CN114921979A - Supercritical CO 2 Method for printing with auxiliary fluorescent dye - Google Patents

Supercritical CO 2 Method for printing with auxiliary fluorescent dye Download PDF

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Publication number
CN114921979A
CN114921979A CN202210648119.4A CN202210648119A CN114921979A CN 114921979 A CN114921979 A CN 114921979A CN 202210648119 A CN202210648119 A CN 202210648119A CN 114921979 A CN114921979 A CN 114921979A
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printing
paste
supercritical
fluorescent dye
dyeing
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CN114921979B (en
Inventor
郑环达
郑来久
李胜男
于佐君
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Dalian Polytechnic University
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Dalian Polytechnic University
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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
    • D06P1/94—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 dyes dissolved in solvents which are in the supercritical state
    • 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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
    • D06P1/48—Derivatives of carbohydrates
    • D06P1/50—Derivatives of cellulose
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Coloring (AREA)

Abstract

The invention discloses supercritical CO 2 A method for assisting fluorescent dye printing belongs to the technical field of textile printing and dyeing. The invention uses supercritical CO 2 The fluid is used as a dyeing medium, and the printing paste prepared from the compound thickener containing sodium carboxymethyl cellulose thickener and guar gum thickener and fluorescent dye is used for printing the textile. The invention utilizes supercritical CO 2 The fluid-assisted fluorescent dye is used for printing the meta-aramid, and the method has the advantages of no carrier, no extra additive, no need of multiple times of washing and eluting the carrier, simple process, environmental protection and no pollution; at the same timeThe fluorescent high-color-depth printed meta-aramid fabric can be obtained, and the requirements of warning materials can be met.

Description

Supercritical CO 2 Method for printing with auxiliary fluorescent dye
Technical Field
The invention belongs to the technical field of textile printing and dyeing, and particularly relates to supercritical CO 2 A method for printing with an auxiliary fluorescent dye.
Background
The meta-aramid fiber is a high-temperature resistant fiber variety which is developed early, applied widely, high in yield and fast in development, and the total amount of the meta-aramid fiber is the second place of special fiber. By breaking through ten thousand tons of meta-aramid productivity in China at present, along with the increase of fiber productivity and the expansion of application fields, the application amount of meta-aramid products in the field of protective clothing is continuously improved, and the requirements of obtaining dyed meta-aramid products through printing and dyeing processing are remarkably increased if the meta-aramid products are used for smelting or oil refining protective clothing, antistatic work clothing, military and police training clothing, sportswear and racing clothing. Because amide chains among meta-aramid molecules form a large number of highly oriented and strong hydrogen bonds, the polymeric macromolecules of the meta-aramid have strong interaction. Especially, hydrogen bonds in the crystal are arranged on two planes to form a three-dimensional stable aggregation structure, so that high-level intermolecular accumulation and supernormal cohesive energy are caused. However, in the printing and dyeing process, the corresponding compact molecular structure and high crystallinity hinder the entry of dye molecules, so that the dyeing and printing are extremely difficult to realize, and the application of the meta-aramid in the clothing field is greatly limited by the problems. Therefore, in order to make the m-aramid fiber with excellent performance have higher application value, scholars at home and abroad make a lot of researches on the problem that the m-aramid fiber is difficult to print and dye.
The method comprises the following steps of (1) steaming cationic dye 1%, carrier 2%, N-methyl pyrrolidone 5%, pH value 5-6 and 110 ℃ for 20min, wherein the home-made novel carrier is used for cationic dye printing [ J ] printing and dyeing, 2019,45(22):25-28.) of the meta-aramid fabric, and the printed fabric has bright color and clear outline; the dry rubbing fastness is grade 4, the wet rubbing fastness is grade 3-4, and the washing fastness is above grade 4. However, ideal color depth is difficult to obtain in the printing of aramid fabrics by the traditional method, a carrier is added in printing paste to improve the K/S value and the color fastness of the printed fabrics, the carrier for printing and dyeing the aramid fabrics is mostly toxic or has strong pungent smell, and the waste water generated in the dyeing process contains a large amount of various auxiliaries, unused dyes and carriers, thereby causing serious environmental problems. In order to solve the problem of textile printing and dyeing wastewater, the research and exploration of the aramid fiber clean printing and dyeing method are of great significance.
Supercritical CO 2 Fluid dyeing is a novel environment-friendly dyeing technology, and compared with aqueous medium dyeing, the fluid dyeing technology has the advantages that CO is adopted 2 Non-toxic, non-inflammable, low-cost, dye and CO 2 Can be recycled, has no emission and pollution, has the advantages of high dyeing speed and high dyeing rate, and fully embodies the modern processing concepts of cleanness, greenness and environmental protection. To date, no supercritical CO is found 2 The related report of printing aramid fabric with auxiliary fluorescent dye.
Disclosure of Invention
In view of this, the present invention provides a supercritical CO 2 Method for printing with auxiliary fluorescent dye by supercritical CO 2 The fluid-assisted fluorescent dye is used for printing the meta-aramid fiber, and the method has the advantages of no carrier, no extra additive, no need of multiple times of washing and eluting the carrier, simple process, environmental protection and no pollution.
The invention provides the following technical scheme:
the invention provides supercritical CO 2 The method for printing by using auxiliary fluorescent dye is supercritical CO 2 The fluid is used as a dyeing medium, and the printing paste prepared from the compound thickener containing sodium carboxymethylcellulose paste and guar gum paste and fluorescent dye is used for printing the textile fabric.
Further, the fluorescent dye is one or the combination of two of fluorescent mauve 3R and fluorescent yellow X-10 GFF.
Furthermore, the textile fabric is made of meta-aramid.
Further, the method mainly comprises the following steps:
(1) placing the textile fabric printed with patterns by using the printing paste in supercritical CO 2 The fluid dyeing device is internally sealed;
(2) CO stored in a storage tank 2 Condensing the waste water into liquid by a condenser, pressurizing by a high-pressure pump, and heating to supercritical state under the action of a preheaterCritical CO 2 And (4) enabling the fluid to flow into the dyeing device to print the textile, opening the exhaust valve after printing is finished, and taking out the printed textile after the gas in the dyeing device is emptied.
Further, after the dyeing device is sealed in the step (1), introducing CO 2 And exhausting air in the device.
Further, the dye content of the printing paste in the step (1) is 0.5-2.5%.
Further, the printing conditions in the step (2) are as follows: printing at 50-200 deg.C under 5-30MPa for 10-200 min.
Further, the printing conditions in the step (2) are as follows: printing at 80-180 deg.C under 8-24MPa for 20-100 min.
Further, the preparation method of the compound paste mainly comprises the following steps:
1) respectively preparing sodium carboxymethylcellulose aqueous solution with solid content of 2-6%, guar gum aqueous solution and sodium alginate aqueous solution;
2) stirring at 40-100 deg.C until the material is completely puffed into a semitransparent uniform system without solid particles to obtain sodium carboxymethylcellulose paste, guar gum paste and sodium alginate paste;
3) mixing the sodium carboxymethylcellulose paste prepared in the step 2), the guar gum paste and the sodium alginate paste according to the mass ratio of (20-80) to (80-20): (0-10), stirring uniformly, standing to fully mix and expand the paste to obtain the compound paste.
Further, in the step 3), the sodium carboxymethyl cellulose paste, the guar gum paste and the sodium alginate paste are mixed according to the mass ratio of (50-70) to (30-50): (0-10) in the ratio.
The invention has the following beneficial effects:
the invention utilizes supercritical CO 2 The fluid-assisted fluorescent dye is used for printing the meta-aramid, and the method has the advantages of no carrier, no extra additive, no need of multiple times of washing and eluting the carrier, simple process, environmental protection and no pollution; according to GB/T3920-1-2008, textile color fastness to washing test: test evaluation shows that the dry and wet rubbing color fastness of the printed textile is more than grade 4; the color fastness to washing is more than 4 grades, and meanwhile, the high-color-depth printed meta-aramid fabric with fluorescence can be obtained, and the requirements of warning materials can be met.
Detailed Description
The present invention is described in detail below with reference to examples, but the embodiments of the present invention are not limited thereto, and it is obvious that the examples in the following description are only some examples of the present invention, and it is obvious for those skilled in the art to obtain other similar examples without inventive exercise and falling into the scope of the present invention.
Example 1
For supercritical CO 2 The preparation method of the compound paste for printing the system fabric mainly comprises the following steps:
(1) respectively and uniformly pouring sodium carboxymethylcellulose and guar gum into deionized water to prepare sodium carboxymethylcellulose aqueous solution and guar gum aqueous solution with solid contents of 2%;
(2) stirring with a magnetic stirrer at 50 deg.C for about 40min until the paste is completely puffed into a semitransparent uniform system without solid particles to obtain sodium carboxymethylcellulose paste and guar gum paste;
(3) and (3) mixing the sodium carboxymethyl cellulose paste prepared in the step (2) with the guar gum paste according to the proportion of 60:40, uniformly stirring, standing to fully mix and expand the paste to obtain the compound paste.
Example 2
Supercritical CO 2 A method of assisted fluorescent dye printing, the method comprising: mixing 1% of fluorescent mauve 3R dye and the compound paste of sodium carboxymethylcellulose and guar gum prepared in example 1 according to the proportion of 60:40, stirring until the dye is dissolved to prepare printing paste (the dye accounts for 1% of the paste), printing patterns on the meta-aramid fabric by using the paste, and placing the meta-aramid fabric in supercritical CO 2 Treating the fabric to be dyed in a fluid dyeing device at 160 deg.C and 8MPa for 40min to obtain a band with a color depth of 8.66The sharpness of the fluorescent meta-aramid printed fabric is 99%, and the pattern contour is clear; the air permeability is 681.8 mm/s; the warp bending length is 2.90cm, the weft bending length is 3.10cm, and the warp bending rigidity is 3.58N/mm 2 And the weft bending rigidity is 4.09N/mm 2 (ii) a The color fastness to dry/wet rubbing is 5/4-5 grades; the color fastness to washing is grade 4.
Example 3
Supercritical CO 2 A method of assisted fluorescent dye printing, the method comprising: mixing fluorescein X-10GFF with the compounded paste of sodium carboxymethylcellulose and guar gum prepared in the ratio of 60:40 in example 1 in a content of 1% until the dye is dissolved to prepare printing paste (the dye accounts for 1% of the paste), printing the pattern on the meta-aramid fabric by using the paste, and placing the meta-aramid fabric in supercritical CO 2 Treating the fabric to be dyed in a fluid dyeing device for 40min under the conditions of 180 ℃ and 8MPa to obtain a yellow m-aramid printed fabric with the color depth of 4.88 and fluorescence, wherein the sharpness of the printed fabric is 99 percent, and the pattern outline is clear; the air permeability is 679.2 mm/s; warp bending length 3.14cm, weft bending length 3.25cm, warp bending stiffness 3.78N/mm 2 Bending rigidity in weft direction of 3.98N/mm 2 (ii) a The dry/wet rubbing fastness is 5/4-5 grade; the color fastness to washing is grade 4.
Example 4
Supercritical CO 2 A method of assisted fluorescent dye printing, the method comprising: 0.5 percent of fluorescent mauve 3R dye and 60:40 of carboxymethyl cellulose sodium and guar gum compounded paste prepared in the example 1 are stirred until the dye is dissolved to prepare printing paste (the dye accounts for 0.5 percent of the paste), the aramid fiber fabric printed with patterns by the paste is placed in a supercritical CO 2 Treating the fabric to be dyed in a fluid dyeing device for 40min under the conditions of 180 ℃ and 8MPa to obtain a fluorescent meta-aramid printed fabric with the color depth of 5.5, wherein the sharpness of the printed fabric is 99 percent, and the pattern outline is clear; the dry/wet rubbing fastness is 5/4-5 grade; the color fastness to washing is grade 4.
Example 5
Supercritical CO 2 A method of assisted fluorescent dye printing, the method comprising:0.5 percent of fluorescent mauve 3R dye and 60:40 of carboxymethyl cellulose sodium and guar gum compounded paste prepared in the example 1 are stirred until the dye is dissolved to prepare printing paste (the dye accounts for 0.5 percent of the paste), the aramid fiber fabric printed with patterns by the paste is placed in a supercritical CO 2 Treating the fabric to be dyed in a fluid dyeing device for 40min under the conditions of 160 ℃ and 8MPa to obtain a fluorescent meta-aramid printed fabric with the color depth of 5.65, wherein the sharpness of the printed fabric is 99 percent, and the pattern outline is clear; the dry/wet rubbing fastness is 5/4-5 grade; the color fastness to washing is grade 4.
Example 6
Supercritical CO 2 A method of assisted fluorescent dye printing, the method comprising: 0.5 percent of fluorescein X-10GFF and the compound thickener of sodium carboxymethylcellulose and guar gum prepared in the embodiment 1 with the proportion of 60:40 are stirred until the dye is dissolved to prepare printing paste (the dye accounts for 0.5 percent of the paste), the meta-aramid fabric printed with patterns by the paste is placed in a supercritical CO 2 Treating the fabric to be dyed in a fluid dyeing device for 40min under the conditions of 180 ℃ and 8MPa to obtain yellow m-aramid printed fabric with the color depth of 3.96 and fluorescence, wherein the sharpness of the printed fabric is 99 percent, and the pattern outline is clear; the dry/wet rubbing fastness is 5/4-5 grade; the color fastness to washing is grade 4.
Example 7
Supercritical CO 2 A method of assisted fluorescent dye printing, the method comprising: 0.5 percent of fluorescein X-10GFF and the sodium carboxymethylcellulose and guar gum composite paste which is prepared in the embodiment 1 and has the ratio of 60:40 are used for preparing printing paste (the dye accounts for 0.5 percent of the paste), the meta-aramid fabric printed with patterns by the paste is placed in a supercritical CO 2 Treating the fabric to be dyed in a fluid dyeing device for 40min under the conditions of 160 ℃ and 8MPa to obtain yellow m-aramid printed fabric with the color depth of 3.93 and fluorescence, wherein the sharpness of the printed fabric is 99 percent, and the pattern outline is clear; the dry/wet rubbing fastness is 5/4-5 grade; the color fastness to washing is grade 4.
Example 8
Supercritical CO 2 Assistance ofA method of printing with a fluorescent dye, the method comprising: preparing fluorescent mauve 3R dye color paste (water as solvent) with the content of 1 percent, printing a pattern on the meta-aramid fabric by using the color paste, and placing the meta-aramid fabric in a supercritical CO 2 Treating the fabric to be dyed in a fluid dyeing device for 40min under the conditions of 160 ℃ and 8MPa to obtain a fluorescent meta-aramid printed fabric with the color depth of 0.65, wherein the sharpness of the printed fabric is 42%; the air permeability is 682.0 mm/s; the warp bending length is 3.00cm, the weft bending length is 3.20cm, and the warp bending rigidity is 3.62N/mm 2 Bending rigidity in weft direction of 4.19N/mm 2 (ii) a The color fastness to dry/wet rubbing is grade 1-2; the color fastness to washing is 1-2 grade.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.

Claims (8)

1. Supercritical CO 2 The method for printing with the auxiliary fluorescent dye is characterized in that the method adopts supercritical CO 2 The fluid is used as a dyeing medium, and the printing paste prepared from the compound thickener containing sodium carboxymethyl cellulose thickener and guar gum thickener and fluorescent dye is used for printing the textile.
2. The method of claim 1, wherein the fluorescent dye is one or a combination of fluorescent mauve 3R and fluorescent yellow X-10 GFF.
3. The method of claim 1, wherein the textile fabric is meta-aramid.
4. The method of claim 1, said method consisting essentially of the steps of:
(1) placing the textile fabric printed with patterns by using the printing paste in supercritical CO 2 The fluid dyeing device is internally sealed;
(2) CO stored in a storage tank 2 Condensing into liquid by a condenser, pressurizing by a high-pressure pump, and heating to supercritical state by a preheater to obtain supercritical CO 2 And (4) enabling the fluid to flow into the dyeing device to print the textile, opening the exhaust valve after printing is finished, and taking out the printed textile after the gas in the dyeing device is emptied.
5. The method according to claim 4, wherein after the dyeing apparatus is closed in step (1), CO is introduced 2 And exhausting air in the device.
6. The method according to claim 4, wherein the dye content in the printing paste in step (1) is 0.5-2.5%.
7. The method according to claim 4, wherein the printing conditions in step (2) are: printing at 50-200 deg.C under 5-30MPa for 10-200 min.
8. The method according to claim 1, wherein the preparation method of the built paste mainly comprises the following steps:
1) respectively preparing sodium carboxymethylcellulose aqueous solution with solid content of 2-6%, guar gum aqueous solution and sodium alginate aqueous solution;
2) stirring at 40-100 deg.C until the mixture is completely puffed into a semitransparent uniform system without solid particles to obtain sodium carboxymethylcellulose paste, guar gum paste and sodium alginate paste;
3) mixing the sodium carboxymethylcellulose paste prepared in the step 2), the guar gum paste and the sodium alginate paste according to the mass ratio of (20-80) to (80-20): (0-10), stirring uniformly, standing to fully mix and expand the paste to obtain the compound paste.
CN202210648119.4A 2022-06-08 2022-06-08 Supercritical CO 2 Method for assisting fluorescent dye printing Active CN114921979B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002371483A (en) * 2001-06-11 2002-12-26 Howa Kk Method for dyeing and dyed material dyed by using the same method
CN105862386A (en) * 2016-04-25 2016-08-17 东莞市联洲知识产权运营管理有限公司 Method for preparing fluorescent-yellow dacron-cotton shell fabric
CN106637777A (en) * 2016-11-21 2017-05-10 大连工业大学 Dye finishing agent kettle in supercritical carbon dioxide anhydrous dyeing and finishing equipment
CN113981717A (en) * 2021-09-26 2022-01-28 福建百宏聚纤科技实业有限公司 Polyester fiber fabric waterless printing process

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002371483A (en) * 2001-06-11 2002-12-26 Howa Kk Method for dyeing and dyed material dyed by using the same method
CN105862386A (en) * 2016-04-25 2016-08-17 东莞市联洲知识产权运营管理有限公司 Method for preparing fluorescent-yellow dacron-cotton shell fabric
CN106637777A (en) * 2016-11-21 2017-05-10 大连工业大学 Dye finishing agent kettle in supercritical carbon dioxide anhydrous dyeing and finishing equipment
CN113981717A (en) * 2021-09-26 2022-01-28 福建百宏聚纤科技实业有限公司 Polyester fiber fabric waterless printing process

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