Production process of modified tussah fiber spun high count yarn based on cotton spinning equipment

Abstract

The invention discloses a production process for spinning high count yarns by using modified tussah fibers based on cotton spinning equipment, relates to the technical field of spinning processes, and solves the technical problem that the spinning effect cannot be improved based on spinning of a cotton spinning machine in the existing technical scheme. Comprising the steps of raw material preparation, tussah short fiber modification treatment, fiber mixing, opening treatment, cotton carding treatment, drawing treatment, drafting treatment, spinning production and quality inspection and packaging, cotton spinning equipment is innovatively used for spinning modified tussah fibers, the application range of the tussah fibers is remarkably expanded, high-count yarn can be spun through the process, and the quality of the high-count yarn is improved. According to the tussah fibers, the number of the tussah fibers can reach 200 or above, the production requirements of high-end textiles are met, finer and higher-quality yarns are provided, the flexibility and tensile strength of the tussah fibers are remarkably improved through modification treatment, meanwhile, the shrink-proof performance of the fibers is improved through coating treatment, and it is ensured that the quality of the yarns is stable.

Description

Technical Field

[0001] The present invention relates to the technical field of spinning, and specifically to a production process for spinning high-count yarns from modified tussah fibers based on cotton spinning equipment. Background Art

[0002] The technical field related to the present invention, the production process for spinning high-count yarns from modified tussah fibers based on cotton spinning equipment is an innovative technology, which solves the limitation that tussah fibers can only be spun by silk spinning equipment traditionally. By using cotton spinning equipment to spin modified tussah staple fibers and colored cotton composite fibers, this process realizes the precise production of high-count yarns, and the count can reach more than 200 counts. This technology not only improves the fiber flexibility and tensile strength, but also ensures the stability of yarn properties through precise proportion control and shrinkage prevention treatment, providing high-quality raw materials for high-end textiles. In addition, the yarns produced by this process have both environmental protection and high-performance characteristics, meeting the market demand for green and high-quality textiles.

[0003] This process is of great significance. It breaks through the limitations of traditional processes, realizes a significant optimization of production efficiency and cost, provides technical support for the large-scale combination of modified tussah fibers and colored cotton, and significantly broadens its application fields. The spun yarns can be widely used in the production of high-end clothing design and home textile products, and have been recognized by consumers for their softness, comfort, shrinkage prevention and durability. At the same time, by adopting an efficient and environmentally friendly production method, it significantly reduces resource waste and environmental burden, and promotes the sustainable development of the textile industry. This technology not only promotes the technological upgrading of the textile industry, but also lays a foundation for the further popularization of environmentally friendly textiles.

[0004] The existing technical solutions have the technical problem that the spinning effect cannot be improved based on cotton spinning machines. Content of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a production process for spinning high-count yarns from modified tussah fibers based on cotton spinning equipment, which solves the technical problem that the existing technical solutions cannot improve the spinning effect based on cotton spinning machines.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A production process for spinning high-count yarns from modified tussah fibers based on cotton spinning equipment, this preparation process is based on cotton spinning equipment and includes the following steps:

[0007] Step 1: Select tussah staple fibers and colored cotton; the tussah staple fibers are processed by pre-screening the short fiber varieties; the natural colored cotton is undyed environmentally friendly cotton fibers; the tussah staple fibers and the colored cotton are weighed according to the production requirements and then prepared;

[0008] Step 2: The tussah staple fiber is subjected to modification treatment. First, the tussah staple fiber is immersed in a softening agent solution and treated at room temperature for 20 - 40 minutes to make the fiber surface have better flexibility; the soaked fiber is dried at a low temperature to improve the tensile strength of the fiber; the fiber is subjected to surface coating treatment, and the shrinkage resistance performance is further improved by coating a shrinkage inhibitor, and the concentration of the coating agent is controlled within the range of 2% to 5%;

[0009] Step 3: The modified tussah staple fiber is fully mixed with colored cotton. During the mixing process, a drum - type tumbling device and a stirring structure are used for uniform stirring and mixing. The mixing operation time is 50 - 70 minutes each time, and at the same time, frequency adjustment is carried out to ensure the uniform distribution of the fibers during the mixing process; the mixing operation is repeated twice to ensure the uniformity of the fiber composition ratio;

[0010] Step 4: The mixed fibers are sent to a carding machine for carding treatment to loosen the fiber mass, make it fully separated to avoid agglomeration, and at the same time remove impurity particles such as dust and lint; the output fibers after carding treatment must be kept in a loose and uniform state to provide a basic fiber structure for subsequent spinning;

[0011] Step 5: The carded fibers enter a comber and are processed through the action of the comb needles. Impurity residues are removed in the preliminary combing stage, and then the fibers are further sorted into a fiber web form through the combing operation. During the combing process, the fiber quantitative output is controlled to ensure uniform fiber orientation;

[0012] Step 6: The combed fiber web is processed by a drawframe multiple times. The repeated drawing process of the fiber strips is set to three times to improve the uniformity of the fiber strips and enhance the overall strength of the fibers, ensuring that the fiber strips have a consistent density and directionality;

[0013] Step 7: The drawn fiber strips are drawn through a drafting device. The drafting device adopts a two - zone drafting process; during the drafting process, it is ensured that the fiber strips are stretched to meet the requirements of high - count yarn spinning, while avoiding physical damage to the fibers, and screening out defective products;

[0014] Step 8: The drawn fiber strips are sent to the spinning process. The spinning equipment operates based on cotton spinning machine technology to produce 200 - count high - count yarns; during the spinning process, the fiber adhesion and surface uniformity are key - controlled to ensure that the yarn quality meets the requirements of high - end fibers;

[0015] Step 9: The finished product is subjected to quality inspection and then wound and packaged.

[0016] Preferably, in the modification treatment step of the tussah staple fiber, while softening the fiber surface, the strength of the inner lining structure is improved, and its softening effect can be adjusted according to different requirements to balance the natural flexibility and tensile strength of the fiber.

[0017] Preferably, the finished product quality inspection in step 9 includes tensile strength quality inspection; shrinkage prevention performance quality inspection; count measurement; and appearance uniformity.

[0018] Preferably, during the drawing process, the fiber sliver is drawn at least three times to ensure the integrity of fiber arrangement.

[0019] Preferably, in the drafting processing stage, the double-zone drafting process is used, and the drafting speed is adjusted in the range of 400 m / min to 600 m / min to maximize the fiber quality.

[0020] Preferably, during spinning, the spinning speed needs to be maintained stably above 500 m / min to ensure uniform formation of the yarn and avoid excessive fiber tension.

[0021] Preferably, in step 1, the colored cotton is natural colored cotton, and its color does not require additional dyeing treatment, directly meeting the requirements of environmental protection and healthy textiles.

[0022] Preferably, in the tensile strength quality inspection, a tensile testing machine is used to test the tensile performance of the yarn, and the yarn needs to meet at least the tensile standard of 30 N.

[0023] Preferably, in the shrinkage prevention performance quality inspection, the dimensional stability of the yarn is verified through an immersion test. The immersion time is set to 30 minutes, and the swelling rate needs to be lower than 5%.

[0024] Preferably, in the count measurement, a precision measuring instrument is used to determine the count of the yarn to ensure that the spinning count of the yarn reaches 200 counts.

[0025] Beneficial effects

[0026] The present invention provides a production process for spinning high-count yarn from modified tussah fiber based on cotton spinning equipment. The process of the present invention innovatively uses cotton spinning equipment to spin modified tussah fiber, significantly expanding the application range of tussah fiber. This process can spin high-count yarn, with the count reaching over 200 counts, meeting the production requirements of high-end textiles, providing finer and higher-quality yarn. Through modification treatment, the flexibility and tensile strength of tussah fiber are significantly improved. At the same time, the coating treatment improves the shrinkage prevention performance of the fiber, ensuring stable yarn quality. Using natural colored cotton as raw material, without additional dyeing treatment, it meets the requirements of environmental protection and healthy textiles, reducing environmental pollution in the dyeing process. Using cotton spinning equipment and optimized production processes significantly improves production efficiency and reduces the high cost and low efficiency problems of traditional spun silk equipment. Description of the drawings

[0027] Figure 1 It is a schematic diagram of the steps of the production process for spinning high-count yarn from modified tussah fiber based on cotton spinning equipment described in the present invention. Detailed implementation manners

[0028] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. The detailed description is as follows.

[0029] See also Figure 1 The present invention provides a technical solution: a production process for spinning high-count yarn from modified tussah fiber based on cotton spinning equipment. The preparation process is based on cotton spinning equipment and includes the following steps:

[0030] Step 1: selecting tussah staple fibers and colored cotton; the tussah staple fibers are pre-screened for short fiber varieties; the natural colored cotton is undyed environmentally friendly cotton fiber; the tussah staple fibers and the colored cotton are weighed and prepared according to the production requirements;

[0031] Step 2: The tussah staple fibers are modified by first soaking the tussah staple fibers in a softening agent solution and treating them at room temperature for 20-40 minutes to make the fiber surface more flexible; drying the soaked staple fibers at low temperature to improve the tensile strength of the fibers; and coating the fibers with a surface coating agent to further improve the shrinkage resistance, wherein the concentration of the coating agent is controlled within a range of 2% to 5%;

[0032] Step 3: Fully mix the modified tussah staple fiber and colored cotton. The mixing process uses a drum-type tumbling device and a stirring structure to evenly mix and mix. The mixing operation time is 50-70 minutes. At the same time, the frequency is adjusted to ensure the uniform distribution of the fibers during the mixing process. Repeat the mixing operation twice to ensure a uniform ratio of fiber components.

[0033] Step 4: Send the mixed fibers to the opening machine for opening treatment, loosen the fiber clusters, separate them fully to avoid agglomeration, and remove impurity particles such as dust and fiber short fibers; the output fibers after the opening treatment must remain loose and uniform to provide the basic fiber structure for subsequent spinning;

[0034] Step 5: The opened fibers enter the carding machine and are processed by the combing needle action. The impurities are removed in the initial combing stage, and then the fibers are further arranged into a fiber web form through the combing operation. The quantitative output of the fibers is controlled during the combing process to ensure uniform fiber orientation;

[0035] Step 6: The carded fiber web is processed multiple times through a drawing frame, and the repeated drawing process of the fiber strips is set to three times to improve the uniformity of the fiber strips and enhance the overall strength of the fiber, ensuring that the fiber strips have consistent density and directionality;

[0036] Step 7: The drawn sliver is drawn by a drafting device which adopts a two-zone drafting process; during the drafting process, it is ensured that the sliver is stretched to meet the requirements of high-count yarn spinning, while avoiding physical damage to the fibers, and defective products are screened out.

[0037] Step 8: The drawn sliver is fed into the spinning process, and the spinning device operates based on cotton spinning machine technology to produce 200-count high-count yarn; during the spinning process, the fiber adhesion and surface uniformity are mainly controlled to ensure that the yarn quality meets the requirements of high-end fibers.

[0038] Step 9: The finished product is inspected for quality and wound and packaged.

[0039] This embodiment is further set such that in the modification treatment step of tussah staple fiber, it includes softening the fiber surface while enhancing the strength of the inner lining structure, and its softening effect can be adjusted according to different requirements to balance the natural flexibility and tensile strength of the fiber.

[0040] This embodiment is further set such that the quality inspection of the finished product in step 9 includes tensile strength quality inspection; shrinkage resistance performance quality inspection; count measurement; appearance uniformity.

[0041] This embodiment is further set such that during the drawing process, the number of repeated drawing times of the sliver is not less than three to ensure the integrity of fiber arrangement.

[0042] This embodiment is further set such that in the drafting processing stage, a two-zone drafting process is used, and the drafting speed adjustment range is from 400 m / min to 600 m / min to maximize fiber quality.

[0043] This embodiment is further set such that during spinning, the spinning speed needs to be maintained stably above 500 m / min to ensure uniform forming of the yarn and avoid excessive fiber tension.

[0044] This embodiment is further set such that in step 1, the colored cotton is natural colored cotton, and its color does not require additional dyeing treatment and directly meets the requirements of environmental protection and healthy textiles.

[0045] This embodiment is further set such that in the tensile strength quality inspection, a tensile testing machine is used to test the tensile performance of the yarn, and the yarn needs to reach at least a tensile standard of 30 N.

[0046] This embodiment is further set such that in the shrinkage resistance performance quality inspection, the dimensional stability of the yarn is verified through an immersion test, the immersion time is set to 30 minutes, and the swelling rate needs to be lower than 5%.

[0047] This embodiment is further set such that in the count measurement, a precision measuring instrument is used to measure the count of the yarn to ensure that the spinning accuracy of the yarn reaches 200 counts.

[0048] The detailed connection means are well known in the art; Figure 1 As shown, high-quality tussah fibers are selected through pre-screening, with a total amount of 18 kg. 18 kg of tussah staple fibers are soaked in a 3% softener solution for 30 minutes to ensure the softness and spinnability of the fibers. The soaked fibers are dried at a temperature of 60°C for 90 minutes to improve the tensile strength of the fibers. The modified fibers are coated with an anti-shrinkage agent at a concentration of 4.5% through a coating device. After coating, they are evenly aired and dried. Undyed natural colored cotton is used, with a total amount of 22 kg. The tussah staple fibers and colored cotton are weighed and mixed in a ratio of 45:55, ready to enter the subsequent process.

[0049] The modified tussah staple fiber is mixed with colored cotton in a drum-type mixing device. The drum stirring time is 60 minutes, which is repeated twice to ensure the uniformity of the fibers. The mixed fibers are sent to an opener for processing. The fiber agglomeration is prevented during the opening process, and impurities and short fibers are removed at the same time.

[0050] The loosened fibers are combed by a carding machine to preliminarily remove residual impurities, and are arranged into a fiber web form through a combing process. The combed fiber strips are drawn three times through a drawing frame to ensure that the fiber arrangement is complete and the strength is consistent. The drawn fibers are drawn through a double-zone drawing device with a drawing speed set at 500 m / min to ensure stable fiber stretching while removing defective products. After drawing, the fiber strips are sent to a cotton spinning machine for spinning with a spinning rate maintained at 550 m / min to produce 200-count high-count yarn, with a focus on controlling the adhesion and surface uniformity of the yarn.

[0051] After the completion, quality inspection is carried out: Tensile strength test: Use a tensile machine to test the yarn tension resistance, reaching the standard of 35N or above. Shrinkage resistance test: After a 30-minute immersion test, the expansion rate is less than 4%. Count measurement: Use precision instruments to measure the yarn count to reach 200. Appearance inspection: Observe the uniformity of the yarn, without obvious defects. Packaging: The yarn is packaged through winding equipment, and the weight of each bag of finished products is 10kg. After completion, they are stored uniformly.

[0052] The yarn count produced by spinning modified tussah staple fiber and colored cotton is 200, which meets the yarn count requirements of high-end textiles. After being treated with a flexibilizer, the yarn has excellent softness and touch, which is suitable for high-end clothing that directly contacts the skin, as well as home textile products with high comfort requirements. The product is treated with an anti-shrinkage agent coating and undergoes strict anti-shrinkage performance quality inspection. The yarn expansion rate after soaking is less than 4%, and it has excellent dimensional stability, which is suitable for the production of high-quality textiles. Using natural colored cotton as raw material, there is no need for additional dyeing. The yarn directly retains the pure natural color, has environmental protection characteristics, and is in line with the trend of green textiles and the health needs of consumers.

[0053] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0054] As described above, the above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above in the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the above-disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A production process for spinning high-count yarn from modified tussah fibers based on cotton spinning equipment, characterized in that, This preparation process is based on cotton spinning equipment and includes the following steps: Step 1: Select tussah staple fiber and colored cotton; the tussah staple fiber is processed by pre-screening the short fiber variety; the natural colored cotton is undyed environmentally friendly cotton fiber; the tussah staple fiber and the colored cotton are weighed according to the production requirements and then prepared; Step 2: The tussah staple fiber is subjected to modification treatment. First, the tussah staple fiber is soaked in a softening agent solution and treated at room temperature for 20 - 40 minutes to make the fiber surface have better flexibility; the soaked short fiber is dried at low temperature to improve the tensile strength of the fiber; the fiber is subjected to surface coating treatment, and the anti-shrinkage performance is further improved by coating an anti-shrinkage agent, and the concentration of the coating agent is controlled within the range of 2% to 5%; Step 3: The modified tussah staple fiber and colored cotton are fully mixed. During the mixing process, a drum-type tumbling device and a stirring structure are used to stir and mix evenly. The mixing operation time is 50 - 70 minutes each time, and at the same time, frequency adjustment is used to ensure the uniform distribution of the fibers during the mixing process; the mixing operation is repeated twice to ensure the uniformity of the fiber component ratio; Step 4: The mixed fibers are sent to a carding machine for carding treatment to loosen the fiber mass, make it fully separated to avoid agglomeration, and at the same time remove impurity particles such as dust and fiber short lint; the output fibers after carding treatment must maintain a loose and uniform state to provide a basic fiber structure for subsequent spinning; Step 5: The carded fibers enter a comber and are processed by comb needles. Impurity residues are removed in the preliminary combing stage, and then the fibers are further sorted into a fiber web form through combing operation. During the combing process, the fiber quantitative output is controlled to ensure uniform fiber orientation; Step 6: The combed fiber web is processed by a drawframe multiple times. The repeated drawing process of the fiber sliver is set to three times to improve the uniformity of the fiber sliver and enhance the overall strength of the fiber, and ensure that the fiber sliver has a consistent density and directionality; Step 7: The drawn fiber sliver is subjected to drawing treatment by a drawing device. The drawing device adopts a two-zone drawing process; during the drawing process, it is ensured that the fiber sliver is stretched to meet the requirements of high-count yarn spinning, and at the same time, physical damage to the fibers is avoided, and defective products are screened out; Step 8: The drawn fiber sliver is sent to the spinning process. The spinning equipment operates based on cotton spinning machine technology to produce 200-count high-count yarn; during the spinning process, the fiber adhesion and surface uniformity are mainly controlled to ensure that the yarn quality meets the requirements of high-end fibers; Step 9: The finished product is subjected to quality inspection and winding and packaging.

2. The high-count yarn production process of modified tussah fiber based on cotton spinning equipment according to claim 1, characterized in that, In the modification treatment step of tussah staple fiber, it includes softening the fiber surface while enhancing the strength of the inner lining structure, and its softening effect can be adjusted according to different requirements to balance the natural flexibility and tensile strength of the fiber.

3. A production process for spinning high-count yarn from modified tussah fibers based on cotton spinning equipment according to claim 1, characterized in that, The quality inspection of the finished product in Step 9 includes tensile strength quality inspection; anti-shrinkage performance quality inspection; count measurement; appearance uniformity.

4. A production process for spinning high-count yarn from modified tussah fibers based on cotton spinning equipment according to claim 1, characterized in that, During the drawing process, the repeated drawing times of the fiber sliver are not less than three times to ensure the integrity of the fiber arrangement.

5. A production process for spinning high-count yarn from modified tussah fiber based on cotton spinning equipment according to claim 1, characterized in that, The two-zone drawing process is used in the drawing processing stage, and the drawing speed adjustment range is 400 m / min to 600 m / min to maximize the fiber quality.

6. The high-count yarn production process of modified tussah fiber based on cotton spinning equipment according to claim 1 is characterized in that, During spinning, the spinning speed needs to be maintained stably above 500 meters per minute to ensure uniform formation of the yarn and avoid excessive tension on the fibers.

7. The production process of spinning high-count yarn with modified tussah fiber based on cotton spinning equipment according to claim 1, characterized in that In step 1, the colored cotton is natural colored cotton, and its color does not require additional dyeing treatment, directly meeting the requirements of environmentally friendly and healthy textiles.

8. The production process of spinning high-count yarn with modified tussah fiber based on cotton spinning equipment according to claim 3, characterized in that, In the tensile strength quality inspection, a tensile testing machine is used to test the tensile properties of the yarn, and the yarn needs to meet at least the tensile standard of 30 N.

9. A production process for spinning high-count yarn from modified tussah fiber based on cotton spinning equipment according to claim 3, characterized in that, In the shrinkage resistance performance quality inspection, the dimensional stability of the yarn is verified through an immersion test. The immersion time is set to 30 minutes, and the swelling rate needs to be less than 5%.

10. A production process for spinning high-count yarn from modified tussah fiber based on cotton spinning equipment according to claim 3, characterized in that, In the count measurement, a precision measuring instrument is used to measure the count of the yarn to ensure that the spinning precision of the yarn reaches 200 counts.

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