Italo Corzani,Thomas James Klofta,Laveeta Joseph,Johannson Jimmy Tee
申请号：
US15565832
公开号：
US20180110896A1
申请日:
2016.04.13
申请国别(地区):
US
年份:
2018
代理人:
摘要：
The present invention relates to wetness indicator compositions that comprise at least one leuco dye and one color developer in a hot-melt adhesive matrix. Upon contact with water or with water-containing fluids, said wetness indicator compositions are apt to change their color from a colorless state to a colorful state or from a first colored state to a second colored state having a color different from the first one； in particular, from a first colorless, white, or translucent state to a second state having a visible color, or vice versa. The disclosed wetness indicator compositions can be used as wetness/fluid indicators in various applications, e.g. in packaging articles and in absorbent articles； in an absorbent mat or sheet or operatory cloth for medical use； in a wound dressing product； in an absorbent mat or sheet for food products.
