Waterproof bulge-preventing label
By incorporating a composite label layer, adhesive layer, and venting slant holes into the label design, the problems of bulging during label application and insufficient waterproof performance are solved, achieving efficient label application and waterproofing, and extending the label's service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG BOKMAN INTELLIGENT PACKAGING TECH CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-01
AI Technical Summary
Existing waterproof labels are prone to bulging during application, have poor air venting performance, and are not waterproof enough, resulting in poor label visibility and a shortened lifespan.
The design incorporates a composite label layer, adhesive layer, annular groove, and venting oblique holes, combined with a three-layer composite structure of polyester film base layer, printing layer, and coating layer. The mesh structure of the adhesive layer forms a gas guiding channel, and the high waterproofness and curved surface design of the waterproof layer enable the effective export of gas and water.
It effectively avoids bulging during label application, improves the adhesion effect, and enhances waterproof performance through a multi-layer composite structure, preventing moisture erosion and extending the label's lifespan.
Smart Images

Figure CN224190595U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waterproof label technology, specifically a waterproof label that prevents bulging. Background Technology
[0002] Self-adhesive labels are a composite material consisting of a face material, an adhesive, and a backing paper. The back is coated with pressure-sensitive adhesive. When using them, the backing paper can be peeled off and the labels can be directly pasted. Their structure is similar to a "sandwich". The face material can be paper or film, and there are various types of adhesives. The backing paper is mostly glassine paper or PET transparent backing paper.
[0003] A patent with authorization announcement number "CN222672505U" discloses a waterproof self-adhesive label that prevents blistering. The label body includes a label body with a tear strip connected to its outer edge and a release paper layer adhered to its lower side. The release paper layer has a notch on one edge of the tear strip. The label body surface has a waterproof layer, and the inner layer of the waterproof layer has a heat-resistant layer. The inner layer of the heat-resistant layer has a cardboard base layer. The cardboard base layer has air holes inside, and warp and weft threads are inserted and fixed inside. This invention solves the problem that existing anti-blistering self-adhesive labels are still difficult to tear and easily torn at the edges during use.
[0004] However, this device has the following shortcomings:
[0005] 1. If the bottom of the label is not fully vented during labeling, it will cause bulging after the label is pasted. The above-mentioned label has poor ventilation performance during pasting, which easily leads to label bulging. This not only affects the appearance of the label, but also allows moisture to enter the label and corrode it.
[0006] 2. The above-mentioned labels have poor waterproof performance and the printed layer is easily damaged by moisture, which makes the labels unusable and reduces their service life. Utility Model Content
[0007] The purpose of this invention is to provide a waterproof label that prevents bulging, thereby solving the existing problems mentioned in the background art.
[0008] To achieve the above objectives, this utility model provides the following technical solution: a waterproof label that prevents bulging, comprising a composite label layer, a waterproof layer on the outer side of the composite label layer, an adhesive layer on the bottom of the composite label layer, a strong adhesive layer on the bottom of the waterproof layer, release paper on the bottom of the adhesive layer and the strong adhesive layer, an annular groove at the bottom edge of the composite label layer, and multiple sets of venting oblique holes communicating with the annular groove on the outer side of the waterproof layer;
[0009] The composite label layer includes a polyester film base layer, a printing layer, and a laminating layer. The printing layer is disposed on top of the polyester film base layer, the laminating layer is disposed on top of the printing layer, and the adhesive layer is located at the bottom of the polyester film base layer.
[0010] Preferably, the adhesive layer is in the shape of a grid, and multiple flow channels are formed on the inner side of the adhesive layer. The grid structure of the adhesive layer can form an air channel at the bottom of the label to prevent the label from bulging.
[0011] Preferably, the bottom of the release paper is provided with an easy-tear strip to facilitate tearing the release paper.
[0012] Preferably, the waterproof layer is made of polyurethane, and the top surface of the waterproof layer is arc-shaped. Polyurethane has high waterproof performance, which can improve the waterproofness of the label.
[0013] Preferably, an adhesive layer is provided between the polyester film base layer and the coating layer, and the adhesive layer is made of acrylic resin for bonding the polyester film base layer and the coating layer.
[0014] Preferably, the coating layer is made of polyethylene, which has good waterproof performance.
[0015] Compared with the prior art, the beneficial effects of this utility model are: the waterproof label prevents bulging;
[0016] 1. Through the cooperation between the composite label layer, adhesive layer, annular groove and venting oblique hole, the label passes through the grid structure of the adhesive layer, forming an air guide channel at the bottom of the label. When the label is pasted, the air at the bottom can be guided through the flow channel and discharged outward from the venting oblique hole, which can avoid the air bubbles remaining and the label forming bulges, thus improving the label pasting effect.
[0017] 2. Through the cooperation of the polyester film base layer, printing layer, laminating layer and waterproof layer, the label achieves double-sided protection through the three-layer composite structure of the composite label layer, which improves the waterproof performance of the label. At the same time, the high waterproofness of the waterproof layer and the curved surface design on the top can guide water flow and prevent water from accumulating on the top of the label, further improving the waterproof effect of the label and preventing the label from being eroded and damaged by moisture. Attached Figure Description
[0018] Figure 1 This is a perspective view of the present utility model;
[0019] Figure 2 This is a front sectional view of the present invention;
[0020] Figure 3 This is a bottom view of the present invention;
[0021] Figure 4 For the present utility model Figure 2 An enlarged schematic diagram of the structure at point A.
[0022] In the diagram: 1. Composite label layer; 11. Polyester film base layer; 12. Printing layer; 13. Lamination layer; 2. Waterproof layer; 3. Adhesive layer; 4. Strong adhesive layer; 5. Release paper; 6. Annular groove; 7. Venting oblique hole. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figure 1-4 The present invention provides an embodiment of a waterproof label that prevents bulging, comprising a composite label layer 1, a waterproof layer 2 on the outer side of the composite label layer 1, the waterproof layer 2 being made of polyurethane, the top surface of the waterproof layer 2 being arc-shaped, polyurethane having high waterproof performance, which can improve the waterproofness of the label, and through the arc-shaped top surface structure of the waterproof layer 2, water flow from the top of the label can be quickly diverted and discharged, preventing water accumulation, and an adhesive layer 3 being provided at the bottom of the composite label layer 1.
[0025] The adhesive layer 3 is grid-shaped, and multiple flow channels are opened on the inner side of the adhesive layer 3. Through the grid structure of the adhesive layer 3, an air channel is formed at the bottom of the label to prevent the label from bulging. A strong adhesive layer 4 is provided at the bottom of the waterproof layer 2. A release paper 5 is provided at the bottom of the adhesive layer 3 and the strong adhesive layer 4. An easy-tear strip is provided at the bottom of the release paper 5 to facilitate tearing the release paper 5. An annular groove 6 is opened at the bottom edge of the composite label layer 1. Multiple sets of venting oblique holes 7 connected to the annular groove 6 are opened on the outer side of the waterproof layer 2.
[0026] The composite label layer 1 includes a polyester film base layer 11, a printing layer 12, and a laminating layer 13. The printing layer 12 is disposed on the top of the polyester film base layer 11, and the laminating layer 13 is disposed on the top of the printing layer 12. An adhesive layer is disposed between the polyester film base layer 11 and the laminating layer 13, and the adhesive layer is made of acrylic resin for bonding the polyester film base layer 11 and the laminating layer 13. At the same time, the acrylic resin has good water resistance and corrosion resistance, which can prevent the printing layer 12 from being damaged. The adhesive layer 3 is located at the bottom of the polyester film base layer 11.
[0027] Working principle: When using this label, the release paper 5 at the bottom of the label can be torn off using the easy-tear strip, and then the label can be pasted on the designated position for use. When the label is pasted, the grid structure of the adhesive layer 3 can form an air channel at the bottom of the label, and the airflow at the bottom of the label can flow through the air channel. The airflow through the air channel can enter the annular groove 6, and then be discharged outward from the exhaust oblique hole 7, thereby preventing the label from becoming fixed. The strong adhesive layer 4 can improve the pasting stability of the label.
[0028] The high waterproof performance of the polyester film base layer 11 and the coating layer 13 enables the composite label layer 1 to have good waterproof performance in the three-layer composite structure, which can prevent the label from being damaged by water vapor. The waterproof layer 2 can further improve the waterproof performance of the label, and due to the arc shape of the top of the waterproof layer 2, water droplets can be quickly diverted outward to prevent water from accumulating on the label.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0030] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
Claims
1. A waterproof label that prevents blistering, comprising a composite label layer (1), characterized in that: A waterproof layer (2) is provided on the outside of the composite label layer (1), an adhesive layer (3) is provided at the bottom of the composite label layer (1), a strong adhesive layer (4) is provided at the bottom of the waterproof layer (2), and release paper (5) is provided at the bottom of the adhesive layer (3) and the strong adhesive layer (4). An annular groove (6) is provided at the bottom edge of the composite label layer (1), and multiple sets of venting oblique holes (7) connected to the annular groove (6) are provided on the outside of the waterproof layer (2). The composite label layer (1) includes a polyester film base layer (11), a printing layer (12) and a coating layer (13). The top of the polyester film base layer (11) is provided with the printing layer (12), the top of the printing layer (12) is provided with the coating layer (13), and the adhesive layer (3) is located at the bottom of the polyester film base layer (11).
2. The waterproof label to prevent blistering according to claim 1, characterized in that: The adhesive layer (3) is in the shape of a grid, and multiple sets of flow channels are opened on the inner side of the adhesive layer (3).
3. The waterproof label to prevent blistering according to claim 1, characterized in that: The bottom of the release paper (5) is provided with an easy-tear strip.
4. The waterproof label to prevent blistering according to claim 1, characterized in that: The waterproof layer (2) is made of polyurethane material, and the top surface of the waterproof layer (2) is arc-shaped.
5. A waterproof label to prevent blistering according to claim 1, characterized in that: An adhesive layer is provided between the polyester film base layer (11) and the film layer (13), and the adhesive layer is made of acrylic resin.
6. A waterproof label to prevent bulging according to claim 1, characterized in that: The coating layer (13) is made of polyethylene.
Citation Information
Patent Citations
Waterproof self-adhesive label capable of avoiding bumps
CN222672505U