• 제목/요약/키워드: Print mottle index

검색결과 1건 처리시간 0.014초

고농도 도공의 건조조건이 도공지의 품질에 미치는 영향 (Effect of Drying Condition of High Solid Coating on the Coated Paper Properties)

  • 유성종;조병욱;이용규
    • 펄프종이기술
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    • 제42권1호
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    • pp.26-34
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    • 2010
  • Effects of drying condition (IR radiation) on the optical properties and the printability of coated paper were elucidated at various latex sizes and low and high coating color concentrations. It was found that the smaller latex provided better rheology and higher dry and wet pick strength than the larger one. The high solids coating resulted in higher paper gloss and smaller roughness than the low solids coating, even though the clay addition was reduced by 20 parts in the high solids coating. Increasing IR radiation prohibited binder migration into the base paper. Thus it improved binder distribution and decreased pores in the coated layer, resulting in the increased dry and wet pick strength and the improved printing gloss. On the other hand, the color trapping and ink set-off was impaired with increasing IR radiation. Print mottle index passed through a maximum with increasing IR radiation.