How are nonwoven wipes produced step by step

The production of dry nonwoven wipes follows a streamlined industrial process that omits the liquid-dosing stage of wet wipes. The focus is entirely on converting raw fibers into a high-performing, absorbent fabric web and then mechanically cutting and packaging it.

Phase 1: Fabric Manufacturing (Web Formation & Bonding)

Before the material can be converted into individual wipes, raw fibers must be transformed into a continuous, high-strength roll of nonwoven fabric.

1. Fiber Selection and Blending: Raw fibers are selected based on the desired performance of the dry wipe. Common choices include polypropylene and polyester (for oil absorption and industrial strength), viscose and rayon (for high water absorbency), or wood pulp (for eco-friendly, single-use wipes). The raw fiber bales are mechanically opened and thoroughly blended together. 2. Web Formation: The loose, blended fibers are arranged into a continuous sheet or “web” using one of three primary methods:

Carding: Mechanical cylinders comb the fibers into a uniform, multi-layered web.
Air-laid: Air streams blow short fibers (often wood pulp) onto a moving mesh screen to form a thick, absorbent web.
Spunbond/Meltblown: Plastics are melted and extruded through tiny nozzles directly into continuous filaments that form a web on a moving conveyor.

3. Web Bonding: The loose, fragile web must be bonded together to give the dry wipe its tensile strength and lint-free properties.

- Spunlace (Hydroentanglement): High-pressure water jets shoot through the web, forcing the fibers to twist and lock together mechanically without chemicals.
- Thermal Bonding: The web passes through heated rollers that melt a small percentage of synthetic fibers, fusing the web together.
- Chemical Bonding: A liquid latex or resin binder is sprayed or printed onto the web and then cured with heat.

4. Drying and Slitting: If water was used during bonding (spunlace), the fabric passes through heavy-duty drum dryers. The dry fabric is then slit into specific widths and wound up into massive master rolls (or jumbo rolls).

Phase 2: Converting and Packaging

The master rolls of dry fabric are moved to high-speed converting machines to be shaped into the final consumer or industrial product.

1. Unwinding and Slitting: The master roll is loaded onto an automated unwinding stand. Circular blades slit the wide sheet of fabric into narrower strips that match the exact width of the intended wipe.

2. Folding and Perforating: Depending on how the dry wipes will be pulled from their final container, the fabric moves through one of two mechanisms:

For folded stacks: The fabric strips pass over folding boards that shape them into interlocked patterns (like Z-folds or C-folds)
For center-pull rolls: The continuous fabric strip passes through a rotary blade that punches perforation lines at precise intervals, allowing individual sheets to be torn off easily by the end user.

3. Cutting and Stacking (for folded wipes): High-speed rotating knives cut the continuous, folded fabric ribbons into individual sheets. Automated mechanical arms count the cut sheets and compile them into tidy stacks (e.g., stacks of 50 or 100 dry wipes).

4. Packaging and Sealing:

Folded sheets are pushed into plastic polybags or cardboard boxes, which are then heat-sealed or glued shut.
Perforated rolls are tightly wound up, cut into individual roll lengths, and dropped into plastic canisters or bucket dispensers.

5. Quality Control: The finished packages pass through automated check-weighers and optical inspection systems to verify correct sheet counts and package seals. They are then boxed into shipping cartons for distribution.