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Forming Fabric
PAPTEX SSB4500 Triple Layer SSB Forming Fabric (High Fiber Retention)
Model: PT-SSB4500 · 2/5 Satin SSB (Surface-Support-Binder) triple-layer structure. Paper side: 2-satin plain weave at 61.0-63.0 yarns/cm for maximum fiber retention. Wear side: 5-satin weave. Integrated SSB binder system joins the layers without exposure on the sheet side.
PT-SSB4500 is a high-retention 2/5-satin SSB triple-layer forming fabric for fine, printing and specialty paper. Its dense paper-side structure delivers an FSI of 170 while the moderate permeability promotes controlled initial drainage and uniform formation.
4,200–4,800 m³/m²h (265–303 CFM)
Air Permeability
Best Applications
Engineered for these paper grades and machine conditions
Why Choose PAPTEX
High fibre retention
An FSI of 170 helps reduce fibre and fines loss in fine-paper and specialty-paper production.
Controlled formation
Moderate permeability supports gentle initial drainage before the high-vacuum zone.
Mark-free sheet side
The integrated SSB binder remains below the paper-side surface for cleaner formation.
Stable service life
Engineering Overview
Engineering overview
PT-SSB4500 is a high-retention 2/5-satin SSB triple-layer forming fabric for fine, printing and specialty paper. Its dense paper-side structure delivers an FSI of 170 while the moderate permeability promotes controlled initial drainage and uniform formation.
Construction
A fine 0.15 mm plain-weave paper side maximizes fibre support. The 5-satin wear side uses 0.30 mm PET/PA weft yarns for balanced abrasion resistance, and the integrated SSB binder eliminates exposed stitching points on the sheet side.
Operating window
Designed primarily for Fourdrinier and Crescent-former applications from 500–1,500 m/min. Target air permeability is 4,200–4,800 m³/m²h at 100 Pa, balancing fibre retention with reliable drainage.
Application support
PAPTEX can tailor the permeability, mesh density, dimensions, seam and edge treatment to the machine drawing and retention target.
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
| Design | 2/5-satin SSB triple-layer |
| Air permeability | 4,200–4,800 m³/m²h (265–303 CFM) |
| Thickness | 0.95 mm |
| Fibre Support Index | 170 |
| Paper-side yarn | 0.15 mm PET/PA |
| Wear-side yarn | 0.20 mm PET warp; 0.30 mm PET/PA weft |
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 Permeability4,200–4,800 m³/m²h (265–303 CFM)
Caliper0.95mm
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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Full lab test report: ISO 9237 permeability, ISO 9073 tensile, ISO 12947 abrasion.
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Technical documentation for PAPTEX SSB4500 Triple Layer SSB Forming Fabric (High Fiber Retention)
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Frequently Asked Questions
Common questions about PAPTEX SSB4500 Triple Layer SSB Forming Fabric (High Fiber Retention)
Choose it when fibre retention and surface uniformity are higher priorities than maximum drainage capacity, typically on fine, printing and specialty-paper machines.
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Technical articles, guides, and resources for your application.
🌊Machine Section
Forming Section
Comprehensive guide to paper machine forming section: fabric selection, drainage optimization, sheet formation, and fiber retention. For Fourdrinier, twin-wire, and hybrid formers.
5 subtopicsExplore →
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