Anti-light-leakage M-bottom waistline-free paper storage bag

Abstract

The utility model relates to the field of paper storage bags, and discloses an anti-light-leakage M-bottom waistline-free paper storage bag which comprises a body, the body comprises a bottom piece, a front piece, side pieces and a folded tongue piece, the side pieces on each side are mutually lapped to form side faces, the widths of the two lapped side pieces are different, and the outer wall of the folded tongue piece is lapped with the inner walls of the side faces; a first side crease line is arranged between the bottom piece and the tongue folding piece, a second side crease line is also arranged between the front piece and the side piece, the side line of the side piece and the extension line of the side line of the tongue folding piece are parallel to each other or form an included angle smaller than 90 degrees, the body extends outwards from the two crease lines to form a shading part, and when the storage bag is folded, the shading part is squeezed, so that the shading part is shaded. And the side line of the side piece and the side line of the tongue folding piece can be blocked when being approximately vertical or vertical. Through the arrangement of the shading component, the defect that light leaks when the paper bag is folded is overcome, and the problem that the bottom of a waist-line-free storage bag is insufficient in bearing capacity is completely solved.

Description

Technical Field

[0001] The utility model relates to the field of paper storage bags, in particular to a light leakage-proof M-bottom waistline-free paper storage bag. Background Art

[0002] In the prior art, the structure of a paper storage bag is generally that the side and the bottom film are bonded by glue. During transportation, the bottom film needs to be folded upward to form a waistline, which has two disadvantages: 1. Since the bottom film is folded upward, the entire page of the paper container will be blocked if there is an advertisement; 2. Since the bottom film has a connecting seam, the items in the storage bag have a certain weight. If the bottom film is damp, the viscosity of the glue will inevitably be affected, and the items will often fall out of the storage bag.

[0003] There are also some storage bags on the market with seamless connection between the negative film and the main film. Because the sides need to overlap with the folding tongue when folded, there is always light leakage in the corners of the overlap. This has always troubled companies that make paper storage bags and has not been able to meet the requirements of high-end customers. Summary of the invention

[0004] The utility model aims at the shortcomings of the prior art and provides a light-leakage-proof waistline-free paper storage bag which can satisfy the requirement of seamless connection between a bottom film and a front facade and can prevent light leakage after folding.

[0005] To solve the above technical problems, the utility model is solved by the following technical solutions:

[0006] A light-leakage-proof M-bottom waistline-free paper storage bag comprises a body, the body comprises a bottom sheet, and positive sheets are respectively extended from the sides of the bottom sheet, wherein each positive sheet is respectively extended from the left and right sides thereof with side sheets, the side sheets on each side are overlapped with each other to form side sheets, the two overlapped side sheets have different widths, the bottom sheet is respectively extended from the left and right sides thereof with folding tongue sheets, and the outer wall of the folding tongue sheet is overlapped with the inner wall of the side sheet;

[0007] A side crease line 1 is provided between the bottom sheet and the folding tongue sheet, and a side crease line 2 is also provided between the main sheet and the side sheet. The crease lines on both sides are in the same straight line. When the storage bag is in an unfolded state, the side line of the side sheet and the extension line of the side line of the folding tongue sheet are parallel to each other or form an angle less than 90 degrees. The main body extends outward from the two crease lines to form a shading component. The side lines of the shading component are respectively connected to the side lines of the side sheet and the side lines of the folding tongue sheet to form a line. When the storage bag is folded, the shading component is squeezed, which can block the corner gap when the side line of the side sheet and the side line of the folding tongue sheet are nearly vertical or vertical, so that the corner does not leak light.

[0008] Because when the storage bag is folded, this part will be deformed, which can just block the light from the inside and outside corners of the storage bag and solve the light leakage problem.

[0009] There are eight-shaped crease lines on both sides of the bottom sheet, and the eight-shaped crease lines and the side crease lines between the folding tongue pieces form a triangle. The tops of the two triangles are connected by long crease lines, and the long crease lines extend to both ends to the end of the folding tongue piece. By setting the crease lines of this structure, the bottom of the storage bag can be folded inward along the long crease lines, so that the storage bag has an M-shaped cross-section, achieving the effect of a paper storage bag without a waistline.

[0010] The wide side panels on the left and right sides have a middle crease line. The edge line of the narrow side panel can be selected to coincide with the middle crease line of the wide side panel. By setting the crease line of this structure, the side panel can be folded accordingly when the bottom is folded, and at the same time, the crease line on the side panel and the crease line extending from the crease line on the folding tongue panel can be overlapped, so that the paper storage bag can be completely folded in half.

[0011] The main film is provided with a rope threading hole, and the hand rope passes through the rope threading hole and is flatly adhered to the main film. The friction force is increased, and this connection method can enable the hand rope to bear a greater gravity load.

[0012] The front sheet is provided with an extension portion upward, and the extension portion can be folded inward through the bag opening fold line, and the rope threading port is arranged on the extension portion or the bag opening fold line. In this way, when the hand rope is arranged, the extension portion is folded inward, so that the eaves of the storage bag are beautiful.

[0013] The rope threading opening of the extension part has an arched cutting line, and a crease line is formed between the two end points of the cutting line. The crease line is used to connect the decorative component, so that after the extension part is folded, the decorative component can cover the perforated part of the hand rope.

[0014] The folding tongue piece is provided with a notch to prevent the top end of the folding tongue piece from tilting inward when the storage bag is folded.

[0015] The utility model adopts the above technical scheme, and solves the problem of light leakage when the paper bag is folded by setting the shading component, and completely solves the problem of insufficient bearing capacity of the bottom of the waistline-free storage bag, and has a significant technical effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the storage bag when it is unfolded;

[0018] Figure 3 yes Figure 1 A partial enlarged view of B in the middle;

[0019] Figure 4 yes Figure 2 A partial enlarged view of middle A;

[0020] Figure 5 It is a structural schematic diagram of the prior art. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. Figure 1-2 As shown, the light leakage-proof waistline-free paper storage bag comprises a body, which comprises a bottom film 1, and positive films 2 are respectively extended from the sides of the bottom film 1, wherein left and right sides of each positive film 2 are respectively extended with side films 3 of different widths on the left and right sides; the side films 3 on the same side of the left and right sides are overlapped to form the side of the paper storage bag, and the bottom film 1 is respectively extended with folding tongue pieces 4 on the left and right sides, and the outer wall of the folding tongue piece 4 is overlapped with the inner wall of the side surface;

[0022] like Figure 3 As shown, a side crease line 42 is provided between the bottom film 1 and the folding tongue piece 4, and a side crease line 22 is also provided between the main film 2 and the side film 3. The side crease line 42 and the side crease line 22 are in the same straight line, or the side crease line 22 is slightly offset outward. When the storage bag is in the unfolded state, the side panel edge line 31 of the side panel 3 and the extension line of the folding tongue panel edge line 43 of the folding tongue piece 4 are parallel to each other or form an angle less than 90 degrees. If there is an angle between the two, in one case, the side panel edge line 31 is inclined. When the storage bag is folded, the side panel edge line 31 can be made not to coincide with the side crease line 42 between the folding tongue piece 4 and the bottom film 1, and the side panel edge line 31 can be slightly higher than the side crease line 42. The purpose is to make the side panel edge line 31 located at the bottom of the storage bag after folding, and the side panel edge line 31 does not exceed the fold of the folding tongue piece, so that the side panel edge line 31 is hidden on the side of the bag bottom instead of being exposed at the bottom. The tongue piece edge line 43 of the tongue piece 4 and the side piece edge line 31 extend toward the side crease line direction to form an arc or triangular connecting line. A distance is always maintained between the connecting line and the side crease line 1 42 and the side crease line 2 22. The main body extends upward from the two crease lines to form a shading component 66, or the main body within the distance forms a shading component 66. The edge of the shading cloth can be an arc or composed of two or more line segments or arcs. The edge line of the shading component 66 is connected to the side piece edge line 31 and the tongue piece edge line 43 of the tongue piece 4 to form a line. When the storage bag is in the unfolded state, the extension line of the side panel edge line 31 and the folded tongue panel edge line 43 are parallel to each other or form an angle less than 90 degrees, and the extension line is extended in the direction of the side crease line 42 and the side crease line 22. The purpose is to ensure that the folded tongue panel 4 and the side panel 3 do not interfere with each other and avoid edge damage during the process of folding the storage bag to form the folded tongue panel edge line 43 and the side panel edge line 31 that are close to vertical or vertical.

[0023] like Figure 4As shown, when the storage bag is folded, when the side panel edge 31 and the folded tongue panel edge 43 are close to vertical or vertical, the shading component 66 is squeezed to block the corner gaps so that light does not leak into the corners. The gaps of the internal and external light in the paper storage bag can be blocked, thereby solving the light leakage problem.

[0024] Both sides of the bottom film 1 are provided with an eight-shaped crease line 48, and together with the side crease line 42 of the folding tongue piece 4, a triangular crease line is formed. The left and right sides of the triangular crease line are symmetrically arranged, and the top of the triangular crease line is connected by a long crease line 45. The long crease line 45 extends to both ends to the end of the folding tongue piece 4. By setting the crease line of this structure, it can be folded along the long crease line 45, so that the bottom of the storage bag can be folded inward so that the cross-section of the bag body is M-shaped, realizing the effect of a waistline-free paper storage bag.

[0025] The wide side panels 3 on the left and right sides have a middle crease line 39. After the storage bag is folded, the middle crease line 39 and the long crease line 45 are in the same vertical plane. By setting the middle crease line of this structure, the side panels can be folded accordingly when the bottom is folded. Furthermore, the middle crease line 39 on the side panels 3 can overlap with the long crease line 45 on the folding tongue panel 4, so that the paper storage bag can be folded in half.

[0026] A rope threading hole is provided on the main film 2, and the hand rope passes through the rope threading hole and is flatly adhered to the main film 2, thereby increasing the friction force. This connection method can enable the hand rope to withstand a greater gravity load.

[0027] The front sheet 2 is provided with an extension 366 upward, and the extension can be folded inward through the bag opening fold line 367. The rope threading port is arranged on the extension 366, and can also be arranged on the bag opening fold line 367. In this way, when the hand rope is arranged, the extension is folded inward to achieve the aesthetics of the eaves of the storage bag.

[0028] When the rope threading port is set on the extension part 366, the rope threading port can be optionally provided with an arched cutting line, and a crease line is formed between the two end points of the cutting line. The crease line is used to connect the decorative parts. In this way, after the extension part is folded, the decorative part in the window-opening state with one side open and the other side connected to the extension part through the crease line can cover the perforated part of the hand rope, hide the connection between the hand rope and the bag body, and improve the aesthetics of the bag body.

[0029] The folding tongue piece 4 is provided with a clearance notch 41, and the provision of the clearance notch can prevent the top end of the folding tongue piece 4 from tilting inward when the storage bag is folded.

[0030] In the description of the present utility model, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In short, the above is only a preferred embodiment of the present utility model, and all equivalent changes and modifications made according to the scope of the patent application of the present utility model should fall within the scope of the present utility model patent.

Claims

1. A light-leakage-proof M-bottom waist-less paper storage bag, comprising a body, the body comprising a bottom film (1), a front film (2) extending from the sides of the bottom film (1), wherein a side film (3) extending from the left and right sides of each front film (2), the side films (3) on each side overlap each other to form a side surface, the two overlapped side films (3) having different widths, the bottom film (1) extending from the left and right sides to the left and right sides to the outer wall of the folding film (4), the inner wall of the side surface overlaps the outer wall of the folding film (4); Features: A first side fold line (42) is provided between the bottom sheet (1) and the folding tongue sheet (4), and a second side fold line (22) is also provided between the front sheet (2) and the side sheet (3). When the storage bag is in an unfolded state, the side line of the side sheet (3) and the extended line of the side line of the folding tongue sheet (4) are parallel to each other or form an angle less than 90 degrees. The main body extends outward from the two fold lines to form a light shielding component (66). The side lines of the light shielding component (66) are respectively connected to the side lines of the side sheet (3) and the side lines of the folding tongue sheet (4) to form a line. When the storage bag is folded, the light shielding component (66) is squeezed and can shield the corner gap when the side line of the side sheet and the side line of the folding tongue sheet are nearly perpendicular or perpendicular, so that the corner does not leak light.

2. The light-leakage-proof M-bottomed paper storage bag without waistline according to claim 1, characterized in that: Both sides of the bottom sheet (1) are provided with an eight-shaped fold line, and the eight-shaped fold line and the side fold line (42) between the tongue flap (4) form a triangle, and the tops of the two triangles are connected by a long fold line (45), and the long fold line (45) extends to both ends to the end of the tongue flap (4).

3. The light-leakage-proof M-bottomed paper storage bag without waistline according to claim 1, characterized in that: The wide side panels (3) on the left and right sides have a central fold line.

4. The light-leakage-proof M-bottomed paper storage bag without waistline according to claim 1, characterized in that: A rope threading opening is provided on the main film (2), and a hand rope passes through the rope threading opening and is flatly adhered to the main film (2).

5. The light-leakage-proof M-bottomed paper storage bag without waistline according to claim 4, characterized in that: The main sheet (2) is provided with an extension portion (366) upwards, and the extension portion (366) can be folded inwards through a pocket opening fold line (367), and the rope threading opening is arranged on the extension portion or the pocket opening fold line (367).

6. The light-leakage-proof M-bottomed paper storage bag without waistline according to claim 5, characterized in that: The rope threading opening of the extension part (366) has an arched cutting line, and a fold line is formed between two end points of the cutting line, and the fold line is used to connect the decorative component.

7. A light-leakage-proof M-bottomed paper storage bag without waistline according to any one of claims 1 to 6, characterized in that: The folding tongue piece (4) is provided with a clearance notch (41).

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