A production system for a multi-layer embossed industrial wiping paper

Abstract

The utility model relates to a kind of production system of multilayer embossed industrial wiping paper, comprising: long fiber stock preparation unit, it includes the long fiber pulper, long fiber pre-pulping pool and refiner connected in sequence;Short fiber stock preparation unit, it includes the short fiber pulper, short fiber pre-pulping pool and defibrator connected in sequence;Mixing unit, it includes the slurry mixing tank, uniform grinder and pulp pool connected in sequence;Papermaking unit, it includes the paper machine connected with pulp pool;Rewinding slitting unit, it includes rewinding slitting machine;Gluing embossing unit, it includes gluing assembly and several groups of embossing assembly.Compared with prior art, the production system of the utility model integrates stock preparation, mixing, papermaking, rewinding slitting, gluing embossing and other processes, and finally produces multilayer embossed industrial wiping paper with excellent performance.

Description

Technical Field

[0001] This utility model relates to the field of papermaking technology, and in particular to a production system for multi-layer embossed industrial wiping paper. Background Technology

[0002] In current industrial settings such as machinery manufacturing, equipment maintenance, and precision instrument processing, traditional wiping needs are generally met using wiping cloths made from bundled textile scraps. However, wiping cloths have a loose structure and large volume, making them unsuitable for operations in confined spaces. Secondly, wiping cloths have low oil absorption and low wiping efficiency, often requiring repeated use. Furthermore, most wiping cloths in modern industry are made from non-degradable materials such as synthetic fibers, which not only increases environmental treatment costs but also causes long-term pollution to soil and water sources after subsequent disposal.

[0003] To address the above problems, industrial wiping paper has emerged. However, existing industrial wiping paper is easily torn or shredded when used to wipe instruments due to its low strength and toughness. To address this, CN111893801A discloses a high-absorbency negative ion dry-process industrial wiping paper base paper and process. This method involves adding metal fibers and adhesives to the pulp, followed by high-temperature cooking and drying, combined with a negative ion dry process to improve the paper's strength and toughness. However, this industrial wiping paper production system involves metal fibers, adhesives, and other non-degradable chemical products, requiring corresponding pipelines and equipment, which cannot meet the demands of green and environmentally friendly production. Furthermore, the performance of the resulting industrial wiping paper still needs improvement.

[0004] Therefore, in order to develop a new type of green, environmentally friendly, and high-performance industrial wiping paper, it is necessary to develop a supporting new production process system. Utility Model Content

[0005] The purpose of this invention is to provide a production system for multi-layer embossed industrial wiping paper that produces green, environmentally friendly, and high-performance industrial wiping paper.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] This utility model provides a production system for multi-layer embossed industrial wiping paper, including:

[0008] The long fiber pulp preparation unit includes a long fiber pulper, a long fiber pre-pulping tank, and a refiner connected in sequence.

[0009] The short fiber pulp preparation unit includes a short fiber pulper, a short fiber pre-pulping tank, and a descaling machine connected in sequence.

[0010] The mixing unit includes a pulp mixing tank, a leveling mill, and a pulp forming tank connected in sequence. The outlet sides of both the long fiber pulp preparation unit and the short fiber pulp preparation unit are connected to the pulp mixing tank.

[0011] The papermaking unit includes a paper machine connected to a pulp tank for forming the pulp in the pulp tank;

[0012] The rewinding and slitting unit includes a rewinding and slitting machine for rewinding and slitting the industrial wiping paper base paper produced by the papermaking unit;

[0013] The gluing and embossing unit includes a gluing component and several embossing components, which are used to emboss the single-layer industrial wiping paper base paper in the rewinding and slitting unit to obtain multi-layer embossed industrial wiping paper.

[0014] Furthermore, the outlet side of the refiner is connected to the long fiber pulp tank after tapping, and the outlet side of the desoldering machine is connected to the short fiber pulp tank after tapping.

[0015] Furthermore, the outlet sides of both the long fiber knockdown pulp tank and the short fiber knockdown pulp tank are connected to the pulp mixing tank via pipelines.

[0016] Furthermore, a first switching valve is provided between the outlet side of the long fiber pulp tank and the pulp mixing tank.

[0017] Furthermore, a second switching valve is provided between the outlet side of the short fiber pulp tank and the pulp mixing tank.

[0018] Furthermore, a slurry pump is provided between the slurry forming tank and the papermaking unit.

[0019] Furthermore, the paper machine includes a pressing section, a drying section, and a creping section.

[0020] Furthermore, the gluing assembly includes a glue delivery roller and an anilox roller, and the glue is applied to the surface of the industrial wiping paper base paper after passing through the glue delivery roller and the anilox roller in sequence.

[0021] Furthermore, the embossing assembly includes several sets of mutually matched embossing steel rollers and embossing rubber rollers, with the industrial wiping paper base paper passing between the embossing steel rollers and the embossing rubber rollers.

[0022] Furthermore, the embossing assembly includes 2-3 sets of mutually matched embossing steel rollers and embossing rubber rollers, and the adhesive application assembly is used in conjunction with any one of the embossing steel rollers for adhesive application.

[0023] Furthermore, the embossing unit also includes a composite roller for bonding the multiple layers of embossed industrial wiping paper base paper together.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The multi-layer embossed industrial wiping paper production system of this utility model prepares long fiber pulp and short fiber pulp through a long fiber pulp preparation unit and a short fiber pulp preparation unit, respectively. After being mixed in a mixing unit, the industrial wiping paper base paper is produced in a papermaking unit. After being rewound and slit in a rewinding and slitting unit, the industrial wiping paper base paper is fed into a gluing and embossing unit for embossing treatment, and finally, high-performance multi-layer embossed industrial wiping paper can be obtained, which can meet the needs of various industrial wiping scenarios.

[0026] (2) The multi-layer embossed industrial wiping paper production system of this utility model makes the paper fluffier and has better water and oil absorption by setting the embossing component; by setting the gluing component, the multi-layer paper is tightly bonded and can lock the embossing guide groove to ensure that the liquid is not easily flowed after absorption, which further improves the water absorption performance of the industrial wiping paper.

[0027] (3) The multi-layer embossed industrial wiping paper production system of this utility model does not require the introduction of production units that are not easily degradable, such as chemical fibers and metal fibers, which is more in line with the requirements of green and environmentally friendly production. Attached Figure Description

[0028] Figure 1 This is a flowchart illustrating the specific production system of this utility model.

[0029] Figure 2 This is a structural diagram of the embossing unit in Embodiment 4 of this utility model.

[0030] Explanation of markings in the diagram:

[0031] 10-Long fiber pulp preparation unit, 11-Long fiber pulper, 12-Long fiber pre-refining pulp tank, 13-Refiner, 14-Long fiber post-refining pulp tank, 15-First switch valve;

[0032] 20-Short fiber pulp preparation unit, 21-Short fiber pulper, 22-Short fiber pre-pulping tank, 23-Desolventizer, 24-Short fiber post-pulping tank, 25-Second switch valve;

[0033] 30-Mixing unit, 31-Pulp mixing tank, 32-Grinding mill, 33-Pulp forming tank, 34-Pulp pump;

[0034] 40 - Papermaking unit; 41 - Paper machine;

[0035] 50 - Rewinding and slitting unit; 51 - Rewinding and slitting machine;

[0036] 60 - Glue application and embossing unit, 61 - Glue application assembly, 611 - Glue delivery roller, 612 - Anilox roller, 62 - Embossing assembly, 621 - Embossing steel roller, 622 - Embossing rubber roller, 63 - Composite rubber roller. Detailed Implementation

[0037] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0038] In this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and 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 of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0039] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0040] Example 1:

[0041] This embodiment provides a production system for multi-layer embossed industrial wiping paper, such as... Figure 1 As shown, it specifically includes a long fiber sizing unit 10, a short fiber sizing unit 20, a mixing unit 30, a papermaking unit 40, a rewinding and slitting unit 50, and an adhesive embossing unit 60.

[0042] The long fiber pulp preparation unit 10 of this embodiment includes a long fiber pulper 11, a long fiber pre-pulping tank 12, and a refiner 13 connected in sequence, for preparing long fiber pulp. The short fiber pulp preparation unit 20 includes a short fiber pulper 21, a short fiber pre-pulping tank 22, and a descaling machine 23 connected in sequence, for preparing short fiber pulp.

[0043] The mixing unit 30 in this embodiment includes a mixing tank 31, a leveling mill 32 and a pulping tank 33 connected in sequence. The outlet sides of the long fiber pulping unit 10 and the short fiber pulping unit 20 are both connected to the mixing tank 31.

[0044] The papermaking unit 40 in this embodiment includes a paper machine 41 connected to the pulp tank 33, which is used to form the pulp in the pulp tank 33 to obtain industrial wiping paper base paper.

[0045] The rewinding and slitting unit 50 of this embodiment includes a rewinding and slitting machine 51, which is used to rewind and slit the industrial wiping paper base paper produced by the papermaking unit 40.

[0046] The gluing and embossing unit 60 in this embodiment includes a gluing component 61 and several sets of embossing components 62, which are used to emboss the single-layer industrial wiping paper base paper in the rewinding and slitting unit 50 to obtain multi-layer embossed industrial wiping paper.

[0047] In this embodiment, the multi-layer embossed industrial wiping paper is prepared by long fiber pulp preparation unit 10 and short fiber pulp preparation unit 20, respectively. After being mixed in mixing unit 30, the industrial wiping paper base paper is produced in papermaking unit 40. After being rewound and slit in rewinding and slitting unit 50, the industrial wiping paper base paper is fed into sizing and embossing unit 60 for embossing treatment, and finally, multi-layer embossed industrial wiping paper is produced.

[0048] Example 2:

[0049] This embodiment provides a production system for multi-layer embossed industrial wiping paper, specifically including a long fiber pulp preparation unit 10, a short fiber pulp preparation unit 20, a mixing unit 30, a papermaking unit 40, a rewinding and slitting unit 50, and an adhesive embossing unit 60.

[0050] The difference from Example 1 is that in this example, the outlet side of the refiner 13 is connected to the long fiber pulp tank 14, the outlet side of the desoldering machine 23 is connected to the short fiber pulp tank 24, and the outlet sides of both the long fiber pulp tank 14 and the short fiber pulp tank 24 are connected to the mixing tank 31 through pipelines.

[0051] In order to control the reasonable ratio of long fiber slurry and short fiber slurry, a first switching valve 15 is provided between the outlet side of the long fiber post-slurry tank 14 and the mixing tank 31, and a second switching valve 25 is provided between the outlet side of the short fiber post-slurry tank 24 and the mixing tank 31. The amount of long fiber slurry and short fiber slurry introduced into the mixing tank 31 by the first switching valve 15 and the second switching valve 25 can be controlled.

[0052] Example 3:

[0053] This embodiment provides a production system for multi-layer embossed industrial wiping paper, specifically including a long fiber pulp preparation unit 10, a short fiber pulp preparation unit 20, a mixing unit 30, a papermaking unit 40, a rewinding and slitting unit 50, and an adhesive embossing unit 60.

[0054] The difference from Embodiment 1 is that in this embodiment, a slurry pump 34 is provided between the pulping tank 33 and the papermaking unit 40, which is used to dilute the mixed pulp after mixing and homogenization in the pulping tank 33 and then input it into the papermaking machine 41 of the papermaking unit 40.

[0055] The paper machine 41 in this embodiment includes a pressing section, a drying section and a creping section, which can form, press, dry and crepe paper to obtain industrial wiping paper base paper with excellent performance.

[0056] Example 4:

[0057] This embodiment provides a production system for multi-layer embossed industrial wiping paper, specifically including a long fiber pulp preparation unit 10, a short fiber pulp preparation unit 20, a mixing unit 30, a papermaking unit 40, a rewinding and slitting unit 50, and an adhesive embossing unit 60.

[0058] The difference from Example 1 is that, as Figure 2 As shown, the gluing assembly 61 in this embodiment includes a glue delivery roller 611 and an anilox roller 612. The glue is applied to the surface of the industrial wiping paper base paper after passing through the glue delivery roller 611 and the anilox roller 612 in sequence.

[0059] The embossing assembly 62 in this embodiment includes 2-3 sets of mutually matched embossing steel rollers 621 and embossing rubber rollers 622, and the industrial wiping paper base paper passes between the embossing steel rollers 621 and the embossing rubber rollers 622. Figure 2 The image only shows the gluing and embossing unit 60 for double-layer embossed industrial wiping paper. The gluing component 61 is used in conjunction with any one of the embossing steel rollers 621 for gluing. When producing triple-layer embossed industrial wiping paper, the gluing component 61 is used in conjunction with the embossing steel roller 621 corresponding to the outer layer of wiping paper for gluing.

[0060] The gluing and embossing unit 60 in this embodiment also includes a composite roller 63, which is used to bond the multi-layer embossed industrial wiping paper base paper together.

[0061] Example 5:

[0062] This embodiment provides a production system for multi-layer embossed industrial wiping paper, specifically including a long fiber pulp preparation unit 10, a short fiber pulp preparation unit 20, a mixing unit 30, a papermaking unit 40, a rewinding and slitting unit 50, and an adhesive embossing unit 60.

[0063] The long fiber pulp preparation unit 10 in this embodiment includes a long fiber pulper 11, a long fiber pre-tapping pulp tank 12, and a refiner 13 connected in sequence, for preparing long fiber pulp. The short fiber pulp preparation unit 20 includes a short fiber pulper 21, a short fiber pre-tapping pulp tank 22, and a de-tapping machine 23 connected in sequence, for preparing short fiber pulp. The outlet side of the refiner 13 is connected to the long fiber post-tapping pulp tank 14, and the outlet side of the de-tapping machine 23 is connected to the short fiber post-tapping pulp tank 24. The outlet sides of both the long fiber post-tapping pulp tank 14 and the short fiber post-tapping pulp tank 24 are connected to the mixing tank 31 via pipelines. In order to regulate the reasonable ratio of long fiber slurry and short fiber slurry, a first switching valve 15 is provided between the outlet side of the long fiber post-slurry tank 14 and the mixing tank 31, and a second switching valve 25 is provided between the outlet side of the short fiber post-slurry tank 24 and the mixing tank 31. The amount of long fiber slurry and short fiber slurry introduced into the mixing tank 31 by the first switching valve 15 and the second switching valve 25 can be controlled.

[0064] The mixing unit 30 in this embodiment includes a mixing tank 31, a leveling mill 32 and a pulping tank 33 connected in sequence. The outlet sides of the long fiber pulping unit 10 and the short fiber pulping unit 20 are both connected to the mixing tank 31.

[0065] The papermaking unit 40 in this embodiment includes a paper machine 41 connected to a pulp tank 33, used to form the pulp in the pulp tank 33 to obtain industrial wiping paper base paper. A slurry pump 34 is provided between the pulp tank 33 and the papermaking unit 40, used to dilute the mixed pulp after mixing and leveling in the pulp tank 33 and then input it into the papermaking machine 41 of the papermaking unit 40. The papermaking machine 41 includes a press section, a drying section and a creping section, which can form, press, dry and crepe the paper to obtain industrial wiping paper base paper with excellent performance.

[0066] The rewinding and slitting unit 50 of this embodiment includes a rewinding and slitting machine 51, which is used to rewind and slit the industrial wiping paper base paper produced by the papermaking unit 40.

[0067] The gluing and embossing unit 60 in this embodiment includes a gluing component 61 and several sets of embossing components 62, which are used to emboss the single-layer industrial wiping paper base paper in the rewinding and slitting unit 50 to obtain multi-layer embossed industrial wiping paper.

[0068] In this embodiment, the multi-layer embossed industrial wiping paper is prepared by long-fiber pulp preparation unit 10 and short-fiber pulp preparation unit 20, respectively. After mixing in mixing unit 30, the industrial wiping paper base paper is produced in papermaking unit 40. The gluing assembly 61 includes a glue feeding roller 611 and an anilox roller 612. Glue is applied to the surface of the industrial wiping paper base paper after passing through the glue feeding roller 611 and an anilox roller 612 in sequence. The embossing assembly 62 includes 2-3 sets of mutually matched embossing steel rollers 621 and embossing glue rollers 622. The industrial wiping paper base paper passes between the embossing steel rollers 621 and the embossing glue rollers 622. The gluing assembly 61 cooperates with any one of the sets of embossing steel rollers 621 for gluing. The gluing and embossing unit 60 also includes a composite glue roller 63 for bonding the multi-layer embossed industrial wiping paper base paper together.

[0069] Taking double-layer embossed industrial wiping paper as an example, the specific process for producing multi-layer embossed industrial wiping paper using the production system of this embodiment is as follows:

[0070] (1) Softwood pulp and hardwood pulp are fed into long fiber pulper 11, diluted with white water to a concentration of about 5wt%, and then pulped. After that, they are pumped into long fiber pre-refining tank 12. The pulp in long fiber pre-refining tank 12 is diluted with water and then passed through refiner 13. The refiner power is controlled at about 250kw. The fibers are cut and separated into fibers and then pumped into long fiber post-refining tank 14.

[0071] (2) The hardwood pulp is put into the short fiber pulper 21, diluted with white water to a concentration of about 5 wt%, and then crushed. It is then pumped into the short fiber pre-pulping tank 22. The pulp in the short fiber pre-pulping tank 22 is diluted with water and then passed through the de-splitting machine 23. After being de-splitting by the de-splitting machine 23, it is pumped into the short fiber post-pulping tank 24.

[0072] (3) Pump the slurry in the long fiber knocking post slurry tank 14 and the slurry in the short fiber knocking post slurry tank 24 into the slurry mixing tank 31 at a ratio of about 3:1.

[0073] (4) After diluting the slurry in the mixing tank 31 with water, the slurry is passed through the leveling mill 32 with a grinding power of about 140kw to further refine the fibers before being pumped into the pulping tank 33.

[0074] (5) The pulp in the pulping tank 33 is diluted by the pulp pump 34 and then wet strength agent is added. It is then pumped into the crescent paper machine for forming, pressing and drying. The linear pressure of the press dewatering idler roll is about 100kN / cm, the air inlet pressure of the drying cylinder is about 7bar, and the air inlet temperature at the dry end of the air hood is 140℃.

[0075] (6) After being dried by the drying cylinder and the air hood, the paper is wrinkled by the crease knife with a wrinkling rate of about 20%. The paper is then rolled into a first roll of raw paper by the paper roll cylinder and sent to the rewinding and slitting machine 51 for rewinding and slitting into wiping paper raw paper.

[0076] (7) Two sets of wiping paper base papers are passed through the corresponding embossing steel 621 and embossing rubber roller 622 for embossing. Glue is evenly applied to one side of the wiping paper base paper through the glue feeding roller 611 and the anilox roller 612. Finally, the two embossed industrial wiping paper base papers are laminated together by the composite rubber roller 63. The production speed of the glue-applying embossing unit 60 is approximately 100 m / min, the embossing pressure is approximately 4 bar, and the glue application amount is approximately 12 kg / ton of paper.

[0077] This invention, through a rational process ratio of coniferous and broadleaf wood and the synergistic combination of embossing and gluing processes, produces double-layered embossed industrial wiping paper that combines excellent mechanical and absorbency properties. The embossing process makes the paper more fluffy, improving its water and oil absorption. The gluing process tightly bonds the two layers of paper and locks the embossed drainage channels, preventing liquid from flowing away after absorption and further enhancing the absorbency of the industrial wiping paper. The multi-layered embossed industrial wiping paper produced by the above production system has a thickness of approximately 2.4-2.5 mm after embossing, with a longitudinal tensile strength >5000mN, a transverse tensile strength >2400mN, and a longitudinal wet tensile strength >1000mN. All properties are significantly improved, meeting the requirements of various industrial wiping scenarios.

[0078] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A production system for multi-layer embossed industrial wiping paper, characterized in that, include: The long fiber pulp preparation unit (10) includes a long fiber pulper (11), a long fiber pre-pulping tank (12), and a refiner (13) connected in sequence. The short fiber pulp preparation unit (20) includes a short fiber pulper (21), a short fiber pre-pulping tank (22), and a descaling machine (23) connected in sequence; The mixing unit (30) includes a mixing tank (31), a leveling mill (32) and a pulping tank (33) connected in sequence. The outlet sides of the long fiber pulping unit (10) and the short fiber pulping unit (20) are both connected to the mixing tank (31). The papermaking unit (40) includes a paper machine (41) connected to a pulp tank (33) for forming the pulp in the pulp tank (33); The rewinding and slitting unit (50) includes a rewinding and slitting machine (51) for rewinding and slitting the industrial wiping paper base paper produced by the papermaking unit (40); The gluing and embossing unit (60) includes a gluing component (61) and several embossing components (62) for embossing the single-layer industrial wiping paper base paper in the rewinding and slitting unit (50) to obtain multi-layer embossed industrial wiping paper.

2. The production system for multi-layer embossed industrial wiping paper according to claim 1, characterized in that, The outlet side of the refiner (13) is connected to the long fiber tapping pulp tank (14), and the outlet side of the descrambling machine (23) is connected to the short fiber tapping pulp tank (24).

3. The production system for multi-layer embossed industrial wiping paper according to claim 2, characterized in that, The outlet sides of both the long fiber knockdown post-pulping tank (14) and the short fiber knockdown post-pulping tank (24) are connected to the mixing tank (31) via pipelines.

4. The production system for multi-layer embossed industrial wiping paper according to claim 3, characterized in that, A first switching valve (15) is provided between the outlet side of the long fiber pulp tank (14) and the pulp mixing tank (31); A second switching valve (25) is provided between the outlet side of the short fiber tapping pulp tank (24) and the pulp mixing tank (31).

5. The production system for multi-layer embossed industrial wiping paper according to claim 1, characterized in that, A slurry pump (34) is provided between the slurry tank (33) and the papermaking unit (40).

6. The production system for multi-layer embossed industrial wiping paper according to claim 1, characterized in that, The paper machine (41) includes a pressing section, a drying section and a creping section.

7. The production system for multi-layer embossed industrial wiping paper according to claim 1, characterized in that, The gluing assembly (61) includes a glue delivery roller (611) and an anilox roller (612). The glue is applied to the surface of the industrial wiping paper base paper after passing through the glue delivery roller (611) and the anilox roller (612) in sequence.

8. The production system for multi-layer embossed industrial wiping paper according to claim 1, characterized in that, The embossing assembly (62) includes several sets of mutually matched embossing steel rollers (621) and embossing rubber rollers (622), and the industrial wiping paper base paper passes between the embossing steel rollers (621) and the embossing rubber rollers (622).

9. A production system for multi-layer embossed industrial wiping paper according to claim 8, characterized in that, The embossing component (62) includes 2-3 sets of matching embossing steel rollers (621) and embossing rubber rollers (622), and the gluing component (61) is used in conjunction with any one of the embossing steel rollers (621) for gluing.

10. The production system for multi-layer embossed industrial wiping paper according to claim 1, characterized in that, The embossing unit (60) also includes a composite roller (63) for bonding the multi-layer embossed industrial wiping paper base paper together.

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