Waterproof and breathable masking paper composite adhesive tape

Abstract

The utility model relates to a waterproof and breathable masking paper composite adhesive tape which comprises a reel and an adhesive tape body, the adhesive tape body is of a four-layer structural design and comprises an anti-sticking layer, a base material layer, a waterproof and breathable layer and an adhesive layer which are sequentially connected from the outer layer to the inner layer, the manufacturing process of the adhesive tape is simplified, and the production efficiency is improved; the anti-sticking layer comprises polytetrafluoroethylene and a titanium dioxide / graphene coating and is used for improving the anti-sticking effect and the ultraviolet-proof performance of the adhesive tape; the waterproof breathable layer comprises expanded polytetrafluoroethylene and nanofibers and is used for improving the waterproof and breathable performance of the adhesive tape and ensuring that the stable effect can be kept in various environments; the adhesive layer comprises polyurethane, a water-based acrylic pressure-sensitive adhesive and an organic silicon modifier, and nano silicon dioxide is uniformly distributed in the water-based acrylic pressure-sensitive adhesive; the adhesive force of the adhesive tape can be improved, cohesive strength is enhanced, weather resistance is improved, aging is delayed, degumming and wiredrawing phenomena are reduced, adhesive residues are reduced, and use experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of masking tape, especially relates to a waterproof and breathable masking tape composite tape. BACKGROUND

[0002] Masking tape, as a widely used adhesive material in decoration, spraying, electronics and other fields, plays an important role in modern industrial production and daily life. In the decoration and spraying industry, masking tape is used to mask areas that do not need to be sprayed, ensuring clear spraying boundaries and improving product aesthetics. In electronics manufacturing, it is used to fix electronic components and protect circuit boards.

[0003] However, traditional masking tape has many defects. In terms of waterproof and breathable performance, existing masking tape cannot meet the needs of some applications sensitive to environmental humidity. For example, in humid environments, moisture can easily penetrate the tape into the masked area, causing the coating to blister and peel off. In electronics production, if the tape's waterproof and breathable performance is not good, moisture may corrode electronic components, affecting the stability and service life of the equipment. The ability to resist ultraviolet rays also needs to be improved. Prolonged exposure to sunlight can cause the tape to age, discolor, and lose adhesion, reducing its service life. Especially in outdoor decoration and automotive spraying, ultraviolet radiation can accelerate the damage of the tape, increasing the cost and maintenance workload. These problems limit the application and development of masking tape in more fields. SUMMARY

[0004] Therefore, it is necessary to provide a waterproof and breathable masking tape composite tape.

[0005] The technical scheme for solving the above technical problems is as follows: a waterproof and breathable masking tape composite tape, comprising: a reel and a tape body, the tape body is wound on the reel, the tape body comprises, from the outer layer to the inner layer, an anti-sticking layer, a base material layer, a waterproof and breathable layer, and an adhesive layer; the anti-sticking layer comprises polytetrafluoroethylene and a titanium dioxide / graphene coating, the waterproof and breathable layer comprises expanded polytetrafluoroethylene and nanofibers; the adhesive layer comprises polyurethane, water-based acrylic pressure-sensitive adhesive, and an organic silicon modifier, the water-based acrylic pressure-sensitive adhesive is uniformly mixed with nano-silicon dioxide.

[0006] In one embodiment, the titanium dioxide / graphene coating is coated on the side of the polytetrafluoroethylene close to the base material layer.

[0007] In one embodiment, the thickness of the anti-sticking layer is 4-7 microns.

[0008] In one embodiment, the expanded polytetrafluoroethylene is arranged at the bottom of the base material layer, and the smooth surface of the expanded polytetrafluoroethylene is connected with the lower end surface of the base material layer.

[0009] In one embodiment, the nanofiber is polyacrylonitrile fiber disposed on the side of the expanded polytetrafluoroethylene away from the base layer.

[0010] In one embodiment, the waterproof and breathable layer has a thickness of 13-17 microns.

[0011] In one embodiment, the polyurethane is disposed on the bottom of the waterproof and breathable layer, the water-based acrylic pressure-sensitive adhesive is disposed on the bottom of the polyurethane, and the silicone modifier is disposed on the bottom of the water-based acrylic pressure-sensitive adhesive.

[0012] In one embodiment, the silicone modifier is polydimethylsiloxane.

[0013] In one embodiment, the silicone modifier has a thickness of 0.1-0.5 microns.

[0014] In one embodiment, the adhesive layer has a thickness of 10.1-10.5 microns.

[0015] The waterproof and breathable masking tape composite adhesive tape has the advantages that: the adhesive tape body has a four-layer structure design, the adhesive tape body comprises, from the outer layer to the inner layer, a release layer, a base layer, a waterproof and breathable layer, and an adhesive layer, the manufacturing process of the adhesive tape is simplified, and the production efficiency is improved; the release layer comprises polytetrafluoroethylene and a titanium dioxide / graphene coating, the release layer can not only effectively prevent adhesion, but also can enhance the ultraviolet resistance and prolong the service life; the waterproof and breathable layer comprises expanded polytetrafluoroethylene and nanofiber, the expanded polytetrafluoroethylene has excellent waterproofness and breathability due to the microporous structure, the nanofiber further improves the breathability, the overall tensile strength and tear resistance are improved, and the adhesive tape is not easy to break during tearing; the adhesive layer has a multiple composite structure of polyurethane, water-based acrylic pressure-sensitive adhesive, and a silicone modifier, the polyurethane can enhance the bonding force between the adhesive layer and the waterproof and breathable layer and prevent delamination, the water-based acrylic pressure-sensitive adhesive has excellent adhesion, nano-silicon dioxide is uniformly distributed in the water-based acrylic pressure-sensitive adhesive, the nano-silicon dioxide has a large specific surface area and high surface activity, the contact area between the adhesive layer and the surface of a bonded object is increased, the adhesion, the cohesive strength, and the weather resistance are enhanced, the aging process of the adhesive layer is delayed, and the phenomena of delamination and wire drawing during use are reduced; the silicone modifier can improve the water resistance and high-temperature resistance of the adhesive layer, reduce the surface energy of the back of the adhesive tape, reduce the surface friction coefficient, the bonding force between the adhesive layer and the waterproof and breathable layer is greater than the adhesion between the adhesive tape and the bonded object, separation occurs between the adhesive layer and the bonded object during unwinding, rather than in the adhesive tape, the integrity and use convenience of the adhesive tape are ensured, and adhesive residue is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the present application, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 Structure diagram of a waterproof and breathable art paper composite adhesive tape of an embodiment;

[0018] Figure 2 Structure diagram of a cross section of a tape body of an embodiment;

[0019] Figure 3 Structure diagram of a cross section of an anti-sticking layer of an embodiment;

[0020] Figure 4 Structure diagram of a cross section of a waterproof and breathable layer of an embodiment;

[0021] Figure 5 Structure diagram of a cross section of a glue layer of an embodiment.

[0022] In the drawings, 10, waterproof and breathable art paper composite adhesive tape; 100, reel; 200, tape body; 300, anti-sticking layer; 310, polytetrafluoroethylene; 320, titanium dioxide / graphene coating; 400, base material layer; 500, waterproof and breathable layer; 510, expanded polytetrafluoroethylene; 520, nanofiber; 600, glue layer; 610, polyurethane; 620, water-based acrylic pressure-sensitive adhesive; 630, silicone modifier. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions of the present application will be further described below in combination with the drawings of the embodiments of the present application. The present application is not limited to the following specific embodiments.

[0024] It should be understood that the same or similar reference numbers in the drawings of the embodiments correspond to the same or similar components. In the description of the present application, it should be understood that if there are terms "upper", "lower", "front", "back", "left", "right", "top", "bottom" and the like indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation of the present patent, for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0025] In one embodiment, as shown in Figures 1 to 5 A waterproof and breathable masking tape composite tape 10 comprises a reel 100 and a tape body 200, the tape body 200 is wound on the reel 100, and the tape body 200 comprises, from the outer layer to the inner layer, an anti-sticking layer 300, a base material layer 400, a waterproof and breathable layer 500, and an adhesive layer 600; the anti-sticking layer 300 comprises polytetrafluoroethylene 310 and titanium dioxide / graphene coating 320, the waterproof and breathable layer 500 comprises expanded polytetrafluoroethylene 510 and nanofiber 520; the adhesive layer 600 comprises polyurethane 610, water-based acrylic pressure-sensitive adhesive 620, and silicone modifier 630, and the water-based acrylic pressure-sensitive adhesive 620 is uniformly mixed with nano silicon dioxide.

[0026] In this embodiment, the spool 100 has a cylindrical structure, and the length of the spool 100 matches the width of the tape body 200. The tape body 200 is neatly wound on the spool 100. The tape body 200 includes an anti-stick layer 300, a substrate layer 400, a waterproof and breathable layer 500, and an adhesive layer 600. The substrate layer 400 is a masking tape layer, which is disposed at the bottom of the anti-stick layer 300. The waterproof and breathable layer 500 is disposed at the bottom of the substrate layer 400, and the adhesive layer 600 is disposed at the bottom of the waterproof and breathable layer 500. The layers are tightly bonded to ensure the stability and functionality of the overall structure. The anti-stick layer 300 includes polytetrafluoroethylene (PTFE) 310 and a titanium dioxide / graphene coating 320. PTFE 310 provides excellent anti-stick properties. The titanium dioxide / graphene coating 320 can block most ultraviolet rays and harmful substances, extending the service life of the tape. The waterproof and breathable layer 500, composed of expanded polytetrafluoroethylene 510 and nanofibers 520, is both moisture-proof and breathable. The nanofibers 520 can enhance the mechanical strength of the waterproof and breathable layer 500 and improve its tear resistance. The polyurethane 610, water-based acrylic pressure-sensitive adhesive 620, and silicone modifier 630 in the adhesive layer 600 work synergistically to provide excellent adhesion. The water-based acrylic pressure-sensitive adhesive 620 contains uniformly distributed nano-silica, which further enhances the weather resistance and durability of the adhesive layer 600, ensuring that the tape maintains stable adhesion performance in various environments.

[0027] In one embodiment, such as Figure 3 As shown, the titanium dioxide / graphene coating 320 is applied to the side of the polytetrafluoroethylene (PTFE) 310 near the substrate layer 400; the thickness of the anti-stick layer 300 is 4-7 micrometers. Specifically, after corona treatment of PTFE 310, the titanium dioxide / graphene coating 320 is firmly adhered to the surface of PTFE 310 using magnetron sputtering technology, without the need for additional adhesives; wherein, the thickness of the PTFE 310 film is 3-5 micrometers, and the thickness of the titanium dioxide / graphene coating 320 is 1-2 micrometers, so the thickness of the entire anti-stick layer 300 is controlled to be 4-7 micrometers. PTFE 310 itself has extremely low surface energy and good non-stick properties, and is a commonly used anti-stick material. The titanium dioxide / graphene coating 320 applied to the side of PTFE 310 near the substrate layer 400 can effectively block ultraviolet rays, increase thermal conductivity and mechanical strength, and prevent local overheating and aging, thereby significantly improving the overall durability and stability of the tape.

[0028] In one embodiment, such as Figure 4As shown, the expanded polytetrafluoroethylene 510 is arranged at the bottom of the substrate layer 400, and the smooth surface of the expanded polytetrafluoroethylene 510 is connected with the lower end surface of the substrate layer 400; the nanofiber 520 is polyacrylonitrile fiber, which is arranged on the side of the expanded polytetrafluoroethylene 510 away from the substrate layer 400; the waterproof and breathable layer 500 has a thickness of 13-17 microns. Specifically, the expanded polytetrafluoroethylene 310 film has a smooth surface and a rough surface, the smooth surface of the expanded polytetrafluoroethylene 310 is connected with the bottom of the substrate layer 400, and the rough surface of the expanded polytetrafluoroethylene 310 is closely combined with the nanofiber 520, wherein the nanofiber 520 is polyacrylonitrile treated by electrospinning, and has a thickness of 5-7 microns; the expanded polytetrafluoroethylene 310 film has a thickness of 8-10 microns; the micropore diameter of the expanded polytetrafluoroethylene 510 is smaller than the water droplet diameter of liquid water, but larger than the water vapor molecule diameter, which effectively prevents moisture from penetrating, while allowing water vapor to pass through, ensuring that the material remains dry in a humid environment; the polyacrylonitrile fiber has high strength and modulus, and after being compounded with the expanded polytetrafluoroethylene 510, it can effectively disperse stress, improve the overall tensile strength and tear resistance of the waterproof and breathable layer 500, prolong the service life of the adhesive tape, and further enhance the comprehensive performance of the material, so that it can work stably in various complex environments.

[0029] In one embodiment, as Figure 5As shown, the polyurethane 610 is arranged at the bottom of the waterproof and breathable layer 500, the water-based acrylic pressure-sensitive adhesive 620 is arranged at the bottom of the polyurethane 610, and the organosilicon modifier 630 is arranged at the bottom of the water-based acrylic pressure-sensitive adhesive 620; the organosilicon modifier 630 is polydimethylsiloxane; the thickness of the organosilicon modifier 630 is 0.1-0.5 microns; and the thickness of the adhesive layer 600 is 10.1-10.5 microns. Specifically, the adhesive layer 600 is arranged at the bottom of the waterproof and breathable layer 500, and has a three-layer composite structure, sequentially comprising the polyurethane 610, the water-based acrylic pressure-sensitive adhesive 620 and the organosilicon modifier 630; the thickness of the polyurethane 610 is 2-3 microns, the polyurethane 610 is tightly combined with the waterproof and breathable layer 500, and is used for enhancing the bonding force with the waterproof and breathable layer 500 and preventing delamination; the thickness of the water-based acrylic pressure-sensitive adhesive 620 is 8-12 microns, the water-based acrylic pressure-sensitive adhesive 620 is arranged at the bottom of the polyurethane 610, and the water-based acrylic pressure-sensitive adhesive 620 is uniformly distributed with nano-silicon dioxide particles, the mass percentage of the nano-silicon dioxide is 2-3 wt%, the particle size is 20-50 nanometers, the nano-silicon dioxide is arranged for enhancing the bonding strength, reducing the phenomena of delamination and wire drawing of the adhesive layer during use, improving the weather resistance and creep resistance, and delaying the aging process of the adhesive layer 600; the organosilicon modifier 630 is polydimethylsiloxane, and the thickness is 0.1-0.5 microns; the polydimethylsiloxane is arranged at the bottom of the water-based acrylic pressure-sensitive adhesive 620, reduces the surface energy of the back surface of the adhesive tape, reduces the surface friction coefficient, makes the adhesive tape easy to peel off during the pasting process, reduces the adhesive residue, and improves the stability of the adhesive tape in a high-temperature and high-humidity environment.

[0030] Compared with the prior art, the utility model has at least the following advantages:

[0031] The utility model provides a waterproof and breathable masking tape composite adhesive tape, the adhesive tape body is four layer structure design, including the adhesion prevention layer, substrate layer, waterproof and breathable layer and viscose layer that connect gradually from outer layer to inner layer, has simplified the manufacturing process of adhesive tape, improved production efficiency, the adhesion prevention layer includes polytetrafluoroethylene and titanium dioxide / graphene coating, not only can effectively prevent adhesion, can also enhance the ultraviolet resistance, prolong the service life, the waterproof and breathable layer includes puffed polytetrafluoroethylene and nanofiber, and the puffed polytetrafluoroethylene has excellent waterproofness and breathability because of its microporous structure, and the nanofiber further improves its ventilation effect, improves the overall tensile strength and tear resistance simultaneously, so that the adhesive tape is not easy to break in the tearing process, the viscose layer is the multiple composite structure of polyurethane, water-based acrylic pressure sensitive adhesive and silicone modifier, wherein the polyurethane can enhance the adhesion of viscose layer and waterproof and breathable layer, prevent delamination, water-based acrylic pressure sensitive adhesive provides excellent adhesion, and nanosilica is uniformly distributed in water-based acrylic pressure sensitive adhesive, and the nanosilica has large specific surface area and high surface activity, can increase the contact area of viscose layer and the surface of the adherend, enhance the adhesion, enhance the cohesive strength and improve the weather resistance, delay the aging process of viscose layer, reduce the phenomena such as delamination and wire drawing in the use process, the silicone modifier can improve the water resistance and high temperature resistance of viscose layer, reduce the surface energy of the back of adhesive tape simultaneously, reduce the surface friction coefficient, so that the adhesion of viscose layer and waterproof and breathable layer is greater than the adhesion of glue and the adherend, so that when unwinding, separation occurs between viscose layer and the adherend, rather than in the interior of adhesive tape, ensure the integrity and use convenience of adhesive tape, reduce glue residue.

[0032] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the implementation mode of the utility model. For ordinary skilled person in the art, other different forms of changes or changes can be made on the basis of the above description. Here, it is not necessary and impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made in the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A waterproof and breathable composite masking tape, characterized by, Comprise: A reel and a tape body, the tape body is wound on the reel, the tape body comprises, from the outer layer to the inner layer, an anti-sticking layer, a substrate layer, a waterproof and breathable layer, and an adhesive layer in turn; the anti-sticking layer comprises polytetrafluoroethylene and titanium dioxide / graphene coating, the waterproof and breathable layer comprises expanded polytetrafluoroethylene and nanofiber; the adhesive layer comprises polyurethane, water-based acrylic pressure-sensitive adhesive and silicone modifier, and the water-based acrylic pressure-sensitive adhesive is uniformly mixed with nano silicon dioxide.

2. The waterproof and breathable composite masking tape according to claim 1, wherein, The titanium dioxide / graphene coating is coated on the side of the polytetrafluoroethylene close to the substrate layer.

3. The waterproof and vapor permeable masking tape composite according to claim 2, characterized in that, The thickness of the anti-sticking layer is 4-7 microns.

4. The waterproof and breathable composite masking tape according to claim 1, wherein The expanded polytetrafluoroethylene is arranged at the bottom of the substrate layer, and the smooth surface of the expanded polytetrafluoroethylene is connected with the lower end surface of the substrate layer.

5. The waterproof and vapor permeable composite masking tape according to claim 4, characterized in that, The nanofiber is polyacrylonitrile fiber, which is arranged on the side of the expanded polytetrafluoroethylene away from the substrate layer.

6. The waterproof and vapor permeable composite masking tape according to claim 5, characterized in that, The thickness of the waterproof and breathable layer is 13-17 microns.

7. The waterproof and vapor permeable composite masking tape according to claim 1, wherein The polyurethane is arranged at the bottom of the waterproof and breathable layer, the water-based acrylic pressure-sensitive adhesive is arranged at the bottom of the polyurethane, and the silicone modifier is arranged at the bottom of the water-based acrylic pressure-sensitive adhesive.

8. The waterproof and vapor permeable composite masking tape according to claim 7, characterized in that, The silicone modifier is polydimethylsiloxane.

9. The waterproof and vapor permeable composite masking tape according to claim 8, characterized in that, The thickness of the silicone modifier is 0.1-0.5 microns.

10. The waterproof and vapor permeable composite masking tape according to claim 9, characterized in that, The thickness of the adhesive layer is 10.1-10.5 microns.

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