The new fiber “NEORON®” was invented exclusively for NEFFUL. Both NEFFUL and TEIKEN have put forth full devotion towards the innovation of NEORON®’s research and development. All our efforts have been focused on implementing NEORON® into production. The new technology and research invested has suggested that NEORON® creates better material blends for better products! NEORON® is made from most of the same materials as Teviron and retains all of its features. NEORON®’s extensive line of products employs negative ion technology just like our old line Teviron! NEORON® supplies you with negative ions at all times, delivering health benefits like never before!

What is NEORON®?

  • The new fiber “NEORON®” was invented exclusively for NEFFUL by Teiken Limited.
  • NEORON trademark is made exclusively for Nefful.
  • The name NEORON comes from NE which stands for Nefful and NEO meaning new, as Neoron is the newest creation of fiber.
  • NEORON retains all the same features as Teviron – which are Superb Heat Insulation, Superior Moisture Permeability, Negative Static Electricity and Excellent Flame Retardancy.

Neoron’s brand new innovation also comes with a new logo, resealable packaging and product coding. The new logo resembles the wind which is symbolic to the comfortability of all Neoron products. The new packaging comes in a resealable uniform design along with English and Chinese instructions. The new product coding for Neoron is a simplistic code, consisting of the following categories:

Bedding Items
Legwear and Socks
Support Goods

Superb Heat Insulation

Neoron is a fiber with low heat conductivity. It has excellent heat insulation capabilities to prevent loss of body heat for consistent temperature.


Negative Ion Technology

Neoron fiber will generate negative static electricity and negative ions through friction by rubbing against the skin or other fiber materials.


Superior Moisture Permeability

When water is trapped in fiber, evaporation of water from the body will disperse heat energy, resulting in lowering of body heat. Neoron fiber does not absorb water and dries quickly even when soaked in sweat, thus keeping skin dry and comfortable.


Excellent Flame Retardancy

Neoron is a retardant material that is able to contain the spread of fire flames. The Neoron blanket is recognized as a fire prevention product by Japan Disaster Prevent Association.

Teviron is Nefful’s first generation fiber material. Neoron is our second generation fiber which was jointly developed by Teiken and Nefful.

Neoron Negative Static Electricity Friction Experiment (Rubbing with Other Material)

Test Material Neoron
Product Supports Bedding Accessories Underwear Panties Underwear Innerwear Outwear
Item Code SG001 B1020 AS001 AS007 UW601 UW201 OC004
Quantity of Static Electricity (Volt) Vertical -6380 -6120 -7700 -5430 -5440 -4020 -5240 -5100 -5140 -4100 -4100 -4100 -4000
Horizontal -6480 -6330 -7500 -5680 -5320 -4430 -6030 -5140 -5130 -3700 -4200 -4200 -4200
Rubbing Test Material Cotton Wool Cotton Cotton Wool Cotton Wool Cotton Wool Cotton Wool Cotton Wool
  • Conducted at the third party UNITIKA Evaluation Technology Organization Center in Japan
  • Experimental Method: Base on JIS L1094 Friction with Voltage Measurement
  • Room Temperature: 20° C, 40% Relative Humidity