Dry and wet colour fastness crock test is mainly used to test the color fastness of textiles, and widely used in the textile industry. Currently, there are different types of wet and dry colour fastness crock in the textile instrument industry. The commonly used color fastness crock tester is electric dry and wet crockmeter and manual dry and wet crockmeter.This article mainly takes the electric dry and wet crockmeter as an example. Scope of Application: The instrument can be used to test the color fastness of colored fabric such as cotton, chemical fiber and blending. Detail of Machine： Crockmeter is used to test color fastness, which may cause color transfer to other surfaces due to friction. The tester gets its name from  "crock", which refers to the transfer of pigment or other substances from the specimen to the dry and wet fabric with rub against each other. The tester includes a base plate and a sample to be tested is fixed on it. Rubbing head can be moved back and forth along the specimen. And rubbing cloth is installed on the test head. The movement of the rubbing head is controlled by crankshaft transmission, and it has a certain load. Dyed fabrics are usually tested using a white standard rubbing cloth. Features of Instrument: Used for dry and wet decolorization test of textile, suitable for regular or periodic test. A.Rubbing head diameter: 16mm; B.Vertical pressure: 9N; C.Electric drive, requiring power supply 220V; D.It is equipped with an electronic counter, which fully simulates the test results of manual friction for 10 times, with high data reproducibility; E.Fixing device with the sample; F.The Fastening rings is made of spring steel clamping, ensuring fast fastening of standard rubbing cloth. 一、The testing of dry colour fastness crock: 1.Put the sand paper on the base of the tester along the length direction of the sample. Then put the test sample on the sand paper; 2.Place the sample holder on the sample to prevent the sample from sliding; 3.Make a square of rubbing cloth to the Rubbing head in the downward direction. The walking direction of the rubbing cloth is parallel to the rubbing direction, and use a special ring is used to cover the rubbing cloth. Note that the ring should not be too low, as this will drag the test specimen. 4.Put the rubbing head down and let it touch the sample. The starting position is to put in front of rubbing head testing route. Shake the handle 10 times back and forth at the speed of one return per second. In this way, the rubbing head will be repeated in the sample 20 times. For the electric crock, set 10 times and start the tester. For other return times, please refer to the requirements. 5.Remove the rubbing cloth, conduct the humidification according to the standard (AATCC) requirements, then contrast the gray scale for staining according to the standard method. For the woollen, fluffing and abrasive samples, once some loose fibers are touched on the rubbing cloth, the rating will be a...

Footwear testing--Test Method for Whole Shoes Flexing Shoes Flexing Tester applies SATRA TM92 standard, is used to test the flexing resistance of finished shoes or shoe sole. Test Purpose: It's used to determine its flexing resistance or indicating the cracks of shoe or shoe sole through reciprocating flexing movements. Test Machine: GT-KA01-2 Whole Shoes Flexing Tester Test Standard: SATRA TM92 Apparatus and Materials: a) Swing metal plate, at a rate of 140 cycles per minute. b) Two artificial foot which are adjustable size & position c) Digital counter, has reset function and can be set as required test cycles. d) Angle adjustment device, can adjust to zero (start position) f) The control panel can be used to control the working status of the instrument and set parameter of counter, including ‘START’ button, ‘STOP’ button, manual button, reset button, preset electronic counter. Test specimen: The sample shall be the completed whole footwear after 48 hours of processing without obvious defects. Either one or both of a pair of completed whole footwear. If possible, store the footwear in a standard controlled environment of 20±2℃ and 65±2%RH for 48hours. Test Condition: Bending angle: 30°, 45°, 50°, 60°, 90°( adjustable) Test speed: 50~150/min Test chamber temperature: 23±2℃ Test Procedure: 1)Adjust the eccentricity to achieve the required angle. 2)Clamp the specimen 3)Adjust the position of the front clamp (press block) and secure it presses in the toe of footwear 4)Reset the counter before testing , pre-set the bending cycles to the specified value and boot device to test 5)Observe the change of the whole shoe after reaching the required number of tests. Test report: At each inspection stage report shall be include the number of cycles flexed, types of failure (if any) and a quantified measure of the failure (if possible). Unsplit is qualified, and split is not qualified. The length of the split is expressed in millimeters, if any. The test results for each pair of shoes are based on visual inspection. If one of them is split, the pair of shoes should be treated according to the split.

GESTER sales team will stay in Chennai for exhibition during 30th January to 3rd February. We will display the most popular items of leather & footwear testing machines at this event. See below list. GT-K03 Single Column Universal Testing Machine GT-KA01-2B Whole Shoes Flexing Tester GT-KC01-1 IULTCS & Veslic Leather Abrasion Tester GT-KC10A-6 Bally Resistance Flexing Tester GT-KB48 Slip Resistance Tester Moreover, the latest model of GT-KB48 Slip Resistance Tester will be exhibited at this time, which was upgraded on the end of 2018. To know more about it, please visit us at:Chennai Trade Center - Booth: Hall 1C, No.1C-07C+07B Hope to see you in Chennai.

Air permeability tester is used for air permeability testing of all flat materials and foam panels. The test range includes paper, airbags, and non-woven fabrics. During the test, the fabric was clamped by the test head and pressed under the clamp arm. When the clamp arm was pressed, the air pump was automatically started, and the instrument was tested according to the set parameters. Specific information as follows: (1)Standards： BS 5636 ，JIS L1096-A，DIN 53887，ASTM D737，ASTM D3574，EN ISO 9237，GB/T 5453，EDANA 140.2，TAPPI T251，EDANA 140.1，ASTM D737，AFNOR G07-111，ISO 7231 (2)Automatic Air Permeability Tester Scope of application: Measuring the permeability of textiles, garments, non-woven fabrics, etc.; the fabric is pressed on the selected test head, the instrument produces a continuous airflow through the specimen, and a certain pressure difference is generated on both sides of the specimen. In a very short time, the system automatically calculates the air permeability of the sample. (3)Technical Parameters: 1.Testing area：5cm2、20cm2、50cm2、100cm2; 2.Testing model: automatic; 3.Testing pressure:10-4000Pa; 4.Airflow:0.1-9999mm/s; 5.Testing time:5-50s; 6.Stop time:3s 7.Total testing time:10-58s; 8.Less pressure:1pa; 9.High pressure:4000pa; 10.Accuracy:±2%; 11.Measuring units: mm/s，cfm，cm3/cm2/s，l/m2/s，l/dm2/min，m3/m2/min and m3/m2/h; 12.Data interface: RS232C, asynchronous, two-way function; 13.The pressure system automatically detects the range and can test large areas of the sample; 14.Powerful suction pump with muffler 15.The instrument can automatically detect the test head area, select the test hole size, and control the fan pumping force; 16.Equipped with calibration test board.

From 13th to 17th, we took part in the INTERMOB Furniture Expo. Chair Assembly Testing Machine, Mattress Roller Tester and Martindale Abrasion and Pilling Tester were displayed on the exhibition. We received customers from over 10 countries, like Turkey, Russia, Iran, Egypt, Romania. GESTER provide different solutions according to different demands of customer. BIFMA & EN1335 standard are the most concerned topic of our furniture testing customers. Welcome to contact us if you also need solutions for these standards. Face to face communication can help us to know more about customers potential demands, Turkey is only a part of our plan, GESTER will visit and provide on-site service to more and more customers. Please do not hesitate to contact us if anything we can do for you.

GESTER’s team went to Istanbul Turkey from 6th to 18th October, 2018. We help Kazlicesme Labs with installing Toy Testing Equipment for EN71-1&2 Standards including GT-M31 Motor Horizontal Brake Performance Tester, GT-M19 Dynamic Strength & 2m/s. Tester, GT-M60 Noise Testing Stand etc,and training related over 60 machines from 8th to 10th. Mr. Hassan, lab manager, speaks highly of our efficiency installation and professional training. As regular customer visit and after-sale service, our sales representative and technician also visited SGS Supervise Gözetme Etüd Kontrol Serv. A.Ş., TÜV Rheinland Uluslararası Standartlar Sertifikasyon ve Denetim A.Ş., TOYSLAB Test Hizmetleri A.Ş.,and AZOLAB Laboratuvar Hizmetleri A.Ş. during this business trip. We summarized our productions and service after visiting and communicating with customer, and very appreciate on customers suggestion.   Face to face communication can help us to know more about customers potential demands, Turkey is only a part of our plan, GESTER will visit and provide on-site service to more and more customers. Please do not hesitate to contact us if anything we can do for you.

The second phase of volunteer activities of Gester         On the 13TH.October , 2018, the members of the GESETR Volunteer Association, led by the General Manager Ms. Hua, go to the Ba Xian Zhuo School to show their love. This activity is mainly to help the children from migrant workers’families, disadvantaged families and the left-behind children to get more more care. The GESETR Volunteers Association donates books of brand new, stationeries, insulated mugs, and etc. During the period, Ms. Hua and her team plays games with the children and teaches them to sing a English song and have an in-depth understanding of the situation of their learning and current life. Mr. Hua said, ‘we will organize our company employees to teach babies to learn English regularly, and will take the volunteer association as corporate culture passed on. Hope to improve the moral accomplishments of staff’. Every Child was enjoyed the time with us, and make a sachet for Mrs. Hua as a souvenir.  

In daily life, people would find that the sole and upper of newly white shoes would become yellowing. Do you know why it would yellowing? That’s because the phenomenon of color yellowing of footwear materials like PU polyurethane, UV-free antioxidant TPR thermoplastic rubber, and leather coated with polymer materials are likely to occur under exposuring to sunlight, ultraviolet light for a long time or in the heat, oxygen, stress, trace moisture, improper processing. Reducing and prolonging the yellowing time has always been an urgent problem to be solved. Many shoe-making enterprises refer to HG/T 3689-2014 "Shoes for yellowing resistance test method" to determine the yellowing resistance of finished shoes and footwear materials. And the test of yellowing resistance has also become an important test for the quality management of the footwear industry. What can we do in daily life to delay the yellowing of light-colored shoes? The following methods are for reference only, and take care that do not to expose the shoes to the sun or to expose them to high temperatures. A.Maintenance during washing It is best to choose neutral detergent (soap with a pH value between 6 and 8, liquid detergent, etc.), do not choose ordinary alkaline detergent. White shoes are better avoided being washed with water, and handled in time when shoes are a little dirty, so as to clean them up and prevent damage to the upper caused by long-term stains. When drying after washing, better to use paper towel to wrap, it can prevent white shoes to become yellow and even let white shoes go back to the original color. Do not exposed to the sun. Ultraviolet light is the main cause of rapid yellowing. B.Collection maintenance The white shoe that does not wear temporarily, better clean thoroughly before collect, prevent dirty mark to remain for a long time to produce mildew possibility. When collecting, choose dry place to store, better to put away in originally shoe box. In order to protect the shape of the white shoes, it can also be inserted into the shoe last or the old newspaper to fix, it will be taken out as new. A little desiccant can be put into the shoe box to anti-worms and keep dry. Choose the shoes which are hard to discolor will let white shoes to maintain the beautiful white color all the time. How to know if a pair of shoes will turn yellow in a short time? Please choose GESTER GT-KD02 UV Light Discoloration Tester to test for you. GESTER UV (ultraviolet) Light Discoloration Tester GT-KD02 designed to assess the resistance to discoloration of shoe materials. Specifically developed for white and light-colored upper materials, sole materials, leather, PU, fabric, and more, this tester is indispensable for evaluating the durability and color retention of footwear. With the ability to replicate the damaging effects of sunlight radiation and high temperatures experienced during transportation, this innovative machine aids in identifying potential defects in shoe products. ...