Fabric dust prevention performance tester and detection method thereof

Abstract

The invention relates to the field of detection instruments, in particular to a fabric dust collection prevention performance tester and a testing method thereof.The fabric dust collection prevention performance tester comprises a base, a transparent outer cover, a lifting device, a dust carrying table, a fabric sample frame, a friction device and a light sensing device; the device is characterized in that a control panel is arranged on the base, the control panel and the transparent outer cover form a closed space, the lifting device is installed on the base, the lifting device is provided with a recording device, and the dust carrying table is arranged on the lifting device; a light sensing device, a fabric sample frame and a friction device are sequentially arranged on the dust objective table upwards and are fixed on the side wall of the instrument; the friction device comprises a friction plate and a friction motor, and the fabric sample frame is provided with a fixing device. Through the detection instrument provided by the invention, the electrification process of the fabric is simulated, and the dustproof performance of the fabric is detected.

Description

Technical Field

[0001] The present invention relates to the field of textile detection, and more particularly to a fabric anti-dust absorption performance tester. Background Art

[0002] During the production and use of textile fabrics, when the moisture content decreases and two substances on the surface rub against each other, static electricity is easily generated. Static electricity is formed due to the imbalance of positive and negative charges caused by the contact surface of an object, which will cause the excitation energy of electrons or ions between the surfaces, and positive or negative charges will accumulate. When a small non-static object approaches an object with a positive or negative charge, due to the static induction phenomenon, the end close to the charged object will induce an opposite electric charge to the charged object and be attracted and attached to the charged object. Therefore, when a static electricity-carrying textile fabric approaches dust or small foreign objects, a static electricity suction effect will occur, sucking up the dust or small foreign objects on the fabric surface, which is difficult to remove, greatly affecting the comfort and ornamental value of the fabric when worn. Among them, the dust sucked up by static electricity-carrying clothes in the air may contain various viruses, bacteria and harmful substances, which will affect the human respiratory tract, cause discomfort to patients with respiratory diseases, and even induce diseases such as tracheitis and asthma.

[0003] Therefore, an instrument and method are needed to detect the anti-dust absorption performance of textiles at the stage of clothing fabrics, and to prepare for the functional finishing of the fabrics. If it can be found in advance that the anti-dust absorption performance of the fabric is poor, corresponding finishing can be added in the post-finishing process of the fabric to ensure the comfort of the fabric. Summary of the Invention

[0004] To solve the above technical problems, the present invention intends to provide a fabric anti-dust absorption performance tester and a testing method, aiming at detecting the ability of a fabric to resist the attachment of dust and other small foreign objects after generating static electricity in a dry environment.

[0005] A fabric anti-dust performance tester includes a base, a control panel, a transparent outer cover, a lifting device, a dust and debris carrier, a fabric sample rack, a friction device, and a light sensing device; The base is provided with a control panel for operating the device, including setting the test environment when the instrument is working, such as parameters such as a standard atmospheric pressure, a temperature of (20±2)°C, and a relative humidity of (35±5)%, making it more realistically simulate the actual use environment of the fabric.

[0006] The base and the transparent outer cover form a closed space.

[0007] The base is installed with a lifting device, and the lifting device is equipped with a recording device that can directly record the height of the lifting device.

[0008] The dust and debris carrier is arranged on the lifting device.

[0009] A dust carrier stage is successively provided with a light sensing device, a fabric sample holder, and a friction device from bottom to top, and is fixed on the side wall of the instrument.

[0010] The fabric sample holder is provided with a fixing device for fixing the test sample to be tested and can be flipped 180°. During the working process, first fix the processed test sample on the fabric sample holder, and select the corresponding friction plate according to the test situation, including a rubber plate, a glass plate, or other fabrics (nylon fabric, acrylic fabric), etc.; after the friction is completed, flip the fabric sample holder 180° so that the test sample faces downwards and is directly opposite to the dust carrier stage.

[0011] The friction device consists of a friction plate and a motor. The friction plate is made of insulating material, and the motor can drive the friction plate to friction the test sample.

[0012] The light sensing device can detect the passage of dust in the horizontal direction. During the test process, the lifting device rises at a uniform speed. When the light sensing device detects the passage of dust, the light sensing device transmits a signal to the lifting device, and the lifting device immediately brakes when it receives the signal and records the lifting height of the lifting device.

[0013] In addition, the dust carrier stage even has a metering device with a metering function, that is, at the beginning of the test, record the mass m1 of the dust carried, record the mass m2 of the dust carried after the test ends, that is, the dust is sucked up by the test sample and the lifting device is braked, and △m = m1 - m2. This index is also used as one of the evaluation indexes for the dust-proof performance of the sample.

[0014] Furthermore, the rising speed of the lifting device is 60 mm / min.

[0015] Furthermore, the friction plate is an acrylic plate, a glass plate, a rubber plate or a fabric; using a fabric as the friction plate material can effectively simulate the actual situation during the wearing of clothes, such as the friction between polyester fabric and acrylic.

[0016] Furthermore, the dust is paper scraps, cigarette ash, cotton wool, etc.

[0017] Through the above technical solutions, the beneficial effects obtained by the present invention are as follows: By simulating the static electricity of the fabric with this device and through the lifting height of the lifting device and the situation of dust being sucked up, the dust-proof performance of the fabric can be quantitatively and visually detected and rated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Among them, 1. Base, 11. Control panel, 2. Transparent outer cover, 3. Side wall, 41. Lifting device, 42. Dust and debris carrier, 5. Friction device, 51. Friction motor, 52. Friction plate, 61. Fabric sample holder, 62. Sample fixing device, 63. Sample to be tested, 7. Light sensing device, 81. Humidity adjustment device, 82. Temperature adjustment device. Embodiment

[0020] The present invention will be further explained below in conjunction with embodiments. As Figure 1 As shown, a fabric dust-proof performance tester includes a base 1, a transparent outer cover 2, a lifting device 41, a dust and debris carrier 42, a fabric sample holder 61, a sample fixing device 62, and a friction device 5. The friction device 5 includes a friction motor 51 and a friction plate 52, a light sensing device 7, an 81. Humidity adjustment device, and an 82. Temperature adjustment device.

[0021] A control panel 11 is provided on the base 1, which can operate the device. When the instrument is working, it includes setting the test environment, setting test conditions such as a standard atmospheric pressure, temperature, humidity and other parameters through the control panel to operate the humidity adjustment device 81 and the temperature adjustment device 82. The base 1 and the transparent outer cover 2 form a sealed space. A lifting device 41 is installed on the base. The lifting device 41 is equipped with a recording device that can directly record the height lifted by the lifting device. A dust and debris carrier 42 is provided on the lifting device 41. The dust and debris carrier 42 is sequentially provided with a light sensing device 7, a fabric sample holder 61, and a friction device 5 upward, and is fixed on the side wall 3 of the instrument. The fabric sample holder 61 is provided with a fixing device 62 for fixing the sample to be tested and can be flipped 180°. During the working process, first fix the processed sample to be tested 63 on the fabric sample holder 61 through the fixing device 62, and select the corresponding friction plate 52 according to the test situation, including rubber plates, glass plates, or other fabrics (nylon fabrics, acrylic fabrics), etc.; after the friction is completed, flip the fabric sample holder 180° so that the sample to be tested faces downwards and is directly opposite to the dust and debris carrier 42.

[0022] The friction device 5 is composed of a friction plate 52 and a friction motor 51. The friction plate 52 is made of insulating material. The friction motor 51 can drive the friction plate 52 to friction the sample to be tested 63. The running speed is 1 reciprocating friction cycle per second, with a total of 20 friction cycles. The friction stroke is (150 ± 3) mm, and the downward pressure applied is (15 ± 0.5) N.

[0023] The light sensing device 7 can detect the passing of dust debris in the horizontal direction. When dust debris is detected passing through, the light sensing device 7 transmits a signal to the lifting device 41. Upon receiving the signal, the lifting device 41 immediately performs an instantaneous brake and records the lifting height of the lifting device.

[0024] According to the fabric dust-proof performance tester of the present invention, the dust-absorbing prevention performance of the fabric can be tested. A method for detecting the dust-absorbing prevention performance of a fabric includes the following steps: Step 1: Specimen preparation. Wash the sample to be tested continuously 5 times according to the 4N program in GB / T 8629-2017, and then dry the sample.

[0025] Step 2: Fix the sample to be tested processed in Step 1 on the fabric sample rack for fabric dust-proof performance. Set the friction program through the control panel. After the friction is completed, turn the sample downward by 180°.

[0026] Step 3: The lifting device starts to rise slowly and evenly. When the sample to be tested sucks up dust debris, that is, when the light sensing device detects the passing of dust debris, the lifting device is instantaneously braked.

[0027] Step 4: Rate the fabric dust-proof performance based on the rising height of the lifting device and the situation of the dust debris sucked up by the sample to be tested.

[0028] To make the test results more accurate and further reduce errors, in Step 2, cut 6 specimens each of the warp (or longitudinal) specimen and the weft (or transverse) specimen from the sample. The size of each specimen is 10 cm × 20 cm or an appropriate size; the final result also takes the average value of multiple test results.

[0029] Meanwhile, to make the rating more accurate, the results can be comprehensively rated from multiple dimensions including the rising height of the upgrading device and the situation of dust debris sucked up, such as the number of dust debris sucked up and the sucked-up mass.

[0030] The above specific implementation manners are for a clearer introduction of the present invention, and are only partial implementation manners of the present invention rather than a limitation on the protection scope of the present invention. Any non-creative addition or improvement made by those skilled in the art based on the present invention falls within the protection scope of the present invention.

Claims

1. A fabric anti-dust absorption performance tester, comprising a base, a transparent outer cover, a lifting device, a dust and debris carrier, a fabric sample rack, a friction device, and a light sensing device; characterized in that: A control panel is provided on the base, and together with the transparent outer cover, it forms a sealed space. The lifting device is installed on the base. The lifting device is equipped with a recording device, and a dust and debris carrier platform is provided on the lifting device; a light sensing device, a fabric sample rack, and a friction device are sequentially arranged upward on the dust and debris carrier platform, and are fixed on the side wall of the instrument; the friction device includes a friction plate and a friction motor, and the fabric sample rack is provided with a fixing device.

2. The fabric anti-dust absorption performance tester according to claim 1, characterized in that, The friction plate is one of a rubber plate, a glass plate, an acrylic plate or a fabric.

3. The fabric anti-dust absorption performance tester according to claim 1, wherein, The fabric sample rack can be turned downward by 180°.

4. The fabric anti-dust absorption performance tester according to claim 1, characterized in that, The dust and debris on the dust and debris carrier platform are any one of paper scraps, soot, and cotton fluffs.

5. The fabric anti-dust absorption performance tester according to claim 1, characterized in that, The dust and debris carrier platform is provided with a measuring device.

6. A method for conducting a test using a fabric anti-dust absorption performance tester as described in any one of claims 1-3, comprising the following steps: Step 1: Specimen preparation. Continuously wash the sample to be tested 5 times according to the 4N procedure in GB / T 8629-2017, and then dry the sample to be tested. Step 2: Fix the sample to be tested processed in Step 1 on the fabric sample rack for fabric anti-dust absorption performance. Set the friction program through the control panel. After the friction is completed, turn the sample downward by 180° so that the sample after friction faces downward directly opposite the dust and debris carrier platform. Step 3: The lifting device starts to rise slowly and evenly. When the sample to be tested adsorbs dust and debris, that is, when the light sensing device detects that there is dust and debris passing through, immediately brake the lifting device. Step 4: Evaluate the fabric dust prevention performance based on the rising height of the lifting device and the dust and debris picked up by the sample to be tested.

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