Paper for non combustion heating type smoking article, non combustion heating type smoking article, and electric heating type smoking system

摘要

A color difference value in the CIELab color system before and after heating at 230 ° C. for 3 minutes is shown in the following equation (1), and the number of discrimination values obtained by substituting the following equation (1) is lower than 0.62, and a paper roll for the non combustion heating type smoking article having a white portion having an ISO whiteness of 83% or more is provided.Discrimination score (y) y = 0.18 ×Δ L * + 0.08 ×Δ A * + 0.13 ×Δ B * - 2.36 (1)In the equation (1), the color difference value in the CIELab color system before and after heating is obtained by subtracting L *, a * and B * values before heating from the L *, a * and B * values after heating.Δ L * shows the difference of lightness L * before heating and heating the paper Δ A * shows the difference in chromaticity a * before heating and heating the paper Δ B * indicates the difference of the chromaticity b * before heating and heating the paper.)