Section+2.2

= Insulation = Home, Section 2.1, Section 2.3, Section 2.4, Section 2.5

= INSULATION =

A material that retards or prevents the progression or transmission of electricity, heat, moisture, shock, or sound from one item or medium to another.
 * Clothing,especial coats,hats and scarves, provide an additional layer of insulation protecting our bodies from elements like cold or warm air and water away from the skin.**
 * Clothing,especial coats,hats and scarves, provide an additional layer of insulation protecting our bodies from elements like cold or warm air and water away from the skin.**



**Protein Fibers**
__Insulation of Wool__
 * **Wool** insulates against heat and cold. It is comfortable in both hot and cold weather because it absorbs moisture vapor. The crimp in the wool fibers makes them stand apart from each other trapping insulating air between the fibers. Air is one of the best insulators found in nature. In hot weather the absorption/evaporation process works to help keep the body cooler.
 * Sheep's wool is used more than any other animal's wool.

__Insulation of Silk__
 * **Silk** is protein animal fiber that will not conduct heat. It's a horrible insulator against cold weather.

**Synthetic Fibers**
__Insulation of Nylon__
 * Nylon is a good insulator in electrical materials
 * Nylon has nonconducting qualities.

__Insulation in Acrylic__
 * Acrylic is a good insulator and is popular in the use of sweaters, fleece fabrics and blankets
 * The crimp in acrylic makes a good bulk, which is perfect for warm socks
 * Many fabrics are blended with acrylic.

[|Synthetic Fibers]

Cellulose Fibers
__Insulation of Flax__
 * The earliest traces of use of flax can be dated back to 8,000 B.C. So we know that flax is a great insulator; we learned from our ancestors!
 * Flax is a good insulator because it absorbs humidity and it allows the skin to breathe.
 * Linen is the number one textile that is made from flax.
 * Flax's good wicking ability leads to good insulation in warm-weather clothing.



__ Insulation of Cotton __
 * Cotton is the best fiber in the world! **
 * ** It's makes up more than 50 percent of the fabric sold in the world. **
 * Cotton has high heat conductivity; this makes the fabric comfortable in hot weather.
 * Heat passes freely through cotton; therefore it must be combined with other fibers to make winter jackets.

Sources: http://www.businessdictionary.com/definition/insulation.html []

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