The waterproof property of the fabric is mainly divided into the resistance of the fabric to water wetting and the resistance of the fabric to water infiltration. The waterproof property of the fabric is characterized by the grade of water contamination, the grade of resistance to static water pressure, the permeability of water, etc. The testing methods are mainly divided into the dip method (spray method) and the static water pressure method. Common Problems happens during testing Improper operation may affect the results during hydrostatic pressure test. The following situations may affect the test results. To make sure there is no air between the sample and water before clamp the sample, then clamp the sample for test. If there is any air between sample and water, then water can't completely touch with specified test area, finally there will not appear water droplets in some part of the sample area, it will also affect the test result. During the test, try your best to ensure that the edge of the sample clamping device does not leak water and water. If the sample water seepage, leakage, on the edge of the clamping device testing will have water leaking from edge clamping device, sample test pressure can appear unstable phenomenon, it does not guarantee the accuracy of experimental results, will affect the result of the experiment. >>>GT-C26B Hydrostatic Pressure Testing Machine Determination of test end points Hydrostatic test standard, GB/T 4744-2013 textile waterproof performance testing and evaluation of hydrostatic pressure law provisions recorded in the presence of water samples on the third place of hydrostatic pressure value, test the finish for the third water droplets appear. If the test endpoint is not selected correctly during the test, it will have a direct impact on the reading of the experimental results, and the incorrect experimental results will be obtained.>>>GT-C26A Hydrostatic Head Tester for Textile Some special cases are as follows: If a third place water droplets appear on the edge of the clamping device, and leads to the third place drops of hydrostatic pressure value is lower than the same samples of other normal sample minimum, should eliminate this data, supplementary sample test separately, until get the normal experimental results. Under normal circumstances, the specimen edges due to the pressure of the clamping device, the edge of the specimen, prone to damage test, edge may be seeping water, in this case, is the analysis of the experiment test results, analysis of whether there lowest test value is lower than other normal sample, whether to need to supplement samples. In the standard annotations, if appear when the fabric rupture, water jet or compound fabric summon of filling water, record the pressure value, and introduced the experimental phenomena in the report. The above situations should be taken as the test end of the experiment.     How to solve Exception? Hydrostatic test re...

The National Institute of Metrology, Quality and Technology (INMETRO) of Brazil has enacted Decree No. 42/2018 to approve the quality and technical regulations for infant walkers. The regulations take effect immediately. The main contents are as follows: Scope of application:: 1. Apply to: infant walkers, including inflatable parts, children can be supported by the seat and the crotch is tied, connected to the hard structure, and there are wheels or casters. 2. Do not apply to:infant and toddler walkers for therapeutic and therapeutic purposes, as well as child-advanced, standing positions, and walkers specifically for export. Registration/certification: 1. According to Regulation No. 512/2016, infant walkers must be registered with INMETRO. 2. The registration of INMETRO is mandatory to obtain conformity marks and availability in the domestic market. General requirements: 1. Walker shall not cause harm to children after assembly and use. 2. The materials used must meet the flame retardant requirements 3. Risk warnings on walkers should be in Portuguese 4. The walker should be affixed with warnings and instructions reflecting the importance of reading instructions. 5. The toy (the toy that is attached to the walker) should meet the specific requirements. 6. All parts with electronic circuits or sounds shall comply with NM300-1 and -6 sections. 7. Any textile that can be removed from the walker should be cleaned and dried according to the manufacturer's instructions. The term:    For manufacturers or importers, these requirements must be met within 18 months after the issuance of this regulation.    For stores (including wholesale), these requirements must be met within 24 months after the issuance of this regulation.    For stores (retailers) sold to end consumers, these requirements must be met within 36 months after the issuance of this regulation. Note: Even within a sufficient period of time, domestic manufacturers and importers still need to be responsible for the safety of walkers on the domestic market. And the harm caused by the use of the product or the risk involved by the child.

Rubber vulcanized or thermoplastic- Accelerated aging and heat resistance tests- Air oven method 1. Principle: Test pieces are subjected to high temperature and at atmospheric pressure, after which specified properties are measured and compared with those of unaged test pieces.The physical properties concerned in the service application should be used to determine the degree of deterioration but, in the absence of any indication of these properties, it is recommended that tensile strength, stress at intermediate elongation, elongation at break and hardness be measured. 1.1 Accelerated ageing by heating in air In this method, with the low oxygen concentration, the oxygen can’t fully diffuse into the rubber to keep oxidation synchronous, even if the oxidation rate is fast. Therefore, when a sample of the thickness specified in the standard test methods is suitable for using in this method, it may give erroneous results for the rubber with poorly aging resistance. 1.2  Heat resistance test In this test method, the test pieces are subjected to the same temperature as they would experience in service in the stipulated time, then test the appropriate properties and compare with unaged pieces. 2.Apparatus: 2.1 Aging Oven which shall be fulfilled below requirement: Equipped with forced air circulation device, air flow rate 0.5m/s～1.5m/s, the min. Surface area of test piece shall be against airflow to avoid the rate of airflow be interfered. The oven shall be of such a size that the total volume of the test pieces does not exceed 10% of the free space in the oven. Provision shall be made for suspending test pieces so that they are at least 10mm from each other and, at least 50mm the sides of the oven. The temperature of the oven shall be controlled so that the temperature of the test pieces is kept within the tolerances of the specified test temperature; A temperature sensor shall be placed inside to record the actual ageing temperature. No copper or copper alloys shall be used in the onstruction of the heating chamber. Provision shall be made for a slow flow of air through the oven of not less than three and not more than then air changer per hour. Before entering the aging chamber, the air should be heated to within the tolerances of the test temperature specified by the aging oven. The Eligible GESTER Machine: GT-KD01 Aging Oven The other apparatus for rubber properties measurement above mentioned: GT-K01 Universal Testing Machine GT-KD09-LX-A Shore A Durometer 2. Test pieces The test pieces preparation should follow GB/T 9865.1 It is recommended that the accelerated ageing or heat resistance test carries our on the test pieces conditioned as per GB/T 2941, and no on the completed products or sample sheet. The aged test piece will no be required for mechanical, chemical or heat treatment. The number of specimens before and after aging is usually measured in five and should not be less than three. Only test pieces of similar size shall be comp...

Pakistan Oak Trading Company Mr. Talha & Mr. Moeen on Tuesday called on Gester instruments to strengthen cooperation in footwear testing equipment. During the visit, Gester piolted the delegation through the office, factory and explained every process to OAK. Delegation made the remarks during visit. OAK Trading Company-GESTER cooperation in shoes testing is conducive to mutual benefit and win-win results, and will further substantialize the "Golden Era" of relations, Mr. Moeen said. GESTER Footwear testing equipment: Tensile Testing Machine Abrasion Tester Flexing Tester Fatigue Tester Impact Tester ....   Gester Instruments Co.,LTD is professionally engaged in production and R&D of physical properties testing equipment. With nearly 20 years experience in research and development,we specialize in providing the total solutions of Toys and Baby Stuff Testing Equipment, Textiles & Garments Testing Equipment and Footwear Testing Equipment.

Have you ever think about your chair is safety enough? Reports of various safety issues with chair products have become commonplace in recent years. This also effect customers when they are purchasing the furniture, not only concern about the price but also focus on the quality and safety factors, It is understood that the developed countries like the United States and European countries that attach great importance to the detection of furniture. A high-quality furniture product is produced after passing several procedures (many comprehensive tests). Test Standards such as BIFMA X5.1—2017 , EN 1728. So, what’s the role of furniture testing equipment in the company? What kind of test equipment does the manufacturer or the enterprise needed to check the qualified safety of the products? What kind of test that chairs need to do? Generally detected from the following points: Functional test: (using BIFMA X5.1-2017 as an example) 1. Chair seat impact static pressure test. 2. Chair backrest thrust test. 3. Chair armrest pressure test (10 degree pressure test). 4. Repeat the stress test on the front edge of the chair. 5. The chair arm pulls and pulls down the test. 6. Chair stability test 7. Chair caster fatigue test, etc. Performance evaluation:After passing the above test, evaluates the performance of the chair. Security test: 1. The material of the chair is the same as that on the user's manual or quality assurance. 2. The material of the chair is harmful to the human body. 3. When the chair is worn, there is no possibility of scratching or scraping the user. 4. Is it safe to sit in a chair? for example, when sitting only in the front part of the chair, the chair will not lose its balance and so on. 5. Whether the chair is stable when people sit or step on the chair, ie they do not shake. The above is only a brief list for the aspects of a chair that need to be tested. So, what kind of testing equipment that manufacturers are needed for chair test? Here are the brief description of the specific machine for your reference. Chair Armrest Durability Testing Machine: Tests the strength and durability of the armrests, seats or other components by simulating the load on the seat during daily use. Chair Seating and Back Testing Machine: Test the strength and durability of the seat and backrest by simulating the daily use load of the seat. Caster and Base Durability Testing Machine: For use with casters or chair base seats with casters and castors to assess the ability of the castor, chair frame, or seat to withstand the fatigue stress and the ability to move the chair back and forth. Backrest and tilt mechanism durability testing machine: The first test is to assess the chair's ability to withstand fatigue stress and backrest backrest wear. The second test assesses the ability of the tilt mechanism to withstand repeated fatigue due to fatigue and wear. In this way, companies can detect unqualified products based on testing instruments, analyze quality probl...

In the textile industry, in order to ensure the ultimate quality, some equipment is usually used for inspection, such as whether it will be wear-resistant, etc., among which the prominent pilling problem. GESTER Instrument Equipment Co., Ltd. briefly introduces four kinds of textile pilling test normal method. Pilling box method: It is mostly used for balling test with wool fabric or wool-like fabric.Overview of the method: The sample is mounted on a cork cylinder liners and it is optionally turned in a wooden box with a constant rotational speed and cork lining. In the absence of agreement or regulation, it is recommended that the woolen fabric be turned 7200 rolls (i.e. 2 hours) and the worsted fabric inverted 14400 rolls (i.e. 4 hours). The test completes the visual description of fluffing and/or pilling performance. Instruments used: Pilling Box, ICI Pilling and Snagging Tester GT-C18 Random Tumble Method: Method Overview: Take three specimens from each laboratory unit. Take the specimens evenly spaced across the width of the laboratory sample or from three different panels in a garment. Specimens should be staggered in such a manner that no two specimens contain the same yarns. Avoid areas with wrinkles and other distortions. Using the random tumble-up pilling box was subjected to random tumble friction for 30 minutes in a cylindrical test chamber covered with a cork liner and filled with a small amount of grey short-lived cotton. The visual evaluation of the pilling performance was made under the specified light source conditions. Instrument used: Random Tumble Pilling Testing Equipment GT-C19A Compass track method: Method Overview: According to the prescribed method and test parameters, nylon brushes and fabric abrasives or only fabric abrasives are used to frictionally pill the specimens. Take a circular specimen with a diameter of 113mm and the test surface is mounted outward on the chuck. The grinding table is a test method of two materials. The fabric is rubbed with a nylon brush and tested with a standard fabric. After the test is completed, a visual description of the pilling performance is evaluated under the specified light source conditions.Instrument used: Surface Fuzzing and Pilling Tester GT-C16 Martindale Method: Method Overview: Under the specified pressure, the circular sample rubs against the same fabric or standard wool fabric abrasive with the path of the Lisa Ru graphic, and the sample can rotate freely around a central axis perpendicular to the sample plane. After the prescribed friction stage, ratings are visually described.Instrument used: Martindale Abrasion and Pilling Tester GT-C13B At present, there are four types of conventional pilling and snagging test methods for textiles.If you want to know more, get quotes and catalogues, please contact us：info@gester-instruments.com

With the increasing consumer demand for the appearance and technology of the car, various parts of the car are constantly changing. The car seat is mainly for comfort, the basic structure has not changed much, but the material, function and design are all had great changes. At the same time, the quality requirements of the consumers on the car seats are also increasing, so the quality of the car seats must be ensured at the same time when the car seat technology is improved. The instruments and equipment developed by GESTER Instruments for safety testing of car seats are indispensable instrumentation for ensuring the safe and reliable operation of automobiles. The main test items for car seats: 1.Car seat strength test: Car seat base pressure fatigue test, seat load durable, handrail, headrest fatigue performance test; 2.Car seat back life test: Car seat (including rear seat, single seat) skeleton assembly durability test. A certain amount of force is applied continuously backwards or forwards to make a fatigue test for the seat frame assembly. 3.Realize the static test of the car seat backrest: Tests on static fatigue performance of backrests; tensile fatigue tests on the front and back sides of seat backs; 4.Car sponge cushion performance testing: Falling ball resilience of car seat sponge Car seat sponge thickness and hardness testing Car cushion sponge combustion performance test GESTER specializes in furniture testing equipment. Provides standard testing solutions that can customize the instrument according to standard requirements.

Twenty-one years of hard work, twenty-one years common prosperity, and twenty-one years of fruitful harvests. Since the establishment of the company on April 22, 1997, GESTER has gone through 21-years process of hardships, twists and turns, solidarity, and struggle. The company has experienced entrepreneurial hardship from scratch and from small to large. On the 22nd Apr 2018, GESTER celebrated its 21st birthday. To celebrate GESTER's birthday, we arrived at Harry's Villa to celebrate the day. In the morning: People who like to sing sang for a whole morning in KTV ; mahjong groups played mahjong; playing pool is also a good sport. Noon lunch is hot pot.   In the afternoon, everyone gathered for a conference award and reviewed the achievements of GESTER in the past 21 years. We also played games: “You perform, I guess”, “Beat drum and deliver ball”; In the evening, we sang a birthday song for GESTER and cut the cake. The happy day ended in everyone's laughter. Twenty-one years of sharpening, we went through the wind and rain with a smile. Twenty-one years of struggle, cast our glory in the storm! Looking back on the past, entrepreneurship is not easy; Looking ahead tomorrow, we should know that the front road is still full of hardships. However, we deeply understand that this is an era in which both opportunities and challenges coexist. We must meet both opportunities and challenges. I wish GESTER happy birthday and getting better! Don't forget to why you start - move forward!