Creped paper product
View Patent ↗A creped paper product is provided according to the invention. The creped paper product comprises a result of creping a web of fibers comprising synthetic fibers to provide a creped paper product having a stretch of at least 3% in the machine direction according to TAPPI test T494. The web of fibers can include about 0.5 wt. % to 100 wt. % synthetic fibers based on the total weight of the fibers. In addition, the web of fibers can contain about 0.5 wt. % to about 10 wt. % of synthetic fibers and about 90 wt. % to about 99.5 wt. % of cellulosic fibers. When the web of fiber includes a mixture of synthetic fibers and cellulosic fibers, the creped paper product can be provided having a tear strength in the machine direction according to TAPPI test T494 at least 10% greater than an otherwise identical creped paper product that does not contain synthetic fibers. A method for forming a creped paper product is provided according to the invention.
1. A creped paper product comprising:
a creped paper substrate comprising a web of fibers comprising about 2 wt. % to about 5 wt. % polyester fibers based on the total weight of the fibers and about 90 wt. % to about 99.5 wt. % cellulosic fibers based on the total weight of the fibers, the creped paper substrate having a stretch of at least 3% in the machine direction according to TAPPI test T494 and a dry tear strength in the machine direction according to TAPPI test T494 at least 30% greater than an otherwise identical creped paper substrate that does not contain the polyester fibers, wherein the creped paper substrate is creped as a result of creping using a creping blade, and wherein the creped paper substrate has been treated with a latex composition so that the latex composition enters into the web of fibers;
a release layer provided on a first surface of the creped paper substrate;
adhesive provided on a second surface of the creped paper substrate; and
wherein the creped paper product is provided in the form of a roll.
2. A creped paper product of claim 1 , wherein the creped paper product has a dry tear strength in the machine direction according to TAPPI test T414 at least 20% greater than an otherwise identical creped paper product that does not contain the polyester fibers.
3. A creped paper product according to claim 1 , wherein the creped paper product has a dry tear strength in the cross direction according to TAPPI test T414 at least 5% greater than an otherwise identical creped paper product that does not contain the polyester fibers.
4. A creped paper product of claim 1 , wherein the polyester fibers have an average length of about 1 mm to about 100 mm.
5. A creped paper product of claim 1 , wherein the polyester fibers have an average length of about 1 mm to about 8 mm.
6. A creped paper product of claim 1 , wherein the web of fibers has a weight of about 10 lbs./3,000 ft 2 to 90 lbs./3,000 ft 2 .
7. A creped paper product of claim 1 , wherein the web of fibers has a Canadian Standard Freeness value of between about 100 cm 3 and 850 cm 3 according to TAPPI test T 227.
8. A creped paper product of claim 1 , comprising about 5 to about 100 crepe lines per lineal inch.
9. A creped paper product of claim 1 , comprising about 20 to about 30 crepe lines per lineal inch.
10. A creped paper product according to claim 1 , wherein the creped paper product comprises greater than 100 to about 200 crepe lines per lineal inch.
11. A creped paper product according to claim 1 , wherein the creped paper substrate is impregnated with the latex composition.
12. A method for forming a creped paper product comprising:
creping a web of fibers comprising about 2 wt. % to about 5 wt. % polyester fibers based on the total weight of the fibers and about 90 wt. % to about 99.5 wt. % cellulosic fibers based on the total weight of the fibers to provide a creped paper substrate having a stretch of at least 3% in the machine direction according to TAPPI test T494 and a dry tear strength in the machine direction according to TAPPI test T494 at least 30% greater than an otherwise identical creped paper substrate that does not contain the polyester fibers, wherein creping comprises creping using a creping blade;
treating the creped paper substrate with a latex composition so that the latex composition enters into the web of fibers;
providing a release layer on a first surface of the creped paper substrate;
providing an adhesive on a second surface of the creped paper substrate; and
rolling the creped paper product into the form of a roll.
13. A method according to claim 12 , wherein the creped paper product has a dry tear strength in the machine direction according to TAPPI test T414 at least 20% greater than an otherwise identical creped paper product that does not contain the polyester fibers.
14. A method according to claim 12 , wherein the creped paper product has a dry tear strength in the cross direction according to TAPPI test T414 at least 5% greater than an otherwise identical creped paper product that does not contain the polyester fibers.
15. A method according to claim 12 , wherein the polyester fibers have an average length of about 1 mm to about 100 mm.
16. A method according to claim 12 , wherein the polyester fibers have an average length of about 1 mm to about 8 mm.
17. A method according to claim 12 , wherein the web of fibers has a weight of about 10 lbs./3,000 ft. 2 to 90 lbs./3,000 ft. 2
18. A method according to claim 12 , wherein the web of fibers has a Canadian Standard Freeness value of between about 100 cm 3 and 850 cm 3 according to TAPPI test T 227.
19. A method according to claim 12 , comprising about 5 to about 100 crepe lines per lineal inch.
20. A method according to claim 12 , comprising about 20 to about 30 crepe lines per lineal inch.
21. A method according to claim 5 , wherein the creped paper product comprises greater than 100 to about 200 crepe lines per lineal inch.
22. A method according to claim 12 , wherein the creped paper substrate is impregnated with the latex composition.