CN115012235B - Efficient salt-resistant low-foam dispersion leveling agent and application thereof - Google Patents
Efficient salt-resistant low-foam dispersion leveling agent and application thereof Download PDFInfo
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Abstract
The application relates to the field of textile printing and dyeing auxiliaries, and particularly discloses a high-efficiency salt-resistant low-foam dispersing leveling agent and application thereof. The efficient salt-resistant low-foam dispersing leveling agent comprises the following components in parts by weight: 15-25 parts of fatty alcohol-polyoxyethylene ether ester compound, 2-5 parts of composite high-efficiency dispersing agent, 5-10 parts of anionic emulsifier, 2-4 parts of liquid alkali, 0.04-0.1 part of defoaming agent, and water for supplementing to 100 parts. The efficient salt-resistant low-foam dispersing leveling agent can be used for dyeing polyester-containing fabrics, has the advantages of salt resistance, environmental protection, low foam and high dispersibility, and is widely applicable to dyeing of various polyester fabrics and polyester blended fabrics.
Description
Technical Field
The application relates to the technical field of textile printing and dyeing auxiliaries, in particular to a high-efficiency salt-resistant low-foam dispersing leveling agent and application thereof.
Background
The terylene fabric is one of textile fabrics widely used at present, has strong elastic recovery capacity, is very wear-resistant, has high drying speed after washing, hardly reduces wet strength, does not deform, has very stable chemical performance, not only has good heat resistance and light resistance, but also has good corrosion resistance, has small damage degree to the terylene fabric by acid and alkali, and is not afraid of mould and worm damage.
Because the polyester fabric belongs to hydrophobic fibers, the structure of the polyester fabric is extremely compact, and the polyester fabric is difficult to color at normal temperature, and three methods are mainly used for dyeing: the hot melt method, the carrier method and the high temperature and high pressure method, among which the most commonly used is the high temperature and high pressure dyeing method. In the process of dyeing polyester fibers at high temperature, due to the characteristics of the fibers and the influence of the dispersibility of disperse dyes, uneven dyeing phenomena such as color spots and color spots are often generated, the dyeing quality is influenced, and in order to overcome the problem, the most convenient method is to add a leveling agent.
At present, the textile printing and dyeing industry is an industrial wastewater discharge consumer, which accounts for about 35% of the whole industrial wastewater discharge, and the discharged sewage can be reused for dyeing and finishing processing after being treated by a series of physical, chemical and biological methods in a dye factory. Although the reuse water is subjected to a series of treatments, the problems of chromaticity, turbidity, metal ions and the like still exist, wherein a large amount of calcium/magnesium ions, neutral electrolyte and cationic substances exist in the reuse water, so that the dispersion stability of the disperse dye is reduced, the disperse dye cannot be desorbed from dyed cloth and can not be used for dyeing white cloth again, the migration property is poor, and the traditional AB material dyeing leveling agent has good salt resistance and good defoaming property, but has a common effect when being used for special fabrics (superfine denier fibers); the dodecyl benzene sulfonate compound high-temperature leveling agent has good permeability and retarding property, but has large foam amount in the application process and is easy to block a cylinder; the salt tolerance of related series of nonionic products such as peregal and the like cannot meet the requirement.
Aiming at the related technologies, the inventor finds that the common terylene levelling agent can not solve the dyeing problem caused by reuse water, generates more foams when in use, is easy to block a cylinder, has poor salt resistance and poor dye transfer rate.
Disclosure of Invention
In order to improve the salt resistance and the defoaming effect of the leveling agent and improve the dispersibility and the dye transfer rate of the dye, the application provides the high-efficiency salt-resistant low-foam dispersing leveling agent and the application thereof.
In a first aspect, the application provides a high-efficiency salt-tolerant low-foam dispersing leveling agent, which adopts the following technical scheme: a high-efficiency salt-resistant low-foam dispersing leveling agent comprises the following components in parts by weight: 15-25 parts of fatty alcohol-polyoxyethylene ether ester compound, 2-5 parts of composite high-efficiency dispersing agent, 5-10 parts of anionic emulsifier, 2-4 parts of liquid alkali, 0.04-0.1 part of defoaming agent and the balance of water to 100 parts.
By adopting the technical scheme, the leveling agent prepared according to the formula has more outstanding salt resistance and dispersity than common leveling agents sold in markets, and on the basis, indexes such as slow-dyeing property, migration property, decolorization property and defoaming property are very outstanding, so that the one-time success rate of printing and dyeing enterprises can be greatly improved, the cost is greatly reduced, and the problem that one formula is suitable for working conditions of multiple devices is solved.
Optionally, the fatty alcohol-polyoxyethylene ether ester compound is a diester compound of fatty alcohol-polyoxyethylene ether and cyclohexane-1, 2-dicarboxylic acid.
By adopting the technical scheme, the diester compound formed by esterifying the fatty alcohol-polyoxyethylene ether and the cyclohexane-1, 2-dicarboxylic acid is cyclohexane-1, 2-dicarboxylic acid di-fatty alcohol polyoxyethylene ester, the structural formula of the diester compound is shown as a formula I, the diester compound belongs to an aliphatic dicarboxylic acid plasticizer, and the diester compound is environment-friendly and non-toxic, has a good level dyeing effect, and simultaneously contains polyoxyethylene ether linkage, so that the surfactant with the plasticizing effect belongs to a hydrophilic system, can be effectively dissolved in water, has a certain degree of salt resistance, can not cause the reduction of the level dyeing property due to the influence of calcium/magnesium ions, neutral electrolytes and cationic substances in recycled water, does not need a large amount of emulsifying agents for emulsification, has a wide application range and is good in working condition applicability; although the monoester compound of fatty alcohol polyoxyethylene ether and cyclohexane-1, 2-dicarboxylic acid has certain effect, the monoester compound is an anionic surfactant, although the monoester compound has salt resistance, the affinity with fibers is reduced, and on the contrary, the nonionic effect and the migration performance are lost, so that the diester compound meets the current requirements.
Optionally, the fatty alcohol-polyoxyethylene ether has a carbon chain length of C18-24, and is an adduct of a fatty alcohol having a carbon chain length of C16-18 and ethylene oxide.
By adopting the technical scheme, the fatty alcohol-polyoxyethylene ether is prepared from the fatty alcohol with the carbon chain length of 16-18 and the ethylene oxide, so that the plasticizing and fiber-philic effects are reflected, and the salt-resistant and dispersing effects are improved.
Optionally, the composite high-efficiency dispersant comprises a basf dispersant CP72L and a basf dispersant CP9 in a mass ratio of (0.3-0.5): 1.
By adopting the technical scheme, the basf dispersant CP72L is a comb-shaped high molecular compound, is applied to the dispersed macromolecular dye industry, has excellent dispersing performance, the basf dispersant CP9 is a copolymer sodium salt of acrylic acid and maleic acid, can effectively chelate heavy metal ions in water, and plays a role in softening water quality, and the combination of the basf dispersant CP72L and the basf dispersant CP9 is a combination with excellent compatibility discovered through basf research, can play a role in synergizing dispersed dyes, and can be used as a special leveling agent.
Optionally, the anionic emulsifier comprises pentadecyl alkylbenzene sulfonic acid and pentadecyl alkylbenzene sulfonic acid with the mass ratio of 1 (1.5-2).
By adopting the technical scheme, the anionic emulsifier is produced by Changzhou alkali-resistant, is obtained by processing environment-friendly plant-based extract pentadecylphenol, has more environment-friendly characteristic than the conventional dodecylbenzene sulfonic acid, has better emulsifying dispersibility than secondary alkyl sodium sulfonate and AES, and can further improve the alkali resistance of the system after being added so as to meet the requirement of salt-resistant dyeing of blended fabrics.
Optionally, the defoamer is a polyether defoamer.
By adopting the technical scheme, the polyether type defoaming agent does not contain organic silicon components, the phenomenon of demulsification and precipitation of the organic silicon type defoaming agent under various working conditions can be effectively avoided, and defects on the surface of the dyed cloth after final condensation are prevented.
Optionally, the leveling agent also contains an antibacterial agent, and the dosage of the antibacterial agent is 0.5-1 part.
The commercial leveling agent does not have the antibacterial effect of the polyester fabric, various auxiliaries and finishing agents can provide nutrient substances for microorganisms in the dyeing and finishing process of the polyester fabric, and when the temperature and the humidity are suitable for growth, the microorganisms grow and propagate on the textile in a large amount, so that the health of people is threatened.
Optionally, the antibacterial agent comprises the following components in parts by weight: 0.3-0.5 part of low molecular weight chitosan, 0.5-1.25 parts of PMMA-loaded nano silver and 1-1.5 parts of acetic acid solution.
According to the technical scheme, the low-molecular-weight chitosan has adsorption capacity and can form a film with a stable structure on a polyester plant, so that the hydrophilicity of the polyester fabric is improved, a large number of reactive groups are given to the polyester plant, the PMMA-loaded nano silver is a compound with PMMA as a shell and nano silver particles as a core, and hydrogen bonds can be formed between hydroxyl, amino and-NH-in the PMMA and the low-molecular-weight chitosan, so that the PMMA-loaded nano silver is grafted on the polyester fabric through the low-molecular-weight chitosan, and the antibacterial washfastness and the antibacterial durability of the antibacterial agent are improved.
Preferably, the preparation method of PMMA-supported nano silver comprises the following steps: mixing an MMA monomer, an AIBN initiator and nano-silver particles, carrying out ultrasonic dispersion for 5-10min, heating to 90-95 ℃, carrying out heat preservation and ultrasonic dispersion for 3-3.5h, carrying out vacuum drying, crushing, and carrying out ball milling until the particle size is 20-200 mu m, wherein the mass ratio of the MMA monomer to the ABN initiator to the nano-silver particles is (1).
By adopting the technical scheme, the PMMA-carried nano silver is prepared by ultrasonic polymerization, the thermal stability of PMMA is high, the PMMA-carried nano silver does not lose the antibacterial effect due to high temperature when high-temperature and high-pressure dyeing is carried out, and PMMA presents better hydrophobicity, so that the polyester fabric treated by the antibacterial agent has better soaping resistance, good antibacterial fastness and lasting antibacterial property.
Preferably, the preparation method of the antibacterial agent comprises the following steps: adding glacial acetic acid aqueous solution into chitosan, ultrasonically oscillating at normal temperature, adding hydrogen peroxide, stirring for 2h, adjusting pH to 8, washing, drying to obtain low molecular weight chitosan, and mixing low molecular weight chitosan, PMMA-loaded nano silver and 50% acetic acid aqueous solution uniformly to obtain the antibacterial agent.
By adopting the technical scheme, the chitosan is a natural polymer material with various good performances, the hydrogen peroxide is a binary acid with strong oxidizing property, the hydrogen peroxide is used as an oxidant to degrade the chitosan, so that C-O-C is broken, the known low-molecular-weight chitosan can be obtained, the original structure of the chitosan can not be influenced, the low-molecular-weight chitosan still has alcoholic hydroxyl groups and can not be oxidized into carboxyl groups, the low-molecular-weight chitosan can enable the polyester fabric to have reactive groups, and therefore, the polyester fabric can be grafted with PMMA (polymethyl methacrylate) loaded with nano silver, and the antibacterial durability of the polyester fabric is improved.
In a second aspect, the application provides an application of a high-efficiency salt-resistant low-foam dispersion leveling agent in dyeing of polyester-containing fabrics.
In summary, the present application has the following beneficial effects:
1. because the leveling agent is prepared from the components such as the fatty alcohol-polyoxyethylene ether ester compound, the composite efficient dispersing agent and the like, the dye has excellent dispersibility, the dye in a dye bath cannot be coagulated, the dye has excellent dye transfer performance, low foam and strong electrolyte resistance, is suitable for different working conditions, and meets the automatic mechanization.
2. In the application, a compound of the Passion dispersing agent CP72L and the Passion dispersing agent CP9 is preferably adopted as the high-efficiency composite dispersing agent, the Passion dispersing agent CP72L has better dispersing performance, the Passion dispersing agent CP9 has the functions of chelating heavy metal ions and softening water quality, and the two are matched for use, so that the effects of plasticizing and dispersing dyes and improving the level dyeing effect can be achieved.
3. The antibacterial agent is preferably prepared from the components such as low-molecular-weight chitosan and PMMA-supported nano silver, the low-molecular-weight chitosan can endow a fabric with a reaction group, so that PMMA-supported nano silver is grafted on the fabric, the antibacterial durability of the fabric is improved, and the PMMA-supported nano silver can endow the fabric with hydrophobicity, so that the fabric still has good antibacterial property after being washed for multiple times.
Detailed Description
Preparation examples 1 to 3 of PMMA carrying nano silver
Preparation example 1: mixing an MMA monomer, an AIBN initiator and nano-silver particles, carrying out ultrasonic dispersion for 5min, heating to 90 ℃, carrying out heat preservation and ultrasonic dispersion for 3.5h, carrying out vacuum drying for 4h at 90 ℃, carrying out ball milling after crushing until the particle size is 20 mu m, wherein the mass ratio of the MMA monomer to the ABN initiator to the nano-silver particles is 1.02: cleaning and juicing aloe leaves, adding deionized water with the mass of 3 times of the aloe leaves, heating to boil, cooling, filtering to obtain aloe water extract, mixing the aloe water extract and silver ammonia solution, fully reacting for 24 hours at normal temperature, filtering, and drying in vacuum to obtain nano silver particles, wherein the mass ratio of the aloe water extract to the silver ammonia solution is 3.7.
Preparation example 2: mixing an MMA monomer, an AIBN initiator and nano-silver particles, ultrasonically dispersing for 10min, heating to 95 ℃, preserving heat, ultrasonically dispersing for 3h, vacuum drying for 4h at 90 ℃, crushing, and ball-milling until the particle size is 200 mu m, wherein the mass ratio of the MMA monomer to the ABN initiator to the nano-silver particles is 1.03: cleaning and juicing aloe leaves, adding deionized water with the mass of 3 times of the aloe leaves, heating to boil, cooling, filtering to obtain aloe water extract, mixing the aloe water extract and silver ammonia solution, fully reacting for 24 hours at normal temperature, filtering, and drying in vacuum to obtain nano silver particles, wherein the mass ratio of the aloe water extract to the silver ammonia solution is 3.7.
Preparation example 3: the difference from preparation example 2 is that the nano silver particles are commercially available.
Examples
In the examples, the sources of the raw materials are as follows: the polyether type defoaming agent is selected from Wingda Deladmitai, the model is TEGO anti foam d-2315, and the organic silicon defoaming agent is GB-123; the anionic emulsifier is selected from the group consisting of the well-known antibiotic-resistant biomaterials science and technology ltd, under the trade name NSY.
Example 1: the raw material usage of the high-efficiency salt-tolerant low-foam dispersing leveling agent is shown in table 1, wherein the mass concentration of liquid alkali is 32%, the defoaming agent is a polyether-type defoaming agent, the anionic emulsifier comprises p-pentadecyl alkylbenzene sulfonic acid and m-pentadecyl alkylbenzene sulfonic acid in a mass ratio of 1.
Table 1 raw material amounts of efficient salt-tolerant low-foaming dispersing leveling agent in examples 1-3
Example 4: the high-efficiency salt-resistant low-foam dispersing leveling agent is different from the example 1 in that the composite high-efficiency dispersing agent comprises a Pasteur dispersing agent CP72L and a Pasteur dispersing agent CP9 in a mass ratio of 0.3.
Example 5: the high-efficiency salt-resistant low-foam dispersing leveling agent is different from the embodiment 1 in that the anionic emulsifier comprises pentadecyl alkylbenzene sulfonic acid and metapentadecyl alkylbenzene sulfonic acid with the mass ratio of 1.
Example 6: the difference between the efficient salt-resistant low-foam dispersing leveling agent and the embodiment 1 is that the same amount of a BASF dispersant CP72L is used for replacing a BASF dispersant CP9 in the composite efficient dispersant.
Example 7: the difference between the efficient salt-resistant low-foam dispersing leveling agent and the embodiment 1 is that the same amount of BASF dispersant CP9 is used to replace CP27L in the composite efficient dispersant.
Example 8: an efficient salt-resistant low-foam dispersing leveling agent is different from the agent in example 1 in that an equal amount of organic silicon defoaming agent is used to replace polyether defoaming agent.
Example 9: the difference between the efficient salt-tolerant low-foam dispersing leveling agent and the embodiment 1 is that the fatty alcohol-polyoxyethylene ether ester compound is a monoester compound formed by esterifying fatty alcohol-polyoxyethylene ether and cyclohexane-1, 2-dicarboxylic acid, and the structural formula of the monoester compound is shown as a formula II.
Example 10: the difference between the efficient salt-resistant low-foam dispersion leveling agent and the embodiment 1 is that an antibacterial agent is also added into the raw materials, the dosage of the antibacterial agent is 0.5kg, the dosage of water is reduced by 0.5kg, and the antibacterial agent is a commercially available MS-K012 quaternary ammonium salt antibacterial agent.
Example 11: the difference between the efficient salt-resistant low-foam dispersing leveling agent and the embodiment 1 is that an antibacterial agent is added into the raw materials, the dosage of the antibacterial agent is 1kg, the dosage of water is reduced by 1kg, and the antibacterial agent is a commercially available MS-K012 quaternary ammonium salt antibacterial agent.
Example 12: the difference between the efficient salt-resistant low-foam dispersing leveling agent and the embodiment 1 is that an antibacterial agent is added into the raw materials, the dosage of the antibacterial agent is 1kg, the dosage of water is reduced by 1kg, and the preparation method of the antibacterial agent comprises the following steps: adding 0.2kg of chitosan into 1.5% glacial acetic acid aqueous solution, carrying out ultrasonic oscillation at normal temperature, adding 0.1kg of hydrogen peroxide, stirring for 2h at 60 ℃, adjusting the pH value to 8, washing and drying to obtain the low-molecular-weight chitosan, and mixing 0.3kg of low-molecular-weight chitosan, 0.5kg of PMMA-loaded nano silver and 1kg of 50% acetic acid aqueous solution to prepare the antibacterial agent, wherein the PMMA-loaded nano silver is prepared by the preparation example 1.
Example 13: the difference between the efficient salt-resistant low-foam dispersing leveling agent and the embodiment 1 is that an antibacterial agent is added into the raw materials, the dosage of the antibacterial agent is 1kg, the dosage of water is reduced by 1kg, and the preparation method of the antibacterial agent comprises the following steps: adding 0.2kg of chitosan into 1.5% glacial acetic acid aqueous solution, carrying out ultrasonic oscillation at normal temperature, adding 0.1kg of hydrogen peroxide, stirring for 2h at 60 ℃, adjusting the pH value to 8, washing and drying to obtain the low-molecular-weight chitosan, and uniformly mixing 0.5kg of low-molecular-weight chitosan, 1.25kg of PMMA-loaded nano silver and 1.5kg of 50% acetic acid aqueous solution to obtain the antibacterial agent, wherein the PMMA-loaded nano silver is prepared by the preparation example 2.
Example 14: a high-efficiency salt-resistant low-foam dispersing leveling agent, which is different from the example 13 in that an antibacterial agent is prepared from the preparation example 3.
Example 15: a high-efficiency salt-resistant low-foam dispersing leveling agent, which is different from the embodiment 13 in that low-molecular-weight chitosan is not added.
Comparative example
Comparative example 1: the difference between the efficient salt-resistant low-foam dispersing leveling agent and the embodiment 1 is that no composite efficient dispersing agent is added.
Comparative example 2: the high-efficiency salt-resistant low-foam dispersing leveling agent is different from the high-efficiency salt-resistant low-foam dispersing leveling agent in example 1 in that no defoaming agent is added.
Comparative example 3: selecting a chemical AB leveling agent of Huangjiang.
Comparative example 4: sodium lauryl sulfate was chosen.
Comparative example 5: selecting chemical Hepiajia O from Huangma of Zhejiang.
Comparative example 6: a high-temperature leveling agent for terylene and blended fabrics thereof comprises the following components in parts by weight: 15 parts of glycerol ether oleate, 10 parts of tartaric acid, 10 parts of fatty amine polyoxyethylene ether, 18 parts of lanolin, 5 parts of di-tert-butyl hydroxybenzoate, 5 parts of polyvinylpyrrolidone, 2 parts of thickening agent, 5 parts of surfactant, 1 part of dispersing agent and 60 parts of water, wherein the dispersing agent is vinyl bis-stearamide, the thickening agent is hydroxypropyl methyl cellulose, and the surfactant is stearate.
Performance test
Leveling agents were prepared according to the methods in examples and comparative examples, and the performance of the leveling agents was examined with reference to the following methods:
1. foam performance: the leveling agent prepared in each example and comparative example was prepared into a test solution with a concentration of 5g/L and tested at room temperature (26 ℃), the test solution was injected from the bottom of the Roche foam tester into a syringe to a level above the 50mL mark, the stopcock of the graduated tube was closed and left to stand for 5min, the stopwatch was immediately started and the initial foam height (average height of foam edge and top) was read when the test solution in the dropper was run out, the stopwatch was continuously read within 1min, the tube wall was washed with the test solution before the test, and the test results were recorded in Table 2.
2. Migration property: dyeing the polyester fabric using disperse scarlet (S-2G ruby 1.0%owf, GS scarlet 2.0%owf, FB red 0.65%) and disperse dark blue (100% S-2G dark blue 2.3 optical-weighted owf, 165-alleged S-2G ruby 0.6%owf, 200%.
3. Retarding property: taking 5g of polyester fabric, adopting 2.0 percent (owf) of dye SGL turquoise blue, 1g/L of leveling agent and 1g/L of glacial acetic acid prepared in each embodiment or comparative example, not adding the leveling agent as a blank group, under the condition that the bath ratio is 1.
4. High-temperature dispersibility: preparing dye solution with the concentration of 0.5g/L by using S-5BL ruby, adding 1g/L of a leveling agent in each embodiment or comparative example to prepare 100mL of working solution, adjusting the pH value to be 5-5.5 by using glacial acetic acid, taking no leveling agent as a blank group, heating to 130 ℃ at the heating rate of 3 ℃/min, preserving the temperature for 40min, cooling to 90 ℃ at the speed of 3 ℃/min, carrying out suction filtration by using two layers of medium-speed filter paper, then airing the filter paper, observing the dye solution diffusion or particulate matter deposition phenomenon on the surface of the upper layer of filter paper, and grading, wherein 5-grade-no dye particles are coagulated; grade 4-micro dye particle agglomeration; grade 3-agglomeration of dye particles; level 2-agglomeration of the dye particles is more evident; level 1-dye particle agglomeration was very evident and the test results are reported in table 2.
6. Salt-resistant stability: taking back water from a typical factory of Shaoxing 2 to perform a test, each reuse water index is shown in Table 3, using 2 families of reuse water and tap water as water for measuring the dye transfer rate, dyeing the polyester fabric using disperse scarlet (S-2G ruby 1.0% owf, GS scarlet 2.0% owf, FB red 0.65% owf) and disperse dark blue (100% S-2G dark blue 2.3% owf, 165% S-2G ruby 0.6% owf, 200% S-2R orange 1.0% owf), stitching together with a white cloth as a cloth for dye transfer test, adding a leveling agent prepared in examples or comparative examples of 1G/L, glacial acetic acid of 1G/L, bath ratio of 1.6% to 130 ℃ at a temperature rise rate of 3 ℃/min, holding the temperature for 40min, taking out the water at a temperature drop of 3 ℃/min to 60 ℃, washing and drying, taking out the water and measuring the dye transfer rate after measuring the Color transfer rate of the disperse dye in GB/T-dye transfer test, measured by using a Col/K shift meter, measuring the apparent dye transfer rate measured after measuring 7000A/K shift value of the dye transfer test, 7000A.
7. Antibacterial durability of polyester fabric: preparing dye liquor with the concentration of 0.5g/L by adopting S-5BL ruby, adding 1g/L of leveling agent in each embodiment or comparative example to prepare 100mL of working solution, adjusting the pH value to 5-5.5 by glacial acetic acid, heating to 130 ℃ at the heating rate of 3 ℃/min, preserving heat for 30min, washing and drying, performing antibacterial effect tests on staphylococcus aureus (ATCC 6538), escherichia coli (ATCC 8099) and candida albicans (ACTT 10231) by referring to an oscillation method in FZ/T73023-2006 antibacterial knitwear, then soaping, detecting the antibacterial effect when soaping for 50 times and 100 times, and recording the detection result in Table 5.
TABLE 2 results of measurements of defoaming, migration dyeing, slow dyeing and high temperature dispersibility of leveling agents
It can be seen from the data in table 1 that the high-efficiency salt-resistant low-foam dispersing leveling agent prepared in the embodiments 1 to 5 is not easy to generate foam, has good defoaming performance, high dye transfer rate, good color repairing effect and strong dyeing retarding capability, is beneficial to improving the quality of a dyeing cloth surface, has good high-temperature dispersibility, can reduce the risk of dye agglomeration, can keep the stability of a dye bath, avoids the occurrence of a dye stain problem and prevents color cross-dyeing.
In example 6 and example 7, compared with example 1, the composite high-efficiency dispersant was not added with the basf dispersant CP9 and the basf dispersant CP72L, respectively, and a comparison of the data in table 2 shows that the leveling agents prepared in example 6 and example 7 have a reduced defoaming effect and deteriorated dye transfer rate and slow dye transfer rate.
In example 8, an equal amount of silicone defoamer was used instead of polyether defoamer, and the leveling agent prepared in example 8 had more foam and poorer defoaming effect during dyeing than in example 1.
In example 9, the monoester compound formed by esterifying fatty alcohol-polyoxyethylene ether and cyclohexane-1, 2-dicarboxylic acid is used instead of the diester compound, and compared with example 1, the dye transfer effect of the leveling agent prepared in example 9 is remarkably reduced.
Compared with the example 1, the results of the transfer dyeing rate, the slow dyeing property and the like obtained by the test are poorer than those of the example 1, and the level dyeing effect is reduced.
Compared with the embodiment 1, the comparative example 2 has the advantages that no polyether type defoaming agent is added, the defoaming effect of the leveling agent is obviously reduced, more foams are generated, and the cylinder is easily blocked.
Comparative examples 3-5 are commercially available leveling agents, the leveling agent of comparative example 3 has a small dye transfer rate and a poor dye retarding effect, and the leveling agents of comparative example 4 and comparative example 5 have more foams and poor defoaming effect and have poor dye transfer and dye retarding effects.
Comparative example 6 is a leveling agent disclosed in the prior art, and compared with example 1, the leveling agent has poor defoaming effect, poor retarding ability and high-temperature dispersibility of grade 4.
TABLE 3 index of reuse water
Table 4 salt stability test results of leveling agents
Combining examples 1-5 and table 4, it can be seen that the leveling agents prepared in examples 1-5 have better migration property, improve the migration property of the dye, and can desorb and re-dye the dye in the deep part.
In example 6 and example 7, compared with example 1, the composite high-efficiency dispersant is not added with the BASF dispersant CP9 and the BASF dispersant CP72L respectively, the dye-transfer rates of the leveling agents prepared in examples 6 and 7 are poorer than those of example 1 under the condition of tap water, the dye-transfer rates of examples 6 and 7 are lower under the condition of reuse water 1 and reuse water 2, and the salt resistance of the leveling agent is reduced without adding the BASF dispersant CP9 or the BASF dispersant CP 72L.
In example 8, the same amount of silicone defoamer was used instead of polyether defoamer, and the dye transfer rates were not very different between tap water and reuse water.
In example 9, the monoester compound formed by esterifying fatty alcohol-polyoxyethylene ether and cyclohexane-1, 2-dicarboxylic acid was used instead of the diester compound, the transfer dyeing property of the monoester compound under the condition of tap water was poor, and after reuse water was used, the transfer dyeing rate was further reduced, and the salt resistance was poor.
Compared with the example 1, the composite high-efficiency dispersing agent and the polyether type defoaming agent are not added in the comparative examples 1 and 2 respectively, the dye transfer rate of the comparative examples 1 and 2 under the condition of tap water is lower than that of the example 1, the dye transfer rate under the condition of reuse water is further reduced, and the dye transfer effect is weakened.
Comparative examples 3 to 5 are commercially available leveling agents, which have a lower dye transfer rate under tap water conditions than example 1, and have a lower dye transfer rate under reuse water conditions than under tap water conditions, indicating poor salt stability.
Comparative example 6 is a leveling agent disclosed in the prior art, which has a better dye transfer rate under tap water conditions than under reuse water conditions, and has a significantly reduced dye transfer rate and poor salt tolerance under reuse water conditions.
TABLE 5 influence of leveling agent on antibacterial property of polyester fabric
In the embodiment 1 and the comparative example 6, no antibacterial substance is added, and the prepared polyester fabric has no antibacterial effect; in examples 10 and 11, the commercial antibacterial agents were used, but the initial antibacterial rate was high, but the antibacterial rate was reduced after soaping, and the antibacterial effect was not long-lasting.
In examples 12 and 13, the antibacterial agent made of low molecular weight chitosan and PMMA carrying nano silver is added, the initial bacteriostasis rate of the dyed polyester fabric is higher than that of example 11, and after soaping, the bacteriostasis rate is reduced less than that of example 11, and after 100 times of soaping, the bacteriostasis rate still reaches more than 90%.
The difference between example 14 and example 13 is that the PMMA prepared in preparation example 3 is used as an antibacterial agent to carry nano silver, and table 5 shows that after the leveling agent prepared in example 14 is used for dyeing, although the initial antibacterial rate of the prepared polyester fabric is high, the antibacterial rate is significantly reduced after soaping, and the antibacterial durability is reduced.
Compared with the example 13, the antibacterial agent of the example 15 is not added with the low molecular weight chitosan, the leveling agent prepared in the example 15 is used for dyeing the polyester fabric, the initial antibacterial rate of the polyester fabric is lower than that of the example 13, and the antibacterial rate is obviously reduced after soaping.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (8)
1. The efficient salt-resistant low-foam dispersing leveling agent is characterized by comprising the following components in parts by weight: 15-25 parts of fatty alcohol-polyoxyethylene ether ester compound, 2-5 parts of composite high-efficiency dispersing agent, 5-10 parts of anionic emulsifier, 2-4 parts of liquid alkali, 0.04-0.1 part of defoaming agent and the balance of water to 100 parts;
the fatty alcohol-polyoxyethylene ether ester compound is a diester compound of fatty alcohol-polyoxyethylene ether and cyclohexane-1, 2-dicarboxylic acid;
the fatty alcohol-polyoxyethylene ether is an adduct of fatty alcohol with a carbon chain length of C16-18 and ethylene oxide.
2. The high-efficiency salt-tolerant low-foam dispersion leveling agent according to claim 1, wherein the composite high-efficiency dispersant comprises a basf dispersant CP72L and a basf dispersant CP9 in a mass ratio of (0.3-0.5): 1.
3. The high-efficiency salt-tolerant low-foam dispersion leveling agent according to claim 1, wherein the anionic emulsifier comprises pentadecyl alkylbenzene sulfonic acid and metapentadecyl alkylbenzene sulfonic acid in a mass ratio of 1 (1.5-2).
4. The high-efficiency salt-tolerant low-foam dispersing leveling agent according to claim 1, wherein the defoamer is a polyether defoamer.
5. The high-efficiency salt-resistant low-foam dispersion leveling agent according to claim 1, wherein the leveling agent further comprises an antibacterial agent, and the dosage of the antibacterial agent is 0.5-1 part.
6. The high-efficiency salt-tolerant low-foam dispersion leveling agent according to claim 5, wherein the antibacterial agent comprises the following components in parts by weight: 0.3-0.5 part of low molecular weight chitosan, 0.5-1.25 parts of PMMA-carried nano silver and 1-1.5 parts of acetic acid solution.
7. The efficient salt-tolerant low-foam dispersion leveling agent according to claim 6, wherein the preparation method of PMMA carrying nano silver comprises the following steps: mixing an MMA monomer, an AIBN initiator and nano-silver particles, performing ultrasonic dispersion for 5-10min, heating to 90-95 ℃, performing heat preservation and ultrasonic dispersion for 3-3.5h, performing vacuum drying, crushing, and performing ball milling until the particle size is 20-200 mu m, wherein the mass ratio of the MMA monomer to the ABN initiator to the nano-silver particles is 1.02-0.03.
8. Use of the high efficiency salt tolerant low foam dispersing leveling agent according to any one of claims 1 to 7 in dyeing polyester containing fabrics.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06200482A (en) * | 1992-12-28 | 1994-07-19 | Nikka Chem Co Ltd | Dyeing assistant for hydrophobic fiber |
| CN104389205A (en) * | 2014-12-11 | 2015-03-04 | 上海安诺其集团股份有限公司 | Preparation method of high-temperature leveling agent composition |
| CN104389204A (en) * | 2014-12-11 | 2015-03-04 | 浙江安诺其助剂有限公司 | High-temperature leveling agent composition |
| CN104404795A (en) * | 2014-12-11 | 2015-03-11 | 浙江安诺其助剂有限公司 | Application of high-temperature leveling agent composition as high-temperature leveling agent in terylene dyeing |
| CN114150516A (en) * | 2021-12-02 | 2022-03-08 | 绍兴海成化工有限公司 | Efficient level dyeing repairing agent and application thereof |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06200482A (en) * | 1992-12-28 | 1994-07-19 | Nikka Chem Co Ltd | Dyeing assistant for hydrophobic fiber |
| CN104389205A (en) * | 2014-12-11 | 2015-03-04 | 上海安诺其集团股份有限公司 | Preparation method of high-temperature leveling agent composition |
| CN104389204A (en) * | 2014-12-11 | 2015-03-04 | 浙江安诺其助剂有限公司 | High-temperature leveling agent composition |
| CN104404795A (en) * | 2014-12-11 | 2015-03-11 | 浙江安诺其助剂有限公司 | Application of high-temperature leveling agent composition as high-temperature leveling agent in terylene dyeing |
| CN114150516A (en) * | 2021-12-02 | 2022-03-08 | 绍兴海成化工有限公司 | Efficient level dyeing repairing agent and application thereof |
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