CN112813727B - Method for making instant paper pulp capable of being formed for multiple times - Google Patents
Method for making instant paper pulp capable of being formed for multiple times Download PDFInfo
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- CN112813727B CN112813727B CN202110087693.2A CN202110087693A CN112813727B CN 112813727 B CN112813727 B CN 112813727B CN 202110087693 A CN202110087693 A CN 202110087693A CN 112813727 B CN112813727 B CN 112813727B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F13/00—Making discontinuous sheets of paper, pulpboard or cardboard, or of wet web, for fibreboard production
- D21F13/02—Making hand-made paper
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/02—Methods of beating; Beaters of the Hollander type
- D21D1/08—Beaters with means for driving the pulp quickly
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
Abstract
The invention provides a method for making instant paper pulp capable of being formed for many times, which belongs to the technical field of manual paper making process and comprises primary forming and secondary forming, wherein the primary forming comprises softening paper making raw materials and making paper pulp, forming the paper pulp through manual paper making, taking out and baking to make paper; the reshaping comprises the steps of reforming the hand-made paper into paper pulp, forming the paper pulp by hand-made paper making, taking out and baking to form new paper; the pulp is made by using the action of direction consistency by two hands, so that water is impacted to decompose the pulp and is not arranged at the cross of pulp fibers. Meanwhile, the paper pulp is not subjected to the pressure of water flow in the forming process, paper pulp fibers can be automatically combined nearby to form paper without toughness tension, loose paper with fibers connected is formed, the paper can be quickly dissolved into the paper pulp after being recycled on the premise of not influencing normal use, the paper pulp is recycled, the cost can be reduced, and the environment-friendly concept is also met.
Description
Technical Field
The invention belongs to the technical field of manual papermaking processes, and particularly relates to a method for manufacturing instant paper pulp capable of being formed repeatedly.
Background
Manual paper making, also known as "earth-based" paper making, refers to a manual paper making process that is currently practiced by the inventive papermaking process without, or with very simple, machinery. The main raw materials for hand-made paper are hemp, bark, bamboo and rice sheet. The bast fiber includes ramie, flax, ramie, jute, etc. The bark includes wingceltis, mulberry bark, broussonetia papyrifera, etc. The most used of bamboo are moso bamboo and sago sagittaria. The traditional handmade paper making method in China has a whole set of production procedures, and basically adopts the steps of big similarity and small difference no matter what raw materials are adopted and what paper is made. The main production processes comprise soaking, boiling, washing, drying in the sun, beating, fishing out paper, squeezing and baking.
At present, under the environment with increasing emphasis on cultural inheritance, the manual paper making is popular as a non-material cultural heritage, the demand of the manual paper making is increased day by day, and a large amount of manual paper making is consumed particularly in the aspect of teaching or cultural experience, so that certain resource waste is caused, and the concept of environmental protection is not met.
Disclosure of Invention
Based on the problems in the prior art, the invention provides a method for manufacturing instant paper pulp capable of being molded for multiple times, which comprises the steps of molding for the first time and re-molding, wherein the molding for the first time comprises softening paper making raw materials and making paper pulp, molding the paper pulp through manual papermaking, and taking out and baking to make hand-made paper;
the hand-made paper made by the first forming can be used for daily teaching or other temporary manufacturing purposes, the hand-made paper after being used can be recycled, the re-forming comprises the steps of recycling the hand-made paper, re-making the hand-made paper into paper pulp, forming the paper pulp by manual paper making, taking out and baking to form new hand-made paper;
the manual papermaking comprises the following steps:
step S31: placing a paper net in an operation pool, placing a paper net pressing, sinking and stirring frame right above the paper net to press and sink the paper net to the water surface, and mutually connecting the lower part of the paper net pressing, sinking and stirring frame and the upper part of a paper net frame to form sealing;
step S32: injecting quantitative paper pulp into a paper mesh pressing and sinking pulp stirring frame above the paper mesh, and pouring a proper amount of paper pulp according to actual requirements so as to manufacture manual paper with proper thickness;
step S33: an operator naturally stands on one side of the operation pool, palms of two hands are inserted into paper pulp of the paper web press-sinking mixing frame, five fingers of the palms naturally open and move along the direction vertical to the palms, the moving directions of the palms of the two hands are consistent, the moving tracks of the palms of the two hands are parallel to each other, gestures are not crossed, water is not required to form circular flow, the palms move from one side surface of the paper web press-sinking mixing frame to the other opposite side surface, or move from one bottom surface of the paper web press-sinking mixing frame to the other bottom surface of the paper web press-sinking mixing frame and then are taken out, the inserting positions are adjusted to move again, all moving tracks form parallel line groups which are fully paved with the paper web press-sinking mixing frame, the actions are repeated to mix and stir the paper pulp, fiber filaments in the paper pulp float above the paper web along the same extending direction and are gradually and stably formed, the paper web and the paper pulp are kept below the water surface before forming, the stirring and moving operation of the reshaping is the same as the first forming, but the action force is accelerated, the rapid forming and the water filtering paper disc is taken out or the water is obliquely filtered;
step S34: the operator can stably lift and take out the paper net sinking and stirring frame by both hands, so that the frame of the paper net synchronously rises and is higher than the water surface of the operation pool under the buoyancy action of water, and the paper pulp fibers can be automatically combined to form paper without toughness tension and then the paper pulp is pasted on the paper net;
step S35: the operator can stably and slowly lift the paper net out of the operation pool by both hands, and obliquely stand the paper net to drain water.
The parallel line group formed by the palm rowing track is a parallel line group extending left and right along the paper net press-sinking pulp stirring frame, or a parallel line group extending front and back, or a parallel line group extending up and down, or a parallel line group extending horizontally and obliquely at a certain angle, or a parallel line group extending vertically and obliquely at a certain angle, preferably a parallel line group extending up and down, and water is stirred up and down to collide and decompose pulp instead of crossing pulp fibers, so that the pulp fibers naturally form paper.
Wherein the papermaking raw material comprises pulp board or wet bark or other common papermaking raw materials; the softened papermaking raw material comprises the following steps of S10: soaking the paper making raw material by using clear water to soften the paper making raw material, or treating the raw material by one or more of the procedures of cooking, rinsing and drying in the sun;
the pulping comprises the step S20: the treated papermaking raw material obtained in step S10 is decomposed into pulp using a beating machine.
Wherein, the time for soaking in clear water in the step S10 is more than one hour, so as to soften the material and facilitate the subsequent decomposition of the material into paper pulp;
in step S20, the rotation speed of the stirring motor applied to the primarily molded beating machine is 960 rpm, and the rotation speed of the stirring motor applied to the secondarily molded beating machine is 1600 rpm.
Wherein, the mass ratio of the paper pulp formed for the first time is that the paper making raw materials: water =1:3000, the mass ratio of the pulp to be reshaped is manual paper making: water =1:3600.
wherein, in the step S20, the stirring time of the beating machine is prolonged until the length of the fiber is less than 0.5mm.
Wherein, the step of taking out and baking to form the hand paper comprises the following steps:
step S40: and conveying the paper nets without water drops and filled with wet paper to a drying yard, wherein every two paper surfaces of the paper nets are opposite, the tops of the paper nets are connected and placed on the drying yard and obliquely overlapped to form a regular triangle, and extension lines of top frames of the two groups of paper nets are parallel to a yellow road surface and are baked through sun irradiation.
Wherein, the paper baking time is 6 to 8 hours of direct sun drying.
The invention has the following beneficial effects:
the invention optimizes and improves the manual papermaking mode, paper making is carried out on paper pulp through the action of using the direction consistency by both hands, gestures are not crossed during papermaking, water flow does not form circulation, and the action stirring of papermaking enables water to impact and decompose pulp instead of being placed in the pulp fibers to be crossed, so that paper is naturally formed. Meanwhile, the paper is always underwater before being formed, and is only slowly taken out after being formed, namely, the paper pulp is not subjected to the pressure of water flow (downward) in the forming process, and paper pulp fibers can be automatically combined nearby to form paper without toughness tension and can be adhered to a paper net. The paper with loose fiber connection is formed, the effect of quickly dissolving the paper pulp into paper pulp and forming the paper again can be achieved after the paper is recycled on the premise of not influencing normal use, the paper is recycled, the cost can be reduced, and the idea of environmental protection is also met.
Drawings
Fig. 1 is a diagram of equipment used in the manufacturing process of the instant paper pulp capable of being formed repeatedly in the embodiment.
FIG. 2 is a schematic diagram of an embodiment of handsheet trace forming parallel line sets extending back and forth.
Fig. 3 is a schematic diagram of the handsheet trace in the embodiment as parallel line groups extending left and right.
Fig. 4 is a schematic diagram of the hand-made traces in the embodiment as parallel line groups extending up and down, and the rectangle is a side view of the paper net press-sinking paddle frame.
FIG. 5 is a schematic illustration of parallel line sets with the handsheet trace inclined at an angle to the horizontally extending parallel line sets in an embodiment.
Fig. 6 is a schematic diagram of parallel line groups of vertically extending parallel line groups with inclined angle of hand-made tracks in the embodiment, wherein a rectangle is a side view of a paper net press-sinking paddle frame.
The arrowed lines in fig. 2-6 represent stroke direction and stroke distribution, but the line length does not represent the path of a single stroke.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
The utility model provides a but fashioned instant paper pulp preparation method many times, it includes primary molding and remolding, primary molding including softening papermaking raw materials and make paper pulp, papermaking raw materials include pulp board or wet bark, make the paper pulp shaping through manual papermaking to take out the baking-dry and become hand papermaking, specifically include the following steps:
step S10: soaking the paper-making raw materials in clear water for more than one hour to soften the paper-making raw materials;
step S11: preparing a paper web 10, a paper web press-sinking agitator frame 20 and an operation tank 30, as shown in fig. 1;
the operation tank 30: a water tray or a water tank suitable for manufacturing paper is made of a suitable material, and the length and width specification of the operation tank 30 is 5cm wider than the periphery of the length and width specification of the paper net 10;
paper web press-sinking and pulp-stirring frame 20: manufacturing a paper mesh press-sinking pulp stirring frame 20 with the height of 6-8cm and the length and width specification consistent with that of the paper mesh 10 by using a proper operation material according to the length and width specification of the paper mesh 10;
step S20: and (3) decomposing the treated paper making raw material obtained in the step (S10) into paper pulp by using a pulping machine, wherein the rotating speed of a stirring motor of the pulping machine is 960 r/m, and the paper pulp mass ratio is that of the paper making raw material when paper is decomposed: water =1: 3000A;
step S31: placing the paper net 10 in an operation pool 30, placing a paper net sinking and stirring framework 20 right above the paper net 10, sinking the paper net 10 to the water surface, and mutually connecting the lower part of the paper net sinking and stirring framework 20 and the upper part of the frame of the paper net 10 to form sealing;
step S32: injecting quantitative paper pulp into a paper mesh pressing and sinking pulp stirring frame 20 above the paper mesh 10;
step S33: an operator naturally stands on one side of the operation pool 30, palms of two hands are inserted into the paper pulp of the paper web press-sinking and pulp-stirring frame 20, five fingers of the palms are naturally opened, the palms face upwards, the palms are scratched in a direction perpendicular to the palms, the scratching directions of the palms of the two hands are consistent, the scratching tracks of the palms of the two hands are parallel to each other, the palms are scratched from the bottom surface to the top surface of the paper web press-sinking and pulp-stirring frame 20 and then taken out, the inserting positions are adjusted to scratch again, all the scratching tracks form parallel line groups which are fully paved on the paper web press-sinking and pulp-stirring frame 20 and extend up and down, as shown in fig. 4, the actions are repeated to scratch and mix the paper pulp, fiber filaments in the paper pulp extend in the vertical direction and float above the paper web 10, the paper web 10 and the paper pulp are gradually and stably formed, and the paper pulp are kept below the water surface before the paper pulp is formed;
step S34: the operator stably lifts and takes out the paper mesh sinking and pulp stirring frame 20 by both hands, so that the frame of the paper mesh 10 synchronously rises and is higher than the water surface of the operation pool 30 under the buoyancy action of water;
step S35: the operator stably and slowly lifts the paper web 10 out of the operation pool 30 with both hands, and obliquely stands the paper web 10 to drain water;
step S40: the paper net 10 without water drops and filled with wet paper is conveyed to a drying yard, every two paper surfaces of the paper net 10 are opposite, the tops of the two paper surfaces are connected and placed on the drying yard and are obliquely overlapped to form a regular triangle, the extension lines of the top frames of the two groups of paper nets 10 are parallel to the yellow road surface, the two groups of paper nets are directly dried for 6-8 hours through sun irradiation, manual papermaking is formed through drying, the paper can be used at the moment, and the paper is recycled after being used, decomposed and reshaped.
The reshaping comprises hand-made paper after recycling, namely, the hand-made paper is reformed into paper pulp, the paper pulp is shaped by hand papermaking, and the paper pulp is taken out and baked to form new hand-made paper;
the re-forming adopts the same flow steps and equipment as those in the first forming, and the difference is that the papermaking raw material is replaced by recycled used paper; the rotating speed of a stirring motor of the pulping machine is 1600 revolutions per minute; the mass ratio of the paper pulp is hand-made paper: water =1:3600, the stirring time of the beating machine is prolonged to the filament length less than 0.5mm.
The stirring operation of the re-forming paper making is the same as that of the first forming, but the action speed is accelerated, the stirring time is shortened, the forming is fast, and the paper disc is taken out and inclined water filtering is performed.
As a preferred embodiment, as shown in fig. 2, 3, 5 and 6, the parallel line group formed by the palm stroke track may also be a parallel line group extending left and right along the paper web press-sinking agitator frame 20, or a parallel line group extending back and forth, or a parallel line group extending up and down, or a parallel line group extending horizontally at an angle, or a parallel line group extending vertically at an angle, which can be used in only one of the above manners.
The hand-made paper made by the method provided by the invention has loose paper quality without influencing use, the paper can be automatically decomposed into paper pulp by putting the paper into water and slightly stirring, and the effect of quickly recycling and then forming the paper can be achieved.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. A method for preparing instant paper pulp capable of being formed for many times is characterized by comprising the steps of forming for the first time and forming again, wherein the forming for the first time comprises softening paper making raw materials and preparing paper pulp, forming the paper pulp through manual papermaking, and taking out and baking to prepare hand paper;
the reshaping comprises hand-made paper after recycling, namely, the hand-made paper is reformed into paper pulp, the paper pulp is shaped by hand papermaking, and the paper pulp is taken out and baked to form new hand-made paper;
the manual papermaking method comprises the following steps:
step S31: placing a paper net (10) in an operation pool (30), placing a paper net sinking and stirring frame (20) right above the paper net (10) to sink the paper net (10) to the water surface, and mutually connecting the lower part of the paper net sinking and stirring frame (20) and the upper part of the frame of the paper net (10) to form sealing;
step S32: injecting quantitative paper pulp into a paper mesh pressing and sinking pulp stirring frame (20) above the paper mesh (10);
step S33: an operator naturally stands on one side of the operation pool (30), palms of two hands are inserted into paper pulp of the paper web press-sinking and stirring frame (20), five fingers of the palms are naturally opened and are scratched in a direction vertical to the palms, the scratching directions of the palms of the two hands are consistent, the scratching tracks of the palms of the two hands are parallel to each other, the palms are scratched from one side surface of the paper web press-sinking and stirring frame (20) to the other opposite side surface, or are scratched from one bottom surface to the other bottom surface of the paper web press-sinking and stirring frame (20) and then taken out, the inserting positions are adjusted to scratch again, all the scratching tracks form parallel line groups which are fully paved on the paper web press-sinking and stirring frame (20), the actions are repeated to scratch and mix the paper pulp, fiber filaments in the paper pulp float above the paper web (10) in the same extending direction, the paper pulp is gradually and stably formed, and the paper web (10) and the paper pulp are kept below the water surface before the paper pulp is formed;
step S34: the operator stably lifts and takes out the paper net sinking and stirring frame (20) by both hands, so that the frame of the paper net (10) synchronously rises and is higher than the water surface of the operation pool (30) under the buoyancy action of water;
step S35: the operator can stably and slowly lift the paper net (10) out of the operation pool (30) by both hands, and obliquely stand the paper net (10) to drain water;
the papermaking raw material comprises pulp board or wet bark; the softened papermaking raw material comprises the following steps of S10: soaking the paper making raw material by using clear water to soften the paper making raw material, or treating the raw material by one or more of the procedures of cooking, rinsing and drying in the sun;
the making of the pulp comprises the steps of S20: decomposing the treated papermaking raw material obtained in the step S10 into paper pulp by using a beating machine;
in the step S20, the stirring time of the pulping machine is prolonged until the length of the fiber is less than 0.5mm;
the parallel line group formed by the palm stroke track is a parallel line group extending left and right along the paper net sinking and beating frame (20), or a parallel line group extending front and back, or a parallel line group extending up and down, or a parallel line group extending horizontally and obliquely at a certain angle, or a parallel line group extending vertically and obliquely at a certain angle.
2. The method of claim 1, wherein the time for soaking in clean water in step S10 is more than one hour.
3. The method for making instant paper pulp capable of being formed many times according to claim 1, wherein in step S20, the rotation speed of the stirring motor applied to the first-forming beating machine is 960 rpm.
4. The method for manufacturing the instant paper pulp capable of being formed for multiple times according to claim 1, wherein the mass ratio of the paper pulp formed for the first time is that of a paper-making raw material: water =1:3000, the mass ratio of the pulp to be reshaped is manual paper making: water =1:3600.
5. the method for making multiple-formation instant pulp according to claim 1, wherein the step of taking out and baking to make hand paper comprises the following steps:
step S40: the paper nets (10) without water drops and filled with wet paper are conveyed to a drying yard, every two paper surfaces of the paper nets (10) are opposite, the tops of the paper nets are connected, the paper nets are placed on the drying yard and obliquely overlapped to form a regular triangle, extension lines of top frames of the two groups of paper nets (10) are parallel to a ecliptic surface, and the paper nets are baked through sun irradiation.
6. The method for making instant paper pulp capable of being formed many times according to claim 5, wherein the baking time is 6-8 hours after being directly exposed to the sun.
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| CN202110087693.2A CN112813727B (en) | 2021-01-22 | 2021-01-22 | Method for making instant paper pulp capable of being formed for multiple times |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000178891A (en) * | 1998-12-11 | 2000-06-27 | Yoshio Sugino | Production of japanese paper |
| CN103572637A (en) * | 2013-10-28 | 2014-02-12 | 定襄县科隆鑫新能源有限公司 | Method for making hemp paper |
| CN104131493A (en) * | 2014-08-01 | 2014-11-05 | 景洪傣乡情文化传播有限公司 | Mian paper, preparation method and application thereof |
| CN105970716A (en) * | 2016-05-20 | 2016-09-28 | 浙江省普瑞科技有限公司 | Method for making manual watercolour paper |
| CN109736125A (en) * | 2019-01-17 | 2019-05-10 | 卢俊超 | A kind of laborsaving fishing paper method |
| CN109957991A (en) * | 2019-03-17 | 2019-07-02 | 曹毅 | A kind of hand papermaking manufacture craft and equipment |
-
2021
- 2021-01-22 CN CN202110087693.2A patent/CN112813727B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000178891A (en) * | 1998-12-11 | 2000-06-27 | Yoshio Sugino | Production of japanese paper |
| CN103572637A (en) * | 2013-10-28 | 2014-02-12 | 定襄县科隆鑫新能源有限公司 | Method for making hemp paper |
| CN104131493A (en) * | 2014-08-01 | 2014-11-05 | 景洪傣乡情文化传播有限公司 | Mian paper, preparation method and application thereof |
| CN105970716A (en) * | 2016-05-20 | 2016-09-28 | 浙江省普瑞科技有限公司 | Method for making manual watercolour paper |
| CN109736125A (en) * | 2019-01-17 | 2019-05-10 | 卢俊超 | A kind of laborsaving fishing paper method |
| CN109957991A (en) * | 2019-03-17 | 2019-07-02 | 曹毅 | A kind of hand papermaking manufacture craft and equipment |
Non-Patent Citations (3)
| Title |
|---|
| 四川德格县和西藏尼木县藏族手工造纸调查;李晓岑;《中国科技史杂志》;20070615;第155页-第164页 * |
| 尼木传统藏纸工艺调查;达尔文·尼夏;《西藏艺术研究》;20131215;第60页-第64页 * |
| 浇纸法与抄纸法——中国大陆保存的两种不同造纸技术体系;李晓岑;《自然辩证法通讯》;20111010;第76页-第82页 * |
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