Three-side seal bags

Three-side seal pouches for portions, powders and samples

Three-side seal bags give a clean flat format for small portions, powders, trial packs and products that need controlled sealing.

01Flat pouch and sample-pack uses

Powder portions

Flat pouches for powder drink mixes, supplements, spices and dry blends.

Sample packs

Small printed packs for trial sizes, inserts and promotional sampling.

Small snacks and refills

Flat retail packs for candy, dried food, wipes or compact refill products.

02Material, structure and finish options to confirm

Barrier and tear control

Choose material around moisture, oxygen and light sensitivity, then add tear notch or easy-open features if the consumer needs a clean first opening.

Portion and repeat length

For automated filling, confirm pouch width, cut length, seal direction and film structure before artwork is locked.

Flat pouch route

Confirm seal margin, opening side, tear notch, hang hole, product form and artwork clearance before production planning.

03Print, lamination and bag-making route

Product brief

Confirm product type, size, fill weight or dimensions, storage condition and packing route.

Format choice

Compare the selected bag with adjacent formats before locking structure.

Material and finish

Discuss clear, metallized, matte, gloss, paper-look or other routes only after product use is known.

Print and converting

Check dieline, print colors, barcode, zipper, window, hang hole, seal area and gusset details.

Sample review

Review filled shape, seal margin, print alignment and carton packing before bulk production.

04Choose the practical route before production planning

Flat or small product needs simple pouch

Discuss three-side seal bag with opening and seal route.

Send: Product size, fill weight, opening side and quantity.

Sample or portion pack is the goal

Review four-side seal or roll-film alternative if machine packed.

Send: Portion size, fill method, artwork and repeat data if needed.

Hang display is needed

Plan hang hole, header area and seal clearance.

Send: Display method, hole position, product weight and carton packing.

05Send these details for quote review

Product size and fill weight

Opening side and tear notch needs

Hang hole or header display need

Artwork clearance and seal margin

Target size, quantity range and delivery country or region

Material or structure preference if already known

Print colors, surface finish and print file readiness

Dieline, sample photo, current package photo or size sketch

06Compare related packaging formats

Applications

Flat pouch and sample-pack uses

Three-side seal bags suit flat products, samples, powders, small retail packs and single-use pouches where seal area and opening position matter.

Use case

Powder portions

Flat pouches for powder drink mixes, supplements, spices and dry blends.

Use case

Sample packs

Small printed packs for trial sizes, inserts and promotional sampling.

Use case

Small snacks and refills

Flat retail packs for candy, dried food, wipes or compact refill products.

Bag and material fit

Material, structure and finish options to confirm

These options are planning routes, not fixed specifications. Final material and construction should be confirmed against product use, artwork and sample requirements.

Material route

Barrier and tear control

Choose material around moisture, oxygen and light sensitivity, then add tear notch or easy-open features if the consumer needs a clean first opening.

Production handoff

Portion and repeat length

For automated filling, confirm pouch width, cut length, seal direction and film structure before artwork is locked.

Flat pouch route

Flat pouch route

Confirm seal margin, opening side, tear notch, hang hole, product form and artwork clearance before production planning.

Material and print route

Print, lamination and bag-making route

The packaging route connects artwork, material, print, lamination, bag making, QC focus and sample review using confirmed project details.

  1. 01

    Product brief

    Confirm product type, size, fill weight or dimensions, storage condition and packing route.

  2. 02

    Format choice

    Compare the selected bag with adjacent formats before locking structure.

  3. 03

    Material and finish

    Discuss clear, metallized, matte, gloss, paper-look or other routes only after product use is known.

  4. 04

    Print and converting

    Check dieline, print colors, barcode, zipper, window, hang hole, seal area and gusset details.

  5. 05

    Sample review

    Review filled shape, seal margin, print alignment and carton packing before bulk production.

Production check

Seal cleanliness matters

Powder, sugar, salt or oil near the seal can affect sealing. Confirm fill method and seal area before finalizing size.

Buying checks

Choose the practical route before production planning

1

When this applies

Flat or small product needs simple pouch

Packaging advice

Discuss three-side seal bag with opening and seal route.

Send first

Product size, fill weight, opening side and quantity.

2

When this applies

Sample or portion pack is the goal

Packaging advice

Review four-side seal or roll-film alternative if machine packed.

Send first

Portion size, fill method, artwork and repeat data if needed.

3

When this applies

Hang display is needed

Packaging advice

Plan hang hole, header area and seal clearance.

Send first

Display method, hole position, product weight and carton packing.

RFQ details

Send these details for quote review

A useful RFQ connects product behavior, format choice, print file readiness, quantity and delivery country or region so the factory can check the right route.

  • Product size and fill weight
  • Opening side and tear notch needs
  • Hang hole or header display need
  • Artwork clearance and seal margin
  • Target size, quantity range and delivery country or region
  • Material or structure preference if already known
  • Print colors, surface finish and print file readiness
  • Dieline, sample photo, current package photo or size sketch

Quote request

Send three-side-seal bag details

Include fill weight, pouch size, material target, opening features, print file readiness and quantity by SKU.

WhatsApp: +86 159 1896 4229 Phone: 15918964229 / 13798182413 Email: sales@yufengpackco.com Address: Jinping District, Shantou, Guangdong, China
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