Single ply paper product, method for manufacturing, and article
View Patent ↗A single ply paper product including a paper substrate having a first surface and a second surface and including a web of fibers sufficiently refined to have a Canadian Standard Freeness value of greater than about 100 cm 3 according to TAPPI standard test T 227, and having a weight of between about 20 lbs./3,000 ft. 2 and about 45 lbs./3,000 ft. 2 ; and a fluorochemical in an amount of at least 800 parts per million.
1. A single ply paper product for use in forming a microwave popcorn bag with a plurality of folds, comprising:
a paper substrate comprising a web of fibers, a first surface and a second surface; a plurality of discrete films formed on the first surface, the films being formed at least some of the locations along which the single ply paper product is to be folded to form the microwave popcorn bag, with the films extending along and being formed on axes of the intended folds, and each film includes a material that is suitable to enhance grease hold out along the folds and is formed so as to prevent penetration of oil through the paper substrate along the folds during storage and use of the microwave popcorn bag,
wherein the films are non-adhesive films.
2. The single ply paper product of claim 1 , wherein the web of fibers is sufficiently refined to have a Canadian standard freeness value of greater than about 100 cm 3 according to TAPPI standard test T 227, and having a weight of about 20 lbs./3000 ft. 2 to about 45 lbs./3000 ft. 2 ; and
the web of fibers includes a sufficient amount of fluorochemical to provide grease hold out of less than 2.00% according to a crease testing.
3. An article, comprising:
(a) a single ply paper substrate comprising a web of fibers, a first surface and a second surface; the single ply paper substrate being folded along a plurality of folds; a plurality of discrete films formed on the first surface, the films being formed so as to extend along and over axes of at least some of the folds, and each film includes a material that is suitable to enhance grease hold out along the folds and is formed so as to prevent penetration of oil through the paper substrate along the folds during storage and use of the microwave popcorn bag; and
(b) a charge of oil and popcorn,
wherein the films are non-adhesive films.
4. The article of claim 3 , wherein the web of fibers is sufficiently refined to have a Canadian standard freeness value of greater than about 100 cm 3 according to TAPPI standard test T 227, and having a weight of about 20 lbs./3000 ft. 2 to about 45 lbs./3000 ft. 2 ; and
the web of fibers includes a sufficient amount of fluorochemical to provide grease hold out of less than 2.00% according to a crease testing.