-
公开(公告)号：US20180002836A1
公开(公告)日：2018-01-04
申请号：US15545899
申请日：2016-02-03
申请人： LENZING AG
发明人： Christian Sperger
CPC分类号： D01F13/02 , C08B1/08 , C08B9/00 , C08B16/00 , C08J11/04 , C08J2301/02 , D01F2/08 , Y02P70/627
摘要： A process for producing a man-made cellulosic molded body using a man-made cellulosic raw material, including the steps of forming a cellulose solution by dissolution of cellulosic raw material, the extrusion of the cellulose solution obtained to form a molded body, and coagulation and regeneration of the cellulose to obtain the man-made cellulosic molded body, wherein the man-made cellulosic raw material is mixed with a second cellulosic raw material prior to forming the cellulose solution.
-
2.发明申请公开(公告)号：US20170284023A9
公开(公告)日：2017-10-05
申请号：US15027945
申请日：2014-11-18
申请人： LENZING AG
CPC分类号： D21C9/153 , C08B16/00 , D01F2/00 , D01F2/06 , D01F2/08 , D01G11/00 , D10B2201/02 , D21C9/00 , D21C9/163 , Y02W30/66
摘要： A process for pretreating reclaimed cotton fibers to be used in the production of molded bodies from regenerated cellulose characterized by effective metal redaction and adjustment of the degree of polymerization and brightness, including a metal removing stage and an oxidative bleaching stage of the reclaimed cotton fibers or pulp produced thereof. Reclaimed cotton fibers treated according to the described process may be used alone or in blends with conventional dissolving pulp as raw material for the production of molded bodies from regenerated cellulose. The process enables technically smooth, safe, and economically feasible spinning via the Viscose or Lyocell process, therefore, the current invention provides an efficient recycling pathway for cotton waste materials.
-
公开(公告)号：US10370778B2
公开(公告)日：2019-08-06
申请号：US15545899
申请日：2016-02-03
申请人： LENZING AG
发明人： Christian Sperger
摘要： A process for producing a man-made cellulosic molded body using a man-made cellulosic raw material, including the steps of forming a cellulose solution by dissolution of cellulosic raw material, the extrusion of the cellulose solution obtained to form a molded body, and coagulation and regeneration of the cellulose to obtain the man-made cellulosic molded body, wherein the man-made cellulosic raw material is mixed with a second cellulosic raw material prior to forming the cellulose solution.
-
公开(公告)号：US11718930B2
公开(公告)日：2023-08-08
申请号：US16754965
申请日：2018-10-08
申请人： LENZING AG
IPC分类号： D01D5/18 , D01D5/02 , D01D5/06 , D01D10/00 , D01D13/02 , D01D4/02 , B65H51/02 , B65H54/00 , D01D10/04
CPC分类号： D01D5/02 , B65H51/02 , B65H54/00 , D01D4/022 , D01D5/06 , D01D5/18 , D01D10/00 , D01D10/04 , D01D13/02 , B65H2701/3132
摘要： The invention shows a spin-up device (11, 51) and a method for spinning up a spinning device (1, 101) for the continuous extrusion of molded bodies (3) from a spinning solution (6), containing a solvent and cellulose dissolved in the solvent, wherein the molded bodies are extruded from the spinning solution (6) through spinnerets (7) of the spinning device (1, 101) in the form of a loose spinning curtain (2), the molded bodies (3) of the loose spinning curtain (2) are combined into a molded body bundle (4) after the extrusion, and the molded body bundle (4) is, in a further step, fed to a draw-off member (10) of the spinning device (1, 101) in order to start a continuous extrusion of the molded bodies (3). In order to make the spin-up method simpler in terms of process technology and more reproducible, it is proposed to increase the tensile strength of at least some areas of the molded bodies (3) of the loose spinning curtain (2) after their extrusion and before combining them into a molded body bundle (4).
-
公开(公告)号：US10316467B2
公开(公告)日：2019-06-11
申请号：US15027945
申请日：2014-11-18
申请人： LENZING AG
摘要： A process for pretreating reclaimed cotton fibers to be used in the production of molded bodies from regenerated cellulose, characterized by effective metal reduction and adjustment of the degree of polymerization and brightness, including a metal removing stage and an oxidative bleaching stage of the reclaimed cotton fibers or pulp produced thereof. Reclaimed cotton fibers treated according to the described process may be used alone or in blends with conventional dissolving pulp as raw material for the production of molded bodies from regenerated cellulose. The process enables technically smooth, safe, and economically feasible spinning via the Viscose or Lyocell process, therefore, the current invention provides an efficient recycling pathway for cotton waste materials.
-
6.发明申请PROCESS FOR PRETREATING RECLAIMED COTTON FIBERS TO BE USED IN THE PRODUCTION OF MOLDED BODIES FROM REGENERATED CELLULOSE 审中-公开用于预备用于生产来自再生纤维素的模制体的被复原的棉花纤维的方法公开(公告)号：US20160237619A1
公开(公告)日：2016-08-18
申请号：US15027945
申请日：2014-11-18
申请人： LENZING AG
CPC分类号： D21C9/153 , C08B16/00 , D01F2/00 , D01F2/06 , D01F2/08 , D01G11/00 , D10B2201/02 , D21C9/00 , D21C9/163 , Y02W30/66
摘要： A process for pretreating reclaimed cotton fibers to be used in the production of molded bodies from regenerated cellulose characterized by effective metal redaction and adjustment of the degree of polymerization and brightness, including a metal removing stage and an oxidative bleaching stage of the reclaimed cotton fibers or pulp produced thereof. Reclaimed cotton fibers treated according to the described process may be used alone or in blends with conventional dissolving pulp as raw material for the production of molded bodies from regenerated cellulose. The process enables technically smooth, safe, and economically feasible spinning via the Viscose or Lyocell process, therefore, the current invention provides an efficient recycling pathway for cotton waste materials.
摘要翻译： 一种用于从再生纤维生产成型体的再生棉纤维的预处理方法，其特征在于有效的金属加工和聚合度和亮度的调节，包括回收棉纤维的金属去除阶段和氧化漂白阶段， 产生的纸浆。 根据所述方法处理的回收棉纤维可以单独使用或与常规溶解纸浆混合使用，作为用于从再生纤维素生产成型体的原料。 该方法通过粘胶或Lyocell工艺在技术上平滑，安全和经济可行的纺丝，因此，本发明为棉花废料提供了有效的循环途径。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.013 秒)
