| 摘要 |
<p>Irritant-free gel compositions according to the present invention include less than 5 parts by weight of one or more marking agents, 0.25 - 2 parts by weight of a thickening agent; and 30 - 90 parts by weight water. The thickening agent is typically a vegetable gum. In some embodiments, the compositions may additionally include 20 60 parts by weight of at least one water-miscible solvent, such as monohydric alcohols, polyhydric alcohols and mixtures thereof. The water-miscible solvent may be methyl alcohol, ethyl alcohol, isopropyl alcohol, n-propyl alcohol, ethylene glycol, propylene glycol or a mixture thereof, and preferably a mixture of isopropyl alcohol and propylene glycol.</p> |
