the CHIP in 18th and 19th century chip bonnets and hats was actually made from thin strips of shaved wood. It was used by hat-makers in a similar way to braided straw, and so was sometimes called “chip straw” or “chip braid”. But it was still wood.
It could be plaited or woven just like straw. Once formed into a sort of basket in whatever shape was currently fashionable, it could be bleached or coloured, then trimmed with as much silk, lace, velvet, feather etc. as the milliner and her customer desired.
Silk bonnets sometimes had chip and wire sewn into the seams, creating a framework to give them shape.
Hat-makers and milliners used chip well into the 1900s. Like straw, hemp and other natural fibres, it was particularly well suited to sun hats and spring bonnets.
This explanation of how it was made is from the 1920s.
Chip braid is the only wood braid in general use…White pine and Lombardy poplar, and also the English willow…are used to make white chip hats…The young tree is split into sections and planed smooth…Another special plane of knife blades is then drawn lengthwise down the boards, scoring long, fine narrow cuts…A smooth plane takes these fine strips off, and a thin chip straw results. (Charlotte Rankin Aiken, Millinery, 1922)from the same source @ vintageSewing.info
Japaneses to use to make their metallic silver and gold on chip wood and cherry tree too.
for the embroideries of kimonos as uchikake
Canton was a chinese braid ...
The Glossary of Millinery and Dry goods terms.