1 / 1
Forming Fabric
2.5-Layer Forming Fabric
Model: DLH-3500 · 2.5-Layer (Double Layer + Extra Support)
PAPTEX 2.5-Layer Forming Fabric bridges the gap between double-layer economy and full SSB performance. The innovative "2.5-layer" design adds an extra support weft layer to a double-layer base, significantly improving cross-machine stability and fiber support without the cost premium of a full triple-layer or SSB construction.
400 ~ 650 CFM
Air Permeability
Up to 175°C
Heat Resistance
Suitable Paper Grades
📦Packaging🏗️KraftCorrugated
Best Applications
Engineered for these paper grades and machine conditions
Why Choose PAPTEX
Cost-Effective Upgrade
Better fiber support and drainage than double layer at lower cost than full SSB.
Enhanced Stability
Extra support weft layer improves cross-machine stability and extends service life.
Engineering Overview
PAPTEX 2.5-Layer Forming Fabric bridges the gap between double-layer economy and full SSB performance. The innovative "2.5-layer" design adds an extra support weft layer to a double-layer base, significantly improving cross-machine stability and fiber support without the cost premium of a full triple-layer or SSB construction.
With 400–650 CFM air permeability, ≥70 kN/m MD tensile strength, and heat resistance up to 175°C, this versatile fabric handles packaging, kraft, corrugated, white board, and duplex board grades at medium to high speeds. The extra support weft also extends service life by 20–30% compared to standard double-layer fabrics.
An excellent upgrade path for mills currently running double-layer fabrics who want better formation stability and longer life without the investment of SSB technology.
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 | 2.5-Layer (Double Layer + Extra Support Weft) |
| Material | 100% Polyester Monofilament |
| Air Permeability | 400 ~ 650 CFM |
| Tensile Strength (MD) | ≥ 70 kN/m |
| Heat Resistance | Up to 175°C |
| Seam Type | Pin Seam / Spiral 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~ 650 CFM
Continuous Temp.175°C
Measured per ISO 9237 / ISO 9073 standards. Actual performance may vary with machine conditions.
Next Steps
Ready to Learn More?
Start with a datasheet or go straight to an engineer — no pressure.
📄
Download Datasheet
Full technical specifications, performance data, and installation guidelines.
Free & Instant📦Request Samples
Get a sample piece for evaluation. Standard A4 size, delivered in 5-7 days.
Email Required🔬Request Test Report
Full lab test report: ISO 9237 permeability, ISO 9073 tensile, ISO 12947 abrasion.
Email Required🔄Compare Technical Routes
See how this product compares with alternatives. Side-by-side technical analysis.
Downloads
Technical documentation for 2.5-Layer Forming Fabric
Technical Comparison
Compare Center →Common Technical Route Comparisons
Compare technical routes across all machine sections to find the best solution.
Frequently Asked Questions
Common questions about 2.5-Layer Forming Fabric
A 2.5-layer fabric starts with a standard double-layer base and adds an extra support weft layer between the paper-side and wear-side. This 'half layer' provides additional cross-machine stability and fiber support, hence the '2.5-layer' designation. It offers better formation than double-layer at lower cost than SSB.
Knowledge Center
Knowledge Center →Recommended Reading
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 →
🔲Application Domain
Fabrics
In-depth knowledge about paper machine clothing: weave structures, material science (PET, PA, PPS), surface treatments, and performance characteristics across all fabric types.
3 subtopicsExplore →
Buyer Journey
Your Next Step
You are at stage 4/8: Product Detail
IndustryInquiry
1
2
3
4
5
6
7
8
Interested in 2.5-Layer Forming Fabric?
Send us your paper machine specifications for a customized quotation.
