Environment-friendly degradable envelope

By using a degradable paper layer and a biodegradable membrane in the envelope, combined with tearable strips and easy-to-tear wires, the problem of damage to documents when the envelope is opened is solved, and the envelope is environmentally friendly degraded and lossless opening is achieved.

CN223200626UActive Publication Date: 2025-08-08QINGDAO YIPINYONGHE PACKING CO LTD
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Patent Information

Application Number
CN202422216558.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-10
Publication Date
2025-08-08
Estimated Expiration
2034-09-10

AI Technical Summary

Technical Problem

Existing biodegradable envelopes are prone to damage the adhesive part or envelope strip when opened, resulting in damage to the documents in the envelope.

Method used

The envelope body design is designed with a biodegradable paper layer and a biodegradable membrane, and the combination of tearable strips and easy-to-tear threads is used to achieve lossless opening of the envelope.

Benefits of technology

It realizes the degradability and waterproofness of the envelope in humid environments, and opens the envelope without loss to protect the integrity of the documents in the envelope.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an environment-friendly degradable envelope, which belongs to the technical field of envelopes and comprises an envelope body, an opening, an envelope strip and an adhesive strip, the opening is arranged above the envelope body, the envelope strip is arranged on the outer edge of the opening along the transverse direction of the envelope body, and the adhesive strip is arranged above the outer side surface of the envelope body; when the envelope body needs to be opened, the tearable strip is torn down through the easy-to-tear line connected to the envelope body and the envelope strip, so that the adhesive strip is disconnected from the envelope body and is adhered to the envelope strip, the envelope strip is convenient to open, and files in the envelope body are convenient to take out; the envelope body does not need to be opened to take out the file in the envelope body by damaging the envelope strip, so that the file in the envelope body is prevented from being damaged when the envelope body is opened.
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Description

Technical Field

[0001] The utility model relates to the technical field of envelopes, in particular to an environmentally friendly and degradable envelope. Background Art

[0002] An envelope is a sealable container for letters or other written materials, typically made of paper, cardboard, or other flexible materials. Its design allows the contents to be delivered securely to the recipient while maintaining privacy and integrity. While the structure and style of envelopes may vary depending on region, usage, and cultural practices, their basic functions remain the same.

[0003] For example, in the prior art, patent publication number CN212922603U discloses a degradable Western-style envelope. By placing a waterproof protective material inside the envelope body and designing the protective material to be easily degradable, the envelope can simultaneously meet the requirements of waterproof protection and easy degradation, thus solving the problem of poor protective effect and difficulty in degradation of current Western-style envelopes.

[0004] However, when the envelope is sealed, the first adhesive portion on the adhesive portion and the second adhesive portion provided on the envelope strip are adhered to each other so that the envelope strip seals the upper opening of the envelope body. When the envelope is opened, it is necessary to damage the adhesive portion or the envelope strip, which is inconvenient to open. Moreover, damaging the adhesive portion or the envelope strip can easily damage the documents in the envelope body, affecting the normal use of the documents. Therefore, an environmentally friendly and degradable envelope is designed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the above-mentioned background technology and to propose an environmentally friendly and degradable envelope.

[0006] The technical problem to be solved by the utility model is to provide an environmentally friendly and degradable envelope, which solves the problem in the prior art that the paper documents in the envelope are easily damaged by opening the envelope by destroying the adhesive part or the envelope strip.

[0007] The utility model provides an environmentally friendly and degradable envelope, comprising an envelope body, an opening, an envelope strip and an adhesive strip, wherein the opening is provided above the envelope body, the envelope strip is provided on the outer edge of the opening along the transverse direction of the envelope body, and the adhesive strip is provided above the outer surface of the envelope body;

[0008] The envelope body comprises a degradable paper layer and a biodegradable film. The inner side of the envelope body is the degradable paper layer, and the outer side of the degradable paper layer is fixedly provided with the biodegradable film.

[0009] Preferably, the thickness of the degradable paper layer is 0.5-1 mm, and the thickness of the biodegradable film is 0.01-0.02 mm.

[0010] Preferably, the degradable paper layer is adhered to the degradable paper layer by heat pressing.

[0011] Preferably, the adhesive strip includes a tearable strip, double-sided tape and a protective film, the bottom of the adhesive strip is connected to the tearable strip through a tear line, the tearable strip is connected to the outer surface of the envelope body through the tear line, the bottom surface of the adhesive strip is adhered to the double-sided tape, and the protective film is adhered to the side of the double-sided tape away from the adhesive strip.

[0012] Preferably, a crease line is provided at the connection between the envelope body and the envelope strip along the transverse direction of the envelope body.

[0013] Preferably, when the envelope strip is folded downward along the crease line, the envelope strip can completely block the opening, and at this time the bottom level of the envelope strip is lower than the top level of the adhesive strip, and the level of the double-sided tape is higher than the level of the envelope strip.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] 1. The utility model is provided with a degradable paper layer and a biodegradable film, so that the envelope body can be degraded in a humid environment, and the biodegradable film has a certain waterproof effect, which can prevent the paper documents in the envelope body from getting damp due to the humid environment, ensuring that the paper documents in the envelope body are not damaged by moisture.

[0016] 2. The utility model is provided with an adhesive strip. When sealing the opening on the envelope body, the envelope strip is folded downward along the crease line so that the envelope strip blocks the upper opening of the envelope body. The envelope strip is inserted between the adhesive strip and the envelope body. The protective film is torn off and then adhered to the surface of the envelope strip with double-sided tape to achieve the effect of positioning the envelope strip, so that the envelope strip blocks the upper opening on the envelope body and achieves the sealing effect.

[0017] 3. When the envelope body needs to be opened, the tearable strip is torn off through the tear line connecting the envelope body and the envelope strip, so that the adhesive strip is disconnected from the envelope body. The adhesive strip is adhered to the envelope strip, which makes it convenient to open the envelope strip and take out the documents in the envelope body. There is no need to destroy the envelope strip to open the envelope body and take out the documents in the envelope body, thereby preventing the documents in the envelope body from being damaged when the envelope body is opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model Figure 1 .

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the envelope body of the present invention.

[0021] Figure 3 This is a schematic diagram of the overall structure of the utility model Figure 2 .

[0022] Figure 4 For this utility model Figure 3 A is an enlarged structural diagram.

[0023] Figure 5 This is a schematic diagram of the overall structure of the utility model Figure 3 .

[0024] [reference numerals]

[0025] 1. Envelope body; 101. Degradable paper layer; 102. Biodegradable film; 2. Opening; 3. Envelope strip; 4. Adhesive strip; 401. Tear strip; 402. Double-sided tape; 403. Protective film; 5. Crease line. DETAILED DESCRIPTION

[0026] Example:

[0027] like Figure 1-Figure 5 As shown, an embodiment of the present invention provides an environmentally friendly and degradable envelope, comprising an envelope body 1, an opening 2, an envelope strip 3, and an adhesive strip 4. The opening 2 is provided above the envelope body 1, and the envelope strip 3 is provided along the outer edge of the opening 2 in the transverse direction of the envelope body 1. The adhesive strip 4 is provided above the outer surface of the envelope body 1.

[0028] The envelope body 1 includes a degradable paper layer 101 and a biodegradable film 102 . The inner side of the envelope body 1 is the degradable paper layer 101 , and the outer side of the degradable paper layer 101 is fixedly provided with the biodegradable film 102 .

[0029] By providing the degradable paper layer 101 and the biodegradable film 102, the envelope body 1 can be degraded in a humid environment, and the biodegradable film 102 has a certain waterproof effect, which can prevent the paper documents inside the envelope body 1 from getting damp due to the humid environment, ensuring that the paper documents inside the envelope body 1 are not damaged by moisture.

[0030] In this embodiment, the thickness of the degradable paper layer 101 is 0.5-1 mm, and the thickness of the biodegradable film 102 is 0.01-0.02 mm.

[0031] In this embodiment, the degradable paper layer 101 is adhered to the degradable paper layer 101 by heat pressing, thereby ensuring the smoothness of the envelope body 1 .

[0032] In this embodiment, the adhesive strip 4 includes a tearable strip 401, double-sided tape 402 and a protective film 403. The bottom of the adhesive strip 4 is connected to the tearable strip 401 through an easy-tear line. The tearable strip 401 is connected to the outer surface of the envelope body 1 through an easy-tear line. The double-sided tape 402 is adhered to the bottom surface of the adhesive strip 4, and the protective film 403 is adhered to the side of the double-sided tape 402 away from the adhesive strip 4.

[0033] In this embodiment, a crease line 5 is provided at the connection between the envelope body 1 and the envelope strip 3 along the transverse direction of the envelope body 1 .

[0034] In this embodiment, when the envelope strip 3 is folded downward along the crease line 5, the envelope strip 3 can completely block the opening 2, and at this time the bottom level of the envelope strip 3 is lower than the top level of the adhesive strip 4, and the level of the double-sided tape 402 is higher than the level of the envelope strip 3.

[0035] By providing the adhesive strip 4, when sealing the opening on the envelope body 1, the envelope strip 3 is folded downward along the crease line 5 so that the envelope strip 3 blocks the upper opening 2 of the envelope body 1, and the envelope strip 3 is inserted between the adhesive strip 4 and the envelope body 1. By tearing off the protective film 403 and then adhering it to the surface of the envelope strip 3 with the double-sided tape 402, the envelope strip is positioned, so that the envelope strip 3 blocks the upper opening 2 on the envelope body 1, thereby achieving the sealing effect;

[0036] When the envelope body 1 needs to be opened, the tearable strip 401 is torn off. The tearable strip 401 is torn off through the easy-tear line connected to the envelope body 1 and the envelope strip 3, so that the adhesive strip 4 is disconnected from the envelope body 1. The adhesive strip 4 adheres to the envelope strip 3, which makes it convenient to open the envelope strip 3 and take out the documents in the envelope body 1. There is no need to open the envelope body 1 and take out the documents in the envelope body 1 by destroying the envelope strip 3, so as to prevent the documents in the envelope body 1 from being damaged when the envelope body 1 is opened.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. An environmentally friendly and degradable envelope, characterized by: The invention comprises an envelope body (1), an opening (2), an envelope strip (3) and an adhesive strip (4), wherein the opening (2) is provided above the envelope body (1), the envelope strip (3) is provided on the outer edge of the opening (2) along the transverse direction of the envelope body (1), and the adhesive strip (4) is provided above the outer surface of the envelope body (1); The envelope body (1) comprises a degradable paper layer (101) and a biodegradable film (102); the inner side of the envelope body (1) is the degradable paper layer (101), and the outer side of the degradable paper layer (101) is fixedly provided with the biodegradable film (102).

2. The environmentally friendly and degradable envelope according to claim 1, characterized in that: The thickness of the degradable paper layer (101) is 0.5-1 mm, and the thickness of the biodegradable film (102) is 0.01-0.02 mm.

3. The environmentally friendly and degradable envelope according to claim 2, characterized in that: The degradable paper layer (101) is adhered to the degradable paper layer (101) by means of heat pressing.

4. The environmentally friendly and degradable envelope according to claim 3, characterized in that: The adhesive strip (4) comprises a tearable strip (401), a double-sided adhesive tape (402) and a protective film (403); the bottom of the adhesive strip (4) is connected to the tearable strip (401) via an easy-tear line; the tearable strip (401) is connected to the outer surface of the envelope body (1) via the easy-tear line; the bottom surface of the adhesive strip (4) is adhered to the double-sided adhesive tape (402); and the protective film (403) is adhered to the side of the double-sided adhesive tape (402) away from the adhesive strip (4).

5. The environmentally friendly and degradable envelope according to claim 1, characterized in that: A crease line (5) is provided at the connection between the envelope body (1) and the envelope strip (3) along the transverse direction of the envelope body (1).

6. The environmentally friendly and degradable envelope according to claim 5, characterized in that: When the envelope strip (3) is folded downward along the crease line (5), the envelope strip (3) can completely block the opening (2), and at this time, the bottom level of the envelope strip (3) is lower than the top level of the adhesive strip (4), and the level of the double-sided tape (402) is higher than the level of the envelope strip (3).

Citation Information

Patent Citations

  • Degradable western style envelope

    CN212922603U