Surface treatment composition
    15.
    发明授权

    公开(公告)号:US11346052B2

    公开(公告)日:2022-05-31

    申请号:US16679660

    申请日:2019-11-11

    Abstract: A surface treatment composition for paper, board or other fibrous webs. The composition of the invention comprises particles which comprise an active material and a supporting material. The active material comprises a salt of a multivalent metal, such as a divalent or trivalent metal. In accordance with the invention, the supporting material is adapted to release the active material from the particles when subjected to heat and/or pressure and/or a change in pH. Consequently, the active material's adverse effects on the rheology of the composition are avoided while its desired effects on the surface characteristics are retained or enhanced.

    PROCESS FOR TREATING CELLULOSE AND CELLULOSE TREATED ACCORDING TO THE PROCESS
    19.
    发明申请
    PROCESS FOR TREATING CELLULOSE AND CELLULOSE TREATED ACCORDING TO THE PROCESS 有权
    根据工艺处理纤维素和纤维素的方法

    公开(公告)号:US20140073774A1

    公开(公告)日:2014-03-13

    申请号:US14116590

    申请日:2012-05-11

    Abstract: The present invention relates to a process for purifying a slurry comprising cellulose, such as microfibrillated cellulose, wherein the process comprises the following steps: —providing a slurry comprising cellulose and liquid, —subjecting the slurry to an electric field inducing the liquid of the slurry to flow, —separating the liquid from the cellulose thus obtaining a liquid depleted slurry, —adding a washing liquid, such as an organic solvent, to the liquid depleted slurry—subjecting the liquid depleted slurry to an electric field inducing the washing liquid of the slurry to flow and—separating the washing liquid from the cellulose, thus obtaining a purified cellulose. The invention also relates to cellulose such as microfibrillated cellulose obtainable from said process.

    Abstract translation: 本发明涉及一种用于纯化包含纤维素如微纤化纤维素的浆料的方法,其中该方法包括以下步骤: - 提供包含纤维素和液体的浆料, - 将浆料喷射到诱导浆液液体的电场 将液体从纤维素中分离出来,从而获得液体贫化的浆料,并将洗涤液体如有机溶剂加入到液体贫化的浆料中,使得液体贫化的浆料经受电场诱导洗涤液 浆液使洗涤液从纤维素中流出并分离,得到纯化的纤维素。 本发明还涉及可从所述方法获得的纤维素如微纤化纤维素。

    Method for controlling surface contact area of a paper or board substrate
    20.
    发明授权
    Method for controlling surface contact area of a paper or board substrate 有权
    控制纸张或纸板基材表面接触面积的方法

    公开(公告)号:US08455057B2

    公开(公告)日:2013-06-04

    申请号:US12438492

    申请日:2007-08-24

    Abstract: Method for controlling contact area of a paper or board substrate or a product thereof, by depositing electrostatically a trace amount of particles comprising boundary lubricants to form one or more layers on the surface of the substrate. The boundary lubricants are deposited to the target surface solubilized or dispersed in a suitable solvent or carrier. The particles comprise an agent providing one or more effects selected from: lyophilicity, lyophobicity, hydrophobicity, hydrophilicity, lipophilicity, lipophobicity, oleophobicity, oleophilicity, and boundary lubrication. Also, a paper or board substrate treated according to the foregoing method. The use of electrostatic deposition of coating materials described herein gives improved control on contact and surface characteristics.

    Abstract translation: 通过静电沉积含有边界润滑剂的微量颗粒以在基材表面上形成一层或多层来控制纸或板基材或其产品的接触面积的方法。 边界润滑剂沉积到溶解或分散在合适的溶剂或载体中的目标表面上。 颗粒包含提供一种或多种作用的试剂,其选自:亲液性,疏液性,疏水性,亲水性,亲油性,脂质疏油性,疏油性,亲油性和边界润滑。 另外,根据上述方法处理的纸或板基板。 使用本文所述的涂层材料的静电沉积可以改善对接触和表面特性的控制。

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