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Applicable standards of the washing color fastness tester

2025-03-28

The double-tub washing color fastness tester is used for washing color fastness, dry cleaning color fastness, rinsing color fastness, detergent efficiency and other washing and dry cleaning color fastness tests of various textiles, and evaluates the washing color fastness performance of textiles.

Main parameters:

1. Test container position: (12+12)×2.

2. Rotation speed: 40±2rpm.

3. Washing cup: 500ml and 1200ml, each tank contains 24 cup slots (12 large and 12 small), to meet different test requirements

4. Temperature control can reach 98℃.

Applicable standards:

ISO105M&SC4A, 5, 37, P3BIWSTM7, 115, 177, 193, 240, 241, AATCC2, 3, 28, 61, 62, 86, 132, 151, 190,BS1006NEXT2, 3, 5

C4A Color fastness to washing detergents

C5 Color fastness to dry cleaning

C10A Color fastness to oxidative bleaching damage

C22 Color fastness to residual staining in toilets

C23 Color fastness to toilet solvents

C37 Color fastness to chlorinated water and swimwear

P38 "MST" washing stability

BS EN ISO 105C01-C05 Color fastness to washing

BS EN ISO 105C06 Color fastness to household and commercial laundry

BS EN ISO 105C08 Color fastness to phosphate-free household and commercial laundry

BS EN ISO 105C09 Color fastness to household and commercial laundry - Oxidative bleaching using low temperature bleach activators

BS EN ISO 105D01 Color fastness to 1,000 washes

BS EN ISO 105E03 Color fastness to chlorinated water

BS EN ISO 105X05 Color fastness to organic solutions


Fabric folding thickness and shrinkage detection method

2025-03-28

1. Folding thickness of fabric Fabrics are divided into thicknesses, and clothing made from fabrics also has thicknesses; this thickness is expressed by the folding amount, so the folding amount needs to be considered when making patterns. The folding amount indicates the degree of folding thickness of the fabric, which is present in any garment. The folding amount is just different in size. The thicker the fabric, the greater the folding amount; the thinner the fabric, the smaller the folding amount. Example: The folding amount of denim jeans W: 1.2cm K: 0.6cm H: 1.2cm SB: 0.6

2. Shrinkage of fabrics

There are two types of clothing fabrics: natural fabrics and chemical synthetic fabrics

a: Natural fabrics: woven from natural fibers, mainly plants, such as cotton and linen, which have a large shrinkage rate, and animals, such as silk, wool, and leather, which have a small shrinkage rate.

b: Chemical synthetic fabrics: The main ones woven from chemical synthetic fibers include polyester, nylon, acrylic, chlorine fiber, chlorine fiber, etc., which do not shrink.

(The other kind of fabric is a mixture of natural and chemical materials, such as polyester and cotton, with low shrinkage)

Due to the characteristics of natural fabrics, natural fabrics shrink after washing. Cotton and linen fabrics shrink the most. In daily life, especially casual clothing, most pure cotton fabrics are used, so the shrinkage rate must be considered when producing paper patterns. .

No shrinkage: the size of a before washing is m and the size after washing is n, then a=m-n/m×100%

Since the fabric has two yarn directions: transverse and longitudinal, there are also two shrinkage rates:

a vertical = m vertical - n vertical / m vertical × 100%

a horizontal = m horizontal - n horizontal / m horizontal × 100%

Generally speaking, when making a paper pattern, the shrinkage rate of the fabric will be informed. If we don't know the shrinkage rate of this fabric, we can use the following two methods to calculate the shrinkage rate.

a: Don't consider the shrinkage rate first, directly make a paper pattern of the middle code to make a board, and then take it to the washing plant to wash (note that the washing method must be the same as the washing method of the bulk goods). After washing, measure the board again, compare it with the finished product specifications, subtract more, and add less. This way, the board is more accurate, but it takes too long to make the board.

b: Take a piece of fabric for bulk goods, sew the edges around, and use a pen to draw a square in the middle of the cloth with a side length of 40cm, two sides parallel to the fabric grain, and two sides perpendicular to the fabric grain 40x40cm, then wash it. The washing method is the same as the bulk goods. After washing, measure each side of the square, and it becomes 36x36cm data.

Reuse a=m-n/m×100%

a vertical 40-38/40x100%=8%

a horizontal=40-36/40x100%=10%

Therefore, the shrinkage rate of the fabric is: vertical: 5% horizontal: 10%.

However, considering the fixing effect of the seams, the shrinkage rate of clothing is actually slightly smaller, so it should be determined according to the specific situation.

The purpose of calculating a longitudinal and a transverse is to calculate the length with a longitudinal and the circumference with a transverse to calculate the shrinkage rate in order to calculate the data K before washing. From the shrinkage rate formula, it can be deduced that K=?

Furthermore, it can be deduced that: K longitudinal=e longitudinal/1-a longitudinal (to calculate the length of clothing)

K transverse=e transverse/1-a transverse (to calculate the circumference of clothing)

For the parts where the vertical and horizontal are connected, the shrinkage rate is taken as the average value, such as the fabric patterns of the waist and the waistband are perpendicular to each other.

Example: w: 66cm-68.6cm (shrinkage rate: vertical 3%/horizontal 4%) SL: 55.9-57.5cm.

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Maintenance method of universal strength tester

2025-03-28

1. Each time you turn on the instrument and start a new set of tests, you must press the reset button to restart the instrument, otherwise the data processing will be incorrect.

2. When the instrument is reset and the zero key is pressed, it contains the function of automatically clearing (peeling) the force sensor. Please note that when starting the instrument, the upper clamp should not be subjected to any additional force except its own weight, otherwise, inaccurate peeling will lead to inaccurate testing.

3. The instrument input setting parameters should be performed before a set of tests begins, otherwise, data processing errors will occur.

4. The instrument has been calibrated for the strong force indication before leaving the factory. Non-professional calibration and maintenance personnel are not allowed to calibrate it arbitrarily, otherwise the instrument will cause inaccurate force measurement.

5. The force sensor can be cleared while waiting for the test and calibrating the display status. After pressing the zero key, wait 2 seconds before starting the test.

6. In the instrument automatic control program, there is a test value judgment program, which will automatically delete the obviously wrong test data (including the measured value after the sensor zero point drifts seriously and the impact strength value); please note that if the instrument automatically deletes the current test value for many times in a row, it is generally because the reset value has been offset. You should press the reset key to reset it again before continuing the test.

7. The maximum allowable setting of the sample value and the number of sample varieties of this machine are limited to 255 times. At the same time, the number of samples × the number of samples <500, the computer automatically determines whether it is a memory overflow and prompts with text on the LCD screen.

8. If you want to print the test curve, you should print it after the current test is completed, that is, only print the current test curve. If this test is the last test of this group, print the curve first and then print the report.

9. Note that the force on the upper clamp should be less than the full scale value of the instrument. Avoid the impact of the upper clamp, otherwise it is easy to damage the force sensor.

10. Clean and maintain the instrument well, and lubricate the screw and guide rod in time.

11. Regularly calibrate the instrument to ensure the accuracy of the instrument's measurement value.

12. Non-professional maintenance and calibration personnel are not allowed to dismantle the instrument. The measurement performance must be calibrated after each dismantling to avoid instrument inaccuracy.

13. If there is a sudden failure during operation, emergency stop must be performed and restart must be performed.


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Operation method of electronic fabric strength machine

2025-03-28

Take the fabric stretching function as an example:

1. Operation adjustment

(1) Clamping distance adjustment

Before the instrument tensile test, the clamping distance between the upper and lower clamps must be adjusted to be consistent with the set value. The specific adjustment method is:

①. Press the up button on the control panel to make the crane rise. After rising a certain distance, press the stop button to stop the crane.

②. According to the required length of the sample, move the lower limit block to the position of the corresponding hole (or indicator arrow) on the limit rod and tighten it. The limit rod is drilled with a lower limit positioning stop hole for positioning the lower limit collision block. Each hole indicates the clamping distance of the clamp to be tested.

③. Press the down button to make the crane descend to the lower limit position and stop automatically. Use a steel ruler to measure the distance between the upper and lower clamps. If there is a slight difference with the clamping distance requirement, the height of the upper limit collision nut can be adjusted (thread adjustment) to finally make the distance between the upper and lower clamps consistent with the clamping distance requirement.

④. According to the adjusted distance between the upper and lower clamps, check whether it is consistent with the set clamping distance. If not, repeat the above steps until it meets the requirements.

(2) Selection of pre-tension clamps

According to the specifications of the specimen, calculate the pre-tension value required for clamping the specimen according to the test standard, and then select the corresponding pre-tension clamp. (3) Test parameter setting According to the standard requirements, enter the value as prompted by the LCD screen. (4) Adjustment of stretching speed When testing a specimen, prepare a number of additional specimens more than the specified number of test strips for preliminary testing to determine the stretching speed.

(3) Test parameter setting

According to the standard requirements, enter the value as prompted by the LCD screen.

(4) Adjustment of stretching speed

When testing a specimen, prepare a number of additional specimens more than the specified number of test strips for preliminary testing to determine the stretching speed.

2. Clamping the specimen specimen clamp

According to the customized function configuration, take the corrugated clamp for fabric stretching function as an example:

a. Rotate the clamp handle to loosen the corrugated clamp;

b. Insert one end of the test strip from the bottom of the upper clamp into the opened upper clamp clamping mouth, and keep the specimen and the jaws straight:

c. Rotate the handle to clamp it;

d. Loosen the lower clamp handle to open the lower clamp jaws;

e. Pass the other end of the test strip clamped in the upper clamp through the lower clamp jaws, and clamp the strip through the jaws with the selected pre-tension clamp so that the specimen is straightened under the action of the pre-tension clamp;

f. Rotate the lower clamp handle to clamp the lower end of the specimen, and then remove the pre-tension clamp, and the specimen clamping is completed.

3. Tensile test

Press the start button on the base, the crane rises, and stretches the sample clamped between the upper and lower clamps. After breaking, the crane automatically returns to its original position, and the instrument automatically records and displays the maximum strength value (peak strength value), tensile length, elongation, breaking time and test number at the time of breaking.

4. Check and process the test results

①. Check the fracture position of the sample. If the distance between the fracture and the upper and lower clamp jaws is s5mm, cancel the test value and re-test. Press the delete key, and the instrument will process the test value accordingly (minus one, the test is invalid).

②. If the fracture position of the sample is normal; the test is valid, the strength and elongation curve of the test can be printed at this time, and then check the test number value. If the sample display value (the number of tests for this type of sample) is consistent with the set value, it indicates that the test of this type of sample is completed. Replace the new sample and continue the test; if the display value is less than the set sample value, repeat the previous action and continue the test on the strip sample of this type of sample.

5. Printing test report

After the sample has been tested for the required number of times, that is, when the sample display value is consistent with the set sample value, it means that the test of this sample has been completed and it can be printed at this time. When printing, press the print key, select the print format, and then print the test report after confirmation. Before printing, ensure that printing paper should be added to the printer; in addition, the printer's online indicator (ONLINE) must be on. After printing, you can continue to test, and press the print key later to print. If you need to perform a new test after printing, you need to press the reset key and then test again. If you need to print repeatedly, press the print key again after printing.

6. Display the test results directly through the LCD screen on the display panel.

7. After one set of samples is tested, press the reset button to restart the instrument and clear the existing stored data in the computer so that it can start working again.


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Shoe material testing equipment

2025-03-28

There are many types of shoe material testing equipment, which are used to test various properties of shoe materials. The following are some common shoe material testing equipment:

Toe bending test machine: used to test the bending resistance of finished shoes and evaluate the bending resistance of shoe materials.

Upper leather stretch test machine: simulates the compression, stretching and bending of the upper during walking after wearing shoes.

Leather wear test machine: suitable for the wear resistance test of wear-resistant materials used on the heels of leather shoes.

Bending test machine: used to connect and bend test pieces of a certain size, and observe the degree of cracking and damage of the test pieces after a certain number of bends.

Leather shoe shank stiffness tester: suitable for the determination of the longitudinal bending stiffness of the leather shoe shank.

Safety shoe compression tester: suitable for steel toe compression and steel mid-plate puncture resistance test of all types of safety shoes.

Anti-puncture bending test machine: test the bending resistance of safety insoles.

Leather Flex Tester: Determines the material's resistance to cracking or flexing at a bend crease.

Rubber resilience impact tester: measures the impact resistance of elastic materials and soft porous materials.

Sole static anti-slip tester: tests the static anti-slip properties of outsoles, high-heeled shoe heels and related outsole materials.

Testing machine double-arm tensile machine: used for various materials for tensile, compression, bending, shearing, bonding strength, peeling, tearing and other tests, suitable for a variety of materials.

Low-temperature sole bending tester: examines the bending resistance of the sole under low temperature environment.

Whole shoe wear tester: suitable for testing the wear resistance of finished shoe soles and molded soles (sheets).

Heel impact tester: simulates the ability of women's high-heeled shoes to resist sudden impact when wearing and walking.

Safety shoe withstand voltage tester: tests the voltage value that the sole or insulating shoe material can withstand.

Water vapor permeability tester: measures the water vapor permeability of leather or synthetic materials used for shoes or personal protective equipment.

Anti-yellowing chamber detector: simulates sunlight to measure anti-yellowing performance.

Rubber soles and shoes ozone aging tester: Evaluate the weather resistance of rubber soles and shoes in ozone environment.

These equipments cover a variety of performance tests such as bending resistance, wear resistance, impact resistance, puncture resistance, voltage resistance, water vapor permeability, etc. of shoes, and are indispensable tools in shoe production and quality control.


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What are the factors that affect textile shrinkage?

2025-03-28

Measuring shrinkage is one of the common testing methods for textile testing, but practice has proven that the shrinkage of textiles is affected by many factors. Therefore, understanding the factors that affect textile shrinkage has positive significance for the scientificity and accuracy of measuring shrinkage.


Common factors that affect textile shrinkage include:

1.Fiber composition: Compared with synthetic fibers (such as polyester, acrylic), natural plant fibers (such as cotton, linen) and plant regenerated fibers (such as viscose) are prone to moisture absorption and expansion, so the shrinkage rate is larger, while wool is due to the scale structure on the fiber surface. It is easy to felt, which affects its dimensional stability.


2.Production and processing process: Since the fabric will inevitably be stretched by the machine during the dyeing, printing, and finishing processes, tension exists on the fabric. However, the fabric can easily release the tension when exposed to water, so we will Noticed fabric shrinkage after washing. In actual processes, we generally use pre-shrinking to solve this problem.


3.Fabric structure: Generally speaking, the dimensional stability of woven fabrics is better than that of knitted fabrics; the dimensional stability of high-density fabrics is better than that of low-density fabrics. Among woven fabrics, the shrinkage rate of plain weave fabrics is generally smaller than that of flannel fabrics; while among knitted fabrics, the shrinkage rate of plain knitted fabrics is smaller than that of ribbed fabrics.


4. Washing and care process: Laundry care includes washing, drying, and ironing. Each of these three steps will affect the shrinkage of the fabric. For example, the dimensional stability of hand-washed samples is better than that of machine-washed samples, and the washing temperature will also affect its dimensional stability. Generally speaking, the higher the drying oven temperature, the worse the stability. The drying method of the sample also has a relatively large impact on the shrinkage of the fabric.


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2017 The 122nd Canton fair

2025-03-28

We are professional manufacturing and trading enterprise of various kinds of bags and luggages for outdoor and daily use with more than 15 years production experience. We 

Testing equipment a tool to enhance the competitiveness of manufacturers

2025-03-28

    In the wire and cable industry, accurate and reliable quality testing is an important link to ensure product performance and safety. Tophung is an enterprise specializing in the production of wire and cable testing equipment, and has long served many cable companies at home and abroad to explore the quality testing solutions of cable products in an all-round way. In the wire and cable industry, our main products are: TH-5806 Cable Bending testing machine, TH-5807 Cable 2D torsion testing machine, TH-5812 Cable vertical torsion testing machine, TH-5813 Cable drag chain bending testing machine, TH-5814 Cable 3D torsion testing machine, etc., these machines can be obtained from different repeated experiments. Detects the cable's performance of plastic deformation and displays its own defects.

    Our company offers wire and cable bending testing equipment with a variety of flexible functions and technologies, enabling manufacturers to achieve comprehensive quality control and product improvement. Here are a few highlights of our diverse testing:

1. Multi-angle bending test: Our equipment can simulate the use conditions of wire and cable at different angles, and ensure the reliability and durability of products through bending test at various angles. This helps manufacturers identify potential bending damage and failure points in advance to avoid subsequent problems caused by bending and improve product reliability and user satisfaction.

2. Accurate bending radius measurement: Our equipment uses advanced measuring technology to accurately measure the bending radius of wire and cable. By monitoring the change of bending radius, manufacturers can adjust the production process in time, and maintain consistent bending performance in the quality control process, to avoid product quality problems caused by too large or too small bending.

3. Dynamic bending simulation: Our equipment can simulate the dynamic bending of wire and cable in actual use. By conducting dynamic bending tests on products, manufacturers can better understand the performance of wire and cable under motion and vibration conditions, further optimize the structure and material of the product, and improve the reliability and durability of the product.

    Our wire and cable bending testing equipment helps manufacturers to improve product quality, improve production efficiency and enhance market competitiveness. We are committed to providing the most advanced inspection solutions for the wire and cable industry, helping manufacturers achieve sustainable development and industry leadership.

    Tophung - reliable production equipment manufacturers!

 

What is ASTM machine?

2025-03-28

ASTM (American Society for Testing and Materials) machines are specialized testing instruments designed to evaluate the mechanical and physical properties of materials according to ASTM standards. These machines play a crucial role in ensuring the quality, safety, and performance of materials used in various industries, including metal manufacturing, new composite materials, solar photovoltaic energy, wire and cable, automotive, and plastics.

 

At Suzhou TOPHUNG Machine Equipment Co., Ltd., we specialize in the research, development, production, sales, and service of high-quality ASTM testing machines. Our advanced testing equipment ensures that materials meet the rigorous requirements set by ASTM, enabling manufacturers to maintain consistency, reliability, and compliance with international quality standards.

 

Types of ASTM Testing Machines

ASTM testing machines come in various types, depending on the specific property being tested. Some common categories include:

  1. Material Mechanics Testing Machines – Used for tensile, compression, and bending tests on metals, plastics, and composites.
  2. Photovoltaic Special Testing Machines – Designed for evaluating solar panels and photovoltaic components.
  3. Cable Testing Machines – Ensure the durability and strength of electrical wires and cables.
  4. Fully Automatic Testing Machines – High-precision equipment for automated testing processes.
  5. Dynamic Fatigue Testing Machines – Simulate long-term stress conditions on materials and products.

Why Choose TOPHUNG for ASTM Testing Machines?

  • High Precision & Reliability – Our machines are built with advanced technology to provide accurate and repeatable test results.
  • Comprehensive Solutions – We offer a wide range of testing equipment, covering various ASTM standards for different industries.
  • Customization & OEM Services – We provide tailored solutions to meet specific customer needs, ensuring maximum efficiency and compliance.
  • Strict Quality Control – Each machine undergoes rigorous quality checks before delivery, ensuring long-term performance and stability.
  • Global Export Expertise – With years of experience in international trade, we supply ASTM testing machines to customers worldwide, offering professional after-sales support.

ASTM machines are essential for material quality assessment and compliance with international standards. At Suzhou TOPHUNG, we are committed to providing cutting-edge testing solutions that help businesses enhance product quality, reduce risks, and improve competitiveness in global markets. Whether you need material mechanics testing, photovoltaic testing, or cable testing machines, our team is ready to support you with top-notch equipment and technical expertise.

What is the function of Universal Testing Machines (UTMs)?

2025-03-28

    Universal testing machines (utm) play a vital role in various industries by examining the mechanical properties and properties of materials, components and finished products. These versatile machines can perform a wide range of tests, including tensile strength, compression, bending, shearing and more.

    Suzhou Tophung has been committed to providing our customers with professional material testing, structural testing and finished product testing excellent test instruments and overall quality testing solutions.

 

    TOPHUNG's utm is designed with precision and accuracy in mind, ensuring reliable and repeatable test results. With different load capacities and flexible test configurations, it can meet the test needs of different industries. Whether you need to test metal materials, composites, solar panels, wire and cable, automotive parts or plastic products, our utm offers a complete solution. They enable you to assess the durability, strength and integrity of materials and finished products, ensuring compliance with industry standards and regulations.

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