Method and device for fibrillating cellulose fibers that permit easy fibrillation, in particular tencel fibers

Method of fibrillating cellulose fibers contained in a textile fabric web (3), said method comprising steps of

• passing the fabric web through a first storage chamber (6), accelerating the fabric web in a first direction by means of a high speed fluid toward a first rebound surface so that the accelerated fabric web is flung against the rebound surface (13, 16) by said flow of liquid,
• feeding the fabric web (3) from the first rebound surface (13) to a second fabric storage chamber (17),
• temporarily storing the fabric web in said second storage chamber,
• withdrawing the fabric web from the second fabric storage chamber (17) by means of a liquid flowing in a second direction opposite the first direction and transporting the fabric web back toward the first fabric storage chamber (6),
• accelerating the fabric web (3) by the flow of liquid flowing at high speed and flinging the fabric web against a second rebound surface (16) en route to said first storage chamber, and
• repeating the above sequence of steps until the surface area of the fibers is split and fibrils form.