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    • 3. 发明授权
    • Method for producing laterally spread reticular web of split fibers
    • 用于生产分裂纤维横向铺展网状网的方法
    • US3953909A
    • 1976-05-04
    • US500205
    • 1974-08-23
    • Masahide YazawaKazuhiko KuriharaHaruhisa TaniMasaki Matsumoto
    • Masahide YazawaKazuhiko KuriharaHaruhisa TaniMasaki Matsumoto
    • D04H3/04D04H13/00D04H13/02D04H11/00
    • D04H13/02D04H1/4382
    • A stabilized laterally spread reticular web of split fibers is produced by feeding a web of split fibers onto a plurality of belts in side-by-side arrangement on the inlet side thereof, the belts circulating between an inlet-side roller and an outlet-side roller, the advancing route of the belts being planely diverging and the returning route of the belts being planely converging, making the surfaces of at least the belts among the plurality of belts, on which both the side edge parts of the web are placed, wet with a liquid, preferably water containing a small amount of a surfactant, laterally spreading the web on the advancing route of the belts to a given lateral spreading ratio, while temporarily fixing both the side edge parts of the web onto the belts by the surface tension of the liquid, withdrawing the web onto a rotating hot drum through a guide rod, applying suctions to both the side edge parts of the web on the drum, in order to laterally spread slacking side edge parts of the web outwards by the suctions, and drying and heat-treating the laterally spread web while travelling the laterally spread web from one drum to another in a series of several drums, thereby eliminating strains due to the lateral spreading. The resulting web is suitable for producing non-woven fabrics by lamination.
    • 分裂纤维的稳定的横向铺展的网状纤维网是通过在其入口侧并排布置将分裂纤维的纤维网进给到多个带上而制造的,所述带在入口侧辊和出口侧之间循环 带子的前进路线平坦地分开,带子的返回路线平面会聚,使得至少在带子的两个边缘部分放置的多个带中的带之间的表面湿润 使用液体,优选含有少量表面活性剂的水,将幅材横向扩展到带的前进路径上至给定的横向铺展比,同时通过表面张力临时将幅材的侧边缘部分固定到带上 的液体,通过导杆将卷材退回到旋转的热鼓上,对滚筒上的幅材的两个侧边缘部分施加吸力,以便横向扩展t的松弛侧边缘部分 他通过吸盘向外网,并且在横向铺展的纸幅上进行干燥和热处理,同时在一系列多个滚筒中将横向铺展的纸幅从一个滚筒移动到另一个滚筒,从而消除由于横向扩展引起的应变。 所得到的纤维网适用于通过层压生产无纺织物。
    • 6. 发明授权
    • Method of manufacturing a reticular web having reinforced selvages
    • 制造具有加强筋的网状网的方法
    • US4335070A
    • 1982-06-15
    • US222972
    • 1981-01-07
    • Masahide YazawaHiroshi YazawaHaruhisa TaniKazuhiko Kurihara
    • Masahide YazawaHiroshi YazawaHaruhisa TaniKazuhiko Kurihara
    • D04H1/00D04H3/04D04H13/02B29D7/14
    • D04H1/00Y10T428/24777
    • A reticular web of thermoplastic resin composed of split or slit fibers is longitudinally fed around a system of nip rollers as it is transversely spread along its selvages which then longitudinally shorten into contact with small-diameter end portions of one of the nip rollers. At least one dimensionally stable thread is attached to and along each of the web selvages to reinforce the latter. The web thus laterally spread is caused to heat-shrink at its middle portion on a heated drum until the middle portion is of substantially the same length as that of the selvages. Each of the selvages including the thread has a basis weight which is substantially the same as or smaller than that of the middle portion. The selvages of the reticular web thus treated are rendered dimensionally stable for guidance of the web in a manner to keep the latter constant widthwise while the web is wound around or reeled out from a take-up roll.
    • 由分裂纤维或狭缝纤维构成的热塑性树脂的网状纤维网围绕夹辊系统纵向送入,因为它沿着其边缘横向扩展,然后其纵向缩短以与其中一个夹持辊的小直径端部接触。 至少一个尺寸稳定的螺纹连接到并沿着每个腹板边缘以加强后者。 使由此横向扩展的纤维网在加热的鼓的中间部分进行热收缩,直到中间部分与丝网的长度基本相同。 包括螺纹的每个锯片具有基本上等于或小于中间部分的基重的基重。 如此处理的网状网的网纹在尺寸上稳定,以便在幅材卷绕卷绕或从卷取辊中卷出的同时使纸幅的宽度方向保持不变。