Methods of textile damage analysis

The subject of preliminary examination is as varied as a later part of this section, namely miscellaneous methods. There may also be no clear-cut separation between the two. Preliminary examination is composed of simple tests, carried out in a short time and with little effort, which give the first clues in damage analysis. 

It is usual to begin with an exact visual examination, if possible in comparison with an undamaged sample. Notice should be made of any peculiarities in appearance. Sometimes abraded and raised areas, holes, thin places and pressure marks can be easily recognized without optical aids. With the use of a magnifying glass they can be seen more clearly and in more detail. The same is true for many 

After marking the damaged area, woven fabrics can be separated into warp and weft threads and knitted fabrics unravelled in order to investigate the isolated threads more thoroughly. Do the threads from the damaged area show differences in diameter, twist level or yam composition Are stray fibres discernible  

Rapid methods of separating fibre blends for damage analysis 

Part of the preliminary examination of textile blends consists of dissolving out one fibre component and examining the residual fibre to see which fibre components are damaged. The following methods of separation have proved useful  

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