CN1811019A - Natural bamboo fiber and its production process and application - Google Patents
Natural bamboo fiber and its production process and application Download PDFInfo
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Abstract
The present invention discloses one kind of spinnable natural bamboo fiber and its production process and application. The natural bamboo fiber has a fineness of 1600-1900 counts and a length of that between bamboo joints. The production process includes the steps of the pre-treatment of bamboo, the bamboo fiber treating and the post-treatment of bamboo fiber. The step of bamboo fiber treating includes soaking, steaming at normal pressure, rolling, neutralizing and water washing, enzyme treating with amylase, the secondary steaming and the secondary water washing. The natural bamboo fiber produced based on the process of the present invention is superior in fineness, strength, etc. and can meet the requirement of textile in producing high quality yarn and fabric.
Description
Technical field
The present invention relates to bamboo fibre and processing method thereof, and the application of described bamboo fibre, particularly, the present invention relates to a kind of natural bamboo fibres and processing method thereof of spinnable, high fineness, and the application of described bamboo fibre, particularly yarn and the fabric of producing by described bamboo fibre.
Background technology
In recent years, along with the raising of living standards of the people, on household articles and dress ornament, pursuing comfortable, back to nature has become new fashion.In textile industry, textile fabric is divided into natural fabric and chemical fibre two classes, though there are shortcomings such as comfortableness is poor, gas permeability difference in advantage such as that the lining of being made by chemical fibre has is wear-resisting, well-pressed, be difficult for frilling.On the contrary, the fabric of being made by natural fabric but has good moisture transported permeable, and is comfortable and easy to wear, therefore is more vulnerable to modern trend personage's favor.Normally used natural fabric has cotton, fiber crops, hair, silk four big classes in the textile industry, these natural fabrics are from animal or plant, but natural fabric, especially the natural fabric of animal origin, be subjected to the restriction of conditions such as resource-constrained easily, therefore research and develop natural fabric new, that enrich in the source and have great importance.
Bamboo is that a kind of growth cycle is short, output is high, the perennial plant of easy cultivation.China has abundant bamboo resource, no matter is first of the cultivated area or the kind Jun Ju Asian-Pacific area of bamboo.The main bamboo class of China have approximately 40 belong to, kind surplus 400, more than 700 ten thousand hectares of bamboo grove areas account for about 35% of world's bamboo grove area, account for more than 58% of the Asian-Pacific area.
The intensive lines of bamboo is type linearly, and toughness and ABRASION RESISTANCE are all very strong, and unique resilience is arranged, and vertical and horizontal intensity is also stronger; The cross section of bamboo molecule also has been covered with big and small oval-shaped hole, can and evaporate a large amount of moisture in transient absorption.Just because of these design features and the character of bamboo self, make the bamboo fibre that is processed into by bamboo act on the plurality of advantages of bamboo.Such as: bamboo fibre can be degraded, degraded back to environment without any pollution, again can the complete regression nature, so this fiber is called as Recycled Fibers; Be cellular in the bamboo fibre cross section, so the bamboo fibre wet transmitting performance is fabulous, therefore is called by " fiber that can breathe "; Bamboo fibre also has good resilience and ABRASION RESISTANCE; In addition, bamboo fibre also has natural antibacterial and bacteriostasis property.All these advantages make bamboo fibre become the 5th kind of natural fabric with great potential after cotton, fiber crops, hair, silk four big natural fabrics.Characteristics such as the lining of being made by natural bamboo fibres has that lightweight is well-pressed, moisture absorption strong, ventilative comfortable, salubrious pleasantly cool, good luster, dyeing color are beautiful, and have health cares such as uvioresistant, antibacterial, deodorization, gas defence, especially summer dress makes the people feel nice and cool especially, and therefore the lining of being made by natural bamboo fibres is expected to become the desirable lining that fabricator spins class (as towel by class, bedding etc.), knitting class (as T-shirt, underwear, socks etc.), shirt, sportswear etc.
Bamboo fibre in the market has following two classes: the one, and the regenerated fiber with bamboo pulp is produced is commonly referred to bamboo pulp fiber; The 2nd, the fiber through special process directly extracts from bamboo is called bamboo fiber.Because bamboo fiber has more superior performance at aspects such as hygroscopicity, gas permeability, spinnabilitys, therefore studying the spinnability bamboo fiber has tangible economic benefit and good social benefit.
At present, bamboo is processed into the spinnability bamboo fiber and generally experiences pretreatment procedure, decomposition process, fiberizing operation and postprocessing working procedures.There are several pieces of patent documentations to put down in writing the processing method of spinnability bamboo fiber in the prior art, but rarely has record about indexs such as the fineness of bamboo fibre, intensity, only to disclose average fineness be bamboo fibre and processing method thereof about 1687 public to CN 1208505C, but those of ordinary skill in the art is difficult to implement this invention according to the disclosed content of specification, and the digesting technoloy that relates in the method need carry out in pressure vessel, is inconvenient to implement.Relate to the enzyme treatment process in the processing method of the bamboo fibre of Chinese patent CN1621580A, CN 1624212A and CN 1600907A record, but do not disclose the kind of enzyme among the CN 1621580A; CN 1624212A and CN 1600907A have put down in writing the aqueous solution of use phytoenzyme bacterium (being specially straw enzyme bacterium) and have handled ring, but these documents all clearly do not disclose purpose, the concrete operations condition of enzyme treatment process and the technique effect that is reached, and the technology of relevant application enzyme process for producing bamboo fibre is also very immature.Therefore, how former bamboo is processed into and all can satisfies the spinnability bamboo fiber that weaving requires in each side such as fineness, intensity and still have many technical barriers to need to be resolved hurrily.
Need to prove that in fact natural bamboo fibres of the present invention is meant by former bamboo and directly processes and next natural bamboo fiber.
Summary of the invention
The object of the present invention is to provide a kind of natural bamboo fibres, 1600～1900 public of its fineness, length is natural slub length, for example 20～30 centimetres, but except the bamboo fibres that fineness is 1687 public affairs props up.Preferred 1700～1900 public of the fineness of described bamboo fibre.Described bamboo fibre is easy to make, and is the textile raw material with high fineness, high-intensity environment-friendly type, function admirable.
Another object of the present invention is the deficiency that exists at above-mentioned bamboo fiber processing method, and a kind of bamboo fiber processing method is provided, and bamboo fiber processing method of the present invention comprises former bamboo pretreatment procedure, bamboo fiber processing operation and bamboo fibre postprocessing working procedures.
In the bamboo fiber processing method of the present invention, described former bamboo pretreatment procedure comprises ring, goes operations such as bamboo spring and system bamboo chip.Described bamboo fibre pretreatment procedure can and use conventional equipment to carry out according to methods known in the art.
In the bamboo fiber processing method of the present invention, described bamboo fiber processing operation comprises boiling, presses the washing of pricking, neutralize, enzyme processing, secondary boiled and secondary water washing operation.In order to make bamboo chip softening sooner, described bamboo fiber processing operation can also add before cooking process soaks operation.
In the bamboo fiber processing method of the present invention, described bamboo fibre postprocessing working procedures comprises branch silk, dehydration, softness, wet comb, oven dry, combing operation.In order to make the bamboo fibre color and luster that makes pure white, can also after minute wire process, add bleaching process in the described bamboo fibre postprocessing working procedures.Described bamboo fibre postprocessing working procedures can and use conventional equipment to carry out according to methods known in the art.
Particularly, in the bamboo fiber processing method of the present invention, the bamboo chip that obtains by former bamboo pretreatment procedure prick through immersion, boiling, pressure, in and behind the washing step, obtain the bamboo fiber bundle fibre; Through enzyme processing, secondary boiled and secondary water washing operation, further remove the compositions such as pectin in the bamboo fiber bundle fibre afterwards, described bamboo fiber bundle fibre is segmented once more, obtain thinner bamboo fiber bundle fibre.Cooking process described in the described bamboo fiber processing operation carries out under normal pressure, and the enzyme that uses in the described enzyme treatment process is amylase.
The concrete steps of described bamboo fiber processing operation are:
(1) soaks operation, the bamboo chip that makes was soaked 8～11 hours in the neutral aqueous solution that contains 0.01%～0.05% (w/w) bleeding agent;
(2) cooking process, it is the boiling 3.0～3.5 hours under normal pressure in cooking liquor of the bamboo chip that obtains in the operation of the bamboo chip that former bamboo pretreatment procedure is obtained or soak, wherein said cooking liquor is the aqueous solution of caustic soda (NaOH), wherein contain bleeding agent, the concentration of bleeding agent is about 1% (w/w), described caustic soda can use solid caustic soda or liquid caustic soda, the addition of caustic soda is to make the pH of cooking liquor more than 12 or 12, boiling temperature is 95～100 ℃, the volume ratio of cooking liquor and bamboo chip 2: 1～4: 1;
(3) press mutual aid system devised for poor peasants preface, adopt the pressure bundle machine of routine use that well-done bamboo chip band hydraulic pressure is pricked, and at the bamboo chip of pressing after bundle machine rear portion water spray washing is pressed bundle, wherein, maintenance bamboo chip temperature is 70～80 ℃ in the pressure bundle process;
(4) in and washing step, use weak acid liquid to carry out neutralisation treatment in the binding with pressing the cotton-shaped thin slice that obtains in the bundle process to press at second, make the pH value of the cotton-shaped thin slice in neutralization back be approximately 7.5, the cotton-shaped thin slice secondary band hydraulic pressure after will neutralizing is subsequently pricked 2～3 times, obtains the bamboo fiber bundle fibre;
(5) enzyme treatment process, under the room temperature, the bamboo fiber bundle fibre that above-mentioned operation is obtained soaked enzymolysis 20～120 minutes in amylase solution; With
(6) secondary boiled and washing step, to be immersed in the bamboo fiber bundle fibre that contains in the enzyme solutions about 80 ℃ of boilings 1 hour, with the bamboo fiber bundle fibre after the circulating water washing boiling, the fine pH value of the bamboo fiber bundle after the washing is 6.5～7.0, obtains thinner bamboo fiber bundle fibre then.
The following bamboo fibre postprocessing working procedures of the fine process of bamboo fiber bundle that is obtained by secondary boiled and washing step finally is met the bamboo fibre single fiber that weaving needs.
More specifically, each operation of bamboo fiber processing method of the present invention can adopt following process conditions:
(1) former bamboo pretreatment procedure
Described former bamboo pretreatment procedure comprises ring, goes operations such as bamboo spring and system bamboo chip, and former bamboo pretreatment procedure of the present invention can adopt method well known in the art to finish.
The employed raw material bamboo of method of the present invention can be selected the bamboo of each kind, as mao bamboon, green bamboo, hill bamboo etc., and preferred mao bamboon and little mangosteen; Consider mao bamboon aboundresources, be easy to obtain, therefore most preferably be mao bamboon.Be 2 months～2 years the growth period of selected bamboo, preferred 1～2 year.Consider materials such as containing more pectin in close one section thick bamboo tube of root, intractability is big, so preferably will discard near the about 20 centimetres ring of root in the practical operation.
The wherein said ring operation of going can adopt manual method or mechanical means that former bamboo debranching is saved, removes taper, makes the thick bamboo tube of nature slub length; Described bamboo spring and the system bamboo chip operation of going is by existing simple tool in manual operations or the application prior art, as hit the bamboo machine with above-mentioned thick bamboo tube fragmentation, remove bamboo the inwall not film of bamboo-containing fiber, i.e. bamboo spring, and make the bamboo chip of certain width, the width of bamboo chip is advisable with 2～3 centimetres.
(2) bamboo fiber processing operation
Described bamboo fiber processing operation comprises boiling, presses the washing of pricking, neutralize, enzyme processing, secondary boiled and secondary water washing operation.In order to make bamboo chip softening sooner, described bamboo fiber processing operation can also add before cooking process soaks operation.
In the bamboo fiber processing operation of the present invention, described immersion operation is that the bamboo chip that will make is immersed in the neutral aqueous solution that contains 0.01%～0.05% (w/w) bleeding agent and soaks a period of time, its purpose is to quicken the softening of bamboo chip, makes following operation smooth.Wherein said bleeding agent can be the conventional bleeding agent that uses, fatty alcohol-polyoxyethylene ether (JFC), 1 for example, 2-di-n-butyl naphthalene-6-sodium sulfonate (BX), poly alkyl alcohol oxyalkyl ether (SF) and two or more mixture arbitrarily wherein, preferred JFC-BX mixed type bleeding agent, described soak time is 8～11 hours;
Described cooking process be the bamboo chip that obtains in the operation of the bamboo chip that former bamboo pretreatment procedure is obtained or soak in cooking liquor under normal pressure boiling a period of time, its purpose is to dissolve the materials such as pectin that contain in the bamboo chip.Wherein said cooking liquor is the aqueous solution of caustic soda (NaOH), wherein contain bleeding agent, the concentration of bleeding agent is about 1% (w/w), described caustic soda can use solid caustic soda or liquid caustic soda, the addition of caustic soda is to make the pH of cooking liquor more than 12 or 12, described bleeding agent can be the conventional bleeding agent that uses, fatty alcohol-polyoxyethylene ether (JFC), 1 for example, 2-di-n-butyl naphthalene-6-sodium sulfonate (BX), poly alkyl alcohol oxyalkyl ether (SF) and two or more mixture arbitrarily wherein, preferred JFC-BX mixed type bleeding agent; Described boiling temperature is 95～100 ℃, and digestion time is 3.0～3.5 hours, the volume ratio of cooking liquor and bamboo chip 2: 1～4: 1;
Described pressure mutual aid system devised for poor peasants preface is to adopt the conventional pressure of using to prick machine well-done bamboo chip band hydraulic pressure is pricked, and is pressing bundle machine rear portion water spray washing to press bamboo chip after pricking, its purpose to be to remove the impurity that most of alkali and major part decompose out through boiling.Wherein, keeping the bamboo chip temperature in the pressure bundle process is 70～80 ℃.With 2 centimetres of wide bamboo chips in the left and right sides is example, forms 20～24 centimetres wide cotton-shaped thin slice after overvoltage is pricked.
In described and washing step be will press the cotton-shaped thin slice that obtains in the bundle process to press to use weak acid liquid to carry out neutralisation treatment in the binding at second, adopt second to press the purpose of binding to be further to remove impurity such as bamboo spring, pectin, bamboo fibre is further peeled off, thereby obtained the bamboo fiber bundle fibre.Wherein, described weak acid liquid can be the conventional weak acid that uses, and as oxalic acid etc., the pH value of the cotton-shaped thin slice in neutralization back should be about 7.5, the cotton-shaped thin slice secondary band hydraulic pressure bundle after will neutralizing subsequently 2～3 times; Described bamboo fiber bundle fibre is meant the apparent single fiber that seems, and so-called in fact " single " fiber is the set of a lot of root bamboo fibre single fibers.
Described enzyme treatment process is that fine immersion of bamboo fiber bundle after secondary band hydraulic pressure is pricked contains enzymolysis a period of time in the enzyme solutions, and its purpose is further to remove the compositions such as pectin in the bamboo fibre, thereby with the fine further refinement that separates of bamboo fiber bundle.
Employed enzyme is an amylase in the described enzyme treatment process, and the concentration of enzyme solutions is 1%～10% (w/w), is preferably 1%～5% (w/w), and more preferably 1.5%～3% (w/w) most preferably is 2% (w/w); Hydrolysis temperature is a normal temperature, the highlyest is no more than 40 ℃, to keep the activity of enzyme, is preferably 20～35 ℃, more preferably 25～30 ℃; Enzymolysis time is 20～120 minutes, is preferably 30～50 minutes, is generally about 40 minutes;
Described secondary boiled and secondary water washing operation is the bamboo fiber bundle fibre a period of time of boiling at a certain temperature that contains in the enzyme solutions being immersed in, and with the bamboo fiber bundle fibre after the circulating water washing boiling, the fine pH value of the bamboo fiber bundle after the washing is 6.5～7.0 then.Wherein said boiling temperature is about 80 ℃, about 1 hour of digestion time.
Through above-mentioned enzyme treatment process, secondary boiled and secondary water washing operation, obtain thinner bamboo fiber bundle fibre.
(3) bamboo fibre postprocessing working procedures
Described bamboo fibre postprocessing working procedures generally includes branch silk, dehydration, softness, wet comb, oven dry, combing operation.In order to make the bamboo fibre color and luster that makes pure white, can also after minute wire process, add bleaching process in the described bamboo fibre postprocessing working procedures.
In the bamboo fibre postprocessing working procedures of the present invention, wire process adopted the conventional branch silk machine that uses that the bamboo fibre that above-mentioned operation obtains is separated into reticular fibre in described minute; Described bleaching, dehydration, softness, wet comb, oven dry, combing operation all can adopt the known technology of this area, use conventional equipment and conventional auxiliary material such as finish to finish.
The bamboo fiber bundle that is obtained by the bamboo fiber processing operation is fine handle through described bamboo fibre postprocessing working procedures after, finally obtain having spinnability, fineness is 1600～1900 public bamboo fibre single fibers.
Another purpose of the present invention has provided the yarn, particularly high grade yarn by bamboo fibre spinning of the present invention, and the fineness of described yarn is 28～70 public.Described yarn can be the pure bamboo yarn by bamboo fibre spinning of the present invention, also can be the blended yarn that is obtained by bamboo fibre of the present invention and one or more natural fabrics and/or chemical fibre and/or synthetic fiber blending, described yarn be in intensity, fineness and the various requirement that should have aspects such as performance all can satisfy textile industry.
Another purpose of the present invention has provided the fabric of producing with bamboo fibre of the present invention.Described fabric comprises textiles, knitted fabric etc., described textiles can be plain, drillipg etc., described fabric can be made by bamboo fibre of the present invention separately, it also can be the blending thing of bamboo fibre of the present invention and one or more natural fabrics and/or chemical fibre and/or synthetic fiber, the plain of weaving with the pure bamboo yarn of bamboo fibre of the present invention is similar to silk fabric at aspects such as outward appearance, feel, water imbibition, gas permeabilities, its antibiotic property, drapability, resilience, ABRASION RESISTANCE, uvioresistant and the advantage that the aspects such as excitant of skin is had uniqueness.
Because the present invention adopts physical method directly to make the spinnability bamboo fibre from former bamboo, thereby has acted on many natural characteristics of former bamboo.The feasible all kinds of textile raw materials of being made by textile technologies such as silk spinning, bast fibre spinning, cotton spinning, blending by bamboo fibre of the present invention also have the excellent characteristic of natural bamboo, for example nice and cool, ventilative, heat-clearing, antibiotic etc. meets world today's uphold nature, pursues comfortable trend.Therefore, the various product made from bamboo fibre of the present invention will bring a kind of new natural fabric kind for the public, therefore have broad application prospects.
Description of drawings
The vertical face electromicroscopic photograph of the natural bamboo fibres of the present invention that Fig. 1 makes for embodiment 1;
The cross section electromicroscopic photograph of the natural bamboo fibres of the present invention that Fig. 2 makes for embodiment 1;
The electromicroscopic photograph of the natural bamboo fibres lumen of the present invention that Fig. 3 makes for embodiment 1.
The specific embodiment
Below by specific embodiment the present invention is described in detail.
The production of embodiment 1 bamboo fibre
1, preliminary treatment: the mao bamboon debranching that will be 1～2 year growth period saves, removes taper, discards the part near 20 centimetres of roots, natural length by ring cuts into thick bamboo tube, about 20 centimetres of length, with after hitting the bamboo machine bamboo spring being removed in described thick bamboo tube fragmentation, make the bamboo chip of 2 centimetres of left and right sides width then;
2, soak: the bamboo chip that makes is piled up as far as possible regularly, and be immersed in the neutral solution that contains 0.01% (w/w) JFC-BX mixed type bleeding agent, soak time is 10～11 hours;
3, boiling: the bamboo chip that will soak was added a cover boiling 3 hours in 100 ℃ under normal pressure, cooking liquor is the aqueous solution of caustic soda (NaOH), wherein contain bleeding agent, the concentration of bleeding agent is about 1% (w/w), described bleeding agent is a JFC-BX mixed type bleeding agent, the pH value of cooking liquor is 13, and wherein the volume ratio of cooking liquor and bamboo chip is 2: 1;
4, press to prick, neutralization and washing: well-done bamboo chip is pricked machine band hydraulic pressure with conventional pressure pricks, press that to keep the bamboo chip temperature in the bundle process be 70～80 ℃, obtain cotton-shaped thin slice, at the cotton-shaped thin slice of pressing bundle machine rear portion water spray washing to obtain; Press at second and to use oxalic acid liquid to carry out neutralisation treatment in the binding, and make pH value after the neutralization about 7.5, the cotton-shaped thin slice band hydraulic pressure bundle after will neutralizing then 2 times obtains the bamboo fiber bundle fibre;
5, enzyme is handled: the bamboo fiber bundle after secondary band hydraulic pressure is pricked is fine to be immersed in the amylase solution of 2% (w/w), 25～30 ℃ of following enzymolysis 40 minutes;
6, secondary boiled and washing: the bamboo fiber bundle fibre that will be immersed in the amylase solution is added a cover boiling 1 hour under 80 ℃, the water bamboo fiber bundle fibre after the washing boiling that flows then, the pH value of the bamboo fiber bundle fibre after the washing is 6.5～7.0, obtains thinner bamboo fiber bundle fibre.
7, post processing: with dividing the silk machine that the bamboo fiber bundle fibre that last operation obtains is separated into reticular fibre; Hydrogen peroxide with 1% (w/w) is bleached light yellow reticular fibre 1 hour as bleaching agent; Water softens reticular fibre 20 minutes with 2% (w/w) silicone softening agent FK-220C2 after bleached fiber is cleaned; With softening good fiber centrifugal dehydration, dehydration rate 65%; With the wet comb of the wet comb slivering of the wet fiber after the dehydration; Employing continous mode drying technology will wet and comb the netted wet fiber oven dry of slivering; The reticular fibre of oven dry is carded to the bamboo fibre single fiber with carding machine (model C Z1918, Dongchang, Qingdao Textile Machinery Co., Ltd).
The fineness of the bamboo fibre that obtains according to above-mentioned process conditions is that 5.46dtex (1831.3 public), intensity are that 5.31 (cN/dtex), elongation are 3.6, pliability is 16 (twisting with the fingers/5 centimetres).
The above-mentioned electromicroscopic photograph that makes bamboo fibre as shown in Figure 1 to Figure 3.
The production of embodiment 2 pure bamboo yarns
Adopt extension system bar spinning process, the pure bamboo yarn of natural bamboo fibres (40～70 public propping up) that makes by bamboo fibre of the present invention through crush cutting.Textile technology of using among the present invention and Weaving device are conventional textile technology and the Weaving device that uses of textile industry.The technological process of concrete spinning is as follows:
Crush cutting → choose is fine, divide pound → extension (2 road) → system bar → grilling (4 road) → rove → spun yarn
Subsequently, the method and apparatus that adopts the textile industry routine to the various mass parameters of the pure bamboo yarn that makes such as line density, intensity, intensity inequality, percentage elongation, bar do, details, slubbing, knot grain etc. measure.Measure each mass parameter of the ramie yarn of same line density simultaneously, the results are shown in table 1.
The mass parameter of table 1 bamboo fiber garn of the present invention
| Yarn | Line density (tex) | Intensity (cN/tex) | The uneven CV (%) of intensity | Percentage elongation (%) | Bar is done CV (%) | Details (50%) (individual/km) | Slubbing (+50%) (individual/km) | Knot grain (+200%) (individual/km) |
| Pure bamboo yarn | 16.7 | 9.44 | 32.80 | 2.58 | 27.1 | 1440 | 780 | 1104 |
| Pure bamboo yarn | 27.8 | 14.51 | 24.5 | 3.68 | 20.41 | 380 | 430 | 1037 |
| Ramie yarn | 27.8 | 19.31 | 23.4 | 2.73 | 20.66 | 335 | 457 | 1091 |
The data of table 1 show: compare with the mass parameter of the ramie yarn of same line density, by the pure bamboo yarn of natural bamboo fibres of bamboo fibre of the present invention spinning except that intensity is lower slightly, all the other mass parameters are all suitable substantially with ramie yarn, can satisfy the specific (special) requirements of textile industry fully.
Claims (10)
1, a kind of natural bamboo fibres, the fineness of this bamboo fibre are 1600～1900 public, natural slub length, but except the bamboo fibres that fineness is 1687 public affairs props up.
2, natural bamboo fibres as claimed in claim 1, the fineness of described bamboo fibre are 1700～1900 public.
3, the processing method of claim 1 or 2 described natural bamboo fibres, this method comprises former bamboo pretreatment procedure, bamboo fiber processing operation and bamboo fibre postprocessing working procedures; Described bamboo fiber processing operation comprises that immersion, boiling, pressure are pricked, neutralization is washed, enzyme is handled, secondary boiled and secondary water washing operation, it is characterized in that described cooking process carries out under normal pressure, and the enzyme that uses in the described enzyme treatment process is amylase.
4, bamboo fiber processing method as claimed in claim 3, wherein said former bamboo pretreatment procedure comprise ring, go bamboo spring and system bamboo chip operation.
5, bamboo fiber processing method as claimed in claim 3, wherein said bamboo fibre postprocessing working procedures comprise branch silk, bleaching, dehydration, softness, wet comb, oven dry and combing operation.
6, bamboo fiber processing method as claimed in claim 3, the concrete steps of wherein said bamboo fiber processing operation are:
(1) soaks operation, the bamboo chip that makes was soaked 8～11 hours in the neutral aqueous solution that contains 0.01%～0.05% (w/w) bleeding agent;
(2) cooking process, be to soak the boiling 3.0～3.5 hours under normal pressure in cooking liquor of the bamboo chip that obtains in the operation, wherein said cooking liquor is the aqueous solution of caustic soda (NaOH), wherein contain bleeding agent, the concentration of bleeding agent is 1% (w/w), the addition of caustic soda is to make the pH of cooking liquor more than 12 or 12, and boiling temperature is 95～100 ℃, the volume ratio of cooking liquor and bamboo chip 2: 1～4: 1;
(3) press mutual aid system devised for poor peasants preface, adopt the pressure bundle machine of routine use that well-done bamboo chip band hydraulic pressure is pricked, and at the bamboo chip of pressing after bundle machine rear portion water spray washing is pressed bundle, wherein, maintenance bamboo chip temperature is 70～80 ℃ in the pressure bundle process;
(4) in and washing step, use weak acid liquid to carry out neutralisation treatment in the binding with pressing the cotton-shaped thin slice that obtains in the bundle process to press at second, make the pH value of the cotton-shaped thin slice in neutralization back be approximately 7.5, the cotton-shaped thin slice secondary band hydraulic pressure after will neutralizing is subsequently pricked 2～3 times, obtains the bamboo fiber bundle fibre;
(5) enzyme treatment process, under the room temperature, the bamboo fiber bundle fibre that above-mentioned operation is obtained soaked enzymolysis 20～120 minutes in amylase solution; With
(6) secondary boiled and washing step will be immersed in the bamboo fiber bundle fibre that contains in the enzyme solutions 80 ℃ of boilings 1 hour, and with the bamboo fiber bundle fibre after the circulating water washing boiling, the fine pH value of the bamboo fiber bundle after the washing is 6.5～7.0, obtains thinner bamboo fiber bundle fibre then.
7, bamboo fiber processing method as claimed in claim 6, the concentration of employed amylase solution is 1%～10% (w/w) in the wherein said enzyme treatment process.
8, bamboo fiber processing method as claimed in claim 7, the concentration of the employed amylase solution of wherein said enzyme treatment process is 1%～3% (w/w).
9, a kind of yarn by the described natural bamboo fibres spinning of claim 1.
10, the fabric made from the bamboo fibre of claim 1.
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| CN102051691A (en) * | 2011-01-14 | 2011-05-11 | 浙江民心生态科技有限公司 | Production process of bamboo fiber |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101007420B (en) * | 2007-01-26 | 2010-05-19 | 南京林业大学 | Method for producing artificial hardwood by bamboo material |
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