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논문 기본 정보

자료유형
학술대회자료
저자정보
저널정보
한국펄프·종이공학회 펄프·종이기술 국제 세미나 펄프·종이기술 국제 세미나 제30권
발행연도
2004.7
수록면
19 - 42 (24page)

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초록· 키워드

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Sizing properties in paper are generally developed through the application of both internal and surface sizes. Rosin, wax, and synthetic sizes including ASA, AKD, and stearic anhydride are and have been used to provide wet-end sizing to paper. In many cases, the use of some of these sizes leads to runnability problems that are inherent in the wet-end operation. Variability in furnish, fines, broke, filler, water chemistry, conductivity, and pH control impacts the wet-end operation. Size press chemicals including starch and polymers such as styrene-acrylic, styrene-maleic, and styrene acrylate emulsions are used in conjunction with internal sizes to improve the paper surface for printing and strength properties, porosity, and opacity improvement. This paper will discuss results from a new, proprietary formulation and process that allows application of sizing chemistry more totally at the size press with reduced emphasis on wet end sizing Runnability issues are thus minimized at the wet-end, chemical usage is more efficient, and significant cost savings can be realized. Case histories will be presented illustrating the advantages of this new application in commercial trials.

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ABSTRACT

WET-END VERSUS SIZE PRESS SZING¹

APPROACH TO THE DEVELOPENT OF TOTAL SIZE PRESS SIZING

LABORATORY EVALUATION

PILOT PAPET MACHINE TRIAL

COMMERCIAL TRIALS

FINE PAPER COMMERCIAL TRIALS

CONCLUSIONS

REFERENCES

ACKNOWLEDGEMENTS

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