2016年12月21日星期三

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. 



2016年12月13日星期二

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.

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