Fabric with sweater imitation effect and detection method thereof

Abstract

The invention belongs to the technical field of textile, and particularly relates to a sweater-like fabric and a detection method thereof, the detection method comprises the following steps: placing a fabric sample in a tension test device, and clamping; removing wrinkles on the surface of the fabric sample, and starting a tension testing device to carry out a tensile test on the fabric sample; the tension testing device comprises a stretching instrument body, a support is fixed to the upper end of the stretching instrument body, a loading hanging rod, a first base and a tension sensor are sequentially assembled on one side of the support from the upper end to the lower end, the support and the loading hanging rod are fixedly connected, and the support and the first base are fixedly connected. When a fabric with a wool-like effect is subjected to a tensile test, wrinkles on the surface of a fabric sample are smoothed through cooperation of the material pressing frame and the multiple material pressing blocks, the problems of uneven stress, breaking strength data deviation, elongation distortion and the like caused by the wrinkles in the tensile test process are avoided, and the device can accurately reflect the real performance of the fabric.

Description

Technical Field

[0001] The present invention belongs to the technical field of textiles, and particularly relates to a fabric with a sweater-like effect and a detection method thereof. Background Art

[0002] Wool-like fabrics are synthetic materials that mimic the appearance and texture of natural wool fabrics. Through special spinning processes, fabric structure designs, or post-finishing techniques, these fabrics imitate the fluffy texture and warmth retention characteristics of natural wool fibers. They not only retain the appearance style of traditional sweaters but also combine the durability advantages of chemical fiber materials, improving the wearing experience while reducing production costs. With the growing demand for personalized and functional textiles in the consumer market, the research and development and application of fabrics with a sweater-like effect have continued to receive attention, and the improvement of their performance and the progress of detection technologies have become important topics in the industry. However, the existing fabrics with a sweater-like effect still have the following problems in practical applications: 1. For existing fabrics with a sweater-like effect, although they have the characteristics of being fluffy and soft, some products may still cause a tingling sensation when in contact with the skin due to the relatively high surface roughness of the fibers, improper treatment of yarn hairiness, or insufficient post-finishing processes. This is especially unfriendly to people with sensitive skin and limits the scope of application of the products. 2. Before making clothes, fabrics often need to undergo various tests. In the prior art, during the tensile test of fabrics, workers need to manually hold both ends of the fabric, making it difficult to completely eliminate wrinkles or uneven stress on the fabric surface. This leads to problems such as low breaking strength data (the actual cross-sectional area of the fabric at the wrinkled part decreases due to folding or overlapping, resulting in local stress concentration) and distorted elongation (the initial length is shortened due to wrinkles) during the test. The data has a large dispersion and poor repeatability (different degrees of wrinkles will cause large fluctuations in each test result), and cannot accurately reflect the true performance of the fabric. 3. During the tensile test of fabrics, when conducting multiple tests, it is necessary to frequently replace and disassemble the fabric, resulting in low detection efficiency and wasting time and energy. Based on this, the present application proposes a fabric with a sweater-like effect and a detection method thereof to improve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to provide a detection method for a fabric with a sweater-like effect. When performing a tensile test on the fabric with a wool-like yarn effect, the wrinkles on the surface of the fabric sample are smoothed through the cooperation of a pressure frame and multiple pressure blocks, avoiding problems such as uneven stress, deviation of breaking strength data, distortion of elongation, large data dispersion, and poor repeatability caused by wrinkles during the tensile test, so that the device can accurately reflect the true performance of the fabric.

[0004] The technical solution adopted by the present invention is specifically as follows: A detection method for a fabric with a sweater-like effect, comprising the following steps: St1: Place the fabric sample in a tensile testing device and clamp it. St2: Remove the wrinkles on the surface of the fabric sample, and start the tensile testing device to perform a tensile test on the fabric sample. Wherein, the tensile testing device includes a tensile tester main body, a bracket is fixed at the upper end of the tensile tester main body, a loading hanging rod, a first base and a tensile sensor are sequentially assembled on one side of the bracket from the upper end to the lower end, and both between the bracket and the loading hanging rod and between the bracket and the first base are fixedly connected. A second base is fixed at the upper end of the tensile sensor, and further includes: A material pressing component, the material pressing component is assembled on one side of the first base, the material pressing component includes a material pressing frame and a plurality of material pressing blocks, the material pressing frame is fixed on one side of the first base, and a plurality of the material pressing blocks are all slidably connected inside the material pressing frame, and a plurality of the material pressing blocks are arranged in sequence from one end to the other end inside the material pressing frame; Two clamping components, the two clamping components are assembled on one side of the bracket. Among them, one clamping component is connected to the loading hanging rod and is denoted as the first clamping unit, and the other clamping component is connected to the second base and is denoted as the second clamping unit; A driving component, the driving component is assembled on the bracket, and the driving component is connected to the second base; Wherein, when the fabric sample passes between the material pressing frame and the plurality of material pressing blocks, the surface of the fabric sample is extruded through the cooperation of the material pressing frame and the plurality of material pressing blocks to eliminate the wrinkles on the surface of the fabric sample.

[0005] In a preferred embodiment, the material pressing component further includes a guide rod, a backing plate and an elastic element. The guide rod is fixed on one side of the material pressing block, and the guide rod is slidably connected to the material pressing frame. The backing plate is slidably connected to the outside of the guide rod and is located inside the material pressing frame. The elastic element is assembled between the material pressing block and the backing plate.

[0006] In a preferred embodiment, a material pressing surface and a guiding surface are provided on one side of the material pressing block, and the guiding surface is located above the material pressing surface. A wrinkle-eliminating rounded surface is provided between the material pressing surface and the guiding surface. Wherein, in the initial state, the inclination angles of the plurality of guiding surfaces increase sequentially from one end to the other end inside the material pressing frame, and the lengths of the plurality of guiding surfaces decrease sequentially from one end to the other end inside the material pressing frame, and the plurality of wrinkle-eliminating rounded surfaces can form a continuous curved surface.

[0007] In a preferred embodiment, in the initial state, the elastic element is in a compressed state.

[0008] In a preferred embodiment, the clamping assembly includes a fixed clamping plate, a movable clamping plate, a clamping motor, and a clamping screw. The fixed clamping plate is assembled on one side of the bracket, the movable clamping plate is assembled on one side of the fixed clamping plate, the clamping motor is fixed on one side of the movable clamping plate, and the clamping motor and the tensile tester main body are electrically connected through a wire. The clamping screw is fixed to the output end of the clamping motor, and the clamping screw passes through the inside of the movable clamping plate and is threadedly connected to the fixed clamping plate. Among them, the fixed clamping plate in the first clamping unit is fixed on one side of the first base, and the fixed clamping plate in the second clamping unit is fixed on the upper end of the second base.

[0009] In a preferred embodiment, the driving assembly includes a driving motor, a central screw, a guide rail, a slider, and a third base. The driving motor is fixed on the upper end of the bracket, and the driving motor and the tensile tester main body are electrically connected through a wire. The central screw is fixed to the output end of the driving motor, and the driving motor and the bracket are rotationally connected through a ball bearing. The guide rail is fixed on one side of the bracket, the slider is slidably connected to the outside of the guide rail, the third base is fixed on one side of the slider, and the third base is threadedly connected to the central screw. And the tensile force sensor is fixed on the upper end of the third base.

[0010] A fabric with a sweater-like effect, applicable to the detection method of a fabric with a sweater-like effect described in any one of the above. The fabric with a sweater-like effect includes an upper layer of thick needle structure and a lower layer of thin needle structure, and the upper layer of thick needle structure and the lower layer of thin needle structure are connected by connecting wires. The upper layer of thick needle structure is composed of an upper yarn formed by blending bulked fiber and artificial fiber through a spinning process, and the lower layer of thin needle structure is composed of a lower yarn formed by blending non-bulked fiber and artificial fiber through a spinning process. Among them, the horizontal density ratio of the upper layer of thick needle structure to the lower layer of thin needle structure is 1:(2 - 4).

[0011] In a preferred embodiment, the bulked fiber is bulked acrylic, the artificial fiber is viscose fiber, and the non-bulked fiber is solid acrylic. Among them, the blending ratio of bulked acrylic and viscose fiber in the upper yarn is (11 - 15):7, and the blending ratio of solid acrylic and viscose fiber in the lower yarn is (13 - 15):7.

[0012] In a preferred embodiment, the yarn count of the upper layer of thick needle mechanism is 11s, the yarn count of the lower layer of thin needle mechanism is 40s, and the connecting wire is 100d polyester filament.

[0013] In a preferred embodiment, the surface of the upper layer of thick needle mechanism forms a fluffy three-dimensional texture, and the surface of the lower layer of thin needle mechanism is a smooth surface.

[0014] The technical effects achieved by the present invention are: When the present invention conducts a tensile test on a fabric with a wool-like effect, the driving component drives the second clamping unit to pull the rolled fabric sample, so that the fabric sample passes through the inside of the material pressing component. Through the cooperation of the material pressing frame and multiple material pressing blocks, the wrinkles on the surface of the fabric sample are smoothed, avoiding problems such as uneven stress, deviation of breaking strength data, distortion of elongation rate, large data dispersion, and poor repeatability caused by wrinkles during the tensile test of the fabric sample, enabling the device to accurately reflect the true performance of the fabric; Through the cooperation of multiple clamping components and the driving component, the present invention can conduct continuous tests on fabric samples, eliminating the need for staff to frequently replace and disassemble fabric samples during multiple tensile tests, improving the detection efficiency; The present invention uses an upper layer yarn spun from bulked fiber and artificial fiber to form an upper layer thick needle structure through a spinning process. At the same time, a lower layer yarn spun from non-bulked fiber and artificial fiber is used to form a lower layer fine needle structure through a spinning process. The upper layer thick needle structure and the lower layer fine needle structure are combined through connecting wires to produce a fabric with a sweater-like effect. The thick needle structure of the upper layer gives the fabric a fluffy three-dimensional sense, while the fine needle structure of the lower layer ensures the skin-friendly smoothness of the fabric. This structure makes the fabric more comfortable when in contact with the skin, effectively reducing the itching sensation, expanding the scope of application of the product, and meeting the pursuit of consumers for a comfortable wearing experience. Description of the Drawings

[0015] Figure 1 is the overall structural schematic diagram of the tensile test device of the present invention; Figure 2 is the present invention Figure 1 partial enlarged schematic diagram at A in; Figure 3 is the structural schematic diagram of the bracket of the present invention; Figure 4 is the structural schematic diagram of the material pressing component of the present invention; Figure 5 is the structural sectional view of the material pressing component of the present invention; Figure 6 is the structural explosion schematic diagram of the material pressing component of the present invention; Figure 7 is the structural schematic diagram of the material pressing block of the present invention; Figure 8 is the structural schematic diagram of the clamping component of the present invention; Figure 9 is the structural explosion schematic diagram of the clamping component of the present invention; Figure 10 is the structural schematic diagram of the driving component of the present invention; Figure 11 is the structural explosion schematic diagram of the driving component of the present invention.

[0016] In the attached drawings, the list of components represented by each reference numeral is as follows: 10. Tensile tester main body; 11. Bracket; 12. Loading hanging rod; 13. First base; 14. Tension sensor; 15. Second base; 20. Blanket pressing assembly; 21. Blanket pressing frame; 22. Blanket pressing block; 23. Guide rod; 24. Backing plate; 25. Elastic element; 26. Blanket pressing surface; 27. Guide surface; 28. Wrinkle-eliminating rounded surface; 30. Clamping assembly; 30A. First clamping unit; 30B. Second clamping unit; 31. Fixed clamping plate; 32. Movable clamping plate; 33. Clamping motor; 34. Clamping screw; 40. Driving assembly; 41. Driving motor; 42. Central screw; 43. Guide rail; 44. Slide block; 45. Third base. Detailed implementation manners

[0017] To make the above objects, features, and advantages of the present invention more apparent and understandable, the following provides a detailed description of the specific implementation manners of the present invention in conjunction with the drawings of the specification.

[0018] In the following description, many specific details are set forth to facilitate a thorough understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0019] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation manner of the present invention. The phrase "in a preferred embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0020] Thirdly, the present invention is described in detail in conjunction with the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structures will be enlarged locally out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0021] Embodiment 1

[0022] Please refer to the attached Figures 1 to 5 As shown in the figure, this is the first embodiment of the present invention. This embodiment provides a detection method for a fabric with a sweater-like effect, including the following steps: St1: Place a fabric sample with a wool-like effect in a tensile testing device and clamp it; St2: Remove the wrinkles on the surface of the fabric sample with the wool-like effect, start the tensile testing device to conduct a tensile test on the fabric sample with the wool-like effect, and obtain the test results. Herein, for the specific test process, please refer to GB / T 3923.1-2013 "Textiles - Tensile properties of fabrics - Part 1: Determination of breaking force and elongation at break (strip method)". Among them, the tensile testing device includes a tensile tester main body 10. A bracket 11 is fixed at the upper end of the tensile tester main body 10. On one side of the bracket 11, a loading hanging rod 12, a first base 13, and a tensile force sensor 14 are assembled in sequence from the upper end to the lower end. Moreover, both between the bracket 11 and the loading hanging rod 12 and between the bracket 11 and the first base 13 are fixedly connected. The tensile force sensor 14 and the tensile tester main body 10 are electrically connected through a wire. The loading hanging rod 12 is configured to hang the fabric sample to be tested. A second base 15 is fixed at the upper end of the tensile force sensor 14. It further includes: A material pressing component 20, the material pressing component 20 is assembled on one side of the first base 13. The material pressing component 20 includes a material pressing frame 21 and a plurality of material pressing blocks 22. The material pressing frame 21 is fixed on one side of the first base 13. A plurality of material pressing blocks 22 are all slidably connected inside the material pressing frame 21, and a plurality of material pressing blocks 22 are arranged in sequence from one end inside the material pressing frame 21 to the other end inside the material pressing frame 21; Two clamping components 30, the two clamping components 30 are assembled on one side of the bracket 11 in sequence from the upper end to the lower end and are located between the material pressing component 20 and the second base 15. Among them, one clamping component 30 is connected to the loading hanging rod 12 and is denoted as the first clamping unit 30A, and the other clamping component 30 is connected to the second base 15 and is denoted as the second clamping unit 30B. The two clamping components 30 can respectively clamp and fix the upper end and the lower end of the fabric sample, and both the first clamping unit 30A and the second clamping unit 30B can operate independently; A driving component 40, the driving component 40 is assembled on the bracket 11, and the driving component 40 is connected to the second base 15. The driving component 40 can drive the second clamping unit 30B to move synchronously in the vertical direction; Among them, when the fabric sample passes between the material pressing frame 21 and the plurality of material pressing blocks 22, the surface of the fabric sample is extruded through the cooperation of the material pressing frame 21 and the plurality of material pressing blocks 22 to eliminate the wrinkles on the surface of the fabric sample.

[0023] It should be noted that in this embodiment, in order to improve the detection efficiency, the fabric sample to be tested is wound around the outer side of the hollow sleeve, and the hollow sleeve is sleeved on the outer side of the loading hanging rod 12 in a clearance fit manner.

[0024] In this embodiment, a roll-shaped fabric sample to be tested is knotted around the outer side of the loading hanging rod 12, and the lower end of the fabric sample to be tested (i.e., the free end of the roll-shaped fabric sample to be tested) passes through the inside of the material pressing frame 21 and between multiple material pressing blocks 22 and the inside of the first clamping unit 30A. The driving assembly 40 is started, so that the driving assembly 40 drives the second clamping unit 30B to move upward until the lower end of the second clamping unit 30B fits against the upper end of the first clamping unit 30A. The second clamping unit 30B is started, and the lower end of the fabric sample is clamped and fixed by the second clamping unit 30B. The driving assembly 40 is reversely operated, and the driving assembly 40 drives the second clamping unit 30B to move downward. The roll-shaped fabric sample to be tested is pulled by the second clamping unit 30B. When the fabric sample passes through the inside of the material pressing frame 21 and the material pressing blocks 22, the fabric sample passing through the inside of the material pressing frame 21 is extruded by the material pressing frame 21 and the material pressing blocks 22, thereby eliminating the wrinkles on the fabric sample. At the same time, when there are patterns such as jacquard on the surface of the fabric sample, the surface of the fabric sample is not a flat surface. Since the material pressing frame 21 and the material pressing blocks 22 are slidably connected, when the material pressing blocks 22 come into contact with the jacquard on the surface of the fabric sample, the material pressing blocks 22 can automatically adjust their positions. Through the cooperation of multiple material pressing blocks 22, the surfaces of the flat parts of the fabric sample and the jacquard patterns can be respectively extruded until the distance between the first clamping unit 30A and the second clamping unit 30B reaches a preset value. The first clamping unit 30A is started, so that the first clamping unit 30A also forms clamping and fixing on the fabric sample. The driving assembly 40 is started again, and the driving assembly 40 drives the second clamping unit 30B to move downward. The fabric sample is subjected to a tensile test through the cooperation of the first clamping unit 30A and the second clamping unit 30B, and relevant data during the tensile process is monitored by the tensile force sensor 14. After the test is completed, the driving assembly 40 is started, so that the driving assembly 40 drives the second clamping unit 30B to move upward, and subsequent operations are repeated, so that the device can perform multiple tensile tests on the roll-shaped fabric sample to be tested. Through the above scheme setting, the device can continuously perform multiple tests on the roll-shaped fabric sample without manual operation, without manual operation by the staff to perform multiple replacements and disassembly of the fabric sample. At the same time, the material pressing assembly 20 can extrude the fabric sample with jacquard on the surface and eliminate wrinkles, avoiding problems such as uneven stress, deviation of breaking strength data, distortion of elongation rate, large data dispersion and poor repeatability caused by wrinkles during the tensile test of the fabric sample, and thus accurately reflecting the true performance of the fabric.

[0025] It should be noted that during the tensile test, since the fracture positions of the fabric samples between the first clamping unit 30A and the second clamping unit 30B are different, in order to ensure that the physical properties of the fabric samples are in the initial state during the next test, before the second clamping unit 30B clamps the fabric sample during each tensile test, it is necessary to first perform a traction operation on the fabric sample. After setting relevant parameters manually (such as the length of the fabric sample during each tensile test), it can be automatically executed through the supporting program without manual operation. The specific steps are as follows: After the previous tensile test is completed, reverse the operation of the second clamping unit 30B to release the clamping of the fabric sample in the previous tensile test. Start the driving component 40, and drive the second clamping unit 30B to move upward through the driving component 40 until the upper end of the second clamping unit 30B fits with the lower end of the first clamping unit 30A. Start the second clamping unit 30B forward to perform the first clamping on the fabric sample through the second clamping unit 30B. Reverse the operation of the driving component 40, and drive one end of the fabric sample to move downward through the second clamping unit 30B, and the moving distance is greater than or equal to the height of the second clamping unit 30B (the moving distance is preferably equal to the height of the second clamping unit 30B). Reverse the operation of the second clamping unit 30B to release the clamping of the fabric sample by the second clamping unit 30B. Start the driving component 40 again, and drive the second clamping unit 30B to move upward through the driving component 40 until the upper end of the second clamping unit 30B fits with the lower end of the first clamping unit 30A again, so that the fabric sample that participated in the previous tensile test is completely moved to the lower end of the second clamping unit 30B. Operate the second clamping unit 30B again to perform the second clamping on the fabric sample through the second clamping unit 30B. Reverse the operation of the driving component 40, and drive the second clamping unit 30B to move downward through the driving component 40 until the distance between the second clamping unit 30B and the first clamping unit 30A reaches a preset value. Here, the preset value refers to the length of the fabric sample between the first clamping unit 30A and the second clamping unit 30B during each tensile test. For the specific value, please refer to GB / T 3923.1-2013 "Textiles - Tensile properties of fabrics - Part 1: Determination of breaking force and elongation at break (strip method)". Specifically, in adjacent two-sided tensile tests, the fabric sample that participated in the first test has been stretched and its physical properties have changed. In order to ensure the accuracy of the test data of the second fabric sample, the fabric sample that was tested for the first time cannot participate in the second test process. By performing the first clamping on the fabric sample through the second clamping unit 30B and driving the fabric sample, the fabric sample that participated in the first tensile test is completely moved to the lower end of the second clamping unit 30B, avoiding the fabric sample that participated in the first tensile test from participating in the second tensile test, thereby ensuring the accuracy of the second tensile test data.

[0026] Secondly, please refer to again Figures 4 to 7 , the blank holder assembly 20 further includes guide rods 23, a backing plate 24 and elastic elements 25. The guide rods 23 are detachably fixed to one side of the blank holder block 22 by means of threaded connection, and the guide rods 23 are slidably connected to the blank holder frame 21. The backing plate 24 is slidably connected to the outside of the guide rods 23 and is located inside the blank holder frame 21. The elastic elements 25 are assembled between the blank holder block 22 and the backing plate 24. One side of the blank holder block 22 is provided with a blank holding surface 26 and a guiding surface 27, and the guiding surface 27 is located at the upper end of the blank holding surface 26. A wrinkle-eliminating rounded surface 28 is provided between the blank holding surface 26 and the guiding surface 27. Among them, in the initial state, the inclination angles of the plurality of guiding surfaces 27 increase sequentially from one end to the other end inside the blank holder frame 21, and the lengths of the plurality of guiding surfaces 27 decrease sequentially from one end to the other end inside the blank holder frame 21. The plurality of wrinkle-eliminating rounded surfaces 28 can form a continuous curved surface.

[0027] Herein, the elastic elements 25 are always in a compressed state.

[0028] Furthermore, since the inclination angles of the plurality of guiding surfaces 27 increase sequentially from one end to the other end inside the blank holder frame 21, and the lengths of the plurality of guiding surfaces 27 decrease sequentially from one end to the other end inside the blank holder frame 21, the wrinkle-eliminating rounded surface 28 is inclined with respect to the blank holder frame 21 (please refer to Figure 5 and Figure 6 shown).

[0029] In this embodiment, when a tensile test is performed on a fabric sample, the rolled fabric sample to be tested is sleeved on the outside of the loading hanging rod 12, and the lower end of the fabric sample to be tested is passed through between the blank holder frame 21 and the plurality of blank holder blocks 22. When there are jacquards on the surface of the fabric sample, the elastic elements 25 in the compressed state drive the plurality of blank holder blocks 22 to respectively extrude the plane and the jacquards on the surface of the fabric sample, so as to smooth the fabric sample passing through the inside of the blank holder frame 21. At the same time, since the wrinkle-eliminating rounded surface 28 is inclined with respect to the blank holder assembly 20, the wrinkles on the fabric sample are guided by the inclined continuous curved surface until the wrinkles are eliminated, thereby avoiding the problems such as uneven stress, deviation of breaking strength data, distortion of elongation rate, large data dispersion and poor repeatability caused by the wrinkles of the fabric sample during the tensile test between the first clamping unit 30A and the second clamping unit 30B, and thus accurately reflecting the true performance of the fabric.

[0030] Please refer to again Figure 8 and Figure 9As shown, the clamping assembly 30 includes a fixed clamping plate 31, a movable clamping plate 32, two clamping motors 33 and two clamping screws 34. The fixed clamping plate 31 is assembled on one side of the bracket 11, the movable clamping plate 32 is assembled on one side of the fixed clamping plate 31. The two clamping motors 33 are both fixed on one side of the movable clamping plate 32, and the clamping motors 33 and the tensile tester main body 10 are electrically connected through wires. The two clamping screws 34 are respectively fixed on the output ends of the two clamping motors 33, and the clamping screws 34 penetrate through the inside of the movable clamping plate 32 and are threadedly connected to the fixed clamping plate 31. The clamping screws 34 and the movable clamping plate 32 are rotatably connected in a clearance fit manner. Among them, the fixed clamping plate 31 in the first clamping unit 30A is fixed on one side of the first base 13, and the fixed clamping plate 31 in the second clamping unit 30B is fixed on the upper end of the second base 15.

[0031] It should be noted that in the initial state, the clamping assembly 30 is in a non-clamping state, that is, the fixed clamping plate 31 and the movable clamping plate 32 are far away from each other so that the fabric sample can pass through between the fixed clamping plate 31 and the movable clamping plate 32.

[0032] Furthermore, a clamping surface is provided at the end where the fixed clamping plate 31 and the movable clamping plate 32 are close to each other. The clamping surface is provided with anti-slip lines, and the setting of the anti-slip lines can improve the clamping force of the clamping assembly 30 on the fabric sample and prevent the fabric sample from moving during the tensile test.

[0033] In this embodiment, when performing a tensile test on the fabric sample, the two clamping motors 33 in the same clamping assembly 30 are synchronously started by the tensile tester main body 10. Due to the fixed connection between the clamping motors 33 and the clamping screws 34, the clamping motors 33 drive the clamping screws 34 to rotate. Since the clamping screws 34 are threadedly connected to the fixed clamping plate 31, the fixed clamping plate 31 drives the movable clamping plate 32, the clamping motors 33 and the clamping screws 34 to move synchronously. When the fixed clamping plate 31 and the movable clamping plate 32 are far away from each other, the fabric sample can pass through between the fixed clamping plate 31 and the movable clamping plate 32. When the fixed clamping plate 31 and the movable clamping plate 32 are in contact with each other, the fixed clamping plate 31 and the movable clamping plate 32 can clamp the fabric sample.

[0034] Please refer to again Figure 10and the bracket 11, the driving assembly 40 includes a driving motor 41, a central screw 42, a guide rail 43, a slider 44 and a third base 45. The driving motor 41 is fixed to the upper end of the bracket 11, and the driving motor 41 and the tensile tester main body 10 are electrically connected by wires. The central screw 42 is fixed to the output end of the driving motor 41, and the driving motor 41 and the bracket 11 are rotationally connected by a ball bearing. The guide rail 43 is fixed to one side of the bracket 11. The slider 44 is slidably connected to the outside of the guide rail 43. The third base 45 is fixed to one side of the slider 44, and the third base 45 is threadedly connected to the central screw 42. The tensile sensor 14 is fixed to the upper end of the third base 45.

[0035] In this embodiment, when performing a tensile test on a fabric sample, the driving motor 41 is started. Due to the fixed connection between the driving motor 41 and the central screw 42, the driving motor 41 drives the central screw 42 to rotate. Due to the threaded connection between the central screw 42 and the third base 45, the central screw 42 drives the third base 45 to move, and the third base 45 is guided by the cooperation of the guide rail 43 and the slider 44. Since both the third base 45 and the tensile sensor 14 and between the tensile sensor 14 and the second base 15 are fixedly connected, the third base 45 drives the tensile sensor 14 and the second base 15 to move synchronously in the vertical direction, thereby driving the second clamping unit 30B to move in the treatment direction.

[0036] Embodiment 2

[0037] A fabric with a sweater-like effect, applicable to the detection method of a fabric with a sweater-like effect described in any one of Embodiments 1. The fabric with a sweater-like effect includes an upper layer of thick needle structure and a lower layer of thin needle structure, and the upper layer of thick needle structure and the lower layer of thin needle structure are connected by connecting wires. The upper layer of thick needle structure is formed by spinning an upper yarn after blending an bulked fiber and a rayon through a spinning process. The lower layer of thin needle structure is formed by spinning a lower yarn after blending a non-bulked fiber and a rayon. Among them, the horizontal density ratio of the upper layer of thick needle structure and the lower layer of thin needle structure is 1:(2-4). In this embodiment, the horizontal density ratio of the upper layer of thick needle structure and the lower layer of thin needle structure is preferably 1:3.

[0038] In a preferred embodiment, fluffy three-dimensional patterns are formed on the surface of the upper thick needle mechanism, and the surface of the lower thin needle mechanism is a smooth surface.

[0039] In this embodiment, the upper layer yarn obtained by blending bulked fiber and artificial fiber not only has the soft comfort of wool yarn, but also has the warmth and fluffiness of bulked yarn. The upper layer thick needle structure formed by the upper layer yarn through the blending process has the visual perception of a sweater and a soft touch like a sweater. At the same time, the lower layer fine needle structure with a smooth surface formed by the lower layer yarn obtained by blending non-bulked fiber and artificial fiber through the spinning process will not cause a scratching feeling to people with sensitive skin when contacting the human skin, improving the body feeling of the fabric with the effect of imitating a sweater and making the skin-friendly feeling more comfortable.

[0040] In a preferred embodiment, the bulked fiber is bulked acrylic, the artificial fiber is viscose fiber, and the non-bulked fiber is solid acrylic. Among them, the blending ratio of bulked acrylic and viscose fiber in the upper layer yarn is (11 - 15):7, and the blending ratio of solid acrylic and viscose fiber in the lower layer yarn is (13 - 15):7. In this embodiment, the blending ratio of bulked acrylic and viscose fiber in the upper layer yarn and the blending ratio of solid acrylic and viscose fiber in the lower layer yarn are both preferably 13:7.

[0041] In a preferred embodiment, the yarn count of the upper layer thick needle structure is 11s, the yarn count of the lower layer fine needle structure is 40s, and the connecting thread is 100d polyester filament.

[0042] In a specific embodiment, first, color-spun yarn is prepared. Bulk acrylic and viscose fiber are put into a high-temperature and high-pressure dyeing cylinder in a ratio of 13:7, dyed at 90 - 100 °C for 4 hours, and then successively passed through a mixing machine for full mixing, a carding machine for carding into sliver, two drawing processes to improve the straightness and parallelism of the fibers, a roving frame for drafting and twisting into roving, and a spinning frame for further drafting and twisting into 11s (upper layer) or 40s (lower layer) yarn. Finally, winding is carried out on a winder to form a cheese. Then, a double-sided circular knitting machine is used for weaving. The set speed is 12 rpm. The upper layer is knitted with bulked blended yarn using a thick needle (pitch 3.5 mm) with a 30-inch cylinder diameter, and the lower layer is knitted with non-bulked yarn using a fine needle (pitch 1.2 mm) with a 32-inch cylinder diameter. A 100d polyester filament is threaded through to connect the upper and lower layers at a frequency of one stitch every five stitches. After weaving, water dropping and setting are carried out. First, pre-treatment is carried out in hot water at 90 °C for 45 minutes, and then setting is carried out at 130 °C at a vehicle speed of 20 m / min. Subsequently, the upper surface of the fabric is raised three times by a 36-roller raising machine at a vehicle speed of 15 m / min, and then trimmed with a circular knife shearing machine with the shearing height set at 0.5 mm. Finally, finished product setting is carried out at 160 °C at a vehicle speed of 15 m / min. After setting, pre-shrinking treatment is carried out to control the finished product shrinkage rate within warp ≤ 3% and weft ≤ 2%.

[0043] The working principle of the present invention is: The rolled fabric sample to be tested is sleeved outside the loading hanging rod 12, and the lower end of the fabric sample to be tested passes through the inside of the pressure material frame 21 and between multiple pressure material blocks 22 and the first clamping unit 30A. The driving assembly 40 is started, so that the driving assembly 40 drives the second clamping unit 30B to move upward (at this time, the fixed clamping plate 31 and the movable clamping plate 32 move away from each other) until the lower end of the second clamping unit 30B and the upper end of the first clamping unit 30A are fitted. The second clamping unit 30B is started to clamp and fix the lower end of the fabric sample through the second clamping unit 30B. The driving assembly 40 is reversely operated, and the second clamping unit 30B is driven to move downward through the driving assembly 40. The rolled fabric sample to be tested is pulled through the second clamping unit 30B until the distance between the first clamping unit 30A and the second clamping unit 30B reaches a preset value. During this process, when the fabric sample passes through the pressure material frame 21 and the pressure material blocks 22, driven by the elastic element 25 in a compressed state, multiple pressure material blocks 22 can respectively extrude the jacquard on the fabric surface and the flat surface to eliminate the wrinkles on the fabric surface. The first clamping unit 30A is started so that the first clamping unit 30A also forms clamping and fixing on the fabric sample. The driving assembly 40 is started again, and the second clamping unit 30B is driven to move downward through the driving assembly 40. The fabric sample is subjected to a tensile test through the cooperation of the first clamping unit 30A and the second clamping unit 30B, and relevant data during the tensile process is monitored by the tensile force sensor 14. After the test is completed, the driving assembly 40 is started so that the driving assembly 40 drives the second clamping unit 30B to move upward, and subsequent operations are repeated, so that the device can perform multiple tensile tests on the rolled fabric sample to be tested.

[0044] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention are implemented according to the conventional means in the art without special instructions and limitations.

Claims

1. A detection method for a fabric with a sweater-like effect, characterized in that: It includes the following steps: St1: Place the fabric sample in a tensile testing device and clamp it; St2: Remove the wrinkles on the surface of the fabric sample, and start the tensile testing device to perform a tensile test on the fabric sample; Among them, the tensile testing device includes a tensile tester main body (10). A bracket (11) is fixed at the upper end of the tensile tester main body (10). On one side of the bracket (11), a loading hanging rod (12), a first base (13), and a tensile sensor (14) are assembled in sequence from the upper end to the lower end. And the bracket (11) is fixedly connected to the loading hanging rod (12), and the bracket (11) is fixedly connected to the first base (13). A second base (15) is fixed at the upper end of the tensile sensor (14). It also includes: A material pressing assembly (20). The material pressing assembly (20) is assembled on one side of the first base (13). The material pressing assembly (20) includes a material pressing frame (21) and a plurality of material pressing blocks (22). The material pressing frame (21) is fixed on one side of the first base (13). A plurality of the material pressing blocks (22) are all slidably connected to the inside of the material pressing frame (21), and the plurality of the material pressing blocks (22) are arranged in sequence from one end to the other end inside the material pressing frame (21); Two clamping assemblies (30). The two clamping assemblies (30) are assembled on one side of the bracket (11). Among them, one clamping assembly (30) is connected to the loading hanging rod (12) and is denoted as the first clamping unit (30A), and the other clamping assembly (30) is connected to the second base (15) and is denoted as the second clamping unit (30B); A driving assembly (40). The driving assembly (40) is assembled on the bracket (11), and the driving assembly (40) is connected to the second base (15); Among them, when the fabric sample passes between the material pressing frame (21) and the plurality of material pressing blocks (22), the surface of the fabric sample is squeezed through the cooperation of the material pressing frame (21) and the plurality of material pressing blocks (22) to eliminate the wrinkles on the surface of the fabric sample.

2. The detection method of a fabric imitating the effect of a sweater according to claim 1, characterized in that: The material pressing assembly (20) further includes a guide rod (23), a backing plate (24), and an elastic element (25). The guide rod (23) is fixed on one side of the material pressing block (22), and the guide rod (23) is slidably connected to the material pressing frame (21). The backing plate (24) is slidably connected to the outside of the guide rod (23) and is located inside the material pressing frame (21). The elastic element (25) is assembled between the material pressing block (22) and the backing plate (24).

3. The detection method of a fabric with a sweater-like effect according to claim 2, characterized in that: One side of the material pressing block (22) is provided with a material pressing surface (26) and a guiding surface (27), and the guiding surface (27) is located above the material pressing surface (26). A wrinkle-removing rounded surface (28) is provided between the material pressing surface (26) and the guiding surface (27). Among them, in the initial state, the inclination angles of the plurality of guiding surfaces (27) increase in sequence from one end to the other end inside the material pressing frame (21), and the lengths of the plurality of guiding surfaces (27) decrease in sequence from one end to the other end inside the material pressing frame (21).

4. The detection method of a fabric imitating the effect of a sweater according to claim 2, characterized in that: In the initial state, the elastic element (25) is in a compressed state.

5. The detection method of a fabric imitating the effect of a sweater according to claim 1, characterized in that: The clamping assembly (30) includes a fixed clamping plate (31), a movable clamping plate (32), a clamping motor (33) and a clamping screw (34). The fixed clamping plate (31) is assembled on one side of the bracket (11), the movable clamping plate (32) is assembled on one side of the fixed clamping plate (31), the clamping motor (33) is fixed on one side of the movable clamping plate (32), and the clamping motor (33) and the tensile tester main body (10) are electrically connected through a wire. The clamping screw (34) is fixed on the output end of the clamping motor (33), and the clamping screw (34) is threadedly connected to the fixed clamping plate (31). Among them, the fixed clamping plate (31) in the first clamping unit (30A) is fixed on one side of the first base (13), and the fixed clamping plate (31) in the second clamping unit (30B) is fixed on the upper end of the second base (15).

6. The detection method of a fabric with a sweater-like effect according to claim 1, characterized in that: The driving assembly (40) includes a driving motor (41), a central screw (42), a guide rail (43), a slider (44) and a third base (45). The driving motor (41) is fixed on the upper end of the bracket (11), the central screw (42) is fixed on the output end of the driving motor (41), and the driving motor (41) is rotatably connected to the bracket (11). The guide rail (43) is fixed on one side of the bracket (11), the slider (44) is slidably connected to the outside of the guide rail (43), the third base (45) is fixed on one side of the slider (44), and the third base (45) is threadedly connected to the central screw (42), and the tensile force sensor (14) is fixed on the upper end of the third base (45).

7. A fabric with a sweater-like effect, applicable to the detection method of a fabric with a sweater-like effect according to any one of claims 1 to 6, characterized in that: The fabric simulating the sweater effect includes an upper layer of thick needle structure and a lower layer of thin needle structure, and the upper layer of thick needle structure and the lower layer of thin needle structure are connected by connecting wires. The upper layer of thick needle structure is formed by spinning the upper yarn after blending bulked fiber and artificial fiber, and the lower layer of thin needle structure is formed by spinning the lower yarn after blending non-bulked fiber and artificial fiber. Among them, the horizontal density ratio of the upper layer of thick needle structure and the lower layer of thin needle structure is 1: (2-4).

8. A fabric with a sweater-like effect according to claim 7, characterized in that: The surface of the upper layer of thick needle mechanism forms a fluffy three-dimensional texture, and the surface of the lower layer of thin needle mechanism is a smooth surface.

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