INZEA F13C Blown Film Paper Coating Compostable Polylactic Acid
- Product Name: INZEA F13C Blown Film Paper Coating Compostable Polylactic Acid
- Factroy Site: Yinchuan, Ningxia, China
- Price Inquiry: sales8@ascent-chem.com
- Manufacturer: Ascent Petrochem Holdings Co., Limited
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- INZEA F13C Blown Film Paper Coating Compostable Polylactic Acid is typically used in formulations when melt viscosity and processing temperature must be controlled within specific ranges.
| HS Code | 475484 |
| Material Type | Compostable polylactic acid (PLA)-based polymer |
| Application | Blown film and paper coating |
| Density | 1.25 g/cm3 |
| Melt Flow Rate | 6-8 g/10 min at 190 °C/2.16 kg |
| Melting Point | 150-160 °C |
| Glass Transition Temperature | 55-60 °C |
| Vicat Softening Temperature | 60 °C |
| Tensile Strength | 30-35 MPa |
| Elongation At Break | 200-300% |
| Tensile Modulus | 1200-1500 MPa |
| Biobased Content | > 60% |
| Compostability Standard | EN 13432 / ASTM D6400 |
| Food Contact Compliance | Suitable for food contact |
| Processing Temperature | 160-190 °C |
| Drying Condition | 80 °C for 4 hours |
| Renewable Carbon Content | > 60% |
| Moisture Sensitivity | Hygroscopic; requires drying before processing |
As an accredited INZEA F13C Blown Film Paper Coating Compostable Polylactic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | INZEA F13C is supplied in 25 kg moisture-proof paper bags, palletized and stretch-wrapped for safe transport and storage. |
| Container Loading (20′ FCL) | 20′ FCL container loading: INZEA F13C compostable polylactic acid for blown film and paper coating, palletized, dry, secure stowage. |
| Shipping | INZEA F13C is shipped as non-hazardous, compostable polylactic acid resin pellets in moisture-barrier bags, inside cartons or sacks on pallets. Keep dry, sealed, and below 30°C; avoid direct sunlight, heat, and humidity. No special dangerous-goods classification applies; standard dry-van transport is suitable. Maintain original packaging and pallet stability during handling. |
| Storage | Store INZEA F13C in a cool, dry, well-ventilated warehouse, away from direct sunlight, heat, moisture, and strong odors. Keep containers tightly sealed in original packaging to prevent moisture uptake. Maintain ambient temperature, preferably below 30°C, with low humidity. Avoid strong oxidizers. Protect from physical damage. Good ventilation is recommended. Use first-in, first-out rotation and reseal partially used bags promptly. |
| Shelf Life | Typical shelf life is 12 months when stored unopened in a cool, dry place, protected from moisture, heat, and sunlight. |
A 22–38 µm extrusion-coated layer of INZEA F13C on 250–310 µm cupstock enters the converting chain as a non-polyolefin barrier for short-time hot-fill liquids. The resin is pre-dried at 80 °C for 4 h to a moisture content below 250 ppm by Karl Fischer coulometry according to ISO 15512 before a single-screw extruder with L/D 24:1–30:1 and 0.5–0.8 mm die gap applies the melt at 200–230 °C; die exit temperature above 245 °C produces lactide odour and accelerates edge neck-in at the chill roll. Chill-roll temperature is held at 18–25 °C, and corona treatment to 42–48 mN/m per ASTM D2578 is applied before side-seam sealing. Formulation addition ratios for this structure are 98–100 wt% INZEA F13C with 0–2 wt% slip/antiblock masterbatch; filler loadings above 5 wt% produce pinholes at pleats and rim curls. Industry compliance is governed by EU Regulation 10/2011 with overall migration ≤ 10 mg/dm² into aqueous simulant, FDA 21 CFR 176.170 for paper and paperboard in contact with aqueous and fatty foods, and EN 13432/ASTM D6400 for industrial composting of the finished cup. Terminal products are 150–350 mL single-wall hot drink cups, 250–500 mL soup cups, and hot-side clamshells with PLA lidding; continuous service is limited to 80–90 °C short contact, not retort or boiling conditions.
| Regulation/Standard | Scope | Key test designation or limit | Application to INZEA F13C coated board |
|---|---|---|---|
| EU Regulation 10/2011 as amended by 2020/1245 | Plastic food-contact layers | Overall migration ≤ 10 mg/dm²; Annex II SML | EU food-contact paper coating |
| FDA 21 CFR 176.170 | Paper and paperboard in aqueous and fatty food contact | Extractives limits as specified in §176.170 | US coated cups, trays, pouches |
| EN 13432, ASTM D6400, ISO 17088 | Industrial compostability | Disintegration 90% w/w after 12 weeks; biodegradation 90% after 6 months | Final article certification, not resin alone |
| AS 5810, NF T51-800, OK compost HOME | Home compostability | Disintegration at 25 ± 5 °C within 12 months | Home compostable mailers and caddy liners |
| ASTM D2578 | Surface wettability of treated polymer films | Dyne level 42–48 mN/m | Corona treatment before printing or sealing |
| ISO 15512 | Water content in plastics | Residual moisture ≤ 250 ppm before extrusion | Pre-drying and hydrolysis control |
| ISO 15985 | High-solids anaerobic digestion | Biogas generation and disintegration under high-solids conditions | Organics collection sacks |
What Limits Chill-Roll Release in Chilled Ready-Meal Paperboard Tray Coating?
Chill-roll release behaviour on 18–25 µm PLA-coated solid bleached sulfate board is governed by the relationship between extrudate temperature at the pressure roll and the surface finish of the stainless-steel chill roll. The coating layer is processed on a tandem extrusion-lamination line at 150–250 m/min; melt temperature at the die is 200–225 °C, air gap 100–200 mm, and chill-roll water supply set to 15–20 °C. Release failure occurs when the chill roll surface is polished above 0.15 µm Ra without a silicone-free release agent or when board moisture exceeds 8%; converters routinely run the roll at 18–20 °C and monitor coat weight by beta gauge across the web to hold ±1.5 g/m². Formulation addition ratios are 90–100 wt% INZEA F13C, 0–10 wt% certified compostable copolyester for cold-chain impact resistance, 0–5 wt% pigmented PLA masterbatch, and 0.5–1.5 wt% slip/antiblock. Industry compliance includes EU Regulation 10/2011, FDA 21 CFR 176.170, EN 13432, and ISO 17088; if the tray is used for whole fruit or vegetables, the converter may additionally verify paperboard contact under BfR Recommendation XXXVI. Terminal finished products include chilled ready-meal trays, fresh-cut produce punnets, and delicatessen bowls sealed with compostable lidding film at 4–8 °C. The structure is not intended for retort, hot-fill above 60 °C, or microwave reheating because PLA softens at 55–60 °C.
Because PLA lacks the bar sealability and low shear viscosity of LDPE, extrusion lamination of INZEA F13C onto 35–45 g/m² machine-finished greaseproof paper for dry-food pouches requires careful control of back-pressure and web tension rather than drop-in substitution. The coating weight is held at 10–15 g/m², with ±0.8 g/m² cross-web variation, using an extruder with L/D 28:1 and a flat die gap of 0.4–0.6 mm; line speed ranges from 180–280 m/min on north European conversion lines. The addition ratio is 100 wt% INZEA F13C or 99–100 wt% with 0.5–1.0 wt% erucamide-free slip masterbatch; no filler is used because dispersed inorganic particles create microvoids that lower grease resistance and initiate flex-crack delamination. Compliance standards are EU Regulation 10/2011, FDA 21 CFR 176.170, and EN 13432; paper recycling compatibility may be evaluated by the converter using CEPI recyclability test methods, but published data for this specific configuration is limited. Terminal products include single-portion sugar sachets, dry beverage pouches, tea envelopes, and bakery bread bags; these are not suitable for high-moisture or oxygen-sensitive contents because water vapour transmission rate must be measured per ISO 15106-1 for each coating weight and substrate combination.
When a 45 µm Blown Film Replaces Polyethylene in Home-Compostable E-commerce Mailers
In blown film, the bubble stability of INZEA F13C at 190 °C melt temperature depends on moisture removal and die lip cleanliness; production-scale lines with L/D 28:1 and 1.0–1.5 mm die gaps run stable bubbles at blow-up ratios between 2.5:1 and 3.5:1 only when the resin is dried below 250 ppm moisture. For e-commerce mailers requiring puncture and tear resistance beyond neat PLA, the formulation is 65–85 wt% INZEA F13C blended with 15–35 wt% PBAT or PBS-certified compostable copolyester, plus 0.5–1.5 wt% slip and 1–2 wt% antiblock masterbatch; at 45 µm film thickness, the blend increases Elmendorf tear per ASTM D1922 and dart-drop impact per ISO 7765-1 but sacrifices tensile modulus relative to neat PLA. Process parameters include extruder barrel profile 160 °C, 175 °C, 185 °C, 190 °C, 195 °C, die head 195–205 °C, and haul-off speed adjusted to maintain 45–60 µm final thickness after orientation. The film is post-treated to 42–46 mN/m per ASTM D2578 for printing. Industry compliance includes EN 13432, ASTM D6400, AS 5810, and OK compost HOME certification for the final article; if the mailer is used for cosmetics or electronics, REACH SVHC screening and no-intentionally-added per- and polyfluoroalkyl substance declarations are also contractually required. Terminal finished products include home-compostable e-commerce mailers, garment bags, magazine wraps, and void-fill sleeves. Published production-scale data for this specific bubble configuration is limited; converter-run design-of-experiment trials are normally required before commercial commitment.
At -18 °C storage temperature, the flexural modulus of INZEA F13C-coated board increases and adhesion to the fibre surface becomes the primary failure mode under mechanical abuse. The board is coated at 20–30 µm on one side of 350–450 µm bleached sulphate board using a 90 mm single-screw extruder with L/D 30:1, die gap 0.5–0.7 mm, melt temperature 200–225 °C, and chill roll 12–18 °C; corona treatment to 44–48 mN/m is applied after coating to enable water-based flexo printing. Formulation addition ratio is 97–100 wt% INZEA F13C with 0–3 wt% compostable processing aid and 0–5 wt% titanium dioxide white masterbatch when opacity is required; slip is kept below 1 wt% because higher levels reduce fibre adhesion and cause delamination at fold scores. Compliance includes EU Regulation 10/2011, FDA 21 CFR 176.170, EN 13432, and ISO 17088; because frozen fish and meat boards contact fatty simulants, converters test migration into vegetable oil simulant under the conditions specified in EU Regulation 10/2011. Terminal products include ice cream cartons, frozen seafood trays, frozen vegetable boxes, and multipack wraparound sleeves. Temperature boundary: the coated board is dimensionally stable in frozen distribution but must be filled at ≤ 50 °C; hot filling or retorting is outside the material limit.
Organics Collection Sack Coating and Anaerobic Digestion Boundary Conditions
Coating wet-strength kraft with 18–25 µm of INZEA F13C for organics collection sacks shifts failure mode from fibre tear to delamination if the substrate’s wet-strength agent interferes with PLA carboxyl end groups. The extrusion coating process uses a single-screw extruder at L/D 26:1–30:1, die gap 0.5–0.6 mm, melt 195–215 °C, and a matte chill roll at 20–25 °C to reduce blocking during rewind. The addition ratio is 95–100 wt% INZEA F13C with 0–5 wt% titanium dioxide masterbatch and 0–1 wt% slip; no non-compostable tie layer is used because it would fail EN 13432 disintegration. The coated sacks meet EN 13432, AS 5810, and NF T51-800 home-compost certification when the final article passes disintegration tests at 25 ± 5 °C within 12 months, and industrial anaerobic digestion compatibility is evaluated according to ISO 15985. Terminal products include kitchen caddy liners, yard-waste paper sacks, and municipal organics collection bags. The operational boundary is that these coatings are not suitable for liquid food contact or high-hydrostatic-head applications; if the sack is overloaded at 8–10 kg, fibre tear precedes compostability failure.
Competitive INZEA F13C Blown Film Paper Coating Compostable Polylactic Acid prices that fit your budget—flexible terms and customized quotes for every order.
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- INZEA F13C Blown Film Paper Coating Compostable Polylactic Acid is manufactured under an ISO 9001 quality system and complies with relevant regulatory requirements.
- COA, SDS/MSDS, and related certificates are available upon request. For certificate requests or inquiries, contact: sales8@ascent-chem.com.
INZEA F13C is a compostable polylactic acid grade supplied in pellet form for blown film extrusion and paper or paperboard coating where industrial compostability is required. The product is specified with a density of 1.24 g/cm³ when measured according to ISO 1183-1:2019, and a melt flow rate of 6 g/10 min at 190 °C under a 2.16 kg load when tested according to ISO 1133-1:2022. These properties place it in the medium-viscosity range for extrusion coating, requiring controlled pre-drying before processing. As-supplied moisture content is normally below 0.25%, but the material must be dried to below 0.025% residual moisture to avoid hydrolytic molecular-weight loss during extrusion. The supplier-recommended drying condition is 70 °C for 4 h in a desiccant dryer with a dew point of -40 °C or lower.
| Property | Test method | Value |
|---|---|---|
| Melt flow rate | ISO 1133-1:2022 | 6 g/10 min |
| Density | ISO 1183-1:2019 | 1.24 g/cm³ |
| Melting temperature | ISO 11357-3:2018 | 150–160 °C |
| Glass transition temperature | ISO 11357-2:2020 | 55–60 °C |
| Tensile yield strength | ISO 527-2:2012 | 55–60 MPa |
| Tensile modulus | ISO 527-2:2012 | 3200–3600 MPa |
| Elongation at break | ISO 527-2:2012 | 4–6% |
| Moisture content as supplied | ISO 15512:2019 | ≤ 0.25% |
The primary application envelope for INZEA F13C is the replacement of petroleum-based extrusion-coating layers on kraft paper, folding carton board, and compostable film structures. In blown film converting, the grade is used for tubes, liners, and compostable packaging films in which stiffness, surface gloss, and renewable carbon content are specified. The material is not a drop-in replacement for LDPE on high-speed coating lines; its processing window is narrower and its melt temperature must be controlled within a defined band. Published data for the exact neck-in and drawdown limits of F13C on specific coaters is limited, so pilot-scale qualification is required before production line escalation.
What prevents unmodified PLA from running on high-speed paper-coating lines?
Unmodified PLA frequently fails in extrusion coating because the polymer melt exhibits low extensional viscosity. In the air gap between the coating die and the chill roll, the molten curtain is stretched at high strain rates. If the extensional response is insufficient, the curtain edges taper inward, producing neck-in and edge-bead variation. Unmodified PLA grades with melt flow rates above 10 g/10 min at 190 °C are particularly prone to curtain sagging at line speeds above 80 m/min on dies wider than 1000 mm. INZEA F13C is differentiated by a formulation that shifts the low-frequency melt elasticity upward without increasing the melt flow rate beyond 6 g/10 min. This is observable in capillary rheometry as increased melt tensile force at 190 °C and in oscillatory shear as a higher storage modulus between 0.1 rad/s and 1 rad/s. The modification is proprietary, but F13C remains a polylactic acid product and should not be assumed to contain PBAT as a dominant modifier.
For coating operations, the die gap is typically set at 0.5–0.7 mm, and the air gap is maintained between 150 mm and 250 mm. A shorter air gap improves adhesion to corona-treated paper but reduces the time available for melt-curtain stability. Chill roll temperature is held at 15–25 °C. At these settings, F13C-coated paper can be produced at coating weights of 15–30 g/m². The resulting coating contributes stiffness, heat-seal response, and compostability, but it does not provide the water-vapour or oxygen barrier of metallised film or high-barrier dispersion coatings.
Extrusion equipment configuration for blown film conversion
F13C blown film processing requires a single-screw extruder with an L/D ratio of at least 30:1 and a compression ratio between 2.5:1 and 3.0:1. A barrier screw with a metering section designed for medium-viscosity polyester melts is preferable. Barrel temperatures are profiled from 170 °C in the feed zone to 190 °C in the metering zone. The die temperature is held at 195–205 °C. Melt temperature must not exceed 210 °C. Above 220 °C, polylactic acid undergoes accelerated unzipping and lactide reformation; the volatile lactide deposits on die lips and destabilises bubble geometry.
The die gap in blown film is set between 1.0 mm and 1.2 mm, and the blow-up ratio is limited to 2.0:1–3.0:1. Frost line height should be maintained between 2 and 4 die diameters. Higher frost lines increase haze and reduce dart drop resistance because the oriented PLA network is not relaxed sufficiently before crystallisation. Melt residence time should remain below 10 min. When bubble instability occurs, the first corrective action is to lower the melt temperature and verify that residual moisture is below 0.025%, rather than increasing blow-up ratio or frost line height.
Batch-to-batch variation in moisture content is a significant converting bottleneck. If pellets are stored at relative humidity above 60%, surface moisture increases rapidly and the bubble exhibits edge tear and audible popping. Inline moisture analysers on the feed throat or vacuum vent are recommended. Edge-trim regrind should not exceed 20% of the feed stream unless the regrind is dried and the melt-viscosity variation is monitored by melt-pressure fluctuation.
When paper or paperboard replaces polyethylene in extrusion coating
Substitution of an LDPE extrusion-coating layer with F13C changes the thermal profile, the sealing window, and the mechanical response of the coated sheet. F13C has a glass transition temperature of 55–60 °C and a sharp melting endotherm between 150 °C and 160 °C. LDPE, by comparison, has a broad melting range and elongates beyond 300% before failure. The PLA coating therefore heat-seals at jaw temperatures of 130–150 °C on intermittent sealers, but the hot-tack window is narrower than that of LDPE. Hot-tack evaluation should be performed according to ASTM F1921-18 before vertical form-fill-seal conversion is transferred from LDPE.
The tensile modulus of F13C is in the range of 3200–3600 MPa, which is higher than common PBAT-modified compostable compounds. This increases paperboard bending resistance and produces a crisper coating surface. However, elongation at break remains below 10%, so the coating does not provide puncture toughness in produce bags or stretch-film applications. PBAT-rich compounds with elongation above 300% remain preferable where high deformation tolerance is required. F13C is selected when stiffness, surface cleanliness, and compostability dominate the specification.
| Attribute | INZEA F13C | Unmodified PLA | PBAT/PLA compound | LDPE extrusion coating |
|---|---|---|---|---|
| Tensile modulus, ISO 527-2:2012 | 3200–3600 MPa | 3300–3800 MPa | 150–400 MPa | 200–400 MPa |
| Elongation at break, ISO 527-2:2012 | 4–6% | 3–8% | 200–600% | 300–600% |
| Compostability | EN 13432:2000, ASTM D6400-23 | EN 13432:2000, ASTM D6400-23 | EN 13432:2000, ASTM D6400-23 | Not compostable |
| Coating line speed relative to LDPE | Moderate | Low, edge-instability limited | Moderate to high | High |
Corona treatment of the paper or board surface is required before the molten PLA web contacts the substrate. The recommended wetting tension is 40–46 dyn/cm. Without inline corona, adhesion to sized kraft paper is inconsistent, and the coating peels under flexographic printing or creasing. The coated surface itself has a surface energy of approximately 38–42 mN/m; water-based inks and cold-seal adhesives require additional corona or primer treatment at the converter.
Compostability certification and food-contact status
Compostability claims for INZEA F13C are supported by testing under EN 13432:2000 and ASTM D6400-23. The material is intended for industrial aerobic composting systems with sustained thermophilic conditions above 58 °C. Disintegration is assessed according to ISO 16929:2021 and ISO 20200:2015. Aerobic biodegradation is measured by ISO 14855-1:2012 or ASTM D5338-15, with a threshold of 90% biodegradation relative to a cellulose reference within 180 days. Home composting certification should not be assumed for PLA-based films because degradation below 30 °C is substantially slower.
Food-contact documentation is typically available under EU 10/2011 and FDA 21 CFR 175.300. However, the final multilayer paper structure must be migration-tested at the finished coating weight because low-molecular-weight lactide and coating additives can migrate into food simulants. Migration testing under EU 10/2011 with 3% acetic acid and 10% ethanol simulants is recommended for acidic and aqueous-fatty food contact. REACH compliance is managed under Regulation (EC) 1907/2006; the polymer itself is exempt from registration under Article 2(9), but monomer and additive components require registration.
Moisture uptake above 0.025% hydrolyzes PLA within the barrel
The critical process boundary for F13C is residual moisture. At melt temperature, water hydrolyzes the polyester backbone and reduces molecular weight within seconds. A moisture content above 0.025% produces brittle film, edge tear, and a measurable drop in melt pressure at constant screw speed. The same failure occurs when the material is exposed to ambient air above 60% relative humidity after drying. Therefore, dried pellets should be conveyed to the feed throat with dried-air or vacuum loading, and hopper residence time should be limited.
F13C is incompatible with amine-based additives, high-pH fillers, and peroxide concentrates. Alkaline conditions catalyse chain scission during extrusion. Acidic or neutral processing aids are preferable when slip or antiblock is required. The material should not be purged with LDPE or PP at high temperatures unless the PLA is fully displaced, because mixed polymer residues form brittle gels and die drips. As a final operational boundary, the melt should not remain above 210 °C for more than 10 min. Exceeding this condition generates lactide vapour and accelerates molecular-weight loss even when the polymer is dry.
