WO2023185846A1 - 一种混纺纱及其制备方法和应用 - Google Patents

一种混纺纱及其制备方法和应用 Download PDF

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Publication number
WO2023185846A1
WO2023185846A1 PCT/CN2023/084395 CN2023084395W WO2023185846A1 WO 2023185846 A1 WO2023185846 A1 WO 2023185846A1 CN 2023084395 W CN2023084395 W CN 2023084395W WO 2023185846 A1 WO2023185846 A1 WO 2023185846A1
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Prior art keywords
yarn
siro spinning
drafting
blended yarn
temperature
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PCT/CN2023/084395
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English (en)
French (fr)
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WO2023185846A9 (zh
Inventor
刘宇清
郑帅
杨静
郑骞
方剑
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南通纺织丝绸产业技术研究院
苏州大学
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Publication of WO2023185846A1 publication Critical patent/WO2023185846A1/zh
Publication of WO2023185846A9 publication Critical patent/WO2023185846A9/zh

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04—Blended or other yarns or threads containing components made from different materials
    • 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
    • D01D5/082—Melt spinning methods of mixed yarn
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
    • D02G3/402—Yarns in which fibres are united by adhesives; Impregnated yarns or threads the adhesive being one component of the yarn, i.e. thermoplastic yarn
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • 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
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01—Natural vegetable fibres
    • D10B2201/02—Cotton
    • 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
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
    • 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
    • D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
    • D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
    • 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
    • D10B2501/00—Wearing apparel
    • 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
    • D10B2503/00—Domestic or personal
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear

Definitions

  • the invention relates to the technical field of textile technology, and in particular to a blended yarn and its preparation method and application.
  • Siro spinning is to feed multiple rovings at a certain distance on the spinning frame. After multiple drafts and twists, the multiple single yarn slivers are output from the front roller, and the single yarn slivers are moved on the spinning frame due to the transfer of twist. With a small amount of twist, it is further twisted into a ply-like yarn after being spliced, and wound on the bobbin. Although the yarn formed in this way has improved strength, wear resistance, and reduced hairiness, it is precisely for To improve these properties, the roving needs to be drafted and twisted multiple times, which means that the fineness of the single yarn sliver becomes smaller in the later stages, which in turn causes the single yarn sliver to break easily during the processing.
  • the technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a new preparation method of blended yarn.
  • This method adopts sirospun spinning but overcomes the defects existing in conventional sirospun spinning. , reducing the breakage of single yarn slivers during the siro spinning process, and the blended yarn has achieved better results in terms of strength, wear resistance, hairiness, etc.
  • the invention also provides a blended yarn produced by the above method.
  • the invention also provides an application of the blended yarn produced by the above method in preparing clothing products and home textile products.
  • a preparation method of blended yarn includes:
  • the Siro spinning process multiple roving strips are drawn and twisted multiple times using the Siro spinning method to obtain the Siro spinning first yarn, and then the Siro spinning first yarn is melted with the warp
  • the fiber bundles spun out and not completely cooled are plied, and then the siro spinning drafting and twisting are performed together at least once to obtain a blended yarn; wherein, the fiber bundles that are not completely cooled are The surface of the fiber bundle is in a softened and sticky state.
  • the incompletely cooled fiber bundle is bonded to the Siro spinning virgin yarn.
  • the Siro spinning drafting and twisting process is through rubber rollers and rollers. Carry out drafting and twisting operations.
  • the Siro spinning method is carried out using a Siro spinning device.
  • the Siro spinning device includes a rear drafting zone, a middle drafting zone, and a front drafting zone arranged in sequence.
  • yarn forming area the rear drafting area includes a rear rubber roller, a rear roller
  • the middle drafting area includes a middle rubber roller, a middle roller, an upper apron provided on the middle roller, and an upper apron provided on the middle rubber roller.
  • the lower apron, the front drafting area includes the front rubber roller and the front roller
  • the yarn forming area includes the yarn guide hook, the traveler and the yarn collection tube;
  • the siro spinning method includes: using the back cot and the back roller to perform the first siro spinning drafting and twisting of the plurality of roving strips, using the middle cot and the back roller respectively.
  • the middle roller, the upper apron, and the lower apron perform the second Siro spinning drafting and twisting
  • the front rubber roller and the front roller are respectively used to perform the third Siro spinning drafting and twisting;
  • the first siro spinning yarn is obtained after the second siro spinning drafting and twisting
  • the siro spinning virgin yarn and the fiber bundles spun by melt spinning and not completely cooled are combined and jointly performed the third siro spinning drafting and twisting. .
  • the pressure of the front rubber roller is 130-160N
  • the pressure of the middle rubber roller is 110-140N
  • the pressure of the rear rubber roller is 110-150N
  • the pressure of the front rubber roller is 135-152N
  • the pressure of the middle rubber roller is 116-134N
  • the pressure of the rear rubber roller is 119-139N.
  • the fiber bundle is obtained by the following method: using a melt spinning machine to spin out multiple fibers, then using a cooling mechanism to cool them to a first temperature, and then using a stretching mechanism to bundle and draft them. , obtain fiber bundles.
  • the cooling mechanism uses air cooling to cool down.
  • the stretching mechanism is a slit airflow stretching device, also known as a slit stretching device, which can bring the spun fibers closer to each other and obtain stretching under the action of air-cooled airflow. , its structure will not be described in detail here.
  • the present invention only uses its function to realize that the spun fibers come closer to each other and are stretched.
  • the air blowing temperature and air blowing speed of the air cooling method are adjusted according to the material of the blended raw material.
  • the air blowing temperature can be 15-30°C and the air blowing speed can be 0.1-5m/s.
  • the wind blowing temperature may be 20-25°C, and the wind blowing speed may be 0.1-3 m/s.
  • the temperature of the fiber bundle when it is plied with the siro spinning yarn is controlled to be the second temperature.
  • the temperature of the fiber bundle is at the second temperature, The surface of the fiber bundle is in a softened and sticky state.
  • the difference between the first temperature and the second temperature is controlled to be 0-5°C.
  • the difference can be 0°C, 0.5°C, 1°C, 1.5°C, 2°C, 2.5°C. °C, 3°C, 3.5°C, 4°C, 4.5°C, 5°C, etc.
  • the preparation method of the blended yarn further includes setting a temperature control system for monitoring the temperature of the fiber bundle.
  • the temperature control system includes a third device for monitoring the temperature of the fiber bundle in real time.
  • a monitoring mechanism and a second monitoring mechanism the first monitoring mechanism is used to monitor the first temperature, and the second monitoring mechanism is used to monitor the second temperature.
  • the fibers spun by the melt spinning account for 1%-40%.
  • the material of the fiber bundle is polyester fiber and/or polyamide fiber
  • the material of the siro spun yarn is cotton fiber
  • the polyester fiber is a low melting point polyester fiber, for example, a polyester fiber with a melting temperature of 110-140°C can be used.
  • the polyamide fiber can be polyamide fiber with a melting temperature of 125-135°C.
  • the process of preparing the blended yarn is carried out using the following production system:
  • the production system includes a sirospun spinning device and a melt spinning device;
  • the siro spinning device includes a rear drafting zone, a middle drafting zone, a front drafting zone, and a yarn-forming zone arranged in sequence.
  • the rear drafting zone includes a rear rubber roller and a rear roller.
  • the middle drafting zone includes a middle drafting zone. Rubber roller, middle roller, set on the middle roller
  • the front drafting area includes a front rubber roller and a front roller, and the yarn forming area includes a yarn guide hook, a traveler and a yarn collection tube;
  • the melt spinning device includes a melt spinning machine, a cooling mechanism, a stretching mechanism and a temperature control system; the melt spinning machine includes a spinneret, and the cooling mechanism is arranged between the spinneret and the stretching mechanism.
  • the temperature control system includes a first monitoring mechanism and a second monitoring mechanism for real-time monitoring of the temperature of the fiber bundle, the first monitoring mechanism is provided on the stretching mechanism, and the second monitoring mechanism Set in the front drafting area.
  • Another technical solution provided by the present invention a blended yarn made by the above-mentioned preparation method.
  • Another technical solution provided by the present invention an application of the above-mentioned blended yarn in the preparation of clothing products and home textile products.
  • the present invention has the following advantages compared with the prior art:
  • the present invention innovatively provides a new method for preparing blended yarn, which method combines the melt spinning method on the basis of the siro spinning method. Specifically, the melt spinning method is introduced into the siro spinning process. The fiber bundles spun out of silk, and the fiber bundles are not completely cooled, and then use the fiber bundles that are not completely cooled and the surface is still in a softened and sticky state to act as an adhesive, which has been stretched many times in the conventional siro spinning process.
  • the first yarn that becomes more slender after twisting is effectively bonded and stabilized, and at the same time combined with the fibers spun from the melt for joint drafting and twisting, it not only reduces the breakage of single yarn slivers during the siro spinning process, Moreover, the blended yarn produced has better results in terms of strength, abrasion resistance, evenness, hairiness, etc.
  • the method of the present invention does not reduce the spinning efficiency of siro spinning, but also improves the spinning efficiency, that is, reduces the production cost, and lays the foundation for large-scale application.
  • Figure 1 is a schematic process flow diagram of a method for preparing blended yarn according to an embodiment of the present invention
  • This example provides a blended yarn and a preparation method thereof.
  • the preparation method of the blended yarn includes: during the Siro spinning process, the Siro spinning method is used to perform multiple Siro spinning drafting and twisting on multiple roving strips to obtain the Siro spinning first yarn, and then The siro spinning virgin yarn is combined with the fiber bundles spun by melt spinning and not completely cooled, and then the siro spinning draft and twist are performed at least once together to obtain a blended yarn; wherein, the fiber bundles that are not completely cooled are The surface is in a softened and sticky state. During the plying process, the incompletely cooled fiber bundles are bonded to the virgin yarn of Siro spinning.
  • the drafting and twisting of Siro spinning involves drafting and twisting through rubber rollers and rollers. operate.
  • the preparation method of the blended yarn in this example combines the sirospun spinning method and the melt spinning method.
  • the siro spinning method uses cotton as raw material
  • the melt spinning method uses polyester as raw material.
  • polyester fiber chips with a melting temperature of 140°C purchased from Dongguan Yidefa, brand 530NC010) are used as raw materials, and the blending is controlled at the same time.
  • the ratio is 7% (that is, in terms of mass percentage, in the blended yarn, the polyester fiber spun by melt spinning accounts for 7%).
  • the preparation method of the blended yarn in this example adopts the following production system, in which the sirospun spinning method is carried out using a sirospun spinning device, and the melt spinning method is carried out using a melt spinning device; specifically, the The production system includes sirospun spinning device and melt spinning device;
  • the Siro spinning device includes a rear drafting zone, a middle drafting zone, a front drafting zone, and a yarn-forming zone that are arranged in sequence.
  • the rear drafting zone includes a rear rubber roller, a rear roller, and a guide bar opening.
  • the middle drafting area includes a middle rubber roller, a middle roller, an upper apron arranged on the middle roller, and a lower apron arranged on the middle rubber roller.
  • the front drafting area includes a front rubber roller and a front roller.
  • the yarn-forming area includes Yarn guides, travelers and yarn collection tubes;
  • the melt spinning device includes a melt spinning machine, a cooling mechanism, a stretching mechanism and a temperature control system; the melt spinning machine includes a spinneret, the cooling mechanism is arranged between the spinneret and the stretching mechanism, and the spinneret, The cooling mechanisms are respectively arranged above the front rubber rollers.
  • the temperature control system includes a first monitoring mechanism and a second monitoring mechanism for real-time monitoring of the temperature of the fiber bundles.
  • the first monitoring mechanism is arranged on the stretching mechanism, and the second monitoring mechanism It is arranged in the front drafting area.
  • the second monitoring mechanism is arranged on the front rubber roller.
  • the first monitoring mechanism and the second monitoring mechanism respectively include temperature sensors.
  • the fiber bundle is obtained as follows: a melt spinning machine is used to spin multiple fibers, and then a cooling mechanism is used to cool them to the first temperature, and then the fiber bundle is bundled and drafted through a stretching mechanism to obtain the fiber bundle.
  • multiple roving strips of the back cot and back roller pairs are used for the first drafting and twisting of Siro spinning, and the middle cot, middle roller, upper apron, and lower apron are used for the second time.
  • Siro spinning drafting and twisting, the front cot and front roller are used for the third siro spinning drafting and twisting; the pressure of the front cot is 145N, the pressure of the middle cot is 121N, and the pressure of the rear cot is 125N; the front roller The speed is 180r/min, the total draft ratio is 8, the draft ratio between the front roller and the yarn guide hook is 1.5, and the winding speed is 1200m/min.
  • the first siro spinning yarn is obtained after the second siro spinning drafting and twisting;
  • the siro spinning virgin yarn and the fiber bundles spun by melt spinning and not completely cooled are combined and jointly performed the third siro spinning drafting and twisting. .
  • the cooling mechanism uses air cooling to cool down.
  • the air blowing temperature is 20°C, cooled to the first temperature (122°C), and the temperature of the fiber bundle is controlled to be the second when it is combined with the Siro spinning yarn.
  • temperature (120°C) at this time, the surface of the fiber bundle is still in a softened and sticky state, which can better bond the cotton fibers firmly;
  • through the first monitoring mechanism and the second monitoring mechanism real-time Monitor the temperature of the fiber bundle, and then adjust the air blowing rate in real time according to the aforementioned temperature setting value so that the temperature of the fiber bundle at the stretching mechanism reaches the first temperature, and the temperature at the front rubber roller when combined with the Sirospun virgin yarn reaches Second temperature.
  • the two thick cotton slivers 1 are fed into the guide opening 2 respectively and then enter the rear drafting zone. They are drafted and twisted under the action of the rear rubber roller 3 and the rear roller 4, and then enter the middle drafting zone and are Under the action of roller 5, middle roller 6, upper apron 7, and lower apron 8, it is drafted and twisted again to obtain the first yarn of Siro spinning;
  • polyester fiber slices After the polyester fiber slices are measured, they are added to the melt spinning machine 9 and ejected through the spinneret 91 (melt spinning process parameters: using a screw extruder, the temperature in the first zone of the screw is 170°C, and the temperature in the second zone of the screw is 190°C, The temperature in the three zones of the screw is 186°C and the spinning speed is 800m/min).
  • the cooling mechanism 10 After being air-cooled by the cooling mechanism 10, it enters the stretching mechanism 11 (using slit air flow stretching) to be bundled and drafted to obtain fiber bundles;
  • the melt spinning method uses polyamide as the raw material. Specifically, polyamide fiber chips with a melting temperature of 130°C (purchased from Belden Nylon, brand BTD12DW) are used as the raw material, and the blending ratio is controlled to 7%;
  • Melt spinning process parameters the temperature in the first zone of the screw is 160°C, the temperature in the second zone of the screw is 180°C, and the temperature in the third zone of the screw is 176°C;
  • Example 2 Basically the same as Example 1, the only difference is that the blending ratio is 10%.
  • Example 2 Basically the same as Example 1, the only difference is that the completely cooled (room temperature) fiber bundle and the siro spun virgin yarn are drafted and twisted together under the action of the front rubber roller and the front roller.
  • Example 2 Basically the same as Example 2, the only difference is that the completely cooled (room temperature) fiber bundle and the siro spun virgin yarn are drafted and twisted together under the action of the front rubber roller and the front roller.
  • the present invention uses the fiber bundles spun by melt spinning that are not completely cooled and the surface is still in a softened and sticky state to act as an adhesive. After multiple drafts and twists in the conventional siro spinning process, The slender first yarn is effectively bonded and stabilized. This method greatly improves the stability of the bond between fibers or yarns. It can greatly reduce the breakage of single yarn sliver. At the same time, the blended yarn produced has better results in terms of strength, wear resistance, evenness, hairiness, etc.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

一种混纺纱及其制备方法和应用，该混纺纱的制备方法包括：在赛络纺纺纱过程中，采用赛络纺纺纱方法将多根粗纱条进行多次赛络纺牵伸加捻，获得赛络纺初纱，使该赛络纺初纱与经熔融纺丝纺出且未完全冷却的纤维束进行合股，再共同进行至少一次赛络纺牵伸加捻，获得混纺纱；在合股过程中，该未完全冷却的纤维束通过其呈现软化黏着的表面将赛络纺初纱粘接，该方法采用了赛络纺纺纱但克服了常规赛络纺纺纱时存在的缺陷，降低了赛络纺过程中单纱须条的断头现象，而且制成的混纺纱在强力、耐磨性、毛羽数量等方面获得了更好的效果。

Description

一种混纺纱及其制备方法和应用 技术领域
本发明涉及纺织工艺技术领域，具体涉及一种混纺纱及其制备方法和应用。
背景技术
赛络纺是在细纱机上喂入多根保持一定间距的粗纱，经多次牵伸加捻后，由前罗拉输出该多根单纱须条，并由于捻度的传递而使单纱须条上带有少量的捻度，拼合后被进一步加捻成类似合股的纱线，卷绕在筒管上，该方式成纱的纱线虽然改善了强力、耐磨性，毛羽数量减少，但是正是为了改善该些性能，粗纱需经多次牵伸加捻，也即造成越到后期单纱须条的细度越小，进而造成加工过程中单纱须条容易断头，如果在生产过程中，未发现断头现象，将造成错支纱，纱线质量不好，而为了及时发现断头现象，目前有人提出增加检测设备以检出部分单纱须条断头而其余部分照常纺的不理想情况，然后做到生产系统自停进而避免生产出错支纱，然而，该方式并未对生产效率有所改善，反而还降低了生产效率，尤其是在增加了设备成本的情况下并未对正常成纱纱线的性能有所贡献，不利于工业化应用。
发明内容
本发明所要解决的技术问题是克服现有技术中的不足，提供一种混纺纱的新的制备方法，该方法采用了赛络纺纺纱但克服了常规赛络纺纺纱时存在的缺陷，降低了赛络纺过程中单纱须条的断头现象，而且制成的混纺纱在强力、耐磨性、毛羽数量等方面获得了更好的效果。
本发明同时还提供了一种上述方法制成的混纺纱。
本发明同时还提供了一种上述方法制成的混纺纱在制备服装用品、家纺用品中的应用。
为解决以上技术问题，本发明采取的一种技术方案如下：一种混纺纱的制备方法，该混纺纱的制备方法包括：
在赛络纺纺纱过程中，采用赛络纺纺纱方法将多根粗纱条进行多次赛络纺牵伸加捻，获得赛络纺初纱，然后使该赛络纺初纱与经熔融纺丝纺出且未完全冷却的纤维束进行合股，再共同进行至少一次赛络纺牵伸加捻，获得混纺纱；其中，该未完全冷却 的纤维束的表面呈软化黏着的状态，在合股过程中，该未完全冷却的纤维束与所述赛络纺初纱相粘接，所述赛络纺牵伸加捻为通过胶辊和罗拉进行牵伸操作和加捻操作。
根据本发明的一些优选方面，所述赛络纺纺纱方法采用赛络纺纺纱装置进行，该赛络纺纺纱装置包括依次设置的后牵伸区、中牵伸区、前牵伸区、成纱区，该后牵伸区包括后胶辊、后罗拉，该中牵伸区包括中胶辊、中罗拉、设置在所述中罗拉上的上皮圈、设置在所述中胶辊上的下皮圈，该前牵伸区包括前胶辊、前罗拉，该成纱区包括导纱钩、钢丝圈和纱线收集管；
所述赛络纺纺纱方法包括：分别采用所述后胶辊和所述后罗拉对所述的多根粗纱条进行第一次赛络纺牵伸加捻，分别采用所述中胶辊、所述中罗拉、所述上皮圈、所述下皮圈进行第二次赛络纺牵伸加捻，分别采用前胶辊和前罗拉进行第三次赛络纺牵伸加捻；
其中，在进行第二次赛络纺牵伸加捻后获得所述赛络纺初纱；
在进行第三次赛络纺牵伸加捻时，使该赛络纺初纱与经熔融纺丝纺出且未完全冷却的纤维束进行合股并共同进行第三次赛络纺牵伸加捻。
在本发明的一些实施方式中，所述前胶辊的压力130-160N，所述中胶辊的压力110-140N，所述后胶辊的压力110-150N。进一步地，所述前胶辊的压力135-152N，所述中胶辊的压力116-134N，所述后胶辊的压力119-139N。
根据本发明的一些优选方面，所述纤维束通过如下方法获得：采用熔融纺丝机纺出多根纤维，而后采用冷却机构将其冷却至第一温度，再通过拉伸机构进行集束、牵伸，获得纤维束。
在本发明的一些实施方式中，所述冷却机构采用风冷方式进行降温。
在本发明的一些实施方式中，拉伸机构为狭缝式气流拉伸，也称之为狭缝式拉伸装置，可以在风冷气流的作用下使纺出的纤维相互靠拢并且获得拉伸，其结构在此不做具体赘述，本发明仅利用其功能实现纺出的纤维相互靠拢并且获得拉伸。
进一步地，该风冷方式的风吹温度和风吹速率根据混纺原料材质进行调整，例如风吹温度可以为15-30℃，风吹速率可以为0.1-5m/s。更进一步地，在本发明的一些实施方式中，风吹温度可以为20-25℃，风吹速率可以为0.1-3m/s。
根据本发明的一些优选方面，控制所述纤维束在与所述赛络纺初纱合股时所述纤维束的温度为第二温度，当所述纤维束的温度处于所述第二温度时，该纤维束的表面呈软化黏着的状态。
根据本发明的一些优选方面，控制所述第一温度与所述第二温度的差值为0-5℃，例如差值可以为0℃、0.5℃、1℃、1.5℃、2℃、2.5℃、3℃、3.5℃、4℃、4.5℃、5℃等。
根据本发明的一些优选方面，该混纺纱的制备方法还包括设置对所述纤维束的温度进行监测的控温系统，该控温系统包括分别用于实时监测所述纤维束的温度的第一监测机构和第二监测机构，所述第一监测机构用于监测所述第一温度，所述第二监测机构用于监测所述第二温度。
根据本发明的一些优选方面，以质量百分含量计，所述混纺纱中，所述熔融纺丝纺出的纤维占1％-40％。
在本发明的一些实施方式中，以质量百分含量计，所述混纺纱中，所述熔融纺丝纺出的纤维占1％-35％；或，以质量百分含量计，所述混纺纱中，所述熔融纺丝纺出的纤维占1％-30％；或，以质量百分含量计，所述混纺纱中，所述熔融纺丝纺出的纤维占1％-25％；或，以质量百分含量计，所述混纺纱中，所述熔融纺丝纺出的纤维占1％-20％；或，以质量百分含量计，所述混纺纱中，所述熔融纺丝纺出的纤维占1％-15％；或，以质量百分含量计，所述混纺纱中，所述熔融纺丝纺出的纤维占1％-10％；或，以质量百分含量计，所述混纺纱中，所述熔融纺丝纺出的纤维占2％-25％。
根据本发明的一些优选且具体的方面，所述纤维束的材质为聚酯纤维和/或聚酰胺纤维，所述赛络纺初纱的材质为棉纤维。
在本发明的一些实施方式中，所述聚酯纤维选用低熔点涤纶纤维，例如可以选用熔融温度为110-140℃的涤纶纤维。
在本发明的一些实施方式中，所述聚酰胺纤维可以选用熔融温度为125-135℃的聚酰胺纤维。
在本发明的一些实施方式中，制备该混纺纱的过程采用如下生产系统进行：
该生产系统包括赛络纺纺纱装置、熔融纺丝装置；
该赛络纺纺纱装置包括依次设置的后牵伸区、中牵伸区、前牵伸区、成纱区，该后牵伸区包括后胶辊、后罗拉，该中牵伸区包括中胶辊、中罗拉、设置在所述中罗拉 上的上皮圈、设置在所述中胶辊上的下皮圈，该前牵伸区包括前胶辊、前罗拉，该成纱区包括导纱钩、钢丝圈和纱线收集管；
该熔融纺丝装置包括熔融纺丝机、冷却机构、拉伸机构和控温系统；该熔融纺丝机包括喷丝板，所述冷却机构设置所述喷丝板与所述拉伸机构之间，所述控温系统包括分别用于实时监测所述纤维束的温度的第一监测机构和第二监测机构，所述第一监测机构设置在所述拉伸机构上，所述第二监测机构设置在所述前牵伸区内。
本发明提供的又一技术方案：一种上述所述的制备方法制成的混纺纱。
本发明提供的又一技术方案：一种上述所述的混纺纱在制备服装用品、家纺用品中的应用。
由于以上技术方案的采用，本发明与现有技术相比具有如下优点：
本发明创新地提供了一种新的制备混纺纱的方法，该方法在赛络纺纺纱方法基础上结合了熔融纺丝方法，具体是在赛络纺纺纱的过程中引入了熔融纺丝纺出的纤维束，而且该纤维束并未完全冷却，进而利用其未完全冷却且表面仍然呈软化黏着的状态，使其充当粘合剂，将常规赛络纺过程中经过多次牵伸加捻后而变得较为细长的初纱进行有效粘接稳固，同时结合熔融纺丝出的纤维进行共同牵伸加捻，不仅降低了赛络纺过程中单纱须条的断头现象，而且制成的混纺纱在强力、耐磨性、条干均匀性、毛羽数量等方面获得了更好的效果。此外，本发明方法并未降低赛络纺的纺纱效率，反而还提高了纺纱效率，也即降低了生产成本，为大规模应用奠定了基础。
附图说明
图1为本发明实施例混纺纱的制备方法的工艺流程示意图；
其中，1、粗棉条；2、导条口；3、后胶辊；4、后罗拉；5、中胶辊；6、中罗拉；7、上皮圈；8、下皮圈；9、熔融纺丝机；91、喷丝板；10、冷却机构；11、拉伸机构；12、前胶辊；13、前罗拉；14、导纱钩；15、钢丝圈；16、纱线收集管。
具体实施方式
以下结合具体实施例对上述方案做进一步说明；应理解，这些实施例是用于说明本发明的基本原理、主要特征和优点，而本发明不受以下实施例的范围限制；实施例中采用的实施条件可以根据具体要求做进一步调整，未注明的实施条件通常为常规实验中的条件。
下述中，如无特殊说明，所有的原料基本来自于商购或者通过本领域的常规方法制备而得。
实施例1
本例提供一种混纺纱及其制备方法。该混纺纱的制备方法包括：在赛络纺纺纱过程中，采用赛络纺纺纱方法将多根粗纱条进行多次赛络纺牵伸加捻，获得赛络纺初纱，然后使该赛络纺初纱与经熔融纺丝纺出且未完全冷却的纤维束进行合股，再共同进行至少一次赛络纺牵伸加捻，获得混纺纱；其中，该未完全冷却的纤维束的表面呈现软化黏着的状态，在合股过程中，该未完全冷却的纤维束与赛络纺初纱相粘接，赛络纺牵伸加捻为通过胶辊和罗拉进行牵伸操作和加捻操作。
具体地，本例的混纺纱的制备方法结合了赛络纺纺纱方法和熔融纺丝方法。赛络纺纺纱方法采用棉作为原料，熔融纺丝方法采用涤纶作为原料，具体是采用了熔融温度为140℃的涤纶纤维切片(购自东莞亿德发，牌号530NC010)作为原料，同时控制混纺比为7％(也即，以质量百分含量计，混纺纱中，熔融纺丝纺出的涤纶纤维占7％)。
实际上，本例的混纺纱的制备方法采用了如下生产系统进行，其中赛络纺纺纱方法采用赛络纺纺纱装置进行，熔融纺丝方法采用熔融纺丝装置进行；具体地，该生产系统包括赛络纺纺纱装置、熔融纺丝装置；
其中，该赛络纺纺纱装置包括依次设置的后牵伸区、中牵伸区、前牵伸区、成纱区，该后牵伸区包括后胶辊、后罗拉、导条口，该中牵伸区包括中胶辊、中罗拉、设置在中罗拉上的上皮圈、设置在中胶辊上的下皮圈，该前牵伸区包括前胶辊、前罗拉，该成纱区包括导纱钩、钢丝圈和纱线收集管；
该熔融纺丝装置包括熔融纺丝机、冷却机构、拉伸机构和控温系统；该熔融纺丝机包括喷丝板，冷却机构设置喷丝板与拉伸机构之间，且喷丝板、冷却机构分别设置在前胶辊的上方，控温系统包括分别用于实时监测纤维束的温度的第一监测机构和第二监测机构，第一监测机构设置在拉伸机构上，第二监测机构设置在前牵伸区内，具体将第二监测机构设置在前胶辊上，第一监测机构、第二监测机构分别包括温度传感器。
纤维束按照如下方式获得：采用熔融纺丝机纺出多根纤维，而后采用冷却机构将其冷却至第一温度，再通过拉伸机构进行集束、牵伸，获得纤维束。
本例中，分别采用后胶辊和后罗拉对的多根粗纱条进行第一次赛络纺牵伸加捻，分别采用中胶辊、中罗拉、上皮圈、下皮圈进行第二次赛络纺牵伸加捻，分别采用前胶辊和前罗拉进行第三次赛络纺牵伸加捻；前胶辊的压力145N，中胶辊的压力121N，后胶辊的压力125N；前罗拉速度180r/min，总牵伸倍数8，前罗拉与导纱钩之间的牵伸倍数1.5，络纱速度1200m/min。
其中，在进行第二次赛络纺牵伸加捻后获得赛络纺初纱；
在进行第三次赛络纺牵伸加捻时，使该赛络纺初纱与经熔融纺丝纺出且未完全冷却的纤维束进行合股并共同进行第三次赛络纺牵伸加捻。
本例中，冷却机构采用风冷方式进行降温，风吹温度为20℃，冷却至第一温度(122℃)，并控制纤维束在与赛络纺初纱合股时纤维束的温度为第二温度(120℃)，此时，该纤维束的表面仍呈软化黏着的状态，可以较好地将棉纤维粘接稳固；同时，本例中，通过第一监测机构、第二监测机构分别实时监测纤维束的温度，进而根据前述温度设定值实时调整风吹速率以使纤维束在拉伸机构处的温度达到第一温度，在前胶辊处与赛络纺初纱合股时的温度达到第二温度。
具体地，如图1所示，本例中的工艺过程如下：
将两条粗棉条1分别喂入导条口2后进入后牵伸区，在后胶辊3、后罗拉4的作用下得以牵伸加捻，然后进入到中牵伸区并在中胶辊5、中罗拉6、上皮圈7、下皮圈8的作用下再次牵伸加捻，获得了赛络纺初纱；
将涤纶纤维切片计量后加入熔融纺丝机9中并经喷丝板91喷出(熔融纺丝工艺参数：采用螺杆挤出机，螺杆一区温度为170℃，螺杆二区温度为190℃，螺杆三区温度为186℃，纺丝速度为800m/min)，经冷却机构10风冷之后进入拉伸机构11(采用狭缝式气流拉伸)得以集束、牵伸，获得纤维束；
然后使赛络纺初纱与纤维束在前牵伸区，具体在前胶辊12、前罗拉13的作用下共同牵伸加捻，然后通过导纱钩14牵引并在钢丝圈15的带动下卷绕在纱线收集管16上，获得混合纱。
实施例2
基本同实施例1，其区别仅在于：
(1)熔融纺丝方法采用聚酰胺作为原料，具体是采用了熔融温度为130℃的聚酰胺纤维切片(购自百通尼龙，牌号BTD12DW)作为原料，同时控制混纺比为7％；
熔融纺丝工艺参数：螺杆一区温度为160℃，螺杆二区温度为180℃，螺杆三区温度为176℃；
(2)所述前胶辊的压力140N，所述中胶辊的压力121N，所述后胶辊的压力125N。
实施例3
基本同实施例1，其区别仅在于：混纺比为10％。
对比例1
基本同实施例1，其区别仅在于：将完全冷却(室温)的纤维束与赛络纺初纱在前胶辊、前罗拉的作用下共同牵伸加捻。
对比例2
基本同实施例2，其区别仅在于：将完全冷却(室温)的纤维束与赛络纺初纱在前胶辊、前罗拉的作用下共同牵伸加捻。
性能测试
将实施例1-3以及对比例1-2所制成的混纺纱进行如下一些性能测试，具体结果参见表1所示。
表1
由上述可知，本发明利用未完全冷却且表面仍然呈软化黏着的状态的熔融纺丝纺出的纤维束，使其充当粘合剂，将常规赛络纺过程中经过多次牵伸加捻后而变得较为细长的初纱进行有效粘接稳固，该方法大大地提高了纤维或纱线之间的结合稳定 性，可以极大减少单纱须条的断头现象，同时制成的混纺纱在强力、耐磨性、条干均匀性、毛羽数量等方面获得了更好的效果。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围，凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (20)

  1. 一种混纺纱的制备方法，其特征在于，该混纺纱的制备方法包括：
    在赛络纺纺纱过程中，采用赛络纺纺纱方法将多根粗纱条进行多次赛络纺牵伸加捻，获得赛络纺初纱，然后使该赛络纺初纱与经熔融纺丝纺出且未完全冷却的纤维束进行合股，再共同进行至少一次赛络纺牵伸加捻，获得混纺纱；其中，该未完全冷却的纤维束的表面呈软化黏着的状态，在合股过程中，该未完全冷却的纤维束与所述赛络纺初纱相粘接；
    所述赛络纺纺纱方法采用赛络纺纺纱装置进行，该赛络纺纺纱装置包括依次设置的后牵伸区、中牵伸区、前牵伸区、成纱区，该后牵伸区包括后胶辊、后罗拉，该中牵伸区包括中胶辊、中罗拉、设置在所述中罗拉上的上皮圈、设置在所述中胶辊上的下皮圈，该前牵伸区包括前胶辊、前罗拉，该成纱区包括导纱钩、钢丝圈和纱线收集管；
    所述赛络纺纺纱方法包括：分别采用所述后胶辊和所述后罗拉对所述的多根粗纱条进行第一次赛络纺牵伸加捻，分别采用所述中胶辊、所述中罗拉、所述上皮圈、所述下皮圈进行第二次赛络纺牵伸加捻，分别采用前胶辊和前罗拉进行第三次赛络纺牵伸加捻；其中，在进行第二次赛络纺牵伸加捻后获得所述赛络纺初纱；在进行第三次赛络纺牵伸加捻时，使该赛络纺初纱与经熔融纺丝纺出且未完全冷却的纤维束进行合股并共同进行第三次赛络纺牵伸加捻；
    所述纤维束通过如下方法获得：采用熔融纺丝机纺出多根纤维，而后采用冷却机构将其冷却至第一温度，再通过拉伸机构进行集束、牵伸，获得纤维束；控制所述纤维束在与所述赛络纺初纱合股时所述纤维束的温度为第二温度，当所述纤维束的温度处于所述第二温度时，该纤维束的表面呈软化黏着的状态，且控制所述第一温度与所述第二温度的差值为0-5℃；
    以质量百分含量计，所述混纺纱中，所述熔融纺丝纺出的纤维占1％-40％。
  2. 根据权利要求1所述的混纺纱的制备方法，其特征在于，所述纤维束的材质为聚酯纤维和/或聚酰胺纤维，所述赛络纺初纱的材质为棉纤维。
  3. 一种混纺纱的制备方法，其特征在于，该混纺纱的制备方法包括：
    在赛络纺纺纱过程中，采用赛络纺纺纱方法将多根粗纱条进行多次赛络纺牵伸加捻，获得赛络纺初纱，然后使该赛络纺初纱与经熔融纺丝纺出且未完全冷却的纤维束 进行合股，再共同进行至少一次赛络纺牵伸加捻，获得混纺纱；其中，该未完全冷却的纤维束的表面呈软化黏着的状态，在合股过程中，该未完全冷却的纤维束与所述赛络纺初纱相粘接，所述赛络纺牵伸加捻为通过胶辊和罗拉进行牵伸操作和加捻操作。
  4. 根据权利要求3所述的混纺纱的制备方法，其特征在于，所述赛络纺纺纱方法采用赛络纺纺纱装置进行，该赛络纺纺纱装置包括依次设置的后牵伸区、中牵伸区、前牵伸区、成纱区，该后牵伸区包括后胶辊、后罗拉，该中牵伸区包括中胶辊、中罗拉、设置在所述中罗拉上的上皮圈、设置在所述中胶辊上的下皮圈，该前牵伸区包括前胶辊、前罗拉，该成纱区包括导纱钩、钢丝圈和纱线收集管；
    所述赛络纺纺纱方法包括：分别采用所述后胶辊和所述后罗拉对所述的多根粗纱条进行第一次赛络纺牵伸加捻，分别采用所述中胶辊、所述中罗拉、所述上皮圈、所述下皮圈进行第二次赛络纺牵伸加捻，分别采用前胶辊和前罗拉进行第三次赛络纺牵伸加捻；
    其中，在进行第二次赛络纺牵伸加捻后获得所述赛络纺初纱；
    在进行第三次赛络纺牵伸加捻时，使该赛络纺初纱与经熔融纺丝纺出且未完全冷却的纤维束进行合股并共同进行第三次赛络纺牵伸加捻。
  5. 根据权利要求4所述的混纺纱的制备方法，其特征在于，所述前胶辊的压力130-160N，所述中胶辊的压力110-140N，所述后胶辊的压力110-150N。
  6. 根据权利要求5所述的混纺纱的制备方法，其特征在于，所述前胶辊的压力135-152N，所述中胶辊的压力116-134N，所述后胶辊的压力119-139N。
  7. 根据权利要求3所述的混纺纱的制备方法，其特征在于，所述纤维束通过如下方法获得：采用熔融纺丝机纺出多根纤维，而后采用冷却机构将其冷却至第一温度，再通过拉伸机构进行集束、牵伸，获得纤维束。
  8. 根据权利要求7所述的混纺纱的制备方法，其特征在于，控制所述纤维束在与所述赛络纺初纱合股时所述纤维束的温度为第二温度，当所述纤维束的温度处于所述第二温度时，该纤维束的表面呈软化黏着的状态。
  9. 根据权利要求8所述的混纺纱的制备方法，其特征在于，控制所述第一温度与所述第二温度的差值为0-5℃。
  10. 根据权利要求7所述的混纺纱的制备方法，其特征在于，所述冷却机构采用风冷方式进行降温，且该风冷方式的风吹温度为15-30℃，风吹速率为0.1-5m/s。
  11. 根据权利要求7所述的混纺纱的制备方法，其特征在于，所述拉伸机构采用气流拉伸的方式。
  12. 根据权利要求8或9所述的混纺纱的制备方法，其特征在于，该混纺纱的制备方法还包括设置对所述纤维束的温度进行监测的控温系统，该控温系统包括分别用于实时监测所述纤维束的温度的第一监测机构和第二监测机构，所述第一监测机构用于监测所述第一温度，所述第二监测机构用于监测所述第二温度。
  13. 根据权利要求3所述的混纺纱的制备方法，其特征在于，以质量百分含量计，所述混纺纱中，所述熔融纺丝纺出的纤维占1％-40％。
  14. 根据权利要求13所述的混纺纱的制备方法，其特征在于，以质量百分含量计，所述混纺纱中，所述熔融纺丝纺出的纤维占1％-25％。
  15. 根据权利要求14所述的混纺纱的制备方法，其特征在于，以质量百分含量计，所述混纺纱中，所述熔融纺丝纺出的纤维占1％-15％。
  16. 根据权利要求15所述的混纺纱的制备方法，其特征在于，以质量百分含量计，所述混纺纱中，所述熔融纺丝纺出的纤维占1％-10％。
  17. 根据权利要求3所述的混纺纱的制备方法，其特征在于，所述纤维束的材质为聚酯纤维和/或聚酰胺纤维，所述赛络纺初纱的材质为棉纤维。
  18. 根据权利要求17所述的混纺纱的制备方法，其特征在于，所述聚酯纤维选用熔融温度为110-140℃的涤纶纤维，所述聚酰胺纤维选用熔融温度为125-135℃的聚酰胺纤维。
  19. 一种权利要求1-19中任一项权利要求所述的制备方法制成的混纺纱。
  20. 一种权利要求19所述的混纺纱在制备服装用品、家纺用品中的应用。
PCT/CN2023/084395 2022-03-29 2023-03-28 一种混纺纱及其制备方法和应用 WO2023185846A1 (zh)

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