9" x 12" Booklet Envelopes, Starburst Blue, 28 lb., 500/Box

Starburst Blue 9″ x 12″ Open-Side Booklet Envelopes

Make reports, presentation materials, and document packets easy to recognize with Starburst Blue 9″ x 12″ booklet envelopes. The vivid blue paper provides a noticeable alternative to ordinary white and manila envelopes while allowing large documents to remain flat and unfolded.

These open-side booklet envelopes have their opening along the longer dimension, providing a wide opening for inserting booklets, brochures, reports, photographs, and other large materials. Two side seams under provide dependable construction, while the traditional remoistening seal closes securely after the adhesive is moistened.

Item 7423 is manufactured from durable 28 lb. recycled, brightly colored sulphite paper with an acid-free vellum finish. Each box contains 500 Starburst Blue envelopes for high-volume mailing, presentation, and office-organizing applications.

Product Specifications

Why Choose Starburst Blue Booklet Envelopes?

• Noticeable blue color: Starburst Blue helps mailings and document packets stand apart from standard white or manila envelopes.
• Wide booklet opening: The opening runs along the longer side for easier insertion of large and multi-page materials.
• Documents remain flat: The 9″ x 12″ size accommodates many reports, brochures, photographs, and handouts without folding.
• Substantial paper weight: Durable 28 lb. sulphite paper provides a heavier feel than lightweight mailing envelopes.
• Reliable construction: Two side seams under support everyday mailing and document-handling applications.
• Traditional closure: The remoistening adhesive seals after it is moistened and the flap is pressed closed.
• Recycled, acid-free paper: Starburst paper combines recycled content with an acid-free vellum finish.

Common Applications

Starburst Blue envelopes are well suited for large materials that should remain flat or need to be identified by color.

• Reports and presentation packets
• Booklets, catalogs, and brochures
• Marketing and promotional materials
• Photographs and printed artwork
• School and university communications
• New-client and welcome packets
• Internal departmental routing
• Color-coded projects and document groups

Choosing the Correct 9″ x 12″ Envelope

Booklet Envelopes vs. Catalog Envelopes

Booklet envelopes open along the longer dimension, creating a wide opening for reports, booklets, and presentation packets. Catalog envelopes open along the shorter dimension and are loaded lengthwise.

Remoistening Seal vs. Self-Seal

These envelopes have a traditional remoistening seal. The adhesive must be moistened before closing the flap. They do not have a peel-away liner or pressure-sensitive self-seal closure.

Frequently Asked Questions

What size are these Starburst Blue envelopes?

Each booklet envelope measures 9 inches by 12 inches.

Where is the envelope opening located?

The opening runs along the longer dimension, providing a wide opening for inserting documents and booklet-style materials.

What seam construction do these envelopes have?

They are manufactured with two side seams under. They are not center-seam envelopes.

Are these self-sealing envelopes?

No. They have a traditional remoistening seal that must be moistened before the flap is closed.

What type of paper is used?

These envelopes are made from 28 lb. recycled, brightly colored sulphite paper with an acid-free vellum finish.

Do the envelopes have a window?

No. Item 7423 is a solid-color booklet envelope without a window.

How many envelopes are included?

Each box contains 500 Starburst Blue booklet envelopes.

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