figure 86

fibres in a lentil taken from a hammer beaten, probably 17th century blue paper (sample 172) showing long and entangled bast fibres. Non-fibrillated blue (1) and red fibre (2) and well fibrillated bast fibre (3), which proves that the formation of lentils is taking place during-, and is also caused by beating. Note the twisted yarn at lower centre and the parallel orientation of the fibres in the rest of the bundle. The blue colour of the paper is further enhanced by the presence of smalt (a-a”) [micrographs and z-stack BvV].

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