| 초록 |
Strength is a key paper characteristic that papermakers must control to produce the sheet of desired quality at a target production rate. In the two dynamic areas of the paper industry, board and tissue, various natural polymers and syntheic resins have found a wide use as flexible and economical tools for paper strength control. A number of means are available for papermakers to allow for control of the sheet strength. Driven by the high cost of virgin fiber and also by environmental pressure, both board and tissue industries have moved towards a greater use of less expensive recycled fibers, which inherently produce weaker sheet. In case of raw material or operation limitations, chemical means are often used as flexible and ecomical tools for strength control. In this paper introduce strength chemicals applicaiton cases. |
