Patent ID: 8940377
Filing Date: 2015-01-27
Classification: B29C,B29L,B30B,B31B,B31F,B32B,B65D,Y10T

Abstract:
1. A thermoplastic bag having improved strength comprising: a first thermoplastic bag having first and second opposing sidewalls joined together along a bottom edge and opposing side edges, the first thermoplastic bag including a bottom section extending from the bottom edge toward an opposing opening, a middle section extending from the bottom section toward the opening, and an upper section extending from the middle section toward the opening; a second thermoplastic bag positioned within the first thermoplastic bag, the second thermoplastic bag having third and fourth opposing sidewalls joined together along a bottom edge and opposing side edges, the second thermoplastic bag including a bottom section extending from the bottom edge toward an opposing opening, a middle section extending from the bottom section toward the opening, and an upper section extending from the middle section toward the opening; and a first plurality of non-continuous bonds securing the middle section of the first thermoplastic bag to the middle section of the second thermoplastic bag, the first plurality of non-continuous bonds comprise one of ultrasonic bonds, adhesive bonds, bonds formed from MD ring rolling, bonds formed from TD ring rolling, or bonds formed from SELFing; a second plurality of non-continuous bonds securing at least one of the respective upper and bottom sections of the first thermoplastic bag and the second thermoplastic bag together, wherein the second plurality of non-continuous bonds differs in bond type from the first plurality of non-continuous-bonds, the second plurality of non-continuous bonds comprise one of ultrasonic bonds, adhesive bonds, bonds formed from MD ring rolling, bonds formed from TD ring rolling, or bonds formed from SELFing; wherein at least one of the bottom section and the upper section of the first thermoplastic bag are devoid of non-continuous bonds securing the first thermoplastic bag and the second thermoplastic bag together; and wherein at least one of the bottom section and the upper section of the second thermoplastic bag are devoid of non-continuous bonds securing the first thermoplastic bag and the second thermoplastic bag together.