image:Sotto Fabric

Rubber Electrode for BiosignalsSotto Fabric

Product features

Conductive rubberized cloth

Provides flexible, easy-to-handle rubber coated fabric electrodes. Although dry electrodes they have high response characteristics. It can be cut for use, and is washable, allowing repeated use. Having the characteristics of a rubber-impregnated fabric, this product is useful in applications requiring complicated shapes. They are also suitable for electrical stimulation applications, such as rehabilitation.

Conductive rubberized cloth
  • Dry measurement possible
  • Useful for electrical stimulation applications
  • Can be sewn
  • Integrated into a fabric
  • 3:GOOD HEALTH AND WELL-BEING
  • 9:INDUSTORY,INNOVATION AND INFRASTRCTURE
  • 12:RESPONSIBLE CONSUMPTION AND PRODUCTION

Developers’ voice

A fabric-integrated electrode that can be sewn into clothes

An electrode applicable in a complicated form such as a curved line

Development background

image:Rubber electrode made from urethan-based conductive rubber and aramid fiber Rubber electrode made from urethan-based conductive rubber and aramid fiber

Conventionally electrodes are made from gel or plated metal. Their disadvantages are that they are single-use products and that, if the wearer of the electrodes feels stressed while the hard, cold metal electrodes are in contact for a given period of time, noise signals may be generated, possibly resulting in unsuccessful measurement.

NOK committed itself to developing electrodes from a soft material that would flexibly attach itself to the skin, smoothly following the movement of the wearer’s body, enabling stress-free measurement of such biomedical signals as electrocardiographic or electromygrams. NOK thus developed a material that integrates conductive rubber and a fabric. The soft, biocompatible rubber electrode series, Sotto, has thus been launched into the market.

Among the Sotto Series products, Sotto Fabric can be sewn into clothes, intended for application to wearable devices. The Sotto Fabric can be used not only to detect biomedical signals but also to provide electrical stimulation for muscle training, massage and rehabilitation.

Development story

(left) NEW PRODUCTS DEVELOPMENT DEPT. NEW PRODUCTS DEVELOPMENT SECTION3 Taisei Hayashi (right) NEW PRODUCTS DEVELOPMENT DEPT. NEW PRODUCTS DEVELOPMENT SECTION3 Masayuki Kubo

The start point of the Sotto Fabric development was to satisfy the market needs for a product enabling measurement in various body positions without giving discomfort to the wearer. The development process was full of challenges: The material must be safe to the living body and must have low color migration. We even introduced an unprecedented production system. We conducted verification tests in-house, where we attached the product to sportswear, washed it, and then measured myoelectric and electrocardiographic signals. We are proud of having developed an electrode that will satisfy your needs, which is repeatedly useful and poses reduced discomfort when worn.

Sotto Fabric
application examples

Sotto Fabric-attached devices, wrapped around the arms, are measuring myoelectric potential while the wearer swings a golf club. Myoelectric signals are measured at a total of six positions, which are the right and left forearms, upper arms, and sides of the arms, with low noise.

  • AXEL For purchase,please visit the AXEL website.
  • NOK For inquires, please contact here.
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