Novel nonwoven polyester fabric used in Toyota Prius as soundproof material

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  • Teijin and Hayashi Telempu’s jointly developed soundproof material
  • Nonwoven fabric comprising fibers that are oriented vertically
  • Applications: Lightweight sound-absorption auto parts

Teijin Limited and Hayashi Telempu Corporation announced today that Hayashi Telempu’s soundproof material (V-Wave™) made with Teijin’s nonwoven polyester fabric (V-Lap™) has been selected as soundproof material for the 2016 Toyota Prius, which launched in Japan in December 2015.

Applications: Lightweight sound-absorption auto parts

The Nonwoven structure with vertically oriented fibers enables V-Wave to perform as conventional soundproof materials, yet weighs only half as much. It is also an environmentally friendly because it is made with recycled polyester. The two companies are also using V-Lap and V-Wave to develop other lightweight sound-absorption auto parts, such as for ceilings and doors. V-Wave was first introduced as a sound-absorbing material for vehicle floors in 2012 and is currently used in automobiles worldwide.

V-Wave soundproof material

V-Wave soundproof material

Nonwoven fabric comprising fibers that are oriented vertically

V-Lap is a nonwoven fabric comprising fibers that are oriented vertically (upward). It is made with a unique manufacturing method to produce a structure that is bulky, lightweight and easy to mold. V-Lap was first utilized as a cushioning material for items such as bedding, and now its very good sound-absorbing property has led to its use as a soundproofing material for vehicles. Teijin is also developing V-Lap as a heat-insulating material for next-generation houses and as a super-lightweight ceiling material. As a nonwoven product, V-Lap can be bonded to other films through composite fabrication.

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