WO2021039980A1 - 繊維物品 - Google Patents

繊維物品 Download PDF

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Publication number
WO2021039980A1
WO2021039980A1 PCT/JP2020/032653 JP2020032653W WO2021039980A1 WO 2021039980 A1 WO2021039980 A1 WO 2021039980A1 JP 2020032653 W JP2020032653 W JP 2020032653W WO 2021039980 A1 WO2021039980 A1 WO 2021039980A1
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WO
WIPO (PCT)
Prior art keywords
fiber
outer diameter
article
value
range
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/032653
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
義隆 伊藤
大村　雅也
純子 牧野
原　聡
博昭 新谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Daicel Corp
Original Assignee
Daikin Industries Ltd
Daicel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daikin Industries Ltd, Daicel Corp filed Critical Daikin Industries Ltd
Priority to CN202080048012.5A priority Critical patent/CN114051544A/zh
Priority to JP2021543054A priority patent/JP7591505B2/ja
Priority to EP20859257.6A priority patent/EP4023803B1/en
Priority to US17/637,599 priority patent/US12104300B2/en
Publication of WO2021039980A1 publication Critical patent/WO2021039980A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/007—Addition polymers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/08—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of fibres or yarns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1638—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate
    • B01D39/1653—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4291—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4282—Addition polymers
    • D04H1/4318—Fluorine series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • D04H1/43828—Composite fibres sheath-core
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43835—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43838—Ultrafine fibres, e.g. microfibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/009—Condensation or reaction polymers
    • D04H3/011—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/013—Regenerated cellulose series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
    • D04H3/03—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments at random
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0414—Surface modifiers, e.g. comprising ion exchange groups
    • B01D2239/0421—Rendering the filter material hydrophilic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0636—Two or more types of fibres present in the filter material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/064—The fibres being mixed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/0645—Arrangement of the particles in the filtering material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1233—Fibre diameter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1291—Other parameters
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/04—Filters

Definitions

  • This disclosure relates to textile articles.
  • the textile article is used, for example, as a filtration member for filtering impurities mixed in a fluid.
  • a textile article for example, as disclosed in Patent Document 1, a textile article containing different types of fibers is known.
  • a fiber article containing different types of fibers is desired to maintain a stable state of each fiber, for example, in order to express the function of each fiber and sufficiently obtain the performance thereof.
  • the textile article according to one aspect of the present disclosure is supported by a plurality of first fibers and the first fibers in a dispersed state having an outer diameter smaller than that of the first fibers.
  • the ratio D1 / D2 of the outer diameter D1 of the first fiber to the outer diameter D2 of the second fiber including a plurality of second fibers is set to a value in the range of 15.0 or more and 1666.7 or less.
  • the outer diameter D1 is set to a value in the range of 5.0 ⁇ m or more and 50.0 ⁇ m or less
  • the outer diameter D2 is set to a value in the range of 30.0 nm or more and 1.0 ⁇ m or less.
  • the second fiber which has a significantly smaller outer diameter than the first fiber, is supported by the first fiber in a dispersed state, thereby preventing the second fiber from being cut and the second fiber. Can be stably supported by the first fiber.
  • each state of the first fiber and the second fiber in the fiber article can be stably maintained while arranging the first fiber and the second fiber so as to be able to exert their respective functions.
  • a relatively large fiber gap formed by the plurality of first fibers can be obtained.
  • the relatively small fiber gaps formed by the plurality of second fibers can be abundantly formed in the fiber article.
  • a bulky fiber article can be obtained as compared with, for example, a fiber article composed of only the second fiber. Therefore, since the fluid can be abundantly distributed in the fiber article, for example, a fiber article having a highly efficient filtration function can be realized.
  • the outer diameter D1 may be set to a value in the range of 20.0 ⁇ m or more and 30.0 ⁇ m or less.
  • the first fiber may be crimped. As a result, abundant fiber gaps can be formed in the fiber article, and the fiber article can be easily formed in a bulky manner.
  • the fiber article can be arranged in the fluid flow path so as to easily come into contact with the fluid, so that the functions of the first fiber and the second fiber can be easily exerted with respect to the fluid.
  • the total volume V1 of the first fiber and the total volume V2 of the second fiber and the resin granules are combined with the resin granules attached to the first fiber and having the same composition as the second fiber.
  • the ratio V1 / V2 to and to may be set to a value in the range of 1.9 or more and 124.0 or less.
  • the pressure loss when air is passed through at a flow velocity of 5.3 cm / sec may be set to a value in the range of 3 Pa or more and 35 Pa or less.
  • the first fiber may be at least one of rayon, polypropylene, polyethylene terephthalate, polyethylene, and cellulose acetate. As a result, the selection range of the first fiber can be widened and the degree of freedom in designing the textile article can be improved.
  • the second fiber may be made of a fibrous polymer. By using such a polymer, the second fiber can be efficiently produced.
  • the second fiber may contain at least one of polytetrafluoroethylene, polypropylene, polyethylene and polyamide. As a result, the selection range of the second fiber can be widened and the degree of freedom in designing the textile article can be improved.
  • the second fiber may mainly contain polytetrafluoroethylene.
  • polytetrafluoroethylene As a result, the high functionality of polytetrafluoroethylene can be stably exhibited in textile articles.
  • the function of each fiber in a fiber article containing different types of fibers, the function of each fiber can be satisfactorily exhibited, and the state of each fiber in the fiber article can be stably maintained.
  • FIG. 1 is a schematic view of the textile article 1 according to the embodiment.
  • FIG. 1 an enlarged view schematically showing the internal structure of the textile article 1 is also shown.
  • the fiber article 1 shown in FIG. 1 is arranged in a flow path of a fluid and is used as a filtration member for filtering impurities mixed in the fluid.
  • the fluid may be either a gas or a liquid.
  • the textile article 1 is in the form of a sheet having a thickness dimension of 3.0 mm or more.
  • the thickness dimension is set to a value in the range of, for example, 3.0 mm or more and 10.0 mm or less.
  • the fibrous article 1 has a basis weight of 100.0 g / m 2 or more 400.0 g / m 2 or less in the range of values (here, about 200 g / m 2) is set to.
  • the textile article 1 includes a plurality of first fibers 2 and a plurality of second fibers 3.
  • the first fiber 2 has a higher strength (for example, tensile strength) than the second fiber 3.
  • the plurality of first fibers 2 are used as the skeleton of the fiber article 1.
  • the first fiber 2 of this embodiment is crimped. By using a plurality of crimped first fibers 2, the fiber article 1 is formed to have a relatively low fiber density and a high volume.
  • the second fiber 3 has a smaller outer diameter than the first fiber 2 and is supported by the first fiber 2 in a dispersed state.
  • the second fiber 3 is arranged so as to diffuse throughout the inside of the fiber article 1.
  • the ratio D1 / D2 of the outer diameter D1 of the first fiber 2 to the outer diameter D2 of the second fiber 3 is set to a value in the range of 15.0 or more and 1666.7 or less.
  • the fiber article 1 includes the first fiber 2 having a large outer diameter D1 and the second fiber 3 having a significantly smaller outer diameter D2 than the first fiber 2.
  • the ratio D1 / D2 is set to a value in the range of 15.0 or more and 1300.0 or less. Further, the ratio D1 / D2 is more preferably set to a value in the range of 15.0 or more and 714.3 or less, and further preferably set to a value in the range of 15.0 or more and 300.0 or less. ..
  • the ratio D1 / D2 can be set to a value in the range of 60.0 or more and 1666.7 or less. It is desirable that the ratio D1 / D2 is further set to a value in the range of 60.0 or more and 1300.0 or less. Further, the ratio D1 / D2 is more preferably set to a value in the range of 60.0 or more and 714.3 or less, and further preferably set to a value in the range of 60.0 or more and 300.0 or less. desirable.
  • the outer diameter D1 is set to a value in the range of 5.0 ⁇ m or more and 50.0 ⁇ m or less. By setting the outer diameter D1 to a value in such a range, the second fiber 3 can be satisfactorily stretched around the first fiber 2. It is desirable that the outer diameter D1 is further set to a value in the range of 20.0 ⁇ m or more and 30.0 ⁇ m or less.
  • the outer diameter D2 is set to a value in the range of 30.0 nm or more and 1.0 ⁇ m or less. By setting the outer diameter D2 to a value in such a range, it is possible to prevent the second fiber 3 from becoming excessively thin while clarifying the difference in the outer diameter between the first fiber 2 and the second fiber 3.
  • the second fiber 3 can be easily manufactured.
  • the outer diameter D2 is preferably set to a value in the range of 30.0 nm or more and 800 nm or less, and further preferably set to a value in the range of 30.0 nm or more and 166.7 nm or less. In another example, it is desirable that the outer diameter D2 is set to a value in the range of 50.0 nm or more and 800.0 nm or less.
  • the ratio V1 / V2 of the total volume V1 of the first fiber 2 to the total volume V2 of the total volume V2 of the second fiber 3 and the resin granular material 4 is 1.9 or more and 124.0 or less. It is set to a value in the range. It is desirable that the ratio V1 / V2 is further set to a value in the range of 20.0 or more and 124.0 or less.
  • the fiber gaps of the plurality of first fibers 2 and the fiber gaps of the plurality of second fibers 3 are inside. Is formed in. In other words, a network structure of the first fiber 2 and the second fiber 3 is formed inside the fiber article 1. Since the second fiber 3 is attached to the first fiber 2, this network structure is not easily destroyed even if some external force acts during the use of the fiber article 1.
  • the fiber article 1 is provided with abundant fiber gaps inside. Therefore, the textile article 1 has a relatively low pressure loss when the fluid is circulated inside.
  • the pressure loss when air is passed through at a flow velocity of 5.3 cm / sec is set to a value in the range of 3 Pa or more and 35 Pa or less.
  • a value in the range of 5 Pa or more and 35 Pa or less, or a value in the range of 15 Pa or more and 35 Pa or less can be mentioned.
  • This pressure loss can be measured by the following procedure using a general pressure loss measuring device. That is, the measurement sample was set in a holder having an inner diameter of 113 mm (effective area as a filter medium 100 cm 2 ), and the flow velocity of the air flowing through the measurement sample was adjusted with a flow meter so as to be 5.3 cm / sec. At this time, the pressure loss generated between the upstream side and the downstream side in the air flow direction of the measurement sample can be measured by a manometer.
  • the second fiber 3 is supported on the first fiber 2 while being entangled with the first fiber 2. Therefore, even when the outer diameter D2 of the second fiber 3 is smaller than the outer diameter D1 of the first fiber 2, the second fiber 3 is replaced with the first fiber 2 while preventing damage such as cutting of the second fiber 3. I can support it. Therefore, the function of the second fiber 3 can be maintained for a long period of time.
  • the value of the ratio D1 / D2 can be appropriately set as long as it is in the range of 15.0 or more and 1666.7 or less.
  • the value of the ratio D1 / D2 is less than 15.0, the effect of exerting each function of the two types of fibers having different outer diameters in the textile article 1 is reduced.
  • the value of the ratio D1 / D2 exceeds 1666.7, for example, the outer diameter D1 is too thick and it becomes difficult to stretch the second fiber 3 around the first fiber 2, or the outer diameter D2 is too thin. If the second fiber 3 cannot be formed, it may be difficult to manufacture the textile article 1.
  • the weight of the second fiber 3 used in the textile article 1 can be reduced. Therefore, the amount of the second fiber 3 used in the production of the textile article 1 can be reduced. Therefore, the second fiber 3 having high functionality can be suitably used as the material of the fiber article 1 while suppressing the production cost of the fiber article 1. As a result, in the present embodiment, the degree of freedom in designing the second fiber 3 is improved.
  • the fiber article 1 of the present embodiment contains a resin granular material 4 that is attached to the first fiber 2 and has the same composition as the second fiber 3.
  • the resin granule 4 is composed of a fibrous polymer.
  • an external force is applied to the resin granules 4 by opening the first fibers 2 in a state where the resin granules 4 are attached to a plurality of crimped first fibers 2, and the resin is resin.
  • the second fiber 3 is formed from the granular material 4. As shown in the enlarged view in FIG. 1, some resin granules 4 may remain in the finished textile article 1. Depending on the manufacturing method of the fiber article 1, the resin granules 4 may not remain in the fiber article 1.
  • the resin granular material 4 contains a lamellar structure.
  • the lamellar structure referred to here refers to a structure in which polymer chains constituting the resin of the resin granular material 4 are connected and folded.
  • the lamellar structure contained in the resin granular material 4 is specifically a fine fiber formed by connecting the polymer chains in a ribbon shape in millions of units. The fine fibers are folded and stored inside the resin granular material 4.
  • the resin granule 4 can be paste-extruded as an example.
  • the material of the first fiber 2 can be appropriately selected.
  • an aqueous dispersion containing the resin granules 4 in a dispersed state (hereinafter, simply referred to as an aqueous dispersion) is used.
  • the resin granules 4 are attached to the first fiber 2 by being attached to the first fiber 2, the water contact angle ⁇ 1 immediately after the water droplets are dropped on the surface of the first fiber 2 is the aqueous dispersion of the first fiber 2. It is preferable that the value is set to a certain low value in order to increase the affinity for.
  • the first fiber 2 contains at least one of rayon, polypropylene (PP), polyethylene terephthalate (PET), polyethylene (PE), and cellulose acetate.
  • the first fiber 2 of the present embodiment is a cellulose acetate fiber.
  • the fiber article 1 contains a first fiber 2 formed by crimping and opening a toe (toe band) containing a plurality of cellulose acetate fibers. As a result, the textile article 1 has a good bulkiness.
  • the first fiber 2 is a long fiber longer than the second fiber 3.
  • the first fiber 2 is a crimped long fiber, for example, even when the number of the first fiber 2 is small, the second fiber 3 abundant in the first fiber 2 can be stably supported.
  • the first fiber 2 is not limited to the long fiber and may be a short fiber.
  • an oil emulsion containing a fiber oil agent and water (hereinafter, simply referred to as an oil emulsion), which is used when spinning the cellulose acetate fiber, and a cellulose acetate fiber are applied. At least one of the waters used for crimping (here both) is attached. As a result, the surface of the first fiber 2 has hydrophilicity.
  • the water contact angle ⁇ 1 is, for example, a value in the range of 10 ° or more and 40 ° or less, and the affinity of the first fiber 2 with the aqueous dispersion ( It is desirable to impart hydrophilicity). It is more desirable that the water contact angle ⁇ 1 is a value in the range of 20 ° or more and 35 ° or less.
  • the water contact angle ⁇ 1 can be adjusted by, for example, the amount of at least one of water or oil emulsion on the surface of the first fiber 2. As an example, when the amount of attachment is increased, the water contact angle ⁇ 1 is increased, and when the amount of attachment is decreased, the water contact angle ⁇ 1 is decreased.
  • the water contact angle ⁇ 1 may be adjusted by adhering another component different from water or oil emulsion to the surface of the first fiber 2.
  • the cross-sectional shape of the first fiber 2 can be set as appropriate.
  • the cross-sectional shape of the first fiber 2 can be set to, for example, a circular shape, a Y-shape, or an indefinite shape.
  • the surface area of the first fiber 2 can be adjusted. In a certain range, the greater the dysplasia of the cross section of the first fiber 2, the larger the surface area of the first fiber 2. As a result, the first fiber 2 can be easily brought into contact with the second fiber 3 and the fluid.
  • the cross-sectional shape of the first fiber 2 can be adjusted by changing the peripheral shape of the spinning hole when the first fiber 2 is spun by, for example, a dry spinning method.
  • the outer diameter D1 of the first fiber 2 and the outer diameter D2 of the second fiber 3 referred to here appear on the shooting screen after photographing the fiber cross sections of a plurality of fibers (10 fibers in this case). It can be calculated as the average value of the maximum outer diameter of the fiber cross section.
  • the textile article 1 may include a plurality of first fibers 2 having different cross-sectional shapes.
  • the second fiber 3 is arranged so as to intersect the first fiber 2 and is attached to the first fiber 2.
  • the second fiber 3 of the present embodiment is attached to the first fiber 2 by a van der Waals force.
  • the first fiber 2 and the second fiber 3 have a good affinity for each other.
  • the second fiber 3 is made of a fibrous polymer as an example.
  • the second fiber 3 contains at least one of polytetrafluoroethylene (hereinafter, also referred to as PTFE), polypropylene (PP), polyethylene (PE), and polyamide (PA). Is preferable.
  • the second fiber 3 of the present embodiment mainly contains PTFE (in other words, more than 50% by weight of the total weight).
  • the second fiber 3 is a PTFE ultrafine fiber.
  • the PTFE used as the material of the second fiber 3 will be described.
  • This PTFE is configured as a fibrous polymer.
  • Such PTFE is, for example, high molecular weight PTFE obtained from emulsion polymerization or suspension polymerization of TFE.
  • the high molecular weight PTFE may be at least one of modified PTFE and homo-PTFE.
  • Modified PTFE is composed of TFE and a monomer (modified monomer) other than TFE.
  • the modified PTFE is generally modified uniformly with a modified monomer or modified at the initial stage or the final stage of the polymerization reaction, but is not particularly limited.
  • Modified PTFE includes a TFE unit based on TFE and a modified monomer unit based on a modified monomer.
  • the modified monomer unit is a part of the molecular structure of the modified PTFE and is a portion derived from the modified monomer.
  • the total monomer unit is derived from all the monomers in the molecular structure of the modified PTFE.
  • the modified monomer is not particularly limited as long as it can be copolymerized with TFE.
  • the "high molecular weight" of the high molecular weight PTFE referred to here is a molecular weight at which fibrils that are easily fibrous during the production of the fiber article 1 and have a long fiber length can be obtained, and have a standard specific gravity (SSG) of 2.130 or more. It is a value in the range of 230 or less, and indicates a molecular weight that does not substantially melt and flow due to its high melt viscosity.
  • SSG standard specific gravity
  • the water contact angle ⁇ 2 immediately after dropping water droplets on the surface of the textile article 1 is set to a certain degree in consideration of the hydrophilicity of the aqueous dispersion when the aqueous dispersion is used in the production of the textile article 1.
  • the water contact angle ⁇ 2 is preferably a value in the same range as the water contact angle ⁇ 1.
  • the water contact angles ⁇ 1 and ⁇ 2 can be measured, for example, by observing the surface of the object on which the water droplet is dropped with a microscope from the side of the water droplet. Specifically, for the water contact angles ⁇ 1 and ⁇ 2, for example, a commercially available contact angle meter (contact angle meter “DMs-401” manufactured by Kyowa Interface Science Co., Ltd.) is used to drop water droplets on the object. It is calculated as the average value of the measured values when the contact angle is measured at 5 points.
  • DMs-401 manufactured by Kyowa Interface Science Co., Ltd.
  • the water contact angles ⁇ 1 and ⁇ 2 are set to relatively low values in order to increase the affinity of the first fiber 2 with respect to the aqueous dispersion.
  • the dispersion for dispersing the resin granules 4 is shown.
  • the water contact angles ⁇ 1 and ⁇ 2 may be set to relatively high values according to the characteristics of.
  • the dispersion liquid containing the resin granules 4 in a dispersed state may be adjusted so that the contact angle of the first fiber 2 with respect to the surface is lowered, for example, in order to increase the affinity for the first fiber 2.
  • the water contact angles ⁇ 1 and ⁇ 2 can be set to some free values.
  • the second fiber 3 is supported by the first fiber 2 in a dispersed state in which the second fiber 3 having a significantly smaller outer diameter than the first fiber 2 is dispersed.
  • the second fiber 3 can be stably supported by the first fiber 2 while preventing it from being cut.
  • each state of the first fiber 2 and the second fiber 3 in the fiber article 1 can be stably maintained while arranging the first fiber 2 and the second fiber 3 so as to be able to exert their respective functions.
  • the outer diameter D1 formed by the plurality of first fibers 2 is relatively large. Both the fiber gaps and the relatively small fiber gaps formed by the plurality of second fibers 3 can be abundantly formed in the fiber article 1. As a result, a bulky fiber article 1 can be obtained as compared with the fiber article 1 composed of only the second fiber 3, for example. Therefore, since the fluid can be abundantly distributed in the fiber article 1, for example, the fiber article 1 having a highly efficient filtration function can be realized.
  • an ultrafine second fiber 3 having an outer diameter D2 of 1.0 ⁇ m or less with a first fiber 2 having a relatively thick outer diameter D1 and supporting the second fiber 3 with the first fiber 2, for example, a resin. It is possible to manufacture the fiber article 1 which is bulkier than the case where the fiber article is manufactured only by the fiber, and also to manufacture the fiber article 1 which can exhibit the function of the second fiber 3 for a long period of time.
  • the outer diameter D1 is set to a value in the range of 5.0 ⁇ m or more and 50.0 ⁇ m or less.
  • the outer diameter D1 is set to a value in the range of 20.0 ⁇ m or more and 30.0 ⁇ m or less.
  • the first fiber 2 is crimped. As a result, abundant fiber gaps can be formed in the fiber article 1, and the fiber article 1 can be easily formed in a bulky manner.
  • the fiber gaps of the plurality of first fibers 2 and the fiber gaps of the plurality of second fibers 3 are formed. It is formed inside.
  • abundant fiber gaps can be provided in the fiber article 1 to facilitate the function of the second fiber 3.
  • the textile article 1 is formed in a sheet shape having a thickness dimension of 3.0 mm or more.
  • the fiber article 1 can be arranged in the fluid flow path so as to easily come into contact with the fluid, so that the functions of the first fiber 2 and the second fiber 3 can be easily exerted on the fluid.
  • the fiber article 1 of the present embodiment contains a resin granular material 4 attached to the first fiber 2 and having the same composition as the second fiber 3, and has a total volume V1 of the first fiber 2 and a second fiber 3.
  • the ratio V1 / V2 of the total volume V2 including the resin granules 4 and the resin granules 4 is set to a value in the range of 1.9 or more and 124.0 or less.
  • the pressure loss when air is passed through at a flow velocity of 5.3 cm / sec is set to a value in the range of 3 Pa or more and 35 Pa or less.
  • the first fiber 2 is at least one of rayon, polypropylene, polyethylene terephthalate, polyethylene, and cellulose acetate. As a result, the selection range of the first fiber 2 can be widened and the degree of freedom in designing the fiber article 1 can be improved.
  • the second fiber 3 is made of a fibrous polymer. By using such a polymer, the second fiber 3 can be efficiently produced. Further, in the textile article 1, the second fiber 3 contains at least one of polytetrafluoroethylene, polypropylene, polyethylene, and polyamide. As a result, the selection range of the second fiber 3 can be widened and the degree of freedom in designing the fiber article 1 can be improved.
  • the second fiber 3 mainly contains polytetrafluoroethylene.
  • the high functionality of polytetrafluoroethylene can be stably exhibited in the textile article 1.
  • the outer diameter D1 was set to 20 ⁇ m by adjusting the spinning conditions, and the cellulose acetate fiber, which was a crimped long fiber, was used as the first fiber 2. Further, by adjusting the composition of the resin granular material 4 and the drawing conditions of the resin granular material 4 accompanying the opening of the first fiber 2, the PTFE fiber having the outer diameter D2 set to 70 nm can be obtained as the second fiber 3. Used as. Using these fibers 2 and 3, the fiber article 1 of the example was produced.
  • FIG. 2 is an SEM (scanning electron microscope) photograph of a textile article according to an example.
  • FIG. 1 is an SEM (scanning electron microscope) photograph of a textile article according to an example.
  • FIG. 3 is an SEM photograph of a textile article according to a comparative example.
  • the textile article 1 having the structure shown in FIG. 2 can be produced.
  • the outer diameter D1 of the first fiber 2 is set to a value in the range of 10 ⁇ m or more and 50 ⁇ m or less
  • the outer diameter D2 of the second fiber 3 is set to a value in the range of 40 nm or more and 120 nm or less
  • the ratio D1 / It was confirmed that the textile article 1 could be produced when D2 was set to a value in the range of 83.3 or more and 1250.0 or less.
  • Comparative Examples 1 to 3 it was confirmed that none of them could produce textile articles.
  • the outer diameter D2 (20.0 nm) of Comparative Examples 1 and 2 is the second even if the composition of the resin granules that are the source of the second fiber, the type of the raw material, or the drawing conditions of the resin granules are adjusted. It was confirmed that the value was such that fiber could not be produced. Further, in Comparative Example 3, it was confirmed that the outer diameter D1 (60.0 ⁇ m) was too thick and the fiber voids became excessive, making it difficult for the first fiber to hold the second fiber. As a result, the superiority of Examples 1 to 3 over Comparative Examples 1 to 3 was confirmed.
  • the fiber article 1 is not limited to the sheet shape, and may have other shapes (for example, a rectangular parallelepiped shape, a columnar shape, a spherical shape, a polygonal shape). Further, it may be used in a state where a plurality of textile articles 1 are combined.
  • the function of each fiber in a fiber article containing different types of fibers, the function of each fiber can be satisfactorily exhibited, and the excellent effect of stably maintaining the state of each fiber in the fiber article can be obtained. Have. Therefore, it is beneficial to widely apply it as a textile article capable of exerting the significance of this effect.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Nonwoven Fabrics (AREA)
PCT/JP2020/032653 2019-08-30 2020-08-28 繊維物品 Ceased WO2021039980A1 (ja)

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EP20859257.6A EP4023803B1 (en) 2019-08-30 2020-08-28 Fiber article
US17/637,599 US12104300B2 (en) 2019-08-30 2020-08-28 Fiber article

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WO2024228360A1 (ja) 2023-05-02 2024-11-07 株式会社ダイセル 繊維物品
WO2024228361A1 (ja) 2023-05-02 2024-11-07 株式会社ダイセル 繊維物品の製造方法
WO2026042769A1 (ja) * 2024-08-22 2026-02-26 株式会社ダイセル 積層体

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US20220275546A1 (en) 2022-09-01
EP4023803A1 (en) 2022-07-06
US12104300B2 (en) 2024-10-01
JP7591505B2 (ja) 2024-11-28
EP4023803B1 (en) 2024-10-23

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