US20140291882A1 - Processing method of natural cellulose fiber intrinsically with enhanced antiseptic, deodorant and negative-ion features from bamboo - Google Patents
Processing method of natural cellulose fiber intrinsically with enhanced antiseptic, deodorant and negative-ion features from bamboo Download PDFInfo
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- US20140291882A1 US20140291882A1 US13/896,442 US201313896442A US2014291882A1 US 20140291882 A1 US20140291882 A1 US 20140291882A1 US 201313896442 A US201313896442 A US 201313896442A US 2014291882 A1 US2014291882 A1 US 2014291882A1
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Images
Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/013—Regenerated cellulose series
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
Definitions
- the present invention relates to a processing method of natural cellulose fiber intrinsically with enhanced antiseptic, deodorant and negative-ion features from bamboo, particularly for one regarding bamboo pulp with eco-friendly biodegradable feature.
- the product of the bamboo cellulose fiber produced by the present invention either in filament or staple status, do really has effects in antiseptic and deodorant capability as well as anion retentiveness so that it can be used in textile, medical or health-care and bioscience fields as well as wafer-cleaning in semiconductor.
- the consumption is polypropylene (PP), polyester (PET), polyethylene (PE) and Nylon in quantity order with overall consumed quantity 96%.
- PP polypropylene
- PET polyester
- PE polyethylene
- Nylon polypropylene
- the wasted fabric of chemical synthetic fiber after having been used incurs a malignant impact to the environment because they are un-biodegradable by natural environment.
- the manufacturers of the natural cellulose fabric gradually divert to use natural materials such as pulp with suitable solution become a mainstream to substitute for raw materials of chemical synthetic fiber so that it is so called as eco-friendly fiber or Lyocell fiber as the wasted fabric thereof is biodegradable.
- bamboo fiber—bamboo fiber publicized in the issue 2 of year 2003 of “scientific and technical journals/periodicals” by the “Shandongzhou Textile Industry Association” in the outskirt China, it testifies that the bamboo fiber intrinsically has enhanced antiseptic, moisture-absorbing, air-permeating, deodorant and negative-ion health-care features.
- bamboo belong to rapid-growing plant having strong fertility with crop rate to cut down in 2-3 year span and good recycling resource with re-cultivating easiness without any severe ecological destruction to the forest land, which usually happened in cutting down of the timber.
- the cost of the bamboo pulp is only one third in the cost of the wood pulp. Therefore, the productions of bamboo fiber by means of solvent means in Lyocell fiber process have been publicized in many patent documents such as venue China Invention Patent in Patent Numbers of CN1129680, CN1190531, CN1315624 and CN100395384.
- the common drawback of foregoing venue China Invention Patents is lack of deodorant feature and effect on the basis of disclosed specifications thereof.
- the drawback of the foregoing coffee yarn product is that it still incurs a malignant impact to the environment because they are un-biodegradable by natural environment since the high polymer granules also selected from polypropylene (PP), polyester (PET), polyethylene (PE) and Nylon.
- PP polypropylene
- PET polyester
- PE polyethylene
- Nylon Nylon
- the present invention provides a processing method of natural cellulose fiber intrinsically with enhanced antiseptic, deodorant and negative-ion features from bamboo.
- the processing method firstly blends a selected bamboo pulp with wasted coffee residue as raw material into a mixture.
- NMMO N-methylmorpholine N-oxide
- BOX 1,3-phenylene-bis 2-oxazoline
- VTFE vacuum thin film evaporator
- FIG. 1 is a flow chart of block diagram showing the fabricating process of the present invention.
- FIG. 2 is a chemical structure of the (N-methylmorpholine N-oxide, called NMMO for short) used in the present invention.
- FIGS. 1 and 2 showing the “processing method of natural cellulose fiber intrinsically with enhanced antiseptic, deodorant and negative-ion features from bamboo” of the present invention with process comprising following steps.
- Material Selection and Preparation Select bamboo pulp and wasted coffee residue as raw material to blend together mutually into a mixture, preferably the cellulose content of the bamboo pulp being over 80% and the range for degree of polymerization (DP) being 400-800 while the wasted coffee residue having been ground into range of 500 nm-1000 nm (nano-meter) granules in high speed mode;
- DP degree of polymerization
- NMMO N-methylmorpholine N-oxide
- BOX 1,3-phenylene-bis 2-oxazoline
- NMMO N-methylmorpholine N-oxide
- VTFE vacuum thin film evaporator
- Spinning and Thread Formation Spin the dope obtained from previous step b by dry-jet wet spinning method, wherein the dope is fed into a die assembly and forcedly extruded out of spinnerets into the spinning machine for spinning and coagulation bath for coagulating and regenerating via a quantitative metering gear pump to form thread bundle of bamboo cellulose, wherein certain hot air is continuously fed therein for circulation around peripheral thereof then discharged out via surrounding of the spinnerets; and
- the thread bundle obtained from previous step c is orderly treated by water rinsing, desiccating, lubricating, winding-up and the like to produce reeled natural bamboo cellulose fiber with enhanced antiseptic, deodorant and negative-ion features such that the resultant fiber product can be either wound into continuous filament yarn or cut into staple fiber in accordance with the requirements specified, wherein, desiccating process is undertaken with temperature range in 100 degree of Celsius and 150 degree of Celsius (100° C.-150 winding speed in the winding process is in range of 200-800 meter per minute while the produced bamboo cellulose fiber has property that the range of fiber tenacity is 1.5 g/d-4.0 g/d, the range of fiber elongation rate is 4.0%-8.0% and the range of fiber Young's modulus is 50 g/d-150 g/d.
- the weight content of the wasted coffee residue in the prepared bamboo pulp mixture of step a aforesaid is in a range of 0.5 wt %-5 wt %.
- additive stabilizer 1,3-phenylene-bis 2-oxazoline functions to subdue the declining recession for the color and degree of polymerization (DP) of bamboo cellulose while the primary dissolving solvent N-methylmorpholine N-oxide (NMMO) is nontoxic with concentration range of 50%-75% so that it can be recycled with low consumption rate after having been drained out in water rinse process with a range for rate of recovery up to over 99.7%.
- DP color and degree of polymerization
- NMMO primary dissolving solvent N-methylmorpholine N-oxide
- the primary NMMO dissolving solvent used in the process of the present invention will be liberated after coagulating, regenerating in coagulation bath and water rinsing process.
- the actual procedure of the primary NMMO dissolving solvent recovery includes steps as below:
- Bleach adopting absorption method of the suspended active carbon. Put 0.05%-0.10% active carbon powder of good absorptivity and suspension ability into the solution of NMMO solvent to be de-colored, then alternate the air-blast mixing absorption and the stationary suspending absorption treatments in treating time ratio is 1:3 to 1:6 for 8 hours to finish the bleaching procedure so that not only the related equipments can be simplified but also the energy can be saved as well as the bleaching effect can be promoted.
- Filtration adopting two filtering stages.
- First coarse filtering stage for simplifying the equipment, general cartridge filter is used together with the auxiliary filtering agent, which is pre-coated over the surface of the cartridge filter, and put 0.03%-0.05% of leavening agents into the liquid to be filtrated for not only preventing the active carbon from accumulating on the surface thereof in hindering the filtering speed but also regularly maintaining filtering effect of high performance without decay.
- the composition of said auxiliary filtering agent is preferably made of diatomite and cellulose in ratio of 4:1.
- Second fine filtering stage by means of fine filter UF, the purity of the filtered liquid is the same as fresh NMMO solvent.
- the features of this two filtering stages in coarse filtering stage and fine filtering stage are low equipment cost, low consumption rate, high treating quantity and high purity.
- Condensation concurrently combining two condensing methods.
- the condensing load in dehydration is very large in manner of approximately 90 tons per ton of fiber as solvent concentration must be condensed from range of 6.5%-8.0% to range of 50%-55%.
- the tri-effect condensing method is adopted to dehydrate per ton of rinsing liquid in using 0.5 ton of steam (high steam consumption, low electric power consumption);
- the Mechanical Vapor Recompression (MVR) condensing method is adopted to dehydrate per ton of rinsing liquid in using 0.003-0.03 ton of steam (low steam consumption, high electric power consumption);
- the yield condensed solvent and water in both foregoing condensing methods are also completely recovered for reusing though each condensing method is only suitable for different specific yield quantity of fiber.
- the yield condensed solvent is reused as processing solvent and yield condensed water is reused to rinse fiber.
- bamboo grows in natural wild-field instead of greenhouse.
- the reason why bamboo can be free from moth and mildewed is that it has intrinsic anti-bacteria organic compound named “bamboo quinone”, which has antiseptic capability.
- bamboo quinone intrinsic anti-bacteria organic compound
- the testing bacteria in this embodiment adopt type (A) bacteria: Methicillin Resistant Staphyloccous Aureus (MRSA) (ATCC 6538P) and type (B) bacteria: Klebsiella Pheumoniae (ATCC 4352) as two testing strains or bacteria species.
- MRSA Methicillin Resistant Staphyloccous Aureus
- B Klebsiella Pheumoniae
- the experiment is performed in accordance with JIS L1902-1998 Quantitative Method.
- the incubated bacteria concentration within 1.0 ⁇ 0.3 E +5 (number/ml) means valid for the experiment.
- the numerical (1.3 E +4 ) denotes 13,000 with analog and so on.
- Ma is bacteria number of un-processed sample in immediate count upon cleansing without incubation.
- Mb is bacteria number of un-processed sample after being incubated for 18-24 hours.
- Mc bacteria number of processed sample after being incubated for 18-24 hours.
- the growing activity value of the bacteria (BGA) is computed by following calculating formula such that BGA>1.5 means valid of the experiment.
- the antiseptic function is that the testing sample has bacteriostatic effect if its bacteriostatic value BSN>2.2 while the testing sample has bactericidal effect if its bactericidal value BKN>0.
- the resultant data in the test for assaying of the antiseptic capability for samples 1-12 of bamboo cellulose fiber obtained from foregoing embodiment are listed in the Table 2 and Table 3.
- the sample bamboo cellulose fiber of the present invention has excellent antiseptic capability both in bacteriostatic and bactericidal effects for both of bacteria of Methicillin Resistant Staphyloccous Aureus (MRSA) (ATCC 6538P) and Klebsiella Pheumoniae (ATCC 4352).
- MRSA Methicillin Resistant Staphyloccous Aureus
- ATCC 4352 Klebsiella Pheumoniae
- the experiment for evaluating deodorant effect is on the testing basis in absorption of the ammonia odor.
- the testing method is performed in following steps.
- Step 1 fill the ammonia gas of specific concentration into the air-tight bottle
- Step 2 put the sample Lyocell processed bamboo cellulose fiber of the present invention in specific quantity into the same bottle aforesaid to absorb ammonia gas for 15 minutes;
- Step 3 measure the gas concentration in the sample Lyocell processed bamboo cellulose fiber before and after putting into the bottle by gas chromatograph (GC).
- GC gas chromatograph
- the ratio of the deodorant property (DOP) for ammonia absorption rate test is calculated by following formula.
- Ca is the gas concentration in the sample fiber before absorbing ammonia while Cr is the gas concentration in the sample fiber after absorbing ammonia.
- the sample bamboo cellulose fiber of the present invention has excellent deodorant capability.
- Negative ion which is also called anion, has been recognized as “the vitamin of the air”, confirming its health effect on human. Ions can be generated when a large amount of energy is applied to an atom or a molecule so that negative ions are created in nature with air molecules broken apart by UV radiation from sunlight, cosmic radiation, radioactive substances and thunderstorm as well as water splashing from waterfalls, jetting river, ejecting fountain and raging sea waves. Plants that carry out photosynthesis are also able to generate negative ions.
- the experiment for evaluating anion retentiveness adopts digital air cation/anion ion counter made by specific American manufacturer.
- the testing method is performed via firstly rub, crumple and knead the sample bamboo cellulose fiber of the present invention by hands; and then count the number of the negative ions by the ion counter.
- the resultant data for samples 1-12 of bamboo cellulose fiber obtained from foregoing embodiment in evaluating anion retentiveness are listed in the Table 5.
- the sample bamboo cellulose fiber of the present invention has excellent anion retentiveness in exceeding normal anion content of 430 (ions/cc) for atmosphere on earth surface.
- the antiseptic and deodorant capability for the sample bamboo cellulose fiber in the present invention can still keep 95% approximately. Thereby, it really is a natural cellulose fiber with long-lasting persistence in antiseptic and deodorant capability, which is far better than that of marketing antiseptic and/or deodorant fibers processed by surface treatment or antiseptic addition.
- the anion retentiveness for the sample bamboo cellulose fiber in the present invention can still keep obvious anion retentiveness effectively. Thereby, it really is a natural cellulose fiber with long-lasting persistence in anion retentiveness without harmful spoil.
- the bamboo cellulose fiber produced by the present invention do really has effects in antiseptic and deodorant capability as well as anion retentiveness so that it can be used in textile, medical or health-care and bioscience fields as well as wafer-cleaning in semiconductor.
- it really has innovative novelty beyond obviousness of the prior arts and practical industrial application, which meet the basic criterion of the patentability. Accordingly, we submit the patent application in accordance with the related patent law.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Applications Claiming Priority (2)
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TW102110616 | 2013-03-26 | ||
TW102110616A TWI632261B (zh) | 2013-03-26 | 2013-03-26 | Method for preparing bamboo cellulose fiber with natural antibacterial, deodorizing and negative ion functions |
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US13/896,442 Abandoned US20140291882A1 (en) | 2013-03-26 | 2013-05-17 | Processing method of natural cellulose fiber intrinsically with enhanced antiseptic, deodorant and negative-ion features from bamboo |
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TW (1) | TWI632261B (zh) |
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CN110804198A (zh) * | 2019-11-19 | 2020-02-18 | 石家庄学院 | 一种抑菌纤维素可降解复合膜的制备方法 |
WO2023115556A1 (zh) * | 2021-12-24 | 2023-06-29 | 刘峰 | 抗菌纤维制品及其制备方法和应用 |
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CN109468688B (zh) * | 2018-11-22 | 2021-06-08 | 绍兴美标纺织品检验有限公司 | 纤维素纤维的纺丝方法 |
CN114775126A (zh) * | 2022-04-13 | 2022-07-22 | 龙游生生纺织科技有限公司 | 一种循环再生落棉的环保花式色纺纱及其制备方法 |
Citations (5)
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KR101904771B1 (ko) * | 2017-09-22 | 2018-10-05 | 오영세 | 라이오셀 섬유 및 그 제조방법 |
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Also Published As
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TWI632261B (zh) | 2018-08-11 |
TW201437444A (zh) | 2014-10-01 |
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