公开(公告)号：WO2023083855A1

公开(公告)日：2023-05-19

申请号：PCT/EP2022/081247

申请日：2022-11-09

Applicant: WASTE PAPER TRADE C.V. ,  OBM RECYCLING MACHINERY B.V.

Inventor： OLDENBURGER, Jan Lucas

IPC: D21B1/08 ,  D21C5/02 ,  D21B1/10 ,  D21B1/02

Abstract: A method of processing waste paper comprising: separating ferrous metal from input waste paper via a magnetic separator; shredding the input waste paper into primary paper pieces with a length and width of about 40 millimetres or smaller via a primary shredder; feeding the primary paper pieces to two bunkers to divide the primary paper fibres into at least two parts; feeding each part of the primary paper pieces into a secondary shredder; shredding the primary paper pieces into final paper fibres by a secondary shredder, preferably, the final paper fibres being with a length of about 10 or 8 millimetres or smaller in a fluff form; separating the final paper fibres via a cyclone separator.

公开(公告)号：WO2023017127A2

公开(公告)日：2023-02-16

申请号：PCT/EP2022/072582

申请日：2022-08-11

Applicant: KOEHLER INNOVATION & TECHNOLOGY GMBH

Inventor： BRASCH, Uwe ,  STALLING, Timo

IPC: B41M5/36 ,  D21B1/32 ,  D21C5/02

Abstract: Die vorliegende Erfindung betrifft ein wärmeempfindliches Aufzeichnungsmaterial, wobei die Farbschicht mindestens einen entfernbaren Farbstoff, insbesondere im Altpapierkreislauf entfernbaren Farbstoff enthält, ein Verfahren zum Entfärben eines wärmeempfindlichen Aufzeichnungsmaterials um eine Faserstoffmischung zu erhalten, umfassend die Schritte des Bereitstellens einer Mischung des wärmeempfindlichen Aufzeichnungsmaterials und mindestens einer weiteren Papiersorte, insbesondere wenigstens einer Altpapiersorte und des anschließenden Entfärbens der Mischung in einem Deinking Verfahren, um eine Faserstoffmischung zu erhalten, eine durch dieses Verfahren erhältliche Faserstoffmischung, ein Verfahren zur Herstellung eines Recyclingpapiers, umfassend die Faserstoffmischung, durch das Verdichten und Entwässern der Faserstoffmischung und ein Recyclingpapier, erhältlich durch dieses Verfahren.

公开(公告)号：WO2022263630A1

公开(公告)日：2022-12-22

申请号：PCT/EP2022/066561

申请日：2022-06-17

Applicant: HONEXT MATERIAL, SL

Inventor： LEE YUN, Sebel

IPC: D21C5/00 ,  D21C5/02 ,  D21C7/00 ,  D21C9/00 ,  D21D5/02

Abstract: Enzymatic treatment method and system for fibrous cellulosic material and rigid cellulosic product, wherein the method comprises introduction of raw fibrous cellulosic material (1) in a stirrer (20); enzymatic treatment of the raw fibrous cellulosic material (1) for a specific period of time to obtain a treated cellulosic material, said enzymatic treatment including the addition of enzymes (11, 12, 13, 14) to the raw fibrous cellulosic material and the uniform distribution of said enzymes in the raw fibrous cellulosic material by stirring; drying the treated cellulosic material; wherein at least a proportion of the raw fibrous cellulosic material is derived from industrial waste.

公开(公告)号：WO2022174891A1

公开(公告)日：2022-08-25

申请号：PCT/EP2021/053816

申请日：2021-02-17

Applicant: UPM-KYMMENE CORPORATION

Inventor： OBERNDORFER, Johann ,  MÄNNER, Philipp ,  GEISTBECK, Manfred ,  OIKARINEN, Seppo ,  KRAUTHAUF, Thomas

IPC: D21C5/02 ,  G01N33/34

Abstract: The invention relates to a method for manufacturing recycled cellulose based fibers (RCF), the method comprising steps of analyzing and describing a composition of recovered raw material comprising papers and/or boards by use of at least 4 product groups, each product group defining a type of the raw material, determining product groups available for a deinking process, predicting quality achievable at the deinking process based on at least one quality parameter and the product groups available for the deinking process, thereby determining a predicted level of the at least one quality parameter, applying a predetermined share of each product group to the deinking process based on the prediction, which deinking process comprises at least steps of pulping (110) the applied materials in water-based solution in order to obtain pulped material, and removing at least some impurities from the pulped material in a flotation step (120) and/or a screening step (130), thereby obtaining the recycled cellulose based fibers (RCF). The invention further relates to a use of a simulation process for a manufacturing process of recycled cellulose based fibers.

公开(公告)号：WO2022062762A1

公开(公告)日：2022-03-31

申请号：PCT/CN2021/112488

申请日：2021-08-13

Applicant: 刘玉芳 ,  白博

Inventor： 白博 ,  白嘉妮 ,  王东 ,  刘玉芳 ,  史晓菲

IPC: D21D1/20 ,  D21D1/00 ,  D21C5/02 ,  D21C5/00

Abstract: 一种副产黄腐酸的棉秆模塑餐盒浆生产工艺，围绕去除棉秆原料中果胶和半纤维素等阴离子垃圾产生来源，采取蒸煮、疏解和生物处理措施，得到低叩解度浆；保留部分木质素以有助于形成模塑餐盒防油防水膜，并提高模塑餐盒的挺度和滤水性、提高纤维浆得率；采用酸性亚铵法制浆满足纤维要求同时得到黄腐酸。通过该工艺实现去除阴离子垃圾、较高的纤维得率，得到净化的棉杆模塑餐盒纤维、保留了必要的木质素、副产得到黄腐酸。用低叩解度棉秆模塑餐盒浆和高叩解度秸秆化学浆配浆以提高滤水性。既满足了模塑餐盒对纤维浆的特殊要求，提高了秸秆资源综合利用的水平，伴生得到高附加值黄腐酸，又从源头上根治制浆污染问题。

公开(公告)号：WO2021229144A1

公开(公告)日：2021-11-18

申请号：PCT/FI2021/050338

申请日：2021-05-07

Applicant: VALMET TECHNOLOGIES OY

Inventor： MOHR, Robert

IPC: D21C1/02 ,  D21B1/12 ,  D21C5/02 ,  D21H11/14 ,  B27N3/04 ,  B27N3/007 ,  B27N3/18

Abstract: A method for producing recycled fibers from MDF or HDF containing material, for instance for use in MDF or HDF production. The method comprises steaming (2) the MDF or HDF containing material for a predetermined time to obtain steamed material, subjecting the steamed material to a pulping process (3) to obtain a slurry, screening (4a, 4b) the slurry to remove oversize particles to obtain a screened slurry, dewatering (5) the screened slurry to obtain dewatered fibers and refining or fluffing (6) the dewatered fibers to obtain said recycled fibers. A method for producing MDF or HDF boards using such recycled fibers is also provided. Corresponding systems for producing recycled fibers and producing MDF or HDF boards are also provided.

公开(公告)号：WO2021040046A1

公开(公告)日：2021-03-04

申请号：PCT/JP2020/032925

申请日：2020-08-31

Applicant: ユニ・チャーム株式会社

Inventor： 小西　孝義 ,  大橋　直人 ,  八巻　孝一 ,  栗田　範朋

IPC: D21C5/02 ,  B29B11/16 ,  C08B15/02 ,  C08K7/02 ,  C08L101/00 ,  B29K105/12

Abstract: 本開示は、ヘミセルロース含有率が低く、セルロースナノファイバーを含む繊維複合強化材料を簡易に形成することができるパルプ繊維原料を製造する方法を提供することを目的とする。本開示の製造方法は、以下の通りである。　処理すべきパルプ繊維から、セルロースナノファイバーを含む繊維複合強化材料用のパルプ繊維原料を製造する方法であって、上記処理すべきパルプ繊維を含む処理液にオゾン含有ガスを供給することにより、上記処理すべきパルプ繊維から、８．０質量％未満のヘミセルロース含有率を有する上記パルプ繊維原料を形成する、パルプ繊維原料形成ステップを含むことを特徴とする方法。

公开(公告)号：WO2020141589A1

公开(公告)日：2020-07-09

申请号：PCT/JP2019/050212

申请日：2019-12-20

Applicant: ユニ・チャーム株式会社

Inventor： 小西　孝義 ,  坂東　健司 ,  栗田　範朋

IPC: D21C5/02 ,  A61L2/18 ,  B09B3/00 ,  C08J11/16 ,  D21B1/32 ,  A61L101/10

Abstract: 本開示は、セルロース原料として好適なパルプ繊維原料を製造する方法を提供することを目的とする。本開示は、以下の通りである。　処理すべきパルプ繊維から、セルロース原料としてのパルプ繊維原料を製造する方法であって、処理すべきパルプ繊維を含むパルプ繊維含有物を含む処理液を含む処理槽にオゾン含有ガスを供給することにより、上記処理すべきパルプ繊維からオゾン処理後パルプ繊維を形成する、オゾン処理ステップ（Ｓ３６）、上記オゾン処理後パルプ繊維をアルカリ水溶液で処理し、８．０質量％未満のヘミセルロース含有率を有する上記パルプ繊維原料を形成する、アルカリ処理ステップ（Ｓ３９）を含むことを特徴とする方法。

公开(公告)号：WO2020084188A1

公开(公告)日：2020-04-30

申请号：PCT/FI2018/050777

申请日：2018-10-24

Applicant: UPM-KYMMENE CORPORATION

Inventor： ANTILA, Janne

IPC: D21H27/00 ,  D21H11/14 ,  D21C5/02 ,  D21C9/00 ,  D21C9/10

Abstract: The invention relates to a backing material layer suitable for use as a layer of a release liner, wherein the backing material layer comprises bleached chemical pulp, and bleached recycled release liner pulp. The invention further relates to a release liner. This invention further relates to a label laminate comprising a release liner. The invention further relates to a method for obtaining backing material layer suitable for use as a layer of a release liner. The invention further relates to a method for manufacturing pulp, which is suitable for use in a layer of a release liner. The invention further relates to use of pulp in a release liner.

公开(公告)号：WO2019014738A1

公开(公告)日：2019-01-24

申请号：PCT/BR2018/050229

申请日：2018-07-07

Applicant: MARCON, Felipe

Inventor： MARCON, Felipe

IPC: D21C5/02 ,  D21B1/08 ,  B09B3/00

CPC classification number: B09B3/00 ,  D21C5/02 ,  Y02W30/648

Abstract: Processo de limpeza para reciclagem de papel kraft em embalagens tipo saco de cimento e demais embalagens similares (1), compreendendo o processo de limpeza para reciclagem, as embalagens podem estar em qualquer forma de deformação (2); as embalagens passarão por um processo de fragmentação (3) quebrando as fibras e transformando os sacos em fragmentos (4); Os fragmentos passarão por um processo de limpeza (5) incluindo ou não fluxo de ar comprimido (6), com um sistema de moagem para triturar os fragmentos (7), uma peneira selecionará apenas os tamanhos desejados (8), com um dispositivo para sucção dos resíduos sólidos (9), triturando os fragmentos e separando do papel (10) os resíduos sólidos (11), separando todas as camadas de papel e limpando-os completamente; os fragmentos de papel já limpos (10) serão compactados e transformados em fardos (12); e os fragmentos de papeis limpos serão definidos como produto final pronto para reciclagem.