How do you test for fabric shrinkage?

Fabric shrinkage testers are used to assess the shrinkage of knitted and woven fabrics. They can be used for testing the shrinkage of various textile materials, such as cotton, wool, and silk.

How do you test for fabric shrinkage?

Testing the shrinkage of a fabric usually requires washing and measuring. Here is a common testing method:

1. Sample preparation: Select a representative fabric sample and make sure it is large enough to be measured. Pre-treat samples according to specific washing conditions, such as machine washing or hand washing according to the instructions on the care label.

2. Washing: Put the sample into the washing machine or wash according to the specified method. Washing conditions may include water temperature, detergent type, and soaking time, among others. Usually the laundering conditions of the fabric in actual use are simulated.

3. Drying: Dry the washed samples properly. You can choose to dry naturally or use a dryer.

4. Measurement: After washing and drying, measure the dimensional change of the sample. Use a measuring tool such as a ruler or measuring instrument to measure the length or width of the fabric in different directions and record the corresponding values.

5. Calculate the shrinkage rate: Calculate the shrinkage rate of the fabric according to the measurement results. Generally, the shrinkage rate can be calculated according to the following formula:

    Shrinkage (%) = [(initial size - final size) / initial size] × 100

    Among them, the initial size is the size before washing, and the final size is the size after washing.

Note that specific test methods and conditions may vary by different standards, industries and applications. Therefore, when performing fabric shrinkage testing, it is recommended to refer to applicable standards (such as ASTM, ISO, etc.) or customer requirements, and perform the test according to the guidance provided by them. In addition, in order to ensure the accuracy of test results, attention should also be paid to controlling the consistency of test conditions, such as washing temperature, detergent dosage and drying method, etc.

Is there any reliable fabric shrinkage tester supplier?

1. SDL Atlas: SDL Atlas is a trusted supplier of textile testing equipment, including fabric shrinkage testers. They offer a range of testing instruments and have a global presence.

2. James Heal: James Heal is a renowned supplier of textile testing instruments, including fabric shrinkage testers. They provide a comprehensive range of testing equipment for various textile properties.

3. QINSUN: QINSUN is a leading supplier of textile testing equipment, offering a wide range of instruments, including fabric shrinkage testers. They provide reliable and accurate testing solutions.

4. Tinius Olsen: Tinius Olsen is a well-established supplier of materials testing equipment, including fabric shrinkage testers. They offer a variety of testing instruments and have a global presence.

When looking for fabric shrinkage tester suppliers, it is advisable to consider factors such as reputation, customer reviews, product quality, after-sales service, and pricing. Additionally, it is always a good idea to reach out to multiple suppliers, compare their offerings, and request quotes to determine the best fit for your specific requirements.

Some standards and guidelines for fabric shrinkage testing:

1. ASTM D3774-19a: This is a standard issued by the American Society for Testing and Materials (ASTM), called "Standard Test Method for Width of Textile Fabric" (standard test method for the width of textile fabrics). This standard covers methods for measuring fabric width and shrinkage.

2. ISO 5077: This is a standard issued by the International Organization for Standardization (ISO) entitled "Textiles -- Determination of dimensional change in washing and drying" (Textiles -- Determination of dimensional change after washing and drying). This standard provides methods for measuring the dimensional change of fabrics after washing and drying.

3. AATCC TM135: This is a standard test method issued by the American Association of Textile Chemists and Finishers (AATCC), called "Dimensional Changes in Automatic Home Laundering of Woven and Knitted Fabrics" (machine-washed fabrics and knitted fabrics dimensional changes Test Methods). This method is used to evaluate the dimensional change of fabrics in domestic laundering.

4. GB/T 8629: This is the standard issued by the Chinese National Standard (GB), entitled "Textiles -- Domestic washing and drying procedures for textile testing" (Textiles -- Domestic washing and drying procedures for textile testing). This standard specifies domestic washing and drying procedures in the testing of textiles.