Blake Secure Tear Resistant Pocket Envelopes - TR8990

These Blake Secure envelopes are designed for maximum durability and security. Constructed from hi...

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Product Information

Full details

The Blake Premium Secure B4 Envelope (TR8990) is designed for professionals and businesses needing maximum protection for high-value documents, brochures, and catalogues. Engineered with 125gsm tear-resistant paper, these envelopes provide a superior level of physical security and durability compared to standard stationery; however, users should note that the specialized material is non-transparent, which may not be suitable for applications requiring a clear window.

All features

Model Part NumberTR8990
BrandBlake

Extended Product Information

FAQs

Are these envelopes windowed?

No, the TR8990 model is a non-window envelope.

What is the weight of the paper used?

The envelopes are made from high-quality 125gsm tear-resistant paper.

Are these envelopes environmentally friendly?

Yes, they are 100 percent recyclable.

What is the dimensions of these envelopes?

The envelopes measure 250 mm in width by 352 mm in length (B4 format).

Is the closure adhesive? Do I need to lick it?

No, these use a peel and seal closure system which requires no moisture.

Can I print on these envelopes?

Yes, these envelopes are fully overprintable.

Troubleshooting

The seal is not sticking properly.

Ensure the sealing area is free from dust or debris and apply firm, consistent pressure across the entire length of the flap.

Difficulty with printer feeding.

Ensure your printer is set to handle heavier 125gsm card/envelope stock and adjust the paper path settings to 'Manual Feed' or 'Envelope' mode.

Pros and Cons

Pros

  • Extremely durable tear-resistant paper stock
  • Professional finish suitable for important business correspondence
  • Convenient peel and seal closure saves time
  • Provides protection against moisture and grease
  • 100% recyclable material

Cons

  • Non-window design requires manual labelling of addresses
  • Premium weight may affect postage costs compared to standard envelopes
  • Specific B4 size may require larger mailing supplies

Setup, Compatibility & Care

To ensure optimal performance and security:

  1. Sealing: Simply peel the protective strip from the adhesive line and press firmly along the flap. No extra adhesive or moisture is required.
  2. Printing: The surface is designed to be overprintable. Use a compatible printer to apply addresses directly to the envelope for a professional appearance.
  3. Storage: Keep in a cool, dry place away from direct sunlight. While the envelopes are water-resistant, keeping them in their original box prevents potential folding or creasing before use.
  4. Handling: Due to the 125gsm thickness, avoid overstuffing the envelope beyond its capacity to prevent stress on the adhesive seam.

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