PET adhesive sticker
Patent Information
- Application Number
- CN202522723938.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-23
- Publication Date
- 2026-10-13
- Estimated Expiration
- 2035-12-23
AI Technical Summary
[0002]面积较大的不干胶在贴合过程中会出现一个问题，在贴合时容易出现褶皱的情况
本申请中，塑料层的增设可增强 PET 不干胶的整体挺度与抗弯折能力，有效缓解大面积贴合作业中因材料柔性过大、拉伸变形导致的褶皱问题，保障贴合面的平整度与一致性，在PET膜层贴合完毕之后，可以将塑料层取下，从而使PET膜层能够被没有褶皱的贴下，增加美观性。
Smart Images
Figure CN224849029U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of self-adhesive technology, and in particular to a PET self-adhesive. Background Technology
[0002] A problem arises during the application of large-area self-adhesive labels: wrinkles tend to form during the application process. Summary of the Invention
[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a PET self-adhesive label.
[0004] The objective of this utility model can be achieved through the following technical solutions: A PET self-adhesive label includes: release paper, a PET film layer, and a plastic layer. The PET film layer is disposed on the release paper, and a first adhesive layer is disposed on the PET film layer, with the first adhesive layer facing the release paper. The plastic layer is disposed on the PET film layer, and a second adhesive layer is disposed on the plastic layer, with the second adhesive layer facing the PET film layer.
[0005] In the aforementioned PET self-adhesive label, the plastic layer is transparent and has a light transmittance of at least 90%.
[0006] In the above-mentioned PET self-adhesive, the plastic layer is made of soft PMMA with a thickness of 0.1-0.5 mm.
[0007] In the above-mentioned PET self-adhesive, the second adhesive layer is a low-tack, micro-tack type pressure-sensitive adhesive.
[0008] Compared with the prior art, this application has the following advantages: In this application, the addition of a plastic layer can enhance the overall stiffness and bending resistance of the PET self-adhesive, effectively alleviate the wrinkling problem caused by excessive material flexibility and stretching deformation in large-area lamination operations, ensure the flatness and consistency of the lamination surface, and after the PET film layer is lamination is completed, the plastic layer can be removed, so that the PET film layer can be lamination without wrinkles, increasing aesthetics. Attached Figure Description
[0009] Figure 1 This is a schematic diagram in this application.
[0010] In the picture, 2. Release paper; 3. PET film layer; 4. Plastic layer; 5. First adhesive layer; 6. Second adhesive layer. Detailed Implementation
[0011] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0012] like Figure 1 As shown, a PET self-adhesive label includes: release paper 2, PET film layer 3, and plastic layer 4. The PET film layer 3 is disposed on the release paper 2, and a first adhesive layer 5 is disposed on the PET film layer 3, with the first adhesive layer 5 facing the release paper 2. The plastic layer 4 is disposed on the PET film layer 3, and a second adhesive layer 6 is disposed on the plastic layer 4, with the second adhesive layer 6 facing the PET film layer 3.
[0013] In this application, the addition of plastic layer 4 enhances the overall stiffness and bending resistance of the PET self-adhesive, effectively alleviating wrinkling problems caused by excessive material flexibility and stretching deformation during large-area lamination operations. This ensures the flatness and consistency of the lamination surface. After the PET film layer 3 is laminated, the plastic layer 4 can be removed, allowing the PET film layer 3 to be laminated without wrinkles, thus increasing aesthetics. During use, the release paper 2 is first peeled off, and then the film is laminated. The plastic layer 4 prevents wrinkles from forming in the PET film layer 3.
[0014] Specifically, the plastic layer 4 is transparent, and its light transmittance is at least higher than 90%.
[0015] The transparent and highly transparent (≥90%) plastic layer 4 will not obscure the patterns, text or markings on the surface of the PET film, and the orientation of the internal pattern can be clearly distinguished during the application process.
[0016] Specifically, the plastic layer 4 is made of soft PMMA with a thickness of 0.1-0.5 mm.
[0017] The soft PMMA material has moderate flexibility and a thin design of 0.1-0.5mm, which can be used for bonding to irregularly shaped substrates such as curved surfaces. After bonding, it can adhere tightly to the surface of the substrate and is not prone to problems such as lifting or hollowing. At the same time, it retains sufficient structural stiffness to prevent excessive stretching and deformation of large areas of self-adhesive during operation, effectively suppressing the formation of wrinkles.
[0018] Furthermore, the thickness of the plastic layer 4 is any one of 0.1, 0.2, 0.3, 0.4, or 0.5 mm. Of course, other thicknesses are also possible.
[0019] Specifically, the second adhesive layer 6 is a low-tack, micro-tack type pressure-sensitive adhesive.
[0020] Low-tack, micro-adhesive pressure-sensitive adhesives can prevent adhesive residue from appearing on the PET film layer 3 when the plastic layer 4 is removed. The low-tack, micro-adhesive pressure-sensitive adhesive can be any of the following: low-tack acrylic pressure-sensitive adhesives, silicone pressure-sensitive adhesives, or hot-melt low-tack pressure-sensitive adhesives.
[0021] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture, as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.
[0022] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Meanwhile, the meaning of "and / or" throughout the text includes three solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.
[0023] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.
[0024] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from this utility model or exceeding the scope defined by the appended claims.
Claims
1. A PET self-adhesive label, characterized in that, include: Release paper (2), PET film layer (3), and plastic layer (4). The PET film layer (3) is disposed on the release paper (2), and a first adhesive layer (5) is disposed on the PET film layer (3), with the first adhesive layer (5) facing the release paper (2). The plastic layer (4) is disposed on the PET film layer (3), and a second adhesive layer (6) is disposed on the plastic layer (4), with the second adhesive layer (6) facing the PET film layer (3).
2. The PET self-adhesive label according to claim 1, characterized in that, The plastic layer (4) is transparent and has a light transmittance of at least 90%.
3. The PET self-adhesive label according to claim 1, characterized in that, The plastic layer (4) is made of soft PMMA with a thickness of 0.1-0.5 mm.
4. The PET self-adhesive label according to claim 1, characterized in that, The second adhesive layer (6) is a low-tack, micro-tack type pressure-sensitive adhesive.