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What is "Fluorescent Brightener" - Definition & Explanation

A substance that is added to a textile (uncoloured or coloured) to increase the apparent light reflectance in the visible region by the conversion of ultraviolet radiation into visible light and so to increase the apparent brightness or whiteness of the textile.
Fluorescent brightening agents or optical brightening agents or fluorescent whitening agents are dyes that absorb light in the ultraviolet and violet region of the electromagnetic spectrum, and re-emit light in the blue region.

Some other terms

Some more terms:

Refers to an open weave fabric. In a leno weave the warp yarns are arranged in pairs, twisting or interlocking around the filling yarn to prevent slippage and make the open weave stronger and more...
A cotton fabric in a plain or twill. Can also be spelled domet. Generally made in white. Has a longer nap than on flannelette. Soft filling yarns of medium or light weight are used to obtain the...
Paisley is a droplet-shaped vegetal motif, similar to half of the T'ai Chi symbol, the Indian bodhi tree leaf, or the mango tree. The design originated in India and spread to Scotland when British...
A fine, lightweight cotton in a plain weave that is produced in the finishing processes from the same gray goods as used for batiste, cambric, lawn. Soft and has a slight luster in the better...
Interfacing is a common term for a variety of materials used on the unseen or "wrong" side of fabrics in sewing. Interfacings can be used to stiffen or add body to fabric, such as the interfacing...

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