A honeycomb paper that can prevent tensile fracture and a method for manufacturing the same

By using a mixed pulp of sulfate softwood pulp and sulfate bamboo pulp combined with bamboo powder, and impregnating it with chitosan methacrylate and treating it with tensile adhesive, the problem of breakage of honeycomb paper under tension was solved, and high tensile strength honeycomb paper was prepared.

CN119704782BActive Publication Date: 2025-11-04GUANGDONG CHAOLUN NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202510029615.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2025-11-04
Estimated Expiration
2045-01-08

AI Technical Summary

Technical Problem

Existing honeycomb paper is prone to breakage when stretched, has poor tensile strength, and affects user experience.

Method used

A honeycomb paper with high tensile strength was prepared by using a mixed pulp of sulfate softwood pulp and sulfate bamboo pulp combined with bamboo powder, impregnated with chitosan methacrylate and treated with tensile adhesive, combined with a specific slotting machine design.

Benefits of technology

It improves the structural strength and tensile properties of honeycomb paper, reduces breakage, and enhances product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses honeycomb paper capable of preventing tensile fracture and a preparation method thereof, and the preparation method comprises the following steps of papermaking, impregnation, tensile-resistant glue preparation, paper sizing, paper winding, and honeycomb hole opening, and the preparation method is simple and reasonable, the structural strength and tensile strength of the prepared honeycomb paper are high, the honeycomb paper is not prone to fracture, and the product quality is greatly improved. In addition, the application combines kraft softwood pulp and kraft bamboo pulp, and adds bamboo powder of Phyllostachys nidularis, so that the mechanical strength of the honeycomb paper is improved; the base paper is impregnated in a chitosan methacrylate impregnation solution, so that the tensile resistance of the honeycomb paper is improved; the tensile-resistant glue is added with rosin modified alkyd resin, oxidized starch, polyethylene oxide, titanium isopropylate triisostearate, carboxymethyl cellulose, acrylic emulsion, dry strength agent, lubricant and modified polyvinyl alcohol, so that the tensile strength of the honeycomb paper is increased, and the surface pore structure of the honeycomb paper is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of honeycomb paper, and more particularly to a honeycomb paper capable of preventing tensile fracture and a preparation method thereof. BACKGROUND

[0002] As shown in Figure 1 and Figure 2 , the existing honeycomb paper can be prepared by a honeycomb paper slotting machine. After being slotted, the positions of the adjacent two rows of hole positions are staggered with each other. When stretching is needed, the hole positions of the honeycomb paper can be expanded to form a honeycomb network structure. However, the existing honeycomb paper is prone to fracture during the process of stretching, has poor tensile strength, and affects the use of users. SUMMARY

[0003] The present application aims to overcome the above-mentioned defects in the prior art and provide a honeycomb paper capable of preventing tensile fracture and a preparation method thereof.

[0004] To achieve the above-mentioned purpose, the first aspect of the present application provides a preparation method of a honeycomb paper capable of preventing tensile fracture, comprising the following steps:

[0005] (1) Papermaking: mixing sulfate conifer pulp and sulfate bamboo pulp together to form first mixed pulp, then adding bamboo powder of sinohollianus and stirring uniformly to obtain second mixed pulp, then copying the second mixed pulp into a shape, and then dehydrating and drying to obtain raw paper;

[0006] (2) Immersion: immersing the raw paper in a chitosan methacrylate immersion liquid to obtain immersed paper;

[0007] (3) Preparation of tensile-resistant glue: putting rosin modified alkyd resin, oxidized starch, polyethylene oxide, titanium isopropyl triisostearate and carboxymethyl cellulose into an acrylic emulsion and stirring uniformly to obtain a mixed liquid, then heating the mixed liquid to 85-95℃, then adding dry strength agent and lubricant and reacting for 2-4h, then adding modified polyvinyl alcohol and stirring for 15-20min, then cooling to 35-40℃, adjusting the viscosity to 10000-12000mPa.s, and then obtaining the tensile-resistant glue;

[0008] (4) Paper sizing: adding the tensile-resistant glue into a sizing machine, and then sizing the immersed paper treated in step (2) by the sizing machine, and then drying, and then controlling the moisture of the paper after drying to 5-7.5%;

[0009] (5) Paper winding: winding the sized and dried paper;

[0010] (6) Honeycomb hole opening: placing the wound paper into a honeycomb paper slotting machine, and then slotting the paper by the honeycomb paper slotting machine, wherein the positions of the adjacent two rows of hole positions are staggered with each other.

[0011] In step (1), the sulphate needle leaf pulp accounts for 35-60% by mass percentage, the sulphate bamboo pulp accounts for 35-60% by mass percentage, and the Neosinocalamus affinis bamboo powder accounts for 2-8% by mass percentage.

[0012] The particle size of the Neosinocalamus affinis bamboo powder is set to 10-100 nm.

[0013] The proportions of various raw materials in the anti-tension glue are as follows by mass percentage:

[0014] Rosin modified alkyd resin 2-15%;

[0015] Oxidized starch 20-40%;

[0016] Polyethylene oxide 2-6%;

[0017] Titanium isopropyl isostearate 2-6%;

[0018] Carboxymethyl cellulose 2-10%;

[0019] Acrylic emulsion 20-40%;

[0020] Dry strength agent 3-8%;

[0021] Lubricant 2-6%;

[0022] Modified polyvinyl alcohol 5-10%.

[0023] As preferred, the preparation method of the modified polyvinyl alcohol comprises the following steps:

[0024] Add 35-50% polyvinyl alcohol solution to 30-45% montmorillonite dispersion liquid, and add 2-6% glycerol, 5-10% silane coupling agent, and 3-8% sodium hydroxide, heat to 80-90°C, stir and then stand to defoam, to obtain modified polyvinyl alcohol;

[0025] As preferred, the silane coupling agent is set to vinyltrimethoxysilane.

[0026] As preferred, the oxidized starch is set to one or a combination of corn oxidized starch, cassava oxidized starch, and potato oxidized starch.

[0027] As preferred, the lubricant is set to calcium stearate lubricant, and the dry strength agent is set to modified anionic starch.

[0028] As preferred, the sizing amount of the top roll and the bottom roll of the sizing machine is 1.5-3.5 g / m 2 .

[0029] Preferably, in step (4), the drying condition is infrared drying of the sized paper at 90-130 DEG C for 20-30 min using an electric infrared generator.

[0030] Preferably, the honeycomb paper slotting machine comprises an unwinding roller, a guide roller, a cutter roller, a traction pressure roller and a winding roller, the unwinding roller, the traction pressure roller and the winding roller are arranged in sequence along a paper feeding direction, the guide roller is arranged at least one and is arranged between the unwinding roller and the traction pressure roller along the paper feeding direction, the cutter roller is located directly above the traction pressure roller, the traction pressure roller and / or the cutter roller is driven to rotate by a first rotary drive device, the cutter roller comprises a cutter roller body, a cutter mounting cylinder, a cutter sponge sleeve and a plurality of cutters, the entire outer surface of the cutter roller body is provided with a plurality of thread positioning holes arranged in a matrix, the cutter mounting cylinder is fixed with the cutter roller body by screws installed at specified thread positioning hole positions, the cutters are uniformly mounted on the entire outer surface of the cutter mounting cylinder, the positions of adjacent two rows of cutters are staggered with each other, the cutter sponge sleeve is mounted on the outer surface of the cutter mounting cylinder, the cutter sponge sleeve is provided with cutter containing holes corresponding to the positions of the cutters, the outer surface of the traction pressure roller is provided with a traction sponge sleeve, and the winding roller is driven to rotate by a second rotary drive device.

[0031] The second aspect of the present application provides a honeycomb paper capable of preventing tensile fracture, which is prepared according to the above preparation method.

[0032] Compared with the prior art, the present application has the following beneficial effects:

[0033] 1、The preparation method of the present application is simple and reasonable, the structural strength and tensile strength of the prepared honeycomb paper are high, and the product quality is greatly improved.

[0034] 2、The present application combines kraft softwood pulp and kraft bamboo pulp, and adds Yushan bamboo powder, which can fill the fibers between kraft softwood pulp and kraft bamboo pulp well, improve the interfacial bonding force between fibers, and thus improve the mechanical strength of the honeycomb paper.

[0035] 3、The present application can greatly improve the tensile properties of the honeycomb paper by immersing the base paper in the chitosan methacrylate impregnating solution.

[0036] 4、The present application adds rosin modified alkyd resin, oxidized starch, polyethylene oxide, titanium isopropyl titanate, carboxymethyl cellulose, acrylic emulsion, dry strength agent, lubricant and modified polyvinyl alcohol to the tensile adhesive, the rosin modified alkyd resin can form a stable adhesive layer under the synergistic action of oxidized starch and titanium isopropyl titanate, ensuring the density and stability of the adhesive layer on the honeycomb paper, and the modified polyvinyl alcohol and carboxymethyl cellulose can not only increase the tensile strength of the honeycomb paper, but also improve the surface pore structure of the honeycomb paper.

[0037] 5、The honeycomb paper slotting machine has reasonable structure design, good hole opening effect, sponge sleeves are arranged on the cutter roller and the traction pressure roller, which is beneficial to the movement and transportation of the paper and cannot damage the honeycomb paper, the quality of the honeycomb paper is ensured, and the position of the cutter is convenient to adjust. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0039] Figure 1 is a physical diagram of the honeycomb paper when stretched, which is provided by the embodiment of the present application;

[0040] Figure 2 is a structural schematic diagram of the honeycomb paper when not stretched, which is provided by the embodiment of the present application;

[0041] Figure 3 is a layer structure schematic diagram of the honeycomb paper, which is provided by the embodiment of the present application;

[0042] Figure 4 is a structural schematic diagram of the honeycomb paper slotting machine, which is provided by the embodiment of the present application;

[0043] Figure 5 is a structural schematic diagram of the cutter roller and the traction pressure roller, which is provided by the embodiment of the present application;

[0044] Figure 6 is a structural schematic diagram of the cutter roller, which is provided by the embodiment of the present application. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without any creative effort belong to the protection scope of the present application.

[0046] Please refer to Figure 1 and Figure 2 , which shows a honeycomb paper 1 that can prevent tensile fracture, and the honeycomb paper is provided with a plurality of rows of strip-shaped hole positions. Among them, the positions of the two adjacent rows of hole positions are staggered with each other. When the honeycomb paper is stretched for use, the hole positions of the honeycomb paper can be expanded to form a honeycomb net structure.

[0047] As Figure 3 shown, the honeycomb paper 1 of the present embodiment can include a base paper layer 11 and a tensile-resistant glue layer 12 located on both upper and lower surfaces of the base paper layer 11. Embodiment

[0048] The present embodiment 1 provides a method for preparing a honeycomb paper capable of preventing tensile fracture, comprising the following steps:

[0049] (1) Papermaking: 35% of kraft softwood pulp and 57% of kraft bamboo pulp are mixed together to form a first mixed pulp, then 8% of sinocalamus williamsii bamboo powder is added and stirred uniformly to obtain a second mixed pulp, then the second mixed pulp is formed into a shape, and after dehydration and drying treatment, a base paper is obtained;

[0050] In the present embodiment, the particle size of the sinocalamus williamsii bamboo powder is set to 10 nm.

[0051] (2) Impregnation: the base paper is impregnated in a chitosan methacrylate impregnation solution to obtain an impregnated paper;

[0052] (3) Tensile-resistant glue preparation: 5% of rosin modified alkyd resin, 30% of oxidized starch, 2% of polyethylene oxide, 3% of titanium isopropyl triisostearate and 2% of carboxymethyl cellulose are put into 40% of acrylic emulsion and stirred uniformly to obtain a mixed solution, then the mixed solution is heated to 85°C, 5% of dry strength agent and 3% of lubricant are added and reacted for 2h, then 10% of modified polyvinyl alcohol is added and stirred for 15min, the temperature is lowered to 35°C, and the viscosity is adjusted to 12000mPa.s to obtain the tensile-resistant glue.

[0053] In the present embodiment, the oxidized starch is set to corn oxidized starch. The lubricant is set to calcium stearate lubricant. The dry strength agent is set to modified anionic starch.

[0054] The preparation method of the modified polyvinyl alcohol comprises the following steps:

[0055] According to the mass percentage, 35% of polyvinyl alcohol solution is added to 45% of montmorillonite dispersion liquid, and 2% of glycerol, 10% of silane coupling agent and 8% of sodium hydroxide are added, heated to 80°C, stirred and then placed to defoam, to obtain the modified polyvinyl alcohol.

[0056] In the present embodiment, the silane coupling agent is set to vinyltrimethoxysilane.

[0057] (4) Paper sizing: the tensile-resistant glue is added to a sizing machine, and the impregnated paper treated in step (2) is sized on both sides by the sizing machine, and then dried, and the moisture content of the paper after drying is controlled to 5%;

[0058] In step (4), the sizing amount of the top roller and the bottom roller of the sizing machine is 1.5 g / m 2 The drying condition is that the sized paper is dried by an electric infrared generator at 100°C for 30 min.

[0059] (5) Paper winding: the sized and dried paper is wound up;

[0060] (6) Honeycomb hole opening: the wound paper is put into a honeycomb paper slotting machine to open holes on the paper by the honeycomb paper slotting machine. Embodiment

[0061] The embodiment 2 provides a preparation method of honeycomb paper capable of preventing tensile fracture, comprising the following steps:

[0062] (1) Paper making: 50% of kraft softwood pulp and 45% of kraft bamboo pulp are mixed to form a first mixed pulp, then 5% of sinocalamus williamsii bamboo powder is added and stirred uniformly to obtain a second mixed pulp, then the second mixed pulp is formed into a shape, and after dehydration and drying treatment, a raw paper is obtained;

[0063] In the embodiment, the particle size of the sinocalamus williamsii bamboo powder is 40 nm.

[0064] (2) Impregnation: the raw paper is impregnated in a chitosan methacrylate impregnation solution to obtain an impregnated paper;

[0065] (3) Tensile adhesive preparation: 10% of rosin modified alkyd resin, 30% of oxidized starch, 4% of polyethylene oxide, 5% of titanium isopropyl titanate triisostearate and 5% of carboxymethyl cellulose are put into 30% of acrylic emulsion and stirred uniformly to obtain a mixed solution, then the mixed solution is heated to 90°C, 5% of a dry strength agent and 4% of a lubricant are added and reacted for 3 h, then 7% of modified polyvinyl alcohol is added and stirred for 20 min, the temperature is reduced to 38°C, and the viscosity is adjusted to 11000 mPa.s, so that a tensile adhesive is prepared;

[0066] In the embodiment, the oxidized starch is set as cassava oxidized starch. The lubricant is set as calcium stearate lubricant. The dry strength agent is set as modified anionic starch.

[0067] The preparation method of the modified polyvinyl alcohol comprises the following steps:

[0068] According to the mass percentage, 40% of polyvinyl alcohol solution is added into 45% of montmorillonite dispersion liquid, and 4% of glycerol, 8% of silane coupling agent and 3% of sodium hydroxide are added, the temperature is increased to 85°C, and after stirring and standing defoaming, the modified polyvinyl alcohol is obtained;

[0069] In the embodiment, the silane coupling agent is set as vinyltrimethoxysilane.

[0070] (4) Paper sizing: anti-tensile glue is added into a sizing machine, and the impregnated paper treated in step (2) is sized by the sizing machine on both sides, and then dried, and the moisture content of the paper after drying is controlled to be 6%;

[0071] In step (4), the sizing amount of the top roll and the bottom roll of the sizing machine is 2 g / m 2 . The drying condition is that the sized paper is dried by infrared rays for 25 min at 110°C using an electric infrared ray generator.

[0072] (5) Paper winding: the sized and dried paper is wound up;

[0073] (6) Honeycomb hole opening: the wound paper is placed into a honeycomb paper slotting machine, and the paper is holed by the honeycomb paper slotting machine. Embodiment

[0074] The embodiment 3 provides a preparation method of honeycomb paper capable of preventing tensile fracture, comprising the following steps:

[0075] (1) Papermaking: 60% of kraft softwood pulp and 38% of kraft bamboo pulp are mixed together to form a first mixed pulp, then 2% of sinocalamus williamsii bamboo powder is added and stirred uniformly to obtain a second mixed pulp, and then the second mixed pulp is formed into a shape, and after dehydration and drying treatment, a raw paper is obtained;

[0076] In the embodiment, the particle size of the sinocalamus williamsii bamboo powder is set to 80 nm.

[0077] (2) Impregnation: the raw paper is impregnated in a chitosan methacrylate impregnation solution to obtain an impregnated paper;

[0078] (3) Anti-tensile glue preparation: 15% of rosin modified alkyd resin, 20% of oxidized starch, 6% of polyethylene oxide, 6% of titanium isopropyl trisostearate and 10% of carboxymethyl cellulose are put into 20% of acrylic emulsion and stirred uniformly to obtain a mixed solution, then the mixed solution is heated to 95°C, 8% of a dry strength agent and 6% of a lubricant are added and reacted for 4 h, then 9% of modified polyvinyl alcohol is added and stirred for 20 min, and the viscosity is adjusted to 12000 mPa.s after cooling to 40°C, to obtain the anti-tensile glue;

[0079] In the embodiment, the oxidized starch is set to potato oxidized starch. The lubricant is set to calcium stearate lubricant. The dry strength agent is set to modified anionic starch.

[0080] The preparation method of the modified polyvinyl alcohol comprises the following steps:

[0081] 50% polyvinyl alcohol solution is added to 30% montmorillonite dispersion liquid, and 6% glycerol, 6% silane coupling agent and 8% sodium hydroxide are added, the temperature is raised to 90°C, and after stirring and standing to remove bubbles, a modified polyvinyl alcohol is obtained;

[0082] In the embodiment, the silane coupling agent is set as vinyltrimethoxysilane.

[0083] (4) Paper sizing: tensile glue is added to a sizing machine, and the impregnated paper treated in step (2) is sized on both sides by the sizing machine, and then dried, and the moisture content of the paper after drying is controlled to be 7.5%;

[0084] In step (4), the sizing amount of the top roller and the bottom roller of the sizing machine is 3.5g / m 2 . The drying condition is infrared drying of the sized paper at 130°C for 20min using an electric infrared generator.

[0085] (5) Paper winding: the sized and dried paper is wound up;

[0086] (6) Honeycomb hole opening: the wound paper is placed on a honeycomb paper slotting machine, and the paper is perforated by the honeycomb paper slotting machine.

[0087] In the above embodiment 1 to embodiment 3, the honeycomb paper slotting machine can have the following structure:

[0088] As shown in Figure 4 and Figure 5 , the honeycomb paper slotting machine can include an unwinding roller 21, a guide roller 22, a cutter roller 23, a traction pressure roller 24 and a winding roller 25, the unwinding roller 21, the traction pressure roller 24 and the winding roller 25 are arranged in sequence along the paper feeding direction, the guide roller 22 is provided with at least one and is arranged between the unwinding roller 21 and the traction pressure roller 24 along the paper feeding direction, the cutter roller 23 is located directly above the traction pressure roller 24, the traction pressure roller 24 and / or the cutter roller 23 are driven to rotate by a first rotary drive device, and the winding roller 25 is driven to rotate by a second rotary drive device.

[0089] In the embodiment, the rotary drive device can be set as a motor + belt transmission assembly.

[0090] As shown in Figure 5 and Figure 6As shown, the cutter roller 23 can include a cutter roller body 231, a cutter mounting cylinder 232, a cutter sponge sleeve 233, and a plurality of cutters 234. The entire outer surface of the cutter roller body 231 is provided with a plurality of thread positioning holes 236 arranged in a matrix. The cutter mounting cylinder 232 is fixed to the cutter roller body 231 by screws 237 installed at specified thread positioning hole positions. The cutters 234 are uniformly installed on the entire outer surface of the cutter mounting cylinder 232. The positions of two adjacent rows of cutters 234 are staggered with each other. The cutter sponge sleeve 233 is installed on the outer surface of the cutter mounting cylinder 232. The cutter sponge sleeve 233 is provided with cutter accommodating holes 235 corresponding to the positions of the cutters 234. The outer surface of the traction compression roller 24 is provided with a traction sponge sleeve 241.

[0091] Since the entire outer surface of the cutter roller body 231 is provided with a plurality of thread positioning holes 236 arranged in a matrix, after the screws 237 are loosened, the cutter mounting cylinder 232 can be conveniently adjusted at a specific position on the cutter roller body 231, and the position of the cutters relative to the paper can be conveniently adjusted.

[0092] The sponge sleeves are arranged on the cutter roller and the traction compression roller. The sponge sleeves are beneficial to the movement and transportation of the paper and will not crush the honeycomb paper, thereby ensuring the quality of the honeycomb paper.

[0093] When the paper is conveyed between the cutter roller and the traction compression roller, the sponge sleeves on the cutter roller and the traction compression roller are pressed against each other, and the cutters can extend out of the cutter accommodating holes of the cutter sponge sleeve to perforate the paper.

[0094] The honeycomb paper of the embodiments 1-3 is tested to obtain the following data:

[0095] The average value of the folding endurance is greater than or equal to 600 times, the surface water absorption is less than or equal to 25 g / m2, the surface strength is greater than or equal to 4 m / s, and the tearing force is 30-80 g. 2

[0096] The above embodiments are preferred embodiments of the present application, but the embodiments of the present application are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present application shall be equivalent replacement modes and shall be included in the protection scope of the present application.​

Claims

1. A method for producing honeycomb paper which is resistant to tensile fracture, characterized by, The method comprises the following steps: (1) Papermaking: mixing kraft softwood pulp and kraft bamboo pulp together to form a first mixed pulp, then adding Yushan bamboo powder and stirring uniformly to obtain a second mixed pulp, and then forming the second mixed pulp into a shape, and then dehydrating and drying to obtain a base paper; (2) Impregnation: impregnating the base paper in a chitosan methacrylate impregnating solution to obtain an impregnated paper; (3) Preparation of tensile adhesive: placing rosin modified alkyd resin, oxidized starch, polyethylene oxide, titanium isopropyl triisostearate and carboxymethyl cellulose into an acrylic emulsion and stirring uniformly to obtain a mixed solution, then heating the mixed solution to 85-95°C, adding dry strength agent and lubricant and reacting for 2-4h, then adding modified polyvinyl alcohol and stirring and mixing for 15-20min, cooling to 35-40°C, adjusting the viscosity to 10000-12000mPa.s, and obtaining a tensile adhesive; (4) Paper sizing: adding the tensile adhesive to a sizing machine, and using the sizing machine to size the impregnated paper treated in step (2) on both sides, and then drying, and controlling the moisture content of the paper after drying to be 5-7.5%; (5) Paper winding: winding the sized and dried paper; (6) Honeycomb hole opening: placing the wound paper into a honeycomb paper slotting machine, and using the honeycomb paper slotting machine to open holes in the paper, wherein the positions of adjacent two rows of hole positions are staggered; In step (1), the kraft softwood pulp accounts for 35-60%, the kraft bamboo pulp accounts for 35-60%, and the Yushan bamboo powder accounts for 2-8% by mass percentage; The particle size of the Yushan bamboo powder is set to 10-100nm; The proportion of each raw material in the tensile adhesive is as follows by mass percentage: Rosin modified alkyd resin 2-15%; Oxidized starch 20-40%; Polyethylene oxide 2-6%; Titanium isopropyl triisostearate 2-6%; Carboxymethyl cellulose 2-10%; Acrylic emulsion 20-40%; Dry strength agent 3-8%; Lubricant 2-6%; Modified polyvinyl alcohol 5-10%; The preparation method of the modified polyvinyl alcohol comprises the following steps: By mass percentage, 35-50% polyvinyl alcohol solution is added to 30-45% montmorillonite dispersion liquid, and 2-6% glycerol, 5-10% silane coupling agent and 3-8% sodium hydroxide are added, heated to 80-90°C, stirred and then placed to defoam, and a modified polyvinyl alcohol is obtained; The silane coupling agent is set to vinyltrimethoxysilane.

2. The method of claim 1, wherein the method is characterized by, The oxidized starch is set to one or a combination of corn oxidized starch, cassava oxidized starch and potato oxidized starch.

3. The method of claim 1, wherein the method is characterized by, The lubricant is set to calcium stearate lubricant, and the dry strength agent is set to modified anionic starch.

4. The method of claim 1, wherein the method is characterized by, The size of the top roll and the bottom roll of the size press is 1.5-3.5 g / m 2 ; In step (4), the drying condition is to use an electric infrared generator to dry the sized paper at 90-130°C for 20-30min.

5. The method of claim 1, wherein the method is characterized by, The honeycomb paper slotting machine comprises a unwinding roller, a guide roller, a cutter roller, a traction pressure roller and a winding roller, the unwinding roller, the traction pressure roller and the winding roller are arranged in sequence along a paper feeding direction, the guide roller is arranged at least one and is arranged between the unwinding roller and the traction pressure roller along the paper feeding direction, the cutter roller is located directly above the traction pressure roller, the traction pressure roller and / or the cutter roller is driven to rotate by a first rotary driving device, the cutter roller comprises a cutter roller body, a cutter mounting cylinder, a cutter sponge sleeve and a plurality of cutters, the entire outer surface of the cutter roller body is provided with a plurality of thread positioning holes arranged in a matrix, the cutter mounting cylinder is fixed with the cutter roller body by screws installed at specified thread positioning hole positions, the cutters are uniformly mounted on the entire outer surface of the cutter mounting cylinder, the positions of adjacent two rows of cutters are staggered with each other, the cutter sponge sleeve is mounted on the outer surface of the cutter mounting cylinder, the cutter sponge sleeve is provided with cutter containing holes corresponding to the positions of the cutters, the outer surface of the traction pressure roller is provided with a traction sponge sleeve, and the winding roller is driven to rotate by a second rotary driving device.

6. A honeycomb paper that is resistant to tensile failure, characterized by, The preparation method according to any one of claims 1-5. The preparation method according to any one of claims 1-5.

Citation Information

Patent Citations

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