액체 침투 특성과 표면 거동 분석을 이용한 사이즈도 자동측정법

This study was to develop a novel automatic system for measuring Stöckigt sizing degree and contact angle at a time. The conventional methods to measure sizing degree had serious problems in obtaining significant differences according to different dosages of a sizing agent, and moreover they disclosed unique limitation due to liquid types used and tester’s subjectivity. However, the newly developed system could get reproducible results through total automation of all procedures including liquid dropping,image acquisition and measurement of both Stöckigt sizing degree and contact angle. For the Stöckigt sizing test, the automatic system could measure sizing degree with more definite differences according to different dosage of AKD, compared to the conventional method. For the contact angle test, the automatic system showed a similar trend to the conventional method but had smaller contact angles due to distortion of an image focus by a sheet curl than the conventional testing machine. The problem from the image out of focus due to specimen curl will be overcome with adopting a new specimen holder for the future system.