Features of Napkin Paper

Production process of napkins
1. Raw material processing
Pulping: The wood pulp board is broken up by a hydraulic pulper, and impurities (sand, metal fragments) are removed by high-frequency vibration screening.

Pulping: Adjust the fiber length and fineness. Bamboo pulp needs additional desugaring treatment to prevent deterioration.

2. Papermaking
Papermaking: The pulp is evenly spread on the mesh curtain, and the wet paper sheet is formed by the pressing roller. The gram weight is controlled (usually 18-25g/m²).

Drying: Drying with a high-temperature drying cylinder (100-130℃) to ensure that the moisture content is ≤8%.

Embossed/printed:

Embossed: The steel roller presses the three-dimensional pattern to improve the water absorption and aesthetics (such as diamond grid, wave pattern).

Printing: Gravure printing or flexographic printing, the ink must pass the migration test (to avoid falling off after contact with food).

3. Post-processing
Slitting and folding: The fully automatic slitting machine cuts into square or rectangular shapes, and the folding machine completes multi-layer stacking.

Sterilized packaging:

Ultraviolet or ethylene oxide sterilization to ensure that the total number of bacteria is ≤200 CFU/g.

Packaging is completed in a dust-free workshop, and the aluminum foil film is sealed to prevent moisture (preservatives need to be added to wet wipes).