Gore-Tex is a membrane made of PTFE (Teflon). The Teflon is stretched so that billions of small holes are formed. The new porous material is then called ePTFE (e for expanded). This creates about 1.3 billion pores per cm2, each with a diameter of about 1/20,000th of a drop of water, but about 770 times larger than water vapor molecules. This means that no water can penetrate, but the internal water vapor can escape to the outside. There are Gore-Tex in different laminates the standard consists…
Remove the inner cardboard roll. This allows the toilet paper to be easy rolled-out from the inside (like the carnival streamers) instead of unrolling the sheets from the outside.
Silnylon is often used as the main material for tents. That is a nylon layer, which is coated with silicone on both sides. The silicone increases the tear strength and makes the material water repellent or waterproof.
Merino wool comes from sheep of the Merino genus. This type of sheep has wool fibers that are usually less than 24 microns thin. These thin threads ensure that sweat filled with bacteria is absorbed from the body. The fibers bind the bacteria of the sweat or trap them between the strands, preventing them from thriving and thus smelling bad. The bacteria are later washed out with the washing machine. Therefore, it can smell stronger during the washing process than when washing synthetics. It is…
