Clear Packing List Envelopes 4.5″ x 6 1000/Case

Invoice Sleeve & Return Authorization Packing List Envelopes — 4.5″ x 6″

These 4.5×6 clear packing list envelopes are designed for high-volume shipping operations that require secure document attachment on small and mid-size parcels. The pressure-sensitive adhesive backing bonds to virtually any standard shipping surface — corrugated, poly mailers, or woven polypropylene — without additional tape. Side-loading design with tamper-evident construction protects invoices, return authorizations, and compliance documents from moisture and abrasion in transit.

Specs: 4.5″ x 6″ (exterior) | Polypropylene | 1000/Case | Pressure-Sensitive Adhesive | Side-Loading

Applications

Invoice and return authorization slips on outbound shipments, small packing list attachment on DTC parcels, compliance document sleeves on pharmaceutical or nutraceutical shipments, instruction sheet enclosure for small appliance and hardware orders, and customs declaration document attachment for international shipments.

Features

Pressure-sensitive adhesive backing provides fast peel-and-stick application — no separate tape required. Side-loading format allows document insertion without unsealing the envelope face. Tamper-evident construction provides chain-of-custody integrity. Protects documents from moisture, dirt, and abrasion. Interior dimensions are approximately 10mm smaller per side than exterior to account for adhesive margins.

Material Notes

Clear polypropylene construction provides document visibility without opening. Adhesive rated for standard shipping surfaces including corrugated cartons and poly mailers. Not recommended for heavily coated or waxed surfaces without adhesion testing.

Use Case Notes

The 4.5×6 format accommodates standard folded invoices and A6-size documents. Interior usable dimensions are approximately 4.1″ x 5.6″ after adhesive margin. At 1000 per case, this volume suits fulfillment operations processing hundreds of shipments daily. Side-loading allows operators to pre-stage documents before final pack without adhesive engagement.

Common Questions

Q: What surfaces does the adhesive work on?
A: The pressure-sensitive backing adheres to most standard corrugated, kraft, and poly mailer surfaces. Test on heavily coated or waxed cartons before production use.

Q: What are the interior dimensions?
A: Interior is approximately 10mm (about 3/8″) smaller than exterior on each side — approximately 4.1″ x 5.6″.

Q: How many per case?
A: 1000 envelopes per case.

Why Buy

High-volume case count supports sustained fulfillment throughput. Pressure-sensitive application eliminates taping labor. Tamper-evident side-loading construction provides document integrity from pack station through final delivery.