Made from corrugated cardboard these envelopes provide extra strength and security for transit. Security features include; increased capacity internal fold lines, rip strips and peal and seal sealing, resulting in a tamper proof postal solution.
	
- General
- Made from corrugated cardboard these envelopes provide extra strength and security for transit. Security features include; increased capacity internal fold lines, rip strips and peal and seal sealing, resulting in a tamper proof postal solution.
 
	| Type | Board Backed Envelopes | 
| Manufacturer | Blake Envelopes | 
| Brand | Purely Packaging | 
| Eco-Aware | Yes | 
| Recycled Product | 100% Recycled Material | 
| Biodegradable | Yes | 
| Country of Origin | Germany | 
| Depth (mm) | 463 | 
| Height (mm) | 463 | 
| OEM | PCE40 | 
| Pre or Post Consumer? | Pre Consumer | 
| Recyclable (Yes/No) | Yes | 
| Recyclable Percentage | 70 | 
| Width (mm) | 433 | 
| Colour | Brown | 
| ISO 14001 (Y/N) | Yes | 
| Green Product | Yes | 
| Size | Other Sizes | 
| Material | Corrugated Board | 
| Closure | Peel & Seal | 
| Biodegradable Information | 70 | 
| Contains timber or derived materials | Yes | 
| Species of Tree | Picea Abies/Pinus Sylvestris | 
| Country of Harvest | EU | 
| Proof of Legality Obtained | Yes | 
| Grammage | 300gsm | 
| Pre Consumer Recycled Content | 65 | 
| Minimum Recycled Content (%) | 30 | 
| Dimensions | 353x250mm | 
| Gusset | No Gusset | 
| Envelope Closure | Peel and Seal | 
| Envelope Size | A4 Plus | 
| Accreditation | ISO 14001 | 
| Envelope Grade | Heavy Weight | 
| Packing Type | Document Envelope | 
| Envelope Colour | Kraft | 
| Exertis Code | 40800BL | 
| 2024 UK catalogue page no | 350 | 
 
	| Books | 
| Catalogues | 
| CDs & DVDs | 
| Online Fulfilment |