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Nonwoven material, also called non-woven fabric (nonwoven fabric) is a kind of fabric that does not need spinning and weaving. It is just oriented or randomly supported textile short fibers or filaments to form a fiber network structure, and then reinforced by mechanical, thermal bonding or chemical methods.

To put it simply: it is not made of yarn interwoven and braided together, but the fibers are directly bonded together by physical methods, so that when you get the scale in your clothes, you will find that it is impossible to pull out the threads.

What is vacuum blood collection tube?
A vacuum blood collection tube is a sterile glass or plastic test tube with a colored rubber stopper creating a vacuum seal inside of the tube, facilitating the drawing of a predetermined volume of liquid. Vacuum blood collection tubes may contain additives designed to stabilize and preserve the specimen prior to analytical testing. Tubes are available with a safety-engineered stopper, with a variety of labeling options and draw volumes. The color of the top indicates the different additives in the vial.