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What is "Blotch" - Definition & Explanation

Uneven absorbtion of wood stain due to changing directions of the wood grain at the surface. Some woods such as pine, cherry and maple are prone to blotch. This is sometimes confused with "figure" where there is a variation in the wood tones when finished. The former is normally a defect and the latter is not. You can prevent blotch by pre-sealing the wood with a "spit-coat" (thinned) coat of shellac, "wood conditioner", use of dye instead of pigment, or by using a gel stain that has

Some other terms

Some more terms:

Has a longer or higher pile than velvet, but shorter than plush. It is pressed flat and has a high lustre made possible by a tremendous roller-press treatment given the material in finishing. Now...
Fabrics which have received a treatment, which causes shrinking. Often done on cottons before cutting the fabric in order to remove the tendency for shrinkage in the finished garment. The percent of...
a) Fabric A length of finished fabric of less than a customary unit (piece) length. b) Finishing 1. Each passage of a length of fabric through a machine, for example in jig-dyeing. 2. A joint...
(eyelet) - Formed by a contoured patch of zig-zag stitching, followed by a cut---a portion of which is circular. Eyelet buttonholes are usually used on heavy fabrics and/or with large buttons. A gimp...
pH is the measure of acidity or alkalinity of a substance. On a scale of 0-14, 7 is neutral (neither acid nor alkaline). Lower than 7 is acidic (gives up a hydrogen atom when added to water) and...

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