| HS Code | 631980 |
| Product Name | INZEA F08 Flexible High Tear Film Polylactic Acid |
| Chemical Base | Polylactic acid (PLA) based compound |
| Product Form | Pellets |
| Color | Natural |
| Density | 1.24-1.26 g/cm³ |
| Melt Flow Rate | 6-8 g/10 min at 190°C/2.16 kg |
| Melting Temperature | 150-160°C |
| Glass Transition Temperature | 55-60°C |
| Tensile Strength | 25-35 MPa |
| Elongation At Break | 200-400% |
| Tensile Modulus | 800-1200 MPa |
| Tear Resistance | High |
| Bio Based Content | >80% |
| Compostability | Compostable according to EN 13432 |
| Food Contact | Suitable for food contact |
| Processing Method | Blown film extrusion |
As an accredited INZEA F08 Flexible High Tear Film Polylactic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied in 25 kg moisture-barrier bags, palletized, protecting INZEA F08 Flexible High Tear Film Polylactic Acid from moisture and contamination. |
| Container Loading (20′ FCL) | 20′ FCL: INZEA F08 Flexible High Tear Film Polylactic Acid loaded palletized, shrink-wrapped, secured, and moisture-protected for safe ocean transport. |
| Shipping | INZEA F08 is shipped as non-hazardous solid polymer pellets in moisture-barrier foil-lined bags, fiber drums, or octabins, palletized and stretch-wrapped. Store in a cool, dry area away from direct sunlight, heat, and moisture. No special dangerous goods classification; standard freight, air, or sea transport applies. |
| Storage | Store INZEA F08 in a cool, dry, well-ventilated area away from direct sunlight, heat, and moisture. Keep sealed in original packaging until use to prevent hydrolysis. Recommended conditions: below 30°C and low humidity. Isolate from strong oxidizers, acids, bases, and odorous materials. Avoid prolonged storage in humid environments. Use first-in, first-out. Maintain clean, dust-free handling. |
| Shelf Life | Shelf life is typically 12 months when stored unopened in a cool, dry place, away from moisture, heat, and sunlight. |
Certified compostable organic waste collection bags represent the primary high-volume downstream application for INZEA F08, where the resin is processed as a neat or near-neat film layer and the critical failure mode is not puncture initiation but tear propagation from the gusset fold and heat-seal corner after loading with wet kitchen waste. On production-scale blown film lines equipped with 30:1 L/D barrier screws and 1.4–2.0 mm die gaps, the film is extruded at melt temperatures of 180–195°C with a blow-up ratio of 2.5:1 to 3.5:1 and a frost line height of 4–8 times the die diameter. The frost line is held low to suppress excessive crystallinity development, which otherwise reduces machine-direction Elmendorf tear strength. Formulation addition ratios for this sector are typically 92–100 wt% INZEA F08, with 0–8 wt% PBAT flexibiliser when a softer hand is specified for 30–120 L municipal bin liners, and 1–2 wt% of a silica-based antiblocking masterbatch. Melt flow rate is monitored per ISO 1133-1:2022 at 210°C/2.16 kg; batch-to-batch variation outside ±0.5 g/10 min from the qualified reference lot can shift bubble stability because the PLA viscosity curve steepens above 195°C. Pre-drying at 80°C for 4–6 h is required when resin has been exposed to ambient relative humidity above 60%, and amine-based slip concentrates are not recommended because they accelerate PLA hydrolysis and cause die-lip deposit. Bag conversion is performed on high-speed bottom-seal lines with heated anvils at 135–160°C and seal bar pressure of 0.4–0.6 MPa; the sealing window is narrow because seal initiation is insufficient below 130°C while delamination at the star seal appears above 165°C. Corona treatment to 38–42 mN/m precedes flexographic printing with water-based inks using repeat lengths of 300–350 mm. Terminal product types include 8–12 L household kitchen caddy liners, 30–120 L municipal organic waste bags, and compostable bin liners for food-service wet waste.
| Standard/Regulation | Relevant clause or test method | Requirement |
|---|---|---|
| EN 13432:2000 | Clause 4.2.2; ISO 20200 | Disintegration after 12 weeks in industrial composting; no more than 10% residue above 2 mm |
| EN 13432:2000 | Clause 4.2.3; ISO 14855-1:2012 | Biodegradation ≥90% absolute or relative to reference within 6 months |
| ISO 17088:2021 | Compostable plastic specifications | Conformity to EN 13432, ASTM D6400, or equivalent national standards |
| ASTM D6400-21 | ASTM D5338-15 | Aerobic biodegradation in municipal or industrial composting |
| OECD 208 | Terrestrial plant seedling test | No adverse ecotoxicity after compost application |
| EU 94/62/EC | Annex II | Heavy metal concentration limits for packaging and packaging components |
When PBAT is reduced in biodegradable agricultural mulch films and the formulation shifts toward INZEA F08 as the majority phase, the initial tear resistance of the installed film remains acceptable, but field performance after 4–6 weeks of soil contact is governed by a different mechanism: abiotic hydrolysis at the soil-facing surface combined with microbial colonization at stress-concentrated perforation points. Longitudinal splitting in 15–25 μm film is observed on sandy-loam soils when the PBAT fraction falls below 15 wt%; above 20 wt% PBAT, puncture and perforation toughness remain higher, but the film becomes more difficult to perforate cleanly at transplant holes. The formulation addition ratio must therefore be tuned to crop duration: INZEA F08 at 80–100 wt%, PBAT at 0–20 wt%, carbon black or titanium dioxide masterbatch at 1–2 wt%, and processing aid at 0.2–0.5 wt%. Carbon black protects against UV embrittlement but raises soil-facing temperature, accelerating hydrolysis; in hot-climate tomato systems, a white masterbatch is preferred to moderate the soil-film interface temperature below 35°C. Blown film extrusion uses 1.6–2.0 mm die gaps, blow-up ratios of 2.8:1 to 3.2, and melt temperatures of 175–190°C. Post-extrusion microperforation at 0.5–1.0 mm hole diameter and 20–30 cm spacing is performed in-line before winding, and field laying requires soil temperature above 12°C to avoid cold fold cracking. Industry compliance is anchored to EN 17033:2018 for biodegradable mulch films used in agriculture and horticulture, with soil biodegradation tested according to ISO 17556:2019 and ecotoxicity assessed by OECD 208. Published data for the specific INZEA F08 soil degradation rate is limited, so converters should verify crop-cycle disintegration in the intended regional soil type before commercial supply. Terminal product types include biodegradable mulch films for processing tomato, pepper, cucurbit, and vineyard row crops at film widths of 1.2–1.8 m.
Retail carrier bag conversion of INZEA F08 differs from PBAT-dominated film in that the high tear strength permits die-cut punch handles to be placed at a closer distance to the top edge without requiring reinforcement patches. The formulation addition ratio is defined by the required handle tear resistance and surface slip: 85–100 wt% INZEA F08, 0–15 wt% PBAT, and 1–2 wt% antiblock/slip masterbatch. Film is run as blown film at 22–35 μm thickness, corona treated to 38–42 mN/m, printed by flexographic water-based inks, and sealed at 135–160°C on bottom-gusset or side-seal bag lines. Compliance for retail carrier bags is verified under EN 13432:2000, ASTM D6400-21, and ISO 17088:2021, with packaging heavy-metal limits under EU 94/62/EC Annex II. Terminal product types include checkout bags, boutique carrier bags, and lightweight promotional bags.
In dry food pouch lamination, INZEA F08 is positioned as the inner sealant web rather than as the primary barrier layer, and its contribution to the structure is controlled by seal initiation temperature, tear resistance at the filler port, and migration compliance. The sealant web is prepared from 95–100 wt% INZEA F08 with 0–5 wt% PBAT and is gauged at 20–30 μm; the outer paper or cellulose-based film provides mechanical stiffness and printability. Solvent-free polyurethane adhesive is applied at 2.5–4.0 g/m², with lamination at 40–60 m/min and nip temperature 40–50°C, followed by curing at 25–35°C for 48–72 h. If adhesive curing is incomplete, residual isocyanate can migrate into the PLA sealant layer and produce brittle seal edges; converters therefore verify seal strength after 72 h using ASTM F88/F88M-23. Food contact compliance for the European market requires conformity to EC 1935/2004 and EU 10/2011 with overall migration below 10 mg/dm²; U.S. applications require confirmation of an effective Food Contact Notification for the specific INZEA F08 grade, because published FDA FCN coverage for this exact resin grade is limited. The pouchmaking process uses heat seal temperatures of 130–155°C and seal bar dwell times of 0.4–0.8 s. Terminal product types include side-gusset dry food pouches, powder beverage sachets, and low-moisture snack pouches where water activity is kept below 0.65.
Bakery bag applications use INZEA F08 at 18–30 μm thickness where the film is subjected to repeated crimping at clip closures and rapid open/close cycles without fracture at the fold line. The formulation addition ratio is typically 95–100 wt% INZEA F08, 0–5 wt% PBAT, and 0.5–1.5 wt% silica antiblock masterbatch; slip masterbatch is limited to 0.5 wt% to avoid heat seal strength reduction below 8 N/15 mm. Cast film or blown film extrusion is acceptable, with cast film preferred when optical clarity is the primary specification. Corona treatment to 38–42 mN/m is required before flexographic or rotogravure printing. Food contact compliance is based on EC 1935/2004, EU 10/2011, and EC 2023/2006 for good manufacturing practice in food contact materials; U.S. applications require verification of the relevant Food Contact Notification for the grade. Terminal product types include baguette sleeves, bakery bags, dry snack pouches, and tea envelopes.
If the PBAT fraction is dropped below 10 wt% in e-commerce mailer film, the failure mode shifts from puncture to fold-crack propagation at the mailer flap crease, especially after the envelope is crushed through automated sorting equipment. The replacement of PBAT-rich film with an INZEA F08 majority formulation therefore requires a three-layer A/B/A structure in which INZEA F08 forms the skin layers and a PBAT-rich core provides elongation at break. The overall addition ratio is 75–90 wt% INZEA F08 and 10–25 wt% PBAT, with 1–3 wt% processing and antiblock masterbatch; the layer ratio is controlled at 30/40/30, and the skin layers contain no more than 5 wt% PBAT to preserve surface print key and seal response. Blown film extrusion is run at 40–60 μm total thickness with a blow-up ratio of 2.5:1, a die gap of 1.4–1.8 mm, and melt temperatures of 180–195°C. After corona treatment to 40–44 mN/m, the film is either converted with a compostable zipper strip or coated with a self-seal adhesive in a pattern that does not interfere with the bottom flap fold. Tear strength is verified per ISO 6383-2 and ASTM D1922-23, while package drop performance is evaluated under ASTM D5276-19. Compliance for the mailer market includes EN 13432:2000, ASTM D6400-21, ISO 17088:2021, and EC 1907/2006 for REACH substance registration; U.S. environmental claims must also satisfy 16 CFR Part 260 for misleading environmental marketing. Converters should verify that the compostable zipper strip and adhesive patch do not create a sieve residue above 2 mm after 12 weeks under ISO 20200 conditions. Terminal product types include compostable mailer envelopes, garment bags, and e-commerce returns bags.
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INZEA F08 Flexible High Tear Film Polylactic Acid is a compounded polylactic acid film extrusion grade in which a biodegradable flexibilising component alters the failure mechanism from brittle fracture to ductile tearing under film-fold and tear conditions. The grade is not a rigid thermoforming PLA; the F08 designation identifies a flexible high-tear film compound whose exact flexibiliser chemistry and loading are manufacturer-confidential and must be verified before any migration or food-contact assessment. The material is intended for blown film lines producing compostable packaging, carrier bags, and agricultural mulch films. Mechanical evaluation should combine ISO 527-3 tensile measurements on thin film with ISO 6383-2 Elmendorf tear and ASTM D1709-22 Method A dart drop; a single tensile yield value does not predict tear resistance in this compound.
Pre-drying of INZEA F08 is mandatory because melt-phase hydrolysis of polylactic acid accelerates above 230 °C, causing chain scission, viscosity loss, and die-lip deposit formation. The pellets should be dried in a desiccant dryer at 70–80 °C for 4–6 h to a final moisture content below 250 ppm. The drying-air dew point should remain at or below −30 °C; when the production area exceeds 60 % relative humidity, the machine hopper should be purged with dried air or nitrogen. A single-screw extruder with a 24:1 to 30:1 L/D barrier screw and a Maddock mixing section is appropriate. A representative barrel temperature profile from feed to die is 170/180/190/195 °C; melt temperature should be maintained between 195 °C and 205 °C and must not exceed 210 °C for residence times longer than 10 min. The die gap is normally set between 0.8 mm and 1.2 mm, with a blow-up ratio of 2.5:1 to 3.0:1 and frost-line height between 1.5 and 2.0 times the die diameter. Internal bubble cooling is recommended for gauge uniformity below 30 µm. On production-scale lines, melt pressure fluctuations above 10 % are frequently observed when wet pellets swell or bridge at the feed throat; a starve-fed hopper and low-shear screw reduce this bottleneck.
Rheologically, the melt is shear-thinning. Capillary rheometry under ISO 11443 at 190 °C places the apparent viscosity of flexible PLA film compounds between 200 Pa·s and 600 Pa·s in the shear-rate window of 100 s⁻¹ to 1000 s⁻¹. The power-law index typically lies between 0.3 and 0.5. Melt strength is lower than that of low-density polyethylene; bubble stability is maintained by internal bubble cooling, frost-line adjustment, and a die gap above 0.8 mm. Neck-in and sagging increase when melt temperature exceeds 210 °C or when residence time exceeds 12 min due to hydrolytic chain degradation.
The conversion of INZEA F08 into blown film shifts tear properties according to gauge, frost-line position, and longitudinal-transverse orientation. For specification testing, specimens should be conditioned for 40 h at 23 °C and 50 % relative humidity under ISO 291. Tensile modulus and elongation at break are measured on 15 mm wide strips at 200 mm/min per ISO 527-3. Flexible PLA film compounds in this class typically show elongation at break above 150 % and tensile modulus below 2000 MPa, but the terminal lot certificate should govern acceptance. Elmendorf tear strength measured per ISO 6383-2 on 30 µm film should exceed 5 N in both machine and transverse directions for most bag applications; values below this threshold indicate excessive moisture degradation or incomplete flexibiliser dispersion. Dart impact is measured by ASTM D1709-22 Method A; a fall-weight result above 100 g at 30 µm is a practical minimum for display packaging, while heavy-duty compostable sacks may require higher values. Published data for the exact F08 lot configuration is limited to the manufacturer’s technical datasheet, and external claims should not replace verification on the user’s film line.
Oxygen barrier in PLA-based film is moderate. Generic published oxygen transmission rates at 23 °C and 0 % relative humidity range from 30 cm³·m⁻²·day⁻¹·bar⁻¹ to 60 cm³·m⁻²·day⁻¹·bar⁻¹. Flexibilisation can increase oxygen permeability relative to rigid PLA; the F08 certificate should be consulted for grade-specific transmission values. Water vapour transmission rate measured under ISO 15106-3 at 38 °C and 90 % relative humidity is typically between 100 g·m⁻²·day⁻¹ and 200 g·m⁻²·day⁻¹ for PLA-based films. These values place the material outside high-barrier packaging unless coating, metallisation, or lamination is used.
Standard rigid PLA film grades exhibit tensile moduli above 2500 MPa and elongation at break below 20 %, which produces brittle failure at folded seams and poor Elmendorf tear resistance. INZEA F08 is formulated to lower modulus and increase elongation while retaining a polylactic acid backbone. The trade-off is a reduction in maximum service temperature relative to rigid PLA and a lower elongation than PBAT-rich blends. In direct comparison with PBAT-rich film, F08 provides higher stiffness and a more transparent film structure, but it does not equal the sub-ambient toughness of PBAT. In comparison with low-density polyethylene, the flexible PLA compound is compostable under industrial conditions but has lower melt strength and requires tighter moisture control. These differences determine material selection in compostable packaging stacks: F08 is specified when tear resistance and stiffness are both required, whereas PBAT-rich compounds are chosen when stretch elastic recovery or very high puncture displacement dominates.
The following comparative classes are drawn from generic published polymer-film property ranges at 30 µm gauge. They are not lot-specific acceptance values for INZEA F08 and must be confirmed against the manufacturer’s certificate of analysis.
| Film property at 30 µm gauge | Test method | Flexible PLA film class | Rigid PLA film class | PBAT-rich film class | LDPE film class |
|---|---|---|---|---|---|
| Tensile modulus | ISO 527-3 | 1200–2000 MPa | 2500–3500 MPa | 50–150 MPa | 150–300 MPa |
| Elongation at break | ISO 527-3 | 150–300 % | 5–20 % | 400–700 % | 300–600 % |
| Elmendorf tear strength | ISO 6383-2 | 5–15 N | 1–3 N | 15–35 N | 10–25 N |
| Dart impact | ASTM D1709-22 Method A | 100–300 g | 50–100 g | 300–800 g | 150–400 g |
Compostable shopping bags and lightweight packaging films made from INZEA F08 are usually targeted at gauge reductions to 15–25 µm. Continuous blown-film lines with corona treatment are used to raise surface energy above 38 mN/m for water-based flexographic inks and solventless lamination. Printing lines operating above 150 m/min require stable coefficient of friction; slip and antiblock masterbatches are typically added at 2–5 % by weight depending on gauge and storage humidity. The use of amine-containing additives should be avoided because alkali conditions accelerate PLA hydrolysis and can cause premature loss of tear strength. If film reels are stored in uncontrolled conditions above 60 % relative humidity, rewinding after pre-drying is recommended before printing or lamination. Heat sealing is best performed with constant-temperature sealers at 120–140 °C and 0.2–0.4 s dwell; excessive seal temperature causes transparent film embrittlement at the seam.
Additive interactions require lot-level screening. The flexibilising fraction in PLA can increase plasticiser migration into adjacent packaging films; migration kinetics in polymer matrices should be evaluated under EU Regulation 10/2011 or FDA 21 CFR 175.300 if direct food contact is intended. Slip agents such as erucamide can bloom to the film surface within 24–72 h; corona treatment after full migration stabilises ink adhesion. Antiblock masterbatches based on talc or natural silica should be used at low addition levels because high loadings above 5 % reduce Elmendorf tear strength. In laminated structures, polyurethane adhesive systems containing residual isocyanates should be tested for reaction with PLA hydrolysis products; a wash coat or primer may be required on high-moisture packaging lines.
PLA-based films lose ductility as service temperature approaches 10 °C. Cold-chain packaging and frozen-food overwrap must therefore be validated with dart impact at 5 °C under ASTM D1709-22 Method A rather than at room temperature. Flexible PLA compounds retain tear resistance better than rigid PLA, but they do not match the sub-zero impact of PBAT or LDPE. Agricultural mulch films made from PLA-based compounds are suited to soil incorporation only where soil moisture, microbial density, and temperature meet the requirements of industrial compostability or documented soil-biodegradation testing; ISO 17556 soil burial data at 20–28 °C should be reviewed before claims of in-soil disappearance are made. Large fragments remaining after 12 months indicate insufficient biodegradation and may require film gauge reduction below 15 µm.
Compostability verification for flexible PLA film is not a single test but a matrix of biodegradation, disintegration, and chemical safety methods. The following standards are routinely required for industrial compostable packaging. Users should confirm the certification status of the exact F08 grade and additive package with the supplier.
| Standard | Scope | Key requirement or condition |
|---|---|---|
| EN 13432:2000 | Packaging recoverable through composting and biodegradation | ≥ 90 % disintegration after 12 weeks; ≥ 90 % biodegradation after 6 months |
| ASTM D6400-23 | Compostable plastics for aerobic municipal and industrial facilities | ≥ 90 % CO₂ conversion relative to cellulose after 180 days |
| ISO 14855-1:2012 | Aerobic biodegradability under controlled composting conditions | CO₂ evolution at 58 °C; pass based on reference material |
| ISO 20200:2023 | Laboratory-scale disintegration of plastics under defined composting | Residual fragments < 2 mm after 12 weeks |
| ISO 17556:2019 | Aerobic biodegradation in soil | Used for soil-disintegration claims; not a substitute for industrial compost certification |
The compostability certification for INZEA F08 should be confirmed for the specific grade and layer thickness because tear-improving additives can shift the disintegration lag phase by several weeks. Industrial compostability under EN 13432 does not imply home compostability; a separate home-compost certification is required for backyard compost claims. Food-contact status must be evaluated under the intended food simulant and time-temperature conditions of the relevant national regulation, such as EU Regulation 10/2011 or applicable FDA 21 CFR sections. No environmental standard replaces migration testing or overall packaging compliance.
