CN112126247A - High-fixation-rate nano liquid disperse dye and preparation method and application thereof - Google Patents
High-fixation-rate nano liquid disperse dye and preparation method and application thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
- C09B67/008—Preparations of disperse dyes or solvent dyes
- C09B67/0082—Preparations of disperse dyes or solvent dyes in liquid form
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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
- D06P1/16—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 dispersed, e.g. acetate, dyestuffs
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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
- D06P1/44—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
- D06P1/46—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 natural macromolecular substances or derivatives thereof
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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
- D06P1/44—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
- D06P1/52—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 synthetic macromolecular substances
- D06P1/5207—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- D06P1/525—Polymers of unsaturated carboxylic acids or functional derivatives thereof
- D06P1/5257—(Meth)acrylic acid
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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
- D06P1/44—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
- D06P1/52—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 synthetic macromolecular substances
- D06P1/5264—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds
- D06P1/5285—Polyurethanes; Polyurea; Polyguanides
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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
- D06P1/44—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
- D06P1/60—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 polyethers
- D06P1/613—Polyethers without nitrogen
- D06P1/6131—Addition products of hydroxyl groups-containing compounds with oxiranes
- D06P1/6135—Addition products of hydroxyl groups-containing compounds with oxiranes from aromatic alcohols or from phenols, naphthols
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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
- D06P3/34—Material containing ester groups
- D06P3/52—Polyesters
- D06P3/54—Polyesters using dispersed dyestuffs
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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
- D06P5/02—After-treatment
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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
Abstract
The invention discloses a preparation method of a nano liquid disperse dye with high color fixing rate, which comprises the following steps: mixing a grinding aid with a certain amount of deionized water to fully swell the grinding aid, adding a disperse dye, propylene glycol, a basic dispersant and a wetting agent for pre-grinding, and adding the balance of deionized water; adding a hyperbranched dispersant into the ground system, continuously grinding, performing suction filtration by using a filter screen, adding an anti-flocculant and a preservative into the filtrate, and performing high-speed shearing emulsification to obtain a nano liquid disperse dye with a high color fixing rate; the liquid disperse dye is applied to the printing process of the polyester fiber fabric, can improve the fixation rate of the liquid disperse dye on the fabric, prevent the surface of the fabric from generating floating color, achieve the effect of no-wash printing, endow the printed fabric with better wearing fastness, ensure the soft hand feeling of the fabric and reduce the discharge amount of printing and dyeing wastewater.
Description
Technical Field
The invention belongs to the field of disperse dyes and preparation and application thereof, and particularly relates to a high-fixation-rate nano liquid disperse dye, a preparation method thereof and application thereof in printing, in particular to application of the high-fixation-rate nano liquid disperse dye in terylene no-clean printing.
Background
The terylene is a synthetic fiber variety with the largest world output and the most extensive application, and the terylene accounts for more than 60 percent of the world synthetic fiber output at present. Disperse dyes for dyeing terylene are the most important class in the dye industry. The conventional disperse dye needs complicated and long subsequent washing and reduction cleaning procedures in the polyester dyeing or printing process to ensure that the fabric can obtain better color fastness for wearing. However, a large amount of printing and dyeing wastewater containing a large amount of sodium hydrosulfite, caustic soda and incompletely colored dyes is generated in the subsequent cleaning process; the waste water is difficult to treat and is easy to cause environmental pollution. Therefore, the method for improving the color fixing rate of the dye and reducing the use amount of auxiliaries such as sodium hydrosulfite, liquid caustic soda and the like is the most direct way for reducing the discharge of printing and dyeing sewage.
Disperse dyes have been used to powdered dyes in the printing industry. When the dye liquor is actually mixed or prepared, the method not only hinders labor protection, but also often generates foam suspension dye particles on a dosing tool or a container and when the dye liquor is prepared, thereby causing defective printing and dyeing products during printing and dyeing. In addition, the dye is easy to be bonded and agglomerated at the bottom of the container, the wetting and redispersion performances are poor, and product defects are easy to cause to influence the product quality. In the processing formula of the liquid nano disperse dye, the dosage of the dispersing agent is greatly reduced (generally equivalent to one fifth or less of the dosage of powder or particles), so that the utilization rate of the liquid disperse dye can be improved in order to increase the dye content. The liquid nano-disperse dye can also have a plurality of advantages in application, for example, the dosage of the synthetic thickener can be reduced because the dye contains less electrolyte in printing, thereby being beneficial to the subsequent soaping and paste removal and the improvement of the hand feeling of the fabric. Because the liquid disperse dye is adopted, the migration phenomenon can be greatly reduced after the fabric is padded and dried in the middle. In addition, some water insoluble dyes, especially disperse dyes, are used for dyeing terylene or other synthetic fibers, and the fineness of the dye particles is an important factor. Generally, after the powdery dye is processed and dried, the grinded and dispersed fine particles in the powdery dye are often subjected to secondary agglomeration, so that the dispersibility is reduced, and the fineness of the general powdery product is coarser than that of the liquid product. Furthermore, the powder and liquid commodity dyes are converted into the same dye amount, and the terylene is dyed by a hot melting method, so that the liquid commodity obtains higher dyeing rate than the powder commodity, and the maximum difference can reach more than 30%. It can be seen that the liquid disperse dyes are superior to the powdered disperse dyes in order to accommodate the recent continuous printing and dyeing process.
The early liquid disperse dye has poor storage stability and is easy to precipitate, so that the upper layer and the lower layer are layered, the concentration of the lower layer dye is high, the lower layer dye is easy to aggregate into large particles, and the dyeing performance is influenced. This drawback of liquid disperse dyes is fatal, which seriously affects the popularization and use thereof, and thus the production and application of liquid disperse dyes have not been popularized. In recent years, with the appearance of various novel and efficient dispersants, the continuous updating of grinding processing means and the defects of powdery dyes, liquid disperse dyes become the key point of development, and represent the development direction of modern dye industry. At present, relatively few research reports about liquid disperse dyes at home and abroad are reported. The liquid state agent type is adopted in some old-fashioned dyes, so that the performance is improved, the application range is expanded, for example, the liquid state ice dyeing dyes are more convenient than the powder state used in the past, the rubbing fastness is improved, and simultaneously, the liquid state ice dyeing dyes are also suitable for new dyeing processes of cheese, jet, foam and the like. The sulfur liquid disperse dye has become a main formulation of the sulfur dye abroad, and is mainly used for dyeing medium and deep colors in countries such as Europe and America. Especially blue and black, is not only suitable for intermittent dyeing and circular jig dyeing in a dye vat, but also suitable for new modern dyeing processes, semi-continuous padding jig dyeing and continuous padding steaming dyeing. And the price is low, and compared with other dyes and preparation formulations, the dye is superior. In the prior art, Klaus et al ground inorganic oxide, silicate or their mixed powder with dye cake, dispersant, etc. to give a liquid disperse dye with 80% of the dye particles having an average particle size of less than 1 μm, and left at room temperature and 50 ℃ for several months, without delamination, showing good storage stability. The predecessor of Clariant, switzerland SANDOZ, has been on the market for liquid disperse dyes for a long time, and some varieties have been available with a strength of up to 300%. Other foreign companies also have liquid disperse dyes, but the total number of varieties is relatively small, the price is relatively expensive, and the requirements of most printing and dyeing enterprises cannot be met, so that the research on the liquid disperse dyes is necessary to be further carried out. The dye industry in China emphasizes the development of the classical production process for a long time, but does not pay attention to the commercialization of dyes, the development of formulations and dye auxiliaries, and the investment cost of research and development is far lower than that of the original dye. This makes the competitive power of the dye products in China on high added value obviously lagged behind foreign companies.
The production of the liquid disperse dye also improves the operation condition and the sanitary environment, and solves the problem of dust flying in the dye processing post-treatment. The production process of the liquid disperse dye simplifies the working procedures and saves the investment. According to the estimated 150-300 ton dye drying plant, the investment is probably 25-50 ten thousand yuan. More importantly, the energy is saved, for example, if 2 ten thousand tons of liquid disperse dye are produced per year, about 4 ten thousand tons of standard coal can be saved, and millions of yuan is also needed to be converted into RMB. Liquid disperse dye processing generally saves more additive than powder dye processing. Only by reducing the dosage of the auxiliary agent, the cost can be saved by about 5 to 10 percent. If 1 ten thousand tons of disperse dye is produced annually, the improvement by 10 percent can save 1000 tons of dye, which is equivalent to tens of millions of RMB. From the aspect of packaging cost, compared with the powdery dye, the liquid disperse dye saves the packaging instead of increasing the packaging, and the higher the dye concentration is, the more the packaging is saved. The benefits of the liquid disperse dyes are far from the benefits described above, and as the varieties of the liquid disperse dyes increase, the application range is expanded, so that more benefits are certainly displayed, and the key technical problem of neck clamping in the ecological cleaning printing and dyeing industry is broken through.
Therefore, the development of a nano liquid disperse dye which has high fixation rate and good storage stability and is beneficial to reducing the discharge amount of printing and dyeing wastewater is needed.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide a high-color-fixation-rate nano liquid disperse dye, a preparation method thereof and application thereof in printing, so that the color fixation rate of the liquid disperse dye in printing is improved, the generation of flooding on the surface of fabric is reduced, the effect of no-wash printing is achieved, better wearing fastness of the printed fabric is also given, the fabric is ensured to have soft hand feeling, and the discharge amount of printing and dyeing wastewater is reduced.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
a preparation method of a nano liquid disperse dye with high fixation rate comprises the following steps:
(1) mixing 0.1-3% of grinding aid with a certain amount of deionized water to fully swell the grinding aid, adding 10-40% of disperse dye, 5-10% of propylene glycol, 0.1-10% of basic dispersant and 0.1-5% of wetting agent for pre-grinding, and adding the balance of deionized water;
(2) adding 1-2% of hyperbranched dispersant into the system ground in the step (1) for continuous grinding, performing suction filtration by using a filter screen, adding an anti-flocculant and a preservative into the filtrate, and performing high-speed shearing emulsification to obtain a nano liquid disperse dye with a high color fixing rate;
wherein, the percentages of the steps (1) and (2) are mass percentages, and the total mass of the deionized water and the disperse dye is taken as a reference.
Preferably, the grinding aid in step (1) is at least one of silica, alumina and bentonite.
Preferably, the disperse dye in step (1) is at least one of disperse yellow 114, disperse orange 288, disperse red 153, disperse red 167, disperse red 343, disperse blue 79, disperse blue 60 and disperse blue 183: 1.
Preferably, the basic dispersant is at least one of lignosulfonate, alkyl naphthalene sulfonate formaldehyde condensate, alkyl naphthalene sulfonate and sodium cellulose sulfonate.
Preferably, the wetting agent is at least one of alkylphenol ethoxylate, fatty alcohol ethoxylate and fatty acid polyol ester ethoxylate.
Preferably, the hyperbranched dispersant is one of polyurethane type hyperbranched dispersant and polyester type hyperbranched dispersant, the molecular structure of the hyperbranched dispersant is shown as a molecular structural formula (I) or a molecular structural formula (II),
r in the molecular structural formula (I) and the molecular structural formula (II) is-SO3Na、-CH3-ONa.
Further, in the step (2), the added deflocculant is sodium polyacrylate; the preservative is at least one of 5-chloro-2-methyl-4-isothiazolin-3-one, 1, 2-benzisothiazol-3-one, methylisothiazolinone, 2-bromo-2-nitro-1, 3-propanediol and polyhexamethylene guanidine; and the addition amount of the deflocculant is 1-8% and the addition amount of the preservative is 0.1-1.0% based on the total mass of the deionized water and the disperse dye.
Further, the grinding process parameters in the step (1) are as follows: the rotation speed is 1000-2000rpm, the ball material ratio is 2:1, and the grinding time is 2-3 h.
Furthermore, the process parameters for the continuous grinding in step (2) are as follows: the rotating speed is 1500-3000r/min, the ball-material ratio is 2:1, and the grinding time is 1-2 h.
The invention also provides the nano liquid disperse dye with high color fixing rate prepared by the preparation method.
The invention further provides an application of the high-fixation-ratio nano liquid disperse dye prepared by the preparation method in printing, and specifically, the printing process comprises the following steps: preparing 0.5-2.5% of high-fixation-rate nano liquid disperse dye, 2-4% of thickening agent and the balance of water into printing paste, drying the fabric for 1-2min at 140 ℃ after the printing paste is used for printing the fabric, and then steaming at 180 ℃ of 170 ℃ for 8-10min or at 210 ℃ of 195 ℃ for hot-melt fixation for 45-90; the percentage of each component in the printing paste is mass percentage, and the total mass of the nano liquid disperse dye with high fixation rate, the thickening agent and the water is taken as a reference.
Compared with the prior art, the invention has the following advantages and effects:
(1) the liquid disperse dye prepared by the method has a stable disperse system, and can be stably stored for 6 months at normal temperature and still keep the performance of the liquid disperse dye unchanged; and when the liquid disperse dye is used for preparing printing paste, the liquid disperse dye can be uniformly and stably dispersed in water.
(2) According to the liquid disperse dye prepared by the method, the hyperbranched high-molecular polymer is used as a dispersing agent, and when the high-temperature steaming color fixation is performed, the hyperbranched high-molecular polymer with multiple active functional groups can coat the dye which does not completely enter fabric fibers to form microcapsules and attach to the surface of the fabric to form a film, so that the color fixation rate is improved to more than 95%, the generation of flooding on the surface of the fabric is reduced, and the color fastness of the fabric is improved;
(3) the liquid disperse dye is used for printing the fabric, so that the soft hand feeling of the fabric and the color fastness of the fabric can be guaranteed, the use of the thickening agent can be greatly reduced, the printed fabric does not need to be reduced and cleaned, the discharge amount of wastewater containing pollutants can be greatly reduced, the sewage treatment burden of enterprises is reduced, and the liquid disperse dye has great significance for environmental protection.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
S11: preparation of nano liquid disperse dye with high color fixing rate
Adding 3% of grinding aid bentonite into deionized water, and uniformly mixing to fully swell. Then adding 30% of disperse red 167 dye filter cake, 6% of lignosulfonate and 5% of alkylphenol polyoxyethylene, grinding in a ball mill with the ball-material ratio of 2:1 at the rotation speed of 1500rpm for 3h by adopting zirconium beads with the diameter of 1.4mm, adding the rest of deionized water to form a pre-ground dye system, adding 2% of polyurethane type hyperbranched dispersant (shown in chemical structural formula (Ia)) into the system, continuously grinding in the ball mill with the rotation speed of 2000rpm for 2h, performing suction filtration through a filter screen with the level of 1μm to obtain filtrate, adding 4% of sodium polyacrylate and 0.5% of methylisothiazolinone into the filtrate, and performing high-speed shearing emulsification to obtain the high-fixation rate nano liquid disperse dye. Wherein, the percentage of all the components is mass percentage, and is based on the total mass of the disperse dye and all the deionized water.
S12: water-washing-free printing process
Mixing and stirring uniformly 2% of high-fixation-rate nano liquid disperse dye, 3.0% of thickening agent PA and the balance of water to prepare printing paste; the printing paste comprises a printing paste system, a printing paste and a pigment, wherein the percentage of each component in the printing paste is mass percent and is based on the total mass of the printing paste system; the printing paste is used for printing the polyester fabric by adopting the following process: printing → drying (110 ℃, 2min) → high temperature steaming (175 ℃, 8 min).
Example 2
S21: preparation of nano liquid disperse dye with high color fixing rate
Adding 3% of grinding aid bentonite into deionized water, and uniformly mixing to fully swell. Then adding 25% of disperse blue 183:1 dye filter cake, 4% of lignosulfonate and 5% of alkylphenol polyoxyethylene, grinding for 3 hours in a ball mill with the ball-material ratio of 2:1 at the rotation speed of 1500rpm and the grinding ball adopting zirconium beads with the diameter of 1.4mm, then adding the rest of deionized water to form a pre-ground dye system, adding 2% of polyurethane type hyperbranched dispersant (shown in chemical structural formula (Ib)) into the system, continuing grinding for 2 hours in the ball mill with the rotation speed of 2000rpm, performing suction filtration through a 1 mu m-grade filter screen to obtain a filtrate, adding 6% of sodium polyacrylate and 0.5% of methylisothiazolinone into the filtrate, and performing high-speed shearing emulsification to obtain the high-fixation rate nano liquid disperse dye. Wherein, the percentage of all the components is mass percentage, and is based on the total mass of the disperse dye and all the deionized water.
S22: water-washing-free printing process
Mixing and stirring uniformly 2.5% of high-fixation-rate nano liquid disperse dye, 3.0% of thickening agent PA and the balance of water to prepare printing paste; the printing paste comprises a printing paste system, a printing paste and a pigment, wherein the percentage of each component in the printing paste is mass percent and is based on the total mass of the printing paste system; the printing paste is used for printing the polyester fabric by adopting the following process: printing → drying (120 ℃, 1.5min) → high temperature steaming (175 ℃, 10 min).
Example 3
S31: preparation of nano liquid disperse dye with high color fixing rate
Adding 3% of grinding aid bentonite into deionized water, and uniformly mixing to fully swell. Then adding 20% of disperse yellow 114 dye filter cake, 4% of lignosulfonate and 5% of alkylphenol polyoxyethylene, grinding for 3 hours in a ball mill with the ball-material ratio of 2:1 at the rotation speed of 1500rpm and the grinding ball adopting zirconium beads with the diameter of 1.4mm, then adding the rest of deionized water to form a pre-ground dye system, adding 1.5% of polyurethane type hyperbranched dispersant (shown in chemical structural formula (IIa)) into the system, continuing grinding for 2 hours in the ball mill with the rotation speed of 2000rpm, performing suction filtration through a 1 mu m-grade filter screen to obtain a filtrate, adding 3% of sodium polyacrylate and 0.6% of 1, 2-benzisothiazole-3-one into the filtrate, and performing high-speed shearing emulsification to obtain the high-fixation rate nano liquid disperse dye. Wherein, the percentage of all the components is mass percentage, and is based on the total mass of the disperse dye and all the deionized water.
S32: water-washing-free printing process
Mixing and stirring uniformly 2.5% of high-fixation-rate nano liquid disperse dye, 3.0% of thickening agent PA and the balance of water to prepare printing paste; the printing paste comprises a printing paste system, a printing paste and a pigment, wherein the percentage of each component in the printing paste is mass percent and is based on the total mass of the printing paste system; the printing paste is used for printing the polyester fabric by adopting the following process: printing → drying (140 ℃, 1min) → high temperature steaming (175 ℃, 10 min).
And (3) carrying out color fastness performance test on the fabric printed in the embodiment 1-3. Wherein the dry and wet rubbing color fastness of the fabric is measured according to the method specified in GB/T3920-; the light fastness was determined according to the method specified in ISO 105-B0240 h; the fastness to perspiration was determined according to the method specified in GB/T3922-2013. The test results are shown in table 1.
TABLE 1 color fastness Properties test results
As can be seen from Table 1, the fabric obtained by printing with the nano liquid disperse dye of the invention has water fastness, rubbing fastness, light fastness and perspiration fastness of more than 4 grades, which indicates that the nano liquid disperse dye has high fixation rate and can meet the high requirements of printing and dyeing applications.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents made by the contents of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (11)
1. A preparation method of a nano liquid disperse dye with high fixation rate is characterized by comprising the following steps:
(1) mixing 0.1-3% of grinding aid with a certain amount of deionized water to fully swell the grinding aid, adding 10-40% of disperse dye, 5-10% of propylene glycol, 0.1-10% of basic dispersant and 0.1-5% of wetting agent for pre-grinding, and adding the balance of deionized water;
(2) adding 1-2% of hyperbranched dispersant into the system ground in the step (1) for continuous grinding, performing suction filtration by using a filter screen, adding an anti-flocculant and a preservative into the filtrate, and performing high-speed shearing emulsification to obtain a nano liquid disperse dye with a high color fixing rate;
wherein, the percentages of the steps (1) and (2) are mass percentages, and the total mass of the deionized water and the disperse dye is taken as a reference.
2. The method for preparing nano liquid disperse dye with high fixation rate according to claim 1, wherein the grinding aid in the step (1) is at least one of silica, alumina and bentonite.
3. The method for preparing nano liquid disperse dye with high fixation rate according to claim 1, wherein the disperse dye in the step (1) is at least one of disperse yellow 114, disperse orange 288, disperse red 153, disperse red 167, disperse red 343, disperse blue 79, disperse blue 60 and disperse blue 183: 1.
4. The method for preparing nano liquid disperse dye with high fixation rate according to claim 1, wherein the basic dispersant is at least one of lignosulfonate, alkyl naphthalene sulfonate formaldehyde condensate, alkyl naphthalene sulfonate and sodium cellulose sulfonate.
5. The method for preparing nano liquid disperse dye with high color fixing rate according to claim 1, wherein the wetting agent is at least one of alkylphenol ethoxylate, fatty alcohol polyoxyethylene ether, and fatty acid polyol ester polyoxyethylene ether.
6. The method for preparing nano liquid disperse dye with high color fixing rate according to claim 1, wherein the hyperbranched dispersant is one of polyurethane type hyperbranched dispersant and polyester type hyperbranched dispersant, the molecular structure of the hyperbranched dispersant is shown as molecular structural formula (I) or molecular structural formula (II),
r in the molecular structural formula (I) and the molecular structural formula (II) is-SO3Na、-CH3-ONa.
7. The method for preparing nano liquid disperse dye with high fixation rate according to claim 1, wherein in the step (2), the deflocculant is sodium polyacrylate; the preservative is at least one of 5-chloro-2-methyl-4-isothiazolin-3-one, 1, 2-benzisothiazol-3-one, methylisothiazolinone, 2-bromo-2-nitro-1, 3-propanediol and polyhexamethylene guanidine; and the addition amount of the deflocculant is 1-8% and the addition amount of the preservative is 0.1-1.0% based on the total mass of the deionized water and the disperse dye.
8. The preparation method of nano liquid disperse dye with high fixation rate according to claim 1, wherein the grinding parameters in the step (1) are as follows: the rotation speed is 1000-2000rpm, the ball material ratio is 2:1, and the grinding time is 2-3 h.
9. The preparation method of nano liquid disperse dye with high fixation rate according to claim 1, wherein the continuous grinding in the step (2) has the following process parameters: the rotating speed is 1500-3000r/min, the ball-material ratio is 2:1, and the grinding time is 1-2 h.
10. A high fixation rate nano liquid disperse dye prepared by the preparation method of any one of claims 1 to 9.
11. The application of the nano liquid disperse dye with high fixation rate prepared by the preparation method of any one of claims 1 to 9 in printing is characterized in that the printing process comprises the following steps: preparing 0.5-2.5% of high-fixation-rate nano liquid disperse dye, 2-4% of thickening agent and the balance of water into printing paste, drying the fabric for 1-2min at 140 ℃ after the printing paste is used for printing the fabric, and then steaming at 180 ℃ of 170 ℃ for 8-10min or at 210 ℃ of 195 ℃ for hot-melt fixation for 45-90; the percentage of each component in the printing paste is mass percentage, and the total mass of the nano liquid disperse dye with high fixation rate, the thickening agent and the water is taken as a reference.
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| CN113583477A (en) * | 2021-09-03 | 2021-11-02 | 江苏亚邦染料股份有限公司 | Nano-scale red liquid disperse dye and preparation method thereof |
| CN113831759A (en) * | 2021-09-16 | 2021-12-24 | 浙江理工大学 | Liquid disperse dye for high-temperature dip dyeing and preparation method thereof |
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| CN114773878A (en) * | 2022-04-29 | 2022-07-22 | 浙江博澳新材料股份有限公司 | High-dispersity nano disperse dye and preparation method thereof |
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| CN114836056A (en) * | 2022-05-18 | 2022-08-02 | 江苏吉华化工有限公司 | Liquid nano disperse dye and preparation method thereof |
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