Functional elastic colored point yarn of composite structure and production process thereof

Abstract

The application relates to a functional elastic colored point yarn of a composite structure and a production process thereof, which comprises a colored point yarn body, the colored point yarn body is combined by colored point roving and spun yarn blending, triangular bright polyester fiber is used as the colored point, the colored point is bright and shiny, the elastic core-spun yarn and the Selovier yarn have two yarn structures, the proportion of spandex is relatively high, the yarn has good elasticity, with the contraction of the elastic yarn, the covered filaments are accumulated on the yarn surface to form an effect similar to that of the covered yarn, the single-fiber fineness of the polyester filaments is soft and delicate, has good silky touch, increases the yarn strength and the wear resistance of the yarn, is suitable for the development of sports, yoga and other fabrics, has a unique style, the application has the effects of elastic covering and star point-like gorgeous effect of the cloth surface.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of textiles, in particular to a functional elastic colored point yarn with a composite structure and a production process thereof. BACKGROUND

[0002] Colored point yarn is mainly used for knitting fabric, and the fabric surface presents star point pattern, giving people a beautiful and wonderful feeling.

[0003] Colored point yarn is a kind of yarn with one or more colored points on the original white yarn or colored yarn. The colored points in the yarn have distinct contrast color with the base yarn. The light colored points are matched with dark colored base yarn or the dark colored points are matched with light colored base yarn, which is simply called colored point yarn.

[0004] The colored points are generally made of polyester material, and the shaped colored points are in granular form with smooth surface and tightly combined together. The fabric made of colored point yarn requires that the colored points are randomly and uniformly distributed, beautiful and lively, and the style is fresh. On the basis of the original yarn, the colored point yarn adds strong visual color points. The color matching of the colored point yarn requires that the color hue is prominent, the lightness is beautiful, and the purity is bright.

[0005] At present, the main method for producing colored point yarn is to make the dyed fibers or yarn into point form as colored points, and through spraying or suction means, the colored points are twisted into the surface of the yarn during the twisting of the yarn.

[0006] According to the related technology in the above, the inventors believe that the colored point yarn made by the above method is easy to fall off, and the bottom color dyeing and the colored point dyeing are separated in the production process, and the production efficiency is low. SUMMARY

[0007] In order to improve the technical problems that the colored point yarn is easy to fall off, the bottom color dyeing and the colored point dyeing are separated in the production process, and the production efficiency is low, the present application provides a functional elastic colored point yarn with a composite structure and a production process thereof.

[0008] In a first aspect, a production process of a functional elastic colored point yarn with a composite structure adopts the following technical scheme:

[0009] The production process of the functional elastic colored point yarn with a composite structure comprises the following steps:

[0010] S1, production of colored point fibers: the dyed raw material is sent into a cotton feeder, then into a lap former to form a cotton lap, and the cotton lap is sent into a carding machine. The raw material is rubbed in the carding machine to form colored point fibers;

[0011] S2, making of colored point slivers:

[0012] a, raw material preparation: the raw material is mixed fiber, the mixed fiber is composed of anti-bacterial nylon and ordinary fiber by weighing and mixing, the proportion of the anti-bacterial nylon and the ordinary fiber in the mixed fiber is 40-60:60-40,

[0013] b, cleaning process: the mixed fiber is processed by the picking machine, the open cotton machine and the cleaning machine, and then is mixed into the cotton box of the gilling machine,

[0014] c, fiber mixing: the colored point fiber produced in step S1 is mixed into the gilling machine to make the colored point fiber and the mixed fiber uniformly combined and distributed, the proportion of the mixed fiber and the colored point fiber is 90-99:10-1,

[0015] e, carding processing: the cotton roll composed of the colored point and the mixed fiber is transported to the carding machine to produce carded sliver;

[0016] S3, production of ordinary sliver:

[0017] a, raw material preparation: the raw material is anti-bacterial nylon and ordinary fiber by dyeing processing, the anti-bacterial nylon and the ordinary fiber are mixed by weighing, the mixed proportion of the anti-bacterial nylon and the ordinary fiber is 40-60:60-40,

[0018] b, cleaning process: the mixed anti-bacterial nylon and ordinary fiber enters the cleaning process,

[0019] c, carding processing: the mixed anti-bacterial nylon and ordinary fiber after the cleaning processing enters the carding processing to produce carded sliver;

[0020] S4, production of colored point roving:

[0021] a, drawing processing: the colored point sliver produced in step S2 and the ordinary sliver produced in step S3 are mixed on the drawing machine,

[0022] The colored point sliver and the ordinary sliver process are fed into the first drawing machine at a set matching ratio, and after three drawing processes, the colored point sliver is formed, and the colored point is uniformly distributed in the sliver,

[0023] b, roving processing: the roving twist factor is increased by 3-10% compared with the non-colored point roving during the colored point roving processing;

[0024] S5, spinning processing:

[0025] a, raw material preparation: the colored point roving made in step S4, the dyed polyester filament, and the spandex filament, b, the colored point roving, the dyed polyester filament, and the spandex filament are fed into the spinning machine, the colored point roving is fed into the spinning machine from the back roller, and the spandex filament is fed into the spinning machine from the middle left of the front roller sliver by 1-2 mm, and the polyester filament is fed into the spinning machine from the right side of the front roller sliver by 3-5 mm, so as to obtain a functional elastic colored point yarn with a composite structure of elastic core-spun structure and seersucker structure.

[0026] By using the above technical scheme, the dyed raw material is used in the cotton machine, and the colored point fiber is formed through the rubbing process of the carding machine and has special color and texture; the colored point sliver is prepared by mixing the colored point fiber and the antibacterial nylon fiber, and the yarn is endowed with antibacterial performance; the ordinary sliver includes the dyed antibacterial nylon and ordinary fiber, and different functional characteristics of the sliver are formed; the colored point sliver and the ordinary sliver are mixed on the drawing frame, and the colored point roving is formed, in which the colored points are uniformly distributed in the sliver. During the roving processing, the twist factor is controlled to make the yarn have better elasticity; the colored point roving, the dyed polyester filament, and the spandex filament are used for spinning, so that the yarn has the elastic core-spun structure and the seersucker structure; the colored points are uniformly distributed in the yarn to form a unique colored point pattern, and the artistic sense and attraction of the textile are increased; the antibacterial nylon endows the yarn with antibacterial performance, and the hygiene of the fabric is improved; through the control of the twist factor and the setting of the spinning machine, the yarn has better elasticity, and the fabric has better stretchability and wearing comfort; the final yarn has a composite structure and has the properties of elastic core-spun and seersucker, and the quality and function of the fabric are increased.

[0027] Optionally, the distance between the carding machine's licker-in roller and the cylinder is increased.

[0028] By using the above technical scheme, the colored point fiber and the mixed fiber are better mixed, the colored point fiber and the mixed fiber are more uniformly combined and distributed in the carding machine, the uniformity of the mixed fiber is improved, the mechanical damage to the colored point fiber during the carding machine processing is reduced, the integrity of the colored point fiber is maintained, the number of the colored point fiber entering the noil is controlled, the loss of the colored point fiber is reduced, the retention of the colored point fiber and the quality of the fiber are improved, the softness of the fiber is improved, and superior conditions are provided for producing the functional elastic colored point yarn.

[0029] Optionally, the carding machine is reversely installed, and the distance between the cover plate and the cylinder is increased.

[0030] By adopting the above technical solutions, the reverse cover plate and the increased cover plate and cylinder spacing change the movement path of the fibers in the carding machine, which helps to better mix the fibers, improve the uniformity of fiber mixing, reduce the electrostatic adsorption of fibers in the carding machine, prevent the adhesion between fibers, reduce the fiber binding, improve the flowability and uniformity of fibers, and reduce the friction and mechanical damage of fibers in the carding machine. This helps to maintain the integrity and length of the fibers, reduce the risk of breakage, and improve the carding effect.

[0031] Optionally, during the production of the colored sliver, the cylinder included in the feeding roller is 280-300 rpm, the taker-in is 780-900 rpm, the cover plate speed is 70-90 mm / min, and the doffer speed is not more than 23 r / min.

[0032] By adopting the above technical solutions, the speed of the taker-in and the cover plate is slowed down, and the processing mode of the fibers in the carding machine is changed, which helps to produce soft colored sliver. Adjusting the speed of the feeding roller, cylinder, taker-in, and cover plate controls the distribution of the colored points in the fibers, which is beneficial to form a uniform and expected colored point pattern, increases the aesthetic appearance of the textile, and slows down the speed of the feeding roller, cylinder, taker-in, and cover plate, which helps to reduce the breakage of colored point fibers during processing, improve the integrity of the colored point fibers, reduce the scrap rate, and limit the doffer speed to not more than 23 r / min, which helps to smoothly run the fibers during production and reduces unnecessary mechanical damage.

[0033] Optionally, the spacing between the taker-in and the dust removal knife of the carding machine is greater than 0.38 mm,

[0034] The spacing between the cylinder and the cover plate is 0.05-0.15 mm,

[0035] The spacing between the taker-in and the cylinder is 0.25 mm,

[0036] The spacing between the doffer and the cylinder is 0.2 mm.

[0037] By adopting the above technical solutions, the spacing between the cylinder and the cover plate is limited to prevent excessive blocking of colored points, the spacing between the taker-in and the cylinder is limited to reduce the carding effect on colored points, and the spacing between the doffer and the cylinder is limited, which helps to prevent the fibers from being too dense during processing, thereby reducing the jamming and entanglement of the fibers, reducing electrostatic adsorption, and improving the flowability and uniformity of the fibers.

[0038] Optionally, the ordinary fiber is modal fiber.

[0039] By adopting the above technical solutions, the colored point yarn produced may be softer, providing a more comfortable wearing feeling and good moisture absorption, and having good ecological sustainability.

[0040] Optionally, the pre-drafting multiple of the spandex yarn is 3.5-6.0 times, and the content ratio of the spandex yarn is 10-25%; the content of the dyeing processed polyester filament is 10-20%, the single filament fineness of the polyester filament is not more than 0.5 dtex, and the content of the colored roving is 80-55%.

[0041] By adopting the above technical solution, the high elasticity of the spandex yarn is realized by adjusting the pre-drafting multiple, the colored yarn has good elasticity and stretchability, the comfort and elasticity of the textile are improved, the content of the dyeing processed polyester filament and the content of the colored roving are adjusted, the colorful colored effect is formed, the spandex yarn has excellent wrinkle resistance and durability, the service life of the colored yarn is increased, and the wear and tear and wrinkles caused by use are reduced.

[0042] In a second aspect, the application provides a functional elastic colored yarn with a composite structure, which adopts the following technical solution: a functional elastic colored yarn with a composite structure, comprising a colored yarn body, the colored yarn body comprising colored roving and fine yarn, and the colored roving and fine yarn are combined by blending.

[0043] By adopting the above technical solution, the colored yarn body adopts blending combination, the colored roving and fine yarn are mixed, the elasticity and softness of the colored yarn body can be realized, the comfort of the fabric is improved, the fabric is more suitable for body bending and stretching, the interweaving of the blended combination of the colored roving and fine yarn forms a unique colored effect, creates a more rich, complex and unique pattern, increases the artistic and attractive of the fabric, realizes the uniform mixing of different fibers, the color and texture of the colored yarn body are evenly distributed in the entire fabric, improves the uniformity of fiber mixing, realizes the enhancement of functionality, makes the fabric have more practicality and applicability, increases the strength and wear resistance of the fabric, prolongs its service life, and provides more performance and appearance options.

[0044] Optionally, the colored roving comprises colored sliver and ordinary sliver, and the colored sliver and ordinary sliver are mixed on the drawing.

[0045] By adopting the above technical solution, the colored sliver contains colored fibers, the uniform distribution of colors in the colored roving is realized by mixing with ordinary sliver, a uniform and coordinated pattern of colored points in the fabric is formed, the interweaving of different fibers forms rich and colorful textures and patterns, the artistic and attractive of the fabric is improved, different types and colors of sliver are selected to provide greater flexibility and diversified colored roving, and different design and market demands are met.

[0046] Optionally, the colored sliver comprises colored fibers, and the raw material of the colored fibers is dyed bright polyester fiber.

[0047] By adopting the above technical scheme, the colored sliver has a unique luster effect, improves the appearance quality and visual appeal of the fabric, has bright and long-lasting colors, and has the soft hand feeling of the bright polyester fiber, so that the colored sliver is softer and the comfort of the fabric is improved. The bright polyester fiber is used as the colored fiber raw material of the colored sliver, which increases the wear resistance of the colored fabric and reduces wear caused by use.

[0048] In summary, the present application includes at least one of the following beneficial technical effects:

[0049] 1. The colored yarn body uses dyed raw materials in the cotton machine, combines the rubbing process of the cotton carding machine, forms colored fibers, and has special colors and textures; colored slivers are prepared by mixing colored fibers and antibacterial nylon fibers, which give the yarn antibacterial properties; ordinary slivers include dyed antibacterial nylon and ordinary fibers, forming slivers with different functional characteristics; the colored sliver and the ordinary sliver are mixed on the drawing frame to form a colored roving with colored points evenly distributed in the sliver. During roving processing, controlling the twist factor can make the yarn have better elasticity; using colored roving, dyed polyester filaments, original color polyester filaments, and spandex filaments for spinning results in yarns with elastic core-spun structure and seersucker yarn structure; the colored points are evenly distributed in the yarn, forming a unique colored pattern, increasing the artistic feeling and appeal of the textile; antibacterial nylon gives the yarn antibacterial properties, improving the hygiene of the fabric; by controlling the twist factor and the settings of the spinning machine, the yarn has better elasticity, making the fabric more stretchy and comfortable to wear; the final yarn has a composite structure, with the properties of elastic core-spun and seersucker yarn, increasing the quality and functionality of the fabric.

[0050] 2. Rich colors: The use of colored fibers and mixed fibers in the production process, as well as the use of different types and colors of slivers in the colored roving, achieves uniform distribution of colored points in the fabric, forming a rich and colorful pattern and texture.

[0051] 3. Antibacterial properties: By mixing antibacterial nylon in the colored sliver, the antibacterial properties of the colored yarn are increased, improving the hygiene of the fabric, making it suitable for textiles that require antibacterial functionality.

[0052] 4. Soft and comfortable: By adjusting the twist factor of the colored roving, the yarn has better elasticity, improving the softness and comfort of the fabric.

[0053] 5. Artistic feeling and appeal: Through blending and combination, the interweaving of colored roving and yarn forms a unique colored effect, increasing the artistic nature and appeal of the fabric, making it more visually striking.

[0054] 6. Improved wear resistance: Using dyed triangular bright polyester fibers as the colored sliver fiber raw material for the colored point sliver improves the brightness of the colored points and the wear resistance of the colored point fabric, reducing wear caused by use.

[0055] 7. Functional elasticity: Adding spandex yarn in the spinning and controlling the pre-draft ratio achieves a yarn with elastic core-spun structure and seersucker yarn structure, improving the elasticity and stretchability of the fabric.

[0056] 8. Ecological sustainability: Selecting modal fiber as the common fiber improves the ecological sustainability of the fabric and increases the environmental friendliness of the fabric.

[0057] 9. Fiber uniformity: Adjusting the gauge between the taker-in cylinder and the cylinder and the gauge between the flat and the cylinder in the carding machine achieves uniform mixing of the fibers in the carding machine, reducing mechanical damage and improving fiber uniformity.

[0058] 10. Improved durability: By controlling the parameters of the carding machine, fiber breakage and damage are reduced, improving the durability of the colored point yarn and extending the service life of the fabric. DETAILED DESCRIPTION

[0059] The application is further described in detail below in conjunction with the examples.

[0060] The application discloses a production process for functional elastic colored point yarn with a composite structure, including the following steps:

[0061] S1, Production of colored point fiber: After the dyed raw material is fed into the gilling machine, the raw material enters the lap former, the output of the lap former is fed into the carding machine, and the raw material is rubbed in the carding machine to form colored point fiber. The production process of colored points is: raw material→gilling machine→lap former→carding machine→colored point. The raw material is dyed triangular bright polyester fiber 1.33dtex×44mm. The technical core of producing colored points is carding: the fiber is required to produce strong "rubbing" effect in the carding machine to form colored points. The carding machine for producing colored points requires:

[0062] (1) The carding element should not have good sharpness, and the fiber gripping ability of the needle tooth should not be too strong, so that the fiber can be rubbed for a longer time in the working area;

[0063] (2) Increase the gauge between the taker-in cylinder and the cylinder, and moderately reduce the taker-in ratio, so that the fiber transfer ability from the taker-in cylinder to the cylinder is weakened, forming taker-in return, and the fiber carried by the taker-in is rubbed with the newly fed fiber to form loose neps;

[0064] (3) Reverse the flat, and increase the gauge between the flat and the cylinder, to strengthen the rubbing of the flat on the cylinder neps, so as to further tighten the density of the neps, and the fiber will be repeatedly rubbed between the two needle surfaces to form colored points;

[0065] The formation and morphology control part of the color dots is mainly in the work area between the cylinder and the flat, the fiber stays in the area between the cylinder and the flat for more times and less transfer, so the distance between the cylinder and the flat is enlarged, the distance is set to 0.50-0.75mm, the distance between the cylinder and the doffer is set to 1.0-2.0mm, so as to reduce the transfer rate of the doffer ≤10%, so that the fiber enters the work area between the cylinder and the flat for more times, and is rubbed into more compact color dots before being transferred to the doffer;

[0066] S2, production of the color dot sliver:

[0067] 1. Raw material preparation: the raw material is color dot fiber and mixed fiber, the mixed fiber is composed of anti-bacterial nylon 1.33dtex*38mm processed by dyeing and ordinary fiber by weighing mixing, the ordinary fiber is modal fiber 1.33dtex*38mm, the proportion of the anti-bacterial nylon in the mixed fiber to the ordinary fiber is 40-60:60-40, the mixed fiber is first mixed by weighing and then enters the scutcher process, the production process of the color dot sliver:

[0068]

[0069] b. Scutcher process: the mixed fiber is processed by the grabber, the mixing opener and the scutcher, and then is mixed into the cotton box of the gigger,

[0070] c. Fiber mixing: the color dot fiber produced in step S1 is mixed into the gigger to make the color dot fiber and the mixed fiber uniformly combined and distributed,

[0071] d. The mixed color dot fiber and the mixed fiber are sent to the lap former,

[0072] e. Fiber loosening: the cotton lap composed of the color dot and the mixed fiber is transported to the carding machine, the mixed fiber is processed by the grabber, the mixing opener and the scutcher, and then is mixed into the cotton box of the gigger, the produced color dot is mixed into the cotton box of the gigger again, the color dot and the ordinary fiber are tumbled and mixed in the cotton box, the color dot is uniformly distributed in the cotton lap, the cotton lap composed of the color dot fiber and the mixed fiber is loosened by the carding needle, the dust rod of the single beater is closed to prevent the color dot from being damaged and falling into the belly of the machine, the quantity of the loosened cotton lap is 360-400g / m, the proportion of the mixed fiber to the color dot fiber is 90-99:1-10;

[0073] When the color dot sliver is produced, the color dot exists in the cotton web, the sliver quantity is controlled to be larger, the cohesion of the cotton web to the color dot is improved, the broken web and the fallen web are reduced, and the commonly used sliver quantity is designed to be about 24-28g / 5m,

[0074] When producing the colored sliver, the speed of the cotton roller should be slow, the cylinder speed is 280-300 rpm, the taker-in speed is 780-900 rpm, the flat speed is 70-90 mm / min, and the doffer speed should be slow, not more than 23 r / min. If the flat speed is reduced, the flat will contain more colored points, and the cotton web will not be difficult to form. A cotton web support plate is used,

[0075] (1) The taker-in-dust knife clearance is more than 0.38 mm to prevent too many colored points from falling,

[0076] (2) The cylinder-flat clearance is 0.05-0.15 mm to reduce the carding effect on the colored points,

[0077] (3) The taker-in-cylinder clearance is 0.25 mm,

[0078] (4) The doffer-cylinder clearance is 0.2 mm;

[0079] S3, production of ordinary sliver:

[0080] a. Raw material preparation: the raw material is dyed and processed antibacterial nylon and ordinary fiber, and the antibacterial nylon and ordinary fiber are weighed and mixed, and the mixing ratio of the antibacterial nylon and ordinary fiber is 40-60:60-40,

[0081] b. Cleaning process: the mixed antibacterial nylon and ordinary fiber enters the cleaning process,

[0082] c. Carding process: the mixed antibacterial nylon and ordinary fiber enters the carding process after the cleaning process,

[0083] S4, production of colored roving:

[0084] a. Drawing process: the colored sliver obtained in step S2 is mixed with the ordinary sliver obtained in step S3 on the drawing frame,

[0085] The colored sliver and the ordinary sliver process are fed into the first drawing frame at a set mixing ratio, and after three drawing processes, the colored sliver is formed, and the colored points are evenly distributed in the sliver. In the three processes, the number of colored points in the mustache is large, which makes the stretching process prone to winding the roller. The roller speed can be adjusted and reduced, and the drawing stretch is appropriately enlarged to improve the directional straightness of the fiber, and the trumpet caliber is controlled to prevent blockage and breakage,

[0086] b. Roving process: when the colored roving is processed, the colored roving adopts a larger roving twist factor, which is controlled at a twist factor of 60-70. The twist factor is increased by 3-10% compared with the ordinary yarn, so that the colored points can be tightly wrapped in the sliver. Control the elongation of the roving to improve the stability of the fine yarn drawing;

[0087] S5, fine yarn production and processing:

[0088] c. Raw material preparation: the colored point roving made in step S5, the dyed processed DTY polyester 30d / 108f filament, and spandex filament 140D are fed into the spinning machine, the colored point roving is fed into the spinning machine from the back roller, and the spandex filament is fed into the spinning machine from the left side of the front roller, 1-2 mm away from the center of the front roller, to realize the core-spun yarn structure, and the polyester filament is fed into the spinning machine from the right side of the front roller, 3-5 mm away from the front roller, to realize the Sirofil spun yarn structure, so as to obtain a functional elastic colored point yarn with a composite structure of the elastic core-spun structure and the Sirofil spun yarn structure.

[0089] The pre-draft ratio of the spandex filament is 3.5-6.0 times, and the content ratio of the spandex filament is 10-25%; the content of the dyed processed polyester filament is 10-20%, and the content of the colored point roving is 80-55%.

[0090] Number: 19.5 tex;

[0091] Roving weight: 5.5 g / 10 m, twist factor: 65,

[0092] Spinning process: roller gauge: 18x36 mm,

[0093] Gauge block: 3.0 mm, back zone draft ratio: 1.2 times

[0094] The pre-draft ratio of the spandex filament is 4.5 times,

[0095] Spindle speed: 13500 r / min;

[0096] Twist factor: 365,

[0097] Ring size: PG1-4254,

[0098] Steel ring: 6802 2 / 0,

[0099] The functional elastic colored point yarn with a composite structure has the following characteristics: Sirofil spun yarn, colored points have luster, the fiber length is in the range of 38 mm to 48 mm, the fiber at the tail end of the colored point particle is easily spun into the yarn body and is not easy to fall off, and the colored points are effectively bound by the outer wrapping filament due to the Sirofil yarn design, so that the stability of the colored points is improved and the colored points are reduced.

[0100] The implementation principle of the production process of the functional elastic colored point yarn with a composite structure according to the embodiment of the application is as follows:

[0101] 1. Dyeing raw materials are used to form colored point fibers through the processing of the cotton feeder, the coiling machine, and the carding machine.

[0102] 2. The colored point fiber is mixed with ordinary fiber in the cotton box ginning machine, and the colored point sliver is formed through the processing of the lap former and the carding machine;

[0103] 3. The raw material of the ordinary sliver includes the antibacterial nylon fiber and the ordinary fiber, and the mixed fiber is formed through the cleaning process and the carding process, and the ordinary sliver is formed through the processing of the lap former and the carding machine;

[0104] 4. The colored point sliver and the ordinary sliver are mixed on the drawing frame to form the colored point roving, and the colored point roving is used to spin the colored point yarn on the roving frame;

[0105] 5. The colored point roving, the dyed polyester filament and the spandex filament are used to produce the spun yarn, the elastic core structure and the plating filament yarn structure are realized by setting the parameters of the spinning machine, and the functional elastic colored point yarn with the composite structure is formed.

[0106] The embodiment of the application further discloses a functional elastic colored point yarn with a composite structure.

[0107] The embodiment of the application is a functional elastic colored point yarn with a composite structure.

[0108] 1. The colored point roving is one of the main components of the colored point yarn, and is formed by mixing and combining the colored point sliver and the ordinary sliver; the spun yarn is another component, and is mixed and combined with the colored point roving to form the final colored point yarn body with the composite structure;

[0109] 2. The colored point sliver includes the colored point fiber made of the dyed bright polyester fiber, the colored point fiber is uniformly distributed in the sliver, and the characteristics of the colored point are retained; the ordinary sliver includes the modal fiber, and the ordinary sliver is formed through the processing steps such as carding;

[0110] 3. The colored point sliver and the ordinary sliver are mixed and combined on the drawing frame to form the colored point roving, and the colored point roving is used to spin the colored point yarn on the roving frame, so that the colored point is uniformly distributed in the entire yarn;

[0111] 4. The raw material of the spun yarn includes the colored point roving, the dyed bright polyester filament and the spandex filament, the yarn is spun through the spinning machine, the spandex filament forms the core structure, the colored point is bound by the external wrapping filament, the stability of the colored point is improved, and the falling off is reduced.

[0112] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. A manufacturing process for a composite structure functional elastic dotted yarn, characterized in that: Includes the following steps: S1. Production of colored fiber: After the dyed raw material is fed into the cotton feeding machine, it enters the lap forming machine to form cotton laps. The cotton laps are then fed into the carding machine, where the raw material is rubbed to form colored fiber. S2. Making colored dotted strips: Raw material preparation: The raw material is a blend of fibers, which is composed of dyed antibacterial nylon and ordinary fibers, weighed and mixed. The ratio of antibacterial nylon to ordinary fibers in the blend is 40-60:60-40. Opening process: After being processed by a cotton grabber, cotton opener, and cotton cleaner, the mixed fibers are mixed into the cotton box of the cotton feeder. Fiber blending: The colored fiber produced in step S1 is mixed into the cotton box feeder to ensure that the colored fiber and the blended fiber are evenly distributed. The ratio of blended fiber to colored fiber is 90-99:10-11. The mixed colored fibers and blended fibers are fed into a single-beater lap machine. The dust bar below the combined beater of the single-beater lap machine is sealed, and the lap weight is controlled at 360-400 g / m. Carding process: The cotton lap composed of colored dots and mixed fibers is fed to the carding machine to produce carded sliver; S3, Preparation of regular raw strips: Raw material preparation: The raw materials are dyed and processed antibacterial nylon and ordinary fiber. The antibacterial nylon and ordinary fiber are weighed and mixed in a ratio of 40-60:60-40. Opening process: A mixture of antibacterial nylon and ordinary fibers enters the opening process. Carding process: The blend of antibacterial nylon and ordinary fibers is processed through opening and then enters the carding process to produce carded sliver; S4. Production of dotted roving: Drawing process: The colored green sliver obtained in step S2 and the ordinary green sliver obtained in step S3 are mixed on a drawing machine. Colored raw strips and ordinary raw strips are fed into the first drawing machine in a set ratio. After three drawing processes, they are combined to form colored cooked strips, with the colored dots evenly distributed throughout the strips. Roving processing: When processing roving with colored dots, the roving twist coefficient is increased by 3-10% compared to non-colored dot roving; S5. Fine yarn production and processing: Raw material preparation: the colored roving obtained in step S4, dyed polyester filaments, and spandex yarns. Colored roving, dyed polyester filament, and spandex filament are fed into a spinning machine. The colored roving is fed from the back roller of the spinning machine and forms a sliver at the front roller after drafting. The spandex filament is fed from the middle of the sliver at the front roller of the spinning machine, 1-2 mm to the left. The polyester filament is fed from the right side of the sliver at the front roller of the spinning machine, 3-5 mm away from the sliver. The resulting yarn has a composite structure of elastic core-spun structure and serofil yarn structure, which is a functional elastic colored roving yarn. During the production of the colored dot sliver, the cylinder of the feeding roller is 280-300 rpm, the licker-in roller is 780-900 rpm, the flats speed is 70-90 mm / min, and the doffer speed does not exceed 23 r / min. The carding machine has a licker-in roller and dust removal knife distance greater than 0.38 mm, a cylinder and cover plate distance of 0.05-0.15 mm, a licker-in roller and cylinder distance of 0.25 mm, and a doffer and cylinder distance of 0.2 mm.

2. The production process of the composite structure functional elastic dotted yarn according to claim 1, characterized in that: The carding machine requires reverse-mounted cover plate and carding cloth.

3. The production process of the composite structure functional elastic dotted yarn according to claim 1, characterized in that: The common fiber is modal fiber.

4. The production process of the composite structure functional elastic dotted yarn according to claim 1, characterized in that: The spandex filament has a pre-draw ratio of 3.5-6.0 times and a spandex filament content of 10-25%; the dyed polyester filament content is 10-20%, and the colored roving content is 80-55%.

5. The production process of a composite structure functional elastic dotted yarn according to claim 1, characterized in that: The dotted sliver includes dotted fibers, and the raw material for the dotted fibers is dyed triangular bright polyester fiber.

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