Method for preparing hydrated adhesive

The invention provides a method for preparing hydrated adhesive, which solves the problems of disposable usage, difficultly-controlled pasting position, difficult removal and the like in the traditional tackifier fundamentally. The technical key points of the invention are as follows: the hydrated adhesive is prepared by mixedly stirring the following raw materials by weight percent at normal temperature and pressure: 10%-35% of sodium alga acid (C6H7O8Na), 5%-30% of competed hydrate, 20%-50% of water-soluble adhesive and 5%-65% of water. The hydrated adhesive in the invention has the advantages of controllable viscosity, stable physicochemical property, environment protection, capability of repeated use, no residual and the like, and is suitable for caking of solid materials such as various paper, plastic and the like.