CN115595809A - Acid dye for protein fiber fabric and preparation method thereof - Google Patents
Acid dye for protein fiber fabric and preparation method thereof Download PDFInfo
- Publication number
- CN115595809A CN115595809A CN202211311814.8A CN202211311814A CN115595809A CN 115595809 A CN115595809 A CN 115595809A CN 202211311814 A CN202211311814 A CN 202211311814A CN 115595809 A CN115595809 A CN 115595809A
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- solution
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- cyclodextrin
- titanium dioxide
- chitosan
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- 239000000835 fiber Substances 0.000 title claims abstract description 47
- 239000000980 acid dye Substances 0.000 title claims abstract description 45
- 108090000623 proteins and genes Proteins 0.000 title claims abstract description 40
- 102000004169 proteins and genes Human genes 0.000 title claims abstract description 40
- 239000004744 fabric Substances 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title description 2
- 229920000858 Cyclodextrin Polymers 0.000 claims abstract description 53
- 229920001661 Chitosan Polymers 0.000 claims abstract description 52
- 238000005406 washing Methods 0.000 claims abstract description 41
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000003094 microcapsule Substances 0.000 claims abstract description 27
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- HFHDHCJBZVLPGP-UHFFFAOYSA-N schardinger α-dextrin Chemical compound O1C(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC(C(O)C2O)C(CO)OC2OC(C(C2O)O)C(CO)OC2OC2C(O)C(O)C1OC2CO HFHDHCJBZVLPGP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 13
- 125000005442 diisocyanate group Chemical group 0.000 claims abstract description 8
- -1 carbodiimide compounds Chemical class 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims description 103
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 61
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 43
- 239000000843 powder Substances 0.000 claims description 39
- 238000003756 stirring Methods 0.000 claims description 33
- 239000001116 FEMA 4028 Substances 0.000 claims description 29
- WHGYBXFWUBPSRW-FOUAGVGXSA-N beta-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO WHGYBXFWUBPSRW-FOUAGVGXSA-N 0.000 claims description 29
- 235000011175 beta-cyclodextrine Nutrition 0.000 claims description 29
- 229960004853 betadex Drugs 0.000 claims description 29
- 239000012065 filter cake Substances 0.000 claims description 28
- 238000001914 filtration Methods 0.000 claims description 27
- 238000006243 chemical reaction Methods 0.000 claims description 25
- 229960000583 acetic acid Drugs 0.000 claims description 21
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 18
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 15
- 229920002907 Guar gum Polymers 0.000 claims description 13
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 13
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 13
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 13
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 13
- 238000005282 brightening Methods 0.000 claims description 13
- 239000004202 carbamide Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 238000007872 degassing Methods 0.000 claims description 13
- 239000008367 deionised water Substances 0.000 claims description 13
- 229910021641 deionized water Inorganic materials 0.000 claims description 13
- 239000000665 guar gum Substances 0.000 claims description 13
- 229960002154 guar gum Drugs 0.000 claims description 13
- 235000010417 guar gum Nutrition 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 13
- 239000010687 lubricating oil Substances 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 13
- 239000003086 colorant Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- SJEYSFABYSGQBG-UHFFFAOYSA-M Patent blue Chemical compound [Na+].C1=CC(N(CC)CC)=CC=C1C(C=1C(=CC(=CC=1)S([O-])(=O)=O)S([O-])(=O)=O)=C1C=CC(=[N+](CC)CC)C=C1 SJEYSFABYSGQBG-UHFFFAOYSA-M 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 239000005057 Hexamethylene diisocyanate Substances 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 8
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- UWJJYHHHVWZFEP-UHFFFAOYSA-N pentane-1,1-diol Chemical compound CCCCC(O)O UWJJYHHHVWZFEP-UHFFFAOYSA-N 0.000 claims description 8
- 239000012670 alkaline solution Substances 0.000 claims description 7
- QOSSAOTZNIDXMA-UHFFFAOYSA-N Dicylcohexylcarbodiimide Chemical compound C1CCCCC1N=C=NC1CCCCC1 QOSSAOTZNIDXMA-UHFFFAOYSA-N 0.000 claims description 6
- 235000011054 acetic acid Nutrition 0.000 claims description 4
- 230000001376 precipitating effect Effects 0.000 claims description 3
- ALQLPWJFHRMHIU-UHFFFAOYSA-N 1,4-diisocyanatobenzene Chemical compound O=C=NC1=CC=C(N=C=O)C=C1 ALQLPWJFHRMHIU-UHFFFAOYSA-N 0.000 claims description 2
- FPQQSJJWHUJYPU-UHFFFAOYSA-N 3-(dimethylamino)propyliminomethylidene-ethylazanium;chloride Chemical compound Cl.CCN=C=NCCCN(C)C FPQQSJJWHUJYPU-UHFFFAOYSA-N 0.000 claims description 2
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 2
- 229920001450 Alpha-Cyclodextrin Polymers 0.000 claims description 2
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 2
- HFHDHCJBZVLPGP-RWMJIURBSA-N alpha-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO HFHDHCJBZVLPGP-RWMJIURBSA-N 0.000 claims description 2
- 229940043377 alpha-cyclodextrin Drugs 0.000 claims description 2
- 229940044197 ammonium sulfate Drugs 0.000 claims description 2
- GDSRMADSINPKSL-HSEONFRVSA-N gamma-cyclodextrin Chemical compound OC[C@H]([C@H]([C@@H]([C@H]1O)O)O[C@H]2O[C@@H]([C@@H](O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O[C@H]3O[C@H](CO)[C@H]([C@@H]([C@H]3O)O)O3)[C@H](O)[C@H]2O)CO)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@@H]3O[C@@H]1CO GDSRMADSINPKSL-HSEONFRVSA-N 0.000 claims description 2
- 229940080345 gamma-cyclodextrin Drugs 0.000 claims description 2
- 239000012362 glacial acetic acid Substances 0.000 claims description 2
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000975 dye Substances 0.000 abstract description 9
- 238000004043 dyeing Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- 229910052719 titanium Inorganic materials 0.000 abstract description 3
- 239000010936 titanium Substances 0.000 abstract description 3
- SXRSQZLOMIGNAQ-UHFFFAOYSA-N Glutaraldehyde Chemical compound O=CCCCC=O SXRSQZLOMIGNAQ-UHFFFAOYSA-N 0.000 abstract description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract description 2
- 230000032683 aging Effects 0.000 abstract description 2
- 230000001699 photocatalysis Effects 0.000 abstract description 2
- 238000007146 photocatalysis Methods 0.000 abstract description 2
- 230000001954 sterilising effect Effects 0.000 abstract description 2
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 2
- 235000018102 proteins Nutrition 0.000 description 27
- 230000000052 comparative effect Effects 0.000 description 11
- 238000001132 ultrasonic dispersion Methods 0.000 description 11
- 210000002268 wool Anatomy 0.000 description 9
- 238000000967 suction filtration Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000000844 anti-bacterial effect Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000004040 coloring Methods 0.000 description 3
- 244000303965 Cyamopsis psoralioides Species 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 210000004209 hair Anatomy 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004224 protection Effects 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 241000222122 Candida albicans Species 0.000 description 1
- 241000283707 Capra Species 0.000 description 1
- 102000008186 Collagen Human genes 0.000 description 1
- 108010035532 Collagen Proteins 0.000 description 1
- 108010060231 Insect Proteins Proteins 0.000 description 1
- 102000011782 Keratins Human genes 0.000 description 1
- 108010076876 Keratins Proteins 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 102000014171 Milk Proteins Human genes 0.000 description 1
- 108010011756 Milk Proteins Proteins 0.000 description 1
- 240000000249 Morus alba Species 0.000 description 1
- 235000008708 Morus alba Nutrition 0.000 description 1
- 241000283973 Oryctolagus cuniculus Species 0.000 description 1
- 108010073771 Soybean Proteins Proteins 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229940095731 candida albicans Drugs 0.000 description 1
- 150000001718 carbodiimides Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 235000021239 milk protein Nutrition 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000983 mordant dye Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 229920006297 regenerated protein fiber Polymers 0.000 description 1
- 239000011492 sheep wool Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 235000019710 soybean protein Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/39—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using acid dyes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/12—Processes in which the treating agent is incorporated in microcapsules
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/642—Compounds containing nitrogen
- D06P1/649—Compounds containing carbonamide, thiocarbonamide or guanyl groups
- D06P1/6491—(Thio)urea or (cyclic) derivatives
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/67341—Salts or hydroxides of elements different from the alkaline or alkaline-earth metals or with anions containing those elements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/06—Material containing basic nitrogen containing amide groups using acid dyes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention relates to the technical field of dyes; in particular to an acid dye for protein fiber fabrics and a preparation method thereof. After the cyclodextrin is modified by diisocyanate, the-NCO group on the surface of the cyclodextrin can be combined with the hydroxyl on the surface of the nano titanium dioxide to prepare the cyclodextrin inclusion nano titanium dioxide. The hydroxyl on the surface of the chitosan is activated by carbodiimide compounds, and the slow-release microcapsule with the outer wall of chitosan and the inner core of cyclodextrin inclusion nanometer titanium dioxide is prepared under the action of glutaraldehyde. The acid dye prepared by adding the chitosan microcapsule has excellent level dyeing effect, and the color fastness to washing and the color fastness to sunlight are improved; in addition, the microcapsule inner core is released to the surface of chitosan through slow release action to form a cyclodextrin-nano titanium dioxide-chitosan structure, so that titanium dioxide is prevented from being directly contacted with protein fibers, sterilization and ultraviolet aging resistance can be realized, and the protein fibers can be prevented from being damaged by photocatalysis.
Description
Technical Field
The invention relates to the technical field of dyes, in particular to a preparation method of an acid dye for protein fiber fabrics.
Background
Protein fiber is a textile-processing material that can be generally classified into two types: natural protein fibers and regenerated protein fibers. Wherein, the natural protein fiber mainly comes from animal hair and silk, including keratin fiber such as rabbit hair, goat wool, sheep wool, etc. and insect protein fiber such as mulberry silk, tussah silk, etc.; the regenerated protein material fiber is a novel low-cost and environment-friendly ecological textile processing material, and comprises soybean protein fiber, milk protein fiber, collagen protein fiber and the like. Because the protein fiber has the advantages of silky touch feeling, excellent skin-friendly performance, high moisture absorption, air permeability, heat retention and the like, the protein fiber is a green and environment-friendly medium-high grade textile material.
In alkaline solution, protein fiber can react with alkali, so that salt bonds between peptide chains are broken and even hydrolyzed; protein fibers have strong acid resistance, so that the protein fibers are dyed by mainly using acid dyes, acid mordant dyes and acid mordant-containing dyes. Although the acid dye has the advantages of complete chromatogram, bright color, uniform dyeing and the like, the acid dye also has the problem of poor color fastness to washing and light fastness, so that the invention needs to invent a novel acid dye applied to protein fiber fabrics.
Disclosure of Invention
The invention aims to provide an acid dye for protein fiber fabrics and a preparation method thereof, which aim to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
an acid dye for protein fiber fabric and a preparation method thereof, comprising the following steps:
step 1: under the nitrogen environment, adding nano titanium dioxide powder into an N, N-dimethylacetamide solution, adding diisocyanate after uniformly dispersing by ultrasound, stirring and reacting for 2 hours, then adding cyclodextrin, heating to 70-80 ℃ in a water bath, continuously stirring and reacting for 24-30 hours to obtain a solution A; cooling the solution after the reaction to room temperature, separating out the solution in an acetone solution, and performing suction filtration to obtain a filter cake; dispersing the filter cake in acetone solution, washing and removing impurities, washing with deionized water, filtering, drying and grinding to obtain cyclodextrin inclusion nano titanium dioxide powder;
and 2, step: dissolving chitosan in 1% acetic acid solution, standing for 2 hr, and adding into alkaline solution with injector to form spherical substance; filtering, washing with water to neutrality, adding carbodiimide compounds, and stirring for 1h to obtain a solution B; dissolving cyclodextrin inclusion nano titanium dioxide powder in an N, N-dimethylacetamide solution, adding the solution B after uniform ultrasonic dispersion, heating to 70-80 ℃, stirring for reaction for 2 hours, then adding pentanediol, fixing for 1 hour, and filtering to obtain a filter cake; dispersing the filter cake in an acetone solution for washing, removing impurities, washing with deionized water, filtering, and drying to obtain chitosan microcapsules;
and step 3: dissolving guar gum, ammonium sulfate and acetic acid in water, stirring uniformly, adding urea, brightening lubricating oil, degassing penetrating agent and chitosan microcapsule, and continuously mixing for 1-1.5 h to obtain the acid dye for the protein fiber fabric.
In the step 1, the content of each component in the solution A is 1-2 parts by weight of nano titanium dioxide powder, 2-3 parts by weight of N, N-dimethylacetamide solution, 5-8 parts by weight of diisocyanate and 5-7 parts by weight of cyclodextrin.
Further, the cyclodextrin is any one of alpha cyclodextrin, beta cyclodextrin and gamma cyclodextrin; the diisocyanate is any one of hexamethylene diisocyanate, isophorone diisocyanate, p-phenylene diisocyanate and diphenylmethane diisocyanate.
In the step 2, 6 to 10 parts of chitosan, 20 to 30 parts of acetic acid solution, 10 to 20 parts of alkaline solution, 2 to 3 parts of cyclodextrin inclusion nano titanium dioxide powder, 3 to 5 parts of carbodiimide compound, 40 to 45 parts of N, N-dimethylacetamide solution and 1 to 2 parts of pentanediol by weight.
Further, the carbodiimide-based compound is any one of dicyclohexylcarbodiimide, N' -diisopropylcarbodiimide, and 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride.
Further, it is characterized byThe alkaline solution is NaOH solution, KOH solution or Na solution with the concentration of 1mol/L 2 CO 3 Solution, naHCO 3 Solution, K 2 CO 3 Any of the solutions.
In the step 3, the acid dye comprises 90-95 parts of guar gum, 1-2 parts of ammonium sulfate, 2-4 parts of urea, 1-2 parts of glacial acetic acid, 0.5-1 part of PN brightening lubricating oil, 0.2-0.5 part of S-C degassing penetrating agent, 1-2 parts of water and 0.5-1 part of chitosan microcapsule by weight; the guar gum comprises the following components in percentage by weight: water =1:12.
compared with the prior art, the invention has the following beneficial effects: according to the invention, the cyclodextrin is modified by diisocyanate, the surface of the modified cyclodextrin is rich in-NCO groups and can be combined with hydroxyl groups on the surface of nano titanium dioxide, so that the cyclodextrin-coated titanium dioxide is prepared, and the problems of whitish dye color and reduced dyeing performance caused by uneven dispersion of titanium dioxide in acid dye are effectively solved while the functions of sterilization, ultraviolet resistance and the like of the titanium dioxide are kept. Because the cyclodextrin wrapped on the outer layer of the titanium dioxide is modified, the surface of the cyclodextrin is rich in-NCO groups, and the cyclodextrin can further react with hydroxyl of chitosan. The carbodiimide compound is used for modifying chitosan to activate the hydroxyl on the surface, and the slow release microcapsule with the chitosan on the outer wall and the cyclodextrin inclusion nanometer titanium dioxide on the inner core can be prepared under the action of glutaraldehyde. Because the chitosan has good dispersibility in the dye, the dyeing uniformity effect is better, the cross-linking property is excellent, and the color fastness to washing and the color fastness to sunlight can be improved; in addition, the cyclodextrin-included nano titanium dioxide of the chitosan microcapsule inner core is released to the surface of chitosan through slow release, so that a cyclodextrin-nano titanium dioxide-chitosan sandwich structure is formed, the titanium dioxide is prevented from being directly contacted with protein fibers, and the chitosan microcapsule inner core can sterilize and resist ultraviolet aging and prevent the protein fibers from being damaged by photocatalysis during sunning.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following examples, the main material sources are as follows:
example 1:
step 1: under the nitrogen environment, 1kg of nano titanium dioxide powder is added into 2kg of N, N-dimethylacetamide solution, 5kg of hexamethylene diisocyanate is added after uniform ultrasonic dispersion, 5kg of beta-cyclodextrin is added after stirring reaction is carried out for 2 hours, meanwhile, the temperature is raised to 70 ℃ in a water bath, and the solution A is obtained after continuous stirring and reaction for 24 hours; cooling the solution after the reaction to room temperature, precipitating in an acetone solution, and carrying out suction filtration to obtain a filter cake; dispersing the filter cake in an acetone solution, washing and removing impurities, washing with deionized water, filtering, drying and grinding to obtain beta-cyclodextrin inclusion nano titanium dioxide powder;
step 2: dissolving 6kg of chitosan in 20kg of acetic acid solution with the mass concentration of 1%, standing for 2h, and adding the chitosan into 10kg of NaOH solution with the concentration of 1mol/L by using an injector to form spherical powder; filtering, washing with water to neutrality, adding 3kg of dicyclohexylcarbodiimide, and stirring for 1h to obtain a solution B; dissolving 2kg of beta-cyclodextrin inclusion nano titanium dioxide powder in 40kg of N, N-dimethylacetamide solution, adding the solution into the solution B after uniform ultrasonic dispersion, heating to 70 ℃, stirring for reaction for 2 hours, then adding 1kg of pentanediol, fixing for 1 hour, and filtering to obtain a filter cake; dispersing the filter cake in an acetone solution for washing, removing impurities, washing with deionized water, filtering, and drying to obtain chitosan microcapsules;
and step 3: 90kg of guar gum, 1kg of ammonium sulfate and 1kg of acetic acid are dissolved in 1kg of water, after being uniformly stirred, 2kg of urea, 0.5kg of PN brightening lubricating oil, 0.2kg of S-C degassing penetrating agent, 0.01kg of coloring agent and 0.5kg of chitosan microcapsule are added, and after being continuously mixed for 1 hour, the acid dye for the protein fiber fabric is obtained.
Example 2:
step 1: under the nitrogen environment, 1.3kg of nano titanium dioxide powder is added into 2.7kg of N, N-dimethylacetamide solution, 6kg of hexamethylene diisocyanate is added after uniform ultrasonic dispersion, 5.4kg of beta cyclodextrin is added after stirring and reaction are carried out for 2h, meanwhile, the temperature is raised to 75 ℃ in a water bath, and continuous stirring and reaction are carried out for 25h, so as to obtain solution A; cooling the solution after the reaction to room temperature, precipitating in an acetone solution, and carrying out suction filtration to obtain a filter cake; dispersing the filter cake in an acetone solution, washing and removing impurities, washing with deionized water, filtering, drying and grinding to obtain beta-cyclodextrin inclusion nano titanium dioxide powder;
step 2: dissolving 7kg of chitosan in 24kg of acetic acid solution with the mass concentration of 1%, standing for 2h, and adding the chitosan into 15kg of NaOH solution with the concentration of 1mol/L by using an injector to form spherical powder; filtering, washing with water to neutrality, adding 3.5kg of dicyclohexylcarbodiimide, and stirring for 1h to obtain a solution B; dissolving 2.3kg of beta-cyclodextrin inclusion nano titanium dioxide powder in 42kg of N, N-dimethylacetamide solution, adding the solution into the solution B after uniform ultrasonic dispersion, heating to 75 ℃, stirring for reaction for 2 hours, then adding 1.7kg of pentanediol, fixing for 1 hour, and filtering to obtain a filter cake; dispersing the filter cake in an acetone solution for washing, removing impurities, washing with deionized water, filtering, and drying to obtain chitosan microcapsules;
and step 3: 92kg of guar gum, 1.3kg of ammonium sulfate and 1.5kg of acetic acid are dissolved in 1.2kg of water, after being uniformly stirred, 2.9kg of urea, 0.75kg of PN brightening lubricating oil, 0.3kg of S-C degassing penetrating agent, 0.03kg of coloring agent and 0.8kg of chitosan microcapsule are added, and after being continuously mixed for 1.2 hours, the acid dye for the protein fiber fabric is obtained.
Example 3:
step 1: under the nitrogen environment, 1.8kg of nano titanium dioxide powder is added into 2.8kg of N, N-dimethylacetamide solution, 7kg of hexamethylene diisocyanate is added after ultrasonic dispersion is uniform, stirring reaction is carried out for 2h, then 5.6kg of beta cyclodextrin is added, simultaneously water bath is heated to 76 ℃, stirring is carried out continuously, and reaction is carried out for 28h, so as to obtain solution A; cooling the solution after the reaction to room temperature, separating out the solution in an acetone solution, and performing suction filtration to obtain a filter cake; dispersing the filter cake in an acetone solution, washing and removing impurities, washing with deionized water, filtering, drying and grinding to obtain beta-cyclodextrin inclusion nano titanium dioxide powder;
step 2: dissolving 9kg of chitosan in 28kg of acetic acid solution with the mass concentration of 1%, standing for 2h, and adding into 18kg of NaOH solution with the concentration of 1mol/L by using an injector to form spherical powder; filtering, washing with water to neutrality, adding 4.5kg of dicyclohexylcarbodiimide, and stirring for 1h to obtain a solution B; dissolving 2.8kg of beta cyclodextrin inclusion nano titanium dioxide powder in 44kg of N, N-dimethylacetamide solution, adding the solution into the solution B after uniform ultrasonic dispersion, heating to 75 ℃, stirring for reaction for 2 hours, then adding 1.9kg of pentanediol, fixing for 1 hour, and filtering to obtain a filter cake; dispersing the filter cake in an acetone solution for washing, removing impurities, washing with deionized water, filtering, and drying to obtain chitosan microcapsules;
and step 3: 94kg of guar paste, 1.7kg of ammonium sulfate and 1.8kg of acetic acid are dissolved in 1.5kg of water, after uniform stirring, 3.6kg of urea, 0.9kg of PN brightening lubricating oil, 0.4kg of S-C degassing penetrating agent, 0.04kg of coloring agent and 0.9kg of chitosan microcapsule are added, and after continuous mixing for 1.3 hours, the acid dye for the protein fiber fabric is obtained.
Example 4:
step 1: under the nitrogen environment, 2kg of nano titanium dioxide powder is added into 3kg of N, N-dimethylacetamide solution, 8kg of hexamethylene diisocyanate is added after uniform ultrasonic dispersion, 7kg of beta cyclodextrin is added after stirring reaction is carried out for 2 hours, simultaneously the temperature is raised to 80 ℃ in a water bath, and the solution A is obtained after continuous stirring and reaction for 30 hours; cooling the solution after the reaction to room temperature, separating out the solution in an acetone solution, and performing suction filtration to obtain a filter cake; dispersing the filter cake in an acetone solution, washing and removing impurities, washing with deionized water, filtering, drying and grinding to obtain beta-cyclodextrin inclusion nano titanium dioxide powder;
step 2: dissolving 10kg of chitosan in 30kg of acetic acid solution with the mass concentration of 1%, standing for 2h, and adding into 20kg of NaOH solution with the concentration of 1mol/L by using an injector to form spherical powder; filtering, washing with water to neutrality, adding 5kg of dicyclohexylcarbodiimide, and stirring for 1h to obtain a solution B; dissolving 3kg of beta-cyclodextrin inclusion nano titanium dioxide powder in 45kg of N, N-dimethylacetamide solution, adding the solution into the solution B after uniform ultrasonic dispersion, heating to 75 ℃, stirring for reaction for 2 hours, then adding 2kg of pentanediol, fixing for 1 hour, and filtering to obtain a filter cake; dispersing the filter cake in an acetone solution for washing, removing impurities, washing with deionized water, filtering, and drying to obtain chitosan microcapsules;
and step 3: dissolving 95kg of guar paste, 2kg of ammonium sulfate and 2kg of acetic acid in 2kg of water, uniformly stirring, adding 4kg of urea, 1kg of PN brightening lubricating oil, 0.5kg of S-C degassing penetrating agent, 0.05kg of coloring agent and 1kg of chitosan microcapsule, and continuously mixing for 1.5 hours to obtain the acid dye for the protein fiber fabric.
Comparative example 1:
the acid dyes are prepared using conventional methods.
Dissolving 90kg of guar gum, 1kg of ammonium sulfate and 1kg of acetic acid in 1kg of water, stirring uniformly, adding 2kg of urea, 0.5kg of PN brightening lubricating oil, 0.2kg of S-C degassing penetrating agent and 0.01kg of coloring agent, and continuously mixing for 1h to obtain the acid dye for the protein fiber fabric.
Comparative example 2:
only adding beta cyclodextrin to include the nano titanium dioxide powder to prepare the acid dye.
Step 1: under the nitrogen environment, 1.3kg of nano titanium dioxide powder is added into 2.7kg of N, N-dimethylacetamide solution, 6kg of hexamethylene diisocyanate is added after uniform ultrasonic dispersion, 5.4kg of beta cyclodextrin is added after stirring and reaction are carried out for 2h, meanwhile, the temperature is raised to 75 ℃ in a water bath, and continuous stirring and reaction are carried out for 25h, so as to obtain solution A; cooling the solution after the reaction to room temperature, separating out the solution in an acetone solution, and performing suction filtration to obtain a filter cake; dispersing the filter cake in an acetone solution, washing and removing impurities, washing with deionized water, filtering, drying and grinding to obtain beta-cyclodextrin inclusion nano titanium dioxide powder;
step 2: 92kg of guar gum, 1.3kg of ammonium sulfate and 1.5kg of acetic acid are dissolved in 1.2kg of water, after being uniformly stirred, 2.9kg of urea, 0.75kg of PN brightening lubricating oil, 0.3kg of S-C degassing penetrating agent, 0.03kg of coloring agent and 0.8kg of chitosan microcapsule are added, and after being continuously mixed for 1.2 hours, the acid dye for the protein fiber fabric is obtained.
Comparative example 3:
acid dyes were prepared by adding only chitosan.
94kg of guar gum, 1.7kg of ammonium sulfate and 1.8kg of acetic acid are dissolved in 1.5kg of water, after being uniformly stirred, 3.6kg of urea, 0.9kg of PN brightening lubricating oil, 0.4kg of S-C degassing penetrating agent, 0.04kg of coloring agent and 0.9kg of chitosan are added, and after being continuously mixed for 1.3 hours, the acid dye for the protein fiber fabric is obtained.
Comparative example 4:
directly mixing the nano titanium dioxide powder, beta cyclodextrin and nano titanium dioxide to prepare the acid dye.
Dissolving 95kg of guar gum, 2kg of ammonium sulfate and 2kg of acetic acid in 2kg of water, stirring uniformly, adding 4kg of urea, 1kg of PN brightening lubricating oil, 0.5kg of S-C degassing penetrating agent, 0.3kg of nano titanium dioxide, 0.3kg of beta-cyclodextrin, 0.05kg of coloring agent and 0.4kg of chitosan microcapsule, and continuously mixing for 1.5h to obtain the acid dye for the protein fiber fabric.
Comparative example 5:
directly mixing beta cyclodextrin inclusion nanometer titanium dioxide powder and chitosan to prepare the acid dye.
Step 1: under the nitrogen environment, 2kg of nano titanium dioxide powder is added into 3kg of N, N-dimethylacetamide solution, 8kg of hexamethylene diisocyanate is added after uniform ultrasonic dispersion, 7kg of beta cyclodextrin is added after stirring reaction is carried out for 2 hours, simultaneously the temperature is raised to 80 ℃ in a water bath, and the solution A is obtained after continuous stirring and reaction for 30 hours; cooling the solution after the reaction to room temperature, separating out the solution in an acetone solution, and performing suction filtration to obtain a filter cake; dispersing the filter cake in an acetone solution, washing and removing impurities, washing with deionized water, filtering, drying and grinding to obtain beta-cyclodextrin inclusion nano titanium dioxide powder;
and step 3: dissolving 95kg of guar gum, 2kg of ammonium sulfate and 2kg of acetic acid in 2kg of water, stirring uniformly, adding 4kg of urea, 1kg of PN brightening lubricating oil, 0.5kg of S-C degassing penetrating agent, 0.05kg of coloring agent and 0.5kg of beta-cyclodextrin inclusion nano titanium dioxide powder chitosan, and continuously mixing for 1.5h to obtain the acid dye for the protein fiber fabric.
Experiment: the acid dyes prepared in examples 1 to 4 and comparative examples 1 to 5 were used for dyeing wool fabrics by the following methods: bath ratio of 1:20, soaking the wool fabric in a dye at 50 ℃ for 15min, heating to 95 ℃, keeping the temperature for 45min, washing the wool fabric with warm water at 50 ℃ for 1 time, washing the wool fabric with cold water for 2 times, drying the wool fabric, and testing the washing color fastness, the light fastness, the antibacterial performance and the antistatic performance of the dyed wool fabric. Wherein:
washing color fastness: according to the regulation of GB/T12490-1990, the test is carried out by adopting the experimental condition of A1S;
color fastness to sunlight: testing was carried out according to the provisions of method 3 in GB/T8427-1998;
antibacterial property: selecting an artificial lawn with the diameter of 5cm, placing the artificial lawn into a Candida albicans culture dish at the temperature of 30 ℃, testing the colony count after 48 hours, and calculating the antibacterial rate;
antistatic performance: and testing the surface resistivity according to GB/T22042-2008, and further characterizing the antistatic property of the dyed wool fiber fabric.
And (4) conclusion: comparative example 1 as a blank control, the data of examples 1-4 show that the acid dye prepared by the method has excellent performance after dyeing wool fiber fabrics. By taking the example 1 as a reference, the comparative example 1 shows that the chitosan microcapsule can improve the coloring effect of the acid dye, improve the color fastness to washing and the color fastness to sunlight, and simultaneously have better antibacterial and antistatic effects; by taking the example 2 as a reference, the data of the comparative example 2 show that the coloring performance of the acid dye is improved to a certain extent by adding the beta cyclodextrin inclusion nanometer titanium dioxide powder; by taking the example 3 as a reference, the data of the comparative example 3 show that the coloring performance of the acid dye is improved to a certain extent by adding the chitosan; with example 4 as a reference, after the nano titanium dioxide powder, the beta cyclodextrin and the nano titanium dioxide are simply mixed, the nano titanium dioxide is generally dyed due to poor dispersion performance in the dye, but the problem cannot be caused after the beta cyclodextrin is used for including the nano titanium dioxide powder in example 4, so that the dyeing effect of the acid dye is effectively improved; by taking the example 5 as a reference, the data of the comparative example 5 show that the chitosan microcapsule is used for preparing the dye, so that the chitosan and beta cyclodextrin inclusion nanometer titanium dioxide powder can be more uniformly dispersed in the dye, and the uniform dyeing effect of the coating is better; the chitosan has crosslinking property, and the chitosan microcapsule also has a slow release effect, can slowly release beta cyclodextrin in the chitosan microcapsule to the outer side, and the beta cyclodextrin comprises nano titanium dioxide powder to form a cyclodextrin-titanium dioxide-chitosan sandwich structure, so that the chitosan microcapsule can effectively resist ultraviolet rays, can prevent titanium dioxide from damaging protein fibers of fabrics under the catalytic action of visible light, and further protects the fabrics.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A preparation method of an acid dye for protein fiber fabric is characterized by comprising the following steps: the method comprises the following steps:
step 1: dispersing nano titanium dioxide powder in N, N-dimethylacetamide solution under nitrogen environment, adding diisocyanate, reacting for 2h, adding cyclodextrin, and reacting for 24-30 h in water bath at 70-80 ℃ to obtain solution A; cooling, precipitating in acetone solution and filtering to obtain filter cake; dispersing the filter cake in acetone solution, washing and removing impurities, washing with deionized water, filtering, drying and grinding to obtain cyclodextrin inclusion nano titanium dioxide powder;
step 2: dissolving chitosan in an acetic acid solution, standing for 2 hours, and adding the solution into an alkaline solution; filtering, washing with water to neutrality, adding carbodiimide compounds, and stirring to obtain a solution B; dispersing cyclodextrin inclusion nanometer titanium dioxide powder in N, N-dimethylacetamide solution, adding into the solution B, heating and stirring for reaction for 2 hours, adding pentanediol, fixing for 1 hour, and filtering to obtain a filter cake; dispersing the filter cake in an acetone solution, washing, filtering and drying to obtain chitosan microcapsules;
and step 3: dissolving guar gum, ammonium sulfate and acetic acid in water, stirring uniformly, adding urea, brightening lubricating oil, degassing penetrating agent, coloring agent and chitosan microcapsule, and continuously mixing for 1-1.5 h to obtain the acid dye for the protein fiber fabric.
2. A process for the preparation of acid dyes for protein fibre fabrics according to claim 1, characterized in that: in the step 1, the content of each component in the solution A is 1-2 parts by weight of nano titanium dioxide powder, 2-3 parts by weight of N, N-dimethylacetamide solution, 5-8 parts by weight of diisocyanate and 5-7 parts by weight of cyclodextrin.
3. A process for the preparation of acid dyes for protein fibre fabrics according to claim 1, characterized in that: in the step 1, the cyclodextrin is any one of alpha cyclodextrin, beta cyclodextrin and gamma cyclodextrin; the diisocyanate is any one of hexamethylene diisocyanate, isophorone diisocyanate, p-phenylene diisocyanate and diphenylmethane diisocyanate.
4. A process for the preparation of acid dyes for protein fiber fabrics as claimed in claim 1, characterized in that: in the step 2, 6 to 10 parts of chitosan, 20 to 30 parts of acetic acid solution, 10 to 20 parts of alkaline solution, 2 to 3 parts of cyclodextrin inclusion nano titanium dioxide powder, 3 to 5 parts of carbodiimide compound, 40 to 45 parts of N, N-dimethylacetamide solution and 1 to 2 parts of pentanediol by weight.
5. A process for the preparation of acid dyes for protein fibre fabrics according to claim 1, characterized in that: in the step 2, the carbodiimide compound is any one of dicyclohexylcarbodiimide, N' -diisopropylcarbodiimide and 1- (3-dimethylaminopropyl) -3-ethylcarbodiimide hydrochloride; the alkaline solution is NaOH solution, KOH solution or Na 2 CO 3 Solution, naHCO 3 Solution, K 2 CO 3 Any of the solutions.
6. A process for the preparation of acid dyes for protein fiber fabrics as claimed in claim 1, characterized in that: in the step 3, the acid dye comprises, by weight, 90-95 parts of guar gum, 1-2 parts of ammonium sulfate, 2-4 parts of urea, 1-2 parts of glacial acetic acid, 0.5-1 part of brightening lubricating oil, 0.2-0.5 part of degassing penetrating agent, 0.01-0.05 part of coloring agent and 0.5-1 part of chitosan microcapsule.
7. A process for the preparation of acid dyes for protein fibre fabrics according to claim 1, characterized in that: in step 3, the guar gum paste comprises the following components in percentage by weight: water =1:12.
8. an acid dye prepared by the method for preparing an acid dye for protein fiber fabrics according to claims 1-7.
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