| 摘要 |
The present invention relates to a process for labeling objects in a UV-detectable way as well as means which can be used in the said process. According to the invention, a composition is provided which contains 2,5-bis(5-tert-butyl-2-benzoxalyl)-thiophene as UV-active component and at least one solvent selected from esters, ethers, aromatic solvents and ketones. Another object of the invention is a fiber pen filled with the above composition. The invention also relates to the use of the composition and/or the UV-active component for labeling different objects. |
