Drawstring trash bag with thick hem region

Patent metadata

Field	Value
Publication number	US-9994365-B2
Application number	US-201414177389-A
Country	US
Kind code	B2
Filing date	Feb 11, 2014
Priority date	Feb 11, 2014
Publication date	Jun 12, 2018
Grant date	Jun 12, 2018

Abstract

The present invention is directed to a thermoplastic drawstring trash bag wherein the thermoplastic drawstring trash bag has an enhanced thickness region in one or more panels of the drawstring trash bag. The enhanced thickness region has an average thickness that is greater than the thickness of the remaining portions of the panels forming the drawstring trash bag. The enhanced thickness region is generally in the area of the hems and traverses the hem seals.

First claim

What is claimed is:

1. A drawstring bag comprising:
a first panel and a second panel, the first panel and second panel joined along a first side edge, a second side edge, and a bottom edge,
a top edge of the first panel folded upon itself to form a first hem along an upper opening of the drawstring bag with a first hem seal defining a bottom of the first hem, the first hem seal extending from the first side edge to the second side edge of the drawstring bag,
a first drawstring disposed and secured within the first hem,
a first enhanced thickness region defined in a thermoplastic film forming the first panel, the first enhanced thickness region extending from the first side edge to the second side edge and traversing the first hem seal,
an average thickness of the first enhanced thickness region is greater than an average thickness of the first panel excluding the first enhanced thickness region and less than an average thickness of the first drawstring,
wherein each of the average thicknesses is measured through a continuous single layer of the thermoplastic film from a first side to an opposing second side of the single layer of the thermoplastic film,

a transition zone between the first enhanced thickness region and the first panel excluding the first enhanced thickness region,
the transition zone having a gradual decrease in thickness from the first enhanced thickness region to the first panel excluding the first enhanced thickness region, and

the first panel excluding the first enhanced thickness region comprising thermoplastic film without a ribbed pattern.

2. The drawstring bag of claim 1 , further comprising:
the first enhanced thickness region extends from the upper opening of the drawstring bag to below the first hem seal.

3. The drawstring bag of claim 2 , further comprising:
the first enhanced thickness region extends from the upper opening of the drawstring bag to at least one inch below the first hem seal.

4. The drawstring bag of claim 3 , further comprising:
the first enhanced thickness region extends from the upper opening of the drawstring bag to between two inches and four inches below the first hem seal.

5. The drawstring bag of claim 1 , further comprising:
a top edge of the second panel folded upon itself to form a second hem along an upper opening of the drawstring bag with a second hem seal defining a bottom of the second hem, the second hem seal extending from the first side edge to the second side edge of the drawstring bag,
a second drawstring disposed and secured within the second hem,
a second enhanced thickness region defined in a thermoplastic film forming the second panel, the second enhanced thickness region extending from the first side edge to a second side edge and traversing the second hem seal, and
wherein an average thickness of the second enhanced thickness region measured across the thermoplastic film forming the second panel is greater than an average thickness of the second panel excluding the second enhanced thickness region.

6. The drawstring bag of claim 5 , further comprising:
the second enhanced thickness region extends from the top edge of the second panel to below the second hem seal.

7. The drawstring bag of claim 6 , further comprising:
the second enhanced thickness region extends from the top edge of the second panel to at least one inch below the second hem seal.

8. The drawstring bag of claim 7 , further comprising:
the second enhanced thickness region extends from the top edge of the second panel to between two inches and four inches below the second hem seal.

9. The drawstring bag of claim 5 , further comprising:
the second enhanced thickness region extends from the upper opening of the drawstring bag to below the second hem seal.

10. The drawstring bag of claim 9 , further comprising:
the second enhanced thickness region extends from the upper opening of the drawstring bag to at least one inch below the second hem seal.

11. The drawstring bag of claim 10 , further comprising:
the second enhanced thickness region extends from the upper opening of the drawstring bag to between two inches and four inches below the second hem seal.

12. A drawstring bag comprising:
a first panel and a second panel, the first panel and second panel joined along a first side edge, a second side edge, and a bottom edge,
a top edge of the first panel folded upon itself to form a first hem along an upper opening of the drawstring bag with a first hem seal defining a bottom of the first hem, the first hem seal extending from the first side edge to the second side edge of the drawstring bag,
a first drawstring disposed and secured within the first hem,
a thermoplastic film forming the first panel divided into an upper portion and a lower portion, the upper portion of the first panel comprising at least two layers of film,
an average thickness of each layer of the upper portion of the thermoplastic film of the first panel greater than an average thickness of the lower portion of the thermoplastic film of the first panel and less than an average thickness of the first drawstring,
wherein each of the average thicknesses is measured through a continuous single layer of the thermoplastic film from a first side to an opposing second side of the single layer of the thermoplastic film, and

the lower portion of the thermoplastic film devoid of a ribbed pattern.

13. The drawstring bag of claim 12 , further comprising:
the upper portion of the first panel extends below the first hem seal.

14. The drawstring bag of claim 13 , further comprising:
the upper portion of the first panel extends at least one inch below the first hem seal.

15. The drawstring bag of claim 14 , further comprising:
the upper portion of the first panel extends between two inches and four inches below the first hem seal.

Assignees

• Poly America Lp

Inventors

• Ross Michael A

Classifications

• B65F1/002

  with means for opening or closing of the receptacle · CPC title

• B65D33/28 Primary

  Strings or strip-like closures {, i.e. draw closures} · CPC title