WO2021135084A1 - 医用抗菌织物用纤维及其制备方法 - Google Patents

医用抗菌织物用纤维及其制备方法 Download PDF

Info

Publication number
WO2021135084A1
WO2021135084A1 PCT/CN2020/095716 CN2020095716W WO2021135084A1 WO 2021135084 A1 WO2021135084 A1 WO 2021135084A1 CN 2020095716 W CN2020095716 W CN 2020095716W WO 2021135084 A1 WO2021135084 A1 WO 2021135084A1
Authority
WO
WIPO (PCT)
Prior art keywords
antibacterial
spinneret
fiber
trilobal
medical
Prior art date
Application number
PCT/CN2020/095716
Other languages
English (en)
French (fr)
Inventor
尹立新
魏存宏
朱承乾
蒋丽波
Original Assignee
江苏恒力化纤股份有限公司
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 江苏恒力化纤股份有限公司 filed Critical 江苏恒力化纤股份有限公司
Priority to JP2022540453A priority Critical patent/JP7261361B2/ja
Priority to US17/789,517 priority patent/US20220356604A1/en
Publication of WO2021135084A1 publication Critical patent/WO2021135084A1/zh

Links

Images

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
    • D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; 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
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D01F1/103—Agents inhibiting growth of microorganisms
    • 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
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/02—Heat treatment
    • 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
    • D01D5/22—Formation of filaments, threads, or the like with a crimped or curled structure; with a special structure to simulate wool
    • 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
    • D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
    • D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters

Definitions

  • the invention belongs to the technical field of polyester fibers, and relates to a fiber for medical antibacterial fabrics and a preparation method thereof.
  • the present invention provides a fiber for medical antibacterial fabrics and a preparation method thereof, and aims to solve the problem of complicated processing technology of polyester fibers in medical fabrics in the prior art when crimping and stretching properties are realized.
  • a method for preparing fibers for medical antibacterial fabrics After extruding the antibacterial polyester melt from the trilobal spinneret on the spinneret, it is cooled by a circular blower, and FDY filaments are prepared according to the FDY process, and then subjected to relaxation heat treatment. Obtain fibers for medical antibacterial fabrics;
  • the length ratio of the three leaves of the same trilobe spinneret is 1.0:1.5 ⁇ 2.5:1.5 ⁇ 2.5, the width of the three leaves is the same, and the ratio of the length to the width of the shortest leaf is 2.5 ⁇ 3.5:1, two adjacent ones
  • the angle between the center lines of the leaves is 120°; the shapes and sizes of the three leaves of different trilobal spinnerets are the same;
  • the spinneret is provided with multiple trilobal spinneret holes, and each trilobal spinneret hole contains leaf I, leaf II, and leaf III. In the different trilobal spinneret holes, leaf I is all of the three leaves.
  • the shortest leaf; the length ratio of leaf I, leaf II, and leaf III in the same trilobal spinneret is 1.0:1.5 ⁇ 2.5:1.5 ⁇ 2.5, and the length of leaf I, leaf II, and leaf III in the same trilobal spinneret
  • the width is the same, the ratio of the length to the width of the leaf I in the same trilobal spinneret is 2.5 ⁇ 3.5:1; in the same trilobal spinneret, the angle between the center line of the leaf I and the leaf II is 120° , The angle between the centerline of leaf II and leaf III is 120°, the angle between the centerline of leaf I and leaf III is 120°; the shape and size of the three leaves with different trilobal spinnerets are the same; all three leaves The orientation of the leaf I of the circular spinneret is randomly distributed.
  • the intrinsic viscosity of the antibacterial polyester melt is 0.50-0.55 dL/g.
  • the antibacterial polyester is mainly composed of polyester and an antibacterial agent dispersed therein, the antibacterial agent is a silver-based antibacterial agent, and the content of silver ions is 100-300 ppm.
  • the parameters of the FDY process are: spinning temperature 270 ⁇ 280°C, cooling temperature 20 ⁇ 25°C, cooling wind speed 1.80 ⁇ 2.30m/s, one roll speed 1800 ⁇ 2000m/min, the temperature of one roll is 85 ⁇ 95°C, the speed of two rolls is 2700 ⁇ 2900m/min, the temperature of two rolls is 150 ⁇ 170°C, and the winding speed is 2640 ⁇ 2830m/min.
  • the temperature of the relaxation heat treatment is 90-120°C and the time is 20-30 minutes.
  • the present invention also provides a fiber for medical antibacterial fabric prepared by a method for preparing a fiber for medical antibacterial fabric as described in any one of the above, which has a three-dimensional crimped form and is composed of a plurality of antibacterial polyesters with a trilobal cross section. Monofilament composition.
  • the crimp shrinkage rate of the medical antibacterial fabric fiber is 26-29%, the crimp stability is 78-82%, and the shrinkage elongation rate is 55-62. %, the crimp elastic recovery rate is 70-75%.
  • the fiber for medical antibacterial fabric as described above has a breaking strength of 2.4 to 2.6 cN/dtex, a breaking elongation of 55.0 ⁇ 5.0%, and a monofilament fineness of 1.00 to 1.50 dtex.
  • the fiber for medical antibacterial fabric of the present invention is prepared according to the FDY process.
  • the antibacterial polyester melt is extruded from the three-lobe unequal-length three-lobe spinneret holes, and at the same time, circular blowing is used for cooling; due to the spinneret used
  • the trilobal shape in the hole is an asymmetrical structure.
  • the first leaf of the trilobal spinneret that faces the wind and the surface that contacts the cooling wind is the entire surface of the leaf, and the other two leaves are only in contact with the windward side; making the fiber spout out Later, the cooling speed of the melt at different positions on the cross section is inconsistent, which is mainly reflected in: during spinning, the cooling wind speed is 1.80 ⁇ 2.30m/s, the part close to the air outlet is cooled earlier and faster, and the part far away from the air outlet is slower cool down.
  • the melt of this lobe cools quickly, while the other parts in the three-lobe shape cool down slowly.
  • the crimping direction of the monofilament is not consistent. This is because all the trilobal spinnerets are distributed in concentric circles, and the shortest leaf of each trilobal spinneret is randomly distributed, so the stress is not The direction of symmetry is also different, and the direction of crimping is different. Therefore, monofilaments with inconsistent crimping directions will produce "disorder" in a bundle of filaments, making the bundle of filaments feel more fluffy and plump.
  • the method for preparing a fiber for medical antibacterial fabrics of the present invention uses a spinneret with an asymmetric trilobal spinneret to perform the FDY spinning process, so that the fiber has a cross-sectional surface during the cooling process.
  • the asymmetry of stress makes the fibers for medical antibacterial fabrics have three-dimensional self-crimping properties;
  • the fiber for medical antibacterial fabrics of the present invention has stable crimping shrinkage after relaxation heat treatment, and realizes that the single-component polyester fiber can realize crimping elasticity without a false twisting process.
  • Figure 1 is a schematic diagram of the shape of the trilobal spinneret of the present invention.
  • Fig. 2 is a schematic diagram of the distribution of the spinneret holes on the spinneret of the present invention.
  • the shape of the trilobal spinneret of the present invention and the schematic diagram of the distribution of the spinneret on the spinneret are shown in Figures 1 and 2.
  • the spinneret on the spinneret is trilobal, the same trilobal shape
  • the ratio of the length of the three leaves of the spinneret is 1.0:1.5 ⁇ 2.5:1.5 ⁇ 2.5, the width of the three leaves is the same, and the ratio of the length to the width of the shortest leaf is 2.5 ⁇ 3.5:1.
  • the included angle is 120°; the shapes and sizes of the three leaves of different trilobal spinnerets are the same; all the trilobal spinnerets are distributed in concentric circles, and the shortest leaf of each trilobal spinneret is randomly distributed .
  • Fig. 1 and Fig. 2 are for illustration only, and not as a limitation to the present invention.
  • a method for preparing fibers for medical antibacterial fabrics is as follows:
  • the antibacterial polyester melt (intrinsic viscosity is 5.4dL/g) is extruded from the trilobal spinneret on the spinneret and then cooled by a circular blower; the trilobe of the same trilobal spinneret
  • the length ratio is 1.0:1.7:1.5, the width of the three leaves is the same, the ratio of the length to the width of the shortest leaf is 3.3:1, and the angle between the center lines of the adjacent two leaves is 120°; different trilobal spinnerets
  • the shape and size of the three leaves are the same; the spinneret is provided with a circle of equidistant three-lobed spinneret holes, the number is 24, and the central axis of the shortest leaf of one of the three-lobed spinneret holes is the reference line , The central axis of the shortest leaf of all other trilobal spinnerets is at a certain angle with the reference line.
  • the inferior angles are 10°, 60°, 2°, 30°, 90°, 15°, 22°, 90°, 1°, 3°, 170°, 40°, 45°, 30°, 10°, 100°, 106°, 100°, 41°, 80°, 65°, 2° , 50°;
  • the antibacterial polyester is composed of polyester and an antibacterial agent dispersed in it.
  • the antibacterial agent is silver antibacterial agent RHA-02, and the content of silver ion is 100ppm;
  • FDY yarn is prepared according to the FDY process, and then subjected to a relaxation heat treatment at a temperature of 109°C and a time of 21 minutes to prepare fibers for medical antibacterial fabrics;
  • FDY process spinning temperature 278°C, cooling temperature 23°C, cooling wind speed 2.19m/s, one roll speed 1960m/min, one roll temperature 92°C, two roll speed 2800m/min, two roll temperature 163°C, Winding speed 2740m/min;
  • the prepared fiber for medical antibacterial fabric has a three-dimensional crimp shape and is composed of multiple antibacterial polyester monofilaments with a trilobal cross section; crimp shrinkage is 26%, crimp stability is 80%, and shrinkage elongation is 57%, the crimp elastic recovery rate is 70%; the breaking strength is 2.4 cN/dtex, the breaking elongation is 60%, and the monofilament fineness is 1.10 dtex.
  • a method for preparing fibers for medical antibacterial fabrics is as follows:
  • the antibacterial polyester melt (intrinsic viscosity is 5.5dL/g) is extruded from the trilobal spinneret on the spinneret and then cooled by a circular blower; the trilobe of the same trilobal spinneret
  • the length ratio is 1.0:1.5:1.9, the width of the three leaves is the same, the ratio of the length to the width of the shortest leaf is 2.8:1, and the angle between the center lines of the adjacent two leaves is 120°; different three-lobe spinnerets
  • the shape and size of the three leaves are the same; the spinneret is provided with a circle of equidistant three-lobed spinneret holes, the number is 24, and the central axis of the shortest leaf of one of the three-lobed spinneret holes is the reference line , The central axis of the shortest leaf of all other trilobal spinnerets is at a certain angle with the reference line.
  • the inferior angles are 28°, 162°, 64°, 3°, 6°, 105°, 22°, 90°, 1°, 3°, 170°, 40°, 45°, 30°, 10°, 100°, 106°, 100°, 41°, 80°, 65°, 2° , 50°;
  • the antibacterial polyester is composed of polyester and an antibacterial agent dispersed in it.
  • the antibacterial agent is silver antibacterial agent RHA-02, and the content of silver ion is 300ppm;
  • FDY yarn is prepared according to the FDY process, and then subjected to a relaxation heat treatment at a temperature of 109°C and a time of 20 minutes to prepare fibers for medical antibacterial fabrics;
  • FDY process spinning temperature 278°C, cooling temperature 23°C, cooling wind speed 2.19m/s, one roll speed 1970m/min, one roll temperature 92°C, two roll speed 2820m/min, two roll temperature 168°C, Winding speed 2760m/min;
  • the prepared fiber for medical antibacterial fabric has a three-dimensional crimp shape and is composed of multiple antibacterial polyester monofilaments with a trilobal cross section; crimp shrinkage is 26%, crimp stability is 80%, and shrinkage elongation is 58%, the crimp elastic recovery rate is 70%; the breaking strength is 2.45 cN/dtex, the breaking elongation is 58%, and the monofilament fineness is 1.20 dtex.
  • a method for preparing fibers for medical antibacterial fabrics is as follows:
  • the antibacterial polyester melt (intrinsic viscosity is 5.4dL/g) is extruded from the trilobal spinneret on the spinneret and then cooled by a circular blower; the trilobe of the same trilobal spinneret
  • the length ratio is 1.0:2.0:2.5, the width of the three leaves is the same, the ratio of the length to the width of the shortest leaf is 3.5:1, and the angle between the center lines of the adjacent two leaves is 120°; different trilobal spinnerets
  • the shape and size of the three leaves are the same; the spinneret is provided with a circle of equally spaced three-lobed spinneret holes, the number is 30, and the central axis of the shortest leaf of one of the three-lobed spinneret holes is the reference line , The central axis of the shortest leaf of all other trilobal spinnerets is at a certain angle with the reference line.
  • the inferior angles are 10°, 60°, 2°, 30°, 90°, 15°, 22°, 90°, 1°, 3°, 170°, 40°, 45°, 30°, 10°, 100°, 106°, 100°, 41°, 80°, 65°, 2° , 50°, 28°, 162°, 64°, 3°, 6°, 105°;
  • the antibacterial polyester is composed of polyester and an antibacterial agent dispersed in it.
  • the antibacterial agent is silver-based antibacterial agent RHA-02, and the content of silver ions is 290ppm;
  • FDY yarn is prepared according to the FDY process, and then subjected to a relaxation heat treatment at a temperature of 104°C and a time of 23 minutes to prepare the fiber for medical antibacterial fabrics;
  • FDY process spinning temperature 277°C, cooling temperature 23°C, cooling wind speed 2.12m/s, one roll speed 1930m/min, one roll temperature 91°C, two roll speed 2780m/min, two roll temperature 161°C, Winding speed 2720m/min;
  • the prepared fiber for medical antibacterial fabrics has a three-dimensional crimp shape and is composed of multiple antibacterial polyester monofilaments with a trilobal cross section; crimp shrinkage is 27%, crimp stability is 78%, and shrinkage elongation is 62%, the crimp elastic recovery rate is 71%; the breaking strength is 2.48 cN/dtex, the breaking elongation is 56%, and the monofilament fineness is 1.28 dtex.
  • a method for preparing fibers for medical antibacterial fabrics is as follows:
  • the antibacterial polyester melt (intrinsic viscosity is 5.4dL/g) is extruded from the trilobal spinneret on the spinneret and then cooled by a circular blower; the trilobe of the same trilobal spinneret
  • the length ratio is 1.0:1.6:2.0, the width of the three leaves is the same, the ratio of the length to the width of the shortest leaf is 2.8:1, and the angle between the center lines of the adjacent two leaves is 120°; different trilobal spinnerets
  • the shape and size of the three leaves are the same; the spinneret is provided with a circle of equidistant three-lobed spinneret holes, the number is 36, and the central axis of the shortest leaf of one of the three-lobed spinneret holes is the reference line , The central axis of the shortest leaf of all other trilobal spinnerets is at a certain angle with the reference line.
  • the inferior angles are 10°, 60°, 2°, 30°, 90°, 15°, 28°, 162°, 64°, 3°, 6°, 105°, 121°, 93°, 161°, 123°, 75°, 129°, 22°, 90°, 1°, 3° , 170°, 40°, 45°, 30°, 10°, 100°, 106°, 100°, 41°, 80°, 65°, 2°, 50°;
  • the antibacterial polyester is composed of polyester and an antibacterial agent dispersed in it.
  • the antibacterial agent is silver-based antibacterial agent RHA-02, and the content of silver ions is 295ppm;
  • FDY yarn is prepared according to the FDY process, and then subjected to a relaxation heat treatment at a temperature of 98°C and a time of 24 minutes to prepare fibers for medical antibacterial fabrics;
  • the parameters of the FDY process are: spinning temperature of 276°C, cooling temperature of 21°C, cooling wind speed of 2.04m/s, speed of one roll of 1930m/min, temperature of one roll of 90°C, speed of two rolls of 2780m/min, temperature of two rolls of 159°C, Winding speed 2720m/min;
  • the prepared medical antibacterial fabric fiber has a three-dimensional crimp shape and is composed of multiple antibacterial polyester monofilaments with a trilobal cross-section; the crimp shrinkage rate is 29%, the crimp stability is 82%, and the shrinkage elongation rate is 29%. 59%, the crimp elastic recovery rate is 75%; the breaking strength is 2.5 cN/dtex, the breaking elongation is 55%, and the monofilament fineness is 1.36 dtex.
  • a method for preparing fibers for medical antibacterial fabrics is as follows:
  • the antibacterial polyester melt (intrinsic viscosity is 5.2dL/g) is extruded from the trilobal spinneret on the spinneret and then cooled by a circular blower; the trilobe of the same trilobal spinneret
  • the length ratio is 1.0:2.5:2.4, the width of the three leaves is the same, the ratio of the length to the width of the shortest leaf is 2.7:1, and the angle between the center lines of the adjacent two leaves is 120°; different three-lobe spinnerets
  • the shape and size of the three leaves are the same; the spinneret is provided with a circle of equidistant three-lobed spinneret holes, the number is 24, and the central axis of the shortest leaf of one of the three-lobed spinneret holes is the reference line , The central axis of the shortest leaf of all other trilobal spinnerets is at a certain angle with the reference line.
  • the inferior angles are 152°, 96°, 54°, 100°, 175°, 75°, 22°, 90°, 1°, 3°, 170°, 40°, 45°, 30°, 10°, 100°, 106°, 100°, 41°, 80°, 65°, 2° , 50°;
  • the antibacterial polyester is composed of polyester and an antibacterial agent dispersed in it.
  • the antibacterial agent is silver-based antibacterial agent RHA-02, and the content of silver ions is 121ppm;
  • FDY yarn is prepared according to the FDY process, and then subjected to a relaxation heat treatment at a temperature of 97°C and a time of 24 minutes to prepare the fiber for medical antibacterial fabrics;
  • the parameters of FDY process are: spinning temperature 273°C, cooling temperature 21°C, cooling wind speed 2.01m/s, one roll speed 1890m/min, one roll temperature 89°C, two roll speed 2770m/min, two roll temperature 158°C, Winding speed 2710m/min;
  • the prepared fiber for medical antibacterial fabric has a three-dimensional crimp shape and is composed of multiple antibacterial polyester monofilaments with a trilobal cross section; crimp shrinkage is 29%, crimp stability is 78%, and shrinkage elongation is 55%, the crimp elastic recovery rate is 74%; the breaking strength is 2.55 cN/dtex, the breaking elongation is 54%, and the single filament fineness is 1.44 dtex.
  • a method for preparing fibers for medical antibacterial fabrics is as follows:
  • the antibacterial polyester melt (intrinsic viscosity is 5dL/g) is extruded from the trilobal spinneret hole on the spinneret and then cooled by a circular blower; the length of the trilobe of the same trilobal spinneret hole The ratio is 1.0:2.2:2.5, the width of the three leaves is the same, the ratio of the length to the width of the shortest leaf is 3:1, and the angle between the center lines of the adjacent two leaves is 120°; The shape and size of the three leaves are the same; the spinneret is provided with a circle of equidistant three-lobed spinneret holes, the number is 24, and the central axis of the shortest leaf of one of the three-lobed spinneret holes is taken as the reference line.
  • the central axis of the shortest leaf of all other trilobal spinnerets is at a certain angle with the reference line.
  • the inferior angles are 166°, 40°, 23°, 138°, 112°, 55. °, 180°, 53°, 174°, 142°, 131°, 87°, 49°, 90°, 65°, 5°, 74°, 161°, 30°, 158°, 45°, 109°, 23°, 47°;
  • the antibacterial polyester is composed of polyester and an antibacterial agent dispersed in it.
  • the antibacterial agent is silver-based antibacterial agent RHA-02, and the content of silver ions is 193ppm;
  • FDY yarn is prepared according to the FDY process, and then subjected to a relaxation heat treatment at a temperature of 97°C and a time of 27 minutes to prepare the fiber for medical antibacterial fabrics;
  • the parameters of the FDY process are: spinning temperature 271°C, cooling temperature 20°C, cooling wind speed 2m/s, one roll speed 1880m/min, one roll temperature 88°C, two roll speed 2770m/min, two roll temperature 153°C, roll Winding speed 2710m/min;
  • the prepared fiber for medical antibacterial fabric has a three-dimensional crimp shape and is composed of multiple antibacterial polyester monofilaments with a trilobal cross section; crimp shrinkage is 29%, crimp stability is 78%, and shrinkage elongation is 58%, the crimp elastic recovery rate is 73%; the breaking strength is 2.56 cN/dtex, the breaking elongation is 53%, and the monofilament fineness is 1.50 dtex.
  • a method for preparing fibers for medical antibacterial fabrics is as follows:
  • the antibacterial polyester melt (intrinsic viscosity is 5dL/g) is extruded from the trilobal spinneret hole on the spinneret and then cooled by a circular blower; the length of the trilobe of the same trilobal spinneret hole The ratio is 1.0:1.5:2.0, the width of the three leaves is the same, the ratio of the length to the width of the shortest leaf is 2.9:1, and the angle between the center lines of the adjacent two leaves is 120°; The shape and size of the three leaves are the same; the spinneret is provided with a circle of equally spaced three-lobed spinneret holes, the number is 48, and the central axis of the shortest leaf of one of the three-lobed spinneret holes is used as the reference line.
  • the central axis of the shortest leaf of all other trilobal spinnerets is at a certain angle with the reference line.
  • the inferior angles are 10°, 60°, 2°, 30°, 90°, 15 °, 22°, 90°, 1°, 3°, 170°, 40°, 45°, 30°, 10°, 100°, 106°, 100°, 41°, 80°, 65°, 2°, 50°, 166°, 40°, 23°, 138°, 112°, 55°, 180°, 53°, 174°, 142°, 131°, 87°, 49°, 90°, 65°, 5° , 74°, 161°, 30°, 158°, 45°, 109°, 23°, 47°;
  • the antibacterial polyester is composed of polyester and an antibacterial agent dispersed in it.
  • the antibacterial agent is silver-based antibacterial agent RHA-02, and the content of silver ions is 201ppm;
  • FDY yarn is prepared according to the FDY process, and then subjected to a relaxation heat treatment at a temperature of 90°C and a time of 30 minutes to prepare fibers for medical antibacterial fabrics;
  • the parameters of FDY process are: spinning temperature 270°C, cooling temperature 20°C, cooling wind speed 1.8m/s, one roll speed 1800m/min, one roll temperature 85°C, two roll speed 2700m/min, two roll temperature 150°C, Winding speed 2640m/min;
  • the prepared fiber for medical antibacterial fabric has a three-dimensional crimp shape and is composed of multiple antibacterial polyester monofilaments with a trilobal cross-section; the crimp shrinkage rate is 28%, the crimp stability is 82%, and the shrinkage elongation rate is 28%. 61%, the crimp elastic recovery rate is 72%; the breaking strength is 2.59 cN/dtex, the breaking elongation is 52%, and the monofilament fineness is 1.00 dtex.
  • a method for preparing fibers for medical antibacterial fabrics is as follows:
  • the antibacterial polyester melt (intrinsic viscosity is 5.5dL/g) is extruded from the trilobal spinneret on the spinneret and then cooled by a circular blower; the trilobe of the same trilobal spinneret
  • the length ratio is 1.0:2.0:2.5, the width of the three leaves is the same, the ratio of the length to the width of the shortest leaf is 2.5:1, and the angle between the center lines of the adjacent two leaves is 120°; different three-lobe spinnerets
  • the shape and size of the three leaves are the same; the spinneret is provided with a circle of equidistant three-lobed spinneret holes, the number is 24, and the central axis of the shortest leaf of one of the three-lobed spinneret holes is the reference line , The central axis of the shortest leaf of all other trilobal spinnerets is at a certain angle with the reference line.
  • the inferior angles are 10°, 60°, 2°, 30°, 90°, 15°, 22°, 90°, 1°, 3°, 170°, 40°, 45°, 30°, 10°, 100°, 106°, 100°, 41°, 80°, 65°, 2° , 50°;
  • the antibacterial polyester is composed of polyester and an antibacterial agent dispersed in it.
  • the antibacterial agent is silver-based antibacterial agent RHA-02, and the content of silver ions is 202ppm;
  • FDY yarn is prepared according to the FDY process, and then subjected to a relaxation heat treatment at a temperature of 120°C and a time of 20 minutes to prepare fibers for medical antibacterial fabrics;
  • the parameters of FDY process are: spinning temperature 280°C, cooling temperature 25°C, cooling wind speed 2.3m/s, one roll speed 2000m/min, one roll temperature 95°C, two roll speed 2900m/min, two roll temperature 170°C, Winding speed 2830m/min;
  • the prepared fiber for medical antibacterial fabric has a three-dimensional crimp shape and is composed of multiple antibacterial polyester monofilaments with a trilobal cross-section; the crimp shrinkage rate is 28%, the crimp stability is 82%, and the shrinkage elongation rate is 28%. 58%, the crimp elastic recovery rate is 72%; the breaking strength is 2.6 cN/dtex, the breaking elongation is 50%, and the monofilament fineness is 1.10 dtex.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Artificial Filaments (AREA)
  • Woven Fabrics (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Multicomponent Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

一种医用抗菌织物用纤维的制备方法，将抗菌聚酯熔体从喷丝板上的三叶形喷丝孔挤出后采用环吹风冷却，依照FDY工艺制得FDY丝，再经松弛热处理制得医用抗菌织物用纤维；不同三叶形喷丝孔的三叶的形状和尺寸相同；所有的三叶形喷丝孔呈同心圆分布，且各三叶形喷丝孔的最短叶的指向随机分布。

Description

医用抗菌织物用纤维及其制备方法 技术领域
本发明属于聚酯纤维技术领域，涉及一种医用抗菌织物用纤维及其制备方法。
背景技术
随着医疗卫生的加强，越来越多的医用纺织品应运而生。医用纺织品与服装用纺织品的要求有所不同，主要体现在抗菌性、实用性。服装用纺织品一般都采用多种原料，来实现消费者对穿着舒适性的需求，但是大多数医用纺织品是一次性的丢弃物，选择尽可能少的原料可以减少加工过程从而降低成本。聚酯纤维由于具有多种改良和变形，被广泛应用到医用纺织品中，但是聚酯纤维中的弹性一般来源于假捻变形工艺或者采用双组份纺丝的工艺，这两个过程都会很大地增加成本。
因此，开发一种工艺简单且具有卷曲收缩性的医用织物用纤维具有十分重要的意义。
发明内容
本发明提供一种医用抗菌织物用纤维及其制备方法，目的是解决现有技术中的医用织物中聚酯纤维在实现卷曲伸缩性时，其加工工艺复杂的问题。
为达到上述目的，本发明采用的方案如下：
一种医用抗菌织物用纤维的制备方法，将抗菌聚酯熔体从喷丝板上的三叶形喷丝孔挤出后采用环吹风冷却，依照FDY工艺制得FDY丝，再经松弛热处理制得医用抗菌织物用纤维；
同一三叶形喷丝孔的三叶的长度之比为1.0:1.5～2.5:1.5～2.5，三叶的宽度相同，最短叶的长度与宽度之比为2.5～3.5:1，相邻两叶的中心线的夹角为120°；不同三叶形喷丝孔的三叶的形状和尺寸相同；
所有的三叶形喷丝孔呈同心圆分布，且各三叶形喷丝孔的最短叶的指向随机分布；
即喷丝板上设有多个三叶形喷丝孔，各三叶形喷丝孔都含叶I、叶II、叶III，不同的三叶形喷丝孔中叶I都为三叶中的最短叶；同一三叶形喷丝孔中叶I、叶II、叶III的长度之比为1.0:1.5～2.5:1.5～2.5，同一三叶形喷丝孔中叶I、叶II、叶III的宽度相同，同一三叶形喷丝孔中叶I的长度与宽度之比为2.5～3.5:1；同一三叶形喷丝孔中，叶I与叶II中心线的夹角为120°，叶II与叶III的中心线的夹角为120°，叶I与叶III的中心线的夹角为120°；不同三叶形喷丝孔的三叶的形状和尺寸相同；所有三叶形喷丝孔的叶I的指向随机分布。
作为优选的技术方案：
如上所述的一种医用抗菌织物用纤维的制备方法，抗菌聚酯熔体的特性粘度为0.50～0.55dL/g。
如上所述的一种医用抗菌织物用纤维的制备方法，抗菌聚酯主要由聚酯以及分散在其中的抗菌剂组成，抗菌剂为银系抗菌剂，银离子的含量为100～300ppm。
如上所述的一种医用抗菌织物用纤维的制备方法，FDY工艺的参数为：纺丝温度270～280℃，冷却温度20～25℃，冷却风速1.80～2.30m/s，一辊速度1800～2000m/min，一辊温度85～95℃，二辊速度2700～2900m/min，二辊温度150～170℃，卷绕速度2640～2830m/min。
如上所述的一种医用抗菌织物用纤维的制备方法，松弛热处理的温度为90～120℃，时间为20～30min。
本发明还提供采用如上任一项所述的一种医用抗菌织物用纤维的制备方法制得的医用抗菌织物用纤维，具有三维卷曲形态，且由多根横截面呈三叶形的抗菌聚酯单丝组成。
作为优选的技术方案：
如上所述的医用抗菌织物用纤维，按GB/T6506-2001测得医用抗菌织物用纤维的卷曲收缩率为26～29％，卷曲稳定度为78～82％，紧缩伸长率为55～62％，卷缩弹性回复率为70～75％。
如上所述的医用抗菌织物用纤维，医用抗菌织物用纤维的断裂强度2.4～2.6cN/dtex，断裂伸长率为55.0±5.0％，单丝纤度为1.00～1.50dtex。
本发明的原理如下：
本发明的医用抗菌织物用纤维是按照FDY工艺制得，是将抗菌聚酯熔体从三叶不等长的三叶形喷丝孔挤出，同时采用环吹风冷却；由于所采用的喷丝孔中的三叶形为不对称结构，三叶形喷丝孔最先迎风的一叶且与冷却风接触的表面为该叶的全部表面，其他两叶只是迎风面接触；使得纤维自喷出后，横截面上不同位置的熔体的冷却速度不一致，主要体现在：纺丝时，冷却风速1.80～2.30m/s，靠近吹风口的部分更早更快冷却，远离吹风口的部分更慢冷却。当三叶形喷丝孔中的三叶形中的一叶正对着冷却风时，该叶的熔体冷却得快，而三叶形中的其它部分冷却得慢。在牵伸的张力作用下，三叶形中的其它部分更容易被牵伸而变细，且其应力更集中；这种横截面上应力和粗细均不对称的纤维在热处理或拉伸过程中会呈现三维卷曲性能，且卷曲好，纤维弹性回复率大。
而且，在一束丝中，单丝的卷曲方向不一致，这是因为所有的三叶形喷丝孔呈同心圆分布，且各三叶形喷丝孔的最短叶的指向随机分布，则应力不对称的方向也不同，卷曲的方向进而不同，因此，卷曲方向不一致的单丝在一束丝中会产生“乱序”，使得该束丝的手感更加蓬松、丰满。
有益效果：
(1)本发明的一种医用抗菌织物用纤维的制备方法，采用了不对称的三叶形喷丝孔的喷丝板进行FDY的纺丝工艺，使得纤维在冷却过程中产生横截面上的应力不对称，使得医用抗菌织物用纤维具有了三维自卷曲性能；
(2)本发明的一种医用抗菌织物用纤维，在松弛热处理后，具有稳定的卷曲收缩性，实现了单组份聚酯纤维不经过假捻变形工艺即可实现卷曲弹性。
附图说明
图1为本发明的三叶形喷丝孔的形状示意图；
图2为本发明的喷丝孔在喷丝板上的分布示意图。
具体实施方式
下面结合具体实施方式，进一步阐述本发明。应理解，这些实施例仅用于说明本发明而不用于限制本发明的范围。此外应理解，在阅读了本发明讲授的内容之后，本领域技术人员可以对本发明作各种改动或修改，这些等价形式同样落于本申请所附权利要求书所限定的范围。
本发明的三叶形喷丝孔的形状及喷丝孔在喷丝板上的分布示意图如图1和图2所示，喷丝板上的喷丝孔为三叶形，同一三叶形喷丝孔的三叶的长度之比为1.0:1.5～2.5:1.5～2.5，三叶的宽度相同，最短叶的长度与宽度之比为2.5～3.5:1，相邻两叶的中心线的夹角为120°；不同三叶形喷丝孔的三叶的形状和尺寸相同；所有的三叶形喷丝孔呈同心圆分布，且各三叶形喷丝孔的最短叶的指向随机分布。
图1和图2仅为示意，不作为对本发明的限制。
实施例1
一种医用抗菌织物用纤维的制备方法，其过程如下：
(1)将抗菌聚酯熔体(特性粘度为5.4dL/g)从喷丝板上的三叶形喷丝孔挤出后采用环吹风冷却；同一三叶形喷丝孔的三叶的长度之比为1.0:1.7:1.5，三叶的宽度相同，最短叶的长度与宽度之比为3.3:1，相邻两叶的中心线的夹角为120°；不同三叶形喷丝孔的三叶的形状和尺寸相同；喷丝板上共设有一圈等距分布的三叶形喷丝孔，数量为24个，以其中一个三叶形喷丝孔最短叶的中心轴线为基准线，其他所有三叶形喷丝孔最短叶的中心轴线都与基准线呈一定的夹角，沿顺时针方向，劣角夹角依次为10°、60°、2°、30°、90°、15°、22°、90°、1°、3°、170°、40°、45°、30°、10°、100°、106°、100°、41°、80°、65°、2°、50°；
抗菌聚酯由聚酯以及分散在其中的抗菌剂组成，抗菌剂为银系抗菌剂RHA-02，银离子的含量为100ppm；
(2)依照FDY工艺制得FDY丝，再经温度为109℃，时间为21min的松弛热处理制得医用抗菌织物用纤维；
FDY工艺的参数为：纺丝温度278℃，冷却温度23℃，冷却风速2.19m/s，一辊速度1960m/min，一辊温度92℃，二辊速度2800m/min，二辊温度163℃，卷绕速度2740m/min；
制得的医用抗菌织物用纤维具有三维卷曲形态，且由多根横截面呈三叶形的抗菌聚酯单丝组成；卷曲收缩率为26％，卷曲稳定度为80％，紧缩伸长率为57％，卷缩弹性回复率为70％；断裂强度为2.4cN/dtex，断裂伸长率为60％，单丝纤度为1.10dtex。
实施例2
一种医用抗菌织物用纤维的制备方法，其过程如下：
(1)将抗菌聚酯熔体(特性粘度为5.5dL/g)从喷丝板上的三叶形喷丝孔挤出后采用环吹风冷却；同一三叶形喷丝孔的三叶的长度之比为1.0:1.5:1.9，三叶的宽度相同，最短叶的长度与宽度之比为2.8:1，相邻两叶的中心线的夹角为120°；不同三叶形喷丝孔的三叶的形状和尺寸相同；喷丝板上共设有一圈等距分布的三叶形喷丝孔，数量为24个，以其中一个三叶形喷丝孔最短叶的中心轴线为基准线，其他所有三叶形喷丝孔最短叶的中心轴线都与基准线呈一定的夹角，沿顺时针方向，劣角夹角依次为28°、162°、64°、3°、6°、105°、22°、90°、1°、3°、170°、40°、45°、30°、10°、100°、106°、100°、41°、80°、65°、2°、50°；
抗菌聚酯由聚酯以及分散在其中的抗菌剂组成，抗菌剂为银系抗菌剂RHA-02，银离子的含量为300ppm；
(2)依照FDY工艺制得FDY丝，再经温度为109℃，时间为20min的松弛热处理制得医用抗菌织物用纤维；
FDY工艺的参数为：纺丝温度278℃，冷却温度23℃，冷却风速2.19m/s，一辊速度1970m/min，一辊温度92℃，二辊速度2820m/min，二辊温度168℃，卷绕速度2760m/min；
制得的医用抗菌织物用纤维具有三维卷曲形态，且由多根横截面呈三叶形的抗菌聚酯单丝组成；卷曲收缩率为26％，卷曲稳定度为80％，紧缩伸长率为58％，卷缩弹性回复率为70％；断裂强度为2.45cN/dtex，断裂伸长率为58％，单丝纤度为1.20dtex。
实施例3
一种医用抗菌织物用纤维的制备方法，其过程如下：
(1)将抗菌聚酯熔体(特性粘度为5.4dL/g)从喷丝板上的三叶形喷丝孔挤出后采用环吹风冷却；同一三叶形喷丝孔的三叶的长度之比为1.0:2.0:2.5，三叶的宽度相同，最短叶的长度与宽度之比为3.5:1，相邻两叶的中心线的夹角为120°；不同三叶形喷丝孔的三叶的形状和尺寸相同；喷丝板上共设有一圈等距分布的三叶形喷丝孔，数量为30个，以其中一个三叶形喷丝孔最短叶的中心轴线为基准线，其他所有三叶形喷丝孔最短叶的中心轴线都与基准线呈一定的夹角，沿顺时针方向，劣角夹角依次为10°、60°、2°、30°、90°、15°、22°、90°、1°、3°、170°、40°、45°、30°、10°、100°、106°、100°、41°、80°、65°、2°、50°、28°、162°、64°、3°、6°、105°；
抗菌聚酯由聚酯以及分散在其中的抗菌剂组成，抗菌剂为银系抗菌剂RHA-02，银离子的含量为290ppm；
(2)依照FDY工艺制得FDY丝，再经温度为104℃，时间为23min的松弛热处理制得医用抗菌织 物用纤维；
FDY工艺的参数为：纺丝温度277℃，冷却温度23℃，冷却风速2.12m/s，一辊速度1930m/min，一辊温度91℃，二辊速度2780m/min，二辊温度161℃，卷绕速度2720m/min；
制得的医用抗菌织物用纤维具有三维卷曲形态，且由多根横截面呈三叶形的抗菌聚酯单丝组成；卷曲收缩率为27％，卷曲稳定度为78％，紧缩伸长率为62％，卷缩弹性回复率为71％；断裂强度为2.48cN/dtex，断裂伸长率为56％，单丝纤度为1.28dtex。
实施例4
一种医用抗菌织物用纤维的制备方法，其过程如下：
(1)将抗菌聚酯熔体(特性粘度为5.4dL/g)从喷丝板上的三叶形喷丝孔挤出后采用环吹风冷却；同一三叶形喷丝孔的三叶的长度之比为1.0:1.6:2.0，三叶的宽度相同，最短叶的长度与宽度之比为2.8:1，相邻两叶的中心线的夹角为120°；不同三叶形喷丝孔的三叶的形状和尺寸相同；喷丝板上共设有一圈等距分布的三叶形喷丝孔，数量为36个，以其中一个三叶形喷丝孔最短叶的中心轴线为基准线，其他所有三叶形喷丝孔最短叶的中心轴线都与基准线呈一定的夹角，沿顺时针方向，劣角夹角依次为10°、60°、2°、30°、90°、15°、28°、162°、64°、3°、6°、105°、121°、93°、161°、123°、75°、129°、22°、90°、1°、3°、170°、40°、45°、30°、10°、100°、106°、100°、41°、80°、65°、2°、50°；
抗菌聚酯由聚酯以及分散在其中的抗菌剂组成，抗菌剂为银系抗菌剂RHA-02，银离子的含量为295ppm；
(2)依照FDY工艺制得FDY丝，再经温度为98℃，时间为24min的松弛热处理制得医用抗菌织物用纤维；
FDY工艺的参数为：纺丝温度276℃，冷却温度21℃，冷却风速2.04m/s，一辊速度1930m/min，一辊温度90℃，二辊速度2780m/min，二辊温度159℃，卷绕速度2720m/min；
制得的医用抗菌织物用纤维具有三维卷曲形态，且由多根横截面呈三叶形的抗菌聚酯单丝组成；卷曲收缩率为29％，卷曲稳定度为82％，紧缩伸长率为59％，卷缩弹性回复率为75％；断裂强度为2.5cN/dtex，断裂伸长率为55％，单丝纤度为1.36dtex。
实施例5
一种医用抗菌织物用纤维的制备方法，其过程如下：
(1)将抗菌聚酯熔体(特性粘度为5.2dL/g)从喷丝板上的三叶形喷丝孔挤出后采用环吹风冷却；同一三叶形喷丝孔的三叶的长度之比为1.0:2.5:2.4，三叶的宽度相同，最短叶的长度与宽度之比为2.7:1，相邻两叶的中心线的夹角为120°；不同三叶形喷丝孔的三叶的形状和尺寸相同；喷丝板上共设有一圈等 距分布的三叶形喷丝孔，数量为24个，以其中一个三叶形喷丝孔最短叶的中心轴线为基准线，其他所有三叶形喷丝孔最短叶的中心轴线都与基准线呈一定的夹角，沿顺时针方向，劣角夹角依次为152°、96°、54°、100°、175°、75°、22°、90°、1°、3°、170°、40°、45°、30°、10°、100°、106°、100°、41°、80°、65°、2°、50°；
抗菌聚酯由聚酯以及分散在其中的抗菌剂组成，抗菌剂为银系抗菌剂RHA-02，银离子的含量为121ppm；
(2)依照FDY工艺制得FDY丝，再经温度为97℃，时间为24min的松弛热处理制得医用抗菌织物用纤维；
FDY工艺的参数为：纺丝温度273℃，冷却温度21℃，冷却风速2.01m/s，一辊速度1890m/min，一辊温度89℃，二辊速度2770m/min，二辊温度158℃，卷绕速度2710m/min；
制得的医用抗菌织物用纤维具有三维卷曲形态，且由多根横截面呈三叶形的抗菌聚酯单丝组成；卷曲收缩率为29％，卷曲稳定度为78％，紧缩伸长率为55％，卷缩弹性回复率为74％；断裂强度为2.55cN/dtex，断裂伸长率为54％，单丝纤度为1.44dtex。
实施例6
一种医用抗菌织物用纤维的制备方法，其过程如下：
(1)将抗菌聚酯熔体(特性粘度为5dL/g)从喷丝板上的三叶形喷丝孔挤出后采用环吹风冷却；同一三叶形喷丝孔的三叶的长度之比为1.0:2.2:2.5，三叶的宽度相同，最短叶的长度与宽度之比为3:1，相邻两叶的中心线的夹角为120°；不同三叶形喷丝孔的三叶的形状和尺寸相同；喷丝板上共设有一圈等距分布的三叶形喷丝孔，数量为24个，以其中一个三叶形喷丝孔最短叶的中心轴线为基准线，其他所有三叶形喷丝孔最短叶的中心轴线都与基准线呈一定的夹角，沿顺时针方向，劣角夹角依次为166°、40°、23°、138°、112°、55°、180°、53°、174°、142°、131°、87°、49°、90°、65°、5°、74°、161°、30°、158°、45°、109°、23°、47°；
抗菌聚酯由聚酯以及分散在其中的抗菌剂组成，抗菌剂为银系抗菌剂RHA-02，银离子的含量为193ppm；
(2)依照FDY工艺制得FDY丝，再经温度为97℃，时间为27min的松弛热处理制得医用抗菌织物用纤维；
FDY工艺的参数为：纺丝温度271℃，冷却温度20℃，冷却风速2m/s，一辊速度1880m/min，一辊温度88℃，二辊速度2770m/min，二辊温度153℃，卷绕速度2710m/min；
制得的医用抗菌织物用纤维具有三维卷曲形态，且由多根横截面呈三叶形的抗菌聚酯单丝组成；卷曲收缩率为29％，卷曲稳定度为78％，紧缩伸长率为58％，卷缩弹性回复率为73％；断裂强度为 2.56cN/dtex，断裂伸长率为53％，单丝纤度为1.50dtex。
实施例7
一种医用抗菌织物用纤维的制备方法，其过程如下：
(1)将抗菌聚酯熔体(特性粘度为5dL/g)从喷丝板上的三叶形喷丝孔挤出后采用环吹风冷却；同一三叶形喷丝孔的三叶的长度之比为1.0:1.5:2.0，三叶的宽度相同，最短叶的长度与宽度之比为2.9:1，相邻两叶的中心线的夹角为120°；不同三叶形喷丝孔的三叶的形状和尺寸相同；喷丝板上共设有一圈等距分布的三叶形喷丝孔，数量为48个，以其中一个三叶形喷丝孔最短叶的中心轴线为基准线，其他所有三叶形喷丝孔最短叶的中心轴线都与基准线呈一定的夹角，沿顺时针方向，劣角夹角依次为10°、60°、2°、30°、90°、15°、22°、90°、1°、3°、170°、40°、45°、30°、10°、100°、106°、100°、41°、80°、65°、2°、50°、166°、40°、23°、138°、112°、55°、180°、53°、174°、142°、131°、87°、49°、90°、65°、5°、74°、161°、30°、158°、45°、109°、23°、47°；
抗菌聚酯由聚酯以及分散在其中的抗菌剂组成，抗菌剂为银系抗菌剂RHA-02，银离子的含量为201ppm；
(2)依照FDY工艺制得FDY丝，再经温度为90℃，时间为30min的松弛热处理制得医用抗菌织物用纤维；
FDY工艺的参数为：纺丝温度270℃，冷却温度20℃，冷却风速1.8m/s，一辊速度1800m/min，一辊温度85℃，二辊速度2700m/min，二辊温度150℃，卷绕速度2640m/min；
制得的医用抗菌织物用纤维具有三维卷曲形态，且由多根横截面呈三叶形的抗菌聚酯单丝组成；卷曲收缩率为28％，卷曲稳定度为82％，紧缩伸长率为61％，卷缩弹性回复率为72％；断裂强度为2.59cN/dtex，断裂伸长率为52％，单丝纤度为1.00dtex。
实施例8
一种医用抗菌织物用纤维的制备方法，其过程如下：
(1)将抗菌聚酯熔体(特性粘度为5.5dL/g)从喷丝板上的三叶形喷丝孔挤出后采用环吹风冷却；同一三叶形喷丝孔的三叶的长度之比为1.0:2.0:2.5，三叶的宽度相同，最短叶的长度与宽度之比为2.5:1，相邻两叶的中心线的夹角为120°；不同三叶形喷丝孔的三叶的形状和尺寸相同；喷丝板上共设有一圈等距分布的三叶形喷丝孔，数量为24个，以其中一个三叶形喷丝孔最短叶的中心轴线为基准线，其他所有三叶形喷丝孔最短叶的中心轴线都与基准线呈一定的夹角，沿顺时针方向，劣角夹角依次为10°、60°、2°、30°、90°、15°、22°、90°、1°、3°、170°、40°、45°、30°、10°、100°、106°、100°、41°、80°、65°、2°、50°；
抗菌聚酯由聚酯以及分散在其中的抗菌剂组成，抗菌剂为银系抗菌剂RHA-02，银离子的含量为202ppm；
(2)依照FDY工艺制得FDY丝，再经温度为120℃，时间为20min的松弛热处理制得医用抗菌织物用纤维；
FDY工艺的参数为：纺丝温度280℃，冷却温度25℃，冷却风速2.3m/s，一辊速度2000m/min，一辊温度95℃，二辊速度2900m/min，二辊温度170℃，卷绕速度2830m/min；
制得的医用抗菌织物用纤维具有三维卷曲形态，且由多根横截面呈三叶形的抗菌聚酯单丝组成；卷曲收缩率为28％，卷曲稳定度为82％，紧缩伸长率为58％，卷缩弹性回复率为72％；断裂强度为2.6cN/dtex，断裂伸长率为50％，单丝纤度为1.10dtex。

Claims (8)

  1. 一种医用抗菌织物用纤维的制备方法，其特征是：将抗菌聚酯熔体从喷丝板上的三叶形喷丝孔挤出后采用环吹风冷却，依照FDY工艺制得FDY丝，再经松弛热处理制得医用抗菌织物用纤维；
    同一三叶形喷丝孔的三叶的长度之比为1.0:1.5～2.5:1.5～2.5，三叶的宽度相同，最短叶的长度与宽度之比为2.5～3.5:1，相邻两叶的中心线的夹角为120°；不同三叶形喷丝孔的三叶的形状和尺寸相同；
    所有的三叶形喷丝孔呈同心圆分布，且各三叶形喷丝孔的最短叶的指向随机分布。
  2. 根据权利要求1所述的一种医用抗菌织物用纤维的制备方法，其特征在于，抗菌聚酯熔体的特性粘度为0.50～0.55dL/g。
  3. 根据权利要求2所述的一种医用抗菌织物用纤维的制备方法，其特征在于，抗菌聚酯主要由聚酯以及分散在其中的抗菌剂组成，抗菌剂为银系抗菌剂，银离子的含量为100～300ppm。
  4. 根据权利要求3所述的一种医用抗菌织物用纤维的制备方法，其特征在于，FDY工艺的参数为：纺丝温度270～280℃，冷却温度20～25℃，冷却风速1.80～2.30m/s，一辊速度1800～2000m/min，一辊温度85～95℃，二辊速度2700～2900m/min，二辊温度150～170℃，卷绕速度2640～2830m/min。
  5. 根据权利要求1所述的一种医用抗菌织物用纤维的制备方法，其特征在于，松弛热处理的温度为90～120℃，时间为20～30min。
  6. 采用如权利要求1～5任一项所述的一种医用抗菌织物用纤维的制备方法制得的医用抗菌织物用纤维，其特征是：具有三维卷曲形态，且由多根横截面呈三叶形的抗菌聚酯单丝组成。
  7. 根据权利要求6所述的医用抗菌织物用纤维，其特征在于，医用抗菌织物用纤维的卷曲收缩率为26～29％，卷曲稳定度为78～82％，紧缩伸长率为55～62％，卷缩弹性回复率为70～75％。
  8. 根据权利要求6所述的医用抗菌织物用纤维，其特征在于，医用抗菌织物用纤维的断裂强度为2.4～2.6cN/dtex，断裂伸长率为55.0±5.0％，单丝纤度为1.00～1.50dtex。
PCT/CN2020/095716 2019-12-29 2020-06-12 医用抗菌织物用纤维及其制备方法 WO2021135084A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2022540453A JP7261361B2 (ja) 2019-12-29 2020-06-12 医療用抗菌織物用繊維の製造方法
US17/789,517 US20220356604A1 (en) 2019-12-29 2020-06-12 Fiber for medical antibacterial fabric and preparation method therefor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911386331.2 2019-12-29
CN201911386331.2A CN111118635B (zh) 2019-12-29 2019-12-29 医用抗菌织物用纤维及其制备方法

Publications (1)

Publication Number Publication Date
WO2021135084A1 true WO2021135084A1 (zh) 2021-07-08

Family

ID=70504371

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/095716 WO2021135084A1 (zh) 2019-12-29 2020-06-12 医用抗菌织物用纤维及其制备方法

Country Status (4)

Country Link
US (1) US20220356604A1 (zh)
JP (1) JP7261361B2 (zh)
CN (1) CN111118635B (zh)
WO (1) WO2021135084A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115807271A (zh) * 2022-12-21 2023-03-17 江苏恒科新材料有限公司 喷丝板、非对称双中空卷曲涤纶及其制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111118635B (zh) * 2019-12-29 2021-08-13 江苏恒力化纤股份有限公司 医用抗菌织物用纤维及其制备方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1096249A (en) * 1964-11-24 1967-12-20 Schweizerische Viscose Spontaneously crimping composite filaments and yarns
CN2736376Y (zh) * 2004-09-07 2005-10-26 张志明 差别化异型纤维及其生产专用喷丝板
CN102260921A (zh) * 2010-05-24 2011-11-30 江苏华亚化纤有限公司 三叶异型喷丝板
CN106835309A (zh) * 2017-01-24 2017-06-13 长乐力恒锦纶科技有限公司 一种细旦多孔超亮光三叶形锦纶6长丝的生产方法
CN110983527A (zh) * 2019-12-29 2020-04-10 江苏恒力化纤股份有限公司 一种尼龙6复合纤维及其制备方法
CN111041700A (zh) * 2019-12-29 2020-04-21 江苏恒力化纤股份有限公司 一种涤纶毛毯面料的制备方法
CN111118635A (zh) * 2019-12-29 2020-05-08 江苏恒力化纤股份有限公司 医用抗菌织物用纤维及其制备方法

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3092890A (en) * 1960-11-21 1963-06-11 Monsanto Chemicals Textured multilobal filament yarn
JPS4833776B1 (zh) * 1970-07-08 1973-10-16
JPS523447Y2 (zh) * 1971-10-28 1977-01-25
JPS51102615U (zh) * 1975-02-10 1976-08-17
DE2653010A1 (de) * 1976-11-22 1978-05-24 Barmag Barmer Maschf Verfahren zur herstellung eines faserkabels
JPS6040522B2 (ja) * 1978-02-21 1985-09-11 東洋紡績株式会社 ３葉断面ポリアミド繊維の製造方法
JPS5812372A (ja) * 1981-07-16 1983-01-24 Nec Corp 半導体装置の製造方法
JPS62215027A (ja) * 1986-03-07 1987-09-21 カネボウ株式会社 強撚糸調加工糸の製造方法
US20040097158A1 (en) * 1996-06-07 2004-05-20 Rudisill Edgar N. Nonwoven fibrous sheet structures
JP2004218171A (ja) * 2003-01-17 2004-08-05 Teijin Fibers Ltd ポリエステルフィラメント糸の製造方法
US20070270071A1 (en) * 2006-05-18 2007-11-22 Greer J Travis Nonwoven fabric towel
JP2008111221A (ja) * 2006-10-04 2008-05-15 Asahi Kasei Fibers Corp 抗菌性染色布帛
EP2016824A1 (de) * 2007-07-20 2009-01-21 Sanitized AG Biozide Mischungen, deren Herstellung und Verwendungen
JP2009133025A (ja) * 2007-11-29 2009-06-18 Toray Ind Inc 熱可塑性異形断面繊維の紡糸口金および熱可塑性異形断面繊維の製造方法
CN101619504A (zh) * 2009-07-30 2010-01-06 上海纳米技术及应用国家工程研究中心有限公司 抗菌共混聚酯异形纤维的制备方法
CN101812738A (zh) * 2010-05-06 2010-08-25 张家港市龙杰特种化纤有限公司 超有光超仿真异形pet纤维的制备方法
CN102517656A (zh) * 2011-09-28 2012-06-27 苏州龙杰特种纤维股份有限公司 一种涤纶卷曲丝的制备方法及其装置
CN102517675B (zh) * 2011-12-16 2014-01-15 杭州贝斯特化纤有限公司 三维卷曲中空涤纶短纤维的生产方法
CN102978724B (zh) * 2012-12-21 2015-05-13 东华大学 一种双组份并列复合纤维及其制备方法
CN103225118B (zh) * 2013-03-27 2015-07-15 嘉兴学院 一种并列复合纤维喷丝板、用其制备三维卷曲抗菌纤维的方法及应用
CN103590139B (zh) * 2013-10-16 2016-08-17 扬州广泰化纤有限公司 一种强力三维卷曲记忆纤维及其制造方法
CN105177740A (zh) * 2015-08-10 2015-12-23 东华大学 一种双组份异形中空高吸湿卷曲复合纤维及其制备方法
CN105646857B (zh) * 2015-12-29 2018-03-06 江苏恒力化纤股份有限公司 一种低色差聚酯超亮光三叶异形丝及其制备方法
CN105839267B (zh) * 2016-04-19 2018-05-04 上海新联纺进出口有限公司 芳砜纶阻燃混纺面料

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1096249A (en) * 1964-11-24 1967-12-20 Schweizerische Viscose Spontaneously crimping composite filaments and yarns
CN2736376Y (zh) * 2004-09-07 2005-10-26 张志明 差别化异型纤维及其生产专用喷丝板
CN102260921A (zh) * 2010-05-24 2011-11-30 江苏华亚化纤有限公司 三叶异型喷丝板
CN106835309A (zh) * 2017-01-24 2017-06-13 长乐力恒锦纶科技有限公司 一种细旦多孔超亮光三叶形锦纶6长丝的生产方法
CN110983527A (zh) * 2019-12-29 2020-04-10 江苏恒力化纤股份有限公司 一种尼龙6复合纤维及其制备方法
CN111041700A (zh) * 2019-12-29 2020-04-21 江苏恒力化纤股份有限公司 一种涤纶毛毯面料的制备方法
CN111118635A (zh) * 2019-12-29 2020-05-08 江苏恒力化纤股份有限公司 医用抗菌织物用纤维及其制备方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115807271A (zh) * 2022-12-21 2023-03-17 江苏恒科新材料有限公司 喷丝板、非对称双中空卷曲涤纶及其制备方法

Also Published As

Publication number Publication date
JP2023502548A (ja) 2023-01-24
CN111118635B (zh) 2021-08-13
CN111118635A (zh) 2020-05-08
JP7261361B2 (ja) 2023-04-19
US20220356604A1 (en) 2022-11-10

Similar Documents

Publication Publication Date Title
US20190071799A1 (en) Crimped Polyamide Conductive Filament, Manufacturing Method and Application Thereof
CN103437018B (zh) 一种超仿真蚕丝型锦氨空气包覆丝的生产工艺
CN102995146B (zh) 一种细旦多孔轻网络锦纶6高弹丝的制造方法
WO2021135084A1 (zh) 医用抗菌织物用纤维及其制备方法
US20190153630A1 (en) Crimped Polyester Conductive Filament, Manufacturing Method and Application Thereof
WO2021135083A1 (zh) 一种仿棉聚酯纤维及其制备方法
WO2021135080A1 (zh) 一种针织用复合卷曲纤维及其制备方法
CN110029408B (zh) 一种弹性复合纤维及其制造方法
TW202026477A (zh) 伸縮加工絲、纖維製品、複合紡嘴及複合纖維之製造方法
CN109137099A (zh) 7d多孔中空纤维及其制备方法和应用
JP7310028B2 (ja) 再生ポリエチレンテレフタレート長繊維及びその製造方法
JP2012162826A (ja) 扁平多葉断面ポリアミド繊維
CN111041580B (zh) 一种pet/pbt同板混纤丝及其制备方法
CN203212680U (zh) 一种哑铃形纤维及喷丝板
CN111118634B (zh) 一种高弹缩丝及其制备方法
JP2018053405A (ja) 扁平断面ポリヘキサメチレンアジパミド繊維および繊維製品
CN218969448U (zh) 一种并列中空弹性纤维
CN106245122B (zh) 一种多孔涤纶长丝的制备方法
CN106245121B (zh) 一种熔融纺长丝用多孔喷丝板
CN111041633B (zh) 一种针织绒线及其制备方法
CN203270104U (zh) 一种三c组合异形中空纤维及其喷丝板
CN111118664B (zh) 一种并列自卷曲仿毛弹性纤维及其制备方法
CN111118625B (zh) 一种儿童用内衣面料的制备方法
CN110965188B (zh) 一种仿丝绸面料的制备方法
TW201708638A (zh) 聚酯纖維

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20909278

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022540453

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20909278

Country of ref document: EP

Kind code of ref document: A1