公开(公告)号：WO2009123560A1

公开(公告)日：2009-10-08

申请号：PCT/SE2009/050355

申请日：2009-04-03

Applicant: STFI-PACKFORSK AB ,  ANKERFORS, Mikael ,  LINDSTRÖM, Tom ,  HOC, Miroslav ,  SONG, Hainong

Inventor： ANKERFORS, Mikael ,  LINDSTRÖM, Tom ,  HOC, Miroslav ,  SONG, Hainong

IPC: D21H21/16 ,  D21H11/18 ,  D21H19/54 ,  D21H21/18 ,  B82B1/00 ,  D21H27/38

CPC classification number: D21H11/18 ,  C08L1/02 ,  C08L3/04 ,  C08L2205/16 ,  C09D101/02 ,  C09D103/02 ,  C09D103/04 ,  C09D103/06 ,  C09D103/08 ,  C09D103/10 ,  C09D105/00 ,  C09D105/04 ,  C09D105/06 ,  C09D105/12 ,  D21H17/25 ,  D21H17/28 ,  D21H19/10 ,  D21H19/54 ,  D21H19/824 ,  D21H21/16 ,  D21H21/18 ,  D21H27/38 ,  Y10T428/31971 ,  Y10T428/31975 ,  Y10T428/31978 ,  Y10T428/31982 ,  Y10T428/31986 ,  Y10T428/31993 ,  C08L2666/26 ,  C08L3/02 ,  C08L3/06 ,  C08L3/08 ,  C08L3/10 ,  C08L5/00 ,  C08L5/06 ,  C08L5/04 ,  C08L5/12

Abstract: The invention relates to compositions for coating of printing paper, said compositions comprising microfibrillated cellulose (MFC) and one or more polysaccharide hydrocolloids, and use of said compositions. Further, the invention relates to coated paper, comprising a first layer of polysaccharide hydrocolloid(s) and a second layer of MFC, and use of said paper. A method for reducing the linting and/or dusting of a paper is also disclosed.

Abstract translation: 本发明涉及用于涂布印刷纸的组合物，所述组合物包含微纤化纤维素（MFC）和一种或多种多糖水胶体，以及所述组合物的用途。 此外，本发明涉及涂覆纸，其包含第一层多糖水胶体和第二层MFC，以及所述纸的使用。 还公开了一种用于减少纸张的褪色和/或除尘的方法。

公开(公告)号：WO2009008814A1

公开(公告)日：2009-01-15

申请号：PCT/SE2008/050806

申请日：2008-06-30

Applicant: STFI, SKOGSINDUSTRINS TEKNISKA FORSNINGSINSTITUT AB ,  SÖDERBERG, Daniel

Inventor： SÖDERBERG, Daniel

IPC: G01P3/80 ,  D21F1/06

CPC classification number: D21G9/0027 ,  G01P3/806 ,  G01P13/02 ,  G01S11/12

Abstract: Device (100) for measuring the two-dimensional velocity of a moving paper web (140) having opposed first and second surfaces, characterized in comprising: at least one light source (120) directed at said first surface and arranged to transmit light through said paper web (140); at least one image capturing device (110) directed at said second surface, and arranged to receive said transmitted light and produce a two-dimensional image of a section of said paper web (140); a control unit (130), arranged to control said at least one light source (120) and at least one image capturing device (110), and to receive two-dimensional images from said at least one image capturing device (110), and comprising computation means (150) arranged to compute the velocity component of said paper web (140) in the machine direction and/or the cross direction by calculating the cross correlation of two two-dimensional images.

Abstract translation: 用于测量具有相对的第一和第二表面的移动纸幅（140）的二维速度的装置（100），其特征在于包括：至少一个光源（120），其指向所述第一表面并被布置成透过所述 纸幅（140）; 至少一个图像捕获装置（110），其指向所述第二表面，并被布置成接收所述透射光并产生所述纸幅（140）的一部分的二维图像; 控制单元（130），被布置成控制所述至少一个光源（120）和至少一个图像捕获设备（110），并且从所述至少一个图像捕获设备（110）接收二维图像;以及 包括计算装置（150），其被布置为通过计算两个二维图像的互相关度来计算所述纸幅（140）在机器方向和/或横向上的速度分量。

公开(公告)号：WO2007131794A3

公开(公告)日：2008-03-06

申请号：PCT/EP2007004392

申请日：2007-05-16

Applicant: BAM ,  STFI E V ,  HABEL WOLFGANG ,  KREBBER KATERINA ,  THIELE ELKE ,  ARNOLD ROLF ,  GLOETZL RAINER

Inventor： HABEL WOLFGANG ,  KREBBER KATERINA ,  THIELE ELKE ,  ARNOLD ROLF ,  GLOETZL RAINER

IPC: G01M11/08

CPC classification number: E02B3/122 ,  D04B21/16 ,  D10B2403/02431 ,  D10B2505/204 ,  E02B3/10 ,  G01D5/35364 ,  G01M11/086

Abstract: A reinforcement element, comprises at least one sensor fiber adapted for strain measurements based on stimulated Brillouin scattering within said sensor fiber. Furthermore, a system for monitoring strain within a structure comprises a reinforcement element comprising at least one sensor fiber adapted for strain measurements based on stimulated Brillouin scattering within said sensor fiber, a pump laser for coupling in laser radiation of a pump frequency into said at least one sensor fiber, a Stokes laser for coupling in laser radiation of a Stokes laser radiation into said at least one sensor fiber, wherein the pump frequency and the Stokes frequency are different from one another and wherein the frequency difference between the pump and Stokes frequencies is within the range of acoustical phonons within said sensor fiber, a sensor adapted to obtain a stimulated Brillouin backscattering signal, and a network analyzer adapted for determining the complex transfer function of the sensor fiber to determine a spatially resolved strain measurement.

Abstract translation: 增强元件包括至少一个适于基于所述传感器光纤内受激布里渊散射的应变测量的传感器光纤。 此外，用于监测结构内的应变的系统包括加强元件，该加强元件包括适于基于所述传感器光纤内的受激布里渊散射的应变测量的至少一个传感器光纤，用于将泵浦频率的激光辐射耦合到所述至少一个 一个传感器光纤，斯托克斯激光器，用于将斯托克斯激光辐射的激光辐射耦合到所述至少一个传感器光纤中，其中泵浦频率和斯托克斯频率彼此不同，并且其中泵和斯托克斯频率之间的频率差为 在所述传感器光纤内的声学声子的范围内，适于获得受激布里渊后向散射信号的传感器和适用于确定传感器光纤的复数传递函数以确定空间分辨应变测量的网络分析仪。

公开(公告)号：WO2007091942A1

公开(公告)日：2007-08-16

申请号：PCT/SE2007/000082

申请日：2007-01-31

Applicant: STFI-PACKFORSK AB ,  LINDSTRÖM, Tom ,  ANKERFORS, Mikael ,  HENRIKSSON, Gunnar

Inventor： LINDSTRÖM, Tom ,  ANKERFORS, Mikael ,  HENRIKSSON, Gunnar

IPC: D21C9/00 ,  D21H11/20

CPC classification number: D21C5/005 ,  D21H11/18

Abstract: The present invention provides a method for treatment of chemical pulp for the manufacturing of microfibrillated cellulose comprising the following steps: a) providing a hemicellulose containing pulp, b) refining said pulp in at least one step and treating said pulp with one or more wood degrading enzymes at a relatively low enzyme dosage, and c) homogenizing said pulp thus providing s aid microfibrillated cellulose. According to a second aspect of the invention a microfibrillated cellulose obtainable by the method according to the first aspect is provided . According to a third aspect of the invention, use of said microfibrillated cellulose according to the second aspect in food products, paper products, composite materials, coatings or in rheology modifiers (e.g. drilling muds) is provided .

Abstract translation: 本发明提供了一种用于处理微纤化纤维素的化学纸浆的方法，包括以下步骤：a）提供含有半纤维素的纸浆，b）至少在一个步骤中精炼所述纸浆并用一种或多种木材降解处理所述纸浆 在较低酶剂量下的酶，和c）均化所述纸浆，从而提供辅助微纤化纤维素。 根据本发明的第二方面，提供了通过根据第一方面的方法可获得的微纤化纤维素。 根据本发明的第三方面，提供了根据第二方面的所述微纤化纤维素在食品，纸制品，复合材料，涂料或流变改性剂（例如钻井泥浆）中的用途。

公开(公告)号：WO2004050983A1

公开(公告)日：2004-06-17

申请号：PCT/SE2003/001778

申请日：2003-11-17

Applicant: STFI, SKOGSINDUSTRINS TEKNISKA FORSKNINGSINSTITUT AB ,  BRELID, Harald ,  AXEGÅRD, Peter

Inventor： BRELID, Harald ,  AXEGÅRD, Peter

IPC: D21B1/02

CPC classification number: D21C1/04 ,  D21B1/021 ,  D21B1/16

Abstract: The present invention provides, according to a first aspect, a method for treatment of wood chips from soft or hard wood or a mixture thereof for the reduction of non-process elements and/or organic process disturbing substances in a mechanical pulping process or a chemimechanical pulping process comprising the following steps: a) introduction of cracks in the chips or refining the chips to a coarse fibre structure, in order to considerably shorten the diffusion ways within the wood material; b) treatment of the chips with an acidic leaching liquid; c) extensive removal of the acidic leaching liquid; and d) adjustment of the pH to a level suitable for refining, preferably pH 4. The present invention also provides, according to a second aspect, a system for using the method according to the first aspect.

Abstract translation: 根据第一方面，本发明提供了一种用于处理来自软木或硬木或其混合物的木片的方法，用于在机械制浆过程或化学机械中还原非工艺元素和/或有机工艺干扰物质 制浆方法包括以下步骤：a）在芯片中引入裂纹或将碎屑精制成粗纤维结构，以大大缩短木材内的扩散方式; b）用酸性浸出液处理碎片; c）广泛去除酸性浸出液; 和d）将pH调节至适于精制，优选pH 4的水平。根据第二方面，本发明还提供了一种使用根据第一方面的方法的系统。

公开(公告)号：WO2003048452A1

公开(公告)日：2003-06-12

申请号：PCT/SE2002/002217

申请日：2002-12-03

Applicant: STFI, SKOGSINDUSTRINS TEKNISKA FORSKNINGSINSTITUT AB ,  SÖDERBERG, Daniel

Inventor： SÖDERBERG, Daniel

IPC: D21F11/04

CPC classification number: D21F11/04 ,  D21F1/02 ,  D21F1/028

Abstract: The present invention relates to a method of forming a layered fibrous web, comprising leading at least two different fibre suspensions through a head box (10), separating the fibre suspensions from each other by a blade means (18, 180), supplying the fibre suspensions to a web forming device (24) and forming a water layer having a transversely uniform flow at an outlet at the end of the blade means (18, 180), such that the water layer constitutes an extension of the blade means and thereby prevents mixing of the fibre suspensions. The method comprises arranging the blade means (18, 180) to be freely movable in a substantially vertical direction in order to permit an equalization of pressure between the fibre suspension layers separated by the blade means and thereby reducing wake effects downstream the edge of the blade means. The invention furthermore relates to a paper machine for carrying out said method.

Abstract translation: 本发明涉及一种形成层状纤维网的方法，包括通过头箱（10）引导至少两种不同的纤维悬浮液，通过叶片装置（18,180）将纤维悬浮液彼此分离，供应纤维 将悬浮液悬挂到幅材成形装置（24）上并在叶片装置（18,180）的端部处的出口处形成具有横向均匀流动的水层，使得水层构成叶片装置的延伸部分，从而防止 混合纤维悬浮液。 该方法包括将叶片装置（18,180）布置成在基本上垂直的方向上可自由移动，以允许由叶片装置分离的纤维悬浮层之间的压力平衡，从而减少叶片边缘下游的尾流效应 手段。 本发明还涉及一种用于执行所述方法的造纸机。

公开(公告)号：WO2003027384A1

公开(公告)日：2003-04-03

申请号：PCT/SE2002/001556

申请日：2002-09-02

Applicant: STFI, SKOGSINDUSTRINS TEKNISKA FORSKNINGSINSTITUT AB ,  DELIN, Lennart

Inventor： DELIN, Lennart

IPC: D21C11/02

CPC classification number: D21C11/125 ,  D21C11/02

Abstract: A method of recovery of alkaline sulphite pulping chemicals and for production of steam is disclosed. The method comprises gasification of evaporated spent cooking liquor at conditions resulting in a hydrogen sulphide containing gas and a solid residue. The gas is combusted in a steam boiler, where the hydrogen sulphide is converted into sulphur dioxide and steam is produced. The solid residue is recovered in a leaching process, preferably a two-stage leaching process, where process-foreign substances are removed and the rest of the contents is divided into substantially pure sodium carbonate and a mixture of sodium carbonate, sodium sulphate and sodium sulphide. The substantially pure sodium carbonate is used for absorption of sulphur dioxide from the steam boiler. The mixture of sodium carbonate, sodium sulphate and sodium sulphide is causticized and the resulting sodium hydroxide containing solution can optionally be mixed with the substantially pure sodium carbonate after the absorption of sulphur dioxide in order to produce a fresh cooking liquor.

Abstract translation: 公开了一种回收碱性亚硫酸盐制浆化学品和生产蒸汽的方法。 该方法包括在产生含硫化氢气体和固体残余物的条件下气化蒸发的废蒸煮液。 气体在蒸汽锅炉中燃烧，其中硫化氢被转化成二氧化硫并产生蒸汽。 固体残余物在浸出过程中回收，优选两段浸出过程，其中除去工艺异物，将其余内容物分成基本上纯的碳酸钠和碳酸钠，硫酸钠和硫化钠的混合物 。 基本上纯的碳酸钠用于从蒸汽锅炉吸收二氧化硫。 碳酸钠，硫酸钠和硫化钠的混合物被苛化，所得到的含氢氧化钠的溶液可以任选地与二氧化硫吸收之后与基本上纯的碳酸钠混合以产生新鲜的蒸煮液。

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

Applicant: STFI ,  FRANSSON, Per-Ivar ,  GRANLÖF, Lars ,  HAGBERG, Mats ,  JEGEBÄCK, Matts

Inventor： STFI

IPC: G01N15/06

CPC classification number: D21G9/0027

Abstract: 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.

Abstract translation: 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。

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

Applicant: STFI ,  JOHANSSON, Lennart ,  RINGSTRÖM, Leif

Inventor： STFI

IPC: G01N21/84

CPC classification number: G01N33/46 ,  G01N21/8986 ,  G01N33/34 ,  G01N2021/8887 ,  G01N2201/102

Abstract: 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.

Abstract translation: 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。

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

Applicant: STFI ,  ENGSTRAND, Per, Ossian ,  HTUN, Myat, Thoung ,  HAMMAR, Lars-Ake ,  PETTERSSON, Rune, Lennart

Inventor： STFI

IPC: D21B01/16

CPC classification number: D21B1/16 ,  D21D1/20

Abstract: 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.