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CN117265713A - Spinning method for changing yarn structure - Google Patents

Spinning method for changing yarn structure Download PDF

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Publication number
CN117265713A
CN117265713A CN202311211057.1A CN202311211057A CN117265713A CN 117265713 A CN117265713 A CN 117265713A CN 202311211057 A CN202311211057 A CN 202311211057A CN 117265713 A CN117265713 A CN 117265713A
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yarn
round belt
tex
front roller
spinning
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覃小红
张越
滕志霖
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Donghua University
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Donghua University
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Priority to CN202311211057.1A priority Critical patent/CN117265713A/en
Publication of CN117265713A publication Critical patent/CN117265713A/en
Priority to ZA2024/00433A priority patent/ZA202400433B/en
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H7/00Spinning or twisting arrangements
    • D01H7/92Spinning or twisting arrangements for imparting transient twist, i.e. false twist
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product
    • Y02P70/62Manufacturing 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

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

Abstract

The invention relates to a spinning method for changing yarn structure, a first circular belt and a second circular belt are sequentially arranged between a front roller of a spinning frame and a yarn guiding hook, yarn strands formed by drawing rough yarns are output from the front roller, a downward inclination angle phi bypasses the lower part of the first circular belt to form a spinning section I, and then bypasses the upper part of the second circular belt to form a spinning section II, and yarns are obtained by winding after the yarn guiding hook; the first round belt and the second round belt move transversely, and tangential friction force is applied to the contacted yarn strands respectively; the designed twist coefficient of the yarn is 190-270, and the actual measured twist coefficient is 191-295. According to the spinning method for changing the yarn structure, the strands are twisted and untwisted twice under the action of the two circular belts, the dynamic twist of the yarn at the position close to the front roller jaw is increased due to the twisting action, and enough yarn forming tension is provided for the finished yarn, so that ultra-low twist yarn can be prepared, and the yarn breakage is small; the yarn body of the yarn prepared by the method is fluffy, soft in hand feeling and clear in fabric texture.

Description

一种改变纱线结构的纺纱方法A spinning method that changes the yarn structure

技术领域Technical field

本发明属于纺织加工技术领域,涉及一种改变纱线结构的纺纱方法。The invention belongs to the technical field of textile processing and relates to a spinning method that changes the yarn structure.

背景技术Background technique

随着纺织市场的发展和纺织面料的创新,消费者更加追求服装面料的性价优,呈现从注重量的满足转向追求质的提升。柔软纺织品能带给人身体、心灵上的安慰,有效缓解当代高压工作人群身体和心理上的疲惫、压力和焦虑。With the development of the textile market and the innovation of textile fabrics, consumers are increasingly pursuing the cost-effectiveness of clothing fabrics, showing a shift from focusing on quantitative satisfaction to pursuing quality improvement. Soft textiles can bring physical and mental comfort to people, and effectively relieve the physical and mental fatigue, stress and anxiety of the contemporary high-pressure working population.

目前纺织品柔软整理的方式有:(1)化学整理,利用化学试剂改变纤维的结晶区使得纤维柔软,或将表面活性剂涂覆于织物表面,在织物与人体摩擦时起到润滑作用,化学整理能得到良好的柔软效果但对环境污染大;(2)物理整理,运用物理机械手段对织物拍打、旋转、搓揉等整理使织物蓬松,该方法是一种消极式柔软整理,虽然整理过程无化学助剂,是一种绿色环保的整理方式,但对整理过程中对织物的损伤、破坏是不可逆的。The current methods of textile softening and finishing include: (1) Chemical finishing, which uses chemical reagents to change the crystalline area of the fiber to make the fiber soft, or coats surfactants on the surface of the fabric to lubricate the fabric when it rubs against the human body. Chemical finishing Can obtain good softening effect but causes great pollution to the environment; (2) Physical finishing, using physical and mechanical means to beat, rotate, rub and other finishing methods on the fabric to make the fabric fluffy. This method is a passive softening finishing, although the finishing process does not require Chemical additives are a green and environmentally friendly finishing method, but the damage and destruction to the fabric during the finishing process is irreversible.

传统环锭纺纱线结构呈现“内紧外松”特征,纱线手感发硬,织物柔软性差。改变纱线结构以改变织物柔软的方法在避免化学整理带来污染问题的同时减少了物理整理增加的后道工序,可以降低生产成本,实现真正的绿色环保。The traditional ring spinning yarn structure exhibits the characteristics of "tight inside and loose outside". The yarn feels hard and the fabric has poor softness. The method of changing the yarn structure to change the softness of the fabric avoids pollution problems caused by chemical finishing and reduces the additional post-processing steps of physical finishing, which can reduce production costs and achieve true green environmental protection.

专利CN103361786公开了一种在环锭纺纱之前对纱线施加假捻的方法及装置,在前罗拉的下游,牵拉加捻的纱线使其依次跨过行进环形皮带的第一和第二运行部,这样纱线包绕第一运行部的第一凸表面,然后在包绕第二运行部的第二凸表面之前在第一和第二运行部之间通过。第一和第二凸表面的每一个和纱线之间的摩擦在共同方向上施加假捻,且要求第一和第二环形皮带的每一个具有相应的线性运行部,线性运行部基本上平行于彼此,使得线性运行部可平行于前部牵伸辊对准。与传统的环锭纺相比,其平行设置环形皮带假捻方法可以形成具有较低残余扭矩的纱线,其导致具有柔软手感的针织织物,但这种技术运用在机织物上时,柔软特征不明显,其根本原因是这种技术未改变纱线“内紧外松”的特征,且此技术适用于生产捻系数280~320的低捻纱,当生产捻系数280以下的超低捻纱线以制备更加柔软织物时,纺纱张力不够将造成纱线断头,纱线质量下降,无法保证后道工序正常使用,同时,因为超低捻纱捻系数较低,导致其织物纹路不清晰。Patent CN103361786 discloses a method and device for applying false twist to yarn before ring spinning. Downstream of the front roller, the twisted yarn is pulled to cross the first and second traveling endless belts in sequence. run such that the yarn wraps around the first convex surface of the first run and then passes between the first and second runs before wrapping around the second convex surface of the second run. Friction between each of the first and second convex surfaces and the yarn exerts a false twist in a common direction and requires that each of the first and second endless belts have corresponding linear runs that are substantially parallel to each other so that the linear runs can be aligned parallel to the front drafting rollers. Compared with traditional ring spinning, its parallel-set endless belt false twisting method can form yarns with lower residual torque, which results in knitted fabrics with a soft feel. However, when this technology is applied to woven fabrics, the softness characteristics It is not obvious. The fundamental reason is that this technology does not change the "tight inside and loose outside" characteristics of the yarn, and this technology is suitable for producing low-twisted yarn with a twist coefficient of 280 to 320. When producing ultra-low-twisted yarn with a twist coefficient of less than 280 When thread is used to prepare softer fabrics, insufficient spinning tension will cause yarn breakage, yarn quality will decline, and normal use of subsequent processes cannot be guaranteed. At the same time, because the twist coefficient of ultra-low twist yarn is low, the fabric texture will be unclear. .

为解决上述问题,有必要开发一种改变纱线结构的纺纱方法使其产品具备柔软、蓬松的特征。In order to solve the above problems, it is necessary to develop a spinning method that changes the yarn structure to make the product soft and fluffy.

发明内容Contents of the invention

本发明的目的是解决现有技术中纱线结构无法改变无法制备超低捻纱以生产柔软织物及超低捻下布面纹路不清晰的问题,提供一种改变纱线结构的纺纱方法。The purpose of the present invention is to solve the problem in the prior art that the yarn structure cannot be changed and ultra-low twist yarn cannot be prepared to produce soft fabrics and the cloth surface texture is unclear under ultra-low twist, and to provide a spinning method that changes the yarn structure.

为达到上述目的,本发明采用的技术方案如下:In order to achieve the above objects, the technical solutions adopted by the present invention are as follows:

一种改变纱线结构的纺纱方法,在细纱机的前罗拉至导纱钩之间依次设置第一圆带和第二圆带,粗纱经牵伸后形成的纱线须条自前罗拉输出,先向下倾斜角度Φ(即与纱线须条输送至前罗拉之前的输送路径呈角度Φ)绕过第一圆带下方形成纺纱段Ⅰ,后绕过第二圆带上方形成纺纱段Ⅱ,经导纱钩后卷绕得到纱线;A spinning method that changes the yarn structure. A first round belt and a second round belt are arranged in sequence between the front roller of the spinning frame and the yarn guide hook. The yarn strips formed after the roving is drafted are output from the front roller. First, tilt downward at an angle Φ (that is, at an angle Φ to the conveying path before the yarn strips are transported to the front roller) and go around the bottom of the first round belt to form the spinning section I, and then go around the top of the second round belt to form the spinning section. Ⅱ, the yarn is obtained by winding through the yarn guide hook;

第一圆带和第二圆带横向移动,分别对接触到的纱线须条施加切向摩擦力;The first round belt and the second round belt move laterally and exert tangential friction force on the yarn whiskers in contact respectively;

第一圆带和第二圆带的线速比(V1/V2,即线速度之比)为1.5~8.5,在该范围内纺制的纱线具有更大的实测捻系数;The linear speed ratio of the first round belt and the second round belt (V1/V2, that is, the ratio of linear speeds) is 1.5 to 8.5. The yarn spun in this range has a larger measured twist coefficient;

Φ为15°~30°,纱线须条与第一圆带接触形成的包围角θ1为45°~60°,纱线须条与第二圆带接触形成的包围角θ2为60°~75°,且θ12Φ is 15° to 30°, the wrapping angle θ 1 formed by the contact between the yarn whiskers and the first round belt is 45° to 60°, and the wrapping angle θ 2 formed by the contact between the yarn whiskers and the second round belt is 60°. ~75°, and θ 12 ;

θ1、θ2的大小影响假捻效率,理论上包围角度越大,假捻效率越高,越有利于纱线超低捻纺纱状态下成纱。但考虑到实际生产中,包围角度越大,纱线接头越困难,因此设定以上包围角度。The size of θ 1 and θ 2 affects the false twisting efficiency. Theoretically, the larger the wrapping angle, the higher the false twisting efficiency, which is more conducive to yarn formation in ultra-low twist spinning state. However, considering that in actual production, the larger the wrapping angle, the more difficult it is for yarn splicing, so the above wrapping angle is set.

作为优选的技术方案:As the preferred technical solution:

如上所述的一种改变纱线结构的纺纱方法,当纱线为Z捻时,第一圆带水平向左移动,第二圆带水平向右移动;当纱线为S捻时,第一圆带水平向右移动,第二圆带水平向左移动。A spinning method that changes the yarn structure as described above. When the yarn is Z-twisted, the first circular belt moves horizontally to the left, and the second circular belt moves horizontally to the right; when the yarn is S-twisted, the first circular belt moves horizontally to the left. One circular belt moves horizontally to the right, and the second circular belt moves horizontally to the left.

如上所述的一种改变纱线结构的纺纱方法,第一圆带和第二圆带的速度独立控制。As described above, in a spinning method that changes the yarn structure, the speeds of the first round belt and the second round belt are independently controlled.

如上所述的一种改变纱线结构的纺纱方法,纱线须条材质为天然纤维(棉、麻、蚕丝等)及人造纤维(粘胶、天丝、莫代尔、涤纶、锦纶等)中的一种以上。As described above, a spinning method that changes the yarn structure. The yarn material is made of natural fibers (cotton, linen, silk, etc.) and man-made fibers (viscose, Tencel, modal, polyester, nylon, etc.) More than one kind.

如上所述的一种改变纱线结构的纺纱方法,粗纱的捻系数为102~105,定量为4~10g/10m。As mentioned above, a spinning method that changes the yarn structure, the twist coefficient of the roving is 102~105, and the basis weight is 4~10g/10m.

如上所述的一种改变纱线结构的纺纱方法,第一圆带与前罗拉的中心距为5~44mm,第二圆带与前罗拉的中心距为9~60mm,第一圆带与第二圆带之间的中心距为4~16mm,第一圆带速度与前罗拉线速比值为1~21,第二圆带速度与前罗拉线速比值为0.7~14。As described above, the center distance between the first round belt and the front roller is 5 to 44 mm, the center distance between the second round belt and the front roller is 9 to 60 mm, and the center distance between the first round belt and the front roller is 9 to 60 mm. The center distance between the second round belts is 4 to 16 mm, the ratio of the speed of the first round belt to the line speed of the front roller is 1 to 21, and the ratio of the speed of the second round belt to the line speed of the front roller is 0.7 to 14.

如上任一项所述的一种改变纱线结构的纺纱方法,纱线的设计捻系数为190~270,实测捻系数为191~295,为超低捻纱,而现有技术的方法生产超低捻纱时,在前罗拉至导纱钩之间的纱线须条所受张力不够,导致无法成纱;A spinning method that changes the yarn structure as described in any of the above items. The designed twist coefficient of the yarn is 190-270, and the measured twist coefficient is 191-295. It is an ultra-low twist yarn, and the existing technology method produces When using ultra-low twist yarn, the tension on the yarn strips between the front roller and the yarn guide hook is not enough, resulting in failure to form yarn;

为克服超低捻纱易断头无法成纱的缺陷,首先,本发明配置两根圆带接触前罗拉与导纱钩之间的纱线须条并对其产生切向摩擦力,增加纺纱张力,减少断头制备超低捻纱;其次,控制两根圆带速度大小、与纱线须条的接触角度,使得第一圆带产生的摩擦力大于第二圆带产生的摩擦力,从而纺纱段Ⅰ的捻度大于纺纱段Ⅱ的捻度,且两段捻向相反,因此,纺纱过程中的动态捻度得以缓慢释放以获得纱线的相对均匀的结构(径向堆砌密度中心化范围增加)及柔软的手感(弯曲刚度降低);In order to overcome the defect that ultra-low twist yarn is easy to break and cannot form yarn, first of all, the present invention configures two round belts to contact the yarn strips between the front roller and the yarn guide hook and generate tangential friction on them, thereby increasing the spinning speed. Tension to reduce breakage and prepare ultra-low twist yarn; secondly, control the speed of the two round belts and the contact angle with the yarn striations so that the friction force generated by the first round belt is greater than the friction force generated by the second round belt, thereby The twist of spinning section I is greater than the twist of spinning section II, and the twist directions of the two sections are opposite. Therefore, the dynamic twist during the spinning process can be slowly released to obtain a relatively uniform structure of the yarn (radial packing density centered range Increased) and soft feel (reduced bending stiffness);

此外,为了避免所述纺纱张力过大而导致纱线断头,优选各圆带与前罗拉线速比值为1~21,同时,考虑纱线接头问题,纱线须条与第一圆带接触形成的包围角θ1为45°~60°,纱线须条与第二圆带接触形成的包围角θ2为60°~75°,且θ12),实测捻系数为191~295,与现有技术相比,纱线中纤维具有更大的捻系数,从而由其织造得到的布面纹路更清晰;In addition, in order to avoid yarn breakage caused by excessive spinning tension, the linear speed ratio between each round belt and the front roller is preferably 1 to 21. At the same time, considering the problem of yarn joints, the yarn strips and the first round belt The enveloping angle θ 1 formed by the contact is 45° to 60°, and the enclosing angle θ 2 formed by the contact between the yarn whisker and the second round belt is 60° to 75°, and θ 12 ). The measured twist coefficient is 191 ~295. Compared with the existing technology, the fibers in the yarn have a larger twist coefficient, so the cloth surface texture obtained by weaving it is clearer;

纱线直径较对比样增加5%~25%,对比样制备方法基本同纱线,不同之处仅在于粗纱经牵伸后形成的纱线须条自前罗拉输出后直接喂入导纱钩后卷绕;The diameter of the yarn is increased by 5% to 25% compared to the comparative sample. The preparation method of the comparative sample is basically the same as that of the yarn. The only difference is that the yarn strips formed after the roving is drafted are directly fed to the yarn guide hook after being output from the front roller and then rolled. around; around

纱线中纤维的轴向螺旋轨迹半径为纱线直径的3%~20%,纱线中纤维的径向堆砌密度中心化范围为纱线半径的45%~55%。The axial spiral trajectory radius of the fibers in the yarn is 3% to 20% of the yarn diameter, and the radial packing density of the fibers in the yarn is centered in the range of 45% to 55% of the yarn radius.

如上所述的改变纱线结构的纺纱方法,纱线为纯纺纱、混纺纱或复合纱,纱线的设计支数为6S~32S。As mentioned above, the spinning method that changes the yarn structure, the yarn is pure spinning yarn, blended yarn or composite yarn, and the design count of the yarn is 6S~32S.

如上所述的改变纱线结构的纺纱方法,当纱线的材质为棉时,相对抗弯刚度为1.7×10-4~3.5×10-4gf·cm·tex-1,断裂强度为12.5~16.5cN/tex;当纱线的材质为麻时,相对抗弯刚度为4.5×10-4~9.5×10-4gf·cm·tex-1,断裂强度为16~26cN/tex;当纱线的材质为蚕丝时,相对抗弯刚度为2.5×10-4~3.1×10-4gf·cm·tex-1,断裂强度为18~21cN/tex;当纱线的材质为粘胶时,相对抗弯刚度为2.0×10-4~3.1×10-4gf·cm·tex-1,断裂强度为12~14cN/tex;当纱线的材质为羊毛时,相对抗弯刚度为1.1×10-4~1.5×10-4gf·cm·tex-1,断裂强度为6~9cN/tex;当纱线的材质为锦纶时,相对抗弯刚度为1.3×10-4~1.5×10-4gf·cm·tex-1,断裂强度为23~35cN/tex;当纱线的材质为羊毛/棉(20/80)混纺时,相对抗弯刚度为1.1×10-4~3.5×10-4gf·cm·tex-1,断裂强度为10~13cN/tex;当纱线的材质为锦纶/棉(50/50)混纺时,相对抗弯刚度为1.3×10-4~3.5×10-4gf·cm·tex-1,断裂强度为18~25cN/tex;当纱线的材质为涤纶时,相对抗弯刚度为5.5×10-4~5.8×10- 4gf·cm·tex-1,断裂强度为25~30cN/tex。As mentioned above, when the yarn structure is changed by the spinning method of cotton, the relative bending stiffness is 1.7×10 -4 ~ 3.5×10 -4 gf·cm·tex -1 and the breaking strength is 12.5 ~16.5cN/tex; when the yarn material is hemp, the relative bending stiffness is 4.5×10 -4 ~9.5×10 -4 gf·cm·tex -1 , and the breaking strength is 16~26cN/tex; when the yarn When the thread material is silk, the relative bending stiffness is 2.5×10 -4 ~ 3.1×10 -4 gf·cm·tex -1 and the breaking strength is 18~21cN/tex; when the yarn material is viscose, The relative bending stiffness is 2.0×10 -4 ~ 3.1×10 -4 gf·cm·tex -1 and the breaking strength is 12~14cN/tex; when the yarn material is wool, the relative bending stiffness is 1.1×10 -4 ~ 1.5×10 -4 gf·cm·tex -1 , breaking strength is 6 ~ 9cN/tex; when the yarn material is nylon, the relative bending stiffness is 1.3×10 -4 ~ 1.5×10 -4 gf·cm·tex -1 , breaking strength is 23~35cN/tex; when the yarn material is wool/cotton (20/80) blended, the relative bending stiffness is 1.1×10 -4 ~ 3.5×10 -4 gf·cm·tex -1 , breaking strength is 10~13cN/tex; when the yarn material is nylon/cotton (50/50) blended, the relative bending stiffness is 1.3×10 -4 ~ 3.5×10 -4 gf·cm·tex -1 , breaking strength is 18~25cN/tex; when the yarn material is polyester, the relative bending stiffness is 5.5×10 -4 ~5.8× 10 -4 gf ·cm·tex -1 , Breaking strength is 25~30cN/tex.

发明原理:Principle of invention:

超低捻状态下,纱线须条在纺制过程中因成纱张力不足极易断头,可纺性差,且纱线捻系数较小,其织物纹路不清晰。In the ultra-low twist state, the yarn strips are easily broken due to insufficient yarn tension during the spinning process, resulting in poor spinnability, and the yarn twist coefficient is small, and the fabric texture is unclear.

本发明创造性地设计出一种改变纱线结构的纺纱方法,须条在两根圆带作用下被两次加捻-退捻(第一圆带与纱线接触后对第一圆带上方的须条起加捻作用,下方起退捻作用;第二圆带同理),其加捻作用使得靠近前罗拉钳口处纱线动态捻度增加,为成纱提供足够的成纱张力,从而可制备超低捻纱(捻系数190~270),且纱线断头少;在其重复退捻作用下,纱线的螺旋轨迹半径减小,且其结构蓬松,直径增加,纱体手感柔软。控制其两次加捻-退捻的程度不同,降低纺纱过程重的动态捻度下降程度,使得纱线成形时扭矩缓慢释放,稳定成纱张力,保证成纱质量。同时,由于两根圆带对纱体表面的摩擦,使得纱线实测捻系数增加,其织物纹路清晰。纱线纺制方法操作简易,纱线的柔软性、蓬松度效果提升明显,其织物纹路清晰。The present invention creatively designs a spinning method that changes the yarn structure. The whiskers are twisted and untwisted twice under the action of two round belts (the first round belt is in contact with the yarn and then twisted above the first round belt). The whiskers of the belt play a twisting role, and the lower part plays a detwisting role; the same applies to the second round belt). Its twisting action increases the dynamic twist of the yarn near the nip of the front roller, providing sufficient yarn tension for the yarn. Ultra-low twist yarn (twist coefficient 190-270) can be produced with less yarn breakage; under its repeated untwisting action, the radius of the spiral trajectory of the yarn decreases, the structure is fluffy, the diameter increases, and the yarn body feels soft . Controlling the different degrees of twisting and untwisting of the two times reduces the degree of dynamic twist decrease during the heavy spinning process, allowing the torque to be slowly released during yarn forming, stabilizing the yarn tension and ensuring yarn quality. At the same time, due to the friction between the two round belts on the surface of the yarn body, the measured twist coefficient of the yarn increases and the fabric texture is clear. The yarn spinning method is easy to operate, the softness and bulkiness of the yarn are significantly improved, and the fabric texture is clear.

有益效果:Beneficial effects:

(1)本发明的一种改变纱线结构的纺纱方法,须条在两根圆带作用下被两次加捻-退捻,其加捻作用使得靠近前罗拉钳口处纱线动态捻度增加,为成纱提供足够的成纱张力,从而可制备超低捻纱(捻系数190~270),且纱线断头少;(1) A spinning method of the present invention that changes the yarn structure. The sliver is twisted and untwisted twice under the action of two round belts. The twisting effect causes the dynamic twist of the yarn near the nip of the front roller. Increase to provide sufficient yarn tension for the yarn, so that ultra-low twist yarn (twist coefficient 190~270) can be prepared with less yarn breakage;

(2)本发明制得的纱线纱体蓬松、手感柔软,织物纹路清晰;(2) The yarn produced by the present invention has a fluffy yarn body, soft hand feel, and clear fabric texture;

(3)本发明改变纱线结构的纺纱方法操作简易,纱线的柔软性、蓬松度效果提升明显,纱线捻系数增加,其织物纹路清晰。(3) The spinning method of changing the yarn structure of the present invention is easy to operate, the softness and bulkiness of the yarn are significantly improved, the yarn twist coefficient is increased, and the fabric texture is clear.

附图说明Description of the drawings

图1为本发明纱线制备示意图;Figure 1 is a schematic diagram of yarn preparation of the present invention;

图2为纱线须条自前罗拉至第二圆带纺纱路径侧视图;Figure 2 is a side view of the yarn spinning path from the front roller to the second round belt;

图3为第一圆带、第二圆带空间位置示意图;Figure 3 is a schematic diagram of the spatial positions of the first round belt and the second round belt;

图4为对比样1与实施例1的纱线轴向形态对比图;Figure 4 is a comparison diagram of the yarn axial morphology of Comparative Sample 1 and Example 1;

图5为对比样4与实施例4的纱线径向形态对比图;Figure 5 is a comparison diagram of the radial shape of the yarn between Comparative Sample 4 and Example 4;

图6为对比样1与实施例1纱线堆砌密度分布对比图;Figure 6 is a comparison diagram of yarn packing density distribution between Comparative Sample 1 and Example 1;

图7为对比样9与实施例9表层纤维的倾斜程度对比图;Figure 7 is a comparison chart of the inclination degree of the surface fibers of Comparative Sample 9 and Example 9;

图8为本发明纱线制备机理示意图;Figure 8 is a schematic diagram of the yarn preparation mechanism of the present invention;

其中,1-纱线须条,2-前罗拉,3-第一圆带,4-第二圆带,5-导纱钩,6-纱线。Among them, 1-yarn bar, 2-front roller, 3-first round belt, 4-second round belt, 5-yarn guide hook, 6-yarn.

具体实施方式Detailed ways

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。The present invention will be further described below in conjunction with specific embodiments. It should be understood that these examples are only used to illustrate the invention and are not intended to limit the scope of the invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

本发明的测试方法如下:The test method of the present invention is as follows:

径向堆砌密度中心化范围:利用CT扫描获取纱线横截面后,采用等距同心圆法计算纱线中纤维径向堆砌密度,自纱线中心至纱线外围,当某一圆环内纤维堆砌密度首次高出外层相邻圆环内的堆砌密度0.05时,将此圆环的半径范围定为纱线的径向堆砌密度中心化范围。Radial packing density centralization range: After using CT scanning to obtain the yarn cross-section, the equidistant concentric circle method is used to calculate the radial packing density of fibers in the yarn. From the center of the yarn to the periphery of the yarn, when the fibers in a certain circle When the packing density is 0.05 higher than the packing density in the adjacent outer ring for the first time, the radius range of this ring is defined as the radial packing density centralization range of the yarn.

相对抗弯刚度:采用KES-FB2-S弯曲测试仪测试。Relative bending stiffness: tested using KES-FB2-S bending tester.

断裂强度:依据GB/T 3916-2013(纺织品卷装纱单根纱线断裂强力和断裂伸长率的测定(CRE法)),采用YYG063型全自动单纱强力仪测试。Breaking strength: According to GB/T 3916-2013 (Determination of breaking strength and elongation at break of single yarn of textile package yarn (CRE method)), the YYG063 fully automatic single yarn strength tester was used to test.

实施例1Example 1

一种改变纱线结构的纺纱方法,纱线的设计支数为6S,设计捻系数为200,如图1所示,具体纺制过程如下:A spinning method that changes the yarn structure. The design count of the yarn is 6S and the design twist coefficient is 200. As shown in Figure 1, the specific spinning process is as follows:

如图2、3所示,在细纱机的前罗拉2至导纱钩5之间依次设置第一圆带3和第二圆带,材质为棉的粗纱经牵伸后形成的纱线须条1自前罗拉2输出,先向下倾斜15°绕过第一圆带3下方形成纺纱段Ⅰ,后绕过第二圆带上方形成纺纱段Ⅱ,经导纱钩5后卷绕得到棉纱线6;As shown in Figures 2 and 3, a first round belt 3 and a second round belt are arranged in sequence between the front roller 2 of the spinning frame and the yarn guide hook 5. The yarn material is a roving of cotton that is formed after drafting. 1 is output from the front roller 2. It is first inclined downward by 15° and goes around the bottom of the first round belt 3 to form the spinning section I, and then goes around the top of the second round belt to form the spinning section II. It is then wound through the yarn guide hook 5 to obtain the cotton yarn. Line 6;

第一圆带3和第二圆带横向移动,分别对接触到的纱线须条1施加切向摩擦力;棉纱线6为Z捻,第一圆带3水平向左移动,第二圆带水平向右移动;The first round belt 3 and the second round belt move laterally, exerting tangential friction force on the contacted yarn strips 1 respectively; the cotton yarn 6 is Z-twisted, the first round belt 3 moves horizontally to the left, and the second round belt Move horizontally to the right;

粗纱的捻系数为102,定量为10g/10m;纱线须条1与第一圆带3接触形成的包围角θ1为45°,纱线须条1与第二圆带接触形成的包围角θ2为60°;第一圆带3与前罗拉2中心距为5mm,第二圆带与前罗拉2中心距为21mm,第一圆带3与第二圆带4之间的中心距为16mm,第一圆带3和第二圆带4的速度独立控制,第一圆带3速度与前罗拉2线速比值为21,第二圆带4速度与前罗拉2线速比值为2.5,第一圆带3和第二圆带4的线速比为8.4;The twist coefficient of the roving is 102, and the basis weight is 10g/10m; the wrapping angle θ 1 formed by the contact between the yarn bar 1 and the first round belt 3 is 45°, and the wrapping angle formed by the contact between the yarn bar 1 and the second round belt θ 2 is 60°; the center distance between the first round belt 3 and the front roller 2 is 5mm, the center distance between the second round belt and the front roller 2 is 21mm, and the center distance between the first round belt 3 and the second round belt 4 is 16mm, the speed of the first round belt 3 and the second round belt 4 are independently controlled. The ratio of the speed of the first round belt 3 to the line speed of the front roller 2 is 21, and the ratio of the speed of the second round belt 4 to the line speed of the front roller 2 is 2.5. The linear speed ratio of the first round belt 3 and the second round belt 4 is 8.4;

制备对比样1,对比样1的制备方法基本同上述棉纱线,不同之处仅在于材质为棉的粗纱经牵伸后形成的纱线须条自前罗拉输出后直接喂入导纱钩后卷绕;制得的对比样1的平均直径为374μm;Prepare comparative sample 1. The preparation method of comparative sample 1 is basically the same as the above-mentioned cotton yarn. The only difference is that the yarn sliver formed by drawing the roving made of cotton is directly fed into the yarn guide hook after being output from the front roller and then wound. ;The average diameter of the prepared comparative sample 1 is 374 μm;

制得的棉纱线的实测支数为6S,实测捻系数为205;如图4所示,棉纱线平均直径为468μm,较对比样1增加25%;棉纱线的平均直径明显大于对比样1,且纱线内纤维分布相对疏松,这使得棉纱线的纱体蓬松、手感柔软。棉纱线中纤维的轴向螺旋轨迹半径为棉纱线直径的20%,棉纱线中纤维的径向堆砌密度中心化范围为棉纱线半径的55%;棉纱线的相对抗弯刚度为1.7×10-4gf·cm·tex-1,断裂强度为13cN/tex。The measured count of the produced cotton yarn is 6S, and the measured twist coefficient is 205. As shown in Figure 4, the average diameter of the cotton yarn is 468 μm, an increase of 25% compared with the comparative sample 1; the average diameter of the cotton yarn is significantly larger than the comparative sample 1. And the fiber distribution in the yarn is relatively loose, which makes the yarn body of cotton yarn fluffy and soft to the touch. The axial spiral trajectory radius of the fibers in the cotton yarn is 20% of the cotton yarn diameter, and the radial packing density of the fibers in the cotton yarn is centered at 55% of the cotton yarn radius; the relative bending stiffness of the cotton yarn is 1.7×10 - 4 gf·cm·tex -1 , breaking strength is 13cN/tex.

如图6所示,对比样1的堆砌密度中心化范围集中在靠近纱芯位置(横轴0处),纱线的堆砌密度中心化范围集中在纱线半径的50%以内,且从纱芯至纱表面(横轴500处),尤其是0~200pixel以内,纱线的纤维堆砌密度整体相对均匀,这说明纱线内纤维分布相对分散,这将导致纱线的蓬松,增强纱线的柔软性。As shown in Figure 6, the central range of the packing density of Comparative Sample 1 is concentrated close to the yarn core (0 on the horizontal axis), and the central range of the packing density of the yarn is concentrated within 50% of the yarn radius, and from the yarn core As far as the yarn surface (at 500 on the horizontal axis), especially within 0 to 200 pixels, the fiber packing density of the yarn is relatively uniform as a whole, which shows that the fiber distribution within the yarn is relatively dispersed, which will cause the yarn to be fluffy and enhance the softness of the yarn. sex.

实施例2Example 2

一种改变纱线结构的纺纱方法,纱线的设计支数为7S,设计捻系数为220,具体纺制过程如下:A spinning method that changes the yarn structure. The design count of the yarn is 7S and the design twist coefficient is 220. The specific spinning process is as follows:

在细纱机的前罗拉至导纱钩之间依次设置第一圆带和第二圆带,材质为麻的粗纱经牵伸后形成的纱线须条自前罗拉输出,先向下倾斜15°绕过第一圆带下方形成纺纱段Ⅰ,后绕过第二圆带上方形成纺纱段Ⅱ,经导纱钩后卷绕得到麻纱线;A first round belt and a second round belt are arranged in sequence between the front roller of the spinning machine and the yarn guide hook. The yarn sliver formed by drawing the roving made of hemp is output from the front roller and is first wound at a downward angle of 15°. Pass under the first round belt to form spinning section I, then go around the top of the second round belt to form spinning section II, and then wind through the yarn guide hook to obtain hemp yarn;

第一圆带和第二圆带横向移动,分别对接触到的纱线须条施加切向摩擦力;麻纱线为S捻,第一圆带水平向右移动,第二圆带水平向左移动;The first round belt and the second round belt move laterally, exerting tangential friction force on the contacted yarn strips respectively; the hemp yarn is S-twisted, the first round belt moves horizontally to the right, and the second round belt moves horizontally to the left move;

粗纱的捻系数为102,定量为8g/10m;纱线须条与第一圆带接触形成的包围角θ1为45°,纱线须条与第二圆带接触形成的包围角θ2为60°;第一圆带与前罗拉中心距为10mm,第二圆带与前罗拉中心距为14mm,第一圆带与第二圆带之间的中心距为4mm,第一圆带和第二圆带的速度独立控制,第一圆带速度与前罗拉线速比值为16,第二圆带速度与前罗拉线速比值为10,第一圆带和第二圆带的线速比为1.6;The twist coefficient of the roving is 102, and the basis weight is 8g/10m; the wrapping angle θ 1 formed by the contact between the yarn strips and the first round belt is 45°, and the wrapping angle θ 2 formed by the contact between the yarn strips and the second round belt is 60°; the center distance between the first round belt and the front roller is 10mm, the center distance between the second round belt and the front roller is 14mm, the center distance between the first round belt and the second round belt is 4mm, the center distance between the first round belt and the The speeds of the two round belts are independently controlled. The ratio of the speed of the first round belt to the line speed of the front roller is 16. The ratio of the speed of the second round belt to the line speed of the front roller is 10. The line speed ratio of the first round belt and the second round belt is 1.6;

制备对比样2,对比样2的制备方法基本同上述麻纱线,不同之处仅在于材质为麻的粗纱经牵伸后形成的纱线须条自前罗拉输出后直接喂入导纱钩后卷绕;制得的对比样2的平均直径为266μm;Prepare Comparative Sample 2. The preparation method of Comparative Sample 2 is basically the same as the above-mentioned hemp yarn. The only difference is that the yarn sliver formed by drawing the hemp roving is directly fed to the yarn guide hook after being output from the front roller and then rolled. Winding; the average diameter of the prepared comparative sample 2 is 266 μm;

制得的麻纱线的实测支数为7S,实测捻系数为228;麻纱线平均直径为319μm,较对比样2增加20%;麻纱线中纤维的轴向螺旋轨迹半径为麻纱线直径的16%,麻纱线中纤维的径向堆砌密度中心化范围为麻纱线半径的53%;麻纱线的相对抗弯刚度为4.8×10-4gf·cm·tex-1,断裂强度为18cN/tex。The measured count of the prepared hemp yarn is 7S, and the measured twist coefficient is 228; the average diameter of the hemp yarn is 319 μm, an increase of 20% compared with the comparative sample 2; the axial spiral trajectory radius of the fibers in the hemp yarn is 16% of the diameter, the central range of the radial packing density of the fibers in the hemp yarn is 53% of the radius of the hemp yarn; the relative bending stiffness of the hemp yarn is 4.8×10 -4 gf·cm·tex -1 , and the fracture Strength is 18cN/tex.

实施例3Example 3

一种改变纱线结构的纺纱方法,纱线的设计支数为16S,设计捻系数为230,具体纺制过程如下:A spinning method that changes the yarn structure. The design count of the yarn is 16S and the design twist coefficient is 230. The specific spinning process is as follows:

在细纱机的前罗拉至导纱钩之间依次设置第一圆带和第二圆带,材质为蚕丝的粗纱经牵伸后形成的纱线须条自前罗拉输出,先向下倾斜15°绕过第一圆带下方形成纺纱段Ⅰ,后绕过第二圆带上方形成纺纱段Ⅱ,经导纱钩后卷绕得到蚕丝纱线;A first round belt and a second round belt are arranged in sequence between the front roller of the spinning machine and the yarn guide hook. The yarn sliver formed by drafting the roving made of silk is output from the front roller and is first wound at a downward angle of 15°. Pass under the first round belt to form spinning section I, then go around the top of the second round belt to form spinning section II, and then wind through the yarn guide hook to obtain silk yarn;

第一圆带和第二圆带横向移动,分别对接触到的纱线须条施加切向摩擦力;蚕丝纱线为Z捻,第一圆带水平向左移动,第二圆带水平向右移动;The first round belt and the second round belt move laterally, exerting tangential friction on the contacted yarn strips respectively; the silk yarn is Z-twisted, the first round belt moves horizontally to the left, and the second round belt moves horizontally to the right move;

粗纱的捻系数为103,定量为6g/10m;纱线须条与第一圆带接触形成的包围角θ1为45°,纱线须条与第二圆带接触形成的包围角θ2为60°;第一圆带与前罗拉中心距为20mm,第二圆带与前罗拉中心距为26mm,第一圆带与第二圆带之间的中心距为6mm,第一圆带和第二圆带的速度独立控制,第一圆带速度与前罗拉线速比值为10,第二圆带速度与前罗拉线速比值为6,第一圆带和第二圆带的线速比为1.7;The twist coefficient of the roving is 103, and the basis weight is 6g/10m; the wrapping angle θ 1 formed by the contact between the yarn strips and the first round belt is 45°, and the wrapping angle θ 2 formed by the contact between the yarn strips and the second round belt is 60°; the center distance between the first round belt and the front roller is 20mm, the center distance between the second round belt and the front roller is 26mm, the center distance between the first round belt and the second round belt is 6mm, the center distance between the first round belt and the The speeds of the two round belts are independently controlled. The ratio of the speed of the first round belt to the line speed of the front roller is 10. The ratio of the speed of the second round belt to the line speed of the front roller is 6. The line speed ratio of the first round belt and the second round belt is 1.7;

制备对比样3,对比样3的制备方法基本同上述蚕丝纱线,不同之处仅在于材质为蚕丝的粗纱经牵伸后形成的纱线须条自前罗拉输出后直接喂入导纱钩后卷绕;制得的对比样3的平均直径为246μm;Prepare Comparative Sample 3. The preparation method of Comparative Sample 3 is basically the same as the above-mentioned silk yarn. The only difference is that the yarn sliver formed by drawing the roving made of silk is directly fed to the yarn guide hook after being output from the front roller and then rolled. Winding; the average diameter of the prepared comparative sample 3 is 246 μm;

制得的蚕丝纱线的实测支数为16S,实测捻系数为234;蚕丝纱线平均直径为283μm,较对比样3增加15%;蚕丝纱线中纤维的轴向螺旋轨迹半径为蚕丝纱线直径的13%,蚕丝纱线中纤维的径向堆砌密度中心化范围为蚕丝纱线半径的50%;蚕丝纱线的相对抗弯刚度为2.9×10-4gf·cm·tex-1,断裂强度为19cN/tex。The measured count of the prepared silk yarn is 16S, and the measured twist coefficient is 234; the average diameter of the silk yarn is 283 μm, an increase of 15% compared with Comparative Sample 3; the axial spiral trajectory radius of the fibers in the silk yarn is 13% of the diameter, and the central range of the radial packing density of the fibers in the silk yarn is 50% of the radius of the silk yarn; the relative bending stiffness of the silk yarn is 2.9×10 -4 gf·cm·tex -1 , breaking Strength is 19cN/tex.

实施例4Example 4

一种改变纱线结构的纺纱方法,纱线的设计支数为16S,设计捻系数为190,具体纺制过程如下:A spinning method that changes the yarn structure. The design count of the yarn is 16S and the design twist coefficient is 190. The specific spinning process is as follows:

在细纱机的前罗拉至导纱钩之间依次设置第一圆带和第二圆带,材质为粘胶的粗纱经牵伸后形成的纱线须条自前罗拉输出,先向下倾斜15°绕过第一圆带下方形成纺纱段Ⅰ,后绕过第二圆带上方形成纺纱段Ⅱ,经导纱钩后卷绕得到粘胶纱线;The first round belt and the second round belt are arranged in sequence between the front roller of the spinning machine and the yarn guide hook. The yarn sliver formed by drawing the roving made of viscose is output from the front roller, and is first inclined downward by 15°. Go around the bottom of the first round belt to form the spinning section I, then go around the top of the second round belt to form the spinning section II, and wind it through the yarn guide hook to obtain the viscose yarn;

第一圆带和第二圆带横向移动,分别对接触到的纱线须条施加切向摩擦力;粘胶纱线为S捻,第一圆带水平向右移动,第二圆带水平向左移动;The first round belt and the second round belt move laterally, exerting tangential friction force on the contacted yarn strips respectively; the viscose yarn is S-twisted, the first round belt moves horizontally to the right, and the second round belt moves horizontally to the right. Move left;

粗纱的捻系数为103,定量为6g/10m;纱线须条与第一圆带接触形成的包围角θ1为45°,纱线须条与第二圆带接触形成的包围角θ2为60°;第一圆带与前罗拉中心距为30mm,第二圆带与前罗拉中心距为38mm,第一圆带与第二圆带之间的中心距为8mm,第一圆带和第二圆带的速度独立控制,第一圆带速度与前罗拉线速比值为18,第二圆带速度与前罗拉线速比值为9,第一圆带和第二圆带的线速比为2;The twist coefficient of the roving is 103, and the basis weight is 6g/10m; the wrapping angle θ 1 formed by the contact between the yarn strips and the first round belt is 45°, and the wrapping angle θ 2 formed by the contact between the yarn strips and the second round belt is 60°; the center distance between the first round belt and the front roller is 30mm, the center distance between the second round belt and the front roller is 38mm, the center distance between the first round belt and the second round belt is 8mm, the center distance between the first round belt and the The speeds of the two round belts are independently controlled. The ratio of the speed of the first round belt to the line speed of the front roller is 18. The ratio of the speed of the second round belt to the line speed of the front roller is 9. The line speed ratio of the first round belt to the second round belt is 2;

制备对比样4,对比样4的制备方法基本同上述粘胶纱线,不同之处仅在于材质为粘胶的粗纱经牵伸后形成的纱线须条自前罗拉输出后直接喂入导纱钩后卷绕;如图5所示,制得的对比样4的平均直径为230μm;Prepare Comparative Sample 4. The preparation method of Comparative Sample 4 is basically the same as the above-mentioned viscose yarn. The only difference is that the yarn sliver formed by drawing the roving made of viscose is directly fed to the yarn guide hook after being output from the front roller. After winding; as shown in Figure 5, the average diameter of the prepared comparative sample 4 is 230 μm;

制得的纱线的实测支数为16S,实测捻系数为191;如图5所示,粘胶纱线平均直径为253μm,较对比样4增加10%;粘胶纱线中纤维的轴向螺旋轨迹半径为粘胶纱线直径的9%,粘胶纱线中纤维的径向堆砌密度中心化范围为粘胶纱线半径的46%;粘胶纱线的相对抗弯刚度为2.0×10-4gf·cm·tex-1,断裂强度为13cN/tex。The measured count of the yarn produced is 16S, and the measured twist coefficient is 191; as shown in Figure 5, the average diameter of the viscose yarn is 253 μm, an increase of 10% compared to Comparative Sample 4; the axial direction of the fiber in the viscose yarn The radius of the spiral trajectory is 9% of the diameter of the viscose yarn, and the central range of the radial packing density of the fibers in the viscose yarn is 46% of the radius of the viscose yarn; the relative bending stiffness of the viscose yarn is 2.0×10 -4 gf·cm·tex -1 , breaking strength is 13cN/tex.

实施例5Example 5

一种改变纱线结构的纺纱方法,纱线的设计支数为16S,设计捻系数为270,具体纺制过程如下:A spinning method that changes the yarn structure. The design count of the yarn is 16S and the design twist coefficient is 270. The specific spinning process is as follows:

在细纱机的前罗拉至导纱钩之间依次设置第一圆带和第二圆带,材质为羊毛的粗纱经牵伸后形成的纱线须条自前罗拉输出,先向下倾斜15°绕过第一圆带下方形成纺纱段Ⅰ,后绕过第二圆带上方形成纺纱段Ⅱ,经导纱钩后卷绕得到羊毛纱线;A first round belt and a second round belt are arranged in sequence between the front roller of the spinning machine and the yarn guide hook. The yarn sliver formed by drawing the roving made of wool is output from the front roller and is first wound at a downward angle of 15°. Pass under the first round belt to form the spinning section I, then go around the top of the second round belt to form the spinning section II, and then wind through the yarn guide hook to obtain the wool yarn;

第一圆带和第二圆带横向移动,分别对接触到的纱线须条施加切向摩擦力;羊毛纱线为Z捻,第一圆带水平向左移动,第二圆带水平向右移动;The first round belt and the second round belt move laterally, exerting tangential friction on the contacted yarn strips respectively; the wool yarn is Z-twisted, the first round belt moves horizontally to the left, and the second round belt moves horizontally to the right move;

粗纱的捻系数为104,定量为6g/10m;纱线须条与第一圆带接触形成的包围角θ1为45°,纱线须条与第二圆带接触形成的包围角θ2为60°;第一圆带与前罗拉中心距为30mm,第二圆带与前罗拉中心距为38mm,第一圆带与第二圆带之间的中心距为8mm,第一圆带和第二圆带的速度独立控制,第一圆带速度与前罗拉线速比值为12,第二圆带速度与前罗拉线速比值为4,第一圆带和第二圆带的线速比为3;The twist coefficient of the roving is 104, and the basis weight is 6g/10m; the wrapping angle θ 1 formed by the contact between the yarn strips and the first round belt is 45°, and the wrapping angle θ 2 formed by the contact between the yarn strips and the second round belt is 60°; the center distance between the first round belt and the front roller is 30mm, the center distance between the second round belt and the front roller is 38mm, the center distance between the first round belt and the second round belt is 8mm, the center distance between the first round belt and the The speeds of the two round belts are independently controlled. The ratio of the speed of the first round belt to the line speed of the front roller is 12. The ratio of the speed of the second round belt to the line speed of the front roller is 4. The line speed ratio of the first round belt and the second round belt is 3;

制备对比样5,对比样5的制备方法基本同上述羊毛纱线,不同之处仅在于材质为羊毛的粗纱经牵伸后形成的纱线须条自前罗拉输出后直接喂入导纱钩后卷绕;制得的对比样5的平均直径为241μm;Prepare Comparative Sample 5. The preparation method of Comparative Sample 5 is basically the same as the above-mentioned wool yarn. The only difference is that the yarn sliver formed by drawing the roving made of wool is directly fed to the yarn guide hook after being output from the front roller and then rolled. Winding; the average diameter of the prepared comparative sample 5 is 241 μm;

制得的羊毛纱线的实测支数为16S,实测捻系数为276;羊毛纱线平均直径为270μm,较对比样5增加12%;羊毛纱线中纤维的轴向螺旋轨迹半径为羊毛纱线直径的11%,羊毛纱线中纤维的径向堆砌密度中心化范围为羊毛纱线半径的50%;羊毛纱线的相对抗弯刚度为1.2×10-4gf·cm·tex-1,断裂强度为8cN/tex。The measured count of the prepared wool yarn is 16S, and the measured twist coefficient is 276; the average diameter of the wool yarn is 270 μm, an increase of 12% compared with Comparative Sample 5; the axial spiral trajectory radius of the fibers in the wool yarn is 11% of the diameter, the central range of the radial packing density of the fibers in the wool yarn is 50% of the radius of the wool yarn; the relative bending stiffness of the wool yarn is 1.2×10 -4 gf·cm·tex -1 , breaking Strength is 8cN/tex.

实施例6Example 6

一种改变纱线结构的纺纱方法,纱线的设计支数为32S,设计捻系数为270,具体纺制过程如下:A spinning method that changes the yarn structure. The design count of the yarn is 32S and the design twist coefficient is 270. The specific spinning process is as follows:

在细纱机的前罗拉至导纱钩之间依次设置第一圆带和第二圆带,材质为锦纶的粗纱经牵伸后形成的纱线须条自前罗拉输出,先向下倾斜20°绕过第一圆带下方形成纺纱段Ⅰ,后绕过第二圆带上方形成纺纱段Ⅱ,经导纱钩后卷绕得到锦纶纱线;A first round belt and a second round belt are arranged in sequence between the front roller of the spinning machine and the yarn guide hook. The yarn strips formed by drawing the roving made of nylon are output from the front roller and are first wound at a downward angle of 20°. Pass under the first round belt to form spinning section I, then go around the top of the second round belt to form spinning section II, and then wind through the yarn guide hook to obtain nylon yarn;

第一圆带和第二圆带横向移动,分别对接触到的纱线须条施加切向摩擦力;锦纶纱线为Z捻,第一圆带水平向左移动,第二圆带水平向右移动;The first round belt and the second round belt move laterally, exerting tangential friction on the contacted yarn strips respectively; the nylon yarn is Z-twisted, the first round belt moves horizontally to the left, and the second round belt moves horizontally to the right move;

粗纱的捻系数为104,定量为4.8g/10m;纱线须条与第一圆带接触形成的包围角θ1为50°,纱线须条与第二圆带接触形成的包围角θ2为70°;第一圆带与前罗拉中心距为35mm,第二圆带与前罗拉中心距为45mm,第一圆带与第二圆带之间的中心距为10mm,第一圆带和第二圆带的速度独立控制,第一圆带速度与前罗拉线速比值为12,第二圆带速度与前罗拉线速比值为4,第一圆带和第二圆带的线速比为3;The twist coefficient of the roving is 104, and the basis weight is 4.8g/10m; the wrapping angle θ 1 formed by the contact between the yarn strips and the first round belt is 50°, and the wrapping angle θ 2 formed by the contact between the yarn strips and the second round belt. is 70°; the center distance between the first round belt and the front roller is 35mm, the center distance between the second round belt and the front roller is 45mm, the center distance between the first round belt and the second round belt is 10mm, the first round belt and The speed of the second round belt is independently controlled. The ratio of the speed of the first round belt to the line speed of the front roller is 12. The ratio of the speed of the second round belt to the line speed of the front roller is 4. The line speed ratio of the first round belt and the second round belt is 3;

制备对比样6,对比样6的制备方法基本同上述锦纶锦纶纱线,不同之处仅在于材质为锦纶的粗纱经牵伸后形成的纱线须条自前罗拉输出后直接喂入导纱钩后卷绕;制得的对比样6的平均直径为129μm;Prepare Comparative Sample 6. The preparation method of Comparative Sample 6 is basically the same as the above-mentioned nylon nylon yarn. The only difference is that the yarn strips formed by drawing the roving made of nylon are directly fed to the yarn guide hook after being output from the front roller. Winding; the average diameter of the prepared comparative sample 6 is 129 μm;

制得的锦纶纱线的实测支数为32S,实测捻系数为280;锦纶纱线平均直径为139μm,较对比样6增加8%;锦纶纱线中纤维的轴向螺旋轨迹半径为锦纶纱线直径的6%,锦纶纱线中纤维的径向堆砌密度中心化范围为锦纶纱线半径的46%;锦纶纱线的相对抗弯刚度为1.4×10-4gf·cm·tex-1,断裂强度为23cN/tex。The measured count of the prepared nylon yarn is 32S, and the measured twist coefficient is 280; the average diameter of the nylon yarn is 139 μm, an increase of 8% compared with Comparative Sample 6; the axial spiral trajectory radius of the fiber in the nylon yarn is nylon yarn 6% of the diameter, the central range of the radial packing density of the fibers in the nylon yarn is 46% of the radius of the nylon yarn; the relative bending stiffness of the nylon yarn is 1.4×10 -4 gf·cm·tex -1 , breaking Strength is 23cN/tex.

实施例7Example 7

一种改变纱线结构的纺纱方法,纱线的设计支数为32S,设计捻系数为270,具体纺制过程如下:A spinning method that changes the yarn structure. The design count of the yarn is 32S and the design twist coefficient is 270. The specific spinning process is as follows:

在细纱机的前罗拉至导纱钩之间依次设置第一圆带和第二圆带,材质为羊毛和棉(质量比20/80)的粗纱经牵伸后形成的纱线须条自前罗拉输出,先向下倾斜20°绕过第一圆带下方形成纺纱段Ⅰ,后绕过第二圆带上方形成纺纱段Ⅱ,经导纱钩后卷绕得到羊毛/棉混纺纱线;A first round belt and a second round belt are arranged in sequence between the front roller of the spinning machine and the yarn guide hook. The yarn strips formed after drafting the roving made of wool and cotton (mass ratio 20/80) are drawn from the front roller. Output, first tilt downward at 20° and go around the bottom of the first round belt to form the spinning section I, then go around the top of the second round belt to form the spinning section II, and then wind through the yarn guide hook to obtain the wool/cotton blended yarn;

第一圆带和第二圆带横向移动,分别对接触到的纱线须条施加切向摩擦力;羊毛/棉混纺纱线为Z捻,第一圆带水平向左移动,第二圆带水平向右移动;The first round belt and the second round belt move laterally, exerting tangential friction on the contacted yarn strips respectively; the wool/cotton blended yarn is Z-twisted, the first round belt moves horizontally to the left, and the second round belt Move horizontally to the right;

粗纱的捻系数为105,定量为4.5g/10m;纱线须条与第一圆带接触形成的包围角θ1为50°,纱线须条与第二圆带接触形成的包围角θ2为70°;第一圆带与前罗拉中心距为35mm,第二圆带与前罗拉中心距为45mm,第一圆带与第二圆带之间的中心距为10mm,第一圆带和第二圆带的速度独立控制,第一圆带速度与前罗拉线速比值为10,第二圆带速度与前罗拉线速比值为3,第一圆带和第二圆带的线速比为3.3;The twist coefficient of the roving is 105, and the basis weight is 4.5g/10m; the wrapping angle θ 1 formed by the contact between the yarn strips and the first round belt is 50°, and the wrapping angle θ 2 formed by the contact between the yarn strips and the second round belt. is 70°; the center distance between the first round belt and the front roller is 35mm, the center distance between the second round belt and the front roller is 45mm, the center distance between the first round belt and the second round belt is 10mm, the first round belt and The speed of the second round belt is independently controlled. The ratio of the speed of the first round belt to the line speed of the front roller is 10. The ratio of the speed of the second round belt to the line speed of the front roller is 3. The line speed ratio of the first round belt and the second round belt is 3.3;

制备对比样7,对比样7的制备方法基本同上述羊毛/棉混纺羊毛/棉混纺纱线,不同之处仅在于材质为羊毛和棉(质量比20/80)的粗纱经牵伸后形成的纱线须条自前罗拉输出后直接喂入导纱钩后卷绕;制得的对比样7的平均直径为160μm;Prepare Comparative Sample 7. The preparation method of Comparative Sample 7 is basically the same as the above-mentioned wool/cotton blended wool/cotton blended yarn. The only difference is that the roving made of wool and cotton (mass ratio 20/80) is formed after drafting. The yarn strips are directly fed into the yarn guide hook after being output from the front roller and then wound; the average diameter of the prepared comparative sample 7 is 160 μm;

制得的羊毛/棉纱线的实测支数为32S,实测捻系数为282;羊毛/棉纱线平均直径为170μm,较对比样7增加6%;羊毛/棉纱线中纤维的轴向螺旋轨迹半径为羊毛/棉纱线直径的5%,羊毛/棉纱线中纤维的径向堆砌密度中心化范围为羊毛/棉纱线半径的43%;羊毛/棉纱线的相对抗弯刚度为1.8×10-4gf·cm·tex-1,断裂强度为12cN/tex。The measured count of the prepared wool/cotton yarn is 32S, and the measured twist coefficient is 282; the average diameter of the wool/cotton yarn is 170 μm, an increase of 6% compared with the control sample 7; the axial spiral trajectory radius of the fibers in the wool/cotton yarn is 5% of the diameter of the wool/cotton yarn, the central range of the radial packing density of the fibers in the wool/cotton yarn is 43% of the radius of the wool/cotton yarn; the relative bending stiffness of the wool/cotton yarn is 1.8×10 -4 gf· cm·tex -1 , breaking strength is 12cN/tex.

实施例8Example 8

一种改变纱线结构的纺纱方法,纱线的设计支数为32S,设计捻系数为270,具体纺制过程如下:A spinning method that changes the yarn structure. The design count of the yarn is 32S and the design twist coefficient is 270. The specific spinning process is as follows:

在细纱机的前罗拉至导纱钩之间依次设置第一圆带和第二圆带,材质为锦纶和棉(质量比50/50)的粗纱经牵伸后形成的纱线须条自前罗拉输出,先向下倾斜30°绕过第一圆带下方形成纺纱段Ⅰ,后绕过第二圆带上方形成纺纱段Ⅱ,经导纱钩后卷绕得到锦纶/棉混纺纱线;A first round belt and a second round belt are arranged in sequence between the front roller of the spinning machine and the yarn guide hook. The yarn strips formed after drafting the roving made of nylon and cotton (mass ratio 50/50) are drawn from the front roller. Output, first tilt downward at 30° and go around the bottom of the first round belt to form the spinning section I, then go around the top of the second round belt to form the spinning section II, and then wind through the yarn guide hook to obtain the nylon/cotton blended yarn;

第一圆带和第二圆带横向移动,分别对接触到的纱线须条施加切向摩擦力;锦纶/棉混纺纱线为Z捻,第一圆带水平向左移动,第二圆带水平向右移动;The first round belt and the second round belt move laterally, exerting tangential friction on the contacted yarn strips respectively; the nylon/cotton blended yarn is Z-twisted, the first round belt moves horizontally to the left, and the second round belt Move horizontally to the right;

粗纱的捻系数为105,定量为4.5g/10m;纱线须条与第一圆带接触形成的包围角θ1为60°,纱线须条与第二圆带接触形成的包围角θ2为75°;第一圆带与前罗拉中心距为40mm,第二圆带与前罗拉中心距为52mm,第一圆带与第二圆带之间的中心距为12mm,第一圆带和第二圆带的速度独立控制,第一圆带速度与前罗拉线速比值为6,第二圆带速度与前罗拉线速比值为2,第一圆带和第二圆带的线速比为3;The twist coefficient of the roving is 105, and the basis weight is 4.5g/10m; the wrapping angle θ 1 formed by the contact between the yarn strips and the first round belt is 60°, and the wrapping angle θ 2 formed by the contact between the yarn strips and the second round belt. is 75°; the center distance between the first round belt and the front roller is 40mm, the center distance between the second round belt and the front roller is 52mm, the center distance between the first round belt and the second round belt is 12mm, the first round belt and The speed of the second round belt is independently controlled. The ratio of the speed of the first round belt to the line speed of the front roller is 6. The ratio of the speed of the second round belt to the line speed of the front roller is 2. The line speed ratio of the first round belt and the second round belt is 3;

制备对比样8,对比样8的制备方法基本同上述锦纶/棉混纺纱线,不同之处仅在于材质为锦纶和棉(质量比50/50)的粗纱经牵伸后形成的纱线须条自前罗拉输出后直接喂入导纱钩后卷绕;制得的对比样8的平均直径为171μm;Prepare comparative sample 8. The preparation method of comparative sample 8 is basically the same as the above-mentioned nylon/cotton blended yarn. The only difference lies in the yarn strips formed after drafting the rovings of nylon and cotton (mass ratio 50/50). After being output from the front roller, it is directly fed into the yarn guide hook and then wound; the average diameter of the prepared comparative sample 8 is 171 μm;

制得的纱线的实测支数为32S,实测捻系数为280;锦纶/棉混纺纱线平均直径为180μm,较对比样8增加5%;锦纶/棉混纺纱线中纤维的轴向螺旋轨迹半径为纱线直径的5%,锦纶/棉混纺纱线中纤维的径向堆砌密度中心化范围为锦纶/棉混纺纱线半径的45%;锦纶/棉混纺纱线的相对抗弯刚度为1.7×10-4gf·cm·tex-1,断裂强度为18cN/tex。The measured count of the yarn produced is 32S, and the measured twist coefficient is 280; the average diameter of the nylon/cotton blended yarn is 180 μm, an increase of 5% compared with Comparative Sample 8; the axial spiral trajectory of the fibers in the nylon/cotton blended yarn The radius is 5% of the yarn diameter, and the central range of the radial packing density of the fibers in the nylon/cotton blended yarn is 45% of the radius of the nylon/cotton blended yarn; the relative bending stiffness of the nylon/cotton blended yarn is 1.7 ×10 -4 gf·cm·tex -1 , breaking strength is 18cN/tex.

实施例9Example 9

一种改变纱线结构的纺纱方法,纱线的设计支数为32S,设计捻系数为270,具体纺制过程如下:A spinning method that changes the yarn structure. The design count of the yarn is 32S and the design twist coefficient is 270. The specific spinning process is as follows:

在细纱机的前罗拉至导纱钩之间依次设置第一圆带和第二圆带,材质为涤纶的粗纱经牵伸后形成的纱线须条自前罗拉输出,先向下倾斜30°绕过第一圆带下方形成纺纱段Ⅰ,后绕过第二圆带上方形成纺纱段Ⅱ,经导纱钩后卷绕得到涤纶纱线;A first round belt and a second round belt are arranged in sequence between the front roller of the spinning machine and the yarn guide hook. The yarn sliver formed by drawing the roving made of polyester is output from the front roller and is first wound at a downward angle of 30°. Pass under the first round belt to form spinning section I, then go around the top of the second round belt to form spinning section II, and then wind through the yarn guide hook to obtain polyester yarn;

第一圆带和第二圆带横向移动,分别对接触到的纱线须条施加切向摩擦力;涤纶纱线为S捻,第一圆带水平向右移动,第二圆带水平向左移动;The first round belt and the second round belt move laterally, exerting tangential friction on the contacted yarn strips respectively; the polyester yarn is S-twisted, the first round belt moves horizontally to the right, and the second round belt moves horizontally to the left move;

粗纱的捻系数为105,定量为4g/10m;纱线须条与第一圆带接触形成的包围角θ1为60°,纱线须条与第二圆带接触形成的包围角θ2为75°;第一圆带与前罗拉中心距为44mm,第二圆带与前罗拉中心距为60mm,第一圆带与第二圆带之间的中心距为16mm,第一圆带和第二圆带的速度独立控制,第一圆带速度与前罗拉线速比值为1,第二圆带速度与前罗拉线速比值为0.7,第一圆带和第二圆带的线速比为1.43;The twist coefficient of the roving is 105, and the basis weight is 4g/10m; the wrapping angle θ 1 formed by the contact between the yarn strips and the first round belt is 60°, and the wrapping angle θ 2 formed by the contact between the yarn strips and the second round belt is 75°; the center distance between the first round belt and the front roller is 44mm, the center distance between the second round belt and the front roller is 60mm, the center distance between the first round belt and the second round belt is 16mm, the center distance between the first round belt and the The speeds of the two round belts are independently controlled. The ratio of the speed of the first round belt to the line speed of the front roller is 1. The ratio of the speed of the second round belt to the line speed of the front roller is 0.7. The line speed ratio of the first round belt to the second round belt is 1.43;

制备对比样9,对比样9的制备方法基本同上述涤纶纱线,不同之处仅在于材质为涤纶的粗纱经牵伸后形成的纱线须条自前罗拉输出后直接喂入导纱钩后卷绕;制得的对比样9的平均直径为172μm;Comparative sample 9 is prepared. The preparation method of comparative sample 9 is basically the same as the above-mentioned polyester yarn. The only difference is that the yarn sliver formed by drawing the roving made of polyester is directly fed to the yarn guide hook after being output from the front roller and then rolled. Winding; the average diameter of the prepared comparative sample 9 is 172 μm;

制得的纱线的实测支数为32S,实测捻系数为295;涤纶纱线平均直径为181μm,较对比样9增加5%;涤纶纱线中纤维的轴向螺旋轨迹半径为纱线直径的3%,涤纶纱线中纤维的径向堆砌密度中心化范围为纱线半径的45%;涤纶纱线的相对抗弯刚度为5.7×10-4gf·cm·tex-1,断裂强度为27cN/tex。The measured count of the yarn produced is 32S, and the measured twist coefficient is 295; the average diameter of the polyester yarn is 181 μm, an increase of 5% compared with Comparative Sample 9; the axial spiral trajectory radius of the fiber in the polyester yarn is 100% of the yarn diameter. 3%, the radial packing density of the fibers in the polyester yarn is centered at 45% of the yarn radius; the relative bending stiffness of the polyester yarn is 5.7×10 -4 gf·cm·tex -1 and the breaking strength is 27cN /tex.

如图7所示,同设计捻度下,涤纶纱线表面纤维的倾斜程度大于对比样,即涤纶纱线实际捻系数增加,这使得由涤纶纱线制备的布面纹路清晰。As shown in Figure 7, under the same design twist, the degree of inclination of the surface fibers of the polyester yarn is greater than that of the comparison sample, that is, the actual twist coefficient of the polyester yarn increases, which makes the texture of the cloth surface prepared by the polyester yarn clear.

图8为本发明纱线制备机理示意图,应当知晓,除上述各实施例中由第一圆带与第二圆带分别对接触到的纱线须条施加切向摩擦力外,其他能够实现对纱线须条施加切向摩擦力的方式也在本发明的保护范围内。Figure 8 is a schematic diagram of the yarn preparation mechanism of the present invention. It should be noted that in addition to the first round belt and the second round belt respectively exerting tangential friction on the contacted yarn strips in the above embodiments, other methods can be achieved. The manner in which the yarn strips exert tangential friction is also within the scope of the present invention.

Claims (9)

1.一种改变纱线结构的纺纱方法,其特征在于:在细纱机的前罗拉至导纱钩之间依次设置第一圆带和第二圆带,粗纱经牵伸后形成的纱线须条自前罗拉输出,先向下倾斜角度Φ绕过第一圆带下方形成纺纱段Ⅰ,后绕过第二圆带上方形成纺纱段Ⅱ,经导纱钩后卷绕得到纱线;1. A spinning method that changes the yarn structure, characterized in that: a first round belt and a second round belt are sequentially arranged between the front roller of the spinning frame and the yarn guide hook, and the yarn formed after the roving is drafted The slivers are output from the front roller, first inclined downward at an angle Φ and bypassing the bottom of the first round belt to form the spinning section I, and then bypassing the top of the second round belt to form the spinning section II. The yarn is then wound through the yarn guide hook; 第一圆带和第二圆带横向移动,分别对接触到的纱线须条施加切向摩擦力;The first round belt and the second round belt move laterally and exert tangential friction force on the yarn whiskers in contact respectively; 第一圆带和第二圆带的线速比为1.5~8.5;The linear speed ratio between the first round belt and the second round belt is 1.5~8.5; Φ为15°~30°,纱线须条与第一圆带接触形成的包围角θ1为45°~60°,纱线须条与第二圆带接触形成的包围角θ2为60°~75°,且θ12Φ is 15° to 30°, the wrapping angle θ 1 formed by the contact between the yarn whiskers and the first round belt is 45° to 60°, and the wrapping angle θ 2 formed by the contact between the yarn whiskers and the second round belt is 60°. ~75°, and θ 12 . 2.根据权利要求1所述的一种改变纱线结构的纺纱方法,其特征在于,当纱线为Z捻时,第一圆带水平向左移动,第二圆带水平向右移动;当纱线为S捻时,第一圆带水平向右移动,第二圆带水平向左移动。2. A spinning method that changes the yarn structure according to claim 1, characterized in that when the yarn is Z-twisted, the first round belt moves horizontally to the left, and the second round belt moves horizontally to the right; When the yarn is S-twisted, the first round belt moves horizontally to the right, and the second round belt moves horizontally to the left. 3.根据权利要求1所述的一种改变纱线结构的纺纱方法,其特征在于,第一圆带和第二圆带的速度独立控制。3. A spinning method for changing yarn structure according to claim 1, characterized in that the speeds of the first round belt and the second round belt are independently controlled. 4.根据权利要求1所述的一种改变纱线结构的纺纱方法,其特征在于,纱线须条材质为天然纤维及人造纤维中的一种以上。4. A spinning method for changing the yarn structure according to claim 1, characterized in that the material of the yarn strips is at least one of natural fibers and artificial fibers. 5.根据权利要求1所述的一种改变纱线结构的纺纱方法,其特征在于,粗纱的捻系数为102~105,定量为4~10g/10m。5. A spinning method for changing yarn structure according to claim 1, characterized in that the twist coefficient of the roving is 102-105, and the basis weight is 4-10g/10m. 6.根据权利要求1所述的一种改变纱线结构的纺纱方法,其特征在于,第一圆带与前罗拉的中心距为5~44mm,第二圆带与前罗拉的中心距为9~60mm,第一圆带与第二圆带之间的中心距为4~16mm,第一圆带速度与前罗拉线速比值为1~21,第二圆带速度与前罗拉线速比值为0.7~14。6. A spinning method that changes the yarn structure according to claim 1, characterized in that the center distance between the first round belt and the front roller is 5 to 44 mm, and the center distance between the second round belt and the front roller is 5 to 44 mm. 9~60mm, the center distance between the first round belt and the second round belt is 4~16mm, the ratio of the speed of the first round belt to the line speed of the front roller is 1~21, the ratio of the speed of the second round belt to the line speed of the front roller is It is 0.7~14. 7.根据权利要求1~6任一项所述的一种改变纱线结构的纺纱方法,其特征在于,纱线的设计捻系数为190~270,实测捻系数为191~295;7. A spinning method for changing yarn structure according to any one of claims 1 to 6, characterized in that the designed twist coefficient of the yarn is 190-270, and the measured twist coefficient is 191-295; 纱线中纤维的轴向螺旋轨迹半径为纱线直径的3%~20%,纱线中纤维的径向堆砌密度中心化范围为纱线半径的45%~55%。The axial spiral trajectory radius of the fibers in the yarn is 3% to 20% of the yarn diameter, and the radial packing density of the fibers in the yarn is centered in the range of 45% to 55% of the yarn radius. 8.根据权利要求7所述的一种改变纱线结构的纺纱方法,其特征在于,纱线为纯纺纱、混纺纱或复合纱,纱线的设计支数为6S~32S。8. A spinning method for changing the yarn structure according to claim 7, characterized in that the yarn is pure spinning yarn, blended yarn or composite yarn, and the designed count of the yarn is 6S to 32S. 9.根据权利要求8所述的一种改变纱线结构的纺纱方法纱线,其特征在于,当纱线的材质为棉时,相对抗弯刚度为1.7×10-4~3.5×10-4gf·cm·tex-1,断裂强度为12.5~16.5cN/tex;当纱线的材质为麻时,相对抗弯刚度为4.5×10-4~9.5×10-4gf·cm·tex-1,断裂强度为16~26cN/tex;当纱线的材质为蚕丝时,相对抗弯刚度为2.5×10-4~3.1×10- 4gf·cm·tex-1,断裂强度为18~21cN/tex;当纱线的材质为粘胶时,相对抗弯刚度为2.0×10-4~3.1×10-4gf·cm·tex-1,断裂强度为12~14cN/tex;当纱线的材质为羊毛时,相对抗弯刚度为1.1×10-4~1.5×10-4gf·cm·tex-1,断裂强度为6~9cN/tex;当纱线的材质为锦纶时,相对抗弯刚度为1.3×10-4~1.5×10-4gf·cm·tex-1,断裂强度为23~35cN/tex;当纱线的材质为羊毛/棉混纺时,相对抗弯刚度为1.1×10-4~3.5×10-4gf·cm·tex-1,断裂强度为10~13cN/tex;当纱线的材质为锦纶/棉混纺时,相对抗弯刚度为1.3×10-4~3.5×10-4gf·cm·tex-1,断裂强度为18~25cN/tex;当纱线的材质为涤纶时,相对抗弯刚度为5.5×10-4~5.8×10-4gf·cm·tex-1,断裂强度为25~30cN/tex。9. A spinning method yarn that changes the yarn structure according to claim 8, characterized in that when the material of the yarn is cotton, the relative bending stiffness is 1.7×10 -4 ~ 3.5×10 - 4 gf·cm·tex -1 , breaking strength is 12.5~16.5cN/tex; when the yarn material is hemp, the relative bending stiffness is 4.5×10 -4 ~9.5×10 -4 gf·cm·tex - 1 , the breaking strength is 16~26cN/tex; when the yarn material is silk, the relative bending stiffness is 2.5×10 -4 ~3.1× 10 -4 gf ·cm·tex -1 , and the breaking strength is 18~21cN /tex; when the yarn material is viscose, the relative bending stiffness is 2.0×10 -4 ~ 3.1×10 -4 gf·cm·tex -1 and the breaking strength is 12~14cN/tex; when the yarn When the material is wool, the relative bending stiffness is 1.1×10 -4 ~ 1.5×10 -4 gf·cm·tex -1 and the breaking strength is 6 ~ 9cN/tex; when the yarn material is nylon, the relative bending stiffness is The stiffness is 1.3×10 -4 ~ 1.5×10 -4 gf·cm·tex -1 and the breaking strength is 23~35cN/tex; when the yarn material is wool/cotton blend, the relative bending stiffness is 1.1×10 -4 ~3.5×10 -4 gf·cm·tex -1 , breaking strength is 10~13cN/tex; when the yarn material is nylon/cotton blend, the relative bending stiffness is 1.3×10 -4 ~3.5× 10 -4 gf·cm·tex -1 , breaking strength is 18~25cN/tex; when the yarn material is polyester, the relative bending stiffness is 5.5×10 -4 ~5.8×10 -4 gf·cm·tex -1 , breaking strength is 25~30cN/tex.
CN202311211057.1A 2023-09-19 2023-09-19 Spinning method for changing yarn structure Pending CN117265713A (en)

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