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Woolen (British spelling woollen) is the name of a yarn and cloth usually made from wool.

The woolen process entails that the wool be opened and subsequently carded (often several times to obtain prerequisite homogeneity). The wool leaves a carding machine as a thin web. In the woolen process, the web, after the final card, is split up into numerous bands which are rubbed into roving and often stored on bobbins awaiting transport to a spinning frame.

There are several technologies used for spinning roving into thread with or without additional stretching of the yarn; formerly the most important being ring spinning and selfactor spinning; nowadays open end spinning. Regardless of the technique employed, the resulting woolen yarn has relatively high 'bulk' (that is, a lot of empty space between threads) and therefore exhibits good thermal insulation properties compared to worsted yarns which are smooth, shiny, and compact.

The first step to spin a woolen yarn is to card the fiber into a rolag using handcarders.

The rolag is spun without much stretching of the fibers from the cylindrical configuration. This is done by allowing twist into a short section of the rolag, and then pulling back, without letting the rolag change position in your hands, until the yarn is the desired thickness. The twist will concentrate in the thinnest part of the roving, thus when the yarn is pulled, the thicker sections with less twist will tend to thin out. Once the yarn is the desired thickness, enough twist is added to make the yarn strong. Then the yarn is wound onto the bobbin, and the process starts again.

"Woolen", as an adjective, also refers to a thing which is composed of wool, in the same vein as wheaten, golden, and the somewhat rarer silvern and leathern.

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• Woolen, Semi-Woolen,Semi-Worsted, and Worsted Spinning - Gives a detailed explanation on the different ways fiber preparation and technique can created different yarns.

v • d • e Spinning
Materials:	Noil · Rolag · Roving · Sliver · Staple · Tow · Woolen · Worsted
Techniques:	Carding · Combing · Twist per inch
Tools:	Distaff · Niddy noddy · Spindle · Spinning wheel · Spinners weasel
Industrial Spinning:	Cotton-spinning machinery · Spinning frame · Spinning jenny · Spinning Mule · Waterframe