CN111074649A - Dyeing process of scarf fabric - Google Patents
Dyeing process of scarf fabric Download PDFInfo
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- CN111074649A CN111074649A CN201911336167.4A CN201911336167A CN111074649A CN 111074649 A CN111074649 A CN 111074649A CN 201911336167 A CN201911336167 A CN 201911336167A CN 111074649 A CN111074649 A CN 111074649A
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- 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
- 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
- D06P1/0004—General aspects of dyeing
- D06P1/0016—Dye baths containing a dyeing agent in a special form such as for instance in melted or solid form, as a floating film or gel, spray or aerosol, or atomised dyes
-
- 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
- D06P1/0032—Determining dye recipes and dyeing parameters; Colour matching or monitoring
-
- 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
- D06P1/651—Compounds without nitrogen
- D06P1/65168—Sulfur-containing compounds
-
- 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
Abstract
The invention discloses a scarf fabric dyeing process, which comprises the following steps of: a. treating the active dye solution: preheating the active dye solution to the optimal temperature, and then ultrasonically oscillating and filtering; b. processing the fabric: soaking and stirring the fabric in a non-nucleophilic organic solvent; c. sealing and dyeing: placing the treated fabric in a rotary drum in a sealed bin, introducing nitrogen into the sealed bin, adding an active dye solution to immerse the fabric, circularly flowing the active dye solution through a circulating pump, rotating the rotary drum and stirring the fabric; d. centrifugal separation: centrifugally separating the fabric, and removing the active dye solution on the surface; e. and (3) fixation: mixing the active dye solution with a dyeing accelerant and a leveling agent, and carrying out atomization steaming and color fixation on the fabric; f. cleaning: washing the fabric for multiple times by using a washing solvent, and separating and recycling the washing liquid after each washing; g. softening the fabric and drying. The invention has the characteristics of improving the utilization rate of the reactive dye, strengthening the color fastness and improving the dyeing effect.
Description
Technical Field
The invention relates to a dyeing process of a fabric, in particular to a dyeing process of a scarf fabric.
Background
Along with the improvement of society and living standard, people pay more and more attention to the environment, and because of the shortage of resources, the national policy on environmental protection is more and more strict, so energy conservation and emission reduction become the most important current target, and the water consumption for printing and dyeing needs to be reduced, and the emission of printing and dyeing sewage needs to be reduced. Because the cotton fiber has the characteristics of good skin-friendly property, ventilation, softness, moisture absorption and heat resistance, the cotton fiber is often made into close-fitting fabrics. For scarves, they are also often woven from cotton fibers, which have a soft feel, warmth and skin friendliness. In order to meet the requirements of people, scarf cotton fabrics are usually required to be dyed into different colors so as to be used in different situations. The scarf cotton fabric is dyed by four process flows of pretreatment, dyeing, after finishing and finished product inspection. After the processes are carried out, the fabric can be dyed with different colors. However, when dyeing the scarf materials woven by cotton fibers, the active dye is generally adopted to dye in the water phase, but in traditional water phase dyeing, the active dye can inevitably take place hydrolysis reaction, not only make the utilization ratio of active dye reduce, the rate of dyeing is not high, thereby need use a large amount of active dye, the cost and printing and dyeing wastewater have been increased, and the colour fastness is not high, the color after dyeing drops easily, the homogeneity of dyeing is also not good, the dyeing effect is not ideal, thereby make the cotton can not satisfy people's needs. Therefore, the existing dyeing process of the scarf cotton fabric has the problems of low utilization rate of reactive dye, low color fastness and poor dyeing effect.
Disclosure of Invention
The invention aims to provide a scarf fabric dyeing process. The invention has the characteristics of improving the utilization rate of the reactive dye, strengthening the color fastness and improving the dyeing effect.
The technical scheme of the invention is as follows: a dyeing process of scarf materials comprises the following steps:
a. treating the active dye solution: preheating the active dye liquor to the optimal temperature, then performing ultrasonic oscillation by ultrasonic waves, and filtering by a filter to obtain a product A;
b. processing the fabric: soaking the fabric in non-nucleophilic organic solvent for 0.5-1h, stirring every 5-10min for 10-15min to obtain product B;
c. sealing and dyeing: placing the product B in a rotary drum in a sealed bin, introducing nitrogen into the sealed bin, discharging air, adding 2/3-4/5 of the product A to immerse the product B, circularly flowing the product A through a circulating pump, rotating the rotary drum and stirring the product B at the same time, wherein the dyeing time is 0.8-1.5h, and obtaining a product C;
d. centrifugal separation: centrifuging the product C, and removing the active dye solution on the surface of the product C to obtain a product D;
e. and (3) fixation: mixing product A of 1/5-1/3 with accelerating agent and leveling agent, and performing atomization steaming and color fixation on product D to obtain product E;
f. cleaning: washing the product E for multiple times by using a washing solvent, and separating and recycling the washing liquid after each washing to obtain a product F;
g. softening the F product, and drying to obtain the finished product.
In the dyeing process of the scarf materials, in the step c, the horizontal support is arranged in the rotary drum, the article B is arranged on the horizontal support, the hammering devices are arranged on the upper side and the lower side of the horizontal support in the rotary drum, and the article B is hammered up and down through the hammering devices when air is exhausted and the article B is stirred.
In the step c, when the rotary drum is rotated, the scarf materials are firstly rotated clockwise for 5-10min and then rotated anticlockwise for 5-10min, when the scarf materials B are stirred, the scarf materials are firstly stirred anticlockwise for 5-10min and then stirred clockwise for 5-10min, and the steps are repeated until the scarf materials are dyed.
In the dyeing process of the scarf materials, in the step a, the reactive dye solution comprises methyl sulfoxide, dimethyl carbonate and a reactive dye.
In the dyeing process of the scarf materials, in the step b, the materials are sprayed for 2-3min by hot water at 50-80 ℃ before being soaked in the non-nucleophilic organic solvent.
In the dyeing process of the scarf materials, in the step b, the non-nucleophilic organic solvent is methyl sulfoxide.
In the dyeing process of the scarf materials, in the step d, the separated reactive dye solution is added into the step a again for use.
In the dyeing process of the scarf materials, in the step f, the washing times are 3-4 times.
In the dyeing process of the scarf materials, in the step f, the active dye and the organic solvent are separated from the cleaning solution, the active dye is added into the step a again for use, and the organic solvent is used as the cleaning solvent again for next cleaning.
In the dyeing process of the scarf materials, the steps d and e are repeated for 2-3 times.
Compared with the prior art, the active dye liquor and the fabric are respectively treated before dyeing, the active dye liquor is preheated, ultrasonically treated and filtered, the uniformity and the fineness of the active dye liquor are improved, the molecular motion capability in the active dye liquor is enhanced, the active dye liquor can more quickly enter the fabric, the dyeing speed of the active dye liquor is improved, the fabric is sprayed and infiltrated by a non-nucleophilic solvent, the fabric is fully swelled, a diffusion pore channel is effectively opened, the subsequent dyeing is promoted, the ineffective degradation of the active dye liquor is inhibited, the utilization rate is improved, and the active dye liquor is saved; the fabric is subjected to sealing dyeing in a nitrogen atmosphere, so that the oxidation-reduction reaction of oxygen and components in the active dye solution is avoided, and the active dye solution is saved; the fabric is impacted by the directional flowing of the active dye liquor through the circulating pump, and the fabric is stirred and hammered while being driven by the rotary drum to rotate, so that the turbulence degree of the active dye liquor is enhanced, the active dye liquor is continuously contacted with the fabric, the dyeing reaction times are increased, the purpose of rapid dyeing is achieved, the dyeing efficiency is improved, the impact strength of the active dye liquor is also improved, the active dye liquor is deep into fibers, the bonding strength of the active dye liquor and the fabric is improved, the fabric is not easy to fade subsequently, and the dyeing effect is enhanced; and finally, removing unstable floating colors on the fabric on the surface of the fabric through multiple centrifugal separation and secondary fumigation and dyeing, fixing dyed colors, improving the sufficiency, firmness and uniformity of fabric dyeing, and recycling the centrifugally separated active dye solution and the cleaning solution during cleaning, so that energy is saved and cost is reduced. Therefore, the invention has the characteristics of improving the utilization rate of the reactive dye, strengthening the color fastness and improving the dyeing effect.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.
Example 1.
A dyeing process of scarf materials comprises the following steps:
a. treating the active dye solution: preheating the active dye liquor to the optimal temperature, then performing ultrasonic oscillation by ultrasonic waves, and filtering by a filter to obtain a product A; the active dye solution comprises methyl sulfoxide, dimethyl carbonate and active dye.
Preheat active dye liquor in advance, dissolve the particulate matter in the active dye liquor, make the active dye liquor more even, fine and smooth, color easily, and through ultrasonic wave ultrasonic oscillation, further smash dye granule or auxiliary agent granule in the active dye liquor, the molecular motion ability reinforcing in the help active dye liquor, can enter into the surface fabric inside more fast, improve the speed of dyeing of active dye liquor, then filter through the filter, the particulate impurity in the active dye liquor of discharge, guarantee the purity of active dye liquor, be convenient for subsequent dyeing.
b. Processing the fabric: spraying the fabric with 50-80 deg.C hot water for 2-3min, soaking the fabric in non-nucleophilic organic solvent for 0.5-1h, stirring every 5-10min for 10-15min to obtain product B; the non-nucleophilic organic solvent may be methyl sulfoxide.
The fabric is softened by spraying hot water, so that the subsequent fiber is convenient to swell; then, the fabric is fully swelled through the infiltration of the non-nucleophilic organic solvent, and the non-nucleophilic organic solvent does not have a competitive reaction with the hydroxyl on the surface of the cotton fiber, so that the invalid degradation of the active dye solution is inhibited, the effective utilization rate of the active dye solution is improved, and the active dye solution is saved; and by stirring, the fabric is stretched, the swelling speed is accelerated, the swelling uniformity is improved, the diffusion pore channel of the active dye solution in the cotton fiber is effectively opened, and the adsorption and color fixation of the subsequent active dye solution on the cotton fiber are promoted.
c. Sealing and dyeing: placing the product B in a rotary drum in a sealed bin, arranging a horizontal support in the rotary drum, placing the product B on the horizontal support, arranging hammering devices on the upper side and the lower side of the horizontal support in the rotary drum, introducing nitrogen into the sealed bin, exhausting air, hammering the product B up and down through the hammering devices, adding the product A of 2/3-4/5 to immerse the product B, circularly flowing the product A through a circulating pump, stirring the product B while rotating the rotary drum, and hammering the product B up and down through the hammering devices, wherein the dyeing time is 0.8-1.5 h; rotating the drum clockwise for 5-10min and then counterclockwise for 5-10min, stirring B product counterclockwise for 5-10min and then clockwise for 5-10min, and repeating the above steps until dyeing is completed to obtain product C;
the fabric is placed in a nitrogen atmosphere in a sealed bin for dyeing, air is discharged, oxidation-reduction reaction between oxygen and components in the active dye solution is avoided, the components in the active dye solution are consumed, the effective utilization rate of the active dye solution is reduced, and therefore the active dye solution is saved; when air is exhausted, the fabric is hammered up and down through the hammer, so that air contained in a diffusion pore channel in the cotton fiber which is opened during swelling can be exhausted, the filling rate of nitrogen is improved, and the oxygen content is reduced; the fabric is impacted by the directional flowing of the active dye solution through the circulating pump, the washing fastness of dyeing is improved, the fabric is stirred and hammered while being driven by the rotary drum to rotate, the rotating direction of the rotary drum is opposite to the rotating direction of the fabric, and the fabric rotates for multiple times in multiple directions, so that the turbulence degree of the active dye solution is enhanced, the active dye solution is continuously contacted with the cloth, the dyeing reaction times are increased, the purpose of quick dyeing is achieved, the dyeing efficiency is improved, the impact force of the active dye solution is improved, the active dye solution is enabled to penetrate into fibers, the bonding strength of the active dye solution and the fabric is improved, the follow-up color of the fabric is not easy to fade, the dyeing effect is enhanced, and further, the fabric is unfolded and repeatedly moved back and forth, and the dyeing uniformity of the active dye solution is improved; through hammering, discharge the nitrogen gas that contains in the diffusion pore in the fibre for the active dye liquor fully enters into the diffusion pore of fibre, and the dye-uptake degree is high.
d. Centrifugal separation: centrifuging the product C, removing the active dye solution on the surface of the product C, and adding the separated active dye solution into the step a again for use to obtain a product D;
through centrifugal separation, get rid of unstable, the floating color that is in the surface fabric on the surface fabric, reduce and wash the situation of fading, add the active dye liquor that separates into step a again simultaneously, preheat, ultrasonic treatment and filter, obtain pure high active dye liquor, use the dyeing step once more in, improve the utilization ratio of active dye liquor, reduce the waste and the dyeing pollution emission of resource, save the water resource, practice thrift the cost.
e. And (3) fixation: mixing product A of 1/5-1/3 with accelerating agent and leveling agent, and performing atomization steaming and color fixation on product D to obtain product E;
and (b) mixing the residual active dye liquor obtained in the step (a) with a dyeing accelerant and a leveling agent again to steam and fix the color of the fabric, dyeing for the second time, wherein the molecular size of the fumigation liquor is small, the fumigation liquor can deeply enter fibers, the separated active dye liquor is supplemented, and the sufficiency, firmness and uniformity of fabric dyeing are ensured.
Repeating the step d and the step e2-3 times.
And the steps of centrifugal separation and color fixation are repeated, so that the floating and color complementing are continuously removed, and the color fastness of the fabric is greatly improved.
f. Cleaning: washing the product E for multiple times by using a washing solvent, wherein the washing times are 3-4 times, separating and recycling the washing liquid after each washing, separating the active dye and the organic solvent from the washing liquid, adding the active dye into the step a again for use, and using the organic solvent as the washing solvent again for next washing to obtain a product F;
and (b) washing the dyed fabric for multiple times by using an organic solvent, and then separating the washed washing liquid to obtain the reactive dye and the organic solvent, wherein the reactive dye can be added into the step (a) again for recycling, and the organic solvent can also be added into the next washing solvent for recycling, so that the resources are saved, and the cost is reduced.
g. Softening the F product, and drying to obtain the finished product.
Example 2.
A dyeing process of scarf materials comprises the following steps:
a. treating the active dye solution: preheating the active dye liquor to the optimal temperature, then performing ultrasonic oscillation by ultrasonic waves, and filtering by a filter to obtain a product A; the active dye solution comprises methyl sulfoxide, dimethyl carbonate and active dye.
b. Processing the fabric: spraying the fabric with 60 deg.C hot water for 3min, soaking the fabric in non-nucleophilic organic solvent for 0.8h, and stirring for 10min every 6min to obtain product B; the non-nucleophilic organic solvent may be methyl sulfoxide.
c. Sealing and dyeing: placing the product B in a rotary drum in a sealed bin, arranging a horizontal support in the rotary drum, placing the product B on the horizontal support, arranging hammering devices on the upper side and the lower side of the horizontal support in the rotary drum, introducing nitrogen into the sealed bin, exhausting air, hammering the product B up and down through the hammering devices, adding the product A of 2/3 to immerse the product B, circularly flowing the product A through a circulating pump, stirring the product B while rotating the rotary drum, hammering the product B up and down through the hammering devices, and enabling the dyeing time to be 1 h; rotating the drum clockwise for 10min and then anticlockwise for 10min, stirring the product B counterclockwise for 10min and then clockwise for 10min, and repeating the steps until dyeing is completed to obtain a product C;
d. centrifugal separation: centrifuging the product C, removing the active dye solution on the surface of the product C, and adding the separated active dye solution into the step a again for use to obtain a product D;
e. and (3) fixation: mixing product A of 1/3 with accelerating agent and leveling agent, and performing atomization steaming fixation on product D to obtain product E;
repeating step d and step e3 times.
f. Cleaning: washing the product E for multiple times by using a washing solvent, wherein the washing times are 3, separating and recycling the washing liquid after each washing, separating the active dye and the organic solvent from the washing liquid, adding the active dye into the step a again for use, and using the organic solvent as the washing solvent again for next washing to obtain a product F;
g. softening the F product, and drying to obtain the finished product.
Claims (10)
1. A dyeing process of scarf materials is characterized in that: the method comprises the following steps:
a. treating the active dye solution: preheating the active dye liquor to the optimal temperature, then performing ultrasonic oscillation by ultrasonic waves, and filtering by a filter to obtain a product A;
b. processing the fabric: soaking the fabric in non-nucleophilic organic solvent for 0.5-1h, stirring every 5-10min for 10-15min to obtain product B;
c. sealing and dyeing: placing the product B in a rotary drum in a sealed bin, introducing nitrogen into the sealed bin, discharging air, adding 2/3-4/5 of the product A to immerse the product A in the product B, circularly flowing the product A through a circulating pump, and stirring the product B while rotating the rotary drum to obtain a product C;
d. centrifugal separation: centrifuging the product C, and removing the active dye solution on the surface of the product C to obtain a product D;
e. and (3) fixation: mixing product A of 1/5-1/3 with accelerating agent and leveling agent, and performing atomization steaming and color fixation on product D to obtain product E;
f. cleaning: washing the product E for multiple times by using a washing solvent, and separating and recycling the washing liquid after each washing to obtain a product F;
g. softening the F product, and drying to obtain the finished product.
2. The process for dyeing scarf materials according to claim 1, characterized in that: and c, arranging a horizontal support in the rotary drum, arranging the B product on the horizontal support, arranging hammering devices on the upper side and the lower side of the horizontal support in the rotary drum, and hammering the B product up and down through the hammering devices when air is exhausted and the B product is stirred.
3. The process for dyeing scarf materials according to claim 1, characterized in that: in the step c, when the rotary drum is rotated, the rotary drum is rotated clockwise for 5-10min and then rotated anticlockwise for 5-10min, when the product B is stirred, the product B is stirred anticlockwise for 5-10min and then stirred clockwise for 5-10min, and the steps are repeated until dyeing is finished.
4. The process for dyeing scarf materials according to claim 1, characterized in that: in the step a, the reactive dye solution comprises methyl sulfoxide, dimethyl carbonate and a reactive dye.
5. The process for dyeing scarf materials according to claim 1, characterized in that: in the step b, before the fabric is soaked in the non-nucleophilic organic solvent, the fabric is sprayed for 2-3min by hot water at 50-80 ℃.
6. The process for dyeing scarf materials according to claim 1, characterized in that: in the step b, the non-nucleophilic organic solvent adopts methyl sulfoxide.
7. The process for dyeing scarf materials according to claim 1, characterized in that: in the step d, the separated active dye solution is added into the step a again for use.
8. The process for dyeing scarf materials according to claim 1, characterized in that: in the step f, the number of times of cleaning is 3-4.
9. The process for dyeing scarf materials according to claim 1, characterized in that: and f, separating the active dye and the organic solvent from the cleaning solution, adding the active dye into the step a again for use, and taking the organic solvent as the cleaning solvent again for next cleaning.
10. The process for dyeing scarf materials according to claim 1, characterized in that: and repeating the step d and the step e for 2-3 times.
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| CN201911336167.4A CN111074649A (en) | 2019-12-23 | 2019-12-23 | Dyeing process of scarf fabric |
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| CN201911336167.4A CN111074649A (en) | 2019-12-23 | 2019-12-23 | Dyeing process of scarf fabric |
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