High Speed Ultrasonic Sealing Equipment , Lace Sewing Machine 20 Khz

Parameters

Item	Rotary horn	Flat horn
Frequency	35Khz	20Khz
Power	500W	2000W
Horn Photo
Horn material	Titanium alloy	Steel horn
Advantage	Titanium alloy, more stable Longer using life Welding flatter	economic welding by ultrasonic
Disadvantages	Expensive	material transfer to be flat

An ultrasonic lace sewing machine is a specialized device that uses high-frequency ultrasonic vibrations to bond, cut, and seal fabrics, particularly those containing synthetic fibers. This technology replaces traditional needle-and-thread sewing in certain applications, offering a seamless, clean finish ideal for delicate and decorative materials.

How It Works:

1. Ultrasound Generation:

• The machine uses an ultrasonic transducer to generate high-frequency vibrations (typically 20–40 kHz).

• These vibrations are transferred to a horn (sonotrode), which contacts the fabric.

2. Heat Generation:

• The ultrasonic energy generates localized heat at the point of contact due to molecular friction within the synthetic fibers.

• This heat melts the fibers, bonding or sealing them without the need for adhesives or threads.

3. Lace Patterning:

• A rotary die or roller with a specific design is pressed against the fabric during the process.

• The ultrasonic vibrations seal and cut the fabric along the design, creating intricate lace patterns or decorative edges.

Applications:

• Garment Manufacturing:

• Creating decorative lace patterns for lingerie, bridal wear, or high-end fashion.

• Seamless sewing for delicate fabrics where traditional stitching may damage the material.

• Home Textiles:

• Producing curtains, tablecloths, and decorative trims with intricate lace edges.

• Medical and Technical Fabrics:

• Bonding and sealing nonwoven fabrics for surgical masks, filters, and hygiene products.