Polyester Triple Layers Forming Fabric

 

Polyester Triple Layers Forming Fabric:

Product Introduction:

Product features:

● SSB design, excellent dehydration capacity

● The sticker surface is designed with a 2-shed plain weave structure, with high retention rate, good paper uniformity, light net marks, and easy peeling

● The wear surface adopts 8-shed braided structure and imported monofilament, which has good abrasion resistance and long service life

● Large lateral stiffness, good running stability

● Compact structure, less water content inside, it is not easy to cause the paper page to wet and break

● The sticker surface and the wear surface are separate warp threads, so it is not easy to break the network in the later perio

Product Specification: SSB forming fabrics

THREAD DIAMETER OF WARP: 0.13mm

THREAD DIAMETER OF WEFT: 0.13/0.13mm/0.25mm(PET),0.25(PA66)

DENSITY OF WARP: 60 pieces/cm

DENSITY OF WEFT: 65 pieces/cm

STRENGTH OF MESH SURFACE:≥1000N/cm

STRENGTH OF CONNECTING: ≥600N/cm

AIR PERMEATION: 440CFM

THICKNESS: 0.83mm

ELONGATION AT RATED TENSILE STRENGTH AT TENSILE STRENGTH OF 50N/cm, ELONGATION RATE ＜ 0.40%

Product Advantage:

our SSB triple layers forming fabric is good using for CRESCENT type (YANKE) tissue paper machine . the machine speed can reach 1200m/min .

Product Detailes:

Triple Layers Forming Fabric Forming Fabrics Weave Machine

Heat Setting Machine: Raw Material

Seam Joint Workshop  Warehouse

Payment: T/T

Delivery time: about 15-25 days

Shipment: by sea, by air, by TNT express

plese tell us your detailes contact information, we can supply you samples ,we also can send you our factory video

 

Is your paper machine's top forming wries suffering from frequent wear? start by examing these four reasons

1.Mechanical friction(guide rollers,scrapers, vacuum panels)

2.Hydraulic impact(improper use of high-pressure water)

3.Chemical corrosion(abnormal pupl PH)

4.hard things scrap(pulp lumps,grit,metal shavings)

but also you need to know, what the wear looks like

1.wears on both sides of the forming wires:

Severe wear occurs along the edges on both sides, within a range of 15–30 cm from the margin; this sometimes appears as a continuous loop or in a discontinuous pattern.

Possible reason: Guide rolls are non-parallel or poorly leveled, causing the wires to mistrack and rub against the machine frame or flanges; edge guide plates are improperly adjusted or worn, causing direct scraping of the mesh edge; vacuum suction box edge seals have worn grooves into the mesh; mesh-edge trimming doctor blades are not fully closed at the ends; pulp accumulates at the ends, forming hard clumps that abrade the mesh edge. Recommended troubleshooting steps: First, check the parallelism of the guide rolls and the condition of the edge guide plates; then, inspect the ends of the blades for pulp accumulation.

2. wear pattern in the central area:

wear in the middle section of the forming fabrics surface is signficantly more sever than on the sides, covering a large, continuous area.

Possible reason: Excessive pressure in the center of the high-pressure spray pipe (due to uneven nozzle clogging or incorrect nozzle type); a groove worn into the center of the vacuum suction box cover (increasing friction); uneven cross-machine direction (CD) stock distribution from the headbox (resulting in an overly thick stock layer in the center and a heavy dewatering load); excessive crown on the center-high roll (causing concentrated contact pressure in the center); or a notch in the center of the blade (leading to stock accumulation and the formation of hard lumps). Recommended checks: Inspect the high-pressure water pressure profile and check the cross-machine flatness of the vacuum cover using a straightedge or specialized tool.

3.Characteristics of longitudinal strip-like wear: multiple parallel, slender scratches or wear bands spaced at regular intervals, going in the direction of the fabric's travel.

Possible reason: Wear on the vacuum suction box cover (most common)-longitudinal grooves caused by hard objects acting like a  blade against the forming fabrics; longitudinl scratches or burrs on the surfaces of guide rollers contacting the wires underside; nicks in the blade edge-leading to pulp accumulation or direct scraping at the corresponding location; or adhesive deposits or hardened pulp clumps adhering to the cover. Troubleshooting tip: After shutting down the machine, run your hand over the underside of the forming wires; grooves will be clearly palpable. Focus the inspection on the vacuum box cover and the surfaces of all guide rollers.

4.Characteristics of localized pitting wear: isolated small circular or elliptical dots or irregular small holes, distributed discontinuously.

Possible reason: Hard clumps of pulp on the guide roll (due to the doctor blade not sealing tightly) → causing abrasion at the same spot on the wire with every rotation; a hard protrusion beneath the wire (e.g., a screw head, welding slag, or a detached ceramic piece); a damaged or misaligned high-pressure water nozzle → the water jet piercing the wire strands; or hard particles in the pulp (e.g., sand or adhesive clumps) becoming trapped between the wire and the roll surface. Troubleshooting tip: Mark the wear point on the forming wires, run the machine slowly for one full rotation, and observe whether the mark aligns with the same angular position on the same roll.

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