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ROLL GOODS CONVERTING
Nonwoven roll goods are converted in a variety of ways, such as die cutting to specific shapes, slitting to the widths required for end product converting, perforating to increase bulk for absorbency and rewinding to prepare rolls for end product converting.
END PRODUCT CONVERTING
A wide range of production processes has been developed to convert nonwovens
into products ready for end-use. The quality and speed of these converting
processes have continuously improved making significant contributions
to the overall cost competitiveness of nonwoven products. Nonwoven materials
are typically input into a converting process by unwinding the material
from rolls. Frequently some form of cutting is required to shape the material
for the end product. Sophisticated methods include die, knife, or water
thermal fusing, ultrasonic welding or sewing. Many nonwoven end products
are folded or wound on small rolls prior to packaging. The converting
process of some products, such as premoistened wipes, involves impregnating
nonwovens with solution after folding in packaging.
END PRODUCT PACKAGING
AND STERILIZATION
The end products which contain nonwovens employ many different types of
primary and secondary packaging. Poly bags, boxes, cartons, pouches, blister
packs, envelopes, and sealed trays are examples of the packaging forms
involved. Nonwovens themselves are also used as packaging materials. Nonwovens
used in surgical products are sterilized after the products are converted.
The sterilization techniques that are most often used are radiation, ethylene
oxide and steam. Except for radiation, all sterilization processes require
the use of nonwovens with controlled porosity to permit sterilant to enter
and leave.
For additional information, contact MDI @ (800)
333-0900.
