Products
50D TPU Hot Melt Monofilament
• 100% thermoplastic polyurethane
• Single continuous filament structure
• Nominal melting range: 80–100°C
• Standard white yarn supply
• Higher yarn mass than 20D and 30D
• Half the yarn mass of 100D
• For footwear and hosiery trials
• For webbing and lace processing
• Samples before bulk production
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Product Introduction
Mid-Range TPU Monofilament Grade
50D TPU Hot Melt Monofilament
50D TPU hot melt monofilament is a single continuous thermoplastic polyurethane filament with a listed nominal melting range of 80–100°C. It is supplied for controlled trials in textile constructions such as knitted uppers, hosiery, webbing and laces.
Material100% TPU
StructureMonofilament
Linear Density50D
Listed Range80–100°C
50D Supply Specification
Match the physical sample and purchase record to the same material, filament structure, denier, melting range, color and package.
| Product | 50D TPU hot melt monofilament |
|---|---|
| Material | 100% thermoplastic polyurethane |
| Filament form | Single continuous filament |
| Nominal linear density | 50D |
| Nominal melting range | 80–100°C |
| Standard listed color | White |
| Other listed colors | Black or custom color, subject to confirmation |
| Listed size family | 20D, 30D, 50D, 75D, 100D and 150D |
| Package | Standard cone; confirm cone dimensions and net weight |
What 50D Means
50 g Nominal mass per 9,000 meters of yarn.Denier states linear density. It does not by itself define filament diameter, tensile strength or the finished bond.
Place 50D Between Adjacent Sizes
Compare adjacent deniers under the same machine, textile construction and thermal conditions. The figures below describe nominal yarn mass at equal length.
30DLower mass
40% less nominal mass than 50D.
50DCurrent grade
Use as the controlled mid-range trial specification.
75DNext listed size
50% more nominal mass than 50D.
100DHigher mass
Twice the nominal mass of 50D.
Yarn Appearance and Supply Formats
Use the approved physical sample to confirm color, surface appearance, winding and cone compatibility.
Color and Cone Review
White is the standard listed color. Black and custom colors require order confirmation. Record cone dimensions, net weight and unwinding direction before production loading.
White cone presentation
Package shape comparisonBuild the Processing Window by Trial
The listed 80–100°C value is a nominal melting range, not a universal machine setting. Equipment temperature, dwell time and pressure depend on the actual textile structure.
Define Placement
Record where the 50D filament sits in the knit, weave or assembled layer.
Load the Package
Check cone fit, guide path, tension and unwinding behavior at production speed.
Run a Thermal Matrix
Test controlled combinations of equipment temperature, dwell time and pressure.
Inspect After Cooling
Evaluate appearance, dimensions and the buyer-defined finished-product requirement.
Application Trial Routes
Approve 50D only after testing it in the intended construction, with the actual companion fibers and finishing sequence.
Knitted Shoe Uppers
Define the yarn zone, knit construction and post-knit thermal step.
Hosiery and Socks
Check yarn feeding, stitch appearance and dimensional result after processing.
Webbing
Test 50D with the actual narrow-fabric weave, tension and heat route.
Chenille and Laces
Confirm package unwinding, yarn integration and the specified finished effect.
Carpets and Cushions
Evaluate the filament in the defined textile layer and finishing conditions.
Automotive Textiles
Submit construction and test requirements before material approval.
Sample and Bulk Approval
Incoming Checks
- Match the approved product and batch reference.
- Confirm TPU, monofilament structure and 50D.
- Review color, winding and package condition.
- Retain a physical reference from the accepted sample.
Production Checks
- Repeat the approved machine and feed settings.
- Record equipment temperature, time and pressure.
- Use the agreed cooling and test conditions.
- Compare results with the retained reference.
Related TPU Yarn Pages
Use one specification per trial and record any denier change before bulk approval.
50D TPU Hot Melt Monofilament FAQ
What does 50D specify?+
50D is nominal linear density: 50 grams per 9,000 meters. It does not directly state filament diameter or tensile strength.
How does 50D compare with 30D?+
At equal length, 50D has about 66.7% more nominal yarn mass than 30D. Compare both under identical textile and processing conditions.
Is 80–100°C the required machine temperature?+
No. It is the listed nominal melting range. Establish equipment temperature, dwell time and pressure through trials with the actual textile.
Which colors and packages are listed?+
White is the standard listed color. Black, custom colors and custom packaging are subject to sample and order confirmation.
What should be included with a sample request?+
Send the textile construction, yarn placement, machine, thermal process, target result, color, package, quantity and destination country.
Trial 50D TPU Monofilament in Your Construction
Provide the application, textile structure, equipment, thermal conditions, quantity, package and destination.
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