摘要:
A wet formed web is overfed onto a running net by a liquid stream type web feeding apparatus so as to place the web into folded condition which is then subjected to regeneration and aftertreatments.
摘要:
Crude immunoglobulin G isolated from human blood plasma is treated according to a conventional technique (such as the tricalcium phosphate adsorption method) to remove aggregates therefrom to such an extent that they are not detectable by gel filtration analysis. In order to produce an aqueous solution of immunoglobulin G having a reduced anticomplementary activity, the resulting solution is then filtered through a porous polyolefin membrane having a pore size larger than the molecular size of immunoglobulin G, in the presence of a stabilizer having surface activity. The aqueous solution of immunoglobulin G so produced is suitable for use in intravenous injection because its anticomplementary activity is low.
摘要:
A nonwoven fabric having no pattern and composed of 100% synthetic fibers, wherein individual fibers are held together by three-dimensional entanglement into a stabilized sheet form without being subjected to any bonding treatment, which nonwoven fabric has a structure characterized by a specific volume of the nonwoven fabric of 3.5 cm.sup.3 /g or less, a bending index (in terms of R) of individual fibers of 4.0 or more, and a strength efficiency (in terms of S) of the nonwoven fabric of 90% or more. Such a nonwoven fabric has excellent properties which are comparable to conventional woven fabrics in not only hand but also practical performance characteristics. This nonwoven fabric is manufactured by a method which comprises placing on a substantially smooth supporting member a web, 35 to 170 gm/m.sup.2 in basis weight, composed of highly shrinkable synthetic fibers having a potential heat shrinkage of 50% or more, exposing said web to the impact of fine jet streams of water discharged under a pressure of 10 to 35 kg/cm.sup.2, whereby allowing individual fibers to entangle one another, thereafter subjecting the web to wet heat treatment at free length conditions to allow the web to shrink by 50% or more in area, drying the shrunk web at a temperature at which no change takes place in the shape and internal structure of individual fibers, and then subjecting the dried web to heat setting under an applied pressure of 200 g/cm.sup.2 or more.
摘要翻译:一种无图案的无纺织物,由100%的合成纤维组成,其中单个纤维通过三维缠结保持在稳定的片状而不进行任何粘合处理,该无纺织物的特征在于体积比 3.5cm 3 / g以下的无纺布,单纤维的弯曲指数(以R计)为4.0以上,无纺布的强度效率(以S计)为90%以上。 这种非织造布具有优异的性能,与传统的机织织物相比,不仅手工而且具有实用的性能特性。 该非织造织物通过以下方法制造:将基本平滑的支撑构件放置在基重为35〜170gm / m 2的纤维网上,所述幅材由潜热收缩率为50%以上的高收缩性合成纤维构成, 对于在10〜35kg / cm 2的压力下排出的细水喷射流的影响,由此允许单个纤维彼此缠结,然后在自由长度条件下对幅材进行湿热处理,以使幅材收缩50 %以上的面积,在单个纤维的形状和内部结构不发生变化的温度下干燥收缩纤维网,然后在200g / cm 2以上的施加压力下使干燥的纸幅进行热定型。
摘要:
A nonwoven fabric having no pattern and composed of 100% synthetic fibers, wherein individual fibers are held together by three-dimensional entanglement into a stabilized sheet form without being subjected to any bonding treatment, which nonwoven fabric has a structure characterized by a specific volume of the nonwoven fabric of 3.5 cm.sup.3 /g or less, a bending index (in terms of R) of individual fibers of 4.0 or more, and a strength efficiency (in terms of S) of the nonwoven fabric of 90% or more. Such a nonwoven fabric has excellent properties which are comparable to conventional woven fabrics in not only hand but also practical performance characteristics. This nonwoven fabric is manufactured by a method which comprises placing on a substantially smooth supporting member a web, 35 to 170 g/m.sup.2 in basis weight, composed of highly shrinkable synthetic fibers having a potential heat shrinkage of 50% or more, exposing said web to the impact of fine jet streams of water discharged under a pressure of 10 to 35 kg/cm.sup.2, whereby allowing individual fibers to entangle one another, thereafter subjecting the web to wet heat treatment at free length conditions to allow the web to shrink by 50% or more in area, drying the shrunk web at a temperature at which no change takes place in the shape and internal structure of individual fibers, and then subjecting the dried web to heat setting under an applied pressure of 200 g/cm.sup.2 or more.
摘要翻译:一种无图案的无纺织物,由100%的合成纤维组成,其中单个纤维通过三维缠结保持在稳定的片状而不进行任何粘合处理,该无纺织物的特征在于体积比 3.5cm 3 / g以下的无纺布,单纤维的弯曲指数(以R计)为4.0以上,无纺布的强度效率(以S计)为90%以上。 这种非织造布具有优异的性能,与传统的机织织物相比,不仅手工而且具有实用的性能特性。 该无纺织物通过以下方法制造:将基本平滑的支撑构件放置在基重为35〜170g / m 2的纤维网上,所述纤维网由具有50%以上的潜热收缩率的高收缩性合成纤维构成, 对于在10〜35kg / cm 2的压力下排出的细水喷射流的影响,由此允许单个纤维彼此缠结,然后在自由长度条件下对幅材进行湿热处理,以使幅材收缩50 %以上的面积,在单个纤维的形状和内部结构不发生变化的温度下干燥收缩纤维网,然后在200g / cm 2以上的施加压力下使干燥的纸幅进行热定型。
摘要:
A feeding apparatus for a sheet-like material is disclosed wherein means for introducing a rectified liquid stream are oppositely provided on both sides of the inlet portion of a slit type guide passage for the sheet-like material.
摘要:
A method capable of bonding lengthy horizontal plate materials and lengthy vertical plate materials to each other without skill of a worker and with uniform and beautiful finish, and a press-bonding jig used for the method. The press-bonding jig is set at a workbench, which has a vertical wall section for positioning lengthy horizontal plate materials and lengthy vertical plate materials, or at a member disposed around the workbench to press and fix the respective plate materials to each other along edges thereof, comprising a frame having a sufficient length to support the plate materials and holding air cylinders for actuating rubber pads in a pressing direction, and means for starting and stopping the air cylinders. The press-bonding jig is used to made complicated manual fixing operation needless and enables bonding in a short time with a beautiful finish.
摘要:
Surface-modified cellulose acetate filaments having a microporous structure located in the peripheral surface layer thereof are prepared by bringing non-modified cellulose acetate filaments which have an average degree of acetylation of 50 to 62% into contact with an organic solvent which is capable of dissolving or swelling the non-modified filaments and by rapidly evaporating the solvent from the filaments. The microporous structure causes the surface-modified filaments to exhibit a desirable silklike touch and an increased intensity in dye exhaustion of from 1.1 to 2.0 times that of the non-modified filaments.