CN113930856B - Noni short fiber and preparation method thereof - Google Patents
Noni short fiber and preparation method thereof Download PDFInfo
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- CN113930856B CN113930856B CN202111304201.7A CN202111304201A CN113930856B CN 113930856 B CN113930856 B CN 113930856B CN 202111304201 A CN202111304201 A CN 202111304201A CN 113930856 B CN113930856 B CN 113930856B
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- noni
- viscose
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- fiber
- solution
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- 244000131360 Morinda citrifolia Species 0.000 title claims abstract description 98
- 235000017524 noni Nutrition 0.000 title claims abstract description 98
- 239000000835 fiber Substances 0.000 title claims abstract description 92
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 229920000297 Rayon Polymers 0.000 claims abstract description 55
- 235000013399 edible fruits Nutrition 0.000 claims abstract description 54
- 238000002156 mixing Methods 0.000 claims abstract description 39
- 238000009987 spinning Methods 0.000 claims abstract description 25
- 239000000284 extract Substances 0.000 claims abstract description 24
- 238000007711 solidification Methods 0.000 claims abstract description 14
- 230000008023 solidification Effects 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims description 53
- 235000020729 noni extract Nutrition 0.000 claims description 26
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 230000001112 coagulating effect Effects 0.000 claims description 18
- 239000003431 cross linking reagent Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- 238000005406 washing Methods 0.000 claims description 16
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 12
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 12
- 230000003068 static effect Effects 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 10
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 238000000465 moulding Methods 0.000 claims description 8
- 238000000354 decomposition reaction Methods 0.000 claims description 7
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 5
- UWFRVQVNYNPBEF-UHFFFAOYSA-N 1-(2,4-dimethylphenyl)propan-1-one Chemical compound CCC(=O)C1=CC=C(C)C=C1C UWFRVQVNYNPBEF-UHFFFAOYSA-N 0.000 claims description 4
- SHKUUQIDMUMQQK-UHFFFAOYSA-N 2-[4-(oxiran-2-ylmethoxy)butoxymethyl]oxirane Chemical group C1OC1COCCCCOCC1CO1 SHKUUQIDMUMQQK-UHFFFAOYSA-N 0.000 claims description 4
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 4
- 239000012752 auxiliary agent Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 238000006477 desulfuration reaction Methods 0.000 claims description 4
- 230000023556 desulfurization Effects 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 235000015203 fruit juice Nutrition 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 230000008929 regeneration Effects 0.000 claims description 4
- 238000011069 regeneration method Methods 0.000 claims description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 4
- 235000011152 sodium sulphate Nutrition 0.000 claims description 4
- 238000002166 wet spinning Methods 0.000 claims description 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 3
- 229960001763 zinc sulfate Drugs 0.000 claims description 3
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 18
- 239000002994 raw material Substances 0.000 abstract description 11
- 229920003043 Cellulose fiber Polymers 0.000 abstract description 4
- 238000007306 functionalization reaction Methods 0.000 abstract description 4
- 239000000047 product Substances 0.000 description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 16
- 229920002678 cellulose Polymers 0.000 description 7
- 239000001913 cellulose Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 238000004132 cross linking Methods 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- 229910052717 sulfur Inorganic materials 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 102000004169 proteins and genes Human genes 0.000 description 4
- 108090000623 proteins and genes Proteins 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 3
- 239000000839 emulsion Substances 0.000 description 3
- 239000012467 final product Substances 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 3
- YBJHBAHKTGYVGT-ZKWXMUAHSA-N (+)-Biotin Chemical compound N1C(=O)N[C@@H]2[C@H](CCCCC(=O)O)SC[C@@H]21 YBJHBAHKTGYVGT-ZKWXMUAHSA-N 0.000 description 2
- GHOKWGTUZJEAQD-ZETCQYMHSA-N (D)-(+)-Pantothenic acid Chemical compound OCC(C)(C)[C@@H](O)C(=O)NCCC(O)=O GHOKWGTUZJEAQD-ZETCQYMHSA-N 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PVNIIMVLHYAWGP-UHFFFAOYSA-N Niacin Chemical compound OC(=O)C1=CC=CN=C1 PVNIIMVLHYAWGP-UHFFFAOYSA-N 0.000 description 2
- OENHQHLEOONYIE-UKMVMLAPSA-N all-trans beta-carotene Natural products CC=1CCCC(C)(C)C=1/C=C/C(/C)=C/C=C/C(/C)=C/C=C/C=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C OENHQHLEOONYIE-UKMVMLAPSA-N 0.000 description 2
- TUPZEYHYWIEDIH-WAIFQNFQSA-N beta-carotene Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1=C(C)CCCC1(C)C)C=CC=C(/C)C=CC2=CCCCC2(C)C TUPZEYHYWIEDIH-WAIFQNFQSA-N 0.000 description 2
- 235000013734 beta-carotene Nutrition 0.000 description 2
- 239000011648 beta-carotene Substances 0.000 description 2
- 229960002747 betacarotene Drugs 0.000 description 2
- 235000009120 camo Nutrition 0.000 description 2
- 235000005607 chanvre indien Nutrition 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- OVBPIULPVIDEAO-LBPRGKRZSA-N folic acid Chemical compound C=1N=C2NC(N)=NC(=O)C2=NC=1CNC1=CC=C(C(=O)N[C@@H](CCC(O)=O)C(O)=O)C=C1 OVBPIULPVIDEAO-LBPRGKRZSA-N 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 239000011487 hemp Substances 0.000 description 2
- 239000002563 ionic surfactant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920001282 polysaccharide Polymers 0.000 description 2
- 239000005017 polysaccharide Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 239000004627 regenerated cellulose Substances 0.000 description 2
- QZAYGJVTTNCVMB-UHFFFAOYSA-N serotonin Chemical compound C1=C(O)C=C2C(CCN)=CNC2=C1 QZAYGJVTTNCVMB-UHFFFAOYSA-N 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 230000002087 whitening effect Effects 0.000 description 2
- OENHQHLEOONYIE-JLTXGRSLSA-N β-Carotene Chemical compound CC=1CCCC(C)(C)C=1\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C OENHQHLEOONYIE-JLTXGRSLSA-N 0.000 description 2
- FPIPGXGPPPQFEQ-UHFFFAOYSA-N 13-cis retinol Natural products OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-UHFFFAOYSA-N 0.000 description 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- GHOKWGTUZJEAQD-UHFFFAOYSA-N Chick antidermatitis factor Natural products OCC(C)(C)C(O)C(=O)NCCC(O)=O GHOKWGTUZJEAQD-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 241000219146 Gossypium Species 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 206010061218 Inflammation Diseases 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 235000008898 Morinda citrifolia Nutrition 0.000 description 1
- OVBPIULPVIDEAO-UHFFFAOYSA-N N-Pteroyl-L-glutaminsaeure Natural products C=1N=C2NC(N)=NC(=O)C2=NC=1CNC1=CC=C(C(=O)NC(CCC(O)=O)C(O)=O)C=C1 OVBPIULPVIDEAO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 244000082204 Phyllostachys viridis Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 description 1
- FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 description 1
- 230000000172 allergic effect Effects 0.000 description 1
- 239000002246 antineoplastic agent Substances 0.000 description 1
- 229940041181 antineoplastic drug Drugs 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 208000010668 atopic eczema Diseases 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
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- 229960002685 biotin Drugs 0.000 description 1
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- 239000011616 biotin Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 235000013325 dietary fiber Nutrition 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229960000304 folic acid Drugs 0.000 description 1
- 235000019152 folic acid Nutrition 0.000 description 1
- 239000011724 folic acid Substances 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000007407 health benefit Effects 0.000 description 1
- 210000005260 human cell Anatomy 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 201000007270 liver cancer Diseases 0.000 description 1
- 208000014018 liver neoplasm Diseases 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Chemical compound CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 229960003512 nicotinic acid Drugs 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229940055726 pantothenic acid Drugs 0.000 description 1
- 235000019161 pantothenic acid Nutrition 0.000 description 1
- 239000011713 pantothenic acid Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 239000011669 selenium Substances 0.000 description 1
- 229910052711 selenium Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229940076279 serotonin Drugs 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 210000001082 somatic cell Anatomy 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
- D01F2/08—Composition of the spinning solution or the bath
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Artificial Filaments (AREA)
Abstract
The invention provides noni short fibers and a preparation method thereof, and belongs to the field of functional cellulose fiber preparation. Taking noni fruit extract and viscose as raw materials, and preparing noni fruit short fibers after blending, spinning, solidification and post-treatment; wherein, the weight ratio of noni fruit extract is 1-40%, and the weight ratio of alpha-fiber in viscose is 60-99%. In the invention, substances in the noni fruit extract are crosslinked and solidified in the alpha-fibers in the viscose through a specific preparation process, so that the functionalization of the short fibers is realized.
Description
Technical Field
The invention relates to noni short fibers and a preparation method thereof, and belongs to the field of functional cellulose fiber preparation.
Background
The regenerated cellulose fiber is a degradable material which takes natural cellulose (such as cotton, hemp, bamboo, tree, shrub and the like) as a raw material, and active hydroxyl groups in natural cellulose molecules and a plurality of functional molecules are subjected to graft copolymerization in different production links to realize modification. Wherein, the regenerated cellulose fiber with better performance can be manufactured by only changing the physical structure of the natural cellulose without changing the chemical structure, such as: the fabric has good air permeability, good hygroscopicity, good elasticity, soft, smooth and cool hand feeling, is not easy to generate static electricity, and has soft cotton, luster of silk and smoothness of hemp; more easy to color, good color fastness and the like.
Noni is the fruit of Morinda citrifolia that has a high content of human cells (somatic cells). Noni juice has been found by experimental studies and epidemiological statistics to have various health benefits from johnny westerdoctor at the university of hamburg medical science, germany, such as: can strengthen physical ability, improve overall health condition, relieve inflammation and pain, improve sleep, improve allergic constitution, etc. Noni contains more than 150 nutrient elements such as Xeronine, active ferment, beta-carotene, nicotinic acid, protein, carbonate, folic acid, biotin, pantothenic acid, serotonin, dietary fiber, ferment, vitamin A, B group, C, D, E, K, calcium, iron, magnesium, zinc, iodine, phosphorus, copper, chromium, manganese, sulfur, sodium, potassium, selenium, germanium, molybdenum and the like.
In the prior art CN201610781630.6, fresh noni fruits are added into an ethanol water solution containing a surfactant, stirred, fully extracted and filtered to obtain noni fruit extract emulsion. The invention also provides application of the noni extract emulsion in preparing cosmetics or skin care products, and the noni extract emulsion has stronger free radical clarity and better whitening skin care effect. Wherein the surfactant comprises an ionic surfactant and a nonionic surfactant, and the ionic surfactant comprises sodium dodecyl benzene sulfonate. The CN202010936638.1 noni uniform polysaccharide extraction and separation method and application discloses application of noni uniform polysaccharide as a bioactive component for inhibiting human liver cancer cells in preparation of antitumor drugs.
Disclosure of Invention
Based on the prior art, the invention provides a method for directly converting noni fruit extract into fibers, which can be used as raw materials of clothes, masks, sanitary materials and the like, and is blended with viscose solution and the like to finally obtain noni fruit short fibers, so that the functionalization of the viscose fibers is realized, and a novel short fiber material is further developed.
In order to achieve the technical purpose, the following technical scheme is provided:
the noni short fiber is prepared by taking noni extract and viscose as raw materials and carrying out blending, spinning, solidification and post-treatment; wherein, the weight ratio of noni fruit extract is 1-40%, and the ratio of alpha-fiber in viscose is 60-99%;
the indexes of the prepared noni short fiber finished product are as follows:
the dry breaking strength is more than or equal to 2.28cN/dtex, the wet breaking strength is more than or equal to 1.00cN/dtex, the dry breaking elongation is 17+/-4.5%, the linear density deviation is +/-4%, the length deviation is +/-6%, the ultra-long fiber rate is less than or equal to 1%, the multiple length fiber is less than or equal to 20mg/100g, the residual sulfur content is less than or equal to 20mg/100g, the defect is less than or equal to 6mg/100g, the greasy yellow fiber is less than or equal to 1mg/100g, and the dry breaking strength variation coefficient CV is less than or equal to 20%.
Further, the noni content in the noni extract is more than 90%, and the alpha-fiber content in the viscose is 8.5-9.2%.
A preparation method of noni short fibers comprises the following steps:
A. preparation of noni fruit juice
1) Dissolving noni fruit extract in ethanol water solution with the temperature of 50-90 ℃ and the concentration of 1-40%; adding sodium dodecyl benzene sulfonate, fully stirring, and cooling to 30-40 ℃ to obtain a solution I;
wherein, the mass fraction of the noni fruit extract after being dissolved in the ethanol water solution is 10-50%. The noni fruit extract can be directly purchased, and the noni fruit extract comprises Xeronine, active ferment, beta-carotene, nicotin, protein, carbonate and the like. The mass fraction of the noni extract after being dissolved in the ethanol water solution is 10-50%, and the arrangement of the mass fraction ensures the smooth and stable proceeding of the subsequent procedures, such as: when the mass fraction is smaller than the mass fraction, in order to ensure the quality and the quality of the final product noni short fiber during the subsequent spinning, the noni liquid is added in a large amount, so that more water and ethanol are brought in, the viscosity of the viscose liquid is reduced, and the spinning is not facilitated; similarly, if the addition amount of noni fruit extract is too large, the viscosity of the solution is too high, and noni fruit liquid is inconvenient to mix when being added into viscose liquid, and uneven mixing is caused, so that the spinning process and the quality of noni fruit short fibers are seriously affected;
defining ethanol as a solvent, which is mainly matched with the characteristics of substances in noni extracts, ensures the solubility of the substances in noni extracts, such as: a part of the noni extract has low solubility in a simple aqueous solvent, and may be insoluble in some precipitated substances. And setting the temperature of 50-90 ℃ and the concentration of 1-40%, so as to ensure the solubility of substances in the noni fruit extract in the ethanol water solution, if the temperature is too high, the ethanol in the solution is volatilized quickly, thereby not only wasting the cost, but also reducing the concentration of the solvent ethanol in the solution, but also not reaching the theoretical solubility; the temperature is too low, so that substances in the noni fruit extract are slowly dissolved, and the period of the whole preparation process is prolonged. Therefore, the mutual coordination of the solvent ethanol, the concentration and the dissolution temperature ensures the solubility of substances in the noni extract, thereby facilitating the subsequent process;
wherein, the mass fraction of the added amount of the sodium dodecyl benzene sulfonate is 1-5%, and the mass fraction is specifically as follows: the mass fraction of sodium dodecyl benzene sulfonate in the total mixture of noni extract and ethanol. The sodium dodecyl benzene sulfonate with the mass fraction promotes the dissolution of substances in the noni fruit extract, so that the solution is dispersed, has the function of capacity enhancement, and is convenient for the dissolution of the noni fruit extract and the stabilization of the solution;
after fully stirring, the temperature is reduced to 30-40 ℃, so that the ethanol is ensured not to volatilize due to high temperature in the process of preparing the solution, and meanwhile, the material in the subsequent process is convenient to add (carried out at the temperature);
2) Adding caustic soda into the solution I obtained in the step 1), and adjusting the pH value to 8.5-9; slowly adding the cross-linking agent in 3 hours under the condition of continuously preserving heat at 30-40 ℃, and continuously stirring for 5-24 hours at the same time, so as to promote the uniform mixing of the solution I and the cross-linking agent and reduce the self-crosslinking phenomenon to obtain a solution II;
wherein the cross-linking agent is 1,4 butanediol diglycidyl ether and/or ethylene glycol diglycidyl ether; the mass fraction of the adding amount of the cross-linking agent is 1-10%, and the mass fraction specifically refers to: the mass fraction of the cross-linking agent in the added solution;
caustic soda is used as an acid-base regulator, the cost is low, the caustic soda is also a reagent commonly used in textile industry, the source is wide (can be purchased directly or can be derived from recovery in a spinning process), and the related waste liquid treatment process is mature;
regarding the adjustment of the pH value, the raw material viscose is alkaline, so that the solution I is adjusted to be alkaline (if the solution I is acidic, in the subsequent blending, the reaction of neutralization of acid and alkali affects the spinning solution and cannot be used for normal spinning), thereby ensuring the smooth and stable operation of the subsequent spinning process; in addition, the pH value is too high, and the substances such as protein, xeronine and the like in the noni fruit extract lose activity, so that the quality and the quality of the final product cannot be ensured;
the heat preservation temperature is set to be 30-40 ℃, so that the temperature is adjusted to the temperature reduction temperature in the step 1), the activity of the proteins, the xylogen and other substances in the noni fruit extract is maintained, and the volatilization of ethanol is reduced;
the addition of the cross-linking agent, when the noni fruit liquid is mixed with the viscose, most substances in the noni fruit liquid are combined with the alpha-fibers; meanwhile, in the subsequent post-treatment, the short fiber primary product is dried and then irradiated by ultraviolet rays so as to crosslink again, thereby ensuring the crosslinking effect. The noni fruit liquid is slowly added within 3 hours, so that the stirring and the uniform dispersion are convenient; meanwhile, the limitation of a feeding mode of 'slow feeding' can prevent heat release in the dissolving process and reduce self-crosslinking phenomenon;
3) Standing the obtained solution II for more than 24 hours to precipitate part of insoluble substances in the solution II, and removing insoluble substances by using a centrifuge or a filter to obtain noni fruit liquid;
B. blending
Respectively defoaming the noni fruit liquid and the viscose liquid, then carrying out static mixing, and then defoaming to obtain a blending liquid;
in static mixing, the mass ratio of noni fruit liquid is 1-40%, and the mass ratio of alpha-fiber in viscose liquid is 60-99%;
wherein, the viscose is viscose with the alpha-cellulose content of more than or equal to 85 percent, hemicellulose of less than 20g/L and average polymerization degree of 500-1000 as raw materials, and the alpha-cellulose content of the viscose is 8.5-9.2 percent;
during static mixing, the ratio of noni fruit liquid to viscose liquid is limited, so that the subsequent spinning is ensured, and the quality of a final product is ensured. Such as: if the noni fruit liquid occupies a large amount, the spinning is not facilitated, and the spinning molding is poor; if the noni fruit liquid is low, the characteristics of the obtained functional short fiber are not obvious;
C. spinning process
Two-bath wet spinning is adopted;
feeding the blending liquid into a spinning machine through a glue supply pipeline, quantitatively feeding the blending liquid by a metering pump, filtering out particle impurities by a candle filter, feeding the blending liquid into a spinneret assembly by a curved pipe, and forming viscose trickles through spinneret holes under pressure;
D. solidification and curing
And (3) solidification: solidifying and molding the viscose trickle in a coagulating bath to obtain a primary strand silk;
wherein the coagulating bath comprises 250-360g/L sodium sulfate, 80-130g/L sulfuric acid, 10-50g/L zinc sulfate and 8-25g/L auxiliary agent, the specific gravity of the coagulating bath and the viscose trickle is 1.25-1.32, the coagulating bath temperature is 40-60 ℃, and the shaping of the viscose trickle can be better ensured. The viscose spinning forming is a very intense process, where a coagulation bath is definedThe temperature is used for forming the fibers without being too severe, ensuring the fiber to be formed and facilitating CS to be produced in the reaction process 2 Can be recovered as much as possible. The temperature rise accelerates the decomposition reaction of cellulose sulfonate, so that insufficient molding is caused by too fast reaction, and meanwhile, the added noni extract cannot be effectively reserved on the fibers, so that a large amount of noni extract is lost, and the quality of a short fiber finished product cannot be ensured;
curing: after passing through a yarn guiding disc, the primary yarn is bundled and stretched in a curing bath; in the curing bath, the primary yarn is stretched and simultaneously the decomposition and regeneration process is completed, wherein the structure of the fiber is shaped and the performance is stable, and the fiber bundle is obtained;
E. post-treatment
Cutting off the obtained fiber bundles, and obtaining a noni short fiber primary product after primary acid washing, desulfurization, primary water washing, secondary acid washing, secondary water washing, oiling, dehydration and drying;
carrying out ultraviolet radiation on the obtained noni short fiber primary product to realize solidification between noni extract and fiber, thus obtaining a noni short fiber finished product;
the noni extract and cellulose molecules can be better solidified, namely solidified and crosslinked by adopting ultraviolet radiation with the wavelength of 280-400nm for 1-10 min; simultaneously; the sterilization effect is also realized.
By adopting the technical scheme, the beneficial technical effects brought are as follows:
1) The invention takes noni fruit extract and viscose as raw materials, and the noni fruit short fiber is prepared by blending, spinning, solidifying and post-treatment. The indexes of the finished noni short fiber product are as follows:
the dry breaking strength is more than or equal to 2.28cN/dtex, the wet breaking strength is more than or equal to 1.00cN/dtex, the dry breaking elongation is 17+/-4.5%, the linear density deviation is +/-4%, the length deviation is +/-6%, the ultra-long fiber rate is less than or equal to 1%, the multiple length fiber is less than or equal to 20mg/100g, the residual sulfur content is less than or equal to 20mg/100g, the defects are less than or equal to 6mg/100g, the greasy yellow fiber is less than or equal to 1mg/100g, and the dry breaking strength variation coefficient CV is less than or equal to 20%;
wherein, the obtained noni short fiber has excellent functions of resisting oxidation, scavenging free radicals, whitening and the like;
2) In the invention, the prepared noni fruit liquid can be directly used as raw materials of clothes, masks, sanitary materials and the like. When the fiber is blended with viscose, the noni short fiber is finally obtained, the functionalization of the viscose is realized, and a new short fiber material is further developed;
3) In the invention, in order to be matched with the preparation process of the short fiber and ensure the quality of the product, a specific raw material noni fruit liquid (such as: the noni fruit extract contains 90% noni fruit, the solvent and its concentration, and the control conditions are the same, and the specific raw material viscose (the content of alpha-fiber in viscose is 8.5-9.2%) is selected, and the proportional relation between the two is further limited, so that the noni fruit extract is crosslinked and solidified in the alpha-fiber in viscose, to realize the functionalization of short fiber, and further ensure the stability, controllability, persistence and standardization of the functionalized fiber/silk preparation process.
Detailed Description
In the following, it is obvious that the embodiments described are only some embodiments of the present invention, but not all embodiments, by clearly and completely describing the technical solutions in the embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The embodiment provides a noni short fiber which is prepared by taking noni extract and viscose as raw materials and carrying out blending, spinning, solidification and post-treatment; wherein, the weight ratio of noni fruit extract is 1-40%, and the ratio of alpha-fiber in viscose is 60-99%;
the indexes of the prepared noni short fiber finished product are as follows:
the dry breaking strength is more than or equal to 2.28cN/dtex, the wet breaking strength is more than or equal to 1.00cN/dtex, the dry breaking elongation is 17+/-4.5%, the linear density deviation is +/-4%, the length deviation is +/-6%, the ultra-long fiber rate is less than or equal to 1%, the multiple length fiber is less than or equal to 20mg/100g, the residual sulfur content is less than or equal to 20mg/100g, the defect is less than or equal to 6mg/100g, the greasy yellow fiber is less than or equal to 1mg/100g, and the dry breaking strength variation coefficient CV is less than or equal to 20%.
Further, the noni content of noni extract is >90%.
Example 2
The embodiment provides a preparation method of noni short fibers, which comprises the following steps:
A. preparation of noni fruit juice
1) Dissolving noni fruit extract in ethanol water solution with the temperature of 50-90 ℃ and the concentration of 1-40%; adding sodium dodecyl benzene sulfonate, fully stirring, and cooling to 30-40 ℃ to obtain a solution I;
the mass fraction of the noni extract after being dissolved in the ethanol water solution is 10-50%, and the mass fraction of the sodium dodecyl benzene sulfonate added is 1-5%;
2) Adding caustic soda into the solution I obtained in the step 1), and adjusting the pH value to 8.5-9; slowly adding the cross-linking agent in 3 hours under the condition of continuously preserving heat at 30-40 ℃, and continuously stirring for 5-24 hours at the same time, so as to promote the uniform mixing of the solution I and the cross-linking agent and reduce the self-crosslinking phenomenon to obtain a solution II;
wherein the cross-linking agent is 1,4 butanediol diglycidyl ether and/or ethylene glycol diglycidyl ether; the mass fraction of the adding amount of the cross-linking agent is 1-10%;
3) Standing the obtained solution II for more than 24 hours to precipitate part of insoluble substances in the solution II, and removing insoluble substances by using a centrifuge or a filter to obtain noni fruit liquid;
B. blending
Respectively defoaming the noni fruit liquid and the viscose liquid, then carrying out static mixing, and then defoaming to obtain a blending liquid;
in static mixing, the mass ratio of noni fruit liquid is 1-40%, and the mass ratio of alpha-fiber in viscose liquid is 60-99%;
wherein the viscose is viscose with the content of alpha-fiber of 8.5-9.2 percent;
C. spinning process
Two-bath wet spinning is adopted;
feeding the blending liquid into a spinning machine through a glue supply pipeline, quantitatively feeding the blending liquid by a metering pump, filtering out particle impurities by a candle filter, feeding the blending liquid into a spinneret assembly by a curved pipe, and forming viscose trickles through spinneret holes under pressure;
D. solidification and curing
And (3) solidification: solidifying and molding the viscose trickle in a coagulating bath to obtain a primary strand silk;
wherein the coagulating bath comprises 250-360g/L sodium sulfate, 80-130g/L sulfuric acid, 10-50g/L zinc sulfate and 8-25g/L auxiliary agent, the specific gravity of the coagulating bath and the viscose trickle is 1.25-1.32, the coagulating bath temperature is 40-60 ℃, and the shaping of the viscose trickle can be better ensured. The viscose spinning forming is extremely intense, and the coagulating bath temperature is limited to ensure that the forming is not too intense, and the CS produced in the reaction process is also facilitated 2 Can be recovered as much as possible. The temperature rise accelerates the decomposition reaction of cellulose sulfonate, so that insufficient molding is caused by too fast reaction, and meanwhile, the added noni extract cannot be effectively reserved on the fibers, so that a large amount of noni extract is lost, and the quality of a short fiber finished product cannot be ensured;
curing: after passing through a yarn guiding disc, the primary yarn is bundled and stretched in a curing bath; in the curing bath, the primary yarn is stretched and simultaneously the decomposition and regeneration process is completed, wherein the structure of the fiber is shaped and the performance is stable, and the fiber bundle is obtained;
E. post-treatment
Cutting off the obtained fiber bundles, and obtaining a noni short fiber primary product after primary acid washing, desulfurization, primary water washing, secondary acid washing, secondary water washing, oiling, dehydration and drying;
and irradiating the obtained noni short fiber primary product for 1-10min by adopting ultraviolet rays with the wavelength of 280-400nm to realize the solidification between the noni extract and the fiber, so as to obtain the noni short fiber finished product.
Example 3
This example illustrates the production of 3kg of finished noni staple fiber to further illustrate the present invention.
The method specifically comprises the following steps:
A. preparation of noni fruit juice
1) Dissolving noni fruit extract in 30% ethanol water solution at 70deg.C; adding sodium dodecyl benzene sulfonate, fully stirring, and cooling to 30 ℃ to obtain a solution I;
30% of noni extract by mass after being dissolved in ethanol water solution, and 4% of sodium dodecyl benzene sulfonate by mass after being added;
2) Adding caustic soda into the solution I obtained in the step 1), and adjusting the pH value to 8.5; under the condition of continuously preserving heat at 30 ℃, slowly adding the cross-linking agent within 3 hours, and continuously stirring for 6 hours at the same time, so as to promote the uniform mixing of the solution I and the cross-linking agent and reduce the self-crosslinking phenomenon, thus obtaining a solution II;
wherein the cross-linking agent is one or two of 1, 4-butanediol diglycidyl ether and ethylene glycol diglycidyl ether; 6% of the cross-linking agent;
3) Standing the obtained solution II for more than 24 hours to precipitate part of insoluble substances in the solution II, and removing insoluble substances by using a centrifuge or a filter to obtain noni fruit liquid;
B. blending
Respectively defoaming the noni fruit liquid and the viscose liquid, then carrying out static mixing, and then defoaming to obtain a blending liquid;
in static mixing, the mass ratio of noni fruit liquid is 14%, and the mass ratio of alpha-fiber in viscose liquid is 86%;
wherein the viscose is viscose with the content of alpha-fiber of 8.5-9.2 percent;
C. spinning process
Two-bath wet spinning is adopted;
feeding the blending liquid into a spinning machine through a glue supply pipeline, quantitatively feeding the blending liquid by a metering pump, filtering out particle impurities by a candle filter, feeding the blending liquid into a spinneret assembly by a curved pipe, and forming viscose trickles through spinneret holes under pressure;
D. solidification and curing
And (3) solidification: solidifying and molding the viscose trickle in a coagulating bath to obtain a primary strand silk;
wherein the coagulating bath comprises 280g/L sodium sulfate, 100g/L sulfuric acid, 25g/L sulfurZinc acid and 12g/L auxiliary agent, the specific gravity of the coagulating bath and the viscose trickle is 1.28, the coagulating bath temperature is 55 ℃, and the shaping of the viscose trickle can be well ensured. The viscose spinning forming is extremely intense, and the coagulating bath temperature is limited to ensure that the forming is not too intense, and the CS produced in the reaction process is also facilitated 2 Can be recovered as much as possible. The temperature rise accelerates the decomposition reaction of cellulose sulfonate, so that insufficient molding is caused by too fast reaction, and meanwhile, the added noni extract cannot be effectively reserved on the fibers, so that a large amount of noni extract is lost, and the quality of a short fiber finished product cannot be ensured;
curing: after passing through a yarn guiding disc, the primary yarn is bundled and stretched in a curing bath; in the curing bath, the primary yarn is stretched and simultaneously the decomposition and regeneration process is completed, wherein the structure of the fiber is shaped and the performance is stable, and the fiber bundle is obtained;
E. post-treatment
Cutting off the obtained fiber bundles, and obtaining a noni short fiber primary product after primary acid washing, desulfurization, primary water washing, secondary acid washing, secondary water washing, oiling, dehydration and drying;
and (3) radiating the obtained noni short fiber primary product for 3min by ultraviolet rays (the wavelength is 280 nm), so as to realize the solidification between the noni extract and the fiber, and obtain 3kg of noni short fiber finished product.
Wherein, the finished product index of the noni short fiber is as follows:
dry breaking strength 2.53 cN/dtex, wet breaking strength 1.25cN/dtex, dry breaking elongation 20%, linear density deviation rate-0.8%, length deviation rate-0.35%, ultra-long fiber rate 0.3%, multiple fiber 5mg/100g, residual sulfur 13mg/100g, defect 2mg/100g, greasy yellow fiber 0mg/100g, dry breaking strength variation coefficient CV value 11%
Example 4
This embodiment differs from embodiment 3 in that:
the noni fruit liquid has a mass fraction of 15% and the rest of the process steps are the same as in example 3.
Example 5
This embodiment differs from embodiment 3 in that:
the mass fraction of the sodium dodecylbenzenesulfonate added was 2%, and the other steps were the same as in example 3.
Example 6
This embodiment differs from embodiment 3 in that:
in static mixing, the noni fruit liquid was 6% by mass and the rest of the process steps were the same as in example 3.
Example 7
This embodiment differs from embodiment 3 in that:
the mass ratio of the crosslinking agent was 2%, and the other steps were the same as in example 3.
The finished noni staple fibers obtained in examples 3-7 above were combined to give the results in Table 1 below.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent variation, etc. of the above embodiment according to the technical matter of the present invention fall within the scope of the present invention.
Claims (2)
1. A method for preparing noni short fibers, which is characterized by comprising the following steps:
A. preparation of noni fruit juice
1) Dissolving noni fruit extract in ethanol water solution with the temperature of 50-90 ℃ and the concentration of 1-40%; adding sodium dodecyl benzene sulfonate, fully stirring, and cooling to 30-40 ℃ to obtain a solution I;
wherein, the noni content in the noni extract is more than or equal to 90 percent, the mass fraction of the noni extract is 10-50 percent, and the mass fraction of the sodium dodecyl benzene sulfonate is 1-5 percent;
2) Adding caustic soda into the solution I obtained in the step 1), and adjusting the pH value to 8.5-9; slowly adding the cross-linking agent in 3 hours under the condition of continuously preserving heat at 30-40 ℃, and continuously stirring for 5-24 hours to obtain a solution II;
wherein, the mass fraction of the adding amount of the cross-linking agent is 1-10%;
3) Standing the obtained solution II for more than 24 hours, and removing impurities by using a centrifuge or a filter to obtain noni fruit liquid;
B. blending
Respectively defoaming the noni fruit liquid and the viscose liquid, then carrying out static mixing, and then defoaming to obtain a blending liquid;
in static mixing, the mass ratio of noni fruit liquid is 1-40%, the mass ratio of viscose liquid is 60-99%, and the content of alpha-fiber in the viscose liquid is 8.5-9.2%;
C. spinning process
Two-bath wet spinning is adopted;
feeding the blending liquid into a spinning machine through a glue supply pipeline, quantitatively feeding the blending liquid by a metering pump, filtering out particle impurities by a candle filter, feeding the blending liquid into a spinneret assembly by a curved pipe, and forming viscose trickles through spinneret holes under pressure;
D. solidification and curing
And (3) solidification: solidifying and molding the viscose trickle in a coagulating bath to obtain a primary strand silk;
wherein the coagulating bath comprises 250-360g/L sodium sulfate, 80-130g/L sulfuric acid, 10-50g/L zinc sulfate and 8-25g/L auxiliary agent, the specific gravity of the coagulating bath and viscose trickle is 1.25-1.32, and the coagulating bath temperature is 40-60 ℃;
curing: after passing through a yarn guiding disc, the primary yarn is bundled and stretched in a curing bath; in the curing bath, the primary yarn is stretched and simultaneously the decomposition and regeneration process are completed to obtain fiber bundles;
E. post-treatment
Cutting off the obtained fiber bundles, and obtaining a noni short fiber primary product after primary acid washing, desulfurization, primary water washing, secondary acid washing, secondary water washing, oiling, dehydration and drying;
and radiating the obtained noni short fiber primary product for 1-10min by adopting ultraviolet rays with the wavelength of 280-400nm to obtain the noni short fiber finished product with the dry breaking strength of more than or equal to 2.10cN/dtex, the wet breaking strength of more than or equal to 1.10cN/dtex and the dry breaking elongation of 17-21%.
2. The preparation method of noni short fiber according to claim 1, wherein in the step 2), the crosslinking agent is 1, 4-butanediol diglycidyl ether and/or ethylene glycol diglycidyl ether.
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