Clothing wet-state adhesive force testing device

Abstract

The utility model discloses a clothing wet state attaching force testing device, which comprises a power unit, a sample unit, a sweating unit and a supporting arm unit, the supporting arm unit is used for placing a human arm, the sweating unit is oppositely arranged on one side of the supporting arm unit, and the sweating unit can enable the human arm on the supporting arm unit to simulate a sweating effect. The sample unit is oppositely arranged on the other side of the supporting arm unit, the power unit is connected with the sample unit, and the power unit can adjust the distance between the sample unit and the supporting arm unit, so that the to-be-tested clothing on the sample unit can be attached to and separated from the human arm on the supporting arm unit. According to the device for testing the wet attaching force of the clothing, the testing result of the attaching force of the clothing is objective and accurate, a human body is always in a comfortable state, the testing accuracy is improved, the sweating unit can achieve the effect of simulating the real sweating state of the human body, samples are convenient and rapid to replace and easy to operate, the structural space of each unit of the device is reasonable in design, and the testing efficiency is improved. The integration degree and the automation degree are high.

Description

Technical Field

[0001] This utility model relates to the field of clothing testing, and in particular to a device for testing the wet adhesion of clothing. Background Technology

[0002] In today's diversified and highly competitive consumer market, consumers' expectations for clothing have far exceeded the basic needs of covering the body and keeping warm. With rising living standards and increased health awareness, people are increasingly inclined to choose clothing that reflects a high-quality lifestyle. When purchasing clothing, consumers not only focus on novel styles, harmonious color combinations, and reasonable prices, but also place unprecedented emphasis on the comfort of wearing the garment. Especially in the sportswear sector, despite the emergence of numerous products touting moisture-wicking and quick-drying features, consumers still face the problem of clothing clinging tightly to the skin after heavy sweating. This not only significantly reduces wearing comfort but may also adversely affect athletic performance.

[0003] Traditionally, testing the skin-sticking properties of clothing has relied primarily on subjective evaluation methods, such as wearing tests or hand feel assessments. While these methods can intuitively reflect the wearer's actual experience, their lack of objectivity and repeatability makes it difficult to accurately quantify the skin-sticking properties of clothing, thus limiting their application in product development and quality control. To overcome the limitations of subjective evaluation methods, researchers are dedicated to developing more objective and accurate testing methods and devices.

[0004] However, existing objective testing methods still have certain limitations. The simulated skin used in the test differs from actual human skin in terms of physical and chemical properties, which may lead to test results that are not entirely consistent with the subjective tactile sensation under actual wearing conditions. This makes it difficult to closely reflect actual wearing conditions and results in inaccurate assessments of the fabric's skin adhesion performance. Utility Model Content

[0005] The purpose of this invention is to provide a device for testing the wet adhesion of clothing. By simulating the sweating state of a human arm wearing clothing, it detects the wet adhesion of clothing when separated from the skin, providing objective and accurate test results. The specific technical solution is as follows:

[0006] A fabric wet adhesion testing device includes a power unit, a sample unit, a sweating unit, and a support arm unit. The support arm unit is used to place a human arm. The sweating unit is positioned opposite to one side of the support arm unit, and the sweating unit can simulate the sweating effect of the human arm on the support arm unit. The sample unit is positioned opposite to the other side of the support arm unit. The power unit is connected to the sample unit and can adjust the distance between the sample unit and the support arm unit so that the fabric to be tested on the sample unit can adhere to and separate from the human arm on the support arm unit.

[0007] Furthermore, the support arm unit includes a support portion and a gripping component disposed opposite to each other, and the distance between the support portion and the gripping component is adjustable.

[0008] Furthermore, the grip assembly includes a grip, a first adjustment plate, and a second adjustment plate that are sequentially and movably connected. The first adjustment plate has a first track so that the grip can reciprocate on the first adjustment plate in a first direction, and the second adjustment plate has a second track so that the first adjustment plate can reciprocate on the second adjustment plate in a second direction.

[0009] Furthermore, the arm support unit also includes a wrist support and a first adjustment rod. The wrist support is located between the support part and the handle. The wrist support and the second adjustment plate are connected through the first adjustment rod to support the wrist joint of the human forearm.

[0010] Furthermore, the sample unit includes a detachably connected clamping frame and a connecting part, with the clamping frame connected to the power unit via the connecting part.

[0011] Furthermore, the clamping frame also includes a clamping assembly and two clips. The clamping assembly includes a rod and a clamping plate. One of the rod and the clamping plate is provided with multiple nail slots, and the other of the rod and the clamping plate is provided with multiple nails. The nails are arranged in correspondence with the nail slots. The two clips are respectively arranged at both ends of the clamping assembly.

[0012] Furthermore, the sweating unit includes a water bath, a first water pump, and a water spraying assembly arranged in sequence. The water spraying assembly includes a water storage tank, a water pump, a second water pump, a water outlet pipe, and a water spraying pipe. The second water pump is connected to the water storage tank through the water pump, and the second water pump is connected to the water spraying pipe through the water outlet pipe. The water spraying pipe and the water storage tank are arranged opposite each other on both sides of the support arm unit.

[0013] Furthermore, the power unit includes a first transmission assembly and a second transmission assembly connected together. The first transmission assembly can drive the sample unit to reciprocate along a first direction, and the second transmission assembly can drive the sample unit to reciprocate along a second direction. The first transmission assembly includes a first motor, a first lead screw, a first slide rail, a first bearing plate, and a first slider. The first motor and the first bearing plate are respectively disposed at both ends of the first slide rail, and both ends of the first lead screw are respectively connected to the first motor and the first bearing plate. The first slider is sleeved on the first lead screw. The second transmission assembly includes a second motor, a second lead screw, a second slide rail, a second bearing plate, and a second slider. The second motor and the second bearing plate are respectively disposed at both ends of the second slide rail, and both ends of the second lead screw are respectively connected to the second motor and the second bearing plate. The second slider is sleeved on the second lead screw, and the second slide rail is fixedly connected to the first slider.

[0014] Furthermore, the device also includes a force measurement unit and a data acquisition system. The force measurement unit is connected to the power unit, and the force measurement unit is electrically connected to the data acquisition system.

[0015] Furthermore, the force measurement unit is configured as a force sensor.

[0016] Furthermore, the device also includes a control system, with the power unit, sweating unit, and data collection system electrically connected to the control system.

[0017] The fabric wet adhesion testing device of this invention has the following advantages:

[0018] 1. By setting up a power unit, sample unit, support arm unit and sweating unit, the sweating unit simulates the state of human sweating by adjusting the water volume and temperature. The power unit drives the clothing sample to adhere to the human body. The human body can feel the real feeling of the clothing adhesion after sweating. The process of the sample unit gradually separating from the human forearm after sweating can be objectively and quantitatively displayed by the force measurement unit, so as to obtain more objective and accurate clothing adhesion force test results.

[0019] 2. The position of the human forearm can be adjusted, ensuring the human body remains in a comfortable state throughout the test and improving the accuracy of the test.

[0020] 3. The sweating unit allows for adjustment of water temperature and flow rate, achieving an effect that simulates the sweating state of a real human body;

[0021] 4. Sample replacement is convenient, quick, and easy to operate;

[0022] 5. The unit structure of the device is rationally designed, with a high degree of integration and automation. Attached Figure Description

[0023] Figure 1 This is a perspective view of the wet adhesion force testing device for clothing of this utility model.

[0024] Figure 2 This is a front view of the fabric wet adhesion testing device of this utility model.

[0025] Figure 3 This is a top view of the fabric wet adhesion testing device of this utility model.

[0026] Figure 4 This is a left-side view of the fabric wet adhesion testing device of this utility model.

[0027] Figure 5 This is an enlarged view of the clamping frame in the wet adhesion force testing device for clothing of this utility model.

[0028] Figure 6 Questionnaire A on the skin adhesion of textiles.

[0029] Figure 7 Questionnaire B on the adhesion of textiles to the skin. Detailed Implementation

[0030] To better understand the purpose, structure, and function of this utility model, the wet adhesion test method and device for clothing of this utility model will be described in detail below with reference to the accompanying drawings.

[0031] like Figures 1 to 5 As shown, the fabric wet adhesion testing device includes a machine base and a control system. The machine base is equipped with a data acquisition system, a power unit, a force measurement unit, a sample unit, a perspiration unit, and a support arm unit. The support arm unit includes a support portion and a gripping component. The side where the data acquisition unit is located is defined as the rear side, the side where the perspiration unit is located is defined as the front side, the side where the support portion is located is defined as the right side, and the side where the gripping component is located is defined as the left side. The direction of movement along the line connecting the front and rear sides is the first direction, and the direction of movement along the line connecting the left and right sides is the second direction. The subject's forearm is placed on the support arm unit, and the perspiration unit is positioned opposite to it. The control system... The sweating unit sprays water onto the human forearm to simulate human sweating. The clothing sample is placed on the sample unit. The power unit is connected to the sample unit. The control system drives the power unit to reciprocate along the first and second directions on the machine platform to make the sample on the sample unit adhere to the human forearm. After the sweating unit simulates human sweating, the power unit can gradually separate the sample from the human forearm. The power unit is connected to a force measuring unit, which is electrically connected to the acquisition system. The force measuring unit detects the force value of the sample adhesion force in real time. The acquisition system inputs the force value information to the control system to obtain a data curve of the relationship between adhesion force and displacement.

[0032] This utility model's wet fabric adhesion testing device comprises a power unit, a sample unit, a support arm unit, and a sweating unit. The sweating unit simulates human sweating by adjusting the water volume and temperature. The power unit drives the fabric sample to adhere to the human body, allowing the user to perceive the fabric's adhesion after sweating. The process of the sample unit gradually separating from the sweating forearm is demonstrated by the force measurement unit, which objectively and quantitatively displays the degree of fabric adhesion. Furthermore, the support arm unit allows for the placement of the user's arm, facilitating both pre- and post-test investigations. By combining the user's perception of the wet fabric adhesion, a comprehensive evaluation of the fabric's wet adhesion can be achieved, resulting in more objective and accurate test results.

[0033] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, will take the specific structure of the wet adhesion testing device for clothing as an example to further illustrate the wet adhesion testing device for clothing of this utility model.

[0034] like Figures 1 to 5As shown, the fabric wet adhesion testing device includes a machine base 100 and a control system 200. The machine base 100 is equipped with a data acquisition system 300, a power unit 400, a force measurement unit 500, a sample unit 600, a perspiration unit 700, and a support arm unit 800. The support arm unit 800 can hold a human forearm. The fabric sample to be tested is placed on the sample unit 600, which is fixedly connected to the power unit 400. The sample unit 600 and the support arm unit 800 are positioned at the same height relative to each other, ensuring that the sample and the human forearm are at the same height. It should be noted that this same height includes both a completely opposite height and a height with a certain deviation, as long as the effect of adhesion between the sample and the human forearm is achieved.

[0035] The control system 200 is electrically connected to the power unit 400, which is positioned opposite to the rear of the support arm unit 800. The control system 200 can drive the power unit 400 to reciprocate along a second direction on the machine platform 100, adjusting the relative position of the sample and the human forearm. This, in turn, drives the power unit 400 to move forward along a first direction on the machine platform 100, bringing the sample into contact with the human forearm. The control system 200 is also electrically connected to the sweating unit 700, which is positioned opposite to the front of the support arm unit 800. The control system 200 can drive the sweating unit 700 to spray water onto the human forearm on the support arm unit 800. The temperature and volume of the sprayed water can be adjusted by the control system 200 to simulate the actual sweating state of a person wearing clothing. The control system 200 drives the power unit 400 to move backward along the first direction on the machine platform 100, gradually separating the sample from the human forearm. A force measuring unit 500 is fixedly installed on the power unit 400. The force measuring unit 500 is electrically connected to the acquisition system 300, and the acquisition system 300 is electrically connected to the control system 200. When the power unit 400 drives the sample to separate from the forearm, the adhesion force received by the sample is measured by the force measuring unit 500. The acquisition system 300 transmits the measured adhesion force data to the control system 200. The adhesion force-displacement curve is obtained through analysis and calculation by the control system 200, thereby realizing the test of the wet adhesion force of the clothing.

[0036] Specifically, such as Figure 4 As shown, the support arm unit 800 includes a support part 810 and a gripping assembly 820 disposed opposite to each other. The support part 810 is disposed on the right side of the machine platform 100. The support part 810 is connected to the machine platform 100 through a telescopic second adjusting rod to raise the subject's forearm so that it maintains a distance between itself and the machine platform 100, thereby increasing the comfort of the subject's arm and body during the test. The support part 810 has an overall downward curved arc structure, thereby further improving the comfort of the human forearm when it is placed.

[0037] The grip assembly 820 is located on the left side of the machine 100. The grip assembly 820 includes a handle 821, a support arm 824, a first adjustment plate 822, and a second adjustment plate 823, which are sequentially and movably connected. The first adjustment plate 822 has a first track 825 formed by a groove structure. The first track 825 and the handle 821 are connected by the support arm 824, so that the handle 821 can reciprocate on the first adjustment plate 822 in a first direction, thereby adjusting the distance between the support part 810 and the handle 821 to adapt to the length of the subject's forearm. The second adjustment plate 823 has a second track formed by a groove structure, so that the first adjustment plate 822 can reciprocate on the second adjustment plate 823 in a second direction, adjusting the lateral offset angle between the support part 810 and the handle 821 to adapt to the subject's forearm placement angle and grip angle, so that the subject is in a comfortable gripping state, thereby improving the accuracy and reliability of the test.

[0038] Furthermore, the support arm unit 800 also includes a wrist support 830, which is connected to the second adjustment plate 823 via a telescopic first adjustment rod. The wrist support 830 is located between the support portion 810 and the grip 821 and is used to support the subject's wrist. At the same time, it can move up and down via the first adjustment rod to match the height of the subject's wrist after gripping. Thus, the subject can adjust the grip position through the grip component 820, allowing the subject to conduct the test in a comfortable state. The wrist support 830 helps reduce the subject's fatigue and discomfort, further improving the accuracy and reliability of the test.

[0039] It is important to note that the subject's forearm needs to remain still during the test to obtain accurate adhesion test results. Therefore, in this embodiment, a support arm unit is provided to support the forearm, which can adjust the forearm placement angle and grip angle, as well as support the wrist. This is to prevent the subject's forearm from undergoing active or passive displacement due to prolonged arm placement, fatigue, or discomfort during the test, thus ensuring the accuracy and effectiveness of the test.

[0040] like Figure 3 and Figure 4As shown, the power unit 400 is mounted on the machine base 100, located behind the support arm unit 800. It includes a first transmission component 410 and a second transmission component 420 connected together. The power unit 400 is electrically connected to the control system 200. The control system 200 calculates and sends commands through an algorithm to precisely control the moving speed and position of the two transmission components. The second transmission component 420 can drive the sample unit 600 to move left and right reciprocally along a second direction. The first transmission component 410 is slidably mounted on the second transmission component 420 and is detachably connected to the sample unit 600. It can drive the sample unit 600 to move back and forth along a first direction, allowing the power unit 400 to move freely in a two-dimensional plane to adapt to different fabric requirements.

[0041] Specifically, the first transmission assembly 410 includes a first motor 411, a first lead screw 412, a first slide rail 413, a first bearing plate 414, and a first slider 415. The first motor 411 is disposed at one end of the first slide rail 413, which is fixedly connected to the machine base 100. The first bearing plate 414 is disposed at the end of the first slide rail 413 away from the first motor 411. One end of the first lead screw 412 is fixedly connected to the output end of the first motor 411, and the end of the first lead screw 412 away from the first motor 411 is fixedly connected to the first bearing plate 414. The first slider 415 is sleeved on the first lead screw 412 and slidably connected to the first slide rail 413. The second transmission assembly 420 is fixedly connected to the first slider 415, and the first motor 411 is electrically connected to the control system 200. The first motor 411 provides power and converts the rotational motion into linear motion through the first lead screw 412. The first slide rail 413 and the first slider 415 ensure the smoothness and accuracy of the linear motion. The first bearing plate 414 is used to support the other end of the first lead screw 412 and maintain its stability, thereby realizing the reciprocating movement of the sample unit 600 along the first direction.

[0042] The second transmission assembly 420 includes a second motor 421, a second lead screw 422, a second slide rail 423, a second bearing plate 424, and a second slider 425. The second motor 421 is disposed at one end of the second slide rail 423, and the second bearing plate 424 is disposed at the end of the second slide rail 423 away from the second motor 421. One end of the second lead screw 422 is fixedly connected to the output end of the second motor 421, and the end of the second lead screw 422 away from the second motor 421 is fixedly connected to the second bearing plate 424. The second slider 425 is sleeved on the second lead screw 422 and slidably connected to the second slide rail 423. The second slide rail 423 is fixedly connected to the first slider 415. The second motor 421 is electrically connected to the control system 200. The second motor 421 provides power and converts the rotational motion into linear motion through the second lead screw 422. The second slide rail 423 and the second slider 425 ensure the smoothness and accuracy of the linear motion. The second bearing plate 424 is used to support the other end of the second lead screw 422 and maintain its stability, thereby realizing the reciprocating movement of the sample unit 600 along the second direction.

[0043] like Figure 2 and Figure 4 As shown, the sample unit 600 is connected to the power unit 400 and is positioned opposite each other on the rear side of the forearm. A bracket is provided on the second slider 425 of the power unit 400, and the force measuring device is fixedly connected to the bracket. The force measuring device is electrically connected to the acquisition system 300, and the acquisition system 300 is electrically connected to the control system 200. The force measuring device is used to measure the adhesion force between the clothing sample and the skin of the subject's forearm in real time. In this embodiment, the force measuring device uses a force sensor, which transmits the force data to the control processing system through the acquisition system 300 for analysis and calculation.

[0044] The sample unit 600 includes a clamping frame 610 and a connecting part 630. The clamping frame 610 is connected to the bracket of the power unit 400 via the connecting part 630. The connecting part 630 has a groove. The clamping frame 610 includes a first clamping component 611 and a second clamping component 612 disposed opposite to each other. The first clamping component 611 and the second clamping component 612 are connected by a connecting frame 620. The connecting frame 620 is provided with a protrusion that can engage with the groove on the connecting part 630, thereby allowing the clamping frame 610 and the connecting part 630 to be detachably connected. The purpose of this detachable structure is that the first clamping component 611 and the second clamping component 612 are used to fix both ends of the fabric to be tested. During testing, the fabric sample needs to be changed frequently. Removing the clamping frame 610 from the connecting part 630 makes it easier to change the sample, improving the convenience of operation. It is understood that other movable connection methods such as bolts or buckles can also be used to connect the clamping frame 610 and the connecting part 630.

[0045] Specifically, such as Figure 5As shown, the first clamping assembly 611 includes a first rod 613 and a first clamping plate 614. The first rod 613 has multiple first nail slots (not shown in the figure), and the first clamping plate 614 has multiple first nails 615, each corresponding to a first nail slot. The second clamping assembly 612 includes a second rod and a second clamping plate. The second rod has multiple second nail slots, and the second clamping plate has multiple second nails, each corresponding to a second nail slot. The upper and lower ends of the fabric sample are respectively positioned between the two sets of rods and clamping plates. The sample is fixed by the engagement of the nails and nail slots. Alternatively, the first nails 615 can be positioned on the first rod 613, and the first nail slots on the first clamping plate 614, and the second clamping assembly 612 can be similarly positioned. In this embodiment, the sample is fixed using a combination of nails and nail slots, ensuring that the fixed ends of the sample still have a certain space for tensile deformation, simulating the real deformation that occurs when fabric comes into contact with human skin.

[0046] Furthermore, the clamping frame 610 also includes two first clips 616 and two second clips. The two first clips 616 are respectively disposed at the left and right ends of the first clamping component 611, and the two second clips are respectively disposed at the left and right ends of the second clamping component 612. This enhances the fit between the first rod 613 and the first clamping plate 614, as well as between the second rod and the second clamping plate, thereby achieving a stable clamping effect on both ends of the sample. It is understood that those skilled in the art can choose other structures such as locking buckles according to actual needs, as long as they can achieve the effect of fixing both sides of the sample.

[0047] like Figure 3 and Figure 4 As shown, the sweating unit 700 includes a third motor 701, and a digital display constant temperature water bath 702, a miniature first water pump 703, and a water spray assembly connected in sequence. The first water pump 703 and the water spray assembly are fixedly connected to the machine base 100. The third motor 701 is connected to the water pump, and the first water pump 703 is fixedly connected to the third motor 701. The third motor 701 is electrically connected to the control system 200. The third motor 701 serves as a power source to control the operation of the first water pump 703. One end of the first water pump 703 is connected to the digital display constant temperature water bath 702 via a pipe, and the water outlet of the first water pump 703 is connected to the water spray assembly to draw water from the digital display constant temperature water bath 702 and spray it onto the forearm through the water spray assembly. The digital display constant temperature water bath 702 provides water at a constant temperature, effectively controlling the water temperature and volume, which helps to better simulate actual wearing conditions and makes the test results closer to actual use.

[0048] The water spray assembly is positioned opposite each other on the front side of the support arm unit 800, and includes a water storage tank 704, a water suction pipe 705, a second water pump 706, a water outlet pipe 707, and a water spray pipe 708. The water spray pipe 708 and the water storage tank 704 are positioned opposite each other on both sides of the support arm unit 800, so that the water sprayed from the water spray pipe 708 falls into the water storage tank 704 after passing the human body for recycling. One end of the water suction pipe 705 is connected to the water storage tank 704, and the end of the water suction pipe 705 away from the water storage tank 704 is connected to the second water pump 706. The outlet end of pump 706 is connected to outlet pipe 707. The second water pump 706 usually has a certain pressure and flow rate to ensure that the water can flow stably and be sprayed evenly to the target area. The end of outlet pipe 707 away from the second water pump 706 is detachably connected to spray pipe 708. Spray pipe 708 can be replaced according to different spraying effect requirements. Spray pipe 708 is provided with several spray holes. Different spraying effects can be achieved by adjusting the size, number and arrangement of the spray holes.

[0049] The method for testing the wet adhesion of the fabric using the above-mentioned fabric wet adhesion testing device is as follows: S1 Experimental preparation, S2 Dynamic simulation, S3 Data acquisition, and S4 Functional evaluation.

[0050] Specifically, the S1 experimental preparation includes adjusting and controlling the experimental environment, preparing the clothing to be tested as a sample, loading the sample into the sample unit, collecting the subject's skin condition information, placing the subject's forearm on the support unit, and wearing a blindfold. The temperature and humidity of the experimental environment are set to ensure the experiment is conducted under controlled conditions. The temperature is set between 28℃ and 32℃, and the humidity is set between 57% and 63% to simulate the actual wearing environment and reduce the impact of environmental factors on the test results.

[0051] Prepare the fabric sample to be tested. Cut the sample so that its long side is parallel to the radial direction of the fabric, ensuring a sufficient number of samples of each type are available for testing to guarantee consistency and comparability. Cut the sample to a length of 140mm-160mm and a width of 70mm-90mm. Load the cut sample into the sample unit. Specifically, remove the clamping frame of the sample unit, disassemble the clamping clips, place the sample between the nails and nail slots on the clamping assembly of the clamping frame, secure the clamping assembly with the clips, and then connect the clamping frame to the sample unit. In this embodiment, the fabric sample is cut to a size of 80mm-150mm to facilitate fixing it in the clamping frame of the sample unit.

[0052] like Figure 6As shown, the skin condition information of the test subjects was collected, and the test subjects were selected to conduct questionnaire A survey to ensure that the skin condition of the test subjects met the test requirements, such as no history of skin diseases, no history of laser hair removal, no scars, and no recent body hair treatment, so as to ensure the basis of test accuracy and reliability and avoid test errors caused by personal factors of the test subjects.

[0053] The subject places their forearm on the support unit, specifically on the supporting part of the unit. The elbow of the test arm is positioned in the middle of the supporting part to ensure consistency of the testing area. The subject is also required to grip the handle to ensure stability of the testing area. The distance between the grip and the supporting part is adjusted according to the subject's forearm condition, and the right hand firmly grips the handle. Furthermore, the subject wears a blindfold to prevent them from visually obtaining information about the fabric's wetness, thereby enhancing their tactile sensation in the forearm and improving the accuracy and effectiveness of the sensory characteristic evaluation.

[0054] The S2 dynamic simulation involves first opening the testing software via the control system, inputting sample information and test parameters, and then driving the power unit to bring the sample into contact with and attach it to the forearm. The control system then drives the sweating unit to spray water onto the skin to simulate the forearm's sweating process, causing the sample unit to move away from the subject's forearm until it is completely separated from the forearm skin. Furthermore, before moving the sample unit away from the subject's forearm, it needs to be left to stand for a period of time to allow the sample to remain wet and make full contact with the skin, facilitating tactile sensation and improving the accuracy and effectiveness of the test.

[0055] Analysis of experimental data revealed that the normal adhesion force can serve as a parameter characterizing the results of different samples under varying water content. In machine experiments, the mean adhesion forces of different samples under different water contents (0 ml, 1 ml, 5 ml, 10 ml, 15 ml) showed significant differences. Increasing the water content significantly affected the adhesion force, especially at 10 ml, where the adhesion force reached its highest value. In the forearm experiment, different water contents significantly affected the average forearm adhesion force (cN). The adhesion forces at 10 ml and 15 ml were significantly higher than those at 0 ml, 1 ml, and 5 ml. Water content significantly affected the normal adhesion force, particularly at 10 ml and 15 ml. Because the amount of water added is higher than other amounts, it is recommended to set the amount of water added to 10ml for the normal adhesion test. Therefore, in the dynamic simulation, the amount of water added to the sweating unit is set to 10ml to 15ml, the water addition rate is set to 4ml / min to 6ml / min, the initial load of the sample unit is 4cN to 6cN, the settling time is 8s to 12s, the separation speed of the sample unit is 8mm / min to 12mm / min, and the separation distance between the sample and the arm is set to 25mm to 35mm. Based on the comprehensive analysis of the experimental data, the equipment parameters in this embodiment are set as follows: sweating amount 10ml, initial load 5cN, sweating rate 5ml / min, settling time 10s, separation speed 10mm / min, sample application speed 300mm / min, and separation distance 30mm.

[0056] The S3 collects data by detecting force values ​​in real time through the force measurement unit. The signal is transmitted to the control system through the data acquisition system. After the clothing sample is completely separated from the skin of the subject's forearm, the control system automatically calculates and obtains a curve showing the relationship between adhesion force and displacement.

[0057] S4 sensory evaluation involves collecting the sensory characteristics of the clothing sample upon contact with the forearm skin from the test subject, and combining this evaluation with data curve results for a comprehensive assessment. For example... Figure 7 As shown, the sensory characteristics were evaluated using Questionnaire B, which included ratings for dryness to wetness, separation to adhesion, and smoothness to clinginess. These parameters are important for measuring the sensory experience when textiles interact with the skin.

[0058] The fabric wet adhesion testing device of this embodiment has a reasonable structural design and is easy to use. This structure can also be used for other devices with similar usage requirements. In this embodiment, the fabric wet adhesion testing device and method objectively evaluate the skin adhesion performance of the fabric through physical testing methods, and also obtain the subjective feelings of the test subject through sensory evaluation, thereby achieving a combination of subjective and objective data, providing a more comprehensive evaluation, providing important technical support for the design and production of the textile industry, helping manufacturers to improve fabric performance, and thus design products that better meet market demands and improve the wearing experience.

[0059] The terms “above,” “below,” and “within” as used above include the number itself; the terms “exceeding” and “excluding” do not include the number itself.

[0060] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made to the above embodiments by those skilled in the art after reading this specification are all within the scope of protection of the present invention. The various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations.

[0061] If the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

Claims

1. A device for testing the wet adhesion of clothing, characterized in that, It includes a power unit, a sample unit, a sweating unit, and a support arm unit. The support arm unit is used to place a human arm. The sweating unit is positioned opposite to one side of the support arm unit and can simulate the sweating effect of the human arm on the support arm unit. The sample unit is positioned opposite to the other side of the support arm unit. The power unit is connected to the sample unit and can adjust the distance between the sample unit and the support arm unit so that the clothing to be tested on the sample unit can be attached to and separated from the human arm on the support arm unit.

2. The fabric wet adhesion testing device as described in claim 1, characterized in that, The support arm unit includes a support portion and a gripping component arranged opposite each other, and the distance between the support portion and the gripping component is adjustable.

3. The fabric wet adhesion testing device as described in claim 2, characterized in that, The grip assembly includes a grip, a first adjustment plate, and a second adjustment plate that are movably connected in sequence. The first adjustment plate has a first track so that the grip can reciprocate on the first adjustment plate in a first direction. The second adjustment plate has a second track so that the first adjustment plate can reciprocate on the second adjustment plate in a second direction.

4. The fabric wet adhesion testing device as described in claim 3, characterized in that, The arm support unit also includes a wrist support and a first adjustment rod. The wrist support is located between the support part and the handle. The wrist support and the second adjustment plate are connected by the first adjustment rod to support the wrist joint of the human forearm.

5. The fabric wet adhesion testing device as described in claim 1, characterized in that, The sample unit includes a detachably connected clamping frame and a connecting part, with the clamping frame connected to the power unit via the connecting part.

6. The fabric wet adhesion testing device as described in claim 5, characterized in that, The clamping frame also includes a clamping assembly and two clips. The clamping assembly includes a rod and a clamping plate. One of the rod and the clamping plate is provided with multiple nail slots, and the other of the rod and the clamping plate is provided with multiple nails. The nails are arranged in correspondence with the nail slots. The two clips are respectively arranged at both ends of the clamping assembly.

7. The fabric wet adhesion testing device as described in claim 1, characterized in that, The sweating unit includes a water bath, a first water pump, and a water spraying assembly arranged in sequence. The water spraying assembly includes a water storage tank, a water pump, a second water pump, a water outlet pipe, and a water spraying pipe. The second water pump is connected to the water storage tank through the water pump, and the second water pump is connected to the water spraying pipe through the water outlet pipe. The water spraying pipe and the water storage tank are arranged opposite each other on both sides of the support arm unit.

8. The fabric wet adhesion testing device as described in claim 1, characterized in that, The power unit includes a first transmission assembly and a second transmission assembly connected together. The first transmission assembly can drive the sample unit to reciprocate along a first direction, and the second transmission assembly can drive the sample unit to reciprocate along a second direction. The first transmission assembly includes a first motor, a first lead screw, a first slide rail, a first bearing plate, and a first slider. The first motor and the first bearing plate are respectively disposed at both ends of the first slide rail, and both ends of the first lead screw are respectively connected to the first motor and the first bearing plate. The first slider is sleeved on the first lead screw. The second transmission assembly includes a second motor, a second lead screw, a second slide rail, a second bearing plate, and a second slider. The second motor and the second bearing plate are respectively disposed at both ends of the second slide rail, and both ends of the second lead screw are respectively connected to the second motor and the second bearing plate. The second slider is sleeved on the second lead screw, and the second slide rail is fixedly connected to the first slider.

9. The fabric wet adhesion testing device as described in any one of claims 1 to 8, characterized in that, The device also includes a force measurement unit and a data acquisition system. The force measurement unit is connected to the power unit, and the force measurement unit is electrically connected to the data acquisition system.

10. The fabric wet adhesion testing device as described in claim 9, characterized in that, The force measurement unit is set as a force sensor.

11. The fabric wet adhesion testing device as described in claim 9, characterized in that, The device also includes a control system, and the power unit, sweating unit and data collection system are electrically connected to the control system.

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