CN223836155U - A type of sealing paper bag - Google Patents

Abstract

The application relates to the technical field of packaging bags, in particular to a sealing paper bag, which comprises sheet paper, wherein the sheet paper is obtained by cutting a sheet paper roll along the length of the sheet paper roll, a raised sealing tongue is arranged at the upper cutting edge of the sheet paper, a notch is arranged at the lower cutting edge of the sheet paper, the notch of the last sheet paper is made of sealing tongue materials of the next sheet paper along the length direction of the sheet paper roll, the sheet paper is enclosed to form a paper bag body, the upper cutting edge of the sheet paper is enclosed to form an upper opening of the paper bag body, the sealing tongue is used for sealing the upper opening, the lower cutting edge of the sheet paper is enclosed to form a lower opening of the paper bag body, the lower opening of the paper bag body is folded and sealed to form a bag bottom of the paper bag body, and the notch is covered by a folding part of the bag bottom. According to the paper bag, the sealing tongue is arranged at the bag opening of the paper bag body, and the sealing tongue is used for replacing the sealing label, so that the bag opening is limited, the packing steps of workers are reduced, and the packing efficiency of the workers is improved.

Description

Sealing paper bag

Technical Field

The application relates to the technical field of packaging bags, in particular to a sealing paper bag.

Background

In the process of packaging products (clothes, coffee, tea, food and the like) by using the paper bags, after workers place the products inside the paper bags, sealing labels can be posted on the bag openings of the paper bags so as to seal the bag openings of the paper bags, and therefore the products in the paper bags are prevented from falling off, being mixed and the like.

In the prior art, a worker needs to hold the bag mouth of the paper bag with one hand and tear the sealing label with the other hand on the label machine, and adhere the sealing label to the bag side surfaces on two sides of the bag mouth, so as to finish the packing work of the product. However, the packaging steps of the paper bags are complicated, so that the working efficiency of workers is affected.

Disclosure of utility model

In order to facilitate workers to complete the packing work of products, the application provides a sealing paper bag.

The application provides a sealing paper bag, which adopts the following technical scheme:

A sealing paper bag comprises sheet paper, wherein the sheet paper is obtained by sequentially cutting a sheet paper roll along the length of the sheet paper, a raised sealing tongue is arranged on the upper cutting edge of the sheet paper, a notch is arranged on the lower cutting edge of the sheet paper, the notch of the last sheet paper is made of the sealing tongue material of the next sheet paper along the length direction of the sheet paper roll, the sheet paper is enclosed to form a paper bag body, the upper cutting edge of the sheet paper is enclosed to form an upper opening of the paper bag body, the sealing tongue is used for sealing the upper opening, the lower cutting edge of the sheet paper is enclosed to form a lower opening of the paper bag body, the lower opening of the paper bag body is folded and sealed to form a bag bottom of the paper bag body, the notch of the lower cutting edge of the sheet paper is positioned inside a folding part of the bag bottom, and the notch is covered by the folding part of the bag bottom.

According to the technical scheme, the sealing tongue is arranged at the bag opening of the paper bag body and is used for replacing the sealing label so as to limit the opening of the bag opening, so that the packing steps of workers are reduced, the packing efficiency of the workers is improved, and meanwhile, the positions of the sealing tongue and the notch are limited, so that the paper bag body can be formed by continuously cutting sheet paper rolls, the waste of paper is reduced, and the resources and the cost are saved.

Optionally, the paper bag further comprises a sealing assembly, wherein the sealing assembly is arranged on one side of the sealing tongue close to the upper opening, and sequentially comprises an adhesive piece and a protective piece along the direction far away from the sealing tongue, the protective piece is used for being separated from the adhesive piece, and the adhesive piece is used for being adhered with the bag body of the paper bag body to seal the bag opening.

Through adopting above-mentioned technical scheme, the staff separates protection piece and bonding piece, bonds bonding piece and bag body mutually again and seals the sack fixedly to the staff packing container bag of being convenient for.

Optionally, the sealing assembly includes a first self-adhesive layer disposed on the sealing tongue and a second self-adhesive layer disposed on the paper bag body, and the first self-adhesive layer and the second self-adhesive layer are adhered and fixed.

Through adopting above-mentioned technical scheme, first from viscose layer and second from viscose layer bonding fixedly need not to leave multilayer structures such as paper and label, realize more environmental protection's sealing effectively.

Optionally, the sealing tongue is further provided with an easy-tearing part, an avoiding distance is arranged between the easy-tearing part and the sealing assembly, and the sealing tongue is separated from the bag body of the paper bag body along the easy-tearing part.

Through adopting above-mentioned technical scheme, the user can more conveniently open the sack through the portion of easily tearing on the sealing tongue, and avoids tearing the container bag body for the container bag can reuse.

Optionally, the upper opening of the paper bag body is provided with a hand-held part, the hand-held part is provided with a hand-held through hole for hands to pass through for grabbing, and an avoidance distance is arranged between the sealing tongue and the hand-held part.

By adopting the technical scheme, the paper bag further comprises a portable part, so that a user can conveniently take the paper bag.

Optionally, a decorative surface is arranged on one side of the sealing tongue far away from the sealing assembly, and the decorative surface is used for bearing product and/or brand information.

By adopting the technical scheme, the decoration surface bears the product and/or brand information, so that a user can know the information of the merchant and the product conveniently.

Alternatively, the shape of the sealing tongue may be any one of rectangle, semi-ellipse, semi-circle, and the like.

By adopting the technical scheme, the sealing tongue can be one of rectangular, semi-elliptical and semicircular patterns so as to adapt to different use scenes.

Optionally, the sheet paper is sequentially provided with a plurality of main side crease lines along the length direction thereof, the main side crease lines extend along the width direction of the sheet paper, each main side crease line is sequentially folded to divide the sheet paper into a connecting part, a first side bag part, a front bag part, a second side bag part and a rear bag part, and the connecting part is adhered to the rear bag part to enclose to obtain the paper bag body;

The paper bag comprises a paper bag body, wherein the paper bag body is arranged on the paper bag body, the paper bag body is provided with a lower cutting edge, a lower cutting edge is arranged on the paper bag body, a first crease line is arranged above the lower cutting edge, the first crease line extends along the length direction of the paper sheet, the lower cutting edge of the paper sheet is folded into a bag bottom along the first crease line, and the bag bottom is divided into a first side bag bottom, a front bag bottom, a second side bag bottom and a rear bag bottom corresponding to the paper bag body respectively;

Along the length direction of the sheet paper, the two sides of the bottom of the front bag and the bottom of the rear bag are respectively provided with a second crease line, the main side crease line and the lower cutting edge form a triangular folding part, the second crease line, the first crease line and the lower cutting edge form a trapezoid folding part, the triangular folding parts are arranged on the two sides of the trapezoid folding part, and based on the triangular folding parts, the bottom of the first side bag, the bottom of the front bag, the bottom of the second side bag and the bottom of the rear bag are oppositely folded and stuck.

By adopting the technical scheme, the paper bag body is a square bottom bag, so that workers can fold and bond the sheet paper into the paper bag body conveniently.

Optionally, the sealing tongue is arranged on the rear bag part, the sealing tongue is used for being bonded with the front bag part, and the notch is arranged on the bottom of the rear bag.

By adopting the technical scheme, the sealing tongue is arranged at the front bag part, so that the front bag part and the side bag part which are arranged in opposite directions are bonded and fixed by the sealing tongue, thereby being convenient for workers to pack paper bags and reducing the opening width of the bag mouth of the paper bag body.

Optionally, the notch is disposed on the triangular folded portion at the bottom of the rear bag, and the trapezoidal folded portion at the bottom of the rear bag covers the notch.

By adopting the technical scheme, the notch is arranged on the triangular folding part and is arranged between the trapezoidal folding part and the bottom of the first side bag, so that the bonding strength of the bag bottom of the paper bag body is improved, the influence of the notch on the bearing capacity of the bag bottom is reduced, and the bearing capacity of the bag bottom is improved.

Optionally, the notch is disposed on the trapezoid folding portion at the bottom of the rear bag, and the trapezoid folding portion at the bottom of the front bag covers the notch.

By adopting the technical scheme, the notch is arranged on the trapezoid folding part at the bottom of the rear bag, so that the sealing tongue is positioned in the middle area of the rear bag, and the sealing tongue is conveniently bonded and fixed by workers in the way that the front bag part and the rear bag part are oppositely arranged, and the opening range of the bag opening of the paper bag body is limited.

Optionally, the sealing tongue is arranged on the first bag side part and/or the second bag side part, the sealing tongue is used for being adhered and fixed with the front bag part or the rear bag part, the notch is arranged on the first side bag bottom and/or the second side bag bottom, and the triangular folding part covers the notch.

By adopting the technical scheme, the notch is arranged on the bottom of the first side bag and the bottom of the second side bag, so that the sealing tongues are positioned on the first side bag body part and the second side bag body part at two sides of the paper bag body, when the sealing tongues are adhered and fixed with the front bag part or the rear bag part, the purpose of limiting the opening width of the bag opening of the paper bag body is achieved, and meanwhile, a user can open the bag opening of the paper bag body in a small width to observe the product state in the paper bag body.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the sealing tongue is arranged at the bag opening of the paper bag body and is used for replacing the sealing label so as to limit the opening of the bag opening and prevent articles in the bag from falling off, so that the packing steps of workers are reduced, the packing efficiency of the workers is improved, and meanwhile, the positions of the sealing tongue and the notch are limited, so that the paper bag body can be formed by continuously cutting sheet paper rolls, the waste of paper is reduced, and the resources and the cost are saved;

2. The sealing tongue is arranged at the front bag part, so that the front bag part and the side bag part which are arranged in opposite directions are adhered and fixed by the sealing tongue, thereby being convenient for workers to pack paper bags and reducing the opening width of the bag mouth of the paper bag body;

3. The notch is arranged on the triangular folding part and between the trapezoidal folding part and the bottom of the first side bag, so that the bonding strength of the bag bottom of the paper bag body is improved, the influence of the notch on the carrying capacity of the bag bottom is reduced, and the carrying capacity of the bag bottom is improved.

Drawings

Fig. 1 is a schematic view showing the structure of the sealing paper bag in example 1.

Fig. 2 is a plan view of the paper bag body in example 1.

Fig. 3 is a schematic view showing a cutting manner of the sheet-like paper in example 1.

Fig. 4 is a schematic view showing the crease position of the sheet-like paper in example 1.

Fig. 5 is a schematic view showing the crease position of the sheet-like paper in example 1.

Fig. 6 is a schematic view showing a first step of folding and forming the sheet-like paper in example 1.

Fig. 7 is a schematic view showing a second step of folding and forming the sheet-like paper in example 1.

Fig. 8 is a schematic view showing a third step of folding and forming the sheet-like paper in example 1.

Fig. 9 is a schematic view showing a fourth step of folding and forming the sheet-like paper in example 1.

Fig. 10 is a schematic view showing the fitting relationship of the sealing tongue and the sealing assembly in embodiment 1.

Fig. 11 is a schematic view showing the structure of the closure assembly in embodiment 1.

Fig. 12 is a schematic view showing the shape of the sealing tongue in example 2.

Fig. 13 is a schematic view showing a second step of folding and forming the sheet-like paper in example 2.

Fig. 14 is a schematic view showing the position of the sealing tongue in example 2.

Fig. 15 is a schematic view showing a second step of folding and forming the sheet-like paper in example 4.

Fig. 16 is a schematic view showing the position of the sealing tongue in example 4.

Fig. 17 is a schematic view showing the structure of the sealing tongue in example 5.

Fig. 18 is a schematic view showing the structure of the sealing tongue in example 6.

Fig. 19 is a schematic view showing the closure assembly in example 7.

The reference numerals indicate 1, a paper bag body, 11, a bag body, 12, a bag bottom, 2, a portable part, 3, a portable rope, 4, fixed paper, 5, sheet paper, 51, a sealing tongue, 52, a notch, 53, a connecting part, 54, a first side bag part, 541, a first side bag body part, 542, a first side bag bottom, 55, a front bag part, 551, a front bag body part, 552, a front bag bottom, 56, a second side bag part, 561, a second side bag body part, 562, a second side bag bottom, 57, a rear bag part, 571, a rear bag body part, 572, a rear bag bottom, 58, a trapezoid folding part, 59, a triangle folding part, 61, an upper cutting edge, 62, a lower cutting edge, 63, a main side crease line, 64, an inner fold line, 65, a first crease line, 66, a second crease line, 67, a third crease line, 7, a sealing assembly, 71, an adhesive, 72, a protector, 73, a first self-adhesive layer, 74, a second self-adhesive layer, 8, 9, a handle 91 and a tearing edge.

Detailed Description

The application is described in further detail below with reference to fig. 1-19.

Example 1

The embodiment of the application discloses a sealing paper bag. Referring to fig. 1, the sealed paper bag includes a paper bag body 1 and a handle portion 2, the handle portion 2 is disposed at an upper opening of the paper bag body 1, and the handle portion 2 has a handle through hole through which a hand portion passes for gripping.

Referring to fig. 1 and 2, the paper bag body 1 includes a bag body 11 and a bag bottom 12 integrally formed. The bag body 11 includes a front bag body 551 and a rear bag body 571 which are disposed opposite to each other, a first side bag body 541 and a second side bag body 561 which are disposed opposite to each other, and the first side bag body, the front bag body 551, the second bag body 11 and the rear bag bottom 572 sequentially enclose the bag body 11 of the paper bag body 1. The bag bottom 12 is divided into a first side bag bottom 542, a front bag bottom 552, a second side bag bottom 562, and a rear bag bottom 572 corresponding to the bag body 11. In this embodiment, the paper bag body is a square bottom bag, while in other embodiments, the paper bag body may be a pointed bottom bag.

Referring to fig. 1, two sets of the handle portions 2 are provided, and the two sets of the handle portions 2 are fixedly provided on the front and rear bag body portions 551 and 571, respectively. Taking the hand-held portion 2 fixed to the front bag body 551 as an example, the structure of the hand-held portion 2 will be explained. In this embodiment, the carrying portion 2 includes a carrying string 3 and a fixing paper 4, the fixing paper 4 is adhered to and fixed to the bag body 11, both ends of the carrying string 3 are disposed between the front bag body 551 and the fixing paper 4, and the carrying string 3 is adhered to and fixed to the front bag body 551 and the fixing paper 4. In this embodiment, the fixing paper 4 and the carrying string 3 are fixed to the inner side wall of the front body 551, and in other embodiments, the fixing paper 4 and the carrying bag may be fixed to the outer side wall of the front body 551.

The carrying rope 3 may be in the form of a round handle, a square handle or the like, in this embodiment, the carrying rope 3 is in the form of a round handle, in other embodiments, the carrying rope 3 may be in the form of a square handle, and in other embodiments, the paper bag may not be provided with the carrying rope 3 and the fixing paper 4.

Referring to fig. 1 to 3, the paper bag body 1 is formed by folding and bonding sheet-like paper 5. The sheet-like paper 5 is obtained by cutting a sheet-like paper roll along its length, and in this embodiment, the conveying direction of the sheet-like paper 5 is from bottom to top. The upper cutting edge 61 of the sheet-like paper 5 is provided with a raised sealing tongue 51, the lower cutting edge 62 of the sheet-like paper 5 is provided with a notch 52, and along the length direction of the sheet-like paper roll, the notch 52 of the upper sheet-like paper 5 is made of the sealing tongue 51 of the next sheet-like paper 5, so that the sheet-like paper roll does not generate redundant waste, paper resources are saved, and the manufacturing cost of paper bags is saved.

The upper cut edge 61 of the sheet-like paper 5 is enclosed to form an upper opening (also referred to as a bag mouth) of the paper bag body 1, and the sealing tongue 51 is used for sealing the upper opening, and at this time, an avoiding distance is provided between the sealing tongue 51 and the carrying part 2 so as to facilitate folding of the sealing tongue 51. The lower cutting edge 62 of the piece-shaped paper 5 is enclosed to form the lower opening of the paper bag body 1, the lower opening of the paper bag body 1 is folded and closed to form the bag bottom 12 of the paper bag body 1, the notch 52 of the lower cutting edge 62 of the piece-shaped paper 5 is positioned inside the folded part of the bag bottom 12, and the notch 52 is covered by the folded part of the bag bottom 12.

Referring to fig. 4, the sheet 5 is provided with a plurality of main side crease lines 63 in sequence along the length direction thereof, the main side crease lines 63 extend in the width direction of the sheet 5, and folding each main side crease line 63 in sequence divides the sheet 5 into a connecting portion 53, a first side pocket portion 54, a front pocket portion 55, a second side pocket portion 56 and a rear pocket portion 57, and the connecting portion 53 is adhered to the rear pocket portion 57 to enclose the resulting paper bag body 1.

Referring to fig. 4 and 5, an inner fold line 64 is provided in the intermediate region of the first side pocket 54 and the second side pocket 56, and the inner fold line 64 is provided along the width direction of the sheet-like paper 5. The first side pocket 54 and the second side pocket 56 are folded along the inner fold line 64 such that the first side pocket 54, the second side pocket 56 are stacked between the front pocket 55 and the side pocket.

Referring to fig. 4, the sheet 5 is provided with a horizontal first crease line 65, and the first crease line 65 extends in the longitudinal direction of the sheet 5. Along the first crease line 65, the area of the sheet-like paper 5 near the lower cut edge 62 is folded into bag bottoms which are divided into a first side bag bottom 542, a front bag bottom 552, a second side bag bottom 562 and a rear bag bottom 572, respectively, corresponding to the paper bag body 1. Along the first crease line 65, the area of the sheet-like paper 5 near the upper cut edge 61 is folded into a bag body 11, and the bag body 11 is divided into a first side bag body 541, a front bag body 551, a second side bag body 561, and a rear bag body 571, respectively, with respect to the paper bag body 1.

Referring to fig. 5, along the longitudinal direction of the sheet 5, the front bag bottom 552 and the rear bag bottom 572 are provided with second crease lines 66, respectively, on both sides thereof, the second crease lines 66, the main side crease lines 63, and the lower trimming edges 62 enclose triangular folding portions 59, the second crease lines 66, the first crease lines 65, and the lower trimming edges 62 enclose trapezoidal folding portions 58, the triangular folding portions 59 are provided on both sides of the trapezoidal folding portions 58, and the first side bag bottom 542, the front bag portion 55, the second side bag bottom 562, and the rear bag bottom 572 are folded and adhered with respect to each other based on the triangular folding portions.

Referring to fig. 5, the sheet 5 is provided with third crease lines 67 in sequence, and the third crease lines 67 extend in the longitudinal direction of the sheet 5. The third crease line 67 is disposed on a side of the first crease line 65 near the upper cutting edge 61. The intersection of the second crease lines 66 on the front pocket bottom 552 and the side pocket bottom is set at the third crease line 67. The third crease line 67 is used to fold the front pocket 55 or the rear pocket 57 so that the bottom 12 of the paper bag body 1 is arranged parallel to the bag body 11.

It is noted that the main side crease lines 63, the inner crease lines 64, the first crease lines 65, the second crease lines 66 and the third crease lines 67 on the sheet 5 can be formed by mechanical means punching, followed by folding and bonding the sheet 5 along several crease lines into the bag body 1. In order to show the folding and bonding modes of the paper bag body 1, different areas of the bag bottom 12 in fig. 5 are filled with different filling blocks to show distinction.

In the prior art, there are several ways of folding and bonding the sheet-like paper 5 into the paper bag body 1, and the present application does not limit the specific folding way of the sheet-like paper 5. The present embodiment discloses a folding and adhesive fixing manner of the sheet-like paper 5, so that those skilled in the art can understand the scheme of the present application.

Referring to fig. 7, the connecting portion of the sheet-like paper 5 is bonded and fixed to the rear pocket 57 to form a sheet-like cylindrical structure, and the rear pocket 57 covers the front pocket 55 in the view of the drawings of the present specification. The sheet-like paper 5 is then folded inwardly along the second crease line 66, at which point the rear pouch bottom 572 is located on the side of the third crease line 67 adjacent the upper cut edge 61 and the front pouch bottom 552 is located on the side of the third crease line 67 remote from the upper cut edge 61.

Referring to fig. 8, the rear bag bottom 572 is folded toward the first side bag bottom 542 along the first crease line 65, the triangular folded portions 59 on both sides of the rear bag bottom 572 are respectively bonded to the first side bag bottom 542 and the second side bag bottom 562, and the triangular folded portions 59 are bonded and fixed to the first side bag bottom 542 and the second side bag bottom 562.

Referring to fig. 9, the front bag bottom 552 is folded toward the rear bag bottom 572 along the first crease line 65, the triangular folded portions 59 on both sides of the front bag bottom 552 are respectively bonded to the first side bag bottom 542 and the second side bag bottom 562, and the triangular folded portions 59 are bonded and fixed to the first side bag bottom 542 and the second side bag bottom 562. The trapezoidal folded portion 58 of the front pocket bottom 552 is bonded to and secured by the trapezoidal triangular folded portion 59 of the rear pocket bottom 572.

Referring to fig. 1 and 9, after the sheet-like paper 5 is folded and bonded, the sheet-like paper 5 is opened from the inside to form the paper bag body 1.

Referring to fig. 5 to 9, in the present embodiment, the notch 52 is provided in the rear bag bottom 572, and the sealing tongue 51 is provided in the rear bag body 571, so that when the sheet-like paper 5 is folded and bonded into the paper bag body 1, the sealing tongue 51 is bonded and fixed to the front bag body 551. Namely, the front and rear bag body 551, 571 are limited in position by the sealing tongue 51 to limit the mouth of the paper bag body 1.

Referring to fig. 5 to 9, specifically, in the present embodiment, the notch 52 is provided on the trapezoidal folded portion 58 of the rear bag bottom 572, and when the front bag bottom 552 is folded and adhesively secured to the rear bag bottom 572, the trapezoidal folded portion 58 of the front bag bottom 552 covers the notch 52 on the rear bag bottom 572.

Referring to fig. 1 and 10, the sealing tongue 51 is provided in the middle region of the rear bag body 571, and a clearance gap is provided between the sealing tongue 51 and the carrying string 3 so as to facilitate folding over of the sealing tongue 51.

It should be noted that the paper bag folding manner in this embodiment is the biggest difference from the paper bag folding manner in the prior art in that after the bottom portion of the sheet-like paper 5 is folded and adhered and fixed, the front bag bottom portion 552 or the side bag bottom portion covers the notch 52, so that the bag bottom 12 of the paper bag has a continuous planar structure, so as to improve the carrying capacity of the bag bottom 12.

Referring to fig. 10 and 11, the paper bag further includes a sealing assembly 7, the sealing assembly 7 is adhered to the sealing tongue 51, and the sealing assembly 7 is used for adhering and sealing the bag mouth with the bag body 11 so as to limit the opening of the bag mouth of the paper bag body 1.

Referring to fig. 11, the closure assembly 7 includes an adhesive 71 and a protector 72 in this order along a direction away from the sealing tongue 51, the protector 72 being separated from the adhesive 71, and the adhesive 71 being adhered to the bag body 11 to seal the mouth. A tear-off feature is provided between the outer edge of the protector 72 and the outer edge of the adhesive member 71 to facilitate separation of the protector 72 from the adhesive member 71 by a worker.

In the present embodiment, the adhesive 71 is an adhesive layer such as hot melt adhesive or water glue, and the protecting member 72 is release paper, non-woven fabric, plastic film, or the like. In this embodiment, the protector 72 is made of release paper, and the worker wraps the product with the paper bag, tears the release paper, and then bonds the adhesive layer with the bag body 11 to seal the bag mouth, thereby completing the sealing operation of the paper bag.

Referring to fig. 11, flap 51 is spaced from a decorative surface 8 on the side of closure assembly 7, decorative surface 8 being used to carry product and/or branding information. In this embodiment, the product information or other patterns are printed directly on the decorative surface 8 of the sealing tongue 51, and the pattern information on the decorative surface 8 can cooperate with the patterns of the front bag body 551. In other embodiments, the decorative surface 8 may be bonded by a sticker printed with product, branding information/graphics.

Referring to fig. 12, the shape of the sealing tongue 51 may be any one of rectangular, semi-elliptical, semicircular, and the like. In the present embodiment, the shape of the sealing tongue 51 is rectangular. While in other embodiments the shape of the sealing tongue 51 may be semi-elliptical, semi-circular, etc.

The implementation principle of the sealing paper bag provided by the embodiment of the application is as follows:

Referring to fig. 1 and 9, the sealing tongue 51 is arranged at the bag mouth of the paper bag body 1, and the sealing tongue 51 is used for replacing the sealing label to limit the opening of the bag mouth, so that the packing steps of workers are reduced, and the packing efficiency of the workers is improved. Meanwhile, the application limits the positions of the sealing tongue 51 and the notch 52, so that the sheet-shaped paper 5 folded into the paper bag body 1 can be continuously cut by a sheet-shaped paper roll, thereby reducing the waste of paper and saving resources and cost.

Referring to fig. 5 and 9, the notch 52 is provided on the trapezoid folding portion 58 of the rear bag bottom 572 so that the sealing tongue 51 is located at the middle area of the rear bag body 571, so that the operator can adhere the sealing tongue 51 to the front bag body 551, which is provided opposite to each other, to seal the bag mouth, so as to limit the opening width of the bag mouth.

In this embodiment, the number of sealing tongues 51 is one, while in other embodiments, the number of sealing tongues 51 may be two, three, etc.

Example 2

This embodiment 2 differs from embodiment 1 in that the shape of the sealing tongue 51 is different.

Referring to fig. c, the sealing tongue 51 and the notch 52 are semi-elliptical in shape.

Referring to fig. d, the sealing tongue 51 and the notch 52 are semicircular in shape.

Example 3

This embodiment 3 differs from embodiment 1 in that the notch 52 is provided at a different position in the rear bag bottom 572.

Referring to fig. 13 and 14, in the present embodiment, the notch 52 is provided at the triangular folded portion 59, and the trapezoidal folded portion 58 covers the notch 52.

The implementation principle of the sealing paper bag provided by the embodiment of the application is as follows:

Referring to fig. 13 and 14, the notch 52 is provided in the triangular folded portion 59, and when the rear bag bottom 572 is adhesively secured to the first side bag bottom 542, the notch 52 is provided between the trapezoidal folded portion 58 of the rear bag bottom 572 and the first side bag bottom 542, thereby improving the adhesive strength of the rear bag bottom 572 and the first side bag bottom 542, reducing the influence of the notch 52 on the carrying capacity of the bag bottom 12, and improving the carrying capacity of the bag bottom 12.

Example 4

This embodiment 4 differs from embodiment 1 in that the notch 52 is provided at a different position in the bag bottom 12.

Referring to fig. 15 and 16, in the present embodiment, the sealing tongue 51 is provided on the first side body 541 and the second side body 561, and the notch 52 is provided on the first side bottom 542 and the second side bottom 562.

The implementation principle of the sealing paper bag provided by the embodiment of the application is as follows:

Referring to fig. 15 and 16, the notch 52 is provided on the first side bottom 542 and the second side bottom 562 so that the sealing tongue 51 is located on the first side body 541 and the second side body 561 on both sides of the paper bag body 1, and when the sealing tongue 51 is adhered to the front body 551 to seal the opening, the purpose of limiting the opening width of the opening of the paper bag body 1 is achieved, and at the same time, the user can open the opening of the paper bag body 1 by a small margin to observe the product state in the paper bag body 1.

Example 5

This embodiment 5 differs from embodiment 1 in that:

referring to fig. 17, the sealing tongue 51 is further provided with a tearable portion 9, the tearable portion 9 is disposed on a side of the sealing tongue 51 close to the rear bag body 571, and an avoiding distance is provided between the tearable portion 9 and the sealing assembly 7.

Referring to fig. 17, after the sealing member 7 is bonded to the front body 551 to seal the mouth, the sealing tongue 51 is separated from the rear body 571 along the tearable portion 9, and the sealing tongue 51 is bonded to the front body 551. That is, the user can more conveniently open the bag mouth through the easy-tearing part 9 on the sealing tongue 51, and avoid tearing the paper bag body 1, so that the paper bag can be reused.

In this embodiment, the easy-to-tear portion 9 is provided with a tear line to facilitate the separation of the sealing tongue 5 from the rear bag body 571 by the user.

Example 6

This embodiment 6 differs from embodiment 5 in that the structure of the tearable portion 9 is different.

Referring to fig. 18, in the present embodiment, along the direction away from the rear bag body 571, two sides of the easy-to-tear portion 9 are provided with tearing lines, one end of the easy-to-tear portion 9 is provided with a handle 91 protruding from the main body of the sealing tongue 51, and the handle 91 is used for being pinched by a user so as to separate the sealing tongue 51 from the rear bag body 571.

Example 7

This embodiment 7 differs from embodiment 1 in that the structure of the closure assembly 7 is different.

Referring to fig. 19, in the present embodiment, the closure assembly 7 includes a first self-adhesive layer 73 provided on the closure tongue 51 and a second self-adhesive layer 74 provided on the front bag body 551. The first self-adhesive layer 73 and the second self-adhesive layer 74 may be cold seal adhesives or pressure sensitive adhesives, and only when the first self-adhesive layer 73 contacts the second self-adhesive layer 74, adhesion occurs.

Normally, the first self-adhesive layer 73 and the second self-adhesive layer 74 are not adhesive. The first self-adhesive layer 73 is in contact with the second self-adhesive layer 74 under a certain pressure, and the first self-adhesive layer 73 and the second self-adhesive layer 74 have strong adhesion, so that the first self-adhesive layer 73 and the second self-adhesive layer 74 are adhered together to realize the sealing effect.

The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.

Claims (10)

1. A sealing paper bag is characterized by comprising sheet-like paper (5), wherein the sheet-like paper (5) is obtained by sequentially cutting a sheet-like paper roll along the length of the sheet-like paper, an upper cutting edge (61) of the sheet-like paper (5) is provided with a raised sealing tongue (51), a lower cutting edge (62) of the sheet-like paper (5) is provided with a notch (52), along the length direction of the sheet-like paper (5) roll, the notch (52) of the upper sheet-like paper (5) is made of the sealing tongue (51) of the next sheet-like paper (5), the sheet-like paper (5) is enclosed to form a paper bag body (1), an upper opening of the paper bag body (1) is formed by enclosing an upper cutting edge (61) of the sheet-like paper (5), the sealing tongue (51) is used for sealing the upper opening, the lower cutting edge (62) of the sheet-like paper (5) is enclosed to form a lower opening of the paper bag body (1), and the lower opening of the paper bag body (1) is formed by enclosing the lower opening of the paper bag body (1) to form a lower opening of the paper bag (12) and the lower opening of the paper bag body (1) is folded to cover the notch (12) of the paper bag (12).

2. The sealed paper bag according to claim 1, further comprising a sealing assembly (7), wherein the sealing assembly (7) is arranged on one side, close to the upper opening, of the sealing tongue (51), the sealing assembly (7) sequentially comprises an adhesive piece (71) and a protective piece (72) along the direction away from the sealing tongue (51), the protective piece (72) is used for being separated from the adhesive piece (71), the adhesive piece (71) is used for being adhered to a bag body (11) of the paper bag body (1) to seal a bag opening, or the sealing assembly (7) comprises a first self-adhesive layer (73) arranged on the sealing tongue (51) and a second self-adhesive layer (74) arranged on the paper bag body (1), and the first self-adhesive layer (73) is adhered and fixed with the second self-adhesive layer (74).

3. The sealed paper bag according to claim 2, wherein the sealing tongue (51) is further provided with a tearing part (9), an avoiding distance is arranged between the tearing part (9) and the sealing assembly (7), and the sealing tongue (51) is separated from the bag body (11) of the paper bag body (1) along the tearing part (9).

4. The sealed paper bag according to claim 2, wherein the side of the sealing tongue (51) far away from the sealing assembly (7) is provided with a decorative surface (8), and the decorative surface (8) is used for bearing product and/or brand information.

5. The sealed paper bag according to claim 1, wherein the shape of the sealing tongue (51) is any one of rectangle, semi-ellipse, and semicircle.

6. The sealed paper bag according to claim 1, wherein the sheet-like paper (5) is provided with a plurality of main side crease lines (63) in sequence along the length direction thereof, the main side crease lines (63) extend along the width direction of the sheet-like paper (5), each main side crease line (63) is folded in sequence to divide the sheet-like paper (5) into a connecting portion (53), a first side pocket portion (54), a front pocket portion (55), a second side pocket portion (56) and a rear pocket portion (57), and the connecting portion (53) is adhered to the rear pocket portion (57) to enclose to obtain the paper bag body (1);

The sheet paper (5) is provided with a first crease line (65) above the lower cutting edge (62), the first crease line (65) extends along the length direction of the sheet paper (5), the lower cutting edge (62) area of the sheet paper (5) is folded to be a bag bottom along the first crease line (65), and the bag bottom is divided into a first side bag bottom (542), a front bag bottom (552), a second side bag bottom (562) and a rear bag bottom (572) corresponding to the paper bag body (1) respectively;

Along the length direction of the sheet paper (5), the two sides of the front bag bottom (552) and the rear bag bottom (572) are respectively provided with a second crease line (66), the main side crease line (63) and the lower trimming edge (62) enclose a triangular folding part (59), the second crease line (66), the first crease line and the lower trimming edge (62) enclose a trapezoidal folding part (58), the triangular folding part (59) is arranged on the two sides of the trapezoidal folding part (58), and based on the triangular folding part (59), the first side bag bottom (542), the front bag bottom (55), the second side bag bottom (562) and the rear bag bottom (572) are oppositely folded and pasted.

7. The sealed paper bag according to claim 6, wherein the sealing tongue (51) is provided on the rear bag portion (57), the sealing tongue (51) is for adhering to the front bag portion (55), and the notch (52) is provided on the rear bag bottom portion (572).

8. The sealed paper bag according to claim 7, wherein the notch (52) is provided in the triangular folded portion (59) of the rear bag bottom (572), and the trapezoidal folded portion (58) of the rear bag bottom (572) covers the notch (52).

9. The sealed paper bag according to claim 7, wherein the notch (52) is provided in the trapezoid folding portion (58) of the rear bag bottom (572), and the trapezoid folding portion (58) of the front bag bottom (552) covers the notch (52).

10. The sealed paper bag according to claim 6, wherein the sealing tongue (51) is disposed on the first bag side portion and/or the second bag side portion, the sealing tongue (51) is used for being adhered and fixed with the front bag portion (55) or the rear bag portion (57), the notch (52) is disposed on the first side bag bottom portion (542) and/or the second side bag bottom portion (562), and the triangular folded portion (59) covers the notch (52).