Suzhou Gongsheng Import & Export Co., Ltd. is one of the most reliable manufacturers and suppliers of recycled polyester filament yarn in China, featured by quality products and low price. If you're going to wholesale advanced recycled polyester filament yarn made in China, welcome to get pricelist and free sample from our factory. We also accept customized orders.
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Recycled polyester filament yarn turns post-consumer PET bottles into continuous multifilament that performs like virgin polyester at the loom. Bottles are collected, sorted, washed, flaked and re-polymerized or mechanically melted, then spun through standard PET spinning lines into POY, FDY and DTY structures. The chemistry is identical to virgin PET - same polymer, same melting point, same dye chemistry - so fabric engineers can substitute rpet filament yarn into existing constructions without redesigning loom settings or finishing recipes.
Certification and traceability are important when buyers need a verifiable recycled-content claim. Where the product is within the applicable GRS scope, documentation can include input records, verified recycled content and a transaction certificate (TC) for the shipment. The exact claim should follow the certificate scope and supporting documents.
Features & Material
Recycled polyester can achieve performance suitable for many apparel and home-textile applications when feedstock quality, intrinsic viscosity and spinning conditions are controlled. Our specified FDY grades are offered within the stated strength range subject to grade and test method. Dope-dyed black grades can reduce or eliminate piece-dyeing for the applicable construction, which may reduce dyeing-related water and energy use.
Traceability and segregation controls are important for recycled-yarn programs. Where applicable, GRS documentation links the shipment to the certified recycled-input chain. For rpet yarn programs, dope-dyed DTY can be considered for knitwear where re-dyeing is not required, while semi-dull FDY can be considered for woven fabrics intended for piece dyeing. Applications include sportswear, outerwear, padding, home textiles, footwear uppers and bags.
Specifications
|
Parameter |
Specification |
|
Material |
Recycled PET (post-consumer bottle flake) |
|
Certification |
GRS (Global Recycled Standard) · TC per shipment |
|
Recycled Content |
100% (bottle-grade rPET) |
|
Type |
POY / FDY / DTY · dope-dyed or raw white |
|
Linear Density |
50D / 75D / 100D / 150D / 300D |
|
Filament Count |
36F / 48F / 72F / 96F / 144F |
|
Tenacity |
4.0–4.8 cN/dtex (FDY) · 3.5–4.2 cN/dtex (DTY) |
|
Elongation |
FDY 24–34% · DTY 18–28% |
|
Luster |
Raw white semi-dull · Dope-dyed black & colors |
|
Dye Class |
Disperse dyes (raw white) · dope-dyed needs none |
|
Impurity Control |
Optical sort + metal detection flake line |
|
Application |
Sportswear / Outerwear / Padding / Home textile / Bags |
Process Flow
Post-Consumer Bottle Collection → Sorting (Optical + Metal Detection) → Washing & Label Removal → Flaking → Flake Quality Control → Melting / Re-polymerization → Melt Spinning → Drawing (FDY) → False-Twist Texturing (DTY) → GRS Grading & Packing with TC
Services
✓ GRS transaction certificate (TC) issuance for every shipment.
✓ Dope-dyed color library - black series with batch-stable shade.
✓ Recycled content documentation package for brand audit preparation.
✓ Sample cheeses with tenacity, elongation and impurity reports.
✓ Fabric conversion consulting from virgin polyester to rpet filament yarn.
FAQ
Q1. Is rpet yarn weaker than virgin polyester yarn?
A: Recycled polyester can achieve strength suitable for apparel when feedstock quality and spinning conditions are well controlled. Our specified FDY grades are in the 4.0–4.8 cN/dtex range under the stated test conditions, but performance should be confirmed by grade-specific test reports rather than assumed to be identical to virgin PET.
Q2. What does grs rpet mean on an invoice?
A: "GRS rPET" indicates that the relevant product and transaction fall within the applicable GRS certification and documentation scope. A transaction certificate (TC), where required, provides traceability for the shipment. The exact claim should match the certificate and scope documents.
Q3. Why choose dope-dyed recycled polyester yarn?
A: Color is incorporated at the polymer stage, so applicable dope-dyed constructions can avoid piece dyeing. This can reduce dyeing water and effluent and may improve shade consistency for selected dark shades. Actual savings depend on fabric construction and finishing route.
Q4. Can I get GRS certification through my own fabric mill?
A: Your mill generally needs its own applicable GRS scope certification to make a GRS claim at the fabric level, using supplier documentation such as the TC as part of its input records. We can provide the relevant document chain; audit timing depends on the mill and certification body.
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