Originally posted by dropzone
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"The difference [in solubility] between the two [blue and brown] dyes also suggested that the shawl was not machine printed, but that the dye was hand-applied."
And later on an absorption test using a spectrophotometer shows that there is only one pigment in the blue areas, from which they conclude that it was "definitely not screen printed".
But looking at the pattern, it was surely machine printed in some way.
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