CN220116458U

CN220116458U - Destructive adhesive tape

Info

Publication number: CN220116458U
Application number: CN202321472876.7U
Authority: CN
Inventors: 李刚; 方程; 余坤
Original assignee: Jiaxing Jialin New Material Technology Co ltd
Current assignee: Jiaxing Jialin New Material Technology Co ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-12-01
Anticipated expiration: 2033-06-09

Abstract

The utility model relates to a destructive adhesive tape, which comprises a winding drum and an adhesive tape body, wherein the adhesive tape body is wound on the winding drum, the adhesive tape body comprises a stripping sheet and an adhesive sheet, the stripping sheet comprises a release film and silicone oil layers coated on two sides of the release film, the adhesive sheet comprises a middle substrate, a first adhesive layer and a second adhesive layer which are respectively and fixedly adhered on two sides of the middle substrate, a plurality of spherical bulge are arranged on one side of the middle substrate, the back of the spherical bulge is provided with a bulge hollow groove corresponding to the spherical bulge, the first adhesive layer is covered on one side of the middle substrate with the spherical bulge, the second adhesive layer is covered on one side of the middle substrate with the bulge hollow groove, the stripping sheet is adhered on one side of the second adhesive layer, and when the adhesive tape body is wound on the winding drum, the first adhesive layer at the outer ring is adhered with the stripping sheet at the inner ring.

Description

Destructive adhesive tape

Technical Field

The utility model relates to the technical field of adhesive tapes, in particular to a destructive adhesive tape.

Background

The destructive adhesive tape is suitable for sealing express bags, postal bags, election bags, security bags, overweight bags and the like, has the characteristics of being close immediately after being pasted and broken immediately after being torn, and generally comprises a winding drum and an adhesive tape body which is wound on the winding drum, and generally comprises a stripping sheet and an adhesive sheet, wherein the stripping sheet structure generally comprises: release film and silicone oil layers coated on both sides of the release film. When the release sheet is adhered to an article to be adhered on the adhesive tape body, the release sheet needs to be torn off from the adhesive sheet, and the adhesive sheet in the destructive adhesive tape is relatively large in viscosity, so that the release sheet is easy to tear off from the adhesive sheet, the silicon oil layers on the two sides of the release film in the release sheet are relatively thick to be coated, the required silicon oil amount is relatively large, the cost is relatively high, and in addition, the situation that the release sheet is difficult to tear off from the adhesive sheet at one time occasionally occurs, and the tearing phenomenon is very easy to occur when the release sheet is peeled off from the high-viscosity adhesive sheet.

Disclosure of Invention

The utility model provides a destructive adhesive tape, wherein a stripping sheet is easy to tear from an adhesive sheet, so that the stripping sheet is unlikely to tear when being torn from the adhesive sheet, and in addition, the silicone oil consumption in the stripping sheet is low, so that the cost is reduced, and the problems in the using process in the prior art are solved.

The technical scheme of the utility model is realized as follows: the utility model provides a destructive sticky tape, includes reel and sticky tape body, the sticky tape body winds on the reel, the sticky tape body is including the release sheet and the sticky piece of mutual adhesion, the release sheet is including release film and coating on release film both sides, the sticky piece is including middle substrate and fixed first adhesive layer and the second adhesive layer of gluing on middle substrate both sides respectively, be equipped with a plurality of sphere arch on the one side of middle substrate, the middle substrate has the protruding hollow groove corresponding with sphere arch on the bellied back of sphere, first adhesive layer covers on the one side that middle substrate has sphere arch, the second adhesive layer covers on the one side that middle substrate has protruding hollow groove, the release sheet is glued in second adhesive layer one side, the sticky tape body is when winding on the reel, is in the first adhesive layer of outer lane and the sticky piece that is in the peeling sheet of inner circle and is adhered.

Preferably, the width of the stripping sheet is larger than that of the adhesive sheet, the adhesive sheet is positioned in the middle of the stripping sheet, and the stripping sheet is exposed towards two side edges of one surface of the adhesive sheet.

Preferably, the protection components are fixedly connected to the two sides of the winding drum, and the protection components are attached to the side faces of the adhesive tape body wound on the winding drum.

Preferably, the protection component comprises a first annular sheet, both ends of the winding drum are fixedly connected with fixing rings, and the edge of the inner ring of the first annular sheet is adhered to the fixing rings.

Preferably, the protection assembly further comprises a second annular piece, the outer ring radius of the second annular piece is smaller than the outer ring radius of the first annular piece, the inner ring radius of the second annular piece is larger than the inner ring radius of the first annular piece, the inner ring edge of the second annular piece is adhered to the outer ring edge position of the fixed ring, the inner ring edge of the first annular piece is adhered to the inner ring edge position of the fixed ring, and the second annular piece is located between the first annular piece and the fixed ring.

Preferably, the first adhesive layer and the second adhesive layer are both made of EVA resin hot melt adhesive.

Preferably, the intermediate substrate is made of PET material.

In summary, the beneficial effects of the utility model are as follows:

1. because the middle substrate in the adhesive sheet is provided with a plurality of spherical segment bulges on one surface, the other surface of the middle substrate is provided with a bulge hollow groove corresponding to the spherical segment bulges, the first adhesive layer is covered on the surface of the middle substrate with the spherical segment bulges, the second adhesive layer is covered on the surface with the bulge hollow groove, the stripping sheet is adhered to one side of the second adhesive layer, the second adhesive layer is covered on the middle substrate and can be recessed along with the shape of the bulge hollow groove, the contact area between the second adhesive layer and the stripping sheet is greatly reduced, when the adhesive tape body is wound on the winding drum, the first adhesive layer positioned on the outer ring is adhered to the stripping sheet positioned on the inner ring, and the first adhesive layer positioned on the outer ring is also bulged along with the spherical segment bulges.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of an intermediate substrate according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a tape body according to the present utility model;

FIG. 4 is a schematic view showing a partial cross-sectional structure of the adhesive tape body of the present utility model when the adhesive tape body is wound on a reel;

FIG. 5 is a schematic view of the first ring segment of FIG. 1 after the first ring segment has been torn away;

FIG. 6 is a schematic view of the structure of the present utility model with the adhesive tape body removed;

fig. 7 is an exploded view of the structure of fig. 6.

1, a winding drum; 11. a fixing ring; 2. an adhesive tape body; 21. a release sheet; 211. a release film; 212. a silicon oil layer; 22. an adhesive sheet; 221. an intermediate substrate; 222. a first adhesive layer; 223. a second adhesive layer; 224. a segment bulge; 225. a convex hollow groove; 3. a first annular sheet; 4. and a second annular sheet.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 7 of the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples:

as shown in fig. 1 to 7, the present utility model discloses a destructive adhesive tape, comprising a roll 1 and an adhesive tape body 2, wherein the adhesive tape body 2 is wound on the roll 1, wherein the adhesive tape body 2 comprises a release sheet 21 and an adhesive sheet 22 adhered to each other, further, the release sheet 21 comprises a release film 211 and silicone oil layers 212 coated on both sides of the release film 211, the adhesive sheet 22 comprises a middle substrate 221, a first adhesive layer 222 and a second adhesive layer 223 adhered on both sides of the middle substrate 221, a plurality of bump 224 are provided on one side of the middle substrate 221, the middle substrate 221 has a bump inner hollow 225 corresponding to the bump 224 on the back of the bump 224, the bump 224 and the bump inner hollow 225 can be molded by one-step stamping by a mold, so that the first adhesive layer 222 covers one side of the middle substrate 221 having the bump 224, the second adhesive layer 223 covers the surface of the middle substrate 221 having the protrusion hollow 225, the first adhesive layer 222 is fluctuated along with the shape of the bump 224, and the second adhesive layer 223 is sunk along with the shape of the protrusion hollow 225, wherein the release sheet 21 is adhered to one side of the second adhesive layer 223, when the adhesive tape body 2 is wound on the winding drum 1 for one turn, as shown in fig. 4, the first adhesive layer 222 positioned at the outer turn is adhered to the release sheet 21 positioned at the inner turn, the contact area between the second adhesive layer 223 and the release sheet 21 is reduced due to the protrusion hollow 225, and when the adhesive tape body 2 is wound on the winding drum 1, the contact area between the first adhesive layer 222 positioned at the outer turn and the release sheet 21 positioned at the inner turn is reduced, so that when the user pinches the release sheet 21 positioned at the outer turn, the adhesive sheet 22 is easily pulled out from the release film 211 positioned at the inner turn, then, the adhesive tape body 2 is adhered to an article, and the release sheet 21 can be easily torn off from the adhesive sheet 22, so that the tearing phenomenon is not caused, and the thickness of the silicone oil on the two sides of the release film 211 in the release sheet 21 can be reduced, the silicone oil consumption is reduced, and the cost is reduced because the contact area between the first adhesive layer 222 and the second adhesive layer 223 and the release sheet 21 is reduced, and the release sheet 21 is easily torn off from the adhesive sheet 22.

In order to facilitate tearing of the release sheet 21 from the adhesive sheet 22, the release sheet 21 has a width larger than that of the adhesive sheet 22, the adhesive sheet 22 is located in the middle of the release sheet 21, and the release sheet 21 is exposed toward both side edges of one face of the adhesive sheet 22.

When the tape body 2 is wound around the roll 1 in one turn, since the intermediate base 221 has the spherical protrusion 224, it is determined that the gap between each turn of the tape body 2 and the adjacent tape body 2 is relatively large, and thus it is necessary to protect both sides of the tape body 2 wound around the roll 1 from dust, and therefore, protection components attached to the side surfaces of the tape body 2 wound around the roll 1 are fixedly connected to both sides of the roll 1.

Specifically, the protection component comprises a first annular piece 3, two ends of the winding drum 1 are fixedly connected with fixing rings 11, the edge of the inner ring of the first annular piece 3 is adhered to the fixing rings 11, and the first annular piece 3 covers two sides of the adhesive tape body 2 wound on the winding drum 1 to prevent dust from entering.

Further, the protection assembly further comprises a second annular piece 4, the outer ring radius of the second annular piece 4 is smaller than the outer ring radius of the first annular piece 3, the inner ring radius of the second annular piece 4 is larger than the inner ring radius of the first annular piece 3, the inner ring edge of the second annular piece 4 is adhered to the outer ring edge position of the fixed ring 11, the inner ring edge of the first annular piece 3 is adhered to the inner ring edge position of the fixed ring 11, and the second annular piece 4 is located between the first annular piece 3 and the fixed ring 11. When the adhesive tape body 2 is used more and less, the thickness of the adhesive tape body 2 wound on the winding drum 1 is too much for the first annular piece 3, so that the use of the adhesive tape body 2 can be influenced, the first annular piece 3 can be directly torn off from the fixing ring 11 at the moment to expose the second annular piece 4, and the second annular piece 4 can continuously perform equation protection on two sides of the adhesive tape body 2.

In the present utility model, the first adhesive layer 222 and the second adhesive layer 223 are both made of EVA resin hot melt adhesive, and the intermediate substrate 221 is made of PET material.

Also, the terms pointed out by the present utility model are as follows: the directional or positional relationships indicated by the terms "front", "rear", "vertical", "horizontal", etc., are based on the directional or positional relationships shown in the drawings, are merely for convenience in describing the utility model and to simplify the description, and are not indicative or implying that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed to limit the scope of the utility model.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. A destructive tape comprising a roll (1) and a tape body (2), the tape body (2) being wound on the roll (1), characterized in that: the adhesive tape comprises an adhesive tape body (2), and is characterized in that the adhesive tape body (2) comprises a stripping sheet (21) and an adhesive sheet (22) which are adhered to each other, the stripping sheet (21) comprises a release film (211) and silicone oil layers (212) coated on two sides of the release film (211), the adhesive sheet (22) comprises a middle base material (221) and a first adhesive layer (222) and a second adhesive layer (223) which are respectively and fixedly adhered to two sides of the middle base material (221), a plurality of notch protrusions (224) are arranged on one side of the middle base material (221), a protrusion hollow groove (225) corresponding to the notch protrusions (224) is formed in the back surface of the notch protrusions (224) of the middle base material (221), the first adhesive layer (222) covers one side of the middle base material (221) with the protrusion hollow groove (225), the stripping sheet (21) is adhered to one side of the second adhesive layer (223), and the adhesive tape (21) is positioned on an outer ring (1) when the adhesive tape is wound.

2. A destructive tape according to claim 1, wherein: the width of the stripping sheet (21) is larger than that of the adhesive sheet (22), the adhesive sheet (22) is positioned in the middle of the stripping sheet (21), and the stripping sheet (21) is exposed towards two side edges of one surface of the adhesive sheet (22).

3. A destructive tape according to claim 1, wherein: the protective components are fixedly connected to the two sides of the winding drum (1), and are attached to the side face of the adhesive tape body (2) wound on the winding drum (1).

4. A destructive tape according to claim 3, wherein: the protection assembly comprises a first annular sheet (3), two ends of the winding drum (1) are fixedly connected with fixing rings (11), and the edge of the inner ring of the first annular sheet (3) is adhered to the fixing rings (11).

5. The destructive tape of claim 4, wherein: the protection assembly further comprises a second annular piece (4), the outer ring radius of the second annular piece (4) is smaller than that of the first annular piece (3), the inner ring radius of the second annular piece (4) is larger than that of the first annular piece (3), the inner ring edge of the second annular piece (4) is adhered to the outer ring edge position of the fixed ring (11), the inner ring edge of the first annular piece (3) is adhered to the inner ring edge position of the fixed ring (11), and the second annular piece (4) is located between the first annular piece (3) and the fixed ring (11).

6. A destructive tape according to claim 1, wherein: the first adhesive layer (222) and the second adhesive layer (223) are both made of EVA resin hot melt adhesive.

7. A destructive tape according to claim 1, wherein: the middle substrate (221) is made of PET material.