Q-Connect DL Envelopes Window Self Seal - KF3481

These Q-Connect wallet envelopes feature a convenient address window, making them ideal for profes...

Best current price£18.80from UK Office Direct

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UK Office DirectQ-Connect Dl Envelopes Window Self Seal 90Gsm White (1000 Pack)
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£18.80
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B&QB&Q - Dl Envelopes Window Self Seal 90Gsm White (Pack Of 1000)
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Office StationeryQ-Connect DL Envelopes Window Self Seal 90gsm White 1000 Pack KF3481
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Product Information

Full details

The Q-Connect DL Window Self-Seal Envelopes (KF3481) are designed for office administrators and home-based professionals who require a high-volume, efficient solution for standardized business correspondence. These envelopes provide the significant benefit of a self-seal closure, which saves time during large mail-outs by removing the need for moisture or adhesive tape; however, they are intended for light-to-medium weight documents, as their 90gsm paper construction may be too thin for shipping thick catalogs or multiple booklets.

All features

Model Part NumberKF3481
BrandQ-Connect

Extended Product Information

FAQs

What size is an DL envelope?

A DL envelope measures 110 x 220mm, which is designed to hold an A4 sheet of paper folded into thirds.

Does this envelope require moisture to seal?

No, these are self-seal envelopes featuring a pressure-sensitive adhesive strip that requires no water.

What is the weight of the paper used?

These envelopes are made from 90gsm paper, which is the standard weight for most office and mailing envelopes.

Can I use these envelopes in an inkjet or laser printer?

While the paper is suitable for standard printing, it is recommended to print your address labels or letters before inserting them into the envelope to avoid damage to the printer mechanism.

How many envelopes are in one pack?

Each pack contains 1000 envelopes.

What is the window size?

The address window measures 35 x 89mm, positioned 19mm from the left edge and 18mm from the bottom.

Troubleshooting

Envelope seal is not sticking properly.

Ensure the adhesive strip is free of paper dust or debris, and apply firm, even pressure along the entire length of the flap.

Address is not visible through the window.

Verify that your letter is folded tightly to A4 thirds and that the address block on your document matches the window coordinates of 35 x 89mm.

Envelopes are stuck together in the box.

Gently fan the stack to separate them. If the adhesive has been damaged by humidity, the affected envelopes may need to be discarded.

Pros and Cons

Pros

  • Efficient self-seal closure saves time during mass mailings
  • Pre-cut window aligns with standard business letter formats
  • Large quantity of 1000 envelopes reduces the need for frequent restocking
  • Professional white aesthetic suitable for all corporate communication

Cons

  • 90gsm paper is standard but may feel thin compared to premium envelopes
  • Window size is fixed and may not fit non-standard address layouts
  • Self-seal adhesive can lose effectiveness if stored in extreme humidity

Setup, Compatibility & Care

For optimal results, ensure your document address block is positioned approximately 19mm from the left edge and 18mm from the bottom edge of the sheet to align with the window. When storing these envelopes, keep them in a cool, dry environment. Avoid high heat or high humidity, as these conditions can prematurely activate the self-seal adhesive or cause the paper to ripple, which may result in envelopes sticking together in the box.

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