CN113463411B - On-line dyeing process for nylon fancy yarn - Google Patents
On-line dyeing process for nylon fancy yarn Download PDFInfo
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- CN113463411B CN113463411B CN202010243987.5A CN202010243987A CN113463411B CN 113463411 B CN113463411 B CN 113463411B CN 202010243987 A CN202010243987 A CN 202010243987A CN 113463411 B CN113463411 B CN 113463411B
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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
- D06P1/39—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 acid dyes
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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
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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
- 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
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/24—Polyamides; Polyurethanes
- D06P3/241—Polyamides; Polyurethanes using acid dyes
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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
- 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
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/24—Polyamides; Polyurethanes
- D06P3/248—Polyamides; Polyurethanes using reactive dyes
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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
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/20—Physical treatments affecting dyeing, e.g. ultrasonic or electric
- D06P5/2066—Thermic treatments of textile materials
- D06P5/2077—Thermic treatments of textile materials after dyeing
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Abstract
The invention belongs to the technical field of textile dyeing, and particularly relates to an online dyeing process for a chinlon fancy yarn. The method comprises four steps of dye liquor preparation, nylon dyeing, yarn steaming and color fixation and post-treatment. When dye liquor is prepared, water, ethanol and penetrant systems in different proportions are adopted to dissolve chinlon by using acid or active dye; when dyeing, the on-line dyeing is carried out by a loose bobbin winder with a dyeing device, the raw nylon yarn or light nylon yarn passes through the surface of a rotating wheel which rotates at a high speed and the surface of which is provided with dye liquor, and the dye liquor is quickly adhered and permeates into the yarn to finally form the fancy nylon yarn. The method has the advantages of simple production operation, obviously reduced dyeing auxiliary agent consumption, short production and processing flow, green and environment-friendly dyeing process, realization of diversified fabric styles and adaptation to small-batch and fast-paced production modes.
Description
Technical Field
The invention belongs to the technical field of textile dyeing, and particularly relates to an online dyeing process for a chinlon fancy yarn.
Background
The nylon belongs to synthetic fiber, and has the outstanding advantages that: the wear resistance is higher than other fibers, the wear resistance is 10 times higher than that of cotton and 20 times higher than that of wool, and the durability is excellent; the elastic recovery rate of the stretch film is high, when the stretch film is stretched by 3-6%, the elastic recovery rate can reach 100%, and the stretch film can be bent for thousands of times without breaking; the strength of the nylon fiber is 1-2 times higher than that of cotton and 4-5 times higher than that of wool, and is 3 times higher than that of viscose fiber.
In addition, the moisture absorption of the nylon fabric belongs to a better variety in the synthetic fiber fabric, so that the clothes made of the nylon fabric are more comfortable to wear than the polyester clothes. The nylon fabric belongs to light fabric, and is only arranged behind polypropylene fiber and acrylic fiber fabrics in the synthetic fiber fabric, so that the nylon fabric is suitable for manufacturing mountaineering wear, winter clothes and the like.
The effect yarn generally refers to a yarn having various color patterns attached to the surface of the yarn, and may be a yarn having light color patterns attached to a dark ground yarn or a yarn having dark color patterns attached to a light ground yarn. At present, various short fibers are generally made into particles, and the particles are added during spinning after dyeing, colored wool particles can be twisted by cotton spinning equipment or carding wool spinning equipment, and segment colored yarns spun by adding the short fibers are generally thicker, single in style and long in processing flow.
At present, no literature report is available on a processing method for preparing fancy yarns by directly dyeing nylon fibers.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides an on-line dyeing process of nylon fancy yarn. The process has the advantages of simple production operation, obviously reduced dyeing auxiliary agent consumption, short processing flow, green and environment-friendly dyeing process, realization of diversified fabric styles and adaptation to small-batch and fast-paced production modes.
The invention relates to an on-line dyeing process of nylon fancy yarn, which comprises the following steps:
(1) Preparation of dye liquor
Dissolving chinlon with acid or active dye in a mixed system of water and ethanol, and regulating the pH value of the solution to 3.0-5.5 with organic acid;
(2) Nylon dyeing
Adding the prepared dye solution into a dye vat of a loose bobbin winder with a dyeing device, then performing loose bobbin winding on the nylon yarn, enabling the nylon yarn to pass through the surface of a rotating wheel with the dye solution on the surface in the dyeing device at a high speed, and enabling the dye solution to adhere and permeate into the yarn to finally form the fancy nylon yarn;
(3) Fixation by steaming
Steaming and fixing the nylon fancy yarn under the conditions of high temperature and high pressure;
(4) And (5) post-treatment.
Wherein:
in the step (1), a penetrating agent is also added to adjust the permeability of the dye liquor to the yarns, wherein the penetrating agent is a nonionic surfactant, and the dosage of the penetrating agent is 0-1% of the sum of the mass of water, ethanol, dye and the penetrating agent.
The nonionic surfactant is preferably WA-M, and the manufacturer is Ruri fine chemical industry.
The water in the step (1) accounts for 10-90% of the mass of the mixed system, and the ethanol accounts for 10-90% of the mixed solution system.
The organic acid in the step (1) is one or a mixture of acetic acid and citric acid.
The reactive dye in the step (1) is a Huntsman bright series dye.
The acid dye in the step (1) is a common acid dye.
The concentration of the acid dye or the reactive dye in the step (1) is 0.1-2%, and the concentration is the percentage content of the dye relative to the total mass of the dye solution.
The loose bobbin winder with the dyeing device in the step (2) comprises a dyeing rotating wheel, a servo motor and a dyeing tank.
The nylon yarn in the step (2) is dyed on line, the rotating speed of a loose bobbin winder is 100-1000 m/min, preferably 300-900 m/min, and the speed of a dyeing rotating wheel is 5-80 rpm, preferably 10-80 r/min; a great deal of experimental results and phenomena show that the main principle of the yarn dyed by the pine cone winder to have fancy color point effect is caused by the difference of 1-2 orders of magnitude between the machine speed and the dyeing rotating wheel.
The nylon yarn in the step (2) is one of nylon 6, nylon 66 or nylon 56, and the denier number of the yarn is 40-100D.
The nylon yarn in the step (2) is one of nylon raw yarn or dyed nylon light-color yarn.
Step (ii) of(2) The forming density of the nylon fancy yarn is controlled to be 0.35 to 0.45g/cm 3 。
Carrying out yarn steaming and color fixing treatment on the nylon fancy yarn in the step (3) by adopting a high-temperature high-pressure yarn steaming pot, wherein the yarn steaming temperature is 90-110 ℃, the yarn steaming time is 30-60 min, and the pressure is 0.05-0.09 MPa; the purpose of steaming yarn is to fix dye on fiber, active dye or acid dye can rapidly enter into the nylon fiber under steaming condition, and then forms covalent bond, ionic bond or combination in the form of Van der Waals force, hydrogen bond and the like with the fiber.
The post-treatment of the chinlon fancy yarn in the step (4) comprises two steps of soaping and drying; the soaping treatment temperature is 70-90 ℃, the soaping time is 10-30 min, and the soaping is used for removing unreacted dye on the surface of the fiber and ensuring the color fastness of the fiber; the drying mode is hot air drying, the drying temperature is 60-120 ℃, and the drying time is 1-3 h.
Compared with the prior art, the invention has the following beneficial effects:
(1) The fancy yarn of the nylon filament produced by the on-line dyeing process of the nylon fancy yarn has unique style, and cannot be realized by a conventional dyeing method.
(2) The on-line dyeing process for the nylon fancy yarn has the advantages of short dyeing process of the fancy yarn, quick coloring, simple production operation, short processing flow and high efficiency.
(3) The on-line dyeing process of the nylon fancy yarn can obviously reduce the using amount of dyes and auxiliaries, save energy and reduce emission, and the dyeing process is green and environment-friendly.
(4) The on-line dyeing process of the nylon fancy yarn can adapt to a small-batch and fast-paced production mode.
Drawings
Fig. 1 is a cloth cover style of the nylon fancy yarn fabric prepared in example 1;
fig. 2 is a cloth cover style of the dyed nylon yarn fabric prepared in comparative example 1.
Detailed Description
The present invention is further described below with reference to examples.
Example 1
The on-line dyeing process for the nylon fancy yarn, which is described in the embodiment 1, comprises the following steps:
(1) Preparing a dye solution: mixing 10% of ethanol (mass percent), 87% of water (mass percent), 1% of penetrant WA-M and 2% of acid dye RED RED B-NG (mass percent, johnsonxia), stirring until the dye is completely dissolved, and finally adjusting the pH value of the solution to 5.0 by using acetic acid;
(2) Dyeing nylon: adding the prepared dye liquor into a dye vat of a loose type winder with a dyeing device, then performing loose type winding on nylon 66 raw yarn with yarn denier of 40D, wherein the speed of the winder is 400m/min, the rotating speed of a rotating wheel is 15r/min, when the nylon yarn passes through the surface of the rotating wheel with the dye liquor on the surface at high speed, the dye liquor can be quickly adhered and permeate into the yarn, the dyed yarn is red fancy yarn, and the forming density of the nylon 66 fancy loose type cone yarn is 0.35g/cm 3 ；
(3) Steaming and fixing color: putting the loose nylon 66 fancy yarn into a high-temperature high-pressure steamer for steaming at 90 ℃ for 60min under 0.07MPa;
(4) And (3) post-treatment: and (3) soaping and drying the nylon 66 fancy yarn after yarn steaming, wherein the soaping temperature is 90 ℃, the soaping time is 30min, the drying temperature is 80 ℃, and the drying time is 2h.
Example 2
The on-line dyeing process for the nylon fancy yarn, which is described in the embodiment 2, comprises the following steps of:
(1) Preparing a dye solution: mixing 80 mass percent of ethanol, 19.0 mass percent of water, 0.5 mass percent of penetrant WA-M and 0.5 mass percent of reactive dye blue B3G to completely dissolve the dye, and finally adjusting the pH value of the solution to 3.0 by citric acid;
(2) Dyeing nylon: adding the prepared dye solution into a dye vat of a loose type winding machine with a dyeing device, then performing loose type winding on the nylon 6 yarn with yarn denier of 60D, wherein the speed of the winding machine is 600m/min, the rotating speed of a rotating wheel is 30r/min, and when the nylon yarn passes through the surface of the rotating wheel with the dye solution on the surface at high speed, the dye solution can be quickly adhered to the surface of the rotating wheel with the dye solution on the surfaceAnd the blue fancy yarn is permeated into the yarn after dyeing, the forming density of the nylon 6 fancy loose cone yarn is 0.38g/cm 3 ；
(3) Steaming and fixing color: putting the loose chinlon 6 fancy yarn into a high-temperature high-pressure steamer for steaming at 100 ℃ for 45min under 0.07MPa;
(4) And (3) post-treatment: and (3) soaping and drying the nylon 6 fancy yarn after yarn steaming, wherein the soaping temperature is 80 ℃, the soaping time is 10min, the drying temperature is 90 ℃, and the drying time is 1.5h.
Example 3
The on-line dyeing process for the nylon fancy yarn, which is described in the embodiment 3, comprises the following steps of:
(1) Preparing a dye solution: adding acid dye NAVY M-BRX 2% (mass percent) into a mixed solution of 80% pure water and 18% ethanol (mass percent) and stirring until the dye is completely dissolved, and finally adjusting the pH value of the solution to 5.0 by using a mixed solution of acetic acid and citric acid (volume ratio is 1;
(2) Dyeing nylon: adding the prepared dye liquor into a dye vat of a loose type winder with a dyeing device, then carrying out loose type winding on the nylon 56 yarn with the yarn denier of 100D, wherein the speed of the winder is 800m/min, the rotating speed of a rotating wheel is 50r/min, when the nylon yarn passes through the surface of the rotating wheel with the dye liquor on the surface at high speed, the dye liquor can be quickly adhered and permeate into the yarn, the dyed yarn is the purplish blue yarn, and the forming density of the nylon 56 loose type bobbin yarn is 0.45g/cm 3 ；
(3) Steaming and fixing color: putting the loose chinlon 56 fancy yarn into a high-temperature high-pressure steamer for steaming at 105 ℃ for 40min under 0.08MPa;
(4) And (3) post-treatment: and (3) soaping and drying the nylon fancy yarn after yarn steaming, wherein the soaping temperature is 75 ℃, the soaping time is 15min, the drying temperature is 100 ℃, and the drying time is 1h.
Example 4
The on-line dyeing process for the nylon fancy yarn, which is described in the embodiment 4, comprises the following steps:
(1) Preparing a dye solution: mixing 87.7 percent (mass percent) of pure water, 10 percent of ethanol, 0.3 percent of penetrating agent and 2 percent (mass percent) of reactive dye Yellow R, stirring until the dye is completely dissolved, and finally adjusting the pH value of the solution to 4.0 by using citric acid;
(2) Dyeing nylon: adding the prepared dye liquor into a dye vat of a loose type winder with a dyeing device, then performing loose type winding on nylon 66 yarn with the yarn denier of 80D, wherein the speed of the winder is 900m/min, the rotating speed of a rotating wheel is 80r/min, when the nylon yarn passes through the surface of the rotating wheel with the dye liquor on the surface at high speed, the dye liquor can be quickly adhered and permeate into the yarn, the dyed yarn is yellow fancy yarn, and the forming density of the nylon 66 fancy loose type cone yarn is 0.42g/cm 3 ；
(3) And (3) steaming and fixing color: putting the loose nylon 66 fancy yarn into a high-temperature high-pressure steamer for steaming at 110 ℃ for 30min under the pressure of 0.07MPa;
(4) And (3) post-treatment: and (3) soaping and drying the nylon fancy yarn after yarn steaming, wherein the soaping temperature is 70 ℃, the soaping time is 20min, the drying temperature is 110 ℃, and the drying time is 60min.
Comparative example 1
Dyeing the nylon cheese by using a conventional cheese dyeing method and using 0.5 percent (mass percentage) of reactive dye blue B3G, wherein the dyeing bath ratio is 1; soaping, fixing and drying for 2 times after dyeing is finished, wherein the soaping temperature is 80 ℃, and the time is 10min each time; the color fixing temperature is 55 ℃, the time is 20min, and the pressure is normal pressure; the drying temperature is 110 ℃ and the time is 2h.
The yarns obtained in examples 1 to 4 and comparative example 1 were subjected to a performance test and a comparison, and the various color fastnesses of the dyed yarns were measured and evaluated with a gray card.
Table 1 different color fastness tests of the effect yarns of examples 1 to 4 and the yarn of comparative example 1
| Detecting content | Example 1 | Example 2 | Example 3 | Example 4 | Comparative example 1 |
| Dry friction (GB/T3920-2008) | 4-5 stages | 4-5 stages | 4-5 stages | 4-5 stages | 4-5 stages |
| Wet friction (GB/T3920-2008) | 4 stage | 4-5 stages | 4 stage | Grade 4 | 4 stage |
| Soaping (ISO 105C06 | 4-5 stages | 4-5 stages | 4-5 stages | 4-5 stages | 4 stage |
The color fastness data analysis of the yarns dyed in the examples 1-4 and the comparative example 1 shows that all the fastnesses of the nylon fancy yarn dyed on line can reach more than 4 grades, and are equivalent to all the fastnesses of the conventional nylon dyed yarn in the comparative example 1; in addition, compared with the comparative example 1, the on-line dyeing process of the nylon fancy yarn can reduce about 80% of dyeing water consumption, about 65% of dyeing auxiliary agent consumption and about 25% of dyeing time; the fabric woven by using the nylon effect yarn of example 1 is shown in fig. 1, and the fabric woven by using the dyed yarn of comparative example 1 is shown in fig. 2.
The dyeing water consumption (calculated by dyeing 1kg of nylon yarn) is as follows: the water consumption for dyeing 1kg of nylon cheese in the embodiment 1 of the method can be as low as 0.5L, and the water consumption for washing after dyeing is 10L (washing for 1 time); the water consumption of the nylon yarn dyed by the method of the comparative example 1 is 10L, and the water consumption for soaping and color fixing after dyeing is 40L (3 times of water washing and 1 time of color fixing); compared with the conventional water dyeing of the comparative example 1, the method of the example 1 saves 39.5L of water, and compared with the conventional comparative example 1, the dyeing is reduced by 79 percent (39.5/50).
The dosage of the dyeing auxiliary agent (calculated by dyeing 1kg of nylon yarn) is as follows: when the method disclosed by the invention is adopted for dyeing the raw yarn in the embodiment 1, the pretreatment is not carried out on the raw yarn (the dosage of the pretreatment auxiliary agent is saved by 100%), the soaping is reduced by 1 time (the dosage of the soaping agent is reduced by 50%), and the color fixing treatment is not carried out (the color fixing agent is not used, the saving is 100%), so that the method disclosed by the invention can reduce the dosage of the dyeing auxiliary agent by at least 65% compared with the method for dyeing chinlon in the conventional comparative example 1.
Dyeing time (calculated by dyeing 1kg 40D chinlon yarn): the spooling dyeing time of the method embodiment 1 is 200min, the yarn steaming fixation time is 40min, the soaping is 30min, and the drying time is 120min; the winding time of dyeing in the conventional comparative example 1 is 200min, the dyeing time is 60min, the soaping fixation time is 120min, and the drying time is 120min; compared with the conventional dyeing method of comparative example 1, the dyeing time of the whole process of the method of example 1 can be saved by 110min, and the dyeing time is shortened by 22% (110 min/500 min).
Claims (9)
1. An online dyeing process of nylon fancy yarn is characterized in that: the method comprises the following steps:
(1) Preparation of dye liquor
Dissolving chinlon with acid or active dye in a mixed system of water and ethanol, and regulating the pH value of the solution to 3.0-5.5 with organic acid;
(2) Nylon dyeing
Adding the prepared dye solution into a dye vat of a loose bobbin winder with a dyeing device, then carrying out loose bobbin winding on the nylon yarn, enabling the nylon yarn to pass through the surface of a rotating wheel with the dye solution on the surface in the dyeing device at a high speed, and enabling the dye solution to be adhered and to permeate into the yarn to finally form the fancy nylon yarn;
(3) Fixation by steaming
Steaming and fixing the nylon fancy yarn under the conditions of high temperature and high pressure;
(4) Post-treatment;
the speed of the loose bobbin winder in the step (2) is 100-1000 m/min; the rotating speed of the rotating wheel is 5-80 r/min; the difference between the machine speed and the speed between the dyeing rotating wheels is 1 to 2 orders of magnitude.
2. The on-line dyeing process of the nylon fancy yarn as claimed in claim 1, wherein: in the step (1), a penetrating agent is also added, wherein the penetrating agent is a nonionic surfactant, and the dosage of the penetrating agent is 0.3-1% of the mass sum of water, ethanol, dye and the penetrating agent.
3. The on-line dyeing process of nylon fancy yarn as claimed in claim 1, which is characterized in that: in the step (1), water accounts for 10-90% of the mass of the mixed system, and ethanol accounts for 10-90% of the mass of the mixed solution system; the organic acid is one or a mixture of acetic acid and citric acid.
4. The on-line dyeing process of the nylon fancy yarn as claimed in claim 1, wherein: the reactive dye in the step (1) is a Huntsman bright series dye.
5. The on-line dyeing process of nylon fancy yarn as claimed in claim 1, which is characterized in that: the concentration of the acid dye or the reactive dye in the step (1) is 0.1-2%, and the concentration is relative to the total mass percentage of the dye solution.
6. The on-line dyeing process of nylon fancy yarn as claimed in claim 1, which is characterized in that: the nylon yarn in the step (2) is one of nylon 6, nylon 66 or nylon 56, and the denier number of the yarn is 40-100D.
7. The on-line dyeing process of the nylon fancy yarn as claimed in claim 1, wherein: the nylon yarn in the step (2) is one of nylon raw yarn or dyed nylon light-color yarn; the forming density of the nylon fancy yarn is controlled to be 0.35 to 0.45g/cm 3 。
8. The on-line dyeing process of the nylon fancy yarn as claimed in claim 1, wherein: and (3) carrying out yarn steaming and color fixing treatment on the nylon fancy yarn by adopting a high-temperature high-pressure yarn steaming pot, wherein the yarn steaming temperature is 90-110 ℃, the yarn steaming time is 30-60 min, and the pressure is 0.05-0.09 MPa.
9. The on-line dyeing process of nylon fancy yarn as claimed in claim 1, which is characterized in that: the post-treatment of the chinlon fancy yarn in the step (4) comprises two steps of soaping and drying; the treatment temperature after soaping is 70-90 ℃, and the soaping time is 10-30 min; the drying mode is hot air drying, the drying temperature is 60-120 ℃, and the drying time is 1-3 h.
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