Paper substrates containing high surface sizing and low internal sizing and having high dimensional stability
This invention relates to a paper substrate containing high surface sizing and low internal sizing and having high dimensional stability, as well as methods of making and using the composition.
1. A paper substrate, comprising
a plurality of cellulose fibers;
at least one bulking agent; and
a sizing agent; wherein the paper substrate has a hygroexpansivity of from 0.6 to 1.5%, a CD Internal Scott Bond of not more than 300 J/m 2 and/or an MD Internal Scott Bond of not more than 300 J/m 2 .
2. The paper substrate according to claim 1 , wherein the paper substrate has a hygroexpansivity of from 0.6 to 1.25%.
3. The paper substrate according to claim 1 , further comprising
from 0.25 to 10 gsm of a sizing agent; wherein the paper substrate has a hygroexpansivity of from 0.6 to 1.25.
4. The paper substrate according to claim 1 , further comprising
from 0.25 to 10 gsm of a sizing agent; wherein the paper substrate has an Internal Bond/sizing agent ratio that is less than 100 J/m 2 /gsm and a hygroexpansivity of from 0.6 to 1.25%.
5. The substrate according to claim 4 , wherein an Internal Bond/sizing agent ratio is less than or equal to 80 J/m 2 /gsm.
6. The substrate according to claim 4 , wherein an Internal Bond/sizing agent ratio is less than or equal to 60 J/m 2 /gsm.
7. The substrate according to claim 4 , wherein an Internal Bond/sizing agent ratio is less than or equal to 40 J/m 2 /gsm.
8. The paper substrate according to claim 1 , wherein the at least one bulking agent is an expandable microsphere.