A three-side-seal pouch is a flat flexible barrier package produced by heat-sealing three perimeter edges (left, right, and bottom) while leaving one open end for filling. Because it has no expanding side or bottom gussets, it lays completely flat, making it the industry standard for vacuum-packed foods, sample sachets, spices, and single-serve portions.

Essential Key Points

Flat perimeter seals provide maximum seal strength without gusset fold intersections.
Optimal format for commercial vacuum packing of perishable foods and active powders.
Zero dead-space allows dense stacking inside shipping cartons and retail pegboard hanging.
Pactrum provides 4 standardized SKUs (L041–L044) in 7×10 in and 9×9.5 in dimensions.

Comparison Overview

Pactrum SKU	Dimension (in)	Dimension (mm)	Finish	Common Applications
L041	7 × 10 in	180 × 250 mm	Transparent	Dried herbs, bulk seasonings, frozen foods
L042	7 × 10 in	180 × 250 mm	Transparent + Metallised	Whole spices, specialty salts, tea blends
L043	9 × 9.5 in	230 × 240 mm	Metallised	Ground spice blends, pharmaceutical powders
L044	9 × 9.5 in	230 × 240 mm	Transparent + Metallised	Industrial dry chemicals, snack mixes

Flat High-Barrier Containment

When standing shelf presentation is not required, three-side-seal pouches offer the most material-efficient and reliable barrier containment in the packaging industry.

Sealing Integrity & Vacuum Capability

Gusseted pouches require sealing across multiple folded layers where the gusset joins the side wall. Three-side-seal pouches bond two uniform film webs directly together, ensuring consistent heat-seal hermeticity. This makes them ideal for moisture-sensitive spices, dehydrated foods, and medical supplies.

CATALOGUE DISCOVERY

Recommended Three-Side-Seal Pouches

Standardized specifications relevant to What Is a Three-Side-Seal Pouch?.

View all 81 SKUs

L041

Transparent

7 × 10 in Transparent Three-Side-Seal Pouch

7 × 10 in

Made to Spec

Custom

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L042

Transparent + Metallised

7 × 10 in Transparent + Metallised Three-Side-Seal Pouch

7 × 10 in

Made to Spec

Custom

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L043

Metallised

9 × 9.5 in Metallised Three-Side-Seal Pouch

9 × 9.5 in

Made to Spec

Custom

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Frequently Asked Questions

Are three-side-seal pouches suitable for vacuum sealing?

Yes. Three-side-seal pouches are the premier format for commercial vacuum chamber sealers because there are no side gussets that could create micro-channels for air leakage.

How do customers open a three-side-seal pouch?

Pactrum three-side-seal pouches include laser-assisted tear notches on both sides below the top sealing zone, allowing effortless tearing without scissors.

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