What Does "Grade B" Mean in the Sanitary Products Industry? A Clear Definition

⭐2. What Defects Lead to a Grade B Classification?

Grade B downgrades typically fall into three categories:

Cosmetic imperfections: Including unclear embossing patterns, slight wrinkles or specks on the top sheet or backsheet, minor color deviations (ΔE values within acceptable tolerances), or waist tape/ear placement offsets within 2–3 millimeters. These affect visual appearance only and do not compromise any functional metric.

Packaging defects: Including wrinkles on heat-sealed areas of the packaging bag, slight print misalignment or uneven ink density on the packaging artwork, or uneven sealing tape on cartons. The internal packaging's seal integrity and the product's hygienic barrier function remain fully intact.

Dimensional and basis weight tolerances: Including product length or width that falls within tolerance limits but deviates from the nominal value, or per-unit weight slightly below the nominal specification while still remaining above the minimum standard requirement. These deviations have negligible impact on total absorption capacity or fit.