The ornamental design for an absorbent articlesubstrate with a pattern, as shown and described.
FIG. 1 is a front view of an embodiment of an absorbent article substrate with a pattern;
FIG. 2 is a rear view of the embodiment of an absorbent article substrate with a pattern shown in FIG. 1;
FIG. 3 is a top end view of the embodiment of an absorbent article substrate with a pattern shown in FIG. 1;
FIG. 4 is a left side view of the embodiment of an absorbent article substrate with a pattern shown in FIG. 1;
FIG. 5 is a right side view of the embodiment of an absorbent article substrate with a pattern shown in FIG. 1; and,
FIG. 6 is a bottom end view of the embodiment of an absorbent article substrate with a pattern shown in FIG. 1.
The broken lines, including those showing the diaper tabs and ears, are included for the purpose of illustrating environment and form no part of the claimed design.