - MD (mN) 2700 3100 3400 3700 4300 4700 4900 - ISO 1974
Tearing resistance - CD (mN) 2900 3300 3600 4100 4500 5100 5300 - ISO 1974

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

Aluprint Properties

Test method

All properties are measured in test climate 23°C/50% RH at Iggesund mill. Tolerances and max/min levels, when stated, are based upon 95% confidence interval within each production run.

Read more about testing methods in our section about General Technical Information.

 

Online version

Access the online version of this spec sheet on: 
iggesund.com/invercote-aluprint