WO2005103365A1 - 消臭性スエード調皮革様シート - Google Patents
消臭性スエード調皮革様シート Download PDFInfo
- Publication number
- WO2005103365A1 WO2005103365A1 PCT/JP2005/007879 JP2005007879W WO2005103365A1 WO 2005103365 A1 WO2005103365 A1 WO 2005103365A1 JP 2005007879 W JP2005007879 W JP 2005007879W WO 2005103365 A1 WO2005103365 A1 WO 2005103365A1
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- WO
- WIPO (PCT)
- Prior art keywords
- deodorant
- leather
- fiber
- sheet
- suede
- Prior art date
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
-
- 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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/005—Compositions containing perfumes; Compositions containing deodorants
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- 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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/02—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons
- D06M13/03—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with hydrocarbons with unsaturated hydrocarbons, e.g. alkenes, or alkynes
- D06M13/07—Aromatic hydrocarbons
-
- 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
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
-
- 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
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/08—Processes in which the treating agent is applied in powder or granular form
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
- Y10T428/24438—Artificial wood or leather grain surface
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2303—Coating or impregnation provides a fragrance or releases an odor intended to be perceptible to humans
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2861—Coated or impregnated synthetic organic fiber fabric
- Y10T442/2893—Coated or impregnated polyamide fiber fabric
Definitions
- the present invention relates to a deodorant suede-finished leather-like sheet that is used for shoe linings, insoles, gloves, clothing, furniture, and the like, and is effective for removing stench attached from a living environment.
- medium-fine fibers (3 to 10 ⁇ m in diameter containing phosphate particles with an average particle diameter of 1 m or less (substantially about 0.5 ⁇ m) holding metal ions such as silver and zinc)
- A) is composed of an entangled non-woven fabric consisting of converging fibers and an elastic polymer in which a specific diameter of A) and ultrafine fibers with a fiber diameter of 1 m or less are mixed at a specific ratio, and an antibacterial with excellent appearance and durability Suede-like artificial leather has been proposed (see Patent Document 4).
- nap fibers having a large deodorant particle diameter tend to gather hair (the nap fibers gather and become thick, like a plant).
- the surface appearance is likely to be whitened if the appearance is poor or if a sufficient amount of the antibacterial agent is applied immediately.
- an antibacterial deodorant fiber has been proposed in which fine particles of diacid titanium bearing silver are applied to the fiber surface without interposing a resin binder (see Patent Document 5).
- this fiber is described as having an excellent antibacterial and deodorant function, having a small reduction in feeling and having washing resistance, if the amount of the deodorant attached is small, it will have a suede-like effect that it will have an extremely fine fiber strength. There is a problem that it is difficult to obtain a sufficient deodorizing effect when a leather-like sheet is used.
- Patent Document 1 JP-A-02-63403
- Patent Document 2 Japanese Patent Application Laid-Open No. 01-280073
- Patent Document 3 Japanese Patent Application Laid-Open No. 08-074171
- Patent Document 4 JP-A-6-346376
- Patent Document 5 JP-A-10-280270
- the present invention has a deodorizing effect that is effective for removing stinks attached to human life, such as human sweat, body odor, cigarettes, and pets, and has natural leather-like softness and an elegant raised hair appearance.
- An object of the present invention is to provide a deodorant suede-like leather-like sheet.
- the inventors of the present invention have conducted intensive studies to solve the above problems, and as a result, the surface area of the ultrafine fibers per unit volume of the fiber entangled body containing the ultrafine fibers is in a specific range, and the particulate deodorant is It has been found that the above problem can be solved by causing at least a part of the fine particles to exist on the surface of the ultrafine fibers, and the present invention has been completed.
- the present invention provides the following deodorant suede-finished leather-like sheet.
- Deodorant suede leather-like sheet characterized in that at least a part of the deodorant having an average primary particle diameter of 0: Lm or less is present on the surface of the ultrafine fibers.
- a leather-like sheet having a raised surface on at least one surface of a leather-like sheet base made of a fiber entangled body of microfibers or a leather-like sheet base made of a fiber entangled body of microfibers and a polymer elastic body The deodorant suede-like leather-like sheet according to the above (1) or (2), which is:
- ADVANTAGE OF THE INVENTION According to the present invention, it has excellent deodorizing performance effective for removing stench attached to living environment such as human sweat, body odor, cigarettes, and pets, and has soft touch and appearance similar to natural leather.
- a deodorant suede-like leather-like sheet can be provided. Since the suede-finished leather-like sheet of the present invention does not deteriorate the appearance (whitening) due to the collection of nap fibers or the deodorant, it can be suitably used not only for clothing, but also for interiors, shoes, bags, various gloves, and the like.
- the deodorant suede-finished leather-like sheet of the present invention is a fiber entangled body containing ultrafine fibers, and the surface area of the ultrafine fibers is 3 ⁇ 10 3 to 9 ⁇ 10 4 cm 2 per unit volume of the fiber entangled body. / cm 3 is characterized in that at least a part of the particulate deodorant having an average primary particle diameter of 0.1 ⁇ m or less is present on the surface of the ultrafine fiber.
- the fiber entangled body containing microfibers comprises: (1) a step of producing microfiber-generating fibers for producing microfibers; (2) a step of forming the microfiber-generating fibers into a web laminate; (3) ) A step of producing a fiber-entangled body from the web laminate, (4) a step of impregnating the fiber-entangled body with a polymer elastic body to form a solidified body, and (5) a step of transforming the solidified body into ultrafine fibers. (6) a step of forming fiber nap on at least one side, and (7) a step of coloring and finishing the obtained fiber nap substrate as necessary. Contains extra fine fibers The method for producing the fiber entangled body will be described below in order.
- the ultrafine fiber-generating fiber for producing the ultrafine fiber of the present invention can be obtained by subjecting two or more kinds of incompatible thermoplastic polymers to complex spinning or mixed spinning by a known method.
- the composite spinning is a method typified by a method in which a spinning nozzle is spun using a single-dip pipe type composite spinning nozzle, and two or more types of polymers which are not compatible with each other are mixed with a spinneret. This is a method in which the island component is extruded into the sea component and the composite spinning is performed, with the mouthpiece regulated.
- Mixed spinning refers to a method in which two or more incompatible polymers are chip-blended and then melted and spun in the same molten system.
- a typical example of the ultrafine fiber generating fiber is a conjugate fiber having a loose sea-island cross section (hereinafter referred to as “sea-island fiber”).
- sea-island type fiber for example, an extractable type in which the sea component is removed from the fiber by dissolving or decomposing the sea component with a solvent or a decomposing agent such as sodium hydroxide, thereby leaving the island component and fibrillating.
- Fibers and splittable composite fibers that fibrillate fibers made of each polymer mechanically or by a treatment agent are exemplified.
- an extractable fiber for extracting and removing sea components is preferable.
- the island component polymer of the sea-island type fiber is a polymer that can be melt-spun and sufficiently exhibit fiber properties such as strength and has a higher melt viscosity than the sea component polymer under spinning conditions. Polymers having high surface tension are preferred.
- the strong polymer examples include polyamide-based polymers and copolymers such as 6-nylon and 66-nylon, thermoplastic polyesters such as polyethylene terephthalate, polytrimethylene terephthalate, and polybutylene terephthalate, and copolymers thereof. It can.
- the island component polymer preferably contains various additives such as a colorant such as carbon, titanium oxide, and a pigment, and a function-imparting agent such as a flame retardant and a lightfast agent, if necessary.
- the solubility and dissolution properties of the island component polymer are different from those of the island component polymer, and the solubility in a solvent or a decomposer used for dissolution and removal is large.
- Polymers are preferred, with small compatibility.
- As a powerful sea component polymer examples thereof include polyethylene, modified polyethylene, polypropylene, polystyrene, modified polyester, polyvinyl alcohol, and modified polyvinyl alcohol.
- the average fineness of the ultrafine fibers composed of the island component polymer is at most ldtex, preferably at most 0.2 dtex, more preferably at least 0.0005 to 0.07 dtex. More preferably, it is 0.001-0. Oldtex.
- the average fineness is equal to or less than ldtex, the flexibility of the fiber entangled body using the fiber is impaired, and it is possible to prevent the fiber from having a rough feel. In the case of 0.07 dtex or less, it becomes a suede-like one covered with fine nap fibers.
- it is 0.0005 or more it is possible to sufficiently secure the coloring property.
- the ultrafine fiber-generating fibers can be formed into filaments or staples by a conventionally known method.
- processing such as stretching, crimping, heat setting, and cutting is performed after the composite spinning or the mixed spinning.
- An oil such as silicone may be applied to the stable.
- Oil agents include polyorganosiloxane and various modified silicone oil agents that have the effect of reducing friction between fibers, mineral oil oil agents that have an effect of reducing the friction between metals by combining fibers, and other charged materials.
- Known oil agents such as an inhibitor can be used. These oil agents are applied by blending in consideration of the characteristics of the fiber, and the process may be any of before and after crimping of the fiber and when mixing with other fibers.
- the ultrafine fiber generating fiber stable easily causes troubles such as wrapping and fiber cracking in the card and needle punching process
- an oil agent for reducing the friction coefficient is mainly applied to the ultrafine fiber generating fiber. It is preferable to add
- the ultrafine fiber generating fiber stable is formed into a random web or a cross-wrap web through a card and a webber by a known method, and the formed webs are laminated to obtain a web laminate.
- the web laminate obtained above is sent to a needle punching step and processed into a nonwoven fabric which is a fiber entangled body.
- a known needle is used as a felt needle of a one-dollar punch.
- a 1-purb needle that does not easily break the fiber is preferably used.
- multi-purse needles such as 3-, 6- and 9-purbs can be used. These needles can be used in combination depending on the purpose.
- the number of punches in the needle punching step varies depending on the shape of the needle used and the thickness of the web, but is usually set in the range of 200 to 2500 Nch Zcm 2 , preferably 500 to 2000 punches / cm 2. .
- the needle punching condition is too strong, the ultrafine fiber generating type fiber is cut or broken when the needle punching condition of the web laminate is too strong, the entanglement is not improved, and the -dollar punching condition is too weak
- the shortage of fibers arranged in the thickness direction causes shortage of the entanglement, and it is difficult to obtain a beautiful, high fuzz density and high-grade suede surface.
- the needle-punched web laminate has a surface smoothed and its thickness regulated, and the specific gravity of the ultrafine fibers in the fiber entangled body is adjusted over the finally obtained suede leather-like sheet. Since it can be controlled to a desired level, it is pressed in the thickness direction.
- the specific gravity of the nonwoven fabric after pressing is preferably 0.18 or more, more preferably 0.19 to 0.45.
- As the pressing method a conventionally known method such as a method of passing between a plurality of heating rolls and a method of passing a preheated nonwoven fabric between cooling rolls can be used. Further smoothing of the fiber entangled body (non-woven fabric) can be achieved by melting and pressing the low melt viscosity component.
- an adhesive capable of removing polyvinyl alcohol, starch, resin emulsion, etc. is applied to the fiber entangled body for the purpose of suppressing morphological change due to tension or pressing. You can give it.
- the pressed fiber entangled body (nonwoven fabric) is impregnated with a solution or dispersion liquid of a polymer elastic body as required to form a sponge-like solidified body.
- a solution or dispersion liquid of a polymer elastic body as required to form a sponge-like solidified body.
- polymer elastic body examples include resins conventionally used in the production of leather-like sheets, for example, polyurethane resins, polychlorinated vinyl resins, polyacrylic resins, and polyamino acids.
- a resin, a silicone resin, a copolymer thereof, and a mixture of two or more thereof are preferably used.
- polyurethane resins are preferred from the viewpoint of obtaining a natural leather-like texture and feel.
- a coloring agent such as carbon, titanium oxide, a pigment, a dye, a flame retardant, an antioxidant, a light stabilizer, a surfactant
- various additives such as a function imparting agent such as a foaming agent are previously contained in the elastic polymer.
- the polymer elastic body is coagulated into a sponge by impregnating the fiber entangled body in the form of an aqueous emulsion or in the form of a solution dissolved in an organic solvent, followed by appropriate heat coagulation, dry coagulation, wet coagulation, etc. Let it.
- the amount of the polymer elastic body applied to the fiber entangled body constituting the leather-like sheet of the present invention is from 0 to 150% by mass, preferably from 0 to 150% by mass, from the viewpoint of balance between texture, mechanical properties and the like and deodorizing function. It is 5 to 150% by mass, more preferably 10 to 125% by mass.
- the mass ratio exceeds 150% by mass, the mechanical properties of the leather-like sheet and the adhesiveness to the surface coating layer tend to improve, but the texture of the leather-like sheet becomes rubbery and It tends to be unfavorable.
- the ratio of the ultrafine fibers to which the deodorant is attached is reduced, the surface area of the ultrafine fibers per unit volume of the fiber entangled body is reduced, and the surface area of the polymer elastic body is relatively increased. Adhesion of the deodorant to the body becomes remarkable, and the attached deodorant becomes extremely easily detached. [0017] (5. Transformation into ultra-fine fibers)
- the pressed fiber entangled body or the sponge-like solidified body obtained by impregnating the fiber entangled body with a polymer elastic body has a surface component per unit volume of the fiber entangled body in which the contained sea component polymer is removed. Is converted into ultrafine fibers or bundled fibers of ultrafine fibers (hereinafter, collectively referred to as “microfine fibers”) having a size of 3 ⁇ 10 3 to 9 ⁇ 10 4 cm 2 / cm 3 .
- a non-solvent is used for the island component polymer and the polymer elastic material, and a solvent or a liquid serving as a decomposer is used for the sea component polymer to convert the fiber entangled body or the sponge-like solidified body.
- a leather-like sheet substrate [1] comprising a fiber entangled body of ultrafine fibers and bundled fibers thereof, or a fiber entangled body of ultrafine fibers and bundled fibers thereof and a polymer elastic body
- a leather-like sheet substrate [2] comprising: If the surface area of the ultrafine fibers per unit volume of the fiber entangled body is in the range of 3 ⁇ 10 3 to 9 ⁇ 10 4 cm 2 / cm 3 , the effects of the present invention can be sufficiently achieved.
- the surface area of the ultrafine fibers per unit volume of the fiber entangled body is more preferably in the range of 4 ⁇ 10 3 to 7 ⁇ 10 4 cm 2 Zcm 3 .
- the thickness of the leather-like sheet bases [1] and [2] can be arbitrarily selected depending on the application and is not particularly limited, but is usually about 0.3 to 3 mm, preferably 0.5 to 2.5 mm. It is about.
- a suede-like leather-like sheet In order to obtain a suede-like leather-like sheet, at least one surface of the above-mentioned leather-like sheet substrate [1] or [2] is subjected to a raising treatment to form a fiber raised surface mainly composed of ultrafine fibers.
- a method for forming the fiber raised surface a method of performing a puffing process with sandpaper, a brushing process for a needle cloth, etc. after each of these sheet substrates is adjusted to a desired thickness or before the thickness adjustment is performed. Is mentioned. If the thickness has not been adjusted, the thickness is adjusted to a desired thickness thereafter to obtain a suede-like leather-like sheet.
- dyes for dyeing polyamide ultrafine fibers and polyurethane such as acid dyes and gold-containing complex dyes
- a 2: 1 type metal complex dye is particularly preferred.
- a dye which does not decrease the washing fastness such as a sulfur dye or a vat dye.
- the dye concentration is preferably 3% or less. It is also preferable to brush-treat the dyed sheet in a wet state in order to improve the fastness.
- the dyed suede-finished leather-like sheet is subjected to finishing treatment such as light resistance treatment, kneading, softening treatment, and brushing as necessary, to obtain a suede-finished leather-like sheet product in the form of a fiber napped sheet.
- any deodorant can be used as long as it has an average primary particle diameter of 0.1 m or less.
- Activated carbon charcoal such as charcoal obtained by firing plants such as ⁇ , red pine, oak, bamboo, etc.
- physical adsorption type deodorant with physical adsorption function such as silica, photocatalytic type deodorant etc.
- a photocatalyst type deodorant a metal Z lid with a photocatalytic function that functions as a photooxidation catalyst by generating active oxygen by irradiating light such as ultraviolet rays and oxidizing and decomposing many harmful substances and odorous substances.
- Fine particle deodorants such as cyanine catalysts may be mentioned.
- a fundamental deodorizing effect using decomposition by a catalytic action can be obtained instead of a mere adsorbing effect such as a physical adsorption type deodorant.
- V more preferred because the effect of deodorization) lasts for a long time. It is also preferable to use both a photocatalyst type and a physical adsorption type deodorant in combination.
- any of organic or inorganic optical semiconductors can be used. However, stability, easy availability, handleability, etc. Inorganic optical semiconductors are preferred. Are preferred.
- sulfide semiconductors, metal chalcogenite Although a typical example is a semiconductor, GaAs, Si, Se and the like are also included in the deodorant of the present invention. These can be used alone or in combination of two or more.
- sulfide semiconductors such as CdS and ZnS, TiO, Zn
- oxide semiconductors such as WO and SnO are preferred, especially oxide semiconductors such as TiO and ZnO
- the body is preferred. Further, it is preferable that a metal component having a deodorizing function, such as gold, silver, copper, or zinc, be carried on the oxide semiconductor. Further, the crystal structure of the optical semiconductor constituting the photocatalyst type deodorant is not particularly limited. For example, TiO is an anatase type,
- brookite type Any of brookite type, rutile type, amorphous type and the like may be used, but anatase type TiO is preferable.
- the deodorant must be present at least partially on the surface of the ultrafine fibers of the suede-like leather-like sheet, and at least a part of the deodorant covers the surface of the ultrafine fibers. It is preferable to be in!
- the term ⁇ presence '' is a concept encompassing adhesion, adsorption, etc.
- the term ⁇ covering '' means that the deodorant is present on the entire surface of the microfiber.
- the surface of the ultrafine fibers constituting the fiber entangled body in the present invention has an extremely large surface area when viewed per unit volume, particularly as compared with fibers of normal fineness of 2 dtex or more. Due to the presence of the deodorant on this large surface area, the frequency of contact between the deodorant and the malodorous substance is much higher than when the deodorant is usually present on the fiber surface, and the The odor effect can be increased extremely efficiently.
- the ultrafine fibers themselves have extremely high physical adsorption capacity as compared with fibers of normal fineness. For this reason, when fibers of normal fineness are used, the time lag until the deodorant of the photocatalyst type functions effectively and the deodorant effect is developed, the deodorant effect corresponding to the amount of photocatalyst used is not immediately exhibited. Although there is a problem, the use of microfibers can overcome the powerful problems.
- the surface area of the fibers constituting the leather-like sheet is less than 3 ⁇ 10 3 cm cm 3 per unit volume of the fiber entangled body, no matter how fine the deodorant power S is.
- the deodorizing effect is significantly reduced.
- the surface area per unit volume is small, and the existing fine particulate deodorant rapidly forms secondary particles due to aggregation and association, The surface area of the deodorant itself is significantly reduced.
- the deodorant effect per unit amount of the deodorant is remarkably reduced, and a state of covering the fiber surface cannot be achieved.
- the amount of fine particulate deodorant required to exert a practically effective deodorizing function is about the same as that of the ultrafine fibers, it must be present per unit surface area of the fibers.
- the deodorant significantly impairs the appearance of the suede-like surface, which makes the surface white and easy to collect hair.
- the deodorant is selectively present only on the surface of the leather-like sheet by coating, it is necessary to fix the deodorant with a binder, so that the appearance of the surface changes and a soft touch can not be obtained. .
- the particle diameter of the fine particle deodorant is preferably such that it can exist so as to cover the surface of the ultrafine fiber almost uniformly by utilizing physical adsorption.
- the diameter is preferably equal to or less than the diameter.
- the upper limit of the particle size of the particulate deodorant slightly varies depending on the fiber diameter of the microfiber, but the average primary particle size that can exist on the surface of the microfiber is 0.1 m or less. Preferably, it is 0.001 to 0.05 m, more preferably 0.001 to 0.02 / zm. For this reason, it is preferable that the deodorant contain 30% by mass or more of fine particles having a size of 0.05 ⁇ m or less so that the average primary particle size is 0.1 ⁇ m or less.
- the average primary particle diameter and the surface area of the ultrafine fibers in the above range are 3 ⁇ 10 3 to 9 ⁇ 10 4 cm 2 per unit volume of the fiber entangled body. The combination with a fiber entangled body of / cm 3 dramatically improves the deodorant function (effect and continuity) and provides an elegant suede appearance without hair collection and whitening on the suede surface. Becomes possible.
- a treatment liquid in which the fine-particle deodorant is dispersed is used. It is preferable to take a method of removing the liquid of the dispersion medium after applying to the leather-like sheet base [1] or [2]. Since the particulate deodorant must be uniformly dispersed in the processing liquid to be used, an aqueous sol-type processing liquid in which deodorant is dispersed as colloidal particles using water as a dispersion medium is preferably used.
- the treatment liquid itself is an aqueous liquid rather than a solvent, it is necessary to dissolve the leather-like sheet substrate [1] or [2] without the need for explosion-proof equipment, assuming industrial mass production. It is preferable because a treatment such as soft impregnation can be performed.
- the deodorant is present in an amount of 0.001 to 0.000 per unit volume of the fiber entangled body containing the ultrafine fibers.
- the fine particles of the deodorant not only exist on the surface of the ultrafine fibers but also between the ultrafine fibers or between the ultrafine fibers and the resin. Aggregation and association result in the presence of secondary particles, and the effect as a deodorant corresponding to the amount present cannot be obtained. Also, the aggregated and associated secondary particles reduce the degree of freedom of the ultrafine fibers and become hard-handed, or precipitate in the form of secondary particles on the surface of the deodorant leather-like sheet.
- a photocatalyst type deodorant When a photocatalyst type deodorant is used, by using it in combination with a physical adsorption type deodorant, a high deodorant property can be obtained even under conditions where the photocatalyst does not function under light shielding. Can be demonstrated.
- the ratio between the photocatalyst type deodorant and the physical adsorption type deodorant is not particularly limited.
- the photocatalyst type deodorant is usually 1 to LOOO mass. Parts, preferably 20 to 500 parts by weight. It is preferable that the photocatalytic type deodorant and the physical adsorption type deodorant are present in a mixed state. When both are present separately, that is, a physical adsorption type deodorant is If it exists alone, it is not preferable because only the adsorptive function acts and the saturation is caused to lower the deodorizing ability.
- the physical adsorption type deodorant adsorbs gases such as offensive odor components, and also functions as an adsorption site until the odor is decomposed by the photocatalytic type deodorant.
- the photocatalyst type deodorant is granular, it is preferable because the substance has the same adsorption function as the physical adsorption type deodorant.
- a known adsorbent which is not particularly limited as long as it does not inhibit the activity of the photocatalytic function can be used.
- Preferable examples thereof include a phosphate of a tetravalent metal, a hydroxide of a divalent metal, and titanium dioxide.
- the method of causing the leather-like sheet substrate [1] or [2] to contain a deodorant is not particularly limited, but it is possible to prevent a decrease in the deodorant function due to post-treatment and to use a deodorant in the communication hole. From the viewpoint of the presence, it is preferable to impregnate the sheet substrate by immersing it in the liquid in which the deodorant is dispersed as much as possible.
- the dispersion for dispersing the deodorant is not particularly limited as long as it does not deteriorate the performance of the deodorant without deteriorating the leather-like sheet substrate [1] or [2].
- water or water to which alcohols or the like are added as a penetrant as necessary is used.
- the concentration of the deodorant in the dispersion is preferably from 0.01 to 30% by mass, more preferably from 0.1 to 5% by mass, from the viewpoint of the deodorizing function and the post-treatment. preferable.
- the liquid content (pickup rate) is preferably 30 to 90% by mass from the viewpoint of attaching the deodorant so as to cover the surface of the ultrafine fibers.
- the deodorant leather-like sheet of the present invention has both a high deodorant effect and a soft tactile sensation, and can be suitably used not only for clothing but also for interiors, shoes, bags, various gloves, and the like.
- the measurement of the surface area of the ultrafine fibers was performed according to the following procedure.
- the thickness of the obtained leather-like sheet is measured.
- the polymer elastic body is removed using a solvent or the like, or the fiber is removed to obtain a mass difference from that before the removal.
- the cross-sectional area of the ultrafine fibers constituting the entangled nonwoven fabric is measured at an arbitrary 10 point using a scanning electron microscope, and the average value is determined.
- the surface area per unit volume is determined by multiplying the surface area determined in (5) and the fiber mass determined in (3).
- the surface area of the ultrafine fiber is defined as only the area of the side surface of the ultrafine fiber.
- sea-island fibers were spun with 6-nylon island components and high-flow low-density polyethylene (40Z60 volume ratio of sea component and Z island components) as the sea component.
- the obtained sea-island type fiber was drawn, crimped and cut to obtain a staple fiber having a length of about 4 dtex and a cut length of 51 mm.
- the staple fiber was passed through a card, formed into a web by a cross wrapper system, and laminated. Then needle in needle stick density of 980 punch Zc m 2 using with felt needles Pabu of 1 point - to obtain an Dorupanchi to the basis weight 450GZm 2 nonwoven (fiber-entangled body).
- the surface After heating the nonwoven fabric, the surface is pressed to smooth the surface, the specific gravity of the nonwoven fabric is set to 0.28, then impregnated with a 15% solution of polyurethane in dimethylformamide (hereinafter abbreviated as DMF), and solidified with a DMF aqueous solution.
- DMF dimethylformamide
- hot water toluene is used to extract and remove polyethylene, which is a sea component in the fiber, and a 6-nylon ultrafine fiber bundle with a thickness of about 0.05 dtex and a polyurethane (with respect to the fiber 60% by mass) and the surface area of the ultrafine fibers is A leather-like sheet of 5.3 ⁇ 10 3 cm 2 Zcm 3 per unit volume of the coalescence was obtained.
- This sheet is divided into two parts in the middle of the thickness, and the divided surface is puffed with sandpaper to a thickness of 0.5 mm, and the surface opposite to the divided surface is treated with an emery puff machine to form a napped surface.
- dip dyeing was carried out with a Pines type dyeing machine.
- Atomiball TZ-R manufactured by Catalyzer Densei Kogyo Co., Ltd., anatase type TiO-Zn-supported colloid, average primary particle diameter 0.005 m
- a deodorant solution containing 85 parts of water and 0.1 part of a penetrant was impregnated at a liquid content of 60% by mass. This was dried, rubbed, and rubbed to obtain a deodorant suede-like leather-like sheet having a thickness of 0.7 mm and a basis weight of 210 g / m 2 .
- This deodorant suede-like leather-like sheet has the entire surface covered with extra-fine fiber naps, has the writing effect and soft touch that are the characteristics of suede that prevents the nap fibers from gathering together, and is transparent and deep. It had an elegant appearance with a distinctive blue color tone. When the deodorant leather-like sheet was observed with an electron microscope, some deodorants existed so as to cover the fiber surface! /
- the deodorant performance of this deodorant leather-like sheet was measured for 5 days using sulfur dioxide hydrogen gas by the method shown in the “Testing and Evaluation of Gas Removal Performance and Release” of the Japan Chemical Fiber Inspection Association. As a result, even after 5 days, it had sufficient deodorizing performance to reduce the gas concentration to 1/10 or less of the initial concentration.
- sea-island fibers were spun from 6-nylon island components and high-flow, low-density polyethylene (50/50 volume ratio of sea component Z island components) sea component.
- the obtained fiber was treated in the same manner as in Example 1 to obtain a nonwoven fabric (fiber entangled body) having a basis weight of 450 gZm 2 .
- the specific gravity of the non-woven fabric is set to 0.28, then impregnated with a 13% DMF solution, coagulated with a DMF aqueous solution, washed with hot water, and heated with hot toluene. Extracts and removes polyethylene, the sea component of 6-nylon, with a thickness of about 0.004 dtex. It is composed of a fiber entangled body composed of an ultrafine fiber bundle and polyurethane (60% by mass based on the fiber entangled body), and the surface area of the ultrafine fibers is 1.8 ⁇ 10 4 cm 2 / cm 3 per unit volume of the fiber entangled body. A leather-like sheet was obtained.
- This sheet was treated in the same manner as in Example 1 to obtain a deodorant suede-finished leather-like sheet having a thickness of 0.7 mm and a basis weight of 220 gZm 2 .
- This deodorant suede-like leather-like sheet has the entire surface covered with extra-fine fiber naps, has the writing effect and soft touch that are the characteristics of suede that prevents the nap fibers from gathering together, and is transparent and deep. It had an elegant appearance with a distinctive blue color tone. When the deodorant leather-like sheet was observed with an electron microscope, some deodorants existed so as to cover the fiber surface! /
- the resulting deodorant suede-like leather-like sheet has a surface area of ultrafine fibers of 5.7 ⁇ 10 4 cm 2 / cm 3 per unit volume of the fiber entangled body, and a thickness.
- the weight was 7 mm and the basis weight was 260 gZm 2 .
- This deodorant suede-like leather-like sheet has the entire surface covered with extra-fine fiber naps, has the writing effect and soft touch that are the characteristics of suede that prevents the nap fibers from gathering together, and is transparent and deep. It had an elegant appearance with a distinctive blue color tone. When observed with an electron microscope, some deodorants existed so as to cover the fiber surface.
- the deodorizing leather-like sheet has sufficient deodorizing performance to reduce the gas concentration to 1/10 or less of the initial concentration even after 5 days.
- the resulting deodorant suede-finished leather-like sheet has a surface area of ultrafine fibers of 9.9 x 10 3 cm 2 / cm 3 per unit volume of the fiber entangled body, a thickness of 0.7 mm and a basis weight of 250 gZm 2 . there were.
- This deodorant suede-like leather-like sheet has the entire surface covered with extra-fine fiber naps, has the writing effect and soft touch that are the characteristics of suede that prevents the nap fibers from collecting with each other, and has a clear and deep feeling. It had an elegant appearance with a distinctive blue color tone. When observed with an electron microscope, some deodorants existed so as to cover the fiber surface.
- the deodorizing leather-like sheet has sufficient deodorizing performance to reduce the gas concentration to 1/10 or less of the initial concentration even after 5 days.
- Example 5 In the same manner as in Example 1, the average primary particle size of 0. 01 / zm (Example 5) and 0. 015 m (Example 6), the thickness of 0. 7 mm, deodorant basis weight 270 g / m 2 A soft suede-like leather-like sheet was obtained.
- Each of the deodorant suede-like leather-like sheets has the entire surface covered with extra-fine fiber naps, and has a lighting effect and soft touch that are characteristic of suede that does not allow the nap fibers to gather together. It had an elegant appearance with a deep blue color tone. When observed with an electron microscope, some deodorants existed so as to cover the fiber surface.
- Example 2 Comparative Example 1 Example 2 was repeated except that the island component was 6-nylon, the sea component was high fluidity, low-density polyethylene, and the fineness after cutting was 5 dtex. Similarly, a 6-nylon fiber with an average single fineness of 0.2 dtex is composed of a fiber entangled body that also has ultrafine fiber bundling power and polyurethane (50% by mass based on the fiber entangled body). A leather-like sheet having a surface area of 2.4 ⁇ 10 3 cm 2 / cm 3 was obtained. Using this leather-like sheet, a deodorant suede-like leather-like sheet having a thickness of 0.7 mm and a basis weight of 220 gZm 2 was obtained in the same manner as in Example 4.
- the deodorant suede-like leather-like sheet had a transparent surface and a deep blue color appearance in which the entire surface was covered with thick ultrafine fiber naps so that the nap fibers could not be collected. It lacked the lighting effect and soft tactile sensation that are characteristic of force suede.
- the island component is 6-nylon and the sea component is In Riechiren, fineness after cut 5 dtex, spinning sea-island fibers of 36 islands, Nidorupa nonwoven basis weight 300 g / m 2 after inch, the specific gravity after pressing and 10.16, polyurethane Tan DMF impregnating A fiber entangled body and a polyurethane (130% by mass based on the fiber entangled body) which also have a 6-nylon ultrafine fiber bundling force in the same manner as in Example 4 except that the concentration of the solution is 25%.
- a deodorant suede-like leather-like sheet consisting of The surface area of the ultrafine fibers of the obtained deodorant suede-like leather-like sheet is 2.9 ⁇ 10 3 cm 2 Zcm 3 per unit volume of the fiber entangled body, 0.7 mm in thickness, and 180 gZm 2 in basis weight. there were.
- This deodorant suede-like leather-like sheet had an entire surface covered with extra-fine fiber naps, and had a transparent and deep blue color appearance that prevented the nap fibers from collecting with each other. Inferior to the lighting effect and soft touch that is characteristic of suede!
- the deodorizing effect was slightly high after 1 day, but the effect gradually decreased, and after 3 days, There was only an effect of reducing the gas concentration to about one-half the concentration, and almost no deodorizing effect was obtained after 5 days.
- the suede-like leather-like sheet of the present invention has excellent deodorizing performance effective for removing bad odors attached to living environment such as human sweat, body odor, cigarettes, and pets. Since it has an appearance and there is no deterioration in appearance due to the collection of nap fibers and the deodorant, it can be suitably used not only for clothing but also for interiors, shoes, bags, various gloves, etc. it can.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20050736663 EP1741827B1 (en) | 2004-04-27 | 2005-04-26 | Deodorant suede-tone-leather-like sheet |
US11/587,486 US7867600B2 (en) | 2004-04-27 | 2005-04-26 | Deodorant suede-tone-leather-like sheet |
JP2006512631A JP4621662B2 (ja) | 2004-04-27 | 2005-04-26 | 消臭性スエード調皮革様シート |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-131194 | 2004-04-27 | ||
JP2004131194 | 2004-04-27 |
Publications (1)
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WO2005103365A1 true WO2005103365A1 (ja) | 2005-11-03 |
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PCT/JP2005/007879 WO2005103365A1 (ja) | 2004-04-27 | 2005-04-26 | 消臭性スエード調皮革様シート |
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Country | Link |
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US (1) | US7867600B2 (ja) |
EP (1) | EP1741827B1 (ja) |
JP (1) | JP4621662B2 (ja) |
KR (1) | KR20070001246A (ja) |
CN (1) | CN100507143C (ja) |
TW (1) | TWI356860B (ja) |
WO (1) | WO2005103365A1 (ja) |
Cited By (1)
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JP2011074558A (ja) * | 2009-09-03 | 2011-04-14 | Toray Ind Inc | 抗ピリング性人工皮革 |
Families Citing this family (6)
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JP5400330B2 (ja) * | 2008-08-27 | 2014-01-29 | 帝人株式会社 | 光触媒含有極細繊維およびその製造方法 |
JP5760305B2 (ja) * | 2009-10-09 | 2015-08-05 | 富士通株式会社 | 保護袋 |
KR101724256B1 (ko) * | 2015-09-03 | 2017-04-07 | (주)나노미래생활 | 항균 인조피혁 및 이를 이용한 항균 물품 |
CN106350941B (zh) * | 2016-09-22 | 2019-06-11 | 黄沁 | 一种抗菌反渗透多功能无纺布及其生产工艺 |
CN115305726A (zh) * | 2022-07-13 | 2022-11-08 | 东风汽车集团股份有限公司 | 一种消减甲醛的pet超纤绒面革及其制备方法 |
CN115162024A (zh) * | 2022-07-13 | 2022-10-11 | 东风汽车集团股份有限公司 | 一种消减甲醛的尼龙超纤绒面革及其制备方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH11100778A (ja) * | 1997-09-24 | 1999-04-13 | Kuraray Co Ltd | 透湿性および消臭性に優れた人工皮革 |
JP2002242082A (ja) * | 2001-02-13 | 2002-08-28 | Kuraray Co Ltd | 皮革様シート |
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JP3022192B2 (ja) * | 1994-09-01 | 2000-03-15 | 小松精練株式会社 | 消臭、抗菌および防汚機能を有する繊維布帛 |
JPH10280270A (ja) | 1997-04-03 | 1998-10-20 | Toyobo Co Ltd | 抗菌防臭繊維及びその製造方法 |
CN1167844C (zh) * | 2000-01-26 | 2004-09-22 | 东丽株式会社 | 具有除臭或抗菌性的纤维构造物 |
JP2002088661A (ja) * | 2000-09-13 | 2002-03-27 | Kuraray Co Ltd | 抗菌性を有する皮革様シート |
-
2005
- 2005-04-26 KR KR1020067022283A patent/KR20070001246A/ko not_active Application Discontinuation
- 2005-04-26 WO PCT/JP2005/007879 patent/WO2005103365A1/ja not_active Application Discontinuation
- 2005-04-26 EP EP20050736663 patent/EP1741827B1/en active Active
- 2005-04-26 TW TW94113228A patent/TWI356860B/zh active
- 2005-04-26 US US11/587,486 patent/US7867600B2/en active Active
- 2005-04-26 CN CNB2005800134325A patent/CN100507143C/zh active Active
- 2005-04-26 JP JP2006512631A patent/JP4621662B2/ja active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH11100778A (ja) * | 1997-09-24 | 1999-04-13 | Kuraray Co Ltd | 透湿性および消臭性に優れた人工皮革 |
JP2002242082A (ja) * | 2001-02-13 | 2002-08-28 | Kuraray Co Ltd | 皮革様シート |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2011074558A (ja) * | 2009-09-03 | 2011-04-14 | Toray Ind Inc | 抗ピリング性人工皮革 |
Also Published As
Publication number | Publication date |
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TWI356860B (en) | 2012-01-21 |
EP1741827B1 (en) | 2013-07-10 |
JPWO2005103365A1 (ja) | 2008-03-13 |
KR20070001246A (ko) | 2007-01-03 |
EP1741827A1 (en) | 2007-01-10 |
CN1946897A (zh) | 2007-04-11 |
US7867600B2 (en) | 2011-01-11 |
CN100507143C (zh) | 2009-07-01 |
JP4621662B2 (ja) | 2011-01-26 |
TW200606301A (en) | 2006-02-16 |
US20070212962A1 (en) | 2007-09-13 |
EP1741827A4 (en) | 2011-07-06 |
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