Paper-making process with regenerated chitin fibers
    1.
    发明授权
    Paper-making process with regenerated chitin fibers 失效
    造纸过程与再生几丁质纤维

    公开(公告)号:US4392916A

    公开(公告)日:1983-07-12

    申请号:US351636

    申请日:1982-02-23

    摘要: The invention provides a novel method for making paper of regenerated chious fibers without the use of any binder materials. By virtue of the inherent physiological inertness of the chitinous fibers and the absence of any binder materials, the paper obtained by the inventive method is advantageously used in medical treatment in contact with living body tissues. The principle of the method is that the chitinous fibers prepared by a wet spinning process are never brought into a dry condition or always kept wet with water down to the step of sheet making so that the self-bonding power of the fibers by the hydrogen bonding is never decreased and a chitinous paper with sufficient strengths can be prepared without a binder material. Alternatively, once dried chitinous fibers can be treated with a hydrogen-bond forming agent, e.g. urea, so that the sheet making is equally successful without the use of a binder material.

    摘要翻译: 本发明提供了不使用任何粘合剂材料制造再生几丁质纤维纸的新方法。 由于几丁质纤维的固有生理惰性和不存在任何粘合剂材料,通过本发明方法获得的纸有利地用于与生物体组织接触的医疗中。 该方法的原理是通过湿纺丝方法制备的壳多糖纤维不会进入干燥状态,或者始终保持用水润湿直至制片步骤,使得通过氢键的纤维的自粘合力 不会减少,并且可以在没有粘合剂材料的情况下制备具有足够强度的几丁质纸。 或者,一旦干燥的几丁质纤维可以用氢键形成剂,例如, 尿素,使得片材制造同样成功,而不使用粘合剂材料。

    Fibrous binder and a method for the preparation thereof
    5.
    发明授权
    Fibrous binder and a method for the preparation thereof 失效
    纤维粘合剂及其制备方法

    公开(公告)号:US4744830A

    公开(公告)日:1988-05-17

    申请号:US935203

    申请日:1986-11-26

    摘要: The invention provides a fibrous binder capable of exhibiting a bonding ability in a dry condition for fibers having no self-adhesiveness in paper making but capable of imparting the paper made by use of the same with disintegrability into discrete fibers in a wet condition so that the paper is disposable in water. The fibrous binder is prepared by wet-spinning of an aqueous dope containing a water-soluble salt, e.g. sodium salt, of alginic acid and an alkyleneglycol ester of alginic acid in a specified proportion into a coagulation bath containing a water-soluble salt of certain metals, e.g. calcium, of which the ions are replaceable with the sodium ions of the water-soluble salt of alginic acid to convert the acid into a water-insoluble salt so as to form a water-insoluble gel in a fibrous form of a blend composed of the water-insoluble metal salt of alginic acid and the alkyleneglycol ester of alginic acid.

    摘要翻译: 本发明提供了一种纤维粘合剂,其能够在干燥条件下对造纸中没有自粘性的纤维表现出粘合能力,但能够在湿润状态下将其使用具有崩解性的纸赋予离散纤维, 纸是一次性的在水中。 纤维粘合剂通过将含有水溶性盐的水溶液湿法纺丝制备, 钠盐,海藻酸和藻酸的亚烷基二醇酯以特定比例加入到含有某些金属的水溶性盐的凝固浴中, 钙,其中离子可与藻酸的水溶性盐的钠离子替代,以将酸转化成不溶于水的盐,以形成纤维形式的共混物,其由 藻酸的水不溶性金属盐和藻酸的亚烷基二醇酯。