| 摘要 |
<p>Provided in the present invention is modified carmine containing polymers for example polyester, or bonding polymers for example polycarboxylic acids. A bio renewable agent for example a colorant having less side effects for environment and health and having improved thermal and sequential stability and light resistance is preferably provided. Provided are red, orange, and purple colorants (according to pH) including modified carmine, which can be used in coloring of polymers and do not need an additional coloring step.</p> |
