Bağlayıcı Tipinin Kaplanmış Kağıtların Fiziksel Özelliklerine Etkisi


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Özcan A. , Zelzele Ö. B.

Mus Alparslan University Journal of Science, cilt.5, sa.1, ss.399-404, 2017 (Hakemli Üniversite Dergisi)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 5 Konu: 1
  • Basım Tarihi: 2017
  • Doi Numarası: 10.18586/msufbd.322353
  • Dergi Adı: Mus Alparslan University Journal of Science
  • Sayfa Sayıları: ss.399-404

Özet

Paper is a thin material used for drawing, printing or packaging. Generally, it is obtained as a result of pressing the cellulose pulp obtained from the wood fibers. Paper is the most important material in printing and packaging material. Nowadays, as a result of technological developments and the growth of the advertising industry, the expectations from the paper have increased. For this reason, paper coating process is done for having some physical properties. The main purpose of paper coating process is to cover the paper fibers by filling a thin film layer of pigment, binder and some additives onto the base paper or cardboard, to fill in the gaps between them and to obtain a smoother surface. Paper has to have better printability parameters in the printing industry. We can explain these parameters as surface smoothness, roughness, brightness, opacity and whiteness. Most commonly pigments used in paper coating are kaolin, clay and titanium dioxide and on the other hand binders are latex, starch and polyvinyl alcohol types. It requires using paper having different physical properties because of development in printing techniques, ink type and ink transfer method. In this study, the coating formulations were prepared using a pigment and two binders and coated on the base paper. The effect of the binder on the physical properties of the paper was examined and commented on. Coating used polyvinyl alcohol as a binder has a higher brightness value, whereas coating with starch has a higher opacity. Also, the coated papers were calendered and changing of physical properties after calendering process is shared.