| abstract |
[PROBLEMS] To have a thermoplastic and flexible, initial hue is colorless, vividly develops color with good responsiveness by water wetting, and also has natural inconvenience due to moisture absorption other than water wetting, color loss and color bleeding. To provide an absorbent article using a hot-melt composition that is difficult to cause. An absorbent article according to the present invention comprises a top sheet 2, a back sheet 3, and an absorbent body 4 interposed between both sheets 2, 3, and a hot melt composition that changes color when contacted with a body fluid. 5 is applied. The hot melt composition 5 comprises pH indicator (a) 0.1 to 5% by weight which is substantially colorless at pH 7 and develops color in the acidic region, glycerin fatty acid ester (b) 20 to 90% by weight having a surface active action, poly 20 to 35% by weight of alkylene glycol (c), 0 to 70% by weight of polymer (d) having a carboxyl group, and 0.1 to 5% by weight of acidic substance (e) other than (b) and (d). [Selection] Figure 1 |