CN105083721A - A tear open packaging bag - Google Patents

Abstract

The invention provides a tearing open type packaging bag, which comprises: wrapping bag body, pressure tongue, sticky tape and tear strip, the tear strip scalds to be sealed in wrapping bag body surface to including track and zip fastener, through tearing the zip fastener can open the wrapping bag body. The invention adopts the single-layer plastic film to manufacture the packaging bag body, achieves the purposes of safe use, water resistance and moisture resistance while ensuring the strength of the packaging bag, greatly improves the convenience of the packaging operation and the bag opening operation of the plastic packaging bag by innovatively sealing a plastic tearing strip with good strength and toughness on the outer surface of the packaging bag body made of plastic materials by ironing, arranging the adhesive tape with strong viscosity, high peeling strength and anti-sticking film on the surface on the inner side of the tongue pressing at the upper end of the packaging bag body, does not need any auxiliary tool, eliminates the potential safety hazard while facilitating the opening operation, and has low manufacturing cost and wide market prospect.

Description

A tear open packaging bag

technical field

The invention belongs to the technical field of packaging, and more specifically relates to a tear-openable packaging bag.

Background technique

With the rapid development of the express delivery industry, packaging bags are widely used, and most of the express packaging bags for commodity packaging are paper bags or film plastic bags. The surface of the packaging bag is ready for delivery. For paper packaging bags, although the recipient receives the express, it is easy to tear open, but its safety is very low, especially it cannot be waterproof and moisture-proof, so paper packaging bags are gradually replaced by plastic or plasticized packaging bags . For the plastic packaging bags that are widely used in the existing industry, after receiving the express delivery, the recipient needs to use auxiliary tools such as scissors and knives to open the bag because the plastic packaging bag has a certain toughness, which makes the operation of opening the express delivery extremely inconvenient. , and there are also certain security risks. In the prior art, there has not been found a packaging bag that is safe to use, waterproof and moisture-proof, and is easy to open.

Contents of the invention

Based on the above-mentioned prior art problems, the present invention innovatively proposes a tear-openable packaging bag. By using a single-layer plastic film to make the packaging bag body, the purpose of safe use and waterproof and moisture-proof is achieved while ensuring the strength of the packaging bag. Innovatively, a plastic tear strip with excellent strength and toughness is hot-sealed on the outer surface of the plastic packaging bag body, and a tape with strong stickiness, high peel strength and an anti-adhesive film on the surface is installed on the inner side of the tongue at the upper end of the packaging bag body, greatly Improve the convenience of plastic packaging bag sealing operation and bag opening operation, that is, when sealing the packaging bag, you only need to pull off the anti-adhesive film, and firmly stick the depressor tongue to the other side of the packaging bag sealing to complete the packaging; receiving When the party receives the packaging bag and opens the bag, he only needs to pull the plastic tear strip on the packaging bag body to open the packaging bag easily and quickly without using any auxiliary tools, which greatly facilitates the unsealing operation and eliminates potential safety hazards.

The technical scheme that the present invention solves the problems of the technologies described above is as follows:

A tear-openable packaging bag, comprising: a packaging bag body 1, a depressing tongue 2, an adhesive tape 3 and a tear strip 4, the depressing tongue 2 is integrally connected to the opening of the packaging bag body 1, and the adhesive tape 3 Set on the depressor tongue 2, the tear strip 4 is hot-sealed on the outer surface of the packaging bag body 1, and the tear strip 4 includes a track 41 and a zipper 42, and the track 41 and the zipper 42 are integrated A groove 43 is connected and formed between the track 41 and the zipper 42 , and the packaging bag body 1 can be opened by tearing the zipper 42 .

Further according to the tear open packaging bag according to the present invention, wherein the tear strip 4 has a rectangular strip structure as a whole, the zipper 42 is arranged in the middle of the tear strip 4, and on both sides of the zipper 42 The track 41 is provided, and a groove 43 is formed between the track 41 on each side and the zipper 42 , and the zipper 42 and the track 41 are integrally connected from the bottom of the groove 43 .

Further according to the tear open packaging bag of the present invention, wherein the track 41 is symmetrically arranged on both sides of the zipper 42, and the groove 43 is a triangular groove or a rectangular groove structure.

Further according to the tear open packaging bag of the present invention, wherein the groove 43 between the two ends of the zipper 42 and the corresponding track 41 has a through structure.

Further, according to the tear open packaging bag of the present invention, the two ends of the zipper 42 form a tear handle structure that is not sealed with the packaging bag body 1 .

Further according to the tear open packaging bag according to the present invention, wherein the length of the zipper 42 is greater than the length of the rails 41 on both sides, and the tear handle structure is formed at the part that grows from both ends of the zipper .

Further according to the tear open packaging bag of the present invention, wherein the tear strip 4 is provided with one or more at the bottom of the packaging bag body 1, and the length of the tear strip 4 is equal to or slightly smaller than the The width of the packaging bag body 1.

Further according to the tear open packaging bag of the present invention, wherein the packaging bag body 1 is made of a single-layer plastic film into a bag-like structure with double side walls, and the depressing tongue 2 is integrally connected to the packaging bag body through a creasing line 1, the adhesive tape 3 is arranged on the inner surface of the depressing tongue 2 and an anti-adhesive film is arranged on the surface of the adhesive tape 3 .

Further according to the tear open packaging bag of the present invention, wherein the tear strip 4 is made of the same plastic material as the packaging bag body 1 .

At least the following technical effects can be achieved through the technical solution of the present invention:

1), the present invention uses a single-layer plastic film to make the packaging bag body, which greatly improves the use safety and waterproof and moisture-proof performance of the packaging bag while ensuring the strength of the packaging bag;

2) For the first time in the present invention, a high-strength and high-toughness plastic tear strip is set on the outer surface of the plastic packaging bag in the form of heat sealing, and the easy and fast opening of the packaging bag is realized through the tear strip without any auxiliary tools, which is greatly convenient Bag opening operation;

3) In the packaging bag of the present invention, the adhesive tape with strong stickiness, high peel strength and anti-adhesive film on the surface is selected on the inner side of the depressor tongue, which facilitates the encapsulation operation;

4), the packaging bag and the tear strip of the present invention are made of plastic material, which has the advantages of high strength, waterproof and moisture-proof and safe to use. At the same time, the processing and manufacturing process of the adhesive tape and the tear strip of the present invention is simple, and the entire packaging bag The production cost is low and has strong practical value for marketing.

Description of drawings

Accompanying drawing 1 is the overall structure schematic diagram of the tear open type packaging bag of the present invention;

Accompanying drawing 2 is the schematic diagram of the front view of the tear strip with the first preferred structure in the tear open packaging bag of the present invention;

Accompanying drawing 3 is the schematic diagram of the front view structure of the tear strip with the second preferred structure in the tear open packaging bag of the present invention;

Accompanying drawing 4 is the first preferred side view structure diagram of the tear strip shown in accompanying drawing 2 or accompanying drawing 3;

Accompanying drawing 5 is a schematic diagram of the second preferred side view structure of the tear strip shown in accompanying drawing 2 or accompanying drawing 3 .

The meaning of each reference mark in the figure is as follows:

1-Packing bag body, 2-Tongue depressor, 3-Adhesive tape, 4-Tear strip;

41-track, 42-zipper, 43-groove.

Detailed ways

The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can understand the solution of the present invention more clearly, but the protection scope of the present invention is not limited thereby.

As shown in Figure 1, the tear-openable packaging bag of the present invention as a whole includes: a packaging bag body 1, a tongue depressor 2, an adhesive tape 3 and a tear strip 4, and the packaging bag body 1 is preferably made of a single-layer plastic film In a bag-like structure, the side wall of the packaging bag body 1 is integrally connected upward with a depressing tongue 2 through a creasing line at the mouth end of the bag, an adhesive tape 3 is arranged on the depressing tongue 2, and an adhesive tape 3 is provided on the surface of the adhesive tape 3. There is a layer of anti-adhesive film. When the product is loaded into the packaging bag, tear off the anti-adhesive film on the tape 3, then bend the tongue 2 inward, and stick the tape to the outer surface of the other side wall at the mouth end of the packaging bag. Complete the package. The tear strip 4 is made of environmentally friendly plastic material, preferably the same plastic material as the packaging bag body, can be set as one or more, and is arranged on the packaging bag body 1 in a heat-sealing manner, and is specifically heat-sealed on the packaging bag body 1. The bottom of the bag body 1 opposite to the top pocket end has a length equal to the width of the packaging bag body 1 or slightly smaller than the width of the packaging bag body 1, and can be opened from any one of the two ends of the zipper 42 of the tear strip 4 .

In conjunction with accompanying drawing 2-accompanying drawing 5, the overall structure of described tear strip 4 comprises track 41 and zipper 42, preferably comprises a zipper 42, two tracks 41, and the two sides of described zipper 42 are respectively provided with described track 41, and the track 41 and the slide fastener 42 have an integrated connection structure, a groove 43 is formed between the slide fastener 42 and the track 41, and the slide fastener 42 and the track 41 are integrally connected from the bottom of the groove 43, so that the The tear strip has an integral structure. The tear strip is extruded by a hot press, that is, integrally formed. The specific material of the tear strip is solid plastic, which is first melted into a liquid by a hot melt machine, and then the liquid is injected into a mold with a designed shape ( Including the track, groove and zipper structure shown in the attached drawing), and instant condensation turns the formed liquid into a solid again to obtain the tear strip of the structure. Since the tear strip and the packaging bag body are made of plastic, they can be firmly connected by hot sealing. Specifically, the bottom surface of the tear strip is hot-sealed on the surface of the packaging bag body by a hot sealing machine. Thus, the tear strip is integrally connected to the packaging bag body. The principle of easy opening of the packaging bag through the tear strip is: because the bottom surface of the tear strip is integrally hot-sealed and connected to the outer surface of the packaging bag body, and at the same time, a groove 43 is formed between the zipper 42 and the support rails 41 on both sides. , so that the connecting parts between the zipper and the rails on both sides are thinner, so that after a pulling force is applied to the zipper 42, the zipper part is easily broken from the rails on both sides, and at the same time, the bottom surfaces of the rails on both sides and the zipper are firmly connected to the surface of the packaging bag so that under the support of the rails on both sides, when the zipper and the rails on both sides are broken, the surface of the packaging bag that is firmly connected to the bottom surface of the zipper will be torn and cracked along the direction of the zipper, thereby realizing the unsealing operation of the packaging bag.

For the convenience of tearing operation, the zipper setting of the tear strip preferably has the structure shown in accompanying drawing 2 or accompanying drawing 3, at first as the first preferred structure, as shown in accompanying drawing 2, described zipper 42 is more than both sides The track 41 of the zipper is longer, so that when the heat-sealing machine heats the tear strip to the bag, the parts protruding from the two ends of the zipper are not heat-sealed, while other parts are all heat-sealed on the bag, and the two sides that are not to be heat-sealed The end is used as the tear handle for opening the packaging bag, so that it can be torn open from any end on both sides of the zipper; or as the second preferred structure as shown in accompanying drawing 3, the zipper 42 and the two sides The track 41 has the same length, but the two ends of the zipper 42 form a through groove structure with the two sides of the track, and the two ends of the zipper are not in contact with the ironing bead, and the other parts are all in contact with the ironing The sealing strip touches and is heat-sealed on the bag by the pressing strip, and the ends on both sides that are not heat-sealed also serve as tear handles for opening the packaging bag, which can be lifted and torn from the two ends of the zipper.

The tear strip preferably has a symmetrical structure. As shown in the cross-sectional view of accompanying drawing 4 and accompanying drawing 5, the slide fastener 42 is arranged in the middle, and track 41 is arranged symmetrically on both sides of the slide fastener 42. The tear strip as a whole A strip structure with a rectangular cross-section, the shape of the groove 43 is preferably a triangular groove structure shown in Figure 4, which is formed by cutting out an inverted triangle along the upper surface of the tear strip, or as shown in Figure 5 Yes, the groove 43 has a rectangular groove structure. No matter what kind of structure, the groove is formed in the thickness direction of the tear strip except for the end part of the zipper, and does not run through the entire tear strip, that is to say The zipper and the tracks on both sides are integrally connected at the bottom that is hot-sealed with the packaging bag body. The shape and appearance of the tear strip 4 is not limited to the structures shown in accompanying drawings 2 to 5 of this patent.

The above is only a description of the preferred implementation of the present invention, and does not limit the technical solution of the present invention to this. Any known deformation made by those skilled in the art on the basis of the main technical concept of the present invention belongs to the protection of the present invention. The technical category of the present invention, the specific protection scope of the present invention shall be determined by the description of the claims.

Claims (9)

1. A tear-openable packaging bag, characterized in that it includes: a packaging bag body (1), a tongue (2), an adhesive tape (3) and a tear strip (4), and the tongue (2) is integrated It is connected to the mouth of the packaging bag body (1), the tape (3) is set on the tongue (2), and the tear strip (4) is hot-sealed on the packaging bag body (1) The outer surface of the tear strip (4) includes a track (41) and a zipper (42), the track (41) and the zipper (42) are integrally connected and the track (41) and the zipper (42) A groove (43) is formed therebetween, and the packaging bag body (1) can be opened by tearing the zipper (42). 2. The tear-openable packaging bag according to claim 1, characterized in that, the tear strip (4) has a rectangular strip structure as a whole, and the zipper (42) is arranged on the tear strip (4) In the middle part, the track (41) is provided on both sides of the zipper (42), and a groove (43) is formed between the track (41) on each side and the zipper (42), so The zipper (42) and the track (41) are integrally connected from the bottom of the groove (43). 3. The tear open packaging bag according to claim 2, characterized in that, the track (41) is symmetrically arranged on both sides of the zipper (42), and the groove (43) is a triangular groove or rectangular slot structures. 4. The tear-openable packaging bag according to any one of claims 1-3, characterized in that, the groove (43) between the two ends of the zipper (42) and the corresponding track (41) has throughout the structure. 5. The tear-openable packaging bag according to claim 4, characterized in that, the two ends of the zipper (42) form a tear-off handle structure that is not sealed with the packaging bag body (1). 6. The tear-openable packaging bag according to claim 5, characterized in that, the length of the zipper (42) is longer than the length of the tracks (41) on both sides, and the part protruding from both ends of the zipper The tear handle structure is formed. 7. The tear-openable packaging bag according to any one of claims 1-6, characterized in that one or more tear strips (4) are provided at the bottom of the packaging bag body (1), and The length of the tear strip (4) is equal to or slightly smaller than the width of the packaging bag body (1). 8. The tear-openable packaging bag according to any one of claims 1-7, characterized in that, the packaging bag body (1) is made of a single-layer plastic film into a bag-like structure with double side walls, and the compressed The tongue (2) is integrally connected to the mouth end of the side wall of the packaging bag body (1) through a creasing line, and the adhesive tape (3) is arranged on the inner surface of the depressing tongue (2), and on the adhesive tape ( 3) An anti-adhesive film is provided on the surface. 9. The tear-openable packaging bag according to claim 8, characterized in that the tear strip (4) is made of the same plastic material as the packaging bag body (1).