1, material. A sponge is placed in the sponge ink box; The fiber ink box is filled with silk floss.
2. Ink absorption and storage. The elasticity of silk cotton is weakened after absorbing ink, and it is easy to harden and stagnate after a long time, and the ink storage capacity is not as large as that of sponge. Sponges, on the other hand, are not easy to harden because of their good elasticity, large ink absorption, large ink storage and long ink circulation time.