CN102561063A - Rare earth mordant dyeing method for kapok fiber and textile thereof - Google Patents
Rare earth mordant dyeing method for kapok fiber and textile thereof Download PDFInfo
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Abstract
The invention relates to a rare earth mordant dyeing method for kapok fibers and textiles thereof. The method comprises the following steps: pre-treating kapok textile so as to remove some waxy xubstances, impurities and the like on the surface of the kapok fiber and achieve certain whiteness; and then adding a complexing rare earth mordant into a dye bath of the pretreated kapok textile, and mordant dyeing the kapok textile. Compared with the prior art, according to the dyeing method of the invention, the dyeing of the kapok fibers and textiles thereof is not limited to direct dyes and can also be used for other anionic dyes such as reactive dyes and the like, and the problems of low rate of dye-uptake, poor level-dyeing property, poor deep-color dyeing effect, poor dyeing fastness and the like are overcome.
Description
Technical field
The present invention relates to a kind of colouring method of textile fabric; Especially relate to a kind of method that improves bombax cotton and textile dyeing performance thereof, the kapok textiles adopt the rare earth mordant dying can improve dye-uptake, the dyestuff of dyestuff degree of fixation, dye the COLOR FASTNESS of back textiles.
Background technology
Bombax cotton is the fruit fiber of xylophyta silk cotton tree, is attached to kapok capsule inner walls, is formed by tapetum cell growth, growth.Bombax cotton and fruit adhewsive action power are little, thereby generally do not need special preliminary working equipment, only need large bamboo or wicker basket to sieve, and the kapok seed just can sink to the bottom voluntarily, can obtain bombax cotton.Bombax cotton has many natural characteristics such as green ecological, hollow ultralight, warmth retention property are good, natural antibacterial, moisture absorption.Bombax cotton is short because of its length, intensity is low, coherent difference and lack flexibility and be difficult to independent spinning, and these deficiencies have restricted its application and development aspect textile garment.But existing at present people utilizes bombax cotton and other fiber blends to produce the cold-proof underwear with fabulous thermal property, and its finished product has warming, the powerful quick moisture conducting of superelevation, thinner soft, slimmer and more graceful four big characteristics next to the shin.
Though bombax cotton and textile product thereof have some listings; But exist dyeing and back arrangement problem; Mainly be that available dye species few (only limiting to direct dyes), dye-uptake are low, level-dyeing property is poor, on dye problems such as bathochromic effect is poor, dyefastness is difficult to effectively improve; In addition, uneven dyeing also very easily appears in the blending of bombax cotton and other fibers and interweaving product.This might be and cotton fiber relatively, the content of cellulose of bombax cotton is obviously less, and bombax cotton has special morphosis and supramolecular structure, cause dye molecule on dye the comparison difficulty, and level-dyeing property, COLOR FASTNESS etc. are not ideal enough.And it is also fewer for the dyeing research that improves bombax cotton at present.
At current people's uphold nature, pursue under green, the ecological environment, the bombax cotton that research and development has special performance just seems particularly necessary.Therefore, be starved of a kind of method that improves the bombax cotton dyeability that provides, can dye, and can improve dye-uptake, degree of fixation, dye level and the COLOR FASTNESS etc. of dyestuff kapok with the dyestuff except that direct dyes.
Rare earth element (Rare Earth); Be called for short rare earth (RE or R); Mainly be meant lanthanide series in the periodic table of chemical element---lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), terbium (Tb), ytterbium (Yb), dysprosium (Dy), holmium (Ho), gadolinium (Gd), erbium (Er), thulium (Tm), lutetium (Lu), and with closely-related two elements of 15 elements of group of the lanthanides---totally 17 kinds of elements such as yttrium (Y), scandium (Sc) etc.The ion of rare earth element can form bond with hydroxyl, azo group or the sulfonic group etc. of dyestuff, fiber and other compounds, makes rare earth can be widely used in dyeing.
In the pre-treatment process of fabric, when adding a certain amount of rare earth in the treatment fluid, can increase the whiteness of fabric and improve capillary effect etc.According to document announcement, the reason that the adding rare earth can improve the capillary effect after the fabric pretreatment has two aspects: the one, and rare earth ion makes swelling of fiber, structural relaxation to the interaction of fiber.Experiment showed, that the rare earth pre-treatment can make the vertical clean mark of fabric, it is cylindric that fiber is, surface clean, short texture.Its two be since rare earth to the activation and the complexing of the impurity on the fiber, make its with contain elements such as N, O, S formed complex compound by cracking impurity, be dispersed in the solution through washing, thereby improved the capillary effect of fabric.In addition, rare earth element can make coloring matter activation on the fiber, and the reaction of itself and bleaching agent is carried out easily, reduces the activation energy of bleaching action, and promptly the bleaching action to fabric has the active catalytic effect; And through measuring, the maximum absorption wavelength of rare earth element itself is about 580nm, and promptly it has gold-tinted is selected the ability that absorbs, and raising has contribution to fabric whiteness.
Rare earth is mainly used in wool, real silk, acrylic fibers, polyamide fibre, terylene in dyeing processing, also can be used for the dyeing of strings such as cotton, fiber crops.Its main acting body increases deeply now, the discharging of level dyeing, minimizing dyeing waste water, shorten dyeing, reduce dyeing temperature and improve several aspects such as dyefastness.In the market, rare-earth dyeing assistant is to be multicomponent, the multifunctional dyeing auxiliary agent of main component with macromolecule rare-earth complex, rare earth oxide or rare-earth salts mostly.Its collection level dyeing, fixation, increase and be deeper than one, can improve the adhesion of dyestuff and fabric, increase colorfastness, the while can increase color depth (saturation degree, lightness etc.).
When the researcher of Sichuan Chengdu Textile higher junior college adopts the natural plant dye turmeric to be used for ramie fabric dyeing; Can dye bright-coloured dark dense yellow, and in this dyeing liquor, add rare earth and make mordant, can make fabric obtain dyefastness preferably; Improve dye-uptake; Reduce the solubility of dying material in water, thereby reduce pollution, and can improve acid, alkaline stability and the Exposure to Sunlight stability of natural plant dye dyeing finished product environment.And for example, in the experiment of ramie fabric being dyeed, still adopt above-mentioned technology and rare earth mordant, received good effect too with vegetable colours such as bush, betel nut, the coptis, cape jasmines.
Hai'an, Jiangsu silk printing and dyeing mill employing mixed chlorinated rare earth in the dyeing of silk broadcloth dye jigger helps and dyes, and has obtained good result.Practice shows that earth solution also has the very strong short effect of dying except that having to add the shades effect in the dyeing of silk fabrics, and dyeing time also slightly shortens than normal dyeing.Wang Yi compares with normal dyeing, and the silk fabrics COLOR FASTNESS of rare-earths dyeing improves, and can practice thrift dyestuff, reduces cost.But rare-earths dyeing has selectivity to dyestuff, coacervation can occur when part faintly acid, neutral dye and rare earth meet.
Rare earth also is widely used in the chemical finishing of textiles.The resistance to water of the textiles of handling through rare earth salts improves, and has anticorrosion, mothproof, acid-proof, performance such as fire-retardant, antibiotic, adds different rare earth salts, can improve the persistence of fabric crease, slows down owing to fold illumination and the mouldy damage that causes; Acrylic fiber with the chloride, nitrate or the sulfate that contain cerium sprayed can be made into fire-proof fabric; Lanthana can be used as the chemicals of silk and artificial silk weightening finish.Fabric is through rare earth-iron-boron and 1,10-Phen, 2,2 '-the tertiary solid complex arrangement of bipyridyl after, have stronger antibiotic, bacteriostasis.In addition, utilizing rare earth material as illuminator, through the light accumulation type fiber with noctilucence property that extraordinary spinning technique is processed, is a kind of novel high-tech functional fibre.
Summary of the invention
The object of the invention is exactly the rare earth mordant dying method that a kind of bombax cotton and textiles thereof are provided for the defective that overcomes above-mentioned prior art existence; Can let the dyeing of bombax cotton and textiles thereof not only be confined to direct dyes; Also can use other anionic dye; Dye like REACTIVE DYES etc., and overcome that dye-uptake is low, level-dyeing property is poor, on dye problems such as bathochromic effect is poor, dyefastness difference.
The object of the invention can be realized through following technical scheme:
The rare earth mordant dying method of a kind of bombax cotton and textiles thereof may further comprise the steps:
(1) the kapok textiles is carried out pre-treatment, remove the wax and the impurity on bombax cotton surface, and make bombax cotton reach certain whiteness;
(2) with putting into through the kapok textiles of pre-treatment in the dye bath that adds the complex rare-earth mordant, it is carried out mordant dying get final product.
Described kapok textiles comprises the blended yarn or the BLENDED FABRIC of kapok bulk fibre, kapok yarn, kapok fabric and kapok and other fiber.
Pre-treatment described in the step (1) comprises alkali treatment and bleaching.
Described alkali treatment is pectic substance, waxy substance, nitrogen substance, cotton seed hulls generation chemical degradation reaction or emulsification, the expanded effect etc. that utilize in caustic soda and other boiling-off additives and the bombax cotton, after washing, impurity is stripped from fiber or fabric.The alkali treatment solution that adopts under 95～100 ℃ temperature to textile treatment 2～3 hours; The mixed solution that the sodium metasilicate of the caustic soda that described alkali treatment solution is 10～15g/L, the surfactant of 0.5～2g/L and 1.5～3g/L constitutes, described surfactant comprises penetrating agent JFC or dispersant paregal O.
The purpose of described bleaching just is to remove the pigment in the bombax cotton, give fabric necessary with stable whiteness, fiber itself does not then receive significant damage.Adopt clorox, hydrogen peroxide solution or sodium chlorite that the kapok textiles is bleached processing; The bleaching concentration of hydrogen peroxide bleaching is 2～6g/L, and the pH value is 10～10.5, need to add sodium metasilicate or non-silicon stabilizing agent 1～2g/L, is to fabric treating 45～60min in temperature under 90～100 ℃ the condition; The bleaching concentration of sodium hypochlorite bleaching is 0.5～1.5g/L, and the pH value is 9～10, at 20～35 ℃ of room temperatures, fabric treating 30～45min; The bleaching concentration of chlorite bleaching is 1～2g/L, and the pH value is 4～4.5, adds acetic acid or ammonium sulfate as activator, is to fabric treating 60～90min in temperature under 40～80 ℃ the condition.
Rare earth in the complex rare-earth mordant described in the step (2) is lanthanum chloride, cerium chloride or neodymium chloride, preferred lanthanum chloride earth solution.
Complex rare-earth mordant described in the step (2) with citric acid as complexing agent; Form with the reaction of rare earth chloride ion coordination; Earth solution is under agitation slowly joined in the complexing agent part, use distilled water diluting then, wherein; The mol ratio of citric acid complexing agent and rare earth chloride ion is 1: 3～3: 1, optimization citric acid and lanthanum chloride with mol ratio complexing in 1: 1 as mordant.
Mordant dying described in the step (2) adopts rare earth co-bathing dyeing technology, and the complex rare-earth mordant is joined in the dye solution, and the control temperature is 40～90 ℃; Oscillation treatment 5～10min, the ceiba fiber textiles that will pass through pre-treatment then places dye liquor, and the control temperature is 40～90 ℃; 30～90min is handled in dyeing; Test its dye-uptake, take out, promptly get the kapok dyeing product through washing, oven dry again.
Described dyestuff is the anionic dyestuff, comprises direct dyes, REACTIVE DYES, ACID DYES or soluble vat dye; Described direct dyes comprise commercially available salad Fei Nier dyestuff; Described REACTIVE DYES comprise commercially available Cibacron FN; Described ACID DYES comprises commercially available Acid Red G or Weakly Acid Brilliant Blue RAW, and described soluble vat dye comprises commercially available cubozols dyestuff.
Complex rare-earth mordant consumption described in the step (2) is 0.5～3.5% (o.w.f.).
Compared with prior art; The present invention has adopted the method for rare earth to kapok textiles mordant dying, in dyeing, adds rare earth, and the hydroxyl on the cellulose can combine with the rare earth ion with positive trivalent; This is equivalent on cellulose fibre, add " dying seat ", is beneficial on the dyestuff and dyes; Because the rare earth ion electrical properties makes its generation " class dielectric " effect and reduces the fiber surface Zeta potential rapidly, and then combines with fiber near fiber, form strong gravity and " dye seat " simultaneously; And because the rare earth ion volume is less and have a stronger hydratability; Also can carry large quantity of moisture simultaneously and get into fibrous inside, make the crystallization edge swell of fiber and produce fine fisssure, be beneficial to the infiltration of dye molecule; Thereby improve the dye-uptake and the degree of fixation of dyestuff, improve the dyeability of kapok.
The specific embodiment
Below in conjunction with specific embodiment the present invention is elaborated.
Embodiment 1
The kapok pre-treatment
Kapok → alkali treatment → washing → oven dry → hydrogen peroxide bleaching processing → washing → oven dry.
The kapok bulk fibre
Alkali treatment solution, hydrogen peroxide bleaching Treatment Solution all are solvent with water, its component:
(1) alkali treatment solution: NaOH, 10g/L; Penetrating agent JFC, 1g/L; Paregal O, 1g/L; Sodium metasilicate, 2g/L; Bath raio, 1: 30.
(2) hydrogen peroxide bleaching Treatment Solution: 30% hydrogen peroxide solution, 2g/L; The hydrogen peroxide bleaching stabilizer sodium metasilicate, 1g/L; Using NaOH to regulate the pH value is 10.5～11; Bath raio, 1: 30.
Concrete operations:
Take by weighing a certain amount of kapok bulk fibre, immerse alkali treatment solution, handle 120min under 100 ℃ of conditions, take out, washing, oven dry.Immerse the hydrogen peroxide bleaching Treatment Solution then, handle 60min under 90 ℃ of conditions, take out, washing, dry the bombax cotton after the pre-treatment.
Embodiment 2
The direct dyeing of bombax cotton
Bombax cotton → the direct dyeing of pre-treatment → washing → oven dry.
The kapok bulk fibre
Alkali treatment solution, hydrogen peroxide bleaching Treatment Solution, direct dyeing liquid all are solvent with water, its component:
(1) preparation of alkali treatment solution and hydrogen peroxide bleaching Treatment Solution is with embodiment 1.
(2) direct dyeing liquid: direct dyes (the luxuriant and rich with fragrance Nile blue of salad), 1% (o.w.f); Penetrating agent JFC, 0.5g/L; Electrolyte sodium chloride, 20g/L; Bath raio, 1: 50.
Concrete operations:
Alkali treatment and hydrogen peroxide bleaching are handled like embodiment 1.
The direct dyes dye liquor 5～10min that under 50 ℃ of conditions, vibrates gets the bombax cotton after the quantitative pre-treatment then, immerses in the dye liquor, under 50 ℃ of conditions, dyes 90min, tests its dye-uptake, takes out washing, oven dry.
Embodiment 3
The reactive dyeing of bombax cotton
Bombax cotton → the reactive dyeing of pre-treatment → washing → oven dry.
The kapok bulk fibre
Alkali treatment solution, hydrogen peroxide bleaching Treatment Solution, reactive dyeing liquid all are solvent with water, its component:
(1) preparation of alkali treatment solution and hydrogen peroxide bleaching Treatment Solution is like embodiment 1.
(2) reactive dyeing liquid: REACTIVE DYES (vapour crust FN-R), 1% (o.w.f); Penetrating agent JFC, 2g/L; Electrolyte sodium chloride, 20g/L; Bath raio, 1: 50.
Concrete operations:
Alkali treatment and hydrogen peroxide bleaching are handled like embodiment 1.
The REACTIVE DYES dye liquor 5～10min that under 60 ℃ of conditions, vibrates gets the bombax cotton after the quantitative pre-treatment then, immerses in the dye liquor; On under 60 ℃ of conditions, dye 30min, test its dye-uptake, add alkaline agent sodium carbonate (10g/L) again; Fixation 60min under 60 ℃ of conditions, and test its dye-uptake, take out; Washing, oven dry.
Embodiment 4
The direct dyes rare earth complex mordant dying of bombax cotton
The bombax cotton of pre-treatment → direct dyes complexing mordant dying → washing → oven dry.
The kapok bulk fibre
The dyeing liquor of alkali treatment solution, hydrogen peroxide bleaching Treatment Solution, interpolation complex rare-earth mordant all is solvent with water, its component:
(1) preparation of alkali treatment solution and hydrogen peroxide bleaching Treatment Solution is with embodiment 1.
(2) the direct dyeing liquid of interpolation complex rare-earth mordant: direct dyes (the luxuriant and rich with fragrance Nile blue of salad), 1% (o.w.f); Complex rare-earth mordant (citric acid-lanthanum chloride), 0.8% (o.w.f.); Penetrating agent JFC, 0.5g/L; Electrolyte sodium chloride, 20g/L; Bath raio, 1: 50.
Concrete operations:
Alkali treatment and hydrogen peroxide bleaching are handled like embodiment 1.
The direct dyeing liquid that the adds the complex rare-earth mordant 5～10min that under 50 ℃ of conditions, vibrates gets the bombax cotton after the quantitative pre-treatment then, immerses in the dye liquor, under 50 ℃ of conditions, dyes 90min, tests its dye-uptake, takes out washing, oven dry.
Embodiment 5
The REACTIVE DYES rare earth complex mordant dying of bombax cotton
The bombax cotton of pre-treatment → REACTIVE DYES complexing mordant dying → washing → oven dry.
The kapok bulk fibre
The dyeing liquor of alkali treatment solution, hydrogen peroxide bleaching Treatment Solution, interpolation complex rare-earth mordant all is solvent with water, its component:
(1) preparation of alkali treatment solution and hydrogen peroxide bleaching Treatment Solution is like embodiment 1.
(2) the reactive dyeing liquid of interpolation complex rare-earth mordant: REACTIVE DYES (vapour crust FN-R), 1% (o.w.f); Complex rare-earth mordant (citric acid-lanthanum chloride), 0.8% (o.w.f.); Penetrating agent JFC, 2g/L; Electrolyte sodium chloride, 20g/l; Bath raio, 1: 50.
Concrete operations:
Alkali treatment and hydrogen peroxide bleaching are handled like embodiment 1.
The reactive dyeing liquid that the adds the complex rare-earth mordant 5～10min that under 60 ℃ of conditions, vibrates gets the bombax cotton after the quantitative pre-treatment then, immerses in the dye liquor; On under 60 ℃ of conditions, dye 30min, test its dye-uptake, add alkaline agent sodium carbonate (10g/L) again; Fixation 60min under 60 ℃ of conditions, and test its dye-uptake, take out; Washing, oven dry.
Different embodiment methods to the comparison of bombax cotton coloration result shown in table 1 and table 2.
Table 1 embodiment 2 compares with the coloration result of embodiment 4
Table 2 embodiment 3 compares with the coloration result of embodiment 5
Embodiment 6
The rare earth mordant dying method of a kind of bombax cotton and textiles thereof may further comprise the steps:
(1) the kapok textiles is carried out pre-treatment; Remove the wax and the impurity on bombax cotton surface; And make bombax cotton reach certain whiteness, wherein, pre-treatment comprises alkali treatment and bleaching; Alkali treatment is to utilize caustic soda and other boiling-off additives and pectic substance, waxy substance, nitrogen substance, cotton seed hulls generation chemical degradation reaction or emulsification, expanded effect etc.; After washing, impurity is stripped from fabric, adopt alkali treatment solution under 95 ℃ temperature to textile treatment 3 hours, alkali treatment solution is the mixed solution that the sodium metasilicate of penetrating agent JFC and 1.5g/L of caustic soda, the 0.5g/L of 10g/L constitutes.The purpose of bleaching just is to remove pigment; Give fabric necessary with stable whiteness, fiber itself does not then receive significant damage, adopts clorox that the kapok textiles is bleached processing; The bleaching concentration of sodium hypochlorite bleaching is 0.5g/L; The pH value is 9, at 20 ℃ of room temperatures, fabric treating 30min;
(2) the kapok textiles through pre-treatment is joined in the dye bath that adds the complex rare-earth mordant, it is carried out mordant dying get final product, the rare earth in the complex rare-earth mordant that uses is lanthanum chloride;, form as complexing agent with citric acid, under agitation slowly join earth solution in the complexing agent part with the rare-earth ion coordination reaction; Use distilled water diluting then, wherein, the mol ratio of citric acid complexing agent and lanthanum chloride ion is 1: 3; Mordant dying adopts rare earth co-bathing dyeing technology, and the complex rare-earth mordant is joined in the salad Fei Nier dye solution, and addition is 0.5% (o.w.f.); The control temperature is 40 ℃, oscillation treatment 10min, and the ceiba fiber textiles that will pass through pre-treatment then places dye liquor; The control temperature is 40 ℃, and 90min is handled in dyeing, tests its dye-uptake; Take out, promptly get the kapok dyeing product through washing, oven dry again.
Embodiment 7
The rare earth mordant dying method of a kind of bombax cotton and textiles thereof may further comprise the steps:
(1) the kapok textiles is carried out pre-treatment; Remove the wax and the impurity on bombax cotton surface; And make bombax cotton reach certain whiteness, wherein, pre-treatment comprises alkali treatment and bleaching; Alkali treatment is to utilize caustic soda and other boiling-off additives and pectic substance, waxy substance, nitrogen substance, cotton seed hulls generation chemical degradation reaction or emulsification, expanded effect etc.; After washing, impurity is stripped from fabric, adopt alkali treatment solution under 100 ℃ temperature to textile treatment 2 hours, alkali treatment solution is the mixed solution that the sodium metasilicate of penetrating agent JFC and 2g/L of caustic soda, the 1g/L of 12g/L constitutes.The purpose of bleaching just is to remove pigment; Give fabric necessary with stable whiteness, fiber itself does not then receive significant damage, adopts clorox that the kapok textiles is bleached processing; The bleaching concentration of sodium hypochlorite bleaching is 1.5g/L; The pH value is 10, at 35 ℃ of room temperatures, fabric treating 45min;
(2) the kapok textiles through pre-treatment is joined in the dye bath that adds the complex rare-earth mordant, it is carried out mordant dying get final product, the rare earth in the complex rare-earth mordant that uses is cerium chloride;, form with the rare-earth ion coordination reaction, as complexing agent with citric acid under agitation slowly joining in the complexing agent part behind the earth solution; Use distilled water diluting then, wherein, the mol ratio of citric acid complexing agent and cerium chloride ion is 1: 1; Mordant dying adopts rare earth co-bathing dyeing technology, and the complex rare-earth mordant is joined in the commercially available Cibacron FN dye solution, and addition is 1.5% (o.w.f.); The control temperature is 60 ℃, oscillation treatment 8min, and the ceiba fiber textiles that will pass through pre-treatment then places dye liquor; The control temperature is 60 ℃, and 60min is handled in dyeing, tests its dye-uptake; Take out, promptly get the kapok dyeing product through washing, oven dry again.
Embodiment 8
The rare earth mordant dying method of a kind of bombax cotton and textiles thereof may further comprise the steps:
(1) the kapok textiles is carried out pre-treatment; Remove the wax and the impurity on bombax cotton surface; And make bombax cotton reach certain whiteness, wherein, pre-treatment comprises alkali treatment and bleaching; Alkali treatment is to utilize caustic soda and other boiling-off additives and pectic substance, waxy substance, nitrogen substance, cotton seed hulls generation chemical degradation reaction or emulsification, expanded effect etc.; After washing, impurity is stripped from fabric, adopt alkali treatment solution under 95 ℃ temperature to textile treatment 3 hours, alkali treatment solution is the mixed solution that the sodium metasilicate of penetrating agent JFC and 1.5g/L of caustic soda, the 0.5g/L of 10g/L constitutes.The purpose of bleaching just is to remove pigment; Give fabric necessary with stable whiteness, fiber itself does not then receive significant damage, adopts sodium chlorite that the kapok textiles is bleached processing; The bleaching concentration of chlorite bleaching is 1g/L; The pH value is 4, adds acetic acid as activator, is to fabric treating 90min in temperature under 40 ℃ the condition;
(2) the kapok textiles through pre-treatment is joined in the dye bath that adds the complex rare-earth mordant, it is carried out mordant dying get final product, the rare earth in the complex rare-earth mordant that uses is cerium chloride;, form with the rare-earth ion coordination reaction, as complexing agent with citric acid under agitation slowly joining in the complexing agent part behind the earth solution; Use distilled water diluting then, wherein, the mol ratio of citric acid complexing agent and cerium chloride ion is 1: 1; Mordant dying adopts rare earth co-bathing dyeing technology, and the complex rare-earth mordant is joined in the commercially available Acid Red G dye solution, and addition is 2% (o.w.f.); The control temperature is 60 ℃, oscillation treatment 8min, and the ceiba fiber textiles that will pass through pre-treatment then places dye liquor; The control temperature is 60 ℃, and 60min is handled in dyeing, tests its dye-uptake; Take out, promptly get the kapok dyeing product through washing, oven dry again.
Embodiment 9
The rare earth mordant dying method of a kind of bombax cotton and textiles thereof may further comprise the steps:
(1) the kapok textiles is carried out pre-treatment; Remove the wax and the impurity on bombax cotton surface; And make bombax cotton reach certain whiteness, wherein, pre-treatment comprises alkali treatment and bleaching; Alkali treatment is to utilize caustic soda and other boiling-off additives and pectic substance, waxy substance, nitrogen substance, cotton seed hulls generation chemical degradation reaction or emulsification, expanded effect etc.; After washing, impurity is stripped from fabric, adopt alkali treatment solution under 100 ℃ temperature to textile treatment 2 hours, alkali treatment solution is the mixed solution that the sodium metasilicate of dispersant paregal O and 3g/L of caustic soda, the 2g/L of 15g/L constitutes.The purpose of bleaching just is to remove pigment; Give fabric necessary with stable whiteness, fiber itself does not then receive significant damage, adopts sodium chlorite that the kapok textiles is bleached processing; The bleaching concentration of chlorite bleaching is 2g/L; The pH value is 4.5, adds ammonium sulfate as activator, is to fabric treating 60min in temperature under 80 ℃ the condition;
(2) the kapok textiles through pre-treatment is joined in the dye bath that adds the complex rare-earth mordant, it is carried out mordant dying get final product, the rare earth in the complex rare-earth mordant that uses is neodymium chloride;, form with the rare-earth ion coordination reaction, as complexing agent with citric acid under agitation slowly joining in the complexing agent part behind the earth solution; Use distilled water diluting then, wherein, the mol ratio of citric acid complexing agent and neodymium chloride ion is 3: 1; Mordant dying adopts rare earth co-bathing dyeing technology, and the complex rare-earth mordant is joined in the commercially available cubozols dye solution, and addition is 3.5% (o.w.f.); The control temperature is 90 ℃, oscillation treatment 5min, and the ceiba fiber textiles that will pass through pre-treatment then places dye liquor; The control temperature is 90 ℃, and 30min is handled in dyeing, tests its dye-uptake; Take out, promptly get the kapok dyeing product through washing, oven dry again.
Claims (10)
1. the rare earth mordant dying method of bombax cotton and textiles thereof is characterized in that this method may further comprise the steps:
(1) the kapok textiles is carried out pre-treatment, remove the wax and the impurity on bombax cotton surface, and make bombax cotton reach certain whiteness;
(2) the kapok textiles through pre-treatment is joined in the dye bath that adds the complex rare-earth mordant, it is carried out mordant dying get final product.
2. the rare earth mordant dying method of a kind of bombax cotton according to claim 1 and textiles thereof; It is characterized in that described kapok textiles comprises the blended yarn or the BLENDED FABRIC of kapok bulk fibre, kapok yarn, kapok fabric and kapok and other fiber.
3. the rare earth mordant dying method of a kind of bombax cotton according to claim 1 and textiles thereof is characterized in that the pre-treatment described in the step (1) comprises alkali treatment and bleaching.
4. the rare earth mordant dying method of a kind of bombax cotton according to claim 3 and textiles thereof; It is characterized in that; Described alkali treatment be utilize alkali treatment solution under 95～100 ℃ temperature to textile treatment 2～3 hours; The mixed solution that the sodium metasilicate of the caustic soda that described alkali treatment solution is 10～15g/L, the surfactant of 0.5～2g/L and 1.5～3g/L constitutes, described surfactant comprises penetrating agent JFC or dispersant paregal O.
5. the rare earth mordant dying method of a kind of bombax cotton according to claim 3 and textiles thereof is characterized in that, described bleaching adopts clorox, hydrogen peroxide solution or sodium chlorite that the kapok textiles is bleached processing; The bleaching concentration of hydrogen peroxide bleaching is 2～6g/L, and the pH value is 10～10.5, need to add sodium metasilicate or non-silicon stabilizing agent 1～2g/L, is to fabric treating 45～60min in temperature under 90～100 ℃ the condition; The bleaching concentration of sodium hypochlorite bleaching is 0.5～1.5g/L, and the pH value is 9～10, at 20～35 ℃ of room temperatures, fabric treating 30～45min; The bleaching concentration of chlorite bleaching is 1～2g/L, and the pH value is 4～4.5, adds acetic acid or ammonium sulfate as activator, is to fabric treating 60～90min in temperature under 40～80 ℃ the condition.
6. the rare earth mordant dying method of a kind of bombax cotton according to claim 1 and textiles thereof is characterized in that the rare earth in the complex rare-earth mordant described in the step (2) is lanthanum chloride, cerium chloride or neodymium chloride, preferred lanthanum chloride earth solution.
7. the rare earth mordant dying method of a kind of bombax cotton according to claim 1 and textiles thereof; It is characterized in that; Complex rare-earth mordant described in the step (2), forms with the reaction of rare earth chloride ion coordination as complexing agent with citric acid, under agitation slowly joins earth solution in the complexing agent part; Use distilled water diluting then; Wherein, the mol ratio of citric acid complexing agent and rare earth chloride ion is 1: 3～3: 1, optimization citric acid and lanthanum chloride with mol ratio complexing in 1: 1 as mordant.
8. the rare earth mordant dying method of a kind of bombax cotton according to claim 1 and textiles thereof is characterized in that, the mordant dying described in the step (2) adopts rare earth co-bathing dyeing technology; The complex rare-earth mordant is joined in the dye solution, and the control temperature is 40～90 ℃, vibration place 5～10min; The ceiba fiber textiles that will pass through pre-treatment then places dye liquor; The control temperature is 40～90 ℃, and 30～90min is handled in dyeing, tests its dye-uptake; Take out, promptly get the kapok dyeing product through washing, oven dry again.
9. the rare earth mordant dying method of a kind of bombax cotton according to claim 8 and textiles thereof is characterized in that described dyestuff is the anionic dyestuff, comprises direct dyes, REACTIVE DYES, ACID DYES or soluble vat dye; Described direct dyes comprise commercially available salad Fei Nier dyestuff; Described REACTIVE DYES comprise commercially available Cibacron FN; Described ACID DYES comprises commercially available Acid Red G or Weakly Acid Brilliant Blue RAW, and described soluble vat dye comprises commercially available cubozols dyestuff.
10. the rare earth mordant dying method of a kind of bombax cotton according to claim 1 and textiles thereof is characterized in that, the complex rare-earth mordant consumption described in the step (2) is 0.5～3.5% (o.w.f.).
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| CN103046307A (en) * | 2013-01-15 | 2013-04-17 | 上海工程技术大学 | Method for improving water-absorbing quality of kawo kawo fibers by plasma treatment |
| CN103696283A (en) * | 2013-12-09 | 2014-04-02 | 常熟市爱博尔服饰有限公司 | Dyeing process of acid dye |
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| CN107827107B (en) * | 2017-12-18 | 2020-05-22 | 中国科学院山西煤炭化学研究所 | Preparation method of kapok-based hollow porous carbon micro-tube or porous carbon micro-strip |
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