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White vellum-finish #7-1/2 envelopes with clear poly window, diagonal seam, box of 500

WESTERN STATES

WESTERN STATES #7-1/2 Poly Window Envelopes 3-15/16 x 7-1/2 24# White Diagonal Seam 500/Box

SKU CH-T8J8-5KZAS

White SFI-certified sulphite envelopes with poly window, diagonal seam and vellum finish, 500 per box

  • SFI certified paper supports responsible forestry
  • 92% brightness ensures crisp document presentation
  • Poly window protects contents while showing address
  • Diagonal seam construction adds durability for mailing
  • 500 envelopes per box supplies high-volume needs

Poly Window Envelope Specifications

These #7-1/2 poly window envelopes measure 3-15/16 by 7-1/2 inches and use 24# white sulphite paper with a vellum finish. The SFI-certified stock delivers 92% brightness for clean document presentation. A diagonal seam construction and remoistening seal complete the standard commercial design. Each box contains 500 envelopes for high-volume mailing needs.

Build Integration And Handling

The A-style poly window sits 1-1/8 by 4-3/4 inches, positioned 3/4 inch from the left edge and 1/2 inch from the bottom. This fixed placement suits addresses printed on matching letterhead without manual alignment. The 5.5-pound box weight allows easy shelf storage and single-person transport to mailing stations. Diagonal seams reduce bulk when stacked in feeder trays.

Sustained Use Behaviour

White sulphite paper maintains consistent feed reliability through high-volume print runs without excessive dust or curl. The poly window film resists fogging and static buildup during continuous machine insertion cycles. Remoistening adhesive activates reliably after extended storage in typical office humidity ranges. Carton quantities of 5000 support uninterrupted production schedules.

Highlights

  • SFI certified paper supports responsible forestry
  • 92% brightness ensures crisp document presentation
  • Poly window protects contents while showing address
  • Diagonal seam construction adds durability for mailing
  • 500 envelopes per box supplies high-volume needs

Specifications

BrandThe Envelope Supplies Shop

Questions about this item

Will the 24# paper weight hold up under high-volume daily mailing?

The 24# white sulphite stock with vellum finish resists tearing during repeated handling and machine insertion, supporting full 500-envelope box runs without jamming.

Do the envelopes curl or jam in a laser printer after hours of continuous printing?

SFI-certified 92% brightness sulphite lays flat through heated fusers; the diagonal seam and remoistening seal stay intact without edge lift or adhesive bleed.

What printer specs are needed to feed the 3.9375 x 7.5 inch size with a 1-1/8 x 4-3/4 poly window?

Any desktop laser or inkjet with a straight-through manual feed tray accepting custom sizes down to 3.9375 inches wide and 7.5 inches long will process these envelopes.

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