Three-layer waterproof adhesive film

Abstract

The utility model relates to the technical field of waterproof adhesive films, and discloses a three-layer waterproof adhesive film which comprises bottom hot melt paper, a middle waterproof layer is arranged on the top of the bottom hot melt paper, and a PTU layer is arranged on the top of the middle waterproof layer. The top of the bottom hot melt paper is provided with a first slot, and the bottom of the middle waterproof layer is provided with a waterproof layer bump located in the first slot. The bottom hot-melt paper and the middle waterproof layer are connected through the first inserting grooves, the hot-melt paper protruding blocks, the waterproof layer protruding blocks and the second inserting grooves, so that the contact area of the bottom hot-melt paper and the middle waterproof layer is increased; the connecting strength between the middle waterproof layer and the bottom hot-melt paper is improved, the bottom hot-melt paper is attached more tightly, the middle waterproof layer is prevented from falling off from a foreign object for a long time, a sewing process is replaced, and the waterproof fabric is waterproof, resistant to water pressure, free of water seepage and used for outdoor jacket waterproofing.

Description

TECHNICAL FIELD

[0001] The utility model relates to waterproof adhesive film technical field, concretely is three -layer waterproof adhesive film. BACKGROUND

[0002] Three -layer waterproof adhesive film has excellent waterproof performance, and the anti -permeability, high and low temperature resistance and corrosion resistance are excellent, and single -layer use can satisfy the requirement of underground waterproof engineering first -class waterproof.

[0003] The existing three -layer waterproof adhesive film hot melt paper and intermediate waterproof layer are flush together, make hot melt paper and intermediate waterproof layer between the contact area is limited, when three -layer waterproof adhesive film uses for a long time, hot melt paper and intermediate waterproof layer connecting position are pulled for a long time, and the waterproof layer is easy to fall off. UTILITY MODEL CONTENTS

[0004] The utility model discloses a three -layer waterproof adhesive film to solve the problem in the background art.

[0005] To achieve the above -mentioned purpose, the utility model provides the following technical scheme: three -layer waterproof adhesive film, including:

[0006] Bottom hot melt paper, the top of bottom hot melt paper is equipped with intermediate waterproof layer, and the top of intermediate waterproof layer is equipped with PTU layer;

[0007] The top of bottom hot melt paper is equipped with the hot melt paper protruding piece in the second slot, and the top of intermediate waterproof layer is equipped with the waterproof layer protruding piece in the first slot. Through bottom hot melt paper and intermediate waterproof layer between using first slot, hot melt paper protruding piece, waterproof layer protruding piece and second slot connection, increase the contact area of bottom hot melt paper and intermediate waterproof layer, when bottom hot melt paper and intermediate waterproof layer carry out hot -wind and stick together to the specified position, increase the strength of the connection between intermediate waterproof layer and bottom hot melt paper, make bottom hot melt paper stick together more closely.

[0008] As a further improvement of the utility model, the top of intermediate waterproof layer is equipped with third slot, and the bottom of PTU layer is equipped with PTU protruding piece in third slot.

[0009] As a further improvement of the utility model, the whole third slot is isosceles trapezoidal shape, and the PTU protruding piece is matched with third slot. Through PTU layer and intermediate waterproof layer between using PTU protruding piece and third slot connection, increase the strength of the connection between intermediate waterproof layer and PTU layer, also play good waterproof effect simultaneously.

[0010] As a further improvement of the utility model, the side of the bottom hot melt paper, the middle waterproof layer and the PTU layer connected together is provided with side edge hot melt paper.

[0011] As a further improvement of the utility model, the first slot, the hot melt paper bump, the waterproof layer bump and the second slot are all triangular.

[0012] As a further improvement of the utility model, the bottom hot melt paper and the middle waterproof layer are provided with a plurality of first slots, hot melt paper bumps, waterproof layer bumps and second slots, and the first slots, hot melt paper bumps, waterproof layer bumps and second slots are sequentially and repeatedly arranged.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The three-layer waterproof adhesive film is connected by the first slot, the hot melt paper bump, the waterproof layer bump and the second slot between the bottom hot melt paper and the middle waterproof layer, the contact area of the bottom hot melt paper and the middle waterproof layer is increased, the strength of the connection between the middle waterproof layer and the bottom hot melt paper is increased when the bottom hot melt paper and the middle waterproof layer are hot air bonded to the specified position, the bottom hot melt paper is bonded more closely, the middle waterproof layer is prevented from falling off from the external object for a long time, the sewing process is replaced, the waterproof adhesive film is waterproof and resistant to water pressure and will not seep water, and is used for outdoor clothes and waterproof jackets. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0016] Fig. 1 It is the whole structure schematic diagram of the three-layer waterproof adhesive film of the utility model;

[0017] Fig. 2 It is the structure schematic diagram of the utility model three-layer waterproof adhesive film under the top cover cloth opening state.

[0018] In the drawing: 1, bottom hot melt paper;2, middle waterproof layer;3, PTU layer;4, side edge hot melt paper;5, first slot;6, hot melt paper bump;7, waterproof layer bump;8, second slot;9, PTU bump;10, third slot. DETAILED DESCRIPTION

[0019] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the scope of protection of the utility model.

[0020] Please refer to Figs. 1-2 The utility model provides three waterproof adhesive films, characterized in that, including:

[0021] The bottom hot melt paper 1 is provided with the middle waterproof layer 2 at the top, and the middle waterproof layer 2 is provided with the PTU layer 3 at the top.

[0022] The bottom hot melt paper 1 is provided with the middle waterproof layer 2 at the top, and the middle waterproof layer 2 is provided with the PTU layer 3 at the top.

[0023] The middle waterproof layer 2 is provided with the third slot 10 at the top, and the PTU layer 3 is provided with the PTU bump 9 in the third slot 10.

[0024] The third slot 10 is in the shape of an isosceles trapezoid, and the PTU bump 9 is adapted to the third slot 10. The PTU layer 3 and the middle waterproof layer 2 are connected by the PTU bump 9 and the third slot 10, which increases the connection strength between the middle waterproof layer 2 and the PTU layer 3 and also achieves good waterproof effect.

[0025] The side of the bottom hot melt paper 1, the middle waterproof layer 2 and the PTU layer 3 connected together is provided with the side hot melt paper 4. The side hot melt paper 4 is provided on the side of the three-layer waterproof adhesive film, which increases the sealing property of the side of the bottom hot melt paper 1, the middle waterproof layer 2 and the PTU layer 3 during hot air bonding.

[0026] The first slot 5, the hot melt paper bump 6, the waterproof layer bump 7 and the second slot 8 are all in the shape of a triangle.

[0027] A plurality of first slots 5, hot melt paper protrusions 6, waterproof layer protrusions 7 and second slots 8 are arranged between the bottom hot melt paper 1 and the intermediate waterproof layer 2, and the first slots 5, hot melt paper protrusions 6, waterproof layer protrusions 7 and second slots 8 are arranged in sequence. By arranging the plurality of first slots 5, hot melt paper protrusions 6, waterproof layer protrusions 7 and second slots 8, the strength between the bottom hot melt paper 1 and the intermediate waterproof layer 2 is greatly increased, so that the intermediate waterproof layer 2 is more closely connected with external objects.

[0028] Working principle: when the device is used, the PTU protrusions 9 on the PTU layer 3 are inserted into the third slots 10 on the intermediate waterproof layer 2 for connection, the waterproof layer protrusions 7 are inserted into the first slots 5, and the hot melt paper protrusions 6 are inserted into the second slots 8 for connection, and then an external hot air machine is used to melt and paste the bottom hot melt paper 1 at the stitching position.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A three-ply waterproofing membrane, characterized in that, Include: The bottom hot melt paper (1), the top of the bottom hot melt paper (1) is provided with an intermediate waterproof layer (2), and the top of the intermediate waterproof layer (2) is provided with a PTU layer (3); The top of the bottom hot melt paper (1) is provided with a first slot (5), the bottom of the intermediate waterproof layer (2) is provided with a waterproof layer protrusion (7) inside the first slot (5), the bottom of the intermediate waterproof layer (2) is provided with a second slot (8), and the top of the bottom hot melt paper (1) is provided with a hot melt paper protrusion (6) inside the second slot (8).

2. The three-layer waterproof adhesive film according to claim 1, characterized in that, The top of the intermediate waterproof layer (2) is provided with a third slot (10), and the bottom of the PTU layer (3) is provided with a PTU protrusion (9) inside the third slot (10).

3. The three-layer waterproofing membrane according to claim 2, characterized in that, The third slot (10) is in the shape of an isosceles trapezoid, and the PTU protrusion (9) is adapted to the third slot (10).

4. The three-layer waterproof adhesive film according to claim 1, characterized in that, The side surface of the bottom hot melt paper (1), the intermediate waterproof layer (2) and the PTU layer (3) connected together is provided with a side edge hot melt paper (4).

5. The three-layer waterproof adhesive film according to claim 1, characterized in that, The first slot (5), the hot melt paper protrusion (6), the waterproof layer protrusion (7) and the second slot (8) are all in the shape of a triangle.

6. The three-ply waterproofing membrane of claim 1, wherein, The bottom hot melt paper (1) and the intermediate waterproof layer (2) are provided with a plurality of first slots (5), hot melt paper protrusions (6), waterproof layer protrusions (7) and second slots (8) therebetween, and the first slots (5), the hot melt paper protrusions (6), the waterproof layer protrusions (7) and the second slots (8) are arranged in sequence and repeatedly.

Images