Novel environment-friendly adhesive sticker composite film

Abstract

The utility model discloses a novel environment-friendly non-setting adhesive composite film which comprises a film belt, the film belt comprises a release layer, an adhesive layer, a corrosion-resistant bottom layer, a first photocatalytic layer, a formaldehyde adsorption layer, a second photocatalytic layer, a decorative layer and an anti-puncture surface layer which are sequentially stacked from bottom to top, the adhesive layer comprises a plurality of adhesive tapes, and the adhesive tapes are arranged on the adhesive tape. A ventilation groove is formed between every two adjacent rubber strips, a plurality of first ventilation through holes are formed in the position, aligned to the middle of each ventilation groove, of the corrosion-resistant bottom layer, and a plurality of second ventilation through holes are vertically formed in the upper surface of the decoration layer. A third ventilation through hole is formed in the position, aligned with each second ventilation through hole, of the upper surface of the anti-puncture surface layer. According to the technical scheme, the structural design is reasonable, the formaldehyde adsorption performance is good, the surface is not prone to damage, fixing is convenient, and practicability is good.

Description

Technical Field

[0001] This utility model relates to the field of composite film technology, specifically to a novel environmentally friendly self-adhesive composite film. Background Technology

[0002] Composite films are materials made by combining two or more different material layers through a composite process. These different material layers can be plastics, paper, aluminum foil, etc., and are combined through methods such as bonding and pressing to form a new material with multiple functions.

[0003] However, existing composite membrane structures still have shortcomings: the structural design is unreasonable, it cannot adsorb formaldehyde or adsorbs only a small amount of formaldehyde, and even if it can adsorb formaldehyde, it is easy to become saturated and can no longer adsorb it once saturated; moreover, the surface of existing composite membranes is easily damaged by bumps; and the bottom surface of existing composite membranes has no adhesive, making it troublesome to fix during use and resulting in poor practicality. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a new type of environmentally friendly self-adhesive composite film with reasonable structural design, good formaldehyde adsorption performance, surface that is not easily damaged, convenient fixation and good practicality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a novel environmentally friendly self-adhesive composite film, comprising a film strip, wherein the film strip comprises, in sequence from bottom to top, a release layer, an adhesive layer, a corrosion-resistant underlayer, a first photocatalytic layer, a formaldehyde adsorption layer, a second photocatalytic layer, a decorative layer, and a puncture-resistant surface layer, wherein the adhesive layer comprises several adhesive strips, and a venting groove is provided between two adjacent adhesive strips; the corrosion-resistant underlayer is provided with several first venting holes aligned with the center of each venting groove; the upper surface of the decorative layer is provided with several second venting holes vertically; and the upper surface of the puncture-resistant surface layer is provided with a third venting hole aligned with each second venting hole.

[0006] The present invention is further configured such that: a dustproof shell is provided at one end of the membrane belt, a membrane belt receiving cavity is provided inside the dustproof shell, a rotating shaft is provided inside the membrane belt receiving cavity, one end of the membrane belt is bonded and fixed to the outer surface of the rotating shaft, a membrane belt outlet is provided on one side of the dustproof shell, and the end of the membrane belt away from the rotating shaft is aligned with the membrane belt outlet or extends out of the membrane belt outlet.

[0007] The present invention is further configured such that: several tear marks are provided on the upper surface of the membrane strip.

[0008] The present invention is further configured such that the material of the corrosion-resistant substrate is a polyurethane resin layer or a polytetrafluoroethylene layer, and the thickness of the corrosion-resistant substrate is 0.05-0.15mm.

[0009] The present invention is further configured such that: the first photocatalytic layer and the second photocatalytic layer are both composite photocatalytic functional coatings, and the thickness of the first photocatalytic layer and the second photocatalytic layer is 0.2-1.2 mm.

[0010] The present invention is further configured such that the formaldehyde adsorption layer is made of activated carbon fiber and the thickness of the formaldehyde adsorption layer is 0.5-3.5mm.

[0011] The present invention is further configured such that: the decorative layer is a holographic pattern layer, a coloring film, or a pigment coating, and the thickness of the decorative layer is 0.01-0.1 mm.

[0012] The present invention is further configured such that: the puncture-resistant surface layer is made of transparent PET material or TPU material, and the thickness of the puncture-resistant surface layer is 0.1-2.5mm.

[0013] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model has a reasonable structural design. The puncture-resistant surface layer is made of transparent PET or TPU material, which makes the surface of the composite film less prone to damage when bumped. The first, second, and third air vents have a reasonable structural design and good air permeability. The formaldehyde adsorption layer can effectively absorb formaldehyde in the air and improve the adsorption performance of formaldehyde. The first and second photocatalytic layers can effectively adsorb and catalyze formaldehyde.

[0014] In addition, the adhesive layer has more than three adhesive strips, all of which are self-adhesive strips, making it easy to fix and highly practical.

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the membrane strip according to an embodiment of the present invention;

[0018] Figure 3 This is a front view schematic diagram of an embodiment of the present utility model. Detailed Implementation

[0019] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] See Figures 1 to 3 This utility model discloses a novel environmentally friendly self-adhesive composite film, comprising a film strip 1. The film strip 1 includes a release layer 11, an adhesive layer 12, a corrosion-resistant underlayer 13, a first photocatalytic layer 14, a formaldehyde adsorption layer 15, a second photocatalytic layer 16, a decorative layer 17, and a puncture-resistant surface layer 18, which are stacked sequentially from bottom to top. The adhesive layer 12 includes several adhesive strips, with a ventilation groove 121 between two adjacent adhesive strips. The corrosion-resistant underlayer 13 has several first ventilation holes 131 positioned at the center of each ventilation groove. The upper surface of the decorative layer 17 has several second ventilation holes 171 vertically arranged. The upper surface of the puncture-resistant surface layer 18 has a third ventilation hole 181 positioned at each of the second ventilation holes.

[0021] Preferably, the adhesive layer 12 has three or more adhesive strips, all of which are self-adhesive strips. Each ventilation groove 121 has two or more first ventilation holes 131 in the middle position, and each first ventilation hole 131 has a second ventilation hole 171 directly above it, and each second ventilation hole 171 has a third ventilation hole 181 directly above it.

[0022] To make the structure of this utility model more reasonable, as a preferred embodiment, one end of the membrane belt 1 is provided with a dustproof shell 2, the dustproof shell 2 is provided with a membrane belt receiving cavity 21, the membrane belt receiving cavity 21 is provided with a rotating shaft 3, one end of the membrane belt 1 is bonded and fixed to the outer surface of the rotating shaft 3, and a membrane belt outlet 22 is provided on one side of the dustproof shell 2. The end of the membrane belt 1 facing away from the rotating shaft is aligned with the membrane belt outlet 22 or extends out of the membrane belt outlet.

[0023] Preferably, a front cover plate 23 is provided on the front end face of the dust cover 2, a front axle hole 231 is provided in the middle of the front cover plate 23, a rear axle hole is provided in the middle of the rear end face of the dust cover 2 aligned with the front axle hole, the front end of the rotating shaft 3 passes through the front axle hole 231, and the rear end of the rotating shaft 3 passes through the rear axle hole.

[0024] Several tear marks 19 are provided on the upper surface of the membrane strip 1.

[0025] The corrosion-resistant substrate 13 is made of polyurethane resin or polytetrafluoroethylene, and the thickness of the corrosion-resistant substrate 13 is 0.05-0.15mm.

[0026] The first photocatalytic layer 14 and the second photocatalytic layer 16 are both composite photocatalytic functional coatings, and the thickness of the first photocatalytic layer 14 and the second photocatalytic layer 16 is 0.2-1.2 mm.

[0027] The formaldehyde adsorption layer 15 is made of activated carbon fiber, and the thickness of the formaldehyde adsorption layer 15 is 0.5-3.5mm.

[0028] The decorative layer 17 is a holographic pattern layer, a colored film, or a pigment coating, and the thickness of the decorative layer 17 is 0.01-0.1 mm. Preferably, when the decorative layer 17 is a holographic pattern layer or a colored film, it is made of PET material; when the decorative layer 17 is a pigment coating, it is formed by mixing plant fiber coating with environmentally friendly adhesive and then coating and curing it.

[0029] The puncture-resistant surface layer 18 is made of transparent PET or TPU material, and the thickness of the puncture-resistant surface layer 18 is 0.1-2.5mm.

[0030] Preferably, in this embodiment, the adhesive layer 12, the corrosion-resistant underlayer 13, the first photocatalytic layer 14, the formaldehyde adsorption layer 15, the second photocatalytic layer 16, the decorative layer 17, and the puncture-resistant surface layer 18 are bonded together or pressed to form an integral structure.

[0031] In practical applications, the puncture-resistant surface layer 18 is made of transparent PET or TPU material, making the surface of the composite film less prone to damage from impacts. The first air vent 131, the second air vent 171, and the third air vent 181 have a reasonable structural design and good air permeability. The formaldehyde adsorption layer 15 can effectively absorb formaldehyde in the air, improving the adsorption performance of formaldehyde. The composite photocatalytic functional coating of the first photocatalytic layer 14 and the second photocatalytic layer 16 is made by surface modification of hydrophilic nano-TiO2 with 3-aminopropyltrimethoxysilane (APTMS) and loading carbon quantum dots synthesized from the gramineous plant switchgrass onto the TiO2. TiO2-carbon quantum dots were prepared with a particle size of 3–6 nm, exhibiting a good graphite phase structure. The photoluminescence of the carbon quantum dots showed a certain excitation dependence. The carbon quantum dot-functionalized TiO2 composite material not only had strong absorption in the ultraviolet region, but also had a wider absorption band in the wavelength range of 400–500 nm. The carbon quantum dot-supported TiO2 photocatalytic coating achieved purification efficiencies of 68.26% and 81.63% for formaldehyde gas under ultraviolet light and ultraviolet combined with visible light conditions, respectively. Therefore, the addition of the composite photocatalytic functional coating can effectively adsorb and catalyze formaldehyde.

[0032] In addition, the adhesive layer 12 has more than three adhesive strips, and all of them are self-adhesive strips, which are convenient to fix and have good practicality.

[0033] The above description of the specific embodiments of this utility model is only used to further illustrate this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-essential improvements and adjustments made to this utility model by technical engineers based on the above description of the utility model shall fall within the scope of protection of this utility model.

Claims

1. A novel environmentally friendly self-adhesive composite film, comprising a film strip (1), characterized in that: The membrane strip (1) includes a release layer (11), an adhesive layer (12), a corrosion-resistant underlayer (13), a first photocatalytic layer (14), a formaldehyde adsorption layer (15), a second photocatalytic layer (16), a decorative layer (17), and a puncture-resistant surface layer (18) stacked sequentially from bottom to top. The adhesive layer (12) includes several adhesive strips, and a venting groove (121) is provided between two adjacent adhesive strips. The corrosion-resistant underlayer (13) is provided with several first venting holes (131) aligned with the middle of each venting groove. Several second venting holes (171) are vertically provided on the upper surface of the decorative layer (17). A third venting hole (181) is provided on the upper surface of the puncture-resistant surface layer (18) aligned with each second venting hole.

2. The novel environmentally friendly self-adhesive composite film according to claim 1, characterized in that: The membrane belt (1) is provided with a dustproof shell (2) at one end. The dustproof shell (2) is provided with a membrane belt receiving cavity (21). The membrane belt receiving cavity (21) is provided with a rotating shaft (3). One end of the membrane belt (1) is bonded and fixed to the outer surface of the rotating shaft (3). The dustproof shell (2) is provided with a membrane belt outlet (22) on one side. The membrane belt (1) is positioned opposite the rotating shaft end and aligned with the membrane belt outlet (22) or extends out of the membrane belt outlet.

3. The novel environmentally friendly self-adhesive composite film according to claim 2, characterized in that: Several tear marks (19) are provided on the upper surface of the membrane strip (1).

4. The novel environmentally friendly self-adhesive composite film according to claim 3, characterized in that: The corrosion-resistant substrate (13) is made of polyurethane resin or polytetrafluoroethylene, and the thickness of the corrosion-resistant substrate (13) is 0.05-0.15 mm.

5. The novel environmentally friendly self-adhesive composite film according to claim 4, characterized in that: The first photocatalytic layer (14) and the second photocatalytic layer (16) are both composite photocatalytic functional coatings, and the thickness of the first photocatalytic layer (14) and the second photocatalytic layer (16) is 0.2-1.2 mm.

6. The novel environmentally friendly self-adhesive composite film according to claim 5, characterized in that: The formaldehyde adsorption layer (15) is made of activated carbon fiber, and the thickness of the formaldehyde adsorption layer (15) is 0.5-3.5 mm.

7. The novel environmentally friendly self-adhesive composite film according to claim 6, characterized in that: The decorative layer (17) is a holographic pattern layer, a coloring film, or a pigment coating, and the thickness of the decorative layer (17) is 0.01-0.1 mm.

8. The novel environmentally friendly self-adhesive composite film according to claim 7, characterized in that: The puncture-resistant surface layer (18) is made of transparent PET or TPU material, and the thickness of the puncture-resistant surface layer (18) is 0.1-2.5mm.

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