WO2017014255A1 - Fibre de cellulose contenant un métal, papier hygiénique mince l'utilisant, et article absorbant - Google Patents

Fibre de cellulose contenant un métal, papier hygiénique mince l'utilisant, et article absorbant Download PDF

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Publication number
WO2017014255A1
WO2017014255A1 PCT/JP2016/071352 JP2016071352W WO2017014255A1 WO 2017014255 A1 WO2017014255 A1 WO 2017014255A1 JP 2016071352 W JP2016071352 W JP 2016071352W WO 2017014255 A1 WO2017014255 A1 WO 2017014255A1
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Prior art keywords
cellulose fiber
metal
containing cellulose
metal ion
fiber
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PCT/JP2016/071352
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English (en)
Japanese (ja)
Inventor
かおり 山邊
金野　晴男
村田　剛
克 水口
Original Assignee
日本製紙株式会社
日本製紙クレシア株式会社
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Priority claimed from JP2015144512A external-priority patent/JP2018178263A/ja
Application filed by 日本製紙株式会社, 日本製紙クレシア株式会社 filed Critical 日本製紙株式会社
Priority to CN201680041257.9A priority Critical patent/CN107849800B/zh
Priority to KR1020187001833A priority patent/KR102116907B1/ko
Priority to JP2017529917A priority patent/JP6767977B2/ja
Publication of WO2017014255A1 publication Critical patent/WO2017014255A1/fr

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/83—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/16—Paper towels; Toilet paper; Holders therefor
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
    • D21H11/20—Chemically or biochemically modified fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes

Definitions

  • the present invention relates to a metal-containing cellulose fiber, a sanitary thin paper using the same, and an absorbent article.
  • Patent Documents 1 and 2 Coexistence of cellulosic material (cellulosic fiber) with 2,2,6,6-tetramethyl-1-piperidine-N-oxy radical (hereinafter referred to as TEMPO) and an inexpensive oxidizing agent sodium hypochlorite
  • TEMPO 2,2,6,6-tetramethyl-1-piperidine-N-oxy radical
  • an inexpensive oxidizing agent sodium hypochlorite When the treatment is performed under the condition, carboxyl groups can be efficiently introduced on the surface of the cellulosic raw material, and oxidized cellulose fibers can be obtained (Patent Documents 1 and 2).
  • the oxidized cellulose fiber has a carboxyl group or a carboxylate group localized on the surface, and is expected to be developed for various uses.
  • Patent Document 1 discloses use of TEMPO oxidized pulp as a deodorant
  • Patent Document 2 discloses use as a reinforcing material.
  • Patent Documents 1 to 2 Although the deodorizing effect and the reinforcing effect are improved, further improvement is required.
  • an object of the present invention is to provide a metal-containing cellulose fiber excellent in deodorizing effect and reinforcing effect, a sanitary thin paper and an absorbent article using the same.
  • the metal ion-containing cellulose fiber of the present invention has a carboxyl group or carboxylate group content of 0.1 to 2.0 mmol / g with respect to the absolutely dry mass of the oxidized cellulose fiber.
  • Canadian standard freeness of the metal ion-containing cellulose fiber containing ions of one or more metal elements selected from the group consisting of Ag, Au, Pt, Pd, Ni, Mn, Fe, Ti, Al, Zn and Cu Is 30 to 400 ml.
  • the Canadian standard freeness of the metal ion-containing cellulose fibers is preferably 50 to 200 ml.
  • the metal ion-containing cellulose fibers preferably have an average fiber length of 0.5 to 2.5 mm and an average fiber diameter of 10 to 40 ⁇ m.
  • the content of the metal element ions with respect to the absolute dry mass of the metal-containing cellulose fiber is preferably 10 to 60 mg / g.
  • the sanitary thin paper of the present invention contains the metal-containing cellulose fiber.
  • the sanitary thin paper of the present invention preferably contains 2 to 30% by mass of the metal-containing cellulose fiber.
  • the absorbent article of the present invention includes an absorbent core, a core wrap sheet that covers or is laminated on the absorbent core, and a liquid-permeable outer layer sheet that covers at least one surface of the core wrap sheet.
  • the core wrap sheet is the sanitary thin paper.
  • the present invention it is possible to provide a metal-containing cellulose fiber excellent in deodorizing effect and reinforcing effect, and a sanitary thin paper and an absorbent article using the same.
  • FIG. 2 is a cross-sectional view taken along line AA in FIG. 2 is an electron microscopic image of the oxidized cellulose fiber of Example 1.
  • FIG. 2 is a cross-sectional view taken along line AA in FIG. 2 is an electron microscopic image of the oxidized cellulose fiber of Example 1.
  • the method for producing oxidized cellulose fibers is not limited, and the cellulose raw material (cellulose fibers) such as wood pulp is selected from the group consisting of N-oxyl compounds and bromides, iodides or mixtures thereof.
  • the manufacturing method which oxidizes in water using an oxidizing agent in presence of the compound which oxidizes, or the manufacturing method etc. which oxidize by making the gas containing ozone and a cellulose raw material contact are illustrated.
  • the cellulose raw material is produced by oxidizing in water using an oxidizing agent in the presence of an N-oxyl compound and a compound selected from the group consisting of bromide, iodide or a mixture thereof.
  • the primary hydroxyl group at the C6 position of the glucopyranose ring is selectively oxidized, and an oxidized cellulose fiber having a carboxyl group (—COOH) or a carboxylate group (—COO—) on the surface can be obtained.
  • the concentration of cellulose during the reaction is not particularly limited, but is preferably 5% by mass or less.
  • the carboxyl group or carboxylate group is also referred to as an “acid group”.
  • the content of acid groups can be measured by the method disclosed in paragraph 0021 of JP-A-2008-001728. That is, 60 mL of a 0.5 to 1 mass% slurry is prepared using a precisely weighed dry cellulose sample, and the pH is adjusted to about 2.5 with a 0.1 mol / L hydrochloric acid aqueous solution. Then, 0.05 mol / L sodium hydroxide aqueous solution is dripped and electrical conductivity measurement is performed. The measurement is continued until the pH is about 11.
  • N-oxyl compound refers to a compound capable of generating a nitroxy radical.
  • any compound can be used as long as it promotes the target oxidation reaction.
  • TEMPO 2,2,6,6-tetramethylpiperidine-1-oxy radical
  • its derivatives for example, 4-hydroxy TEMPO
  • the amount of N-oxyl compound used is not particularly limited as long as it is a catalytic amount capable of oxidizing cellulose as a raw material.
  • 0.01 to 10 mmol is preferable, 0.01 to 1 mmol is more preferable, and 0.05 to 0.5 mmol is more preferable with respect to 1 g of absolutely dry cellulose. Further, it is preferably about 0.1 to 4 mmol / L with respect to the reaction system.
  • Bromide is a compound containing bromine, and examples thereof include alkali metal bromide that can be dissociated and ionized in water.
  • an iodide is a compound containing iodine, and examples thereof include alkali metal iodide.
  • the amount of bromide or iodide used can be selected as long as the oxidation reaction can be promoted.
  • the total amount of bromide and iodide is, for example, preferably 0.1 to 100 mmol, more preferably 0.1 to 10 mmol, and further preferably 0.5 to 5 mmol with respect to 1 g of absolutely dry cellulose.
  • oxidizing agent known ones can be used, and for example, halogen, hypohalous acid, halous acid, perhalogen acid or salts thereof, halogen oxide, peroxide and the like can be used.
  • sodium hypochlorite is preferable because it is inexpensive and has a low environmental impact.
  • the appropriate amount of the oxidizing agent used is, for example, preferably 0.5 to 500 mmol, more preferably 0.5 to 50 mmol, still more preferably 1 to 25 mmol, and most preferably 3 to 10 mmol with respect to 1 g of absolutely dry cellulose. . Further, for example, 1 to 40 mol is preferable with respect to 1 mol of the N-oxyl compound.
  • the reaction temperature is preferably 4 to 40 ° C., and may be room temperature of about 15 to 30 ° C.
  • a carboxyl group is generated in the cellulose, so that the pH of the reaction solution is reduced.
  • an alkaline solution such as an aqueous sodium hydroxide solution is added to maintain the pH of the reaction solution at about 8 to 12, preferably about 10 to 11.
  • the reaction medium is preferably water because it is easy to handle and hardly causes side reactions.
  • the reaction time in the oxidation reaction can be appropriately set according to the progress of oxidation, and is usually 0.5 to 6 hours, for example, about 0.5 to 4 hours.
  • the oxidation reaction may be carried out in two stages. For example, by oxidizing the oxidized cellulose obtained by filtration after the completion of the first-stage reaction again under the same or different reaction conditions, the efficiency is not affected by the reaction inhibition by the salt generated as a by-product in the first-stage reaction. Can be oxidized well.
  • a cellulose chain will decompose
  • the ozone concentration in the gas containing ozone is preferably 50 to 250 g / m 3, and more preferably 50 to 220 g / m 3.
  • the amount of ozone added to the cellulose raw material is preferably 0.1 to 30 parts by mass, and more preferably 5 to 30 parts by mass, when the solid content of the cellulose raw material is 100 parts by mass.
  • the ozone treatment temperature is preferably 0 to 50 ° C., and more preferably 20 to 50 ° C.
  • the ozone treatment time is not particularly limited, but is about 1 to 360 minutes, and preferably about 30 to 360 minutes. When the conditions for the ozone treatment are within these ranges, the cellulose can be prevented from being excessively oxidized and decomposed, and the yield of oxidized cellulose is improved.
  • an additional oxidation treatment may be performed using an oxidizing agent.
  • the oxidizing agent used for the additional oxidation treatment is not particularly limited, and examples thereof include chlorine compounds such as chlorine dioxide and sodium chlorite, oxygen, hydrogen peroxide, persulfuric acid, and peracetic acid. For example, these oxidizing agents can be dissolved in a polar organic solvent such as water or alcohol to prepare an oxidizing agent solution, and a cellulose raw material can be immersed in the solution for additional oxidation treatment.
  • the amount of carboxyl groups in the oxidized cellulose can be adjusted by controlling the reaction conditions such as the amount of the oxidant added and the reaction time.
  • the fiber length and the fiber diameter can be determined from an electron microscope image or an atomic force microscope image of the cellulose fiber.
  • Canadian standard freeness can be measured based on the Canadian standard freeness measurement method (JIS P 8121: 2012).
  • the amount of carboxyl groups or carboxylate groups relative to the absolutely dry mass of the oxidized cellulose fiber is 0.1 to 2.0 mmol / g.
  • the amount of acid groups is less than 0.1 mmol / g, the amount of metal ions described below existing on the surface of the cellulose fiber is not sufficient, and the deodorizing function is poor.
  • the amount of acid groups exceeds 2.0 mmol / g, the drainage during paper making using oxidized cellulose fibers deteriorates and the dehydration load increases.
  • the metal ion-containing cellulose fiber of the present invention is composed of one or more metal elements selected from the group consisting of Ag, Au, Pt, Pd, Ni, Mn, Fe, Ti, Al, Zn and Cu with respect to the oxidized cellulose fiber.
  • the Canadian standard freeness (CSF) of the metal ion-containing cellulose fiber is 30 to 400 ml.
  • the lower limit of the total content of ions of the above metal elements relative to the metal-containing cellulose fiber is preferably 10 mg / g.
  • the total content of ions of the above metal elements relative to the metal-containing cellulose fiber is preferably 10 to 60 mg / g.
  • the total content of ions of the metal elements is less than 10 mg / g, the amount of metal ions described below existing on the surface of the cellulose fiber is not sufficient, and the deodorizing function may be inferior. If the total content of metal element ions exceeds 60 mg / g, the cost may increase.
  • the freeness (CSF) of the metal ion-containing cellulose fiber is 30 to 400 ml.
  • CSF freeness
  • the surface area is increased at the nanofiber portion, and the deodorizing effect and the antibacterial effect can be enhanced.
  • the deodorizing effect in a wet state is improved.
  • the fiber is completely made into nanofibers, the fiber is completely disaggregated, and the yield decreases when paper is made by blending with pulp. Deodorizing effect is reduced.
  • nanofibration refers to making a fiber obtained by defibrating metal ion-containing cellulose fibers to a fiber diameter of 100 nm or less.
  • the degree of nanofiber formation is reflected in the freeness (CSF). That is, when the freeness (CSF) of the metal ion-containing cellulose fiber is less than 30 ml, the nano-fiber is too much, the deodorizing effect is reduced due to the decrease in yield to the sheet, and the freeness (CSF) exceeds 400 ml. In addition, the deodorizing effect is reduced due to insufficient nanofiber formation. Thus, by setting the freeness (CSF) of the metal ion-containing cellulose fiber to 30 to 400 ml, the deodorizing effect and the antibacterial effect are improved, and in particular, the deodorizing effect in a wet state is improved.
  • the freeness (CSF) of the metal ion-containing cellulose fiber is 50 to 200 ml, the deodorizing effect and the antibacterial effect are improved, and in particular, the deodorizing effect in a wet state is improved.
  • the freeness of the metal ion-containing cellulose fibers can be adjusted by adding metal ions to the oxidized cellulose fibers subjected to the beating treatment, or by applying beating treatment to the cellulose fibers containing the metal ions.
  • the average fiber length of the metal ion-containing cellulose fiber is 0.5 to 2.5 mm and the average fiber diameter is 10 to 40 ⁇ m, it can be neatly dispersed when mixed with other components (general pulp, etc.) and cellulose It is preferable because properties such as a high specific surface area derived from fibers can be obtained.
  • the average fiber length and the average fiber diameter are obtained by separating 0.1 g of metal ion-containing cellulose fibers and calculating the length weighted average fiber length and the length weighted average fiber diameter using a fiber tester manufactured by L & W.
  • the metal ion-containing cellulose fiber can be obtained by bringing a metal compound aqueous solution into contact with oxidized cellulose fiber having a carboxyl group or a carboxylate group on the surface.
  • the metal ions derived from the metal compound form an ionic bond or coordinate with the carboxylate group by bringing the aqueous solution containing the oxidized metal fiber and the above metal compound into contact.
  • the metal compound aqueous solution is an aqueous solution of a metal salt.
  • metal salts include complexes (complex ions), halides, nitrates, sulfates, and acetates.
  • the concentration of the aqueous metal compound solution is not particularly limited, but is preferably 10 to 80 parts by mass, more preferably 30 to 60 parts by mass with respect to 100 parts by mass of the cellulose fibers.
  • the time for contacting the metal compound may be appropriately adjusted.
  • the temperature at the time of contact is not particularly limited, but 20 to 40 ° C. is preferable.
  • the pH of the liquid at the time of contacting is not particularly limited. However, when the pH is low, it is difficult for metal ions to bind to the carboxyl group, so 7 to 13 is preferable, and pH 8 to 12 is particularly preferable.
  • a method for producing a metal ion-containing cellulose fiber is exemplified below.
  • Canadian standard freeness, average fiber diameter, average fiber of cellulose fibers containing metal ions after adding metal ions to oxidized cellulose fibers having a carboxyl group or carboxylate group content of 0.1 to 2.0 mmol / g Adjust the length to the above range.
  • Metal ions are added to oxidized cellulose fibers having a carboxyl group or carboxylate group amount of 0.1 to 2.0 mmol / g, adjusted for Canadian standard freeness, average fiber diameter, and average fiber length.
  • the residual amount of metal ions can be kept low, and in the manufacturing method of 2), metal ions can be added efficiently.
  • the oxidized cellulose fiber contains metal ions can be confirmed by a scanning electron microscope image and ICP emission analysis of the extract with a strong acid. That is, the presence of metal ions cannot be confirmed in the scanning electron microscope image, while it can be confirmed that the metal ions are contained in the ICP emission analysis.
  • the metal particles can be confirmed by a scanning electron microscope image, so the presence or absence of metal ions can be determined.
  • the presence or absence of metal ions can also be determined by scanning electron microscope images and element mapping. That is, metal ions cannot be confirmed in a scanning electron microscope image, but the presence of metal ions can be confirmed by elemental mapping.
  • the sanitary thin paper of the present invention contains the metal-containing cellulose fibers described above.
  • the sanitary thin paper of the present invention preferably contains 2 to 30% by mass of the above metal-containing cellulose fiber.
  • CSF freeness
  • the proportion of the metal ion-containing cellulose fibers in the sanitary thin paper is less than 2% by mass, the deodorizing function may be lowered. If the ratio of the metal ion-containing cellulose fiber exceeds 30% by mass, the cost may increase.
  • the sanitary thin paper according to the embodiment of the present invention can be manufactured by making a papermaking raw material containing cellulose fibers.
  • a papermaking raw material other than the cellulose fiber for example, virgin pulp such as softwood pulp (NBKP) or hardwood pulp (LBKP), or used paper pulp regenerated from used paper can be used. These pulps are appropriately blended in predetermined types and blending ratios according to the required quality of sanitary paper.
  • Various chemicals may be added (internally added) to the papermaking raw material for the required quality and stable operation. These chemicals include softeners, bulking agents, dyes, dispersants, wet paper strength enhancers, and drying agents. Examples thereof include paper strength agents, drainage improvers, pitch control agents, yield improvers, and the like.
  • the basis weight of the obtained sanitary thin paper can be set to 7 to 40 g / m 2 , for example. Further, as the strength of the sanitary thin paper, the GMT value ⁇ (DMD ⁇ DCD) 1/2 ⁇ can be set to 60 to 420 (N / m). DMD and DCD are the tensile strengths in the MD direction and CD direction when drying sanitary thin paper, respectively, and are measured according to JIS P8113. However, the sample width at the time of measurement is 25 mm, and the unit of DMD and DCD is “N / m”.
  • the sanitary paper according to the embodiment of the present invention can be manufactured by a known papermaking method.
  • the metal ion-containing cellulose fiber is defibrated (beaten) to a freeness (CSF) of 30 to 400 ml.
  • CSF freeness
  • the metal ions may be supported.
  • the freeness tends to increase, so the freeness of oxidized cellulose fibers before containing metal ions is lower than 30 to 400 ml. What is necessary is just to set so that the freeness may fall in the range of 30-400 ml by adjusting to a predetermined value and containing a metal ion.
  • a papermaking raw material obtained by appropriately mixing the beaten metal ion-containing cellulose fibers and pulp is supplied from a raw material tank, and further diluted with white water to prepare a paper stock.
  • This debris is degassed for screening and sent to the stock inlet with a fan pump.
  • the stock inlet supplies paper with a proper concentration, speed, and angle over the entire wire width of the paper machine, with a uniform, floc-free (small lump), and well-dispersed fiber so as not to cause flow streaks.
  • As the stock inlet there are a head box, a pressurization type, a hydraulic type, etc. which are installed in a high place with the atmosphere open, and any of them may be adopted.
  • a stock is jetted from the stock inlet between the wire and the felt to form a sheet (web, wet paper) on the felt.
  • the web formed between the wire and the felt is closely transferred to the Yankee dryer with a pressure roll.
  • the web is dried by a Yankee dryer and a Yankee dryer hood, peeled off from the Yankee dryer while being creped by a creping doctor, and wound on a reel via a reel drum.
  • a Yankee dryer is a drum made of cast iron or cast steel for drying a web, and its outer diameter is generally 2.4 to 6 m.
  • creping is a method in which a paper is mechanically compressed in the longitudinal direction (machine traveling direction) to form a wavy wrinkle called crepe, and the bulk (feeling of bulk), softness, water absorption on sanitary paper. Properties, surface smoothness, aesthetics (crepe shape) and the like. Then, a crepe is formed by the creping doctor due to the speed difference between the Yankee dryer and the reel (reel speed ⁇ yankee dryer speed). Although the crepe characteristics depend on the speed difference, if the basis weight of the base paper on the Yankee dryer is 7 to 40 g / m 2 , the basis weight on the reel is approximately 9 to 50 g / m 2 . It becomes larger than the above basis weight.
  • the quality of the crepe and the operability of the creping are substantially determined by the crepe rate.
  • the crepe rate is preferably in the range of 10 to 50%.
  • FIG. 1 is an external view of an absorbent article (pants-type paper diaper) 200 according to the first embodiment of the present invention.
  • the absorbent article 200 includes a water absorbent article main body 20 having water absorption, and an exterior body 100 that holds the water absorbent article main body 20 inside and forms a pants shape.
  • the exterior body 100 can be made of a nonwoven fabric made of a thermoplastic resin such as polypropylene, polyester, or polyethylene and manufactured by a spunbond or air-through manufacturing method.
  • the exterior body 100 is preferably configured by laminating two or more sheets having at least an exterior sheet and an interior sheet.
  • the water-absorbent article main body 20 is elongated, the width near the center in the longitudinal direction is slightly narrower, and is disposed between the crotch of the absorbent article 200.
  • FIG. 2 is a cross-sectional view of the water absorbent article main body 20 taken along the line AA in FIG.
  • the water absorbent article main body 20 includes a liquid-permeable hydrophilic surface sheet (top sheet, outer layer sheet) 2 that forms a body contact side surface (upper surface in FIG. 2), a liquid-impermeable back sheet 6, and a hydrophilic It arrange
  • the absorbent cores 4a and 4b are covered with core wrap sheets 10a and 10b, respectively.
  • both side portions of the water absorbent article main body portion 20 stand up as a three-dimensional gather 30 composed of a water-repellent side sheet to prevent side leakage of urine and the like.
  • the absorbent cores 4a and 4b respectively covered with the core wrap sheets 10a and 10b are laminated so that the absorbent core 4a faces the hydrophilic surface sheet 2 side, and the width of the absorbent core 4a.
  • the width of the absorbent core 4b is about 1 ⁇ 2 compared to FIG.
  • One absorbent core and one core wrap sheet for wrapping the absorbent core may be provided for each water absorbent article main body 20.
  • the hydrophilic surface sheet 2 is made of a non-woven fabric and is in contact with the wearer's skin, so it is preferable that the hydrophilic surface sheet 2 be formed of a material that is soft to the touch and does not irritate the skin.
  • an air-through nonwoven fabric, a point bond nonwoven fabric, a spunbond nonwoven fabric, a spunlace nonwoven fabric, or the like made of a synthetic fiber such as polypropylene, polyethylene, or polyester can be used.
  • an air-through nonwoven fabric with a small liquid return amount is suitable.
  • the back sheet 6 only needs to be formed from a liquid-impermeable material having a waterproof property so that liquid or the like held in the water-absorbent article main body 20 does not leak into the underwear, such as a breathable polyethylene film.
  • a liquid-impermeable material having a waterproof property so that liquid or the like held in the water-absorbent article main body 20 does not leak into the underwear, such as a breathable polyethylene film.
  • a thin plastic film such as a breathable polyethylene film.
  • a moisture-permeable film may be used as the back sheet 6 to reduce stuffiness.
  • the absorbent cores 4a and 4b can be formed by mixing hydrophilic fibers (fluff) such as wood fluff pulp and particles of super absorbent polymer (SAP). Moreover, you may use what is called a SAP sheet which made SAP a sheet form. As the hydrophilic fiber, synthetic fiber, polymer fiber, or the like may be used instead of the wood pulp fluff. Moreover, you may mix
  • the present invention is not limited to the above-described embodiments, and extends to various modifications and equivalents included in the spirit and scope of the present invention.
  • the metal ion-containing cellulose fibers are made on sanitary thin paper, but other various papers (such as cardboard, copy paper, printing paper, etc.) may be made, and the type of paper is not limited.
  • an absorptive article is not restricted to the above-mentioned underpants type paper diaper, for example, it is a long and slender piece like a sanitary napkin, and the type which hits a local part may be sufficient.
  • the liquid-permeable outer layer sheet 2 covers only one surface (body contact side surface) of the absorbent core 4a. However, both surfaces of the absorbent core are covered with the liquid-permeable outer layer sheet, and the absorbent article. It may be possible to absorb urine and the like from both the front and back surfaces.
  • the core wrap sheet is not limited to the one covering the absorbent core, and may be used by being laminated on the surface of the absorbent core. When a plurality of absorbent cores are stacked, a core wrap sheet may be interposed between the absorbent cores.
  • Example 1 500 g of cellulose raw material (bleached unbeaten kraft pulp derived from coniferous tree) (absolutely dried) was added to 500 ml of an aqueous solution in which 780 mg of TEMPO (Sigma Aldrich) and 75.5 g of sodium bromide were dissolved, and stirred until the pulp was uniformly dispersed. .
  • An aqueous sodium hypochlorite solution was added to the reaction system to 6.0 mmol / g to initiate the oxidation reaction. During the reaction, the pH in the system was lowered, but a 3M sodium hydroxide aqueous solution was sequentially added to adjust the pH to 10.
  • the reaction was terminated when sodium hypochlorite was consumed and the pH in the system no longer changed.
  • the mixture after the reaction was filtered through a glass filter, and the pulp was separated and washed with water to obtain an oxidized cellulose fiber having an acid value of 1.6 mmol / g.
  • the oxidized cellulose fiber obtained above was beaten using a Niagara beater until the Canadian standard freeness (CSF) reached 230 ml.
  • the fiber length / fiber diameter of the oxidized cellulose fiber after the beating treatment was 0.80 mm / 20 ⁇ m.
  • FIG. 3 when the oxidized cellulose fiber after beating of Example 1 was observed with a transmission electron microscope, a part of the cellulose fiber was converted to a nanofiber, and the fine nanofiber was in the region indicated by the arrow. It was confirmed that the surface area was increased by spreading (spreading).
  • ⁇ Measuring method of average fiber length and average fiber diameter The metal ion containing cellulose fiber 0.1g was disaggregated, and length weighted average fiber length and length weighted average fiber diameter were computed using Fiber Tester by L & W.
  • the carboxyl group content of the obtained oxidized pulp was 1.64 mmol / g.
  • the reaction was terminated when sodium hypochlorite was consumed and the pH in the system no longer changed.
  • the mixture after the reaction was filtered through a glass filter, and the pulp was separated and washed with water to obtain an oxidized cellulose fiber having an acid value of 1.6 mmol / g.
  • the oxidized cellulose fiber obtained above was beaten using a Niagara beater until the Canadian standard freeness (CSF) reached 230 ml.
  • the fiber length / fiber diameter of the oxidized cellulose fiber after the beating treatment was 0.8 mm / 20 ⁇ m.
  • Example 2 The oxidized cellulose fiber (freezing degree 230 ml) after the beating treatment of Reference Example 1 is adjusted to pH 9, 1.6 mmol of metal salt (CuCl2) aqueous solution per 1 g of oxidized cellulose fiber is added and stirred, and Cu ions are contained in the oxidized cellulose fiber. Thereafter, washing was performed to remove unreacted metal salts.
  • the metal ion content of the obtained metal ion-containing cellulose fiber was 32 mg per 1 g of the metal ion-containing cellulose fiber.
  • Example 3 Metal ion-containing cellulose fibers were obtained in the same manner as in Example 2 except that CuCl2 was changed to an AgNO3 aqueous solution, pH 7, as the metal salt aqueous solution.
  • the metal ion content of the obtained metal ion-containing cellulose fiber was 20 mg per 1 g of the metal ion-containing cellulose fiber.
  • Example 4 The oxidized cellulose fiber (before beating treatment) obtained in Reference Example 1 was beaten using a Niagara beater until the Canadian standard freeness (CSF) reached 35 ml.
  • the fiber length / fiber diameter of the oxidized cellulose fiber after the beating treatment was 0.6 mm / 18 ⁇ m.
  • the oxidized cellulose fiber is adjusted to pH 9, 1.6 mmol of metal salt (CuCl2) aqueous solution per 1 g of oxidized cellulose fiber is added and stirred to contain Cu ions in the oxidized cellulose fiber, and then washed to remove unreacted metal salt. Removed.
  • the metal ion content of the obtained metal ion-containing cellulose fiber was 33 mg per 1 g of the metal ion-containing cellulose fiber.
  • Example 5 The oxidized cellulose fiber (before beating treatment) obtained in Reference Example 1 was beaten using a Niagara beater until the Canadian standard freeness (CSF) reached 380 ml. The fiber length / fiber diameter of the oxidized cellulose fiber after the beating treatment was 2.2 mm / 25 ⁇ m.
  • the oxidized cellulose fiber obtained above was adjusted to pH 9, 1.6 mmol of metal salt (CuCl2) aqueous solution per gram of oxidized cellulose fiber was added and stirred to contain Cu ions in the oxidized cellulose fiber, washed and unreacted. The metal salt was removed.
  • the metal ion content of the obtained metal ion-containing cellulose fiber was 30 mg per 1 g of the metal ion-containing cellulose fiber.
  • Example 6 The oxidized cellulose fiber (freezing degree 230 ml) after the beating treatment of Reference Example 1 is adjusted to pH 9, 1.6 mmol of metal salt (CuCl2) aqueous solution per 1 g of oxidized cellulose fiber is added and stirred, and Cu ions are contained in the oxidized cellulose fiber. Thereafter, washing was performed to remove unreacted metal salts.
  • the metal ion content of the obtained metal ion-containing cellulose fiber was 50 mg per 1 g of the metal ion-containing cellulose fiber.
  • Example 7 The oxidized cellulose fiber (freeness 230 ml) after the beating treatment of Reference Example 1 is adjusted to pH 9, and 0.5 mmol of a metal salt (CuCl2) aqueous solution is added per 1 g of oxidized cellulose fiber and stirred to contain Cu ions in the oxidized cellulose fiber. Thereafter, washing was performed to remove unreacted metal salts.
  • the metal ion content of the obtained metal ion-containing cellulose fiber was 15 mg per 1 g of the metal ion-containing cellulose fiber.
  • Example 2 The oxidized cellulose fiber (before beating treatment) obtained in Reference Example 1 was beaten using a Niagara beater until the Canadian standard freeness (CSF) reached 50 ml. The fiber length / fiber diameter of the oxidized cellulose fiber after the beating treatment was 0.7 mm / 18 ⁇ m.
  • the oxidized cellulose fiber obtained above was adjusted to pH 9, 1.6 mmol of metal salt (CuCl2) aqueous solution per gram of oxidized cellulose fiber was added and stirred to contain Cu ions in the oxidized cellulose fiber, washed and unreacted. The metal salt was removed.
  • the metal ion content of the obtained metal ion-containing cellulose fiber was 30 mg per 1 g of the metal ion-containing cellulose fiber.
  • Example 3 The oxidized cellulose fiber (before beating treatment) obtained in Reference Example 1 was beaten using a Niagara beater until the Canadian standard freeness (CSF) reached 180 ml.
  • the fiber length / fiber diameter of the oxidized cellulose fiber after the beating treatment was 0.8 mm / 20 ⁇ m.
  • the oxidized cellulose fiber obtained above was adjusted to pH 9, 1.6 mmol of metal salt (CuCl2) aqueous solution per gram of oxidized cellulose fiber was added and stirred to contain Cu ions in the oxidized cellulose fiber, washed and unreacted. The metal salt was removed.
  • the metal ion content of the obtained metal ion-containing cellulose fiber was 30 mg per 1 g of the metal ion-containing cellulose fiber.
  • the reaction was terminated when sodium hypochlorite was consumed and the pH in the system no longer changed.
  • the mixture after the reaction was filtered through a glass filter, and the pulp was separated and washed with water to obtain an oxidized cellulose fiber having an acid value of 1.6 mmol / g.
  • the oxidized cellulose fiber obtained above was beaten using a Niagara beater until the Canadian standard freeness (CSF) reached 230 ml.
  • the fiber length / fiber diameter of the oxidized cellulose fiber after the beating treatment was 0.8 mm / 20 ⁇ m.
  • the oxidized cellulose fiber obtained above was adjusted to pH 9, 1.6 mmol of metal salt (CuCl2) aqueous solution per gram of oxidized cellulose fiber was added and stirred to contain Cu ions, and then boron hydride was added. A sodium aqueous solution was added and reduced to produce particles.
  • the unreacted metal salt was removed by washing to obtain a metal particle-supporting cellulose fiber having a metal particle content of 30 mg / g.
  • the presence of metal particles was confirmed with a scanning electron microscope image.
  • the metal particle carrying amount is a value obtained by the same measurement as the above-mentioned metal ion content.
  • Oxidized cellulose fiber, metal ion-containing cellulose fiber, metal particle-supporting cellulose fiber, and kraft pulp are each inserted into 10g (absolutely dry) cocked gas bag with saturated aqueous ammonia solution (2mL ammonia water: 2mL water) with a 1.2mL syringe. Furthermore, 1.5 L of air was filled with an air pump. The saturated gas was collected from the gas phase in a sealed container containing an aqueous ammonia solution. The ammonia gas concentration in the gas bag after filling with saturated gas and air was 80 to 90 ppm. Next, the suction tube and the rubber tube were connected to the detection tube, and the rubber tube was connected to the gas bag. And the ammonia gas concentration in the gas bag 50 minutes after filling with air was measured.
  • Deodorizing effect is very good ⁇ : Deodorizing effect is good ⁇ : Deodorizing effect is slightly ⁇ : Deodorizing effect is scarce
  • Example A Production of metal ion-containing cellulose fiber> After dispersing 5.00 g dry softwood bleached kraft pulp, 39 mg 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) and 514 mg sodium bromide in 500 ml water, The reaction was started by adding 15 mass% sodium hypochlorite aqueous solution so that the amount of sodium hypochlorite was 5.5 mmol with respect to 1 g of pulp (absolutely dry). During the reaction, a 3M NaOH aqueous solution was added dropwise to maintain the pH at 10.0.
  • TEMPO 2,2,6,6-tetramethylpiperidine-1-oxyl
  • the reaction product is filtered through a glass filter, washed with a sufficient amount of water and filtered twice to impregnate water with a solid content of 15% by mass.
  • TEMPO oxidized cellulose fibers were obtained. This TEMPO oxidized cellulose fiber has a carboxyl group or a carboxylate group on its surface. Table 1 shows the acid group amount (per gram of oxidized cellulose fiber) of the TEMPO oxidized cellulose fiber before containing metal ions.
  • the obtained TEMPO oxidized cellulose fibers (which do not contain metal ions at this time) are defibrated (beaten), and the pH and concentration shown in Table 1 are obtained with respect to the obtained TEMPO oxidized cellulose fibers.
  • An aqueous metal salt solution (per gram of TEMPO-oxidized cellulose fiber) was added and stirred. As a result, metal ions were supported on the TEMPO oxidized cellulose fiber.
  • Table 1 shows the content of metal ions with respect to the TEMPO oxidized cellulose fiber.
  • Example B Production of core wrap sheet> Next, the metal ion-containing cellulose fiber after beating and pulp (NBKP and LBKP) are blended at the blending ratio shown in Table 2 to prepare a pulp slurry, papermaking, and core wrap of each example and comparative example A sheet was produced.
  • a commercially available metal (Cu and Ag) ion-carrying zeolite high-density crystallized pulp (trade name Sergaia (registered trademark)) was blended and paper-made to produce a core wrap sheet.
  • the core wrap sheet of each Example was observed with a scanning electron microscope, only paper fibers were confirmed. Further, the core wrap sheet of each example was subjected to ICP ((high frequency inductively coupled plasma) emission analysis of the extract after dissolving with strong acid, and it was confirmed that all contained metal. It turns out that the core wrap sheet
  • ICP (high frequency inductively coupled plasma) emission analysis of the extract after dissolving with strong acid
  • the obtained core wrap sheet was evaluated as follows. ⁇ Basis weight> The basis weight of the obtained core wrap sheet was measured according to JIS P 8124. ⁇ Strength> When the obtained core wrap sheet was inserted into an absorbent article processing machine to produce an absorbent article, the core wrap sheet was inspected for paper breakage and evaluated for strength. If the evaluation is ⁇ or ⁇ , there is no practical problem. A: Very good (no paper breaks during 12 hours production) ⁇ : Good (12 hours or less during 12 hours production) X: Bad (3 times or more during 12 hours production)
  • a saturated gas of an aqueous ammonia solution (2 mL of ammonia water: 2 mL of water) was inserted into a gas bag with a cock containing four test pieces of 5 cm ⁇ 5 cm with a 1.2 mL syringe, and 1.5 L of air was filled with an air pump.
  • the saturated gas was collected from the gas phase in a sealed container containing an aqueous ammonia solution.
  • the ammonia gas concentration in the gas bag after filling with saturated gas and air was 80 to 90 ppm.
  • the suction tube and the rubber tube were connected to the detection tube, and the rubber tube was connected to the gas bag. And the ammonia gas concentration in the gas bag 50 minutes after filling with air was measured.
  • ⁇ Very good residual concentration is 1/5 or less of the initial value
  • ⁇ Good Residual concentration exceeds 1/5 of the initial value and 1/4 or less
  • ⁇ Normal Residual concentration exceeds 1/4 of the initial value and 1/3 or less
  • Poor residual concentration exceeded 1/3 of the initial value.
  • Purified water was added dropwise at a rate of 5 g to 1 g of the test piece, and then evaluated in the same manner to evaluate the deodorizing effect in a wet state. If the evaluation is ⁇ or ⁇ , there is no practical problem.
  • Comparative Examples 12 and 14 in which the freeness of the metal ion-containing cellulose fibers exceeded 200 ml, the deodorization in a wet state was coupled with the small proportion (10% by mass) of the metal ion-containing cellulose fibers. The function was significantly inferior to each example.
  • Comparative Example 14 the metal ion-containing cellulose fiber was used without beating.
  • Comparative Example 13 in which paper was made by blending metal-supported zeolite high-density crystallized pulp (trade name Sergaia (registered trademark)), the fall of fine powder such as paper powder was remarkable, and the strength was lowered. Further, the zeolite adsorbed moisture in a wet state, and the deodorizing function was significantly inferior to each example.

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Abstract

[Problème] L'invention a pour objet de réaliser une fibre de cellulose oxydée dotée d'une fonction désodorisante adéquate, un papier hygiénique mince l'utilisant, et un article absorbant. [Solution] Une fibre de cellulose contenant des ions métalliques selon l'invention présente un indice d'égouttage canadien standard de 30 à 400 ml, la fibre de cellulose contenant des ions métalliques contient un ou plusieurs ions d'éléments métalliques choisis dans le groupe constitué de Ag, Au, Pt, Pd, Ni, Mn, Fe, Ti, Al, Zn, et Cu, dans une fibre de cellulose oxydée où la teneur d'un groupe carboxyle ou d'un groupe carboxylate est de 0,1 à 2,0 mmol/g par rapport à la masse absolue de la fibre de cellulose oxydée.
PCT/JP2016/071352 2015-07-22 2016-07-21 Fibre de cellulose contenant un métal, papier hygiénique mince l'utilisant, et article absorbant WO2017014255A1 (fr)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017133135A (ja) * 2016-01-29 2017-08-03 日本製紙クレシア株式会社 消臭抗菌板紙、及び紙容器
JP2019081988A (ja) * 2017-10-31 2019-05-30 日本製紙株式会社 機能性材料及びその利用
JP2019112756A (ja) * 2017-12-25 2019-07-11 エレテン株式会社 殺菌性高分子ナノファイバー集合体及びこれを用いた乾式衛生用紙
WO2019189611A1 (fr) * 2018-03-30 2019-10-03 日本製紙株式会社 Papier contenant une fibre de cellulose microfibrillaire
WO2019189595A1 (fr) * 2018-03-30 2019-10-03 日本製紙株式会社 Fibres de cellulose microfibrillaire carboxyméthylées et leur composition
WO2019189588A1 (fr) * 2018-03-30 2019-10-03 日本製紙株式会社 Fibres de cellulose microfibrillaire oxydées et composition associée
JP2019172849A (ja) * 2018-03-29 2019-10-10 日本製紙株式会社 変性パルプの製造方法
JP2019170546A (ja) * 2018-03-27 2019-10-10 王子ホールディングス株式会社 吸収性物品
CN110546322A (zh) * 2017-04-27 2019-12-06 日本制纸株式会社 无机粒子复合纤维的制造方法
WO2020195671A1 (fr) * 2019-03-28 2020-10-01 日本製紙株式会社 Fibre cellulosique fibrillée chimiquement modifiée
WO2021054274A1 (fr) * 2019-09-17 2021-03-25 日本製紙株式会社 Procédé de production de fibres de cellulose en microfibrilles modifiées chimiquement
EP3777800A4 (fr) * 2018-03-29 2022-02-23 Daio Paper Corporation Article absorbant

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0252660A (ja) * 1988-08-13 1990-02-22 Kohjin Co Ltd 酸化セルロース系消臭材料
JPH07204148A (ja) * 1994-01-21 1995-08-08 New Oji Paper Co Ltd 抗菌性拭き紙
JPH11315499A (ja) * 1998-04-27 1999-11-16 Toyobo Co Ltd 消臭シート及びそれを用いた消臭製品
JP2002537503A (ja) * 1999-02-24 2002-11-05 エスシーエー ハイジーン プロダクツ ゲゼルシャフト ミト ベシュレンクテル ハフツング 酸化されたセルロース含有繊維材料及びそれから作られた製品
JP2011055884A (ja) * 2009-09-07 2011-03-24 Dai Ichi Kogyo Seiyaku Co Ltd ゲル状芳香・消臭剤組成物およびそれを用いたゲル状芳香・消臭剤
JP2015045113A (ja) * 2013-08-29 2015-03-12 日本製紙株式会社 衛生薄葉紙

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH111895A (ja) * 1997-04-17 1999-01-06 Rengo Co Ltd 衛生用品
JP2004098322A (ja) * 2002-09-05 2004-04-02 Toppan Printing Co Ltd 電気泳動表示パネル搭載型ブックカバー及び電気泳動表示パネル搭載型ファイル
JP2006077367A (ja) * 2004-09-10 2006-03-23 Kyodo Printing Co Ltd 消臭塗工剤及び消臭化粧紙
CN101137789B (zh) * 2005-03-30 2012-09-05 花王株式会社 除臭抗菌纤维制品
JP6257526B2 (ja) 2012-12-19 2018-01-10 日本製紙株式会社 紙基材
JP6442730B2 (ja) * 2013-05-16 2018-12-26 日本製紙株式会社 金属ナノ粒子とセルロース系ファイバーとの複合体の製造方法
JP6095497B2 (ja) 2013-06-14 2017-03-15 花王株式会社 セルロースナノファイバーを含む樹脂組成物の製造方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0252660A (ja) * 1988-08-13 1990-02-22 Kohjin Co Ltd 酸化セルロース系消臭材料
JPH07204148A (ja) * 1994-01-21 1995-08-08 New Oji Paper Co Ltd 抗菌性拭き紙
JPH11315499A (ja) * 1998-04-27 1999-11-16 Toyobo Co Ltd 消臭シート及びそれを用いた消臭製品
JP2002537503A (ja) * 1999-02-24 2002-11-05 エスシーエー ハイジーン プロダクツ ゲゼルシャフト ミト ベシュレンクテル ハフツング 酸化されたセルロース含有繊維材料及びそれから作られた製品
JP2011055884A (ja) * 2009-09-07 2011-03-24 Dai Ichi Kogyo Seiyaku Co Ltd ゲル状芳香・消臭剤組成物およびそれを用いたゲル状芳香・消臭剤
JP2015045113A (ja) * 2013-08-29 2015-03-12 日本製紙株式会社 衛生薄葉紙

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017133135A (ja) * 2016-01-29 2017-08-03 日本製紙クレシア株式会社 消臭抗菌板紙、及び紙容器
CN110546322B (zh) * 2017-04-27 2022-06-03 日本制纸株式会社 无机粒子复合纤维的制造方法
CN110546322A (zh) * 2017-04-27 2019-12-06 日本制纸株式会社 无机粒子复合纤维的制造方法
JP2019081988A (ja) * 2017-10-31 2019-05-30 日本製紙株式会社 機能性材料及びその利用
JP7068802B2 (ja) 2017-10-31 2022-05-17 日本製紙株式会社 機能性材料及びその利用
JP2019112756A (ja) * 2017-12-25 2019-07-11 エレテン株式会社 殺菌性高分子ナノファイバー集合体及びこれを用いた乾式衛生用紙
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US11963857B2 (en) 2018-03-29 2024-04-23 Daio Paper Corporation Absorbent article
JP7068884B2 (ja) 2018-03-29 2022-05-17 日本製紙株式会社 変性パルプの製造方法
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JPWO2019189593A1 (ja) * 2018-03-30 2021-02-12 日本製紙株式会社 酸化ミクロフィブリルセルロース繊維およびその組成物
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WO2019189590A1 (fr) * 2018-03-30 2019-10-03 日本製紙株式会社 Fibres de cellulose microfibrillaire carboxyméthylées et composition associée
JPWO2019189611A1 (ja) * 2018-03-30 2021-04-01 日本製紙株式会社 ミクロフィブリルセルロース繊維を含有する紙
JPWO2019189590A1 (ja) * 2018-03-30 2021-04-08 日本製紙株式会社 カルボキシメチル化ミクロフィブリルセルロース繊維およびその組成物
JPWO2019189595A1 (ja) * 2018-03-30 2021-04-08 日本製紙株式会社 カルボキシメチル化ミクロフィブリルセルロース繊維およびその組成物
JP7239561B2 (ja) 2018-03-30 2023-03-14 日本製紙株式会社 ミクロフィブリルセルロース繊維を含有する紙
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US11466405B2 (en) 2018-03-30 2022-10-11 Nippon Paper Industries Co., Ltd. Carboxymethylated microfibrillated cellulose fibers and composition thereof
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