CN106368004A - Cold pad batch processing method of cotton fibers through pre-treatment dyeing one-bath method - Google Patents
Cold pad batch processing method of cotton fibers through pre-treatment dyeing one-bath method Download PDFInfo
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- CN106368004A CN106368004A CN201610735963.5A CN201610735963A CN106368004A CN 106368004 A CN106368004 A CN 106368004A CN 201610735963 A CN201610735963 A CN 201610735963A CN 106368004 A CN106368004 A CN 106368004A
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 37
- 238000002203 pretreatment Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004043 dyeing Methods 0.000 title claims abstract description 27
- 238000003672 processing method Methods 0.000 title claims abstract description 16
- 239000000835 fiber Substances 0.000 claims abstract description 40
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 23
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 16
- 238000005470 impregnation Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 14
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 11
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 10
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 10
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 9
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 9
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 9
- 239000006184 cosolvent Substances 0.000 claims abstract description 7
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 5
- 239000001488 sodium phosphate Substances 0.000 claims abstract description 3
- 229910000162 sodium phosphate Inorganic materials 0.000 claims abstract description 3
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims abstract description 3
- 150000001875 compounds Chemical class 0.000 claims abstract 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 16
- 239000004202 carbamide Substances 0.000 claims description 8
- 235000013877 carbamide Nutrition 0.000 claims description 8
- 238000002386 leaching Methods 0.000 claims description 6
- 239000000344 soap Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 239000000985 reactive dye Substances 0.000 claims description 4
- 238000009991 scouring Methods 0.000 claims description 4
- -1 bath raio 1: 20 Substances 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 3
- 239000000975 dye Substances 0.000 abstract description 38
- 238000005406 washing Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 7
- 238000001035 drying Methods 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 abstract description 3
- 239000003513 alkali Substances 0.000 abstract 2
- 238000012360 testing method Methods 0.000 description 8
- 239000000523 sample Substances 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 6
- 238000010923 batch production Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005097 cold rolling Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 239000001814 pectin Substances 0.000 description 4
- 235000010987 pectin Nutrition 0.000 description 4
- 229920001277 pectin Polymers 0.000 description 4
- 238000010186 staining Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000008595 infiltration Effects 0.000 description 3
- 238000001764 infiltration Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000009968 stock dyeing Methods 0.000 description 3
- 239000004753 textile Substances 0.000 description 3
- 102000004190 Enzymes Human genes 0.000 description 2
- 108090000790 Enzymes Proteins 0.000 description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000002835 absorbance Methods 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229940126678 chinese medicines Drugs 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000003230 hygroscopic agent Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000013112 stability test Methods 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000003911 water pollution 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
- D06P1/38—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 reactive dyes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/02—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fibres, slivers or rovings
-
- 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
- D06M16/003—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic with enzymes or microorganisms
-
- 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
- D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
-
- 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
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
-
- 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
- D06P1/67383—Inorganic compounds containing silicon
-
- 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
- D06P3/58—Material containing hydroxyl groups
- D06P3/60—Natural or regenerated cellulose
- D06P3/66—Natural or regenerated cellulose using reactive 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
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Coloring (AREA)
Abstract
The invention provides a cold pad batch processing method of cotton fibers through a pre-treatment dyeing one-bath method. The cold pad batch processing method is characterized by comprising: padding raw cotton loose fibers into impregnation liquid; after padding, stacking at a room temperature for 8h to 20h; washing with hot water at 70 DEG C to 80 DEG C and soaping; washing with cold water and drying, wherein the impregnation liquid contains 10g/L to 80g/L of an active dyestuff, 3g/L to 5g/L of a pre-treatment auxiliary agent, 30g/L to 100g/L of a co-solvent, 5g/L to 18g/L of an alkali agent and 20g/L to 50g/ of sodium sulfate, and the alkali agent is one or a compound of more of sodium silicate, sodium carbonate, sodium phosphate and sodium hydroxide. A cold pad batch treatment process provided by the invention is carried out at a room temperature, a formula is simple and the operation is convenient; raw cotton does not need to be independently pre-treated; the auxiliary agent is added and pre-treatment and dyeing can be carried out in one bath, so that the cost is reduced; damage to the fibers is small and the hand feeling is good; the utilization rate of the dyestuff is high, less sewage is discharged, and energy saving and emission reduction are realized.
Description
Technical field
The invention belongs to cotton loose stock dyeing field, process the work of cotton staple in bulk with bath particularly to a kind of pre-treatment dyeing
Skill.
Background technology
Pure colored cotton roving is adequately mixed by two or more dyeing processes, drawing-off, twisting form, and it is with " first
The processing method of loose stock dyeing, rear blended colour yarn ", breaches the defect of conventional yarn single color, innovatively develops
The single thread style of unique color blending effect, technology content is higher.However, to raw cotton staple in bulk direct staining, due to raw cotton originally
Body contains fiber accompaniment, and wettability is poor, and during dyeing, the permeability of dyestuff is bad, thus affecting the upper dye of dyestuff, obtains color not
Depth and degree of fixation is not high.If first conventional pre-treatment is carried out to raw cotton staple in bulk, then carry out conventional impregnation method dyeing, loose wool fiber
At high temperature, strongly impaired, flexibility decrease, and feel is bad, the work such as follow-up spinning of impact, low production efficiency, simultaneously
Water consumption power consumption is more, does not meet the direction of energy-saving and emission-reduction development.Pre-treatment auxiliary agent includes some high-efficiency refining agents, enzyme agent
Deng can help remove the impurity such as pectin contained by fiber, improve the wettability of fiber.Cold rolling batch-dying process includes the suction of dyestuff
Attached, diffusion and set, fabric is impregnated after the of short duration time in dye liquor, through roll roll compacting, dye liquor is clamp-oned the space of textile
In, bank up a very long time at room temperature by clot for the fabric after padding, and enables dyestuff fully from fiber surface absorption, diffusion
To fibrous inside, and there is fixation reaction with fiber in the presence of alkaline agent.Because color fixing temperature is low, be conducive to improving fixation effect
Rate.In order to ensure abundant infiltration during textile pad dye liquor, help fiber swelling, suitable adjuvants in dye liquor, should be added.
Content of the invention
The technical problem to be solved is to provide the side that a kind of raw cotton staple in bulk pre-treatment and dyeing are processed with bath
Method.The method is carried out at normal temperatures, and formula is simple, easy to operate, need not individually carry out pre-treatment to raw cotton, adding by auxiliary agent
Enter to realize pre-treatment and dyeing is carried out simultaneously, cost-effective, little to fibre damage, preferably, dye utilization rate is high for feel, and sewage is arranged
Put few, energy-saving and emission-reduction.
In order to solve above-mentioned technical problem, the invention provides a kind of cold pad--batch to cotton fiber for pre-treatment one-bath dyeing method
Processing method is it is characterised in that include: raw cotton staple in bulk padded in impregnation liquid, pads rear stacking at room temperature 8～20h, 70～
80 DEG C of hot water wash, soap, cold water is washed, and dry；Wherein, described impregnation liquid contains reactive dye 10～80g/l, pre-treatment auxiliary agent
3～5g/l, cosolvent 30～100g/l, alkaline agent 5～18g/l and sodium sulfate 20～50g/l；Described alkaline agent be sodium silicate,
One or more of sodium carbonate, sodium phosphate and sodium hydroxide compound.
Preferably, described pre-treatment auxiliary agent is at least one in scouring penetrant jfc and alkaline pectase.
Preferably, described cosolvent is carbamide.
Preferably, described raw cotton staple in bulk is the loose wool fiber through combing.
Preferably, the described dip time 5～15min padding, pick-up rate 80～120%, two leachings two are rolled.
Preferably, described stacking at room temperature is to bank up in the case of sealing.
Preferably, the described temperature soaped is less than 95 DEG C, and using 2g/l soaping agent, bath raio 1: 20, soap 10min.
Preferably, when preparing described impregnation liquid, alkaline agent is eventually adding.
The present invention relates to a kind of pre-treatment dyeing processes the technique of cotton staple in bulk with bath, that is, press above-mentioned composition at room temperature
Prepare padding liquid, uniformly pad rear stacking at room temperature, washing, dry.
During cold-pad-batch process is processed, the dye liquor of preparation not only includes dyestuff and fixation alkaline agent, also has some auxiliary agents, cosolvent
Deng.After fiber impregnates the of short duration time in dye liquor, through roll roll compacting, dye liquor is clamp-oned so that dyestuff and auxiliary agent adsorb in fiber
Surface；Fiber after padding is banked up a very long time at room temperature, and auxiliary agent can help pectin of removal fiber surface etc. miscellaneous
Matter, dyestuff fully can adsorb, be diffused into fibrous inside from fiber surface, and occurs set anti-with fiber in the presence of alkaline agent
Should, finally washed again, removed surface loose colour and other auxiliary agents, alkaline agent, improved washing fastness.
Auxiliary agent be scouring penetrant jfc and alkaline pectase, because cotton fiber is without pre-treatment, surface exist pectin and
The impurity such as some waxinesss, add auxiliary agent can make the rapid moistening of raw cotton fiber, have certain dividing in the presence of alkaline agent to impurity
Solution acts on, and is conducive to infiltration, the absorption of dyestuff；Alkaline pectase has certain decomposition to the pectin of fiber surface, accelerates
The moistening of fiber.
Cosolvent is carbamide, and because cold-rolling heap staining dye strength is higher, carbamide has depolymerisation to anionic dye, makes
Colorant dissolubility improves.Again good hygroscopic agent simultaneously, by increasing capacitance it is possible to increase fiber swelling.
Fixation alkaline agent is generally the mixture of Caustic soda and sodium silicate, because cold-pad-batch process is to carry out under cryogenic
, need stronger fixation alkaline agent, therefore need the highly basic adding Caustic soda to be similar to；Sodium silicate plays Stabilization, fixation when just starting
Speed is fast, and permeability and uniformity can decline, and sodium silicate plays the effect of a buffering wherein so that initial colour fixation rete
Slow down, dyeability increases.
Pad the infiltration being to accelerate dye liquor and auxiliary agent by applying pressure, fiber liquid carrying rate is 100～150%, uniformly
The level-dyeing property padding for fiber is critically important.If dye liquor is inadequate to fiber pervasion, should not continue intensified pressure, and pass through two leachings two
The mode rolled helps fiber uniformly penetrating.It should with plastic sheeting burden, sealing during stacking at room temperature, it is to avoid with air contact, prevent
Only under alkalescence condition, the oxygen of in the air and fiber-reactive, damage fiber.
Time of banking up is larger on the upper dye impact of dyestuff, and the time is unsuitable too short, and otherwise dyestuff is insufficient to the upper dye of fiber,
Dye utilization rate is low, prolongation over time, and dye-uptake increases, but overlong time of banking up, the dyestuff generation being combined with cotton fiber
The meeting of hydrolysis gets more and more, and causes degree of fixation to reduce, loose colour increases, washing fastness is deteriorated.Therefore the time of banking up should be according to dye
The reactivity of material and fixation alkaline agent are determining.
Compared with prior art, the invention has the beneficial effects as follows:
(1) present invention adopts pre-treatment and dyeing to achieve pre-treatment with bathing cold-pad-batch process, the addition of auxiliary agent and dyestuff
Carry out with bath with dyeing, it is not necessary to individually carry out a series of pre-treatment work such as the refine of routine, bleaching, cotton staple in bulk being damaged
Little；Production efficiency improves simultaneously, cost-effective.
(2) cold-pad-batch process is carried out at room temperature, and unlike conventional impregnation method dyeing needs to heat, and bath raio is little, power consumption
Water consumption is few, economizes on resources, ecological, environmental protective.
(3) during cold-rolling heap staining, reactive dye utilization rate is high, obtains color depth, and degree of fixation is high, and suitable dyes are wide in variety,.Washing
In the sewage discharging afterwards, dye content is few, decreases water pollution, is conducive to ecological, environmental protective.
(4) whole processing technology process is convenient, simple to operate, directly to loose stock dyeing, is capable of colour-spun yarns, breaks through
The single color of conventional yarn, has certain economic benefit.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than restriction the scope of the present invention.In addition, it is to be understood that after having read the content of present invention instruction, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Cold water of the present invention is the water of room temperature.Penetrating agent jfc in following examples is purchased from Chinese medicines group chemistry examination
Agent company limited.Alkaline pectase is bioprep3000l alkaline pectase (Novozymes Company, enzyme activity 3000u/ml)
Embodiment 1
A kind of cold pad--batch processing method to cotton fiber for pre-treatment one-bath dyeing method, concretely comprises the following steps:
Weigh the raw cotton staple in bulk 2g after combing, pad in impregnation liquid, twice co-impregnation ten minutes, pick-up rate 120%,
Two leachings two are rolled, and are coated with plastic sheeting, stacking at room temperature 12h in the case of sealing, first 70～80 DEG C of hot water wash, soap after padding
(commerical grade soaping agent 2g/l, bath raio 1: 20,95 DEG C of temperature, time 10min), then cold water washes, 80-95 DEG C of drying, is dyeed
Cotton fiber.
The formula of described impregnation liquid is: reactive black kn-b (two active groups) 40g/l, carbamide 50g/l, sodium sulfate 30g/
L, scouring penetrant jfc 4g/l, alkaline pectase 2g/l, Caustic soda 3g/l, sodium silicate 15g/l.During preparation, at room temperature successively
It is added to the water mixing, stir.
Embodiment 2
A kind of cold pad--batch processing method to cotton fiber for pre-treatment one-bath dyeing method, concretely comprises the following steps:
Weigh the raw cotton staple in bulk 2g after combing, pad in impregnation liquid, twice co-impregnation ten minutes, pick-up rate 120%,
Two leachings two are rolled, and are coated with plastic sheeting, stacking at room temperature 12h in the case of sealing, first 70～80 DEG C of hot water wash, soap after padding
(commerical grade soaping agent 2g/l, bath raio 1: 20,95 DEG C of temperature, time 10min), then cold water washes, 80-95 DEG C of drying, is dyeed
Cotton fiber.
The formula of described impregnation liquid is: reactive brilliant bule kn-r20g/l, carbamide 50g/l, sodium sulfate 30g/l, and refine is permeated
Agent jfc4g/l, alkaline pectase 2g/l, soda 2g/l, sodium silicate 10g/l.During preparation, sequentially add mixed in water at room temperature
Close, stir.
Sample in embodiment is carried out with test characterize, test event, method of testing and test result are as follows:
Test event and method of testing:
(1) fiber surface tinctorial yield: this experiment adopts datacolor650 color measurement and color match instrument to measure the apparent of coloured fibre
Tinctorial yield, makees index with k/s value.
(2) degree of fixation: this experiment is stripped to the sample before and after fixation respectively using carbamide method of stripping, after measurement is stripped
Obtain the absorbance of solution and the quality of sample of stripping, degree of fixation f% is calculated according to formula.
(3) dye the washing fastness of sample: " textile color stability tests resistance to color of soaping according to gb/t 3921-2008 for this experiment
Fastness " in staple in bulk standard test, with datacolour650 color measurement and color match instrument grading.
(4) fiber strength: this experiment uses xq-2 type fiber strength instrument to measure, and is represented with relative strength.
Test result is as follows:
Sample in embodiment 1 and 2 is carried out every test, and enters with first passing through the fiber sample that pre-treatment dyeed again
Row comparative analysiss, result is listed in table 1.
Fiber pre-treating technology: Caustic soda 1.5g/l, sodium silicate 2g/l, hydrogen peroxide 2g/l, sodium sulfite 1g/l, bath raio 1:
20,95 DEG C of temperature, time 60min.
Conventional exhaust process: prescription includes dyestuff 10% (o.w.f), sodium sulfate 50g/l, sodium carbonate 20g/l, bath raio 1:
50.Technique includes after fiber moistening extracts, treating that dye bath temperature rises to 40 DEG C, adding the sodium sulfate of dyestuff, fiber and half,
Add after 15min and contaminate in other half sodium sulfate continuation, after 30min, be warming up to 60 DEG C, add sodium carbonate, be incubated fixation
60min, is washed after dyeing, dries.
Conventional cold-pad-batch process (after fiber is pre-treatment): dye liquor includes reactive dye 10～80g/l, carbamide 50g/l,
Sodium sulfate 30g/l, Caustic soda 1-5g/l, sodium silicate 3-8g/l, two leaching two is rolled, and pick-up rate is 120%, is incubated the 12h that banks up, and washes,
Dry.
Table one is embodiment 1 and 2 and each test event of control sample contrast sign.
As can be seen from Table I, individually do not carry out the fiber of pre-treatment, tinctorial yield and degree of fixation can reach often
The effect being dyeed again after rule pre-treatment, and washing fastness is also fine, in addition passes through the fiber of conventional pre-treatment poststaining
Strength has certain damage, and the fiber strength damage directly carrying out cold-rolling heap staining is less.
Claims (8)
1. a kind of pre-treatment one-bath dyeing method to the cold pad--batch processing method of cotton fiber it is characterised in that including: raw cotton is dissipated fibre
Dimension is padded in impregnation liquid, pads rear stacking at room temperature 8～20h, 70～80 DEG C of hot water wash, soaps, cold water is washed, and dries；Wherein, institute
The impregnation liquid stated contains reactive dye 10～80g/l, pre-treatment auxiliary agent 3～5g/l, cosolvent 30～100g/l, and alkaline agent 5～
18g/l and sodium sulfate 20～50g/l；Described alkaline agent is one of sodium silicate, sodium carbonate, sodium phosphate and sodium hydroxide
Or several compound.
2. pre-treatment one-bath dyeing method as claimed in claim 1 to the cold pad--batch processing method of cotton fiber it is characterised in that institute
The pre-treatment auxiliary agent stated is at least one in scouring penetrant and alkaline pectase.
3. pre-treatment one-bath dyeing method as claimed in claim 1 to the cold pad--batch processing method of cotton fiber it is characterised in that institute
The cosolvent stated is carbamide.
4. pre-treatment one-bath dyeing method as claimed in claim 1 to the cold pad--batch processing method of cotton fiber it is characterised in that institute
The raw cotton staple in bulk stated is the loose wool fiber through combing.
5. pre-treatment one-bath dyeing method as claimed in claim 1 to the cold pad--batch processing method of cotton fiber it is characterised in that institute
Dip time 5～the 15min padding stating, pick-up rate 80～120%, two leachings two are rolled.
6. pre-treatment one-bath dyeing method as claimed in claim 1 to the cold pad--batch processing method of cotton fiber it is characterised in that institute
The stacking at room temperature stated is to bank up in the case of sealing.
7. pre-treatment one-bath dyeing method as claimed in claim 1 to the cold pad--batch processing method of cotton fiber it is characterised in that institute
The temperature soaped stated is less than 95 DEG C, and using 2g/l soaping agent, bath raio 1: 20, soap 10min.
8. pre-treatment one-bath dyeing method as claimed in claim 1 to the cold pad--batch processing method of cotton fiber it is characterised in that
When preparing described impregnation liquid, alkaline agent is eventually adding.
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Cited By (4)
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| CN107604711A (en) * | 2017-10-09 | 2018-01-19 | 山东黄河三角洲纺织科技研究院有限公司 | A kind of cotton fiber continuous dyeing method |
| CN109577035A (en) * | 2018-11-26 | 2019-04-05 | 绍兴国周针织科技有限公司 | A kind of stock-dye technique |
| CN109736034A (en) * | 2018-12-30 | 2019-05-10 | 山东黄河三角洲纺织科技研究院有限公司 | A kind of dyeing apparatus and its colouring method of cotton fiber |
| CN112144300A (en) * | 2020-10-15 | 2020-12-29 | 魏桥纺织股份有限公司 | Method for dyeing loose fibers by using vegetable dye |
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| CN107604711A (en) * | 2017-10-09 | 2018-01-19 | 山东黄河三角洲纺织科技研究院有限公司 | A kind of cotton fiber continuous dyeing method |
| CN109577035A (en) * | 2018-11-26 | 2019-04-05 | 绍兴国周针织科技有限公司 | A kind of stock-dye technique |
| CN109736034A (en) * | 2018-12-30 | 2019-05-10 | 山东黄河三角洲纺织科技研究院有限公司 | A kind of dyeing apparatus and its colouring method of cotton fiber |
| CN112144300A (en) * | 2020-10-15 | 2020-12-29 | 魏桥纺织股份有限公司 | Method for dyeing loose fibers by using vegetable dye |
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