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Invercote G

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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 layers consist of softwood fibres for strength and flexibility.

Product description

Invercote G is designed for prestige packaging applications and high-end graphical designs where an exceptional aesthetic effect is desired. Invercote G has an ultra-smooth surface with a triple-coated print side that are tailored to reproduce print images and meet the high demands of foil and film lamination, the reverse side is single-coated. It has a matt finish on both sides, excellent whiteness and a patented coating formula that provides outstanding lightfastness, giving the end products a longer life. Invercote G is suitable for aroma and flavour sensitive products as well.

The 200 g/m² grammage version is produced without reverse side coating. Invercote G is also available as linen embossed sheets in all grammages. Invercote G in the grammages 260-380 g/m² is certified as industrially biodegradable and compostable in compliance with the demands in the Directive EN 13432:2000.

Application areas

This product is suitable for the following applications:

packaging

포장

graphics

제도법

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 - Print side

허용 오차 허용 오차 방법/비고
평량 (g/m²) 200 +/-4% 220-380 +/-4% ISO 536
색상 L* - 인쇄면 96.7 +/-0.8 96.7 +/-0.8 ISO 5631-2
색상 a* - 인쇄면 2.3 +/-0.6 2.3 +/-0.6 ISO 5631-2
색상 b* - 인쇄면 -7.9 +/-1.1 -7.9 +/-1.1 ISO 5631-2
백감도 - 인쇄면 129 +/-5 129 +/-5 ISO 11475
ISO 백색도R457 - 인쇄면 (%) 94 +/-2 94 +/-2 ISO 2470
표면 거칠기 PPS - 인쇄면 (µm) 0.9 ≤1.4 0.9 ≤1.4 ISO 8791-4
보드 광택 75° - 인쇄면 (%) 40 +/-10 40 +/-10 ISO 8254-1
표면 강도 IGT블리스터(blister) - 인쇄면 (m/s) 0.7 ≥0.5 0.7 ≥0.5 ISO 3783
표면 강도 IGT픽(pick) - 인쇄면 (m/s) 1.3 ≥0.8 1.3 ≥0.8 ISO 3783
코브 - 인쇄면 (g/m²) 30 ≤40 30 ≤40 ISO 535

Properties - Reverse side

허용 오차 허용 오차 방법/비고
평량 (g/m²) 200 +/-4% 220-380 +/-4% ISO 536
색상 L* - 뒷면 96.4 - 96.5 - ISO 5631-2
색상 a* - 뒷면 2.0 - 1.6 - ISO 5631-2
색상 b* - 뒷면 -4.3 - -7.0 +/-1.1 ISO 5631-2
백감도 - 뒷면 110 - 122 - ISO 11475
ISO 백색도R457 - 뒷면 (%) 90 - 94 - ISO 2470
표면 거칠기 PPS- 뒷면 (µm) - - 5.0 ≤7.0 ISO 8791-4
코브 - 뒷면 (g/m²) 30 ≤40 30 ≤40 ISO 535

Common properties

허용 오차 허용 오차 방법/비고
평량 (g/m²) 200 +/-4% 220-380 +/-4% ISO 536
수분 함량 (%) 6.0 +/-1.0 6.0 +/-1.0 ISO 287
층간 결합도 (J/m²) 160 ≥120 160 ≥120 Tappi 569
로빈슨 염색(Robinson Taint) 검사 <0.6 - <0.6 - EN 1230-2

Robinson taint value is below the detection limit of 0.6.  

Grammage dependent properties

허용 오차 방법/비고
평량 (g/m²) 200 220 240 260 280 300 330 350 380 +/-4% ISO 536
두께 (µm) 235 260 300 330 360 395 435 465 505 +/-4% ISO 534
캘리퍼 (pt) 9.3 10.2 11.8 13.0 14.2 15.6 17.1 18.3 19.9 - ISO 534
불투명도 (%) 95.6 97.0 97.6 98.0 98.4 98.6 98.8 99.0 99.2 - ISO 2471
휨강성 L&W 5° - MD (mNm) 8.2 11.9 16.2 20.8 29.9 38.5 50.8 61.8 77.9 - ISO 5628
휨강성 L&W 5° - CD (mNm) 3.7 5.4 7.5 9.7 12.5 16.0 21.0 25.0 31.0 - ISO 5628
굽힘 저항 L&W 15° - MD (mN) 95 140 190 245 315 405 550 650 820 -15% ISO 2493-1
굽힘 저항 L&W 15° - CD (mN) 45 64 83 107 137 180 230 275 345 -15% ISO 2493-1
굽힘 모멘트 Taber 15° - MD (mNm) 4.6 6.8 9.2 11.8 15.2 19.6 26.5 31.4 39.6 - ISO 2493-2
굽힘 모멘트 Taber 15° - CD (mNm) 2.2 3.1 4.0 5.2 6.6 8.7 11.1 13.3 16.7 - ISO 2493-2
인장 강도 - MD (kN/m) 18.5 20.0 21.5 23.0 24.0 25.5 28.0 29.5 31.0 - ISO 1924-2
인장 강도 - CD (kN/m) 10.0 10.5 11.0 11.5 12.0 12.5 13.5 14.0 14.5 - ISO 1924-2
인열 강도 - MD (mN) 2300 2700 3100 3300 3700 4300 4700 5200 6400 - ISO 1974
인열 강도 - CD (mN) 2350 2800 3300 3600 4000 4600 5100 5600 6400 - ISO 1974

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.

 

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