Effect of Substrate Porosity on Double Coating Structure

기질의 공극성의 이중 도공 구조에 미치는 영향

  • 김병수 (메인대학교 화학공학과) ;
  • 박중열 (경상대학교 산림과학부 임산공학과) ;
  • 정현찬 (순천대학교 산림자원학과)
  • Published : 1998.12.01

Abstract

The process of double coating consists of bottom coating using relatively coaser pigments to improve characteristics of base paper and top coating using finer pigments to cover unevenness of the bottom coating and to give various function of the coated paper. The structure of precoating is influenced not only by its components, but also characteristics of base paper, Moreover pore size and its size distribution of precoating are expected to influence the top coating properties, but this is not well understood. Coating and printing operations involve the application of pigmented fluid on top of a porous substrate. The porosity of the substrate has been shown to influence the properties of the coating, but a good understanding of the mechanisms is lacking in the literature. The role of pore size and void volume on top coating structure is unclear.

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References

  1. Tappi J. v.70 no.12 Leskinen, A.M.
  2. Tappi J. v.79 no.5 Xujun, H.;Philippe, A.;Rounan, L.;Jay S. Van Wagner.
  3. Pulp Paper Canada v.90 no.3 Hassell, M. V.;Plated, R.M.;Newberry. V.F.
  4. Paper Technology v.5 Bluvol, G.;Swanson, E.T.
  5. TAPPI Coating Conf. Proceedings Fujiwara, H.;Kaga, C.
  6. TAPPI Coating Conf. Proceedings Stig, V.R.;Pentti, J.R.;Pentti, C.R.
  7. JPPS. v.20 no.8 Larrondo, L.;St-Amour, S.