TH11352A - Foldable containers and sheet materials for the production of this type of packaging? - Google Patents

Abstract

A cuboidal folding container of the same shape, with a sheet of material for manufacturing similar containers, is constrained by a section of the folding line. The folded corner flaps (4) contain a turn opening (7) and serve as a pouring mouth when the liquid contents are poured out of the folding container, ensuring that air can flow into the container simultaneously with the pouring out of the contents. The upper end wall (1) of the container is provided with a thin line (9) which is beveled away from the turn opening and causes the sheet of material to be noticeably flexible at the distal end of the turn opening in a raised position when the folding container is opened, facilitating the air inflow.

Claims (10)

1. Packaging containers of the type which are made of flexible material are provided with fold lines (8, 9,10) and which have an upper end wall (1) with two front corners (17) between which the folded flaps (4) are placed and an opening mark (5) which extends across the two corner flaps (4) and the adjacent parts of the end wall (1) in which at least one pair of separating fold lines extends across the upper end wall (1) from the area of the posterior end (18) of the opening mark (5) which is characterized by the fact that at least one pair of such separating fold lines, the first fold line (9) separates in the posterior direction (19) of the upper end wall (1). 2. Packaging container, according to claim 1, which shows the special characteristics that the top end wall (1), in addition to the first fold line (9) as previously stated, also consists of two other fold lines (8) located behind the end wall (1), with the first fold line (9) together covering the middle part, mostly the rhombus area of the end wall. 3. The packing container, according to claim 1 or 2, which is characterized by the following characteristics: the binding line (8, 9) extends symmetrically on both sides of the sealing strip (3) is centered on the upper end wall of the binding line (1), with the front end of this containing the opening mark (5). 4. Packaging containers, according to claim 3, which are characterized by the first fold line (9) extending mainly toward the center of the side wall of the top end wall (1) parallel to the sealing axis (3). 5. Packaging containers according to claim No. 4 which shows the special characteristics that the first fold line (9) has an angle (formula) between them of 60 degrees C and 160 degrees C. 6. Packaging containers according to claim No. 5 which shows the special characteristics that the angle (formula) between the first fold line (9) is equal to 120 degrees C. 7. Packaging containers according to one or more of the claims 2-6, which show the special characteristics that the angle (formula) between the other fold lines (8) is less than 90 degrees C. 8. Packaging containers according to claim No. 7 which shows the special characteristics that the angle (formula) between the other fold lines (8) is equal to 60 degrees C. 9. The material for the manufacture of the packaging container, according to the above claims, consists of at least one support piece and a waterproof thermoplastic piece connected to such support piece and the pattern of fold lines (8, 9, 10) for shaping the material into a packaging container. The upper end wall (1) and the folded corner flaps (4) contain opening marks (5) extending across all corner flaps (4) and the adjacent part of the said end wall (1), where an area of material corresponding to the upper end wall (1) includes at least one pair of fold lines (9) arranged at an angle (formula) between each other, in such a manner as in the finished container, such fold lines (9) separate from the area of the rear end (18) of the opening marks (5), which shows the special characteristic that in the finished container, at least one pair of such separating fold lines, the first fold line (9) separates in the direction of the rear part (19) of the said upper end wall (1). 10. The material according to claim 9 is characterized by the fact that, in addition to the first fold line (9) as described above, there are two other fold lines (8) installed on the posterior end wall (1) of the finished container, with the first fold line (9) together covering the central part, mostly the rhomboid area of the end wall.