| 摘要 |
A ventilation insert for textiles, with at least one layer, covered at least partially by an absorption material and having ventilation openings, the openings being at least partially closeable via a liquid by swelling of the absorption material, obtainable by: a) treating a layer having ventilation openings with a mixture, containing a wetting agent, initiator, polymerizable monomer or oligomers, and a cross-linking agent, as a preliminary stage for the absorption material; and b) polymerizing the monomer or oligomer to form the absorption material while forming a bonded connection between the absorption material and the layer. The ventilation insert has a relatively low thickness, a low weight per unit area, and high flexibility permanently and independently of moisture after economical production, via one layer, self-sealingly closing ventilation openings, and containing the absorption material. The absorption material is connected to the layer by bonding, at least in some regions. |
| 主权项 |
1. A ventilation insert for disposition in or on a textile, the ventilation insert comprising:
a ply, which is at least partly covered by an absorbent material and comprises ventilation apertures, wherein exposure of the ply to a liquid can cause at least some of the ventilation apertures to become closed by swelling of the absorbent material, and wherein the ply is obtained a method comprising a) treating the ply including the ventilation apertures with a mixture comprising (i) an absorbent material precursor comprising a polymerizable monomer or oligomer and a crosslinker, (ii) a wetting agent, and (iii) an initiator, and b) polymerizing the monomer or oligomer to form the absorbent material and to form a fusional bond between the absorbent material and the ply, wherein the fusional bond comprises at least regional attachment of the absorbent material to the ply. |
