A fabric with sweater-like effect and its detection method

Abstract

The present invention belongs to the field of textile technology, and specifically relates to a fabric with a sweater-like effect and a detection method thereof, the detection method comprising the following steps: placing a fabric sample in a tensile testing device and clamping it; removing wrinkles on the surface of the fabric sample, and activating the tensile testing device to perform a tensile test on the fabric sample; wherein the tensile testing device includes a tensile tester body, a bracket fixed to the upper end of the tensile tester body, and one side of the bracket sequentially equipped with a loading rod, a first base, and a tensile sensor from the upper end to the lower end, and the bracket and the loading rod, as well as the bracket and the first base, are all fixedly connected. When performing a tensile test on a fabric with a wool-like effect, the present invention smoothes wrinkles on the surface of the fabric sample through the cooperation of a pressing frame and a plurality of pressing blocks, thereby avoiding problems such as uneven stress, deviation in breaking strength data, and distortion of elongation caused by wrinkles during the tensile test process, so that the device can accurately reflect the true performance of the fabric.

Description

Technical Field

[0001] The invention belongs to the technical field of textiles, and in particular 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 look and feel of natural wool. Through specialized spinning processes, weave design, and finishing techniques, these fabrics mimic the fluffy texture and warmth of natural wool fibers. These fabrics retain the look and feel of traditional sweaters while combining the durability of synthetic fibers, enhancing the wearing experience while reducing production costs. With growing consumer demand for personalized, functional textiles, the research and development and application of sweater-like fabrics continue to attract attention, with performance optimization and advancements in testing technologies becoming key industry topics.

[0003] However, existing sweater-like fabrics still have the following problems in practical applications:

[0004] 1. Existing sweater-like fabrics, while fluffy and soft, can still feel irritating when in contact with the skin due to high fiber surface roughness, improper yarn hairiness treatment, or inadequate finishing processes. This is particularly unsuitable for people with sensitive skin, limiting the product's applicability.

[0005] 2. Fabrics often require multiple tests before being used in garment manufacturing. In existing technologies, during tensile testing of fabrics, workers must manually clamp the ends of the fabric, making it difficult to completely eliminate wrinkles or uneven stress on the fabric surface. This can lead to problems such as low breaking strength data (the actual load-bearing cross-sectional area of the fabric is reduced due to folding or overlapping at the wrinkle, resulting in localized stress concentration) and elongation distortion (due to the initial length being shortened by the wrinkle). The data also has large dispersion and poor repeatability (different degrees of wrinkles will cause large fluctuations in each test result), which cannot accurately reflect the true performance of the fabric.

[0006] 3. During the tensile test of fabrics, the fabrics need to be frequently replaced and disassembled for multiple tests, which results in low testing efficiency and consumes time and energy.

[0007] Based on this, the present application proposes a fabric with a sweater-like effect and a detection method thereof to improve the above-mentioned problems. Summary of the Invention

[0008] The purpose of the present invention is to provide a method for detecting fabrics with a sweater-like effect. When performing a tensile test on the fabrics with a wool-like effect, wrinkles on the surface of the fabric sample are smoothed by the cooperation of a pressing frame and a plurality of pressing blocks, thereby avoiding problems such as uneven stress, breaking strength data deviation, elongation distortion, large data discreteness and poor repeatability caused by wrinkles in the fabric sample during the tensile test process, so that the device can accurately reflect the true performance of the fabric.

[0009] The technical solutions adopted by the present invention are as follows:

[0010] A method for detecting a fabric having a sweater-like effect comprises the following steps:

[0011] St1: Place the fabric sample in the tensile testing device and clamp it;

[0012] St2: Remove wrinkles on the surface of the fabric sample and start the tensile testing device to perform a tensile test on the fabric sample;

[0013] The tensile testing device includes a tensile tester body, a bracket fixed to the upper end of the tensile tester body, a loading rod, a first base and a tensile sensor assembled on one side of the bracket from the upper end to the lower end, and the bracket and the loading rod, as well as the bracket and the first base, are fixedly connected, a second base is fixed to the upper end of the tensile sensor, and further includes:

[0014] A pressing assembly, the pressing assembly being assembled on one side of the first base, the pressing assembly comprising a pressing frame and a plurality of pressing blocks, the pressing frame being fixed to one side of the first base, the plurality of pressing blocks being slidably connected to the interior of the pressing frame, and the plurality of pressing blocks being arranged sequentially from one end to the other end of the interior of the pressing frame;

[0015] Two clamping assemblies, the two clamping assemblies are assembled on one side of the bracket, wherein one clamping assembly is connected to the loading hanging rod and is recorded as a first clamping unit, and the other clamping assembly is connected to the second base and is recorded as a second clamping unit;

[0016] A driving assembly, wherein the driving assembly is assembled on the bracket and connected to the second base;

[0017] When the fabric sample passes between the pressing frame and the plurality of pressing blocks, the pressing frame and the plurality of pressing blocks cooperate to squeeze the surface of the fabric sample and eliminate wrinkles on the surface of the fabric sample.

[0018] In a preferred embodiment, the pressing assembly further includes a guide rod, a pad and an elastic element, wherein the guide rod is fixed to one side of the pressing block, and the guide rod and the pressing frame are slidably connected, the pad is slidably connected to the outside of the guide rod and is located inside the pressing frame, and the elastic element is assembled between the pressing block and the pad.

[0019] In a preferred embodiment, a pressing surface and a guide surface are provided on one side of the pressing block, and the guide surface is located at the upper end of the pressing surface, and a wrinkle-reducing rounded corner surface is provided between the pressing surface and the guide surface, wherein, in the initial state, the inclination angles of the multiple guide surfaces increase successively from one end to the other end inside the pressing frame, and the lengths of the multiple guide surfaces decrease successively from one end to the other end inside the pressing frame, and the multiple wrinkle-reducing rounded corner surfaces can form a continuous curved surface.

[0020] In a preferred solution, in the initial state, the elastic element is in a compressed state.

[0021] 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 stretching instrument 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 interior of the movable clamping plate and is threadedly connected to the fixed clamping plate, wherein 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.

[0022] In a preferred embodiment, the drive assembly includes a drive motor, a center screw, a guide rail, a slider and a third base. The drive motor is fixed to the upper end of the bracket, and the drive motor and the tensile instrument body are electrically connected through a wire. The center screw is fixed to the output end of the drive motor, and the drive motor and the bracket are rotatably connected through a ball bearing. The guide rail is fixed to one side of the bracket, and the slider is slidably connected to the outside of the guide rail. The third base is fixed to one side of the slider, and the third base and the center screw are threadedly connected, and the tension sensor is fixed to the upper end of the third base.

[0023] In a preferred embodiment, the fabric with a sweater-like effect includes an upper coarse needle structure and a lower fine needle structure, and the upper coarse needle structure and the lower fine needle structure are connected by a connecting thread. The upper coarse needle structure is formed by a spinning process of an upper yarn blended with bulked fiber and artificial fiber, and the lower fine needle structure is formed by a spinning process of a lower yarn blended with non-bulked fiber and artificial fiber, wherein the transverse density ratio of the upper coarse needle structure and the lower fine needle structure is 1: (2 to 4).

[0024] In a preferred embodiment, the bulked fiber is bulked acrylic, the man-made fiber is viscose, and the non-bulked fiber is solid acrylic, wherein the blending ratio of bulked acrylic and viscose in the upper yarn is (11-15):7, and the blending ratio of solid acrylic and viscose in the lower yarn is (13-15):7.

[0025] In a preferred embodiment, the yarn count of the upper coarse needle structure is 11s, the yarn count of the lower fine needle structure is 40s, and the connecting wire is 100d polyester filament.

[0026] In a preferred embodiment, the surface of the upper thick needle structure forms fluffy three-dimensional textures, and the surface of the lower thin needle structure is a smooth surface.

[0027] The technical effects achieved by the present invention are:

[0028] When performing a tensile test on a wool-like fabric, the present invention drives the second clamping unit through the driving assembly to pull the rolled fabric sample, so that the fabric sample passes through the interior of the pressing assembly. The pressing frame and the plurality of pressing blocks cooperate to smooth out wrinkles on the surface of the fabric sample, thereby avoiding problems such as uneven stress, deviation in breaking strength data, distortion in elongation, large data dispersion, and poor repeatability caused by wrinkles in the fabric sample during the tensile test process. This enables the device to accurately reflect the true performance of the fabric.

[0029] The present invention can continuously test fabric samples by cooperating with multiple clamping components and driving components, eliminating the need for workers to frequently replace and disassemble fabric samples when performing multiple tensile tests, thereby improving testing efficiency.

[0030] The present invention adopts an upper layer yarn blended with bulked fiber and artificial fiber, and forms an upper layer coarse needle structure through a spinning process. At the same time, a lower layer yarn blended with non-bulked fiber and artificial fiber is used, and forms a lower layer fine needle structure through a spinning process. The upper layer coarse needle structure and the lower layer fine needle structure are combined through connecting yarn to produce a fabric with a sweater-like effect. The coarse 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 smoothness of the fabric against the skin. This structure makes the fabric more comfortable when in contact with the skin, effectively reduces the irritation, expands the scope of application of the product, and meets consumers' pursuit of a comfortable wearing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of the overall tensile testing device of the present invention;

[0032] Figure 2 This invention Figure 1 A partial enlarged schematic diagram of point A in the middle;

[0033] Figure 3 Schematic diagram of the structure of the support of the present invention;

[0034] Figure 4 It is a structural schematic diagram of the material pressing assembly of the present invention;

[0035] Figure 5 It is a structural cross-sectional view of the material pressing assembly of the present invention;

[0036] Figure 6 This is a schematic diagram of the exploded structure of the material pressing assembly of the present invention;

[0037] Figure 7 It is a structural schematic diagram of the material pressing block of the present invention;

[0038] Figure 8 It is a structural schematic diagram of the clamping assembly of the present invention;

[0039] Figure 9 It is a schematic diagram of the structure explosion of the clamping assembly of the present invention;

[0040] Figure 10 It is a schematic structural diagram of the drive assembly of the present invention;

[0041] Figure 11 It is a schematic diagram of the exploded structure of the drive assembly of the present invention.

[0042] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0043] 10. Tensile tester body; 11. Bracket; 12. Loading rod; 13. First base; 14. Tension sensor; 15. Second base;

[0044] 20. Pressing assembly;

[0045] 21. Pressing frame; 22. Pressing block; 23. Guide rod; 24. Pad; 25. Elastic element; 26. Pressing surface; 27. Guide surface; 28. Wrinkle-reducing fillet surface;

[0046] 30. Clamping assembly; 30A. First clamping unit; 30B. Second clamping unit;

[0047] 31. Fixed clamping plate; 32. Dynamic clamping plate; 33. Clamping motor; 34. Clamping screw;

[0048] 40. Drive assembly;

[0049] 41. Drive motor; 42. Center screw; 43. Guide rail; 44. Slider; 45. Third base. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0051] In the following description, many specific details are set forth to facilitate a full 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 may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0052] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in a preferred embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive of other embodiments.

[0053] Furthermore, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, when describing the embodiments of the present invention, cross-sectional views illustrating device structures may be partially enlarged and not to scale. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, the three-dimensional dimensions of length, width, and depth should be included.

[0054] Example 1

[0055] Please see the attached Figures 1 to 5 FIG. 1 is a first embodiment of the present invention, which provides a method for detecting a fabric having a sweater-like effect, comprising the following steps:

[0056] St1: Place the wool-like fabric sample in a tensile testing device and clamp it;

[0057] St2: Remove wrinkles from the surface of the wool-like fabric sample, start the tensile testing device to perform a tensile test on the wool-like fabric sample, and obtain the test results. For the specific test process, please refer to GB / T 3923.1-2013 "Tensile properties of textile fabrics - Part 1: Determination of breaking strength and elongation at break (Strip method)";

[0058] The tensile testing device includes a tensile tester body 10, a bracket 11 being fixed to the upper end of the tensile tester body 10, and a loading rod 12, a first base 13, and a tensile sensor 14 being sequentially mounted on one side of the bracket 11 from the upper end to the lower end. The bracket 11 and the loading rod 12, as well as the bracket 11 and the first base 13, are fixedly connected. The tensile sensor 14 and the tensile tester body 10 are electrically connected via a wire. The loading rod 12 is configured to suspend a fabric sample to be tested. A second base 15 is fixed to the upper end of the tensile sensor 14. The device further includes:

[0059] The pressing assembly 20 is assembled on one side of the first base 13. The pressing assembly 20 includes a pressing frame 21 and a plurality of pressing blocks 22. The pressing frame 21 is fixed to one side of the first base 13. The plurality of pressing blocks 22 are all slidably connected to the interior of the pressing frame 21. The plurality of pressing blocks 22 are arranged in sequence from one end of the interior of the pressing frame 21 to the other end of the interior of the pressing frame 21.

[0060] Two clamping assemblies 30 are assembled on one side of the bracket 11 from the upper end to the lower end and are located between the pressing assembly 20 and the second base 15. One clamping assembly 30 is connected to the loading hanger 12 and is recorded as a first clamping unit 30A. The other clamping assembly 30 is connected to the second base 15 and is recorded as a second clamping unit 30B. The two clamping assemblies 30 can clamp and fix the upper and lower ends of the fabric sample respectively, and the first clamping unit 30A and the second clamping unit 30B can operate independently.

[0061] The driving assembly 40 is assembled on the bracket 11 and connected to the second base 15. The driving assembly 40 can drive the second clamping unit 30B to move synchronously in the vertical direction;

[0062] When the fabric sample passes between the pressing frame 21 and the plurality of pressing blocks 22 , the pressing frame 21 and the plurality of pressing blocks 22 cooperate to squeeze the surface of the fabric sample and eliminate wrinkles on the surface of the fabric sample.

[0063] 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 outside of the hollow sleeve, and the hollow sleeve is sleeved on the outside of the loading hanging rod 12 in a clearance fit manner.

[0064] In this embodiment, the rolled fabric sample to be tested is looped around the outer side of the loading hanger 12, and the lower end of the fabric sample to be tested (i.e., the free end of the rolled fabric sample to be tested) is passed through the pressure frame 21 and the plurality of pressure blocks 22 and the interior 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 is in contact with 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 operated in the reverse direction, and the driving assembly 40 drives the second clamping unit 30B to move upward. The second clamping unit 30B is moved downward, and the rolled fabric sample to be tested is pulled by the second clamping unit 30B. When the fabric sample passes between the pressing frame 21 and the pressing block 22, the pressing frame 21 and the pressing block 22 squeeze the fabric sample passing through the inside of the pressing frame 21, thereby eliminating 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 pressing frame 21 and the pressing block 22 are slidably connected, when the pressing block 22 contacts the jacquard on the surface of the fabric sample, the pressing block 22 can automatically adjust its position. Through the cooperation of multiple pressing blocks 22, the fabric sample can be The surface of the flat part and the jacquard pattern are squeezed respectively 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 clamps and fixes the fabric sample, and the driving component 40 is started again, and the second clamping unit 30B is driven downward by the driving component 40. The fabric sample is stretched by the cooperation of the first clamping unit 30A and the second clamping unit 30B, and the relevant data of the stretching process is monitored by the tension sensor 14. After the test is completed, the driving component 40 is started, so that the driving component 40 drives the second clamping unit 30B to move downward. Unit 30B moves upward and repeats subsequent operations, so that the device can perform multiple tensile tests on the rolled fabric sample to be tested. Through the above-mentioned scheme, the device can continuously perform multiple tests on the rolled fabric sample without manual operation, and there is no need for staff to manually replace and disassemble the fabric sample multiple times. At the same time, the pressing component 20 can squeeze the fabric sample with jacquard on the surface and eliminate wrinkles, avoiding problems such as uneven stress, breaking strength data deviation, elongation distortion, large data discreteness and poor repeatability caused by wrinkles in the fabric sample during the tensile test process, thereby accurately reflecting the true performance of the fabric.

[0065] It should be noted that, during the tensile test, since the breaking 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, during each tensile test, before the second clamping unit 30B clamps the fabric sample, it is necessary to first perform a pulling operation on the fabric sample. This process is automatically executed by a supporting program after manually setting relevant parameters (such as the length of the fabric sample during each tensile test), without the need for manual operation. The specific steps are as follows: after the previous tensile test is completed, the second clamping unit 30B is reversed to release the clamping of the fabric sample of the previous tensile test by the second clamping unit 30B, the driving assembly 40 is started, and the second clamping unit 30B is driven by the driving assembly 40 to move upward until the upper end of the second clamping unit 30B is in contact with the lower end of the first clamping unit 30A, the second clamping unit 30B is started in the forward direction, and the fabric sample is clamped for the first time by the second clamping unit 30B, and the driving assembly 40 is reversed to release the clamping of the fabric sample of the previous tensile test by the second clamping unit 30B. The unit 30B drives one end of the fabric sample to move downward, 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), the second clamping unit 30B is reversed to release the clamping of the fabric sample by the second clamping unit 30B, and the driving component 40 is started again to drive the second clamping unit 30B to move upward until the upper end of the second clamping unit 30B and the lower end of the first clamping unit 30A are again in contact with each other, so that the fabric sample that participated in the previous tensile test is Move completely to the lower end of the second clamping unit 30B, operate the second clamping unit 30B again, clamp the fabric sample for the second time through the second clamping unit 30B, operate the driving assembly 40 in the reverse direction, and drive the second clamping unit 30B downward through the driving assembly 40 until the distance between the second clamping unit 30B and the first clamping unit 30A reaches the preset value, wherein 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 its specific value, please refer to GB / T 3923.1-2013 "Tensile properties of textile fabrics Part 1: Determination of breaking strength and elongation at break (strip method)", specifically, in the adjacent two-side tensile tests, the fabric sample participating in the first test has been stretched and its physical properties have changed. In order to ensure the accuracy of the second fabric sample test data, the fabric sample tested for the first time cannot participate in the second test process. The fabric sample is clamped for the first time by the second clamping unit 30B and the fabric sample is driven, so that the fabric sample participating in the first tensile test is completely moved to the lower end of the second clamping unit 30B, preventing the fabric sample participating in the first tensile test from participating in the second tensile test, thereby ensuring the accuracy of the second tensile test data.

[0066] Next, please refer to Figures 4 to 7 The pressing assembly 20 also includes a guide rod 23, a pad 24 and an elastic element 25. The guide rod 23 is detachably fixed to one side of the pressing block 22 by a threaded connection, and the guide rod 23 and the pressing frame 21 are slidably connected. The pad 24 is slidably connected to the outer side of the guide rod 23 and is located inside the pressing frame 21. The elastic element 25 is assembled between the pressing block 22 and the pad 24. A pressing surface 26 and a guide surface 27 are provided on one side of the pressing block 22, and the guide surface 27 is located at the upper end of the pressing surface 26. A wrinkle-reducing rounded corner surface 28 is provided between the pressing surface 26 and the guide surface 27. In the initial state, the inclination angles of multiple guide surfaces 27 increase successively from one end to the other end inside the pressing frame 21, and the lengths of multiple guide surfaces 27 decrease successively from one end to the other end inside the pressing frame 21. Multiple wrinkle-reducing rounded corner surfaces 28 can form a continuous curved surface.

[0067] Here, the elastic element 25 is always in a compressed state.

[0068] Furthermore, since the inclination angles of the plurality of guide surfaces 27 increase from one end to the other end of the press frame 21, and the lengths of the plurality of guide surfaces 27 decrease from one end to the other end of the press frame 21, the wrinkle-reducing rounded corner surface 28 is inclined relative to the press frame 21 (see FIG. Figure 5 and Figure 6 shown).

[0069] In this embodiment, when a fabric sample is subjected to a tensile test, the rolled fabric sample to be tested is looped around the outside of the loading hanging rod 12, and the lower end of the fabric sample to be tested is passed between the pressing frame 21 and the multiple pressing blocks 22. When there is jacquard on the surface of the fabric sample, the elastic element 25 in a compressed state drives the multiple pressing blocks 22 to squeeze the plane and jacquard on the surface of the fabric sample respectively, and smoothes the fabric sample passing through the inside of the pressing frame 21. At the same time, since the wrinkle-reducing rounded surface 28 is inclined relative to the pressing assembly 20, the wrinkles on the fabric sample are guided by the inclined continuous curved surface until the wrinkles are eliminated, thereby avoiding the presence of wrinkles in the fabric sample between the first clamping unit 30A and the second clamping unit 30B, which leads to problems such as uneven stress, breaking strength data deviation, elongation distortion, large data discreteness and poor repeatability caused by wrinkles in the fabric sample during the tensile test, thereby accurately reflecting the true performance of the fabric.

[0070] Please refer 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, and 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 motor 33 and the stretching instrument body 10 are electrically connected through a wire. The two clamping screws 34 are respectively fixed to the output ends of the two clamping motors 33, and the clamping screws 34 pass through the interior 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, wherein 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.

[0071] 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 away from each other, so that the fabric sample can pass between the fixed clamping plate 31 and the movable clamping plate 32.

[0072] Furthermore, a clamping surface is provided at one end where the fixed clamping plate 31 and the movable clamping plate 32 are close to each other, and the clamping surface is provided with anti-slip grooves. The setting of the anti-slip grooves can increase the clamping force of the clamping assembly 30 on the fabric sample, thereby preventing the fabric sample from moving during the tensile test.

[0073] In this embodiment, when a tensile test is performed on a fabric sample, two clamping motors 33 in the same clamping assembly 30 are synchronously started through the tensile tester body 10. The clamping motor 33 is fixedly connected to the clamping screw 34, so that the clamping motor 33 drives the clamping screw 34 to rotate. Since the clamping screw 34 is threadedly connected to the fixed clamping plate 31, the fixed clamping plate 31 drives the movable clamping plate 32, and the clamping motor 33 and the clamping screw 34 move synchronously. When the fixed clamping plate 31 and the movable clamping plate 32 move away from each other, the fabric sample can pass 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.

[0074] Please refer 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 instrument body 10 are electrically connected through a wire, 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 rotatably connected through 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 and the central screw 42 are threadedly connected, and the tension sensor 14 is fixed to the upper end of the third base 45.

[0075] In this embodiment, when the fabric sample is subjected to a tensile test, the drive motor 41 is started, and the drive motor 41 drives the center screw 42 to rotate through the fixed connection between the drive motor 41 and the center screw 42, and the center screw 42 drives the third base 45 to move through the threaded connection between the center screw 42 and the third base 45, and the third base 45 is guided by the cooperation of the guide rail 43 and the slider 44. Since the third base 45 and the tension sensor 14 and the tension sensor 14 and the second base 15 are fixedly connected, the third base 45 drives the tension 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 disposal direction.

[0076] Example 2

[0077] A fabric with a sweater-like effect, suitable for the detection method of a fabric with a sweater-like effect described in any one of Example 1, wherein the fabric with a sweater-like effect comprises an upper coarse needle structure and a lower fine needle structure, and the upper coarse needle structure and the lower fine needle structure are connected by a connecting thread, the upper coarse needle structure is formed by a spinning process of an upper yarn blended with bulked fiber and artificial fiber, and the lower fine needle structure is formed by a spinning process of a lower yarn blended with non-bulked fiber and artificial fiber, wherein the transverse density ratio of the upper coarse needle structure and the lower fine needle structure is 1:(2-4). In this embodiment, the transverse density ratio of the upper coarse needle structure and the lower fine needle structure is preferably 1:3.

[0078] In a preferred embodiment, the surface of the upper thick needle structure is formed with fluffy three-dimensional textures, and the surface of the lower thin needle structure is a smooth surface.

[0079] In this embodiment, the upper yarn formed by blending bulked fiber and artificial fiber not only has the softness and comfort of wool, but also has the warmth and fluffiness of bulked yarn. The upper coarse needle structure formed by the blending process of the upper yarn has the visual appearance of a sweater and the soft touch of a sweater. At the same time, the lower fine needle structure with a smooth surface formed by the spinning process of the lower yarn formed by blending non-bulked fiber and artificial fiber will not cause a tingling sensation to people with sensitive skin when it comes into contact with human skin, thereby improving the physical feel of the fabric with imitation sweater effect and making it more comfortable to touch the skin.

[0080] In a preferred embodiment, the bulked fiber is bulked acrylic, the man-made fiber is viscose, and the non-bulked fiber is solid acrylic, wherein the blending ratio of bulked acrylic and viscose in the upper yarn is (11-15):7, and the blending ratio of solid acrylic and viscose in the lower yarn is (13-15):7. In this embodiment, the blending ratio of bulked acrylic and viscose in the upper yarn and the blending ratio of solid acrylic and viscose in the lower yarn are preferably 13:7.

[0081] In a preferred embodiment, the yarn count of the upper coarse needle structure is 11s, the yarn count of the lower fine needle structure is 40s, and the connecting wire is 100d polyester filament.

[0082] In a specific embodiment, first, color spun yarn is prepared, and bulked acrylic fiber and viscose fiber are put into a high-temperature and high-pressure dyeing vat in a ratio of 13:7, and dyed at 90-100°C for 4 hours. Then, they are fully mixed in a cotton blending machine, carded into cotton strips by a cotton carding machine, and subjected to two drawing processes to improve the straightness and parallelism of the fibers. The roving machine is drafted and twisted into roving, and the spinning machine is further drafted and twisted into 11s (upper layer) or 40s (lower layer) spun yarn. Finally, the yarn is wound into a cone, and then a double-sided knitting circular machine is used for weaving. The speed is set to 12 rpm. The upper layer is woven with a 30-inch diameter coarse needle (needle gauge 3.5 mm), and the lower layer is woven with 3 Non-bulked yarn is woven with 2-inch diameter fine needles (needle pitch 1.2mm), and the upper and lower layers are connected by threading with 100d polyester filament at a frequency of 5 needles. After weaving, it is water-dropped and shaped. It is first pre-treated in 90℃ hot water for 45 minutes, and then shaped at 130℃ at a speed of 20m / min. Subsequently, the upper surface of the fabric is napped 3 times with a 36-roller napping machine at a speed of 15m / min, and then trimmed with a circular knife shearing machine with the shearing height set to 0.5mm. Finally, the finished product is shaped at 160℃ at a speed of 15m / min. After shaping, it is pre-shrunk to control the shrinkage rate of the finished product to ≤3% in the warp direction and ≤2% in the weft direction.

[0083] The working principle of the present invention is:

[0084] The rolled fabric sample to be tested is sleeved on the outer side of the loading hanging rod 12, and the lower end of the fabric sample to be tested is passed through the pressure frame 21 and the plurality of pressure blocks 22 and the interior of the first clamping unit 30A, and 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 is in contact with the upper end of the first clamping unit 30A, and the second clamping unit 30B is started to clamp and fix the lower end of the fabric sample through the second clamping unit 30B, and the driving assembly 40 is reversed to drive the second clamping unit 30B to move downward, and the rolled fabric sample to be tested is pulled by the second clamping unit 30B until the distance between the first clamping unit 30A and the second clamping unit 30B reaches a preset value. When the fabric sample passes between the pressing frame 21 and the pressing block 22, the elastic element 25 in the compressed state drives the multiple pressing blocks 22 to squeeze the jacquard and flat surface of the fabric surface respectively to eliminate wrinkles on the fabric surface, and starts the first clamping unit 30A so that the first clamping unit 30A also clamps and fixes the fabric sample. The driving component 40 is started again, and the second clamping unit 30B is driven downward by the driving component 40. The fabric sample is tensile tested by the cooperation of the first clamping unit 30A and the second clamping unit 30B, and the relevant data of the stretching process is monitored by the tension sensor 14. After the test is completed, the driving component 40 is started so that the driving component 40 drives the second clamping unit 30B to move upward, and the subsequent operations are repeated, so that the device can perform multiple tensile tests on the rolled fabric sample to be tested.

[0085] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A method for detecting a fabric having a sweater-like effect, characterized in that: The following steps are involved: St1: Place the fabric sample in the tensile testing device and clamp it; St2: Remove wrinkles on the surface of the fabric sample and start the tensile testing device to perform a tensile test on the fabric sample; The tensile testing device comprises a tensile tester body (10), a bracket (11) is fixed to the upper end of the tensile tester body (10), a loading rod (12), a first base (13) and a tensile sensor (14) are sequentially assembled on one side of the bracket (11) from the upper end to the lower end, and the bracket (11) and the loading rod (12) as well as the bracket (11) and the first base (13) are fixedly connected, a second base (15) is fixed to the upper end of the tensile sensor (14), and further comprises: A pressing assembly (20), wherein the pressing assembly (20) is assembled on one side of the first base (13), and the pressing assembly (20) includes a pressing frame (21) and a plurality of pressing blocks (22), wherein the pressing frame (21) is fixed to one side of the first base (13), and the plurality of pressing blocks (22) are all slidably connected to the interior of the pressing frame (21), and the plurality of pressing blocks (22) are sequentially arranged from one end to the other end of the interior of the pressing frame (21); The pressing assembly (20) further comprises a guide rod (23), a pad (24) and an elastic element (25), wherein the guide rod (23) is fixed to one side of the pressing block (22), and the guide rod (23) and the pressing frame (21) are slidably connected, the pad (24) is slidably connected to the outside of the guide rod (23) and is located inside the pressing frame (21), the elastic element (25) is assembled between the pressing block (22) and the pad (24), and the pressing block (22) is A pressing surface (26) and a guide surface (27) are provided on one side, and the guide surface (27) is located at the upper end of the pressing surface (26), and a wrinkle-reducing rounded corner surface (28) is provided between the pressing surface (26) and the guide surface (27), wherein, in an initial state, the inclination angles of the plurality of guide surfaces (27) increase from one end to the other end inside the pressing frame (21), and the lengths of the plurality of guide surfaces (27) decrease from one end to the other end inside the pressing frame (21); Two clamping assemblies (30), the two clamping assemblies (30) being assembled on one side of the bracket (11), wherein one clamping assembly (30) is connected to the loading hanger (12) and is recorded as a first clamping unit (30A), and the other clamping assembly (30) is connected to the second base (15) and is recorded as a second clamping unit (30B); A driving assembly (40), wherein the driving assembly (40) is assembled on the bracket (11), and the driving assembly (40) is connected to the second base (15); When the fabric sample passes between the pressing frame (21) and the plurality of pressing blocks (22), the pressing frame (21) and the plurality of pressing blocks (22) cooperate to squeeze the surface of the fabric sample and eliminate wrinkles on the surface of the fabric sample.

2. The method for detecting a fabric having a sweater-like effect according to claim 1, wherein: In the initial state, the elastic element (25) is in a compressed state.

3. The method for detecting a fabric having a sweater-like effect according to claim 1, wherein: The clamping assembly (30) includes a fixed clamping plate (31), a movable clamping plate (32), a clamping motor (33) and a clamping screw (34), wherein 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 stretching instrument 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), wherein 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).

4. The method for detecting a fabric having a sweater-like effect according to claim 1, wherein: 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), wherein the driving motor (41) is fixed to the upper end of the bracket (11), 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 rotatably connected, the guide rail (43) is fixed to one side of the bracket (11), the slider (44) is slidably connected to the outer side of the guide rail (43), the third base (45) is fixed to one side of the slider (44), and the third base (45) and the central screw (42) are threadedly connected, and the tension sensor (14) is fixed to the upper end of the third base (45).

5. The method for detecting a fabric having a sweater-like effect according to claim 1, wherein: The fabric with the imitation sweater effect includes an upper coarse needle structure and a lower fine needle structure, and the upper coarse needle structure and the lower fine needle structure are connected by a connecting thread. The upper coarse needle structure is formed by a spinning process of an upper yarn blended with bulked fiber and artificial fiber, and the lower fine needle structure is formed by a spinning process of a lower yarn blended with non-bulked fiber and artificial fiber, wherein the transverse density ratio of the upper coarse needle structure and the lower fine needle structure is 1: (2 to 4).

6. The method for detecting a fabric having a sweater-like effect according to claim 5, wherein: The surface of the upper layer thick needle structure is formed with fluffy three-dimensional textures, and the surface of the lower layer fine needle structure is a smooth surface.

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