Blended jute fabric yarn, its production method and application

Abstract

The application discloses blended hemp fabric yarn and a production method and application thereof, and belongs to the field of textile technology.The blended hemp fabric yarn comprises Tencel fiber, fine lint cotton and ramie fiber;the mass percentage of the Tencel fiber is 50-55%, the mass percentage of the fine lint cotton is 35-40%, and the mass percentage of the ramie fiber is 5-10%.In addition, the application further provides a production method of the blended hemp fabric yarn, which is produced through the processes of cleaning, carding, drawing and air spinning in sequence;in the air spinning process, the twist of the air spinning is 800-1100 twists per meter, and the speed of the spinning cup is 80000-100000 rpm.In addition, the application further provides application of the blended hemp fabric yarn in production of high-grade shirt fabric.The blended hemp fabric yarn has the technical effects of soft hand feeling, uniform strip evenness, high strength, and good air permeability and moisture absorption.

Description

Technical Field

[0001] This invention relates to the field of textile technology, specifically to a blended linen yarn for fabric production and its application. Background Technology

[0002] Ramie fiber is the longest and strongest of all types of hemp fibers, exceeding the length of even the highest-grade cotton by 3 to 6 times. After degumming, ramie fiber is as white as jade, has a good luster, and is not easily faded after dyeing. The hollow cross-section of ramie fiber allows absorbed sweat to permeate into the cavities and be quickly expelled, resulting in superior breathability and heat transfer. It absorbs a lot of water and releases it quickly, exhibiting excellent moisture absorption and breathability.

[0003] However, although ramie fibers are long, their length unevenness is significant, affecting spinning performance. Due to the coarseness, high stiffness, smooth surface, and lack of natural crimp of ramie fibers, the cohesion between fibers is weak, making spinning difficult. Furthermore, ramie degumming is not easily completed, often leaving hard strips and ramie bark, resulting in high yarn evenness and strength unevenness. Because the individual fibers are long and rigid, the fiber ends are difficult to incorporate into the yarn during spinning, resulting in numerous and long hairs on the yarn surface, causing severe fuzziness and significantly impacting production. During processing, adjacent warp yarns are prone to entanglement, increasing breakage and causing unclear yarn sheathing on the loom. Current air-jet spinning techniques for ramie cannot produce yarn with good evenness and strength. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and provide a blended ramie fabric yarn, its production method and application, solving the technical problem that the yarn with good evenness and strength cannot be obtained when air-jet spinning ramie in the prior art.

[0005] To achieve the above-mentioned technical objectives, the present invention provides a blended hemp fabric yarn, comprising Tencel fiber, cotton staple and ramie fiber; wherein the mass percentage of Tencel fiber is 50-55%, the mass percentage of cotton staple is 35-40%, and the mass percentage of ramie fiber is 5-10%.

[0006] In any embodiment, the performance parameters of the Tencel fiber include: specific strength 3.98-3.40 cn / dtex, specific resistivity 8*10 8 Ω*CM, breaking elongation 14.4-14.5%; and / or, the ramie fiber is degummed ramie fiber.

[0007] In addition, the present invention also proposes a method for producing the above-mentioned blended linen fabric yarn, which uses Tencel fiber, linseed cotton and ramie fiber as raw materials, and produces the yarn through opening, carding, drawing and air-jet spinning processes in sequence; in the air-jet spinning process, the air-jet spinning twist is 800-1100 twists / meter and the spinning cup speed is 80000-100000 rpm.

[0008] In any embodiment, during the opening and cleaning process, the weight ratio of the fine cotton to the ramie fiber is 1.5:1, and they are mixed and rolled into rolls.

[0009] In any embodiment, the drawing process involves one pre-drawing and three drawing processes, with six slivers drawn together and distributed as three Tencel slivers and three cotton-ramie blended slivers.

[0010] In any embodiment, during the drawing process, the Tencel pre-drawing is performed, with 8 strands drawn together and a roller spacing of 12mm × 20mm.

[0011] In any embodiment, in the drawing process, 8 strands are drawn together, with a weight of 27-27.5g / 5 meters and a roller spacing of 10mm×18mm.

[0012] In any embodiment, in the drawing process, 8 strands are drawn together in three stages, with a weight of 26.5-27g / 5 meters and a roller spacing of 10mm×18mm.

[0013] In any embodiment, during the carding process, the 5-point spacing between the cylinder and the cover plate is 9 filaments × 8 filaments × 7 filaments × 7 filaments × 8 filaments, and the carding dry weight is 18g / 5m-18.5g / 5m.

[0014] Furthermore, the present invention also proposes the application of the above-mentioned blended linen fabric yarn or the blended linen fabric yarn produced by the above-mentioned production method in the production of high-grade shirt fabrics.

[0015] Compared with the prior art, the beneficial effects of the present invention include: the blended linen fabric yarn proposed in the present invention includes Tencel fiber, cotton fiber and ramie fiber; wherein, the mass percentage of Tencel fiber is 50-55%, the mass percentage of cotton fiber is 35-40%, and the mass percentage of ramie fiber is 5-10%, and the resulting blended linen fabric yarn has the technical effects of soft hand feel, uniform yarn, high strength, and good breathability and moisture absorption. Detailed Implementation

[0016] The "range" disclosed in this application is defined by a lower limit and an upper limit. A given range is defined by selecting a lower limit and an upper limit, which define the boundaries of a particular range. Ranges defined in this way can include or exclude endpoints and can be arbitrarily combined; that is, any lower limit can be combined with any upper limit to form a range. For example, if ranges of 60–120 and 80–110 are listed for a specific parameter, it is understood that ranges of 60–110 and 80–120 are also expected. Furthermore, if minimum range values ​​of 1 and 2 are listed, and if maximum range values ​​of 3, 4, and 5 are listed, then the following ranges are all expected: 1–3, 1–4, 1–5, 2–3, 2–4, and 2–5. In this application, unless otherwise stated, the numerical range "a–b" represents a shortened representation of any combination of real numbers between a and b, where a and b are real numbers. For example, the numerical range "0~5" indicates that all real numbers between "0~5" have been listed in this article; "0~5" is simply a shortened representation of these numerical combinations. Furthermore, when a parameter is stated as an integer ≥2, it is equivalent to disclosing that the parameter is, for example, an integer such as 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, etc.

[0017] Unless otherwise specified, the terms "comprising" and "including" as used in this application can be open-ended or closed-ended. For example, "comprising" and "including" can mean that other components not listed may also be included, or that only the listed components may be included.

[0018] Unless otherwise specified, the term "or" is inclusive in this application. For example, the phrase "A or B" means "A, B, or both A and B". More specifically, the condition "A or B" is satisfied by any of the following conditions: A is true (or exists) and B is false (or does not exist); A is false (or does not exist) and B is true (or exists); or both A and B are true (or exist).

[0019] This specific embodiment provides a blended linen fabric yarn, comprising Tencel fiber, cotton staple, and ramie fiber; wherein the mass percentage of Tencel fiber is 50-55%, the mass percentage of cotton staple is 35-40%, and the mass percentage of ramie fiber is 5-10%; the performance parameters of the Tencel fiber include: 1.3 dtex * 32 mm, specific strength 3.98-3.40 cn / dtex, and resistivity 8 * 10⁻⁶. 8 Ω*CM, breaking elongation 14.4-14.5%; the ramie fiber is degummed ramie fiber. In some embodiments, the performance parameters of the linterskin include: grade 3, length 29.5mm, impurities 2.6%, micronaire value 3.6, and fiber strength 29.5cN / tex;

[0020] This specific embodiment also proposes a method for producing the above-mentioned blended linen fabric yarn, which uses Tencel fiber, fine cotton and ramie fiber as raw materials and is produced by sequentially passing through opening, carding, drawing and air-jet spinning processes;

[0021] In the opening and cleaning process, the weight ratio of the fine cotton to the ramie fiber is 1.5:1, and they are mixed and rolled into rolls.

[0022] In the carding process, the 5-point spacing between the cylinder and the cover plate is 9 filaments × 8 filaments × 7 filaments × 7 filaments × 8 filaments, and the carding dry weight is 18g / 5m-18.5g / 5m.

[0023] In the drawing process, there is one pre-drawing and three drawing processes. The first drawing process involves drawing 6 strands, which are divided into 3 Tencel strands and 3 cotton-ramie blended strands. The second drawing process involves drawing 8 strands, with a basis weight of 27-27.5g / 5m and a roller spacing of 10mm×18mm. The third drawing process involves drawing 8 strands, with a basis weight of 26.5-27g / 5m and a roller spacing of 10mm×18mm.

[0024] In the air-jet spinning process, the air-jet spinning twist is 800-1100 twists / meter, and the spinning cup speed is 80000-100000 rpm.

[0025] This invention uses Tencel, linseed cotton, and ramie fiber as raw materials, and produces the blended linen fabric yarn through sequential processes of opening, carding, drawing, and air-jet spinning. In the air-jet spinning process, the twist is 800-1100 twists / meter, and the spinning speed is 80000-100000 rpm. The resulting blended linen fabric yarn has a count of 18-30. This blended linen fabric yarn has the advantages of soft hand feel, evenness, high strength, and good breathability and moisture absorption.

[0026] This specific embodiment also proposes the application of the above-mentioned blended linen fabric yarn or the blended linen fabric yarn produced by the above-mentioned production method in the production of high-grade shirt fabrics.

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0028] In this invention, the terms "some embodiments," "this embodiment," and examples are used to describe a subset of all possible embodiments. However, it is understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0029] If the application documents contain similar descriptions such as "first / second", the following explanation shall be added: In the following description, the terms "first / second / third" are used only to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first / second / third" may be interchanged in a specific order or sequence where permitted, so that the embodiments described herein can be implemented in a different order than that described herein.

[0030] In this embodiment, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, object A and / or object B can represent three situations: object A exists alone, object A and object B exist simultaneously, and object B exists alone.

[0031] In the following embodiments, the performance parameters of Tencel fiber include: 1.3 dtex * 32 mm, specific strength 3.98 cn / dtex, and specific resistivity 8 * 10⁻⁶. 8 Ω*CM, breaking elongation 14.4%; ramie is degummed ramie, dry spun; the performance parameters of the fine cotton include: grade 3, length 29.5mm, impurities 2.6%, micronaire value 3.6, fiber strength 29.5cN / tex.

[0032] Example 1

[0033] This embodiment proposes a functional blended linen fabric yarn, using Tencel, cotton, and ramie fiber as raw materials, wherein the mass percentage of Tencel fiber is 50%, the mass percentage of cotton is 40%, and the mass percentage of ramie fiber is 10%, and the production process is carried out through the following steps:

[0034] (1) Opening and carding processes

[0035] Opening process: Because ramie fibers are coarse, stiff, smooth, lack natural crimp, and have low cohesion between fibers, the opening process involves blending with fine cotton. Fine cotton and ramie fibers are mixed in a 1.5 ratio and rolled into rolls.

[0036] Carding process: The 5-point spacing between the cylinder and the flats is 9 silk × 8 silk × 7 silk × 7 silk × 8 silk, and the dry weight of carding is 18g / 5m; the clarity of the cotton web in the carding process is Class I cotton web, and the number of cotton knots in the sliver is less than 30 per gram.

[0037] (2) Drawing process

[0038] The sliver is produced on the FA317→TM13 drawing frame, with one pre-drawing and three drawing processes. The pre-drawing is Tencel pre-drawing, with 8 slivers drawn together and a roller spacing of 12mm×20mm. The first drawing process involves 6 slivers drawn together, with the combined slivers consisting of 3 Tencel slivers and 3 cotton-ramie slivers, a basis weight of 27.5g / 5 meters and a roller spacing of 10mm×18mm. The second drawing process involves 8 slivers drawn together, with a basis weight of 27g / 5 meters and a roller spacing of 10mm×18mm. The third drawing process involves 8 slivers drawn together, with a basis weight of 26.5g / 5 meters and a roller spacing of 10mm×18mm.

[0039] (3) Air-jet spinning process

[0040] The air-jet spinning process is carried out on a fully automatic Autocoro air-jet spinning machine. The twist is 830 twists / meter, the spinning cup speed is 100,000 rpm, and the carding roller speed is 9,500 rpm. Due to the long fiber length, to prevent fiber breakage caused by poor fiber movement in the spinning cup, a T633BD model spinning cup is used, and an A-31 model spinning cup is used to match the twist-blocking disc. A white false twister is used, and a B20DN model carding roller is used to prevent fly waste from clogging the carding roller. A KSS twist-blocking head is used to reduce breakage. A single yarn with a count of 32.8 tex and a yarn count of 18 is produced; this single yarn is for functional blended linen fabrics.

[0041] Example 2

[0042] The functional blended linen fabric yarn proposed in this embodiment has an air-jet spinning twist of 1070 twists / meter and a spinning cup speed of 80000 rpm in the air-jet spinning process. Other process parameters are the same as in Embodiment 1, producing a single yarn with a count of 19.7 tex and a count of 30.

[0043] Example 3

[0044] The functional blended linen yarn proposed in this embodiment has a mass ratio of 55% Tencel fiber, 38% cotton fiber, and 8% ramie fiber. Other process parameters are the same as in Embodiment 1.

[0045] Performance testing

[0046] The functional blended linen yarns produced in Examples 1-3 and Comparative Example 1 were tested for relevant properties according to conventional methods or national standards in the textile industry. The test results are shown in Table 1 below.

[0047] Table 1. Test results of blended linen fabric yarn produced in Examples 1-3

[0048]

[0049] As can be seen from the data in Table 1 above, the blended linen fabric yarns obtained in Examples 1-3 are of good quality, with evenness and strength meeting production requirements, and breakage occurring normally during the production process.

[0050] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A method for producing yarn for blended linen fabrics, characterized in that, It is produced from Tencel fiber, fine cotton and ramie fiber as raw materials through opening, carding, drawing and air-jet spinning processes in sequence; in the air-jet spinning process, the twist is 800-1100 twists / meter and the spinning cup speed is 80000-100000 rpm; in the drawing process, it goes through one pre-drawing and three drawing processes, with 6 strands drawn together in one drawing, and the combined strands are distributed as 3 Tencel strands and 3 cotton-ramie blended strands; in the carding process, the 5-point spacing between the cylinder and the cover plate is 9 filaments × 8 filaments × 7 filaments × 7 filaments × 8 filaments, and the carding dry weight is 18g / 5m-18.5g / 5m; The blended linen fabric yarn comprises Tencel fiber, cotton staple, and ramie fiber; wherein the mass percentage of Tencel fiber is 50-55%, the mass percentage of cotton staple is 35-40%, and the mass percentage of ramie fiber is 5-10%; the performance parameters of the Tencel fiber include: specific strength 3.98-3.40 cm / dtex, and resistivity 8*10⁻⁶. 8 Ω*cm, breaking elongation 14.4-14.5%; the ramie fiber is degummed ramie fiber.

2. The method for producing blended linen fabric yarn according to claim 1, characterized in that, In the opening and cleaning process, the weight ratio of the fine cotton to the ramie fiber is 1.5:1, and they are mixed and rolled into rolls.

3. The method for producing blended linen fabric yarn according to claim 1, characterized in that, In the drawing process, Tencel is pre-drawn, 8 strands are drawn together, and the roller spacing is 12mm×20mm.

4. The method for producing blended linen fabric yarn according to claim 1, characterized in that, In the drawing process, eight strands are drawn together, with a weight of 27-27.5g / 5 meters and a roller spacing of 10 mm × 18 mm.

5. The method for producing blended linen fabric yarn according to claim 1, characterized in that, In the drawing process, 8 strands are drawn together in three stages, with a weight of 26.5-27g / 5 meters and a roller spacing of 10 mm × 18 mm.

6. The use of blended linen yarn produced by the production method according to any one of claims 1-5 in the production of high-grade shirt fabrics.

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