CN113584601B - Preparation method of oriented crimped bamboo fibers - Google Patents
Preparation method of oriented crimped bamboo fibers Download PDFInfo
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- CN113584601B CN113584601B CN202110879874.9A CN202110879874A CN113584601B CN 113584601 B CN113584601 B CN 113584601B CN 202110879874 A CN202110879874 A CN 202110879874A CN 113584601 B CN113584601 B CN 113584601B
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01B—MECHANICAL TREATMENT OF NATURAL FIBROUS OR FILAMENTARY MATERIAL TO OBTAIN FIBRES OF FILAMENTS, e.g. FOR SPINNING
- D01B1/00—Mechanical separation of fibres from plant material, e.g. seeds, leaves, stalks
- D01B1/10—Separating vegetable fibres from stalks or leaves
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/02—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by spraying or projecting
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
- D06B15/09—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by jets of gases
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Abstract
The invention discloses a preparation method of oriented crimped bamboo fibers, which comprises the following steps: the method comprises the steps of firstly, putting rough-processed bamboo fibers into steam flash explosion equipment for weak acid explosion treatment, putting the bamboo fibers after explosion into an opener for scattering, enabling the bamboo fibers to be uniformly dispersed on a conveyor belt, rolling the bamboo fibers to be attached to the conveyor belt, then continuously spraying a polar solvent on the surfaces of the bamboo fibers, heating the bottoms of the bamboo fibers by warm air in the process of spraying the polar solvent, then, carrying out microwave heating on the bamboo fibers by adopting a microwave heating device, enabling the bamboo fibers to be rapidly dried, so that due to the fact that the polar solvents on the upper surfaces and the two ends of the bamboo fibers are instantly lost, the two ends of the bamboo fibers are curled, and finally, the directional curled bamboo fibers are obtained. The invention can prepare the directional curling bamboo fiber material with proper curling number, moderate curling degree and higher curling rate, and can meet the development requirements of new materials and new technologies of bamboo fiber paper, fabrics, composite bamboo fiber felts and the like.
Description
Technical Field
The invention belongs to the technical field of bamboo fibers, and particularly relates to a preparation method of oriented crimped bamboo fibers.
Background
Fiber crimp refers to the bending of the fiber in the straight direction. The fiber crimping influences the bonding performance among the fibers, the fibers with good crimping performance can improve the cohesive force of the fibers, improve the tensile strength and the bursting strength of the fiber paper, and improve the bulkiness, porosity, softness, elasticity and the like of the fiber fabric or the composite material fiber felt, and the manufactured fabric or the composite material fiber felt has plump and soft hand feeling; however, too much crimp may cause entanglement and felting of the fibers during processing, and also may cause difficulty in needling, resulting in excessive puncture of the fibers and poor dimensional stability of the nonwoven fabric.
The natural bamboo fiber with high specific strength and specific modulus is prepared by separating bamboo, and is called as natural glass fiber, the longitudinal tensile strength of the bamboo single fiber is 1.20-1.93GPa, and the longitudinal elastic modulus is 17.5-40.8 GPa. Generally, bamboo fibers are kept in a straight state in bamboo materials, the natural bamboo fibers are obtained through separation due to the limitation of a bamboo fiber separation technology, the natural bamboo fibers are in a bundle shape, the bamboo fibers are called bamboo fibers for short, the structural state, chemical components and the like of the bamboo fibers are greatly different, the daily seen bamboo fibers show the shape characteristics of curling or turning, and the curling degree and the mechanical property of the bamboo fibers are changed to different degrees in different temperature and humidity environments. With the development of new materials and new technologies of bamboo fiber paper, fabrics, composite bamboo fiber felts and the like, the development of bamboo fiber materials with proper curling number, curling degree and high curling rate is urgently needed. However, there are few reports about the preparation method and process of bamboo fiber curling, so it is important to develop a preparation method of oriented curling bamboo fiber.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a preparation method of oriented crimped bamboo fibers aiming at the defects of the prior art. The method comprises the steps of taking bamboo fibers as raw materials, changing the separation degree of the bamboo fibers and the surface structure and components of the bamboo fibers by blasting sizing, then carrying out polar solvent treatment on the bamboo fibers, changing the surface polarity and stress of the bamboo fibers, and changing the evaporation rates of solvents at different positions of the bamboo fibers by the steps of heating the bamboo fibers by warm air and quickly drying the bamboo fibers by microwaves to control the drying shrinkage stress of the bamboo fibers and realize the directional curling of the bamboo fibers at different degrees.
In order to solve the technical problems, the invention adopts the technical scheme that: a method for preparing oriented crimped bamboo fibers is characterized by comprising the following steps:
step one, blasting and sizing bamboo fibers: the method comprises the following steps of (1) mixing rough processed bamboo fibers with a weak acid solvent according to a mass ratio of 100: 15, putting the bamboo fibers into steam flash explosion equipment, treating for 60-100 s under the condition that the steam pressure is 0.5-0.8 MPa to obtain the bamboo fibers after explosion, and then adjusting the pH value of the bamboo fibers after explosion to be neutral;
step two, bamboo fiber opening and spraying: putting the bamboo fibers obtained in the step one after blasting into an opener for scattering, then uniformly dispersing and placing the scattered bamboo fibers on a conveyor belt, controlling the light transmittance of the bamboo fibers to be 20% -30%, rolling the bamboo fibers to enable the bamboo fibers to be attached to the conveyor belt, and finally continuously spraying a polar solvent on the surfaces of the bamboo fibers;
step three, heating the bamboo fiber bottom by warm air: in the process of spraying the polar solvent on the bamboo fibers in the second step, carrying out warm air heating treatment on the bottoms of the bamboo fibers to promote the polar solvent to migrate to the upper surfaces and two ends of the bamboo fibers, wherein the air speed is 1.6-3.3 m/s, and the temperature is controlled to be 30-65 ℃;
step four, microwave quick-drying and curling of bamboo fibers: and (4) feeding the bamboo fibers blown in the third step on the conveyor belt into a microwave heating device for microwave heating, and finally obtaining the directional crimped bamboo fibers.
The microwave heating device enables the bamboo fibers to be quickly dried, so that the upper surfaces of the bamboo fibers shrink and the two ends of the bamboo fibers curl due to the fact that polar solvents on the upper surfaces and the two ends of the bamboo fibers are instantly lost.
The preparation method of the directional crimped bamboo fibers is characterized in that the roughly processed bamboo fibers in the first step are natural bamboo fibers with the length not less than 0.9cm, which are obtained by rolling, hammering, opening and carding bamboo materials. The bamboo is any bamboo species.
The preparation method of the oriented crimped bamboo fiber is characterized in that in the step one, the bamboo fiber after blasting is in a state of combining 3-6 single fibers, and the hemicellulose content of the bamboo fiber after blasting is 15% -25%.
The preparation method of the oriented crimped bamboo fiber is characterized in that in the first step, the weak acid solvent is glacial acetic acid, and the pH value of the glacial acetic acid is 6-6.5.
The preparation method of the oriented crimped bamboo fiber is characterized in that in the second step, the polar solvent is petroleum ether with the boiling point of 40-80 ℃, and the amount of the petroleum ether is 5-10% of the mass of the bamboo fiber after blasting.
The preparation method of the oriented crimped bamboo fiber is characterized in that the microwave heating in the fourth step is carried out at a microwave frequency of 2450MHz and for a microwave heating time of 15s-30 s.
The preparation method of the oriented crimped bamboo fiber is characterized in that petroleum ether is cooled and recovered in the process of drying the bamboo fiber by microwave heating in the fourth step.
Compared with the prior art, the invention has the following advantages:
1. the invention carries out polar solvent treatment on the bamboo fiber, changes the surface polarity and stress of the bamboo fiber; the directional curling bamboo fiber material with higher curling rate, proper curling number and curling degree is prepared by changing the fiber separation degree, the fiber surface structure and components, the fiber drying shrinkage rate and the like, and the development requirements of new materials and new technologies of bamboo fiber paper, fabrics, composite bamboo fiber felts and the like are met.
2. According to the invention, steam flash explosion equipment is adopted to combine weak acid conditions to destroy the combination state and surface morphology of the bamboo fibers, so that the bamboo fibers are separated into a state of combining 3-6 single fibers, hemicellulose is degraded, the surface of the bamboo fibers after explosion is relatively poor in smoothness, and the symmetrical structure of the cross section is destroyed, so that the subsequent curling of the bamboo fibers is facilitated.
3. According to the invention, the bottom of the bamboo fiber sprayed with the polar solvent is blown with warm air and is heated, so that the polar solvent is promoted to migrate to the upper surface and two ends of the bamboo fiber, the bottom of the bamboo fiber is dried with the non-polar solvent, and then the bamboo fiber is subjected to microwave heating by adopting a microwave heating device, so that the bamboo fiber is rapidly dried, and thus the upper surface of the bamboo fiber is shrunk due to the fact that the polar solvent on the upper surface and the polar solvent on the two ends of the bamboo fiber are instantaneously lost. The directional curling of the bamboo fibers is realized by utilizing the drying shrinkage stress of the natural bamboo fibers, so that the friction force and the cohesive force among the bamboo fibers are increased, and the fluffiness and the elasticity of the bamboo fibers are improved.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
FIG. 1 is a diagram showing a process of morphological change of bamboo fibers for preparing oriented crimped bamboo fibers according to the present invention.
Detailed Description
Example 1
The preparation method of the oriented crimped bamboo fiber of the embodiment comprises the following steps:
step one, blasting and sizing bamboo fibers: mixing the rough processed bamboo fiber with glacial acetic acid with pH of 6 according to a mass ratio of 100: 15, putting the bamboo fibers into steam flash explosion equipment, treating for 100s under the condition that the steam pressure is 0.5MPa to obtain the bamboo fibers after explosion, and then adjusting the pH value of the bamboo fibers after explosion to be neutral; the roughly processed bamboo fibers are moso bamboo fibers with the length not less than 0.9cm, which are obtained by rolling, hammering, opening and carding bamboo, the bamboo fibers after blasting are in a state of combining 3-6 single fibers, and the hemicellulose content of the bamboo fibers after blasting is 15% -25%;
the bamboo fiber with the hemicellulose content of 15-25% after blasting has high dispersity and good softness, and is easy to curl;
step two, bamboo fiber opening and spraying: putting the bamboo fibers obtained in the step one after blasting into an opener for scattering, then uniformly putting the scattered bamboo fibers on a conveyer belt, controlling the light transmittance of the distribution of the bamboo fibers to be 20%, then rolling the bamboo fibers to enable the bamboo fibers to be attached to the conveyer belt, and finally continuously spraying a polar solvent on the surfaces of the bamboo fibers; the polar solvent is petroleum ether with the boiling point of 40 ℃, and the mass of the petroleum ether is 5% of that of the bamboo fiber after the explosion; the bamboo fibers after blasting are further scattered in the opening machine, so that the separation degree of the bamboo fibers can be further improved, and the subsequent preparation of the oriented crimped bamboo fibers is facilitated;
step three, heating the bamboo fiber bottom by warm air: in the process of spraying the polar solvent on the bamboo fibers in the second step, carrying out warm air heating treatment on the bottoms of the bamboo fibers to promote the polar solvent to migrate to the upper surfaces and two ends of the bamboo fibers, wherein the wind speed is 1.6m/s, and the temperature is controlled to be 30 ℃;
step four, microwave quick-drying and curling of bamboo fibers: and (3) feeding the bamboo fiber blown in the third step on the conveyor belt into a microwave heating device for microwave heating, wherein the microwave frequency of the microwave heating is 2450MHz, and the microwave time is 15s, so that the bamboo fiber is quickly dried, the upper surface of the bamboo fiber is shrunk due to the instantaneous loss of polar solvents on the upper surface and two ends of the bamboo fiber, and the directional crimped bamboo fiber is finally prepared.
Fig. 1 is a diagram of a bamboo fiber form change process for preparing the oriented crimped bamboo fibers in this embodiment, which is a schematic form change process for extracting a plurality of single bamboo fibers from the above steps one to four, and it can be seen from the diagram that the bamboo fibers roughly processed are gradually changed into the oriented crimped bamboo fibers through the preparation process of this embodiment.
The properties of the oriented crimped bamboo fiber prepared in the example are as follows: bamboo fiber bundles with the length of 50mm-250mm, the fineness of 20 μm-80 μm and the tensile strength of 300 MPa; the crimp index of each centimeter of long fiber is 2.3-5.8, and the crimp performance of the bamboo fiber is tested according to GB/T14338-2008 test method for crimp performance of short chemical fiber: the crimp shrinkage is 60-80%, the crimp modulus is 50-65%, the crimp stability is 80-95%, the shrinkage elongation is 50-70%, and the elastic recovery is 40-60%.
Example 2
The preparation method of the oriented crimped bamboo fiber of the embodiment comprises the following steps:
step one, blasting and sizing bamboo fibers: mixing the roughly processed bamboo fiber with glacial acetic acid with the pH value of 6.2 according to the mass ratio of 100: 15, putting the bamboo fibers into steam flash explosion equipment, treating for 80s under the condition that the steam pressure is 0.7MPa to obtain the bamboo fibers after explosion, and then adjusting the pH value of the bamboo fibers after explosion to be neutral; the roughly processed bamboo fibers are Sagittaria sagittifolia fibers with the length not less than 0.9cm, which are obtained by rolling, hammering, opening and carding bamboo, the bamboo fibers after blasting are in a state of combining 3-6 single fibers, and the hemicellulose content of the bamboo fibers after blasting is 20% -25%; the bamboo fiber with the hemicellulose content of 15-25% after blasting has high dispersity and good softness, and is more beneficial to the subsequent preparation of the oriented crimped bamboo fiber.
Step two, bamboo fiber opening and spraying: putting the bamboo fibers obtained in the step one after blasting into an opener for scattering, then uniformly putting the scattered bamboo fibers on a conveyer belt, controlling the light transmittance of the bamboo fibers to be 25%, then rolling the bamboo fibers to enable the bamboo fibers to be attached to the conveyer belt, and finally continuously spraying a polar solvent on the surfaces of the bamboo fibers; the polar solvent is petroleum ether with the boiling point of 60 ℃, and the mass of the polar solvent is 7% of that of the bamboo fiber after blasting; the bamboo fibers after blasting are further scattered in the opening machine, so that the separation degree of the bamboo fibers can be further improved, and the subsequent preparation of the oriented crimped bamboo fibers is facilitated;
step three, heating the bamboo fiber bottom by warm air: in the process of spraying the polar solvent on the bamboo fibers in the second step, carrying out warm air heating treatment on the bottoms of the bamboo fibers to promote the polar solvent to migrate to the upper surfaces and two ends of the bamboo fibers, wherein the wind speed is 2.5m/s, and the temperature is controlled to be 50 ℃;
step four, microwave quick-drying and curling of bamboo fibers: and (3) feeding the bamboo fibers blown in the third step on the conveyor belt into a microwave heating device for microwave heating, wherein the microwave frequency of the microwave heating is 2450MHz, the microwave time is 22s, and petroleum ether is recovered in the microwave heating process to finally prepare the directional crimped bamboo fibers.
The properties of the oriented crimped bamboo fiber prepared in the example are as follows: bamboo fiber bundles with the length of 50mm-250mm, the fineness of 20 μm-80 μm and the tensile strength of 300 MPa; the crimp index of each centimeter of long fiber is 2.3-5.8, and the crimp performance of the bamboo fiber is tested according to GB/T14338-2008 test method for crimp performance of short chemical fiber: the crimp shrinkage is 60-80%, the crimp modulus is 50-65%, the crimp stability is 80-95%, the shrinkage elongation is 50-70%, and the elastic recovery is 40-60%.
Example 3
The preparation method of the oriented crimped bamboo fiber of the embodiment comprises the following steps:
step one, blasting and sizing bamboo fibers: mixing the roughly processed bamboo fiber with glacial acetic acid with the pH value of 6.5 according to the mass ratio of 100: 15, putting the mixture into steam flash explosion equipment, treating for 60s under the condition that the steam pressure is 0.8MPa to obtain the bamboo fibers after explosion, and then adjusting the pH value of the bamboo fibers after explosion to be neutral; the roughly processed bamboo fibers are moso bamboo fibers with the length not less than 0.9cm, which are obtained by rolling, hammering, opening and carding bamboo, the bamboo fibers after blasting are in a state of combining 3-6 single fibers, and the hemicellulose content of the bamboo fibers after blasting is 15% -25%; the bamboo fiber with the hemicellulose content of 15-25% after blasting has high dispersity and good softness, and is more beneficial to the subsequent preparation of the oriented crimped bamboo fiber.
Step two, bamboo fiber opening and spraying: putting the bamboo fibers obtained in the step one after blasting into an opener for scattering, then uniformly putting the scattered bamboo fibers on a conveyer belt, controlling the light transmittance of the bamboo fibers to be 30%, then rolling the bamboo fibers to enable the bamboo fibers to be attached to the conveyer belt, and finally continuously spraying a polar solvent on the surfaces of the bamboo fibers; the polar solvent is petroleum ether with the boiling point of 80 ℃, and the mass of the polar solvent is 10% of that of the bamboo fiber after blasting; the bamboo fibers after blasting are further scattered in the opening machine, so that the separation degree of the bamboo fibers can be further improved, and the subsequent preparation of the oriented crimped bamboo fibers is facilitated;
step three, heating the bamboo fiber bottom by warm air: in the process of spraying the polar solvent on the bamboo fibers in the second step, carrying out warm air heating treatment on the bottoms of the bamboo fibers to promote the polar solvent to migrate to the upper surfaces and two ends of the bamboo fibers, wherein the air speed is 3.3m/s, and the temperature is controlled to be 65 ℃;
step four, microwave quick-drying and curling of bamboo fibers: and (3) feeding the bamboo fibers blown in the third step on the conveyor belt into a microwave heating device for microwave heating, wherein the microwave frequency of the microwave heating is 2450MHz, and the microwave time is 30s, so that the bamboo fibers are quickly dried, the upper surfaces of the bamboo fibers shrink due to the instantaneous loss of polar solvents on the upper surfaces and at two ends of the bamboo fibers, and the two ends of the bamboo fibers are curled, thereby finally obtaining the directional curled bamboo fibers.
The properties of the oriented crimped bamboo fiber prepared in the example are as follows: bamboo fiber bundles with the length of 50mm-250mm, the fineness of 20 μm-80 μm and the tensile strength of 300 MPa; the crimp index of each cm of long fiber is 2.3-5.8, and the crimp performance of the bamboo fiber is tested according to GB/T14338-2008 & lt & gt test method for crimp performance of short chemical fiber): the crimp shrinkage is 60-80%, the crimp modulus is 50-65%, the crimp stability is 80-95%, the shrinkage elongation is 50-70%, and the elastic recovery is 40-60%.
In examples 1 to 3, the conveyor and the microwave heating device are both prior art and commercially available mature products such as: the air heater is located the bottom of transmission band and is facing to the transmission band and blow, and the transmission band is mesh structure's transmission band, can ventilate. The conveyor belt can adopt a tunnel oven conveyor, and the microwave heating device can adopt a tunnel type microwave heating device.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent changes of the above embodiments according to the technical essence of the invention are still within the protection scope of the technical solution of the invention.
Claims (5)
1. A method for preparing oriented crimped bamboo fibers is characterized by comprising the following steps:
step one, blasting and sizing bamboo fibers: the method comprises the following steps of (1) mixing rough processed bamboo fibers with a weak acid solvent according to a mass ratio of 100: 15, putting the bamboo fibers into steam flash explosion equipment, treating for 60-100 s under the condition that the steam pressure is 0.5-0.8 MPa to obtain the bamboo fibers after explosion, and then adjusting the pH value of the bamboo fibers after explosion to be neutral;
the roughly processed bamboo fibers are natural bamboo fibers with the length not less than 0.9cm, which are obtained by rolling, hammering, opening and carding bamboo; the weak acid solvent is glacial acetic acid, and the pH of the glacial acetic acid is 6-6.5;
step two, bamboo fiber opening and spraying: putting the bamboo fibers obtained in the step one after blasting into an opener for scattering, then uniformly dispersing and placing the scattered bamboo fibers on a conveyor belt, controlling the light transmittance of the bamboo fibers to be 20% -30%, rolling the bamboo fibers to enable the bamboo fibers to be attached to the conveyor belt, and finally continuously spraying a polar solvent on the surfaces of the bamboo fibers; the polar solvent is petroleum ether with the boiling point of 40-80 ℃;
step three, heating the bamboo fiber bottom by warm air: in the process of spraying the polar solvent on the bamboo fibers in the second step, carrying out warm air heating treatment on the bottoms of the bamboo fibers to promote the polar solvent to migrate to the upper surfaces and two ends of the bamboo fibers, wherein the air speed is 1.6-3.3 m/s, and the temperature is controlled to be 30-65 ℃;
step four, microwave quick-drying and curling of bamboo fibers: and (4) feeding the bamboo fibers blown in the third step on the conveyor belt into a microwave heating device for microwave heating, and finally obtaining the directional crimped bamboo fibers.
2. The method for preparing oriented crimped bamboo fibers according to claim 1, wherein in the first step, the bamboo fibers after blasting are in a state of being combined by 3-6 single fibers, and the hemicellulose content of the bamboo fibers after blasting is 15% -25%.
3. The method for preparing directional crimped bamboo fibers according to claim 1, wherein the amount of petroleum ether used in the second step is 5-10% of the mass of the bamboo fibers after blasting.
4. The method as claimed in claim 1, wherein the microwave heating is carried out at 2450MHz for 15-30 s.
5. The method for preparing directional crimped bamboo fibers according to claim 3, wherein petroleum ether is cooled and recovered in the process of drying the bamboo fibers by microwave heating in the fourth step.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102959142B (en) * | 2011-03-21 | 2016-01-06 | 张毅 | The production technology of natural bamboo fibres |
| CN102517642B (en) * | 2011-11-25 | 2014-07-30 | 浙江农林大学 | Non-pollution production method of bamboo fibers |
| CN102560695B (en) * | 2011-12-30 | 2016-09-28 | 湖南欧林雅服饰有限责任公司 | A kind of physical preparation method of natural bamboo fibres |
| DE102013001262A1 (en) * | 2013-01-26 | 2014-07-31 | Spengler Technology UG (haftungsbeschränkt) | Bamboo fibers obtainable by wetting bamboo poles, crushing wetted poles, treating obtained bamboo material with alkaline agent, cutting material, washing and drying bamboo fibers and heating using microwave, useful e.g. for producing fleece |
| CN102995138B (en) * | 2012-10-25 | 2014-08-13 | 郭荣才 | Bamboo fiber material for towels |
| CN105586643B (en) * | 2016-02-29 | 2018-02-23 | 江西省林业科学院 | A kind of method of the long neat type natural bamboo fibres of ultrasonic in combination extraction |
| CN108677580A (en) * | 2018-05-13 | 2018-10-19 | 施文杰 | A kind of bamboo-plastic combined preparation method with bamboo fibre |
| CN108823645A (en) * | 2018-08-21 | 2018-11-16 | 随月丽 | A kind of preparation method of high-strength bamboo fiber |
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Effective date of registration: 20230425 Address after: 310023 No. 399 stay Road, Xihu District, Zhejiang, Hangzhou Patentee after: Zhejiang Academy of Forestry Patentee after: Zhejiang Forest Biotechnology Co.,Ltd. Address before: 310023 No. 399 stay Road, Xihu District, Zhejiang, Hangzhou Patentee before: Zhejiang Academy of Forestry |