Ultrasonic Film and Fabric Welding


Ultrasonic welding of plastic film

Ultrasonic welding of plastic film.


Ultrasonic cutter for acrylics, PVC, screen and polyester

Ultrasonic cutter for acrylics, PVC, screen and polyester.


Ultrasonic slitter for ultrasonic slitting & edge sealing and selvedge cutter

Ultrasonic slitter for ultrasonic slitting & edge sealing and selvedge cutter

Viale de Gasperi, 76
20017 RHO (MI) Italia


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Ultrasonic film and fabric welding is widespread in the apparel, nonwoven, packaging and textile industries. This type of soldering may be applied with 100% synthetic fabrics or blends composed with up to 40% non thermoplastic fibers.

The film and fabric materials that can be processed are polyester, polyethylene, polypropylene, rigid thermoplastics, polyurethane, a few vinyl varieties and films coated with thermoplastics.

Do you wish to get a free consultancy from our experienced staff? Fill out the form above.

Film and fabric welding approaches 

There are three possible modes to perform film and fabric weaving using ultrasounds: Seam, Plunge and Traversing.

  • In seam mode, film and cloth materials are put between a stationary or rotary sonotrode and a patterned contrast rolling anvil. It is mostly used for making long incisions and seals in the for manufacturing of clothing and textiles. Lace making machines are a good example of this.
  • In plunge mode, materials are placed in contact with the ultrasonic horn (often featuring a sharp edge and one for sealing) being put under pressure to cut a specific shape and seal it along its edge (used in blister film packaging, tubes sealing, filter pads etc).
  • In traversing mode, the ultrasonic horn traverses the soldering area while materials remain stationary. By using the appropriate tools, both film and fabric can be bonded together or slit apart.

Ultrasonic bonding requires no adhesive tapes nor glues of any kind, plus it is energy efficient compared to traditional methods.

Visit our YouTube channel to see Sonic Italia’s multiple applications.

Learn more about film and fabric welding

Do not hesitate in contacting us if you have further questions regarding our film and fabric welding technologies. We will gladly clear any doubt you may have. You can always browse our website as well, featuring our products and research range.

Fill out the form above and get a free consultancy by our team of professionals.

Nonwovens ultrasonic welding
Solutions for non-woven fabrics. Materials can be 100% acrylics or blends.

Plastic assembly systems
Plastics assembly is used when  high aesthetic quality and high production speed are required.

Ultrasonic bonding
Customized bonding solutions for synthetic fabrics and non-wovens.

Ultrasonic cutting
Sonic Italia manufactures the latest machinery for ultrasonic cutting of thermoplastic materials.

Ultrasonic food cutting
High frequency blades suitable for clean, precise food portioning.

Hermetic sealing
Friction generates localized heat due to the molecular movement of two plastic film pieces at the vibrating sonotrode’s contact area.

Ultrasonic sewing machine
This process is versatile – allowing users to seam, cut, slit, trim, tack, emboss and seal simultaneously.

Ultrasonic slicer
Slicing systems integrated in semi or fully automated slicers.

Ultrasonic slitting line
Slitting is the most efficient solution for a clean cut which prevents unraveling.

Ultrasonic tools
Tools for customised cutting and welding solutions.

Ultrasonic welding 
Discover more about energy directors development.

Hand-held Ultrasonic Welder 
Manual ultrasonic cutting and binding handgrip for better maneuverability.

Manure Belt Welder 
Discover more about our manual ultrasonic welder designed for manure and egg conveyor belts.

Cutting sealing films fabrics
Applications for the non-woven, packaging and textile industries.

Ultrasonic Insertion
Ultrasonic insertion of a threaded brass rivet in a plastic component.

Ultrasonic blades 
Sonic Italia’s technical department develops blades of all shapes and designs.

Linear Circular Weaving Cutter
Suited for manufacturing rafia items.

Solutions for plastic, acrylics and filtration fabrics.

Ultrasonic Rotative Bonding System For Pleated Filters 
An eco-friendly rotary bonding system designed for pleated filters that doesn’t require any solvents or adhesives.

Ultrasonic Sonotrode
Sontorodes: thirty years’ experience in manufacturing customized horns.

Ultrasonic Spot Welding
Spot welding for components assembly.

Ultrasonic Stud Welding
Chosen when similar plastic parts need to be welded at single or multiple localised points.



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