专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO1998007922A1 METHOD FOR LOWERING THE LEVEL OF OXALIC ACID 审中-公开
标题翻译：降低酸性水平的方法
公开(公告)号：WO1998007922A1
公开(公告)日：1998-02-26
申请号：PCT/SE1997001365
申请日：1997-08-20
申请人： STFI , NILVEBRANT, Nils-Olov , REIMANN, Anders , DE SOUSA, Filipe
发明人： STFI
IPC分类号： D21C09/10
CPC分类号： D21C9/008 , D21C5/005
摘要： One or several oxalic acid or oxalate decomposing enzymes are used to lower the concentration of oxalic acid and/or oxalate precipitates in the production of pulp and paper. The method is particularly useful in processes using oxidative bleaching and in particular in processes where the process liquids are recirculated within the plant. Thus the forming of incrusts and sediments, comprising sparingly soluble oxalate compounds, is reduced or prevented.
摘要翻译：一种或多种草酸或草酸盐分解酶用于降低纸浆和纸浆生产中草酸和/或草酸盐沉淀物的浓度。该方法在使用氧化漂白的方法中特别有用，特别是在工艺液体在工厂内再循环的方法中。因此，减少或防止包含微溶草酸盐化合物的结垢和沉积物的形成。

2. 发明申请

WO1997032196A1 DETERMINATION OF GLOSS QUALITY 审中-公开
标题翻译：确定谷物品质
公开(公告)号：WO1997032196A1
公开(公告)日：1997-09-04
申请号：PCT/SE1997000135
申请日：1997-01-29
申请人： STFI , JOHANSSON, Per-Åke , LINDSTRAND, Mikael
发明人： STFI
IPC分类号： G01N21/57
CPC分类号： G01N21/57
摘要： A method and apparatus for obtaining a basis on which the gloss quality of a sample surface of a sample, such as a paper sheet, can be determined by illuminating the sample surface and registering the intensity of the reflected light. With the intention of enabling several different types of gloss variation investigations to be made on a sample surface essentially in accordance with known principles of gloss facet approximation, it is proposed, among other things, that the sample surface (80) is exposed in an image registering area (44) by controlled rotary movement of the sample surface through the image registering area or by controlled rotary movement of the image registering area over the sample surface, wherein the intensity of the light reflected from a plurality of spatially well defined part-surfaces of the sample surface is registered several times during this rotary movement while, at the same time, determining the positions of the part-surfaces in the image registering area (44), and in turn the viewing angle, so as to establish what we here define as an image volume which is representative of the registered light intensity as a function of the position of the part-surfaces within the sample surface and of the respective viewing angle.
摘要翻译：通过照射样品表面并记录反射光的强度，可以确定样品例如纸张的样品表面的光泽度的基础的方法和装置。为了实现基本上根据已知的光泽面近似原理在样品表面上进行几种不同类型的光泽变化的研究，提出了将样品表面（80）暴露在图像中记录区域（44），其通过所述样品表面通过所述图像配准区域的受控旋转运动或通过所述图像配准区域在所述样品表面上的受控旋转运动，其中从多个空间良好限定的部分表面反射的光的强度在该旋转运动期间多次登记样品表面，同时确定图像配准区域（44）中的部分表面的位置，然后确定视角，从而确定我们在这里定义为表示作为样品表面内的部分表面的位置的函数的注册光强度的图像体积，o f各自的视角。

3. 发明申请

WO1991019040A1 A METHOD OF MANUFACTURING PULP 审中-公开
标题翻译：制造PULP的方法
公开(公告)号：WO1991019040A1
公开(公告)日：1991-12-12
申请号：PCT/SE1991000407
申请日：1991-06-07
申请人： STFI , ENGSTRAND, Per , HTUN, Myat , SVENSSON, Eva , SVENSSON, Börje , JANSSON, Ulla
发明人： STFI
IPC分类号： D21B01/02
CPC分类号： D21B1/021 , A61C8/0048
摘要： A method of producing pulp of high light-scattering ability and low shive content by refining wood material. The wood material is subjected to a gas-phase sulphonation process prior to complete refinement of the wood material, suitably prior to the refinement as such. Prior to or after the sulphonation, the wood material is subjected to a treatment known per se, to introduce alkaline metal ions as counter ions to the acidic groups of the wood.
摘要翻译：通过精炼木材生产高光散射能力和低叶片含量的纸浆的方法。在木材材料的完全细化之前，木材材料经受气相磺化过程，适当地在细化之前进行。在磺化之前或之后，对木材进行本身已知的处理，以将碱金属离子作为抗衡离子引入木材的酸性基团。

4. 发明申请

WO1989010998A1 METHOD OF MAKING MECHANICAL AND CHEMI-MECHANICAL PAPERMAKING PULP 审中-公开
标题翻译：制造机械和机械造纸纸浆的方法
公开(公告)号：WO1989010998A1
公开(公告)日：1989-11-16
申请号：PCT/SE1989000172
申请日：1989-04-05
申请人： STFI , ENGSTRAND, Per, Ossian , HAMMAR, Lars-Åke , HTUN, Myat, Thoung , PETTERSSON, Rune, Lennart , SVENSSON, Börje, Nils
发明人： STFI
IPC分类号： D21B01/12
CPC分类号： D21B1/12 , D21B1/16
摘要： The invention relates to a method of manufacturing mechanical and chemi-mechanical papermaking pulp with low energy input by disintegrating and beating wood material in at least two steps. According to the invention, the material is coarse-disintegrated in a first step at a concentration exceeding 20 %, acid groups in the wood material are neutralized, the material is diluted to a concentration of 1-10 % and beaten in one or several steps.
摘要翻译：本发明涉及通过在至少两个步骤中分解和打浆木材来制造具有低能量输入的机械和化学机械造纸纸浆的方法。根据本发明，材料在第一步骤中以超过20％的浓度进行粗分解，木材中的酸基被中和，将材料稀释至1-10％的浓度，并以一个或多个步骤殴打。

5. 发明申请

WO1997017177A1 PROCESS FOR MAKING WOOD CHIPS 审中-公开
标题翻译：制作木制工艺
公开(公告)号：WO1997017177A1
公开(公告)日：1997-05-15
申请号：PCT/SE1996001398
申请日：1996-10-31
申请人： STFI , UHMEIER, Andreas
发明人： STFI
IPC分类号： B27L11/00
CPC分类号： B27L11/02 , B27L11/00
摘要： Process for the manufacturing of wood chips as raw material in the production of mechanical pulp in order to reduce the energy consumption in the production of pulp, characterized in that the wood fibres, including the summerwood fibres, are irreversibly deformed across the grain, i.e. in a direction perpendicular to the longitudinal axis of the fibres. Preferably this is done through mechanical treatment with one or several tools, arranged so that the forces created in the treatment act in a direction substantially perpendicular to the longitudinal axis of the fibres.
摘要翻译：制造木屑作为生产机械纸浆原料的方法，以减少纸浆生产中的能源消耗，其特征在于包括夏木纤维在内的木纤维在整个谷物上不可逆地变形，即在垂直于纤维纵轴的方向。优选地，这是通过用一个或多个工具进行机械处理而完成的，其布置成使得在处理中产生的力在基本上垂直于纤维的纵向轴线的方向上作用。

6. 发明申请

WO1992005423A1 METHOD AND APPARATUS FOR MEASURING FIBRE FLEXIBILITY 审中-公开
标题翻译：用于测量纤维柔性的方法和装置
公开(公告)号：WO1992005423A1
公开(公告)日：1992-04-02
申请号：PCT/SE1991000642
申请日：1991-09-25
申请人： STFI , FRANSSON, Per-Ivar , KARLSSON, Håkan , KASTRE, Lehard
发明人： STFI
IPC分类号： G01N15/02
CPC分类号： G01N15/1475 , G01N1/38 , G01N11/00 , G01N15/147 , G01N33/343 , G01N2015/0057
摘要： A method for measuring the flexibility of fibres, particularly cellulose fibres, in a flowing suspension. The fibre form of a large number of fibres is registered at two different pictures of suspension flow. A predefined fibre form is calculated for each flow picture, and a relationship, for example the quotient between two measurements of mean fibre form is determined and utilized to define fibre flexibility. The invention also relates to an arrangement for carrying out the inventive method, wherein the arrangement includes a flowthrough container (20) through which the suspension flows, a transparent window (26) mounted in the container wall, a CCD-type camera (30) which functions to photograph fibres passing the window, a picture analysis unit (34) coupled to the camera (30), and a data processing unit (36) for processing information obtained from the picture analysis unit (34).
摘要翻译：用于测量流动悬浮液中纤维，特别是纤维素纤维的柔韧性的方法。大量纤维的纤维形式记录在悬浮液流动的两个不同图片上。为每个流动图像计算预定义的纤维形式，并且确定关系，例如平均纤维形式的两次测量之间的商，并用于定义纤维柔性。本发明还涉及一种用于实施本发明的方法的装置，其中，该装置包括悬挂液流过的流过容器（20），安装在容器壁上的透明窗（26），CCD型照相机（30）用于拍摄通过窗口的光纤，耦合到相机（30）的图像分析单元（34），以及用于处理从图像分析单元（34）获得的信息的数据处理单元（36）。

7. 发明申请

WO1996010738A1 METHOD FOR DETERMINATION OF FILLER CONTENT IN PAPER 审中-公开
标题翻译：纸张中填充物含量的测定方法
公开(公告)号：WO1996010738A1
公开(公告)日：1996-04-11
申请号：PCT/SE1995001091
申请日：1995-09-25
申请人： STFI , FRANSSON, Per-Ivar , GRANLÖF, Lars , HAGBERG, Mats , JEGEBÄCK, Matts
发明人： STFI
IPC分类号： G01N15/06
CPC分类号： D21G9/0027
摘要： A method of determining the filler content of paper, wherein the paper stock is examined prior to delivering the stock to the de-watering section of the paper machine, and wherein the volume concentration of particles in the stock that have a size which is greater than the characteristic size of the filler is determined at varying mechanical working of the pulp, and the amount of filler retained in the paper is predicted from the result of at least two such determinations.
摘要翻译：一种确定纸张的填料含量的方法，其中在将原料输送到造纸机的脱水部分之前检查纸料，并且其中所述原料中的颗粒的体积浓度具有大于在纸浆的变化的机械加工下确定填料的特征尺寸，并根据至少两次此类测定的结果预测保留在纸中的填料量。

8. 发明申请

WO1991007653A1 A METHOD AND APPARATUS FOR DETECTING BARK AND FOR DETERMINING THE DEGREE OF BARKING ON WOOD AND CHIPS 审中-公开
标题翻译：用于检测唛头和确定木材和筷子上的烙印程度的方法和装置
公开(公告)号：WO1991007653A1
公开(公告)日：1991-05-30
申请号：PCT/SE1990000728
申请日：1990-11-09
申请人： STFI , JOHANSSON, Lennart , RINGSTRÖM, Leif
发明人： STFI
IPC分类号： G01N21/84
CPC分类号： G01N33/46 , G01N21/8986 , G01N33/34 , G01N2021/8887 , G01N2201/102
摘要： The present invention relates to a method and to an apparatus for detecting the presence of bark and for determining the barking degree of wood or chips. Accordingly, the apparatus includes a light source (12) which directs a concentrated light beam (14) onto the measurement object (16), for instance a log which is moved continuously in a transport chute (20). The shape and/or size of the light image obtained on the log (16) at the point (18) on which the light beam (14) impinges on the log is detected with the aid of a camera (10), preferably a CCD-camera. The shape and/or size of the light image is mutually different for wood and bark. The detection values obtained by the CCD-camera (10) are evaluated in a processing means.
摘要翻译：本发明涉及一种用于检测树皮的存在和用于确定木材或碎屑的吠叫程度的方法和装置。因此，该装置包括将集中的光束（14）引导到测量对象（16）上的光源（12），例如在运输斜槽（20）中连续移动的对数。借助于照相机（10），优选CCD（16）检测在光束（14）上照射在原木上的点（18）处在原木（16）上获得的光图像的形状和/或尺寸， -相机。对于木材和树皮，光图像的形状和/或尺寸是相互不同的。由CCD摄像机（10）获得的检测值在处理装置中进行评估。

9. 发明申请

WO1987006280A1 METHOD OF REDUCING THE ENERGY CONSUMPTION AT THE REFINING OF CELLULOSE-CONTAINING MATERIAL 审中-公开
标题翻译：减少含细菌材料的能源消耗的方法
公开(公告)号：WO1987006280A1
公开(公告)日：1987-10-22
申请号：PCT/SE1987000193
申请日：1987-04-15
申请人： STFI , ENGSTRAND, Per, Ossian , HTUN, Myat, Thoung , HAMMAR, Lars-Ake , PETTERSSON, Rune, Lennart
发明人： STFI
IPC分类号： D21B01/16
CPC分类号： D21B1/16 , D21D1/20
摘要： Method of reducing the energy consumption at the refining/beating of cellulose-containing material by the addition of alkali to the material for neutralizing acid groups bonded to the fibre wall. According to the invention, the pH-value in the pulp suspension is measured at the refiner outlet, the alkali is added in an amount depending on the measured pH value for neutralization without excess in the beating zone or immediately before the material enters the same, in an amount of 0.05-9 kg/ton, preferably 0.5-5 kg /ton, suitably 1-4 kg/ton, calculated as NaOH.

10. 发明申请

WO1996028606A1 PROCESS FOR PRODUCING SHORT-FIBERED SOFTWOOD PULPS 审中-公开
标题翻译：生产短纤维软木浆的方法
公开(公告)号：WO1996028606A1
公开(公告)日：1996-09-19
申请号：PCT/SE1996000284
申请日：1996-03-04
申请人： STFI , MOHLIN, Ulla-Britt , PETTERSSON, Bert
发明人： STFI
IPC分类号： D21C09/00
CPC分类号： D21C9/001 , D21C5/005
摘要： Process for utilizing softwood pulp for the production of paper and board, where essential product properties, e.g. a good print quality are obtained by controlling the fibre length distribution of the pulp through enzymatic treatment, followed by a mechanical or other equivalent treatment of the fibres.
摘要翻译：用于生产纸和纸板的软木纸浆的方法，其中基本产品特性通过酶处理控制纸浆的纤维长度分布，然后对纤维进行机械或其它等效处理，获得良好的印刷质量。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式