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目前显示的是 八月, 2019的博文

Fogging Tester For Automotive Vehicle Interiors

Fogging tests measure the tendency for plastic or elastomeric materials to volatize substances which can condense and collect on other surfaces when in use. These tests provide 2 methods for evaluating the likelihood of a material to leave a light scattering film on a glass surface (photometric method), or to deposit foreign material onto an aluminum foil surface (gravimetric method). The tests are used to evaluate materials to be used in automotive or other vehicle interiors.  Qinsun Fogging Tester is an equipment for determination of windscreen fogging in vehicles according to ISO 6452, SAE J1756 and other automotive standards. It has integrated heating bath and cooling bath, and complete accessories according to various automotive standards can be supplied. Fogging Test equipment  is developed to test the fogging characteristics of all the materials utilized in the interior of a vehicle, including the amount of volatile components evaporated from textiles, leather, P...

Hexapod Tumbler Carpet appearance tester For Carpet Manufacturers

A carpet is a textile floor covering typically consisting of an upper layer of pile attached to a backing. The pile was traditionally made from wool, but since the 20th century, synthetic fibers such as polypropylene, nylon or polyester are often used, as these fibers are less expensive than wool. Today most carpets are manufactured with synthetic yarns. Synthetic yarns are nearly impossible to “wear out” when wear is based on the standards set forth in the warranties of most every carpet and yarn manufacturer. Manufacturers wear warranties for the most part protect the manufacturer and not the consumer.  These warranties will usually only cover abrasive wear with most of them calling for a number such as a 10% loss of fiber as a result of “abrasive wear.” Abrasive wear caused by foot traffic.   The warranty will probably say something like this, “This carpet will not experience fiber Loss from Abrasive Wear Caused by Foot Traffic (as hereinafter defined) by more than 10...

Determination of air permeability of a fabric-air permeability tester

Fabric air permeability is a measure to what extent it gives air passing through the fabric. Air permeability, a given area in the vertical direction of the air flow rate, a given time period, is measured by the fabric test area inside the pressure difference of the fabric. Basically, it depends on weight, thickness and porosity of fabric. The porosity of fabric is the demonstration of the air gap as a percentage within fabric. It has been important for especially the tent fabric, parachute fabric, raincoat fabric and garment, the fabric used in air bags, industrial filters and sail cloth. Moreover, when thermal properties of clothing and body interaction are taken into consideration, there has been the effect of air permeability. there is an instrument which is designed to test the air permeability of fabric on the market .it is air permeability tester . Air permeability is an important feature of fabrics (Sundaramoorthy et al., 2011) and is one of the main factors affecting the t...

The Pendulum Method Tearing Strength Test

The tear resistance test on fabrics or tear strength is measured to check how the material can withstand the effects of tearing or cuts when in tension. The tear strength is measured as per the ASTM D412 standard test method, which is also used to measure tensile and elongation.  The pendulum method (elmendorf test) is similar to the tongue tearing method and is in the family of fast tear strength test methods. The elmendorf tear test is commonly used. It can bet used for woven fabrics and also other fabrics that are produced with similar technology. However, this method can not be used for woven elastic fabrics, knitted fabrics, or any fabric that has the possibility of tearing transfer and has a great difference on weft and warp.    Instrument and Material Pendulum fabric tear strength tester , steel ruler, scissors, a few pieces of fabric, etc. Sample preparation The sample is cut randomly in at least 3m from cloth edge, the length of which is no less than 1...

Melt Flow Index Testing Procedure

Melt flow rate is an indirect measure of molecular weight, with high melt flow rate corresponding to low molecular weight. At the same time, melt flow rate is a measure of the ability of the material's melt to flow under pressure. The machine which is designed to test MFR is   Melt Flow Indexer(MFI) . Melt flow rate is inversely proportional to viscosity of the melt at the conditions of the test, though it should be borne in mind that the viscosity for any such material depends on the applied force. Ratios between two melt flow rate values for one material at different gravimetric weights are often used as a measure for the broadness of the molecular weight distribution. ISO 1133  specifies two procedures for the determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastic materials under specified conditions of temperature and load. One is a mass-measurement method. The other is a displacement-measurement method. Normally, the test co...

Powerful Advantages Of Qinsun Pneumatic Bursting Tester

Pneumatic Bursting Tester is widely used in textile , leather , paper and other fields. The bursting strength and height of woven, knitted, non-woven fabric, paper or board are measured by air pressure drum. It is the basic equipment for testing physical strength and strength of materials. Easy to use , high degree of automation G229P pneumatic expansion tester through intelligent control algorithm to accurately control the burst time, with manual and automatic two control methods;  Real time testing-curve, is shown on the Bursting software. The machine can also be controlled easily by the graphics touch-screen without computer. Touch screen control software , simple operation. The test results can be stored, analyzed and printed; The range of instrument pressure is large, which is suitable for various materials to meet the requirements of bursting strength test. ------------------------------------------------------------------- For more information about our testing ...

Hydrostatic head test by using Hydrostatic Head Tester

The Hydrostatic head test by using Hydrostatic Head Tester  evaluates a material’s resistance to water penetration. The test sample cut into 100mm × 100mm size , and then put the sample into the fixture, tighten the fixture fixed.  Press the up button, the metal container containing 700ml of water starts to rise at the same speed as the motor. The water pressure is increased by the specimen in the fixture. The color of the paper is measured by the plastic window covering the filter paper penetration.  When the initial signal indicating the change of the color of the paper (from blue to pink) appears, the height of the scale should be readed immediately, expressed in Pa (mmH20), and press the rising button again to stop the metal container from rising. Record the reading as test data for the impermeability of the filter paper. Open the fixture, remove the sample and indicator paper, wipe the fixture with a soft cloth, check the waterlevel in the fixture. If nec...

Key Features Of Multi finger scratch mar tester

Multi finger scratch mar tester has been designed to evaluate the relative susceptibility or resistance of a material surface to physical damages, such as scratching, scraping, gouging, marring, engraving, etc. The instrument can also be used to determine plastics and is generally referred to as a five-finger scratch & mar tester . The Multi-Finger Scratch/Mar Tester features a pneumatically driven, moveable platform on which the test specimen is placed. A control knob is used to operate the platform for single or multiple pass testing. An electronic timer shows the speed rate, which can be controlled by increasing or reducing air pressure. Key Features of  Multi finger scratch mar tester The multi finger scratch test apparatus consists of the drive motor mechanism, scraping component, the sample holder fixing devices and other components. The scraper assembly includes a bracket scratch; scraping means scrape the specified bit sets, pressurizing means (weights and weigh...

Working Procedure of Perspiration tester

   Perspiration is on everything we touch or comes in contact with our bodies. It can react with certain materials and trigger allergies or shorten product service life. While the mechanics of perspirations tests have been specified since 1947, there is no consensus for an artificial perspiration mixture that will successfully mimic natural human eccrine perspiration.     Perspiration tester determines colorfastness of textiles to human perspiration. The KFG-2041 Perspiration Tester consists of two stainless steel frames. Each frame be loaded with up to 20 samples of 10 x 4 cm between the supplied acrylic separator plates. Loading weights for AATCC TM 15/106/107 and ISO 105 E01/2/4 are included. Working Procedure :   Thoroughly wet one composite sample in a solution of PH8.0 at the liquor ratio of 20:1 and allow it to remain in this solution at room temperature for 30min. pour off the solution and place the composite sample between two glas...

PILLING TEST BY MARTINDALE ABRASION TESTER

Pilling is a fabric surface characterized by little pills of entangled fiber clinging to the cloth surface and giving the garment unsightly appearance. The pills are formed during wear and washing by the entanglement of loose fibers which protrude from the fabric surface. Under the influence of the rubbing action these loose fibers develop into small spherical bundles anchored to the fabric by a few unbroken fibers. So, how can I test the Pilling? Martindale abrasion tester may be used for pilling test of any fabric. The normal samples holders are replaced with light weight square holders, which are keyed so that they may have vertical movement but cannot turn on their axes. The Martindale tester is a versatile instrument capable of multiple abrasion and pilling tests.It uses precision components to deliver the exact abrasion or pilling movement required by all international and retailer standards. The pilling test steps by Martindale abrasion and pilling tester 1、The spec...

The Benefits Abrasion Testing brings

The main reason that companies conduct abrasion tests is to make sure that they are producing a quality product, which is defect-free, has consistent quality and features and endures throughout its life cycle.  Abrasion Testing also offers an opportunity to create value with the product and it can be invaluable in solving warranty related issues. Beginning with the product concept and design phase test procedures can be used to do product research and development in order to evaluate available options. Alternatively, specifications can be established that must be met with quality assurance testing. On material selection, pre-production testing and incoming inspections can be done as an initial step in quality control. Product testing must be conducted during or after the manufacturing process to make sure the product meets specifications before shipment. Finally consumer feedback can be monitored and product returns evaluated to make sure testing specifications meet their o...

ASTM D4966-Test Method For Abrasion Resistance of Textile Fabrics

The ASTM D4966-98 is a test method of the American Society of Testing and Materials (ASTM). This is an Martindale Abrasion Tester Test Method. Fabric samples are mounted flat and rubbed in a figure eight like motion using a piece of worsted wool cloth as the abradant.  The Martindale method, also known as the Martindale rub test, simulates natural wear of a seat cover, where the textile sample is rubbed against a standard abrasive surface with a specified force. The test equipment works in intervals of 5000 cycles, totalling the wear number (unit: Martindale) of abrasion cycles that leads to the material being worn to a specified degree. The higher the value, the more resistant the material is to abrasion. The number of cycles that the fabric can endure before fabric shows objectionable change in appearance  is counted. Number of cycles determines abrasion rating.Laboratory tests may be reliable as an indication of relative end-use performance in cases where the differenc...