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    • 4. 发明授权
    • Apparatus for treating textile fabric to retard inflammability
    • 用于处理纺织品以延缓易燃性的装置
    • US3946497A
    • 1976-03-30
    • US323655
    • 1973-01-15
    • William Carter
    • William Carter
    • D06B23/16D06B5/08D06M11/60F26B13/30
    • D06B5/08D06M11/60
    • Textile fabric previously impregnated with THPOH is treated to retard inflammability by passage therethrough of toxic ammonia gas in apparatus which permits the THPOH-NH.sub.3 reaction to be carried out in a sealed chamber preventing escape of the toxic gas. The invention operates to confine the gas in a flow path whereby substantially all of the gas flowing through the apparatus is passed directly through the fabric. The fabric is passed through the sealed chamber by means of gas-tight entrance and exit portals. A perforated drum is mounted within the chamber and the fabric is passed about the perimeter of the drum. Sealing elements cooperating with the drum confine ammonia gas introduced into the interior of the drum to flow only through those perforations covered by fabric. Undue accumulation of water which is a product of the reaction is avoided by both the slanted ceiling configuration of the chamber which promotes condensate runoff and the positive gas flow velocity established within the chamber which tends to draw water vapor from the reaction site.
    • 处理预先用THPOH浸渍的纺织织物,以通过装置中的有毒氨气的通过来阻止燃烧性,其允许THPOH-NH 3反应在密封室中进行,防止有毒气体逸出。 本发明用于将气体限制在流动路径中,从而基本上所有流过设备的气体直接通过织物。 织物通过密封的入口和出口进入密封室。 多孔滚筒安装在腔室内,织物绕鼓的周边通过。 与鼓配合的密封元件限制引入滚筒内部的氨气,仅流过由织物覆盖的穿孔。 作为反应产物的水的不适当积聚通过促进冷凝物径流的室的倾斜顶板结构和在室内建立的倾向于从反应部位吸收水蒸气的正气流速度两者来避免。