Ultrasonic BondingFor Clean, Efficient,Permanent Bonding ofMultiple Layers

Ultrasonic bonding fuses multiple layers ofsimilar or dissimilar materials by focusingmechanical vibratory energy on the area to bebonded. An ultrasonic horn and anvil causemechanical stress within the materials, releasingthermal energy, softening the points of limitedcontact, and bonding thelayers. Polyester, nylon,polypropylene, polyethylene,PVC, urethane, saran, EVA, andsurlyn can all be bonded andlaminated ultrasonically.Some natural fabrics such ascotton and paper can alsobe laminated with theinterlaying of athermoplastic.

BENEFITS

• Eliminates preheat time• Provides absolute on/off operation• Facilitates clean production• Allows precision fabrication• Produces finished edge with no loose fibers• Preserves breathability and absorption qualities

COMMON APPLICATIONS

• Clean room wipes• Hospital gowns• Gloves• Diapers• Filters• Face masks• Incontinence products• Mattress pads• Quilts• Window fashions

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324 Washington Street • West Warwick, RI 02893 • P: 401.821.8879 • F: 401.823.5543 • www.chasemachine.com

There are two ways to apply ultrasonic bonding:through plunge mode, for single-strike bondingsuch as spot welding, cutting to length, buttonholes, grommets, and attaching ties and straps;and through a rotary drum, for continuous webbonding. Chase Machine is primarily involved inrotary drum bonding and slitting machines forthe nonwovens industry.

Rotary drum machines use a custom-made steelcylinder to localize the energy from the ultrasonichorn to produce a specific pattern requested bythe customer. Bonding only takes place at thepoints of contact between the horn and thedrum pattern. The ultrasonic process is idealfor applications that require high loft, softness,breathability, and/or high absorption. It offersprecise bonding without stiffening material asthermal bonding can.

Branson Ultrasonics Corporation, the leadingworldwide manufacturer of ultrasonic andvibration welding equipment, provides thecomponents for our ultrasonics equipment.These include the horn, ultrasonic power supply,and the converter, which transforms the high-frequency electrical energy into mechanicalvibratory energy.

Chase Machine has extensive experience witha wide variety of web handling equipment. Thatenables us to offer customers numerous optionsbased the number of web layers, materialthicknesses, automated or manual tensioncontrols, and unwinds and rewinds. Dependingon the materials and bonding pattern, speedscan approach one thousand feet per minute.

For more information on ultrasonic rotarydrum bonding and slitting machines, or todiscuss a new application, please contactGuy Gil (guygil@chasemachine.com) orDan Baxter (dbaxter@chasemachine.com).