Flexible polymer packaging with increased rigidity
A flexible container defining an interior volume and having one or more geometric deformations on one or more sidewalls is provided. The flexible container exhibits an increased rigidity due to the one or more geometric deformations such that the flexible container maintains a substantial portion of an internal volume and/or a height of the sidewall(s) of the flexible container when some or all of an article contained in the internal volume is dispensed. A method of forming a flexible container is also provided that includes forming a flexible container from a film or laminate, where one or more geometric deformations are formed on a wall of the flexible container.
1. A flexible container for dispensing a nonwoven article, comprising:
at least one sidewall and a bottom wall, defining an interior cavity configured to contain one or more nonwoven articles;
the flexible container having a first configuration containing one or more non-woven articles, and a second configuration wherein at least a portion of the one or more non-woven articles are removed from the interior cavity;
wherein the at least one sidewall contains at least one geometric deformation formed thereon, wherein the at least one geometric deformation has a height that is 5% to 99% of a height of the at least one sidewall, such that an interior volume of the cavity in the second configuration is 50% or more of an interior volume of the cavity in the first configuration, a height of the at least one sidewall in a second configuration is about 50% or more of a height of the at least one sidewall in the first configuration, or a combination thereof.
2. The flexible container of claim 1 , wherein the at least one geometric deformation comprises vertical lines, curved lines, triangular shapes, half-moon shapes, truss orientations, curved domes, flutes, circular shapes, letters, or combinations thereof.
3. The flexible container of claim 1 , wherein the flexible container is formed from a polymer film or a laminate, wherein the polymer film or laminate is generally impermeable to liquid, moisture, oxygen, light, or a combination thereof.
4. The flexible container of any one of claim 1 , wherein a portion of the at least one sidewall containing the at least one geometric deformation has a thickness that is 1.1 times a thickness of a portion of the at least one sidewall that does not have the at least one geometric deformation formed thereon.
5. The flexible container of claim 1 , wherein the at least one sidewall comprises at least a first sidewall and a second opposed sidewall, where both the first sidewall and the second opposed sidewall contain at least one geometric deformation formed thereon.
6. The flexible container of claim 1 , wherein further comprising a top portion, wherein the top portion is a top wall parallel to the bottom wall, or wherein the top portion is a resealable closure.
7. The flexible container of claim 1 , further comprising a top wall, wherein the top wall includes a resealable closure for covering an opening defined on the flexible container.
8. The flexible container of claim 1 , wherein the one or more nonwoven articles comprise a wet wipe, a facial tissue, or a rolled non-woven.
9. The flexible container of claim 1 , wherein a portion of the polymer film or laminate is sealed to a second portion of the film or laminate, to form one or more liquid impermeable seals.
10. A method of forming a flexible container for dispensing a nonwoven article, the method comprising,
forming the flexible container from a film or a laminate having at least one sidewall extending between a top wall and a bottom wall, defining an interior cavity configured to contain one or more nonwoven articles;
creating at least one geometric deformation on the at least one sidewall; and
sealing the flexible container;
wherein the at least one geometric deformation has a height that is 5% to 99% of a height of the at least one sidewall.
11. The method of claim 10 , wherein the at least one geometric deformation is formed by heating, pressure, ultrasonic energy, or a combination thereof.
12. The method of claim 10 , wherein the one or more geometric deformations are formed by heating, wherein a heating temperature is greater than or equal to a glass transition temperature and less than a melt temperature of the film or laminate.
13. The method of claim 10 , wherein the at least one geometric deformation is formed using a plate, stamp, or bar.
14. The method of claim 10 , wherein forming the container includes forming a bottom seal on a bottom wall of the container shape, wherein the at least one geometric deformations are formed after forming the bottom seal.
15. The method of one of claim 10 , wherein the at least one geometric deformation comprises vertical lines, curved lines, triangular shapes, half-moon shapes, truss orientations, curved domes, flutes, circular shapes, letters, or combinations thereof.
16. The method of one of claim 10 , wherein the film or laminate is a polymer film or laminate that is generally impermeable to liquid, moisture, oxygen, light, or a combination thereof.
17. The method of one of claim 10 , wherein a portion of the at least one sidewall containing the at least one geometric deformation has a thickness that is about 1.1 times a thickness of a portion of the at least one sidewall that does not have the at least one geometric deformation formed thereon.
18. The method of claim 10 , the method further forming one or more end seals, wherein the at least one geometric deformation is formed prior to forming at least one of the one or more end seals.
19. The method of claim 10 , wherein the bottom seal, one or more end seals, or a combination thereof, are liquid impermeable seals.
20. The method of claim 10 , further comprising placing one or more nonwoven articles in the flexible container prior to sealing the flexible container, wherein the one or more nonwoven articles comprise wet wipe.