FINISHING OF NONWOVEN FABRICS
The production of
nonwoven fabrics is carried out either as a continuous process, with fiber or
resin as the input material and a roll of fabric as output, or as a series of
batch processes. Correspondingly, fabric finishing is carried out either in
tandem with web formation and consolidation or off-line as a separate
operation.
 |
| Nonwoven fabric |
Nonwoven bonded fabrics
are, by definition, textiles and they can be finished in exactly the same way
as other textiles such as woven or knitted fabrics. There are many examples of
particular methods and types of finishing equipment being used for both kinds
of fabrics.
Nonwovens may be
given one or more of a variety of finishing processes as a means of enhancing fabric
performance or aesthetic properties. Performance properties include functional
characteristics such as moisture regain and transport, absorbency or
repellency, flame retardancy, electrical response, resistance and frictional behavior.
Aesthetic
properties include various attributes such as appearance, surface texture,
color, and odor.
Finishing of
nonwoven bonded fabrics can be classified from different ways. Some people
believe that nonwoven finishing processes can be categorized as chemical,
mechanical, or thermal-mechanical.
Chemical finishing involves the application of chemical
agents as coating to fabric surfaces or the impregnation of fabrics with
chemical additives
or fillers.
Mechanical finishing involves altering the texture of fabric
surfaces by physically reorienting or shaping fibers on or near the fabric
surface. Thermal-mechanical finishing involves altering fabric dimensions or
physical properties using of heat and pressure. Generally, finishing of
nonwoven bonded fabrics is classified as
Dryfinishing or Wet finishing.
0 Comments