| 摘要 |
PURPOSE:To obtain the title package efficiently providing high-quality prepreg, having excellent opening properties, by specifying rigidity of carbon fiber bundle and correlation between yarn width of traverse turn parts of ends of package having wound the yarn bundle and yarn width at the central part of the package. CONSTITUTION:The objective package which is prepared by winding no-twist carbon fiber bundle having >=10cm K value showing rigidity defined by a nearest distance between one face b' of a measuring stand b (theta=90 deg.) and the tip of specimen (a) of carbon fiber bundle fixed to the measuring stand b and has equal correlation between yarn width A of traverse turn parts of ends of package having wound the fiber bundle and yarn width B at the central part of the package. In order to make the yarn width A and the yarn width B equal, winding is preferably carried out by a traverse guide device comprising five roller groups 2-7 having 20 deg. angle from a guide roller 1 transversing in parallel with a shaft of a winding bobbin 8'. |
