DIT PACKAGING / CUSTOM FLEXIBLE PACKAGING
Custom printed three-side seal pouches
DIT Packaging supplies custom printed three-side seal pouches: flat plastic bags with three heat-sealed edges and one open filling edge. Specify your size, laminate and artwork; the remaining edge is sealed after filling. Share your product, quantity and filling method to request a project quotation.
At a glance
- Construction
- Three heat-sealed edges; one edge left open for filling and final sealing.
- Size to specify
- Finished width × height in mm, seal widths and the open filling edge.
- Custom options
- Artwork, laminate, thickness and compatible notch or hanging-hole positions.
- Start your brief
- Product dimensions or fill quantity, a reference drawing and quantity per design.
Not sure about a detail? Start with your product and quantity.
Download a blank packaging quotation checklist (.txt) · Fill in what you know and send it to Jack.
Do you need empty pouches or film for a packing machine?
Choose the supply format before comparing prices. A premade three-side seal pouch arrives as an individual empty bag. Rollstock arrives as film that your equipment forms into a pack. A machine described as a flow wrapper does not by itself establish the finished seal layout; confirm that layout with your equipment supplier.
| Your packing process | Supply to discuss | Information needed |
|---|---|---|
| You fill and close individual flat bags | Premade three-side seal pouches | Outside size, open edge, seal widths, product and quantity per design. |
| Your line forms packs from a continuous web | Printed rollstock | Machine film specification, web width, print repeat, eye marks and unwind direction. |
| Your reference pack has a seam running down the back | Center-seal construction | Back-seam layout, end seals, any side gussets and whether you need bags or rolls. |
Confirm the open edge before production
The open filling edge is part of the specification. On a drawing, mark the three edges supplied sealed and the edge supplied open. Also show which direction the printed front should face when the bag enters your filling process. Do not rely on the word “top” without an orientation reference.
Describe manual or machine filling, the product shape and the sealing equipment. Access through the opening and room for the final seal need to work together. A filled reference sample can be helpful, but the final opening and seal layout should still be confirmed on the production drawing.
Separate outside dimensions from filling space
Provide finished outside width × height in millimetres, then identify the seal widths. The usable cavity is smaller than the outside outline because the sealed edges occupy space. A quoted outside size therefore does not by itself confirm whether a product will fit.
State total thickness with its unit and send a dimensioned sketch where possible. If replacing a current bag, explain whether its size works well or whether you need more filling room. Do not change only the external dimensions while assuming the existing seal and artwork layout will remain suitable.
| Detail | What to identify |
|---|---|
| Finished outline | Outside width and height, with units. |
| Seal layout | Three sealed edges, their widths and the remaining open edge. |
| Filling clearance | Product dimensions or fill quantity, plus room required for final sealing. |
| Optional features | Tear-notch or hanging-hole position relative to the seal and printed front. |
Match the material and print layout to use
Share the contents, storage conditions, intended shelf life and filling temperature where relevant. These details guide the material discussion. Clear and barrier-laminate options are not interchangeable simply because they can be made into the same outside shape.
Plan front and back artwork with the seal areas, opening and any optional tear notch or hanging hole visible on the layout. Keep important text and required product information within the approved printable area. Final margins and feature positions should come from the agreed production layout.
If supporting test documents are needed for your product or market, identify the requirement in the inquiry. A report must be reviewed for its material, scope and date; it should not be treated as evidence for every pouch construction.
Send a specification for pricing and samples
Include quantity per artwork and size, the proposed laminate or intended contents, the open-edge drawing and the delivery destination. State whether the request concerns a new design or a replacement for an existing bag. Both digital and gravure printing can be discussed around the project.
Selected digital-print projects may start from 500 pieces, subject to confirmation of the size, material and quantity for each design. Gravure printing starts from 50,000 pieces; confirm the applicable order basis in your quotation. These are different print routes, so a 500-piece inquiry should not be treated as a gravure order.
Before approving production, check a suitable sample with your actual product and filling process. Review access through the open edge, usable cavity, clearance for the final seal and seal results. Agree whether the sample is for fit, print appearance or the final material construction; one sample does not necessarily validate all three. Sample costs, production timing and delivery should be identified in the quotation.
YOUR PRODUCT. YOUR SPECIFICATION.
Request a packaging quote
Discuss custom printed three-side seal pouches with Jack. Start with what you pack and your reply email. Leave undecided details open.
- Tell us your product and quantity.
- We review the format, material and sample options.
- Confirm the specification, price and timing before ordering.
PRODUCTION BEHIND YOUR PACKAGING
Digital and gravure options for your project
DIT Packaging serves overseas buyers, supported by digital production in Guangzhou and gravure production in Shaoguan. The printing route is reviewed against your specification and order plan.
Company-supplied production photos. View our production overview · Read production licenses and their named holders
Buyer questions
Will all four sides arrive sealed?
No. The requested three-side seal construction is supplied with three sealed edges and one open edge for filling. The opening and the edge to be sealed after filling must be identified before production.
Can I specify which edge remains open?
Include the preferred opening on a drawing and show the artwork orientation and filling method. DIT will review the requested arrangement with the construction before confirming it.
Is a three-side seal pouch the same as rollstock for a flow wrapper?
No. A premade pouch is an individual empty bag with an agreed filling opening. Rollstock is film that your machine forms and seals. Confirm the machine specification and resulting seam layout before requesting a rollstock quote; DIT supplies packaging, not the packing machine.
Will this pouch stand upright like a stand-up pouch?
This flat format does not have the expandable standing bottom of a stand-up pouch. If upright retail presentation is a priority, compare a stand-up pouch or a flat-bottom bag.
YOUR NEXT STEP
Send Jack your packaging brief
Share your product, approximate quantity, bag dimensions and delivery destination. If a detail is undecided, say so; the specification can be reviewed before quotation.
jack@ditpackaging.com · +86 188 9665 3135
Guangzhou DIT Packaging Trading Co., Ltd.
广州迪爱特包装贸易有限公司
Supported by digital production in Guangzhou and gravure production in Shaoguan. See production photos and production licenses with their named holders.