Encyclopedia Archive

Quartz

Quartz is a pure silica fiber made by extruding molten quartz through a stream of hot air. It has excellent heat resistance and high electric strength. Quartz fibers were made by M. Gaudin in France in 1838 and were used in the construction of delicate balances.

Quilting

Quilting is the process where a pattern of stitching is produced on a textile. Padding (such as cotton, wadding and similar material) is then added under the fabric. Finally, the padding is fixed by several regular stitching lines (they can form even a specific design). Quilting can be used to produce clothing, blankets, accessories for furniture etc.