ecovio F2223 Blown Film Compostable PLA Compound
- Название продукта: ecovio F2223 Blown Film Compostable PLA Compound
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- ecovio F2223 Blown Film Compostable PLA Compound is typically used in formulations when processing temperature and moisture content must be controlled within specific ranges.
| Код ТН ВЭД | 449042 |
Как аккредитованная фабрика компостируемого PLA-соединения ecovio F2223 Blown Film, мы соблюдаем строгие протоколы качества - каждая партия подвергается строгим испытаниям для обеспечения последовательных стандартов эффективности и безопасности.
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For retail vest-type carrier film converted on high-speed bag machines, ecovio F2223 is dried in a desiccant-bed hopper at 65–80 °C for 4–6 h to a residual moisture of <0.025 wt% (250 ppm); inadequate drying lowers bubble stability because hydrolysis of the PLA fraction reduces extensional viscosity at the frost line. A grooved-feed single-screw extruder with 25:1 to 30:1 L/D and compression ratio 2.8:1 to 3.2:1 is typically operated with barrel profiles of 155–180 °C and an adapter/die zone at 170–185 °C. The die gap is set at 0.8–1.2 mm, blow-up ratio 2.5:1–3.2:1, frost-line height 5–8 die diameters, and throughput on a 65 mm extruder is derated to 60–70% of LDPE throughput because PLA/PBAT compounds exhibit a narrower processing window between melt strength and shear-induced degradation. Compliance for EU and North American retail bag distribution is anchored to EN 13432:2000/AC:2005, ISO 17088:2021, and ASTM D6400; packaging heavy metal limits are evaluated under 94/62/EC, and constituent registration under REACH (EC 1907/2006). Formulation in this segment commonly maintains ecovio F2223 at 90–100 wt%; additions consist of 0–3 wt% certified PLA-carrier colour masterbatch and 0–2 wt% compostable slip/antiblock masterbatch, all dosed gravimetrically at the feed throat. Terminal conversion includes inline bottom gusseting, hot-bar sealing at 115–135 °C, and die-cut handle formation. Finished vest-type bags, T-shirt grocery sacks, and boutique retail bags are tested for tensile properties according to ISO 527-3, Elmendorf tear according to ISO 6383-2, dart impact according to ASTM D1709-16a Method A, and seal strength according to ASTM F88/F88M-15.
What Tear and Wet-Strength Thresholds Distinguish Organic Waste Liners From General-Purpose Carrier Film?
Organic waste liners differ from retail carrier film in that seam integrity must be retained after contact with wet vegetable waste, leachate, and repeated weight shifts inside collection containers. The conversion process for 8–30 L kitchen caddy liners and 40–120 L bin liners therefore starts with the same desiccant drying conditions but shifts to a higher bubble-stability regime: die gap 0.9–1.3 mm, blow-up ratio 2.8:1–3.5:1, and internal bubble cooling where line length permits, because uneven gauge below 14 µm creates preferential leak paths under wet load. Compliance in this segment is dominated by EN 13432 or ISO 17088 for industrial compostability, ASTM D6400 for North American municipal programmes, and EN 13592 for household refuse sack dimensions and mechanical resistance; where bio-waste collection is legally mandated, the finished liner must also demonstrate organic recovery in pilot-scale composting according to ISO 16929 and biodegradation according to ISO 14855-1. Formulation is less tolerant of diluents than retail film: ecovio F2223 is generally kept at 95–100 wt%, with 2–5 wt% certified carbon black masterbatch for opacity and 0.5–1.5 wt% compostable processing aid; calcium carbonate filler is restricted to <2 wt% because higher loadings reduce tear-propagation energy and increase pinhole frequency after film wrinkling. Film is tested for tensile elongation according to ISO 527-3, dart drop impact according to ISO 7765-1, Elmendorf tear according to ISO 6383-2 in both machine and transverse directions, and leakage resistance under EN 13592; seam strength is measured by ASTM F88/F88M-15 after sealing at 120–140 °C with dwell times of 0.5–1.0 s. Terminal articles include drawstring kitchen caddy liners, star-sealed bin liners, and 240 L curbside collection bags intended for municipal organic diversion. Process operators should not exceed melt temperatures of 185 °C during extended residence times, and opened raw-material bags stored above 50% RH require re-drying before blowing; these limitations reduce hydrolytic viscosity loss and batch-to-batch variation in transverse-direction tear.
Produce-packaging converters running ecovio F2223 at blow-up ratios between 3.0:1 and 4.0:1 face a competing requirement between clarity, gas exchange, and print adhesion after corona treatment. In direct-contact applications for whole unpeeled fruits and vegetables, the film must be supported by grade-specific conformity documentation under EU 10/2011 and EC 1935/2004, while US-bound materials are checked against applicable Food Contact Notifications or the appropriate 21 CFR clearance for polylactic acid polymers; mechanical and thermal processing can alter migration behaviour, so migration testing under EU 10/2011 is required for the finished film, not merely for virgin pellets. The formulation for rolled produce bags and pillow packs usually keeps ecovio F2223 at 97–100 wt%, with 0.5–2 wt% compostable antifog masterbatch to reduce droplet formation on internal surfaces and 0–1 wt% slip masterbatch for de-nesting on roll-fed bagging machines. The downstream process after blowing includes cold corona treatment at 38–42 mN/m for water-based print adhesion, followed by laser microperforation or hot-pin perforation; laser systems typically generate hole diameters of 0.1–0.5 mm with puncturing density adjusted to produce respiration rates matched to the packaged produce item, while hot-pin units produce larger macroperforations for high-moisture leafy greens. Optical and permeability properties are measured according to ISO 527-3 for tensile strength, ISO 6383-2 for tear resistance, ASTM D3985 for oxygen transmission, and ASTM F1249 for water vapour transmission. Terminal articles include clear fruit and vegetable roll bags, perforated lettuce bags, citrus flow packs, and short-shelf-life produce bags distributed through grocery retail channels; fatty or high-alcohol food contact is outside the demonstrated boundary unless additional migration studies are completed.
Secondary Packaging Conversion Without Formal Recompounding on LDPE Film Lines
On existing LDPE blown film equipment, retrofit for ecovio F2223 begins with thermal profile recalibration rather than screw replacement, because the compound achieves bubble stability at lower melt temperatures than linear low-density polyethylene. Barrel temperature settings are kept between 155 °C and 180 °C, adapter and die zones from 170 °C to 185 °C, and screw speed is reduced to limit viscous heat; a screw-cooling circuit is recommended on extruders above 75 mm to prevent localized melt temperatures above 190 °C. Secondary packaging applications such as non-food poly mailers, garment bags, and document envelopes are subject to REACH (EC 1907/2006), heavy metal thresholds under 94/62/EC, and compostability conformity under EN 13432 or ASTM D6400; where the packed article is an electronic accessory, customer-specific RoHS documentation may be requested even though packaging is not normally within the scope of RoHS 2011/65/EU. The formulation may include 90–95 wt% ecovio F2223 with 5–10 wt% of a certified PBAT-rich compostable modifier to improve tear-propagation resistance after courier handling; total additive masterbatch levels remain below 2 wt% unless the supplier provides certification that the complete formulation retains the original compostability mark. Conversion uses a die gap of 0.9–1.2 mm and blow-up ratio 2.8:1–3.5:1, followed by inline slitting and roll-fed bag making; continuous hot-bar sealing at 120–140 °C is preferred over impulse sealing because the PLA phase can embrittle at excessive jaw temperature. Finished articles are evaluated for dart impact according to ISO 7765-1, tear resistance according to ISO 6383-2, seal strength according to ASTM F88/F88M-15, and film-to-film coefficient of friction according to ISO 8295; published data for this specific configuration is limited, so courier-drop simulation and seam failure testing are required before large-volume adoption. Terminal types include non-food e-commerce mailers, garment bags, soft-cover book envelopes, and void-fill film for fragile non-food goods.
When film thickness exceeds 50 µm, garden and leaf waste sacks shift from consumer packaging to load-bearing outdoor bags that carry wet grass, branches, and abrasive yard debris. The applicable compliance stack for these non-food products includes EN 13432 or ISO 17088:2021 for industrial compostability and ASTM D6400 for North American labelling; AS 4736-2006 is often requested for Australia/New Zealand shipments. Formulation adjustments protect against failure at gusset folds: ecovio F2223 is used at 85–95 wt%, blended with 5–15 wt% certified PBAT-rich compostable polymer to improve puncture-propagation resistance and transverse-direction tear; the blend must be verified for compostability as a complete film, not inferred from individual component certificates. The blown film process uses a die gap of 1.0–1.5 mm, blow-up ratio 2.0:1–3.0:1, and side gusseting to form flat-bottom closures; online winding tension is reduced compared with LDPE to prevent blocking and surface deformation. Thickness profiles are checked with a capacitance gauge scanner, and finished sacks are tested for dart impact according to ISO 7765-1, Elmendorf tear according to ISO 6383-2, tensile properties according to ISO 527-3, and seam integrity under filled load for 80–240 L capacities. Terminal articles include self-standing yard waste sacks, leaf collection bags, and municipal garden waste sacks. Because industrial compostability is not soil burial, filled sacks should not be stored in standing water or used as soil-contact mulch unless a separate soil-biodegradation standard such as EN 17033 has been evaluated for the specific formulation.
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- ecovio F2223 Blown Film Compostable PLA Compound Производится в соответствии с системой качества ISO 9001 и отвечает соответствующим нормативным требованиям.
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ecovio F2223 Blown Film Compostable PLA Compound is a pelletized biodegradable polyester compound formulated specifically for blown film extrusion. The product is manufactured from polylactic acid and a biodegradable aliphatic-aromatic copolyester, creating a two-phase morphology in which the higher-modulus PLA-rich phase contributes stiffness, while the copolyester phase contributes tear resistance, melt strength, and ductility. This structure differentiates the product from unmodified PLA, which tends toward brittle film failure under standard tubular film conditions, and from PBAT-rich compounds, which exhibit lower modulus and higher elongation. The grade is intended for industrial compostable film applications, including organic waste collection bags, agricultural mulch films, and lightweight packaging films. Certification status is grade-specific and thickness-dependent under EN 13432:2000/AC:2005, ASTM D6400-23, and ISO 17088:2021; the converter must confirm that additives, inks, film thickness, and lamination fall within the certified scope. The compound is not formulated for cast film, injection molding, or hot-fill service.
The density of ecovio F2223 under ISO 1183-1:2019 is typically in the range 1.24–1.26 g/cm³. Melt-volume rate under ISO 1133-1:2022 at 190 °C and 2.16 kg is reported in the low range required for blown film bubble stability, typically 3.5–4.5 cm³/10 min. Bulk density under ISO 60:2023 is approximately 0.75–0.85 g/cm³. These values place the compound between unmodified PLA, which generally has a similar density but lower practical melt strength on conventional blown film equipment, and PBAT-rich compostable films, which often have higher melt-volume rates and lower tensile modulus. The pellets are hygroscopic and must be dried before extrusion; storage at 23 °C and relative humidity above 60% requires desiccant drying prior to each processing run.
What processing parameters control bubble stability and gauge uniformity in ecovio F2223?
Because the PLA phase undergoes hydrolytic chain scission when moisture content exceeds 0.025% w/w, drying is mandatory. A desiccant dryer with a dew point below −40 °C and inlet air temperature between 60 °C and 80 °C for 4–6 h reduces pellet moisture below the threshold. Drying air temperature above 80 °C can induce pellet bridging and partial melting in the hopper, creating feed interruptions. Residual moisture above 0.05% w/w produces film fisheyes, viscosity loss, and unstable bubble geometry. On a 45 mm single-screw extruder with L/D 30, the barrel temperature profile is commonly set from 150 °C at the feed throat to 175 °C at the metering section, with adapter and die at 175–180 °C. Melt temperature measured at the die should remain below 190 °C. Melt pressures above 180 bar indicate excessive restriction or low temperature and increase shear heating, resulting in lactide formation and die-lip fouling.
Die gaps of 0.8–1.4 mm, blow-up ratios of 2.5:1–3.5:1, and frost-line heights between 1.5 and 3.0 die diameters are typical starting conditions. For film below 20 µm, internal bubble cooling is recommended to stabilize the bubble and maintain a low coefficient of variation in gauge across the layflat width. On a 60 mm single-screw line with 150 mm die, stable operation at 25 µm gauge is reported when melt pressure remains below 180 bar and line speed is held between 20 m/min and 40 m/min. At line speeds above 50 m/min, web tension and roll-blocking tendency increase; corona treatment and winding tension must be reduced to avoid film stretching and blocking. Blocking is more pronounced in ecovio F2223 than in PBAT-rich films because the higher PLA content reduces surface slip. An antiblock masterbatch at 0.5–1.0 wt% is commonly used, but the additive must be certified compostable and compatible with the degradation profile.
Mechanical response of a 30 µm blown film conditioned at 23 °C and 50% RH under ISO 291:2018 is typically measured using ISO 527-3:2018. Machine-direction tensile stress at break is reported in the range 28–35 MPa, and transverse-direction stress at break is 22–28 MPa. Corresponding elongation at break exceeds 350% in both directions; machine-direction values above 450% are observed when film orientation is balanced by correct blow-up ratio and frost-line control. Elmendorf tear resistance under ISO 6383-2:1983 for the same film is 12–18 N/mm in the machine direction and 15–22 N/mm in the transverse direction. Dart drop impact measured under ASTM D1709-22 Method A for 25 µm film is generally above 150 g, but published data for this specific configuration is limited. Seal initiation temperature on a laboratory heat sealer at 0.2 MPa jaw pressure and 1 s dwell time is typically 95–110 °C; this is lower than unmodified PLA but higher than many PBAT-rich films. Water vapor transmission rate under ISO 15106-3:2005 at 23 °C and 85% RH is typically 180–220 g/m²·day for 30 µm film, which permits controlled moisture evaporation in organic waste bag service.
When ecovio F2223 replaces unmodified PLA or PBAT-rich compounds in film structures
Direct substitution of unmodified PLA with ecovio F2223 alters the failure mode from brittle crack propagation to ductile yielding. Unmodified PLA blown film typically shows tensile strain at break below 30% and Elmendorf tear resistance below 5 N/mm; ecovio F2223 increases elongation at break by more than one order of magnitude and tear resistance by at least a factor of three under the same ISO 527-3 and ISO 6383-2 conditions. Conversely, replacement of a PBAT-rich compostable film with ecovio F2223 raises tensile modulus from approximately 80–120 MPa to 200–300 MPa and lowers elongation at break from above 600% to typically 350–500%. The higher modulus supports downgauging of film structures, but it also increases stiffness-related handle and crinkle. Haze under ASTM D1003-21 for 30 µm film can exceed 20%, while PBAT-rich films frequently remain below 15%. If optical clarity is a primary specification, ecovio F2223 is not the preferred material.
| Property | Test method | ecovio F2223 | Unmodified PLA | PBAT-rich |
|---|---|---|---|---|
| Tensile stress at break, machine direction | ISO 527-3:2018 | 28–35 MPa | 40–60 MPa | 15–25 MPa |
| Tensile strain at break, machine direction | ISO 527-3:2018 | 350–500% | 5–30% | 600–900% |
| Tensile modulus, machine direction | ISO 527-3:2018 | 200–300 MPa | 2000–3500 MPa | 80–120 MPa |
| Elmendorf tear resistance, machine direction | ISO 6383-2:1983 | 12–18 N/mm | 2–6 N/mm | 20–35 N/mm |
| Melt-volume rate, 190 °C/2.16 kg | ISO 1133-1:2022 | 3.5–4.5 cm³/10 min | 2–6 cm³/10 min | 5–15 cm³/10 min |
| Seal initiation temperature | Laboratory heat sealer, 0.2 MPa, 1 s | 95–110 °C | 120–140 °C | 80–100 °C |
Conversion of ecovio F2223 into organic waste bags uses standard blown film downstream equipment with corona treatment for print adhesion. The surface energy after corona treatment should reach 38–42 mN/m under ASTM D2578-23 for water-based flexographic inks. Heat sealing is performed at 95–115 °C on rotary sealers with jaw dwell times of 0.3–0.5 s; seal strength under ASTM F88/F88M-23 typically exceeds 8 N/15 mm for 25 µm film when sealing parameters are optimized. Excessive seal temperature above 120 °C causes film distortion and sticking to the sealing jaw. A 2.0 mm cutting gap on bag-converting lines minimizes roll blocking because the compound has a lower Vicat softening temperature than unmodified PLA. Silicone-coated blades or periodic lubrication may be required at line speeds above 150 m/min.
| Standard/regulation | Scope | Key pass criteria | Status |
|---|---|---|---|
| EN 13432:2000/AC:2005 | Industrial compostability of packaging | ≥90% disintegration in 84 days; ≥90% biodegradation in 180 days; ecotoxicity per Clause 8 | Certified for selected film gauges |
| ASTM D6400-23 | Compostable plastics in municipal and industrial facilities | Heavy metal limits per Section 6; biodegradation and disintegration requirements per Sections 7 and 8 | Certified for selected film thicknesses |
| ISO 17088:2021 | Global specification for compostable plastics | ≥90% biodegradation in 180 days; ≥90% disintegration in 84 days; absence of adverse ecotoxicity | Conformity declared by certification body |
Operational boundaries for ecovio F2223 are defined by thermal stability, moisture sensitivity, and service temperature. The compound should not be processed above 190 °C melt temperature or held at processing temperature for more than 15 min during interruption, because lactide reformation accelerates and melt viscosity decreases. Pellets stored at 23 °C and relative humidity above 60% require drying before each extrusion run; opened bulk containers should be re-sealed or consumed within 8 h when ambient dew point is above 10 °C. Finished film should not be used for hot-fill applications above 60 °C or in microwave heating because dimensional stability and seal integrity decline as the PLA phase approaches its glass transition region. The grade is not designed for marine biodegradability or home compost environments unless an additional certified home compost claim is issued for the specific article. Lamination with conventional polyethylene or EVOH layers compromises industrial compostability unless the resulting structure is re-certified under EN 13432 or ASTM D6400. Converter-made dry blends of PLA and PBAT pellets do not reproduce the melt-phase uniformity of ecovio F2223; hopper segregation and gauge bands may occur if blended pellets are fed without compounding.
