CN114737260A - Production method of bamboo fiber - Google Patents
Production method of bamboo fiber Download PDFInfo
- Publication number
- CN114737260A CN114737260A CN202210397903.2A CN202210397903A CN114737260A CN 114737260 A CN114737260 A CN 114737260A CN 202210397903 A CN202210397903 A CN 202210397903A CN 114737260 A CN114737260 A CN 114737260A
- Authority
- CN
- China
- Prior art keywords
- bamboo
- bamboo chips
- chips
- softening
- washing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 90
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 90
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 90
- 241001330002 Bambuseae Species 0.000 title claims abstract description 89
- 239000011425 bamboo Substances 0.000 title claims abstract description 89
- 239000000835 fiber Substances 0.000 title claims abstract description 34
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 15
- 238000005406 washing Methods 0.000 claims abstract description 15
- 238000001035 drying Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 6
- PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical compound [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 claims abstract description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 6
- 239000004202 carbamide Substances 0.000 claims abstract description 6
- 235000011121 sodium hydroxide Nutrition 0.000 claims abstract description 5
- 238000010297 mechanical methods and process Methods 0.000 claims abstract description 4
- 238000012216 screening Methods 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims 2
- 239000000428 dust Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 239000003814 drug Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 229920002488 Hemicellulose Polymers 0.000 description 2
- 239000004902 Softening Agent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000209128 Bambusa Species 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 235000018553 tannin Nutrition 0.000 description 1
- 229920001864 tannin Polymers 0.000 description 1
- 239000001648 tannin Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Classifications
-
- 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
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01C—CHEMICAL OR BIOLOGICAL TREATMENT OF NATURAL FILAMENTARY OR FIBROUS MATERIAL TO OBTAIN FILAMENTS OR FIBRES FOR SPINNING; CARBONISING RAGS TO RECOVER ANIMAL FIBRES
- D01C1/00—Treatment of vegetable material
- D01C1/02—Treatment of vegetable material by chemical methods to obtain bast fibres
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molecular Biology (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a production method of bamboo fiber, which comprises the following steps: cutting, namely cutting the bamboo into bamboo chips with the length of 7-30cm and the width of 5-10 cm; screening, treating the bamboo chips cut in the step S1 with a sieve with the aperture of 4-6cm, removing fine bamboo chips and bamboo dust, and removing oversize bamboo chips with the sieve with the aperture of 6.4-6.6 cm; washing, namely washing the bamboo chips screened in the step S2 with water; softening, namely softening the washed bamboo chips by using a solution containing 12-18% of ammonium sulfite, 0-7% of ammonia water, 0-5% of urea and 3-5% of caustic soda by mass; washing, namely washing the softened bamboo chips with water until the pH value is below 7.5; opening, namely extruding the cleaned bamboo chips by a mechanical method to ensure that the bamboo chips have loose structures and bamboo filaments are dispersed; then, dividing and drying. The bamboo fiber produced by the invention has the advantages of consistent length and thickness, soft texture, low dust content and low production cost.
Description
Technical Field
The invention relates to the technical field of bamboo fiber production, in particular to a production method of bamboo fiber.
Background
Bamboo fiber is cellulose fiber extracted from naturally growing bamboo. The bamboo fiber has the characteristics of good air permeability, instant water absorption, moisture permeability, strong wear resistance, good dyeing property and the like, and has the functions of natural antibiosis, bacteriostasis, mite removal, deodorization and ultraviolet resistance. The chemical components of the bamboo fiber mainly comprise cellulose, hemicellulose and lignin, the cellulose, the hemicellulose and the lignin belong to natural high molecular polymers, the total amount accounts for more than 90% of the dry mass of the fiber, and the protein, fat, tannin, pigment, ash and the like exist in the cell wall mostly. Cellulose is the main substance constituting the bamboo fiber and is also of significance as a textile fiber.
In the prior method, bamboo is cut into long bamboo strips with the length of 1.5 to 2.5 meters, and the bamboo strips are soaked and softened in an open pool at normal temperature and normal pressure; then mechanically processing the mixture by adopting a multi-roller opener, and then performing the working procedures of shredding, drying and the like. The main disadvantages are as follows: (1) the softening is an open process, the dosage of the medicine is large, the time is long, the efficiency is low, the uniformity is poor, and pollutants are easy to dissipate and volatilize; (2) the automation degree is low, the manual strength is high, and the production efficiency is low.
Disclosure of Invention
The invention provides a production method of bamboo fiber, aiming at solving the technical problems that: the technical problems of large medicine dosage, long time, non-uniformity and low efficiency in the prior art are solved.
In view of the above problems of the prior art, according to one aspect of the present disclosure, the following technical solutions are adopted in the present invention:
a method for producing bamboo fibers, comprising:
s1: cutting material
Cutting bamboo into pieces with length of 7-30cm and width of 5-10 cm;
s2: screening
Processing the bamboo chips cut in the step S1 by a sieve with the aperture of 4-6cm, and removing fine bamboo chips and bamboo scraps; then processing with a sieve with aperture of 6.4-6.6cm to remove larger bamboo chips;
s3: washing machine
Washing the bamboo chips screened in the step S2 with water;
s4: softening of
Softening the washed bamboo chips by using a solution which simultaneously contains 12-18% of ammonium sulfite, 0-7% of ammonia water, 0-5% of urea and 3-5% of caustic soda by mass;
s5: cleaning of
Washing the bamboo chips softened in the step S4 with water until the pH is lower than 7.5;
s6: opening or shredding
Extruding the bamboo chips cleaned in the step S5 by a mechanical method to ensure that the bamboo chips have loose structures and bamboo filaments are dispersed;
s7: yarn separating device
Processing the bamboo chips loosened in the step S6 by using a silk dividing machine to separate fibers and remove impurities;
s8: drying by baking
And (5) drying the fiber carded in the step (S7) by using a drying device.
In order to better realize the invention, the further technical scheme is as follows:
further, the aperture of the sieve in the step S2 is 5cm and 6.5 cm.
Further, in S3, the bamboo chips are washed with water in an amount of 10 times or more the weight of the bamboo chips.
Further, in the step S4, the softening time is 5-8 h.
Further, in the step S4, the softening temperature is 120-145 ℃.
Further, the step S4 is carried out softening under the closed condition, and the pressure is 0.2-0.5 MPa.
Further, in the step S8, the drying is performed to a degree that the moisture content is reduced to 15% or less.
Compared with the prior art, one of the beneficial effects of the invention is that:
the production method of the raw bamboo fiber adopts a closed softening process, and reduces the dosage of medicines, shortens the softening time and prevents the loss of pollutants by improving the softening temperature and pressure; by adopting a short-sheet process, the softening uniformity is improved, and the continuous production of mechanical equipment can be realized; degree of automation is high, and artifical intensity reduces, and production efficiency improves. The produced bamboo fiber has consistent length and thickness, soft texture and low dust content; the comprehensive production cost is low, and the cost is reduced by 40 percent compared with the cost in the prior art.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
A method for producing bamboo fibers, which comprises the following steps:
s1: cutting bamboo into pieces with length of 7-30cm and width of 5-10 cm.
The invention adopts the short-sheet process to cut the bamboo into short bamboo sheets with the length of 7-30cm, thereby being convenient for conveying and processing and realizing continuous, mechanical and automatic operation; sealing and softening, namely softening the bamboo chips in a sealed pressure reactor, so that the softening temperature can be increased to over 100 ℃, the softening time is shortened by two thirds, and the dosage of the medicine is reduced by 50 percent.
S2: screening, namely treating the bamboo chips cut in the step S1 by using a sieve with the aperture of 4-6cm, and removing fine bamboo chips and bamboo scraps in the bamboo chips; and then removing larger bamboo chips by using a sieve with the aperture of 6.4-6.6 cm.
In step S2, the sieve used for the first time is preferably 5cm in diameter, and the sieve used for the second time is preferably 6.5cm in diameter.
S3: and (4) washing, namely washing the bamboo chips screened in the step S2 by using water.
Wherein, the washing is preferably carried out by adopting water with the weight more than 10 times of that of the bamboo chips.
S4: softening, namely softening the washed bamboo chips by using a solution which simultaneously contains 12-18% of ammonium sulfite, 0-7% of ammonia water, 0-5% of urea and 3-5% of caustic soda by mass fraction.
In the prior art, for long-piece production, bamboos are firstly cut into long bamboo strips with the length of 1.5-2.5 m and then are subjected to subsequent processing, so that the softening and opening method adopted by the application cannot be adopted.
In addition, the softening agent which has weak alkalinity and good softening effect is added by adopting lower caustic soda dosage and adding ammonium sulfite, ammonia water and urea, so that the alkaline corrosion of the bamboo fiber is reduced, the improvement of the fiber strength is facilitated, and the product quality is improved.
Wherein the softening time is preferably 5-8h, the softening temperature is 120-145 ℃, and the softening pressure is preferably 0.2-0.5 MPa.
The softening step is preferably carried out under closed conditions, for example, the softening of bamboo chips is carried out in a closed pressure reactor, so that the softening temperature can be increased, the softening time can be shortened, and the dosage of medicines can be reduced.
S5: cleaning of
Washing the softened bamboo chips of step S4 with water until the pH is lower than 7.5.
S6: opening or shredding
And (4) mechanically extruding the bamboo chips cleaned in the step S5 by adopting a mechanical method, so that the bamboo chips have loose structures and the bamboo filaments are dispersed.
The application adopts a short-chip process technology, the softened bamboo chips can continuously and uniformly enter the extrusion equipment, the uniform extrusion force is ensured, and the opening effect is improved; in addition, the system is beneficial to mechanized and automatic operation of the system.
S7: yarn separating device
And (4) processing the bamboo chips loosened in the step S6 by using a silk dividing machine to separate fibers and remove impurities.
S8: drying the mixture
And (5) drying the fiber carded in the step (S7) by using a drying device.
Wherein, the drying degree should preferably reduce the water content to below 15%.
In conclusion, the production method of the raw bamboo fiber adopts a closed softening process, improves the softening temperature, can reduce the dosage of medicines, shortens the softening time and prevents the loss of pollutants; a short-sheet process is adopted, so that the softening uniformity is improved, and continuous production is realized; the automation degree is high, the manual strength is reduced, and the production efficiency is improved; softening agent with weak alkalinity such as ammonium sulfite, ammonia water and urea and good softening effect is added, so that the alkaline corrosion of the bamboo fiber is reduced, the improvement of the fiber strength is facilitated, and the product quality is improved.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure and claims of this application. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.
Claims (7)
1. A method for producing bamboo fibers, characterized by comprising:
s1: cutting material
Cutting bamboo into pieces with length of 7-30cm and width of 5-10 cm;
s2: screening
Processing the bamboo chips cut in the step S1 by a sieve with the aperture of 4-6cm, and removing fine bamboo chips and bamboo scraps; then processing with a sieve with aperture of 6.4-6.6cm to remove larger bamboo chips;
s3: washing machine
Washing the bamboo chips screened in the step S2 with water;
s4: softening
Softening the washed bamboo chips by using a solution which simultaneously contains 12-18% of ammonium sulfite, 0-7% of ammonia water, 0-5% of urea and 3-5% of caustic soda by mass;
s5: cleaning of
Washing the bamboo chips softened in the step S4 with water until the pH is lower than 7.5;
s6: opening or shredding
Mechanically extruding the bamboo chips cleaned in the step S5 by a mechanical method to ensure that the bamboo chips have loose structures and bamboo filaments are dispersed;
s7: yarn separating device
Processing the bamboo chips loosened in the step S6 by using a silk dividing machine to separate fibers and remove impurities;
s8: drying by baking
And (5) drying the fiber carded in the step (S7) by using a drying device.
2. The method for producing bamboo fibers according to claim 1, wherein the bamboo chips are sieved twice in step S2, the first sieve having a first pore size of 5cm and the second sieve having a second pore size of 6.5 cm.
3. The method for producing bamboo fibers according to claim 1, wherein the washing is performed in S3 with water in an amount of 10 times or more the weight of the bamboo chips.
4. The method for producing bamboo fibers according to claim 1, wherein the softening time in step S4 is 5 to 8 hours.
5. The method for producing bamboo fibers as claimed in claim 1, wherein the softening temperature in step S4 is 120-145 ℃.
6. The method for producing bamboo fibers according to claim 1, wherein the softening in step S4 is performed under a closed condition at a pressure of 0.2 to 0.5 MPa.
7. The method for producing bamboo fibers according to claim 1, wherein the drying is performed in step S8 to reduce the water content to 15% or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210397903.2A CN114737260A (en) | 2022-04-06 | 2022-04-06 | Production method of bamboo fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210397903.2A CN114737260A (en) | 2022-04-06 | 2022-04-06 | Production method of bamboo fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114737260A true CN114737260A (en) | 2022-07-12 |
Family
ID=82281366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210397903.2A Pending CN114737260A (en) | 2022-04-06 | 2022-04-06 | Production method of bamboo fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114737260A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115323553A (en) * | 2022-08-31 | 2022-11-11 | 河南省巴迪瑞体育用品有限公司 | Sportswear fabric with antibacterial, deodorizing and moisture absorbing effects and sportswear |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102433594A (en) * | 2011-09-30 | 2012-05-02 | 常熟市佳懿针纺织品有限公司 | Production method for bamboo fiber |
| CN102959142A (en) * | 2011-03-21 | 2013-03-06 | 美国华益科技有限公司 | Production technology for natural bamboo fibers |
| CN105316770A (en) * | 2014-06-30 | 2016-02-10 | 天津工业大学 | Physical preparation method for bamboo fibers |
| CN105586643A (en) * | 2016-02-29 | 2016-05-18 | 江西省林业科学院 | Method for ultrasonic combined extraction of long and uniform natural bamboo fiber |
| CN107916457A (en) * | 2017-12-26 | 2018-04-17 | 阜阳市卓创科技服务生产力促进中心 | A kind of production method of bamboo fibre |
-
2022
- 2022-04-06 CN CN202210397903.2A patent/CN114737260A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102959142A (en) * | 2011-03-21 | 2013-03-06 | 美国华益科技有限公司 | Production technology for natural bamboo fibers |
| CN102433594A (en) * | 2011-09-30 | 2012-05-02 | 常熟市佳懿针纺织品有限公司 | Production method for bamboo fiber |
| CN105316770A (en) * | 2014-06-30 | 2016-02-10 | 天津工业大学 | Physical preparation method for bamboo fibers |
| CN105586643A (en) * | 2016-02-29 | 2016-05-18 | 江西省林业科学院 | Method for ultrasonic combined extraction of long and uniform natural bamboo fiber |
| CN107916457A (en) * | 2017-12-26 | 2018-04-17 | 阜阳市卓创科技服务生产力促进中心 | A kind of production method of bamboo fibre |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115323553A (en) * | 2022-08-31 | 2022-11-11 | 河南省巴迪瑞体育用品有限公司 | Sportswear fabric with antibacterial, deodorizing and moisture absorbing effects and sportswear |
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Application publication date: 20220712 |
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