Process of making cellulose moldings and fibers
    1.
    发明授权
    Process of making cellulose moldings and fibers 失效
    制造纤维素模制品和纤维的工艺

    公开(公告)号:US5968434A

    公开(公告)日:1999-10-19

    申请号:US95340

    申请日:1998-06-10

    摘要: To prepare cellulose mouldings, a solution of cellulose in a tertiary amine-oxide is moulded in a hot state and the moulded solution is introduced into a precipitation bath in order to precipitate the contained cellulose, wherein the hot moulded solution is cooled before introduction into the precipitation bath. Cooling occurs immediately after the moulding process and preferably consists of blowing air horizontally on to the cellulose moulding. The process according to the invention allows spinning of the cellulose solution with a high fiber density without the spun fibers sticking together after emerging from the spinneret. In spite of the high fiber density, it furthermore allows the use of a long air gap between the spinneret and the precipitation bath, by which means sufficient time is generated in the spinning process to affect the textile properties of the fibers by drawing at the die (FIG. 1).

    摘要翻译: 为了制备纤维素模制品,将纤维素在叔胺氧化物中的溶液模塑成热状态,并将模塑溶液引入沉淀槽中以沉淀所含的纤维素,其中将热模制溶液冷却,然后引入 沉淀浴 在模制过程之后立即进行冷却,并且优选地将空气水平地吹到纤维素模塑件上。 根据本发明的方法允许纤维素溶液以高纤维密度纺丝,而纺丝纤维在从喷丝头出来之后粘在一起。 尽管纤维密度高,但是它还允许在喷丝头和沉淀浴之间使用长的气隙,这就意味着在纺丝过程中产生足够的时间以通过在模具中拉伸来影响纤维的纺织性能 (图。1)。

    Process of and apparatus for making cellulose mouldings
    2.
    发明授权
    Process of and apparatus for making cellulose mouldings 失效
    制造纤维素模制品的方法和设备

    公开(公告)号:US5589125A

    公开(公告)日:1996-12-31

    申请号:US142313

    申请日:1993-11-16

    摘要: To prepare cellulose mouldings, a solution of cellulose in a tertiary amine-oxide is moulded in a hot state and the moulded solution is introduced into a precipitation bath in order to precipitate the contained cellulose, wherein the hot moulded solution is cooled before introduction into the precipitation bath. Cooling occurs immediately after the moulding process and preferably consists of blowing air horizontally on to the cellulose moulding. The process according to the invention allows spinning of the cellulose solution with a high fibre density without the spun fibres sticking together after emerging from the spinneret. In spite of the high fibre density, it furthermore allows the use of a long air gap between the spinneret and the precipitation bath, by which means sufficient time is generated in the spinning process to affect the textile properties of the fibres by drawing at the die.

    摘要翻译: PCT No.PCT / AT93 / 00053 Sec。 371日期:1993年11月16日 102(e)日期1993年11月16日PCT 1993年3月17日PCT公布。 公开号WO93 / 19230 PCT 日期1993年9月30日为了制备纤维素模制品,将纤维素在叔胺氧化物中的溶液模塑成热状态,并将模塑溶液引入沉淀槽中以沉淀所含的纤维素,其中热模塑溶液为 在引入沉淀浴前冷却。 在模制过程之后立即进行冷却,并且优选地将空气水平地吹到纤维素模塑件上。 根据本发明的方法允许纤维素溶液以高纤维密度纺丝,而纺丝纤维在从喷丝头出来之后粘合在一起。 尽管纤维密度高,但是它还允许在喷丝头和沉淀浴之间使用长的气隙,这就意味着在纺丝过程中产生足够的时间以通过在模具中拉伸来影响纤维的纺织性能 。

    Process of making cellulose fibers
    4.
    发明授权
    Process of making cellulose fibers 失效
    制造纤维素纤维的工艺

    公开(公告)号:US5650112A

    公开(公告)日:1997-07-22

    申请号:US219617

    申请日:1994-03-29

    摘要: The spinneret according to the invention is especially suitable for spinning cellulose solutions and has a die body which is essentially rotationally symmetrical having an inlet in its centre for cooling gas, an inlet for cellulose solutions, an annular deep-drawn spinning insert of precious metal with spinning holes wherein the spinning insert is designed pan-shaped in cross-section, and a baffle plate to deflect the cooling gas stream through the cellulose filaments which are extruded from the spinning holes, so that the cooling gas stream strikes the extruded cellulose filaments essentially at right angles. The spinning holes in the spinning insert are uniformly spaced from one another.

    摘要翻译: 根据本发明的喷丝头特别适用于纺丝纤维素溶液,并且具有基本上旋转对称的模具体,其中心具有用于冷却气体的入口,纤维素溶液的入口,贵金属的环形深拉旋转插入物, 旋转孔,其中纺丝插入件横截面设计为圆形,以及挡板,用于使冷却气流偏转通过从纺丝孔挤出的纤维素长丝,使得冷却气流基本上冲击挤出的纤维素长丝 直角 纺纱刀片中的纺丝孔彼此均匀间隔开。

    Heated rotatable roll arrangement
    7.
    发明授权
    Heated rotatable roll arrangement 失效
    加热旋转辊布置

    公开(公告)号:US4629867A

    公开(公告)日:1986-12-16

    申请号:US715398

    申请日:1985-03-25

    摘要: There is disclosed a heated roll for the thermal treatment of formed products. It includes a driven hollow shaft and a hollow roll body of a circular-ring-shaped cross section and closed on all sides to accommodate a heat transfer medium. Power supply lines for heating elements as well as electric wires of temperature probes are led through the hollow shaft. In order to provide a heated roll to be used without problems both in the low-temperature range and in the high-temperature range up to about 600.degree. C. and to reach a uniform temperature profile over the total operation surface of the roll outer shell and a long service life of the heat transfer medium, without excessive temperature prevailing at the bearings of the driving shaft, and to provide for an easy repair, the hollow shaft is connected with the roll body by a hub. One or several saline compound(s) or (a) low-melting metal(s) or metal alloy(s) are contained in the interior of the hollow roll body. The heating elements are provided in the cylindrical inner part of the roll body. The temperature probes are arranged both in the cylindrical inner part and in the cylindrical outer shell, of the roll body.

    摘要翻译: 公开了用于热处理成形产品的加热辊。 它包括从动空心轴和圆环形横截面的中空辊体,并且在所有侧面上封闭以容纳传热介质。 用于加热元件的电源线以及温度探针的电线被引导通过空心轴。 为了在低温范围和高达约600℃的高温范围内提供无需使用的加热辊,并且在辊外壳的总操作表面上达到均匀的温度分布 并且传热介质的使用寿命长,驱动轴的轴承没有过高的温度,并且为了便于维修,空心轴通过轮毂与辊体连接。 在中空辊体的内部包含一种或几种盐水化合物或(a)低熔点金属或金属合金。 加热元件设置在辊体的圆筒形内部。 温度传感器布置在辊体的圆柱形内部和圆柱形外壳中。