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Forming Fabric

1.5 Layer Forming Fabric

Name: 1.5 Layer Forming Fabric
Brand: HengXing Corp

1.5-layer forming fabric adds extra surface weft yarns to a single-layer base, delivering measurable improvements in fiber support and sheet quality at minimal cost premium. Ideal for lower-speed packaging, kraft paper, and recycled board production up to 1,200 m/min.

Layer Structure

1.5-Layer (Extra Weft Support)

Material

100% PET (Polyester) Monofilament

Mesh Count (Warp)

40–50 threads/cm

Mesh Count (Weft)

32–45 threads/cm

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Technical Specifications

Detailed technical parameters for this product.

Technical Specifications — 1.5 Layer Forming Fabric
Parameter	Specification
Layer Structure	1.5-Layer (Extra Weft Support)
Material	100% PET (Polyester) Monofilament
Mesh Count (Warp)	40–50 threads/cm
Mesh Count (Weft)	32–45 threads/cm
Tensile Strength	≥ 400 N/cm
Elongation at 50 N/cm	≤ 1.0%
Air Permeability	550–750 L/m²·s
Fiber Support Index	≥ 130
Maximum Machine Speed	1,500 m/min
Width Range	Up to 12.5 meters

Features & Benefits

Key characteristics that make this product the right choice for your paper machine.

Cost-Effective Upgrade from Single Layer

1.5-layer construction delivers significantly better sheet quality and 30–50% longer life than single-layer fabrics at a modest price premium — the ideal upgrade path for improving paper quality without major cost increase.

Enhanced Drainage Control

Additional weft support system provides controlled drainage with fiber retention rates of 80–88%, improving sheet formation quality and reducing fiber loss compared to single-layer alternatives.

Flexible Application Range

Adaptable design suitable for a broad range of paper grades including packaging, corrugating medium, and cultural paper — providing a versatile solution for multi-grade paper machines.

Improved Wear Resistance

Extra weft yarns on the running side provide approximately 40% better abrasion resistance than single-layer fabrics, extending service life particularly on machines with ceramic dewatering elements.

Quick Break-In Period

Pre-conditioned surface treatment minimizes machine break-in time to 1–3 hours, allowing faster achievement of target sheet quality and reduced startup waste on paper grade changes.

Applications

Industries and paper grades where this product is commonly used.

Corrugating medium and test liner productionPackaging paper and containerboard manufacturingKraft paper and sack paper gradesStandard cultural paper productionMulti-grade paper machines requiring flexible fabric solutions

Frequently Asked Questions

Common questions about this product — answered by our technical experts.

Is 1.5-layer a good upgrade from single-layer fabric?

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Yes, upgrading from single-layer to 1.5-layer typically improves sheet quality by 25–35%, extends fabric life by 30–50%, and reduces fiber loss in white water by 10–15%. The modest price premium is typically recovered within the first 2–3 fabric runs through improved quality and reduced downtime.

What paper grades is 1.5-layer best suited for?

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1.5-layer fabric performs best on packaging grades (corrugating medium, test liner, kraft), standard cultural paper, and multi-grade machines producing a mix of paper types. It provides an excellent balance of quality, durability, and cost for machines operating below 1,200 m/min.

How does 1.5-layer compare to single-layer in service life?

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1.5-layer fabrics typically last 30–50% longer than single-layer under the same operating conditions. Typical service life is 35–50 days on packaging machines versus 25–35 days for single-layer. The additional weft yarns provide significantly better wear resistance against ceramic foils and vacuum boxes.

Can I use 1.5-layer on an older paper machine?

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Absolutely. 1.5-layer fabrics are excellent for older or lower-speed machines (300–800 m/min) where the cost of SSB or 2.5-layer may not be justified. They provide a meaningful quality improvement over single-layer without requiring any machine modifications.

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