High-strength hot melt adhesive tape for packaging

Abstract

The utility model discloses a high-strength hot melt adhesive tape for packaging, and relates to the technical field of hot melt adhesive tapes. The adhesive tape comprises an adhesive tape body, the adhesive tape body comprises a base film layer, a reinforcing layer is compounded on the upper surface of the base film layer, the reinforcing layer is composed of a plurality of linearly arranged reinforcing lines, the reinforcing lines are parallel to the length direction of the adhesive tape body, an upper film layer is compounded on the upper surface of the base film layer, and convex line lines are formed in the positions, located on the outer sides of the reinforcing lines, of the upper film layer. A plurality of concave lines are linearly arranged on the bottom surface of the base film layer. According to the utility model, the upper film layer is designed, and the linearly arranged reinforcing line is arranged between the upper film layer and the base film layer, so that the strength and tensile property of the adhesive tape can be greatly improved, the packaging quality of the adhesive tape is improved, and through the design of the convex line and the concave line, the convex line and the concave line are overlapped layer by layer after an adhesive tape roll is made; and the concave line provides an avoiding space for the convex line, so that the clinging degree between two adjacent layers of adhesive tapes is ensured, and the compactness of the manufactured adhesive tape roll is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of hot-melt adhesive tapes, in particular to a high-strength hot-melt adhesive tape for packaging. Background Art

[0002] The hot melt tape used for packaging has high requirements for strength and tensile strength to ensure the quality of the tape and packaging. However, if the tape is made of a combination of a separate film layer and an adhesive layer, the strength will be insufficient and cannot meet the requirements of use.

[0003] If a reinforcing layer, such as a glass fiber layer or a glass fiber thread, is provided in the tape, the strength can be greatly improved. However, due to the existence of the reinforcing layer, an uneven surface will be formed on the upper surface, and after being wound into a roll, there will be a problem of insufficient fit between two adjacent layers of tape. Insufficient tightness will cause the subsequent tape rolls to have problems such as too little winding and poor fit. If the adhesive layer is exposed to the outside, dust and impurities will affect the viscosity of the tape. Utility Model Content

[0004] The utility model aims to provide a high-strength hot-melt adhesive tape for packaging. By designing an upper film layer and providing a linearly arranged reinforcement line between the upper film layer and the base film layer, the strength and tensile strength of the adhesive tape can be greatly improved, and the packaging quality of the adhesive tape is improved. By designing convex edge lines and concave edge lines, after the adhesive tape roll is made, the convex edge lines and the concave edge lines are stacked layer by layer, and the concave edge lines provide a clearance space for the convex edge lines, thereby ensuring the close contact between two adjacent layers of adhesive tape and ensuring the compactness of the made tape roll.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is a high-strength hot-melt adhesive tape for packaging, comprising an adhesive tape body;

[0007] The tape body comprises a base film layer;

[0008] The upper surface of the base film layer is compounded with a reinforcement layer, the reinforcement layer is composed of a plurality of linearly arranged reinforcement lines, and the reinforcement lines are parallel to the length direction of the tape body;

[0009] The upper surface of the base film layer is compounded with an upper film layer, and a convex edge line is formed on the upper film layer at a position outside the reinforcement line;

[0010] The bottom surface of the base film layer is linearly provided with a plurality of concave edges, the concave edges are integrated with the base film layer, and the plurality of concave edges are respectively opposite to the plurality of convex edges;

[0011] The lower surface of the base film layer is provided with a glue layer;

[0012] The tape body is wound to form a tape roll, the outer tape body on the tape roll is attached to the outer surface of the inner tape body through the adhesive layer, and the convex edge line of the inner tape body on the tape roll is arranged within the concave edge line of the outer tape body.

[0013] Furthermore, the adhesive layer is a hot melt adhesive layer, and the thickness of the adhesive layer on the lower surface of the base film layer and the adhesive layer inside the concave edge are consistent.

[0014] Furthermore, the cross-section of the reinforcement wire is circular, and the reinforcement wire is a glass fiber cord structure.

[0015] Furthermore, the convex edge line is composed of an arc portion and oblique edge portions on both sides of the arc portion, and the concave edge line is clearance-matched with the convex edge line.

[0016] The utility model has the following beneficial effects:

[0017] The utility model can greatly improve the strength and tensile strength of the tape and improve the packaging quality of the tape by designing an upper film layer and providing a linearly arranged reinforcement line between the upper film layer and the base film layer. By designing the convex edge line and the concave edge line, after the tape roll is made, the convex edge line and the concave edge line are stacked layer by layer, and the concave edge line provides a space for the convex edge line to ensure the close contact between two adjacent layers of tape, reduce the thickness occupied by the reinforcement line, ensure the compactness of the tape roll after it is made, and ensure the amount of tape in the same tape roll.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of the structure of a high-strength hot-melt adhesive tape for packaging according to the utility model;

[0021] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0022] Figure 3 This is a cross-sectional view of the structure of the utility model after the two layers of the tape body are superimposed;

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1-base film layer, 2-reinforcement line, 3-upper film layer, 4-convex edge line, 5-concave edge line, 6-adhesive layer, 7-tape body. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-3 As shown, the utility model is a high-strength hot-melt adhesive tape for packaging, comprising an adhesive tape body 7;

[0027] The tape body 7 includes a base film layer 1;

[0028] The upper surface of the base film layer 1 is compounded with a reinforcement layer, which is composed of a plurality of linearly arranged reinforcement lines 2, and the reinforcement lines 2 are parallel to the length direction of the tape body 7;

[0029] The upper surface of the base film layer 1 is compounded with an upper film layer 3, and a convex edge line 4 is formed on the upper film layer 3 at a position outside the reinforcement line 2;

[0030] A plurality of concave edges 5 are linearly arranged on the bottom surface of the base film layer 1. The concave edges 5 are integrated with the base film layer 1. The plurality of concave edges 5 are respectively opposite to the plurality of convex edges 4.

[0031] The lower surface of the base film layer 1 is provided with an adhesive layer 6;

[0032] The tape body 7 is wound to form a tape roll, and the outer tape body 7 on the tape roll is adhered to the outer surface of the inner tape body 7 through the adhesive layer 6, and the convex edge line 4 of the inner tape body 7 on the tape roll is arranged in the concave edge line 5 of the outer tape body 7.

[0033] Among them Figure 2-3 As shown, the adhesive layer 6 is a hot melt adhesive layer, and the adhesive layer 6 on the lower surface of the base film layer 1 and the adhesive layer 6 inside the concave edge line 5 have the same thickness.

[0034] Among them Figure 2-3 As shown, the cross section of the reinforcement wire 2 is circular, and the reinforcement wire 2 is a glass fiber cord structure.

[0035] Among them Figure 2-3 As shown, the convex edge line 4 is composed of an arc portion and oblique edge portions on both sides of the arc portion, and the concave edge line 5 is clearance-matched with the convex edge line 4 .

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A high-strength hot-melt adhesive tape for packaging, characterized in that: It includes a tape body (7); The adhesive tape body (7) comprises a base film layer (1); The upper surface of the base film layer (1) is compounded with a reinforcement layer, wherein the reinforcement layer is composed of a plurality of reinforcement lines (2) arranged linearly, and the reinforcement lines (2) are parallel to the length direction of the adhesive tape body (7); The upper surface of the base film layer (1) is compounded with an upper film layer (3), and a convex edge line (4) is formed on the upper film layer (3) at a position outside the reinforcement line (2); The bottom surface of the base film layer (1) is linearly provided with a plurality of concave edge lines (5), the concave edge lines (5) are integral with the base film layer (1), and the plurality of concave edge lines (5) are respectively opposite to the plurality of convex edge lines (4); The lower surface of the base film layer (1) is provided with a glue layer (6); The tape body (7) is wound to form a tape roll, the outer tape body (7) on the tape roll is adhered to the outer surface of the inner tape body (7) through the adhesive layer (6), and the convex edge line (4) of the inner tape body (7) on the tape roll is arranged within the concave edge line (5) of the outer tape body (7).

2. A high-strength hot-melt adhesive tape for packaging according to claim 1, characterized in that: The adhesive layer (6) is a hot melt adhesive layer, and the adhesive layer (6) on the lower surface of the base film layer (1) and the adhesive layer (6) inside the concave edge line (5) have the same thickness.

3. A high-strength hot-melt adhesive tape for packaging according to claim 1, characterized in that: The cross section of the reinforcement line (2) is circular, and the reinforcement line (2) is a glass fiber cord structure.

4. A high-strength hot-melt adhesive tape for packaging according to claim 1, characterized in that: The convex edge line (4) is composed of an arc portion and oblique edge portions on both sides of the arc portion, and the concave edge line (5) is clearance-matched with the convex edge line (4).

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