摘要:
Spinnerets are used to make synthetic fibers having the unique property of spontaneously transporting water on their surface. The synthetic fibers satisfy the equation (1-X cos .theta..sub.a)
摘要翻译:喷丝头用于制造具有在其表面上自发输送水的独特性质的合成纤维。 合成纤维满足等式(1-Xcosθa)<0,其中θa是在由与纤维相同的材料制成的平坦膜上测量的水的前进接触角,并且具有相同的表面处理(如果有的话) X是纤维横截面的形状因子,其满足以下等式其中Pw是纤维的润湿周长,r是围绕纤维横截面的外接圆的半径,D是短轴尺寸 穿过纤维横截面,并且其中当从合成尿液测试流体的储存器沿着20cm长的斜坡测量到所附接的平台上的吸收剂时,所述纤维的上坡通量值为2至60cc / g / hr 10厘米高。
摘要:
An extrusion head (14) for producing yarn from a heat-plasticized material, including at least one body (16) defining a chamber (15) for distributing plasticized material over a plate (38) having extrusion openings formed therein. The chamber is supplied by an upper side channel (19) and comprises a downwardly decreasing cross-section of downward flow over at least a portion (24) of the vertical length of the chamber. This decrease is arranged to generate compressive and shear stresses over time in the plasticized material between the side supply channel (19) and the bottom of the chamber (27), said stresses being respectively substantially the same regardless of the path taken by said plasticized material.
摘要:
Disclosed are fibers that are capable of spontaneously transporting certain fluids, for example aqueous fluids, such as water, on their surfaces. The fibers, especially in the form of tow, can be incorporated into absorbent articles, such as diapers, in order to transport fluids to more effectively utilize the absorbent portion of the article. The fibers can be synthetically coated with absorbent materials.
摘要:
Disclosed are fibers that are capable of spontaneously transporting certain fluids, for example aqueous fluids, such as water, on their surfaces. The fibers, especially in the form of tow, can be incorporated into absorbent articles, such as diapers, in order to transport fluids to more effectively utilize the absorbent portion of the article. The fibers can be synthetically coated with absorbent materials.
摘要:
A melt spinning apparatus is disclosed which includes a supporting housing, a melt supply block mounted in the upper end of the housing, and a spin plate mounted adjacent the lower end of the housing so as to define a spinning chamber between the block and plate. A melt diverting plate is positioned in the spinning chamber for deflecting the melt entering into the chamber, and the melt diverting plate is configured such that substantially the same pressure drop occurs in the melt as it moves from the melt supply duct to all portions of the upper surface of the spin plate, so as to achieve a substantially uniform denier among the resulting filaments.
摘要:
An industrial tape for reinforcing materials such as laminates and mouldings, comprises a knitted woven or non-woven ground fabric on which a carbon filament tow is held by overlying holding threads. In the case of a knitted ground fabric the overlying holding threads are preferably knitted loops.
摘要:
A method for electroblowing fibers is provided which involves the steps of: forcing a polymer fluid through a spinneret in a first direction towards a collector located a first distance from the spinneret, while simultaneously blowing a gas through an orifice that is substantially concentrically arranged around the spinneret, wherein the gas is blown substantially in the first direction; wherein an electrostatic differential is generated between the spinneret and the collector; and collecting the fibers, and its use in preparing submicron scale fibers of various types, particularly hyaluronan fibers, and the hyaluronan nanofibers thus formed.
摘要:
A process for making a multi-ply fabric, which includes the steps of applying a water soluble material, which has no adverse effect on fabrics, around a water insoluble thread to provide a binding yarn; binding a plurality of unit fabrics one upon another with the binding yarn to provide a multi-ply fabric; putting the multi-ply fabric in water to dissolve the water soluble material thereby providing a multi-ply fabric bound with only the water insoluble thread.