WO2013065829A1 - Adsorbant de substance radioactive, procédé pour le fabriquer, et article textile contenant un adsorbant de substance radioactive - Google Patents

Adsorbant de substance radioactive, procédé pour le fabriquer, et article textile contenant un adsorbant de substance radioactive Download PDF

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Publication number
WO2013065829A1
WO2013065829A1 PCT/JP2012/078498 JP2012078498W WO2013065829A1 WO 2013065829 A1 WO2013065829 A1 WO 2013065829A1 JP 2012078498 W JP2012078498 W JP 2012078498W WO 2013065829 A1 WO2013065829 A1 WO 2013065829A1
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Prior art keywords
radioactive
fiber
nonwoven fabric
adsorbent
metal phthalocyanine
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PCT/JP2012/078498
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English (en)
Japanese (ja)
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築城寿長
檜垣誠吾
地本健二
Original Assignee
ダイワボウホールディングス株式会社
ダイワボウノイ株式会社
ダイワボウプログレス株式会社
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Priority to JP2013507492A priority Critical patent/JP5237510B1/ja
Publication of WO2013065829A1 publication Critical patent/WO2013065829A1/fr

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G13/00—Protecting plants
    • A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28023—Fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/2803—Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
    • B01J20/28038—Membranes or mats made from fibers or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
    • B01J20/3206—Organic carriers, supports or substrates
    • B01J20/3208—Polymeric carriers, supports or substrates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3242—Layers with a functional group, e.g. an affinity material, a ligand, a reactant or a complexing group
    • B01J20/3244—Non-macromolecular compounds
    • B01J20/3265—Non-macromolecular compounds with an organic functional group containing a metal, e.g. a metal affinity ligand
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B62/00—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves
    • C09B62/02—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group directly attached to a heterocyclic ring
    • C09B62/04—Reactive dyes, i.e. dyes which form covalent bonds with the substrates or which polymerise with themselves with the reactive group directly attached to a heterocyclic ring to a triazine ring
    • C09B62/10—Porphines; Azaporphines
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/14—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using phthalocyanine dyes without vatting
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/02—Treating gases
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04—Treating liquids
    • G21F9/06—Processing
    • G21F9/12—Processing by absorption; by adsorption; by ion-exchange
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/28—Treating solids
    • G21F9/30—Processing

Definitions

  • the present invention relates to a radioactive material adsorbent capable of removing radioactive substances, a method for producing the same, and a textile product including the same.
  • cesium 137 (cesium has 39 types of isotopes) is a medium-life fission product, which is responsible for the radioactivity generated in the area surrounding the Chernobyl nuclear power plant accident. Since cesium 137 has a long half-life of 30 years and a low neutron capture rate, it cannot be treated by neutron capture and must wait for natural decay.
  • radioactive materials such as cesium 137 and strontium 90 enter the body, they radiate beta and gamma rays to the intestines and liver through the flow of blood, accumulate in muscles by replacing potassium, and then are discharged outside the body through the kidneys.
  • radioactive substances such as cesium 137 and strontium 90 are taken into the body and discharged out of the body, they cause beta exposure and gamma radiation and cause exposure in the body. . Therefore, the development of technology for removing radioactive substances such as cesium has become an important issue requiring urgent.
  • porous materials such as zeolite and molecular sieves are known as materials that adsorb radioactive materials such as cesium.
  • radioactive materials such as cesium.
  • these porous substances are fixed on the fiber together with the binder, many of the pores are blocked, resulting in a problem that the adsorbing ability is deteriorated.
  • Patent Document 1 it is proposed to use a cellulosic fiber carrying a ferrocyanide as a radionuclide and a heavy metal scavenger.
  • Patent Document 2 discloses a method of recovering and removing toxic metals such as cesium dissolved in hot springs, and a polymer substrate mainly composed of polymer fibers, and graft polymerization on the polymer substrate. There has been proposed a method of passing hot spring water through a metal adsorbent having an introduced graft chain and a chelate-forming group introduced into the graft chain.
  • the present invention provides a radioactive substance adsorbent as a novel fiber material for removing radioactive substances, a method for producing the same, and a fiber product including the same.
  • the present invention relates to a radioactive material adsorbent composed of a fiber material, and relates to a radioactive material adsorbent in which a metal phthalocyanine compound is supported on the fiber material.
  • the present invention is also a method for producing a radioactive material adsorbent comprising a fiber material, wherein the fiber material is impregnated or coated with a solution containing a metal phthalocyanine compound or a dispersion containing a metal phthalocyanine compound, Further, the present invention relates to a method for producing a radioactive material adsorbent on which the metal phthalocyanine compound is supported.
  • this invention relates to the textiles containing the said radioactive substance adsorbent.
  • the present invention can provide a radioactive substance adsorbent that removes radioactive substances by supporting a metal phthalocyanine compound on a fiber material.
  • suction performance can be provided by including the said radioactive substance adsorbent in textiles.
  • the radioactive substance adsorbent of the present invention selectively adsorbs radioactive substances such as iodine, cesium, and strontium that have accumulated on the ground together with dust and dirt in the atmosphere due to the influence of rainfall, etc. Incorporation of radioactive substances such as iodine, cesium, and strontium into the human body can be prevented.
  • the textile product containing the radioactive substance adsorbent of the present invention is placed in the living environment, it is possible to prevent the radioactive substance such as iodine, cesium, and strontium from being taken into the human body.
  • the metal phthalocyanine compound can be easily supported on the fiber material.
  • FIG. 1 is a schematic cross-sectional view illustrating a cesium adsorption test in one embodiment of the present invention.
  • metal phthalocyanine compound a compound containing a metal phthalocyanine as an active ingredient
  • metal phthalocyanine compound is highly adsorbable with respect to the radioactive substance.
  • metal phthalocyanine compound has a planar structure centered on a metal ion such as a copper ion. Since the metal phthalocyanine compound has such a planar structure, stacking (a crystal structure in which the planes overlap) is easily made.
  • a moderate space is formed between the stacked phthalocyanine planes due to steric hindrance and interaction between metal ions. Therefore, when a metal phthalocyanine compound is supported on a support such as a fiber material, it is interfered by the molecules of fibers such as cellulose and polyester, thereby creating a stack with a larger distance between layers than the case of a single metal phthalocyanine compound. It is estimated that radioactive materials such as iodine, cesium, and strontium having a relatively large ionic radius can be captured.
  • the radioactive substance adsorbent of the present invention and the fiber product including the radioactive substance adsorbent are particularly excellent in the radioactive substance adsorbing performance when the radioactive substance is cesium. That is, the radioactive substance adsorbent of the present invention and the fiber product containing the radioactive substance adsorbent are particularly excellent in cesium adsorption performance.
  • the radioactive substance adsorbent is composed of a fiber material carrying a metal phthalocyanine compound. Specifically, a metal phthalocyanine compound having a high adsorptivity to a radioactive substance is supported on a fiber material, and the metal phthalocyanine compound supported on the fiber material adsorbs the radioactive substance.
  • the metal phthalocyanine compound is not particularly limited.
  • a metal phthalocyanine dye or a metal phthalocyanine pigment containing a metal element such as copper, cobalt, or iron can be used.
  • Examples of the copper phthalocyanine dyes include copper phthalocyanine tetrasulfonate sodium, copper phthalocyanine trisulfonate sodium, copper phthalocyanine disulfonate sodium, copper phthalocyanine monosulfonate sodium and a mixture thereof, polyhalogenated copper phthalocyanine tetrasulfonate sodium, Sodium polyhalogenated copper phthalocyanine trisulfonate, sodium polyhalogenated copper phthalocyanine disulfonate, sodium polyhalogenated copper phthalocyanine monosulfonate, and mixtures thereof can be used.
  • metal phthalocyanine compound examples include a copper phthalocyanine dye “Reactive Blue 21” manufactured by Sumitomo Chemical Co., Ltd. represented by the following general formula (2) and a copper phthalocyanine pigment “manufactured by Dainichi Seika Kogyo Co., Ltd.” Commercial products such as “Blue FLGB Conc” can be used.
  • the fiber material is not particularly limited, and for example, a fiber material composed of fibers such as cellulosic fibers, polyester fibers, acrylic fibers, nylon fibers, olefin fibers, and the like can be used. Especially, it is preferable that it is a fiber raw material comprised from the 1 or more types of fiber chosen from the group which consists of a cellulosic fiber and a polyester fiber from a viewpoint of workability and cost.
  • the cellulose fiber is not particularly limited, and natural cellulose fibers such as cotton and hemp, regenerated cellulose fibers such as rayon, and the like can be used.
  • rayon fibers are preferable from the viewpoint of processability and cost, and rayon fibers having a primary swelling degree of 150 to 500% (hereinafter also referred to as amorphous rayon fibers) are more preferred, and a primary swelling degree is 200 to 500%. More preferred is 300% rayon fiber.
  • the primary degree of swelling refers to the degree of swelling measured after the production of regenerated cellulose fibers by a wet spinning method and without passing through the drying step, and the degree of secondary swelling measured after passing through the drying step. Differentiated. Specifically, the primary swelling degree is measured according to JIS L-1015 7.25. When the primary swelling degree of the rayon fiber is 150 to 500%, the metal phthalocyanine compound can be easily supported and has sufficient strength to withstand practical use even in the fiber form.
  • the form of the fiber material is not particularly limited, and may be any form such as fiber, yarn, woven fabric, knitted fabric, non-woven fabric, powder, and paper.
  • the radioactive material adsorbent may be any material as long as a metal phthalocyanine compound is supported on the fiber material, and the form thereof is not particularly limited.
  • fibers, yarns, woven fabrics, knitted fabrics, and nonwoven fabrics are used. Any form of powder, paper, etc. may be used.
  • the form of the fiber is not particularly limited, and may be a long fiber or a short fiber.
  • the form of the yarn is not particularly limited, and may be a spun yarn or a filament yarn.
  • the form of the nonwoven fabric is not particularly limited and may be any of a thermal bond nonwoven fabric, a spunbond nonwoven fabric, a spunlace nonwoven fabric, a needle punch nonwoven fabric, a melt blown nonwoven fabric, a chemical bond nonwoven fabric, and the like.
  • the woven fabric is not particularly limited, and may be a woven fabric having any structure such as plain weave, twill weave, satin weave, or the like.
  • the knitted fabric is not particularly limited, and may be, for example, a circular knitting, a flat knitting, or a warp knitting.
  • Examples of the form of the powder include a powder or thread that is cut or pulverized into a powder form.
  • Examples of the paper form include wet papermaking of fibers cut to a fiber length of 2 to 20 mm.
  • the amount of the metal phthalocyanine dye supported is not particularly limited as long as it can exhibit an effect of adsorbing a radioactive substance such as cesium, but from the viewpoint of being more excellent in the adsorption performance of the radioactive substance.
  • the content is preferably 0.1 to 15% by mass, more preferably 10 to 15% by mass, and still more preferably 12 to 15% by mass.
  • the support of the metal phthalocyanine compound on the fiber material is not particularly limited, but from the viewpoint of facilitating the support of the metal phthalocyanine compound, the fiber material is impregnated with a solution containing the metal phthalocyanine compound or a dispersion containing the metal phthalocyanine compound. This can be done by coating.
  • the metal phthalocyanine compound is a metal phthalocyanine dye
  • the fiber material can be impregnated with or coated with a solution containing the metal phthalocyanine dye, and the fiber material can carry the metal phthalocyanine compound.
  • it can be performed by dyeing the fiber material in a dye bath containing a metal phthalocyanine dye.
  • the dyeing can be performed by a dip dyeing method, a printing method, or the like.
  • the textile printing method include methods such as screen printing, gravure printing, and coating.
  • the metal phthalocyanine compound is a metal phthalocyanine pigment
  • the fiber material can be impregnated or coated with a pigment dispersion containing a metal phthalocyanine pigment and a binder, and the fiber material can carry the metal phthalocyanine compound.
  • a metal phthalocyanine pigment may be supported by being fixed with a binder or the like.
  • the fiber is immersed in a dye bath containing a metal phthalocyanine compound, for example, a metal phthalocyanine dye, so that the metal phthalocyanine compound is supported on the fiber to obtain the radioactive material adsorbent. be able to.
  • a metal phthalocyanine compound for example, a metal phthalocyanine dye
  • the yarn is immersed in a dye bath containing a metal phthalocyanine compound, for example, a metal phthalocyanine dye, so that the metal phthalocyanine compound is supported on the yarn to obtain the radioactive material adsorbent.
  • a metal phthalocyanine compound for example, a metal phthalocyanine dye
  • the radioactive substance adsorbent in powder form can be obtained by shortly cutting or grinding the radioactive substance adsorbent in fiber form or thread form into powder.
  • the fiber length of the powder is, for example, preferably 5 to 1000 ⁇ m, and more preferably 100 to 500 ⁇ m.
  • the radioactive material adsorbent is in the form of a non-woven fabric
  • the non-woven fabric is immersed in a dye bath containing a metal phthalocyanine compound, for example, a metal phthalocyanine dye, so that the metal phthalocyanine compound is supported on the non-woven fabric
  • a metal phthalocyanine compound such as a metal phthalocyanine pigment may be supported on the surface of the nonwoven fabric by fixing it with a binder or the like.
  • the radioactive substance adsorbent in powder form may be fixed to the surface of the nonwoven fabric with a binder or the like. Or you may manufacture a nonwoven fabric using the radioactive substance adsorption material of the said fiber form individually or in combination with another fiber.
  • the radioactive material adsorbent is in the form of a woven fabric or a knitted fabric
  • the woven fabric or the knitted fabric is immersed in a dye bath containing a metal phthalocyanine compound, for example, a metal phthalocyanine dye, so that the metal phthalocyanine compound is supported on the woven fabric or the knitted fabric.
  • a metal phthalocyanine compound such as a metal phthalocyanine pigment may be supported on the surface of the woven or knitted fabric by fixing it with a binder or the like.
  • the radioactive material adsorbent in powder form may be fixed to the surface of the woven or knitted fabric with a binder or the like. Or you may manufacture a textile fabric or a knitted fabric using the said radioactive material adsorbent of a thread form individually or in combination with another thread
  • the radioactive material adsorbent is in paper form, for example, by immersing the paper in a dye bath containing a metal phthalocyanine compound, for example, a metal phthalocyanine dye, the metal phthalocyanine compound is supported on the paper and the radioactive material adsorbent is used.
  • a metal phthalocyanine compound such as a metal phthalocyanine pigment may be supported on the paper surface by fixing it with a binder or the like.
  • the radioactive material adsorbent in the form of fibers may be cut to a fiber length of 2 to 20 mm and wet papermaking.
  • the content (concentration) of the metal phthalocyanine dye in the solution (dye bath) containing the metal phthalocyanine dye is the mass of the fiber material. It is preferable that it is 10 mass% or more with respect to it, More preferably, it is 12 mass% or more, More preferably, it is 15 mass% or more. From the viewpoint of preventing dye peeling, the content (concentration) of the metal phthalocyanine dye is preferably 50% by mass or less based on the mass of the fiber material.
  • the content (concentration) of the metal phthalocyanine pigment is preferably 0.5 to 25% by mass, more preferably 2 to 20% by mass with respect to the dispersion, The content is preferably 20 to 90% by mass, more preferably 40 to 60% by mass with respect to the dispersion.
  • the binder is not particularly limited, but from the viewpoint of uniformly dispersing the metal phthalocyanine pigment, an acrylic binder, a urethane binder, and a vinyl acetate binder are preferable, and an acrylic binder is more preferable.
  • an acrylic binder for example, Matsumin Super White RBW4TMO manufactured by Matsui Dye Chemical Co., Ltd. can be used.
  • a ferrocyanide may be further supported on the fiber material.
  • the combined use of the metal phthalocyanine compound and the ferrocyanide further improves the adsorption performance for radioactive substances such as cesium.
  • the ferrocyanide is not particularly limited, but iron ferrocyanide is preferable from the viewpoint of excellent adsorption performance for the radioactive substance.
  • bitumen can be used as the ferrocyanide.
  • the above-mentioned ferrocyanide such as bitumen is added to a dispersion containing a metal phthalocyanine pigment and a binder, and fixed to the fiber material together with the metal phthalocyanine pigment by screen printing, gravure printing, coating, spraying, application by brush, etc. Dyeing).
  • a dispersion containing a ferrocyanide such as bitumen and a binder is fixed to a fiber material such as a woven fabric, a knitted fabric, or a non-woven fabric already supporting a metal phthalocyanine compound by screen printing, gravure printing, coating, spraying, brush application, etc.
  • the ferrocyanide may be supported by (dyeing).
  • a powdered radioactive material adsorbent supporting only a metal phthalocyanine compound, a ferrocyanide such as bitumen, and a dispersion containing a binder by screen printing, gravure printing, coating, spraying, brushing, etc.
  • the ferrocyanide may be supported by being fixed (dyed) to a fiber material such as a nonwoven fabric.
  • the fixed amount (dyeing) of the metal phthalocyanine pigment is preferably 0.05 to 30 g per unit area (1 m 2 )
  • the fixed amount (dyeing) of the ferrocyanide is preferably Is 0.05 to 10 g per unit area (1 m 2 ).
  • the content (concentration) of ferrocyanide is preferably 0.1 to 10% by mass, more preferably 1 to 5% by mass with respect to the dispersion.
  • the content (concentration) of the metal phthalocyanine pigment is preferably 0.1 to 20% by mass, more preferably 0.5 to 15% by mass with respect to the dispersion, Preferably, it is 1 to 10% by mass.
  • the radioactive substance adsorbent preferably has a radioactive substance adsorption rate of 30% or more, more preferably 50% or more, still more preferably 80% or more, and particularly preferably 90% or more.
  • the radioactive material adsorbent preferably has a cesium adsorption rate of 30% or more, more preferably 50% or more, still more preferably 80% or more, and particularly preferably 90% or more.
  • the cesium adsorption rate can be measured, for example, as follows.
  • a sheet-like sample For a sheet-like sample, 4 ml of 0.05% cesium chloride aqueous solution was brought into contact with 1000 cm 2, and after 1 hour, the concentration of cesium in the aqueous solution was changed to ⁇ -EDX (energy dispersive micro fluorescent X-ray analyzer, Shimadzu Corporation). ).
  • a sheet-like sample means samples, such as a nonwoven fabric, a textile fabric, and a knitted fabric.
  • 0.5 g of 0.05% cesium chloride aqueous solution was brought into contact with 0.5 g, and 1 hour later, the concentration of cesium in the aqueous solution was measured by ⁇ -EDX (energy dispersive microscopic X-ray fluorescence analysis).
  • the textile product of this invention contains the said radioactive substance adsorbent.
  • the textile products include sanitary masks, agricultural sheets, contaminated soil sheets, flexible container bags (hereinafter sometimes referred to as “ton bags”), crop protection sheets, decontamination sheets for ponds and pools, and rainwater piping.
  • the said textile product exhibits the adsorption effect with respect to radioactive substances, such as cesium, by including the said radioactive substance adsorbent.
  • the radioactive material adsorbent in the form of nonwoven fabric described above is used for at least one of the filtration layers constituting the mask.
  • the radioactive substance adsorbent is used to prevent the radioactive substance such as cesium floating in the atmosphere or integrated with dust or dust from being taken into the human body. It is preferred to place it on the opposite outer surface.
  • the radioactive material adsorption material of the said nonwoven fabric form It is preferable that it is a spun bond nonwoven fabric.
  • the basis weight of the nonwoven fabric is preferably in the range of 15 to 30 g / m 2 .
  • what was produced as mentioned above should just be used as a radioactive substance adsorbent of the said nonwoven fabric form.
  • the textile product is an agricultural sheet and / or a contaminated soil sheet
  • These products are, for example, applied to soil such as farmland, and adsorb radioactive substances such as cesium floating in the air or integrated with dust and dust with the agricultural sheet or contaminated soil sheet, It can be used as a sheet for preventing further soil contamination.
  • the form of the radioactive substance adsorbent is not particularly limited, but is preferably a woven fabric or a non-woven fabric, and more preferably a non-woven fabric. In the case of a nonwoven fabric, it is preferably a spunbond nonwoven fabric or a needle punched nonwoven fabric.
  • the basis weight of the nonwoven fabric is preferably 15 g / m 2 or more, more preferably 15 to 300 g / m 2 . What is necessary is just to use what was produced as mentioned above as a radioactive substance adsorbent of the said nonwoven fabric form. Similarly, what was produced as mentioned above should just be used as a radioactive material adsorption material of the above-mentioned textile form. In addition, when a sheet-like network formed by irregularly intersecting a plurality of continuous filaments having a thickness of 0.1 to 10 mm is integrated on at least one surface of the radioactive material adsorbent in the form of woven fabric or nonwoven fabric, This leads to prevention of sheet scattering.
  • the textile product is a ton bag.
  • This product is a bag for adsorbing radioactive substances that have been eluted, for example, when radioactive soil such as cesium is ionized and eluted when contaminated soil containing moisture is enclosed in a ton bag.
  • the form of the radioactive substance adsorbent is not particularly limited, but is preferably a woven fabric or a non-woven fabric, and more preferably a non-woven fabric. When it is a non-woven fabric, it is preferably a spunbond non-woven fabric.
  • the basis weight of the nonwoven fabric is preferably about 50 to 150 g / m 2 , and more preferably about 100 g / m 2 .
  • a water shielding layer may be added.
  • a sheet mainly composed of an ethylene vinyl acetate copolymer a sheet mainly composed of vinyl chloride, a sheet mainly composed of polyethylene, and the like can be used.
  • the textile product is a crop protection sheet.
  • This product for example, by covering fruits such as apples, adsorbs radioactive substances such as cesium floating in the air or integrated with dust and dust with the crop protection sheet, and so on.
  • This is a sheet for preventing the influence of radioactive materials.
  • the form of the radioactive substance adsorbent is not particularly limited, but is preferably a woven fabric or a non-woven fabric, and more preferably a non-woven fabric. When it is a non-woven fabric, it is preferably a spunbond non-woven fabric.
  • the basis weight of the nonwoven fabric is preferably about 15 to 50 g / m 2 and more preferably about 30 g / m 2 .
  • the textile product is a decontamination sheet in an aqueous system such as a reservoir or a pool
  • This product is a sheet for adsorbing radioactive substances such as cesium existing in water by immersing the sheet in water when radioactive substances such as cesium exist in a reservoir.
  • the form of the radioactive substance adsorbent is not particularly limited, but is preferably a woven fabric or a non-woven fabric, and more preferably a non-woven fabric.
  • a nonwoven fabric it is preferably a spunbond nonwoven fabric, a needle punched nonwoven fabric, or a chemical bond nonwoven fabric.
  • the basis weight of the nonwoven fabric is preferably about 50 to 100 g / m 2 and more preferably about 100 g / m 2 . What is necessary is just to use what was produced as mentioned above as a radioactive substance adsorbent of the said nonwoven fabric form, When using a binder, it is preferable to use a water-resistant binder. Similarly, as the radioactive material adsorbent in the form of the woven fabric, a material prepared as described above may be used. However, when a binder is used, it is preferable to use a water-resistant binder. As the water-resistant binder, for example, “Sungrip TKS-1000” manufactured by Sanwa Polymer Industries can be used.
  • the textile product is a rainwater piping sheet.
  • This product is a sheet for reducing the amount of radioactive substances such as cesium flowing into sewage by arranging the sheet at the exit of a rain gutter in the home.
  • the form of the radioactive substance adsorbent is not particularly limited, but is preferably a woven fabric or a non-woven fabric, and more preferably a non-woven fabric.
  • a nonwoven fabric it is preferably a spunbond nonwoven fabric, a needle punched nonwoven fabric, or a chemical bond nonwoven fabric.
  • the basis weight of the nonwoven fabric is preferably 15 g / m 2 or more, and more preferably 15 to 50 g / m 2 .
  • the textile product is a cartridge filter.
  • This product can reduce the amount of radioactive substances such as cesium contained in contaminated water by passing contaminated water generated when decontaminated contaminated soil and the like are passed through the filter.
  • the structure of the fiber product is not particularly limited.
  • the radioactive material adsorbent may be wound around the outer periphery of a cartridge filter core body (hereinafter referred to as a mold) obtained by processing a heat-bonding fiber into a cylindrical shape.
  • the said radioactive substance adsorbent using the fiber raw material comprised by the heat-fusion fiber can also be shape
  • the former includes a spunbond nonwoven fabric, a spunlace nonwoven fabric, a chemical bond nonwoven fabric, and the like.
  • the latter include thermal bond nonwoven fabrics, air-through nonwoven fabrics, and spunlace nonwoven fabrics composed of heat-bonding fibers.
  • the basis weight of the nonwoven fabric those in the range of 15 to 30 g / m 2 are preferably used. What is necessary is just to use what was produced as mentioned above as a radioactive substance adsorbent of the said nonwoven fabric form.
  • a radioactive material adsorbent in the form of a powder prepared by cutting rayon fibers dyed by a known method using a dye bath containing a metal phthalocyanine dye at a concentration of 10% with a fiber length of 0.1 mm
  • the powder-form radioactive substance adsorbent is uniformly dispersed in an aqueous solution, and supported on the surface of the nonwoven fabric together with a binder by any method such as gravure printing, spraying, roll coater, or application by brush.
  • a rayon fiber dyed by a known method using a dye bath containing a metal phthalocyanine dye at a predetermined concentration, for example, 10%, is cut to a fiber length of 5 mm, mixed with other constituent fibers, and airlaid.
  • the web may be made into a non-woven fabric by the paper making method.
  • the metal phthalocyanine pigment may be uniformly dispersed in an aqueous solution together with a binder and supported on the spunbond nonwoven fabric surface by a method such as coating by gravure printing.
  • the textile product is a cleaner pack
  • this product can adsorb radioactive substances such as cesium adhering to dust by attaching it to a vacuum cleaner and sucking dust.
  • the form of the radioactive substance adsorbent is not particularly limited, but is preferably a woven fabric, paper or non-woven fabric, and more preferably a non-woven fabric.
  • a nonwoven fabric it is preferably a spunbond nonwoven fabric or a needle punched nonwoven fabric.
  • the basis weight of the nonwoven fabric is preferably 15 g / m 2 or more, more preferably 15 to 35 g / m 2 .
  • the said cleaner pack has a laminated structure of the reinforcement layer / the said radioactive substance adsorbent / microfiltration layer arrange
  • the reinforcing layer can be composed of, for example, a polypropylene spunbond nonwoven fabric
  • the microfiltration layer can be composed of, for example, an SMS nonwoven fabric (a nonwoven fabric having a three-layer structure of a spunbond nonwoven fabric, a meltblown nonwoven fabric, and a spunbond nonwoven fabric).
  • the cleaner pack may have a laminated structure of polypropylene spunbond nonwoven fabric / radioactive material adsorbent / SMS nonwoven fabric.
  • the surface of the nonwoven fabric (radioactive material adsorbent) carrying the metal phthalocyanine compound or the like is on the SMS nonwoven fabric side because the risk of dropping off the compound or the like is small.
  • the polypropylene spunbond nonwoven fabric as the reinforcing layer preferably has a basis weight of 5 to 50 g / m 2
  • the SMS nonwoven fabric preferably has a basis weight of 30 to 35 g / m 2 .
  • the textile product is protective clothing
  • This product can adsorb radioactive substances such as cesium by wearing it when working in an environment contaminated with radioactive substances such as cesium.
  • the form of the radioactive substance adsorbent is not particularly limited, but is preferably a woven fabric or a non-woven fabric, and more preferably a non-woven fabric.
  • the thickness of the laminate part is preferably 10 to 30 ⁇ m.
  • the laminated surface is preferably used on the human body side.
  • a nonwoven fabric it is preferably a spunbond nonwoven fabric or an SMS nonwoven fabric.
  • the basis weight of the nonwoven fabric is preferably 50 g / m 2 or more, and more preferably 60 to 80 g / m 2 .
  • What is necessary is just to use what was produced as mentioned above as a radioactive substance adsorbent of the said nonwoven fabric form.
  • what was produced as mentioned above should just be used as a radioactive material adsorption material of the above-mentioned textile form.
  • protective clothing with the fabric of 2 or more layers which piled up the radioactive material adsorption material of the other textile material and the said textile fabric or a nonwoven fabric form.
  • other fiber materials include polyethylene film laminated nonwoven fabric, SMS nonwoven fabric, and flash bond nonwoven fabric.
  • the textile product is a scattering prevention sheet.
  • This product is a radioactive substance such as cesium that is integrated with dust or dust that is blown away by high-pressure water, etc. by using it at the boundary with the adjacent land when decontaminating the house from outside using high-pressure water, etc. Can be adsorbed.
  • the form of the radioactive substance adsorbent is not particularly limited, but is preferably a woven fabric or a non-woven fabric, and more preferably a non-woven fabric.
  • the thickness of the laminate part is preferably 5 to 200 ⁇ m.
  • a nonwoven fabric it is preferably a spunbond nonwoven fabric or a needle punched nonwoven fabric.
  • the basis weight of the nonwoven fabric is preferably 15 to 200 g / m 2 . What is necessary is just to use what was produced as mentioned above as a radioactive substance adsorbent of the said nonwoven fabric form. Similarly, what was produced as mentioned above should just be used as a radioactive material adsorption material of the above-mentioned textile form.
  • the textile product is an air conditioner filter, a ventilation port filter, a house ventilation system filter, a cleaner main body filter, or a humidifier / dehumidifier pre-filter
  • these products include, for example, a radioactive substance such as cesium floating in the air or integrated with dust or dust, such as a filter for an air conditioner, a vent filter, a filter for a house ventilation system, a filter for a vacuum cleaner, It can be adsorbed with a humidifier / dehumidifier pre-filter and used as a filter to prevent further contamination.
  • the form of the radioactive substance adsorbent is not particularly limited, but is preferably a woven fabric or a non-woven fabric, and more preferably a non-woven fabric.
  • a nonwoven fabric it is preferably a spunbond nonwoven fabric, a chemical bond nonwoven fabric, or an air-through nonwoven fabric.
  • the basis weight of the nonwoven fabric is preferably 15 g / m 2 or more, more preferably 15 to 300 g / m 2 . What is necessary is just to use what was produced as mentioned above as a radioactive substance adsorbent of the said nonwoven fabric form. Similarly, what was produced as mentioned above should just be used as a radioactive material adsorption material of the above-mentioned textile form.
  • the textile product is an air purifier filter, an air conditioning filter used in a building, a hospital, a factory, or the like or an automobile air conditioner filter
  • These products include, for example, air-conditioning filters or automobiles that use radioactive substances such as cesium floating in the atmosphere or integrated with dust or dust in air cleaner filters, buildings, hospitals, factories, etc. It can be adsorbed with an air conditioner filter and used as a filter to prevent further contamination.
  • the form of the radioactive substance adsorbent is not particularly limited, but is preferably a woven fabric or a non-woven fabric, and more preferably a non-woven fabric.
  • the nonwoven fabric it is preferable that they are a spun bond nonwoven fabric, a chemical bond nonwoven fabric, and an air through nonwoven fabric.
  • the non-woven fabric can be used alone, or the non-woven fabric-type radioactive material adsorbent of the present invention can be used as an aggregate of a filter, and a laminate bonded to another non-woven fabric can be used for pleating.
  • the basis weight of the nonwoven fabric is preferably 15 g / m 2 or more, more preferably 15 to 120 g / m 2 . What is necessary is just to use what was produced as mentioned above as a radioactive substance adsorbent of the said nonwoven fabric form. Similarly, what was produced as mentioned above should just be used as a radioactive material adsorption material of the above-mentioned textile form.
  • the dye concentration was calculated by the mass of the dye relative to the fiber mass, and the pigment concentration was calculated by the mass of the pigment dispersion relative to the fiber mass.
  • amorphous rayon fiber 1 Viscose was spun in accordance with a conventional method except that 7% by weight of Na 2 SO 4 was added to the viscose and regenerated to obtain rayon fibers having a fineness of 6.7 dtex. This rayon fiber had many amorphous parts and the primary swelling degree was 250%. This rayon fiber was cut into 51 mm.
  • Example 1 In a 1000 ml beaker, 1000 g of water, 100 g of Na 2 SO 4 , Reactive Blue 21 (Sumifix Turquoise Blue G 150%, manufactured by Sumitomo Chemical Co., Ltd.) 10 g (concentration 10%), and Na 2 CO 3 50 g are stirred and dissolved. . 100 g of amorphous rayon fiber 1 was immersed in the resulting dye bath, and the mixture was kept warm at 70 ° C. for 60 minutes. Next, the amorphous rayon fiber 1 was taken out, washed with water and dried to obtain a radioactive material adsorbent in the form of fibers of Example 1 dyed dark blue.
  • Reactive Blue 21 Sudifix Turquoise Blue G 150%, manufactured by Sumitomo Chemical Co., Ltd. 10 g (concentration 10%)
  • Na 2 CO 3 50 g 100 g of amorphous rayon fiber 1 was immersed in the resulting dye bath, and the mixture was kept warm at 70 ° C. for 60 minutes
  • Example 2 A radioactive material adsorbent in the form of fibers of Example 2 was obtained in the same manner as in Example 1 except that the amount of reactive blue 21 added was changed to 12 g (concentration 12%).
  • Example 3 A radioactive material adsorbent in the form of fibers of Example 3 was obtained in the same manner as Example 1 except that the amount of reactive blue 21 added was changed to 15 g (concentration 15%).
  • Example 4 Copper phthalocyanine pigment dispersion (Blue FLGB Conc, manufactured by Dainichi Seika Kogyo Co., Ltd.) 10 g and acrylic binder (Matsumin Super White RBW4TMO, Matsui Color Chemical Co., Ltd.) 82 g are uniformly dispersed in 8 g of water. I let you. Using the obtained pigment dispersion, gravure printing was performed on a 100% polyester fiber spunbonded nonwoven fabric (weight per unit: 25 g / m 2 , manufactured by Asahi Kasei Co., Ltd.) to obtain a radioactive material adsorbent in the form of a nonwoven fabric of Example 4. .
  • Blue FLGB Conc manufactured by Dainichi Seika Kogyo Co., Ltd.
  • acrylic binder Matsumin Super White RBW4TMO, Matsui Color Chemical Co., Ltd.
  • Example 5 10 g of copper phthalocyanine pigment dispersion (Blue FLGB Conc, manufactured by Dainichi Seika Kogyo Co., Ltd.), 2 g of bitumen (ferrocyanide, 671 milory blue, Dainichi Seika Kogyo Co., Ltd.), and acrylic binder (Matsumin Super White) 80 g of RBW4TMO (manufactured by Matsui Dye Chemical Co., Ltd.) was uniformly dispersed in 8 g of water.
  • copper phthalocyanine pigment dispersion Blue FLGB Conc, manufactured by Dainichi Seika Kogyo Co., Ltd.
  • bitumen ferrocyanide, 671 milory blue, Dainichi Seika Kogyo Co., Ltd.
  • acrylic binder Matsumin Super White
  • Example 6 20 g of copper phthalocyanine pigment dispersion (Blue FLGB Conc, manufactured by Dainichi Seika Kogyo Co., Ltd.), 2 g of bitumen (ferrocyanide, 671 milory blue, Dainichi Seika Kogyo Co., Ltd.), and acrylic binder (Matsumin Super White) 70 g of RBW4TMO (manufactured by Matsui Dye Chemical Co., Ltd.) was uniformly dispersed in 8 g of water.
  • RBW4TMO manufactured by Matsui Dye Chemical Co., Ltd.
  • Example 7 Copper phthalocyanine pigment dispersion (Blue FLGB Conc, manufactured by Dainichi Seika Kogyo Co., Ltd.) 10 g and acrylic binder (Matsumin Super White RBW4TMO, Matsui Color Chemical Co., Ltd.) 82 g are uniformly dispersed in 8 g of water. I let you. Using the obtained pigment dispersion, gravure printing was performed on a spunlace nonwoven fabric (weight per unit: 50 g / m 2 , manufactured by Shinwa) composed of 50% polyester fiber and 50% rayon fiber (cellulosic fiber). Thus, a radioactive material adsorbent in the form of 7 was obtained.
  • Blue FLGB Conc manufactured by Dainichi Seika Kogyo Co., Ltd.
  • acrylic binder Matsumin Super White RBW4TMO, Matsui Color Chemical Co., Ltd.
  • Example 8 10 g of copper phthalocyanine pigment dispersion (Blue FLGB Conc, manufactured by Dainichi Seika Kogyo Co., Ltd.), 2 g of bitumen (ferrocyanide, 671 milory blue, Dainichi Seika Kogyo Co., Ltd.), and acrylic binder (Matsumin Super White) 80 g of RBW4TMO (manufactured by Matsui Dye Chemical Co., Ltd.) was uniformly dispersed in 8 g of water.
  • RBW4TMO manufactured by Matsui Dye Chemical Co., Ltd.
  • Example 9 9 g of copper phthalocyanine pigment dispersion (Blue FLGB Conc, manufactured by Dainichi Seika Kogyo Co., Ltd.), 2 g of bitumen (ferrocyanide, 671 milory blue, Dainichi Seika Kogyo Co., Ltd.), and acrylic binder (Matsumin Super White) RBW4TMO (manufactured by Matsui Dye Chemical Co., Ltd.) (81 g) was uniformly dispersed in 8 g of water.
  • Blue FLGB Conc manufactured by Dainichi Seika Kogyo Co., Ltd.
  • bitumen ferrocyanide, 671 milory blue, Dainichi Seika Kogyo Co., Ltd.
  • acrylic binder Matsumin Super White
  • Example 10 8 g of copper phthalocyanine pigment dispersion (Blue FLGB Conc, manufactured by Dainichi Seika Kogyo Co., Ltd.), 2 g of bitumen (Iron Ferrocyanide, 671 Milory Blue, manufactured by Dainichi Seika Kogyo Co., Ltd.), and acrylic binder (Matsumin Super White) 82 g of RBW4TMO (manufactured by Matsui Dye Chemical Co., Ltd.) was uniformly dispersed in 8 g of water.
  • Blue FLGB Conc manufactured by Dainichi Seika Kogyo Co., Ltd.
  • bitumen Iron Ferrocyanide, 671 Milory Blue, manufactured by Dainichi Seika Kogyo Co., Ltd.
  • acrylic binder Matsumin Super White
  • Comparative Example 2 A non-dyed 100% spunbond nonwoven fabric (weight per unit: 25 g / m 2 , manufactured by Asahi Kasei Co., Ltd.) was used as Comparative Example 2.
  • Comparative Example 3 A spunlace nonwoven fabric (weight per unit: 50 g / m 2 , manufactured by Shinwa) composed of 50% undyed polyester fiber and 50% rayon fiber (cellulosic fiber) was used as Comparative Example 3.
  • Reference Example 1 Uniformly disperse 2g of bitumen (ferrocyanide, 671 milory blue, manufactured by Dainichi Seika Kogyo Co., Ltd.) and 90 g of acrylic binder (Matsumin Super White RBW4TMO, manufactured by Matsui Pigment Chemical Co., Ltd.) in 8 g of water. I let you. Using the obtained dispersion, gravure printing was performed on a spunbonded nonwoven fabric (weight per unit: 25 g / m 2 , manufactured by Asahi Kasei Co., Ltd.) with 100% polyester fiber, and the obtained nonwoven fabric was used as Reference Example 1.
  • Example 11 A crop protection sheet, which is a textile product of the present invention having a width of 100 cm and a length of 50 m, as in Example 5, except that the basis weight of the nonwoven fabric used as the fiber material is changed to 20 g / m 2 (manufactured by Asahi Kasei Corporation). Got.
  • Example 12 Except that the basis weight of the nonwoven fabric used as the fiber material was changed to 50 g / m 2 (manufactured by Asahi Kasei Co., Ltd.), in the same manner as in Example 5, for the rainwater piping which is the fiber product of the present invention having a width of 50 cm and a length of 50 cm A sheet was obtained.
  • Example 13 A nonwoven fabric (nonwoven fabric-shaped radioactive material adsorbent) obtained in the same manner as in Example 5 except that the basis weight of the nonwoven fabric used as the fiber material was changed to 100 g / m 2 (manufactured by Asahi Kasei Corporation).
  • the ton bag (flexible container bag) which is a textile product of the present invention was obtained by sewing into a rectangular parallelepiped shape having a height of 90 cm and a height of 90 cm.
  • the cesium adsorption rate of the radioactive material adsorbent in the fiber form or nonwoven fabric form of the example and the fiber or nonwoven fabric of the comparative example was measured as described above.
  • the concentration of the dye or pigment is also shown in Table 1 below.
  • Example 14 A card web was prepared using a core-sheath composite fiber (fineness: 2.2 dtex, fiber length: 62 mm, manufactured by Daiwabo Polytech Co., Ltd.) having a core component of polypropylene and a sheath component of polyethylene, and a hot air dryer (130 ° C., 30 Second), the film was wound around an iron core having a diameter of 30 mm to produce a mold having an outer diameter of 45 mm and a length of 1300 mm.
  • a core-sheath composite fiber fineness: 2.2 dtex, fiber length: 62 mm, manufactured by Daiwabo Polytech Co., Ltd.
  • a hot air dryer 130 ° C., 30 Second
  • the cesium adsorption rate of the cartridge filter obtained in Example 14 was measured as follows, and the results are shown in Table 1 below.
  • Example 4 and Example 5 and Reference Example 1 the combination of the metal phthalocyanine compound and the ferrocyanide is more suitable for cesium adsorption.
  • the rate was high.
  • the cesium adsorption rate of the crop protection sheet of Example 11 which is the textile product of the present invention, the sheet for rainwater piping of Example 12 and the flexible container bag of Example 13 is 90% or more, and has excellent cesium removal performance. I found out.
  • the fiber product (cartridge filter) of Example 14 formed using the radioactive material adsorbent (nonwoven fabric form) of Example 6 also has a cesium adsorption rate of 90% or more and excellent cesium removal performance. I understood.
  • Example 15 Polypropylene spunbonded nonwoven fabric (weight per unit: 30 g / m 2 , manufactured by Asahi Kasei Co., Ltd.), nonwoven fabric obtained in Example 9 (weight per unit: 25 g / m 2 ), SMS nonwoven fabric (weight per unit: 30 g / m 2 , manufactured by Mitsui Chemicals, Inc.) ) Were laminated in this order, and the laminated nonwoven fabric obtained was cut into a predetermined size.
  • the cesium adsorptivity of the cleaner pack of Example 15 was evaluated as follows. As a comparative product, the cesium adsorptivity of a commercially available paper pack was also evaluated in the same manner. The results are shown in Table 2 below.
  • the cleaner pack of Example 15 adsorbed cesium, which reduced the cesium dose of the exhaust air.
  • Example 16 From the mouth side, 50% by mass of polypropylene and 50% by mass of air-through nonwoven fabric (weight per unit: 15 g / m 2 , manufactured by Daiwabo Polytech Co., Ltd.), 50% by mass of rayon and 50% by mass of polyester (weight per unit: 50 g / m 2) , Manufactured by Daiwabo Polytech Co., Ltd.), polypropylene melt blown nonwoven fabric (weight per unit: 20 g / m 2 , manufactured by Tapirs Co., Ltd.), and the nonwoven fabric of Example 10 (nonwoven fabric form radioactive material adsorbent) are laminated in this order to form a filtration layer.
  • the mask which is the textile product of this invention was obtained.
  • the nonwoven fabric (radioactive material adsorption material of a nonwoven fabric form) of Example 10 it arrange
  • the mask of Example 16 has an excellent adsorbing effect on radioactive substances such as cesium by including the nonwoven fabric of Example 10 (radioactive material adsorbent in the form of a non-woven fabric) with a cesium adsorption rate of 90.0% or more in the filtration layer. It seems to demonstrate.
  • Example 17 10 g of copper phthalocyanine pigment dispersion (Blue FLGB Conc, manufactured by Dainichi Seika Kogyo Co., Ltd.), 2 g of bitumen (ferrocyanide, 671 milory blue, Dainichi Seika Kogyo Co., Ltd.), and acrylic binder (Matsumin Super White) 80 g of RBW4TMO (manufactured by Matsui Dye Chemical Co., Ltd.) was uniformly dispersed in 8 g of water.
  • copper phthalocyanine pigment dispersion Blue FLGB Conc, manufactured by Dainichi Seika Kogyo Co., Ltd.
  • bitumen ferrocyanide, 671 milory blue, Dainichi Seika Kogyo Co., Ltd.
  • acrylic binder Matsumin Super White
  • Example 18 The nonwoven fabric (radioactive material adsorbent in the form of nonwoven fabric) of Example 17 was formed into a single-piece (connecting type, with hood) protective clothing (size: XL, height: 180 to 188 cm, breast height: 108 to 116 cm). Combined, cut and sewed before and after the hood, the upper body with sleeves (up to the lower rib) and the lower body. The sewn portion was reinforced with water leakage prevention tape, and rubber was attached to the face portion, cuff portion, and ankle portion to obtain an integrated protective clothing that is a textile product of the present invention.
  • the obtained protective clothing is made of a nonwoven fabric (nonwoven fabric-type radioactive material adsorbent) having a cesium adsorption rate of 90.0% or more, it exhibits an excellent adsorption effect for radioactive materials such as cesium.
  • Example 19 The nonwoven fabric of Example 17 (non-woven fabric-shaped radioactive material adsorbent) is a simple type (no lower body type, with hood) of protective clothing (size: XL, height: 180-188 cm, adaptive chest circumference: 108-116 cm) According to the mold, it was cut before and after the hood and upper body (up to the knee) and sewn. The sewn portion was reinforced with a water leakage prevention tape, and rubber was attached to the face portion to obtain a simple protective clothing that is a textile product of the present invention.
  • the obtained protective clothing is made of a nonwoven fabric (nonwoven fabric-type radioactive material adsorbent) having a cesium adsorption rate of 90.0% or more, it exhibits an excellent adsorption effect for radioactive materials such as cesium.
  • Example 20 A non-woven fabric (non-woven fabric-shaped radioactive material adsorbent) obtained in the same manner as in Example 5 is set in an extrusion laminator, integrated with a 50 ⁇ m-thick polyethylene film, and is a fiber product of the present invention having a width of 95 cm and a length of 500 m. A scattering prevention sheet was obtained.
  • Example 21 Instead of using a 100% polyester fiber spunbond nonwoven fabric (weight per unit: 25 g / m 2 , manufactured by Asahi Kasei Co., Ltd.), except that a 100% polyester fiber spunbond nonwoven fabric (weight per unit: 100 g / m 2 , manufactured by Asahi Kasei Co., Ltd.) was used.
  • a radioactive material adsorbent in the form of a nonwoven fabric in the same manner as in Example 5.
  • the obtained non-woven fabric (non-woven fabric-shaped radioactive material adsorbent) was laminated in four layers and sewed into a bag shape having a width of 45 cm and a length of 50 cm to obtain a flexible container bag which is a textile product of the present invention.
  • stacked on four layers becomes the filter 1, the filter 2, the filter 3, and the filter 4 in order from the outer side.
  • the flexible container bag 10 is loaded with sand (1 kg) and installed in running water containing radioactive substances as shown in FIG. 1, and each layer of non-woven fabric (non-woven fabric radioactive material adsorbent), sand, and flexible container Cesium adsorptivity in running water before and after passing through the bag was measured and evaluated as follows.
  • arrows indicate the flow direction of running water.
  • radioactive material adsorbent of the present invention and the fiber product containing the same adsorb radioactive materials such as cesium, for example, sanitary masks, agricultural sheets, contaminated soil sheets, flexible container bags, crop protection sheets, reservoirs, etc.

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Abstract

La présente invention concerne un adsorbant de substance radioactive, l'adsorbant étant constitué d'une matière fibreuse portant un composé de métallophtalocyanine. De préférence, le composé de métallophtalocyanine est un colorant à base de phtalocyanine de cuivre ou un pigment à base de phtalocyanine de cuivre. La matière fibreuse est un tissu non tissé constitué, de préférence, de fibres cellulosiques et/ou de fibres de polyester, et de manière davantage préférée de fibres de polyester. Les fibres cellulosiques sont de préférence des fibres de rayonne présentant un degré primaire de gonflement allant de 150 % à 500 %. L'article textile comprend l'adsorbant de substance radioactive. L'invention concerne également un procédé de fabrication d'un adsorbant de substance radioactive, le procédé comprenant l'imprégnation ou le revêtement d'une matière fibreuse avec une solution contenant un composé de métallophtalocyanine ou une dispersion contenant un composé de métallophtalocyanine, de sorte que la matière fibreuse puisse porter le composé de métallophtalocyanine.
PCT/JP2012/078498 2011-11-02 2012-11-02 Adsorbant de substance radioactive, procédé pour le fabriquer, et article textile contenant un adsorbant de substance radioactive WO2013065829A1 (fr)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013134187A (ja) * 2011-12-27 2013-07-08 Japan Vilene Co Ltd セシウム吸収材
JP5526309B1 (ja) * 2013-05-16 2014-06-18 日豊製袋工業株式会社 放射線遮蔽フレキシブルコンテナバッグおよび放射線遮蔽袋
JP2014182006A (ja) * 2013-03-19 2014-09-29 Toyobo Co Ltd 再汚染抑制工法
JP2015036673A (ja) * 2013-08-16 2015-02-23 ユニチカトレーディング株式会社 セシウムイオン吸着用筒状フィルター及びその製造方法
JP2016014568A (ja) * 2014-07-01 2016-01-28 丸善薬品産業株式会社 放射性セシウム吸着材およびそれを用いた放射性汚染水の浄化方法
JP2016133324A (ja) * 2015-01-16 2016-07-25 国立研究開発法人産業技術総合研究所 放射性物質吸着材、放射性物質吸着カートリッジ及び放射性物質のモニタリング装置
EP3125253A1 (fr) * 2015-07-30 2017-02-01 Great South Group Limited Procédé et composition pour l'absorption d'un rayonnement ionisant
WO2017082361A1 (fr) * 2015-11-13 2017-05-18 株式会社クラレ Élément de récupération de césium et procédé de récupération de césium
WO2018181605A1 (fr) * 2017-03-29 2018-10-04 株式会社キュアテックス Matériau agricole et horticole comprenant un fil de papier japonais tricoté ou tissé

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JPS5858499A (ja) * 1981-10-02 1983-04-07 株式会社日立製作所 放射性廃液の処理方法
JPS614530A (ja) * 1984-06-15 1986-01-10 Nippon Bunseki Center 放射性核種および重金属捕集材
JPS63305297A (ja) * 1987-06-05 1988-12-13 Ebara Corp 放射性廃液処理方法
JPS6433272A (en) * 1987-07-27 1989-02-03 Asahi Chemical Ind Cellulosic fiber having ion exchange capacity
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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013134187A (ja) * 2011-12-27 2013-07-08 Japan Vilene Co Ltd セシウム吸収材
JP2014182006A (ja) * 2013-03-19 2014-09-29 Toyobo Co Ltd 再汚染抑制工法
JP5526309B1 (ja) * 2013-05-16 2014-06-18 日豊製袋工業株式会社 放射線遮蔽フレキシブルコンテナバッグおよび放射線遮蔽袋
JP2015036673A (ja) * 2013-08-16 2015-02-23 ユニチカトレーディング株式会社 セシウムイオン吸着用筒状フィルター及びその製造方法
JP2016014568A (ja) * 2014-07-01 2016-01-28 丸善薬品産業株式会社 放射性セシウム吸着材およびそれを用いた放射性汚染水の浄化方法
JP2016133324A (ja) * 2015-01-16 2016-07-25 国立研究開発法人産業技術総合研究所 放射性物質吸着材、放射性物質吸着カートリッジ及び放射性物質のモニタリング装置
EP3125253A1 (fr) * 2015-07-30 2017-02-01 Great South Group Limited Procédé et composition pour l'absorption d'un rayonnement ionisant
WO2017082361A1 (fr) * 2015-11-13 2017-05-18 株式会社クラレ Élément de récupération de césium et procédé de récupération de césium
JPWO2017082361A1 (ja) * 2015-11-13 2018-09-13 株式会社クラレ セシウム回収材及びセシウム回収方法
WO2018181605A1 (fr) * 2017-03-29 2018-10-04 株式会社キュアテックス Matériau agricole et horticole comprenant un fil de papier japonais tricoté ou tissé
CN110494038A (zh) * 2017-03-29 2019-11-22 株式会社贵亚特丝 包含日本纸纱线的针织品或纺织品的农园艺用材料
CN110494038B (zh) * 2017-03-29 2021-03-12 株式会社贵亚特丝 包含日本纸纱线的针织品或纺织品的农园艺用材料

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