CN115785848B

CN115785848B - Adhesive tape structure

Info

Publication number: CN115785848B
Application number: CN202211570831.3A
Authority: CN
Inventors: 白云德
Original assignee: Interface Optoelectronics Shenzhen Co Ltd; Interface Technology Chengdu Co Ltd; General Interface Solution Ltd
Current assignee: Interface Optoelectronics Shenzhen Co Ltd; Interface Technology Chengdu Co Ltd; General Interface Solution Ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2024-02-06
Anticipated expiration: 2042-12-08
Also published as: CN115785848A

Abstract

The application relates to the technical field of display, and an embodiment of the application provides an adhesive tape structure. Among the above-mentioned sticky tape structure, the sticky tape structure includes sticky tape body, bears membrane and protection film at least, through setting up the sharp angle portion that can warp on the protection film, when a plurality of sticky tape structures pile up, can form the clearance with the help of sharp angle portion between two adjacent sticky tape structures, and then avoid appearing taking out the condition of a plurality of sticky tape structures to production efficiency has been improved.

Description

Adhesive tape structure

Technical Field

The application relates to the technical field of display, in particular to an adhesive tape structure.

Background

The adhesive tape is widely applied to electronic products and can be used for attaching a glass cover plate, a touch film or a display screen. Before the adhesive tape is used for lamination, the adhesive tape needs to be arranged between the bearing film and the protective film to form an adhesive tape structure so as to protect the adhesive tape. In the related art, to meet the production requirement, a plurality of adhesive tape structures are generally stacked together, and when the adhesive tape is required to be attached, the adhesive tape structure located at the uppermost layer is taken out. In this process, a plurality of adhesive tape structures are easily taken out, thereby affecting the production process.

Disclosure of Invention

Based on this, it is necessary to provide a tape structure to avoid taking out a plurality of tape structures, thereby avoiding affecting the production process.

The application provides a sticky tape structure, include:

the adhesive tape comprises an adhesive tape body, a first adhesive tape and a second adhesive tape, wherein the adhesive tape body is provided with a first surface and a second surface which are oppositely arranged along a first direction;

the bearing film is covered on the first surface; and

A protective film covering the second surface;

wherein the protective film comprises a bonding region bonded with the adhesive tape body and a non-bonding region surrounding the bonding region;

the protective film has a plurality of sharp corners provided in the non-bonded region, the sharp corners being configured by retaining portions of the protective film by means of slits formed in the protective film, the sharp corners being capable of flexing in a direction away from the adhesive tape body.

In one embodiment, the slit is configured to have first and second sections that intersect;

the sharp corner is formed by the first and second sections intersecting.

In one embodiment, the first segment and the second segment intersect to form four of the sharp corners.

In one embodiment, the first segment and the second segment are configured as straight segments.

In one embodiment, the midpoint of the first segment and the midpoint of the second segment coincide with each other.

In one embodiment, the first section and the second section are perpendicular to each other.

In one embodiment, the length of the first segment and the length of the second segment are equal.

In one embodiment, the length of the first segment and the length of the second segment are each 5 millimeters.

In one embodiment, all of the slits are uniformly disposed within the non-conforming region.

In one embodiment, the ratio of the total area of orthographic projections of all the sharp corners on a reference surface to the area of orthographic projections of the surface of the protective film, which is away from the adhesive tape body, on the reference surface is less than or equal to 0.4;

the reference plane is a plane perpendicular to the first direction.

Among the above-mentioned sticky tape structure, the sticky tape structure includes sticky tape body, bears membrane and protection film at least, through setting up the sharp angle portion that can warp on the protection film, when a plurality of sticky tape structures pile up, can form the clearance with the help of sharp angle portion between two adjacent sticky tape structures, and then avoid appearing taking out the condition of a plurality of sticky tape structures to production efficiency has been improved.

Additional aspects and advantages of embodiments of the application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the application.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

FIG. 1 is a schematic diagram of a structure of an adhesive tape according to an embodiment of the related art;

FIG. 2 is a schematic diagram of a structure of an adhesive tape according to another view angle in an embodiment of the related art;

FIG. 3 is a schematic structural diagram of a stacked adhesive tape structure according to an embodiment of the related art;

FIG. 4 is a schematic diagram of a structure for picking up an adhesive tape according to an embodiment of the related art;

FIG. 5 is a schematic view of a tape structure according to an embodiment of the present disclosure;

FIG. 6 is a schematic view of a tape structure according to another embodiment of the present disclosure;

FIG. 7 is a schematic view of a protective film at an angle according to an embodiment of the present disclosure;

FIG. 8 is a schematic view of a protective film according to another embodiment of the present disclosure;

FIG. 9 is a schematic view of a projection of a tape structure according to an embodiment of the present disclosure;

FIG. 10 is a schematic view of the pointed portion in one state according to an embodiment of the present application;

FIG. 11 is a schematic view of the pointed portion in another state according to an embodiment of the present application;

FIG. 12 is a schematic view of a pointed portion in a state according to another embodiment of the present application;

FIG. 13 is a schematic view of a pointed portion in another state according to another embodiment of the present application;

FIG. 14 is a schematic view of a pointed portion in a further embodiment of the present application;

FIG. 15 is a schematic view of a pointed portion in another state according to yet another embodiment of the present application;

FIG. 16 is a schematic view of a pointed portion in a further embodiment of the present application;

FIG. 17 is a schematic view of a pointed portion in another state according to yet another embodiment of the present application;

FIG. 18 is a schematic view of a pointed portion in a state according to yet another embodiment of the present application;

FIG. 19 is a schematic view of a pointed portion in another state according to yet another embodiment of the present application;

FIG. 20 is a schematic view of a tape structure according to yet another embodiment of the present application;

FIG. 21 is a schematic view of a projection of a protective film according to an embodiment of the present application;

fig. 22 is a schematic view of a pick-up tape structure according to an embodiment of the present application.

Reference numerals simply denote:

1: adhesive tape structure 1a: adhesive tape body

1b: carrier film 1c: protective film

P: pressure head Q: suction head

10: adhesive tape structure 100: adhesive tape body

101: first surface 102: a second surface

200: carrier film 300: protective film

And p: sharp corner s: slit(s)

s1: first segment s11: a first subsection

s12: a second subsection s2: second section

s21: third subsection s22: fourth subsection

z1: lamination zone z2: non-bonded region

z21: intermediate zone z22: edge region

c1: first midpoint c2: second midpoint

j: intersection point L1: first size

L2: second dimension α: included angle

i: virtual line d: dividing line

k: opening x: path

R: reference plane Y1: first projection

Y2: second projection Y3: third projection

Y4: fourth projection F1: first direction

F2: second direction F3: third direction of

N1: first boundary line N2: second boundary line

Detailed Description

In order to make the above objects, features and advantages of the present application more comprehensible, a detailed description of embodiments accompanied with figures is provided below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the present application. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application. The embodiments of the present application may be implemented in many other ways than those described herein, and similar modifications may be made by those skilled in the art without departing from the spirit of the invention, so that the embodiments of the present application are not limited to the specific embodiments disclosed below.

It will be appreciated that the terms "first," "second," and the like, as used herein, may be used to describe various terms, and are not to be interpreted as indicating or implying a relative importance or an implicit indication of the number of technical features being indicated. However, unless specifically stated otherwise, these terms are not limited by these terms. These terms are only used to distinguish one term from another. In the description of the embodiments of the present application, the meaning of "a plurality", "a number" or "a plurality" is at least two, such as two, three, etc., unless explicitly defined otherwise.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of embodiments of the present application, unless explicitly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intermediary. Moreover, a first feature being "above," "over" and "on" a second feature may be that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature level is higher than the second feature level. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature level is less than the second feature level.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

Fig. 1 is a schematic structural view showing a tape structure 1 at a view angle in an embodiment of the related art; fig. 2 is a schematic structural view showing a tape structure 1 at another view angle in an embodiment of the related art; fig. 3 is a schematic structural view showing a tape structure 1 stacked in an embodiment of the related art; fig. 4 is a schematic view showing a pick-up tape structure 1 according to an embodiment of the related art; for convenience of explanation, only the contents related to the related art embodiment are shown. One view in fig. 1 is a perspective view of the adhesive tape structure 1, and the other view in fig. 2 is a front view of the adhesive tape structure 1 with respect to fig. 1.

Referring to fig. 1 and 2, in an embodiment of the related art, the tape structure 1 includes a tape body 1a, and a carrier film 1b and a protective film 1c disposed on two sides of the tape body 1 a. The protective film 1c, the tape body 1a, and the carrier film 1b are laminated in this order to form the tape structure 1. As shown in fig. 3, a plurality of adhesive tape structures 1 are typically stacked together to meet production requirements. As shown in fig. 4, when the adhesive tape is required to be attached, the carrier film 1b of the uppermost adhesive tape structure 1 is sucked by the suction head Q on the pressure head P by the pressure head P of the driving machine to take the adhesive tape structure 1. In this process, the situation of taking out a plurality of adhesive tape structures 1 easily occurs, so that the machine cannot perform normal action of tearing off the protective film 1c according to a predetermined procedure, and further the machine is caused to malfunction, thereby affecting the production process.

The inventors of the present application noted that, since the material of the protective film 1c and the material of the carrier film 1b are generally PET (polyethylene glycol terephthalate, polyethylene terephthalate) material, on the one hand, static electricity is easily generated due to friction when taking the adhesive tape structure 1, and on the other hand, the conductive ability of the protective film 1c and the carrier film 1b is poor, and it is difficult to release after storing or generating static electricity. Thus, when the uppermost tape structure 1 is taken, the adjacent tape structures 1 are likely to be attracted together by the static electricity.

In order to alleviate the above problem of taking out a plurality of adhesive tapes due to static electricity generated, the present inventors have found through research that a small amount of air can be introduced between adjacent adhesive tape structures to reduce the electrostatic attraction force generated between the adjacent adhesive tape structures. Specifically, the problem of electrostatic attraction between adjacent tape structures can be alleviated by the manner in which gaps can occur between adjacent tape structures.

Based on this, the inventor of the present application has studied intensively and devised a tape structure in which a flexible sharp corner is provided on a protective film on the tape structure to form the aforementioned gap and thereby alleviate electrostatic attraction between adjacent tape structures.

The tape structure provided in the embodiments of the present application is further described below with reference to the accompanying drawings and some examples.

FIG. 5 illustrates a schematic view of tape structure 10 at one viewing angle in an embodiment of the present application; FIG. 6 illustrates a schematic view of tape structure 10 from another perspective in accordance with one embodiment of the present application; fig. 7 is a schematic view showing the structure of the protective film 300 at an angle in an embodiment of the present application; fig. 8 is a schematic view showing the structure of the protective film 300 at another angle in an embodiment of the present application; for ease of illustration, only matters relevant to the embodiments of the present application are shown. One view in fig. 5 is a front view of the adhesive tape structure 10, the other view in fig. 6 is a bottom view of the adhesive tape structure 10 with respect to fig. 5, one view in fig. 7 is the same as the other view in fig. 6, and the other view in fig. 8 is a perspective view of the protective film 300 structure with respect to fig. 5.

The first direction F1 illustrated in fig. 5 to 8 is a thickness direction of the tape structure 10, the second direction F2 is a length direction of the tape structure 10, and the third direction F3 is a width direction of the tape structure 10. The first direction F1, the second direction F2, and the third direction F3 are perpendicular to each other. This definition is used hereinafter and will not be described in detail.

In some embodiments, referring to fig. 5 to 8, an adhesive tape structure 10 is provided, and the adhesive tape structure 10 includes an adhesive tape body 100, a carrier film 200 and a protective film 300. The tape body 100 has a first surface 101 and a second surface 102 disposed opposite along a first direction F1. The carrier film 200 is disposed on the first surface 101. The protective film 300 is disposed on the second surface 102. The protective film 300 includes a bonding region z1 bonded to the tape body 100 and a non-bonding region z2 surrounding the bonding region z 1. The protective film 300 has a plurality of sharp corners p provided in the non-bonded region z2, and the sharp corners p are configured by leaving portions of the protective film 300 by means of slits s formed in the protective film 300, and the sharp corners p are deflectable in a direction away from the tape main body 100.

The tape body 100 is a member having tackiness on both the first surface 101 and the second surface 102. The carrier film 200 is a member for carrying the tape body 100. When the suction head Q is used to suck the adhesive tape structure 10, the carrier film 200 can be used to suck the adhesive tape structure 10, so as to avoid the damage of the suction head Q to the adhesive tape body 100. The protective film 300 is for protecting the tape body 100. After the suction head Q sucks the tape structure 10, the protective film 300 on the tape structure 10 can be torn off, and then the tape body 100 can be attached to a desired product. After the attachment is completed, the carrier film 200 is torn off again. The adhesive tape body 100, the carrier film 200 and the protective film 300 may be made of PET, or may be made of other materials that can correspondingly perform the corresponding functions.

Alternatively, to facilitate the tearing of the carrier film 200 and the protective film 300 from the adhesive tape body 100, the carrier film 200 and the protective film 300 may be provided as release films. For example, since the carrier film 200 is required to function as a carrier, the carrier film 200 may be provided as a heavy release film, and the protective film 300 may be provided as a light release film. It will be appreciated that heavy and light release films are relatively speaking. That is, the release gram of the carrier film 200 is greater than the release gram of the protective film 300.

The bonding region z1 is a region where the protective film 300 contacts the tape body 100, and the non-bonding region z2 is a region where the protective film 300 does not contact the tape body 100. Taking fig. 7 as an example, the protective film 300 is divided into a bonded region z1 and a non-bonded region z2 by a boundary line d. The shape of the bonding region z1 is adapted to the shape of the tape body 100. It will be appreciated that the shape and location of the attachment zone z1 is related to the tape body 100. When it is necessary to align the tape body 100 with the edge of the protective film 300, the bonding may be performed as illustrated in fig. 7, and the non-bonding region z2 surrounds the three sides of the bonding region z 1. If the adhesive tape body 100 needs to be disposed in the middle of the protective film 300 body, the middle area of the protective film 300 body is the bonding area z1, and at this time, the non-bonding area z2 surrounds the periphery of the bonding area z 1.

Accordingly, the area of the carrier film 200 that is attached to the adhesive tape body 100 and the area that is not attached to the adhesive tape body 100 can be understood by referring to the attached area z1 and the non-attached area z2 of the protective film 300, which are not described herein. In order to avoid the situation that the carrier film 200 touches the product when the carrier film 200 is torn off, the adhesive tape body 100 may be aligned with the edge of the carrier film 200 to laminate the adhesive tape body 100 and the carrier film 200. Meanwhile, when the adhesive tape body 100 is laminated on the protective film 300, the adhesive tape body is aligned to the edge of the protective film 300, so that the protection of the adhesive tape body 100 can be further realized.

It is understood that, in order to facilitate the tearing of the carrier film 200 and the protective film 300, the area of the carrier film 200 and the area of the protective film 300 may be set to be larger than the area of the adhesive tape body 100. For example, as shown in fig. 9, fig. 9 shows a schematic projection diagram of the adhesive tape structure 10 in an embodiment of the present application, defining the reference plane R as a plane perpendicular to the first direction F1, the front projection of the carrier film 200 on the reference plane R as a first projection Y1, the front projection of the protective film 300 on the reference plane R as a second projection Y2, the front projection of the adhesive tape body 100 on the reference plane R as a third projection Y3, the area of the first projection Y1 and the area of the second projection Y2 are equal, and the area of the third projection Y3 is smaller than the area of the first projection Y1 and the area of the second projection Y2. The first projection Y1 and the second projection Y2 coincide with each other, and the third projection Y3 is located within the first projection Y1 and the second projection Y2. Of course, the sizes, positions, etc. of the carrier film 200, the protective film 300, and the adhesive tape body 100 may be set according to actual use requirements, which are not particularly limited in the embodiment of the present application.

The sharp corner p is provided in the non-bonding region z2 of the protective film 300, so that damage to the tape body 100 can be avoided. The sharp corner p refers to a member having a sharp corner, and at least both side edges of the sharp corner p meet to form the sharp corner p having a sharp corner. In the case where the sharp corner p has a sharp corner, the sharp corner p is more likely to be deflected. The sharp corner p is formed by means of a slit s. And the slit s refers to a slit in which at least two portions are separable from each other formed on the protective film 300. The slit s may be formed by, for example, cutting or removing a small portion of the protective film 300. The slit s penetrates the protective film 300 in the first direction F1. Taking fig. 6 to 8 as an example, the slit s is formed by cutting. Alternatively, after the protective film 300 is cut using the cutter table to form the sharp corner p, the sharp corner p may be slightly warped due to being flexible when the protective film 300 is lifted from the cutter table, and thus a gap may be formed between two adjacent adhesive tape structures 10 due to the flexible sharp corner p when the two adjacent adhesive tape structures 10 are laminated. In addition, since the sharp corner portion p is flexible, a gap may be formed between the tape structure 10 and the tape structure 10 adjacent thereto when the tape structure 10 is lifted. Of course, the slit s may alternatively be formed as long as the portion of the protective film 300 that can be formed by the slit s remains and can flex as the sharp corner p, which is not particularly limited in the embodiment of the present application.

Thus, by providing the flexible sharp corner p on the protective film 300, when a plurality of tape structures 10 are stacked, a gap can be formed between two adjacent tape structures 10 by the sharp corner p, thereby reducing electrostatic attraction between two adjacent tape structures 10, avoiding the situation of taking out a plurality of tape structures 10, and improving production efficiency.

FIG. 10 shows a schematic view of the structure of the sharp corner p in one state in one embodiment of the present application; fig. 11 shows a schematic structural view of the sharp corner p in another state in an embodiment of the present application; for ease of illustration, only matters relevant to the embodiments of the present application are shown. In order to clearly show the structure of the sharp corner p, a partial structure of the protective film 300 is shown in fig. 10 and 11, and one state in fig. 10 is a state in which the sharp corner p is not deflected and the other state in fig. 11 is a state in which the sharp corner p is deflected. It will be understood that fig. 12 to 19, which are illustrated later, are not repeated.

In some embodiments, referring lightly to fig. 10 and 11, the slit s is configured to have intersecting first and second segments s1 and s2. The sharp corner p is formed by a first segment s1 and a second segment s2 intersecting. The first segment s1 and the second segment s2 intersect at an intersection point j. A sharp corner is formed at the intersection of the first section s1 and the second section s2. As shown in fig. 11, when the sharp corner p is deflected, an opening k is formed in the protective film 300.

It will be appreciated that the shape of the first section s1 and the shape of the second section s2 may be the same or different. The first segment s1 and the second segment s2 may be configured to include, but are not limited to, one or more of a straight line segment, a folded line segment, and a curved line segment. As long as the sharp corner p can be formed, the embodiment of the present application is not particularly limited. Taking fig. 10 and 11 as an example, a case in which the first section s1 and the second section s2 are configured as curved sections curved toward each other is illustrated. Taking fig. 12 and fig. 13 as an example, fig. 12 illustrates a schematic structural view of the sharp corner p in one state in another embodiment of the present application, and fig. 13 illustrates a schematic structural view of the sharp corner p in another state in another embodiment of the present application, where the first section s1 and the second section s2 are configured as curved sections curved away from each other. Taking fig. 14 and 15 as an example, fig. 14 illustrates a schematic structural view of the sharp corner p in one state in a further embodiment of the present application, and fig. 15 illustrates a schematic structural view of the sharp corner p in another state in a further embodiment of the present application, where the first section s1 and the second section s2 are configured as straight line sections. The shape of the sharp corner p may be constructed according to actual use conditions, which is not particularly limited in the embodiment of the present application.

Fig. 16 is a schematic view showing the structure of the sharp corner p in a state in still another embodiment of the present application; fig. 17 shows a schematic structural view of the sharp corner p in another state in still another embodiment of the present application; fig. 18 shows a schematic structural view of the sharp corner p in a state according to still another embodiment of the present application; fig. 19 shows a schematic view of the structure of the sharp corner p in another state in still another embodiment of the present application; for ease of illustration, only matters relevant to the embodiments of the present application are shown.

In some embodiments, each slit s may form at least one sharp corner p. Taking fig. 10 to 15 as an example, the slit s is schematically shown as being formed with a sharp corner p. Taking fig. 16 and 17 as an example, the slit s is schematically shown as being formed with two sharp corners p. Taking fig. 18 and 19 as an example, the slit s is schematically shown as being formed with four sharp corners p. In contrast, the larger the number of sharp corners p formed by a slit s, the larger the opening k formed in the region where the slit s is located, and thus, the electrostatic attraction between the adjacent tape structures 10 can be further reduced.

It is understood that, among the plurality of slits s provided on the protective film 300, all the slits s may have the same shape or may be different, and may be provided according to actual use conditions, which is not particularly limited in the embodiment of the present application.

In some embodiments, referring to fig. 18 and 19, the slit s has a first section s1 and a second section s2 intersecting with each other, and the slit s is formed with four sharp corners p, that is, the first section s1 and the second section s2 intersect to form four sharp corners p. It can be seen that the first segment s1 and the second segment s2 intersect at an intersection point j, which divides the first segment s1 into a first sub-segment s11 and a second sub-segment s12, and the intersection point j divides the second segment s2 into a third sub-segment s21 and a fourth sub-segment s22, the first sub-segment s11, the second sub-segment s12, the third sub-segment s21 and the fourth sub-segment s22 constituting the four aforementioned sharp corners p. In the case illustrated in fig. 18 and 19, the first segment s1 and the second segment s2 are each configured as a straight segment, that is, the first sub-segment s11, the second sub-segment s12, the third sub-segment s21, and the fourth sub-segment s22 are each also a straight segment. Of course, the first section s1 and the second section s2 may also be configured into desired shapes with reference to those in some of the foregoing embodiments, which are not particularly limited in the present embodiment.

In some embodiments, referring to fig. 14-19, the first section s1 and the second section s2 are configured as straight sections. The first section s1 and the second section s2 configured as straight sections may form at least one sharp corner p. Taking fig. 14 and 15 as an example, a case where the first section s1 and the second section s2 constructed as straight sections are formed with one sharp corner p is illustrated, and at this time, one end of the first section s1 and one end of the second section s2 intersect at an intersection point j. Taking fig. 16 and 17 as an example, a case is illustrated in which the first section s1 and the second section s2 configured as straight sections are formed with two sharp corners p, and at this time, one end of the first section s1 intersects with the middle of the second section s2 at an intersection point j, and the second section s2 is divided into a third sub-section s21 and a fourth sub-section s22 by the intersection point j. Taking fig. 18 and 19 as an example, a case is illustrated in which the first section s1 and the second section s2 configured as straight sections are formed with four sharp corners p, and at this time, the middle of the first section s1 and the middle of the second section s2 intersect at an intersection point j, which divides the first section s1 into a first sub-section s11 and a second sub-section s12, and the intersection point j divides the second section s2 into a third sub-section s21 and a fourth sub-section s22. In this way, the number of sharp corners p required can be obtained by the position of the intersection j.

In some embodiments, please continue to refer to fig. 18 and 19, the midpoint of the first segment s1 is a first midpoint c1, the midpoint of the second segment s2 is a second midpoint c2, and the first midpoint c1 and the second midpoint c2 coincide with each other. That is, the first midpoint c1, the second midpoint c2, and the intersection j overlap. Thus, the first section s1 and the second section s2 can be uniformly divided, respectively, to obtain a more flexible sharp corner p in a limited space. Whereas in the case illustrated in fig. 16 and 17, the intersection j and the second midpoint c2 coincide with each other. In this way, the setting can be made according to the actual use situation.

In some embodiments, please continue with fig. 14-19, the first section s1 and the second section s2 are perpendicular to each other. That is, the first section s1 and the second section s2 intersect to form an included angle α, and the included angle α is 90 degrees. Thereby, a more flexible sharp corner p is facilitated. Meanwhile, when one slit s can form a plurality of sharp corners p, the plurality of sharp corners p may be constructed in a structure in which each sharp corner p can flex.

In some embodiments, please continue with fig. 14-19, the length of the first section s1 and the length of the second section s2 are equal. By constructing the first section s1 and the second section s2 of the same length, the stress environment faced by the first section s1 and the second section s2 can be substantially the same, and thus, a more flexible sharp corner p can be facilitated.

Alternatively, referring to fig. 14 to 19, the length of the first section s1 and the length of the second section s2 are 5 mm. That is, the length of the first section s1 is a first dimension L1, the length of the second section s2 is a second dimension L2, and both the first dimension L1 and the second dimension L2 are 5 millimeters. In this way, the first section s1 and the second section s2 having too short surfaces can not form the sharp corner p, and the first section s1 and the second section s2 having too short surfaces can be prevented from decreasing the stiffness of the protective film 300 and losing the function of protecting the adhesive tape body 100 by the protective film 300.

As one embodiment, as shown in fig. 18 and 19, the slit s is configured as a first segment s1 and a second segment s2 that intersect. The first section s1 and the second section s2 are each configured as a straight section. The midpoint of the first segment s1 and the midpoint of the second segment s2 coincide with an intersection point j, which divides the first segment s1 into a first sub-segment s11 and a second sub-segment s12, and the intersection point j divides the second segment s2 into a third sub-segment s21 and a fourth sub-segment s22. The length of the first segment s1 and the length of the second segment s2 are equal, i.e. the length of the first sub-segment s11, the length of the second sub-segment s12, the length of the third sub-segment s21 and the length of the fourth sub-segment s22 are equal. The first segment s1 and the second segment s2 form an angle α of 90 degrees, i.e. the first sub-segment s11 and the third sub-segment s21 are perpendicular to each other, the first sub-segment s11 and the fourth sub-segment s22 are perpendicular to each other, the second sub-segment s12 and the third sub-segment s21 are perpendicular to each other, and the second sub-segment s12 and the fourth sub-segment s22 are perpendicular to each other. The intersection of the first segment s1 and the second segment s2 forms four sharp corners p of equal shape and size. The first section s1 and the second section s2 form a cross-shaped slit s. With such a slit s structure, when the opening k of the same size is obtained, more sharp corners p can be obtained, and the four obtained sharp corners p are more likely to be deflected.

In some embodiments, please continue to refer to fig. 6-8, all slits s are uniformly arranged in the non-bonding region z2. It will be appreciated that fig. 6 and 8 illustrate a case where all the slits s are substantially uniformly arranged and a plurality of slits s are arranged in a matrix in the non-fitting region z2. In this manner, the adhesive tape structure 10 is facilitated to be taken by the uniformly arranged slits s.

FIG. 20 shows a schematic view of a tape construction 10 according to yet another embodiment of the present application; for ease of illustration, only matters relevant to the embodiments of the present application are shown.

In some embodiments, referring to fig. 20, the non-bonding region z2 is divided into a middle region z21 and edge regions z22 located at both ends of the middle region z 21. The length of the middle region z21 in the second direction F2 is the same as the length of the adhesive tape body 100 in the second direction F2, the boundary of one side of the middle region z21 in the second direction F2 coincides with the boundary of one side of the adhesive tape body 100 in the second direction F2 in the first boundary line N1, and the boundary of the other side of the middle region z21 in the second direction F2 coincides with the boundary of the other side of the adhesive tape body 100 in the second direction F2 in the second boundary line N2. The distribution density of the slits s in the middle region z21 is greater than the distribution density of the slits s in the edge region z22. Since the edge region z22 is more likely to generate a gap than the intermediate region z21, the slit s located in the edge region z22 can be reduced, and the protective film 300 having more rigidity can be obtained. Of course, the distribution density of the slits s in the intermediate region z21 is not so high that the protection stiffness in the intermediate region z21 is not affected. Alternatively, the slits s located in the intermediate region z21 may be uniformly arranged. Taking fig. 20 as an example, a case where slits s located in the intermediate region z21 are arranged in a matrix is illustrated. The setting may be performed according to a specific use case, and this is not particularly limited in the embodiments of the present application.

FIG. 21 shows a schematic projection of a protective film 300 in an embodiment of the present application; for ease of illustration, only matters relevant to the embodiments of the present application are shown.

In some embodiments, referring to fig. 21 in combination with fig. 6 to 8, the ratio of the total area of orthographic projections of all the sharp corners p on the reference surface R to the area of orthographic projections of the surface of the protective film 300 facing away from the adhesive tape body 100 on the reference surface R is less than or equal to 0.4. The reference plane R is a plane perpendicular to the first direction F1. Taking fig. 18 and 19 as an example, two ends of the first segment s1 and two ends of the second segment s2 are sequentially connected to form a quadrangle, that is, for a sharp angle portion p formed by the first segment s11 and the third segment s21, one end of the first segment s11, which faces away from the intersection j, is connected to one end of the third segment s21, which faces away from the intersection j, to form a virtual line i, and the sharp angle portion p can be regarded as being defined by the virtual line i, the first segment s11 and the third segment s 21. The remaining subsections may also be connected to form virtual line i, which is not described in detail herein. Meanwhile, reference may also be made to the sharp angle p and the virtual line i illustrated in fig. 10 to 17. In other words, in the case of the slits s illustrated in fig. 18 and 19, the area of the sharp corner p formed by one slit s can be regarded as the area of the quadrangle enclosed by the four virtual lines i, and the projection of the sharp corner p formed by one slit s is the fourth projection Y4, and the fourth projection Y4 is the quadrangle, that is, the case illustrated in fig. 21. In fig. 21, it can be seen that the front projection of the protective film 300 on the reference plane R is a second projection Y2, and the fourth projection Y4 is located within the second projection Y2.

In this way, by controlling the area of the sharp corner p, the protective film 300 can be made to have a certain stiffness so as to better protect the tape main body 100 while satisfying the above-described gap formation of the protective film 300.

FIG. 22 illustrates a schematic view of the take-up tape structure 10 in one embodiment of the present application; for ease of illustration, only matters relevant to the embodiments of the present application are shown.

Taking fig. 22 as an example, when the suction head Q of the pressure head P picks up the adhesive tape structure 10 located at the uppermost layer, since a gap formed by the sharp corner P exists between the adhesive tape structure 10 at the uppermost layer and the adhesive tape structure 10 adjacent thereto, air can enter between the two adhesive tape structures 10 along the path x, electrostatic adsorption force between the two adhesive tape structures 10 is reduced, and the two adhesive tape structures 10 can be separated, so that only the adhesive tape structure 10 located at the uppermost layer can be picked up.

In summary, in the adhesive tape structure 10 provided in this embodiment of the present application, through setting up the sharp angle portion p that can flex on the protection film 300, when a plurality of adhesive tape structures 10 are piled up, can form the clearance with the help of sharp angle portion p between two adjacent adhesive tape structures 10, reduced the electrostatic adsorption force between these two adhesive tape structures 10, avoid these two adhesive tape structures 10 to appear the condition of adhesion, and then avoid taking out the condition of a plurality of adhesive tape structures 10, reduced the machine and torn the membrane is unusual to production efficiency has been improved. Meanwhile, by controlling the distribution density and shape configuration of the sharp corners p, not only can the formation of the flexible sharp corners p be more facilitated, but also the protective film 300 can be maintained to have a certain stiffness to protect the adhesive tape body 100. In this process, only the slit s is provided on the non-bonding region z2 of the protective film 300, no other structure is added, the performance of the adhesive tape body 100 and the manufacturing process of the adhesive tape structure 10 are not affected, and the cost is controllable.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples merely represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.

Claims

1. A tape construction comprising:

the bearing film is covered on the first surface; and

A protective film covering the second surface;

2. The tape construction of claim 1, wherein the slit is configured to have intersecting first and second sections;

the sharp corner is formed by the first and second sections intersecting.

3. The tape construction of claim 2 wherein the first and second segments intersect to form four of the sharp corners.

4. The tape construction of claim 2, wherein the first and second segments are configured as straight segments.

5. The tape construction of claim 4 wherein a midpoint of the first segment and a midpoint of the second segment coincide with each other.

6. The tape construction of claim 4 wherein the first and second sections are perpendicular to each other.

7. The tape construction of claim 4 wherein the length of the first segment and the length of the second segment are equal.

8. The tape construction of claim 7, wherein the length of the first segment and the length of the second segment are each 5 millimeters.

9. The tape construction of any of claims 1-8, wherein all of the slits are uniformly disposed within the non-conforming region.

10. The adhesive tape structure according to any one of claims 1 to 8, wherein a ratio of a total area of orthographic projections of all the sharp corners on a reference surface to an area of orthographic projections of a side surface of the protective film facing away from the adhesive tape body on the reference surface is 0.4 or less;

the reference plane is a plane perpendicular to the first direction.