Flexible and does not crease
When wool is pulled it can stretch approximately an additional 30% in length. It is capable of restoring its original form, indicating that it is an extremely flexible fibre. Wool has natural curls (known as "crimp"), which are made up of two layers, one which easily expands and one that does not easily expand, making it capable of enduring stretching and shrinking, hence a fibre capable of restoring itself so flexibly does not crease easily.
Reacts to humidity, a fibre that breathes
Sheep's wool has layers within it, with the outside and inside possessing water repellent qualities and highly absorbent qualities, respectively, seemingly opposing traits. When the inside of the fibre absorbs enough humidity, the outside opens up and releases the moisture. If the inside does not have sufficient moisture, the outside closes and adjusts the level of humidity.
Wool's absorbency is approximately 2 times that of cotton and approximately 40 times that of polyester. In light rain, water droplets can simply be wiped off, while water vapours penetrate the inside of the fibre, preventing clamminess from sweat, maintaining a comfortable feeling.
Warm in the winter, cool in the summer mechanism
How wool becomes warm
Wool absorbs water vapours emitted from the body and in the air, causing it to generate heat. Any excess humidity created from the body is absorbed by the wool, keeping a desirable level of humidity between the body and wool. The curls in the wool preserve humidity and body temperature, maintaining the wearer's comfort.
How wool cools down
As stated in the aforementioned relation between humidity and sheep's wool, sheep's wool has two layers which help balance humidity. The high absorbency keeps the inside of the clothes fresh, while the moisture wicking propensity releases the heat along with the humidity to keep cool. It evaporates sweat before it becomes water droplets, helping to keep the wearer dry and fresh.
A fibre that is naturally antibacterial and odor resistant
Wool was originally formed from sheep's skin. Recent research has found that like the human body it possesses an immune system against viruses and bacteria. Even without the power of science it is capable of being antibacterial and odor resistant, that is the power of the natural fibre wool.
Absorbency and heating propensity to prevent sweat from getting cold
Heat of absorption refers to the heat created when a fibre absorbs humidity. Wool is said to generate a lot of heat when this occurs, and is said to reach approximately 2.5 times that of cotton and approximately 20 times that of polyester. So, if you use wool underwear or bed linen, even if you sweat water particles would be absorbed and the high heat of absorption would prevent your sweat from getting cold. It is said that having on wool underwear while stuck in a winter mountain can make a life changing difference.
Does not get dirty easily and stays clean
Sheep's wool is covered in an outer layer, equivalent to cuticles on the human hair. This outer layer repels water droplets but absorbs small particles like water vapours. This is why, rain and dirty water do not seep in, while stains are easy to remove. Not only are water soluble stains easy to remove but because it is able to maintain a certain level of humidity inside, static electricity does not build up, so as an added benefit it will not attract dust.
Ecological materials kind to the environment
Wool is a natural fibre that protects sheep. It is mainly comprised of protein and therefore even if disposed it would be broken down by microorganisms and would return to the earth. In a society trying to alleviate the burdens on the environment, a material like wool that can be broken down by nature and return to the earth, is an ecological and timely material.
Soft to the touch / Blocks out UV
The fibres are long and thin, being only 17.5～19.5μ in diameter. This results in a material that is very soft to the touch.
Using washing machines
Please see the following points.
- Make sure to use a neutral detergent for delicates. Do not use bleach.
- Please wash by hand or use a neutral detergent for delicates. Do not use bleach.
- Animal fibers such as wool and silk may transfer dye to one another. Wash them separately as much as possible, or wash them together in close colors (dark colors, light colors, etc).
- If left wet, the dyes will seep into surrounding objects. Please dry as soon as possible.
- Lightly stretch after washing to prevent streaks, and hang in the shade when drying.
- Do not use clothes dryers.