Abstract: β-cyclodextrin(β-CD) has a torus-like molecular structure with hydrophilic exine and hydrophobic cavity, as a result of this cavity, β-CD can form inclusion complexes with a wide variety of hydrophobic guest molecules, which provide a wide range of applications in development functional fabrics like aromatic, repellence, deodorizing, anti-bacterium etc. In this article, the monochlorotriazinyl-β-cyclodextrin(MCT-β-CD) was synthesized by cyanuric chloride, β-CD and NaOH, and then grafted onto cotton fabric. The results showed that the synthesis process as follows: the molar ratio of cyanuric chloride and β-CD was 3:1, reaction solution was 80mL, reaction time was 9 hours; the grafting process as follows: the concentration of MCT-β-CD was 120g/L, the concentration of Na2CO3 was 30g/L, baking temperature was 150℃，time was 5 min. FT-IR suggested that the cyanuric chloride had ideally reacted with β-CD; alkaline phenolphthalein experiment demonstrated that the β-CD had not only succeed grafted onto cotton fabric, but also had high washing fastness.

Key words: monocholrotriazinyl-&, beta, -cyclodextrin, synthesis, cotton fabric, graft percentage