CN114134729A - High color fastness process for cationic polyester/viscose blended dyed yarn - Google Patents
High color fastness process for cationic polyester/viscose blended dyed yarn Download PDFInfo
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- CN114134729A CN114134729A CN202111083046.0A CN202111083046A CN114134729A CN 114134729 A CN114134729 A CN 114134729A CN 202111083046 A CN202111083046 A CN 202111083046A CN 114134729 A CN114134729 A CN 114134729A
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- viscose blended
- water
- soaping
- dispersant
- dye
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- 229920000297 Rayon Polymers 0.000 title claims abstract description 45
- 229920000728 polyester Polymers 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 39
- 125000002091 cationic group Chemical group 0.000 title claims abstract description 37
- 230000008569 process Effects 0.000 title claims abstract description 37
- 239000002270 dispersing agent Substances 0.000 claims abstract description 76
- 239000000975 dye Substances 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 50
- 239000004744 fabric Substances 0.000 claims abstract description 42
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000001035 drying Methods 0.000 claims abstract description 28
- 239000000344 soap Substances 0.000 claims abstract description 27
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 25
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000004202 carbamide Substances 0.000 claims abstract description 25
- 239000000985 reactive dye Substances 0.000 claims abstract description 22
- 238000005406 washing Methods 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 18
- 239000008234 soft water Substances 0.000 claims abstract description 18
- 239000007864 aqueous solution Substances 0.000 claims abstract description 17
- 239000004753 textile Substances 0.000 claims abstract description 13
- 229960001484 edetic acid Drugs 0.000 claims abstract description 9
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 claims description 16
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 claims description 16
- 150000001768 cations Chemical class 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 9
- 229920000642 polymer Polymers 0.000 claims description 8
- 230000001105 regulatory effect Effects 0.000 claims description 8
- 229920005552 sodium lignosulfonate Polymers 0.000 claims description 8
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract description 18
- 238000004043 dyeing Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000982 direct dye Substances 0.000 abstract description 3
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 3
- 150000002500 ions Chemical class 0.000 abstract description 3
- 239000011347 resin Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 14
- 239000006210 lotion Substances 0.000 description 12
- 239000000835 fiber Substances 0.000 description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- 238000007639 printing Methods 0.000 description 5
- 239000002244 precipitate Substances 0.000 description 4
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 3
- 229910001424 calcium ion Inorganic materials 0.000 description 3
- 229910001425 magnesium ion Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 150000001447 alkali salts Chemical class 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000002738 chelating agent Substances 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000007730 finishing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013351 cheese Nutrition 0.000 description 1
- 230000009920 chelation Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
Classifications
-
- 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
- D06P1/38—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 reactive dyes
-
- 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
- D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
-
- 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
- D06P3/82—Textiles which contain different kinds of fibres
- D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
- D06P3/8223—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups
- D06P3/8228—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups using one kind of dye
-
- 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
-
- 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
Abstract
The invention relates to the technical field of textile dyeing and finishing, and discloses a high color fastness process for a cationic polyester/viscose blended dyed yarn, which comprises the following steps: s1, firstly, carrying out dye pretreatment on the raw material of the polyester/viscose blended dyed yarn; s2, adding soft water and a chelating dispersant into the treated cloth; s3, adding the prepared soft water and chelating dispersant into the mixed aqueous solution of the cationic polyester/viscose blended colored yarn raw material; s4, soaping the yarn dyed by the reactive dye with a soaping liquid composed of urea, ethylene diamine tetraacetic acid, hydrogen peroxide and water, sequentially washing with hot water and cold water, and drying; s5, drying the cloth washed by the soap in the S4, and fixing color; the adopted color fixing agent does not contain formaldehyde and heavy metal ions, has the same using effect as the traditional formaldehyde resin color fixing agent, and obviously improves the fastness to washing and wet treatment of direct dyes and reactive dyes.
Description
Technical Field
The invention relates to the technical field of textile dyeing and finishing, in particular to a high color fastness process of a cationic polyester/viscose blended dyed yarn.
Background
Color fastness is the degree of soiling of a moistened, colored fabric on white or light-colored fabrics after drying. The purpose of testing the color fastness is to know the dyeing or printing parts on the white bottom and the light bottom or stripe fabric, and the condition that the dye of the dyeing part migrates to the white bottom or the light bottom due to washing or rain and the like of different color shade combined products. In the test, one end of the sample was immersed in water containing a reagent, and the degree of color contamination due to the rising action of water was measured and evaluated by a stained gray card. Textiles with poor color fastness are easy to be stained in the storage and use processes, and the attractiveness of the textiles is seriously affected; moreover, dyes that are exuded from textiles with unacceptable color fastness during use can easily enter the human body through skin, saliva, etc., and cause an estimated-difficult hazard to the health of the user.
The existing high color fastness to cationic polyester/viscose blended dyed yarns is poor, most of the existing methods for improving the color fastness still stay on the layer of repeated washing, a large amount of energy resources are consumed, and the effect is not satisfactory. In addition, most of the soaping agents used by manufacturers at the present stage generally remove the loose color on the surface of the fabric by solubilization, chelation, dispersion and other modes, and the soaping agents need to be washed repeatedly at high temperature, so that a large amount of energy resources are consumed.
Therefore, a high color fastness process of a cationic polyester/viscose blended dyed yarn is provided.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art and provides a high color fastness process for a cationic polyester/viscose blended dyed yarn.
In order to achieve the purpose, the invention adopts the following technical scheme that the high color fastness process of the cationic polyester/viscose blended dyed yarn comprises the following steps:
s1, firstly, carrying out dye pretreatment on the raw material of the polyester/viscose blended dyed yarn;
s2, adding soft water and a chelating dispersant into the treated cloth;
s3, adding the prepared soft water and chelating dispersant into the mixed aqueous solution of the cationic polyester/viscose blended colored yarn raw material;
s4, soaping the yarn dyed by the reactive dye with a soaping liquid composed of urea, ethylene diamine tetraacetic acid, hydrogen peroxide and water, sequentially washing with hot water and cold water, and drying;
s5, drying the cloth washed by the soap in the S4, and fixing color;
and S6, making the color-fixed cloth into finished fabric clothes through a textile machine.
Preferably, the ratio of the chelating dispersant to the water in the S2 is 1: 9, wherein the chelating dispersant is prepared by mixing at least one of a polymer LBD-1 dispersant, a dispersant NNO, a dispersant MF and sodium lignosulfonate.
Preferably, the concentration of chelating dispersant in S2 is < 30%.
Preferably, the chelating dispersant in S2 is added to S3, and the pH of the mixed aqueous solution is measured every 15 min.
Preferably, the contents of urea, disodium ethylene diamine tetraacetate and 27% hydrogen peroxide in the soap washing liquid in the S4 are respectively 3-4 g/L, 0.5-1 g/L and 1-4 mL/L.
Preferably, the contents of urea, disodium ethylene diamine tetraacetate and hydrogen peroxide in the soap washing liquid in the S4 are respectively 2.5-3.8 g/L, 0.7-1.2 g/L and 2-2.5 mL/L.
Preferably, the soaping is carried out by putting the yarn dyed by the reactive dye and soaping liquid into an oscillating water bath kettle at the rotating speed of 50-70 r/min, wherein the temperature of the soaping liquid is 75-96 ℃, the soaping time is 10-20 min, and the bath ratio is 1: 2-30.
Preferably, the S5 is treated by using cation with excellent performance and a reactive color fixing agent, wherein any one of DFRF-1 and SH-96 is used as the reactive color fixing agent.
Preferably, the reaction color fixing agent in S5 is added into clear water at about 25 ℃ in a proportion of 1-6%, the pH regulator is not used for regulating the acidity of the dye bath, and the dye bath is circulated and heated to 50 ℃.
Preferably, the treatment in S5 is carried out for at least 20min, and drying is carried out, so that the concentration of the solution of the product in the dye bath is kept at 30-60 g/L.
Advantageous effects
The invention provides a high color fastness process for a cationic polyester/viscose blended dyed yarn. The method has the following beneficial effects:
(1) the chelating agent in the process has strong chelating force and scum dispersing force, prevents the generation of precipitates and scum generated by other pollutants in the dyeing and finishing process, can slowly dissolve and remove silica scale, calcium soap precipitates and oligomers in equipment, prevents recontamination of metal salt on various fibers, improves the whiteness, vividness and color fastness of bleaching, dyeing and printing products, and simultaneously can prevent recontamination of white substrates of the printing products and yarn-dyed products. Physical and chemical properties of the chelating dispersant.
(2) The dye-fixing agent adopted in the process does not contain formaldehyde and heavy metal ions, has the same using effect as the traditional formaldehyde resin dye-fixing agent, and obviously improves the fastness to washing and wet treatment of direct dyes and reactive dyes; no ammonia smell is released under the influence of high temperature and/or PH value, and the dye is not decomposed when heated, so the dye is a suitable post-treatment fixing agent for cheese dyeing and other high-temperature dyeing; it is also effective when used at low temperatures. Can be used at 40 ℃, still has good washing fastness and wet-proof treatment fastness, and can prevent dye migration in the drying process.
(3) According to the high color fastness process of the cationic polyester/viscose blended dyed yarn, calcium and magnesium ions in water can form insoluble matters with the dye and are adsorbed on the surface of the fiber, the phenomenon that the calcium and magnesium ions become loose color and block the diffusion and permeation of the dye is reduced, and the color fastness, the color light and the vividness in the process are improved.
(4) According to the high color fastness process for the cationic/polyester/viscose blended dyed yarn, the residual alkali salts, hydrolyzed and unbound dye on the fiber in the washing and soaping process is strengthened, the unbound dye in the fabric is prevented from being washed away at high temperature, and the broken bond of the bound dye is kept to fall off.
(5) The cationic dye and the reactive dye fixing agent with excellent performance are used for treating and sealing water-soluble groups of the dye, so that the dye becomes insoluble lake and is deposited in the fiber, the water solubility of the dye is reduced, and a small amount of hydrolyzed dye can participate in color fixing and crosslinking to further increase the binding force with the fiber, thereby effectively improving the wet treatment, color fastness and the like of the dye.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described 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.
The first embodiment is as follows: a high color fastness process for a cationic polyester/viscose blended dyed yarn comprises the following steps,
s1, firstly, carrying out dye pretreatment on the raw material of the polyester/viscose blended dyed yarn;
s2, adding soft water and a chelating dispersant into the treated cloth;
s3, adding the prepared soft water and chelating dispersant into the mixed aqueous solution of the cationic polyester/viscose blended colored yarn raw material;
s4, soaping the yarn dyed by the reactive dye with a soaping liquid composed of urea, ethylene diamine tetraacetic acid, hydrogen peroxide and water, sequentially washing with hot water and cold water, and drying;
s5, drying the cloth washed by the soap in the S4, and fixing color;
and S6, making the color-fixed cloth into finished fabric clothes through a textile machine.
Wherein the ratio of the chelating dispersant to water in S2 is 1: 9, wherein the chelating dispersant is prepared by mixing at least one of a polymer LBD-1 dispersant, a dispersant NNO, a dispersant MF and sodium lignosulfonate.
The concentration of chelating dispersant in S2 was < 30%.
The chelating dispersant in S2 was added to S3, and the pH of the mixed aqueous solution was measured at 15-min intervals.
The contents of urea, disodium ethylene diamine tetraacetate and 27% hydrogen peroxide in the soap lotion in S4 are respectively 3-4 g/L, 0.5-1 g/L and 1-4 mL/L.
The contents of urea, disodium ethylene diamine tetraacetate and hydrogen peroxide in the soap lotion in S4 are respectively 2.5-3.8 g/L, 0.7-1.2 g/L and 2-2.5 mL/L.
The soaping is carried out by putting the yarn dyed by the reactive dye and soaping liquid into an oscillating water bath kettle at the rotating speed of 50-70 r/min, wherein the temperature of the soaping liquid is 75-96 ℃, the soaping time is 10-20 min, and the bath ratio is 1: 2-30.
In S5, cations with excellent performance and a reactive color fixing agent are adopted for treatment, wherein the reactive color fixing agent adopts any one of DFRF-1 and SH-96.
In S5, a reaction color fixing agent is added into clear water at about 25 ℃ in a proportion of 1-6%, the pH regulator is not used for regulating the acidity of the dye bath, the dye bath is circulated, and the temperature is raised to 50 ℃.
And S5, drying for at least 20min, and keeping the concentration of the solution of the product in the dye bath at 30-60 g/L.
The working principle of the invention is as follows: the color fixing agent adopted in the process does not contain formaldehyde and heavy metal ions, has the same using effect as the traditional formaldehyde resin color fixing agent, and obviously improves the fastness to washing and wet treatment of direct dyes and reactive dyes.
Example two: a high color fastness process for a cationic polyester/viscose blended dyed yarn comprises the following steps,
s1, firstly, carrying out dye pretreatment on the raw material of the polyester/viscose blended dyed yarn;
s2, adding soft water and a chelating dispersant into the treated cloth;
s3, adding the prepared soft water and chelating dispersant into the mixed aqueous solution of the cationic polyester/viscose blended colored yarn raw material;
s4, soaping the yarn dyed by the reactive dye with a soaping liquid composed of urea, ethylene diamine tetraacetic acid, hydrogen peroxide and water, sequentially washing with hot water and cold water, and drying;
s5, drying the cloth washed by the soap in the S4, and fixing color;
and S6, making the color-fixed cloth into finished fabric clothes through a textile machine.
Wherein the ratio of the chelating dispersant to water in S2 is 1: 9, wherein the chelating dispersant is prepared by mixing at least one of a polymer LBD-1 dispersant, a dispersant NNO, a dispersant MF and sodium lignosulfonate.
The concentration of the chelating dispersant in S2 is 25-28%.
The chelating dispersant in S2 was added to S3, and the pH of the mixed aqueous solution was measured at 15-min intervals.
The contents of urea, disodium ethylene diamine tetraacetate and 27% hydrogen peroxide in the soap lotion in S4 are respectively 3-4 g/L, 0.5-1 g/L and 1-4 mL/L.
The contents of urea, disodium ethylene diamine tetraacetate and hydrogen peroxide in the soap lotion in S4 are respectively 2.5-3.8 g/L, 0.7-1.2 g/L and 2-2.5 mL/L.
The soaping is carried out by putting the yarn dyed by the reactive dye and soaping liquid into an oscillating water bath kettle at the rotating speed of 50-70 r/min, wherein the temperature of the soaping liquid is 75-96 ℃, the soaping time is 10-20 min, and the bath ratio is 1: 2-30.
In S5, cations with excellent performance and a reactive color fixing agent are adopted for treatment, wherein the reactive color fixing agent adopts any one of DFRF-1 and SH-96.
In S5, a reaction color fixing agent is added into clear water at about 25 ℃ in a proportion of 1-6%, the pH regulator is not used for regulating the acidity of the dye bath, the dye bath is circulated, and the temperature is raised to 50 ℃.
And S5, drying for at least 20min, and keeping the concentration of the solution of the product in the dye bath at 30-60 g/L.
In the invention: the adopted process improves the condition that calcium and magnesium ions in water and dye form insoluble matters to be adsorbed on the surface of the fiber, reduces the occurrence of flooding and hindering the diffusion and the permeation of the dye, and improves the color fastness, the color light and the vividness in the process.
Example three: a high color fastness process for a cationic polyester/viscose blended dyed yarn comprises the following steps,
s1, firstly, carrying out dye pretreatment on the raw material of the polyester/viscose blended dyed yarn;
s2, adding soft water and a chelating dispersant into the treated cloth;
s3, adding the prepared soft water and chelating dispersant into the mixed aqueous solution of the cationic polyester/viscose blended colored yarn raw material;
s4, soaping the yarn dyed by the reactive dye with a soaping liquid composed of urea, ethylene diamine tetraacetic acid, hydrogen peroxide and water, sequentially washing with hot water and cold water, and drying;
s5, drying the cloth washed by the soap in the S4, and fixing color;
and S6, making the color-fixed cloth into finished fabric clothes through a textile machine.
Wherein the ratio of the chelating dispersant to water in S2 is 1: 9, wherein the chelating dispersant is prepared by mixing at least one of a polymer LBD-1 dispersant, a dispersant NNO, a dispersant MF and sodium lignosulfonate.
The concentration of chelating dispersant in S2 was < 30%.
The chelating dispersant in S2 was added to S3, and the pH of the mixed aqueous solution was measured at 15-min intervals.
The contents of urea, disodium ethylene diamine tetraacetate and 27% hydrogen peroxide in the soap lotion in S4 are respectively 3-4 g/L, 0.5-1 g/L and 1-4 mL/L.
The contents of urea, disodium ethylene diamine tetraacetate and hydrogen peroxide in the soap lotion in S4 are respectively 2.5-3.8 g/L, 0.7-1.2 g/L and 2-2.5 mL/L.
The soaping is carried out by putting the yarn dyed by the reactive dye and soaping liquid into an oscillating water bath kettle at the rotating speed of 50-70 r/min, wherein the temperature of the soaping liquid is 75-96 ℃, the soaping time is 10-20 min, and the bath ratio is 1: 2-30.
In S5, cations with excellent performance and a reactive color fixing agent are adopted for treatment, wherein the reactive color fixing agent adopts any one of DFRF-1 and SH-96.
In S5, a reaction color fixing agent is added into clear water at about 25 ℃ in a proportion of 1-6%, the pH regulator is not used for regulating the acidity of the dye bath, the dye bath is circulated, and the temperature is raised to 50 ℃.
And S5, drying for at least 20min, and keeping the concentration of the solution of the product in the dye bath at 30-60 g/L.
The working principle of the invention is as follows: in the process, the residual alkali salts, hydrolyzed and unbound dyes on the fibers of the washing and soaping process are enhanced to loose color, the unbound dyes in the fabric are prevented from being washed away at high temperature, and the broken bonds of the bound dyes are kept to fall off.
Example four: a high color fastness process for a cationic polyester/viscose blended dyed yarn comprises the following steps,
s1, firstly, carrying out dye pretreatment on the raw material of the polyester/viscose blended dyed yarn;
s2, adding soft water and a chelating dispersant into the treated cloth;
s3, adding the prepared soft water and chelating dispersant into the mixed aqueous solution of the cationic polyester/viscose blended colored yarn raw material;
s4, soaping the yarn dyed by the reactive dye with a soaping liquid composed of urea, ethylene diamine tetraacetic acid, hydrogen peroxide and water, sequentially washing with hot water and cold water, and drying;
s5, drying the cloth washed by the soap in the S4, and fixing color;
and S6, making the color-fixed cloth into finished fabric clothes through a textile machine.
Wherein the ratio of the chelating dispersant to water in S2 is 1: 8.5, wherein the chelating dispersant is prepared by mixing at least one of a polymer LBD-1 dispersant, a dispersant NNO, a dispersant MF and sodium lignosulfonate.
The concentration of chelating dispersant in S2 was < 30%.
The chelating dispersant in S2 was added to S3, and the pH of the mixed aqueous solution was measured at 15-min intervals.
The contents of urea, disodium ethylene diamine tetraacetate and 27% hydrogen peroxide in the soap lotion in S4 are respectively 3-4 g/L, 0.5-1 g/L and 1-4 mL/L.
The contents of urea, disodium ethylene diamine tetraacetate and hydrogen peroxide in the soap lotion in S4 are respectively 2.5-3.8 g/L, 0.7-1.2 g/L and 2-2.5 mL/L.
The soaping is carried out by putting the yarn dyed by the reactive dye and soaping liquid into an oscillating water bath kettle at the rotating speed of 50-70 r/min, wherein the temperature of the soaping liquid is 75-96 ℃, the soaping time is 10-20 min, and the bath ratio is 1: 2-30.
In S5, cations with excellent performance and a reactive color fixing agent are adopted for treatment, wherein the reactive color fixing agent adopts any one of DFRF-1 and SH-96.
In S5, a reaction color fixing agent is added into clear water at about 25 ℃ in a proportion of 1-6%, the pH regulator is not used for regulating the acidity of the dye bath, the dye bath is circulated, and the temperature is raised to 50 ℃.
And S5, drying for at least 20min, and keeping the concentration of the solution of the product in the dye bath at 30-60 g/L.
The working principle of the invention is as follows: the water-soluble groups of the dye can be sealed after being treated by the cation with excellent performance and the reactive color fixing agent, so that the dye becomes insoluble lake and is deposited in the fiber, the water solubility of the dye is reduced, and a small amount of hydrolyzed dye can participate in color fixing crosslinking to further increase the binding force with the fiber, thereby effectively improving the wet treatment and color fastness of the dye.
Example five: a high color fastness process for a cationic polyester/viscose blended dyed yarn comprises the following steps,
s1, firstly, carrying out dye pretreatment on the raw material of the polyester/viscose blended dyed yarn;
s2, adding soft water and a chelating dispersant into the treated cloth;
s3, adding the prepared soft water and chelating dispersant into the mixed aqueous solution of the cationic polyester/viscose blended colored yarn raw material;
s4, soaping the yarn dyed by the reactive dye with a soaping liquid composed of urea, ethylene diamine tetraacetic acid, hydrogen peroxide and water, sequentially washing with hot water and cold water, and drying;
s5, drying the cloth washed by the soap in the S4, and fixing color;
and S6, making the color-fixed cloth into finished fabric clothes through a textile machine.
Wherein the ratio of the chelating dispersant to water in S2 is 1: 8, wherein the chelating dispersant is prepared by mixing at least one of a polymer LBD-1 dispersant, a dispersant NNO, a dispersant MF and sodium lignosulfonate.
The concentration of chelating dispersant in S2 was < 30%.
The chelating dispersant in S2 was added to S3, and the pH of the mixed aqueous solution was measured at 15-min intervals.
The contents of urea, disodium ethylene diamine tetraacetate and hydrogen peroxide with the concentration of 26% in the soap lotion in S4 are respectively 3-3.5 g/L, 0.6-1 g/L and 1-4 mL/L.
The contents of urea, disodium ethylene diamine tetraacetate and hydrogen peroxide in the soap lotion in S4 are respectively 2.5-3.7 g/L, 0.8-1.2 g/L and 1.8-2.5 mL/L.
The soaping is carried out by putting the yarn dyed by the reactive dye and a soaping liquid into an oscillating water bath kettle at the rotating speed of 50-70 r/min, wherein the temperature of the soaping liquid is 70-92 ℃, the soaping time is 10-20 min, and the bath ratio is 1: 2-30.
In S5, cations with excellent performance and a reactive color fixing agent are adopted for treatment, wherein the reactive color fixing agent adopts any one of DFRF-1 and SH-96.
In S5, a reaction color fixing agent is added into clear water at about 25 ℃ in a proportion of 1-6%, the pH regulator is not used for regulating the acidity of the dye bath, the dye bath is circulated, and the temperature is raised to 50 ℃.
And S5, drying for at least 20min, and keeping the concentration of the solution of the product in the dye bath at 30-60 g/L.
The working principle of the invention is as follows: the chelating agent in the process has strong chelating force and scum dispersing force, prevents the generation of precipitates and scum generated by other pollutants in the dyeing and finishing process, can slowly dissolve and remove silicon scale, calcium soap precipitates and oligomers in equipment, prevents metal salt from recontaminating various fibers, improves the whiteness, the vividness and the color fastness of bleaching, dyeing and printing products, and simultaneously can prevent recontamination of white substrates of the printing products and yarn-dyed products. Physical and chemical properties of the chelating dispersant.
Example six: a high color fastness process for a cationic polyester/viscose blended dyed yarn comprises the following steps,
s1, firstly, carrying out dye pretreatment on the raw material of the polyester/viscose blended dyed yarn;
s2, adding soft water and a chelating dispersant into the treated cloth;
s3, adding the prepared soft water and chelating dispersant into the mixed aqueous solution of the cationic polyester/viscose blended colored yarn raw material;
s4, soaping the yarn dyed by the reactive dye with a soaping liquid composed of urea, ethylene diamine tetraacetic acid, hydrogen peroxide and water, sequentially washing with hot water and cold water, and drying;
s5, drying the cloth washed by the soap in the S4, and fixing color;
and S6, making the color-fixed cloth into finished fabric clothes through a textile machine.
Wherein the ratio of the chelating dispersant to water in S2 is 1: 8, wherein the chelating dispersant is prepared by mixing at least one of a polymer LBD-1 dispersant, a dispersant NNO, a dispersant MF and sodium lignosulfonate.
The concentration of chelating dispersant in S2 was < 30%.
The chelating dispersant in S2 was added to S3, and the pH of the mixed aqueous solution was measured at 15-min intervals.
The contents of urea, disodium ethylene diamine tetraacetate and 27% hydrogen peroxide in the soap lotion in S4 are respectively 3-4 g/L, 0.5-1.2 g/L and 1-3.5 mL/L.
The contents of urea, disodium ethylene diamine tetraacetate and hydrogen peroxide in the soap lotion in S4 are respectively 2.5-3.8 g/L, 0.7-1.2 g/L and 2-2.5 mL/L.
The soaping is carried out by putting the yarn dyed by the reactive dye and soaping liquid into an oscillating water bath kettle at the rotating speed of 50-70 r/min, wherein the temperature of the soaping liquid is 76-96 ℃, the soaping time is 10-20 min, and the bath ratio is 1: 2-30.
In S5, cations with excellent performance and a reactive color fixing agent are adopted for treatment, wherein the reactive color fixing agent adopts any one of DFRF-1 and SH-96.
In S5, a reaction color fixing agent is added into clear water at about 25 ℃ in a proportion of 1-6%, the pH regulator is not used for regulating the acidity of the dye bath, the dye bath is circulated, and the temperature is raised to 50 ℃.
And S5, drying for at least 20min, and keeping the concentration of the solution of the product in the dye bath at 20-60 g/L.
The working principle of the invention is as follows: the reactive dye can effectively improve the color fastness of the fabric on the premise of hardly changing the color light of the fabric, can reduce the number of soaping, has the advantages of time saving, water saving, energy saving and emission reduction, has universality, and has an obvious improvement effect on the color fastness at a lower temperature and at a lower concentration.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A high color fastness process for a cationic polyester/viscose blended dyed yarn is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
s1, firstly, carrying out dye pretreatment on the raw material of the polyester/viscose blended dyed yarn;
s2, adding soft water and a chelating dispersant into the treated cloth;
s3, adding the prepared soft water and chelating dispersant into the mixed aqueous solution of the cationic polyester/viscose blended colored yarn raw material;
s4, soaping the yarn dyed by the reactive dye with a soaping liquid composed of urea, ethylene diamine tetraacetic acid, hydrogen peroxide and water, sequentially washing with hot water and cold water, and drying;
s5, drying the cloth washed by the soap in the S4, and fixing color;
and S6, making the color-fixed cloth into finished fabric clothes through a textile machine.
2. The high color fastness process of the cationic polyester/viscose blended dyed yarn according to claim 1, characterized in that: the ratio of the chelating dispersant to water in the S2 is 1: 9, wherein the chelating dispersant is prepared by mixing at least one of a polymer LBD-1 dispersant, a dispersant NNO, a dispersant MF and sodium lignosulfonate.
3. The high color fastness process of the cationic polyester/viscose blended dyed yarn according to claim 1, characterized in that: the concentration of chelating dispersant in S2 was < 30%.
4. The high color fastness process of the cationic polyester/viscose blended dyed yarn according to claim 1, characterized in that: and adding the chelating dispersant in the S2 into the S3, and detecting the pH of the mixed aqueous solution every 15 min.
5. The high color fastness process of the cationic polyester/viscose blended dyed yarn according to claim 1, characterized in that: the contents of urea, disodium ethylene diamine tetraacetate and 27% hydrogen peroxide in the soap washing liquid in the S4 are respectively 3-4 g/L, 0.5-1 g/L and 1-4 mL/L.
6. The high color fastness process of the cationic polyester/viscose blended dyed yarn according to claim 1, characterized in that: the contents of urea, disodium ethylene diamine tetraacetate and hydrogen peroxide in the soap washing liquid in the S4 are respectively 2.5-3.8 g/L, 0.7-1.2 g/L and 2-2.5 mL/L.
7. The high color fastness process of the cationic polyester/viscose blended dyed yarn according to claim 1, characterized in that: the soaping is carried out by putting the yarn dyed by the reactive dye and soaping liquid into an oscillating water bath kettle at the rotating speed of 50-70 r/min, wherein the temperature of the soaping liquid is 75-96 ℃, the soaping time is 10-20 min, and the bath ratio is 1: 2-30.
8. The high color fastness process of the cationic polyester/viscose blended dyed yarn according to claim 1, characterized in that: and in the S5, cations with excellent performance and a reactive color fixing agent are adopted for treatment, wherein the reactive color fixing agent adopts any one of DFRF-1 and SH-96.
9. The high color fastness process of the cationic polyester/viscose blended dyed yarn according to claim 1, characterized in that: in S5, a reaction color fixing agent is added into clear water at about 25 ℃ in a proportion of 1-6%, the pH regulator is not used for regulating the acidity of the dye bath, the dye bath is circulated, and the temperature is raised to 50 ℃.
10. The high color fastness process of the cationic polyester/viscose blended dyed yarn according to claim 1, characterized in that: and (3) treating for at least 20min in the step S5, drying, and keeping the concentration of the solution of the product in the dye bath at 30-60 g/L.
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| CN115323762A (en) * | 2022-08-11 | 2022-11-11 | 浙江怡丰印染有限公司 | High-color-fastness finishing process for pure cotton fabric |
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