Flat bags are the simplest bag form: two film layers lying on top of one another, welded on three sides, with one open side for filling. No special closures, no stand-up function – but very economical per unit and versatile in use.
The material is usually LDPE or HDPE, depending on the desired look and tear resistance. For direct food contact, additionally certified to EU 10/2011.
Flat bags are the simplest and best-selling packaging form, made of polyethylene or polypropylene. The material thickness and film type determine tear resistance, transparency and printability.
Low-density polyethylene, flexible, clear transparent, cost-effective. The standard solution for light contents: textiles, small parts, shipping fill. Tear resistance for contents up to approx. 1 kg.
Double material thickness for sharp-edged or heavy contents: tools, metal parts, industrial goods. Higher puncture resistance, suitable for shipping with higher stress requirements.
High-density polyethylene film with a crackling look and high tear resistance at a low material thickness. The classic fruit-and-vegetable bag in food retail.
Oriented polypropylene with crystal-clear brilliance and high stiffness. For presentation packaging, gift items, printed matter. Printable in flexo or gravure print.
LDPE and OPP films are certified to EU Regulation 10/2011 for direct food contact. Declaration of conformity on request. Suitable for dry and unpackaged foods: baked goods, confectionery, fruit, vegetables.
Standard delivery form: block-glued in 100 or 1,000 units, alternatively loose in a carton. Printed variants on a roll or die-cut.
| Variant | Material | Thickness / property | Typical application |
|---|---|---|---|
| Standard | LDPE | 50 microns, clear, up to approx. 1 kg | Textiles, small parts, shipping fill |
| Extra strong | LDPE | 100 microns, puncture-resistant | Tools, metal parts, industrial goods |
| Vest-bag look | HDPE | 25 microns, tear-resistant, crackling | Fruit & vegetables in food retail |
| Premium transparent | OPP | 30 microns, crystal-clear, stiff | Presentation, printed matter, gift |
Flat bags are the most versatile packaging type and can be freely converted.
Printing in the flexo print process with up to 8 colours, including Pantone special colours and a white underprint for text on transparent film. Full-surface printing across the entire outer face is possible.
Freely selectable formats in width (50–700 mm) and height (60–900 mm). Material thickness optionally 50, 60, 80, 100 or 150 microns. On request with Euro hole punching, side gussets, bottom gusset or tear notch.
Delivery form optionally block-glued, loose in a carton or wound on a roll — depending on your packaging line. For automated filling we supply roll stock with defined perforation.
We clarify this individually following your enquiry. Submit an enquiry.
Flat bags made of pure LDPE, HDPE or OPP are mono-material and therefore PPWR-compliant from 2030.
Pure PE bags are classified as polyethylene in German sorting plants via near-infrared detection (NIR) and fed into the PE recycling stream. OPP bags are assigned analogously to the PP stream. Both materials are established in the German sorting system.
For commercial applications without food contact, on request we process post-consumer recyclate (PCR) with contents of 30–80%. PCR/recyclate variants are currently still in the testing phase for food safety and are not yet approved for direct food contact.
On request we use printing inks compliant with the RecyClass design guideline, which do not impair the recycling process. Standard inks are nitrocellulose-based.
Where technically possible, we advise on material savings through thinner films: 50 microns instead of 60 microns saves approx. 17% material at comparable functionality.
We ship promptly and reliably from our German warehouse. For large orders, direct delivery by forwarder. For special sizes, the delivery time is arranged individually. Free shipping from €200 net within Germany.
An economical pack made of two film layers lying on top of one another, welded on three sides, with one open side for filling. Synonyms: polybag, flat PE bag, plastic bag.
Flat bags have no integrated closure; they are welded or clipped shut. Ziplock bags have a zip profile. For reclosable, see ziplock bags.
Only the explicitly certified ones → food-grade flat bags to EU 10/2011 with a declaration of conformity.
Heat sealing with a film welder (impulse or bar sealer), bag clip, adhesive tape or cable tie. For reclosable, choose ziplock bags instead.
40–60 microns for light contents, 60–80 microns standard, 100+ microns for heavy or sharp-edged contents (→ extra strong).
Yes → flat bags for textiles in suitable sizes for T-shirts, jumpers, fashion shipping.
Yes → flat bags for shipping as an economical polybag solution. For mailing bags with an adhesive closure, see the shipping & bags range.
Yes – small flat bags from 50×80 mm and large flat bags up to 500×700 mm and more.
Yes – LDPE stays flexible down to approx. −50 °C and is freezer-suitable. For frequent freeze-thaw cycles, a heavier wall thickness (80–120 microns) is recommended.
Yes – on request we supply HDPE flat bags (cracklier, higher tear resistance per wall thickness).
Yes – flexo print (low-cost, from a larger run), gravure print (premium), digital print (small quantities). → custom-made.
Yes – in almost any size you wish. For individual requirements → request a custom-made product.
Yes – from recycled LDPE with a GRS certificate → sustainable variant or with recycled content.
Flat bags are the most economical bag design – the lowest material use, simple converting. For an upright display, stand-up pouches; for a premium box form, block bottom bags.
