Implantable multi-channel multi-layer staple fiber covering yarn and spinning method thereof

Abstract

The invention is applicable to the technical field of spinning, and provides an implantable multichannel multilayer staple fiber covering yarn, the covering yarn is of an n-layer coated composite yarn structure, n is greater than or equal to 3, the inner layer of the composite yarn structure is a supporting staple fiber material, the middle layer of the composite yarn structure is a functional fiber raw material, and the outer layer of the composite yarn structure is a skin-friendly functional fiber raw material. The invention further provides a spinning method of the implantable multi-channel multi-layer staple fiber covering yarn. The multi-channel feeding function of different spinning procedures is fully exerted, stable composite yarn structures such as a multilayer sandwich structure and a four-layer sandwich structure are formed, the limitation of a single-layer or double-layer structure of the existing short fiber core-spun yarn is broken through, the yarn structure can realize the coating effect of multiple layers of short fibers inside and outside, and the yarn structure has the advantages of being simple in structure and convenient to use. The structure that various fibers in traditional yarn are mutually crossed and disordered is broken through, the mode of self-use combination and distribution of various fibers is achieved, superposition and free combination of various functions of the yarn are achieved, and extremely high commercial value and market application prospects are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of spinning, and in particular relates to an implantable multi-channel multi-layer staple core-spun yarn and a spinning method thereof. Background Art

[0002] In recent years, with the advancement of textile technology and the vigorous development of the sports and health industry, contemporary consumers pay more attention to the comfort and personalization of clothing, and have higher requirements for the quality and function of textiles and yarns, such as multi-layer structural fabrics or multi-component composite yarns. Based on the traditional ring spinning technology, many new spinning technologies have emerged, which have enriched the spinning methods and improved the spinning quality to a certain extent. For example, compact spinning improves the hairiness quality of single roving yarn through negative pressure suction and other methods; Siro spinning achieves the effect of double roving twist spinning on the basis of single roving; Siro compact spinning combines the advantages of Siro spinning and compact spinning, and is a common spinning technology for producing differentiated fibers; Sirofil spinning introduces filaments, combined with single roving and single filament, to form a core-wrapped or wrapped structure; Siro filament composite spinning upgrades Sirofil spinning, and prepares core-wrapped or double-wrapped structure yarns through single roving and double filaments; embedded spinning breaks through the limit of the number of yarns, and forms a three-wrapped structure yarn by feeding two rovings and two filaments in the spinning process.

[0003] However, the above spinning technology is still limited to the upgrading and transformation of the spinning process. The single-layer or double-layer yarn structure formed by feeding multiple yarns cannot meet people's demand for diversified functionality of yarns. For example, although the embedded spinning technology can achieve the spinning effect of two rovings and two filaments, in order to achieve the ratio of different functional fibers, it can only work on the mixing degree of single-layer or double-layer fibers, and it is also easily affected by the dyeing and mechanical property differences of the fibers. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide an implantable multi-channel multi-layer staple fiber core-spun yarn, aiming to solve the problems raised in the above-mentioned background technology.

[0005] An embodiment of the present invention is implemented as follows: an implantable multi-channel multi-layer staple core-spun yarn, wherein the core-spun yarn is a composite yarn structure with n layers of coating, wherein n≥3, the inner layer of the composite yarn structure is a supporting staple fiber material, the middle layer is a functional fiber raw material, and the outer layer is a skin-friendly functional fiber raw material.

[0006] Preferably, n=3, the first layer of the composite yarn structure is an inner layer, the second layer is a middle layer, and the third layer is an outer layer.

[0007] Preferably, n=4, the first layer of the composite yarn structure is an inner layer, the second layer and the third layer are middle layers, and the fourth layer is an outer layer.

[0008] Another object of an embodiment of the present invention is to provide a spinning method of an implantable multi-channel multi-layer staple core-spun yarn, comprising the following steps:

[0009] (1) subjecting the first layer of fiber raw materials to the processes of cleaning, carding, drawing, and roving to obtain the first layer of roving;

[0010] (2) The second layer of fiber raw materials is subjected to the processes of cleaning, carding, and drawing to obtain the second layer of sliver. In the roving process, the first layer of roving and the second layer of sliver are simultaneously fed into the drafting device, the first layer of roving is completely covered by the second layer of sliver, passes through rollers and aprons, is output by the front roller, is twisted, and is led to the bobbin to be wound into two layers of roving, which is then subjected to the spun yarn process to be made into two layers of bobbins, and then subjected to the bobbin winding process to be made into two layers of bobbins;

[0011] (3) The third layer of fiber raw material is subjected to the steps of cleaning, carding, drawing and roving to obtain the third layer of roving. In the spinning step, the third layer of roving and the two layers of bobbin yarn spun in step (2) are simultaneously fed into the drafting device and converged at the front jaw. The two layers of bobbin yarn are completely covered by the third layer of roving, output through the front roller, passed through the wire ring, twisted and wound onto the bobbin to form a three-layer bobbin yarn, and then subjected to the winding step to form a three-layer bobbin yarn.

[0012] Another object of an embodiment of the present invention is to provide a spinning method of an implantable multi-channel multi-layer staple core-spun yarn, comprising the following steps:

[0013] (1) subjecting the first layer of fiber raw materials to the processes of cleaning, carding, drawing, and roving to obtain the first layer of roving;

[0014] (2) The second layer of fiber raw materials is subjected to the processes of cleaning and combing to obtain the second layer of semi-ripened slivers. In the drawing process, the first layer of roving and the second layer of semi-ripened slivers are simultaneously fed into the drafting device, the first layer of roving is completely covered by the second layer of semi-ripened slivers, and the roving is agglomerated into slivers through rubber rollers, drafting rollers, clustering tubes and pressure rollers. The double-layer slivers are output in the sliver can through a coiler, and are subjected to the roving process to obtain double-layer rovings;

[0015] (3) The third layer of fiber raw materials is subjected to the steps of cleaning, carding, and drawing to obtain the third layer of sliver. In the roving step, the double-layer roving spun in step (2) and the third layer of sliver are simultaneously fed into the drafting device, the double-layer roving is completely covered by the third layer of sliver, passes through rollers and aprons, is output by the front roller, is twisted, and is led to a bobbin to be wound into a three-layer roving, which is then subjected to the spinning step to be made into a three-layer cob yarn, and then subjected to the winding step to be made into a three-layer bobbin yarn;

[0016] (4) The fourth layer of fiber raw material is subjected to the steps of cleaning, carding, drawing and roving to obtain the fourth layer of roving. In the spinning step, the fourth layer of roving and the three-layer bobbin yarn spun in step (3) are simultaneously fed into the drafting device and converged at the front jaw. The three-layer bobbin yarn is completely covered by the fourth layer of roving, outputted through the front roller, passed through the wire ring, twisted and wound onto the bobbin to form the four-layer bobbin yarn, and then subjected to the winding step to form the four-layer bobbin yarn.

[0017] An implantable multi-channel multi-layer staple core-spun yarn provided by an embodiment of the present invention breaks the barriers of feeding products in processes such as drawing, roving, and spinning, gives full play to the multi-channel feeding function of different spinning processes, forms a stable multi-layer sandwich, four-layer composite yarn structure, and breaks the limitations of the single-layer or double-layer structure of the existing staple core-spun yarn. The yarn structure can not only achieve the coating effect of multiple layers of staple fibers inside and outside, but also break through the structure of various types of fibers in the traditional yarn that are crossed and disordered, realize the mode of self-use combination and distribution of various types of fibers, and realize the superposition and free combination of various functions of the yarn. According to the difference in fiber performance, different staple fibers can be reasonably configured in each circle of the core-spun yarn, and the advantages of various fibers can be effectively integrated, laying the foundation for preparing differentiated yarns with multiple functions, promoting technological progress and product innovation in the spinning industry to a certain extent, and developing more abundant yarn products, thereby enhancing the market competitiveness of differentiated yarns. Therefore, in the long run, it has extremely high commercial value and market application prospects, and is widely used in outdoor sports, medical health, military aviation and other fields;

[0018] The inner layer can be made of strong and highly elastic short fibers as a strong support for the overall yarn. The middle layer can be made of single-component or multi-component functional fiber raw materials with excellent properties such as warmth retention and antibacterial properties, so as to meet the diversified needs of the spinning market such as antibacterial and mildew-proof, high elasticity and high strength, infrared warmth retention, etc. required for high-end underwear or professional sportswear. The outer layer is located on the outer surface of the yarn and is in direct contact with human skin. In the development and design of textile products, it is necessary to pursue a more comfortable touch experience. Functional fiber raw materials such as soft and skin-friendly, moisture-absorbing and breathable, as well as short fiber raw materials that can achieve cotton, cashmere, and silk touch can be selected, so as to meet the needs of close-fitting wearing such as softness, comfort, moisture absorption and quick drying, and cold and warm feeling required for high-end underwear or professional sportswear. In terms of the use of short fibers, the embodiment of the present invention improves the spinnability and mixing uniformity between different short fibers, and the multi-layer coating is more compact to a certain extent, effectively avoiding the shortcomings of poor skin affinity of some short fibers, and achieving a yarn-forming effect of multi-organic fusion and maximum functional benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A flow chart of a spinning method for an implantable multi-channel four-layer staple core-spun yarn provided in Example 1 of the present invention;

[0020] Figure 2 A flow chart of a spinning method for an implantable multi-channel three-layer staple core-spun yarn provided in Example 2 of the present invention;

[0021] Figure 3 A schematic diagram of a drawing process provided by an embodiment of the present invention (the dotted lines are other insertion channels of the roving);

[0022] Figure 4 A schematic diagram of a roving process provided by an embodiment of the present invention (the dotted lines are other implantation channels of the roving);

[0023] Figure 5 A schematic diagram of a spinning process provided by an embodiment of the present invention (the dotted line is another implantation channel of the bobbin yarn);

[0024] Figure 6 a is a cross-sectional view of a double-layer yarn structure provided by an embodiment of the present invention, Figure 6 b is a cross-sectional view of the three-layer yarn structure. Figure 6 c is a cross-sectional view of the four-layer yarn structure. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0027] Example 1

[0028] An implantable multi-channel four-layer staple fiber core-spun yarn, the preparation process of which is as follows Figure 1 As shown, the specific steps include:

[0029] (1) subjecting raw material A to the processes of cleaning, carding, drawing and roving to obtain roving A;

[0030] (2) Raw material B is subjected to the processes of cleaning and combing to obtain semi-cooked sliver B, which is then subjected to the drawing process (such as Figure 3 As shown in the figure, the semi-ripened sliver B rotates through the guide roller and is led out from the sliver can. It is gathered by the cotton feeding roller and the guide block and fed into the drafting device of the drawing machine. At the same time, a roving A is fed from the rubber roller to achieve that the roving A is completely covered by the semi-ripened sliver B. It is then drafted into sliver AB by the rubber roller and the drafting roller. The ripe sliver AB is condensed in the bunching tube and the pressure roller, and is coiled in the sliver can by the coiler. After the roving process, the roving AB is made. Its cross section is shown in the figure. Figure 6 As shown in a;

[0031] (3) The raw material C is subjected to the processes of cleaning, combing and drawing to obtain the sliver C. In the roving process (such as Figure 4 As shown in the figure, the sliver C is drawn out from the sliver can, fed into the drafting device of the roving frame through the guide roller and the bell mouth, and a roving AB is fed from the roller at the same time, so that the roving AB is completely covered by the sliver C, and then the sliver ABC is drawn out through the roller and the leather ring combination device, and is twisted and wound onto the bobbin to form the roving ABC, which is made into the cop yarn ABC through the spinning process, and the bobbin yarn ABC is made into the bobbin yarn ABC through the winding process. Its cross section is shown in the figure. Figure 6 As shown in b;

[0032] (4) Raw material D is subjected to the processes of cleaning, combing, drawing and roving to obtain roving D, which is then used in the spun spinning process (such as Figure 5 As shown in the figure, the roving D is unwound from the roving bobbin and fed into the drafting area of ​​the ring spinning frame through the bell mouth. At the same time, the cone yarn ABC is fed from the roller to achieve that the cone yarn ABC is completely covered by the roving D. It converges at the front jaw and enters the twisting triangle area for twisting. It passes through the yarn guide hook and the wire ring and is wound into a tube yarn ABCD. After the winding process, the cone yarn ABCD is made. Its cross section is as shown in the figure. Figure 6 As shown in c.

[0033] Example 2

[0034] An implantable multi-channel three-layer staple fiber core-spun yarn, the preparation process of which is as follows Figure 2 As shown, the specific steps include:

[0035] (1) subjecting raw material A to the processes of cleaning, carding, drawing and roving to obtain roving A;

[0036] (2) Raw material B is subjected to the processes of cleaning, combing and drawing to obtain sliver B. In the roving process (such as Figure 4 As shown in the figure, the sliver B is drawn out from the sliver can, fed into the drafting device of the roving frame through the guide roller and the bell mouth, and a roving A is fed from the roller at the same time, so that the roving A is completely covered by the sliver B, and then the sliver AB is drawn out through the roller and the leather ring combination device, and is twisted and wound onto the bobbin to form the roving AB, which is made into the cop yarn AB through the spinning process, and then made into the cone yarn AB through the winding process. Its cross section is shown in the figure. Figure 6 As shown in a;

[0037] (3) Raw material C is subjected to the processes of cleaning, combing, drawing and roving to obtain roving C, which is then used in the spun spinning process (such as Figure 5 As shown in the figure, the roving C is unwound from the roving bobbin and fed into the drafting area of ​​the ring spinning frame through the bell mouth. At the same time, the cone yarn AB is fed from the roller to achieve that the cone yarn AB is completely covered by the roving C. It converges at the front jaw and enters the twisting triangle area for twisting. It passes through the yarn guide hook and the wire ring and is wound into a tube yarn ABC. After the winding process, the cone yarn ABC is made. Its cross section is as shown in the figure. Figure 6 As shown in b;

[0038] The yarn ratio of Example 2 is 40-s yarn with 45% modal (raw material A), 45% cotton (raw material B) and 10% cashmere (raw material C), and the twist coefficient is 340.

[0039] Comparative Example

[0040] A yarn is prepared by using Siro compact spinning technology, mixing 45% modal and 10% cashmere bulk fibers and 45% cotton slivers, and spinning with the same yarn ratio and machine parameters as in Example 2, with a twist coefficient of 340.

[0041] The yarns spun in Example 2 and the comparative example were tested for yarn evenness, hairiness and strength, and the results are shown in Table 1:

[0042] Table 1 Test results of yarn evenness, hairiness and strength

[0043]

[0044] It can be seen from Table 1 that Example 2 of the present invention is prepared according to the spinning method of implantable multi-channel multi-layer staple core-spun yarn. Compared with the comparative example with the same fiber blending ratio, the yarn evenness, cotton knots and the number of hairiness above 3 mm of the embodiment are significantly smaller, and the strength is significantly greater. This shows that the spinning method of implantable multi-channel multi-layer staple core-spun yarn proposed in the embodiment of the present invention can not only select a variety of staple fibers to prepare a three-layer or multi-layer yarn structure, but also effectively reduce the yarn evenness and the number of harmful hairiness, improve the yarn strength, improve the yarn quality, and provide new ideas for the design, development and mass production of multi-layer staple fiber composite structure yarn.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An implantable multi-channel multi-layer staple core-spun yarn, characterized in that: The core-spun yarn is a composite yarn structure with n layers of coating, wherein n≥3, the inner layer of the composite yarn structure is a supporting short fiber material, the middle layer is a functional fiber raw material, and the outer layer is a skin-friendly functional fiber raw material.

2. The implantable multi-channel multi-layer staple core-spun yarn according to claim 1, characterized in that: The n=3, the first layer of the composite yarn structure is the inner layer, the second layer is the middle layer, and the third layer is the outer layer.

3. The implantable multi-channel multi-layer staple core-spun yarn according to claim 1, characterized in that: The n=4, the first layer of the composite yarn structure is an inner layer, the second layer and the third layer are middle layers, and the fourth layer is an outer layer.

4. A spinning method for the implantable multi-channel multi-layer staple core-spun yarn as claimed in claim 2, characterized in that: The following steps are involved: (1) subjecting the first layer of fiber raw materials to the processes of cleaning, carding, drawing, and roving to obtain the first layer of roving; (2) The second layer of fiber raw materials is subjected to the processes of cleaning, carding, and drawing to obtain the second layer of sliver. In the roving process, the first layer of roving and the second layer of sliver are simultaneously fed into the drafting device, the first layer of roving is completely covered by the second layer of sliver, passes through rollers and aprons, is output by the front roller, is twisted, and is led to the bobbin to be wound into two layers of roving, which is then subjected to the spun yarn process to be made into two layers of bobbins, and then subjected to the bobbin winding process to be made into two layers of bobbins; (3) The third layer of fiber raw material is subjected to the steps of cleaning, carding, drawing and roving to obtain the third layer of roving. In the spinning step, the third layer of roving and the two layers of bobbin yarn spun in step (2) are simultaneously fed into the drafting device and converged at the front jaw. The two layers of bobbin yarn are completely covered by the third layer of roving, output through the front roller, passed through the wire ring, twisted and wound onto the bobbin to form a three-layer bobbin yarn, and then subjected to the winding step to form a three-layer bobbin yarn.

5. A spinning method for the implantable multi-channel multi-layer staple core-spun yarn as claimed in claim 3, characterized in that: The following steps are involved: (1) subjecting the first layer of fiber raw materials to the processes of cleaning, carding, drawing, and roving to obtain the first layer of roving; (2) The second layer of fiber raw materials is subjected to the processes of cleaning and combing to obtain the second layer of semi-ripened slivers. In the drawing process, the first layer of roving and the second layer of semi-ripened slivers are simultaneously fed into the drafting device, the first layer of roving is completely covered by the second layer of semi-ripened slivers, and the roving is agglomerated into slivers through rubber rollers, drafting rollers, clustering tubes and pressure rollers. The double-layer slivers are output in the sliver can through a coiler, and are subjected to the roving process to obtain double-layer rovings; (3) The third layer of fiber raw materials is subjected to the steps of cleaning, carding, and drawing to obtain the third layer of sliver. In the roving step, the double-layer roving spun in step (2) and the third layer of sliver are simultaneously fed into the drafting device, the double-layer roving is completely covered by the third layer of sliver, passes through rollers and aprons, is output by the front roller, is twisted, and is led to a bobbin to be wound into a three-layer roving, which is then subjected to the spinning step to be made into a three-layer cob yarn, and then subjected to the winding step to be made into a three-layer bobbin yarn; (4) The fourth layer of fiber raw material is subjected to the processes of cleaning, carding, drawing and roving to obtain the fourth layer of roving. In the spun spinning process, the fourth layer of roving and the three-layer bobbin yarn spun in step (3) are simultaneously fed into the drafting device and converged at the front jaw. The three-layer bobbin yarn is completely covered by the fourth layer of roving, outputted through the front roller, passed through the wire ring, twisted and wound onto the bobbin to form the four-layer bobbin yarn, and then subjected to the winding process to form the four-layer bobbin yarn.

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