Printing paper with good ink absorption effect
Through multi-layer structural design and fiber material combination, the problems of poor ink absorption and insufficient durability of printing paper have been solved, resulting in printing paper that is highly absorbent, tear-resistant, wear-resistant and waterproof.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-03
AI Technical Summary
Existing printing paper has poor ink absorption, is prone to smudging or blurring, lacks tear resistance and water resistance, and is not resistant to corrosion.
It adopts a multi-layer structure design, including a wood pulp layer, an ink-absorbing layer and a waterproof layer. It utilizes a combination of different fiber materials to form a porous network structure, which enhances the paper's ink absorption, tear resistance, abrasion resistance and waterproof performance.
This printing paper achieves high ink absorption, tear resistance, abrasion resistance, high whiteness, stable color, and good water resistance, making it suitable for various writing and printing needs.
Smart Images
Figure CN224077866U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of printing paper technology, and in particular relates to a printing paper with good ink absorption effect. Background Technology
[0002] Printing paper is the primary material used for printing books, magazines, newspapers, and other publications. It clearly displays text and images, making it easy for readers to read and preserve. For example, dictionaries, novels, and academic journals are all printed on printing paper. It can also be used to create flyers, posters, brochures, and other advertising materials to attract attention and promote products, services, or events. Examples include promotional flyers for shopping malls and concert posters.
[0003] Conventional printing paper is made from a single material, resulting in poor ink absorption. This leads to smudging or blurring during printing, poor tear resistance, and a lack of corrosion resistance, making it difficult to preserve. Furthermore, ordinary printing paper is prone to blurring and damage when exposed to water. Therefore, we propose a printing paper with superior ink absorption. Utility Model Content
[0004] The purpose of this invention is to provide a printing paper with good ink absorption to solve the problems mentioned in the background art.
[0005] In view of this, the present invention provides a printing paper with good ink absorption, comprising:
[0006] The wood pulp layer has two indentations on its top, one ink-absorbing layer and one ink-absorbing layer on its bottom. The bottom of the first ink-absorbing layer has one ink-absorbing layer, the bottom of the second ink-absorbing layer has one ink-absorbing coating layer, the bottom of the first ink-absorbing coating layer has one ink-absorbing coating layer, the bottom of the second ink-absorbing coating layer has one ink-absorbing coating layer, the bottom of the second ink-absorbing coating layer has one ink-absorbing coating layer, and the bottom of the third ink-absorbing coating layer has a waterproof layer.
[0007] In this technical solution, when using the original size printing paper, the user can use it directly. When a smaller size printing paper is needed, the user can tear the printing paper along the first and second indentations to make it smaller for use. This ensures that the first and second indentations act as guides, preventing deviation during manual tearing and ensuring that no tools are needed when tearing the printing paper, making it quite convenient.
[0008] In the above technical solution, the wood pulp layer is made of wood pulp fiber material, and the first and second indentations are arranged in a cross pattern.
[0009] In this technical solution, there are abundant micropores and gaps inside and between wood pulp fibers, forming a porous network structure similar to a sponge. This structure can quickly absorb ink, allowing the ink to quickly penetrate into the inside of the fibers or the gaps between the fibers, reducing the residence time of the ink on the paper surface and avoiding smudging or blurring caused by ink diffusion.
[0010] In the above technical solution, the ink-absorbing layer is further made of cotton fiber material.
[0011] In this technical solution, the cotton fiber length can reach 1-4 cm, which is much longer than wood pulp fiber. The fibers are tightly interwoven and have strong bonding force, which gives the paper high tear resistance, folding resistance and abrasion resistance. The surface of cotton fiber is porous and highly hydrophilic, which can quickly absorb water-based ink. At the same time, the fiber structure is compact, which can control the ink penetration depth and avoid smudging. It is suitable for fountain pen and brush writing and fine printing.
[0012] In the above technical solution, the second ink-absorbing layer is made of bamboo fiber.
[0013] In this technical solution, the bamboo fiber has a cellulose content of 60%-70%, with fewer impurities such as lignin and hemicellulose. This results in lower chemical consumption during pulping, a simpler bleaching process, and finished paper with high whiteness and stable color.
[0014] In the above technical solution, the ink-absorbing coating is further made of polyacrylonitrile fiber.
[0015] In this technical solution, when polyacrylonitrile fibers are mixed with natural fibers such as wood pulp, a "network reinforcement structure" can be formed, which significantly improves the bursting strength and tensile strength of the paper.
[0016] In the above technical solution, the second ink-absorbing coating is made of polyester fiber.
[0017] In this technical solution, the ester groups in the polyester molecule structure have good resistance to dilute acids, alkalis and most organic solvents, resulting in paper with higher corrosion resistance.
[0018] In the above technical solution, the ink-absorbing coating three is made of cellulose acetate material.
[0019] In this technical solution, cellulose acetate retains the molecular skeleton of cellulose, the fiber surface is smooth and delicate, the texture is soft, and the paper made from it has a warm and smooth feel, similar to high-grade cotton paper or silk. The fiber has a low elastic modulus, and the paper can withstand thousands of folds without becoming brittle, and the creases are not obvious.
[0020] In the above technical solution, the waterproof layer is further made of polyurethane.
[0021] In this technical solution, the polyurethane (PU) coating has high density, which can block the penetration of water molecules and organic solvents, thus making waterproof printing paper and enhancing the waterproofness of the printing paper.
[0022] The beneficial effects of this utility model are:
[0023] This printing paper with excellent ink absorption, through the combination of a wood pulp layer, indentation layer one, indentation layer two, ink absorption layer one, ink absorption layer two, ink absorption coating layer one, ink absorption coating layer two, ink absorption coating layer three, and a waterproof layer, ensures that the finished printing paper has the advantages of excellent ink absorption, strong tear resistance, strong abrasion resistance, high whiteness, stable color, good corrosion resistance, and good waterproof effect. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0025] Figure 2 This is a side view of the overall structure of this utility model;
[0026] Figure 3 This is a schematic diagram of the overall explosion structure of this utility model.
[0027] The markings in the diagram are as follows:
[0028] 1. Wood pulp layer; 2. Indentation 1; 3. Indentation 2; 4. Ink-absorbing layer 1; 5. Ink-absorbing layer 2; 6. Ink-absorbing coating 1; 7. Ink-absorbing coating 2; 8. Ink-absorbing coating 3; 9. Waterproof layer. Detailed Implementation
[0029] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0030] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0031] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0032] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0033] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0034] Example 1:
[0035] Please see Figure 1 - Figure 3 As shown, this embodiment provides a printing paper with good ink absorption, comprising:
[0036] Wood pulp layer 1, the top of wood pulp layer 1 is provided with indentation 1 2 and indentation 2 3, the bottom of wood pulp layer 1 is provided with ink-absorbing layer 1 4, the bottom of ink-absorbing layer 1 4 is provided with ink-absorbing layer 2 5, the bottom of ink-absorbing layer 2 5 is provided with ink-absorbing coating 1 6, the bottom of ink-absorbing coating 1 6 is provided with ink-absorbing coating 2 7, the bottom of ink-absorbing coating 2 7 is provided with ink-absorbing coating 3 8, and the bottom of ink-absorbing coating 3 8 is provided with waterproof layer 9.
[0037] When using the paper, if the user needs to use the original size printing paper, they can use it directly. If they need to use a smaller size printing paper, they can tear the paper along the grooves 1-2 and 2-3 to make it smaller. This ensures that the grooves 1-2 and 2-3 act as guides to prevent the paper from shifting when torn by hand, and makes it convenient to tear the paper without the need for tools.
[0038] Example 2:
[0039] This embodiment provides a printing paper with good ink absorption. In addition to the technical solutions of the above embodiments, it also has the following technical features: the wood pulp layer 1 is made of wood pulp fiber material, and the first indentation 2 and the second indentation 3 are arranged in a cross pattern.
[0040] The wood pulp fibers contain abundant micropores and gaps, forming a porous network structure similar to a sponge. This structure can quickly absorb ink, allowing the ink to penetrate rapidly into the fiber interior or fiber gaps, reducing the ink's residence time on the paper surface and avoiding smudging or blurring caused by ink diffusion.
[0041] Example 3:
[0042] This embodiment provides a printing paper with good ink absorption. In addition to the technical solutions of the above embodiments, it also has the following technical features: the ink absorption layer 4 is made of cotton fiber.
[0043] Cotton fibers can reach 1-4 cm in length, much longer than wood pulp fibers. The fibers are tightly interwoven and have strong bonding, giving the paper high tear resistance, folding resistance, and abrasion resistance. The surface of cotton fibers is porous and highly hydrophilic, which can quickly absorb water-based inks. At the same time, the dense fiber structure can control the depth of ink penetration and avoid smudging, making it suitable for fountain pen and brush writing and fine printing.
[0044] Example 4:
[0045] This embodiment provides a printing paper with good ink absorption. In addition to the technical solutions of the above embodiments, it also has the following technical features: the ink absorption layer 5 is made of bamboo fiber.
[0046] Bamboo fiber contains 60%-70% cellulose and has fewer impurities such as lignin and hemicellulose. This results in lower chemical consumption during pulping, a simpler bleaching process, and finished paper with high whiteness and stable color.
[0047] Example 5:
[0048] This embodiment provides a printing paper with good ink absorption effect. In addition to the technical solutions of the above embodiments, it also has the following technical features: the ink absorption coating 6 is made of polyacrylonitrile fiber material.
[0049] When polyacrylonitrile fibers are mixed with natural fibers such as wood pulp, they can form a "network reinforcement structure," which significantly improves the paper's burst strength and tensile strength.
[0050] Example 6:
[0051] This embodiment provides a printing paper with good ink absorption effect. In addition to the technical solutions of the above embodiments, it also has the following technical features: the ink absorption coating 7 is made of polyester fiber.
[0052] Among them, the ester groups in the polyester molecule have good resistance to dilute acids, alkalis and most organic solvents, and the paper made from them has higher corrosion resistance.
[0053] Example 7:
[0054] This embodiment provides a printing paper with good ink absorption effect. In addition to the technical solutions of the above embodiments, it also has the following technical features: the ink absorption coating 38 is made of cellulose acetate material.
[0055] Among them, cellulose acetate retains the molecular skeleton of cellulose, the fiber surface is smooth and delicate, the texture is soft, and the paper made from it has a warm feel, similar to high-grade cotton paper or silk. The fiber has a low elastic modulus, and the paper can withstand thousands of folds without becoming brittle, and the creases are not obvious.
[0056] Example 8:
[0057] This embodiment provides a printing paper with good ink absorption. In addition to the technical solutions of the above embodiments, it also has the following technical features: the waterproof layer 9 is made of polyurethane.
[0058] Among them, the high density of the polyurethane (PU) coating can block the penetration of water molecules and organic solvents, making it into waterproof printing paper and enhancing the waterproofness of the printing paper.
[0059] Working principle: When using the paper, if the user needs to use the original size printing paper, it can be used directly. If a smaller size printing paper is needed, the user can tear the paper along the grooves 1-2 and 2-3 to make it smaller. The grooves 1-2 and 2-3 act as guides to prevent the paper from shifting when torn by hand. This ensures that no tools are needed when tearing the printing paper, making it convenient.
[0060] When printing paper is used, the wood pulp layer 1, made of wood pulp fiber, has abundant micropores and gaps within and between the fibers, forming a porous network structure similar to a sponge. This structure can quickly absorb ink, allowing the ink to rapidly penetrate into the interior or gaps of the fibers, reducing the ink's residence time on the paper surface and preventing smudging or blurring caused by ink diffusion. The ink-absorbing layer 4, made of cotton fiber, has fibers that are 1-4 cm long, much longer than wood pulp fibers. The fibers are tightly interwoven and have strong bonding, giving the paper high tear resistance, folding resistance, and abrasion resistance. The porous and highly hydrophilic surface of cotton fibers allows for rapid absorption of water-based inks. Simultaneously, the dense fiber structure controls the ink penetration depth, preventing smudging, making it suitable for fountain pen and brush writing and fine printing. The ink-absorbing layer 5, made of bamboo fiber, has a cellulose content of 60%-70% and fewer impurities such as lignin and hemicellulose. During pulping, the chemical... The process involves low chemical consumption, a simpler bleaching process, and produces paper with high whiteness and stable color. The first ink-absorbing coating (6) uses polyacrylonitrile fiber, which, when mixed with natural fibers such as wood pulp, forms a "network reinforcement structure," significantly improving the paper's burst strength and tensile strength. The second ink-absorbing coating (7) uses polyester fiber; the ester groups in the polyester molecule have good resistance to dilute acids, alkalis, and most organic solvents, resulting in paper with higher corrosion resistance. The third ink-absorbing coating (8) uses cellulose acetate; cellulose acetate retains the molecular skeleton of cellulose, resulting in a smooth and delicate fiber surface and soft texture, producing paper with a warm feel, similar to high-grade cotton paper or silk. The fiber has a low elastic modulus, allowing the paper to withstand thousands of folds without cracking, and the creases are not obvious. The waterproof layer (9) uses polyurethane; the high density of the polyurethane (PU) coating prevents water molecules and organic solvents from penetrating, creating waterproof printing paper and enhancing its waterproof properties.
[0061] Printing paper made from the above materials has the advantages of good ink absorption, strong tear resistance, strong abrasion resistance, high whiteness, stable color, good corrosion resistance, and good waterproof effect.
[0062] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A printing paper with good ink absorption, characterized in that, include: Wood pulp layer (1), the top of the wood pulp layer (1) is provided with indentation one (2) and indentation two (3), the bottom of the wood pulp layer (1) is provided with ink-absorbing layer one (4), the bottom of the ink-absorbing layer one (4) is provided with ink-absorbing layer two (5), the bottom of the ink-absorbing layer two (5) is provided with ink-absorbing coating one (6), the bottom of the ink-absorbing coating one (6) is provided with ink-absorbing coating two (7), the bottom of the ink-absorbing coating two (7) is provided with ink-absorbing coating three (8), and the bottom of the ink-absorbing coating three (8) is provided with waterproof layer (9).
2. The printing paper with good ink absorption effect according to claim 1, characterized in that, The wood pulp layer (1) is made of wood pulp fiber material, and the first indentation (2) and the second indentation (3) are arranged in a cross pattern.
3. The printing paper with good ink absorption effect according to claim 1, characterized in that, The ink-absorbing layer (4) is made of cotton fiber.
4. The printing paper with good ink absorption effect according to claim 1, characterized in that, The second ink-absorbing layer (5) is made of bamboo fiber.
5. The printing paper with good ink absorption effect according to claim 1, characterized in that, The ink-absorbing coating (6) is made of polyacrylonitrile fiber.
6. The printing paper with good ink absorption effect according to claim 1, characterized in that, The ink-absorbing coating 2 (7) is made of polyester fiber.
7. The printing paper with good ink absorption effect according to claim 1, characterized in that, The ink-absorbing coating three (8) is made of cellulose acetate.
8. The printing paper with good ink absorption effect according to claim 1, characterized in that, The waterproof layer (9) is made of polyurethane.