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terminology

Filigrana

This is a complex technique in which thin threads of coloured glass are picked up at regular intervals as the object is blown and shaped. By continuing to blow or by rotating the object, a refined, almost graphic effect is created in the glass.

source Eliens, T.M. & Vergeest, A., Museum Jan – ontstaan en collectie, Waanders, Zwolle, 2021, blz. 122

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Making reticello or filigree is a difficult technique for glassblowers. Extremely fine, thin canes of glass are twisted together while the product is being blown and shaped. The main difficulty lies in keeping the spacing between the canes absolutely regular. A sophisticated, almost graphic effect can be created in the glass by inflating the object more or by rotating it. Well-known examples are wineglasses with twisted stems into which a spiral of white, red or red and white threads has been introduced.

source Museum Boijmans Van Beuningen

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(Italian, “filigree glass”) The generic name for blown glass made with colorless, white, and sometimes colored canes. The filigrana style originated on the island of Murano in the 16th century and spread rapidly to other parts of Europe where façon de Venise glass was produced. Manufacture on Murano continued until the 18th century, and it was revived in the 20th century.

source Corning Museum of Glass

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in dutch:
Techniek voor geblazen glas, waarbij op verschillende manieren gebruik gemaakt wordt van vooraf gemaakte kleurglasstaafjes (wit en/of gekleurd). Zie ‘Draadglastechnieken’; techniek uit Venetie afkomstig; ‘vetro a fili’: alle glasdraden parallel; ‘vetro a retorti’: de glasdraden inwendig getwist; ‘vetro a reticello’: (netwerk) de glasdraden kruisen.

source Lexicon Sybren Valkema


See YouTube ‘Filigrana glass’

alternate terms

Vetro a filigrana, Reticello, filigree

dutch term

Filigraan, Reticello, filigrain