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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:

A system of spinning, using a ring spinning frame that drafts the roving, twists the yarn, and winds it on the bobbin continuously and simultaneously on one operation. Modern ring frames are suitable...
The process where garments or part garments are dyed after manufacture (garments are made up). This enables the client to make late decisions about the colours that can be used, which means it can be...
Medium weight, durable fabric made of cotton or cotton blend yarns. A tightly woven, strong fabric that is often finished with a water repellant coating. In men's wear most commonly used for trench...
A beret is a soft round cap with a flat crown and is normally worn by both men and women. The cap fits snugly around the head, and the soft crown can be shaped in a variety of ways. It is commonly...
Fibres spun from two different polymers. The most common types are made from polymers which have different melting points and are used for thermal bonding. Another variant is produced from polymers...

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