To obtain a multifunctional ink emitting negative ions and improved in both antimicrobial and deodorizing effects owing to photocatalytic activity in combination with the use of far-infrared rays radiating at the same time.

The multifunctional ink is obtained by admixing a photocatalytically functional material into an ink composition comprising a macromolecular compound hard to be electrostatically charged, rare element-containing minerals, tourmaline or far-infrared radiating ceramics, and a pigment or dye. This multifunctional ink has both antimicrobial and deodorizing activities in combination with radiating negative ions and using far-infrared rays and antistaticity. A laminated material using this ink is also provided.