Binder treated fibrous webs and products

(57) the salt of the hydroxy acid of summary book invention, The functional group which can form a fiber or particles, and a "hybrid" ionic bond, When a binding material forms particles and a "hybrid" ionic bond, a fiber, a hydrogen bond, or a "hybrid" ionic bond is formed, When a binding material forms a fiber and a "hybrid" ionic bond, particles, hydrogen, a coordination share, or another functional group that can form a "hybrid" ionic bond is included. It is considered that amino acid is also a binding material which can form "hybrid" ion or an ionic bond between a fiber and particles. In order to combine particles with a fiber, it is considered that the salt of bases, such as a choline chloride, is also a useful binding material. The salt of a base forms particles or a fiber, and an ionic bond. Such coupled systems offer the practical alternative means of the existing coupled systems.