| abstract |
The invention relates to a preparation method of an anti-ultraviolet microcapsule finishing agent, belonging to the technical field of sun protection. In the invention, the anti-ultraviolet microcapsule finishing agent is prepared by compounding polyvinyl alcohol with gelatin as the wall material of the microcapsule. The gelatin is a mixture of polypeptide molecules whose molecular weight can reach tens of thousands to hundreds of thousands, and is mainly composed of amino acids. It has a positive charge below the isoelectric point, and a large number of hydroxyl groups on its molecular structure make gelatin extremely hydrophilic, and gelatin is not easily dissolved in cold water. After mixing gelatin with polyvinyl alcohol, the molecular chain energy of polyvinyl alcohol It forms a stable three-dimensional network structure with the peptide molecules of gelatin, and uses gelatin and polyvinyl alcohol as the wall material and the core material to have chemical stability, no reaction, and the microcapsules can form a dense film on the surface of the fabric on the fabric , and the hydrophilic groups of gelatin can form hydrogen bonds with the groups of the fabric, which can effectively improve the washing fastness of the finishing agent. |