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1. WO2020141589 - METHOD FOR PRODUCING PULP FIBER RAW MATERIAL, AND PULP FIBER RAW MATERIAL AS CELLULOSE RAW MATERIAL

Publication Number WO/2020/141589
Publication Date 09.07.2020
International Application No. PCT/JP2019/050212
International Filing Date 20.12.2019
IPC
D21C 5/02 2006.1
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
5Other processes for obtaining cellulose, e.g. cooking cotton linters
02Working-up waste paper
A61L 2/18 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
16using chemical substances
18Liquid substances
B09B 3/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
BDISPOSAL OF SOLID WASTE
3Destroying solid waste or transforming solid waste into something useful or harmless
C08J 11/16 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
11Recovery or working-up of waste materials
04of polymers
10by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
16by treatment with inorganic material
D21B 1/32 2006.1
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
BFIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
1Fibrous raw materials or their mechanical treatment
04by dividing raw materials into small particles, e.g. fibres
12by wet methods; by the use of steam
30Defibrating by other means
32of waste paper
A61L 101/10 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
101Chemical composition of materials used in disinfecting, sterilising or deodorising
02Inorganic materials
10Ozone
CPC
A61L 2/18
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
2Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
16using chemical substances
18Liquid substances ; or solutions comprising solids or dissolved gases
B09B 3/00
BPERFORMING OPERATIONS; TRANSPORTING
09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
BDISPOSAL OF SOLID WASTE
3Destroying solid waste or transforming solid waste ; or contaminated solids; into something useful or harmless
C08J 11/16
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G
11Recovery or working-up of waste materials
04of polymers
10by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
16by treatment with inorganic material
D21B 1/32
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
BFIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
1Fibrous raw materials or their mechanical treatment
04by dividing raw materials into small particles, e.g. fibres
12by wet methods, by the use of steam
30Defibrating by other means
32of waste paper
D21C 3/00
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
3Pulping cellulose-containing materials
D21C 5/02
DTEXTILES; PAPER
21PAPER-MAKING; PRODUCTION OF CELLULOSE
CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
5Other processes for obtaining cellulose, e.g. cooking cotton linters
02Working-up waste paper
Applicants
  • ユニ・チャーム株式会社 UNICHARM CORPORATION [JP]/[JP]
Inventors
  • 小西 孝義 KONISHI, Takayoshi
  • 坂東 健司 BANDOU, Takeshi
  • 栗田 範朋 KURITA, Noritomo
Agents
  • 青木 篤 AOKI, Atsushi
  • 三橋 真二 MITSUHASHI, Shinji
  • 小野田 浩之 ONODA, Hiroyuki
  • 奥野 剛規 OKUNO, Yoshiki
  • 藤本 健治 FUJIMOTO, Kenji
Priority Data
2018-24899431.12.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD FOR PRODUCING PULP FIBER RAW MATERIAL, AND PULP FIBER RAW MATERIAL AS CELLULOSE RAW MATERIAL
(FR) PROCÉDÉ DE PRODUCTION DE MATIÈRE PREMIÈRE DE FIBRE DE PÂTE, ET MATIÈRE PREMIÈRE DE FIBRE DE PÂTE EN TANT QUE MATIÈRE PREMIÈRE DE CELLULOSE
(JA) パルプ繊維原料を製造する方法、及びセルロース原料としてのパルプ繊維原料
Abstract
(EN)
The purpose of the present invention is to provide a method for producing a pulp fiber raw material suitable as a cellulose raw material. This invention is as follows. A method for producing pulp fiber raw material as a cellulose raw material from pulp fiber to be treated, characterized by involving an ozone treatment step (S36) in which, by supplying an ozone-containing gas to a treatment tank containing a treatment liquid that contains pulp fiber inclusions containing pulp fibers to be treated, ozone-treated pulp fibers are formed from the pulp fibers to be treated, and an alkali treatment step (S39) for treating the aforementioned ozone-treated pulp fibers with an alkaline aqueous solution to form the aforementioned pulp fiber raw material having a hemicellulose content ratio less than 8.0 mass%.
(FR)
La présente invention a pour objet la réalisation d'un procédé de production d'une matière première de fibre de pâte en tant que matière première de cellulose. L'objet de l'invention est réalisé par un procédé de production de matière première de fibre de pâte en tant que matière première de cellulose à partir de fibre de pâte à traiter, caractérisé en ce qu'il comprend une étape de traitement à l'ozone (S36) dans lequel, en fournissant un gaz contenant de l'ozone à un réservoir de traitement contenant un liquide de traitement qui contient des inclusions de fibre de pâte contenant des fibres de pâte à traiter, des fibres de pâte traitées à l'ozone sont formées à partir des fibres de pâte à traiter, et une étape de traitement alcalin (S39) destiné à traiter les fibres de pâte traitées à l'ozone mentionnées ci-dessus avec une solution aqueuse alcaline pour former la matière première de fibre de pâte susmentionnée ayant un rapport de teneur en hémicellulose inférieur à 8,0 % en masse.
(JA)
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。
Also published as
EP2019907996
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