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    • 3. 发明申请
    • SURGICAL SWAB COMPOSED OF NON-WOVEN FABRIC AND TEXTILE POLYMER NET
    • 非织造织物和纺织聚酯网组合的手套
    • WO2016042429A1
    • 2016-03-24
    • PCT/IB2015/056392
    • 2015-08-24
    • BASTOS VIEGAS, S.A.
    • VIEGAS NIETO GUIMARÃES, Luis Salvador
    • A61F13/20A61F13/36A61F13/38D04H1/4374
    • A61F13/36A61F13/2082A61F13/38D04H1/4334D04H1/435D04H1/4374D04H1/555
    • The present application describes a surgical swab composed of two or more outer layers made of non-woven fabric and an inner layer of a textile polymer net, with or without x-ray detectable thread, which can be obtained, for example, by a process of knitting or weaving. The textile net can present in its composition materials with high elasticity such as elastane or alternatively combinations of materials that allow shrinking after heat treatment such as the polyamide or polyamide and polyester or even polyamide and cotton. In the present application, it is also described the production process of this surgical swab which, after the junction and overlapping of the non-woven fabric layers and the inner layer of textile polymer net, comprises ultrasound welding of the layers. The surgical swabs of this application present improved performance features and the production process involved is simple, economical and automated.
    • 本申请描述了由无纺布制成的两个或更多个外层和纺织聚合物网的内层组成的手术拭子,其具有或不具有x射线可检测线,其可以例如通过方法 针织或编织。 纺织网可以在其组成材料中具有高弹性,例如弹性纤维或者可替代地组合的材料,其允许热处理后的收缩,例如聚酰胺或聚酰胺,聚酯,甚至聚酰胺和棉。 在本申请中,还描述了这种手术拭子的生产过程,其在无纺布层和织物聚合物网的内层的接合和重叠之后包括层的超声波焊接。 该应用的手术拭子具有改进的性能特征,所涉及的生产工艺简单,经济且自动化。
    • 9. 发明申请
    • ポリイミド不織布およびその製造方法
    • 聚酰亚胺非织造织物及其生产方法
    • WO2007148674A1
    • 2007-12-27
    • PCT/JP2007/062277
    • 2007-06-19
    • 東洋紡績株式会社中森 雅彦前田 郷司北河 享小林 久人大田 康雄
    • 中森 雅彦前田 郷司北河 享小林 久人大田 康雄
    • D04H1/42B01D39/16D04H1/72
    • D04H3/16D01D5/0038D01F6/74D04H1/42D04H1/4334D04H1/4382D04H1/72Y10T442/626
    • The invention provides a nonwoven fabric which exhibits excellent heat resistance, mechanical strength and dimensional stability under heat even in applications accompanied with the exposure to high temperature and has an extremely large surface area and high filter performance. The fabric is made of polyimide fibers which are prepared from a raw material comprising as the essential components an aromatic tetracarboxylic acid and antissu non tissé de péo aromatic diamine having a benzoxazole structure through polycondensation and have fiber diameters of 0.001 to 1µm. This fabric can be produced by a process which comprises the step of forming a polyimide precursor nonwoven fabric by charge-spinning a polyamic acid prepared from a raw material comprising as the essential components an aromatic tetracarboxylic acid and an aromatic diamine having a benzoxazole structure through polycondensation and the step of subjecting the polyimide precursor fibers constituting the obtained precursor nonwoven fabric to imidation.
    • 本发明提供一种非织造布,其即使在伴随着高温暴露的应用中也具有优异的耐热性,机械强度和尺寸稳定性,并且具有非常大的表面积和高的过滤性能。 织物由聚酰亚胺纤维制成,其由包含作为必需成分的芳香族四羧酸的原料制成,并且通过缩聚具有苯并恶唑结构的抗非织造性芳族二胺,并且纤维直径为0.001〜1μm。 该织物可以通过以下方法制造,该方法包括以下步骤:通过将由原料制成的聚酰胺酸进行电纺纺丝而形成聚酰亚胺前体非织造布,所述原料包含芳族四羧酸和具有苯并恶唑结构的芳族二胺通过缩聚反应 以及将构成所得到的前体无纺布的聚酰亚胺前体纤维进行酰亚胺化的工序。