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    METHOD AND APPARATUS FOR THE DEACIDIFICATION OF LIBRARY MATERIALS
    1.
    发明授权
    METHOD AND APPARATUS FOR THE DEACIDIFICATION OF LIBRARY MATERIALS 失效
    方法和装置脱酸图书资料

    公开(公告)号：EP0874939B1

    公开(公告)日：2001-08-16

    申请号：EP97901427.1

    申请日：1997-01-16

    申请人： Preservation Technologies L.P.

    发明人： LEINER, Lee, H. ,  BURD, James, E.

    IPC分类号： D21H25/18

    CPC分类号： D21H25/18

    摘要： A method and apparatus (10) are provided for deacidifying cellulose based materials (60), especially books, magazines, and other bound or folded cellulose materials having a spine (62). The method includes contacting the materials with a treating medium and producing relative movement at a predetermined velocity between the materials (60) and the treating medium in a direction generally parallel to the spine (62) of the materials (60) and, preferably simultaneously, directing the treating medium by means of a spray toward the materials (60) in a direction generally perpendicular to the spine (62) of the material (60) for a period of time effective for the treating medium to contact substantially all of the material (60). Following treatment, any excess treating medium is removed from the material (60) and directing any such removed treating medium to a holding tank (72) for reuse later. The movement in a parallel direction is achieved by reciprocating the materials (60) through a tank (12) filled with treating medium. In addition, the materials (60) may be rotated about a central axis of the treatment tank (12). The preferred embodiment of the present invention includes an apparatus (10) consisting of a treating tank (12) for containing the treating medium, a plurality of material holders (40) disposed in the tank on a reciprocatable and rotatable shaft (30), and spray nozzles (50) for producing the perpendicular movement of the treating medium relative to the spine (62) of the material (60).

    DEACIDIFICATION OF CELLULOSE BASED MATERIALS USING HYDROFLUOROETHER CARRIERS
    3.
    发明公开
    DEACIDIFICATION OF CELLULOSE BASED MATERIALS USING HYDROFLUOROETHER CARRIERS 有权
    纤维素基材料用加氢氟油载体脱酸

    公开(公告)号：EP1068395A1

    公开(公告)日：2001-01-17

    申请号：EP99914148.4

    申请日：1999-03-25

    申请人： Preservation Technologies L.P.

    发明人： LEINER, Lee, H. ,  BURD, James, E. ,  GAYDOS, Robert, M.

    IPC分类号： D21H25/18

    CPC分类号： D21H25/18 ,  D21H17/06 ,  D21H17/11 ,  D21H17/64 ,  D21H21/24

    摘要： An improved method of deacidifying books, imaged paper and other imaged materials having a cellulose base wherein, for a sufficient time to raise the pH of the materials, the materials are treated with alkaline particles of a basic metal oxide, hydroxide or salt dispersed in a hydrofluoroether carrier, alone, or in combination with a perfluorinated carrier. A surfactant is added.

    摘要翻译： 使书籍，成像纸和其他成像材料具有纤维素基质的脱酸方法的改进方法，其中为了提高材料的pH值足够的时间，材料用碱性金属氧化物，氢氧化物或盐的碱性颗粒处理，所述碱性金属氧化物，氢氧化物或盐分散在 氢氟醚载体，单独或与全氟化载体组合。 添加表面活性剂。