It is conceived that the fiber as it is produced naturally in the cotton plant or the tree is made up of many ultimate units, held together by some
adhesive like lignin and if in place of these, commercial steps could be developed whereby a chemical bond could replace this physical adhesion, the resuit would be a
stronger fiber with greater service life.
Much
like the iPhone 7 Plus, the Apple Watch 2 also features a larger Taptic Engine, as well as a much
stronger adhesive sealant to improve its water resistance.