FAQ

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Product

What types of films does Kablonex produce?

We offer six product families with consistent NEX nomenclature: NEX-LAM (lamination films), NEX-HOOD (stretch-hood for pallets), NEX-PACK (packaging films), NEX-SHRINK (shrink films), NEX-BAG (FFS films and industrial bags up to 50 kg), and NEX-PAPER (paper solutions). We produce mono-, 3-, and 5-layer variants, based on PE and PP.

What do the designations in the NEX-LAM film name mean?

Each letter represents a specific technological decision: LM/HM = metallocene content (packaging efficiency up to 40 / up to 80 pcs/min), LS/ULS = reduced seal initiation (from 90°C / from 80°C), B AS = moisture barrier + antistatic, HPR = increased stiffness (e.g., Doy-Pack with cap), EP U = easy peel on universal substrate (PET/PP/PVC/PS), PP = polypropylene base for sterilization. Example: NEX-LAM LS B AS = PE film with 95°C initiation, barrier, and antistatic – for coffee, cosmetics, chemicals.

Are the films approved for food contact?

Yes. We are a certified manufacturer under the BRC standard with extensive experience in food-contact applications. Our films are PFAS-free (fluorine-free), and upon request, we provide declarations of conformity and migration test results.

Do you offer mono-material films compliant with PPWR?

Yes. We produce mono-PE and mono-PP structures designed for recycling, as well as films with approximately 50% reduced thickness while maintaining the same or higher water vapor barrier properties. We incorporate PCR/PIR content, which directly supports the adaptation of packaging to the PPWR regulation.

What are the technical capabilities of the films (width, thickness, print)?

Extrusion: thickness 16–250 µm, width up to 3000 mm, up to 5 layers. Flexo printing up to 10 colors, cores fi 76 / fi 152 mm, perforation. Available additives: antistatic, colorant, antifog. Before implementation, we provide samples and production tests tailored to your line’s parameters.

Production Processes

Extrusion — what is it and what are the benefits of multi-layering?

We produce film using the blown film extrusion method on 18 lines (mono-, 3-, and 5-layer), with a capacity of up to 1000 kg/h. The multi-layer structure allows each layer to be designed separately for its function – sealing, support, and functional (barrier, optics, resistance) – without material compromises. This is where parameters such as low seal initiation and a wide hot-tack window come from.

Printing House (flexo printing / NEX PRINT) — what are your capabilities?

We use CI flexographic printing technology on premium machines (including W&H Miraflex, Novoflex, Bonardi). Capabilities: up to 10 colors, web width 300–1800 mm, speed up to 400 m/min, double-sided printing (face/back), and sleeve printing. Color repeatability is controlled by the Delta E parameter.

Conversion / Finishing — what does it include?

On 7 sealing machines, we produce bags, hoods, and sheets (rolled or cut) in widths of 20–2000 mm, including FFS applications and stretch-hood sleeves. Rewinding and cutting are performed on 3 slitters (width 10–1650 mm, up to 600 m/min). The entire chain – extrusion → printing → finishing – takes place in one location, ensuring full quality control.

POLYTEX — what is this technology and what are its benefits?

POLYTEX is an industrial, modular Tube Former line from Windmöller & Hölscher for forming sleeves (tubes) from a flat web – film (LDPE, LLDPE, MDPE, HDPE, PP, and blends), kraft paper (60–100 g/m²), coated PP fabrics, and laminates (thickness 80–200 µm, web width up to 1430 mm, speed up to 150 m/min). The “flat web first” approach provides full control over the material and high-quality flexo printing (Nex Print) even before tube formation, and only at the end closes the material into a perfect sleeve geometry – flat or with a side gusset, in 1-ply or 2-ply variants (e.g., paper + film).

Customer benefits: up to 20% reduction in material costs (downgauging from flat web without loss of parameters), precise tube geometry without trapped air = more stable operation on bagging and packaging lines (higher OEE), process printing without ink bleed-through and blocking, as well as advanced de-aeration through longitudinal sealing – ideal for dusty products (cement, chemicals, bulk materials). The combination of POLYTEX + Nex Print means packaging design from input to finished sleeve under one responsibility.

How do you ensure production repeatability and quality?

We conduct real-time quality control on the line, operate under the BRC regime, and monitor critical parameters, including the coefficient of friction (COF), which changes over time. Full integration of processes in one facility eliminates discrepancies between suppliers and translates into stable, repeatable sealing regardless of raw material fluctuations or machine speed.

Customer Service

How to start cooperation or submit an inquiry?

The fastest way is an email inquiry to ask@kablonex.com.pl or the contact form on the website. We start with a technical discussion, not a commercial offer – we want to understand your process, machine parameters, and end-product requirements before selecting a film.

Do you provide samples and production tests?

Yes. The standard procedure involves selecting film based on actual production conditions (speed, temperature, substrate, application), followed by samples, tests on the client’s line, and optimization of sealing parameters. This reduces the number of test iterations and the risk of complaints after implementation.

What are the lead times and how does logistics work?

We have our own transport, which allows us to fulfill orders on time and flexibly handle pilot deliveries. The specific deadline depends on the specification, volume, and line occupancy – we confirm it at the order stage.

Do you carry out individual structures and projects?

Yes – this is our working model. We conduct research and development and select the layer structure for specific applications. We do not sell “off-the-shelf films” but build long-term technological partnerships, in which we support clients with structural changes and process optimization.

Do you handle large contracts and tender inquiries?

Yes. For larger projects, we provide a dedicated tender inquiry form (with the option to attach PDF/DOC specifications) and support from regional representatives and the technical department.

Recycling (POD ECO)

What is POD ECO?

POD ECO is a Kablonex subsidiary established in 2022, focused exclusively on film recycling technology. Its result is POD ECO X – a patented, 5-layer film with recycled content, designed from the outset for a circular economy. This allows us to know exactly what material returns for processing and what the effect of each cycle will be.

How does the Closed Loop program work?

The program has 5 steps:
(1) familiarization with the rules,
(2) signing the
Closed Loop declaration,
(3) purchasing Kablonex film (which triggers collection),
(4) ordering collection of post-production waste,
(5)
recycling loop closure certificate.

This is a process integrated with the purchase, not a one-time action – material goes in and material comes back.

What are the business benefits of joining the program?

You receive a Closed Loop certificate confirming the quantity of recovered material – a solid document for ESG reports, audits, and marketing communication. Additionally: lower raw material costs thanks to recycled content, a lower carbon footprint, no transport organization costs (collection on our part), and strengthened CSR profile. This is proof of responsibility, not greenwashing.

What waste does the program cover and how does recycling work?

The program covers post-production film of a specific type, purity, and fraction, prepared according to guidelines. We use mechanical recycling: sorting, washing, shredding, and regranulation – obtaining granules with properties similar to virgin raw material, ready for re-extrusion.

Do you offer films with PCR/PIR content?

Yes. We incorporate PCR (post-consumer) and PIR (post-industrial) into film structures, including FFS and stretch-hood lines (PCR variant), with the possibility of dosing recycled content. This directly supports compliance with PPWR and carbon footprint reduction goals for packaging.

Complaints

How to file a complaint?

File a complaint via:

  • channel – email
  • form
  • sales representative,

attaching basic batch identification data. We treat each submission as a process – the goal is to determine the root cause, not just close the case.

What data is needed for a submission?

Prepare: order/batch number, roll label, problem description, photos, and your process parameters (speed, sealing temperature, machine type). If possible, keep a sample of the defective material – this speeds up technical analysis.

What is the complaint resolution time?

Upon receipt of the complaint, we initiate a technical analysis involving the quality department and technologists.

What are the most common causes of line problems and how to avoid them?

Some complaints result not from film defects, but from packaging process parameters – including changes in the coefficient of friction (COF) over time, sealing settings, or storage conditions. Films with reduced initiation (LS/ULS) and a wide hot-tack window decrease sensitivity to seal contaminants (dust, oil, plasma) and reduce waste. We recommend a joint analysis of parameters before implementation.

How do you prevent complaints?

We operate under the BRC standard with real-time quality control, ensure sealing repeatability regardless of raw material fluctuations, conduct production tests before implementation, and perform migration studies and HACCP regime for food applications. Fewer test iterations = less “firefighting” after production launch.

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