TDR, Twilled Reverse Dutch Weave
RPD
Reverse Plain Dutch Weave

TRD
Twilled Reverse Dutch Weave

RPD have warp wires laid as close as possible one to another with relatively thin diameters, while the weft wires are very strong - so called reversed weave.


Illustration above

TRD are also a reversed dutch twilled type, although in a twilled form. the warp wires are distributed as with RPD, although the weft wires are knocked up in a twilled weave pattern, so as not to deform the warp wires too much. Illustration below.