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    • 6. 发明授权
    • Viscous dispersion for forming wet-laid, non-woven fabrics
    • 用于形成湿法成网的无纺织物的粘性分散体
    • US4049491A
    • 1977-09-20
    • US551399
    • 1975-02-20
    • Ralph E. BrandonCharles J. DavisMichael RingRoy S. Swenson
    • Ralph E. BrandonCharles J. DavisMichael RingRoy S. Swenson
    • D04H3/00D21F11/00D21H13/10D21D3/00
    • D21F11/004Y10T137/0335
    • An improved process for forming a non-woven fabric by wet-laying, on paper making equipment, staple length, synthetic fibers having a length to diameter ratio of about 400 to 3000, and an improved, non-woven fabric produced by the process. The process involves forming a stable, viscous, uniform, air-fiber-water dispersion by: adding the fibers to a high-shear agitated mixture of water and a dispersant to separate the fibers and to completely and uniformly distribute the individual fibers throughout the resulting, high-shear agitated, air, water and fiber mixture; and then, slowly adding a thixotropic thickener to the high-shear agitated mixture to form the viscous, air-fiber-water dispersion, having a nascent viscosity of about 10 to 125 cps., when measured at a shear rate of 30.5 sec..sup.-1, and in which the individual fibers are restrained from becoming entangled and from forming knits, bundles, and strings.
    • 通过湿法成网,造纸设备,短纤维长度,长径比约为400至3000的合成纤维以及通过该方法生产的改进的无纺织物形成无纺布的改进方法。 该方法包括通过以下方式形成稳定,粘稠,均匀的空气纤维 - 水分散体:将纤维添加到高剪切搅拌的水和分散剂混合物中以分离纤维,并将各纤维完全均匀地分布在所得的 ,高剪切搅拌,空气,水和纤维混合物; 然后在高剪切搅拌的混合物中缓慢加入触变增稠剂以形成粘稠的空气 - 纤维 - 水分散体,其具有约10至125cps的初生粘度,当以30.5秒的剪切速率测量时, 1,并且其中单个纤维被束缚成缠结和形成针织物,束和绳。
    • 8. 发明授权
    • Wet-laid, non-woven fabrics
    • 湿布,无纺布
    • US4512849A
    • 1985-04-23
    • US618325
    • 1984-06-08
    • Ralph E. BrandonCharles J. DavisMichael RingRoy S. Swenson
    • Ralph E. BrandonCharles J. DavisMichael RingRoy S. Swenson
    • D21F11/00D21H5/12
    • D21F11/004Y10T442/626
    • An improved process for forming a non-woven fabric by wet-laying, on paper making equipment, staple length, synthetic fibers having a length to diameter ratio of about 400 to 3000, and an improved, non-woven fabric produced by the process. The process involves forming a stable, viscous, uniform, air-fiber-water dispersion by: adding the fibers to a high-shear agitated mixture of water and a dispersant to separate the fibers and to completely and uniformly distribute the individual fibers throughout the resulting, high-shear agitated, air, water and fiber mixture; and then, slowly adding a thixotropic thickener to the high-shear agitated mixture to form the viscous, air-fiber-water dispersion, having a nascent viscosity of about 10 to 125 cps., when measured at a shear rate of 30.5 sec..sup.-1, and in which the individual fibers are restrained from becoming entangled and from forming knits, bundles, and strings.
    • 通过湿法成网,造纸设备,短纤维长度,长径比约为400至3000的合成纤维以及通过该方法生产的改进的无纺织物形成无纺布的改进方法。 该方法包括通过以下方式形成稳定,粘稠,均匀的空气纤维 - 水分散体:将纤维添加到高剪切搅拌的水和分散剂混合物中以分离纤维,并将各纤维完全均匀地分布在所得的 ,高剪切搅拌,空气,水和纤维混合物; 然后在高剪切搅拌的混合物中缓慢加入触变增稠剂以形成粘稠的空气 - 纤维 - 水分散体,其具有约10至125cps的初生粘度,当以30.5秒的剪切速率测量时, 1,并且其中单个纤维被束缚成缠结和形成针织物,束和绳。
    • 9. 发明授权
    • Entangled non-woven web-forming apparatus
    • 缠结非织造网成形设备
    • US4132592A
    • 1979-01-02
    • US770690
    • 1977-02-22
    • Ralph E. BrandonMichael RingJames B. Morris
    • Ralph E. BrandonMichael RingJames B. Morris
    • D21F1/02
    • D21F1/02
    • In an apparatus for forming a non-woven, fibrous web, a device for making a uniform density dispersion of the fibers in an aqueous fiber slurry and depositing the dispersion onto a web former, while maintaining its integrity. The device includes a generally laterally divergent channel, in which the greatest depth of the flowing stream of fiber slurry is at its fiber slurry entry end, having rolls for uniformly dispersing the fibers, rolls for uniformly spreading the dispersion laterally throughout the channel, and means in cooperation with the rolls for moving the dispersion to an exit end of the channel adjacent the web former. Preferably, the device is equipped with air doctors directed at the rolls for insuring the separation of the dispersion from each roll as it is moved to another roll.
    • 在用于形成非织造纤维网的装置中,用于使纤维在水性纤维浆料中均匀的密度分散并将分散体沉积在幅材成形器上同时保持其完整性的装置。 该装置包括大致横向发散的通道,其中纤维浆料的流动流的最大深度在其纤维浆料进入端,具有用于均匀分散纤维的辊,用于使分散体均匀地均匀地分散在整个通道中的辊,以及装置 与用于将分散体移动到邻近网状物形成体的通道的出口端的辊相配合。 优选地,该装置配备有指向辊的空气医生,用于确保当分散体从每个辊移动到另一个辊时分离。