阅读说明：本技术 耐用型站立袋 (Durable standing bag ) 是由 王文华 梁仕胜 于 2021-08-13 设计创作，主要内容包括：本发明属于包装袋技术领域,具体涉及一种站立袋。耐用型站立袋,包括袋体,袋体上具有袋口,袋体的底面具有袋底,袋体采用聚乙烯改性材料制成的袋体。本发明通过改进了袋体的生产材料,使得袋体在低温下依然具有站立及耐用的多重优点。(The invention belongs to the technical field of packaging bags, and particularly relates to a standing bag. A durable standing bag comprises a bag body, wherein a bag opening is formed in the bag body, a bag bottom is arranged on the bottom surface of the bag body, and the bag body is made of polyethylene modified materials. The invention improves the production material of the bag body, so that the bag body still has multiple advantages of standing and durability at low temperature.)

1. The durable standing bag comprises a bag body, wherein a bag opening is formed in the bag body, and a bag bottom is arranged on the bottom surface of the bag body.

2. The durable standing bag of claim 1 wherein the thickness of said bag is related to the size of said bag by:

when the width of the bag body is less than or equal to 16.75 inches, the height of the bag body is less than or equal to 12.5 inches, and the length of the plug bottom of the bag body is less than or equal to 6.75 inches, the thickness of the bag body is not more than 1.75 mils;

when the width of the bag body is 21 inches to 26.5 inches, the height of the bag body is 16.25 inches, and the length of the plug bottom of the bag body is 9 inches, the thickness of the bag body is 2.25 mils.

3. The durable standing bag of claim 1 wherein the bag body is made of a polyethylene modified material selected from the group consisting of:

3-5 parts by weight, preferably 4 parts by weight of high-density polyethylene raw material;

5 to 7 parts by weight, preferably 6 parts by weight of metallocene polyethylene raw material.

4. The durable standing bag of claim 1 wherein said bag body is made by the process of:

uniformly mixing the polyethylene modified material in a stirrer at the temperature of 10-30 ℃, preferably at the temperature of 20 ℃ to obtain a mixture;

placing the mixture into a co-extrusion film blowing machine, and blowing the mixture into a cylindrical film under the low-neck process;

and cutting the cylinder film according to the requirement, and manufacturing the bag body by a bag making machine.

5. The durable standing bag of claim 1 wherein the bag bottom is a rectangular bag bottom.

6. The durable standing bag according to any one of claims 1 to 5, wherein a sealing adhesive layer is transversely arranged on the inner side of the bag opening, an anti-sticking layer is stuck outside the sealing adhesive layer, and the anti-sticking layer is detachably stuck on the sealing adhesive layer;

the bag body is at least provided with a transverse breakpoint type tear line, and the breakpoint type tear line is positioned below the sealing adhesive layer or below the opposite surface of the sealing adhesive layer.

7. The durable stand up pouch of claim 6, wherein said two break tear lines are symmetrically disposed on the front and rear sides of said pouch body.

8. The durable standing bag of claim 6 wherein the broken tear line extends to left and right ends of the bag body.

9. The durable standing bag of claim 6 wherein the release layer is a release film;

the both ends about the sealing glue film with both ends have the default distance or extend to about the bag body both ends about the bag body.

10. The durable standing bag according to claim 6, wherein the bag body is provided with handles, the handles being two handle loops disposed on the outer sides of the front and back sides of the bag body;

two the portable belt ring is located breakpoint formula tear line below.

Technical Field

The invention belongs to the technical field of packaging bags, and particularly relates to a standing bag.

Background

With the progress of society, the living standard of people is gradually improved, more and more people are gradually used to take out, and in the process, the take-out bag is important, and paper bags and PP (polypropylene) plastic bags are widely popular in the market at present. For PP plastic bags, the plastic bags need a certain thickness to stand up, and the vertical forming is difficult, so that the production cost is increased. In addition, PP plastic bags become brittle at low ambient temperatures, and are prone to cracking or breaking.

Disclosure of Invention

The present invention is directed to the above technical problem, and aims to provide a durable standing bag.

The durable standing bag comprises a bag body, wherein a bag opening is formed in the bag body, a bag bottom is arranged on the bottom surface of the bag body, and the bag body is made of a polyethylene modified material.

The bag body made of the polyethylene modified material is adopted, so that the bag body can still stand on the premise of being made thinner, and compared with the traditional PP material, the polyethylene modified material cannot crack or break due to brittleness at lower ambient temperature, and the service life of the bag body is greatly prolonged.

The thickness of the bag body and the size relation of the bag body are as follows:

when the width of the bag body is less than or equal to 16.75 inches, the height of the bag body is less than or equal to 12.5 inches, and the length of the plug bottom of the bag body is less than or equal to 6.75 inches, the thickness of the bag body is not more than 1.75 mils;

when the width of the bag body is 21 inches to 26.5 inches, the height of the bag body is 16.25 inches, and the length of the plug bottom of the bag body is 9 inches, the thickness of the bag body is 2.25 mils.

Through the relation, the optimal bag body thickness can be selected under the required specification condition, so that the standing of the bag body can be realized, and the production cost is greatly reduced.

The bag body is made of the following polyethylene modified materials:

3-5 parts by weight, preferably 4 parts by weight of high-density polyethylene raw material;

5 to 7 parts by weight, preferably 6 parts by weight of metallocene polyethylene raw material.

The bag body is made by adopting the following processes:

uniformly mixing the polyethylene modified material in a stirrer at the temperature of 10-30 ℃, preferably at the temperature of 20 ℃ to obtain a mixture;

placing the mixture into a co-extrusion film blowing machine, and blowing the mixture into a cylindrical film under the low-neck process;

and cutting the cylinder film according to the requirement, and manufacturing the bag body by a bag making machine.

The bag bottom is a rectangular bag bottom.

A sealing adhesive layer is transversely arranged on the inner side of the bag opening, an anti-sticking layer is pasted outside the sealing adhesive layer, and the anti-sticking layer is detachably pasted on the sealing adhesive layer;

the bag body is at least provided with a transverse breakpoint type tear line, and the breakpoint type tear line is positioned below the sealing adhesive layer or below the opposite surface of the sealing adhesive layer. The bag comprises a bag body, a bag cover and a bag cover. When a consumer needs to take out the article, one line is torn through the breakpoint type tearing line, so that the bag opening is opened, and the article can be taken out.

The two breakpoint type tearing lines are symmetrically arranged on the front face and the rear face of the bag body.

The left end and the right end of the breakpoint type tearing line extend to the left end and the right end of the bag body.

The anti-sticking layer is a release film.

The both ends about the sealing glue film with both ends have the distance of predetermineeing about the bag body. So that small articles such as chopsticks or spoons can be put in the two sides of the bag mouth under the condition that the bag mouth is sealed and large articles cannot be taken out.

The left end and the right end of the sealing glue layer extend to the left end and the right end of the bag body. So as to achieve a complete seal of the mouth of the bag.

The bag body is provided with a handle, and the handle is two portable belt rings arranged on the outer sides of the front and back surfaces of the bag body.

Two the portable belt ring is located breakpoint formula tear line below. So that the bag body can be continuously recycled after being opened through the breakpoint type tearing line.

Has the advantages that: the invention improves the production material of the bag body, so that the bag body still has multiple advantages of standing and durability at low temperature.

Drawings

FIG. 1 is a schematic diagram of a structure of the present invention.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific drawings.

Referring to fig. 1, the durable standing bag comprises a bag body 1, wherein a bag opening is formed in the bag body 1, a bag bottom is arranged on the bottom surface of the bag body 1, the bag bottom is a rectangular bag bottom, when the bag body 1 does not need to stand, the bag bottom is folded in the bag body 1, and when the bag body 1 needs to stand, the bag bottom is unfolded to form the rectangular bag bottom so as to horizontally place articles.

The sack inboard transversely is provided with one 2, seals glue film 2 and has laminated one 3 outward, and the laminating of antiseized layer 3 detachable is on sealing glue film 2. The bag body 1 is at least provided with a transverse breakpoint type tear line 4, and the breakpoint type tear line 4 is positioned below the sealing adhesive layer 2 or below the opposite surface of the sealing adhesive layer 2. The purpose of tearing the bag opening is that two breakpoint type tearing lines 4 are provided, and the two breakpoint type tearing lines 4 are symmetrically arranged on the front and back surfaces of the bag body 1. The left and right ends of the breakpoint tear line 4 extend to the left and right ends of the bag body 1.

The anti-sticking layer 3 is a release film. So that the anti-sticking layer 3 can be easily taken down from the sealing glue layer 2, and the sealing glue layer 2 is bonded with the opposite bag body.

The left end and the right end of the sealing glue layer 2 can have a preset distance with the left end and the right end of the bag body 1. So that small articles such as chopsticks or spoons can be put in the two sides of the bag mouth under the condition that the bag mouth is sealed and large articles cannot be taken out. The left and right ends of the sealing glue layer 2 can also extend to the left and right ends of the bag body 1. So as to achieve a complete seal of the mouth of the bag.

The bag body 1 is provided with a handle 5, and the handle 5 is two portable belt rings arranged on the outer sides of the front and back surfaces of the bag body 1. The two carry strap loops are located below the breakpoint tear line 4. So that the bag body can be continuously recycled after being opened through the breakpoint type tearing line 4.

The sealing adhesive layer 2 and the anti-sticking layer 3 are additionally arranged on the inner side of the original bag opening, when the bag is used, after articles are placed in the bag body, the anti-sticking layer 3 can be torn off, and the sealing adhesive layer 2 is bonded with the inner side of the bag body opposite to the sealing adhesive layer, so that the bag opening is sealed, and the opening prevention effect is achieved. When a consumer needs to take out the article, one line is torn through the breakpoint type tearing line 4, so that the bag opening is opened, and the article can be taken out.

The bag body 1 of the invention is made of polyethylene modified material 1. Adopt the bag body 1 that the polyethylene modified material made, under the thinner prerequisite of bag body 1 preparation, the bag body 1 still can realize standing, and the polyethylene modified material compares with traditional PP material, when ambient temperature is lower, can not take place to split or broken problem because of fragile, has prolonged the life of the bag body 1 greatly.

The thickness of the bag body 1 and the size of the bag body 1 are related as follows:

when the width of the bag body 1 is less than or equal to 16.75 inches, the height of the bag body 1 is less than or equal to 12.5 inches, and the length of the plug bottom (bag bottom) of the bag body 1 is less than or equal to 6.75 inches, the thickness of the bag body 1 is not more than 1.75 mils; when the width of the bag body 1 is 21 inches to 26.5 inches, the height of the bag body 1 is 16.25 inches, and the length of the bottom of the bag body 1 is 9 inches, the thickness of the bag body 1 is 2.25 mils. As shown in fig. 1, the left-right direction is the width direction of the bag body 1, and the up-down direction is the height direction of the bag body 1. When the bag body 1 is provided with the handle 5, the maximum length of the handle 5 is 370mm, the width of the handle 5 is 1.25 inches, and the thickness of the handle 5 is 5.5 mils. Through the relation, the optimal thickness of the bag body 1 can be selected under the required specification condition, so that the standing of the bag body 1 can be realized, and the production cost is greatly reduced.

The bag body 1 is made of the following polyethylene modified materials:

3-5 parts by weight, preferably 4 parts by weight of a High Density Polyethylene (HDPE) raw material;

5 to 7 parts by weight, preferably 6 parts by weight of metallocene polyethylene raw material.

The bag body 1 is made by the following process:

uniformly mixing the polyethylene modified material in a stirrer at the temperature of 10-30 ℃, preferably at the temperature of 20 ℃ to obtain a mixture;

placing the mixture into a co-extrusion film blowing machine, and blowing the mixture into a cylindrical film under the process of low neck;

the cylindrical film is cut according to the requirement, and the bag body 1 is manufactured by a bag making machine.

Example 1:

uniformly mixing 3 parts by weight of high-density polyethylene raw material and 5 parts by weight of metallocene polyethylene raw material in a stirrer at the temperature of 10 ℃ to obtain a mixture;

placing the mixture into a co-extrusion film blowing machine, and blowing the mixture into a cylindrical film under the process of low neck;

the cylindrical film is cut according to the requirement, and the bag body 1 with the thickness of 1.75mil is manufactured by a bag making machine, wherein the width of the bag body 1 is 16.75 inches, the height of the bag body is 12.5 inches, and the length of the bottom of the bag is 6.75 inches.

The bag body 1 and the bag bottom thereof are manually unfolded, the bag opening is opened, and the bag body 1 can stand on a plane without collapse.

The bag body 1 of the embodiment is lifted and pulled for 35 times within 20 seconds under the condition of bearing 8lbs, and the cracking phenomenon is avoided.

Example 2:

uniformly mixing 5 parts by weight of high-density polyethylene raw material and 7 parts by weight of metallocene polyethylene raw material in a stirrer at the temperature of 30 ℃ to obtain a mixture;

placing the mixture into a co-extrusion film blowing machine, and blowing the mixture into a cylindrical film under the process of low neck;

the cylindrical film is cut according to the requirement, and the bag body 1 with the thickness of 2.25mil is manufactured by a bag making machine, wherein the width of the bag body 1 is 21 inches, the height of the bag body is 16.25 inches, and the length of the bottom of the bag is 9 inches.

The bag body 1 and the bag bottom thereof are manually unfolded, the bag opening is opened, and the bag body 1 can stand on a plane without collapse.

The bag body 1 of the embodiment is lifted and pulled for 35 times within 20 seconds under the condition of bearing 12lbs, and the cracking phenomenon is avoided.

Example 3:

uniformly mixing 4 parts by weight of high-density polyethylene raw material and 6 parts by weight of metallocene polyethylene raw material in a stirrer at the temperature of 20 ℃ to obtain a mixture;

placing the mixture into a co-extrusion film blowing machine, and blowing the mixture into a cylindrical film under the process of low neck;

the cylindrical film is cut according to the requirement, and the bag body 1 with the thickness of 2.25mil is manufactured by a bag making machine, wherein the width of the bag body 1 is 26.5 inches, the height of the bag body is 16.25 inches, and the length of the bottom of the bag is 9 inches.

The bag body 1 and the bag bottom thereof are manually unfolded, the bag opening is opened, and the bag body 1 can stand on a plane without collapse.

The bag body 1 of the embodiment is lifted and pulled for 35 times within 20 seconds under the condition of bearing 20lbs, and the cracking phenomenon is avoided.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.