Products
Products
Products
| HS Code | 245517 |
| Color | Blue |
| Material | Polyethylene Terephthalate (PET) |
| Thickness | Typically ranges from 12μm to 100μm |
| Release Force | Low to moderate (measured in g/25mm) |
| Surface Type | Smooth or matte |
| Tensile Strength | High |
| Elongation At Break | Typically 80-150% |
| Thermal Stability | Up to 150°C |
| Chemical Resistance | Good resistance to most chemicals |
| Adhesive Compatibility | Suitable for silicone and acrylic adhesives |
| Clarity | Opaque |
| Width | Customizable, commonly 500mm to 1500mm |
| Length | Available in rolls of various lengths |
| Application | Used as protective release liner |
| Moisture Resistance | Excellent |
As an accredited Blue PET Release Film factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The Blue PET Release Film is packaged in rolls, 50 meters each, sealed in protective plastic wrap, and packed 10 rolls per carton. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Blue PET Release Film: Standard 20' container loads approx. 8-10 tons, securely packed on pallets. |
| Shipping | The Blue PET Release Film is securely packaged in rolls, wrapped with protective material to prevent damage during transit. Each roll is placed in sturdy boxes or wooden pallets, ensuring safe shipping. Standard delivery options include air, sea, or express courier services, with tracking provided and delivery times dependent on destination. |
| Storage | Blue PET Release Film should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and sources of heat or ignition. Keep rolls in their original packaging to prevent contamination and physical damage. Avoid exposure to moisture and chemicals. Store horizontally on flat surfaces and maintain temperatures between 15–30°C (59–86°F) for optimal product performance and longevity. |
| Shelf Life | Blue PET Release Film typically has a shelf life of 12 months when stored in a cool, dry place, sealed within original packaging. |
Blue PET release film serves critical functions in modern industrial production environments, supporting sophisticated processes that demand tight dimensional tolerance, contamination control, and reliable performance under continuous or batch operation. Through direct experience with large-scale customer lines, we supply this specialty film to distinct market segments requiring consistent, proven release characteristics and visual traceability in complex manufacturing steps.
In battery cell assembly, blue PET release film operates as a temporary liner during electrode coating, calendaring, and lamination. Manufacturers rely on the film for uniform coverage and easy removal after electrode drying, preventing dust and particulates from impacting battery performance. The visual blue tint enhances quality inspection, and consistent release properties support higher automation throughput. Custom widths and anti-static grades meet specific cell sizes and factory handling systems.
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Producers use blue PET film as release carriers during electronic-grade adhesive tape production, including double-sided transfer tapes and component-mounting tapes. The film supports pressure-sensitive adhesive application and UV-curable formulations, paired with slitting and rewinding. Blue color facilitates rapid alignment and visual QC during slitting, minimizing yield losses due to edge trim misalignment or missing release liners.
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The film serves as a detachable process backing in FPC manufacturing, aiding photoresist lamination, etching steps, and surface finishing. Our blue PET grade provides stability at process temperatures to avoid curling or shrinkage and eliminates static build-up, critical for preventing dust-related circuit faults. Precise roll flatness minimizes warpage, supporting tighter copper feature registration tolerances during imaging and etching.
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Blue PET release film plays a key process role in multilayer optical sheet production. During hard coating, anti-glare, or anti-fingerprint layer application, the film acts as a contamination barrier and aids in calendering uniform optical properties. The unique blue tint provides contrast for inspection of debris, pinholes, and coating coverage. Careful selection of release level ensures film peels cleanly post-cure, without residues that could disrupt light transmission or lamination clarity.
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Medical device producers employ blue PET release liners to safeguard sensitive polymer and elastomer components as they move through production, inspection, and packaged sterilization. These liners minimize particle and microbial exposure prior to assembly or patient use. Blue shading allows instant distinction between protected and unprotected parts in controlled environments, aiding both operator safety and batch traceability under GMP conditions.
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Converters for high-performance labelstock and printed overlays depend on blue PET film as a temporary release layer during adhesive coating and die-cutting. Precision release ensures clean separation in automated formats for industrial, automotive, or electronics marking graphics. The blue color allows for camera-based and manual positioning controls during print registration, supporting more efficient startup and less material waste.
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Competitive Blue PET Release Film prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615380400285 or mail to sales2@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615380400285
Email: sales2@liwei-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Working day in, day out on our production floor teaches a lot about the products that leave our factory gates. Among our daily workhorses, Blue PET Release Film stands out. Over the years, talks in the workshop and technical rooms keep circling back to one thing: customers want reliability and clean release, every time. Our Blue PET Release Film is one of the results of these honest conversations between factory hands, engineers, and those out in the field. Far from a generic offering, each roll comes off the line shaped by input from real-life users in tapes, labels, and optical industries.
Polyethylene Terephthalate (PET) starts as a versatile base, but the final roll owes everything to careful choices in resin, precision coating, and blue coloration. The blue tint isn’t just for appearance—operators spot misalignment or surface flaws more quickly in high-speed lamination or die-cutting environments. We use virgin-grade PET, picked for high tensile strength and superior dimensional consistency. Film thicknesses typically fall in the 25 to 75 micron range. Years of hands-on feedback steered us clear of recycled blends for this product, making mechanical properties and transparency uniform right through a 20,000-meter jumbo roll.
Our process involves a proprietary silicone coating, tailored through field testing on different adhesive systems. No corner of the coating tower lies idle; temperature, humidity, and web tension run tight, ensuring cross-web uniformity. Engineers regularly test point-to-point release values, and they don’t settle for surface averages. Customers working with water-based adhesives or high-tack acrylics keep sending us their critical measurements, and our shift teams feed these numbers back into our parameters. The result is not just “good enough”—we chase repeatable, predictable release force, with values stretching from 5g/25mm up to 70g/25mm depending on end use. Glassine and polyolefin films sometimes show wider tolerances or dust issues. We’ve had clients switch after fighting unwanted residue or curling with other materials.
Operators using Blue PET Release Film fill out fewer incident reports for tearing and film breakage. Years ago, one major converter called about multiple stoppages with a competitor’s unclear PET. Their fix was thicker material, but our team worked with them onsite with our film, and breakdowns practically disappeared at their slitters. Packing teams appreciate the film’s resistance to static buildup, easing handling in air-conditioned facilities. Most operators pay more attention to output than technical nuances. They remember the blue—easy to spot, easy to handle—and appreciate the lack of fuss compared to clear liners.
Pressure-sensitive adhesive (PSA) tape plants, both in electronics and automotive adhesive, demand predictable release. Line managers from major OEM suppliers include our Blue PET Film in their approved lists because tape separation remains consistent throughout a jumbo unwind, eliminating sporadic tension spikes. This keeps master rolls printable, die-cuts crisp, and machine downtime minimal. In some electronics lines, clear PET liners proved too invisible for efficient QC checks in dust-controlled environments. More than one technical director told us the blue version reduced their waste by letting operators catch dust, scratches, or defects his clear film wouldn’t spot until lamination.
Label stock converters rely on dimensional stability to prevent liner curling during UV printing or die-cutting. With inconsistent or recycled films, new staff sometimes come in with tape seaming “fixes” which stretch and distort. Our team runs inline shrinkage and MD/CD elongation tests as part of every large-scale order. Practical experience shows that a tighter shrinkage tolerance means fewer complaints in post-lamination converting. Blue PET stands up against wide temperature swings much better than kraft, glassine, or polyolefin substitutes. Customers confirm adhesives release with no splitting or adhesive transfer, which reduces web cleaning and boosts equipment lifetime.
The rigid flatness and transparency of PET film attracted early interest from display panel and sheet goods manufacturers. We’ve made custom batches for LCD panel lines, glass fabricators, and printed electronics firms over the years. The blue color, again, makes defects and contamination visible where clarity might conceal them. Engineers on these lines often need anti-static performance for automated sheet feeding and lamination to avoid both dust attraction and micro-scratching. After field trials, Blue PET usually earns high marks for peel uniformity and the lack of release powder compared to lower-cost glassine or paper liners. We run lab rub tests to simulate handling, ensuring the film won’t pick up dust or contaminate lenses or films.
Waste audits and recyclability challenges dominate boardroom talk across industries. We build all our PET films to maximize reclaim value; there’s no print or heavy pigment load in our blue shade, which simplifies downstream recycling. Certain glassine and polyolefin release liners on the market struggle in closed-loop recycling, either because their heavily modified coatings won’t come clean, or their physical properties limit reuse. One packaging client recently reported a 20% boost in post-consumer recovery from switching to our PET for over-lamination lines. The cleaner recycling stream and reduced density mismatch translated to lower landfill fees on their end.
A lot of the work in producing Blue PET Release Film lies in finding the right balance between film toughness and release stability. Quality teams routinely monitor roll flatness and edge profile on every master roll before cutting. Our operators prefer the ease of blue for visual QC, especially in high-throughput settings where time for inspection is limited. Continuous feedback from major wrap, overlay, and adhesive producers sharpens our process. A few years back, one technical manager called to highlight curl issues with a shipment. Our teams spent days at their site, duplicating their process, and ultimately identified a humidity spike during our coating step. Tightening controls at that point cut downgrades by half, one more reason why Blue PET earns a reputation as the simple fix that saves effort down the line.
Producers working with fast lines or sensitive adhesives see the differences quickly. Glassine paper tears easily and can leave debris in automated taping heads. Polyolefin films fight roll memory and can shrink or curl, causing printing and lamination headaches. Our Blue PET, by contrast, resists shape loss due to both its resin chemistry and coating technology. Compared to clear PET, the obvious color helps line staff reduce scrap caused by unnoticed folds or wrinkles. In field use, blue PET’s dimensional consistency helps reduce settings tweaks with every new roll, which keeps machines running and waste piles down. Technical service teams out in the field keep telling us about the “find and fix” value of the blue—once shop workers could spot defects visually, rework rates dropped and finished yield climbed.
Many of the reliability gains show up in process data logs: fewer unplanned outages, reel end stability, easier core removal, and less static buildup. Lamination shop supervisors point to a reduction in web breaks, fewer splices gone bad, and smoother take-off in both hot and cold seasons. Managers remember the production days before blue PET, with extra shift time spent tracking jams and cleaning stations. Many now require blue release for new product launches, crediting the product for moving uptime figures higher. Their trust comes from experience—each time film runs without issues, confidence grows.
Our regular customers—printer operators, slitters, line managers—know the feeling of a smooth roll. They recognize the low static and predictable unwind. Their comments from year to year, often shared over morning meetings or late shift calls, influence each engineering update we make. When one customer says they want to ramp output without higher waste, our factory teams take note and bring their challenges into our process room. The end result is always clear: Blue PET Release Film moves through presses and slitters with minimal waste, fewer stoppages, and easier downstream handling.
Every year brings new lamination speeds, adhesives, and laminator models. Our process engineers keep pace with those changes, working side by side with high-volume users to tune coating weights and surface profiles. Blue PET’s release layer also continues to evolve. Early iterations of our silicone recipe worked reliably but left room for less transfer in the most aggressive adhesive formats. After repeated field trials, our teams developed an improved curing schedule and tighter coating uniformity, boosting both shelf life and on-press performance. Regular benchmarking against imported and local release films in lab conditions, followed by plant-scale runs, helps us know exactly where our product sits. Time on the line can’t be replicated in a marketing office. Feedroller staff and shift supervisors often call out the simplest improvements—like easier slit edge identification or less edge fray as jumbo rolls approach their tail ends. We use that input to push our product standards.
Tape coaters and advanced material producers favor release films that stay out of the way. They want the liner to perform invisibly, to run reliably shift after shift. Blue PET earns value in hectic, real-world conditions. From low-temperature adhesive applications to high-speed laminating, the lack of film distortion or blocking sets it ahead of less robust or cheaper alternatives. Back on our own shop floor, reviews from long-term repeat customers serve as proof of product value more than any report. Time saved, less rework, and steady quality mean more production uptime and less stress for everyone involved.
Problems occasionally happen—no film solves every challenge. Defects, curling, or unpeeling must be tackled quickly. Our position as manufacturer means direct communication with technical staff and factory operators from thousands of kilometers away. Input on film gauge, release characteristics, or handling helps us improve service and recommend field-proven settings. Requests for custom thickness and release force find their way to our development planners, not a web portal or escaped email chain. Watching our products move from inspection to packaging gives us daily feedback, which shapes every tweak or shift-wide adjustment. The direct manufacturing link saves administrative headaches for customers who value rapid, truthful support and plain resolve.
We know buyers seek value, not buzzwords. Blue PET Release Film stands the test of day-to-day plant realities. Any change in adhesive chemistry, product launch, or winding method brings new requirements. Our teams spend significant hours following end users’ line reports, tuning every batch, and handling bespoke runs for emerging technologies. As more sectors move toward closed-loop and post-industrial recycling, our film’s chemical purity and certified resin sources help keep recovery rates climbing. Sustainable manufacturing is becoming standard, not an afterthought. The nature of Blue PET—strong, pure, easy to sort—fits demands from converters, laminators, and end-of-line processors facing landfill penalties or new legislative targets.
In years of listening to converters, press operators, engineers, and logistics teams, some patterns always emerge. Blue PET Release Film gives clear, visible evidence on the shop floor of alignment, quality, and ease of defect detection. It holds up under real use—they remember the rolls that ran overnight without incident, the batches that went through multiple adhesive changes, and the film that maintained shape after long sea freight journeys. We don’t chase every passing fad, but focus on improvements customers ask for directly. By anchoring our process in user experience and open feedback, Blue PET Release Film stands above alternatives in practical performance, reliability, and peace of mind across every shift.
