CN109629025A - A kind of coloured anti-bacterial Lyocell fiber and preparation method thereof - Google Patents
A kind of coloured anti-bacterial Lyocell fiber and preparation method thereof Download PDFInfo
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- CN109629025A CN109629025A CN201811637409.9A CN201811637409A CN109629025A CN 109629025 A CN109629025 A CN 109629025A CN 201811637409 A CN201811637409 A CN 201811637409A CN 109629025 A CN109629025 A CN 109629025A
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- 229920000433 Lyocell Polymers 0.000 title claims abstract description 57
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 31
- 239000000835 fiber Substances 0.000 claims abstract description 36
- 150000001875 compounds Chemical class 0.000 claims abstract description 27
- 108010022355 Fibroins Proteins 0.000 claims abstract description 25
- 241000222122 Candida albicans Species 0.000 claims abstract description 5
- 241000588724 Escherichia coli Species 0.000 claims abstract description 5
- 229940095731 candida albicans Drugs 0.000 claims abstract description 5
- 241000191967 Staphylococcus aureus Species 0.000 claims abstract description 4
- 239000011159 matrix material Substances 0.000 claims abstract description 3
- 239000000243 solution Substances 0.000 claims description 25
- 238000009987 spinning Methods 0.000 claims description 20
- 239000012452 mother liquor Substances 0.000 claims description 12
- 229920002678 cellulose Polymers 0.000 claims description 10
- 239000001913 cellulose Substances 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000010348 incorporation Methods 0.000 claims description 4
- AMBQHHVBBHTQBF-UHFFFAOYSA-N Loganin Natural products C12C(C)C(O)CC2C(C(=O)OC)=COC1OC1OC(CO)C(O)C(O)C1O AMBQHHVBBHTQBF-UHFFFAOYSA-N 0.000 claims description 3
- AMBQHHVBBHTQBF-UOUCRYGSSA-N loganin Chemical compound O([C@@H]1OC=C([C@H]2C[C@H](O)[C@H](C)[C@H]21)C(=O)OC)[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O AMBQHHVBBHTQBF-UOUCRYGSSA-N 0.000 claims description 3
- 239000012460 protein solution Substances 0.000 claims description 3
- ZVXWFPTVHBWJOU-AWQYILTISA-N (1s,4as,5r,7as)-5-hydroxy-7-(hydroxymethyl)-1-[(2s,3r,4s,5s,6r)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-1,4a,5,7a-tetrahydrocyclopenta[c]pyran-4-carboxylic acid Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@H]1[C@@H]2C(CO)=C[C@@H](O)[C@@H]2C(C(O)=O)=CO1 ZVXWFPTVHBWJOU-AWQYILTISA-N 0.000 claims description 2
- IBFYXTRXDNAPMM-BVTMAQQCSA-N Geniposide Chemical compound O([C@@H]1OC=C([C@@H]2[C@H]1C(=CC2)CO)C(=O)OC)[C@@H]1O[C@H](CO)[C@@H](O)[C@H](O)[C@H]1O IBFYXTRXDNAPMM-BVTMAQQCSA-N 0.000 claims description 2
- IBFYXTRXDNAPMM-FZEIBHLUSA-N Geniposide Natural products COC(=O)C1=CO[C@@H](O[C@H]2O[C@@H](CO)[C@H](O)[C@@H](O)[C@@H]2O)[C@H]2[C@@H]1CC=C2CO IBFYXTRXDNAPMM-FZEIBHLUSA-N 0.000 claims description 2
- 235000019116 Paederia foetida Nutrition 0.000 claims description 2
- 240000008379 Paederia scandens Species 0.000 claims description 2
- BZPMXJKRKXDRID-UOIKKKDVSA-N Scandoside Natural products OC[C@H]1O[C@@H](O[C@H]2CC=C([C@@H]3[C@@H](O)C=C(CO)[C@H]23)C(=O)O)[C@H](O)[C@@H](O)[C@@H]1O BZPMXJKRKXDRID-UOIKKKDVSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- VGLLGNISLBPZNL-RBUKDIBWSA-N arborescoside Natural products O=C(OC)C=1[C@@H]2C([C@H](O[C@H]3[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O3)OC=1)=C(CO)CC2 VGLLGNISLBPZNL-RBUKDIBWSA-N 0.000 claims description 2
- QCVGEOXPDFCNHA-UHFFFAOYSA-N 5,5-dimethyl-2,4-dioxo-1,3-oxazolidine-3-carboxamide Chemical compound CC1(C)OC(=O)N(C(N)=O)C1=O QCVGEOXPDFCNHA-UHFFFAOYSA-N 0.000 claims 1
- 102000002322 Egg Proteins Human genes 0.000 claims 1
- 108010000912 Egg Proteins Proteins 0.000 claims 1
- 235000014103 egg white Nutrition 0.000 claims 1
- 210000000969 egg white Anatomy 0.000 claims 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 1
- -1 ether terpene compound Chemical class 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 235000007586 terpenes Nutrition 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 23
- 239000002904 solvent Substances 0.000 abstract description 13
- 239000012752 auxiliary agent Substances 0.000 abstract description 8
- 238000004043 dyeing Methods 0.000 abstract description 7
- 238000011084 recovery Methods 0.000 abstract description 7
- 238000005406 washing Methods 0.000 abstract description 7
- 230000003115 biocidal effect Effects 0.000 abstract description 4
- 238000007380 fibre production Methods 0.000 abstract description 2
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 230000004044 response Effects 0.000 abstract description 2
- LFTLOKWAGJYHHR-UHFFFAOYSA-N N-methylmorpholine N-oxide Chemical compound CN1(=O)CCOCC1 LFTLOKWAGJYHHR-UHFFFAOYSA-N 0.000 description 12
- 239000000049 pigment Substances 0.000 description 11
- 230000008569 process Effects 0.000 description 9
- 238000004040 coloring Methods 0.000 description 6
- 239000000975 dye Substances 0.000 description 6
- 239000006185 dispersion Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 4
- 229920003043 Cellulose fiber Polymers 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 239000002270 dispersing agent Substances 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000002166 wet spinning Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000004627 regenerated cellulose Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- FFRBMBIXVSCUFS-UHFFFAOYSA-N 2,4-dinitro-1-naphthol Chemical compound C1=CC=C2C(O)=C([N+]([O-])=O)C=C([N+]([O-])=O)C2=C1 FFRBMBIXVSCUFS-UHFFFAOYSA-N 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 241000191940 Staphylococcus Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001112 coagulating effect Effects 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000000982 direct dye Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000985 reactive dye Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000004753 textile Substances 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
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/04—Pigments
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The present invention provides a kind of coloured anti-bacterial Lyocell fiber, and the fiber is made of Lyocell fiber matrix and fibroin albumen/iridoid compound；The present invention also provides the preparation method of above-mentioned fiber, function Lyocell fiber of the invention can be produced based on conventional Lyocell fiber production line, and method is succinct, be suitble to large-scale production；It can develop the color after the iridoid compound that the present invention uses, with albumen qualitative response, also there are antibacterial characteristics.Therefore, Lyocell fiber prepared by the present invention has both coloured and antibacterial functions, also, even dyeing, does not add auxiliary agent, small on fibre strength influence, does not influence Lyocell fiber solvent recovery system；Fiber prepared by the present invention, equal to the bacteriostasis rate of staphylococcus aureus, Escherichia coli and Candida albicans >=80%, antibiotic rate >=70% after washing 50 times.
Description
Technical field
The invention belongs to fabric manufacturing area, it is related to a kind of coloured anti-bacterial Lyocell fiber and preparation method thereof.
Background technique
Lyocell fiber is the direct solvent with cellulose --- N-methylmorpholine-N- oxide (NMMO) aqueous solution is
Solvent, the regenerated celulose fibre prepared through dry-jet wet spinning.Compared to regenerated celulose fibres such as traditional viscose rayons
Kind, concise production process, the green of Lyocell fiber, the mechanical property of fiber is more preferable, and snugness of fit is higher.In recent years
The yield of Lyocell fiber expands rapidly, and shows the powerful market competitiveness, will become another important regenerated cellulose
Fiber species.
The dyeing of fiber is an essential step during textile process.As all cellulose fibres,
Lyocell fiber also uses direct dyes or reactive dye to be dyed.However, dyeing course belongs to fiber post-processing, work
Skill is tediously long, cumbersome.It is the effective means to solve the above problems by regenerated celulose fibre forming and dyeing integration.There is research will
Dyestuff is directly added into spinning solution, and then spinning technique, and colored regenerated cellulose fiber is made, and this method is known as stoste
Color.
The powder pigment of surface modification treatment is added NMMO and spun by Chinese patent (number of patent application 201511020327.6)
Then dispersing agent, grinding distribution, filtering preparation NMMP base superfine pigment mill base is added in silk liquid.Because powder pigment is insoluble
Solid granulates, be that suspended state is presented in NMMP base superfine pigment mill base, granulated solid pigment is easy to happen group
It is poly-, cause the dispersion of dyestuff uneven, dyeing color uniformity is poor, the weakened of fiber.
Although auxiliary agent is added can improve the reunion of granulated solid pigment to a certain degree, the addition of auxiliary agent can pollute
Lyocell fiber spinning system causes the degradation of NMMO and the reduction of fibre property, influences Lyocell fiber solvent recovery body
System.
Chinese patent CN102127312A discloses a kind of ultra-fine coated pigment mill base of Lyocell fiber original liquid coloring
Preparation method is prepared for superfine pigment dispersion by high speed dispersion, then to system with polymerizable dispersing agent for main auxiliary agent
Middle dropwise addition initiator and comonomer continue high speed dispersion, and temperature reaction for a period of time, makes polymer overmold to surface of pigments,
The dispersion stabilization of the ultra-fine coated pigment mill base of the Lyocell fiber original liquid coloring of preparation is high, with Lyocell fiber spinning solution
Compatibility is good, spinnability is high, and the Lyocell fiber coloring wire coloring that spinning obtains uniformly, pure color light, color fastness it is excellent,
Eliminate subsequent dyeing process.But the patent joined polymerizable dispersing agent, anionic surfactant, initiator and copolymerization
The auxiliary agents such as monomer, the addition of auxiliary agent will cause the degradation of NMMO, drop low-fiber mechanical performance.
In summary, current original liquid coloring method produces coloured Lyocell fiber and has the following technical problems:
1) granulated solid pigment is easy to reunite, and is unevenly distributed in fibrous inside, therefore it is poor to colour homogeneity.
2) addition of auxiliary agent can pollute Lyocell fiber spinning system, cause the degradation of NMMO and the reduction of fibre property,
Influence Lyocell fiber solvent recovery system.
3) active force of dyestuff and cellulosic molecule interchain is weaker, easy to fall off in use process.
Summary of the invention
To solve the shortcomings of the prior art, the present invention provides a kind of coloured anti-bacterial Lyocell fiber and its preparation side
Method realizes following goal of the invention:
(1) uniform coloring；
(2) small on fibre strength influence, Lyocell fiber solvent recovery system is not influenced；
(3) dyestuff is not easily to fall off in use process.
In order to achieve the above objectives, the technical solution adopted by the present invention are as follows:
A kind of function Lyocell fiber is mainly made of Lyocell fiber matrix and fibroin albumen/iridoid compound.
Coloured anti-bacterial Lyocell fiber as described above, color fastness are 4 ~ 5 grades；To staphylococcus aureus, Escherichia coli
>=80% with the bacteriostasis rate of Candida albicans, antibiotic rate >=70% after washing 50 times；Filament number is 0.8 ~ 5.0dtex,
Breaking strength is 1.5 ~ 4.5cN/dtex.
The total mass ratio that the fibroin albumen/iridoid compound accounts for function Lyocell fiber is 0.5 ~ 1%.
The present invention also provides the methods for preparing function Lyocell fiber as described above, based on conventional Lyocell fiber
Pretreatment-the dissolution-of production process, i.e. pulp is dry to squirt method-fiber post-processing-solvent recovery process.Have in dissolution phase addition
Color antibacterial mother liquor.Specifically comprise the following steps:
(1) preparation of coloured anti-bacterial mother liquor
Silk fibroin protein solution is mixed with iridoid compound solution, is quickly stirred under certain frequency.It is mixed in stirring
While conjunction, it is slowly injected into PBS solution, until the pH of solution is 7.5.
The mixed process, the mass concentration of fibroin albumen are 1 ~ 4 %, and the concentration of iridoid compound is 1 ~ 4%.
The mass ratio of fibroin albumen and iridoid compound is 1:1 ~ 1.5.
The mixed process, is the mixed process under quick stirring, and stirring frequency is 400 ~ 800Hz, incorporation time 1
~2 h。
The mixed process adjusts pH to 7.5 using PBS solution, and mixing temperature is 37 DEG C.
One kind of the iridoid compound, in particular to geniposide, loganin, Paederia scandens acid, Scandoside.
(2) preparation of colored fibre element spinning solution
In premixer, cellulose pulp and NMMO solvent are mixed to form suspension, the ground feeding stoste system of suspension
Standby device.Meanwhile stoste preparation facilities is added in coloured anti-bacterial mother liquor.Stoste preparation is more using the removal of high viscosity thin-film technique
Remaining moisture, dissolves cellulose sufficiently.
The NMMO solvent, the mass ratio of NMMO are 50%.
The colored fibre element spinning solution, the mass fraction of cellulose is 4 ~ 10%, containing water quality less than 14%.
The total mass ratio that the fibroin albumen/iridoid compound accounts for function Lyocell fiber is 0.5 ~ 1 %.
(3) spinning technique of composite fibre
Spinning solution is sent to spinning process after filtering, is shaped by dry-jet wet spinning method.Through metering, extrusion, solidifies, leads
It stretches, cut off, washing, post-processing, drying coloured anti-bacterial Lyocell fiber finished product is made.
The fibroin albumen and iridoid of solution state can not be solid by water-setting, therefore enter Lyocell fiber and produce
It can be lost after line and enter coagulating bath.And fibroin albumen and iridoid are crosslinked and form non-aqueous fibroin egg by the present invention
White/iridoid compound can be directly added into Lyocell fiber spinning solution, not be lost and be stabilized in process of setting
In fiber.
Above-mentioned technical proposal is taken, the present invention obtains following beneficial effect
(1) function Lyocell fiber of the invention can be produced based on conventional Lyocell fiber production line, and method is succinct, be fitted
Close large-scale production.
(2) iridoid compound that uses of the present invention, and can develop the color after albumen qualitative response, also have antibacterial characteristics.Cause
This, Lyocell fiber prepared by the present invention has both coloured and antibacterial functions, also, even dyeing, auxiliary agent is not added, to fiber
Intensity effect is small, does not influence Lyocell fiber solvent recovery system.
Fiber prepared by the present invention, using CIELAB color difference formula, color difference is 0.4 ~ 0.7 CIELAB unit；To golden yellow
The bacteriostasis rate of staphylococcus, Escherichia coli and Candida albicans >=80%, antibiotic rate >=70% after washing 50 times；Monofilament is fine
Degree is 0.8 ~ 5.0dtex, and breaking strength is 1.5 ~ 4.5cN/dtex, equilibrium moisture regain 11-12.5%.
Antibacterial, colored fibre are prepared in the prior art, are generally required and are separately added into dyestuff, antibacterial material, cause additive
The type and content of matter increase, and dyestuff and antibacterial material can all cause the reduction of the mechanical strength of fiber.
(3) function Lyocell fiber prepared by the present invention, fibroin albumen/iridoid compound disperse in fibrous inside
Uniformly, there are hydrogen bond actions between functional group and cellulosic molecule, and interaction force is stronger, can muchly holding act on；This
The fiber of preparation is invented, color fastness is 4 ~ 5 grades.
Specific embodiment
A kind of preparation method of the coloured anti-bacterial regenerated celulose fibre of embodiment 1
Based on the production process of conventional Lyocell fiber, i.e., pulp pretreatment-dissolution-is dry squirts method-fiber post-processing-solvent
Recovery process.Coloured anti-bacterial mother liquor is added in dissolution phase.Specifically comprise the following steps:
(1) preparation of coloured anti-bacterial mother liquor
Silk fibroin water solution is mixed with iridoid compound aqueous solution, is quickly stirred, is being stirred under certain frequency
While mixing mixing, it is slowly injected into PBS solution, until the pH of solution is 7.5；Stirring frequency is 600Hz, and mixing temperature is 37 DEG C；
Incorporation time is 1.5 h, is obtained containing fibroin albumen/iridoid compound coloured anti-bacterial mother liquor.
The coloured anti-bacterial mother liquor, fibroin albumen/iridoid compound mass content are 2.2%；
The mass concentration of the silk fibroin water solution is 2 %, and the mass concentration of the iridoid compound aqueous solution is
2.5%；
The mass ratio of the fibroin albumen and iridoid compound is 1:1.2.
The iridoid compound is loganin.
(2) preparation of colored fibre element spinning solution
In premixer, cellulose pulp and NMMO solvent are mixed to form suspension, the ground feeding stoste system of suspension
Standby device；Meanwhile stoste preparation facilities is added in coloured anti-bacterial mother liquor, excessive moisture is removed using high viscosity thin-film technique, is made
Cellulose sufficiently dissolves, and colored fibre element spinning solution is prepared；
The NMMO solvent is the aqueous solution of NMMO, and wherein the mass ratio of NMMO is 50%.
The colored fibre element spinning solution, the mass fraction of cellulose is 8%, containing water quality less than 14%；
Fibroin albumen/iridoid compound in the coloured anti-bacterial mother liquor, the mass ratio for accounting for cellulose is 0.8%.
(3) spinning technique of composite fibre
Spinning solution is sent to spinning process after filtering, is shaped by dry-jet wet spinning method.Through metering, extrusion, solidifies, leads
It stretches, cut off, washing, post-processing, drying coloured anti-bacterial Lyocell fiber finished product is made.
Coloured anti-bacterial Lyocell fiber prepared by the present invention, color fastness are 5 grades；Using CIELAB color difference formula, value of chromatism
For 0.4 CIELAB unit；Equal to the bacteriostasis rate of staphylococcus aureus, Escherichia coli and Candida albicans >=80%, it is washing
Antibiotic rate >=70% after washing 50 times；Filament number is 2.0dtex, and doing breaking strength is 3.5cN/dtex；Doing the strong coefficient of variation is
0.5%；The skin affinity of the fiber is good, equilibrium moisture regain 12.5%.
The preparation of the common Lyocell fiber of embodiment 2
Coloured anti-bacterial mother liquor is not added, and the preparation method is the same as that of Example 1 for other, prepares Lyocell fiber, and filament number is
2.0dtex, doing breaking strength is 3.5cN/dtex, equilibrium moisture regain 10.5%.
Embodiment 3-6
On that basis of example 1, incorporation time, the stirring frequency for only changing the step (1), carry out analysis experiment, preparation
The results of property of 2.0dtex fiber is shown in Table 1.
Table 1
As it can be seen that embodiment 1 is most preferred embodiment.
Embodiment 7-10
On that basis of example 1, only change fibroin albumen/iridoid compound and account for the mass ratio of Lyocell fiber, fibroin egg
The white mass ratio with iridoid compound, carries out analysis experiment, the results of property of the 2.0dtex fiber of preparation is shown in Table 2.
Table 2
As it can be seen that embodiment 1 is preferred embodiment.
Claims (9)
1. a kind of coloured anti-bacterial Lyocell fiber, it is characterised in that: the fiber, by Lyocell fiber matrix and fibroin egg
White/iridoid compound composition.
2. a kind of coloured anti-bacterial Lyocell fiber according to claim 1, it is characterised in that: the fibroin albumen/cyclenes
The total mass ratio that ether terpene compound accounts for Lyocell fiber is 0.5 ~ 1%；The mass ratio of fibroin albumen and iridoid compound is
1: 1~1.5。
3. a kind of coloured anti-bacterial Lyocell fiber according to claim 1, it is characterised in that: the Lyocell fiber,
Color fastness is 4 ~ 5 grades, equal to the bacteriostasis rate of staphylococcus aureus, Escherichia coli and Candida albicans >=80%；Using CIELAB
Colour difference formula, value of chromatism are 0.4 ~ 0.7 CIELAB unit.
4. a kind of preparation method of coloured anti-bacterial Lyocell fiber, it is characterised in that: the preparation method, including coloured anti-bacterial
The preparation of mother liquor, the preparation of colored fibre element spinning solution.
5. a kind of preparation method of coloured anti-bacterial Lyocell fiber according to claim 4, it is characterised in that: described to have
The preparation of color antibacterial mother liquor, silk fibroin protein solution and iridoid compound solution are stirred, stirring frequency be 400 ~
800Hz, incorporation time are 1 ~ 2 h, and mixing temperature is 37 DEG C.
6. a kind of preparation method of coloured anti-bacterial Lyocell fiber according to claim 5, it is characterised in that: described to stir
While mixing mixing, pH to 7.5 is adjusted using PBS solution.
7. a kind of preparation method of coloured anti-bacterial Lyocell fiber according to claim 5, it is characterised in that:
The mass concentration of the silk fibroin protein solution is 1 ~ 4 %, and the concentration of the iridoid compound solution is 1 ~ 4%.
8. a kind of preparation method of coloured anti-bacterial Lyocell fiber according to claim 5, it is characterised in that:
The iridoid compound is one kind of geniposide, loganin, Paederia scandens acid, Scandoside.
9. a kind of preparation method of coloured anti-bacterial Lyocell fiber according to claim 4, it is characterised in that: described to have
Color fibre element spinning solution, the mass fraction of cellulose is 4 ~ 10%, containing water quality less than 14%；
The total mass ratio that the fibroin albumen/iridoid compound accounts for cellulose is 0.5 ~ 1%.
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|---|---|---|---|
| CN201811637409.9A CN109629025B (en) | 2018-12-29 | 2018-12-29 | Colored antibacterial Lyocell fiber and preparation method thereof |
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| CN201811637409.9A CN109629025B (en) | 2018-12-29 | 2018-12-29 | Colored antibacterial Lyocell fiber and preparation method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5795522A (en) * | 1995-08-11 | 1998-08-18 | Lenzing Atkiengesellschaft | Cellulose fibre |
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