CN112941938B - Chinlon dyeing anti-color-spot-fixing agent and application method thereof - Google Patents
Chinlon dyeing anti-color-spot-fixing agent and application method thereof Download PDFInfo
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- CN112941938B CN112941938B CN202010696324.9A CN202010696324A CN112941938B CN 112941938 B CN112941938 B CN 112941938B CN 202010696324 A CN202010696324 A CN 202010696324A CN 112941938 B CN112941938 B CN 112941938B
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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
- D06P5/04—After-treatment with organic compounds
- D06P5/06—After-treatment with organic compounds containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C227/00—Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton
- C07C227/04—Formation of amino groups in compounds containing carboxyl groups
- C07C227/06—Formation of amino groups in compounds containing carboxyl groups by addition or substitution reactions, without increasing the number of carbon atoms in the carbon skeleton of the acid
- C07C227/08—Formation of amino groups in compounds containing carboxyl groups by addition or substitution reactions, without increasing the number of carbon atoms in the carbon skeleton of the acid by reaction of ammonia or amines with acids containing functional groups
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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
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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
- D06P5/04—After-treatment with organic compounds
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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
- D06P5/04—After-treatment with organic compounds
- D06P5/08—After-treatment with organic compounds macromolecular
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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
- D06P5/10—After-treatment with compounds containing metal
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Abstract
The invention provides a chinlon dyeing stain-preventing and fixing agent and an application method thereof. The invention provides a chinlon dyeing stain-preventing agent which comprises the following components: 15-30% of carboxymethylated fatty amine polyoxyethylene ether, 4-8% of chelating dispersant, 0.05-0.1% of organic silicon defoamer and the balance of water. The nylon fabric treated by the nylon dyeing anti-color spot fixing agent has the remarkable characteristics of thorough color spot removal, short process flow, no influence on color light, high wet treatment color fastness and contribution to clean production.
Description
Technical Field
The invention relates to the technical field of textile printing and dyeing, in particular to a chinlon dyeing anti-color spot fixing agent and an application method thereof.
Background
The polyamide fiber, also called nylon, is a high molecular fiber material mainly prepared from hexamethylenediamine, adipic acid, aminocaproic acid or caprolactam serving as raw materials through polycondensation reaction, and has the characteristics of high strength, wear resistance and good rebound resilience. The nylon fabric is the best choice for sportswear, swimwear, body-building wear, down jackets and mountaineering wear due to the characteristics of excellent wear resistance and light and thin texture. In addition, nylon fibers are widely used in the field of manufacturing industrial products such as cords, transmission belts, hoses, ropes, fishing nets, tires, parachutes, and the like.
Since disperse dyes and reactive dyes have light colors on nylon fabrics, acid dyes are mainly adopted for dyeing nylon fabrics at present. The dyeing affinity of acid dyes (including weak acid bath dyes and neutral bath dyes) to chinlon mainly comes from the formation of electrostatic acting force between anionic groups such as sulfonic groups on dye parent bodies and chinlon amino groups (below isoelectric points), but dyeing flowers are easy to generate in the dyeing process, and in order to solve the problem, a cationic surfactant is generally added as a leveling agent to inhibit the dye-uptake rate and increase the dye-transfer property. When dyeing is finished and the fabric is washed to be neutral, the dye on the fabric is easy to desorb to cause poor wet treatment fastness, so that the fabric (especially the fabric with dark color) needs to be subjected to color fixing treatment after dyeing. At present, most of the commonly used color fixing agents are methylene polyphenol compounds containing sulfonic groups, the compounds are firstly adsorbed in amorphous areas of fibers, and then methylene polyphenol is generated during high-temperature shaping and further condensed into insoluble products, so that the color fixing purpose is achieved.
According to the dyeing and color fixing principle, after dyeing is finished, the cloth must be washed for many times to remove the loose color dye and the leveling agent on the cloth surface. Otherwise, the cationic micelle formed by the leveling agent is bound with the anionic fixing agent to form gel which is absorbed on the cloth surface, and the gel becomes insoluble fixed color spots after high-temperature setting. In addition, the water quality has high total hardness and contains metal ions such as copper, iron and the like, and in the dyeing and color fixing process, the metal ions are combined with a color fixing agent to generate insoluble precipitates which are adhered to the cloth surface to form permanent color fixing spots. Color fixing spots caused by improper operation are certainly not eliminated, for example, when the acidic color fixing agent is mixed with high-concentration acid, the acidic color fixing agent is easy to agglutinate to generate precipitation, and the color fixing spot is adhered to the cloth surface during color fixing; during material melting, the high-concentration color fixing agent is fed when the high-concentration color fixing agent is not completely dissolved, and color fixing spots are easy to form. It is worth noting that the color fixing spots cannot be repaired after being formed, and the quality of the fabric is reduced and the cost is lost.
In order to prevent the generation of color fixing spots, the current popular practice in factories is to add a certain amount of nonionic surfactant (such as an oil removal agent) and a color fixing agent into one bath during color fixing; and secondly, adding pure alkali washing after color fixing. Both methods have some effect on preventing color fixing spots, but both methods result in a different degree of reduction in wet-processed color fastness. Patent CN110552217A discloses a polyamide color fixing spot preventing agent, wherein a surfactant contained in the formula, such as sodium fatty alcohol polyoxyethylene ether (9) sulfonate, is a conventional strong anionic surfactant, cannot effectively block the action of a cationic leveling agent and a color fixing agent, and can generate new color lake; the solvent contained in the formula is common hydrophilic cosolvent, such as ethylene glycol monobutyl ether, which can not effectively dissolve the color lake and can also deteriorate the color tone and the wet processing color fastness of the cloth cover. Therefore, the development and application of the chinlon dyeing stain-preventing agent have great significance for improving the quality grade of the fabric and cleaning production.
Disclosure of Invention
The invention mainly aims to provide a chinlon dyeing color fixing prevention agent and an application method thereof, and aims to solve the problem that color fixing spots such as dark spots, blocks and the like which are difficult to remove are easily formed on a cloth cover in color fixing and shaping.
In order to achieve the purpose, the invention provides a chinlon dyeing color fixing spot prevention agent which comprises the following components in percentage by mass:
15-30% of carboxymethylated fatty amine polyoxyethylene ether, 4-8% of chelating dispersant, 0.05-0.1% of organic silicon defoamer and the balance of water.
Preferably, the preparation method of the carboxymethylated fatty amine polyoxyethylene ether comprises the following steps:
(1) adding fatty amine polyoxyethylene ether, chloroacetic acid and sodium hydroxide into a reaction kettle in a molar ratio of 1: 1.2-2.4: 2.4-4.8, reacting at 80-100 ℃ for 2-4 hours, and cooling to 40 ℃;
(2) and (2) adding equal volume of absolute ethyl alcohol into the mixed system cooled in the step (1), filtering out a white precipitate, and evaporating the ethyl alcohol at 40 ℃ under reduced pressure to obtain a cream yellow paste, namely the carboxymethylated fatty amine polyoxyethylene ether.
Preferably, the fatty amine polyoxyethylene ether has a structural formula:
wherein R is octadecyl or dodecyl, x >0, y >0 and x + y ═ 3, 5, 7.
The polyoxyethylene ether and the carboxylic acid group contained in the carboxymethylation product of the polyoxyethylene ether of octadecyl or dodecyl amine belong to nonionic and weak anionic amphoteric surfactants, and compared with the strong anionic surface activity of sodium dodecyl polyoxyethylene ether sulfate or sodium dodecyl polyoxyethylene ether sulfonate and the like, the anionic charge density is low, and the cationic surfactant can be completely mutually attracted with a dyeing leveling agent with positive charges without generating precipitates.
Preferably, the chelating dispersant comprises: iminodiacetic acid, sodium citrate, sodium tartrate, low molecular weight sodium polyacrylate, polymaleic acid sodium, low molecular weight maleic acid-acrylic acid copolymer, and polyaspartic acid.
The chelating dispersant contains carboxylic acid and hydroxyl, and can generate hydrogen bonds with carboxymethylation products of polyoxyethylene ether of fatty amine, so that a strong network structure is formed, residual dyeing leveling agent and metal ions such as calcium, magnesium, copper, iron and the like in water are effectively shielded from interacting with an acid dye fixing agent, and dark spots (blocks) which are difficult to remove and are formed on the shaping middle surface of the nylon after dyeing are eliminated.
Preferably, the silicone defoamer comprises: polyether, organic silicon and polyether modified silicon.
Preferably, the compound is aqueous emulsion with the concentration of 10-20%.
In order to achieve the above object, the present invention further provides an application method of the chinlon dyeing color fixing stain preventing agent, which comprises the chinlon dyeing color fixing stain preventing agent of any one of claims 1 to 6, and is characterized by comprising the following steps:
(1) after dyeing the nylon fabric, preparing the stain-preventing agent into working solution, wherein the stain-preventing agent in the working solution accounts for 0.5-1.5% of the nylon fabric by mass percent;
(2) controlling the ratio of the chinlon fabric to the working solution to be 1: 10-20, and carrying out pretreatment or one-bath treatment at 20-55 ℃ for 10-20 min;
(3) and (3) directly adding a color fixing agent into the mixed solution treated in the step (2) to complete color fixing.
Preferably, the nylon fabric in step (1) comprises: any one or more of nylon knitted fabric, nylon spandex elastic knitted fabric and nylon shuttle fabric.
Preferably, the fixing agent in the step (3) is a methylene polyphenol compound containing sulfonic acid groups.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
(1) according to the technical scheme, the nylon dyeing color fixing spot preventing agent adopted by the invention has the advantages that the carboxymethylation reaction of the polyoxyethylene ether of octadecyl or dodecyl amine is adopted, the nucleophilic substitution reaction of chloroacetic acid and the polyoxyethylene ether of octadecyl or dodecyl amine is adopted, the used raw materials are low in cost and easy to obtain, the reaction condition is mild, and the synthesis process is simple. The adopted chelating dispersant is a conventional and easily-obtained chemical raw material, the preparation and production of the anti-solid stain agent are easy to industrialize, the biodegradability of the auxiliary agent is good, and the environment is protected.
(2) According to the technical scheme, the stain fixing prevention agent is added into a color fixing bath after nylon is dyed, and the stain fixing prevention agent consisting of carboxymethylation products of polyoxyethylene ether of octadecyl or dodecyl amine and a hydroxycarboxylic acid type chelating dispersant is used for blocking a complexing leveling agent (cation) and metal ions such as calcium, magnesium, copper, iron and the like, so that the stain fixing agent and the color fixing agent (anion) are prevented from precipitating to form a stain fixing. The technical scheme of the invention has the obvious characteristics of thorough spot removal, short process flow, no influence on color light, high color fastness of wet treatment and contribution to clean production.
Detailed Description
The technical solutions in the embodiments of the present invention are described clearly and completely below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
(1) The fabric types are as follows: nylon matte weft knitting plain cloth (40D/34F, 120 g/m)2)
(2) The process flow is as follows:
preparation of carboxymethylated fatty amine polyoxyethylene ether: sequentially adding 0.1mol of fatty amine polyoxyethylene ether (AC1803), 0.12mol of chloroacetic acid and 0.24mol of sodium hydroxide into a reaction kettle, reacting at the temperature of 80 ℃ for 4 hours, and cooling to 40 ℃; adding absolute ethyl alcohol with the same volume as the reaction mixture, filtering out white precipitate, and removing the ethyl alcohol by reduced pressure distillation at 40 ℃ to obtain cream yellow paste, namely the carboxymethylated fatty amine polyoxyethylene ether.
Compounding the anti-color-fixing agent: according to the mass percentage, 15 percent of carboxymethylated fatty amine polyoxyethylene ether, 15 percent of chelating dispersant (sodium citrate, 2 percent of low molecular weight maleic acid-acrylic acid copolymer), 0.05 percent of organic silicon defoamer and the balance of water are compounded to form the nylon dyeing color fixing spot preventing agent.
The application of the stain-fixing agent is as follows: after dyeing the polyamide matte weft-knitted plain cloth, preparing a fixing and spot-preventing agent into a working solution, wherein the fixing and spot-preventing agent in the working solution accounts for 1.5% of the polyamide matte weft-knitted plain cloth in percentage by mass; the ratio of the chinlon matte weft-knitted plain cloth to the working solution is controlled to be 1:10, and after pretreatment is carried out for 20min at 20 ℃, a methylene polyphenol color fixing agent containing sulfonic acid groups is directly added to complete color fixing.
Example 2
(1) The fabric types are as follows: nylon matte weft knitting plain cloth (70D/34F, 150 g/m)2)
(2) The process flow is as follows:
preparation of carboxymethylated fatty amine polyoxyethylene ether: sequentially adding 0.1mol of fatty amine polyoxyethylene ether (AC1803), 0.24mol of chloroacetic acid and 0.48mol of sodium hydroxide into a reaction kettle, reacting at 100 ℃ for 2 hours, and cooling to 40 ℃; adding absolute ethyl alcohol with the same volume as the reaction mixture, filtering out white precipitate, and removing the ethyl alcohol by reduced pressure distillation at 40 ℃ to obtain cream yellow paste, namely the carboxymethylated fatty amine polyoxyethylene ether.
Compounding the anti-color-fixing agent: according to the mass percentage, 30 percent of carboxymethylated fatty amine polyoxyethylene ether, a chelating dispersant (4 percent of sodium tartrate and 4 percent of low molecular weight sodium polyacrylate), 0.1 percent of an organic silicon defoaming agent and the balance of water are compounded to form the nylon dyeing color fixing spot preventing agent.
The application of the stain-fixing agent is as follows: after dyeing the polyamide matte weft-knitted plain cloth, preparing a color fixing and spot preventing agent into a working solution, wherein the color fixing and spot preventing agent in the working solution accounts for 0.5% of the polyamide matte weft-knitted plain cloth in percentage by mass; the ratio of the chinlon matte weft-knitted plain cloth to the working solution is controlled to be 1:20, and after the chinlon matte weft-knitted plain cloth is treated for 10min at 55 ℃ by a one-bath method, a methylene polyphenol color fixing agent containing sulfonic groups is directly added to complete color fixing.
Example 3
(1) The fabric types are as follows: nylon nylon taffeta (70D/30F is multiplied by 70D/30F, 190T)
(2) The process flow is as follows:
preparation of carboxymethylated fatty amine polyoxyethylene ether: sequentially adding 0.1mol of fatty amine polyoxyethylene ether (AC1807), 0.16mol of chloroacetic acid and 0.32mol of sodium hydroxide into a reaction kettle, reacting at the temperature of 90 ℃ for 3 hours, and cooling to 40 ℃; adding absolute ethyl alcohol with the same volume as the reaction mixture, filtering out white precipitate, and removing the ethyl alcohol by reduced pressure distillation at 40 ℃ to obtain cream yellow paste, namely the carboxymethylated fatty amine polyoxyethylene ether.
Compounding the anti-color-fixing agent: according to the mass percentage, 20 percent of carboxymethylated fatty amine polyoxyethylene ether, 3 percent of chelating dispersant (iminodiacetic acid, 3 percent of polyaspartic acid), 0.1 percent of organic silicon defoaming agent and the balance of water are compounded to form the nylon dyeing color fixing stain preventing agent.
The application of the stain-fixing agent is as follows: after nylon yarn is dyed, preparing a fixing stain preventing agent into a working solution, wherein the fixing stain preventing agent in the working solution accounts for 1% of the nylon yarn by mass percent; the ratio of the nylon yarn to the working solution is controlled to be 1:15, and after the nylon yarn is treated for 15min by adopting a pretreatment method at 35 ℃, a methylene polyphenol color fixing agent containing sulfonic acid groups is directly added to complete color fixing.
Example 4
(1) The fabric types are as follows: nylon high-elastic slimming knitted fabric (nylon 40D/28F + spandex 30D, 170 g/m)2)
(2) The process flow is as follows:
preparation of carboxymethylated fatty amine polyoxyethylene ether: sequentially adding 0.1mol of fatty amine polyoxyethylene ether (AC1203), 0.12mol of chloroacetic acid and 0.24mol of sodium hydroxide into a reaction kettle, reacting at the temperature of 90 ℃ for 3 hours, and cooling to 40 ℃; adding absolute ethyl alcohol with the same volume as the reaction mixture, filtering out white precipitate, and removing the ethyl alcohol by reduced pressure distillation at 40 ℃ to obtain cream yellow paste, namely the carboxymethylated fatty amine polyoxyethylene ether.
Compounding the anti-color-fixing agent: according to the mass percentage, 30 percent of carboxymethylated fatty amine polyoxyethylene ether, 4 percent of chelating dispersant (iminodiacetic acid, 4 percent of sodium polymaleate), 0.07 percent of organic silicon defoamer and the balance of water are compounded to form the nylon dyeing color fixing spot preventing agent.
The application of the stain-fixing agent is as follows: after the nylon high-elastic slimming knitted fabric is dyed, preparing a color fixing spot preventing agent into working solution, wherein the color fixing spot preventing agent accounts for 1.5% of the nylon high-elastic slimming knitted fabric in percentage by mass; the ratio of the nylon high-elastic slimming knitted fabric to the working solution is controlled to be 1:15, and after the nylon high-elastic slimming knitted fabric is treated by a pretreatment method for 20min at 40 ℃, a methylene polyphenol color fixing agent containing sulfonic acid groups is directly added to complete color fixing.
Example 5
(1) The fabric types are as follows: n + OP chinlon matte warp knitted fabric (150 g/m)2)
(2) The process flow is as follows:
preparation of carboxymethylated fatty amine polyoxyethylene ether: sequentially adding 0.1mol of fatty amine polyoxyethylene ether (AC1205), 0.2mol of chloroacetic acid and 0.4mol of sodium hydroxide into a reaction kettle, reacting at 85 ℃ for 4 hours, and cooling to 40 ℃; adding absolute ethyl alcohol with the same volume as the reaction mixture, filtering out white precipitate, and removing the ethyl alcohol by reduced pressure distillation at 40 ℃ to obtain cream yellow paste, namely the carboxymethylated fatty amine polyoxyethylene ether.
Compounding the anti-color-fixing agent: according to the mass percentage, 25 percent of carboxymethylated fatty amine polyoxyethylene ether, chelating dispersant (3 percent of citric acid, 3 percent of low molecular weight sodium acrylate), 0.1 percent of organic silicon defoamer and the balance of water are compounded to form the nylon dyeing color fixing spot preventing agent.
The application of the stain-fixing agent is as follows: after the N + OP chinlon matte warp-knitted fabric is dyed, preparing a color-fixing spot-preventing agent into a working solution, wherein the color-fixing spot-preventing agent in the working solution accounts for 1.0% of the N + OP chinlon matte warp-knitted fabric by mass percent; the proportion of the N + OP chinlon matte warp-knitted fabric to the working solution is controlled to be 1:10, and after the fabric is treated by a pretreatment method for 15min at 45 ℃, a methylene polyphenol color fixing agent containing sulfonic groups is directly added to complete color fixing.
Example 6
(1) The fabric types are as follows: nylon nylon taffeta (50D/30F is multiplied by 50D/30F, 250T)
(2) The process flow is as follows:
preparation of carboxymethylated fatty amine polyoxyethylene ether: sequentially adding 0.1mol of fatty amine polyoxyethylene ether (AC1207), 0.12mol of chloroacetic acid and 0.24mol of sodium hydroxide into a reaction kettle, reacting at the temperature of 100 ℃ for 2 hours, and cooling to 40 ℃; adding absolute ethyl alcohol with the same volume as the reaction mixture, filtering out white precipitate, and removing the ethyl alcohol by reduced pressure distillation at 40 ℃ to obtain cream yellow paste, namely the carboxymethylated fatty amine polyoxyethylene ether.
Compounding the anti-color-fixing agent: according to the mass percentage, 15 percent of carboxymethylated fatty amine polyoxyethylene ether, 4 percent of chelating dispersant (sodium tartrate, 4 percent of polymaleic anhydride), 0.1 percent of organic silicon defoamer and the balance of water are compounded to form the nylon dyeing color fixing spot preventing agent.
The application of the stain-fixing agent is as follows: after nylon is dyed, preparing a fixing stain preventing agent into a working solution, wherein the fixing stain preventing agent in the working solution accounts for 1.5% of the nylon; the ratio of the nylon yarn to the working solution is controlled to be 1:20, and after the nylon yarn is treated for 15min by adopting a pretreatment method at 55 ℃, a methylene polyphenol color fixing agent containing sulfonic acid groups is directly added to complete color fixing.
Comparative example 1
(1) The fabric types are as follows: nylon matte weft knitting plain cloth (70D/30F, 15)0g/m2)
(2) The process flow comprises the following steps: removing color fixing spots by using a degreasing agent, preparing a working solution with the mass percentage of 1.5% of a nonionic degreasing agent F (the weight of the nylon matte weft-knitted plain cloth) after the nylon matte weft-knitted plain cloth is dyed by a conventional acid dye, controlling the ratio of the nylon matte weft-knitted plain cloth to the working solution to be 1:10, treating for 20min at 55 ℃ by using a one-bath method, and directly adding a methylene polyphenol color fixing agent containing sulfonic groups to complete color fixing.
Comparative example 2
(1) The fabric types are as follows: nylon matte weft knitting plain cloth (70D/30F, 150g/m2)
(2) The process flow comprises the following steps: the color spots are removed by adopting soda washing, after the chinlon matte weft-knitted plain cloth is dyed by conventional acid dye, methylene polyphenol color fixing agent containing sulfonic groups is added to complete color fixing, 0.5% of working solution of soda (the weight of the chinlon matte weft-knitted plain cloth) is prepared according to mass percentage, the ratio of the chinlon matte weft-knitted plain cloth to the working solution is controlled to be 1:10, and after the chinlon matte weft-knitted plain cloth is treated for 15min at 65 ℃, an alkali washing procedure is completed by cleaning.
The fabrics obtained in examples 1 to 6, comparative example 1 and comparative example 2 were subjected to the performance tests of color spots, color fastness to washing and perspiration fastness, wherein the color spots were evaluated visually, and the color fastness to washing and the perspiration fastness were evaluated respectively by the national standards GB/T3921-2008 textile color fastness to washing and GB/T3922-1995 textile color fastness to perspiration fastness, and the higher the grade, the better the color fastness was. The test results are shown in Table 1.
TABLE 1 results of fabric Performance test of examples 1 to 6, comparative example 1 and comparative example 2
As can be seen from Table 1, no fixed color spots are found in the nylon dyed fabrics obtained in examples 1-6 and comparative example 2, and the color fastness to washing and the color fastness to perspiration of the nylon dyed fabrics obtained in examples 1-6 and comparative example 1 are better than that of comparative example 1, and higher than that of comparative example 2. It should be noted that the molar ratio of the reactants, the reaction temperature and the time in the preparation process of the carboxymethylation product of polyoxyethylene ether of octadecyl or dodecyl amine are very critical. The molar ratio is maladjusted, more byproducts are generated, the content of effective ingredients is reduced, and the prevention capability of fixing color spots is influenced; the reaction temperature is too low or too high, which is not beneficial to the nucleophilic reaction, so that the yield of the carboxymethylated fatty amine polyoxyethylene ether is reduced; the reaction time is too short, the reaction does not reach equilibrium, the product is hydrolyzed too long, the yield is reduced, and the anti-spot effect is influenced.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the present specification and directly/indirectly applied to other related technical fields within the spirit of the present invention are included in the scope of the present invention.
Claims (7)
1. The chinlon dyeing color fixing spot prevention agent is characterized by comprising the following components in percentage by mass:
15-30% of carboxymethylated fatty amine polyoxyethylene ether, 4-8% of chelating dispersant, 0.05-0.1% of organic silicon defoamer and the balance of water,
the preparation method of the carboxymethylated fatty amine polyoxyethylene ether comprises the following steps:
(1) adding fatty amine polyoxyethylene ether, chloroacetic acid and sodium hydroxide into a reaction kettle in sequence according to the molar ratio of 1: 1.2-2.4: 2.4-4.8, and heating at 80-100 DEGoAfter reacting for 2-4 hours under C, cooling to 40 DEGoC；
(2) Adding isometric anhydrous ethanol into the mixed system cooled in the step (1), filtering out white precipitate, and obtaining 40 percent of white precipitateoC, decompressing and steaming to remove ethanol to obtain cream yellow paste, namely the carboxymethylated fatty amine polyoxyethylene ether,
the structural formula of the fatty amine polyoxyethylene ether is as follows:
wherein R is octadecyl or dodecyl, x >0, y >0 and x + y =3, 5, 7.
2. The nylon dyeing anti-fixation stain agent of claim 1, wherein the chelating dispersant comprises: iminodiacetic acid, sodium citrate, sodium tartrate, low molecular weight sodium polyacrylate, polymaleic acid sodium, low molecular weight maleic acid-acrylic acid copolymer, and polyaspartic acid.
3. The nylon dyeing anti-fixation stain agent of claim 1, wherein the silicone defoamer comprises: polyether, organic silicon and polyether modified silicon.
4. The nylon dyeing color fixing stain-resistant agent according to claim 3, wherein the compound is an aqueous emulsion with the concentration of 10-20%.
5. An application method of a chinlon dyeing color fixing prevention stain agent, which comprises the chinlon dyeing color fixing prevention stain agent as claimed in any one of claims 1 to 4, and is characterized by comprising the following steps:
(1) after the nylon fabric is dyed, preparing the stain-preventing and fixing agent into working solution according to mass percent
In a ratio, the anti-color-spot-fixing agent in the working solution accounts for 0.5-1.5% of the nylon fabric;
(2) the ratio of the chinlon fabric to the working solution is controlled to be 1: 10-20 and to be 20-55oC is below
Pretreating or treating in one bath for 10-20 min;
(3) and (3) directly adding a color fixing agent into the mixed solution treated in the step (2) to complete color fixing.
6. The method for applying the chinlon dyeing color fastness spot preventing agent according to claim 5, wherein the chinlon fabric in the step (1) comprises the following steps: any one or more of nylon knitted fabric, nylon spandex elastic knitted fabric and nylon shuttle fabric.
7. The method for applying the chinlon dyeing color fastness spot preventing agent as claimed in claim 5, wherein in the step (3), the color fixing agent is a methylene polyphenol compound containing sulfonic acid groups.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010696324.9A CN112941938B (en) | 2020-07-20 | 2020-07-20 | Chinlon dyeing anti-color-spot-fixing agent and application method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010696324.9A CN112941938B (en) | 2020-07-20 | 2020-07-20 | Chinlon dyeing anti-color-spot-fixing agent and application method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN112941938A CN112941938A (en) | 2021-06-11 |
| CN112941938B true CN112941938B (en) | 2021-09-14 |
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| US6028046A (en) * | 1997-08-11 | 2000-02-22 | Witco Corporation | Detergents with polyamine alkoxylates useful in cleaning dyed fabrics while inhibiting dye transfer |
| CN102850500A (en) * | 2012-08-24 | 2013-01-02 | 浙江传化股份有限公司 | Acid reaction resistant chinlon fixer and application thereof |
| CN110552217A (en) * | 2019-09-07 | 2019-12-10 | 伟格仕纺织助剂（江门）有限公司 | Chinlon color fixation spot preventing agent |
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Patent Citations (3)
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| US6028046A (en) * | 1997-08-11 | 2000-02-22 | Witco Corporation | Detergents with polyamine alkoxylates useful in cleaning dyed fabrics while inhibiting dye transfer |
| CN102850500A (en) * | 2012-08-24 | 2013-01-02 | 浙江传化股份有限公司 | Acid reaction resistant chinlon fixer and application thereof |
| CN110552217A (en) * | 2019-09-07 | 2019-12-10 | 伟格仕纺织助剂（江门）有限公司 | Chinlon color fixation spot preventing agent |
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