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    Method of controlling retention and an intermediate product used in the method
    1.
    发明授权
    Method of controlling retention and an intermediate product used in the method 有权
    方法中使用的保留方法和中间产物

    公开(公告)号：US09157189B2

    公开(公告)日：2015-10-13

    申请号：US14344107

    申请日：2012-09-12

    申请人： Isto Heiskanen ,  Risto Laitinen ,  Jari Räsänen

    发明人： Isto Heiskanen ,  Risto Laitinen ,  Jari Räsänen

    IPC分类号： D21H21/16 ,  D21H11/18 ,  D21H15/02 ,  D21H17/17 ,  D21H17/28 ,  D21H17/29 ,  D21H17/55 ,  D21H17/00 ,  D21H21/10 ,  D21H21/18 ,  D21H21/20 ,  D21H21/52

    CPC分类号： D21H21/16 ,  D21H11/18 ,  D21H15/02 ,  D21H17/17 ,  D21H17/28 ,  D21H17/29 ,  D21H17/55 ,  D21H17/72 ,  D21H21/10 ,  D21H21/18 ,  D21H21/20 ,  D21H21/52

    摘要： The invention provides a method of controlling retention on a forming fabric in a paper making process, an intermediate product for use in the method, as well as use of material for the intermediate product. For making the intermediate product at least one paper making chemical is added to a slurry of fine cellulose fibres such as micro fibrillated cellulose (MFC), the specific surface area of those fibres being larger than that of the fibres of the main fibrous suspension for paper making, causing the paper making chemical being adsorbed on the fine cellulose fibres. This intermediate product is then incorporated in the main fibrous suspension before the suspension is supplied from the paper machine head box to the forming fabric. Other paper making chemicals may be added to the fibrous suspension before or after addition of the intermediate product, so that interactions between different chemicals are prevented. The invention permits an increased retention in general as well as improved control of retention of paper making chemicals separately and/or in relation to each other.

    摘要翻译： 本发明提供一种在造纸过程中控制成形织物上的保留性的方法，用于该方法的中间产品以及用于中间产品的材料。 为了制造中间产品，将至少一种造纸化学品添加到细纤维素纤维如微纤维化纤维素（MFC）的浆料中，那些纤维的比表面积大于纸张的主要纤维悬浮液的纤维的比表面积 使造纸化学品吸附在细纤维素纤维上。 然后在将悬浮液从造纸机头箱供给到成形织物之前，将该中间产品并入主纤维悬浮液中。 在加入中间产物之前或之后，可以将其它造纸化学品加入到纤维悬浮液中，从而防止不同化学物质之间的相互作用。 本发明允许增加保留率，并且分别改善和/或相互关联地改进造纸化学品保留的控制。

    METHOD OF CONTROLLING RETENTION AND AN INTERMEDIATE PRODUCT USED IN THE METHOD
    2.
    发明申请
    METHOD OF CONTROLLING RETENTION AND AN INTERMEDIATE PRODUCT USED IN THE METHOD 有权
    控制方法和方法中使用的中间产品

    公开(公告)号：US20140345816A1

    公开(公告)日：2014-11-27

    申请号：US14344107

    申请日：2012-09-12

    申请人： Isto Heiskanen ,  Risto Laitinen ,  Jari Räsänen

    发明人： Isto Heiskanen ,  Risto Laitinen ,  Jari Räsänen

    IPC分类号： D21H21/16

    CPC分类号： D21H21/16 ,  D21H11/18 ,  D21H15/02 ,  D21H17/17 ,  D21H17/28 ,  D21H17/29 ,  D21H17/55 ,  D21H17/72 ,  D21H21/10 ,  D21H21/18 ,  D21H21/20 ,  D21H21/52

    摘要： The invention provides a method of controlling retention on a forming fabric in a paper making process, an intermediate product for use in the method, as well as use of material for the intermediate product. For making the intermediate product at least one paper making chemical is added to a slurry of fine cellulose fibres such as micro fibrillated cellulose (MFC), the specific surface area of those fibres being larger than that of the fibres of the main fibrous suspension for paper making, causing the paper making chemical being adsorbed on the fine cellulose fibres. This intermediate product is then incorporated in the main fibrous suspension before the suspension is supplied from the paper machine head box to the forming fabric. Other paper making chemicals may be added to the fibrous suspension before or after addition of the intermediate product, so that interactions between different chemicals are prevented. The invention permits an increased retention in general as well as improved control of retention of paper making chemicals separately and/or in relation to each other.

    摘要翻译： 本发明提供一种在造纸过程中控制成形织物上的保留性的方法，用于该方法的中间产品以及用于中间产品的材料。 为了制造中间产品，将至少一种造纸化学品添加到细纤维素纤维如微纤维化纤维素（MFC）的浆料中，那些纤维的比表面积大于纸张的主要纤维悬浮液的纤维的比表面积 使造纸化学品吸附在细纤维素纤维上。 然后在将悬浮液从造纸机头箱供给到成形织物之前，将该中间产品并入主纤维悬浮液中。 在加入中间产物之前或之后，可以将其它造纸化学品加入到纤维悬浮液中，从而防止不同化学物质之间的相互作用。 本发明允许增加保留率，并且分别改善和/或相互关联地改进造纸化学品保留的控制。