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What is "pH" - Definition & Explanation

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 greater than 7 is alkaline (a base), giving up OH (hydroxide) when added to water. The further away the number is from 7, the "stronger" it is. Each fabric has a preferred pH. PH is also used in water-based cleaning as some soils yield to different pH solutions.

Some other terms

Some more terms:

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A method of layout to determine a right angle (square corner) in frames, fabric, construction, etc. It derives from the fact that a triangle with sides of 3-4-5 will have a right angle. The legs will...
Rich Jacquard-woven fabric with all-over interwoven design of raised figures of flowers. Name derived from French meaning to “ornament.” Often gives an embossed appearance by contrasting surfaces,...
A light, fine cloth made using carded or combed, linen or cotton yarns. The fabric has a crease-resistant, crisp finish. Linen lawn is synonymous with handkerchief linen. Cotton lawn is a similar...
A T-shirt (or tee shirt) is a shirt, usually with short sleeves and a round neck, put on over the head, usually without pockets (though terms such as long-sleeved T-shirt and sleeveless T-shirt are...

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