摘要:
A pocket filter adapted for filtering grease and other liquid aerosols has first and second depth loading media with a separator that prevents wicking thereby to extend filter life and capacity. The first layer is also of lower efficiency than the second to distribute loading and further extend life. The spacer may be of unwoven fiber mesh. Various feature of the pocket filter ensure free flow of effluent streams.
摘要:
A dielectric substrate comprises a resin composition impregnated with non-woven fibrous mat material having a thickness of 5 mils (127 micrometers), wherein the fibrous mat material comprises fibers, having a diameter of 1 nm to 10 μm, that have been extruded through one or more openings to produce fibers that have been collected in the form of a fibrous non-woven mat, and wherein the fibers exhibit a multi-directional orientation in the non-woven mat material. The dielectric substrate is useful in circuit materials, circuits, and multi-layer circuits, economical to make, and has excellent electrical and mechanical properties.
摘要:
A first papermaking raw material for an upper layer and a second papermaking raw material for a lower layer are subjected to papermaking so as to form a filtering material with a continuous density gradient from the upper layer to the lower layer. Each of the papermaking raw materials contains natural fibers such as pulp and chemical fibers such as PET. The content of the chemical fibers in the first papermaking raw material is higher than the content of the chemical fibers in the second papermaking raw material. The diameter of the chemical fibers in the first papermaking raw material is larger than the diameter of the chemical fibers in the second papermaking raw material. The thus-obtained filtering material is able to collect a wide size range of particles and is made less susceptible to clogging and longer in life.
摘要:
The present disclosure generally relates to dispersible wet wipes. More particularly, the disclosure relates to a dispersible wet wipe constructed of a wipe substrate containing a tissue web consisting of cellulose fibers and a binder composition for binding said binder composition to said tissue web. The tissue web contains cellulose fibers that have a fiber length of 3 mm or less. The construction of the dispersible wipes may allow for a pass through percentage value calculates via a dispersibility shake flask test of at least about 70 percent for increased dispersibility. More desirably, the single-ply dispersible wet wipes may have a pass through percentage value of at least about 95 percent.