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  • Textile color fastness test items
    Textile color fastness test items March 23, 2021
    Color fastness is also called color fastness and dyeing fastness. It refers to the resistance of the color of textiles to various effects during processing and use. The fastness grade is evaluated according to the discoloration of the sample and the staining of the undyed lining fabric. Textile color fastness test is a routine test item in the internal quality test of textiles. During its use, textiles will be exposed to various external effects such as light, washing, ironing, perspiration, friction and chemical agents. Some printed and dyed textiles are also subjected to special finishing processes, such as resin finishing, flame retardant finishing, sand washing, and grinding. This requires the color of printed and dyed textiles to maintain a certain degree of fastness. Color fastness test items Washing color fastness: The sample is sewn together with the standard lining fabric, washed, washed and dried, and washed under suitable temperature, alkalinity, bleaching and friction conditions, so that the test results can be obtained in a short time .Use machine: color fastness to washing GT-D07 Color fastness to dry cleaning: Same as color fastness to washing, except that washing is changed to dry cleaning.Use GESTER machine:Dry Cleaning And Washing Cylinder GT-C36 Color fastness to rubbing: Put the sample on the rubbing fastness meter, rub it with a standard white cloth under a certain pressure for a certain number of times. Each group of samples needs to be dry rubbing color fastness and wet rubbing color fastness. The color stained on the standard rubbing white cloth is graded with a gray card, and the grade obtained is the measured rubbing color fastness. The color fastness to rubbing needs to be tested for dry rubbing and wet rubbing. All the colors on the sample must be rubbed. Use machine: Electronic Crockmeter GT-D04 Light fastness: Textiles are usually exposed to light when they are in use. Light can destroy dyes and cause the well-known "fading", which makes colored textiles lighter and darker, and some color changes will also occur. , It is necessary to test the color fastness. The light fastness test is to put the sample and blue wool standard cloth of different fastness grades together under the specified conditions for sunlight exposure, and the sample and the blue wool The cloth is compared to evaluate the light fastness. The higher the blue wool standard cloth, the better the light fastness. Use machine: Air-Cooled Light Fastness Tester GT-D02A-1 Color fastness to perspiration: sew the sample together with the standard lining fabric, put it in a sweat solution, and place it on the perspiration fastness tester, put it in an oven at a constant temperature, then dry, and grade it with a gray card. Get the test results. Different test methods have different perspiration liquid ratios, different sample sizes, and different test temperatures and times. Use GESTER machine:Perspiration Tester GT-D09 Color fastness to water stains: Test as ...
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  • Baby Trolley Handle Durability Tester Test method
    Baby Trolley Handle Durability Tester Test method March 09, 2021
    This Stroller Handle Tester is suitable for baby trolley simulation over the barrier when the lifting and under the action of the durability test, Baby Stroller Handle Durability Tester satndards: EN 1888-2012 Section 8.10.6.2.2, 8.10.6.2.3; GB14748-2006 Section 5.12 Baby Trolley Handle Durability Tester Test method: 1. First place the weight in the baby trollley and firmly fixed it in the seat. 2.After power on, adjust the position of armrest clamp by manual, and then place the baby trolley on the test platform, fix the armrest with the clamp, so that the baby trolley can be on the test platform stably. 3.In the manual interface, pre-pressed  the armrest to measure the height of the front wheel under a certain force value. 4.Then select A/B mode to test according to the test requirements.
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  • Comparison of mask filtration performance standards
    Comparison of mask filtration performance standards January 29, 2021
    As we all know, an important transmission route of the new coronavirus is aerosol transmission. Therefore, when people choose masks, they should not only pay attention to the filtration efficiency of BFE, but also the filtration performance of PFE, which directly determines the protective performance of the entire mask. General international standards for masks 1.American Standard NIOSH 42 -84 "NIOSH Guide to the Selection and Use of Particulate Respirators" Issued by NIOSH (National Institute of Occupational Safety and Health), it is the technical regulations of the CFR of the United States Federal Regulations. The relevant standards (or parts of the chapters) and relevant guidelines (or parts of the chapters) specified in the CFR become the mandatory technical specifications of the United States. 2.Japanese standard JIS T 8151: 2018 "Particulate respirators" JIST8151: 2018 is the Japanese national standard, issued by the Japanese Industrial Standards Committee (JISC). 3.Australia and New Zealand standards AS/NZS 1716-2012 《Respiratory protective devices》 This standard is a national standard used by Australia and New Zealand. International standards for medical masks The main function of medical masks is to filter particles in the air, blocking droplets, blood, body fluids, secretion droplets, etc. The key technical indicators that play a protective performance in medical masks are the filtration efficiency of particulates and bacteria, and blood penetration resistance. 1.European standards EN 14683-2019 "Medical face masks-Requirements and test methods" This standard is a European standard, formulated and issued by the European Committee for Standardization CEN, and implemented in 34 EU countries. The standard itself is not mandatory, but it may be subject to the laws of EU countries The citation of regulations becomes the technical regulations (mandatory standards) within each country. 2.American Standard ASTM F2100-2019 "Standard Specification for Performance of Materials Used in Medical Face Masks" is a standard of the American Society for Testing and Materials. The association has a history of 120 years. More than 12,500 members from more than 140 countries and more than 30,000 participated A number of ASTM standards, ASTM standards are widely used all over the world, becoming the de facto "international standards" in various industries. GESTER Mask Testing Equipment: BFE testing machine - Mask Bacterial Filtration Efficiency Tester PFE tester - Particulate Filtration Efficiency Tester
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  • GESTER wish you a Merry Christmas
    GESTER wish you a Merry Christmas December 25, 2020
    On this Christmas day, in order to enrich the company culture, improve team cohesion, and enhance employee feelings and cooperation; the personnel department organizes everyone to play games, dance bunny dances, step on balloons, and order afternoon tea drinks for everyone to invigorate the team atmosphere. GESTER Wishing you a blessed Christmas and a New Year filled with happy surprises.
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  • What are the ISTA test items in packaging and transportation
    What are the ISTA test items in packaging and transportation December 09, 2020
    ISTA test: The purpose and significance of packaging testing is to improve the reliability of the packaging goods, so that we can know whether the packaging of the product can achieve the expected effect or not. The testing includes many aspects. There are different international regulatory agencies and regulatory standards for packaging and transportation testing (ISTA), box structure, paper quality, environmental protection (hazardous substances, recycling) and other aspects. ISTA test items Series I: Do not simulate transportation tests at all, including ISTA1A,1B,1C,1D,1E,1G,1H Series II: Partial simulated transportation test, including Series III : fully simulated transport test, including ISTA3A ,3E,3F,3H The test items include environmental pretreatment, pressure, drop, constant frequency vibration, stacking vibration, random vibration, horizontal extrusion, rotating drop, etc. ISTA Corresponding testing instruments for testing items Transportation Vibration Tester Drop & Falling Tester Box Compression Tester Incline Impact Tester ISTA Related other packaging testing instruments Bursting Strength Tester Crush Tester Packing Clamping Force Tester GESTER Instruments specializes in R&D, production, sales and after-sales services of packaging testing equipment and packaging transportation testing equipment.If you have any interest or question, please contact email address is :sales@gester-instruments.com
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  • What are the paper and packaging testing instruments
    What are the paper and packaging testing instruments November 28, 2020
    The paper packaging and transportation test is designed to protect the product from reaching its destination safely. In fact, packaging, transportation, distribution and packaging processing is a huge and complex process, and the quantity is huge and different. The simulation test in the laboratory will be a simple, fast, effective and low-cost method to evaluate the performance of the packaging protection design in actual use conditions. The tested paper packaging can ensure that it meets the indicators of various countries for its stability, environmental protection, and recycling. So what are our common Paper And Packaging Material Testing Instruments? Crush Tester Machine For Corrugated Boxes GT-N09 Crush Tester Machine is well-designed using modern mechanical design theory and human engineering design criteria and micro-process. Edge crush test machine standards: ISO 3035, ISO 3037, ISO 7263, TAPPI-T472, TAPPI 811, TAPPI T838, JIS-P8126, GB/T 2679.8, GB/T 6546, GB/T 6548, GB/T 2679.6 Four-column Carton Compression Tester (computer control) GT-N02D Box compression tester is used to determine the cargo capacity and stacking height of the carton. Corrugated Box Testing Equipment is suitable for the compression and holding test of various packages and cartons. Capacity:0-10KN, 20KN, 30KN, 50KN. 70KN, 100KN (Optional) Automatic Bursting Strength Tester (High-pressure) GT-N29C Bursting Strength Tester Perfect for carton, paperboard, corrugated board, cigarette packet, beer case, shoebox, milk carton, plastic hollow plate, leather, fabric, high strength aluminum foil and copper foil. Bursting strength tester of corrugated box standards: ISO2759, GB/T 1539, GB/T 6545, TAPPI T810, JIS P8131, TAPPI T807 Incline Impact Tester GT-N49 Incline Impact Tester test the ability of product against impact damage in the real environment, such as handling, stacking of shelves, sliding motor, loading and unloading of locomotives, transportation of products, etc. Packaging Incline Impact Testing Standards: ASTM D880, ISTA Package Carton Single Wing Falling Tester GT-LC05-1 The Single Wing Falling Tester is designed to test the damage of product packaging and to evaluate the impact resistance during transport. Carton Drop Test Machine Standards: ISO 2248, JIS Z0202, GB / T4857.5, ISTA
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  • Operation method of Child Vehicle Rotation Tester
    Operation method of Child Vehicle Rotation Tester November 18, 2020
    The baby stroller rotation tester is used to measure the locking strength and durability of the connection device of the test object after the stroller is tilted at a certain angle under a certain restraint weight. Baby Stroller Rotation Testing Machine Feature: 1.The test platform with wheel axle fixing device. 2.The test platform can rotate clockwise and counter clockwise. 3.Automatic judgment of specimen damage, automatic stop working. 4.Programmable control rotation angle, test frequency, cycle test, spacing interval 5.Can autosave when interruption of power supply, can choose to stop or continue to work 6.High precision angle sensor, can display table angle in real time. Baby Stroller Testing Machine Rotating Test Satndards: EN 1888-2012 Section8.1.3.2.1 ,8.10.2, GB 14748-2006 Section 5.15 The operation method of the GESTER Child Vehicle Rotating Tester: 1.Put the weight on the seat of vehicles and fix it with the rope, so the weight won’t fall down during the test. 2.Turn on the power supply, lower the rotate platform to the lowest position at manual interface. Put the vehicle on the platform and fix the vehicle by rope too. 3.Lift the vehicle to the highest position, and start the test according to different test mode.
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  • Commonly used equipment for leather physical testing (二)
    Commonly used equipment for leather physical testing (二) October 29, 2020
    Leather physical testing mainly includes: tensile strength, elongation, tear strength, composite peel strength, abrasion resistance, folding fastness, color fastness (the color also includes dry rub resistance, wet rub resistance, Sweat resistance, heat resistance, water fastness, washing resistance, stain resistance, etc.), air permeability, water permeability, dynamic water resistance, softness, horizontal flammability, atomization, odor, etc. Related Leather testing machine commonly used is described as follows: 7. The Shoe Upper Material Flexing Tester uses continuous reciprocating stretch fast action to simulate the squeezing, stretching and bending of the upper during walking after the shoe is worn. After the test, check the lens wrinkles, creases or damage, as a reference basis for selecting shoe upper materials. 8. The leather breathability tester (GESTER Water Vapor Permeability Tester GT-KC21) is used to test the ability of the upper and the upper shoe material, including the leather surface and lining, to resist water vapor penetration. In order to be able to comply with various test specifications, the test needs to be carried out in an environment with a temperature of 20°C and a relative humidity of 65﹪hr. 9. The leather cracking tester (GESTER Leather Digital Lastometer GT-KC37A) is used to test the anti-cracking index of leather surface leather and various thin leathers, etc. After the test piece is fixed, the contact surface of different sizes is used to make the leather top up from the inner surface at a speed of about 12mm per minute. When the leather surface has cracks, the height value is the crack elongation value after comparison. 10. The IULTCS & Veslic Leather Abrasion Tester is used for all kinds of leather, shoe uppers and inner shirt leather to be damaged and decolorized after friction. The test method is to wrap the friction hammer with dry or wet white wool felt under the specified pressure Rub the test piece on the test bench back and forth, and observe the degree of discoloration or damage after the test. 11. Leather rubbing resistance testing machine is used to test the rubbing resistance of leather, artificial leather, rubber, cloth and other materials. The load can be adjusted to the distance between the test piece, the fixture and the reciprocating distance, and the distance between the fixtures can be gradually reduced. After lightly touching the cloth surface of the two samples, apply a load. After a certain frequency and under the specified stroke conditions, observe whether there are cracks, damage or separation of the cloth base and the coating on the surface of the sample after 1000 times to determine the product's performance quality. 12.The Leather Shrinkage Temperature Tester is suitable for any kind of leather whose shrinkage temperature is below the boiling point of water. The test principle is to put the test piece in water and slowly heat it until the test piece suddenly shrinks. Record the tem...
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