"Chemical lace (sometimes referred to as Schiffli lace) is a form of machine-made lace. This method of lace-making is done by embroidering a pattern on a sacrificial fabric that has been chemically treated so as to disintegrate after the pattern has been created. Schiffli machines came into use in the late 19th century. Before that, embroidery machines called Swiss hand machine were used to make chemical lace as well as embroideries.
This embroidery is nowadays typically done on a multi-head or multi-needle Schiffli machine or loom that has a very large, continuous and overlapping embroidery field. The lace pattern is designed such that the embroidery thread creates an interlocking series of threads that will, in essence, become a "stand-alone" piece of lace." - (en.wikipedia.org 24.06.2022)
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