Leakproof writing type refill for notebook

Abstract

The utility model relates to office supplies field discloses the anti -infiltration writing type notebook refill, including refill paper, a plurality of binding holes are opened in the refill paper, the side of refill paper is provided with fastening mechanism, the inside of refill paper is provided with anti -infiltration subassembly, the fastening mechanism includes the clamping block, the side fixed connection in the side of refill paper of clamping block, the other side fixed connection of clamping block has the patch, the top and bottom of a plurality of binding holes all are fixedly connected with the boss ring, the top fixedly connected with the connecting plate of refill paper, the bottom fixedly connected with the positioning plate of refill paper, the side fixedly connected with the elastic band of positioning plate, the elastic band is fixedly connected with the sticky board, in the utility model, through clamping block patch lateral limit, boss ring and binding hole match and guide, connecting plate positioning plate cooperate elastic band and stick to close, prevent refill deviation and scatter.

Description

Technical Field

[0001] This utility model relates to the field of office supplies, and in particular to a waterproof writing notebook refill. Background Technology

[0002] Traditional paper has loose fibers, making it easy for ink from ballpoint pens and fountain pens to spread, resulting in blurry writing, unusable back pages, wasted paper, and a poor writing experience. As office work and study demand higher quality and efficiency in writing, and as ballpoint pens, watercolor pens, and other diverse writing tools become more popular, the market needs paper products that can solve the problem of ink penetration. Therefore, ink-proof writing notebook refills have emerged. Currently, for writing notebooks, the replacement refills are selected according to the size of the outer shell. For loose-leaf notebooks, the replacement refills are aligned with the rings of the outer shell's loose-leaf binder through the holes on the edge and inserted one by one to secure them. For perfect-bound and strapped notebooks, the replacement refills are placed directly into the inner page slots of the outer shell. The replacement refills are then secured from the cover, back cover, and sides using the straps, buckles, or elastic clips provided with the outer shell to prevent displacement. No additional tools are required for installation; only matching the size and fixing structure is needed to ensure that the replacement refills fit the outer shell flat and meet daily writing and page-turning needs. Currently, the paper used in anti-permeability writing notebook refills undergoes special processes such as optimized pulp ratio and surface sizing, resulting in excellent ink absorption. During writing, the ink does not penetrate or smudge, and it writes smoothly with various writing tools such as ballpoint pens, fountain pens, and watercolor pens, producing consistently clear and neat handwriting. However, when multiple refills are installed on a binder, they may scatter due to insecure mounting. Furthermore, when sticky notes or other paper strips are placed inside the refills, the lack of corresponding fixing structure within the refills causes these notes to fall out. Therefore, anti-permeability writing notebook refills are proposed to address these issues. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a waterproof writing notebook insert, which aims to improve the problem that multiple inserts will scatter when installed on a loose-leaf cover at the same time, and that notes or other paper strips placed inside the inserts will be lost.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The device includes a core sheet with multiple binding holes, a fastening mechanism on one side, and an anti-leakage component inside. The fastening mechanism includes a locking block, one side of which is fixedly connected to one side of the core paper, and the other side of which is fixedly connected to a patch. The top and bottom of the plurality of binding holes are fixedly connected to protruding rings. The top of the core paper is fixedly connected to a connecting plate, and the bottom of the core paper is fixedly connected to a positioning plate. One side of the positioning plate is fixedly connected to an elastic band, and an adhesive plate is fixedly connected to the elastic band. As a further description of the above technical solution: The seepage prevention component includes a seepage prevention layer, an ink-locking layer is fixedly connected to the bottom of the seepage prevention layer, and an isolation layer is fixedly connected to the bottom of the ink-locking layer. As a further description of the above technical solution: The ink-locking layer is disposed in the middle layer of the core paper, and the material of the ink-locking layer is a sizing starch layer; As a further description of the above technical solution: The isolation layer is disposed at the bottom layer of the core paper, and the material of the isolation layer is an ultra-thin polylactic acid film; As a further description of the above technical solution: The impermeable layer is disposed on top of the core paper, and the material of the impermeable layer is a water-based acrylic resin coating; As a further description of the above technical solution: The multiple binding holes are circular through holes, and the multiple binding holes are evenly distributed on the side of the core paper near the card block; As a further description of the above technical solution: The convex ring is a circular ring, and the convex ring is used to precisely guide the loose-leaf ring through the multiple binding holes; As a further description of the above technical solution: The elastic band is located on the side of the replacement paper away from the card block to prevent the replacement paper from falling off.

[0005] This utility model has the following beneficial effects: 1. In this utility model, the structure of the card block and patch being attached to the loose-leaf cover limits the lateral movement of the replacement paper to prevent it from shifting. The convex ring is precisely matched with the binding hole, allowing the loose-leaf ring to pass through the binding hole accurately. The connecting plate and positioning plate guide the replacement paper to stack. The elastic band stretches the adhesive plate to adhere to the connecting plate, sealing the sides of the replacement paper and constraining it as a whole, thus achieving the functions of preventing it from scattering and preventing sticky notes from falling off.

[0006] 2. In this utility model, the ink diffusion suppression function is achieved through the anti-seepage layer, the ink-locking layer drives the filling of fiber gaps and the adsorption of ink droplets to achieve the middle layer ink-locking function, and the isolation layer drives the bottom layer anti-seepage function to achieve the ultimate seepage barrier function. The three-layer structure works together to achieve the anti-seepage function of the replacement core paper. Attached Figure Description

[0007] Figure 1 This is a three-dimensional schematic diagram of the anti-permeability writing notebook replacement core proposed in this utility model; Figure 2 This is a schematic diagram of the card block of the anti-permeability writing notebook replacement core proposed in this utility model; Figure 3 This is a schematic diagram of the adhesive plate for the anti-permeability writing notebook insert proposed in this utility model. Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0008] Legend: 1. Replacement core paper; 2. Binding holes; 3. Fastening mechanism; 31. Connecting plate; 32. Adhesive plate; 33. Elastic band; 34. Positioning plate; 35. Patch; 36. Locking block; 37. Raised ring; 4. Anti-seepage components; 41. Anti-seepage layer; 42. Ink-locking layer; 43. Isolation layer. Detailed Implementation

[0009] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0010] Water-resistant writing notebook refill, refer to Figure 1 and Figure 2 The system includes a core sheet 1, which has multiple binding holes 2. The binding holes 2 of each core sheet 1 are precisely aligned so that each core sheet 1 can be stacked in an orderly manner along the same axis. A fastening mechanism 3 is provided on one side of the core sheet 1 so that multiple core sheets 1 will not fall off. An anti-bleeding component 4 is provided inside the core sheet 1. When ink comes into contact with the paper surface, the anti-bleeding component 4 ensures that the ink is only retained on the surface of a single core sheet 1, preventing it from spreading to the stacked core sheets 1 below. Specifically, multiple sheets of replacement paper 1 are stacked in an orderly manner through precisely aligned binding holes 2, the fastening mechanism 3 uses lateral pressure to prevent the replacement paper 1 from detaching, and the anti-bleeding component 4 blocks ink penetration, so that the replacement paper 1 can be written clearly in the stacked state.

[0011] The fastening mechanism 3 includes a locking block 36. One side of the locking block 36 is fixedly connected to one side of the core paper 1. The locking block 36 is made of wear-resistant hard plastic and has a long strip structure. The locking block 36 is fixedly connected to one edge of the core paper 1. The other side of the locking block 36 is fixedly connected to a patch 35, which can be attached to the binder cover. The top and bottom of the multiple binding holes 2 are all fixedly connected to a protruding ring 37. The protruding ring 37 is a circular ring made of high-density polyethylene, and its inner diameter is precisely matched with the binding hole 2. The top of the core paper 1 is fixedly connected to a connecting plate 31, and the bottom of the core paper 1 is fixedly connected to a positioning plate 34. One side of the positioning plate 34 is fixedly connected to an elastic band 33, and an adhesive plate is fixedly connected to the elastic band 33. 32. The adhesive plate 32 on the elastic band 33 is attached to the connecting plate 31 to seal the side of the core paper 1, preventing the sticky notes inside the core paper 1 from falling out. The raised ring 37 is a circular ring, which is used to accurately guide the loose-leaf ring through multiple binding holes 2. The thickness of the raised ring 37 is slightly higher than the surface of the core paper 1, which reduces the wear of the loose-leaf ring on the paper and extends the service life of the core paper 1. The elastic band 33 is set on the side of the core paper 1 away from the card block 36 to prevent the core paper 1 from falling out. It can effectively prevent multiple stacked core papers 1 from falling out during page turning and carrying, ensuring the stability of use. The multiple binding holes 2 are circular through holes, and the multiple binding holes 2 are evenly distributed on the side of the core paper 1 close to the card block 36. Specifically, the card block 36 fits against the edge of the replacement paper 1, and its side patch 35 fits against the loose-leaf cover to form a lateral limit, preventing the replacement paper 1 from shifting left or right. The circular convex ring 37, with its inner diameter precisely matched to the binding hole 2, provides guidance for the loose-leaf ring to pass through, and its slightly higher thickness reduces friction between the ring and the paper, maintaining the integrity of the paper. The top connecting plate 31 and the bottom positioning plate 34 guide multiple sheets of replacement paper 1 to be neatly stacked. The elastic band 33 on the side away from the card block 36 can be stretched to make the adhesive plate 32 fit against the connecting plate 31, sealing the side of the replacement paper 1. At the same time, the contraction tension of the elastic band 33 constrains the whole, suppressing the tendency of the stacked replacement paper 1 to scatter when turning pages or carrying it, and also preventing the internal notes from falling off.

[0012] Reference Figure 3 and Figure 4 The anti-permeability layer 41 is set on the top of the core paper 1. The material of the anti-permeability layer 41 is a water-based acrylic resin coating. Due to the dense properties of the coating, it first blocks the ink from spreading and smudging on the surface of the paper, providing a pre-protection for ink locking. The ink locking layer 42 is set in the middle layer of the core paper 1. The material of the ink locking layer 42 is a sizing starch layer. When the ink comes into contact with the paper surface, the ink locking layer 42 quickly absorbs and fixes the ink droplets, inhibiting their tendency to penetrate and spread into the paper. The isolation layer 43 is set in the bottom layer of the core paper 1. The material of the isolation layer 43 is an ultra-thin polylactic acid film. Utilizing the dense and non-porous properties of the film, it forms a physical barrier to further block the trace amount of ink that is not completely locked from penetrating downwards, avoiding affecting the core paper 1 below. Specifically, the anti-permeability layer 41 inhibits the diffusion of ink droplets on the surface, the ink-locking layer 42 adsorbs and fixes ink droplets to prevent permeation, and the isolation layer 43 uses a physical barrier to intercept residual ink. The three-layer structure works in a progressive manner to completely block ink penetration and ensure clear writing without smudging.

[0013] The implementation principle of this application embodiment is as follows: When it is necessary to install the replacement paper 1, the card block 36 on one side of the replacement paper 1 is aligned with the loose ring on the loose-leaf cover, and the patch 35 on one side of the card block 36 is attached to the card holder for installing the loose ring to initially fix the replacement paper 1. Then, the loose ring is inserted into the binding hole 2 and locked. The protruding rings 37 at the top and bottom of the binding hole 2 make the loose ring pass through the binding hole 2 more accurately. Multiple replacement papers 1 are inserted into the card block 36, making it difficult for multiple replacement papers 1 to fall off. Pull the elastic band 33 on the other side of the replacement paper 1 and attach the side of the elastic band 33 with the adhesive plate 32 to the connecting plate 31 at the top of the replacement paper 1. Under the positioning action of the positioning plate 34 on the other side of the elastic band 33, the other side of the replacement paper 1 can be carefully secured to prevent the sticky notes inside the replacement paper 1 from falling off, and also to prevent the replacement paper 1 from falling off. The top of the insert paper 1 is an anti-bleeding layer 41, which is a water-based acrylic resin coating with high transparency. After coating, it does not affect the writing feel of the paper and reduces the diffusion and penetration of ballpoint pen ink. It also has strong adhesion and good washability, and the coating is not easily peeled off even after long-term writing. The ink-locking layer 42 is a sizing starch layer, in which a small amount of resin is added to the starch paste as a water-resistant additive, and it is attached to the middle layer of the paper through a sizing process. Starch itself can fill the gaps between paper fibers, and combined with the water-resistant additive, it can enhance the ink-locking ability. Even if a small amount of ink breaks through the anti-bleeding layer 41, it can be firmly absorbed by this layer, preventing it from penetrating to the bottom layer. The isolation layer 43 is an ultra-thin polylactic acid film, adhered to the bottom layer of the insert paper 1. The polylactic acid film has strong water resistance, completely blocking penetrating ink, and has a high degree of adhesion to the paper, preventing page lifting. It is also biodegradable after disposal. The anti-bleeding components 4 ensure that the insert paper 1 does not bleed during writing, and does not affect the efficiency of subsequent writing.

[0014] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A waterproof writing notebook refill, comprising refill paper (1), characterized in that: The core paper (1) has multiple binding holes (2), a fastening mechanism (3) is provided on one side of the core paper (1), and an anti-seepage component (4) is provided inside the core paper (1). The fastening mechanism (3) includes a locking block (36), one side of which is fixedly connected to one side of the core paper (1), and the other side of which is fixedly connected to a patch (35). The top and bottom of the multiple binding holes (2) are fixedly connected to a protruding ring (37). The top of the core paper (1) is fixedly connected to a connecting plate (31), and the bottom of the core paper (1) is fixedly connected to a positioning plate (34). One side of the positioning plate (34) is fixedly connected to an elastic band (33), and an adhesive plate (32) is fixedly connected to the elastic band (33).

2. The anti-permeability writing notebook refill according to claim 1, characterized in that: The seepage prevention component (4) includes a seepage prevention layer (41), an ink-locking layer (42) is fixedly connected to the bottom of the seepage prevention layer (41), and an isolation layer (43) is fixedly connected to the bottom of the ink-locking layer (42).

3. The anti-permeability writing notebook refill according to claim 2, characterized in that: The ink-locking layer (42) is disposed in the middle layer of the core paper (1), and the material of the ink-locking layer (42) is a sizing starch layer.

4. The anti-permeability writing notebook refill according to claim 2, characterized in that: The isolation layer (43) is disposed at the bottom layer of the core paper (1), and the material of the isolation layer (43) is an ultra-thin polylactic acid film.

5. The anti-permeability writing notebook refill according to claim 2, characterized in that: The impermeable layer (41) is disposed on the top of the core paper (1), and the material of the impermeable layer (41) is a water-based acrylic resin coating.

6. The anti-permeability writing notebook refill according to claim 1, characterized in that: The multiple binding holes (2) are circular through holes, and the multiple binding holes (2) are evenly distributed on the side of the core paper (1) near the card block (36).

7. The anti-permeability writing notebook refill according to claim 1, characterized in that: The convex ring (37) is a circular ring, and the convex ring (37) is used to precisely guide the loose-leaf ring through the multiple binding holes (2).

8. The anti-permeability writing notebook refill according to claim 1, characterized in that: The elastic band (33) is disposed on the side of the core paper (1) away from the card block (36) to prevent the core paper (1) from falling off.

Images