Doubling two-for-one twisted yarn with glittering stripe effect and production method of doubling two-for-one twisted yarn

Abstract

The invention discloses a doubling two-for-one twisted yarn with a glittering stripe effect and a production method thereof, and belongs to the technical field of textile fibers. In order to solve the problems that in the prior art, plying tension is difficult to control, and the glittering effect is single, the doubling two-for-one twisted yarn with the glittering stripe effect is manufactured through a doubling machine by means of the different gloss differences of the chinlon 6 super-bright yarn and the chinlon 6 super-dull yarn; according to the production method, by adjusting different choices and combinations of the fineness, the monofilament number and the doubling proportion of the chinlon 6 super-bright yarn and the chinlon 6 super-dull yarn, the stripe style and the glittering strength can be flexibly regulated and controlled, multiple glittering stripe two-for-one twisted yarn with different stripe glittering effects can be prepared, meanwhile, the twist degree can be adjusted according to the requirement for the product style, and the glittering stripe two-for-one twisted yarn is obtained. The flatness, the numb feeling or the drooping feeling are improved in a targeted manner; a cloth sample woven by the doubling two-for-one twisting yarn is unique in cloth cover style, variable in stripe flashing effect, capable of being applied to different downstream fields and capable of meeting the current diversified spinning requirements.

Description

Technical Field

[0001] The present invention belongs to the technical field of textile fibers, and particularly relates to a ply-twisted yarn with a flash stripe effect and a production method thereof. Background Art

[0002] With the rapid development of the textile fiber field, the market demand for high-end fibers with special visual effects is increasing day by day. Consumers' requirements for the aesthetics and personalization of clothing, home textiles, and decorative materials are constantly rising, which promotes the continuous evolution of textile technology towards functionalization and differentiation. Among them, fibers with a flash stripe effect have become an important element in fashion design due to their unique gloss change and three-dimensional sense, and are widely used in the fields of high-end clothing, decorative fabrics, and special textiles. However, there are still many limitations in the application of existing production technologies in this field, and it is urgent to achieve breakthroughs through technological innovation.

[0003] In the prior art, the production of fibers with a flash effect mainly relies on the gloss difference of materials and the optimization of processing techniques. The traditional ply-twisting technology is a key link in the production of composite fibers, but its core difficulty lies in the tension control of different fiber materials. In the traditional ply-twisting process, improper tension control will lead to weak physical bonding between fibers, loose ply yarn structure, uneven twist distribution, poor pilling resistance and snag resistance of the finished yarn, affecting the service life and aesthetics of the fabric. In addition, the flexibility of ply-twisting ratio regulation in the existing technology is insufficient, mostly relying on fiber combinations with fixed ratios, and it is difficult to achieve diversification of flash stripes through process parameter adjustment.

[0004] Currently, the demand for flash stripe fibers in downstream application fields shows two major trends: one is the pursuit of personalized styles, requiring fibers to achieve various effects from delicate stripes to strong flashes through simple process adjustments. In the existing technologies, the production of fibers with flash effects mainly relies on the gloss difference of materials and the optimization of processing technologies. For example, in the article "Nylon Bright Silk", it is mentioned that by treating nylon fibers through specific processes and utilizing their surface reflection characteristics to form a local bright light effect. This technology uses a blend of single-source fibers and ordinary fibers. However, due to the tension difference and insufficient cohesion between fibers, problems such as broken filaments and fuzzing are likely to occur during the subsequent weaving process of the finished silk thread, affecting the overall performance of the fabric. Another document, "Starlight Dot Fabric", introduces a method of forming a starlight dot effect through the interweaving of warp and weft yarns. However, its process is complex, requiring the coordination of multiple processes, with high production costs and difficulty in achieving continuous production. The other trend is the emphasis on functionality, requiring fibers to have excellent mechanical properties and durability. For example, Chinese Patent Publication No. CN104532392A, with an application date of December 31, 2014, discloses a porous super-bright polyester fiber and its preparation method. The porous super-bright polyester fiber is obtained by spinning modified polyester, mainly through melt spinning, the number of pores, cross-sectional profile modification, etc., to endow the polyester fiber with a super-bright flash effect. The preparation steps of the modified polyester include: (1) the preparation of amino fatty acid ethylene glycol ester; (2) the preparation of modified polyester including esterification reaction and polycondensation reaction. The production process is complex and the flash effect of the finished product cannot be flexibly adjusted. Chinese Patent Publication No. CN105064029A, with an application date of July 31, 2015, discloses a super-bright polyester DTY fiber and its preparation method. The super-bright polyester DTY fiber is mainly prepared by melt spinning polyester through a profiled spinneret hole, applying an oiling agent, and high-speed winding. The preparation of this super-bright polyester DTY fiber has extremely high requirements for the oil product and oiling conditions. First, an oiling agent composed of mineral oil, fluorinated polyether, potassium phosphate ester, and sodium alkyl sulfonate needs to be prepared, and when in use, it also needs to be configured into an emulsion with an oiling agent concentration of 10 - 20 wt%. To sum up, it is difficult for the existing technologies to balance these two aspects of requirements, and there is an urgent need for a new production process that is efficient, flexible, and cost-controllable.

[0005] In the above background, combined with the optimized doubling and twisting processes, it is particularly urgent to develop a doubling and twisting silk with a flash stripe effect. It not only solves the problems of complex tension control and single flash effect in traditional technologies, but also significantly improves the cohesion and processing performance of fibers, breaking through and filling the gap in the current fiber material field, providing an efficient, low-cost, and high-value-added production solution for the textile industry, with important market value and application prospects. Summary of the Invention

[0006] To solve the problems existing in the prior art, the present invention discloses a ply-twisted yarn with a flash stripe effect and a production method thereof. By adjusting different selections and combinations of the filament fineness, the number of monofilaments, and the ply-twisting ratio of nylon 6 super bright yarn and nylon 6 super dull yarn, the stripe style and the flash intensity can be flexibly controlled, and a variety of ply-twisted yarns with different stripe flash effects can be obtained.

[0007] The technical solution of the present invention is as follows:

[0008] One of the purposes of the present invention is to provide a production method of a ply-twisted yarn with a flash stripe effect, including the following steps:

[0009] (1) Merge nylon 6 super dull yarn and nylon 6 super bright yarn respectively through the wire guiding structure and winding device of a ply-twisting machine to form a ply yarn;

[0010] (2) Twist the ply yarn through a doubling twister, control the twist and twist direction to obtain the ply-twisted yarn with the flash stripe effect.

[0011] Further, in the step (1), the filament fineness of the nylon 6 super dull yarn and the nylon 6 super bright yarn is 10-110D, and the number of monofilaments is 10-136F.

[0012] Further, the nylon 6 super dull yarn and the nylon 6 super bright yarn are any one of drawn textured yarn DTY or fully drawn yarn FDY.

[0013] Further, the ply-twisting ratio of the nylon 6 super dull yarn and the nylon 6 super bright yarn in the step (1) can be selected from one of the following combinations: 40D / 24F super dull yarn + 40D / 24F super bright yarn, 40D / 24F super dull yarn + 70D / 24F super bright yarn, 40D / 24F super dull yarn + 20D / 12F super bright yarn.

[0014] Further, the fixed-length device of the ply-twisting machine in the step (1) is set to 15000-25000m, and the spindle speed range is 600-800r / min.

[0015] Further, in the step (1), the filament fineness of the ply yarn is 40D-110D, and the number of monofilaments is 24F-48F.

[0016] Further, in the step (2), the twist of the twisting is 70-150TPM, and the twist direction is Z twist or S twist.

[0017] Further, in the twisting process of the doubling twister in the step (2), the crossing angle between the balloon wire guide and the spindle is set to 16°.

[0018] Further, during the doubling and twisting process in step (2), the production speed is 40 - 80 m / min, and the spindle speed is 6000 - 8000 r / min.

[0019] The second object of the present invention is to provide a doubled and twisted yarn with a flash stripe effect.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. The present invention first proposes a differential combination and synergistic process design of super bright FDY and super dull DTY fibers, solving the technical limitations of complex fiber tension control and single flash effect in traditional flash silk preparation technology. By selecting super bright silk and super dull silk with similar fineness and number of filaments, the problem of tension imbalance caused by differences in fiber physical properties during the doubling process is significantly reduced, and the difficulty of process regulation is simplified. At the same time, the present invention innovatively designs the doubling ratio and twist parameters of the two fibers to flexibly control the intensity and distribution pattern of the stripe flash of the doubled and twisted yarn, breaking through the defect of relying only on a single material or fixed ratio in the prior art, and realizing a high degree of customization of textile product styles.

[0022] 2. The doubled and twisted yarn of the present invention combines functionality and aesthetic value. Its unique flash stripe effect comes from the contrast between the high reflectivity of the super bright silk and the low gloss of the super dull silk, forming a dynamic visual hierarchy. At the same time, the product of the present invention enhances the cohesion between fibers through the doubling and twisting process, significantly improving the pilling resistance, snag resistance and mechanical strength, meeting the durability requirements of high-end textiles. In addition, the present invention uses different specification combinations to prepare a series of products with a large fineness span and diverse numbers of filaments, adapting to diversified application scenarios such as clothing, home textiles, and decoration, endowing the fabric with unique linen-like, wrinkled, heavy or floating feelings, and broadening the possibilities for downstream design.

[0023] 3. The production method of the present invention uses general-purpose equipment to achieve efficient continuous production by optimizing the process flow. The process parameter design is flexible, and the twist, spindle speed and production speed can be adjusted according to requirements, ensuring stable product quality. The compatibility of the specifications of the super bright and super dull fibers used reduces the threshold for raw material selection, and the similar tension characteristics reduce the frequency of equipment debugging, significantly improving production efficiency and reducing energy consumption. This production method does not require complex modification or special additives, has a low technical threshold, and is easy to promote on a large scale, providing a low-cost and high-value-added flash fiber production technology solution for the industry. Specific Embodiments

[0024] The following further describes the present invention in conjunction with preferred embodiments. The given embodiments are only for clarifying the present invention, rather than limiting the scope of the present invention.

[0025] Materials, reagents, etc. used in the following examples can be obtained from commercial sources without special instructions;

[0026] In the following quantitative tests, three independent repeated experiments were set up, and the results were averaged;

[0027] The experimental methods in the following examples are conventional methods without special instructions;

[0028] The doubling machine equipment used in the following examples is Jinma Technology JM-T308;

[0029] The twisting equipment used in the following examples is Zhejiang Sanhe SH10Z.

[0030] Example 1

[0031] This example provides a production method of doubled-twisted yarn with a flash stripe effect, including the following steps:

[0032] S1. Select 40D / 24F super dull polyamide 6 DTY and 40D / 24F super bright polyamide 6 FDY as raw materials, and load them into the independent yarn stands of the doubling machine respectively;

[0033] S2. Set the length measuring device on the doubling machine to 20000m, lead the super dull yarn and the super bright yarn into the wire guides respectively, set the spindle speed to 800r / min, and combine them into a single ply yarn in a 1:1 ratio;

[0034] S3. Transfer the 80D / 48F ply yarn after doubling to the double twister, set the spindle speed to 6000r / min, adopt S twist for the twist direction, fix the twist to 150 TPM, adjust the crossing angle to 16°, and control the wire feeding speed to 40m / min through the overfeed roller;

[0035] S4. The twisted wire is wound into a bobbin through the winding device, and finally the doubled-twisted yarn with a flash stripe effect is obtained.

[0036] Example 2

[0037] This example provides a doubled-twisted yarn with a flash stripe effect, and its production method includes the following steps:

[0038] S1. Select 40D / 24F super dull polyamide 6 DTY and 70D / 24F super bright polyamide 6 FDY as raw materials, and load them into the independent yarn stands of the doubling machine respectively;

[0039] S2. Set the length measuring device on the doubling machine to 15000m, lead the super dull yarn and the super bright yarn into the wire guides respectively, set the spindle speed to 800r / min, and combine them into a single ply yarn in a 1:1 ratio;

[0040] S3. Transfer the plied yarn of 110D / 48F after doubling to a twister, set the spindle speed at 8000 r / min, adopt Z twist for the twist direction, fix the twist at 100 TPM, adjust the crossing angle to 16°, and control the silk feeding speed at 80 m / min through an overfeed roller;

[0041] S4. Wind the twisted silk into a bobbin through a winding device, and finally obtain a doubled and twisted silk with a flash stripe effect.

[0042] Example 3

[0043] This example provides a doubled and twisted silk with a flash stripe effect, and its production method includes the following steps:

[0044] S1. Select 40D / 24F super-dull polyamide 6 DTY and 20D / 12F super-bright polyamide 6 DTY as raw materials, and load them into the independent yarn stands of a doubling machine respectively;

[0045] S2. Set the length measuring device on the doubling machine to 25000 m, respectively introduce the super-dull silk and the super-bright silk into the wire guides, set the spindle speed at 600 r / min, and ply them into a single plied yarn at a ratio of 1:1;

[0046] S3. Transfer the plied yarn of 60D / 36F after doubling to a twister, set the spindle speed at 6000 r / min, adopt Z twist for the twist direction, fix the twist at 70 TPM, adjust the crossing angle to 16°, and control the silk feeding speed at 60 m / min through an overfeed roller;

[0047] S4. Wind the twisted silk into a bobbin through a winding device, and finally obtain a doubled and twisted silk with a flash stripe effect.

[0048] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A method for producing a double-twisted yarn with a flashing stripe effect, characterized in that: The following steps are involved: (1) The nylon 6 super dull yarn and the nylon 6 super bright yarn are respectively combined through the yarn guide structure and the winding device of the yarn doubling machine to form a plied yarn; (2) The plied yarn is twisted by a doubling machine, and the twist degree and twist direction are adjusted to obtain the double-twisted yarn with the flashing stripe effect.

2. A method for producing a double-twisted yarn with a flash stripe effect according to claim 1, characterized in that: In the step (1), the fineness of the nylon 6 super dull yarn and the nylon 6 super bright yarn is 10-110D, and the number of single yarns is 10-136F.

3. The method for producing a double-twisted yarn with a flash stripe effect according to claim 1, characterized in that: In the step (1), the nylon 6 super matte yarn and the nylon 6 super bright yarn are drawn textured yarn DTY or fully drawn yarn FDY.

4. According to the method for producing the double-twisted yarn with flash stripe effect according to claim 1, it is characterized in that: In the step (1), the yarn doubling ratio of nylon 6 super matte yarn and nylon 6 super bright yarn is selected from one of the following combinations: 40D / 24F super matte yarn + 40D / 24F super bright yarn, 40D / 24F super matte yarn + 70D / 24F super bright yarn, 40D / 24F super matte yarn + 20D / 12F super bright yarn.

5. According to the method for producing the double-twisted yarn with flash stripe effect according to claim 1, it is characterized in that: The fixed length device of the yarn doubling machine in step (1) is set to 15000-25000m, and the spindle speed range is 600-800m / min.

6. According to the method for producing the double-twisted yarn with flash stripe effect according to claim 1, it is characterized in that: The fineness of the twisted yarn in step (1) is 40D-110D, and the number of single yarns is 24F-48F.

7. According to the method for producing the double-twisted yarn with flash stripe effect according to claim 1, it is characterized in that: The twisting degree in the step (2) is 70-150 TPM, and the twist direction is Z twist or S twist.

8. According to the method for producing the double-twisted yarn with flash stripe effect according to claim 1, it is characterized in that: In the step (2), during the twisting process of the two-for-one twister, the crossing angle between the balloon yarn guide and the spindle is set to 16°.

9. According to the method for producing the double-twisted yarn with flash stripe effect according to claim 1, it is characterized in that: In the step (2), the production speed during the twisting process of the two-for-one twister is 40-80 m / min, and the spindle speed is 6000-8000 r / min.

10. A double-twisted yarn with a flashing stripe effect produced according to the method of any one of claims 1 to 9.