-
公开(公告)号：US20210197540A1
公开(公告)日：2021-07-01
申请号：US17058045
申请日：2019-05-17
申请人： Klabin S.A.
摘要： The present invention relates to a multilaminar paper containing cellulosic fibers and to a process for making the same, comprising bonding different layers of such paper with the addition of 0.5 to 1.5 g/m2 of microfibrillated cellulose (MFC) with a preferred mean diameter of less than 250 nanometers, generating a paper where starch has been completely replaced and with a final grammage ranging from 60 to 440 g/m2 and with improved mechanical strength properties using smaller amounts of raw material.
-
公开(公告)号：US20240344274A1
公开(公告)日：2024-10-17
申请号：US18579219
申请日：2022-06-30
申请人： Klabin S.A.
IPC分类号： D21H21/10 , B65D65/46 , D21D1/20 , D21F11/02 , D21H11/04 , D21H17/34 , D21H19/38 , D21H19/54 , D21H21/12 , D21H23/04 , D21H27/10
CPC分类号： D21H21/10 , B65D65/46 , D21D1/20 , D21F11/02 , D21H11/04 , D21H17/34 , D21H19/385 , D21H19/54 , D21H21/12 , D21H23/04 , D21H27/10 , B65D2565/382
摘要： The present invention is related to a water dispersible paper, particularly for use in packages in the construction area. The dispersibility of the paper of the present invention is achieved due to the low wet resistance and high capillary absorption and basically consists of an unbleached cellulose-based paper aiming at the reduction of ingredients conventionally used, adding only defoamers and drainage aids in the formulation thereof. The paper of the present invention consists in the elimination of the use of disintegration aids (such as surfactants), gluing agents and dry resistance agents (such as starch). There is further described a manufacturing process for dispersible paper which allows obtaining a paper having low wet tensile strength and high capillary rise without the need for the chemical agents usually known for the manufacture of this type of paper. The present invention further foresees a package containing said paper for use in construction such as in packages for, lime, sand, cellulosic or synthetic fibers or powder pigments, among others.
-
公开(公告)号：US20240327580A1
公开(公告)日：2024-10-03
申请号：US18577154
申请日：2022-07-07
发明人： Pedro FARDIM , Rita CAIADO GASPAR , Marcelo COELHO DOS SANTOS MUGUET SOARES , Bruno BRISOLLA RAVANELLO , Allan FRANSISCO HORCHULHAK
IPC分类号： C08H7/00
CPC分类号： C08H6/00
摘要： The invention relates to a method of isolating a lignin fraction from a solution comprising solubilised lignin, the method comprising the steps of adding water to a solution comprising solubilised lignin and a hydrotrope, thereby lowering the hydrotrope concentration, until a part of the lignin becomes insoluble, and isolating the insoluble lignin.
-
4.发明申请公开(公告)号：US20210207325A1
公开(公告)日：2021-07-08
申请号：US17058071
申请日：2019-05-17
申请人： Klabin S.A.
摘要： The present invention relates to a papermaking process of kraft paper, sackraft or paperboard comprising adding 1.0 to 1.5% by weight of MFC with a preferred average diameter between 1 and 568 nanometers and starch ranging from 1.0 to 10.0 kg/ton, preferably 5.0 kg/ton, generating a pulp with higher concentration of microfibers and improved strength, and consequently, a final paper with grammage ranging from 60 to 440 g/m2 and with improved strength properties for use in packaging materials.
-
5.发明公开公开(公告)号：US20240125052A1
公开(公告)日：2024-04-18
申请号：US18274683
申请日：2022-01-24
申请人： Klabin S.A.
摘要： The present invention relates to White Top Kraftliner paper comprising two to three layers of bleached or unbleached chemical fibers wherein the layers total 100% short eucalyptus chemical fiber, and at least one bulk additive. It also refers to the production process of said paper, use of said paper, and packaging produced with said paper.
-
-
-
-
搜索结果
5 条记录 (耗时 0.011 秒)
