A type of book cover
By designing book covers with folding edges and corner reinforcement plates, the problems of existing technologies being unable to reinforce book corners and adapt to books of different thicknesses have been solved, achieving a double-layer protection effect that automatically adapts to books of different thicknesses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DELI GROUP CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-06-30
Smart Images

Figure CN224426927U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of stationery, and more specifically to a book cover. Background Technology
[0002] Book covers and book films are protective products applied to the outside of book covers, effectively preventing wear and tear and corner damage. A book film consists of a top layer, an adhesive layer, and release paper. The top layer, as the main protective layer, is bonded to the release paper via the adhesive layer. To use, simply peel off the release paper and use the adhesive layer to smoothly adhere the top layer to the cover surface, forming a physical protective barrier. However, book covers are prone to deformation and curling at the corners, and current book covers cannot effectively reinforce these corners. Furthermore, due to varying book thicknesses, the area occupied by the spine on the book cover differs, and the distance between the book cover and the corners of the book cover also varies. Most book covers on the market have either beveled or double right angles at the corners. When covering a book, book covers with beveled or double right angles at the corners cannot perfectly match the book cover, often requiring users to fine-tune the corners as needed. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a book cover that, in addition to protecting the book cover, can strengthen the protection of the corner areas and reinforce the cover corners. Moreover, it can adapt to books of different thicknesses and does not require cutting the corners according to the thickness of the book when covering it.
[0004] The technical solution of this utility model is to provide a book cover, including a face film, an adhesive layer, and a release paper of the same shape as the face film. The face film is adhered to the release paper by the adhesive layer. The release paper is a one-piece structure, including a first cover and a second cover. The upper, lower, and right sides of the first cover are respectively provided with a first upward fold-over edge, a first downward fold-over edge, and a first side fold-over edge. The upper, lower, and left sides of the second cover are respectively provided with a second upward fold-over edge, a second downward fold-over edge, and a second side fold-over edge. The upper right corner and lower right corner of the first cover, and the second cover... At the upper left and lower left corners of the surface, there is a right-angled triangle-shaped corner reinforcement piece. The right side of the first upward folded edge and the first downward folded edge, and the left side of the second upward folded edge and the second downward folded edge are respectively a right-angled side of the corresponding corner reinforcement piece. The upper and lower sides of the first side folded edge and the upper and lower sides of the second side folded edge are respectively the other right-angled sides of the corresponding corner reinforcement piece, and all of them are provided with a knife line. The surface film is provided with the same knife line as the release paper. The surface film and the release paper can be torn open simultaneously along any knife line.
[0005] Compared with existing technologies, the book-wrapping product of this utility model has the following advantages: When wrapping a book, first tear any corner reinforcement piece along the corresponding cut line, then fold the first or second folded edge where the cut line is located towards the adhesive layer and stick it to the inside of the book cover. Next, fold the first upper folded edge, first lower folded edge, second upper folded edge, or second lower folded edge where the corner reinforcement piece is located towards the adhesive layer and stick it to the inside of the book cover. At this time, the corner reinforcement piece can be folded to the outside of the book cover and pasted onto the surface film already pasted at the corresponding corner of the book cover. This is equivalent to pasting two layers of surface film on the corner of the book cover. In this way, the book cover can be protected while also providing additional protection. The corner areas are reinforced to strengthen the cover corners. For books of varying thicknesses, the distance between the book cover and the corner of the book cover varies, and the area that the corner reinforcement sheet can fold onto the outside of the book cover also differs. That is, the area that the corner reinforcement sheet can reinforce varies at the corner. However, regardless of the book's thickness, as long as the first and second folding edges (where the cutting line is located) can be folded and pasted onto the inside of the book cover, the corner reinforcement sheet has sufficient slack to fold and paste onto the already pasted film at the corresponding corner of the book cover. Therefore, the corner reinforcement sheet can adapt to books of different thicknesses by adjusting the area of reinforcement, eliminating the need to cut the corners according to the book's thickness when wrapping the book.
[0006] Preferably, the right side of the first upward fold and the first downward fold, and the left side of the second upward fold and the second downward fold are each a right-angled side of the corresponding corner reinforcement piece, and all are provided with a fold line. The corner reinforcement piece can be folded along the fold line to the outer surface of the surface film. This structure facilitates folding the corner reinforcement piece along the fold line, allowing it to fit snugly against the corresponding corner of the book cover.
[0007] Preferably, the corner reinforcement pieces are all isosceles right triangles, and the length of the fold line is equal to the length of the cutting line. With this structure, the reinforced area at the corner of the cover is also an isosceles right triangle.
[0008] Preferably, the two right-angled sides of the corner reinforcement piece are of unequal length, and the length of the fold line is greater than or less than the length of the cutting line. With this structure, the reinforced area at the corner of the cover is not an isosceles right triangle; the length of the fold line being greater than the length of the cutting line increases the width of the first upward fold, the first downward fold, the second upward fold, and the second downward fold to accommodate longer books; the length of the fold line being less than the length of the cutting line increases the width of the first side fold and the second side fold to accommodate wider or thicker books.
[0009] Preferably, the release paper is provided with an upper die-cutting line, a lower die-cutting line, a first side die-cutting line, and a second side die-cutting line; the first upward folding edge, the first downward folding edge, and the first side folding edge can be torn off from the release paper along the upper die-cutting line, the lower die-cutting line, and the first side die-cutting line, respectively; the second upward folding edge, the second downward folding edge, and the second side folding edge can be torn off from the release paper along the upper die-cutting line, the lower die-cutting line, and the second side die-cutting line, respectively. With this structure, only the release paper for the area to be pasted on the top layer of the film needs to be peeled off, and after pasting, the release paper for the next area to be pasted is peeled off. Throughout the book-wrapping process, the adhesive layers on the top layer of the film will not stick together or accidentally stick to other areas.
[0010] Preferably, a spine seal is provided between the first cover and the second cover, and both sides of the spine seal have a die-cut line, allowing the spine seal to be torn off from the release paper along the die-cut lines on both sides. With this structure, when wrapping the book, the spine seal can be torn off first, and the corresponding part of the cover can be pasted onto the spine of the book, facilitating subsequent processing of the side covers and ensuring a smooth finish. Attached Figure Description
[0011] Figure 1 This is a structural schematic diagram of the book-covering product of this utility model.
[0012] Figure 2 This is a structural diagram of the book-wrapping supplies of this utility model in the first step of book wrapping.
[0013] Figure 3 This is a structural diagram of the book-wrapping product of this utility model in the second step of book wrapping.
[0014] Figure 4 This is a structural diagram of the book-wrapping product of this utility model in the third step of book wrapping.
[0015] Figure 5 This is a schematic diagram of the book-wrapping product of this utility model after the book is wrapped.
[0016] As shown in the figure: 1. First cover, 1-1. First upward fold-over edge, 1-2. First downward fold-over edge, 1-3. First side fold-over edge, 1-4. First upward cutting line, 1-5. First downward cutting line, 1-6. First upward reverse fold line, 1-7. First downward reverse fold line, 2. Second cover, 2-1. Second upward fold-over edge, 2-2. Second downward fold-over edge, 2-3. Second side fold-over edge, 2-4. Second upward cutting line, 2-5. Second downward cutting line, 2-6. Second upward reverse fold line, 2-7. Second downward reverse fold line, 3. Upper die-cutting line, 4. Lower die-cutting line, 5. First side die-cutting line, 6. Second side die-cutting line, 7. Spine seal, 8. Spine center die-cutting line, 9. Corner reinforcement piece. Detailed Implementation
[0017] To better understand this application, various aspects of this application will be described in more detail with reference to the accompanying drawings. It should be understood that these detailed descriptions are merely illustrative of exemplary embodiments of this application and are not intended to limit the scope of this application in any way. Throughout the specification, the same reference numerals refer to the same elements.
[0018] In the accompanying drawings, the thickness, size, and shape of the objects have been slightly exaggerated for illustrative purposes. The drawings are for illustrative purposes only and are not drawn to scale.
[0019] It should also be understood that the terms "comprising," "having," "including," and "containing," when used in this specification, indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof. Furthermore, when expressions such as "...at least one" appear after a list of listed features, they modify the entire listed feature, not individual elements in the list.
[0020] The book cover of this utility model includes a top film, an adhesive layer, and a release paper of the same shape as the top film. The top film is attached to the release paper by the adhesive layer.
[0021] like Figure 1 As shown, the release paper is a one-piece structure, including a first cover 1 and a second cover 2. The first cover 1 has a first upward folding edge 1-1, a first downward folding edge 1-2, and a first side folding edge 1-3 on its upper, lower, and right sides, respectively. The second cover 2 has a second upward folding edge 2-1, a second downward folding edge 2-2, and a second side folding edge 2-3 on its upper, lower, and left sides, respectively. The release paper is provided with an upper die-cutting line 3, a lower die-cutting line 4, a first side die-cutting line 5, and a second side die-cutting line 6. The first upward folding edge 1-1, the first downward folding edge 1-2, and the first side folding edge 1-3 can be torn off from the release paper along the upper die-cutting line 3, the lower die-cutting line 4, and the first side die-cutting line 5, respectively. The second upward folding edge 2-1, the second downward folding edge 2-2, and the second side folding edge 2-3 can be torn off from the release paper along the upper die-cutting line 3, the lower die-cutting line 4, and the second side die-cutting line 6, respectively. A spine seal 7 is provided between the first cover 1 and the second cover 2. Both sides of the spine seal 7 are provided with spine center die-cutting lines 8, and the spine seal 7 can be torn off from the release paper along the spine center die-cutting lines 8 on both sides.
[0022] At the upper right and lower right corners of the first cover 1, and at the upper left and lower left corners of the second cover 2, there is an isosceles right-angled triangle-shaped corner reinforcement piece 9. The upper and lower sides of the first side-folding edge 1-3 and the upper and lower sides of the second side-folding edge 2-3 are each the other right-angled sides of the corresponding corner reinforcement piece 9, and both are provided with a cutting line. The surface film has the same cutting line as the release paper, and the surface film and release paper can be torn open simultaneously along any one of the cutting lines. The right sides of the first upward folding edge 1-1 and the first downward folding edge 1-2, and the left sides of the second upward folding edge 2-1 and the second downward folding edge 2-2 are each a right-angled side of the corresponding corner reinforcement piece 9, and both are provided with a reverse fold line. The reverse fold line indicates that the corner reinforcement piece 9 can be folded along the reverse fold line to the outer surface of the surface film.
[0023] The upper side of the first side folding edge 1-3 is provided with a first upper cutting line 1-4, and the right side of the first upper folding edge 1-1 is provided with a first upper reverse folding line 1-6. The first upper cutting line 1-4 and the first upper reverse folding line 1-6 are the cutting line and reverse folding line of the corner reinforcement piece 9 located at the upper right corner of the first cover 1, respectively, and the two are of equal length.
[0024] The lower side of the first side folding edge 1-3 is provided with a first downward cutting line 1-5, and the right side of the first downward folding edge 1-2 is provided with a first downward reverse fold line 1-7. The first downward cutting line 1-5 and the first downward reverse fold line 1-7 are the cutting line and reverse fold line of the corner reinforcement piece 9 located at the lower right corner of the first cover 1, respectively, and the two are of equal length.
[0025] The upper side of the second side folding edge 2-3 is provided with a second upper cutting line 2-4, and the left side of the second upper folding edge 2-1 is provided with a second upper reverse folding line 2-6. The second upper cutting line 2-4 and the second upper reverse folding line 2-6 are respectively the cutting line and the reverse folding line of the corner reinforcement piece 9 located at the upper left corner of the second cover 2, and the two are of equal length.
[0026] The lower side of the second side folding edge 2-3 is provided with a second downward cutting line 2-5, and the left side of the second downward folding edge 2-2 is provided with a second downward reverse fold line 2-7. The second downward cutting line 2-5 and the second downward reverse fold line 2-7 are respectively the cutting line and the reverse fold line of the corner reinforcement piece 9 located at the lower left corner of the second cover 2, and the two are of equal length.
[0027] When using this book-covering product, first peel off the spine seal 7 and attach the corresponding surface film to the spine of the book; then peel off the first cover 1 and attach the corresponding surface film to the outside of one side of the book cover; next, peel off the first upper cutting line 1-4 and peel off the first side folding edge 1-3, fold the corresponding surface film to the first side folding edge 1-3 and attach it to the inside of that side of the book cover, as shown below. Figure 2As shown in the image; next, tear off the first fold-up edge 1-1, fold the corresponding surface film of the first fold-up edge 1-1 and stick it to the inside of the book cover on that side, as shown. Figure 3 As shown in the image; then, the corner reinforcement piece 9 at the upper right corner of the first cover 1 is folded over to the outside of the book cover on that side according to the markings of the first upper fold lines 1-6, and pasted onto the surface film already pasted at the upper right corner of the book cover on that side, as shown in the image. Figure 4 As shown, two layers of protective film are applied to the upper right corner of the book cover on this side, thus reinforcing and strengthening the protection. Then, the same method is used to attach the film to the other corners of the book. The finished book cover looks like this. Figure 5 As shown in the image.
[0028] In other embodiments, the spine die-cutting lines 8 on both sides of the spine seal 7 may not be provided; the corner reinforcement piece 9 may not be an isosceles right triangle, the two right-angled sides may not be of equal length, and the length of the reverse fold line may be greater than or less than the length of the die-cutting line.
[0029] The above are merely specific embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Any modifications or equivalent substitutions to this utility model without departing from its spirit and scope should be covered within the protection scope of the claims of this utility model.
Claims
1. A book cover comprising a face film, an adhesive layer, and a release paper of the same shape as the face film, wherein the face film is adhered to the release paper by the adhesive layer; the release paper is a one-piece structure comprising a first cover (1) and a second cover (2), wherein the upper, lower, and right sides of the first cover (1) are respectively provided with a first upward folding edge (1-1), a first downward folding edge (1-2), and a first side folding edge (1-3), and the upper, lower, and left sides of the second cover (2) are respectively provided with a second upward folding edge (2-1), a second downward folding edge (2-2), and a second side folding edge (2-3); characterized in that, At the upper right and lower right corners of the first cover (1), and at the upper left and lower left corners of the second cover (2), there is a right-angled triangle-shaped corner reinforcement piece (9). The right side of the first upper fold (1-1) and the first lower fold (1-2), and the left side of the second upper fold (2-1) and the second lower fold (2-2) are respectively a right-angled side of the corresponding corner reinforcement piece (9). The upper and lower sides of the first side fold (1-3) and the upper and lower sides of the second side fold (2-3) are respectively another right-angled side of the corresponding corner reinforcement piece (9) and are all provided with a knife line. The surface film is provided with the same knife line as the release paper. The surface film and the release paper can be torn open at the same time along any knife line.
2. The book-covering product according to claim 1, characterized in that, The right side of the first upward folded edge (1-1) and the first downward folded edge (1-2), and the left side of the second upward folded edge (2-1) and the second downward folded edge (2-2) are respectively a right-angled edge of the corresponding corner reinforcement piece (9) and are all provided with a reverse fold line. The reverse fold line is used to indicate that the corner reinforcement piece (9) can be folded along the reverse fold line to the outer surface of the surface film.
3. The book-covering product according to claim 2, characterized in that, The corner reinforcement pieces (9) are all isosceles right triangles, and the length of the reverse fold line is equal to that of the knife line.
4. The book-covering product according to claim 2, characterized in that, The two right-angled sides of the corner reinforcement piece (9) are of unequal length, and the length of the reverse fold line is greater than or less than the length of the knife line.
5. The book-covering product according to claim 1, characterized in that, The release paper is provided with an upper die line (3), a lower die line (4), a first side die line (5), and a second side die line (6); the first upper folded edge (1-1), the first lower folded edge (1-2), and the first side folded edge (1-3) can be torn off from the release paper along the upper die line (3), the lower die line (4), and the first side die line (5), respectively; the second upper folded edge (2-1), the second lower folded edge (2-2), and the second side folded edge (2-3) can be torn off from the release paper along the upper die line (3), the lower die line (4), and the second side die line (6), respectively.
6. The book-covering product according to claim 1, characterized in that, A spine seal (7) is provided between the first cover (1) and the second cover (2). Both sides of the spine seal (7) are provided with spine die lines (8). The spine seal (7) can be torn off from the release paper along the spine die lines (8) on both sides.