CN104878618B - Method for dyeing superfine terylene fabric - Google Patents
Method for dyeing superfine terylene fabric Download PDFInfo
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- CN104878618B CN104878618B CN201510266835.6A CN201510266835A CN104878618B CN 104878618 B CN104878618 B CN 104878618B CN 201510266835 A CN201510266835 A CN 201510266835A CN 104878618 B CN104878618 B CN 104878618B
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Abstract
The invention discloses a method for dyeing a superfine terylene fabric. The method comprises the following dyeing steps: adding a softening agent, part of a leveling agent, and an expansive agent into the soppy superfine terylene fabric to prepare a working solution; adding a pH regulator to regulate the pH value of the working solution to 3.5-4.0; heating the working solution with the adjusted pH value to 43 DEG C, and adding disperse dye and the residual leveling agent to prepare a dye liquor; carrying out heating and dyeing. The method aims at dyeing of a brightly colored superfine terylene fabric, and has the advantages the softening agent, the leveling agent and the expansive agent are added simultaneously, and the pH value of the dye liquor is regulated to 3.5-4.0, so that poor leveling property, uneven dyeing and other quality problems existing in a low-bath-ratio dyeing process can be solved; moreover, the dye-uptake rate of the disperse dye can be improved, secondary aggregation of the disperse dye in a high-temperature descending process is prevented, all color fastness indices of the superfine terylene fabric exceed 4-level, the dyeing property is improved, and the dyeing effect is ideal; the method further has the advantages of being environment-friendly and low in energy consumption.
Description
Technical field
The invention belongs to technical field of textile printing, and in particular to a kind of colouring method of Polyester Fabric of Ultra-fine Fibre under Alkali Condition.
Background technology
Ultra-fine polyester fiber has the excellent properties such as good soft, slim and graceful drapability, ventilative moisture absorption, comfortable and easy to wear.Mesh
Before, Polyester Fabric of Ultra-fine Fibre under Alkali Condition dyeing mainly has high-temperature and high pressure dyeing process, thermosol dyeing method and carrier dyeing process, wherein High Temperature High Pressure dye
Color method is the most commonly used.During super fine polyester high-temperature pressure dyeing, numerator value should be selected minimum as far as possible, the good low form dye of dispersive property
Material.
In recent years, some bright-coloured, beautiful colors such as color blue, gorgeous blue become main flow, and dyeing is color blue using disperse dyes
SWF molecular mass super larges, intermolecular force are strong.Face that level-dyeing property is poor, dyeing defect in terms of dyeing and finishing process technology, particularly low
Bath raio air-flow cylinder dyeing be easier the quality problems such as dyeing defect, color dot, Duan Hua occur, face and be difficult repair color.
Chinese patent CN102628211B discloses Polyester Fabric of Ultra-fine Fibre under Alkali Condition dyeing and finishing processing method, including following procedure of processing：
(1) pre-treatment：Terylene grey fabric is carried out including cold dome, hot alkali treatment and the efficiently cold-pad-batch process processing of washing three phases；
(2) pre-setting：Forming machine high temperature tentering pre-setting is used to the fabric openpore after pre-treatment；(3) dye：It is even using superfine fibre
Stain is dyeed to the fabric openpore after pre-setting；(4) clean：Cleaning post processing is carried out to fabric after dyeing, removes fiber
The disperse dyes of non-set after dyeing.The novel dyeing and finishing processing technique of the invention is using environmental protection, the cold-pad-batch preparation of low energy consumption
Technology carries out pre-treatment to Polyester Fabric of Ultra-fine Fibre under Alkali Condition, and one side desizing effect is good, provides good dyeing and finishing processing conditionss for dyeing, separately
On the one hand, fabric wrinkle print can effectively be reduced.But it is fresh that the Polyester Fabric of Ultra-fine Fibre under Alkali Condition dyeing and finishing processing method of the invention is not suitable for color
, there is the quality problems such as the poor, dyeing defect of level-dyeing property in terms of dyeing and finishing process technology, especially in the dyeing of gorgeous, beautiful Polyester Fabric of Ultra-fine Fibre under Alkali Condition
Which is in the case of low bath raio, it is easier to the quality problems such as dyeing defect, color dot, Duan Hua occur, and is difficult to repair color.
The content of the invention
It is an object of the invention to provide a kind of colouring method of Polyester Fabric of Ultra-fine Fibre under Alkali Condition, to solve brightly painted ultra-fine wash
The quality problems such as the poor, dyeing defect of level-dyeing property that synthetic fibre fabric is present in terms of low bath raio dyeing and finishing process technology.
It is that, up to this purpose, the present invention is employed the following technical solutions：
A kind of colouring method of Polyester Fabric of Ultra-fine Fibre under Alkali Condition, including staining procedure：Add toward the Polyester Fabric of Ultra-fine Fibre under Alkali Condition for soaking and add
Enter softening agent, part levelling agent and extender and be made into working solution, and add pH adjusting agent adjustment work liquid pH to 3.5～4.0, rise
To adding disperse dyes and remaining levelling agent to be made into dye liquor when 43 DEG C, then heat up temperature dyeing.For the dye of Polyester Fabric of Ultra-fine Fibre under Alkali Condition
Color method, the especially colouring method of brightly painted Polyester Fabric of Ultra-fine Fibre under Alkali Condition, can solve after dye liquor pH is adjusted to 3.5～4.0
The quality problems such as the poor, dyeing defect of level-dyeing property for certainly existing during low bath ratio dyeing.
Above-mentioned Polyester Fabric of Ultra-fine Fibre under Alkali Condition is soaked using adding water, and wherein the consumption of water is the capacity of staining machine of the present invention.
In staining procedure, the mixing of water, dyestuff and other auxiliary agents is dye liquor of the present invention." g/ in following staining procedures
L " refers both to the quality (gram) of the material added by every liter of water.
Disperse dyes of the present invention, specially decentralized high temperature type dye, with higher sublimation reliability.But due to
Molecular structure is more complicated, and affinity is higher, and the diffusion rate in polyster fibre is slower, and uniform dyeing property is poor, and color often occurs in Jing
The quality problems such as point, dyeing defect.The disperse dyes include that Foron CYANINE SWF are blue, it is also an option that other disperse dyes
It is in combination, such as MEKICRON VIOLET FBL orchids, MEKICRON BLUE BG orchids etc..
The Polyester Fabric of Ultra-fine Fibre under Alkali Condition is dyeed in air flow dyeing machine, and dye bath ratio is 1:4～8, such as 1:4、1:5、
1:6、1:7、1:8.Polyester Fabric of Ultra-fine Fibre under Alkali Condition is dyeed under the conditions of low bath raio using air flow dyeing machine, energy-conserving and environment-protective.
It is 3 DEG C/min that the working solution is warming up to 43 DEG C of heating rate；The dyeing that heats up is heated up using stagewise：Control
Dye liquor processed with the ramp of 2 DEG C/min to 100 DEG C, then with the ramp of 0.8 DEG C/min to 110 DEG C, finally with 1.8
DEG C/ramp of min is incubated to 130 DEG C, stagewise dyeing heating process flow process is shown in Fig. 1, and the wherein dyestuff in accompanying drawing 1 refers to
It is disperse dyes.Controlling intensification staining is strictly controlled by dye characteristic on dyestuff the temperature balanced to upper dye from the dye temperature that begins
Heating rate processed, slows down intensification within the scope of the high temperature of dye-uptake, or even dyes certain hour, Ran Houzai in this temperature
Continue the dyeing that heats up.Disperse dyes can be made to keep more slow dye-uptake using the stagewise temperature-rising method of the present invention, from
And it is more uniform to dye Polyester Fabric of Ultra-fine Fibre under Alkali Condition.
Disperse dyes and remaining levelling agent, the dispersion dye that when described 43 DEG C add are added when dye liquor is warming up to 43 DEG C again linearly
The linear addition time of material and remaining levelling agent is 20min；The levelling agent is PRDN, the part levelling agent and remaining level dyeing
The consumption sum of agent be 0.5～4g/L, such as 0.6g/L, 0.65g/L, 0.7g/L, 0.8g/L, 0.9g/L, 1g/L, 1.5g/L,
2g/L, 2.5g/L, 3g/L, 3.5g/L, the part levelling agent are 2 with the mass ratio of remaining levelling agent:1.Levelling agent PRDN exists
Be 2/3 to be initially charged before dye liquor heats up before sawing sheet, linearly add levelling agent again, can effectively reduce dyestuff when being warming up to 43 DEG C of insulations
Aggregation.
The consumption of the disperse dyes be 0.6～6% (OWF), such as 0.7% (OWF), 0.8% (OWF), 0.9%
(OWF), 1% (OWF), 1.1% (OWF), 1.2% (OWF), 1.3% (OWF), 1.5% (OWF), 1.8% (OWF), 2%
(OWF), 2.2% (OWF), 2.4% (OWF), 2.5% (OWF), 2.8% (OWF), 3% (OWF), 3.2% (OWF), 3.4%
(OWF), 3.5% (OWF), 3.7% (OWF), 3.8% (OWF), 3.9% (OWF), 4% (OWF), 4.2% (OWF), 4.5%
(OWF), 5% (OWF), 5.5% (OWF), 6% (OWF).
As super fine polyester specific surface is knitted greatly, low bath ratio dyeing is raised with temperature, is easily contaminated too fast in appearance, is produced color
Flower, a difference, the molecular weight of disperse dyes are especially disperseed gorgeous blue SWF molecular weight super large, are easily gathered in dyeing course than larger
Collection.The reason for producing heat-aggregated is mainly with the raising of temperature, and the activation energy of dyestuff itself increases therewith, and dyestuff crystal grain is sent out
The probability of raw collision increases, and the poor dyestuff micelle of those dispersion stabilizations or the dyestuff crystal grain for having dissociated will gather again
Collection, forms new or bigger dye granule, or even dye aggregation body.In high temperature temperature-fall period, dyestuff also can be because of water temperature
Reduce, thermal vibration weakens, and dissolubility declines, dyestuff separates out and secondary aggregation occurs.This " the heat accumulation of disperse dyes
Property ", generally believe three kinds of situations：
(1) the dyestuff unimolecule for having dissolved adsorbs again on dye crystal surface, increases crystal grain, and its crystal formation is constant.
(2) free dye molecule or crystal grain are assembled again, form new crystal formation.
(3) small dyestuff crystal grain forms bigger dye granule without dissolving, direct collision, and this phenomenon generally occurs
In the temperature rise period.This big dye aggregation body not only affects level dyeing, contaminates thoroughly effect, or even can produce " tar compound " and cause
The dye defect that cannot be repaired.The high temperature aggregation schematic diagram of disperse dyes is shown in Fig. 3.
The softening agent is CN, and the consumption of the softening agent is 1～3g/L, such as 1.2g/L, 1.3g/L, 1.5g/L,
1.4g/L、1.5g/L、1.8g/L、2g/L、2.2g/L、2.5g/L、2.8g/L.The softening agent CN of the present invention is wetting softener,
The effect of wetting softener is the friction factor for reducing fabric and equipment, so as to reduce the generation of fabric scratch and wrinkle trace.
The extender is DFM, and the consumption of the extender is 0.5～2g/L；Disperse gorgeous blue SWF or other macromole
The molecular mass of disperse dyes is very big, even if comparing in polyster fibre difficult to get access below in high temperature of 120 DEG C～130 DEG C dyeing condition
Portion, the diffusion rate in polyster fibre are also slow, it is necessary to have longer high-temperature holding time, add extender DFM
The intermolecular space of super fine polyester can effectively be expanded, allow the gorgeous blue SWF supramoleculars of dispersion can more preferably in super fine polyester internal diffusion,
Dye balance can be reached faster and the uniform repeatability effect of dye thoroughly is good.
PH value affects little to conventional disperse dyes, as long as even if pH value control some fluctuations in the range of 3～6, to upper
The impact of dye rate yet very little, does not result in obvious aberration.Under conditions of pH ＞ 6, conventional disperse dyes can occur hydrolysis, color
Can shoal, coloured light mutation.But blue SWF gorgeous for disperse dyes, in actual production, with traditional HAc and NaAc buffer solution
Between control pH=4.5～5, during dyeing, color yield is low, color dot easily occurs.Therefore the present invention adopts citric acid as pH regulator
Agent, the consumption of the citric acid is 0.5～1g/L.The pH of dye liquor can also be adjusted using traditional HAc/NaAc buffer solution,
But when pH regulator is to 3.5～4, the consumption of HAc is a lot, readily volatilized, pollutes environment, and adopts citric acid to adjust dye liquor
PH, the problem that the HAc occurred when adjusting dye liquor pH from tradition HAc/NaAc buffer solution can be avoided readily volatilized, low bath raio
Dyeing also makes the colouring method of the present invention also have the advantages that Environmentally-frielow-energy-consumptipolycarboxylic low-energy-consumptipolycarboxylic.
The time of 130 DEG C of insulations is 30min.
Also need to be lowered the temperature after the dyeing that heats up, the cooling is lowered the temperature for stagewise：Control dye liquor is lowered the temperature with 4 DEG C/min
To after 110 DEG C, 95 DEG C are cooled to 2.5 DEG C/min, 70 DEG C of drainings are cooled to 1.5 DEG C/min finally.
Also include high temperature pre-setting step before the staining procedure：Polyester Fabric of Ultra-fine Fibre under Alkali Condition is placed in pre-setting machine,
Under the conditions of 190 DEG C, pre-setting processes 20～30s.The easy contraction distortion under damp and hot hot conditionss of super fine polyester stockinette, makes to knit
Thing produces permanent wrinkle print, it is difficult to eliminate, high temperature pre-setting can reduce or eliminate super fine polyester stockinette in spinning drawing and
The tension force produced in weaving processing is irregular, while can avoid super fine polyester stockinette overrelaxation and crimping that dyeing flower occurs.But
Too the predetermined fabric of high-temperature can cause the loss of fabric elastic, should require that rationally control is predetermined according to fabric specification and finished product elastic force
Shape condition.
Also include reduction clearing step after the staining procedure：Water and sodium hydroxide is added to be made into cleanout fluid, cleanout fluid
The powder that takes a policy after being warming up to 60 DEG C process, then controls the cleanout fluid Jing after sodium hydrosulfite process and is warming up to 85 DEG C of insulations, then drop
Temperature is finally neutralized process to the Polyester Fabric of Ultra-fine Fibre under Alkali Condition after reduction cleaning to 70 DEG C of drainings.The technological process of reduction cleaning is shown in
Fig. 2.
The consumption of the water in reduction clearing step of the present invention is the capacity of air flow dyeing machine.Wherein " g/L " is equal
Refer to the quality (g) of the material of every liter of water addition.
The consumption of the sodium hydroxide is 4～6g/L；
It is 4 DEG C/min that the cleanout fluid is warming up to 60 DEG C of heating rate；
It is 3 DEG C/min that cleanout fluid Jing after sodium hydrosulfite process is warming up to 85 DEG C of heating rate, and temperature retention time is 9min；Institute
State sodium hydrosulfite to add at twice：1/2 sodium hydrosulfite insulation 3min is firstly added, remaining 1/2 sodium hydrosulfite insulation 3min is then added；
Sodium hydrosulfite adds the loose colour for being conducive to further washing Polyester Fabric of Ultra-fine Fibre under Alkali Condition fiber surface at twice.
It is 1.5 DEG C/min that the cleanout fluid is cooled to 70 DEG C of rate of temperature fall；
The neutralisation treatment includes：Water and 0.3g/L citric acids is added toward the Polyester Fabric of Ultra-fine Fibre under Alkali Condition after reduction cleaning, with 3
DEG C/ramp of min to 70 DEG C of cleaning 5min after draining, add water and 0.2g/L citric acids, draining after cleaning 5min.Adopt
With draining again after sour neutralisation treatment, then the alkali liquor on dacron is washed while can also avoid polluting environment.
Compared with prior art, beneficial effects of the present invention are：Including staining procedure：Toward the Polyester Fabric of Ultra-fine Fibre under Alkali Condition for soaking
Add softening agent, part levelling agent and extender to be made into working solution, and pH adjusting agent adjustment work liquid pH is added to 3.5～4.0,
Disperse dyes and remaining levelling agent is added to be made into dye liquor when being warming up to 43 DEG C, then heat up dyeing.For Polyester Fabric of Ultra-fine Fibre under Alkali Condition
Colouring method, the especially colouring method of brightly painted Polyester Fabric of Ultra-fine Fibre under Alkali Condition, simultaneously add in dye liquor softening agent, levelling agent and
Extender and by dye liquor pH be adjusted to 3.5～4.0 can solve low bath ratio dyeing when the quality such as the poor, dyeing defect of level-dyeing property that exists ask
Topic.The dye-uptake of disperse dyes can be improved using the colouring method of the present invention, in preventing dyestuff high temperature temperature-fall period, occur two
Secondary aggregation, and ensure that every color fastness of Polyester Fabric of Ultra-fine Fibre under Alkali Condition reaches more than 4 grades, dyeability is improved, is obtained preferably
Color, while also have the advantages that Environmentally-frielow-energy-consumptipolycarboxylic low-energy-consumptipolycarboxylic.
Description of the drawings
Fig. 1 is the process chart of staining procedure of the present invention.
Fig. 2 is the process chart of reduction clearing step of the present invention.
Fig. 3 is the high temperature aggregation schematic diagram of existing disperse dyes.
Fig. 4 is the dye-uptake that the levelling agent PRDN of the present invention disperses gorgeous blue SWF under condition of different temperatures.
Fig. 5 is the dye-uptake that existing levelling agent DPS disperses gorgeous blue SWF under condition of different temperatures.
Fig. 6 is the dye-uptake of the gorgeous blue SWF of dispersion when being not added with levelling agent.
Specific embodiment
Below in conjunction with the accompanying drawings 1～6 and by specific embodiment further illustrating technical scheme.
As no specific instructions, various raw materials of the invention are commercially available buys, or is prepared according to the conventional method of this area
Obtain.
Embodiment 1 disperses gorgeous blue Polyester Fabric of Ultra-fine Fibre under Alkali Condition (light color)
Fabric：Super fine polyester 500Kg (88%Poly+12%Lycra), specification are 50D/144F SD Poly+40D
Lycra, door width 160cm, grammes per square metre 95g/m2
Staining machine：THEN air flow dyeing machines
Dyeing recipe is as follows：
Polyester Fabric of Ultra-fine Fibre under Alkali Condition is placed in pre-setting machine, processes 20s in 190 DEG C of pre-settings；Then Polyester Fabric of Ultra-fine Fibre under Alkali Condition is put
In staining machine, add water and soak, the gorgeous orchid of dispersion, softening agent, 2/3 levelling agent and extender is added by above-mentioned formula, add Fructus Citri Limoniae
Acid for adjusting pH and linearly adds disperse dyes Foron CYANINE SWF to 3.92 with the ramp of 3 DEG C/min to 43 DEG C
Blue and remaining 1/3 levelling agent (the addition time is 20min), with the ramp of 2 DEG C/min to 100 DEG C, then with 0.8 DEG C/min
110 DEG C are warming up to, then 130 DEG C of insulation 30min are warming up to 1.3 DEG C/min, finally cooling is processed：110 are cooled to 4 DEG C/min
After DEG C, 95 DEG C are cooled to 2.5 DEG C/min, 70 DEG C of drainings are cooled to 1.5 DEG C/min finally；Add water, 4g/L sodium hydroxide, with
1/2 process 3min of 4g/L sodium hydrosulfites after 4 DEG C/min is warming up to 60 DEG C, is added, remaining 1/2 sodium hydrosulfite is added and is processed
3min, is warming up to 85 DEG C of process 9min with 3 DEG C/min, is then cooled to 70 DEG C with 1.7 DEG C/min, draining；Add water, 0.3g/L lemons
Lemon acid, is warming up to 70 DEG C of process 5min, draining with 3 DEG C/min；Add water, 0.2g/L citric acids, clean 5min, draining.Carry out again
Post processing, is obtained blue Polyester Fabric of Ultra-fine Fibre under Alkali Condition (light color).
Embodiment 2 disperses gorgeous blue Polyester Fabric of Ultra-fine Fibre under Alkali Condition (middle color)
Fabric is same as Example 1 with staining machine.
Dyeing recipe is as follows：
According to above-mentioned formula and bath raio, using colouring method same as Example 1 prepare blue Polyester Fabric of Ultra-fine Fibre under Alkali Condition (in
Color), difference be pre-setting process time be 30s, using Fructus Citri Limoniae acid for adjusting pH to 3.75.
Embodiment 3 disperses gorgeous blue Polyester Fabric of Ultra-fine Fibre under Alkali Condition (dark color)
Fabric is same as Example 1 with staining machine.
Dyeing recipe：
According to above-mentioned formula and bath raio, blue Polyester Fabric of Ultra-fine Fibre under Alkali Condition is prepared using colouring method same as Example 1 (deep
Color), difference is that, using Fructus Citri Limoniae acid for adjusting pH to 3.56, sodium hydroxide is 6g/L with the addition of sodium hydrosulfite.
Embodiment 4
Fabric is same as Example 1 with staining machine.
Dyeing recipe：
According to above-mentioned dyeing recipe and bath raio, blue super fine polyester is prepared using colouring method same as Example 1 and is knitted
Thing (middle color).
Embodiment 5
Fabric is same as Example 1 with staining machine.
Dyeing recipe：
According to above-mentioned dyeing recipe and bath raio, blue super fine polyester is prepared using colouring method same as Example 1 and is knitted
Thing (dark color).
Comparative example 1
The consumption of citric acid is 0.4g/L, and other are same as Example 1.
Comparative example 2
The consumption of citric acid is 0.2g/L, and other are same as Example 1.
Comparative example 3
Not adding citric acid, other are same as Example 1.
Comparative example 4
Dye liquor pH is adjusted using HAc/NaAc buffer, concrete consumption is shown in Table 2, and other are same as Example 1.
Comparative example 5
Levelling agent PRDN was disposably added before dye liquor intensification, and other are same as Example 1.
Super fine polyester in test above-described embodiment 1～3, comparative example 1～3 after dyeing (adjusting dyeing pH using citric acid)
The K/S values of fabric and Color are shown in Table 1, after test comparison example 4 is dyeed (adjust dyeing pH using HAc/NaAc buffer solution)
Polyester Fabric of Ultra-fine Fibre under Alkali Condition K/S values and Color be shown in Table 2.
The Color of Polyester Fabric of Ultra-fine Fibre under Alkali Condition after 1. Fructus Citri Limoniae acid for adjusting pH of table
Table 2.HAc/NaAc buffer solution adjusts the Color of Polyester Fabric of Ultra-fine Fibre under Alkali Condition after pH
Found by contrast table 1, table 2, the Color of pH value blue SWF gorgeous on disperse dyes affects larger, pH value 3.5～
When 4.0, fabric K/S value highests.Very well, pH value gradually rises effect, and K/S values are gradually reduced, and color dot is more serious.Illustrate that pH is inclined
There is secondary aggregation in height, gorgeous blue SWF dyestuffs, produce point.PH value is most preferably controlled between 3.5～4.0, but weak acid HAc is very
Difficult stable control pH is between 3.5～4.0, and the HAc high volatilities of high concentration, and abnormal smells from the patient is very big, easily pollutes environment, no
Beneficial to the healthy of people, therefore, consider, contaminated between 3.5～4.0 again using citric acid control dye liquor pH value
Color, the Color of Polyester Fabric of Ultra-fine Fibre under Alkali Condition are optimal, and dyeing environmental protection.
This advanced in yearsization (is enjoyed using levelling agent PRDN, the levelling agent DPS of the present invention under spectrophotometric determination condition of different temperatures
Work) and the absorbance of dye liquor before and after the dyeing of Polyester Fabric of Ultra-fine Fibre under Alkali Condition during levelling agent is not added with, and dye-uptake, test is calculated by formula (1)
As a result Fig. 4, Fig. 5, Fig. 6 is seen respectively：
Dye-uptake (%)=(1-nA1/mA0) × 100% (1)
In formula：M/n------- dyes front/rear dye liquor extension rate；
A0/A1--- -- dyes the absorbance after front/rear dye liquor dilutes m/n times.
From fig. 6, it can be seen that between 100 DEG C～130 DEG C, dye-uptake steeply rises, this easily causes the irregular of dyeing,
Therefore, the level-dyeing property of fabric to be improved, just has to slow down the dye-uptake of dyestuff, can be seen that in dye liquor from Fig. 4, Fig. 5 and adds
Levelling agent can slow down the speed contaminated on dyestuff, be conducive to improving the dyeability of super fine polyester.In Fig. 4, adsorption curve is than in Fig. 5
It is more gentle, it is therefore more suitable from levelling agent PRDN.And disperse gorgeous blue SWF (before dye liquor heats up) in sawing sheet to add 2/
The levelling agent PRDN of 3 consumptions, and boiling water sawing sheet is used, it is effectively reduced gathering for dyestuff.And the levelling agent PRDN in comparative example 5 exists
Dye liquor is disposably added before heating up, and in follow-up temperature-rise period, dyestuff is easily clumped together.
As shown in Figure 4, disperse gorgeous blue SWF below 130 DEG C, with the rising of temperature, test dye power part gradually increases,
When being raised to 130 DEG C, dye-uptake reaches balance, and holding time, sample dye-uptake are not further added by, and under the conditions of 130 DEG C are incubated 30
Divide and plant highly beneficial to the level-dyeing property of Polyester Fabric of Ultra-fine Fibre under Alkali Condition.90% temperature range is raised to by 15% relative to test dye, point
Substantially 100-130 DEG C of gorgeous blue SWF is dissipated, this warm area should be slow heating zone, and 100-110 DEG C controls heating rate for 1.0；
110 DEG C～130 DEG C control heating rate for 0.5 DEG C/min.
The impact of the shifting dye rate of the extender DFM blue SWFs gorgeous to dispersion of variable concentrations, test result is tested in the steps below
It is shown in Table 3：
(1) Fructus Citri Limoniae acid and direct dyes are added, be not added with other auxiliary agents, dye liquor prepared by water ratio.
(2) standby 3 pieces of 4 grams of Polyester Fabric of Ultra-fine Fibre under Alkali Condition (cloth A, cloth B and cloth C), cloth A and cloth B is together put into dyeing temperature (130
DEG C) contaminate 30 minutes.
(3) it is careful after lowering the temperature to take out cloth A, extrude dye liquor, dry cloth after reduction cleaning.
(4) 4 grams of fabric cloth C of the cloth B for having dyed and another piece of identical, separately add clear water co-bathing dyeing to be incubated 30 minutes.
(5) it is careful to take out cloth B and cloth C, extrude dye liquor, dry cloth after reduction cleaning.
It is standard that color matching system is surveyed in cloth B with Datacolor, and to cloth B reading dynamics values, gained percentage rate has been both shifting dye to cloth C
Rate.
The extender DFM of 3. variable concentrations of table contaminates effect to the shifting for disperseing gorgeous blue SWF
| Expansion agent concentration (g/L) | 0 | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3 |
| Move dye rate (%) | 16 | 21 | 24 | 28 | 33 | 34 | 35 |
From table 3 it can be seen that when being not added with extender, disperseing the shifting dye rate only 16% of gorgeous blue SWF, and add extender DFM
The shifting dye rate for disperseing gorgeous blue SWF can be effectively improved：When extender DFM consumptions are more than 2g/L, shifting dye rate increase is no longer obvious, examines
Consider cost, actual production is most suitable from the extender DFM of 2g/L.
Dye sample aberration △ E are determined in D65 light sources using Datacolor Computer color testings instrument, △ E numerical value is with Customer Standard color
Plate is used as reference colours.Dye sample aberration obtained by testing example 1～5 and comparative example 3,5, test result are shown in Table 4.
4. Polyester Fabric of Ultra-fine Fibre under Alkali Condition low bath ratio dyeing colour stability of table
As shown in Table 4, dyeed using the method for the present invention, the color of Polyester Fabric of Ultra-fine Fibre under Alkali Condition can reach Customer Standard,
And dye also can be up to standard with the color of cylinder, Color is more satisfactory.And adding citric acid or levelling agent are not disposably added
Dyeed again, the color aberration of obtained Polyester Fabric of Ultra-fine Fibre under Alkali Condition is very big.
Using the method dye Polyester Fabric of Ultra-fine Fibre under Alkali Condition 500Kg of embodiment 1, divide 20 by the Polyester Fabric of Ultra-fine Fibre under Alkali Condition for having contaminated, use
Datacolor surveys color matching system 20 fabrics and surveys 555 color separations, the results are shown in Table 5.
The color difference analysis of the big production finished product of 5. Polyester Fabric of Ultra-fine Fibre under Alkali Condition low bath ratio dyeing of table
Note：In table, 1-20 is numbered for cloth.555Sort Code represent the depth for the 1st 5；Represent shading value for 2nd 5；3rd
Individual 5 represent coloured light.555 is the meansigma methodss of the 1-20 depth, shading value, coloured light.The gorgeous blue SWF of this cylinder disperse dyes is low, and bath raio dye is super
Thin dacron 555Sort Code are 212 (differences of the every maxima and minima of the depth, shading value, coloured light), and difference is total
With for 5 (2+1+2).Summation is excellent less than 5, and 5～7 is up to standard, does not pass through more than 7.
From the data of table 5, the aberration of big production finished product is respectively less than 7, and Color is preferable.
The wash water fastness of the dye sample according to obtained by AATCC Test Method 61-2008 testing example 1～3；Root
According to the water of the dye sample obtained by AATCC Test Method 107-2008 testing example 1～3；According to JIS Test
Method《Big ball method color tears fastness》The bleed fastness of the dye sample obtained by testing example 1～3；According to AATCC Test
The crock fastness of the dye sample obtained by Method 8-2003 testing example 1～3；Test result is shown in Table 6.
6. color fastness test result of table
As shown in Table 6, disperse the post-treated rear fabric fastness of gorgeous blue SWF dye Polyester Fabric of Ultra-fine Fibre under Alkali Condition can control 4 grades with
On.
In sum, Polyester Fabric of Ultra-fine Fibre under Alkali Condition is dyeed using the method for the present invention, 4 are reached in the every color fastness of guarantee
Dye-uptake can be improved, dyeing defect is prevented while more than level, improving dyeability, preventing from disperseing gorgeous blue SWF dyeing high
There is Second Aggregation during temperature drop temperature, obtain preferable Color.
Above example only for illustrating the method detailed of the present invention, the invention is not limited in above-mentioned method detailed, i.e.,
Do not mean that the present invention has to rely on above-mentioned method detailed and could implement.Person of ordinary skill in the field is it will be clearly understood that right
Any improvement of the present invention, the addition of equivalence replacement and auxiliary element to each raw material of product of the present invention, the selection of concrete mode
Deng within the scope of all falling within protection scope of the present invention and disclosure.
Claims (8)
1. a kind of colouring method of Polyester Fabric of Ultra-fine Fibre under Alkali Condition, it is characterised in that including staining procedure：Toward the Polyester Fabric of Ultra-fine Fibre under Alkali Condition for soaking
Middle addition softening agent, part levelling agent and extender are made into working solution, and add pH adjusting agent adjustment work liquid pH to 3.5～
4.0, add disperse dyes and remaining levelling agent to be made into dye liquor when being warming up to 43 DEG C, then heat up dyeing；
It is 3 DEG C/min that the working solution is warming up to 43 DEG C of heating rate；The dyeing that heats up is heated up using stagewise：Control dye
Liquid with the ramp of 2 DEG C/min to 100 DEG C, then with the ramp of 0.8 DEG C/min to 110 DEG C, finally with 1.8 DEG C/min
Ramp to 130 DEG C be incubated；
Disperse dyes and remaining levelling agent are added when the working solution is warming up to 43 DEG C again linearly, the disperse dyes and residue are even
The linear addition time of stain is 20min；
The levelling agent is PRDN, and the consumption sum of the part levelling agent and remaining levelling agent is 0.5～4g/L, the part
Levelling agent is 2 with the mass ratio of remaining levelling agent:1.
2. colouring method according to claim 1, it is characterised in that the Polyester Fabric of Ultra-fine Fibre under Alkali Condition enters in air flow dyeing machine
Row dyeing, dye bath ratio is 1:4～8.
3. colouring method according to claim 1, it is characterised in that the consumption of the disperse dyes is 0.6～6%
(OWF)；
The softening agent is CN, and the consumption of the softening agent is 1～3g/L；
The extender is DFM, and the consumption of the extender is 0.5～2g/L；
The pH adjusting agent is citric acid, and the consumption of the pH adjusting agent is 0.5～1.2g/L.
4. colouring method according to claim 1, it is characterised in that the times of 130 DEG C of insulations are 30min.
5. colouring method according to claim 1, it is characterised in that also need to be lowered the temperature after the intensification dyeing, it is described
Lower the temperature and lower the temperature for stagewise：Control dye liquor be cooled to after 110 DEG C with 4 DEG C/min, be cooled to 95 DEG C with 2.5 DEG C/min, finally with
1.5 DEG C/min is cooled to 70 DEG C of drainings.
6. colouring method according to claim 1, it is characterised in that also include high temperature pre-setting before the staining procedure
Step：Polyester Fabric of Ultra-fine Fibre under Alkali Condition is placed in pre-setting machine, 20～30s is processed in 190 DEG C of pre-settings.
7. colouring method according to claim 1, it is characterised in that also walk including reduction cleaning after the staining procedure
Suddenly：Water and sodium hydroxide is added to be made into cleanout fluid, cleanout fluid takes a policy after being warming up to 60 DEG C powder process, then controls Jing insurances
Cleanout fluid after powder process is warming up to 85 DEG C of insulations, then is cooled to 70 DEG C of drainings, also needs to carry out Polyester Fabric of Ultra-fine Fibre under Alkali Condition after draining
Neutralisation treatment.
8. colouring method according to claim 7, it is characterised in that the consumption of the sodium hydroxide is 4～6g/L；
It is 4 DEG C/min that the cleanout fluid is warming up to 60 DEG C of heating rate；
It is 3 DEG C/min that cleanout fluid Jing after sodium hydrosulfite process is warming up to 85 DEG C of heating rate, and temperature retention time is 9min；
The sodium hydrosulfite is added at twice：1/2 sodium hydrosulfite insulation 3min is firstly added, remaining 1/2 sodium hydrosulfite is then added and is protected
Warm 3min；
It is 1.5 DEG C/min that the cleanout fluid is cooled to 70 DEG C of rate of temperature fall；
The neutralisation treatment includes：Water and 0.3g/L citric acids is added toward the Polyester Fabric of Ultra-fine Fibre under Alkali Condition after draining, with 3 DEG C/min's
Ramp adds water and 0.2g/L citric acids, draining after cleaning 5min to draining after 70 DEG C of cleaning 5min.
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