DROP BAG Russian patent published in 2017 - IPC A47J31/06 

FIELD: packaging industry.

SUBSTANCE: invention refers to a drop bag that has a simple design with grip elements adhesively attached to the outer surfaces of the two opposite front sheets of the bag body, configured to extend the passage section of the body opening and ensure the stable shape of the said opening. For this purpose, the bag has a body made of a water permeable filter sheet and having an upper opening end, and grip elements made of a thin lamellated material and located on the outer surfaces of two opposite front sheets of the body. A grip element has an upper fixed part, adhesively attached to the body along its opening, a central part, located under the top fixed part in the center of the body in the direction of its width and which cannot be pulled away from the body, and a grip part, not being adhesively attached to the body. A pair of the first inclined folding lines and a pair of the second inclined folding lines are arranged on the upper fixed part. The lines are located at respective specified angles.

EFFECT: bag provides an extremely convenient opening when used due to the declared location of the folding lines, the bag is opened to form a polygon-shaped opening that provides an increase in the passage section, facilitating the pouring of hot water through the opening.

10 cl, 11 dwg