Wet roll having uniform composition distribution
View Patent ↗A method of making wet rolls includes providing a web of material, applying a wetting solution to the web to produce a wet web, and winding the wet web into a roll. The wetting solution may include an inorganic salt and at least one preservative. The wetting solution may be distributed evenly throughout the wet roll.
1. A method of winding a wet web, comprising:
providing a wet web of material;
applying a wetting solution to the web to produce a wet web, the wetting solution comprising a salt; and
winding the wet web into a wet roll;
wherein the variability of the salt throughout the wet roll is less than about 20%.
2. The method of claim 1 , wherein the variability of the salt is less than about 10%.
3. The method of claim 1 , wherein the variability of the salt is less than about 5%.
4. The method of claim 1 , wherein the variability of the salt is less than about 3%.
5. The method of claim 1 , wherein the wetting solution further comprises at least one preservative; the variability of each preservative throughout the wet roll being less than about 60%.
6. A method of making wet rolls, comprising:
providing a web of material;
applying a wetting solution to the web to produce a wet web, the wetting solution comprising at least one preservative; and
winding the wet web into a wet roll;
wherein the variability of each preservative throughout the wet roll is less than about 60%.
7. The method of claim 6 , wherein the variability of each preservative is less than about 50%.
8. The method of claim 6 , wherein the variability of each preservative is less than about 40%.
9. The method of claim 6 , wherein the variability of each preservative is less than about 35%.
10. The method of claim 9 , wherein the wetting solution further comprises a salt.
11. The method of claim 10 , wherein the salt is an inorganic salt.
12. A method of making wet rolls, comprising:
providing a web of material;
applying a wetting solution to the web to produce a wet web, the wetting solution comprising a salt and at least one preservative; and
winding the wet web into a wet roll;
wherein the variability of the salt throughout the wet roll is less than about 10%, and the variability of each preservative throughout the wet roll is less than about 50%.
13. The method of claim 12 , wherein the variability of the salt throughout the wet roll is less than about 5%, and the variability of each preservative throughout the wet roll is less than about 40%.
14. The method of claim 12 , wherein the variability of the salt throughout the wet roll is less than about 3%, and the variability of each preservative throughout the wet roll is less than about 35%.
15. The method of claim 12 , wherein the variability of the salt throughout the wet roll is at most about 2.5% , and the variability of each preservative throughout the wet roll is at most about 32.5%.
16. The method of claim 12 , wherein the salt is inorganic.
17. The method of claim 16 , wherein the salt is sodium chloride.
18. The method of claim 12 , wherein the preservative comprises a substance selected from the group consisting of IPBC, DMDM Hydantoin, and malic acid.
19. The method of claim 12 , wherein the preservative comprises IPBC, DMDM Hydantoin, and malic acid.
20. The method of claim 12 , wherein the web comprises a water-dispersible binder.
21. The method of claim 12 , wherein the wet roll is coreless.