
Roll presentation for HK509A(FJ)
Photos show product, fabric and converting views from this roll range. Final roll size and core follow the approved order.
Cleanroom Wiper Rolls
HK509A(FJ) Microfiber Cleanroom Wiper Roll
| Product code | HK509A(FJ) |
|---|---|
| Fabric / surface | Microfiber cloth; Straight pattern |
| Fabric weight | 195 g/m² |
| Cloth thickness | 0.38 mm |
| Edge finish | Ultrasonic or heat-cut |
| Custom roll sizes | Width 8–250 mm; length 10–200 m, subject to fabric and machine fit |
| Core interface | 25.2 mm bore shown; core sizes 25–76 mm listed. Confirm bore and core length by drawing. |
| Clean-processing options | Class 10 / 100 / 1000; agree supply protocol |
| Water absorption (listed) | ≥300 — unit and test method require confirmation |
| Packaging | 1 roll/bag; box and carton quantity by order. Range packing: 10 rolls/box, 8 boxes/carton. |
| Documentation | Request current RoHS report for the selected supply |
| Applications | Semiconductor processes; LCD panels |
Clean-processing labels describe supply options, not an ISO class or sterility claim. Confirm the absorption test and the selected roll specification before order.
HK509A(FJ) provides straight-pattern microfiber for semiconductor and LCD cleaning trials. The selected roll should be matched to liquid delivery, guide alignment and the production contact head.
Microfiber for a repeatable panel-cleaning step
HK509A(FJ) is a straight-pattern microfiber roll listed for semiconductor and LCD-panel applications. It suits evaluation where a continuous cloth strip moves across a defined cleaning zone. Keep the full code, including the suffix, on the approved specification so subsequent orders identify the same material.
Control liquid delivery
Wetting the roll heavily is not a substitute for matching the cloth to the residue. Establish where liquid is applied, how it spreads across the strip and how long the wet section remains at the contact point. Uneven dosing may leave one side of a panel wet while the other side receives too little cleaning liquid.
Assess the actual process liquid on a sample, including any effect on the product coating and the cloth edge. The fabric description alone does not establish compatibility with every solvent formulation.
Keep the web flat
Check guide alignment and winding direction with the intended slit width. A loose edge, wrinkle or uneven take-up can change contact as the roll is consumed. Observe the line beyond the first few cycles, when the supply and take-up diameters begin to change.

Define a useful incoming check
Compare each delivery against the accepted sample and order drawing: fabric identification, edge finish, winding presentation, bag integrity and roll dimensions. Add cleanliness or extractables requirements where the process needs them, with the measurement method agreed in advance. This gives procurement and production a shared basis for accepting the roll.
HK509A(FJ) rolls can be customized to the application, including slit width, core geometry and packaging.