How does the Four-side sealing single piece wet wipes machine work?

In today’s fast-paced world, wet wipes have become a daily necessity, especially in healthcare, personal hygiene, and hospitality industries. With the rising demand for convenient, single-use hygiene products, four-side sealing single piece wet wipes machines have gained widespread attention. These machines are designed to manufacture individually packed wet wipes with high precision, hygiene, and efficiency.

What Is a Four-Side Sealing Single Piece Wet Wipes Machine?

A four-side sealing single piece wet wipes machine is an automatic production line designed to manufacture individual wet wipes by:

1. Folding the non-woven fabric

2. Wetting it with liquid solution

3. Cutting into single pieces

4. Sealing it inside a four-side pouch

This machine is widely used for producing disinfectant wipes, alcohol wipes, makeup remover wipes, and other single-use hygienic products. It ensures complete sealing on all four sides, protecting the contents from contamination and evaporation.

Key Features and Advantages

Before diving into the working process, it’s helpful to understand why manufacturers choose this machine:

• High-speed production: Capable of producing 80–200 pieces per minute, depending on the model

• Precision packaging: Accurate liquid dosing and tight sealing ensure product quality

• Versatile: Suitable for a wide range of non-woven materials and liquids

• Compact design: Space-saving and easy to integrate into production lines

• Hygienic operation: Fully enclosed design minimizes human contact

  
  

four-side sealing single piece wet wipes machine

How Does the Four-Side Sealing single piece Wet Wipes Machine Work?

1. Non-Woven Fabric Unwinding

The process starts by feeding a roll of non-woven fabric into the machine. The fabric roll is mounted on an unwinding unit equipped with tension control and auto-correction sensors to ensure smooth feeding without wrinkles or deviation.

2. Folding the Fabric

The flat fabric enters the folding station, where it is folded into the desired configuration—commonly Z-fold or double-fold—depending on the final wipe size and thickness. Precision folding is crucial for uniform packaging.

3. Liquid Dosing / Wetting

Once folded, the wipes pass through the liquid application system. This unit sprays or dispenses a pre-set amount of liquid (such as alcohol, disinfectant, or skincare solution) onto the wipes. Advanced machines use peristaltic pumps or gear pumps to control dosage accurately.

4. Cutting Into Single Pieces

After wetting, the fabric is cut into individual pieces using a high-speed rotary cutting blade or guillotine cutter. The cutting unit ensures consistent wipe size, usually ranging from 50x50mm to 200x200mm.

5. Film Feeding and Forming

Meanwhile, the packaging material (usually PET/PE laminated film or aluminum foil film) is fed into the machine. It is positioned beneath the wet wipe using an automatic film unwinder.

The film is formed into a pouch using a molding mechanism that shapes it according to the designated packaging size.

6. Inserting the Wipe

The cut wet wipe is automatically placed into the formed pouch at the insertion station using a servo-controlled pick-and-place unit. This action is fast, synchronized, and ensures precise positioning.

7. Four-Side Sealing

This is the most crucial stage. The machine uses heat-sealing jaws to apply pressure and temperature on all four sides of the pouch. This process:

• Completely seals the wet wipe inside

• Prevents leakage and contamination

• Extends shelf life

The sealing temperature and time can be adjusted based on the film material and liquid content.

8. Batch Coding

Many machines include an inkjet or thermal transfer printer to print batch numbers, manufacturing dates, or expiration dates directly on the sachet.

9. Finished Product Discharge

Finally, the fully sealed single-piece wet wipe is ejected from the machine and collected on a conveyor belt or tray. Some models include an automatic counting and stacking system for easier packing.

The four-side sealing single piece wet wipes machine is a smart, automated solution that combines precision engineering, hygiene control, and packaging efficiency. By understanding how it works—from fabric unwinding to final pouch sealing—you can better evaluate its capabilities for your production needs.

Whether you manufacture disinfectant wipes, cosmetic wipes, or alcohol pads, investing in a four-side sealing wet wipes machine can greatly improve your product quality, brand reputation, and operational speed.