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    • 33. 发明授权
    • Moisture-controlled curing durable press process
    • 水分控制固化耐用冲压工艺
    • US6121167A
    • 2000-09-19
    • US137294
    • 1998-08-20
    • Hiroharu Okamoto
    • Hiroharu Okamoto
    • D06M15/423D06M10/00D06M10/08D06M13/127B32B9/04B05F3/02
    • D06M10/08D06M10/001D06M10/003D06M10/006D06M13/127D06M2101/06D06M2200/20Y10T442/277
    • A wrinkle-free/wrinkle-resistant cellulosic fiber-containing fabric which retains tensile-, tear- and abrasion-strength due to the reduction of hydrogen bonding in the fabric is obtained by a process which comprises pretreating the fabric with the processes to reduce and control hydrogen bonding in the fabric, and treating a cellulosic fiber-containing fabric with aqueous formaldehyde and a catalyst in liquid form capable of catalyzing the cross-linking reaction between the formaldehyde and cellulose. Such cross-linking is carried out by heat-curing the cellulosic fiber-containing fabric under saturated steam with or without high pressure and/or infrared or far-infrared radiation and/or high frequency (induction) radio waves. Under such conditions the formaldehyde reacts with cellulose in the presence of catalyst with no substantial loss of formaldehyde prior to said reaction so as to improve the wrinkle-free or wrinkle-resistant property of the fabric without substantial strength loss. This is accomplished by maintaining the moisture level during curing high enough to prevent detrimental increase in hydrogen bonding above the reduced level of hydrogen bonding by the prior process of liquid ammonia treatment and/or aqueous wetting. Such precise control of moisture and formaldehyde at curing is also achieved by superheated steam cure, moist-cure, which controls the same level of moisture throughout the curing process, or mild-cure with steam lower than 212.degree. F. (100.degree. C.).
    • 通过一种方法获得由于织物中氢键的降低而保持拉伸,撕裂和磨损强度的抗皱/抗皱纤维素纤维织物,该方法包括用织物预处理以减少和/ 控制织物中的氢键,以及用甲醛水溶液和能够催化甲醛和纤维素之间的交联反应的液体形式的催化剂处理含纤维素纤维的织物。 这种交联通过在具有或不具有高压和/或红外或远红外辐射和/或高频(感应))无线电波的饱和蒸汽下热固化含纤维素纤维的织物来进行。 在这种条件下,甲醛在催化剂存在下与纤维素反应,在所述反应之前甲醛基本上不会损失,从而提高织物的无皱纹或抗皱性能,而没有显着的强度损失。 这是通过在固化期间保持水分水平足够高以通过液氨处理和/或水性润湿的现有方法防止氢键的降低水平降低以上的氢键的有害增加。 固化时对湿度和甲醛的精确控制也可以通过过热蒸汽固化,湿固化来实现,其在整个固化过程中控制相同水平的水分,或用低于212°F的蒸汽温和固化(100℃) )。