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Wool is the textile fiber obtained from sheep and other mammals, especially goats, rabbits, and camelids. [1] The term may also refer to inorganic materials, such as mineral wool and glass wool, that have some properties similar to animal wool. As an animal fiber, wool consists of protein together with a small percentage of lipids. This makes ...
Advanced Placement (AP) Human Geography (also known as AP Human Geo, AP Geography, APHG, AP HuGe, APHug, AP Human, HuGS, AP HuGo, or HGAP) is an Advanced Placement social studies course in human geography for high school, usually freshmen students in the US, culminating in an exam administered by the College Board.
Unusual fibers such as Angora wool from rabbits and Chiengora from dogs also exist, but are rarely used for mass production. Not all animal fibers have the same properties, and even within a species the fiber is not consistent. Merino is a very soft, fine wool, while Cotswold is coarser, and yet both Merino and Cotswold are types of sheep. This ...
It is a property of textile materials that creates ease by maintaining moisture and thermal levels in a human's resting and active states. The selection of textile material significantly affects the comfort of the wearer. Different textile fibers have unique properties, that make them suitable for use in various environments.
Textile fibres or textile fibers (see spelling differences) can be created from many natural sources (animal hair or fur, cocoons as with silk worm cocoons), as well as semisynthetic methods that use naturally occurring polymers, and synthetic methods that use polymer-based materials, and even minerals such as metals to make foils and wires.
Physical properties are those that can be assessed with the naked eye or a microscope. A textile testing laboratory determines the mechanical properties of different fibers. [6] There are various test methods that help in identifying the fibers, Fiber identification and examination includes microscopic analysis, burning tests, and chemical testing.
They can be used as a component of composite materials, where the orientation of fibers impacts the properties. [2] Natural fibers can also be matted into sheets to make paper or felt. [3] [4] The earliest evidence of humans using fibers is the discovery of wool and dyed flax fibers found in a prehistoric cave in the Republic of Georgia that ...
The air is held in the voids inside the material itself as well as in the gaps between the clothing layers. Of the natural clothing materials, fur and leather provide the best insulation. Wool, with its lanolin oil, is not very absorbent and keeps its insulation properties well when wet, unlike cotton. [6]