公开(公告)号：US4234379A

公开(公告)日：1980-11-18

申请号：US910881

申请日：1978-06-02

申请人： Bernard W. Conway ,  Nelson L. Fegley ,  James Moran

发明人： Bernard W. Conway ,  Nelson L. Fegley ,  James Moran

IPC分类号： D21B1/12 ,  D21F1/00 ,  D21H5/18 ,  D21F11/00

CPC分类号： D21F1/0018 ,  D21B1/12

摘要： A process of producing a uniform fiber dispersion involves the use of an in-line dispersing chamber to provide an average fiber dwell time of only about ten minutes and less. The chamber is provided with a plurality of weedless, nonthrusting impellers that generate regions of reduced pressure and flow disruptive turbulence of high intensity, the turbulence being of sufficient intensity to rapidly open fiber bundles and disperse the individual long fibers during said dwell time within said chamber. The process produces a machine-made light weight glass fiber web material of exceptionally uniform fiber distribution. The web is comprised of micron diameter glass fibers having a fiber length of about 1/4 inch or more and a basis weight of about 5-30 grams/square meter. The web material exhibits an isolated multi-fiber defect count of less than 10 per 100 square feet and a visually perceptible overall uniform fiber distribution essentially devoid of "cloud effect" fiber density variations.

摘要翻译： 制造均匀的纤维分散体的方法包括使用在线分散室，以提供仅约10分钟和更短的平均纤维停留时间。 该室设置有多个无杂草的非推力叶轮，其产生具有高强度的减压和流动破坏性湍流的区域，湍流具有足够的强度以快速打开纤维束并且在所述室内的所述停留时间内分散各个长纤维 。 该工艺生产出机械制造的轻质玻璃纤维网材料，其纤维分布特别均匀。 纤维网由具有约1/4英寸或更大的纤维长度和约5-30克/平方米的基重的微米直径的玻璃纤维组成。 纤维网材料表现出小于10每100平方英尺的孤立多纤维缺陷计数，并且基本上没有“云效应”纤维密度变化的视觉上可察觉的整体均匀纤维分布。

公开(公告)号：US3960652A

公开(公告)日：1976-06-01

申请号：US489411

申请日：1974-07-17

申请人： Bernard W. Conway ,  James Moran

发明人： Bernard W. Conway ,  James Moran

IPC分类号： D04H11/08 ,  D21F11/00 ,  D21H5/02 ,  D21H5/26

CPC分类号： D21F11/004 ,  D04H11/08 ,  D21F11/006

摘要： A tufted nonwoven web material exhibiting high loft, bulk and absorbency is made by a papermaking technique using an apertured, plate-like, fiber-collecting element having a structure appropriate to preventing entanglement between adjacent tufts prior to removal from the element. The apertured element is adapted not only to form the tufted nonwoven fibrous web but also to permit consolidation of individual tufts and facilitate the formation of tufted webs from 100 percent wood pulp. Additionally, webs having tufts on both planar surfaces also can be formed by this technique.

摘要翻译： 通过造纸技术通过造纸技术制造出具有高蓬松，松散和吸收性的簇状非织造纤维网材料，该造纸技术使用具有适于防止相邻簇之间的缠结的结构的多孔的板状纤维收集元件，其在从元件移除之前。 有孔元件不仅适于形成簇状非织造纤维网，而且还允许固定单个簇，并且促进从100％木浆形成簇绒网。 此外，也可以通过这种技术形成在两个平面上具有簇的网。

公开(公告)号：US4042453A

公开(公告)日：1977-08-16

申请号：US673192

申请日：1976-04-02

申请人： Bernard W. Conway ,  James Moran

发明人： Bernard W. Conway ,  James Moran

IPC分类号： D04H11/08 ,  D21F11/00

CPC分类号： D04H11/08 ,  D21F11/004 ,  D21F11/006 ,  Y10T428/23957

摘要： A tufted nonwoven web material exhibiting high loft, bulk and absorbency is made by a papermaking technique using an apertured, plate-like, fiber collecting element having a structure appropriate to preventing entanglement between adjacent tufts prior to removal from the element. The tufted nonwoven fibrous web exhibits inwardly turned, spirally consolidated and entangled individual tuft head portions and substantially aligned and untwisted root portions interconnecting the head portion to the undisturbed planar main body of the web material.

摘要翻译： 通过造纸技术通过造纸技术制造出具有高蓬松，松散和吸收性的簇状非织造纤维网材料，该造纸技术使用具有适当的结构的多孔板状纤维收集元件，该结构适于防止在从该元件移除之前在相邻簇之间的缠结。 簇状非织造纤维织物呈现向内转动，螺旋状固结和缠结的单个毛簇头部分和基本对准和未扭曲的根部，将头部部分与网状材料的未受干扰的平面主体相互连接。

公开(公告)号：US4081319A

公开(公告)日：1978-03-28

申请号：US674152

申请日：1976-04-06

申请人： Bernard W. Conway

发明人： Bernard W. Conway

IPC分类号： D21F1/00 ,  D21F1/66 ,  D21F11/00

CPC分类号： D21F1/66 ,  D21F11/004

摘要： A continuous, essentially closed recirculating papermaking process is provided by using a dispersing medium of adjustable viscosity. The process permits the continuous reuse of the medium under preferred operating conditions. It includes the steps of forming a dispersion of fibers within the adjustable medium containing a pH sensitive viscosity producing agent, reducing the fiber consistency and the viscosity within the dispersion while maintaining the concentration of the agent substantially unchanged, subsequently forming a fibrous web material on a papermaking screen from said dispersion of reduced fiber consistency while separating the dispersing media from the fibers forming the web and continuously collecting the separated media and recirculating it within the system to effect a subsequent fiber dispersion as well as a fiber consistency reduction and viscosity reduction without substantially changing the concentration of the viscosity producing agent. The separated and recirculated dispersing media is capable of forming a high viscosity dispersing media for the fibers at the time of forming the subsequent fiber dispersion without the addition of more viscosity producing agent.

摘要翻译： 通过使用可调粘度的分散介质提供连续的，基本上封闭的循环造纸方法。 该方法允许在优选操作条件下连续重复使用该介质。 它包括在含有pH敏感粘度产生剂的可调节介质中形成纤维分散体的步骤，降低纤维稠度和分散体内的粘度，同时保持试剂的浓度基本上不变，随后在纤维网上形成纤维网材料 所述分散体的造纸筛网具有降低的纤维稠度，同时将分散介质与形成纤维网的纤维分离，并连续收集分离的介质并在系统内再循环以实现随后的纤维分散体，以及纤维稠度降低和粘度降低， 改变粘度产生剂的浓度。 分离和再循环的分散介质能够在形成随后的纤维分散体时形成用于纤维的高粘度分散介质，而不添加更多的粘度产生剂。