CN117364537A - Method and system for improving toughness of potato paper based on animal fibers - Google Patents
Method and system for improving toughness of potato paper based on animal fibers Download PDFInfo
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- CN117364537A CN117364537A CN202311357910.0A CN202311357910A CN117364537A CN 117364537 A CN117364537 A CN 117364537A CN 202311357910 A CN202311357910 A CN 202311357910A CN 117364537 A CN117364537 A CN 117364537A
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- 239000000835 fiber Substances 0.000 title claims abstract description 549
- 235000002595 Solanum tuberosum Nutrition 0.000 title claims abstract description 207
- 244000061456 Solanum tuberosum Species 0.000 title claims abstract description 207
- 241001465754 Metazoa Species 0.000 title claims abstract description 161
- 238000000034 method Methods 0.000 title claims abstract description 78
- 241000196324 Embryophyta Species 0.000 claims abstract description 112
- 238000012216 screening Methods 0.000 claims abstract description 70
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 50
- 238000010586 diagram Methods 0.000 claims abstract description 42
- 235000012015 potatoes Nutrition 0.000 claims abstract description 33
- 230000006872 improvement Effects 0.000 claims abstract description 22
- 230000008569 process Effects 0.000 claims description 39
- 238000010009 beating Methods 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 13
- 239000002994 raw material Substances 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 6
- 238000013507 mapping Methods 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- CLOMYZFHNHFSIQ-UHFFFAOYSA-N clonixin Chemical compound CC1=C(Cl)C=CC=C1NC1=NC=CC=C1C(O)=O CLOMYZFHNHFSIQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000003708 edge detection Methods 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 230000006870 function Effects 0.000 description 5
- 208000010392 Bone Fractures Diseases 0.000 description 4
- 206010017076 Fracture Diseases 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 206010061592 cardiac fibrillation Diseases 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000002600 fibrillogenic effect Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000255789 Bombyx mori Species 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 206010042674 Swelling Diseases 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 238000012545 processing Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
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- 238000010025 steaming Methods 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0009—Paper-making control systems
- D21G9/0054—Paper-making control systems details of algorithms or programs
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Abstract
The invention relates to the technical field of papermaking, and discloses a potato paper toughness improving method and system based on animal fibers, wherein the method comprises the following steps: separating plant fiber from pre-collected potatoes, and preparing potato pulp of the potatoes by using the plant fiber and the animal fiber; identifying the fiber length and the fiber strength of animal and plant fibers in the first paper pulp, and preparing potato paper by using the first paper pulp based on the fiber length and the fiber strength; constructing a first relation diagram between the fiber length and the fracture toughness of the potato paper, and selecting a target fiber length and a target fiber strength of the second paper pulp from the first relation diagram and the second relation diagram; performing fiber first screening on animal and plant fibers in the second paper pulp to obtain first screened fibers, and performing fiber second screening on the first screened fibers to obtain second screened fibers; and (5) carrying out the toughness improvement of the potato paper on the potato paper by using the second screening fibers to obtain a toughness improvement result of the potato paper. The invention can improve the papermaking effect.
Description
Technical Field
The invention relates to the technical field of papermaking, in particular to a potato paper toughness improving method and system based on animal fibers.
Background
The process of improving the toughness of potato paper based on animal fibers is a process of adding animal fibers in the papermaking process to improve the fracture toughness of potato paper.
At present, the toughness of paper is improved by adding carbon fibers in the prior art, plant fibers are mostly used in the papermaking process, animal fibers are less used, and secondly, the influence of fiber length and fiber strength on fracture toughness is analyzed in the prior art, but the optimal fiber length and the optimal fiber strength which are suitable for remarkably improving the toughness of the paper are not provided. Therefore, the papermaking effect is not good enough due to lack of adjustment of fibers in the papermaking process.
Disclosure of Invention
In order to solve the problems, the invention provides a potato paper toughness improving method and system based on animal fibers, which can realize the adjustment of fibers in the papermaking process, thereby improving the papermaking effect.
In a first aspect, the invention provides a method for improving toughness of potato paper based on animal fibers, comprising the following steps:
separating plant fibers from pre-harvested potatoes, separating animal fibers from pre-harvested animal fiber raw materials, preparing potato pulp of the potatoes by using the plant fibers and the animal fibers, and dividing first pulp and second pulp in the potato pulp;
Identifying the fiber length and the fiber strength of animal and plant fibers in the first paper pulp, and preparing potato paper of the potatoes by using the first paper pulp based on the fiber length and the fiber strength;
constructing a first relation diagram between the fiber length and the fracture toughness of the potato paper, constructing a second relation diagram between the fiber strength and the fracture toughness, and selecting a target fiber length and a target fiber strength of the second paper pulp from the first relation diagram and the second relation diagram;
performing fiber first screening on the animal and plant fibers in the second paper pulp by using the target fiber length to obtain first screened fibers, and performing fiber second screening on the first screened fibers by using the target fiber strength to obtain second screened fibers;
and carrying out the toughness improvement of the potato paper on the potato paper by utilizing the second screening fibers to obtain a toughness improvement result of the potato paper.
In one possible implementation manner of the first aspect, the separating plant fibers from pre-harvested potatoes includes:
carrying out potato retting treatment on the potatoes to obtain potato fibers;
beating the potato fiber to obtain a brooming fiber, and taking the brooming fiber as the plant fiber.
In one possible implementation manner of the first aspect, the preparing potato pulp of the potato with the plant fiber and the animal fiber includes:
respectively obtaining the plant beating degree and the animal beating degree of the plant fiber and the animal fiber, and respectively configuring the plant ratio and the animal ratio of the plant fiber and the animal fiber;
mixing the plant fiber and the animal fiber based on the plant freeness and the animal freeness to obtain a first mixed fiber;
based on the plant duty ratio and the animal duty ratio, performing duty ratio adjustment on the plant duty ratio and the animal duty ratio in the first mixed fiber to obtain a second mixed fiber;
converting the second mixed fiber into an initial pulp of the potato with a predetermined additive;
detecting fracture toughness of the initial pulp;
and selecting potato pulp of the potatoes from the initial pulp based on the fracture toughness of the initial pulp.
In one possible implementation manner of the first aspect, the detecting fracture toughness of the initial pulp includes:
converting the initial pulp into initial potato paper;
the fracture toughness of the initial potato paper was calculated by the following formula:
W 1 ＝W 2 +W 3 ＝LαW 2 +αβW 3 L 2
Wherein W is 2 Representing the fracture toughness, W 3 Indicating the appearance of the original potato paper in the outer plastic zone when the original potato paper is subjected to the paper breaking treatmentThe consumed non-basic work, alpha, represents the thickness of the initial potato paper, beta represents the shape factor of the external plastic zone, and L represents the length of the breaking process zone when the initial potato paper is subjected to paper breaking treatment, depending on the geometry of the external plastic zone.
In one possible implementation manner of the first aspect, the identifying the fiber length and the fiber strength of the animal and plant fibers in the first pulp includes:
acquiring a pulp image of the first pulp;
performing edge detection on the pulp image to obtain a detection edge in the pulp image;
when the pixel points on the detection edge and other pixel points are not in the same straight line, carrying out edge segmentation on the detection edge to obtain segmented edges;
selecting a longest edge from the segmented edges;
taking the linear distance between two endpoints on the longest edge as the fiber length;
the tensile strength of the animal and plant fibers when the fibers were drawn was calculated using the following formula:
wherein σ represents the tensile strength, F represents the maximum axial tension value received by the animal and plant fibers when the fibers are drawn, and S represents the area of the tensile cross section of the animal and plant fibers when the fibers are drawn.
In one possible implementation manner of the first aspect, the constructing a first relationship between the fiber length and the fracture toughness of the potato paper includes:
performing interpolation on the missing value of the fiber length by using a preset interpolation method to obtain an interpolation missing value;
constructing a regression model between the fiber length and the fracture toughness;
inputting the interpolation missing value into the regression model to calculate fracture toughness corresponding to the interpolation missing value by using the regression model;
and constructing a length-toughness graph between the transverse axis data and the longitudinal axis data by taking the fiber length and the interpolation missing value as transverse axis data and taking the fracture toughness corresponding to the fracture toughness and the interpolation missing value as longitudinal axis data, and taking the length-toughness graph as the first relation graph.
In a possible implementation manner of the first aspect, the selecting the target fiber length and the target fiber strength of the second pulp from the first relationship diagram and the second relationship diagram includes:
calculating a first toughness difference of two fracture toughness values corresponding to each two fiber lengths in the first relation graph by using the following formula:
Δe＝e i+1 -e i
Wherein Δe represents the first toughness difference, e i+1 Represents the fracture toughness, e, corresponding to the length of the (i+1) th fiber i Representing the fracture toughness corresponding to the ith fiber length;
calculating a second toughness difference of two fracture toughness values corresponding to each two fiber strengths in the second relationship graph by using the following formula:
Δr＝r j+1 -r j
wherein Deltar represents the first toughness difference, r j+1 Represents the fracture toughness, r, corresponding to the j+1th fiber strength j Representing the fracture toughness corresponding to the j-th fiber strength;
and selecting the target fiber length and the target fiber strength of the second paper pulp by utilizing the first toughness difference value and the second toughness difference value.
In one possible implementation manner of the first aspect, the performing, with the target fiber length, a first fiber screening on the animal and plant fibers in the second pulp to obtain a first screened fiber includes:
identifying a length-component mapping relationship between the target fiber length and a preset fiber screening component;
inquiring a target fiber screening component corresponding to the target fiber length from the length component mapping relation;
and performing fiber first screening on the animal and plant fibers in the second paper pulp by utilizing the target fiber screening component to obtain first screened fibers.
In one possible implementation manner of the first aspect, the performing, with the second screening fiber, the improving of toughness of the potato paper to obtain a result of improving toughness of the potato paper includes:
obtaining second paper pulp corresponding to the second screening fibers;
replacing animal and plant fibers in the second paper pulp with the second screening fibers to obtain paper pulp with replaced fibers;
and converting the pulp with the replaced fibers into potato paper with the replaced fibers, and taking the potato paper with the replaced fibers as a toughness improvement result of the potato paper.
In a second aspect, the present invention provides an animal fiber-based potato paper toughness improvement system, the system comprising:
the pulp dividing module is used for separating plant fibers from pre-collected potatoes and separating animal fibers from pre-collected animal fiber raw materials, and preparing potato pulp of the potatoes by using the plant fibers and the animal fibers, so as to divide first pulp and second pulp in the potato pulp;
a paper preparation module for identifying the fiber length and the fiber strength of animal and plant fibers in the first paper pulp, and preparing potato paper of the potatoes by using the first paper pulp based on the fiber length and the fiber strength;
The target selection module is used for constructing a first relation diagram between the fiber length and the fracture toughness of the potato paper, constructing a second relation diagram between the fiber strength and the fracture toughness, and selecting the target fiber length and the target fiber strength of the second paper pulp from the first relation diagram and the second relation diagram;
the fiber screening module is used for carrying out fiber first screening on the animal and plant fibers in the second paper pulp by utilizing the target fiber length to obtain first screening fibers, and carrying out fiber second screening on the first screening fibers by utilizing the target fiber strength to obtain second screening fibers;
and the toughness improving module is used for improving the toughness of the potato paper by utilizing the second screening fibers to obtain a toughness improving result of the potato paper.
Compared with the prior art, the technical principle and beneficial effect of this scheme lie in:
according to the embodiment of the invention, the potato pulp of the potato is prepared by utilizing the plant fibers and the animal fibers, so that the advantages of hygroscopicity, air permeability and the like of the plant fibers and the advantages of high fiber strength and the like of the animal fibers are combined, further, the embodiment of the invention is used for selecting the fiber length and the fiber strength of the animal fibers in the first pulp, so that the degree of influence of fracture toughness of paper is affected when the fiber length and the fiber strength of different sizes are analyzed later, the embodiment of the invention is used for constructing a first relation chart between the fiber length and the fracture toughness of potato paper, so that the degree of influence of the fracture toughness of the fiber length is analyzed, further, the embodiment of the invention is used for selecting the target fiber length and the target fiber strength of the second pulp from the first relation chart and the second relation chart, so that the toughness of potato paper can be remarkably improved, the embodiment of the invention is used for selecting the animal fibers in the second pulp, so that the animal fibers in the second pulp can be remarkably improved, and the animal fibers in the second pulp can be remarkably improved, so that the toughness of the potato paper can be remarkably improved, and the animal fibers can be fully used for the animal fibers. Therefore, the method and the system for improving the toughness of the potato paper based on the animal fibers can realize the adjustment of the fibers in the papermaking process, so that the papermaking effect is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic flow chart of a method for improving toughness of potato paper based on animal fiber according to an embodiment of the invention;
FIG. 2 is a schematic illustration of the outer plastic zone and fracture process zone of the animal fiber-based potato paper toughness promotion method of FIG. 1 in accordance with one embodiment of the present invention;
FIG. 3 is a schematic diagram showing a length-toughness graph of a method for improving toughness of potato paper based on animal fiber according to an embodiment of the present invention;
fig. 4 is a schematic block diagram of a potato paper toughness improving system based on animal fibers according to an embodiment of the invention.
In the figure, 1-the outer plastic region; 2-breaking process zone; 3-initial potato paper; 400-a potato paper toughness improving system based on animal fibers; 401-pulp dividing module; 402-a paper preparation module; 403-a target selection module; 404-a fiber screening module; 405-toughness promotion module.
Detailed Description
It should be understood that the detailed description is presented by way of example only and is not intended to limit the invention.
The embodiment of the invention provides a potato paper toughness improving method based on animal fibers, and an execution subject of the potato paper toughness improving method based on animal fibers comprises, but is not limited to, at least one of a server, a terminal and the like which can be configured to execute the method provided by the embodiment of the invention. In other words, the animal fiber-based potato paper toughness improvement method may be performed by software or hardware installed in a terminal device or a server device, and the software may be a blockchain platform. The service end includes but is not limited to: a single server, a server cluster, a cloud server or a cloud server cluster, and the like. The server may be an independent server, or may be a cloud server that provides cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, content delivery networks (Content Delivery Network, CDN), and basic cloud computing services such as big data and artificial intelligence platforms.
Referring to fig. 1, a flow chart of a method for improving toughness of potato paper based on animal fibers according to an embodiment of the invention is shown. The method for improving the toughness of the potato paper based on the animal fibers shown in fig. 1 comprises the following steps:
s1, separating plant fibers from pre-collected potatoes, separating animal fibers from pre-collected animal fiber raw materials, preparing potato pulp of the potatoes by using the plant fibers and the animal fibers, and dividing first pulp and second pulp in the potato pulp.
In the embodiment of the invention, the plant fiber refers to a substance consisting of continuous or discontinuous filaments.
In one embodiment of the present invention, the separation of plant fibers from pre-harvested potatoes comprises: carrying out potato retting treatment on the potatoes to obtain potato fibers; beating the potato fiber to obtain a brooming fiber, and taking the brooming fiber as the plant fiber.
Optionally, the potato is subjected to potato retting treatment, and the process of obtaining potato fibers comprises the steps of degumming potato raw materials in alkali liquor by utilizing a retting or steaming method, and dispersing the potato raw materials into fibers; the process of beating the potato fiber to obtain the fibrillated fiber is a process of cutting the fiber by a cutting and beating method to fibrillate the fiber into paper pulp.
Further, in the embodiment of the present invention, the animal fiber raw material refers to the principle of protein fiber raw material for papermaking, such as silk and hair, and the animal fiber is mainly protein fiber.
Alternatively, the process of separating animal fibers from the animal fiber raw material collected in advance is a process of separating protein fibers from the animal fiber raw material, for example, separating silk from silkworms, separating hair from animals.
Further, the potato pulp of the potatoes is prepared by utilizing the plant fiber and the animal fiber, so that the advantages of hygroscopicity, air permeability and the like of the plant fiber are combined with the advantages of high fiber strength and the like of the animal fiber.
In one embodiment of the present invention, the preparing potato pulp of the potato using the plant fiber and the animal fiber includes: respectively obtaining the plant beating degree and the animal beating degree of the plant fiber and the animal fiber, and respectively configuring the plant ratio and the animal ratio of the plant fiber and the animal fiber; mixing the plant fiber and the animal fiber based on the plant freeness and the animal freeness to obtain a first mixed fiber; based on the plant duty ratio and the animal duty ratio, performing duty ratio adjustment on the plant duty ratio and the animal duty ratio in the first mixed fiber to obtain a second mixed fiber; converting the second mixed fiber into an initial pulp of the potato with a predetermined additive; detecting fracture toughness of the initial pulp; and selecting potato pulp of the potatoes from the initial pulp based on the fracture toughness of the initial pulp.
Wherein, the plant beating degree and the animal beating degree refer to the index for measuring the dehydration difficulty degree of paper materials and the degree of cutting, swelling, fibrillation and fibrillation of reaction fibers, and the plant ratio and the animal ratio refer to the ratio of the plant fibers to the animal fibers, for example, 20: 80. 30: 70. 40:60 and the like, wherein the plant fibers respectively account for 20, 30 and 40, the animal fibers respectively account for 80, 70 and 60, and the additives comprise a fatting agent, a wet strength agent, a dispersing agent, a reinforcing agent and the like.
Optionally, the process of mixing the plant fiber and the animal fiber based on the plant freeness and the animal freeness to obtain a first mixed fiber is a process of mixing the plant fiber with the animal fiber with a certain plant freeness in clean water, the process of adjusting the plant and animal ratios in the first mixed fiber based on the plant and animal ratios, the process of obtaining a second mixed fiber is a process of adjusting the plant and animal ratios in the first mixed fiber to a ratio consistent with the plant and animal ratios, the process of converting the second mixed fiber into an initial pulp of the potato with a preset additive is a process of mixing the additive with the second mixed fiber, and the process of selecting potato pulp from the initial pulp based on the fracture toughness of the initial pulp is a process of pulp of the potato pulp when the fracture toughness of the initial pulp meets the paper industry standards.
In yet another embodiment of the present invention, the detecting the fracture toughness of the initial pulp includes: converting the initial pulp into initial potato paper; the fracture toughness of the initial potato paper was calculated by the following formula:
W 1 ＝W 2 +W 3 ＝LαW 2 +αβW 3 L 2
wherein W is 2 Representing the fracture toughness, W 3 Representing the non-basic work consumed in the external plastic zone when the initial potato paper is subjected to the paper breaking treatment, alpha representing the thickness of the initial potato paper, beta representing the shape factor of the external plastic zone, L representing the initial potato paper being subjected to the paper breaking depending on the geometry of the external plastic zoneThe length of the fracture process zone at the time of the fracture treatment.
Optionally, the process of converting the initial pulp into initial potato paper is a process of draining the initial pulp of water.
Referring to fig. 2, a schematic diagram of an external plastic region and a fracture process region of the animal fiber-based potato paper toughness improvement method according to an embodiment of the present invention is shown in fig. 1. In fig. 2, 1 denotes the outer plastic zone, 2 denotes the breaking process zone, and 3 denotes the initial potato paper.
Optionally, the process of dividing the first pulp and the second pulp in the potato pulp is to divide a plurality of potato pulp into two parts, one part is used for analyzing the factors affecting the fracture toughness, and the other part is used for making the potato paper.
S2, recognizing the fiber length and the fiber strength of animal and plant fibers in the first paper pulp, and preparing potato paper of the potatoes by using the first paper pulp based on the fiber length and the fiber strength.
The embodiment of the invention is used for analyzing the degree to which the fracture toughness of the paper is affected under the condition that the fiber lengths and the fiber strengths of different sizes are analyzed later by identifying the fiber lengths and the fiber strengths of the animal and plant fibers in the first paper pulp.
The fiber length refers to the distance between two ends measured when the fiber is straightened under the condition that the fiber is not influenced by external force, and the fiber strength refers to the maximum load born by the fiber when the fiber is broken.
In an embodiment of the invention, the identifying the fiber length and the fiber strength of the animal and plant fibers in the first pulp includes: acquiring a pulp image of the first pulp; performing edge detection on the pulp image to obtain a detection edge in the pulp image; when the pixel points on the detection edge and other pixel points are not in the same straight line, carrying out edge segmentation on the detection edge to obtain segmented edges; selecting a longest edge from the segmented edges; taking the linear distance between two endpoints on the longest edge as the fiber length; the tensile strength of the animal and plant fibers when the fibers were drawn was calculated using the following formula:
Wherein σ represents the tensile strength, F represents the maximum axial tension value received by the animal and plant fibers when the fibers are drawn, and S represents the area of the tensile cross section of the animal and plant fibers when the fibers are drawn.
The dividing edges comprise width edges and length edges, wherein the width edges are edges where the width of the fiber is located, the length edges are edges where the length of the fiber is located, and the longest edges are edges.
Optionally, the process of preparing the potato paper with the first pulp based on the fiber length and the fiber strength is to manufacture potato paper with different fiber lengths and different fiber strengths, and the principle of preparing the potato paper with the first pulp is similar to the principle of converting the initial pulp into the initial potato paper, and will not be further described herein.
S3, constructing a first relation diagram between the fiber length and the fracture toughness of the potato paper, constructing a second relation diagram between the fiber strength and the fracture toughness, and selecting the target fiber length and the target fiber strength of the second paper pulp from the first relation diagram and the second relation diagram.
Embodiments of the present invention provide for analyzing the extent of impact of the fracture toughness of the fiber length by constructing a first plot of the fiber length versus the fracture toughness of the potato paper.
In one embodiment of the invention, said constructing a first plot of said fiber length versus said fracture toughness of said potato paper comprises: performing interpolation on the missing value of the fiber length by using a preset interpolation method to obtain an interpolation missing value; constructing a regression model between the fiber length and the fracture toughness; inputting the interpolation missing value into the regression model to calculate fracture toughness corresponding to the interpolation missing value by using the regression model; and constructing a length-toughness graph between the transverse axis data and the longitudinal axis data by taking the fiber length and the interpolation missing value as transverse axis data and taking the fracture toughness corresponding to the fracture toughness and the interpolation missing value as longitudinal axis data, and taking the length-toughness graph as the first relation graph.
The interpolation missing value refers to a fiber length forming a regular fiber length sequence with a plurality of fiber lengths with different sizes.
Referring to fig. 3, a schematic diagram of a length-toughness graph of a method for improving toughness of potato paper based on animal fiber according to an embodiment of the invention is shown in fig. 1. In fig. 3, the vertical axis data is the fiber length and the interpolation deficiency value, and the vertical axis data is the fracture toughness corresponding to the fracture toughness and the interpolation deficiency value.
Further, the embodiment of the invention selects the target fiber length and the target fiber strength of the second paper pulp from the first relation diagram and the second relation diagram, so as to be used for selecting the fiber length and the fiber strength capable of remarkably improving the toughness of the potato paper.
In an embodiment of the present invention, the selecting the target fiber length and the target fiber strength of the second pulp from the first relationship diagram and the second relationship diagram includes: calculating a first toughness difference of two fracture toughness values corresponding to each two fiber lengths in the first relation graph by using the following formula:
Δe＝e i+1 -e i
wherein Δe represents the first toughness difference, e i+1 Represents the fracture toughness, e, corresponding to the length of the (i+1) th fiber i Representing the fracture toughness corresponding to the ith fiber length;
calculating a second toughness difference of two fracture toughness values corresponding to each two fiber strengths in the second relationship graph by using the following formula:
Δr＝r j+1 -r j
Wherein Deltar represents the first toughness difference, r j+1 Represent the firstFracture toughness, r, corresponding to j+1 fiber strengths j Representing the fracture toughness corresponding to the j-th fiber strength;
and selecting the target fiber length and the target fiber strength of the second paper pulp by utilizing the first toughness difference value and the second toughness difference value.
Optionally, the process of selecting the target fiber length and the target fiber strength of the second pulp by using the first toughness difference value and the second toughness difference value is as follows: when the first toughness difference is far smaller than the last first toughness difference, if the first toughness difference is similar to the first toughness difference after the first toughness difference, the fracture toughness is not gradually increased, and a relaxed state exists in the fracture toughness, the fiber length corresponding to the first toughness difference at this time and the first toughness difference after the first toughness difference is taken as the target fiber length, and the principle of selecting the target fiber strength of the second paper pulp is similar to that of selecting the target fiber length of the second paper pulp, and further description is omitted.
S4, performing fiber first screening on the animal and plant fibers in the second paper pulp by using the target fiber length to obtain first screened fibers, and performing fiber second screening on the first screened fibers by using the target fiber strength to obtain second screened fibers.
According to the embodiment of the invention, the animal and plant fibers in the second paper pulp are subjected to fiber first screening by utilizing the target fiber length, so that the animal and plant fibers with the fiber length which does not meet the target fiber length in the animal and plant fibers in the second paper pulp are removed, and the animal and plant fibers with the target fiber length are reserved, so that the toughness of the potato paper is improved.
In an embodiment of the present invention, the first screening of the fibers of the animals and plants in the second pulp by using the target fiber length to obtain first screened fibers includes: identifying a length-component mapping relationship between the target fiber length and a preset fiber screening component; inquiring a target fiber screening component corresponding to the target fiber length from the length component mapping relation; and performing fiber first screening on the animal and plant fibers in the second paper pulp by utilizing the target fiber screening component to obtain first screened fibers.
The fiber screening component refers to a screening standard which is set when a fiber screening instrument screens fibers and is used for distinguishing long fiber fractions from fine components, and the fiber screening component comprises 20 meshes, 40 meshes, 60 meshes, 80 meshes, 100 meshes and the like, wherein the larger the fiber screening component is, the finer the fibers passing through holes of the fiber screening instrument are.
Optionally, the process of performing the second screening on the first screened fiber by using the target fiber strength is a process of selecting a fiber with a fiber strength which meets the target fiber strength from the first screened fiber.
S5, carrying out potato paper toughness improvement on the potato paper by utilizing the second screening fibers to obtain a potato paper toughness improvement result.
According to the potato paper, the second screening fibers are used for improving the toughness of the potato paper, so that the potato paper is manufactured by the selected fibers after the fibers capable of remarkably improving the toughness of the potato paper are selected.
In an embodiment of the present invention, the improving toughness of the potato paper by using the second screening fiber to improve toughness of the potato paper includes: obtaining second paper pulp corresponding to the second screening fibers; replacing animal and plant fibers in the second paper pulp with the second screening fibers to obtain paper pulp with replaced fibers; and converting the pulp with the replaced fibers into potato paper with the replaced fibers, and taking the potato paper with the replaced fibers as a toughness improvement result of the potato paper.
Optionally, the principle of converting the pulp of the replacement fiber into the potato paper of the replacement fiber is similar to the principle of converting the initial pulp into the initial potato paper, and is not further described herein.
It can be seen that, in the embodiment of the present invention, the advantages of hygroscopicity, breathability, and the like of the plant fiber and the advantages of high fiber strength of the animal fiber are combined by using the plant fiber and the animal fiber to prepare the potato pulp of the potato, further, the embodiment of the present invention is used for selecting the fiber length and the fiber strength of the animal fiber in the first pulp by identifying the fiber length and the fiber strength of the animal fiber, for the purpose of performing the first screening of the animal fiber and the plant fiber in the second pulp by using the target fiber length to analyze the degree of the influence of the fiber length on the fracture toughness of the potato paper, and further, the embodiment of the present invention is used for selecting the target fiber length and the target fiber strength of the second pulp from the first relation and the second relation, for the purpose of selecting the animal fiber and the animal fiber in the second pulp, for the purpose of performing the first screening of the animal fiber with the fiber length and the animal fiber in the second pulp, for the purpose of performing the first screening of the animal fiber and the second pulp, and for the purpose of performing the good toughness improvement of the animal fiber and the good quality of the animal fiber. Therefore, the potato paper toughness improving method based on the animal fibers can realize the adjustment of the fibers in the papermaking process, so that the papermaking effect is improved.
FIG. 4 is a functional block diagram of the potato paper toughness improvement system based on animal fibers according to the present invention.
The animal fiber-based potato paper toughness improvement system 400 of the present invention may be installed in an electronic device. Depending on the functions implemented, the animal fiber-based potato paper toughness promotion system may include a pulp classification module 401, a paper preparation module 402, a target selection module 403, a fiber screening module 404, and a toughness promotion module 405. The module of the invention, which may also be referred to as a unit, refers to a series of computer program segments, which are stored in the memory of the electronic device, capable of being executed by the processor of the electronic device and of performing a fixed function.
In the embodiment of the present invention, the functions of each module/unit are as follows:
the pulp dividing module 401 is configured to separate plant fibers from pre-collected potatoes, separate animal fibers from pre-collected animal fiber raw materials, and utilize the plant fibers and the animal fibers to prepare potato pulp of the potatoes, so as to divide first pulp and second pulp in the potato pulp;
the paper preparation module 402 is configured to identify a fiber length and a fiber strength of animal and plant fibers in the first pulp, and prepare potato paper of the potato using the first pulp based on the fiber length and the fiber strength;
The target selection module 403 is configured to construct a first relationship diagram between the fiber length and the fracture toughness of the potato paper, and construct a second relationship diagram between the fiber strength and the fracture toughness, and select a target fiber length and a target fiber strength of the second pulp from the first relationship diagram and the second relationship diagram;
the fiber screening module 404 is configured to perform a first fiber screening on the animal and plant fibers in the second pulp by using the target fiber length to obtain a first screened fiber, and perform a second fiber screening on the first screened fiber by using the target fiber strength to obtain a second screened fiber;
the toughness improving module 405 is configured to improve toughness of the potato paper by using the second screening fiber to obtain a toughness improving result of the potato paper.
In detail, the modules in the animal fiber-based potato paper toughness improvement system 400 according to the embodiment of the present invention use the same technical means as the animal fiber-based potato paper toughness improvement method described in fig. 1 to 3, and can produce the same technical effects, which are not described herein.
The present invention also provides a storage medium storing a computer program which, when executed by a processor of an electronic device, can implement:
separating plant fibers from pre-harvested potatoes, separating animal fibers from pre-harvested animal fiber raw materials, preparing potato pulp of the potatoes by using the plant fibers and the animal fibers, and dividing first pulp and second pulp in the potato pulp;
identifying the fiber length and the fiber strength of animal and plant fibers in the first paper pulp, and preparing potato paper of the potatoes by using the first paper pulp based on the fiber length and the fiber strength;
constructing a first relation diagram between the fiber length and the fracture toughness of the potato paper, constructing a second relation diagram between the fiber strength and the fracture toughness, and selecting a target fiber length and a target fiber strength of the second paper pulp from the first relation diagram and the second relation diagram;
performing fiber first screening on the animal and plant fibers in the second paper pulp by using the target fiber length to obtain first screened fibers, and performing fiber second screening on the first screened fibers by using the target fiber strength to obtain second screened fibers;
And carrying out the toughness improvement of the potato paper on the potato paper by utilizing the second screening fibers to obtain a toughness improvement result of the potato paper.
In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus, system and method may be implemented in other manners. For example, the system embodiments described above are merely illustrative, e.g., the division of the modules is merely a logical function division, and other manners of division may be implemented in practice.
The modules described as separate components may or may not be physically separate, and components shown as modules may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional module in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units can be realized in a form of hardware or a form of hardware and a form of software functional modules.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.
The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims shall not be construed as limiting the claim concerned.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A method for improving the toughness of potato paper based on animal fibers, which is characterized by comprising the following steps:
separating plant fibers from pre-harvested potatoes, separating animal fibers from pre-harvested animal fiber raw materials, preparing potato pulp of the potatoes by using the plant fibers and the animal fibers, and dividing first pulp and second pulp in the potato pulp;
identifying the fiber length and the fiber strength of animal and plant fibers in the first paper pulp, and preparing potato paper of the potatoes by using the first paper pulp based on the fiber length and the fiber strength;
constructing a first relation diagram between the fiber length and the fracture toughness of the potato paper, constructing a second relation diagram between the fiber strength and the fracture toughness, and selecting a target fiber length and a target fiber strength of the second paper pulp from the first relation diagram and the second relation diagram;
Performing fiber first screening on the animal and plant fibers in the second paper pulp by using the target fiber length to obtain first screened fibers, and performing fiber second screening on the first screened fibers by using the target fiber strength to obtain second screened fibers;
and carrying out the toughness improvement of the potato paper on the potato paper by utilizing the second screening fibers to obtain a toughness improvement result of the potato paper.
2. The method of claim 1, wherein said separating plant fibers from pre-harvested potatoes comprises:
carrying out potato retting treatment on the potatoes to obtain potato fibers;
beating the potato fiber to obtain a brooming fiber, and taking the brooming fiber as the plant fiber.
3. The method of claim 1, wherein said preparing potato pulp of said potatoes from said plant fibers and said animal fibers comprises:
respectively obtaining the plant beating degree and the animal beating degree of the plant fiber and the animal fiber, and respectively configuring the plant ratio and the animal ratio of the plant fiber and the animal fiber;
mixing the plant fiber and the animal fiber based on the plant freeness and the animal freeness to obtain a first mixed fiber;
Based on the plant duty ratio and the animal duty ratio, performing duty ratio adjustment on the plant duty ratio and the animal duty ratio in the first mixed fiber to obtain a second mixed fiber;
converting the second mixed fiber into an initial pulp of the potato with a predetermined additive;
detecting fracture toughness of the initial pulp;
and selecting potato pulp of the potatoes from the initial pulp based on the fracture toughness of the initial pulp.
4. The method of claim 1, wherein said detecting fracture toughness of the initial pulp comprises:
converting the initial pulp into initial potato paper;
the fracture toughness of the initial potato paper was calculated by the following formula:
W 1 ＝W 2 +W 3 ＝LαW 2 +αβW 3 L 2
wherein W is 2 Representing the fracture toughness, W 3 Representing the non-basic work consumed in the external plastic zone when the initial potato paper is subjected to the paper breaking treatment, alpha representing the thickness of the initial potato paper, beta representing the shape factor of the external plastic zone, and L representing the length of the breaking process zone when the initial potato paper is subjected to the paper breaking treatment, depending on the geometry of the external plastic zone.
5. The method of claim 1, wherein the identifying fiber length and fiber strength of animal and plant fibers in the first pulp comprises:
Acquiring a pulp image of the first pulp;
performing edge detection on the pulp image to obtain a detection edge in the pulp image;
when the pixel points on the detection edge and other pixel points are not in the same straight line, carrying out edge segmentation on the detection edge to obtain segmented edges;
selecting a longest edge from the segmented edges;
taking the linear distance between two endpoints on the longest edge as the fiber length;
the tensile strength of the animal and plant fibers when the fibers were drawn was calculated using the following formula:
wherein σ represents the tensile strength, F represents the maximum axial tension value received by the animal and plant fibers when the fibers are drawn, and S represents the area of the tensile cross section of the animal and plant fibers when the fibers are drawn.
6. The method of claim 1, wherein said constructing a first plot of said fiber length versus said fracture toughness of said potato paper comprises:
performing interpolation on the missing value of the fiber length by using a preset interpolation method to obtain an interpolation missing value;
constructing a regression model between the fiber length and the fracture toughness;
inputting the interpolation missing value into the regression model to calculate fracture toughness corresponding to the interpolation missing value by using the regression model;
And constructing a length-toughness graph between the transverse axis data and the longitudinal axis data by taking the fiber length and the interpolation missing value as transverse axis data and taking the fracture toughness corresponding to the fracture toughness and the interpolation missing value as longitudinal axis data, and taking the length-toughness graph as the first relation graph.
7. The method of claim 1, wherein selecting the target fiber length and target fiber strength of the second pulp from the first and second graphs comprises:
calculating a first toughness difference of two fracture toughness values corresponding to each two fiber lengths in the first relation graph by using the following formula:
Δe＝e i+1 -e i
wherein Δe represents the first toughness difference, e i+1 Represents the fracture toughness, e, corresponding to the length of the (i+1) th fiber i Representing the fracture toughness corresponding to the ith fiber length;
calculating a second toughness difference of two fracture toughness values corresponding to each two fiber strengths in the second relationship graph by using the following formula:
Δr＝r j+1 -r j
wherein Deltar represents the first toughness difference, r j+1 Represents the fracture toughness, r, corresponding to the j+1th fiber strength j Representing the fracture toughness corresponding to the j-th fiber strength;
And selecting the target fiber length and the target fiber strength of the second paper pulp by utilizing the first toughness difference value and the second toughness difference value.
8. The method according to claim 1, wherein the performing a first fiber screening on the animal and plant fibers in the second pulp using the target fiber length to obtain first screened fibers comprises:
identifying a length-component mapping relationship between the target fiber length and a preset fiber screening component;
inquiring a target fiber screening component corresponding to the target fiber length from the length component mapping relation;
and performing fiber first screening on the animal and plant fibers in the second paper pulp by utilizing the target fiber screening component to obtain first screened fibers.
9. The method of claim 1, wherein said improving the toughness of said potato paper using said second sifting fibers to obtain a potato paper toughness improvement result comprises:
obtaining second paper pulp corresponding to the second screening fibers;
replacing animal and plant fibers in the second paper pulp with the second screening fibers to obtain paper pulp with replaced fibers;
and converting the pulp with the replaced fibers into potato paper with the replaced fibers, and taking the potato paper with the replaced fibers as a toughness improvement result of the potato paper.
10. A potato paper toughness promotion system based on animal fibers, the system comprising:
the pulp dividing module is used for separating plant fibers from pre-collected potatoes and separating animal fibers from pre-collected animal fiber raw materials, and preparing potato pulp of the potatoes by using the plant fibers and the animal fibers, so as to divide first pulp and second pulp in the potato pulp;
a paper preparation module for identifying the fiber length and the fiber strength of animal and plant fibers in the first paper pulp, and preparing potato paper of the potatoes by using the first paper pulp based on the fiber length and the fiber strength;
the target selection module is used for constructing a first relation diagram between the fiber length and the fracture toughness of the potato paper, constructing a second relation diagram between the fiber strength and the fracture toughness, and selecting the target fiber length and the target fiber strength of the second paper pulp from the first relation diagram and the second relation diagram;
the fiber screening module is used for carrying out fiber first screening on the animal and plant fibers in the second paper pulp by utilizing the target fiber length to obtain first screening fibers, and carrying out fiber second screening on the first screening fibers by utilizing the target fiber strength to obtain second screening fibers;
And the toughness improving module is used for improving the toughness of the potato paper by utilizing the second screening fibers to obtain a toughness improving result of the potato paper.
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