Tipos de envases flexibles: qué bolsa se adapta a tu producto
Relaciona los tipos de envases flexibles con tu producto: pico vertedor, retort, stand-up, fondo plano, cierre…
| Parámetro | Especificación |
|---|---|
| Estructura típica | PET / AL / PE, exterior de OPP mate o papel kraft |
| Capa de lámina | Lámina de aluminio, normalmente de 7–9 µm |
| Impresión | Digital o huecograbado, hasta 9 colores |
| Pedido mínimo por diseño | Digital 1.000 uds.; huecograbado 10.000 uds. |
| Accesorios | Cierre zip, muesca de rasgado, válvula de desgasificación, orificio para colgar, ventana |
| Contacto con alimentos | Película de PE probada según FDA 21 CFR |
| Tiempo de producción | 7–15 días después de la aprobación de la arte |
2005
Making pouches since
Since 2005, we have printed, laminated and converted aluminum foil stand up pouches in our own Shenzhen plant.
All work runs in our 6,520 m² cleanroom plant on 30+ printing and converting machines, with 9-colour printing. Pouches are leak-tested before shipment. We supply coffee, snack and pet food brands and importers.
6,520 m²
Production area
9
Print colours
30+
Machines in-house
The foil does the barrier work. The other layers carry the print and make the seal.
A common structure is PET 12 µm, then AL 7 µm, then PE 80–120 µm. The outer PET carries the reverse-printed artwork. The foil sits in the middle, and the PE inner layer forms the heat seal. Intact foil usually tests below 0.1 g/m²/day for both oxygen and water vapour, and it blocks visible and UV light completely. There is one trade-off. Foil can develop pinholes if the pouch is creased hard over and over, so for heavy fills we may suggest a thicker foil or a stronger middle layer.
Roasted coffee loses aroma through oxidation. Powders and spices clump when they take up moisture. Fats in pet treats and snacks go rancid with light and oxygen. Tea loses volatile oils in a few weeks behind a weak barrier. All of these products have a shelf life measured in months, and that is the case foil is chosen for.
The gusseted bottom lets the pouch stand on its own, so the front panel faces the shopper. The front, back and gusset can all carry full print. A matte, gloss or kraft-paper outer layer changes the finish without changing the foil barrier.
All of these products need a barrier. What changes is the fittings and the gauge.
Freshly roasted beans keep releasing CO₂. A one-way degassing valve lets that gas out and stops the pouch from swelling. Snacks and tea get opened many times, so a press-to-close zipper matters more for them than extra gauge. A tear notch above the zipper gives a clean first opening.
With fine powders and spices, the risk is product getting into the seal area during filling and leaving a weak seal. A wider seal and a reliable zipper track handle this better than adding foil. For pet food, the fill weight sets the bag size, the gusset depth and the PE thickness, because a heavy bag puts more load on the bottom seal.
Send us the product, the fill weight and the target market, and we will suggest a laminate free of charge. If two structures both work, we recommend one in writing and price each separately so you can compare them.

Every fitting is listed as its own line on the quote.
A press-to-close track is sealed under the tear line. It suits snacks, tea, pet treats and other products that are opened many times.
A small cut in the side seal starts a straight tear. It costs little and is usually paired with a zipper.
A one-way valve releases CO₂ without letting air in. It is needed for whole-bean or ground coffee packed soon after roasting.
A round or euro-slot hole punched in the top seal. It suits retailers who display on pegs as well as on shelves.
A clear panel shows the product inside. Any window area has no foil, so light and oxygen protection drop there. Keep windows small for light-sensitive products.
The right method depends on the quantity per design and how often you reorder.
Both methods run in-house with up to 9-color printing. The number of colors affects the price, and each color is listed on the quote.
| Item | Digital printing | Gravure printing |
|---|---|---|
| MOQ per design | 1,000 pcs | 10,000 pcs |
| Plates or cylinders | None required | Engraved cylinder per color |
| Best fit | Launches, test runs, many SKUs | Repeat orders, stable artwork |
| Unit price | Higher at volume | Lowest of the two |
| Typical buyer | Start-ups, private label trials | Wholesalers, established brands |
The same team handles OEM/ODM orders and private label orders, in four steps.
Tell us the product, the quantity per design and a photo or link of a reference bag. Artwork is optional. Your logo, barcode and label text go straight into the layout.
You get a recommended structure, an itemized price and free design support. If you have no finished files, our designers build the layout from your idea or a reference photo.
We send similar bags so you can check the size, feel and fit with your real fill. The sample is free and the buyer pays the courier.
Production takes 7–15 days after you approve the artwork proof. Air, sea or express shipping is quoted with the order, and transit time depends on the carrier.
These checks are built into the production line. They are not run afterwards on a sample of the batch.
Pouches are leak-tested before shipment. This finds seal failures before they reach your filling line.
Each batch passes 11 checks before packing. Print, lamination and seal problems are caught at the stage where they happen.
YLTPACK has made flexible packaging since 2005. Printing, lamination and bag making all run in its own 6,520 m² cleanroom plant in Shenzhen, so no work is passed to subcontractors between stages.
Production runs under ISO 22000 and ISO 9001. The PE film is tested to FDA 21 CFR food-contact requirements, and copies of the certificates come with the quote.
Send us the product and fill per bag, the bag type or a photo, the size if known, the quantity per design, the number of designs, your artwork or idea, the fittings you want and the target market. You get an itemized quote within one business day. Email [email protected] or WhatsApp +86 182 1944 5665.

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