Linting refers to the tendency for some types of yarned and stapled fabric ﬁ bres to shed tiny particles into the atmosphere. This ﬁ bre displacement is greatly exacerbated when the fabrics are being moved or manipulated as is the case when working in a protective garment. In this case the lint that is shed can be a major source of contamination in applications ranging from paint spraying to cleanroom to hygiene-sensitive processes. On the other hand, fabrics manufactured from continuous synthetic ﬁ laments, such as Tyvek® have very low linting propensity and are suitable for medical, hygiene, paint and other particle-sensitive applications.
MICROPOROUS FILM (MPF)
ANNEXE 3: FABRICS - TYPES AND PROPERTIES
DURABILITY OF SMS, MPF AND TYVEK®FABRICS
The ﬁ gure illustrates fabric durability after 10 cycles of abrasion. At ﬁ rst glance SMS fabric remains unaffected but it has lower performance level. MPF protection barrier is impacted . The ﬁ lm gets abraded very easily and one can see that there are holes in the ﬁ lm. Only Tyvek® remains unaffected and has the highest protection level.
Figure 2. Abrasion: Simulation of wear and tear in everyday use.
AFTER 10 CYCLES OF ABRASION