CN217397261U

CN217397261U - Self-sealing strip easy to tear linearly and bag with self-sealing strip

Info

Publication number: CN217397261U
Application number: CN202221439312.9U
Authority: CN
Inventors: 钟火秀; 张晓鸾
Original assignee: Xiamen Threestone Packing Material Co ltd
Current assignee: Xiamen Threestone Packing Material Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-09-09
Anticipated expiration: 2032-06-09

Abstract

The utility model discloses a self-sealing strip easy to be torn off linearly and a bag with the self-sealing strip, belonging to the bag manufacturing field, the key points of the technical proposal are that the self-sealing strip comprises a concave strip and a convex strip which are mutually buckled and blades which are integrally formed on the back surfaces of the concave strip and the convex strip, the inner side wall of at least one blade is provided with a first wire slot, and the two ends of the first wire slot extend to the two ends of the blade; the bag with the self-sealing strip comprises a bag body, two blades of the self-sealing strip are respectively thermally sealed on the opposite inner side walls of the bag body, and the first wire slot on the self-sealing strip has a guiding effect, so that the tearing path of the bag can be taken along the first wire slot, the bag can be torn straightly, and the problem that the bag is torn askew is avoided.

Description

Self-sealing strip easy to tear linearly and bag with self-sealing strip

Technical Field

The utility model belongs to sack preparation field, more specifically says that it relates to an easily sharp the tearing from the strip of sealing and have the sack of sealing from the strip.

Background

A self-sealing strip is a plastic strip product, also known as a zipper, a sealing strip, and is often used for sealing bag mouths.

A conventional self-sealing strip is shown in fig. 1, and includes a concave strip 1 and a convex strip 2 that are fastened to each other, and a blade 3 integrally formed on the back of the concave strip 1 and the back of the convex strip 2.

Similar to the self-sealing strip in the prior art, the self-sealing strip is generally bonded directly to the bag body 10 by heat sealing (as shown in fig. 2), and the bag opening can be opened by separating the concave strip 1 from the convex strip 2 when the self-sealing strip is used.

However, after the contents are filled, a manufacturer normally seals the bag opening by heat, the bag opening above the self-sealing strip needs to be torn for use, and the problem that the bag opening is easily torn askew when the bag opening above the self-sealing strip is torn is solved.

In addition, since the bag mouth above the valve strip is easily contaminated with bacteria and the like, the bag needs to be torn from the bottom of the valve strip in order to avoid contact between the articles (for example, food) in the bag and the bag mouth above the valve strip, and the bag is also easily torn.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an easily the straight line tear from the strip of paper used for sealing and have the sack of the strip of paper used for sealing, wire casing one on it has the guide effect, and the sack can be walked along the route of wire casing one with the route of tearing of sack for sack and sack can tear by the straight line, avoid appearing the sack and tear askew problem.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides an easily sharp strip of proclaiming oneself of tearing, includes the concave strip and the sand grip of mutual lock and integrated into one piece in the blade at the concave strip and the sand grip back, at least a slice the inside wall of blade is equipped with wire casing one, the both ends of wire casing one extend to the both ends of blade.

By adopting the technical scheme:

when the bag needs to be torn from the bottom of the self-sealing strip, the self-sealing strip is sealed in the bag in a positive heat mode, the first wire groove is far away from the bag opening and has a guiding effect, the tearing path of the bag can be led along the path of the first wire groove, and the problem that the bag is torn askew can be avoided.

Secondly, when needs are torn the sack from the strip top of proclaiming oneself, will proclaiming oneself the strip heat seal in the sack to make first wire casing be close to the sack, first wire casing has the guide effect, and the route of tearing of sack can be walked along the route of first wire casing this moment, can not appear the sack and tear askew problem.

The bag with the self-sealing strips comprises a bag body, wherein two blades of the self-sealing strips are respectively thermally sealed on the opposite inner side walls of the bag body.

Through adopting above-mentioned technical scheme, with its heat seal on the sack, when people need tear the sack from the strip bottom of sealing, wire casing one has the guide effect, and the path of tearing of sack can be walked along the path of wire casing one this moment, the askew problem of sack tear can not appear.

The utility model discloses further set up to: and at least one inner side wall of the bag body is provided with a second wire groove below the self-sealing strip.

Through adopting above-mentioned technical scheme, the difference of wire casing two and wire casing one lies in that the wire casing is two in on the sack, can play the guide effect equally, when needs are torn the sack from the strip bottom, the tearing route of sack also can be walked along the route of wire casing two, the askew problem of sack tearing can not appear.

The utility model discloses further set up to: and a third wire groove is formed in at least one inner side wall of the bag body and positioned above the self-sealing strip.

Through adopting above-mentioned technical scheme, the wire casing is three in the sack, can play the guide effect equally, when needs are torn the sack from the strip top (for example when the sack heat-seal is sealed), the tearing route of sack can be walked along the route of wire casing three, can not appear the problem that the sack was torn badly.

The utility model discloses further set up to: the edge of the bag body is provided with a first easy-opening connected with the end part of the first wire groove.

The utility model discloses further set up to: and the edge of the bag body is provided with a second easy-opening port connected with the end part of the second wire slot.

The utility model discloses further set up to: and a third easy-to-open port connected with the end part of the third wire groove is arranged at the edge of the bag body.

By adopting the technical scheme, the bag is easily torn by people with the first, second and third easy-to-open openings.

The utility model discloses further set up to: the bag body comprises an inner layer and an outer layer, and the self-sealing strip is positioned on the inner side of the inner layer.

Through adopting above-mentioned technical scheme, to food bag and opposite sex bag, the sack has bilayer structure, and it can tear along wire casing equally to be located the inlayer inboard from the valve strip, can not take place to tear askew problem.

To sum up, the utility model has the advantages of it is following:

1. the first wire groove is arranged on the inner side wall of at least one blade and has a guiding function, the self-sealing strip is thermally bonded on the bag, and when the bag needs to be torn from the bottom of the self-sealing strip, the first wire groove has a guiding function, and the tearing path of the bag can run along the path of the first wire groove, so that the problem that the bag is torn askew can be avoided;

2. the second wire groove is different from the first wire groove in that the second wire groove is positioned on the bag and can also play a role in guiding, when the bag needs to be torn from the bottom of the self-sealing strip, the tearing path of the bag can also run along the path of the second wire groove, and the problem that the bag is torn askew can be avoided;

3. through setting up wire casing three, when the sack heat-seal was sealed, need tear the sack from proclaiming oneself the strip top, wire casing three plays the guide effect this moment, and the tearing path of sack can be walked along the path of wire casing three, the problem that the sack tore can not appear.

Drawings

FIG. 1 is an exploded view of a prior art self-sealing strip;

FIG. 2 is a perspective view of a prior art bag heat sealed to a self-sealing strip;

FIG. 3 is an exploded view of the self-sealing strip of example 1;

FIG. 4 is a perspective view of embodiment 2;

figure 5 is an exploded view of the self-sealing strip of example 3.

Reference numerals: 1. concave strips; 2. a convex strip; 3. a blade; 4. a first wire slot; 5. a second wire slot; 6. a wire groove III; 7. the opening I is easy to open; 8. the second opening is easy to open; 9. the third opening is easy; 10. a bag body.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1:

the utility model provides an easily proclaim oneself strip of tearing of straight line, refers to fig. 3, includes concave strip 1 and sand grip 2 and integrated into one piece in the blade 3 of concave strip 1 and the back of sand grip 2 of mutual lock. The inside wall of at least a slice blade 3 is equipped with wire casing 4, and the both ends of wire casing 4 extend to the both ends of blade 3.

Example 2:

referring to fig. 3 and 4, two blades 3 of the self-sealing strip are respectively fixed on two opposite inner side walls of the bag body 10 in a heat sealing or bonding manner, and at this time, the first wire groove 4 is located on one side of the concave strip 1 or the convex strip 2 away from the bag opening.

At least one inner side wall of the bag body 10 is positioned below the self-sealing strip and is provided with a second trunking 5, and at least one inner side wall of the bag body 10 is positioned above the self-sealing strip and is provided with a third trunking 6. The edge of the bag body 10 is provided with a first easy opening 7 connected with the end part of the first wire slot 4, the edge of the bag body 10 is provided with a second easy opening 8 connected with the end part of the second wire slot 5, and the edge of the bag body 10 is provided with a third easy opening 9 connected with the end part of the third wire slot 6. The first easy-open port 7, the second easy-open port 8 and the third easy-open port 9 can be arranged on a single edge of the bag body 10, and can also be symmetrically arranged on the edges of the bag body 10.

Example 3: a bag with the self-sealing strips in the embodiment 1 is different from the bag in the embodiment 2 in that referring to fig. 4 and 5, when the self-sealing strips are thermally sealed in a bag body 10, the self-sealing strips are turned over and then thermally sealed, a first wire groove 4 is positioned on one side of a concave strip 1 or a convex strip 2 close to a bag opening, and the bag opening is linearly torn.

Example 4: a bag with the self-sealing strips of embodiment 1 is different from embodiment 2 in that a bag body 10 comprises an inner layer and an outer layer, the inner layer and the outer layer are not shown in the figure, and the self-sealing strips are positioned on the inner side of the inner layer.

The utility model discloses a working process and beneficial effect as follows: will proclaim oneself the strip heat seal on bag body 10, when needs are torn bag body 10 from proclaiming oneself the strip bottom, wire casing one 4, wire casing two 5 all have the guide effect, and the route of tearing of sack can be walked along wire casing one 4 or wire casing two 5's route this moment for bag body 10 can be torn with the sack by the straight line, can not appear bag body 10 and sack and tear askew problem.

When the bag body 10 needs to be torn from the top of the self-sealing strip, for example, when the bag mouth of a breast milk bag is sealed by heat sealing, or the bag mouth is sealed by heat sealing under other conditions, the tearing path can be made to go along the line groove three 6 or the line groove one 4 through the easy-to-open opening three 9 or the easy-to-open opening one 7, and the problem of tearing the bag mouth cannot occur.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides an easy sharp strip of proclaiming oneself of tearing, includes concave strip (1) and sand grip (2) and integrated into one piece blade (3) at concave strip (1) and sand grip (2) the back of mutual lock, its characterized in that: the inner side wall of the at least one blade (3) is provided with a first wire groove (4), and two ends of the first wire groove (4) extend to two ends of the blade (3).

2. Bag with a self-sealing strip according to claim 1, comprising a bag body (10), characterized in that: two blades (3) of the self-sealing strip are respectively thermally sealed on the opposite inner side walls of the bag body (10).

3. The bag according to claim 2 wherein: at least one inner side wall of the bag body (10) is provided with a second trunking (5) below the self-sealing strip.

4. A pouch according to any of claims 2 or 3, wherein: at least one inner side wall of the bag body (10) is provided with a wire groove III (6) above the self-sealing strip.

5. The bag according to claim 2 wherein: the edge of the bag body (10) is provided with a first easy-opening (7) connected with the end part of the first wire casing (4).

6. The bag according to claim 3 wherein: and the edge of the bag body (10) is provided with a second easy-opening (8) connected with the end part of the second wire casing (5).

7. The bag according to claim 4 wherein: and the edge of the bag body (10) is provided with a third easy-opening (9) connected with the end part of the wire groove (6).

8. The bag according to claim 2 wherein: the bag body (10) comprises an inner layer and an outer layer, and the self-sealing strips are positioned on the inner side of the inner layer.