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1. (WO2019003655) METHOD FOR PRODUCING PULP FIBERS FOR CELLULOSE NANOFIBERIZATION, AND PULP FIBERS FOR CELLULOSE NANOFIBERIZATION
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2019/003655 International Application No.: PCT/JP2018/018175
Publication Date: 03.01.2019 International Filing Date: 10.05.2018
IPC:
D21C 5/02 (2006.01) ,A61L 2/18 (2006.01) ,A61L 11/00 (2006.01) ,B09B 3/00 (2006.01) ,B09B 5/00 (2006.01) ,B29B 17/00 (2006.01) ,C08J 11/10 (2006.01) ,C08J 11/16 (2006.01) ,C08J 11/26 (2006.01) ,A61L 101/10 (2006.01)
D TEXTILES; PAPER
21
PAPER-MAKING; PRODUCTION OF CELLULOSE
C
PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE- CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
5
Other processes for obtaining cellulose, e.g. cooking cotton linters
02
Working-up waste paper
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
METHODS 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
2
Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
16
using chemical substances
18
Liquid substances
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
METHODS 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
11
Disinfection or sterilising methods specially adapted for refuse
B PERFORMING OPERATIONS; TRANSPORTING
09
DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
B
DISPOSAL OF SOLID WASTE
3
Destroying solid waste or transforming solid waste into something useful or harmless
B PERFORMING OPERATIONS; TRANSPORTING
09
DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
B
DISPOSAL OF SOLID WASTE
5
Operations not covered by a single other subclass or by a single other group in this subclass
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B
PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
17
Recovery of plastics or other constituents of waste material containing plastics
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
11
Recovery or working-up of waste materials
04
of polymers
10
by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
11
Recovery or working-up of waste materials
04
of polymers
10
by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
16
by treatment with inorganic material
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
J
WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
11
Recovery or working-up of waste materials
04
of polymers
10
by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
18
by treatment with organic material
22
by treatment with organic oxygen-containing compounds
26
containing carboxylic acid groups, their anhydrides or esters
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
L
METHODS 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
101
Chemical composition of materials used in disinfecting, sterilising or deodorising
02
Inorganic materials
10
Ozone
Applicants:
ユニ・チャーム株式会社 UNICHARM CORPORATION [JP/JP]; 愛媛県四国中央市金生町下分182番地 182, Shimobun, Kinsei-cho, Shikokuchuo-shi, Ehime 7990111, JP
Inventors:
小西 孝義 KONISHI, Takayoshi; JP
平岡 利夫 HIRAOKA, Toshio; JP
栗田 範朋 KURITA, Noritomo; JP
Agent:
青木 篤 AOKI, Atsushi; JP
三橋 真二 MITSUHASHI, Shinji; JP
小野田 浩之 ONODA, Hiroyuki; JP
奥野 剛規 OKUNO, Yoshiki; JP
藤本 健治 FUJIMOTO, Kenji; JP
Priority Data:
2017-12679328.06.2017JP
Title (EN) METHOD FOR PRODUCING PULP FIBERS FOR CELLULOSE NANOFIBERIZATION, AND PULP FIBERS FOR CELLULOSE NANOFIBERIZATION
(FR) PROCÉDÉ DE PRODUCTION DE FIBRES DE PÂTE À PAPIER POUR LE NANODÉFIBRAGE DE LA CELLULOSE, ET FIBRES DE PÂTE À PAPIER POUR LE NANODÉFIBRAGE DE LA CELLULOSE
(JA) セルロースナノファイバー化用パルプ繊維を製造する方法、及びセルロースナノファイバー化用パルプ繊維
Abstract:
(EN) The purpose of the present invention is to provide a method which is for producing pulp fibers for cellulose nanofiberization from pulp fibers of used sanitary products, and which can produce pulp fibers for cellulose nanofiberization that have low lignin content and a low distribution thereof and that have excellent cellulose nanofiberization properties. This method is described below. The method is characterized by involving: a step for supplying, from a mixed solution supply port (32) to a treatment tank (31), a mixed solution (51) which contains superabsorbent polymers and pulp fibers derived from used sanitary products; a step for supplying an ozone-containing gas (53) from an ozone-containing gas supply port (43) to a treatment solution (52) inside of the treatment tank (31); a step in which, by raising the ozone-containing gas (53) while lowering the superabsorbent polymers and pulp fibers in the treatment tank (31), the ozone-containing gas (53) is brought into contact with the superabsorbent polymers and the pulp fibers, and pulp fibers for cellulose nanofiberization are formed from the pulp fibers; and a step for discharging the treatment solution (52) from a treatment solution discharge port (33), wherein the pulp fibers for cellulose nanofiberization have a lignin content of less than or equal to 0.1 mass%.
(FR) L'objectif de la présente invention est de fournir un procédé qui sert à produire des fibres de pâte à papier pour le nanodéfibrage de la cellulose à partir de fibres de pâte à papier de produits sanitaires usagés, et qui peut produire des fibres de pâte à papier pour le nanodéfibrage de la cellulose qui ont une faible teneur en lignine et une faible répartition de cette dernière et qui ont d'excellentes propriétés de nanodéfibrage de la cellulose. Ce procédé est décrit ci-dessous. Le procédé est caractérisé en ce qu'il implique : une étape consistant à fournir, à partir d'un orifice d'alimentation en solution mixte (32) à un réservoir de traitement (31), une solution mixte (51) qui contient des polymères superabsorbants et des fibres de pâte à papier dérivées de produits sanitaires usagés; une étape consistant à fournir un gaz contenant de l'ozone (53) à partir d'un orifice d'alimentation en gaz contenant de l'ozone (43) à une solution de traitement (52) à l'intérieur du réservoir de traitement (31); une étape dans laquelle, en augmentant le gaz contenant de l'ozone (53) tout en abaissant les polymères superabsorbants et les fibres de pâte à papier dans le réservoir de traitement (31), le gaz contenant de l'ozone (53) est mis en contact avec les polymères superabsorbants et les fibres de pâte à papier, et les fibres de pâte à papier pour le nanodéfibrage de la cellulose sont formées à partir des fibres de pâte à papier; et une étape pour évacuer la solution de traitement (52) à partir d'un orifice d'évacuation de solution de traitement (33), les fibres de pâte à papier pour le nanodéfibrage de la cellulose ayant une teneur en lignine inférieure ou égale à 0,1 % en masse.
(JA) 本開示は、リグニン含有率が低く且つその分布が小さく、セルロースナノファイバー化性に優れるセルロースナノファイバー化用パルプ繊維が製造可能である、使用済の衛生用品のパルプ繊維から、セルロースナノファイバー化用パルプ繊維を製造する方法を提供することを目的とする。本開示の製造法は、以下の通りである。 使用済の衛生用品由来の高吸収性ポリマー及びパルプ繊維を含む混合液(51)を、混合液供給口(32)から処理槽(31)に供給するステップ、オゾン含有ガス(53)を、オゾン含有ガス供給口(43)から処理槽(31)内の処理液(52)に供給するステップ、処理槽(31)内で、高吸収性ポリマー及びパルプ繊維を下降させながら、オゾン含有ガス(53)を上昇させることにより、オゾン含有ガス(53)を、高吸収性ポリマー及びパルプ繊維と接触させ、パルプ繊維からセルロースナノファイバー化用パルプ繊維を形成するステップ、処理液(52)を、処理液排出口(33)から排出するステップを含み、セルロースナノファイバー化用パルプ繊維が、0.1質量%以下のリグニン含有率を有することを特徴とする方法。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)