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    • 3. 发明公开
    • METHOD OF PRODUCING A NONWOVEN MATERIAL
    • 用于生产摇粒绒物质
    • EP1735489A1
    • 2006-12-27
    • EP04721751.8
    • 2004-03-18
    • SCA HYGIENE PRODUCTS AB
    • STRANDQVIST, Mikael
    • D04H5/02
    • D04H5/02D04H3/11D04H3/115D04H5/03Y10T442/689Y10T442/697
    • A method of producing a patterned and/or apertured nonwoven material wherein a web of continuous filaments (11) are formed on a forming member (12), the continuous filaments being free from each other without any thermal or adhesive bonds therebetween, and applying a wetformed fiber dispersion containing natural fibers and/or synthetic or regenerated staple fibers (13) on top of said synthetic filaments. The web is hydroentangled, from the side on which the natural fibers and/or staple fibers (13) are applied, in two subsequent hydroentangling stations (16; 18) and is between said hydroentangling stations transferred from a first hydroentangling wire (12) having a mesh value of at least 20 mesh/cm, to a second hydroentangling wire (17), having a mesh value of no more than 15 mesh/cm. A nonwoven material is obtained having one side with predominantly continuous filaments and one side with predominantly natural fibers and/or synthetic staple fibers, wherein the material on the side with predominantly natural fibers and/or synthetic staple fibers (13) has a three-dimensionally patterned structure and that natural fibers and/or synthetic staple fibers are penetrating into the layer of continuous filaments (11) and are protruding through the layer of continuous filament.
    • 9. 发明公开
    • PROCESS FOR REINFORCING A HYDRO-ENTANGLED PULP FIBRE MATERIAL, AND HYDRO-ENTANGLED PULP FIBRE MATERIAL REINFORCED BY THE PROCESS
    • 加固水力缠结纤维材料的方法以及通过该方法增强的水力缠结的纤维材料
    • EP1699960A1
    • 2006-09-13
    • EP04820695.7
    • 2004-11-23
    • SCA Hygiene Products AB
    • STRALIN, AndersSTRANDQVIST, Mikael
    • D04H1/48D06M15/263D21H15/06D21H25/02D21H19/58
    • D21H23/28D21H15/06D21H19/20D21H25/02
    • A process for reinforcing a hydro-entangled pulp fibre material, wherein pulp fibres, including pulp fines, and water are mixed in order form a fibre suspension which is dewatered in order to form a precursor fibre web which is hydro-entangled at a maximum water-jet pressure higher than 85 bar and then dried. Reinforcement fibres, having a fibre length above 5 mm, are introduced into the process and a small amount from about 0.5 to about 10 g/m2 dry solids of a copolymer dispersion is applied as a substantially continuous coating onto the precursor web being in a wet state enabling the copolymer dispersion to migrate in a z-direction in order to become uniformly distributed throughout the web after the drying, resulting in a reinforced fibre network capable of binding and retaining a majority of the pulp fibres and any remaining fines within the material while maintaining a low material stiffness.
    • 一种用于增强缠结水力纸浆纤维材料的方法,其中将纸浆纤维(包括纸浆细粒)和水混合以形成脱水的纤维悬浮液,以便形成在最大水量下水缠结的前体纤维纸幅 喷射压力高于85巴,然后干燥。 将具有5mm以上纤维长度的增强纤维引入该方法中,将少量约0.5至约10g / m 2干燥固体的共聚物分散体作为基本上连续的涂层施加到湿润的前体纤维网上 使得共聚物分散体能够在z方向上迁移,以便在干燥后均匀分布在整个网状物中,从而产生能够结合并保留大部分纸浆纤维和材料内的任何剩余细粒的增强纤维网络 保持较低的材料刚度。