CN111733612A - Special disperse dye for dyeing polyester yarns and preparation method thereof - Google Patents
Special disperse dye for dyeing polyester yarns and preparation method thereof Download PDFInfo
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- CN111733612A CN111733612A CN202010718127.2A CN202010718127A CN111733612A CN 111733612 A CN111733612 A CN 111733612A CN 202010718127 A CN202010718127 A CN 202010718127A CN 111733612 A CN111733612 A CN 111733612A
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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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- 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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- D06P1/50—Derivatives of cellulose
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- 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
- D06P1/5214—Polymers of unsaturated compounds containing no COOH groups or functional derivatives thereof
- D06P1/5221—Polymers of unsaturated hydrocarbons, e.g. polystyrene polyalkylene
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- 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
- D06P1/5292—Macromolecular compounds obtained otherwise than by reactions involving only unsaturated carbon-to-carbon bonds containing Si-atoms
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- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/642—Compounds containing nitrogen
- D06P1/649—Compounds containing carbonamide, thiocarbonamide or guanyl groups
- D06P1/6495—Compounds containing carbonamide -RCON= (R=H or hydrocarbons)
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- 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
- D06P1/653—Nitrogen-free carboxylic acids or their salts
- D06P1/6533—Aliphatic, araliphatic or cycloaliphatic
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- 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
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
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- 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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Abstract
The invention discloses a special disperse dye for dyeing polyester yarns and a preparation method thereof, wherein the special disperse dye for dyeing polyester yarns is prepared from the following raw materials in parts by weight: 70-98 parts of disperse dye, 0.5-6 parts of diphenylformamide, 2-30 parts of sodium chlorite, 0.8-4 parts of styrene maleic anhydride copolymer, 0.3-2 parts of sulfonic acid ethyl cellulose, 0.2-1.6 parts of carboxymethyl cellulose, 0.1-0.7 part of tartaric acid and 0.2-1.2 parts of carboxyl silicone oil. The disperse dye special for dyeing the polyester yarns has high grinding efficiency, good stability of a dispersion liquid and good dyeing performance on the polyester yarns; the dye is applied to polyester yarns, including filament yarns, medium yarns, short fibers, blended yarns and the like, can well solve the white powder (oligomer) phenomenon of the dyed yarns after dyeing, simultaneously improves the color fastness, can reach grade 4 or above, and has the function of cleaning a dye vat.
Description
Technical Field
The invention relates to the technical field of dye chemical industry, in particular to a special disperse dye for dyeing polyester yarns and a preparation method thereof.
Background
At present, the problems of dyeing and oligomer of cheese are particularly outstanding. In the dyeing process of the polyester cheese, the oligomer can be continuously separated from the polyester fiber and float in the dye liquor due to the increase of the dyeing temperature and the extension of the dyeing time. Through positive and negative rotation dyeing of the dyeing machine, the oligomer is continuously adsorbed on the inner layer and the surface layer of the cheese, and a large amount of white powder is formed after drying, so that a large amount of dyed yarns cannot be wound in a bobbin during winding in a later process, and serious waste is caused. Meanwhile, the oligomer can stain the wall of the cylinder, and can block a pipeline or a heat exchanger when the cylinder wall is serious, so that dyeing defects are easily caused, and the production safety problem is possibly caused.
Disclosure of Invention
Based on the situation, the invention aims to provide the disperse dye special for dyeing the polyester yarns and the preparation method thereof, and the problems can be effectively solved. The disperse dye special for dyeing the polyester yarns is prepared by selecting raw materials, optimizing the content of each raw material, and selecting the disperse dye, the diphenylformamide, the sodium chlorite, the styrene maleic anhydride copolymer, the sulfoethyl cellulose, the carboxymethyl cellulose, the tartaric acid and the carboxyl silicone oil in proper proportion, so that the raw materials are matched with one another and are mutually cooperated, the advantages of the raw materials are fully exerted, the raw materials are mutually supplemented and mutually promoted, and the prepared disperse dye special for dyeing the polyester yarns is high in grinding efficiency, good in dispersion stability and good in dyeing performance of the polyester yarns; the dye is applied to polyester yarns, including filament yarns, medium yarns, short fibers, blended yarns and the like, can well solve the white powder (oligomer) phenomenon of the dyed yarns after dyeing, simultaneously improves the color fastness, can reach grade 4 or above, and has the function of cleaning a dye vat.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the special disperse dye for dyeing the polyester yarns is prepared from the following raw materials in parts by weight:
70-98 parts of disperse dye, 0.5-6 parts of diphenylformamide, 2-30 parts of sodium chlorite, 0.8-4 parts of styrene maleic anhydride copolymer, 0.3-2 parts of sulfonic acid ethyl cellulose, 0.2-1.6 parts of carboxymethyl cellulose, 0.1-0.7 part of tartaric acid and 0.2-1.2 parts of carboxyl silicone oil.
The invention also provides a preparation method of the special disperse dye for dyeing the polyester yarns, which comprises the following steps:
A. adding disperse dye, diphenylformamide and sodium chlorite into an enclosed stirrer, closing a cover, starting the stirrer, heating to 42-44 ℃, and stirring for 70-100 min;
the temperature of 42-44 ℃ is controlled, so that the crystal form transformation of the disperse dye is facilitated under the introduction condition of the diphenylformamide, and the grinding efficiency, the dispersion stability and the dyeing performance of the special disperse dye for dyeing the polyester yarns are greatly improved.
B. Then stopping heating/keeping constant temperature, adding styrene maleic anhydride copolymer, sulfonic acid ethyl cellulose, carboxymethyl cellulose, tartaric acid and carboxyl silicone oil under the condition of closing a cover and sealing, and continuously stirring to room temperature; and obtaining the disperse dye special for dyeing the polyester yarns.
The disperse dye special for dyeing the polyester yarns is prepared by selecting raw materials, optimizing the content of each raw material, and selecting the disperse dye, the diphenylformamide, the sodium chlorite, the styrene maleic anhydride copolymer, the sulfoethyl cellulose, the carboxymethyl cellulose, the tartaric acid and the carboxyl silicone oil in proper proportion, so that the raw materials are matched with one another and are mutually cooperated, the advantages of the raw materials are fully exerted, the raw materials are mutually supplemented and mutually promoted, and the prepared disperse dye special for dyeing the polyester yarns is high in grinding efficiency, good in dispersion stability and good in dyeing performance of the polyester yarns; the dyeing agent is applied to polyester yarns, including filament yarns, medium yarns, short fibers, blended yarns and the like, can well meet the color requirement of the polyester yarns (clothes) after dyeing, has no powdery mildew (oligomer) phenomenon, and can be free of reduction cleaning.
When the disperse dye special for dyeing the polyester yarns is applied to the polyester yarns, a dyeing machine used for dyeing the polyester yarns for a long time can reduce or eliminate the contamination or scaling of the inner walls of dye vats such as vat walls, pipelines, heat exchangers and the like.
The disperse dye special for dyeing the polyester yarns is applied to dyeing the polyester yarns, has various color fastness reaching 4 grades or above, has excellent color fastness indexes, can well meet the requirements of polyester yarn clothes, and has wide market application prospect.
Preferably, the special disperse dye for dyeing the polyester yarns comprises the following raw materials in parts by weight: 78-88 parts of disperse dye, 2.7-4.5 parts of diphenylformamide, 15-23 parts of sodium chlorite, 1.8-3.4 parts of styrene maleic anhydride copolymer, 0.9-1.5 parts of sulfonic acid ethyl cellulose, 0.7-1.3 parts of carboxymethyl cellulose, 0.25-0.55 part of tartaric acid and 0.45-0.95 part of carboxyl silicone oil.
Preferably, the special disperse dye for dyeing the polyester yarns comprises the following raw materials in parts by weight: 83 parts of disperse dye, 3.6 parts of diphenylformamide, 19 parts of sodium chlorite, 2.5 parts of styrene maleic anhydride copolymer, 1.2 parts of sulfonic acid ethyl cellulose, 1 part of carboxymethyl cellulose, 0.42 part of tartaric acid and 0.7 part of carboxyl silicone oil.
The disperse dye may be all types of disperse dyes used on the market.
Preferably, the disperse dye is at least one of c.i. disperse yellow 66, c.i. disperse red 73 and disperse blue E-4 RN.
The present invention is preferably at least one of c.i. disperse yellow 66, c.i. disperse red 73, and disperse blue E-4 RN; through a large number of experiments, the inventor finds that the disperse dye can generate crystal form transformation under the condition of introducing the diphenylformamide, so that the grinding efficiency, the dispersion liquid stability and the dyeing performance of the special disperse dye for dyeing the polyester yarns are greatly improved; in addition, the disperse dye can be selected to greatly improve the dyeing performance under the condition of introducing sodium chlorite, so that the disperse dye special for dyeing the polyester yarns is applied to the polyester yarns, including filaments, medium filaments, staple fibers, blended yarns and the like, and after dyeing, the disperse dye can well meet the color requirement of the polyester yarns (clothes), has no white powder (oligomer) phenomenon, and can be free from reduction cleaning; when the dye is applied to polyester yarns, the dye is applied to a dyeing machine for dyeing for a long time, so that the contamination or scaling of the inner walls of dye vats such as vat walls, pipelines, heat exchangers and the like can be reduced or eliminated; when the dye is applied to dyeing of polyester yarns, all color fastness reaches 4 levels or above, and all color fastness indexes are excellent; and the C.I. disperse yellow 66, the C.I. disperse red 73 and the disperse blue E-4RN are compatible with each other, can be configured into various required colors, can well meet the color requirement of polyester yarns (clothes), and can well meet the requirement of the polyester yarns (clothes).
Preferably, the content of the maleic anhydride in the styrene maleic anhydride copolymer is 38.5-41.8%.
Preferably, the carboxymethyl cellulose is carboxymethyl cellulose CM 41.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the disperse dye special for dyeing the polyester yarns is prepared by selecting raw materials, optimizing the content of each raw material, and selecting the disperse dye, the diphenylformamide, the sodium chlorite, the styrene maleic anhydride copolymer, the sulfoethyl cellulose, the carboxymethyl cellulose, the tartaric acid and the carboxyl silicone oil in proper proportion, so that the raw materials are matched with one another and are mutually cooperated, the advantages of the raw materials are fully exerted, the raw materials are mutually supplemented and mutually promoted, and the prepared disperse dye special for dyeing the polyester yarns is high in grinding efficiency, good in dispersion stability and good in dyeing performance of the polyester yarns; the dyeing agent is applied to polyester yarns, including filament yarns, medium yarns, short fibers, blended yarns and the like, can well meet the color requirement of the polyester yarns (clothes) after dyeing, has no powdery mildew (oligomer) phenomenon, and can be free of reduction cleaning.
When the disperse dye special for dyeing the polyester yarns is applied to the polyester yarns, a dyeing machine used for dyeing the polyester yarns for a long time can reduce or eliminate the contamination or scaling of the inner walls of dye vats such as vat walls, pipelines, heat exchangers and the like.
The disperse dye special for dyeing the polyester yarns is applied to dyeing the polyester yarns, has various color fastness reaching 4 grades or above, has excellent color fastness indexes, can well meet the requirements of polyester yarn clothes, and has wide market application prospect.
The raw materials of the special disperse dye for dyeing the polyester yarn are added with disperse dye, diphenylformamide, sodium chlorite, styrene maleic anhydride copolymer, sulfonic acid ethyl cellulose, carboxymethyl cellulose, tartaric acid and carboxyl silicone oil in proper proportion.
The disperse dye is preferably at least one of c.i. disperse yellow 66, c.i. disperse red 73 and disperse blue E-4 RN; through a large number of experiments, the inventor finds that the disperse dye can generate crystal form transformation under the condition of introducing the diphenylformamide, so that the grinding efficiency, the dispersion liquid stability and the dyeing performance of the special disperse dye for dyeing the polyester yarns are greatly improved; in addition, the disperse dye can be selected to greatly improve the dyeing performance under the condition of introducing sodium chlorite, so that the disperse dye special for dyeing the polyester yarns is applied to the polyester yarns, including filaments, medium filaments, staple fibers, blended yarns and the like, and after dyeing, the disperse dye can well meet the color requirement of the polyester yarns (clothes), has no white powder (oligomer) phenomenon, and can be free from reduction cleaning; when the dye is applied to polyester yarns, the dye is applied to a dyeing machine for dyeing for a long time, so that the contamination or scaling of the inner walls of dye vats such as vat walls, pipelines, heat exchangers and the like can be reduced or eliminated; when the dye is applied to dyeing of polyester yarns, all color fastness reaches 4 levels or above, and all color fastness indexes are excellent; and the C.I. disperse yellow 66, the C.I. disperse red 73 and the disperse blue E-4RN are compatible with each other, can be configured into various required colors, can well meet the color requirement of polyester yarns (clothes), and can well meet the requirement of the polyester yarns (clothes).
The introduction of the styrene maleic anhydride copolymer and the sulfonic acid ethyl cellulose can play a good role in dispersing all raw materials of the special disperse dye for dyeing the polyester yarns, and the styrene maleic anhydride copolymer and the sulfonic acid ethyl cellulose have good synergistic effect, so that the grinding efficiency and the dispersion stability of the special disperse dye for dyeing the polyester yarns are greatly improved, the styrene maleic anhydride copolymer and the sulfonic acid ethyl cellulose have good affinity to the polyester yarns, the bonding strength of the special disperse dye for dyeing the polyester yarns and the polyester yarns can be improved, and the color fastness of the special disperse dye for dyeing the polyester yarns is improved.
The carboxymethyl cellulose mainly plays a role in good thickening, has good affinity for the polyester yarns, and can further improve the bonding strength of the special disperse dye for dyeing the polyester yarns and the polyester yarns.
Tartaric acid mainly plays a good color fixing role, and can further improve the color fastness of the special disperse dye for dyeing polyester yarns.
The introduction of the carboxyl silicone oil has good dispersion compatibility in various raw materials of the disperse dye special for dyeing the polyester yarns, and the introduction of the carboxyl silicone oil can greatly improve the friction color fastness of the disperse dye special for dyeing the polyester yarns and can also improve the water resistance of the disperse dye special for dyeing the polyester yarns, thereby improving the color fastness to washing of the disperse dye special for dyeing the polyester yarns.
The preparation method has simple process and simple and convenient operation, and saves manpower and equipment cost.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent.
The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials, unless otherwise indicated, are conventionally obtained commercially or prepared by conventional methods.
Example 1:
the special disperse dye for dyeing the polyester yarns is prepared from the following raw materials in parts by weight:
70-98 parts of disperse dye, 0.5-6 parts of diphenylformamide, 2-30 parts of sodium chlorite, 0.8-4 parts of styrene maleic anhydride copolymer, 0.3-2 parts of sulfonic acid ethyl cellulose, 0.2-1.6 parts of carboxymethyl cellulose, 0.1-0.7 part of tartaric acid and 0.2-1.2 parts of carboxyl silicone oil.
The embodiment also provides a preparation method of the special disperse dye for dyeing polyester yarns, which comprises the following steps:
A. adding disperse dye, diphenylformamide and sodium chlorite into an enclosed stirrer, closing a cover, starting the stirrer, heating to 42-44 ℃, and stirring for 70-100 min;
B. then stopping heating/keeping constant temperature, adding styrene maleic anhydride copolymer, sulfonic acid ethyl cellulose, carboxymethyl cellulose, tartaric acid and carboxyl silicone oil under the condition of closing a cover and sealing, and continuously stirring to room temperature; and obtaining the disperse dye special for dyeing the polyester yarns.
In this embodiment, the disperse dye specially used for dyeing the polyester yarn preferably, but not limited to, comprises the following raw materials in parts by weight: 78-88 parts of disperse dye, 2.7-4.5 parts of diphenylformamide, 15-23 parts of sodium chlorite, 1.8-3.4 parts of styrene maleic anhydride copolymer, 0.9-1.5 parts of sulfonic acid ethyl cellulose, 0.7-1.3 parts of carboxymethyl cellulose, 0.25-0.55 part of tartaric acid and 0.45-0.95 part of carboxyl silicone oil.
In this embodiment, the disperse dye specially used for dyeing the polyester yarn preferably, but not limited to, comprises the following raw materials in parts by weight: 83 parts of disperse dye, 3.6 parts of diphenylformamide, 19 parts of sodium chlorite, 2.5 parts of styrene maleic anhydride copolymer, 1.2 parts of sulfonic acid ethyl cellulose, 1 part of carboxymethyl cellulose, 0.42 part of tartaric acid and 0.7 part of carboxyl silicone oil.
In the present embodiment, the disperse dye is preferably, but not limited to, at least one of c.i. disperse yellow 66, c.i. disperse red 73, and disperse blue E-4 RN.
In the embodiment, the content of the maleic anhydride in the styrene maleic anhydride copolymer is preferably, but not limited to, 38.5 to 41.8%.
In the present embodiment, the carboxymethyl cellulose is preferably, but not limited to, carboxymethyl cellulose CM 41.
Example 2:
the preparation method of the disperse dye special for dyeing the polyester yarns comprises the following steps:
A. adding disperse dye, diphenylformamide and sodium chlorite into a closed stirrer, closing a cover, starting the stirrer, heating to 42 ℃, and stirring for 100 min;
B. then stopping heating/keeping constant temperature, adding styrene maleic anhydride copolymer, sulfonic acid ethyl cellulose, carboxymethyl cellulose, tartaric acid and carboxyl silicone oil under the condition of closing a cover and sealing, and continuously stirring to room temperature; and obtaining the disperse dye special for dyeing the polyester yarns.
In this embodiment, the disperse dye special for dyeing the polyester yarn comprises the following raw materials in parts by weight: 78 parts of disperse dye, 2.7 parts of diphenylformamide, 15 parts of sodium chlorite, 1.8 parts of styrene maleic anhydride copolymer, 0.9 part of sulfonic acid ethyl cellulose, 0.7 part of carboxymethyl cellulose, 0.25 part of tartaric acid and 0.45 part of carboxyl silicone oil.
In this example, the disperse dye was c.i. disperse yellow 66.
In this example, the styrene maleic anhydride copolymer had a maleic anhydride content of 38.5%.
In this example, the carboxymethyl cellulose is carboxymethyl cellulose CM 41.
Example 3:
the preparation method of the disperse dye special for dyeing the polyester yarns comprises the following steps:
A. adding disperse dye, diphenylformamide and sodium chlorite into a closed stirrer, closing a cover, starting the stirrer, heating to 44 ℃, and stirring for 70 min;
B. then stopping heating/keeping constant temperature, adding styrene maleic anhydride copolymer, sulfonic acid ethyl cellulose, carboxymethyl cellulose, tartaric acid and carboxyl silicone oil under the condition of closing a cover and sealing, and continuously stirring to room temperature; and obtaining the disperse dye special for dyeing the polyester yarns.
In this embodiment, the disperse dye special for dyeing the polyester yarn comprises the following raw materials in parts by weight: 88 parts of disperse dye, 4.5 parts of diphenylformamide, 23 parts of sodium chlorite, 3.4 parts of styrene maleic anhydride copolymer, 1.5 parts of sulfonic acid ethyl cellulose, 1.3 parts of carboxymethyl cellulose, 0.55 part of tartaric acid and 0.95 part of carboxyl silicone oil.
In this example, the disperse dye is disperse blue E-4 RN.
In this example, the styrene maleic anhydride copolymer had a maleic anhydride content of 41.8%.
In this example, the carboxymethyl cellulose is carboxymethyl cellulose CM 41.
Example 4:
the preparation method of the disperse dye special for dyeing the polyester yarns comprises the following steps:
A. adding disperse dye, diphenylformamide and sodium chlorite into a closed stirrer, closing a cover, starting the stirrer, heating to 43 ℃, and stirring for 85 min;
B. then stopping heating/keeping constant temperature, adding styrene maleic anhydride copolymer, sulfonic acid ethyl cellulose, carboxymethyl cellulose, tartaric acid and carboxyl silicone oil under the condition of closing a cover and sealing, and continuously stirring to room temperature; and obtaining the disperse dye special for dyeing the polyester yarns.
In this embodiment, the disperse dye special for dyeing the polyester yarn comprises the following raw materials in parts by weight: 83 parts of disperse dye, 3.6 parts of diphenylformamide, 19 parts of sodium chlorite, 2.5 parts of styrene maleic anhydride copolymer, 1.2 parts of sulfonic acid ethyl cellulose, 1 part of carboxymethyl cellulose, 0.42 part of tartaric acid and 0.7 part of carboxyl silicone oil.
In this embodiment, the ratio of the dispersed dye is 1: 0.8: 1.4 c.i. disperse yellow 66, c.i. disperse red 73 and disperse blue E-4 RN.
In this example, the styrene maleic anhydride copolymer had a maleic anhydride content of 40.4%.
In this example, the carboxymethyl cellulose is carboxymethyl cellulose CM 41.
Comparative example 1:
the difference from example 4 is that only the disperse dye was used, and there were no other components, and the others were the same as example 4.
Comparative example 2:
the difference from example 4 is that there is no diphenylformamide, and the rest is the same as example 4.
Comparative example 3:
the difference from example 4 is that sodium chlorite is not present, and the rest is the same as example 4.
Comparative example 4:
the difference from example 4 is that styrene maleic anhydride copolymer and sulfonic acid ethyl cellulose are not contained, and the other steps are the same as example 4.
Comparative example 5:
the difference from example 4 is that no carboxyl silicone oil is present, and the other is the same as example 4.
The performance tests of the disperse dyes obtained in the examples 2 to 4 of the present invention and the disperse dyes obtained in the comparative examples 1 to 5 are performed, that is, the disperse dyes obtained in the examples 2 to 4 of the present invention and the disperse dyes obtained in the comparative examples 1 to 5 are respectively dyed by the same dyeing process, and then the performance tests of the dyed polyester yarns are performed, and the test results are shown in table 1.
TABLE 1
As can be seen from the above table, the disperse dye special for dyeing the polyester yarns is applied to dyeing the polyester yarns, has various color fastness reaching the level of 4 or above, has excellent color fastness indexes, can well meet the requirements of polyester yarn clothes, and has wide market application prospect.
In addition, the disperse dye special for dyeing the polyester yarns has high grinding efficiency, good stability of a dispersion liquid and good dyeing performance on the polyester yarns; the dyeing agent is applied to polyester yarns, including filament yarns, medium yarns, short fibers, blended yarns and the like, can well meet the color requirement of the polyester yarns (clothes) after dyeing, has no powdery mildew (oligomer) phenomenon, and can be free of reduction cleaning.
When the disperse dye special for dyeing the polyester yarns is applied to the polyester yarns, a dyeing machine used for dyeing the polyester yarns for a long time can reduce or eliminate the contamination or scaling of the inner walls of dye vats such as vat walls, pipelines, heat exchangers and the like.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (7)
1. The special disperse dye for dyeing the polyester yarns is characterized by being prepared from the following raw materials in parts by weight:
70-98 parts of disperse dye, 0.5-6 parts of diphenylformamide, 2-30 parts of sodium chlorite, 0.8-4 parts of styrene maleic anhydride copolymer, 0.3-2 parts of sulfonic acid ethyl cellulose, 0.2-1.6 parts of carboxymethyl cellulose, 0.1-0.7 part of tartaric acid and 0.2-1.2 parts of carboxyl silicone oil.
2. The preparation method of the special disperse dye for dyeing polyester yarns as claimed in claim 1, which is characterized by comprising the following steps:
A. adding disperse dye, diphenylformamide and sodium chlorite into an enclosed stirrer, closing a cover, starting the stirrer, heating to 42-44 ℃, and stirring for 70-100 min;
B. then stopping heating/keeping constant temperature, adding styrene maleic anhydride copolymer, sulfonic acid ethyl cellulose, carboxymethyl cellulose, tartaric acid and carboxyl silicone oil under the condition of closing a cover and sealing, and continuously stirring to room temperature; and obtaining the disperse dye special for dyeing the polyester yarns.
3. The preparation method of the disperse dye special for dyeing the polyester yarns as claimed in claim 2, wherein the disperse dye special for dyeing the polyester yarns comprises the following raw materials in parts by weight: 78-88 parts of disperse dye, 2.7-4.5 parts of diphenylformamide, 15-23 parts of sodium chlorite, 1.8-3.4 parts of styrene maleic anhydride copolymer, 0.9-1.5 parts of sulfonic acid ethyl cellulose, 0.7-1.3 parts of carboxymethyl cellulose, 0.25-0.55 part of tartaric acid and 0.45-0.95 part of carboxyl silicone oil.
4. The preparation method of the disperse dye special for dyeing the polyester yarns as claimed in claim 2, wherein the disperse dye special for dyeing the polyester yarns comprises the following raw materials in parts by weight: 83 parts of disperse dye, 3.6 parts of diphenylformamide, 19 parts of sodium chlorite, 2.5 parts of styrene maleic anhydride copolymer, 1.2 parts of sulfonic acid ethyl cellulose, 1 part of carboxymethyl cellulose, 0.42 part of tartaric acid and 0.7 part of carboxyl silicone oil.
5. The method for preparing the disperse dye special for dyeing the polyester yarns according to claim 2, wherein the disperse dye is at least one of C.I. disperse yellow 66, C.I. disperse red 73 and disperse blue E-4 RN.
6. The preparation method of the special disperse dye for dyeing polyester yarns according to claim 2, wherein the content of maleic anhydride in the styrene maleic anhydride copolymer is 38.5-41.8%.
7. The method for preparing the disperse dye special for dyeing the polyester yarns as claimed in claim 2, wherein the carboxymethyl cellulose is carboxymethyl cellulose CM 41.
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Cited By (1)
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| WO2024003069A3 (en) * | 2022-06-27 | 2024-02-29 | Huntsman Textile Effects (Germany) Gmbh | Method for dyeing polyester-containing textile material |
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