Sort out Test Methods of Shoes Dynamic Waterproof Table of contents What kind of shoes are tested for dynamic waterproofing? What is finished shoes dynamic waterproof test ? What is the principle of the test? How to choose? What kind of shoes are tested for dynamic waterproofing? Waterproof shoes are a general term for shoes with waterproof effects. There are two main types: 1. They are waterproof shoes specially worn on rainy days, that is, rubber shoes. 2. They refer to shoes with certain waterproof effects such as sports shoes and leather shoes. The most prominent is waterproof outdoor sports shoes. The materials of  dynamic waterproof shoes generally use rubber, artificial leather, leather, etc. with better effects. This paper studies and discusses the test method of waterproof performance from finished shoes. What is finished shoes dynamic waterproof test ? What is the principle of the test? The dynamic waterproof test of finished shoes mainly simulates the daily use conditions of finished shoes to test their waterproof performance under bending motion. There are three main methods for testing the dynamic waterproof performance of finished shoes, namely the water tank test method, the bending waterproof method and the rotating wet brush test method. Three test methods for dynamic waterproof 1. Analysis of water tank test method The water tank test method constructs a water tank test system for the waterproofness of finished shoes, which mainly simulates the human body wearing finished shoes and walking for a certain distance in water with a specified depth at a normal speed, and checks to determine the scope of water penetration into the shoes. Footwear Water Penetration testing machine GT-KA02-1 Install finished shoes on test device, and ill the tank with a certain deep of water to touch with shoes. lt push forward the forefootbending by certain angle and frequency by simulating people walking in water with shoes,to test bending times required for waterpenetrate from shoes outside to inside or determine the penetration situation after certain bending times. Standards: SATRA TM77 2. Analysis of bending waterproof test method By putting the finished shoe into the water tank for bending treatment, measure the time required for water to penetrate from the outer surface of the shoe into the shoe or the number of times of bending. GT-KA02-2 Dynamic Footwear Water Resistance Tester, the water tank is flled with a specified volume of colored water. A specimen is put on the artificial foot and flexed at a given angleand speed, and inspected at intervals for water penetration. Standards: SATRA TM 230, lSO20344-2021 section 5.19 3. Analysis of rotating wet brush test method The rotary wet brush test method is to put the finished shoe sample into a water tank of a certain depth, and use the rotary wet brush test method to perform mechanical operations to correctly check the penetration range of water. GT-KA03 Shoe Water Resistance Tester is used t...

Cornell Tester Mattress Spring Fatigue Tester uses sofa Cornell fatigue life test method, motor drive eccentric wheel, adjust the impacting height of the impact block, then impact the testing mattress by 120-160 times / min, counter measures the impacting times, shut down automatically when reaches the setting times. Every machine needs maintenance, and Furniture tester Mattress Spring Fatigue Tester is no exception. Next, GESTER will tell you how to maintain the Cornell Mattress Spring Fatigue Testing Machine. Maintain Procedure 1. Cleaning : Keep the Mattress Spring Fatigue Tester clean at all times. 2. Rust protection : It should spray anti-rust oil on instrument metal surface regularly. 3. Lubrication : Add the lubricating oil to drive parts (such as rotary gears, bearings) of the fatigue tester periodically. 4. Check if each key of the control panel works well regularly.

GESTER Paper Crush Tester is well-designed using modern mechanical design theory and human engineering design criteria and micro-process. How do you operate Paper Crush Tester ? 1. Turn on Crush Tester Machine For Corrugated Boxes. 2. Click “DOWN" to adjust the height of the lower pressure plateto the appropriate position, then click "Stop". 3. Clamp the sample between two clamping blocks and place it on the lower pressure plate. 4. Click“SET" to enter the setting interface, and click “Test Type" to select the test. 5. After test parameters set, return to the test interface. 6. Click“ZERO" to clear, click“TEST" to start the test. 7. After ring crush tester paper test is completed, the lower pressure plate automatically drops,take out sample and clamp block. 8. Click “PRINT" to print the test results if need.

This Bally resistance flexing tester is used to determine the resistance of a material to cracking or other types of failure at flexing creases. The method is applicable to all flexible materials and in particular leathers, coated fabrics and textiles used in footwear uppers. Bally Flex Tester for Leather Materials Attention 1. In case of bally test machine damage, please calibrate when the power is off. 2. If the machine is off for quit a long time ( eg: overnight), just leave the specimen in the jig but should turn the jig to keep the specimen incompletely straight. 3. If the error value between the measured value and set value (standard value) is beyond the allowed range (refer to the inspection report) , please contact service department in our company. 4. In case of accident, clamp the specimen when power off. 5. In case of looseness while bally flex testing, confirm whether the set screws are locked after fixing the specimen. 6. Don't lock the screws too tight when clamping the specimen, so as to avoid damaging the specimen while bending. Bally Flexing Tester MAINTAIN PROCEDURE 1. Always keep the bally leather flexing tester clean and tidy. 2. The metallic surface shall be applied with anti-rust oil. 3. Fill lubricating oil for the drive disk assembly (bearings) at regular intervals.

What is The Test Method of IULTCS & Veslic Leather Abrasion Tester ? This IULTCS & Veslic Leather Abrasion Tester is used for color fastness testing of leather, plastic and textile. Under the specified pressure, let white wool felt to do reciprocating abrasion to the surface of dye sample. After a specified count, to assess the color fastness of sample by checking the color change and fading of sample and the discoloration of white wool felt. Rubbing Fastness Tester can be used for dry abrasion testing and wet abrasion test. How to operate the IULTCS & Veslic Leather Abrasion Tester ? 1. Turn on the emergency stop knob. 2. Lift the abrasion head and install the wool felt in to groove. 3. Install the sample and fix it on the fixture. 4. According to standard requirement, stretch the sampleto a certain ratio by adjusting the screw. 5. Put the abrasion head smoothly just above the sample. Make sure the abrasion hear parallel tothe sample and then lock the hand screw. (The weight above abrasion head can be removed or installed according to test requirement.) 6. Select 'English', click 'Set' enter parameter setting interface. Set the test time (Timer)or times (Counter) and speed.Then click 'Return' to back to the leather rub test interface. 7. Click 'Zero' to clear the data before leather abrasion test and click 'Start' to test. ("Micro": When you want to return the fixture to original position, please click it.) 8. When the set value is reached, the leather abrasion tester will stop automatically. 9. Remove the tested wool felt and sample, visually assess the changein color of the sample and the staining of the felt by using grey scales.

Slip resistance tester apply a predetermined load by different mediums like wood, PVC, ceramic tile or specified and set specified friction times and speed, which is to measure the sole friction coefficient, and then judge the slip resistance of shoes. How to Conduct the Footwear Slip Resistance Testing Machine With Computer 1. Install the shoes on the appropriate shoe last and lock it. 2. Connect the air pressure of about 0.7Mpa, and adjustthe pressure to display about 0.5Mpa, and press down. 3. Connect to AC 220V (1phase) power supply. Turn on the emergency stop switch of the power supply, boot up the computer and the display screen. 4. Click GT-KB48 Slip Resistance Tester For shoes software to enter the test software. According to the test standard you want to do, choose to place ISO or SATRA tiles on the test bench. 5. Install the shoe last with shoes on the sample rack and lock the screws. 6. Place the 7°angle gauge under the bottom of the shoe. 7. Turn the gear lever to the [set] position, and the sample holder will fall down freely. 8. Loosen the handles on both sides of the specimen holder. 9. Adjust the angle of the specimen holder so that it is parallel to the 7° angle gauge. Lock the handles on both sides to fix the sample holder. 10. Turn the gear lever to the [TEST] position, lift thesample holder and remove the 7 ° angle gauge. Select the test standard you need. 11. Click [Force time] in the test software, and then click [Test] to start the test. After the test is completed, the test report presents a curve.

Electronic Single Yarn Strength Tester  is to determine the breaking load and extension for single yarns, to make record and statistics and print out testresults. Standards: GB/T14344, GB/T3916, ISO2062, ASTM D2256  Feature 1.Able to preset tensile force. 2.Single yarn testing made of cotton,wool, jute, core-spun yarn etc can be tested. 3.Controlled by mictocomputer, displayed by LCD, printer ourputs reports. 4.Report, diagram can be printed out by printer. 5.Desktop structure, equip with high precision load sensor system, easy operated and stable.6.Can be connected with computer. Maintenance: 1. Always keep the tensile strength of yarn machine clean and tidy. 2. Pay attention to moisture-proof, dust-proof and anti-corrosion. 3. Regularly maintain the instrument, troubleshoot the instrument in time, and keep maintenance records. 4. Before using electronic instruments, you must read the instruction manual carefully, check your own protection devices as required, and control the ambient temperature, humidity, continuous working time, power supply voltage, etc. 5 Regularly conduct power-on inspections on electronic instruments. If any phenomena such as flashover, smoke, explosion, and peculiar smell are found, shut down immediately to prevent damage to the instrument due to short circuit and prolong the service life of the instrument. Single yarn strength test is used to test the breaking strength and elongation percentage of various cotton, wool, linen, silk, chemical fiber, core-spun single yarn, pure or blending natural or chemical fiber yarns

Mask Synthetic Blood Penetration Tester determine the resistance of medical protective masks to the penetration of synthetic blood under different test pressures. This Mask Testing Equipment can also be used to determine the blood penetration resistance of other coating materials. What is The Medical Mask Synthetic Blood Penetration Test Method ? 1. Add appropriate amount of synthetic blood from the filling hole. Generally need 500-1000ml. Connect the air tube of air compressor to the air filter.Then,connect the tube of the air filter to the machine. 2. Keep the air source pressure at 0.2MPa. Starting up, enter the test interface. 3. Click the "Shift" to change the test speed.This video uses 450cm/s as a demonstration. Click to"Inflate", wait until the inflation done.(The button will change from blue to white.). And then click "Spurt" to fill the whole pipe with synthetic blood. 4. Using a cup to collect the synthetic blood from the canula. Stop spurt and click "Inflate" again. Put a small cup at the entrance of the target plate to catch the excess synthetic blood. 5. After inflation done,click the "start" or the metal button on the panel to make thenozzle spray synthetic blood according to the set time. And observe whether the synthetic blood passes through the central hole of the target plate .If not, please use the handle toadjust the height of the nozzle to make it reach the appropriate height, and use the ruler to remember the height. 6. lnstall the sample. Open the back cover of the sample holder, stretch the prepared mask, place it on the raised disc,and close the back cover. After spurting, wait for 10 seconds for observation time. 7. Then take out the sample and observe the other side of the mask to see if the synthetic blood penetrates into it.lf there is penetration, it is unqualified. If not, it is qualified. GESTER Medical Face Mask Synthetic Blood Penetration Tester can fully simulate the human body's average blood pressure of 10.6kPa, 16kPa, and 21.3kPa spray speeds for testing.