Technical Data. Line overview and stage specifications for Wetlaid & CP lines.

Line overview

Capacity, energy, fibers, and compliance for the complete production line.

Technology
Wetlaid forming with optional wood-pulp / CP composite and spunlace bonding
Useful working width
2.400 – 3.600 mm (forming); up to 4.000 mm on wetlaid-spunlace units
Weight range
35 – 120 g/m² (wood-pulp spunlace); 40 – 90 g/m² (flushable)
Production speed
up to 180 m/min (composite); up to 250 m/min (forming / winding window)
Possible fibers
Wood pulp, short-cut viscose / Tencel (2–20 mm), PET, PP, PLA blends
Energy & media sources
Electric drives; process water; natural gas or steam for drying
Safety standards
CE / Machinery Directive integration for EU projects

Figures reflect published Changshu Feilong configuration ranges. Exact capacity, energy use, and stage selection depend on product mix and line layout.

By stage. Machine data for each process section.

Stock preparation

Wet-process stock preparation — pulping, refining, blending, and consistency control of the fiber suspension before forming.

  • Fiber lengthTypically 2 – 20 mm short-cut fibers
  • Raw materialsWood pulp, short-cut man-made fibers, additives
  • Pulping / defiberingHydrapulper and deflaking options
  • Blending & dosingMulti-component stock chests with ratio control
  • ConsistencyClosed-loop dilution and consistency regulation
  • CleaningScreens, cleaners, and reject handling

Wetlaid formation

Inclined-wire wet forming (paper-machine principle) for high-uniformity webs from pulp and short fibers.

  • Forming width2.400 – 3.600 mm
  • Forming typeOblique / inclined mesh wet forming
  • Line speedup to 180 m/min (composite); up to 160 m/min (flushable)
  • Approach systemClosed-loop stock approach and dilution

Wood pulp / CP composite

Optional wood-pulp composite and carded-pulp integration for wipe and hygiene structures.

  • Product typesWood-pulp spunlace, flushable / biodegradable webs
  • Grammage35 – 120 g/m² (wood pulp); 40 – 90 g/m² (flushable)
  • Winding speedup to 250 m/min (wood pulp); 120 – 160 m/min (flushable)
  • LayeringSingle or multi-layer pulp / fiber constructions

Hydroentanglement (optional)

Wetlaid-spunlace bonding heads for pulp composites and flushable materials.

  • Working width2.000 – 4.000 mm
  • Jet pressureup to 250 bar
  • Line speed50 – 350 m/min (unit design window)
  • MaterialsWood pulp, Tencel, PP composite, man-made fibers
  • FiltrationMulti-layer sintered mesh, ~40 μm precision

Drying

Honeycomb double-drum or multi-drum hot-air dryers for spunlace and needled webs.

  • Dryer typesHoneycomb double-drum, multi-drum
  • Working width2.000 – 4.000 mm
  • Line speed100 – 350 m/min
  • Heating mediaNatural gas (direct fire) or steam
  • Heat recoveryIntegrated recovery options

Slitting and winding

Precision cutting and roll build with controlled tension for clean edges and stable geometry.

  • Cut methodsRazor, score, crush-cut
  • Drive typesSurface, center, combination
  • Winding speedMatched to upstream process window

Packaging

Automatic packaging for jumbo and slitted rolls — wrap, band, label, and handle for storage and dispatch.

  • Roll formatsJumbo / mother rolls and slitted daughter rolls
  • ProtectionFilm wrap, banding, labeling integration
  • TraceabilityBatch and roll ID marking
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