再生LDPE薄膜颗粒供应商
在Towobo上从经认证的B2B供应商处采购再生LDPE薄膜颗粒——工业后及消费后LDPE，服务非洲、亚洲及全球包装膜、塑料袋及农膜制造商。
没找到需要的产品？
Post-industrial vs post-consumer recycled LDPE pellets
Recycled LDPE pellets are produced from two main input streams, and the distinction matters significantly for quality, consistency, and application suitability. Post-industrial (PI) or pre-consumer rLDPE is derived from manufacturing waste — film trim, off-specification production, packaging waste from industrial users — and is typically cleaner, more consistent, and easier to reprocess into high-quality pellets. PI rLDPE is suitable for demanding film applications including agricultural films, food-adjacent packaging, and construction films. Post-consumer (PC) rLDPE is derived from collected and sorted consumer waste — carrier bags, shrink wrap, and collected film from retail and logistics operations. Quality is more variable, contamination levels higher, and consistent supply is more challenging. Post-consumer rLDPE is suitable for refuse sacks, construction sheeting, and non-food-contact packaging films. The reprocessing quality — washing, filtration melt purity, and pelletising conditions — has as much impact on end-product performance as the input material. Request melt filtration rating and gel count data from the supplier.
Key quality specifications for recycled LDPE film pellets
When evaluating recycled LDPE pellets, request CoA data for: MFI (typically 0.2–5.0 g/10 min at 190°C/2.16kg — confirm for your blown film line); density (LDPE: 0.915–0.935 g/cm³; LLDPE blends will be slightly higher); contamination level (expressed as parts per million of non-polyethylene contamination); moisture content (below 500 ppm for film extrusion — excess moisture causes bubbles and poor film quality); colour and appearance (natural/grey, black, coloured — confirm colour consistency batch to batch); and odour level. Ask the supplier about their washing process (cold wash, hot wash, friction wash), melt filtration pore size (finer filtration = fewer gels in the film), and whether they can provide a film test report showing bubble stability and surface defect levels from a blown film trial. Gel count is a key indicator of pellet quality — high gel count produces visible inclusions in the finished film.
GRS certification and recycled content documentation
For buyers supplying markets where recycled content claims must be verified — particularly EU packaging buyers subject to the EU Packaging and Packaging Waste Regulation (PPWR) recycled content targets — the supplier's Global Recycled Standard (GRS) certification is an important procurement requirement. GRS certification provides third-party verification of recycled content percentage and chain of custody from waste input through pellet production. Request the supplier's current GRS certificate and confirm the scope covers the specific product and input material. For buyers in markets where GRS is not required, a signed material declaration confirming the recycled content percentage and input material type may suffice. Always request documentation before making recycled content claims on finished products.
寻找经过验证的批发供应商？立即浏览列表。
在Towobo上查找再生LDPE颗粒供应商Frequently asked questions
Can recycled LDPE pellets be used in blown film lines designed for virgin LDPE?
Yes, in most cases — but process adjustments are often needed. Recycled LDPE pellets may have slightly different MFI and thermal properties compared to the virgin grade they replace. Start with a trial blend (30–50% recycled, 50–70% virgin) to assess bubble stability, film gauge consistency, and surface quality before increasing recycled content. Ensure the melt filter on the blown film line is rated for the contamination level of the recycled pellets — finer filtration may increase back-pressure and require screw speed adjustment. Request a process guidance note from the pellet supplier.
What contamination level is acceptable in recycled LDPE pellets for film?
Acceptable contamination levels depend on the film application. For agricultural mulch film and industrial stretch wrap, contamination levels below 300 ppm are generally acceptable. For refuse sacks and construction sheeting, up to 500 ppm may be tolerable. For applications requiring a clean, defect-free film surface (retail packaging, printed films), specify pellets with contamination below 150 ppm and a gel count test report confirming low inclusion levels. Higher-quality post-industrial material typically achieves below 100 ppm contamination.
What is the typical price difference between recycled and virgin LDPE pellets?
Recycled LDPE pellets typically trade at a discount to virgin LDPE — the discount varies with oil prices, recycled material availability, and the quality of the recycled grade. Post-industrial high-quality rLDPE may trade at 10–25% below virgin pricing. Post-consumer grades in natural or grey colour may trade at 20–40% below virgin. Black rLDPE (with carbon black) is typically the most cost-competitive and is used where colour is not a constraint. Prices fluctuate with both virgin resin markets and collected waste availability — request current pricing directly from suppliers.
Are recycled LDPE pellets approved for food-contact film?
Direct food-contact applications for post-consumer recycled LDPE require specific EU decontamination process approval under EU Regulation 282/2008 (or equivalent national legislation) and must use an approved recycling process. Most standard recycled LDPE pellets — particularly post-consumer grades — are not approved for direct food contact. Post-industrial rLDPE from clean, food-grade input streams may be suitable for indirect food contact (outer packaging layers) but requires documented food-contact compliance. Confirm with your regulatory advisor before using recycled LDPE in any food-contact film application.
towobo 上的供应商
暂无供应商上架此产品。请在下方告诉我们您的需求，我们会为您寻找合适的供应商。
请求报价
告诉我们您的需求，从多个认证供应商获取报价
为什么请求报价？
- 从多个供应商获取有竞争力的价格
- 根据您的要求获取定制报价
- 直接与认证制造商联系
- 通过我们的匹配服务节省采购时间
经常采购？
免费创建买家账户，收藏供应商、直接联系他们并享受付款保障。