CN108360257A - A kind of preparation method of cation-modified viscose rayon - Google Patents
A kind of preparation method of cation-modified viscose rayon Download PDFInfo
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- CN108360257A CN108360257A CN201810118204.3A CN201810118204A CN108360257A CN 108360257 A CN108360257 A CN 108360257A CN 201810118204 A CN201810118204 A CN 201810118204A CN 108360257 A CN108360257 A CN 108360257A
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- viscose rayon
- modified viscose
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- 229920000297 Rayon Polymers 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title claims abstract description 37
- 150000001768 cations Chemical class 0.000 claims abstract description 14
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 14
- 230000023556 desulfurization Effects 0.000 claims abstract description 14
- 239000003607 modifier Substances 0.000 claims abstract description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 65
- 239000003921 oil Substances 0.000 claims description 9
- 238000004061 bleaching Methods 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 8
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- CSPHGSFZFWKVDL-UHFFFAOYSA-M (3-chloro-2-hydroxypropyl)-trimethylazanium;chloride Chemical class [Cl-].C[N+](C)(C)CC(O)CCl CSPHGSFZFWKVDL-UHFFFAOYSA-M 0.000 claims description 4
- JKNCOURZONDCGV-UHFFFAOYSA-N 2-(dimethylamino)ethyl 2-methylprop-2-enoate Chemical class CN(C)CCOC(=O)C(C)=C JKNCOURZONDCGV-UHFFFAOYSA-N 0.000 claims description 3
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims 1
- 150000001408 amides Chemical class 0.000 claims 1
- -1 polypropylene Polymers 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 34
- 239000000835 fiber Substances 0.000 abstract description 32
- 238000004043 dyeing Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 9
- 239000003795 chemical substances by application Substances 0.000 abstract description 8
- 230000004048 modification Effects 0.000 abstract description 8
- 238000012986 modification Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 150000003839 salts Chemical class 0.000 abstract description 4
- 238000010924 continuous production Methods 0.000 abstract description 3
- 239000000982 direct dye Substances 0.000 abstract description 2
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 239000000985 reactive dye Substances 0.000 abstract description 2
- 239000000975 dye Substances 0.000 description 16
- 229920002678 cellulose Polymers 0.000 description 9
- 239000001913 cellulose Substances 0.000 description 9
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 229920003043 Cellulose fiber Polymers 0.000 description 6
- 239000003292 glue Substances 0.000 description 6
- 230000007935 neutral effect Effects 0.000 description 6
- 238000012805 post-processing Methods 0.000 description 6
- 239000002994 raw material Substances 0.000 description 5
- 238000002166 wet spinning Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 150000003384 small molecules Chemical class 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 125000002091 cationic group Chemical group 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
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- 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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/46—Compounds containing quaternary nitrogen atoms
- D06M13/463—Compounds containing quaternary nitrogen atoms derived from monoamines
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/13—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen using inorganic agents
-
- 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
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
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- 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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/325—Amines
- D06M13/328—Amines the amino group being bound to an acyclic or cycloaliphatic carbon atom
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- 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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/285—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acid amides or imides
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- 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
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/53—Polyethers
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- 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
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
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- General Chemical & Material Sciences (AREA)
- Artificial Filaments (AREA)
- Coloring (AREA)
Abstract
The present invention provides the preparation, cation-modified of a kind of preparation method of cation-modified viscose rayon, the preparation method, including cation-modified solution.The preparation method of the cation-modified viscose rayon of the present invention is simple, carries out during conventional viscose rayon continuous production, without increasing equipment investment, can be realized on existing production line, is suitable for large-scale production.The cation-modified viscose rayon of the present invention, carries out after desulfurization process, and fiber is easy and the combination of covalent bond occurs for cation modifier, and modifying agent is lost in less, and fibre modification effect is preferable.The cation-modified viscose rayon of the present invention, can be dyed with direct dyes or reactive dye, without adding inorganic salts that can achieve the effect that even dyeing, dye-uptake are high.The cation-modified viscose rayon of the present invention, the suction color time is short under normal temperature condition, and in the case of identical dye-uptake, has and increases deep effect.
Description
Technical field
The present invention relates to a kind of processes of modification regeneration cellulose fibre, change specifically, being related to a kind of cation
The preparation method of property viscose rayon, belongs to fibre technology field.
Background technology
For cellulose fibre when being contacted with dye liquor, fiber surface is usually with a certain amount of charge.In neutral or alkalinity
Under the conditions of, due to electronegative particle etc. is adsorbed in the generations such as carboxyl, sulfonic group ionization in fiber and fiber in dye liquor, make
Fiber surface is negatively charged, and most of dyestuffs for contaminating cellulose fibre are also negatively charged in dye bath.In dyeing, by
The upper dye of electrostatic repulsion between dyestuff and fiber, dyestuff is hindered so that dye-uptake reduces.Tradition solves the problems, such as this
Method be that a large amount of inorganic salts are added in dye bath, to improve dye-uptake；To reach fixation purpose, the hydroxyl on cellulose needs
It ionizes under strongly alkaline conditions, after dyeing the phase, a large amount of soda ash is added again in dye liquor, in dyeing liquor finally discharged in this way
A large amount of dyestuff, inorganic salts, alkali are remained, intractability is big, and serious pollution is caused to environment.
Currently, common method be to cellulose fibre carry out it is cation-modified, i.e., by with the hydroxyl on fiber
Learning reaction and forming covalent bond makes fiber become positively charged lotus, or makes fiber be in electropositive by way of physical absorption, to
Promote on negatively charged dye molecule in dye to fiber.Cation modifier can be divided into small molecule class and height according to molecular size
Molecule class.Small molecule cationoid modifying agent easily enters fibrous inside very much since molecular weight is small, can be to fiber surface and inside
It is uniformly modified, preferable through its modified fiber level-dyeing property and through-dyeing, because its cost is relatively low, application is wide.It is high
Molecule cationoid modifying agent is compared with small molecule cationoid modifying agent, and direct more preferable, dosage is few, and thermal stability is good,
The advantages that not facile hydrolysis, utilization ratio is high, receives people and more and more pays close attention to, and is gradually applied to fibre modification aspect,
Effect is preferable.
In recent years, gradually increase about the research of cation modifying fiber, such as Chinese invention CN201410689164.X
Modification is cellulose fibre to be put into container, then add water into container, and cation modifier is added, adds after a period of time
Enter sodium hydroxide, then carry out temperature reaction and cooling, the modification time is longer and technique is cumbersome.CN201610238448.6
Processing is modified to cellulose base fiber fabric using the method for two kinds of cation modifiers and addition dyeing assistant, is modified
Cellulose fibre fabric.The method is handled fabric, has limitation, and the dyeing assistant added is to environment
Cause new pollution.CN201410492816.0 adds cellulose cation modifier in dissolution process or spinning process, is
Single addition manner, because the additive amount of modifying agent is less, and the technological process of production is longer, in follow-up spinning process and refining
The loss that modifying agent can be caused in processing procedure, causes the modified effect of fiber undesirable.
Invention content
The present invention is directed to the deficiencies in the prior art, provides a kind of preparation side of cation-modified viscose rayon
Method, the cation-modified viscose rayon prepared using this method are carried out during existing cellulose viscose manufacturing technique, are led to
Adjustment refining station bit distribution is crossed, increases cation-modified process after desulfurization process, it is easy to accomplish industrialization production.The present invention's
Goal of the invention is：
1, cation-modified viscose rayon prepared by the present invention, carries out during conventional viscose rayon continuous production, is not necessarily to
It is additionally heated up or is cooled down, modified technique is simple, easy to operation.
2, cation-modified viscose rayon prepared by the present invention, carries out in postprocessing working procedures, will not cause modifying agent
It is largely lost, fibre modification effect is preferable.
3, cation-modified viscose rayon prepared by the present invention, under the conditions of salt-free low alkali, even dyeing, dye-uptake are high.
4, it is short to inhale the color time under normal temperature condition for cation-modified viscose rayon prepared by the present invention.
To reach above-mentioned technical purpose, technical scheme is as follows：
A kind of preparation method of cation-modified viscose rayon, includes the following steps：
（1）The preparation of cation-modified solution：Cation modifier is added in certain density lye, 10-100g/ is made into
The cation-modified solution of l, preferably 30-60g/l, homogenizer mixing.
（2）Modified technique process：Using cellulose pulp as raw material, it is laggard that viscose glue stoste is made with conventional viscose preparation technology
Row wet spinning, fiber obtain cation-modified viscous through desulfurization, the cation-modified, post-processing step washing, bleach, oil
Glue fiber.
It is described（1）Middle cation modifier is N dimethylaminoethyl methacrylates, poly-epoxychloropropane dimethylamine, sun
In cationic polyacrylamide, 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides, 3- acrylamide -2- hydroxypropyl-trimethyl ammonium chlorides
It is one or more of；
It is described（1）In lye be sodium hydroxide solution, a concentration of 2-8g/l of the sodium hydroxide solution.
It is described（1）Middle homogenizer time 10-30min, speed 2000-3000rpm.
It is described（2）Middle post-processing step, cation-modified process：50-80 DEG C of temperature, time 3-15min, bath raio 10:1-
60:1；
It is described（2）Middle post-processing step desulfurization washing, is bleached, is oiled, i.e. desulfurization temperature：70-80 DEG C, concentration：2-6g/l, water
Wash temperature：60-70 DEG C, bleaching levels：0.15-0.5g/l, upper oil temperature：50-60 DEG C, concentration：3-6g/l；The desulfurization uses
Sodium hydroxide desulfurization, the bleaching use hydrogen peroxide bleaching.
By adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1, the preparation method of cation-modified viscose rayon of the invention is simple, is in conventional viscose rayon continuous production process
Middle progress, it without increasing equipment investment, can be realized on existing production line, be suitable for large-scale production.
2, cation-modified viscose rayon of the invention, carries out after desulfurization process, and fiber is easy and cation modifier
The combination of covalent bond occurs, modifying agent is lost in less, and fibre modification effect is preferable.
3, cation-modified viscose rayon of the invention, can be dyed with direct dyes or reactive dye, without adding nothing
Machine salt can achieve the effect that even dyeing, dye-uptake are high.
Cation-modified viscose rayon prepared by the present invention, under alkaline condition（Sodium hydroxide 2g/l, bath raio 50:1）With 1%
Dye strength（Compared to fiber）Chrysophene G is neutral, salt-free dyeing, measurements K/S values are 23.02-25.58, and dye-uptake is
93.64-96.36%。
4, cation-modified viscose rayon of the invention, the suction color time is short under normal temperature condition, and in identical dye-uptake
In the case of, have and increases deep effect.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described, it should be understood that preferred embodiment described herein is only used
In the description and interpretation present invention, it is not intended to limit the present invention.
Embodiment 1：A kind of preparation method of cation-modified viscose rayon
Include the following steps：
1, the preparation of cation-modified solution：The sodium hydroxide that 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are added to 2g/l is molten
In liquid, with homogenizer 10min, speed 2000rpm, it is made into the cation-modified solution of 15g/l.
2, modified technique process：Using cellulose pulp as raw material, it is laggard that viscose glue stoste is made with conventional viscose preparation technology
Row wet spinning, fiber is through desulfurization（Sodium hydroxide）Temperature 70 C, concentration 2g/l, cation-modified temperature 50 C, time 3min,
Bath raio 20:1,60 DEG C of washing temperature, bleaching（Hydrogen peroxide）The post-processing step of concentration 0.15g/l, the temperature 50 C that oils, concentration 3g/l
Suddenly, cation-modified viscose rayon is obtained.
By the cation-modified viscose rayon of above method, under alkaline condition（Sodium hydroxide 2g/l, bath raio 50:1）
With 1% dye strength（Compared to fiber）Chrysophene G is neutral, salt-free dyeing, it is 23.02 to measure K/S values, and dye-uptake is
93.64%。
Embodiment 2：A kind of preparation method of cation-modified viscose rayon
Include the following steps：
1, the preparation of cation-modified solution：N dimethylaminoethyl methacrylates are added to the sodium hydroxide solution of 4g/l
In, with homogenizer 15min, speed 2400rpm, it is made into the cation-modified solution of 30g/l.
2, modified technique process：Using cellulose pulp as raw material, it is laggard that viscose glue stoste is made with conventional viscose preparation technology
Row wet spinning, fiber is through desulfurization（Sodium hydroxide）75 DEG C of temperature, concentration 3g/l, cation-modified temperature 60 C, time
10min, bath raio 30:1,62 DEG C of washing temperature, bleaching（Hydrogen peroxide）After concentration 0.3g/l, 55 DEG C of upper oil temperature, concentration 4g/l
Processing step obtains cation-modified viscose rayon.
By the cation-modified viscose rayon of above method, under alkaline condition（Sodium hydroxide 2g/l, bath raio 50:1）
With 1% dye strength（Compared to fiber）Chrysophene G is neutral, salt-free dyeing, it is 24.56 to measure K/S values, and dye-uptake is
94.82%。
Embodiment 3：A kind of preparation method of cation-modified viscose rayon
Include the following steps：
1, the preparation of cation-modified solution：Cationic polyacrylamide, 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides are added respectively
Enter into the sodium hydroxide solution of 6g/l, be made into the cation-modified solution that concentration is respectively 30g/l, 20g/l, by two kinds of solution
In mass ratio 1:After 1 mixing, homogenizer 20min, speed 2600rpm.
2, modified technique process：Using cellulose pulp as raw material, it is laggard that viscose glue stoste is made with conventional viscose preparation technology
Row wet spinning, fiber is through desulfurization（Sodium hydroxide）72 DEG C of temperature, concentration 4g/l, cation-modified temperature 70 C, time 5min,
Bath raio 40:1,65 DEG C of washing temperature, bleaching（Hydrogen peroxide）Concentration 0.4g/l, 52 DEG C of upper oil temperature, the post-processing step of concentration 5g/l
Suddenly, cation-modified viscose rayon is obtained.
By the cation-modified viscose rayon of above method, under alkaline condition（Sodium hydroxide 2g/l, bath raio 50:1）
With 1% dye strength（Compared to fiber）Chrysophene G is neutral, salt-free dyeing, it is 25.58 to measure K/S values, and dye-uptake is
96.36%。
Embodiment 4：A kind of preparation method of cation-modified viscose rayon
Include the following steps：
1, the preparation of cation-modified solution：By poly-epoxychloropropane dimethylamine, 3- acrylamide -2- Hydroxyproyl Trimethyl chlorinations
Ammonium is added separately in the sodium hydroxide solution of 8g/l, is made into the cation-modified solution of a concentration of 45g/l, 40g/l, by two kinds
Solution in mass ratio 1:After 1 mixing, homogenizer 30min, speed 3000rpm.
2, modified technique process：Using cellulose pulp as raw material, it is laggard that viscose glue stoste is made with conventional viscose preparation technology
Row wet spinning, fiber is through desulfurization（Sodium hydroxide）80 DEG C of temperature, concentration 6g/l, 80 DEG C of cation-modified temperature, time
15min, bath raio 60:1,70 DEG C of washing temperature, bleaching（Hydrogen peroxide）After concentration 0.45g/l, 58 DEG C of upper oil temperature, concentration 6g/l
Processing step obtains cation-modified viscose rayon.
By the cation-modified viscose rayon of above method, under alkaline condition（Sodium hydroxide 2g/l, bath raio 50:1）
With 1% dye strength（Compared to fiber）Chrysophene G is neutral, salt-free dyeing, it is 25.46 to measure K/S values, and dye-uptake is
96.28%。
Unless specifically indicated, the ratio that the present invention uses, is mass ratio, and the percentage of use is mass percent.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified, all within the spirits and principles of the present invention, made by appoint
What modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of preparation method of cation-modified viscose rayon, it is characterised in that：The preparation method, including it is cation-modified
It is the preparation of solution, cation-modified.
2. a kind of preparation method of cation-modified viscose rayon according to claim 1, it is characterised in that：It is described sun from
Cation modifier is added in certain density lye by the preparation of sub- modified solution, and the cation for being made into 10-100g/l changes
Property solution, homogenizer mixing.
3. a kind of preparation method of cation-modified viscose rayon according to claim 2, it is characterised in that：
The cation modifier is N dimethylaminoethyl methacrylates, poly-epoxychloropropane dimethylamine, cation polypropylene
One or more of amide, 3- chloro-2-hydroxypropyl-trimethyl ammonium chlorides, 3- acrylamide -2- hydroxypropyl-trimethyl ammonium chlorides.
4. a kind of preparation method of cation-modified viscose rayon according to claim 1, it is characterised in that：
It is described cation-modified, 50-80 DEG C of temperature.
5. a kind of preparation method of cation-modified viscose rayon according to claim 1, it is characterised in that：It is described sun from
Son is modified, time 3-15min.
6. a kind of preparation method of cation-modified viscose rayon according to claim 1, it is characterised in that：It is described sun from
Son is modified, bath raio 10:1-60:1.
7. a kind of preparation method of cation-modified viscose rayon according to claim 2, it is characterised in that：
The lye is sodium hydroxide solution, a concentration of 2-8g/l of the sodium hydroxide solution.
8. a kind of preparation method of cation-modified viscose rayon according to claim 2, it is characterised in that：
The homogenizer, mixing time 10-30min, speed 2000-3000rpm.
9. a kind of preparation method of cation-modified viscose rayon according to claim 1, it is characterised in that：The preparation
Method further includes desulfurization, washing, bleaches, oils；The desulfurization, temperature are 70-80 DEG C, a concentration of 2-6g/l；The washing,
Temperature is 60-70 DEG C；The bleaching, bleaching levels 0.15-0.5g/l；Described to oil, upper oil temperature is 50-60 DEG C, concentration
For 3-6g/l.
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Application publication date: 20180803 |