The light transmittance testing machine is a specialised testing equipment for testing the light transmission of fabrics. Light transmission refers to the degree to which a fabric transmits light and is often used to measure the breathability and transparency of a fabric. The light transmittance test is a very important test to help manufacturers understand the quality and performance of their fabrics so that they can make the necessary adjustments and improvements in the production process.
The light transmittance testing machine works on the principle of optics, where a beam of light is emitted from a light source, passes through a fabric sample and eventually reaches a photoelectric sensor. By measuring the light transmittance, a value is derived which reflects the degree of light transmission through the fabric.
1. light source: for emitting light.
2. sample holder: to hold the fabric sample in place. 3.
3. photoelectric sensor: to measure the light transmission. 4.
4. the controller, which controls the test process and records the results.
Before the test can be carried out, a fabric sample needs to be prepared. The fabric sample is usually cut to a fixed size and then held in the test device by the sample holder.
To carry out the test, the light source is switched on and the fabric sample is then held in the sample holder. Next, the photoelectric sensor is placed on the other side of the sample and the light intensity of the light reaching the photoelectric sensor through the fabric sample is recorded. By calculating the percentage of light passing through the fabric sample, we can obtain the light transmission rate of the fabric.
The light transmittance testing machine is very versatile and can be used to test a variety of different types of fabric, including cotton, polyester, nylon, silk and other materials. During the test, some attention to detail is required, such as ensuring that the light intensity of the light source is strong enough to ensure the accuracy of the test results. The gripping strength of the sample holder also needs to be adjusted to ensure stability of the sample fixed in the test device.
The results of the fabric light transmission test can help manufacturers to understand the quality and performance of their fabrics so that they can make the necessary adjustments and improvements in the production process. For example, if the test results show that the light transmittance of a fabric is too low, this means that the fabric may not be breathable enough and the manufacturer may consider using a more breathable material or changing the production process to improve the breathability of the fabric.
In conclusion, the light transmittance testing machine is a very useful piece of equipment to help manufacturers understand the performance and quality of their fabrics so that they can make the necessary adjustments and improvements in the production process. By using the light transmittance testing machine, we can obtain accurate test results that will improve fabric quality and production efficiency.
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