US20180030619A1 - Down-like fiber - Google Patents

Down-like fiber Download PDF

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Publication number
US20180030619A1
US20180030619A1 US15/452,973 US201715452973A US2018030619A1 US 20180030619 A1 US20180030619 A1 US 20180030619A1 US 201715452973 A US201715452973 A US 201715452973A US 2018030619 A1 US2018030619 A1 US 2018030619A1
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United States
Prior art keywords
shaped
fiber
bottom end
lobes
fibers
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.)
Abandoned
Application number
US15/452,973
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English (en)
Inventor
Shing Lang Cheng
Kuo Chung Wu
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.)
Shinkong Synthetic Fibers Corp
Original Assignee
Shinkong Synthetic Fibers Corp
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Filing date
Publication date
Application filed by Shinkong Synthetic Fibers Corp filed Critical Shinkong Synthetic Fibers Corp
Assigned to SHINKONG SYNTHETIC FIBERS CORPORATION reassignment SHINKONG SYNTHETIC FIBERS CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHENG, SHING-LANG, WU, KUO CHUNG
Publication of US20180030619A1 publication Critical patent/US20180030619A1/en
Abandoned legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
    • D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/08—Melt spinning methods
    • D01D5/098—Melt spinning methods with simultaneous stretching
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; Spinnerette packs therefor

Definitions

  • the present invention relates to a down-like fiber, particularly, to a down-like fiber with a hollow stem and a plurality of shaped lobes.
  • Natural feathers consist of vaned feathers and down feathers; the former has hollow stems, and the latter does not.
  • the arrangement of both vaned feathers and down feathers forms irregular spaces, thereby trapping air to reduce heat dissipation and thus can provide warm effect.
  • the warm effect of natural feathers is extremely decreased due to absorption of water.
  • the present invention provides a down-like fiber which possesses an effect of keeping warm just like feathers, and presents an outstanding fast drying effect as well.
  • the present invention provides a down-like fiber which comprises a hollow stem and a plurality of shaped lobes arranged radially from the hollow stem as a center, wherein each of the shaped lobes comprises a bottom end and a head end opposite the bottom end.
  • the bottom end connects to a surface of the hollow stem, and the head ends of two adjacent shaped lobes do not connect with one another to form an opening.
  • the shaped lobes can be T-shaped, cross-shaped, Y-shaped, ⁇ -shaped, ⁇ -shaped, W-shaped, H-shaped, V-shaped or rectangular-shaped and the number of the shaped lobes can range from 2 to 6.
  • the down-like fiber stated above can be a filament or a staple.
  • the present invention also provides a spinneret for manufacturing the down-like fiber stated above.
  • the spinneret comprises a plurality of slits of spinning nozzles.
  • Each of the slits of spinning nozzles comprises an inner ring portion and an outer lobe portion which has a bottom end and a head end opposite the bottom end wherein the bottom end connects to the inner ring portion.
  • the inner ring portions of the plurality of slits of spinning nozzles are arranged in a circle at a regular interval, and the head ends of two adjacent outer lobe portions do not connect with one another to form an opening.
  • the outer lobe portion can be T-shaped, cross-shaped, Y-shaped, ⁇ -shaped, ⁇ -shaped, W-shaped, H-shaped, V-shaped or rectangular-shaped.
  • the number of the slits of spinning nozzles can range from 2 to 6.
  • the present invention also provides a method for manufacturing the above down-like fiber, which comprises extruding a polyester polymer in melting form through the spinneret stated above.
  • the down-like fiber provided by the present invention has a hollow stem and shaped lobes which imitates the structure of feathers, and thus can not only conserve heat dissipated from body but also lighten the weight of fiber, thereby providing a soft touch feeling. Moreover, since the head ends of adjacent shaped lobes do not connect with each other, the ditches formed therefrom can improve drainage functions. Accordingly, the effects of keeping warm and fast-drying can be achieved.
  • FIG. 1 schematically shows the cross section of the down-like fiber having T-shaped lobes according to one embodiment of the present invention
  • FIGS. 2A to 2H schematically show the cross sections of the down-like fibers having different shaped lobes according to embodiments of the present invention
  • FIG. 3 shows a photograph of the cross section of physical samples of down-like fibers having T-shaped lobes
  • FIG. 4 schematically shows the arrangement of several down-like fibers having T-shaped lobes according to one embodiment of the present invention
  • FIG. 5A schematically shows a spinneret used for manufacturing down-like fibers having T-shaped lobes according to one embodiment of the present invention
  • FIG. 5B schematically shows a spinneret used for manufacturing down-like fibers having cross-shaped lobes according to one embodiment of the present invention.
  • FIG. 6 shows a bar graph of warm effect tests.
  • FIG. 1 schematically shows the cross section of the down-like fiber having T-shaped lobes according to one embodiment of the present invention.
  • the fiber 10 comprises a hollow stem 13 and four T-shaped lobes 11 which arrange radially from the hollow stem 13 as a center.
  • Each of T-shaped lobes 11 comprises a head end 112 and a bottom end 111 wherein the bottom end 111 connects to the surface of the hollow stem 13 , and the head ends 112 of two adjacent T-shaped lobes 11 do not connect with one another to form an opening 12 .
  • the opening 12 can be used as a ditch to drain moisture.
  • FIGS. 2A to 2H schematically show the cross sections of the down-like fibers having different shaped lobes according to other embodiments of the present invention.
  • the shaped lobes can be cross-shaped, Y-shaped, ⁇ -shaped, ⁇ -shaped, W-shaped, H-shaped, V-shaped or rectangular-shaped.
  • the number of the shaped lobes is preferably from 2 to 6. That is because if the number of the shaped lobes is above 6, the design of spinning nozzles will become more complicate and thus lead to increasing the cost; however, if the number of the shaped lobes is too few, the drainage function and warm effect of fibers will be affected.
  • FIG. 3 shows a photograph of the cross section of physical samples of down-like fibers having T-shaped lobes.
  • FIG. 4 schematically shows the arrangement of several down-like fibers having T-shaped lobes according to one embodiment of the present invention.
  • the opening 12 formed therefrom can be used as a ditch. Since water can be drained through the openings 12 , the fabrics woven by the fiber 10 demonstrate an outstanding drying effect after absorbing moisture or sweat.
  • many air rooms formed by the arrangement of the head ends 112 of the T-shaped lobes 11 in combination with the closed hollow stems 13 , can further conserve heat emitted from a human body, thereby enhancing the warm effect.
  • FIG. 5A schematically shows a spinneret for manufacturing a down-like fiber having T-shaped lobes according to one embodiment of the present invention.
  • a spinneret 20 comprises four “ ” shaped slits of spinning nozzles 21 .
  • Each of slits of spinning nozzles 21 comprises an inner ring portion 211 and an outer lobe portion 213 , wherein the outer lobe portion 213 has a bottom end 215 and a head end 217 opposite the bottom end 215 , and the bottom end 215 connects to the inner ring portion 211 .
  • the inner ring portions 211 of the four slits of spinning nozzles 21 are arranged in a circle at a regular interval, and the head ends 217 of two adjacent outer lobe portions 213 do not connect with one another to form an opening 22 .
  • a polymer is extruded from the slits of spinning nozzles 21 which will further swell and connect at the inner ring portions 211 to form a hollow ring, thereby producing the fiber 10 shown in FIG. 1 .
  • Polymers suitable for manufacturing fibers of the present invention include but not limited to polyester, nylon, polyolefin, polyacrylonitrile or cellulose, wherein polyester can be polyethylene terephthalate (PET), polybutylene terephthalate (PBT) or polypropylene terephthalate (PPT); nylon can be nylon 6 (N6) or nylon 66 (N66); and polyolefin can be polypropylene (PP) or polyethylene (PE).
  • additives can be further added in the fibers of the present invention which include but not limited to antibacterial and antifungal agents, anti-conductive agents, deodorants, anti-ultraviolet agents or far-infrared agent.
  • FIG. 5B schematically shows a spinneret used for manufacturing down-like fibers of FIG. 2A which have cross-shaped lobes according to one embodiment of the present invention.
  • the spinneret 30 comprises four “ ” shaped slits of spinning nozzles 31 .
  • the outer lobe portion 313 of the slit of spinning nozzle 31 is “cross-shaped”.
  • the outer lobe portion 313 can be Y-shaped, ⁇ -shaped, ⁇ -shaped, W-shaped, H-shaped, V-shaped or rectangular-shaped to manufacture down-like fibers having different shaped lobes shown in FIGS. 2B to 2H .
  • the polyester polymer in melting form is extruded through a spinneret as shown in FIG. 5A at spinning temperature of 290° C.; quenched by cooling air at a rate of 1.0 m/s; and spun at a spinning rate of 700 m/min.
  • the filaments are drawn at a total elongation of 2.89 times followed by thermosetting at 160° C., cooling, wrinkling, oiling, drying, cutting, and packaging steps.
  • the down-like staples of 3d*51 mm whose cross section is a hollow stem with four T-shaped lobes are thus obtained.
  • the polyester polymer in melting form is extruded through a spinneret as shown in FIG. 5B at spinning temperature of 290° C.; quenched by cooling air at a rate of 1.0 m/s; and spun at a spinning rate of 700 m/min.
  • the filaments are drawn at a total elongation of 2.89 times followed by being thermosetting at 160° C. , cooling, wrinkling, oiling, drying, cutting, and packaging steps.
  • the down-like staples of 3d*51 mm whose cross section is a hollow stem with four cross-shaped lobes are thus obtained.
  • the polyester polymer in melting form is extruded through a spinneret as shown in FIG. 5A at spinning temperature of 290° C.; quenched by cooling air at a rate of 0.6 m/s; and winded at a spinning rate of 2500 m/min to produce 120/36 partially oriented yarns (POY).
  • the yarns are drawn at a total elongation of 1.6 times followed by thermosetting at 160° C. and winding steps.
  • the 75/36 down-like filament textured yarns whose cross section is a hollow stem with four T-shaped lobes are thus obtained.
  • the polyester polymer in melting form is extruded through a spinneret as shown in FIG. 5A at spinning temperature of 290° C.; quenched by cooling air at a rate of 0.6 m/s; and spun at a spinning rate of 4000 m/min.
  • the yarns are drawn at a total elongation of 2.0 times at the drawn temperature of 90° C. followed by thermosetting at 130° C. and winding steps.
  • the 75/36 down-like filament oriented yarns whose cross section is a hollow stem with four T-shaped lobes are thus obtained.
  • a sample of size 10 ⁇ 10 cm is placed in an environment of constant temperature and humidity (23° C., 65% RH) for 24 hours and then moved onto a scale.
  • a given amount of water (W1, unit: gram) is dripped from 1 centimeter above the fabric by using a volumetric pipet. After 5 minutes, the remaining amount of water (W2, unit: gram) in the fabric is recorded and the evaporation rate is calculated based on the following formula:
  • Sample 1 to 5 are double knit bird eye fabrics with a width of 36 inches*26 needles, which are respectively woven by staples having T-shaped lobes of the present invention, solid staples having 4T cross section, solid staples having cross cross section, solid round polyester fibers and hollow round polyester fibers (the above products are obtained from Shinkong Synthetic Fibers Corporation, in which the solid staples having 4T cross section have been issued Taiwan Patent no. 1374952).
  • sample 1 (the present 5 invention) 2 3 4 (comparative down-like (comparative (comparative (comparative example) staples example) example) example) hollow having solid staples solid staples solid round round T-shaped having 4T having cross polyester polyester lobes cross section cross section fiber fiber evaporation 76.8 73.5 69.2 50.1 49.6 rate (%)
  • the evaporation rate of the down-like fiber having T-shaped lobes provided by the present invention is around 76.8%, which is much better than 50.1% achieved by the solid round polyester fiber and 49.6% achieved by the hollow round polyester fiber.
  • the test result demonstrates that since fibers of the present invention possess lobe structures as ditches, the fabric woven by fibers of the present invention can keep larger spaces between fibers, and thus facilitate drainage.
  • the fibers of the present invention exhibit a fast drying effect compared with conventional hollow or solid round polyester fibers.
  • the evaporation rate of fibers of the present invention is also higher than solid fibers having other cross sections (i.e. samples 2 and 3). This shows that compared with conventional solid fibers having 4T cross section or cross cross section, fibers of the present invention possess excellent drainage effect, and thus fabrics woven thereby can achieve fast drying effect without a muggy feeling.
  • the warm-keeping test of fabrics woven by down-like fibers having T-shaped lobes of the present invention is described below.
  • the test is performed by AGEMA Thermal vision 900 thermal conductivity meter.
  • a 500W halogen lamp is used as a heat source to irradiate a sample for 10 minutes at a distance of 100 centimeters. The temperature of the sample is measured before and after exposure to the light.
  • Samples 1 to 4 represent double knit bird eye fabrics with a width of 36 inches*26 needles which are respectively woven by four different fibers, including down-like fibers having T-shaped lobes of the present invention, conventional solid fibers having 4T cross section, solid round polyester fibers and hollow round polyester fibers
  • FIG. 6 shows a bar graph based on the results of warm-keeping test.
  • the temperature of the fabric woven by fibers of the present invention is obviously raised after irradiation with a light source.
  • the increase of temperature is much greater than those of round polyester fibers (i.e. sample 3 and sample 4), and a better warm effect is also presented compared with conventional solid fibers having 4T cross section (i.e. sample 2).
  • the hollow stem of the down-like fiber provided by the present invention which is like a feather stem, not only reduces the weight of fiber but also provides effect of keeping warm.
  • the shaped lobes around the main stem provide several air rooms due to disconnection of adjacent head ends.
  • the ditch structures formed therefrom can further enhance the effects of heat conservation, and improve the effects of drainage and fast-drying.
  • the down-like fibers provided by the present invention can overcome disadvantages of bird feathers, i.e. decrease in the effect of keeping warm as a result of moisture absorption, and of conventional fibers having shaped lobes which has a drainage function but a poor effect of keeping warm. Meanwhile, since the weight of fiber of the present invention has been reduced, a down-like touch feeling is reserved.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Artificial Filaments (AREA)
US15/452,973 2016-07-27 2017-03-08 Down-like fiber Abandoned US20180030619A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW105123671 2016-07-27
TW105123671A TWI650451B (zh) 2016-07-27 2016-07-27 仿羽絨纖維、用於製造該纖維之噴絲板及方法

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US20180030619A1 true US20180030619A1 (en) 2018-02-01

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US15/452,973 Abandoned US20180030619A1 (en) 2016-07-27 2017-03-08 Down-like fiber

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US (1) US20180030619A1 (de)
EP (1) EP3276052A1 (de)
JP (1) JP2018016928A (de)
KR (1) KR20180012684A (de)
CN (1) CN107663666A (de)
TW (1) TWI650451B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210130982A1 (en) * 2018-07-04 2021-05-06 The Hong Kong Research Institute Of Textiles And Apparel Limited Application of profiled fiber in infrared radiation material and textiile
CN117468105A (zh) * 2023-12-27 2024-01-30 江苏德力化纤有限公司 一种高品质异形中空聚酯纤维及其制备方法

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JP7101027B2 (ja) * 2018-04-09 2022-07-14 帝人フロンティア株式会社 織物および衣料
CN109750369B (zh) * 2018-12-27 2020-05-22 江苏恒力化纤股份有限公司 仿羽毛纱聚酯纤维及其制备方法
CN111705369B (zh) * 2020-06-19 2022-03-11 江苏工程职业技术学院 一种轻质保暖“v”型立体结构仿羽绒纤维
CN111996609A (zh) * 2020-08-13 2020-11-27 新凤鸣集团股份有限公司 一种双层中空保暖聚酯纤维及其制备方法
CN112813512B (zh) * 2020-12-31 2022-02-01 江苏恒科新材料有限公司 一种双w形异形中空涤纶fdy纤维及其制备方法

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US20020155290A1 (en) * 2000-09-29 2002-10-24 Figuly Garret D. Stretchable polymeric fibers and articles produced therefrom
US20160102436A1 (en) * 2014-10-13 2016-04-14 Tarkett Inc. Tubular monofilament fiber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210130982A1 (en) * 2018-07-04 2021-05-06 The Hong Kong Research Institute Of Textiles And Apparel Limited Application of profiled fiber in infrared radiation material and textiile
CN117468105A (zh) * 2023-12-27 2024-01-30 江苏德力化纤有限公司 一种高品质异形中空聚酯纤维及其制备方法

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TW201804033A (zh) 2018-02-01
JP2018016928A (ja) 2018-02-01
KR20180012684A (ko) 2018-02-06
CN107663666A (zh) 2018-02-06
TWI650451B (zh) 2019-02-11
EP3276052A1 (de) 2018-01-31

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