High-toughness masking tape

Abstract

This utility model discloses a high-toughness masking tape, comprising a winding tube, a roller, masking tape, and a pressing assembly. The masking tape is wound around the roller and, through the rotation of the roller, is fitted onto the winding tube. The masking tape, from top to bottom, includes an impregnated layer, a substrate layer, a reinforcing layer, an adhesive layer, and an anti-stick layer. The substrate layer is made of kraft paper. The pressing assembly is fixed to one side of the winding tube and is used to press the masking tape on the roller. The pressing assembly includes a connecting frame, a pushing device, and a pressing roller. One end of the connecting frame is connected to the winding tube. A first movable slot is formed on the connecting frame along the thickness direction of the masking tape. The pushing device is movably disposed on the first movable slot. The pressing roller is fixed on the pushing device and positioned above the masking tape. A cutter protrudes from the pressing roller along the width direction of the masking tape. This utility model improves the toughness and tensile strength of the masking tape, while also providing both pressing and cutting functions, thus avoiding material waste.

Description

Technical Field

[0001] This utility model relates to the field of paper tape technology, specifically to a high-toughness masking tape. Background Technology

[0002] Masking tape is a roll of adhesive tape made primarily from masking paper and pressure-sensitive adhesive. One side is coated with pressure-sensitive adhesive, and the other side is coated with a release agent. It features high temperature resistance, excellent chemical solvent resistance, high adhesion, easy tearing, flexibility, and leaves no residue after removal. It is commonly referred to in the industry as masking pressure-sensitive adhesive tape.

[0003] Existing masking tape pressure-sensitive adhesive tape has disadvantages such as poor toughness and poor tensile strength. Moreover, after each use and tearing, the tape may break and lift due to excessive adhesive force, making it unusable and resulting in material waste. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-toughness masking tape, which improves the toughness and tensile strength of masking tape, and has both masking tape pressing and cutting functions, thus avoiding material waste.

[0005] The technical solution of this utility model is as follows:

[0006] A high-toughness masking tape includes a winding tube, a roller, masking tape, and a pressing assembly. The masking tape is wound around the roller and is fitted onto the winding tube by the rotation of the roller. The masking tape includes, from top to bottom, an impregnation layer, a substrate layer, a reinforcing layer, an adhesive layer, and an anti-stick layer. The substrate layer is made of kraft paper. The pressing assembly is fixed to one side of the winding tube and is used to press the masking tape on the roller.

[0007] The pressing assembly includes a connecting frame, a pushing device, and a pressing roller. One end of the connecting frame is connected to the winding cylinder. A first movable slot is formed on the connecting frame along the thickness direction of the masking paper. The pushing device is movably disposed on the first movable slot. The pressing roller is fixed on the pushing device and located above the masking paper. A cutter is protruding on the pressing roller along the width direction of the masking paper.

[0008] Furthermore, the adhesive layer is made of silicone pressure-sensitive adhesive.

[0009] Furthermore, the anti-stick layer is made of PRF release film.

[0010] Furthermore, the length of the first active slot is greater than the thickness of the masking tape.

[0011] Furthermore, the pushing device includes a device housing, a trapezoidal spring, a push block, and a push handle. The first movable slot is formed on one side of the connecting frame. The interior of the connecting frame is provided with a movable slot along the first movable slot. The other side of the connecting frame is provided with a second movable slot. A locking tooth is provided between the movable slot and the second movable slot. The device housing is movably connected to the movable slot. The trapezoidal spring is vertically engaged in the device housing, and the upper and lower ends of the trapezoidal spring respectively engage with the locking tooth and have a movable gap with the side wall of the device housing. The push block is adapted to be disposed between the upper and lower ends of the trapezoidal spring. The push block has a push handle extending outward from the position corresponding to the first movable slot. The pressure roller is fixed on the device housing.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] (1) The masking tape of this utility model consists of an impregnation layer, a substrate layer, a reinforcing layer, an adhesive layer, and an anti-sticking layer from top to bottom. The impregnation layer can enhance the tensile strength, tear strength, and inner layer peel strength of the paper, while improving its water resistance and solvent resistance; the substrate layer is made of kraft paper, which has high toughness, water resistance, and good tear resistance; the reinforcing layer can enhance the bonding force between the adhesive layer and the substrate layer and prevent the adhesive from falling off.

[0014] (2) This utility model adopts an inner and outer cylinder structure design, and a pressing component is fixed on one side of the cylinder. The pressing component can press the masking paper when the tape is idle or press and cut the masking paper when it is in use, which can prevent the open end from sticking up and avoid material waste. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A structural schematic diagram of a high-toughness masking tape provided by this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the masking tape described in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the pushing device described in this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0021] Example

[0022] Please see Figure 1 This embodiment provides a high-toughness masking tape, including a winding tube 1, a roller 2, masking paper 3, and a pressing component 4. The masking paper 3 is wound on the roller 2 and is sleeved on the winding tube 1 by rotating the roller 2. The pressing component 4 is fixed on one side of the winding tube 1 and is used to press the masking paper on the roller 2.

[0023] Among them, combined Figure 2 As shown, the masking tape 3 comprises, from top to bottom, an impregnation layer 31, a substrate layer 32, a reinforcing layer 33, an adhesive layer 34, and a release layer 33. The impregnation layer 31 enhances the tensile strength, tear resistance, and inner layer peel strength of the paper, while also improving its water resistance and solvent resistance. The substrate layer 32 is made of kraft paper, which has high toughness, water resistance, and good tear resistance. The reinforcing layer 33 strengthens the bond between the adhesive layer 34 and the substrate layer 32, preventing adhesive detachment. The adhesive layer 34 uses silicone pressure-sensitive adhesive, which adheres firmly with an adhesion force ≥5N / in, is easy to apply, has good retention, and leaves no residue. The release layer 33 uses a PRF release film, which provides protection for the adhesive layer and helps improve the toughness of the masking tape. During use, the PRF release film is removed from the adhesive layer, allowing the masking tape to be smoothly applied to the object being bonded.

[0024] Among them, combined Figure 3As shown, the pressing assembly 4 includes a connecting frame 41, a pushing device, and a pressing roller 43. One end of the connecting frame 41 is connected to the winding cylinder 1. A first movable slot 411 is provided on the connecting frame 41 along the thickness direction of the masking paper 3. The length of the first movable slot 411 is greater than the thickness of the masking paper 3. The pushing device is movably disposed on the first movable slot 411. The pressing roller 43 is fixed on the pushing device and located above the masking paper 3. A cutter 44 is protruding on the pressing roller 43 along the width direction of the masking paper 3. Specifically, the pushing device includes a device housing 421, a trapezoidal spring 422, a push block 423, and a push handle 424. A first movable slot 411 is formed on one side of the connecting frame 41. The interior of the connecting frame 41 is provided with a movable slot along the first movable slot 411. A second movable slot is provided on the other side of the connecting frame 41. A locking tooth 45 is provided between the movable slot and the second movable slot. The device housing 421 is movably connected in the movable slot. The trapezoidal spring 422 is vertically locked in the device housing 421, and the upper and lower ends of the trapezoidal spring 422 respectively engage with the locking tooth 45 and have a movable gap with the side wall of the device housing 421. The push block 423 is adapted to be disposed between the upper and lower ends of the trapezoidal spring 422. The push block 423 extends outward from the position corresponding to the first movable slot 411 with a push handle 424. The pressure roller 43 is fixed on the device housing 421. Its structural principle is as follows: By applying upward or downward force through the push handle 424, the end of the trapezoidal spring piece 422 separates from the locking tooth 45, thereby causing the pressure roller 43 to move in the direction of the applied force under the drive of the device body 421, thus pressing or releasing the masking tape 3. When no force is applied, the end of the trapezoidal spring piece 422 will engage with the locking tooth 45, and the pressure roller 43 cannot move at this time. When the tape is idle, the opening end of the masking tape 3 can be pressed by the pressure assembly 4 to prevent the opening end from lifting up; when the tape is in use, first loosen the pressure assembly 4, rotate the masking tape 3 to the required length, then press the masking tape 3 by the pressure assembly 4, and then cut the pulled-out part of the masking tape 3 by the cutter 44 on the pressure roller 43. This operation can ensure that the cut edge of the masking tape remains flat, avoiding direct tearing that would damage or lift the broken end, making it unusable and wasting material.

[0025] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-toughness masking tape, characterized in that: The device includes a winding drum, a roller, masking tape, and a pressing assembly. The masking tape is wound around the roller and is fitted onto the winding drum by the rotation of the roller. The masking tape includes, from top to bottom, an impregnation layer, a substrate layer, a reinforcing layer, an adhesive layer, and an anti-stick layer. The substrate layer is made of kraft paper. The pressing assembly is fixed to one side of the winding drum and is used to press the masking tape on the roller. The pressing assembly includes a connecting frame, a pushing device, and a pressing roller. One end of the connecting frame is connected to the winding cylinder. A first movable slot is formed on the connecting frame along the thickness direction of the masking paper. The pushing device is movably disposed on the first movable slot. The pressing roller is fixed on the pushing device and located above the masking paper. A cutter is protruding on the pressing roller along the width direction of the masking paper.

2. The high-toughness masking tape according to claim 1, characterized in that: The adhesive layer is made of silicone pressure-sensitive adhesive.

3. The high-toughness masking tape according to claim 1, characterized in that: The anti-stick layer is made of PRF release film.

4. The high-toughness masking tape according to claim 1, characterized in that: The length of the first movable slot is greater than the thickness of the masking tape.

5. The high-toughness masking tape according to claim 1, characterized in that: The pushing device includes a device housing, a trapezoidal spring, a push block, and a push handle. The first movable slot is formed on one side of the connecting frame. The interior of the connecting frame is provided with a movable slot along the first movable slot. The other side of the connecting frame is provided with a second movable slot. A locking tooth is provided between the movable slot and the second movable slot. The device housing is movably connected to the movable slot. The trapezoidal spring is vertically locked in the device housing, and the upper and lower ends of the trapezoidal spring respectively engage with the locking tooth and have a movable gap with the side wall of the device housing. The push block is adapted to be disposed between the upper and lower ends of the trapezoidal spring. The push block has a push handle extending outward from the position corresponding to the first movable slot. The pressure roller is fixed on the device housing.

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