Inputs
Paper grammage, sizing and absorption, surface energy, contents, contact temperature and duration.
BIOTEN PLUS / ROUTE 01
Candidate route for general fiber-based food packaging
Plus is the balanced engineering starting point for common food-packaging objects such as cups, bowls, cartons and bags, bringing liquid and grease resistance, coating and film formation, heat-seal forming, finished-pack performance and repulping direction into one project validation.
Position: general candidatePrimary field: food & beverageStatus: project-level validation
02 / PROCESS WINDOW
The process window is co-defined by paper, coating, drying and forming.
The process window starts from the customer's paper, equipment, coating method and target pack, then converges through sample and representative-line trials.
Coating window
Solids, viscosity, wetting and leveling, target dry coat weight, single or multiple passes and drying capacity.
Converting window
Print fit, rewinding, die cutting, creasing, forming and the heat-seal temperature–time–pressure combination.
Pack window
Filling, leakage, stacking, transport, exposed edges and consumer use.
03 / VALIDATION GATES
From material screening to finished pack, every step has a release condition.
Cobb defines surface water absorptiveness over a specified time, while WVTR defines water-vapor transmission under stated temperature and humidity. KIT screens grease resistance; contents, time, creases and finished-pack validation close the complete packaging performance.
| Gate | Planned fields | Release logic |
|---|---|---|
| Paper & coating | Paper state, dry coat weight, uniformity, adhesion and surface defects | A repeatable sample structure with batch records |
| Functional screening | Cobb condition, KIT rating, target-medium contact and heat-seal curve | Method, conditions, controls and failures recorded together |
| Representative line | Speed, drying, rewinding, die cutting, folding and seal stability | Continuous-production window and batch variation are explainable |
| Finished pack | Leakage, filling, stacking, transport simulation, edges and creases | Pass/fail judgment under target use conditions |
| Compliance & end of life | Target-market food contact, fluorine-free formulation boundary, repulping or a separate composting route | Complete structure, target market and claim scope align |
Industrial-composting suitability is evaluated on the finished pack under EN 13432, ASTM D6868 or another applicable specification. Home composting builds evidence around the complete article, corresponding conditions and an independent certification route.
04 / DOCUMENT STATUS
Validation status drives document and evidence versions.
The public page presents route definition and planned fields. Data and documents are delivered by version as the project advances through sample, pilot and finished-pack validation.
Research question
Records object, failure, target and constraints; the route may enter feasibility discussion.
Validation record
After sample or pilot work, versioned records capture conditions, results, failures and scope.
Engineering release package
Stage-appropriate specifications, batches, processes, finished-pack evidence and claim-scope documents form a versioned delivery list in the project agreement.
Turn a general paper pack into a verifiable Plus project.
Start with real paper, equipment and finished pack. The system retains field, topic, route and source to connect later research, validation and release.