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Custom packaging manufacturer since 2013 — pouches, boxes and food service packaging

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Three Side Seal Pouches

Three side seal pouches are the flat sachet: folded once and sealed on the other three edges, with no gusset at all. It is the flattest, lowest-film format we run and the cheapest per pack, made from 1 g single doses upward in foil and PET/PE, with smell-proof structures and resealable zippers available. It lies flat, posts at letter rates and prints across one uninterrupted face with no fold crossing the artwork, which is why samples, single portions and cosmetics use it.

In this range42 products

Minimum orderFrom 1,000 pieces

SamplesStock samples free

Lead time15-25 days after approval

How a three side seal pouch is built

Folded Once, Sealed on the Other Three Edges

The simplest construction here: one web folded at the bottom and sealed up both sides and across the top. No gusset, nothing to open under fill weight, nothing to specify wrong. The pack lies flat, which is exactly what a sample, a sachet or a single portion needs.

Flat Is an Advantage, Not a Compromise

Below about 50 g a stand up pouch does not stand anyway. A three side seal is honest about that, costs less, and prints beautifully because the whole front is one uninterrupted face with no folds crossing the artwork. It also posts at letter rates, which matters for sampling and subscription boxes.

Where It Is Used

  • Sample sachets alongside a retail pack, printed from the same artwork family
  • Single-serve coffee, spice and supplement portions
  • Face masks, wipes and cosmetic sachets
  • Flat foil pouches for high-barrier or light-sensitive contents
  • Bulk and industrial fills up to 25 kg, where standing is irrelevant

What Can Be Added

Tear notches, hang holes, euro slots, zippers where the contents are used more than once, and round corners. A drip coffee sachet is this construction with a filter inside it.

Narrow it down

Where Three Side Seal Pouches Sits in the Range

The numbers are how many packs in this range are also in that one, counted from the catalogue rather than chosen by hand.

Frequently asked

Specifying Three Side Seal Pouches: The Questions That Decide It

Why is it called three side seal?

The film is folded at the bottom and sealed up both sides and across the top — three sealed edges and one fold. Some suppliers call the same thing a flat pouch or a sachet.

Is there a four side seal version?

Yes, made from two separate webs with a seal on all four edges. It gives a neater bottom edge and a slightly different look; we quote either.

Why choose it over a stand up pouch?

Below about 50 g a stand up pouch does not stand anyway. A flat pouch is honest about that, costs less, prints on one uninterrupted face and posts at letter rates.

How small can a sachet be?

Down to a few grams. At that size the seal land takes up a large share of the material, so the price stops falling with the fill weight.

Can a flat pouch have a zipper?

Yes, welded under the top seal. It is worth it only where the contents are used more than once — on a single portion it is film spent on nothing.

How do you keep it from tearing when opened?

A tear notch, positioned so the tear runs straight across rather than diagonally down. On foil laminates a laser score gives an even cleaner line.

Can these be used for wet products?

Yes, with the right sealant, and up to retort with a retort-grade laminate. Wet fills need a wider seal land than dry ones, which we allow for in the dieline.

What is the largest flat pouch you make?

2 kg for retail, and considerably larger for bulk and industrial fills where standing on a shelf is irrelevant.

Does it work as a sample of a retail pack?

That is what most of this range is bought for: the same coffee, protein or spice blend as the main pack, printed from the same artwork family so it reads as one brand.

Can I have a hang hole or euro slot?

Both. They need seal land around them, so tell us before the dieline is drawn rather than after the artwork is approved.

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