Preparation method of flax spun yarn

Abstract

The invention relates to a preparation method of flax spun yarn, which comprises the following steps: firstly, extracting flax fibers from flax stems, and preparing into combed flax after preliminary processing; the primary processing comprises dipping, curing and beating into hemp; in the curing procedure, firstly, curing liquid is prepared and comprises a fiber stabilizer, an antistatic agent, an oiling agent and water, then the curing liquid is evenly sprayed on the linen fibers to be sealed, standing is conducted for 36 hours at the room temperature, and the moisture regain of the linen fibers is kept; carding the combed flax to obtain flax fibers, and drawing the flax fibers through a drawing frame to prepare flax slivers; and then roving, spinning and spooling are carried out to prepare the yarn. The fiber stabilizer is added in the flax fiber curing process to reinforce the molecular structure of the flax fiber so as to improve the tensile strength of the flax fiber, and the oiling agent and the water are added to promote the growth of the flax fiber and enhance the spinnability of the flax fiber; flax slivers are manufactured in the drawing process in the mode that the front portions are wide and the rear portions are narrow, and therefore the strength of the flax yarn is improved.

Description

Technical Field

[0001] The invention relates to the technical field of yarn production, in particular to a preparation method of flax spinning. Background Art

[0002] Flax fiber possesses unique advantages, such as excellent air permeability, moisture absorption and drainage, and natural antibacterial properties, making it an ideal choice for producing high-quality textiles. Therefore, finely modifying flax fiber and producing it using cotton spinning equipment can improve product quality and develop high-count, high-ratio flax yarn products that cannot be produced using traditional flax spinning methods. It can also reduce production costs, making the product highly competitive in the market. However, the typical length of flax yarn is 55 cm, and its high pectin content results in large fiber length variations, low spinnability, and low tension. Summary of the Invention

[0003] The technical problem solved by the present invention is to provide a method for preparing flax yarn to solve the problems in the above-mentioned background technology.

[0004] The technical problem solved by the present invention is achieved by adopting the following technical solutions: A method for preparing flax yarn, comprising the following steps: 1) Preparation of combed flax Flax fibers are extracted from flax stems and, after preliminary processing, are made into combed flax. The preliminary processing includes impregnation, curing, and beating. During the curing process, a curing solution is first prepared. The curing solution includes a fiber stabilizer, an antistatic agent, an oil, and water. The mass percentage ratio of the fiber stabilizer, antistatic agent, oil, and water is: 0.02-0.027: 0.05-0.065: 0.05-0.065: 12-16. The curing solution is then evenly sprayed onto the flax fibers, sealed, and allowed to stand at room temperature for 36 hours, maintaining a moisture regain of no less than 20%. 2) Combing The combed flax obtained in step 1) is processed into finer fiber bundles through a combing machine to obtain flax fibers in preparation for spinning; 3) Drawing The flax fibers are drawn through a drawing frame, and then drawn again, and then uniformly mixed flax strips are made by using a wide front and narrow back method. The first drawing is 6 strands, the gauge is 45-47 mm, the drafting ratio in the back zone is 1.3-1.45 times, the sliver weight is 23 g / 5 m, and the speed is 312-314 m / min. The second drawing is 4 strands, the drafting ratio in the back zone is 1.24-1.26 times, the gauge is 45 mm, the sliver weight is 22 g / 5 m, and the speed is 345-346 m / min. 4) Woolen The flax strips obtained in step 3) are processed into roving by a roving machine; 5) Spinning The roving is spun using a siro spinning machine, and the quality and evenness of the yarn are controlled during the spinning process; 6) Winding The spun yarn is wound into a yarn; 7) Post-processing The spun yarn is subjected to post-processing, including bleaching, scouring, and drying, to improve the quality of the yarn and adapt to different weaving requirements. Advantages

[0005] The present application adds a fiber stabilizer in the health process of flax fibers to strengthen the molecular structure of flax fibers, thereby improving the tensile strength of flax fibers, and adds oil and water to promote the growth of flax fibers and enhance the spinnability of flax fibers. Then, in the drawing process, a front-wide and back-narrow method is used to make a mixed and uniform flax strip, thereby improving the strength of the flax yarn. DETAILED DESCRIPTION

[0006] To make the technical means, creative features, purposes and effects of the present application easy to understand, the following specific embodiments are further described. EMBODIMENT

[0007] A preparation method of flax spinning, the specific steps are as follows: 1) Preparation of carded flax Flax fibers are extracted from flax stems, and after preliminary processing such as immersion, health, and beating, carded flax is prepared. The health process is as follows: according to the mass percentage, the fiber stabilizer, antistatic agent, oil and water are mixed in a ratio of 0.02:0.05:0.05:12 to form a health liquid, and then uniformly sprayed on the flax fibers and sealed, and kept at room temperature for 36 hours, keeping the moisture regain of flax fibers not less than 20%; 2) Carding The carded flax obtained in step 1) is processed by a gill carding machine to form finer fiber bundles, and the flax fibers are prepared for spinning; 3) Drawing The flax fibers are drawn by a drawing machine to make a mixed and uniform flax strip. The head is fed in 6, the gauge is 45mm, the back zone draft ratio is 1.3 times, the output strip density is 23g / 5m, and the speed is 312m / min. Four are fed in, the back zone draft ratio is 1.24 times, the gauge is 45mm, the output strip density is 22g / 5m, and the speed is 345m / min; 4) Roving The flax strip obtained in step 3) is made into a roving by a roving machine; 5) Spinning The roving is spun by using a siro spinning frame, and the quality and evenness of the yarn are controlled during the spinning process; 6) Winding The spun yarn is wound into a yarn; 7) Post-processing The spun yarn is subjected to post-processing, and the post-processing includes bleaching, scouring and drying, so as to improve the quality of the yarn and adapt to different weaving requirements. Embodiment

[0008] A preparation method of flax spinning, and the specific steps are as follows: 1) Preparation of carded flax Flax fibers are extracted from flax stems, and are subjected to preliminary processing such as immersion, curing, beating and the like to prepare carded flax; the curing process is as follows: a curing liquid is prepared by mixing a fiber stabilizer, an antistatic agent, an oil agent and water in a mass percentage ratio of 0.025:0.06:0.06:14, and then is uniformly sprayed on the flax fibers, which are sealed and kept at room temperature for 36 hours to keep the moisture regain of the flax fibers not less than 20%; 2) Carding The carded flax obtained in step 1) is processed by a gill carding machine to form finer fiber bundles, so as to prepare for spinning; 3) Drawing The flax fibers are drawn by a drawing machine to form mixed and uniform flax slivers; 6 fibers are fed into the drawing machine for head drawing, the gauge is 46 mm, the draft ratio in the rear zone is 1.4 times, the output is 23 g / 5 m, and the speed is 314 m / min; 4 fibers are fed into the drawing machine for second drawing, the gauge is 46 mm, the draft ratio in the rear zone is 1.25 times, the output is 22 g / 5 m, and the speed is 346 m / min; 4) Roving The flax slivers obtained in step 3) are roved by a roving machine to form rovings; 5) Spinning The roving is spun by using a siro spinning frame, and the quality and evenness of the yarn are controlled during the spinning process; 6) Winding The spun yarn is wound into a yarn; 7) Post-processing The spun yarn is subjected to post-processing, and the post-processing includes bleaching, scouring and drying, so as to improve the quality of the yarn and adapt to different weaving requirements. Embodiment

[0009] A preparation method of flax spinning, and the specific steps are as follows: 1) Preparation of carded flax The flax fibers are extracted from flax stems, and after preliminary processing such as dipping, curing, and beating into flax, the flax is combed into flax; the curing process is as follows: the fiber stabilizer, antistatic agent, oil agent, and water are mixed in a proportion of 0.027:0.065:0.065:16 by mass percentage to form a curing liquid, which is then uniformly sprayed on the flax fibers, sealed, and left at room temperature for 36 hours, so that the moisture regain of the flax fibers is maintained at no less than 20%; 2) carding The combed flax obtained in step 1) is processed by a gill carding machine to form finer fiber bundles, and the flax fibers are prepared for spinning; 3) doubling The flax fibers are fed into a doubling machine for head doubling and two doubling, and the flax fibers are evenly mixed to form flax strips; 6 fibers are fed into the head doubling, the gauge is 47 mm, the draft ratio in the rear zone is 1.45 times, the output is 23 g / 5 m, and the speed is 314 m / min; 4 fibers are fed into the two doubling, the draft ratio in the rear zone is 1.26 times, the gauge is 45 mm, the output is 22 g / 5 m, and the speed is 346 m / min; 4) roving The flax strips obtained in step 3) are processed by a roving machine to form roving; 5) spinning The roving is spun by a siro spinning machine, and the quality and evenness of the yarn are controlled during the spinning process; 6), winding The spun yarn is wound to form a yarn; 7) post-processing The spun yarn is post-processed, and the post-processing includes bleaching, scouring, and drying to improve the quality of the yarn and adapt to different weaving needs.

[0010] In the above embodiments 1-3, a fiber stabilizer is added in the curing process of the flax fibers to strengthen the molecular structure of the flax fibers, thereby improving the tensile strength of the flax fibers, and an oil agent and water are added to promote the growth of the flax fibers and enhance the spinnability of the flax fibers.

[0011] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the shown orientation or positional relationship, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0012] Meanwhile, the terms "first", "second", etc. are used only for the purpose of description and do not imply or imply relative importance or imply the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0013] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A method for preparing flax yarn, characterized in that: The specific steps are as follows: 1) Preparation of combed flax Flax fibers are extracted from flax stems and processed into combed flax after preliminary processing. The preliminary processing includes impregnation, curing, and beating. During the curing process, a curing solution is first prepared, which contains a fiber stabilizer, antistatic agent, oil, and water. The curing solution is then evenly sprayed on the flax fibers, sealed, and left to stand at room temperature for 36 hours to maintain a moisture regain of no less than 20%. 2) Combing The combed flax obtained in step 1) is processed into finer fiber bundles through a combing machine to obtain flax fibers in preparation for spinning; 3) Drawing The flax fibers are drawn through a drawing frame for the first and second drawing, and then the flax strips are made into uniformly mixed flax strips by adopting the method of wide at the front and narrow at the back; 4) Woolen The flax strips obtained in step 3) are processed into roving by a roving machine; 5) Spun yarn The roving is spun using a siro spinning machine, and the quality and uniformity of the yarn are controlled during the weaving process; 6) Winding The spun yarn is warped into bobbins to form yarn; 7) Post-processing The spun yarn is post-processed, including bleaching, scouring and drying.

2. The method for preparing flax yarn according to claim 1, characterized in that: In step 1), the ratio of the fiber stabilizer, antistatic agent, oil agent and water in the health liquid is 0.02-0.027: 0.05-0.065: 0.05-0.065: 12-16 by mass percentage.

3. The method for preparing flax yarn according to claim 2, wherein: The mass percentages of the health care solution are: fiber stabilizer, antistatic agent, oil agent and water at 0.025:0.06:0.06:

14.

4. The method for preparing flax yarn according to claim 1, wherein: In step 3), the process parameters of the drawing process are as follows: 6 strands are fed in the first drawing process, the gauge is 45-47 mm, the drafting ratio in the back zone is 1.3-1.45 times, the sliver weight is 23 g / 5 m, and the speed is 312-314 m / min; 4 strands are fed in the second drawing process, the drafting ratio in the back zone is 1.24-1.26 times, the gauge is 45 mm, the sliver weight is 22 g / 5 m, and the speed is 345-346 m / min.