A weft knitting machine capable of altering wale density in any wale over each course.
The pattern weft thread (12) is linked by at least some sections to the basic knit (2) by at least one stitch wale of an additional warp thread (14).
Additionally, applying a fourth set of filaments that interlace repeatedly with the first set of filaments along the first wale direction.
The inner and outer toe ends are aligned and joined wale stitch to wale stitch to form a composite toe end, which is closed to provide a flat toe seam (10).
End portions of the blanks (BLK, BLK') remain interconnected until the tube (T) is slit walewise to provide separate blanks (BLK, BLK') for making up briefs.
In the rows of stitches, the stitches (82) of each second column of warp stitches (22) are off-set by a fraction of a stitch in relation to the stitches (81) of each first column of warp stitches (21).