#9 White Paper Security Envelopes

Product Details:

Manufacturer: Sun Kee Envelopes Limited

Product Dimensions: 3 7/8"x8 7/8"

Color: Bright White

Seal Closure: Peel and Stick

Paper Weight: 100 gsm

Lead time: Depends on Orders’ Quantity

About the product:

The #9 security white paper envelopes has the dimension of 8 7/8"x3 7/8", which is widely used in the mailing business. With none windows on the envelopes' surfaces, the security patterns could enable your confidential information being transfered safely. 

The Gumming Seal system is also ideal to meet your automatically inserting by using the inserting machines, so that your mails could be accomodated by the #9 paper envelopes and delivered immediately.  

Here are the envelopes you can find in our categories:

White Plain Letter Envelope

White Airmail Envelope

Brown Paper Envelope

Golden Kraft Envelope

Double Windows Self Seal Envelopes

Double Windows Security Envelopes

White Paper CD Envelope

Check Envelopes

Catalogue Envelopes

White Commercial Paper Envelope

And so on! 

Not what you need? Don’t hesitate to contact us now!

As an envelope manufacturer, Sun Kee Envelopes Limited provides two types of envelope sealing, namely “Gummed”* and “Peel & Seal”**. As our strength, we are capable to produce premium Peel & Seal envelopes at high efficiency.

In fact, Sun Kee Envelopes Limited is one of the few manufacturers in China that owns fully automated equipment. When producing Peel & Seal envelopes, our advanced machines manufacture 800 envelopes per minute (in comparison to semi-automated equipment that produces 250 to 300 envelopes per minute). This equipment enables us to handle large quantity orders with short lead times.

*Gummed = water is needed to activate the flap gum before sealing the envelope
**Peel & Seal = envelopes that have a removable strip to provide a quick, clean seal upon contact without moistening

Photos of the Envelopes: