Two layers · Surface / sealant
PET / PE
A simple laminate to consider when a dedicated barrier layer is not required.
Review: Product sensitivity, film thickness, sealing and the intended shelf life.
CUSTOM PRINTED FLEXIBLE PACKAGING
Stick Pack
Rollstock.
Your product. Your artwork.
Film selected with production in mind.
For supplement powders, drink mixes and food applications. We help review the material structure, print layout and roll specifications for your product and packaging equipment.
100 kgMinimum per specification & design
30 daysTypical production after artwork approval*
Third-party test report with every batch
*Transit time is additional. Project timing is confirmed with your order.
THE FILM, EXPLAINEDLayers, sealing & registration.
UNDERSTAND YOUR MATERIAL OPTIONS
What each layer adds.
A laminate combines materials with different jobs. Choose the functions your product needs, then build the structure around them.
Outside of the pack
Surface & printPET
ReinforcementPA
Product contact & sealingPE
Product inside the pack
Build the functions
your product needs.
The basic arrangement is an outer surface, any functional layers needed, and a product-facing inner layer. A barrier or reinforcement layer is added when the application calls for it.
Four functions do not mean every pack needs four layers. A material can perform more than one job, and a film can contain several coextruded layers. More layers alone do not make a better pack.
The same principles apply to rollstock and premade pouches. Pack shape, sealing and filling requirements still need their own review.
Explore structure examples01Surface layerPrint, appearance, feel and handling
- PET Polyester
- A common printable outer film with stiffness and heat stability. Gloss, matte and tactile finishes depend on the selected film and surface treatment.
- BOPP Oriented polypropylene
- Gloss and matte film options with moisture resistance. Review heat response and machine settings, particularly when combining BOPP with foil.
- Paper
- For a paper look and texture. Natural shade and texture can vary between batches; coatings and other layers change the final feel.
PA nylon can also serve as an outer film in some vacuum-packaging structures. The layer’s role depends on the complete design.
02Barrier layerProtection from oxygen, moisture or light
- AL Aluminum foil
- A foil barrier for products needing strong protection from oxygen, moisture and light. It creates an opaque structure.
- VMPET Metallized PET
- PET with a thin deposited aluminum coating. A different barrier and cost option from foil; compare the actual film grades and complete laminates.
- EVOH Ethylene vinyl alcohol
- A transparent oxygen-barrier option, commonly built into a multilayer film. It needs moisture protection; humidity affects its oxygen-barrier performance.
Transparent barrier-coated PET, such as AlOx-coated PET, is another option to discuss. An aluminum-oxide coating differs from the metallic coating on VMPET.
03Reinforcement layerToughness for filling, handling and transport
- PA / NY Polyamide, or nylon
- Adds toughness and puncture resistance. It can be useful where liquid or oil packs, vacuum packs or handling loads call for additional strength.
Reinforcement addresses the body of the pack. Leakage also depends on seals, product compatibility and the filling process, so adding PA does not by itself make a pack leakproof.
04Contact & sealant layerThe surface facing your product
- PE Polyethylene
- A common inner sealant film with moisture resistance. Clear, white and easy-tear options are reviewed against the product and complete structure.
- CPP Cast polypropylene
- An inner-film option offering clarity and stiffness. Select the grade for the required sealing window, pack design and filling conditions.
- RCPP Retort-grade CPP
- A specialized sealant option for heat processing. Hot fill and retort require a laminate, adhesive system and seals designed for the full process.
Specialty PLA- or PBAT-based films need a separate review of barrier, sealing and heat limits. Food-contact suitability is confirmed for the selected material grade and intended use.
Appearance can change the structure too. For example, a paper / AL / PE laminate may gain an extra outer film to give a smoother surface. Matte, gloss, tactile and easy-tear choices should be considered alongside protection and line performance.
UNDERSTAND THE SEAL
How the inner layers
form a seal.
In a PE-to-PE seal, heat and pressure fuse the two inner layers. Cooling sets the bond.
Match the film to the seal format. A fin seal joins inner face to inner face. A lap seal joins an inner face to an outer face, so those surfaces must be compatible for sealing. Other films may use CPP or a different sealant.
Confirm the sealing window on your line. Temperature, contact time and pressure work together. The jaw setting is not the temperature at the PE interface; film construction and line speed affect heat transfer.
Further reading on heat sealing
Research on LDPE and LLDPE sealant films, polymer-chain diffusion in heat seals, and technical background on stick-pack fin and lap seals. These explain the principles; they do not specify settings or validate a particular supplied film.
KEEP PRINT AND CUT IN STEP
How the eye mark
guides registration.
A printed eye mark gives the packaging machine a position reference. The sensor reads it; machine control aligns the film with sealing and cutting.
Give the sensor a clear reading track. The mark must be distinguishable from its background and any graphics along the sensor’s path. Black on light film is one example; the right color, size and sensor setup depend on the material and equipment.
Keep the print repeat consistent. Confirm mark spacing, mark-to-artwork position and the intended seal and cut locations. Film flutter, glare, weak contrast or competing graphics can interfere with detection. Evaluate the printed film on the intended line.
Further reading on eye-mark detection
SICK on registration-mark design and contrast sensing, SICK on print-mark registration and web-motion control, and Banner’s registration-mark sensor guide. Setup, signal behavior and correction methods vary by sensor and packaging machine.
START WITH YOUR PRODUCT
Choose around your needs.
Share the product and process first. We can then compare structures, confirm specifications and plan sample evaluation.
What goes inside?
Powder, liquid or oil; ingredients, alcohol content or acidity where relevant; and the amount in each pack.
What needs protection?
Moisture, oxygen, light or aroma. Include target shelf life, storage conditions and distribution requirements.
How is it processed?
Ambient filling, hot fill, retort or frozen storage. Share temperatures, times and equipment details if known.
How should it look?
Clear or opaque, paper texture, matte or gloss. Include opening preferences, brand goals and budget.
“Liquid” is a starting point, not a specification. Water, an alcohol-containing liquid and an acidic formulation can have different compatibility and processing needs. We review the contact layer, laminate bonds and seals together.
Common structures to discuss
9 examples to explore
Compare what each combination adds. These are starting points for a discussion about your product, shelf life and filling process.
Two layers · Surface / sealant
BOPP / CPP
An option for gloss or matte presentation, with a CPP inner sealant.
Review: Barrier needs and how the complete film responds to your machine’s heat and speed.
Three layers · Surface / barrier / sealant
PET / VMPET / PE
Adds a metallized barrier layer to a PET surface and PE sealant.
Review: Finished-laminate barrier data, shelf-life needs and cost against a foil option.
Three layers · Surface / barrier / sealant
PET / AL / PE
A foil-based option for products needing strong oxygen, moisture and light protection.
Review: Foil gauge, handling, seal performance and an opaque appearance.
Four layers · Includes reinforcement & foil
PET / AL / PA / PE
Combines a PET surface, nylon reinforcement, foil barrier and PE sealant.
Review: Liquid or oil compatibility, pack size, handling loads and seal integrity.
Four layers · Includes reinforcement & metallized film
PET / PA / VMPET / PE
Adds nylon reinforcement while using metallized PET as the barrier option.
Review: Required barrier performance, mechanical strength and seals for your formulation.
Transparent barrier · Layer count varies
EVOH-containing clear film
For discussing oxygen protection while keeping the product visible.
Review: The complete film design, moisture protection and barrier performance at the expected humidity.
Heat processing · Structure specified by process
PET / AL / RCPP
A foil-based candidate with a retort-grade CPP sealant, specified for the required heat process.
Review: Filling and sterilization temperature, time and pressure, adhesives and seals. Standard PE or CPP grades are not automatically interchangeable here.
Three layers · Paper surface / foil / sealant
Paper / AL / PE
Combines a paper outer appearance with a foil barrier and PE inner layer.
Review: Surface feel, print, natural batch variation and whether an extra outer film is needed.
Read structures from the outside to the product side. The examples identify material families, not finished specifications. Layer order can vary. Grades, thicknesses, adhesives, processing and seals determine the final performance. Compare oxygen and moisture transmission on the complete structure under the same test conditions, and evaluate samples on the intended line.
You do not need to arrive with a finished laminate specification. Tell us about your product, preferred pack and production plan, and we’ll help review the options.
Further reading on material functions
For general background: Kuraray on EVOH and moisture protection, Toray on transparent barrier-coated films, and Profol on retort sealant films. These references describe material functions; they are not test reports or specifications for Encap-supplied film.
Discuss recycling or composting goals when selecting a structure. A paper layer, EVOH or PLA by itself does not establish recyclability or compostability of the whole pack.
BUILT AROUND YOUR APPLICATION
Match the film to your production line.
Once the material is selected, confirm dimensions, roll configuration and sealing requirements with your equipment team.
Protection, appearance
and performance.
We review film dimensions, sealing and handling requirements against your equipment and production plan.
Available options include foil and metallized laminates, clear structures, matte and gloss finishes, soft-touch effects and easy-tear options. Availability and the final structure are confirmed for your application.
- Material structure
- Record the agreed laminate, material grades and thickness
- Thickness & dimensions
- Film gauge, web width and print repeat matched to your specification
- Roll configuration
- Core size, maximum roll diameter and unwind direction
- Sealing & registration
- Seal format, eye-mark location and equipment requirements
- Print & finish
- Custom artwork, color and surface finish options
- Barrier requirements
- Discuss the product, storage conditions and target shelf life
01
Matte & Gloss
Choose the surface appearance that fits your brand.
02
Soft Touch
Review film and coating options using physical samples.
03
Easy Opening
Discuss tear performance alongside the selected structure.
REVIEW BEFORE YOU COMMIT
Start with a sample.
Learn from the line.
Free unprinted blank film is available for evaluation.
Our team can coordinate trial runs alongside Pure NSM to assess film handling and sealing. Or discuss sample requirements for your own production line or chosen co-packer.
Blank-film trials assess material behavior. Custom print registration requires separate evaluation. Sample quantities, shipping and any trial charges are confirmed by project. Free blank film does not mean free shipping or free trial services.
FOOD-CONTACT SAFETY & QUALITY
Documentation
you can review.
Every batch of rollstock comes with a third-party test report. Documentation is tied to the relevant material and testing scope.
Third-Party Test Reports
Review the tests performed and the reported results for the supplied batch.
Supporting Material Records
Relevant supplier statements and selected sample tests support application-specific material review.
Manufacturing Quality Systems
Certification coverage is confirmed for the manufacturing facility selected for your project.
Explore testing & material records
Clear scope matters. A test report applies to its stated sample, tested portion and conditions. Selected food-contact tests are not a blanket approval of every product or application.
ORDER PLANNING
Plan the run.
Then plan the arrival.
One specification. One design.
100 kg minimum. More competitive pricing above 500 kg for a single batch with the same specification and artwork. Different designs or batches cannot be combined.
Production and transit are separate.
Typical production is 30 days after artwork approval. Courier, air and sea freight options are discussed against your target production date.
A quote specific to your project.
Material, quantity, print tooling, finish and delivery requirements are reviewed in your quotation.
BEFORE YOU ORDER
A few useful
answers.
How do we choose a material structure?
Start with your product, protection needs, filling process and preferred appearance. Review the layer functions and structure examples, then share your requirements with us. The same material names can describe films with different grades, thicknesses and performance, so we confirm the complete specification and evaluate samples.
Do we have to use Pure NSM for filling?
No. You can purchase film for your own equipment or your chosen co-packer. If you choose production support, our team works on site alongside Pure NSM, collaborating from planning and setup through production.
Can you help if we don’t know our film specifications?
Yes. Share your product, packaging format, quantity and target date. Any equipment specifications or an existing film sample will help us review suitable options.
Is every finish available at the same minimum?
Our standard rollstock minimum is 100 kg per specification and artwork design. Special structures, finishes and tooling are confirmed in your project quotation.
Does the 30-day lead time include shipping?
No. This is the typical production time after artwork approval. Transit is additional and depends on the agreed delivery arrangements.
What does a blank-film trial tell us?
It helps evaluate film handling and sealing on the selected equipment. It does not validate custom print registration, which needs separate evaluation.
What should we include in a quote request?
Your product, estimated quantity, dimensions if known, artwork details and target production date. If you are unsure about a specification, tell us and we can help.
YOUR NEXT PRODUCTION RUN
Let’s start with your product.
Share what you know. We’ll help with the details.