Manufacturing method of packaging bag with easy-to-tear opening

Abstract

The invention discloses a manufacturing method of a packaging bag with an easy-to-tear opening, the packaging bag comprises a paper bag structure, the paper bag structure comprises a bag body, a lower folding tongue strip is arranged above the bag body, a damage line is arranged on the upper surface of the lower folding tongue strip, one side, close to the damage line, of the lower folding tongue strip is coated with an adhesive sticker, and the adhesive sticker is arranged on the upper surface of the bag body. The surface of the adhesive sticker is covered with a protective strip, and protruding guide lines are symmetrically arranged on the side, close to the lower folding tongue strip, of the bag body. Through the arrangement of the paper bag structure, the lower folding tongue strip and the easy-to-tear strip are additionally arranged on the bag body, a worker only needs to fold down the lower folding tongue strip to seal the bag body through the adhesive sticker on the surface of the lower folding tongue strip, and a consumer only needs to privately detach the easy-to-tear strip to separate the lower folding tongue strip from the bag body, so that the convenience of opening and closing the bag body is improved; and the downward folding tongue strip can completely seal the bag opening, so that the bag body has a certain privacy protection property, the practicability of the bag body is improved, and the bag is convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of packaging bags, and in particular to a method for making an easy-tear packaging bag. Background Art

[0002] Different types of paper bags have different uses. The most versatile ones in daily life make it convenient to transport and store goods during the sales and circulation process. Among them, paper packaging bags are widely used in the consumer market and have many advantages such as convenience, environmental protection, and easy recycling.

[0003] Most of the existing packaging bags on the market are folded and sealed with staples. When consumers use them, they need to tear off the seals fixed with staples to open the packaging bags. At the same time, the stapled sealing method is easy to scratch consumers when tearing the seals, and it is not convenient to take out the food inside the packaging bags. At the same time, the use of staples not only increases the cost of use, but also increases the difficulty of operation for staff, thereby making it inconvenient to use. Therefore, it is necessary to design a method for making an easy-tear packaging bag that is easy to seal and can facilitate taking out of food from the packaging bag. Summary of the invention

[0004] In order to overcome the shortcomings of the existing packaging bags in the prior art that are inconvenient to seal and inconvenient for consumers to open, one of the objectives of the present invention is to provide a method for making an easy-tear packaging bag.

[0005] One of the purposes of the present invention is achieved by the following technical scheme: a method for manufacturing an easy-tear packaging bag, comprising a paper bag structure: the paper bag structure comprises a bag body, a lower folding tongue strip is arranged on the upper part of the bag body, a breaking line is arranged on the upper surface of the lower folding tongue strip, a side of the lower folding tongue strip close to the breaking line is coated with a self-adhesive sticker, a surface of the self-adhesive sticker is coated with a protective strip, a side of the bag body close to the lower folding tongue strip is symmetrically provided with a raised guide line, a side of the bag body close to the raised guide line is symmetrically provided with a spacer cut line, the area between the spacer cut lines is an easy-tear strip, and a hand rope is symmetrically arranged on the inner wall of the bag body; the paper bag structure is made of environmentally friendly materials, and the paper bag structure is integrally formed; A method for making an easy-tear packaging bag is provided, which specifically comprises the following steps: S1. Put the base paper into the machine to print the pattern, and then put it into the forming machine to start the automatic assembly line paper bag forming; S2, forming, punching and cutting: punching and cutting the base paper to form a rectangular paper and three lower folding tongue strips located on one side of the rectangular paper; S3, breaking line cutting: cutting a semi-elliptical breaking line on the upper surface of the three lower folding tongue strips by a laser cutting device; S4, spraying adhesive: spray adhesive uniformly on the damage line area of ​​the three lower folding tongue strips through a spraying device; S5, Laminating: The protective strip is automatically fed to the adhesive to protect the adhesive and prevent it from losing its stickiness; S6, making raised guide lines: pressing down the paper bag support surface on one side of the lower folding tongue strip at intervals by means of a downward pressing convex block device, thereby forming raised guide lines with continuous intervals; S7, interval cutting and tear strip formation: the area between the raised guide lines is cut and punched at intervals by a cutting and punching device to form an easy-tear strip; S8, assembling the hand rope: the hand rope is installed on one side and the opposite side of the folded tongue strip under the rectangular paper by automatic hand rope loading and heat sealing and flattening; S9, roll paper folding: the paper bag structure is folded by a fully automatic folding device, so that the entire paper bag structure except the bottom surface is formed; S10, gluing the bottom connection of the paper bag structure: evenly applying colloid to the bottom connection of the paper bag structure through an automated gluing device; S11, pasting the bottom: folding the bottom surface of the paper bag structure after the colloid is coated by an automatic folding device to seal the bottom of the paper bag structure; S12, the paper bag structure is completely formed.

[0006] The above scheme has the following beneficial effects: Through the setting of the paper bag structure, by adding a lower folding tongue strip and an easy-tear strip on the bag body, the staff only needs to fold down the lower folding tongue strip to close the bag body through the self-adhesive sticker on its surface, and the consumer only needs to pull the easy-tear strip to separate the lower folding tongue strip from the bag body, thereby improving the convenience of opening and closing the bag body, and the lower folding tongue strip can completely close the bag opening so that the bag body itself has a certain degree of privacy protection, thereby improving the practicality of the bag body and making it easy to use.

[0007] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The present invention is further described below in conjunction with the accompanying drawings and embodiments; Figure 1 It is a schematic diagram of the overall structure of a method for making an easy-tear packaging bag of the present invention; Figure 2 A schematic diagram of a paper bag structure of a method for making an easy-tear packaging bag of the present invention; Figure 3 A schematic diagram of a folded paper bag structure in a method for making an easy-tear packaging bag of the present invention; Figure 4 A schematic diagram of a paper bag structure in a closed state in a method for making an easy-tear packaging bag of the present invention; Figure 5 It is a structural schematic diagram of a paper bag structure in a method for making an easy-tear packaging bag of the present invention, when the paper bag structure is unfolded in a plane; Figure 6 It is a schematic diagram of the top view of a method for manufacturing an easy-tear packaging bag of the present invention; Figure 7 The present invention is a bottom structural schematic diagram of a method for manufacturing an easy-tear packaging bag.

[0009] Legend: 1. Paper bag structure; 101. Bag body; 102. Bottom fold strip; 103. Failure line; 104. Adhesive strip; 105. Protection strip; 106. Raised guide line; 107. Interval knife cutting line; 108. Tear strip; 109. Hand rope. DETAILED DESCRIPTION

[0010] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0011] Reference Figure 1-7A method for making an easy-tear packaging bag comprises a paper bag structure 1: the paper bag structure 1 comprises a bag body 101, a lower folding tongue strip 102 is arranged above the bag body 101, a destruction line 103 is arranged on the upper surface of the lower folding tongue strip 102, a self-adhesive sticker 104 is coated on the side of the lower folding tongue strip 102 close to the destruction line 103, a surface of the self-adhesive sticker 104 is coated with a protective strip 105, a side of the bag body 101 close to the lower folding tongue strip 102 is symmetrically provided with raised guide lines 106, a side of the bag body 101 close to the raised guide lines 106 is symmetrically provided with spacer cut lines 107, an area between the spacer cut lines 107 is an easy-tear strip 108, a hand rope 109 is symmetrically arranged on the inner wall of the bag body 101, the paper bag structure 1 is made of environmentally friendly materials, and the paper bag structure 1 is integrally formed. When the staff needs to close the bag body 101, they tear off the protective strip 105 from the adhesive 104, fold the lower folded tongue strip 102 downward, and stick the lower folded tongue strip 102 to the other side support surface of the bag body 101 through the adhesive 104, and then close the bag body 101. When the consumer needs to open the bag body 101, they tear the easy-tear strip 108 to separate the lower folded tongue strip 102 from one side support surface of the bag body 101, and then open the bag body 101. The setting of the easy-tear strip 108 and the lower folded tongue strip 102 can be convenient for both staff and consumers to use, thereby improving the convenience of opening and closing the bag body 101, while saving materials and playing an environmental protection role.

[0012] Working principle: put the base paper into the machine to print the pattern, and then put it into the forming machine to start the automatic assembly line paper bag forming. First, punch and cut the base paper to form a rectangular paper and three lower folding tongue strips 102 located on one side of the rectangular paper. Cut the semi-elliptical damage line 103 on the upper surface of the three lower folding tongue strips 102 by a laser cutting device, and then use the spraying device to evenly spray the self-adhesive 104 on the damage line 103 area of ​​the three lower folding tongue strips 102, and then use the automatic feeding protection strip 105 to stick it on the self-adhesive 104, so as to protect the self-adhesive 104 and prevent it from losing its stickiness, and then use the downward pressing block device to press down the paper bag support surface on one side of the lower folding tongue strip 102 at intervals. Thereby, intermittently spaced raised guide lines 106 are formed, and then the areas between the raised guide lines 106 are cut and punched at intervals by a cutting and punching device to form easy-tear strips 108, and then the automatic hand rope 109 is automatically loaded and installed on one side and the opposite side of the folding tongue strip 102 under the rectangular paper by heat sealing and flattening, and then the paper bag structure 1 is folded by a fully automatic folding device, so that the entire paper bag structure 1 except the bottom surface is formed, and then the bottom surface connection of the paper bag structure 1 is evenly coated with colloid by an automatic gluing device, and then the bottom surface of the paper bag structure 1 after the colloid is coated is folded by an automatic folding device to seal the bottom of the paper bag structure 1, and finally the paper bag structure 1 is completely formed. By adopting a fully automated production method for making paper bags, it is more convenient and the efficiency of paper bag production is improved. At the same time, a paper bag structure 1 with a lower folding tongue strip 102 and an easy-tear strip 108 can be produced, which makes it more convenient for staff to close the bag body 101 and for consumers to open the bag body 101. In addition, using paper as a raw material is more environmentally friendly, thereby protecting the environment.

[0013] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A method for making an easy-tear packaging bag, characterized in that: The paper bag structure (1) comprises a bag body (101), a lower folding tongue strip (102) is provided above the bag body (101), a breaking line (103) is provided on the upper surface of the lower folding tongue strip (102), a self-adhesive sticker (104) is applied on the side of the lower folding tongue strip (102) close to the breaking line (103), a protective strip (105) is coated on the surface of the self-adhesive sticker (104), a raised guide line (106) is symmetrically provided on the side of the bag body (101) close to the lower folding tongue strip (102), a spacer cut line (107) is symmetrically provided on the side of the bag body (101) close to the raised guide line (106), an area between the spacer cut lines (107) is an easy-tear strip (108), and a hand rope (109) is symmetrically provided on the inner wall of the bag body (101); The paper bag structure (1) is made of environmentally friendly materials, and the paper bag structure (1) is integrally formed; A method for making an easy-tear packaging bag is provided, which specifically comprises the following steps: S1. Put the base paper into the machine to print the pattern, and then put it into the forming machine to start the automatic assembly line paper bag forming; S2, forming, punching and cutting: punching and cutting the base paper to form a rectangular paper and three lower folding tongue strips (102) located above one side of the rectangular paper; S3, breaking line cutting: cutting a semi-elliptical breaking line (103) from the upper surface of the three lower folding tongue strips (102) by a laser cutting device; S4, spraying adhesive: using a spraying device to evenly spray adhesive (104) on the damage line (103) area of ​​the three lower folding tongue strips (102); S5, laminating: the protective strip (105) is automatically fed and pasted on the adhesive sticker (104), thereby protecting the adhesive sticker (104) and preventing it from losing its stickiness; S6, making the raised guide line (106): pressing down the paper bag support surface on one side of the lower folding tongue strip (102) at intervals by means of a convex block pressing device, thereby forming raised guide lines (106) with continuous intervals; S7, forming the interval cutting lines (107) and the easy-tear strip (108): the area between the raised guide lines (106) is cut and punched at intervals by a cutting and punching device to form the easy-tear strip (108); S8, assembling the hand rope (109): the hand rope (109) is automatically loaded by the automatic hand rope (109) and installed on one side and the opposite side of the lower folding tongue strip (102) of the rectangular paper by heat sealing and flattening; S9, folding the roll paper: folding the paper bag structure (1) by a fully automatic folding device, so that the entire paper bag structure (1) except the bottom surface is formed; S10, applying glue to the bottom connection of the paper bag structure (1): applying glue evenly to the bottom connection of the paper bag structure (1) by an automated gluing device; S11, pasting the bottom: folding the bottom surface of the paper bag structure (1) after the colloid is coated by an automatic folding device to seal the bottom of the paper bag structure (1); S12, the paper bag structure (1) is completely formed.

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