Yarn for blended linen fabric and production method and application thereof

Abstract

The invention discloses yarn for blended linen fabric and a production method and application thereof, and belongs to the technical field of spinning. The yarn for the blended linen fabric comprises tencel fibers, fine staple cotton and ramie fibers, the mass ratio of the tencel fibers is 50-55%, the mass ratio of the fine staple cotton is 35-40%, and the mass ratio of the ramie fibers is 5-10%. In addition, the invention further provides a production method of the yarn for the blended linen fabric, and the yarn is produced through the procedures of blowing, cotton carding, drawing and rotor spinning in sequence. And in the rotor spinning process, the rotor spinning twist is 800-1100 twists per meter, and the spinning rotor speed is 80000-100000 rpm (revolutions per minute). In addition, the invention further provides application of the yarn for the blended linen fabric in production of high-grade shirt fabric. The yarn for the blended linen fabric has the technical effects of being soft in hand feeling, uniform in evenness, high in strength and good in breathability and hygroscopicity.

Description

Technical Field

[0001] The invention relates to the technical field of textiles, and in particular to a yarn for blended linen fabrics and a production method and application thereof. Background Art

[0002] Ramie fiber is the longest and strongest among all kinds of ramie fibers, 3 to 6 times longer than the highest grade cotton. After degumming, ramie fiber is as white as jade, has good luster, and is not easy to fade after dyeing. The cross section of ramie fiber is a cavity structure, which allows the absorbed sweat to penetrate into the cavity and be quickly discharged, so it has excellent air permeability and heat transfer, absorbs a lot of water and dissipates moisture quickly, and has excellent moisture absorption and air permeability.

[0003] However, although ramie fibers are long, their length unevenness is very large, which affects the spinning performance. Since ramie fibers are coarse in fineness, have high rigidity, smooth surface, lack natural curl, and have low cohesion between fibers, spinning is relatively difficult. In addition, ramie degumming is not easy to be fully removed, and often leaves behind hard strips, flax skin, etc. Therefore, the unevenness of the yarn dryness and strength are relatively high. Since the single fiber is long and rigid, it is difficult to incorporate the fiber head end into the yarn during the spinning process, so the yarn surface has many and long hairs, and the hairiness is serious, which has a great impact on production. During the processing, adjacent warp yarns are easily entangled, which increases the breakage and causes unclear opening on the loom. In the prior art, it is not possible to obtain yarn with good dryness and strength when spinning ramie yarn by air-jet spinning. Summary of the invention

[0004] The purpose of the present invention is to overcome the above technical deficiencies, provide a blended linen yarn and its production method and application, and solve the technical problem in the prior art that dry and strong yarn cannot be obtained when air-spun ramie yarn is spun.

[0005] To achieve the above technical objectives, the technical solution of the present invention provides a blended linen fabric yarn, comprising tencel fiber, fine cotton and ramie fiber; wherein the mass proportion of tencel fiber is 50-55%, the mass proportion of fine cotton is 35-40%, and the mass proportion of ramie fiber is 5-10%.

[0006] In any embodiment, the performance parameters of the Tencel fiber include: specific strength 3.98-3.40cn / dtex, specific resistance 8*10 8 Ω*CM, elongation at break 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 is produced by using Tencel fiber, fine cotton and ramie fiber as raw materials and sequentially through a cleaning process, a carding process, a drawing process and an air-spinning process; in the air-spinning process, the air-spinning twist is 800-1100 twists / m and the spinning cup speed is 80000-100000rpm.

[0008] In any embodiment, in the cotton cleaning step, the fine cotton and the ramie fiber are mixed into rolls at a weight ratio of 1.5:1.

[0009] In any embodiment, in the drawing process, after one pre-drawing and three drawing steps, six strands are drawn together, and the drawn strands are divided into three Tencel strands and three cotton-ramie blended strands.

[0010] In any embodiment, in the drawing process, the pre-drawing is Tencel, 8 strands are drawn together, and the roller spacing is 12mm×20mm.

[0011] In any embodiment, in the drawing process, two strands of 8 strands are drawn together, the basis weight is 27-27.5 g / 5 m, and the roller gauge is 10 mm×18 mm.

[0012] In any embodiment, in the drawing process, three strands are drawn together to form 8 strands, the basis weight is 26.5-27 g / 5 m, and the roller gauge is 10 mm×18 mm.

[0013] In any embodiment, in the carding process, the 5-point gauge between the cylinder and the cover plate is 9 inches × 8 inches × 7 inches × 7 inches × 8 inches, and the carded cotton dry weight is 18g / 5m-18.5g / 5m.

[0014] In addition, the present invention also proposes an application of the blended linen fabric yarn or the blended linen fabric yarn produced by the above production method in the production of high-end 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 comprises Tencel fiber, fine cotton and ramie fiber; wherein the mass proportion of Tencel fiber is 50-55%, the mass proportion of cotton fiber is 35-40%, and the mass proportion of ramie fiber is 5-10%. The obtained blended linen fabric yarn has the technical effects of soft hand feel, uniform yarn length, high strength, and good air permeability and moisture absorption. DETAILED DESCRIPTION

[0016] The "range" disclosed in the present application is defined in the form of a lower limit and an upper limit, and a given range is defined by selecting a lower limit and an upper limit, and the selected lower limit and upper limit define the boundaries of the particular range. The range defined in this way can be inclusive or exclusive of the end values, and can be arbitrarily combined, that is, any lower limit can be combined with any upper limit to form a range. For example, if a range of 60 to 120 and 80 to 110 is listed for a particular parameter, it is understood that a range of 60 to 110 and 80 to 120 is also expected. In addition, if the minimum range values ​​1 and 2 are listed, and if the maximum range values ​​3, 4 and 5 are listed, the following ranges can all be expected: 1 to 3, 1 to 4, 1 to 5, 2 to 3, 2 to 4 and 2 to 5. In the present application, unless otherwise specified, the numerical range "a to b" represents an abbreviation of any real number combination between a and b, where a and b are both real numbers. For example, the numerical range "0-5" means that all real numbers between "0-5" are listed in this document, and "0-5" is just an abbreviation of these numerical combinations. In addition, when a parameter is expressed as an integer ≥ 2, it is equivalent to disclosing that the parameter is, for example, an integer of 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, etc.

[0017] If there is no special explanation, the "include" and "comprising" mentioned in this application are open-ended or closed-ended. For example, the "include" and "comprising" may mean that other components not listed may also be included or only the listed components may be included or only the listed components may be included.

[0018] If not specifically stated, in this application, the term "or" is inclusive. For example, the phrase "A or B" means "A, B, or both A and B". More specifically, any of the following conditions satisfies the condition "A or B": 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] The present specific embodiment provides a blended linen fabric yarn, comprising tencel fiber, fine cotton and ramie fiber; wherein the mass proportion of tencel fiber is 50-55%, the mass proportion of fine cotton is 35-40%, and the mass proportion of ramie fiber is 5-10%; the performance parameters of the tencel fiber include: specification 1.3dtex*32mm, specific strength 3.98-3.40cn / dtex, specific resistivity 8*10 8 Ω*CM, elongation at break 14.4-14.5%; the ramie fiber is degummed ramie fiber. In some embodiments, the performance parameters of the fine-staple cotton include: grade 3, length 29.5 mm, impurities 2.6%, micronaire value 3.6, fiber strength 29.5 cN / tex;

[0020] This specific embodiment also provides 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 through a process of cleaning, carding, drawing and air-spinning in sequence;

[0021] In the cotton cleaning process, the weight ratio of the fine cotton to the ramie fiber is 1.5:1, and the fine cotton and the ramie fiber are mixed into a roll;

[0022] In the carding process, the 5-point gauge between the cylinder and the cover plate is 9 inches × 8 inches × 7 inches × 7 inches × 8 inches, and the carded cotton dry weight is 18g / 5m-18.5g / 5m;

[0023] In the drawing process, after one pre-drawing and three drawing steps, the first drawing step has 6 strands, and the strands are divided into 3 Tencel strands and 3 cotton-ramie blended strands; the second drawing step has 8 strands, with a basis weight of 27-27.5g / 5m and a roller gauge of 10mm×18mm; the third drawing step has 8 strands, with a basis weight of 26.5-27g / 5m and a roller gauge of 10mm×18mm;

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

[0025] The invention uses tencel, fine cotton and ramie fiber as raw materials, and produces the blended linen fabric through the processes of cleaning, carding, drawing and air-spinning in sequence; in the air-spinning process, the air-spinning twist is 800-1100 twists / m, the spinning speed is 80000-100000 rpm, and the count of the obtained blended linen fabric yarn is 18-30. The blended linen fabric yarn has the advantages of soft hand feeling, uniform yarn length, high strength and good air permeability and moisture absorption.

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

[0027] 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 embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] In the present invention, reference is made to “some embodiments”, “this embodiment”, examples, etc., which describe a subset of all possible embodiments, but it can be understood that “some embodiments” may be the same subset or different subsets of all possible embodiments and may be combined with each other without conflict.

[0029] If similar descriptions of "first / second" appear in the application documents, the following instructions are added. In the following description, the terms "first\second\third" are merely used to distinguish similar objects and do not represent a specific ordering of the objects. It can be understood that "first\second\third" can be interchanged in a specific order or sequence where permitted, so that the embodiments described herein can be implemented in an order other than that described herein.

[0030] In this embodiment, the term "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, object A and / or object B may represent three situations: object A exists alone, object A and object B exist at the same time, and object B exists alone.

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

[0032] Example 1

[0033] This embodiment provides a functional blended yarn for linen fabric, which uses tencel, fine cotton and ramie fiber as raw materials, wherein the mass proportion of tencel fiber is 50%, the mass proportion of fine cotton is 40%, and the mass proportion of ramie fiber is 10%, and is produced through the following process steps:

[0034] (1) Blowing and carding process

[0035] Cleaning process: Since ramie fiber is coarse, rigid, smooth, lacks natural curl, and has low cohesion between fibers, it is blended with fine cotton in the cleaning process. Fine cotton and ramie fiber are mixed into rolls at a ratio of 1.5 times.

[0036] Carding process: the 5-point spacing between the cylinder and the cover plate is 9 silk × 8 silk × 7 silk × 7 silk × 8 silk, and the carded cotton dry weight is 18g / 5m; the cotton web clarity in the carding process is a class I cotton web, and the raw sliver cotton knots are within 30 grains / gram.

[0037] (2) Drawing process

[0038] The drawing frame is produced on the FA317→TM13 drawing frame, with one pre-drawing and three drawing passes. The pre-drawing is Tencel pre-drawing, 8 draws, roller gauge 12mm×20mm, one draw is 6 draws, the draw is divided into 3 Tencel strips + 3 cotton ramie strips, the basis weight is 27.5g / 5m, roller gauge 10mm×18mm; the second draw is 8 draws, the basis weight is 27g / 5m, roller gauge 10mm×18mm; the third draw is 8 draws, the basis weight is 26.5g / 5m, roller gauge 10mm×18mm.

[0039] (3) Air-spinning process

[0040] The air-spinning is produced on the Schlafhorst Autocoro fully automatic air-spinning machine, with an air-spinning twist of 830 twists / m, a spinning rotor speed of 100,000 rpm, and a combing roller speed of 9,500 rpm. Due to the long fiber length, in order to avoid fiber breakage caused by poor operation in the spinning rotor, the spinning rotor uses the T633BD model, and the twisting disc uses the A-31 model. A white false twister is used, and the combing roller uses the B20DN model to avoid flying flowers clogging the combing roller. The twisting head uses KSS to reduce breakage. The single yarn with a number of 32.8 tex and a count of 18 is produced, which is the functional blended linen fabric yarn.

[0041] Example 2

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

[0043] Example 3

[0044] In the functional blended linen fabric yarn proposed in this embodiment, the mass proportion of Tencel fiber is 55%, the mass proportion of cotton fiber is 38%, the mass proportion of ramie fiber is 8%, and the other process parameters are the same as those in Example 1.

[0045] Performance Testing

[0046] According to conventional methods or national standards in the textile field, relevant properties of the functional blended linen fabric yarns produced in Examples 1 to 3 and Comparative Example 1 were tested, and the test results are shown in Table 1 below.

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

[0048]

[0049] It can be seen from the data in Table 1 above that the quality of the blended linen fabric yarn obtained in Examples 1-3 is good, the yarn strength meets the production requirements, and the breakage during the production process is normal.

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

Claims

1. A blended linen fabric yarn, characterized in that: Including Tencel fiber, fine cotton and ramie fiber; among them, the mass proportion of Tencel fiber is 50-55%, the mass proportion of fine cotton is 35-40%, and the mass proportion of ramie fiber is 5-10%.

2. The blended linen yarn according to claim 1, characterized in that: The performance parameters of the Tencel fiber include: specific strength 3.98-3.40cn / dtex, specific resistance 8*10 8 Ω*CM, elongation at break 14.4-14.5%; and / or, the ramie fiber is degummed ramie fiber.

3. A method for producing blended linen fabric yarn according to any one of claims 1 to 2, characterized in that: The invention uses tencel fiber, fine cotton and ramie fiber as raw materials and is produced through the processes of cleaning, carding, drawing and air-spinning in sequence; in the air-spinning process, the air-spinning twist is 800-1100 twists / m and the spinning cup speed is 80000-100000rpm.

4. The method for producing blended linen fabric yarn according to claim 3, characterized in that: In the cotton cleaning process, the weight ratio of the fine cotton to the ramie fiber is 1.5:1, and they are mixed into rolls.

5. The method for producing blended linen yarn according to claim 3, characterized in that: In the drawing process, after one pre-drawing and three drawing steps, 6 strands are drawn together, and the drawn strands are distributed into 3 Tencel strands and 3 cotton-ramie blended strands.

6. The method for producing blended linen yarn according to claim 5, characterized in that: In the drawing process, the pre-drawing is Tencel, 8 strands are drawn together, and the roller spacing is 12mm×20mm.

7. The method for producing blended linen yarn according to claim 5, characterized in that: In the drawing process, two strands of 8 strands are combined, the basis weight is 27-27.5g / 5 meters, and the roller gauge is 10mm×18mm.

8. The method for producing blended linen yarn according to claim 5, characterized in that: In the drawing process, three strands of 8 strands are combined, the basis weight is 26.5-27g / 5 meters, and the roller gauge is 10mm×18mm.

9. The method for producing blended linen yarn according to claim 3, characterized in that: In the carding process, the 5-point spacing between the cylinder and the cover plate is 9 inches × 8 inches × 7 inches × 7 inches × 8 inches, and the carded cotton dry weight is 18g / 5m-18.5g / 5m.

10. Use of the blended linen fabric yarn according to any one of claims 1 to 2 or the blended linen fabric yarn produced by the production method according to any one of claims 3 to 9 in the production of high-end shirt fabrics.

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