公开(公告)号：EP2712364A1

公开(公告)日：2014-04-02

申请号：EP13735325.6

申请日：2013-07-12

Applicant: SAPPI Netherlands Services B.V.

Inventor： GRAVESON, Ian

IPC: C08B15/02

CPC classification number: C08B15/02 ,  D21C9/004 ,  D21C9/005 ,  D21C9/007 ,  D21H11/18 ,  D21H17/07 ,  D21H17/64 ,  D21H17/66 ,  D21H21/22

Abstract: The present invention is directed towards a low energy method for the preparation of nanocellulose using selected organic or inorganic swelling agents. The use of these swelling agents allows opening up the intercrystalline structure and partially the intracrystalline structure of cellulosic materials thereby achieving a reduction in the energy required to subsequently process the resultant swollen cellulose material into nanocellulose.

公开(公告)号：EP2558624A2

公开(公告)日：2013-02-20

申请号：EP11715203.3

申请日：2011-04-12

Applicant: SAPPI Netherlands Services B.V.

Inventor： TURNER, Philip ,  HERNANDEZ, Zurine ,  HILL, Callum

IPC: D01D1/06 ,  D01D5/12 ,  D01F2/00

CPC classification number: D01D1/065 ,  D01D5/12 ,  D01F2/00

Abstract: A method for the spinning of a fibre comprising cellulose nano-fibrils being aligned along the main axis of the fibre from a lyotropic suspension of cellulose nano-fibrils, said nano-fibril alignment being achieved through extension of the extruded fibre from a die, spinneret or needle, wherein said fibre is dried under extension and the aligned nano-fibrils aggregate to form a continuous structure and wherein the suspension of nano-fibrils, which has a concentration of solids of at least 7% wt, is homogenised using at least a mechanical, distributive mixing process prior to its extrusion. The fibrils used in this method can be extracted from a cellulose-rich material such as wood. The invention also related to a cellulose-based fibre obtained according to this method and to a cellulose fibre which contains at least 90% wt of crystallised cellulose.

公开(公告)号：EP2167324A1

公开(公告)日：2010-03-31

申请号：EP08773880.3

申请日：2008-07-05

Applicant: SAPPI Netherlands Services B.V.

Inventor： BOTTY, Gilbert ,  LEMMENS, Philip ,  FISCHER, Jelena ,  HENDRIX, Sandra ,  SEIDLER, Nicole

IPC: B41M5/52

CPC classification number: B41M5/52 ,  B41M5/5218 ,  Y10T428/25 ,  Y10T428/259

Abstract: Disclosed is a printing sheet for offset printing, comprising at least one image receiving coating and optionally one or several pre-coatings beneath said image receiving coating, said coatings comprising a pigment part, a binder part, and optionally additives, wherein the pigment part essentially consists of one or a mixture of fine particulate pigments selected from the group of carbonate, kaolin, solid or vacuolated polymer pigment, wherein said binder part comprises waterglass.

公开(公告)号：EP1743976A1

公开(公告)日：2007-01-17

申请号：EP05106427.7

申请日：2005-07-13

Applicant: SAPPI Netherlands Services B.V.

Inventor： Haenen, JP.G.H.F. ,  Resch, P.K. ,  Scholte, H.B.

IPC: D21H19/40

CPC classification number: B41M5/502 ,  B41M5/506 ,  B41M5/52 ,  B41M5/5218 ,  B41M5/5254 ,  D21H19/40 ,  D21H19/82 ,  D21H19/84 ,  D21H21/18 ,  D21H21/52 ,  D21H25/14

Abstract: The specification pertains to a single or multiple coated printing sheet in particular but not exclusively for sheet-fed offset printing with an image receptive coating layer on a paper substrate. Unexpectedly short converting times and times until reprinting is possible can be achieved by choosing a coating, in which the image receptive coating layer comprises a top layer and/or at least one second layer below said top layer, said top and/or second layer comprising a pigment part, wherein this pigment part is composed of 1 - 95 preferably of 80-95 parts in dry weight of a fine particulate carbonate and/or of a fine particulate kaolin and 1 - 100, preferably 6 to 20 parts in dry weight of a fine particulate silica, and a binder part, wherein this binder part is composed of 5-20 parts in dry weight of binder and less than 4 parts in dry weight of additives. Furthermore methods for making such a printing sheet and uses of such a printing sheet are disclosed.

Abstract translation: 本说明书涉及单一或多重涂布的印刷纸，特别是但不限于在纸基材上具有图像接受涂层的单张胶版印刷。 可以通过选择涂层来实现再转印之前的短转换时间和次数，其中图像接受涂层包括顶层和/或在所述顶层下面的至少一个第二层，所述顶部和/或第二层包含 颜料部分，其中该颜料部分由1-95优选80-95份干重的细颗粒碳酸盐和/或细颗粒高岭土和1-100，优选6-20份干重量的 细颗粒二氧化硅和粘合剂部分，其中该粘合剂部分由5-20份干燥粘合剂和小于4份干重量的添加剂组成。 此外，公开了制造这种印刷用纸的方法和这种印刷用纸的使用。

公开(公告)号：EP1657359A1

公开(公告)日：2006-05-17

申请号：EP04405707.3

申请日：2004-11-16

Applicant: SAPPI Netherlands Services B.V.

Inventor： Scholte, Bert ,  Haenen, Jean-Pierre

IPC: D21H19/10 ,  D21H19/80 ,  D21H19/44

CPC classification number: D21H19/10 ,  B41M5/5218 ,  D21H19/44 ,  D21H19/80

Abstract: Coating for an offset paper comprising a catalyst for fixing polymerizable or crosslinkable constituents of the offset ink. The chemical drying time can be substantially reduced if such a catalyst system is added to the coating, wherein preferentially such a catalyst is a transition metal complex, like Mn (bipy).

Abstract translation: 胶版纸的涂料包括用于固定胶印油墨的可聚合或可交联成分的催化剂。 如果将这样的催化剂体系添加到涂层中，则化学干燥时间可以显着降低，其中优选地，这种催化剂是过渡金属络合物，如Mn（bipy）。