Single yarn

Nittobo manufactures and sells various types of single yarn for printed wiringboards and industrial materials. It meets customers' needs by offering a unique product lineup that includes several types of glass fiber yarn, tex yarn counts, and filament diameters.

Each single yarn product of the highest quality is manufactured under rigorous quality control.

E-glass yarn

■ For printed wiringboards

Nittobo's E-glass yarn for printed wiringboards consists mainly of single yarn produced by twisting strands that comprise 4.0–7.4µm filaments. Its E-glass yarn products, which excel in electric insulation, heat resistance, tensile strength, and dimensional stability, are generally used for printed wiringboards. Nittobo offers workable E-glass yarn that features highly stable quality, which has been surface-treated for use in weaving.

■ List of products (standard)

Yarn count Product designation Filament diameter Filament count Twist TEX Length per weight
µm Filaments /25mm g/1000m km/kg
Extremely thinThick ECBC 3000 1/0 1.0Z 4.0 50 1.0 1.7 606.0
ECBC 1500 1/0 1.0Z 4.0 100 1.0 3.3 303.0
ECC 1200 1/0 1.0Z 4.5 100 1.0 4.2 238.0
ECD 900 1/0 1.0Z 5.3 100 1.0 5.6 178.5
ECD 450 1/0 1.0Z 5.3 200 1.0 11.2 89.2
ECDE 300 1/0 1.0Z 6.4 200 1.0 16.7 59.5
ECDE 150 1/0 1.0Z 6.4 400 1.0 33.7 29.6
ECDE 75 1/0 1.0Z 6.4 800 1.0 67.5 14.8
ECE 225 1/0 1.0Z 7.4 200 1.0 22.5 44.6

■ Examples of applications

■ Industrial materials

Nittobo makes its E-glass yarn for industrial materials highly compatible with resin through its proprietary surface treatment technology. The E-glass yarn provides a workable basic ingredient of composite materials.

■ List of products (standard)

Yarn count Product designation Filament diameter Filament count Twist TEX Length per weight
µm Filaments /25mm g/1000m km/kg
ThinThick ECDE 150 1/0 1.0Z 6.4 400 1.0 33.7 29.6
ECDE 75 1/0 1.0Z 6.4 800 1.0 67.5 14.8
ECG 150 1/0 1.0Z 9.1 200 1.0 33.7 29.6
ECG 75 1/0 0.7Z 9.1 400 0.7 68.7 14.8
ECG 75 1/0 1.0Z 9.1 400 1.0 68.7 14.8
ECG 37 1/0 1.0Z 9.1 800 1.0 135.0 7.4

T glass

Nittobo's T glass is superior even to E glass in terms of tensile strength, heat resistance, and dimensional stability. T-glass yarn is used for special printed wiringboard and industrial materials, contributing to making composite materials more efficient.

  • * Currently, Nittobo is not selling T-glass yarn, and only woven T-glass cloth is commercially available.

NE glass

Nittobo's NE-glass yarn, which is manufactured using its unique NE glass with focus on such characteristics as low dielectric constant and low dielectric dissipation factor, is used for printed wiringboards.

  • * Currently, Nittobo is not selling NE-glass yarn, and only woven NE-glass cloth is commercially available.

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