Fourier Transform-Infrared Spectroscopy (FTIR) is an analytical technique used to identify organic (and in some cases inorganic) materials. This technique measures the absorption of infrared radiation by the sample material versus wavelength. The sample’s absorbance of the infrared light’s energy at various wavelengths is measured to determine the material’s molecular composition and structure. How FTIR …
Raman spectroscope is one of the popular characterisation tools for textile testing especially textile materials characterisation. Working Principles: It is based upon the interaction of light with the chemical bonds within a material. Raman is a light scattering technique, whereby a molecule scatters incident light from a high-intensity laser light source. Most of the scattered light …
Textile testing is done to ensure a certain level of quality and to do so different types of pieces of equipment, principles or methods can be applied. But it is essential to follow a prescribed and well-recognized methods to get valid and reliable test results. You cannot execute any test as your wish or convenience. …
The true representative of the bulk or population is termed as a sample and the process of selecting a sample is called the sampling process. Sampling for textile testing can be in- Fibre stage Yarn stage Fabric stage Garment stage Population: All elements, individuals or units that meet the selection criteria for a group to …
Zoning technique: When bulk is not homogeneous, a number of sub-samples must be taken at random from different places in the bulk. Question is how much and how many times should be taken from the different position of the bulk of loose fibres like cotton. It certainly depends on the heterogeneity of the bulk/fibre bales. …
To evaluate how something works under certain established methods or test standards. Textile testing is to check its properties under certain conditions in a standard environment prescribed as per Test standards. Types of Testing? Destructive testing: The testing which breaks the test specimen and goes as waste after testing is called destructive testing. For example, …