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Dryer Fabric
Spiral Dryer Fabric
Model: SD-3500 · Spiral Dryer Fabric
PAPTEX Spiral Dryer Fabric is engineered for the most demanding dryer section positions — high-temperature, high-tension applications where conventional flat yarn fabrics fall short. The spiral yarn construction delivers ≥70 kN/m MD tensile strength, the highest in our dryer fabric portfolio, combined with an open weave structure providing 400–1,000 CFM air permeability for maximum moisture evacuation.
400 ~ 1,000 CFM
Air Permeability
Up to 180°C
Heat Resistance
Suitable Paper Grades
🏗️Kraft📰CorrugatedBoard
Best Applications
Engineered for these paper grades and machine conditions
Why Choose PAPTEX
Maximum Tensile Strength
Spiral yarn construction delivers ≥70 kN/m MD tensile strength for high-tension dryer sections.
High Air Flow
Open weave structure maximizes air circulation and moisture removal.
Engineering Overview
PAPTEX Spiral Dryer Fabric is engineered for the most demanding dryer section positions — high-temperature, high-tension applications where conventional flat yarn fabrics fall short. The spiral yarn construction delivers ≥70 kN/m MD tensile strength, the highest in our dryer fabric portfolio, combined with an open weave structure providing 400–1,000 CFM air permeability for maximum moisture evacuation.
Constructed with hydrolysis-resistant PET spiral yarns (with optional stainless steel reinforcement), this fabric maintains dimensional stability at continuous operating temperatures up to 180°C. The spiral structure also provides natural flexibility that resists edge curl and tracking issues common in high-tension positions.
A Thailand customer documented 167% longer service life (8 months vs. 3 months) with deformation reduced from 15% to just 3% after switching to PAPTEX spiral dryer fabric in their kraft machine's hottest dryer group.
Verified Evidence
Evidence-Based Quality
Every claim backed by test reports, certifications, and factory data.
Test Report
EV-TEST-002Quantified + Conditioned (L4)
Tensile Strength Testing — ISO 9073-3
Per ISO 9073-3 standard N/cm · MD and CMD, 23°C ± 2°C, 50% ± 5% RH
Source: In-house universal testing machineEV-TEST-003Quantified + Conditioned (L4)
Hydrolysis Resistance Testing
Retained ≥85% tensile after 150 days % retention · at 120-160°C saturated steam
Source: Accelerated aging test, internal lab protocol PTL-027EV-TEST-004
Abrasion Resistance Testing — ISO 12947
Technical Specifications
| Structure Type | Spiral Dryer Fabric |
| Material | Polyester Spiral Yarns / Hydrolysis-Resistant PET |
| Air Permeability | 400 ~ 1,000 CFM |
| Tensile Strength (MD) | ≥ 70 kN/m |
| Heat Resistance | Up to 180°C |
| Seam Type | Spiral Seam / Pin Seam |
Need a custom specification?
Our engineers can tailor the fabric to your machine parameters.
Performance Metrics
Key performance indicators measured under standard laboratory conditions.
Air Permeability400~ 1,000 CFM
Continuous Temp.180°C
Measured per ISO 9237 / ISO 9073 standards. Actual performance may vary with machine conditions.
Next Steps
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Full technical specifications, performance data, and installation guidelines.
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Get a sample piece for evaluation. Standard A4 size, delivered in 5-7 days.
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Full lab test report: ISO 9237 permeability, ISO 9073 tensile, ISO 12947 abrasion.
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Downloads
Technical documentation for Spiral Dryer Fabric
Technical Comparison
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Frequently Asked Questions
Common questions about Spiral Dryer Fabric
Choose Spiral fabric when: (1) your dryer section tension exceeds 60 kN/m, (2) operating temperatures exceed 160°C, (3) you need maximum air circulation, or (4) you're experiencing edge curl or tracking issues with flat yarn fabrics.
Knowledge Center
Knowledge Center →Recommended Reading
Technical articles, guides, and resources for your application.
🔥Machine Section
Dryer Section
Mastering the dryer section: heat transfer efficiency, steam consumption, dryer fabric (screen) selection, air permeability optimization, and fabric tracking solutions.
4 subtopicsExplore →
⚡Application Domain
Energy Saving
Energy efficiency strategies for paper machines: steam reduction, vacuum optimization, drive energy savings, and how PMC design contributes to overall energy performance.
3 subtopicsExplore →
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