| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve change of properties and deterioration of a content in a paper container, to impart incinerating suitability and to improve crack, foldability of a base paper at the time of manufacturing, molding and body bulge and leakage after molding by providing a resin layer at the paper in which light beam transmittance of a specific wavelength, density and longitudinal rigidity are specified. SOLUTION: A resin layer is provided on a base paper having paper quality that a light beam transmittance when a wavelength of a light beam is 420 to 750nm is 0.1%T or less, density of the paper is 0.60 to 0.90g/cm<3> , and rigidity is 0.50gfcm or more per 1g/m<2> of a basis weight in a longitudinal direction. If necessary, the paper is provided with a layer mixed with 15% or more of kraft pulp at the time of manufacturing the paper, and this pulp containing layer is colored, added with titanium or talc or adding titanium or talc to front and rear layers of the paper as desired, thus suppressing the transmittance. the provision of the resin layer means to laminate a predetermined film on the paper.</p> |
