Tensile Testing Machines widely popular in Textile Testing Industry

Tensile Testing Machines widely popular in Textile Testing Industry

We are manufacturing and supplying high precision Tensile Testing Machines that are used for determining tensile strength and elongation of textile, rubber, plastic, cables and conductors, leather, asbestos, paper, plywood, metal and other material. We are pioneer in the manufacturing of tensile testing machine in China, which is used for accurate testing results. The range includes :
Computerized Universal Testing Machine with Hydraulic Straining Unit
Micro Processor based version is also available
1) Facility to have multiple numbers of load cells thus giving wide range of coverage with better accuracy at higher and lower load ranges with minimum resolutions (least count).
2) Special facility for mounting additional load cells as a result of which there is no need to change either load cells or grips on the machine.
3) Speed of the machine can be regulated through computerized systems.
4) Unlimited storage facility of records files with an option of custom built software which can be supplied at extra cost.
Tensile Strength Testing Machine, Tensile Testers are electrically operated machines capable of determining tensile strength and elongation of Textile, Rubber, Plastic, Cables and Conductors, Leather, Asbestos, Paper, Plywood, Metal, and other materials.
Facility to have multiple numbers of load cells thus giving wide range of coverage with better accuracy at higher and lower load ranges with minimum resolutions (least count).
Special facility for mounting additional load cells as a result of which there is no need to change either load cells or grips on the machine.
Speed of the machine can be regulated through computerized systems.
Unlimited storage facility of records files with an option of custom built software which can be supplied at extra cost
 

Tensile Testing of Textile Materials

Tensile Testing of Textile Materials
 
Tensile testing of textiles provides the strength and elongation properties for both natural and manmade materials, such as cotton, carbon, polyester, nylon, glass and graphite. Textiles can be tensile tested in many forms, including single strands, yarns, webbing, woven, braided material and nonwoven fabrics. The majority of textile fabric tensile testing is performed as either a grab test, in an effort to eliminate edge effects, or a strip test, including edge effects. For a grab test, the grips clamp a fabric sample in the center using jaws smaller than the sample width. For a strip test, the grips clamp a strip of fabric using jaws wider than the sample width. For both tests, grip the specimen inside the ends of the sample length. Machines for textile tensile testing are typically low force, high elongation, constant rate of elongation or load and are table-top systems. Although the testing machine may seem like the most important factor for testing with flexible materials, it is essential to consider the movement of grips and clamping fixtures. When testing webbing or fabric-type products, it is important to have free rotation at one of the grip mounts to ensure the grips are in the plane of the textile during the test. Test grips and fixtures must be determined by the specific type of textile being tested and, if the material is tested to a testing standard, the grip requirements will be described in the standard. ASTM and ISO specify test methods and requirements for the testing of textile materials. Due to the wide variety of textile materials, a single tensile test method would not be able to address all the variations needed to properly test different textiles. Popular ASTM tensile testing standards for textiles are ASTM D751 for coated fabrics, ASTM D1683 for woven fabric seam failure, ASTM D4964 for elongation of elastic fabrics, ASTM D5034 for breaking strength of textile fabrics, ASTM D5035 for breaking force of textile fabrics, ASTM D6775 for breaking strength of webbing and braided materials, and ASTM D7269 for testing aramid or nylon yarns. ASTM D76 specifies the requirements of the most widely used textile tensile test machines, including constant rate of extension (CRE) and constant rate of force or loading (CRL) machines. Our applications engineers are available for all your textile testing questions. Contact us or call at 800.430.6536.
Quality: Quality is the attribute of the products that determines its fitness for use, or according to Japanese Standard (JIS), textile (fibre, polymer, yarn, fabric) quality is all specific properties and performance of a textile product or service that can be evaluated to determine whether a product or services satisfactorily meets the purposes of its uses.
Modern Fibre or Polymer Quality Testing Equipment:
Fibre characteristics must be classified according to a certain sequence of importance with respect to the end product and the spinning process. Moreover, such quantified characteristics must also be assessed with reference to the following
• What is the ideal value?
• What amount of variation is acceptable in the bale material?
• What amount of variation is acceptable in the final blend?
 
Textile fibre contains some basic characteristics. 
Following are the basic characteristics of cotton fibre
• Fiber length
• Fineness
• Strength
• Maturity
• Rigidity
• Fiber friction
• Structural features

Technical Tests for Fiber Identification

Technical Tests for Fiber Identification

Technical Tests for Fiber Identification
 
Fiber Analysis: Qualitative
Scope: Describe physical, chemical, and microscopical techniques for identifying fibers in raw form or taken from yarn or fabrics.

• Fiber specimens are subjected to a variety of selected tests to determine generic class or specific type
• Visual and microscopical examination
• Burning test
• Solubility
• Stain Tests

 
Technical Tests for Fiber Identification

There are two types of methods that are used for identifying different fibers - the nontechnical tests and the technical tests. The nontechnical tests include the feeling test and the burn test. The technical tests include microscope test and chemical test. The technical tests for fiber identification are carried out in laboratories and require technical knowledge and skills. As such, they are much more reliable methods for testing end product as compared to the non technical tests.
 
Natural fibers have their own peculiar structures, spots, lines and other marks that help in identifying them. Following are some examples of natural fibers and how they look like under a microscope: 

Cotton: The cotton fiber is a single elongated cell. Under a microscope, it looks like flat, spirally twisted ribbonlike tube with rough granular surface. However, mercerized cotton doesn't have natural twist. The finishing process makes them swollen, straight, smooth and round with a shining surface.

Linen: Linen fiber, under a microscope, looks like having multiple sided cylindrical filaments with fine pointed edges. The filaments show nodes at intervals. It, in fact, looks like a bamboo stick having joints that results into a little unevenness.

Wool: Wool fiber has irregular, roughly cylindrical, multi cellular structure with tapered ends. Under a microscope, three basic layers are shown- epidermis (outer layer), cortex (middle layer) and medulla (inner layer). Medulla is seen only in coarse and medium wool fibers and that too under a highly powerful microscope. 

Silk: Raw silk fiber, composed of two filaments, has elliptical shape under the microscope. The two fine and lustrous filaments are shown clearly looking like transparent rods with triangular shape. Wild silk or tussah fiber has different appearance than the cultivated silk. It is flattened, coarse, thick and broader fiber having fine, wavy lines all across its surface whereas cultivated silk is narrower fiber with no marks on it.

Working Procedure of Fabric Thickness Tester

Fabric Thickness Tester 
Determination of thickness of fabric samples in laboratory is usually carried out with the help of a precision thickness gauge. In this equipment, the fabric whose thickness is to be determined is kept on a flat anvil and a circular pressure foot is pressed on to it from the top under a standard fixed load. The Dial Indicator directly gives the Thickness in mm.

Details of the Main Unit of Fabric Thickness Tester 

 

1. Anvil. 
2. Circular Pressure Foot (Dia. 10 mm). 
3. Zero Setting Dial Gauge (Bezel). 
4. Knob for zero setting of the Dial Gauge. 
5. Dead Weight (As Per Standards). 
6. Lifting Lever. 
7. Grub Screw for Calibration. 
8. Circular Pressure Foot (Dia. 25 mm).

Feature of Fabric Thickness Tester 
Specialized equipment to determine the thickness of fabrics.
Latest model with modern aesthetics.
Maximum capacity 10mm & accuracy 0. 01mm.
Portable & handy to carry anywhere.
Smooth precision-engineered components for accurate results.
Analog dial for measuring thickness in millimeters.
Supplied with two pressure feet of different size for different type of fabrics.
A standard Dead weight is provided with the instruments for accurate result.
Supplied with calibration & inspection certificates.
Specification of Fabric Thickness Tester:
Range of measurement : 0 - 10 mm
Least count of dial gauge : 0.01 mm
Diameter of anvil : 60 mm
Diameter of pressure foot (Interchangeable) : 10 mm & 25 mm
Load on pressure foot : 78.5 g (100g/sq. cm)
Throat depth : 22 mm
Overall Dimensions of the Instrument : 115 (L) x 185 (W) x 180 (H) mm 4.5” (L) x 7.5” (W) x 7” (H) Inch
Net Weight of the Instrument : 1.9 Kg. (4.18 lbs) 
Working Procedure of Fabric Thickness Tester
The fabric sample that is to be measured is kept on an anvil.
The press foot is gently lowered on to the specimen.
The reading is taken to get the thickness of the specimen.
The flat circular indenter of the micrometer exerts the specified pressure on the fabric sample.
The above procedure is repeated to obtain the values of thickness at least at 3 different locations.
The mean value of all the readings of thickness determined to the nearest 0.01m is calculated and the result is the average thickness of the sample under test. 

Abrasion Resistance Color Fastness Tester Application

Abrasion Resistance Color Fastness Tester

Abrasion Resistance Color Fastness Tester usage

• Japanese standards JIS color fastness friction instrument, mainly used in the evaluation and decision dyed fiber products rubbing fastness.
• With dry or wet white cotton tied on the head surface friction of the machine to some of the load and the number of post-friction colored specimen in the control of gray scale to assess the dyeing friction fastness level. Friction test can also be used as organic solvent.

Abrasion Resistance Color Fastness Tester Short Description

• The machine is based on Japanese Industrial Standards [color fastness Test Method] in " Abrasion Resistance Color Fastness fastness test method" (JIS L 0849) prescribed friction tester Ⅱ-shaped (learn mode shapes) as a standard testing machine.
• Mainly used for evaluation and decision dyed fiber products abrasion resistance color fastness, abrasion tester is applicable to a variety of material.

welcome learn more on  Qinsun Instruments Co., LTD website.

• Abrasion Resistance Color Fastness Tester mainly used for evaluation and decision dyed fiber products abrasion resistance color fastness, abrasion tester is applicable to a variety of material.

Alcohol pencil Eraser Abrasion Tester

Alcohol pencil eraser Abrasion Tester

The test machine consistent with UL817 and other relevant standards "special rubber fixed to the machine friction rub hammer surface to a certain load and frequency requirements for safe use of the provisions" applicable to manufacturers and quality control departments for mobile phones, keyboards and other accessories surface resistance grinding test, to assess its degree of wear. 

 Alcohol pencil eraser Abrasion Tester adopts variable convex shaft structure, the Japanese origin of ball drive to make it work with the servo motor can make about duplex movement, and has an adjustable test speed and functionality of stroke (without shutdown), adjustment is very easy. Test speed can be displayed, and set the number of trials; to achieve a variety of products for injection surfaces, such as silk screen printed for abrasion life test, the friction medium: eraser, cotton and so on. 

 Alcohol pencil eraser Abrasion Tester is widely used in plastic, wire, electrical appliances, leather and other manufacturing industries.

  Alcohol pencil eraser Abrasion Tester applies to all types of plastic injection products, silk screen, printing, painting, plating surface for abrasion tests, such as: computers, mobile phones, cameras, MP3, CD / VCD / DVD, cordless phones, electronic dictionaries, household appliances, etc.

Qinsun Instruments Co., LTD

More RCA Abrasion Wear Tester widely used in Textile Testing Industry

More RCA Abrasion Wear Tester widely used in Textile Testing Industry

The RCA Abrasion Wear Tester is used to test surfaces for resistance to abrasion and wear. Typically used on painted or plated organic finishes, foil, and inked key pad lettering. This tester is widely used as a standard for many silicone key pad and membrane switch manufacturers. This abrader is used as a standard to the auto, appliance, cell phone, plastics, and coating industries. It uses an inexpensive roll of throw away abrasion paper. All build-up error is eliminated and consistent readings are easily obtained.

The RCA Abrasion Wear Tester is also referred to as an Abrasive Wear Tester, an Abrader, a Paper Wear Tester, etc. The Norman Tool official model identifier for this machine is the 7-IBB-CC RCA Wear Tester.

• Easy set-up and operation
• Automatic shut-off
• Repeatable and consistent results
• 3 load settings
• Abrasion Debris does not affect test
• Continuously uses inexpensive unused abrasive media

RCA tape abrasion test machine for mobile phone, PDA, MP3, CD player, portable computers and all kinds of surface coating test the wear-resistant products consumption test, load 275g. 175g, 55g scrolling not oiled paper or tape and sample friction to a certain number of rotary discrimination effect of the wear.

Qinsun Instruments Co., LTD! 
Address：NO.258 Banting Road., Jiuting Town, Songjiang District, Shanghai

E-mail：info@qinsun-lab.com

Web：http://www.abrasiontesters.com

Talking about Taber Abrasion Testing

Taber Abrasion is a quick and inexpensive procedure, designed to compare the wear rate and mass-loss of one or more material or coatings. A typical Taber abrasion test consists of a disk-shaped specimen that is placed in constant contact with an abrasive wheel, using predetermined forces to a specified number of cycles to determine wear. The most commonly used standards for these tests are: ASTM D4060, ASTM F1978-12 and MIL-A-8625.Qinsunlab  frequently recommends Taber abrasion as a quick and simple way to measure wear resistance and offer sufficient comparable data at a reasonable price. It gives a side by side comparison of several materials or coatings, so you can evaluate which material has better wear resistance under simulated, accelerated wear conditions.

The measurement of abrasion resistance, usually by the weighing of a material sample before and after subjecting it to aknown abrasive stress throughout a known time period, or by reflectance or surface finish comparisons, or by dimensional comparisons.

An abrasion test is a test used to measure the resistance of a material to wear stemming from sliding contact such as rubbing, grinding, or scraping against another material. An abrasion test may also be referred to as wear testing, as an abrasion resistance test, or simply as a resistance test. Wear testing is of interest in a number of technical fields, including civil and mechanical engineering, reliability engineering, metallurgy, and geology. These tests are of importance in ensuring the durability of a material in a particular product or application, and in ensuring that material that erodes because of abrasion does not cause environmental or safety hazards in the production or test environments or in use of the product.

Several factors are typically considered in developing or selecting an appropriate abrasion test for the application at hand. The shape of the contact area is taken into consideration, as is the composition of the two surfaces making contact with one another. Speed of sliding contact between the two surfaces, the force with which they act on one another, and the duration of contact between them may also be considered. In addition to the materials themselves, the environment in which they are making contact also plays a role in selecting an appropriate abrasion test.

Textile Abrasion Test

Textile AbrasionTest: Wyzenbeek vs Martindale

Martindale vs. Wyzeenbeek-Explained. 

Fabric Abrasion Tester is Suitable for woven, knitted, woven, decorative materials, coated fabrics and other apparent abrasion resistance testing and pilling performance test.

Both Wyzenbeek and Martindale are abrasion tests; which test different properties of a textile. Wyzenbeek involves rubbing along the warp and weft of the fabric whereas Martindale is a figure-8 rub. Success in one test does not infer success in the other.

The Wyzenbeek and Martindale tests are the two methods commonly used to predict wear-ability. Actual performance is determined by many factors such as fiber content, weaves, finishes, furniture design, maintenance, cleaning, and usage. Durability of an upholstery fabric is a complex interaction (combination) of a number of performance tests that, in addition to abrasion, includes seam slippage, piling, tensile strength, and usage.

“ Addressing the excessively large, sometimes phantom, Wyzenbeek wear numbers currently in the industry… ‘we test to either measure failure or to confirm success. We test to convey, not to impress.’ ”

What happens…

A Wyzenbeek machine is used for this test allowing sample of the test fabric to be pulled tight in a frame and help stationary. Individual test specimens cut from the warp and weft direction are then rubbed back and forth using an approved fabric as the abradant. The number of double rub cycles achieved before two yarn breaks occur or noticeable wear is observed is recorded as the fabric’s abrasion rating.

Martindale uses an oscillating test. Fabric samples are mounted flat and rubbed in a figure eight like motion using a piece of worsted wool cloth as the abradant. The number of cycles that the fabric can endure before fabric shows objectionable change in appearance (yarn breaks, piling, and holes) is counted. Number of cycles determines abrasion rating.

Abrasion levels are often over specified in the faulty assumption that abrasion tests predict a product’s overall durability and life span. A recent industry survey indicated that for many end-use applications, factors other than surface abrasion are more likely to result in fabric failure and therefore should be considered when evaluating product durability.

Considerations before Specifying

Abrasion resistance is only one component of durability. Considering this in combination with other factors will enable you to choose the most suitable fabrics for your project.

Always consult with your supplier to confirm that the fabric you are considering should perform well in the onsite environment.

Review the results of the other ACT recommended physical property tests for durability. Abrasion results alone do not predict a product’s lifespan.

Consider the style and quality of the furniture the specified fabric will be used on; seat pans with a waterfall edge and upholstered arms of a chair are common areas of wear. Is there adequate padding to support the upholstery?

Take into account the amount of traffic in the environment and the wear the fabric is likely to receive. Keep in mind, the ACT recommended physical tests for durability do not indicate how a product will perform in an abusive environment. • Determine whether or not the fabric will receive regular professional cleaning. Dirt is the enemy of fabric, but improper cleaning will also shorten the durability/lifespan of the product.

Evaluate whether or not the end use requires a fabric treatment. Applying treatments, finishes or backings to a fabric may enhance durability, but may also negatively affect flammability resistance, appearance or environmental properties.