First, try searching Egypt textiles in the library catalog. Books beginning with Dewey 746 are located on the second floor in the inner mezzanine.
Next, take a look at ARTstor. Try the term Egyptian textiles. Then review the metadata for the images to ensure they are from Egypt. See if there is a particular collection specific to your subject. Or, you could try an advanced search by location and time period. You can save images and details of images when you download. You will need to register to download images.
Then, broaden your topic by searching in Oxford Art Online under the subject term textiles. As you scroll through the entry you will see a reference to Egyptian textiles and an image of ancient textile workers. Oxford Art Online has a cite feature, so take advantage of copying and pasting the citation into your bibliography.