Glass direct roving and long glass fiber-reinforced thermoplastic resin pellet

Abstract

Provided is a glass direct roving that can achieve good productivity for long glass fiber-reinforced thermoplastic resin pellets, and achieve excellent spinning productivity and good strength of glass fiber-reinforced resin molded articles produced by using long glass fiber-reinforced thermoplastic resin pellets in combination. The glass direct roving includes a plurality of glass filaments bundled together, wherein the filament diameter of the glass filaments, D, is in the range of 17.5 to 21.5 μm, the number of the glass filaments bundled, F, is in the range of 3000 to 7000, the mass of the glass direct roving is in the range of 2450 to 4000 tex, the ignition loss of the glass direct roving, L, is in the range of 0.03 to 0.90%, and the D, F, and L satisfy the following formula (1): 1 ⁢ 0 ⁢ 5 ⁢ 0 ≤ ( D 4 × F 1 / 4 ) / ( 1000 × L 1 / 6 ) ≤ 1 640. ( 1 )

Dependencies are inferred from the claim text.