Page 45 - Bresciani Paper Conservation

Corrugated board
BRESCIANI
Materiali ed Attrezzature
per il Restauro e la Conservazione
K011 –F 1.3 mm
Corrugated board made from ageing resistant material, overall thickness 1.3 mm, natural white in colour. Top ply made from grey-blue archival board, 300 gsm, surface specially treated, dirt-resistant, erasable and rub-proof (dry wiping). Each individual ply is glued moisture-proof. The board is ageing resistant in accordance with the ISO 9706 standard.
Base paper
• 100 % bleached cellulose
• Without the usage of recycling fibres
• Free of wooden fibres
• Kappa level 1 - 2 = lignin-free
• pH 7.5 - 10.0 = acid-free (in accordance with ISO 6588-1:2005)
• Alkaline buffer > 2 % natural calcium carbonate (GCC)
• Sizing: neutral/synthetic (without alum additive)
• Top surface sizing: Cobb60 in accordance with ISO 535 < 25
• Without optical brightening agents
• Lightfastness approx. 7 - 8 (= extremely good) in accordance with the wool
scale (EN ISO 105-B02)
• No bleeding in accordance with DIN ISO 16245:2012
• Photographic Activity Test (PAT) passed in accordance with ISO 18916:2007
• Special surface strengthening (dirt-resistant and erasable)
Glue used for the corrugated board
• Starch-based adhesive • pH > 8.0
• Moisture-proof gumming
DIN EN ISO 9706:2010 Information and documentation - Paper for documents - Requirements for permanence
DIN ISO 16245:2012 Information and documentation - Boxes, file covers and other enclosures, made from cellulosic materials, for storage of paper and parchment documents.
ANSI/ NISO Z.39.48:1992 American National Standard for Permanence of Paper for Publications and Documents in Libraries and Archives
DIN 6738:2007 Highest level of permanency LDK 24-85
Corrugated board F 1.3 mm – short grain "SG"
Items K011-347.
Top ply light grey ; base natural white
"Dimension A" defines the flute length (A = 180 cm)
"Dimension B" defines the cut-off length (B = 120 cm)
Syntax A x B cm = 180 x 120 cm
The syntax is also applicable for the paper grain direction. All the three plies of paper are cut short grain.
Top ply, 300 gsm archival board grey blue F-Flute 120 gsm natural white
Lower ply 190 gsm natural white
BRESCIANI s.r.l. - via Breda 142 - 20126 Milano - tel. 02.27002121 r.a. - fax 02.2576184 www.brescianisrl.it - e-mail: info@brescianisrl.it Pag.44/97