CN110886111B - Disperse dye dyeing method for glyoxal cross-linked cotton fabric - Google Patents
Disperse dye dyeing method for glyoxal cross-linked cotton fabric Download PDFInfo
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- CN110886111B CN110886111B CN201911309806.8A CN201911309806A CN110886111B CN 110886111 B CN110886111 B CN 110886111B CN 201911309806 A CN201911309806 A CN 201911309806A CN 110886111 B CN110886111 B CN 110886111B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/58—Material containing hydroxyl groups
- D06P3/60—Natural or regenerated cellulose
- D06P3/6033—Natural or regenerated cellulose using dispersed dyes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/12—Aldehydes; Ketones
- D06M13/123—Polyaldehydes; Polyketones
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
- D06M13/5135—Unsaturated compounds containing silicon atoms
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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
- D06P1/0032—Determining dye recipes and dyeing parameters; Colour matching or monitoring
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- 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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- 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
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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
- D06P1/44—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
- D06P1/651—Compounds without nitrogen
- D06P1/65106—Oxygen-containing compounds
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- 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
- D06P1/651—Compounds without nitrogen
- D06P1/65106—Oxygen-containing compounds
- D06P1/65112—Compounds containing aldehyde or ketone groups
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/22—Effecting variation of dye affinity on textile material by chemical means that react with the fibre
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/20—Treatment influencing the crease behaviour, the wrinkle resistance, the crease recovery or the ironing ease
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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
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Abstract
The invention relates to the technical field of textile, and discloses a disperse dye dyeing method of glyoxal cross-linked cotton fabric, which comprises the following steps: (1) carrying out non-ironing pretreatment: using glyoxal as a non-ironing finishing agent to carry out non-ironing finishing on the cotton fabric; (2) dyeing with disperse dyes: and (3) dyeing the cotton fabric pretreated in the step (1) by using a disperse dye preparation through a disperse dye. The method can effectively dye the cotton fabric by using the disperse dye, has simple process and low sewage treatment cost in the production process, and is environment-friendly.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to a disperse dye dyeing method of glyoxal cross-linked cotton fabric.
Background
The pure cotton fabric is produced by using cotton as a raw material through a textile process, and has the characteristics of moisture absorption, moisture retention, heat resistance, alkali resistance, sanitation and the like. The pure cotton fabric is comfortable to wear and good in skin friendliness, is widely favored by people, and is particularly considered as the safest fabric in infant clothes.
In the existing dyeing field, the cotton fabric is dyed by using reactive dyes most commonly, but in the reactive dye dyeing process, in order to enable the dyes to have enough affinity to cotton fibers, a large amount of electrolytes (salts) need to be added, and meanwhile, a large amount of alkali needs to be added to provide a needed alkaline environment for dyeing, so that the difficulty of treating the reactive dye dyeing wastewater is greatly increased, and the dyeing cost is also increased. Meanwhile, the active dye is limited by the color spectrum, and has fewer beautiful colors and fluorescent color systems, so that the increasingly growing aesthetic requirements of people cannot be met.
Another common dyeing method is disperse dye dyeing, which is commonly used for dyeing terylene because of its excellent properties of bright and rich color, fastness to washing, rubbing and sun, mildness to skin, and environmental friendliness, and its dyeing process usually requires higher temperature or pressure, for example, the dyeing condition is heating to 130 ℃ and pressurizing or hot melting to 180 ℃. The cotton fiber has more hydrophilic hydroxyl groups, and the disperse dye is a nonionic dye with low water solubility and strong hydrophobicity, so that the disperse dye has no affinity to the cotton fiber, and is difficult to dye the cotton fiber by using the disperse dye.
Disclosure of Invention
The invention aims to overcome the problems existing in the process of dyeing cotton fabrics by using the reactive dye and provides a disperse dye dyeing method of glyoxal cross-linked cotton fabrics.
In order to achieve the above object, the present invention provides a disperse dye dyeing method of glyoxal crosslinked cotton fabric, which comprises the steps of:
(1) non-ironing pretreatment: carrying out non-ironing finishing on the cotton fabric by using glyoxal and a silane coupling agent;
(2) dyeing with a disperse dye: and (3) dyeing the cotton fabric pretreated in the step (1) by using a disperse dye preparation through a disperse dye.
Preferably, in step (1), the process of permanent press finishing comprises: soaking and rolling the cotton fabric into finishing liquid containing glyoxal and a silane coupling agent for two times to ensure that the liquid carrying rate is 70-80%, drying at 75-85 ℃ for 3-10 minutes, baking at 150-170 ℃ for 1.5-3 minutes, and then taking out the treated cotton fabric to wash and dry at 75-85 ℃.
Preferably, the finishing liquid containing the glyoxal and the silane coupling agent further contains a penetrating agent and aluminum sulfate, wherein the concentration of the glyoxal is 30-100g/L, preferably 50-80 g/L; the concentration of the silane coupling agent is 3-20g/L, preferably 8-15 g/L; the concentration of the penetrating agent is 0.1-2g/L, preferably 0.2-1 g/L; the concentration of aluminum sulfate is 10-30g/L, preferably 20-30 g/L.
Preferably, the silane coupling agent is at least one of vinyltriethoxysilane, vinyltrimethoxysilane and vinyltris (β -methoxyethoxy) silane.
Preferably, in the step (2), the step of dyeing with the disperse dye includes: adding the cotton fabric into a disperse dye preparation, wherein the bath ratio is 1:10-50, the initial dyeing temperature is 30-60 ℃, then heating up at the heating rate of 1-3 ℃/min, keeping the temperature and dyeing for 40-80min after the temperature reaches 70-100 ℃, then cooling down at the cooling rate of 1-3 ℃/min, taking out the fabric after the temperature is reduced to below 50 ℃, and reducing and cleaning.
Preferably, the disperse dye formulation is a disperse suspension of disperse dye in water, and the amount of the disperse dye is 0.5-5% of the mass of the cotton fabric.
Preferably, the disperse dye is at least one of disperse blue, disperse black, disperse gray, disperse red, disperse violet, disperse yellow and disperse orange.
Preferably, a leveling agent is also included in the disperse dye formulation.
Preferably, the leveling agent is used in an amount of 0.05% to 0.5% by mass of the disperse dye formulation.
Preferably, the solution used for reduction cleaning is a mixed aqueous solution of sodium hydrosulfite and caustic soda.
Preferably, the concentration of the sodium hydrosulfite in the solution for reduction cleaning is 0.5-4 g/L.
Preferably, the concentration of caustic soda in the solution used for the reductive cleaning is 0.5-4 g/L.
Preferably, the conditions of the reductive cleaning include: the bath ratio is 1:10-30, the temperature is 70-100 deg.C, and the time is 5-30 min.
According to the disperse dye dyeing method of the glyoxal cross-linked cotton fabric, firstly, glyoxal and a silane coupling agent are used for carrying out non-ironing finishing on the cotton fabric, so that the non-ironing performance of the cotton fabric is improved; on the other hand, in the non-ironing finishing process, as glyoxal and silane coupling agent are subjected to cross-linking reaction with cotton fibers, acetal compounds or hemiacetal compounds are generated, hydrophilic group hydroxyl in the cotton fibers is replaced by hydrophobic group, so that the hydrophilic group hydroxyl has affinity to disperse dyes, and then the cotton fibers can be dyed by using a conventional disperse dye dyeing method.
Detailed Description
The following describes the embodiments of the present invention in detail. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are given by way of illustration and explanation only, not limitation.
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
The disperse dye dyeing method of the glyoxal cross-linked cotton fabric comprises the following steps:
(1) non-ironing pretreatment: carrying out non-ironing finishing on the cotton fabric by using glyoxal and a silane coupling agent;
(2) dyeing with a disperse dye: and (3) dyeing the cotton fabric pretreated in the step (1) by using a disperse dye preparation through a disperse dye.
In the method of the present invention, preferably, the process of the permanent press finishing comprises: soaking and rolling the cotton fabric into finishing liquid containing glyoxal and a silane coupling agent for two times to ensure that the liquid carrying rate is 70-80%, drying at 75-85 ℃ for 3-10 minutes, baking at 150-170 ℃ for 1.5-3 minutes, and then taking out the treated cotton fabric to wash and dry at 75-85 ℃.
In the finishing liquid containing glyoxal and a silane coupling agent, a penetrating agent and aluminum sulfate are preferably also contained, wherein the concentration of the glyoxal can be 30-100g/L, and is preferably 50-80 g/L; the concentration of the silane coupling agent can be 3-20g/L, preferably 8-15 g/L; the concentration of the penetrant can be 0.1-2g/L, preferably 0.2-1 g/L; the concentration of aluminum sulfate may be 10-30g/L, preferably 20-30 g/L.
In the method of the present invention, the silane coupling agent is preferably at least one of vinyltriethoxysilane, vinyltrimethoxysilane and vinyltris (β -methoxyethoxy) silane.
In the present invention, the penetrant may be a conventionally used penetrant in the art, and may be, for example, a commercially available penetrant NR.
In the present invention, the disperse dye dyeing in the step (2) can be performed by using a disperse dye dyeing process which is conventional in the art, as a preferred disperse dye dyeing step in the present invention, as follows: adding the cotton fabric into a disperse dye preparation, wherein the bath ratio is 1:10-50, the initial dyeing temperature is 30-60 ℃, then heating up at the heating rate of 1-3 ℃/min, keeping the temperature and dyeing for 40-80min after the temperature reaches 70-100 ℃, then cooling down at the cooling rate of 1-3 ℃/min, taking out the fabric after the temperature is reduced to below 50 ℃, and reducing and cleaning.
In the dyeing operation, disperse dye dyeing is carried out on the cotton fabric by using a dip dyeing method, the cotton fabric is dipped in dyeing liquid, the dyeing liquid is heated at a certain speed to increase the temperature so as to control the dyeing uniformity and the dyeing quality, heat preservation dyeing is carried out after the dyeing liquid reaches a proper temperature, a certain temperature is given to a dyeing system, so that the gaps among cotton fiber molecules are increased, the dye molecules can enter the modified cotton fiber molecules more conveniently and can be filled, dyeing is realized, and the cotton fabric is cooled and reduced and cleaned after dyeing is finished.
In the present invention, the disperse dye formulation is a disperse suspension of disperse dye in water, and the amount of the disperse dye can be 0.5% -5% of the amount of cotton fabric, for example, can be 1%, 2%, 3% or 4%.
In the present invention, the disperse dye is not particularly limited, and disperse dyes that are conventional in the art can dye cotton fabrics according to the scheme of the present invention, for example, the disperse dye may be at least one of disperse blue, disperse black, disperse gray, disperse red, disperse violet, disperse yellow and disperse orange. According to the actual process requirements, disperse dye coloring agents with various dyeing effects are prepared.
In a preferred embodiment of the present invention, a leveling agent is also included in the disperse dye formulation; the amount of the leveling agent can be 0.05-0.5%, preferably 0.1-0.4%, and more preferably 0.15-0.3% of the mass of the disperse dye formulation. The dye is promoted to be uniformly dyed by adding a small amount of leveling agent.
After the disperse dye in the step (2) of the invention is used for dyeing, because the disperse dye can not be completely ensured to completely enter the cotton fiber during dyeing, and some disperse dye can be attached to the surface of the fiber, and the poor dyeing fastness can be caused without removing the loose color, reduction cleaning is needed, and the dye molecules which do not enter the cotton fiber are damaged by using a strong reducing agent, so that the color fastness is improved, and the chromatic light is improved.
In the invention, the solution used for reduction cleaning can be a mixed aqueous solution of sodium hydrosulfite and caustic soda;
further, the concentration of sodium hydrosulfite in the solution for reduction cleaning is 0.5-4g/L, preferably 1-3 g/L;
further, the concentration of caustic soda in the solution for reduction cleaning is 0.5-4g/L, preferably 1-3 g/L.
In the present invention, the conditions of the reductive cleaning include: the bath ratio may be 1:10-30 (e.g., may be 1:10, 1:15, 1:20, 1:25 or 1:30), the temperature may be 70-100 ℃ (e.g., may be 70 ℃, 80 ℃, 90 ℃ or 100 ℃), and the time may be 5-30min (e.g., may be 5min, 10min, 15min, 20min, 25min or 30 min).
The present invention will be described in detail below by way of examples, but the scope of the present invention is not limited thereto.
Example 1
Soaking the cotton fabric in the finishing liquid for two times and rolling for 5 minutes at 80 ℃, baking the cotton fabric for 2 minutes at 160 ℃, taking out the treated cotton fabric, and washing the cotton fabric with water and drying the cotton fabric at 80 ℃, wherein in the finishing liquid, the concentration of glyoxal is 65g/L, the concentration of vinyltriethoxysilane is 8g/L, the concentration of a penetrant NR is 0.6g/L, and the concentration of aluminum sulfate is 25 g/L.
Adding 10 parts by weight of the pretreated cotton fabric into a disperse dye preparation, wherein the disperse dye preparation contains 0.2 part by weight of disperse red dye and 0.02 part by weight of leveling agent, the bath ratio is 1:20, the initial dyeing temperature is 40 ℃, then the temperature is increased at the rate of 2 ℃/min, after the temperature reaches 90 ℃, the temperature is kept and dyed for 40min, then the temperature is decreased at the rate of 2 ℃/min, the temperature is decreased to 50 ℃, then the fabric is taken out, and then the dyed cotton fabric A1 is obtained by reducing and cleaning for 20min at 80 ℃ by using a mixed aqueous solution of 2g/L caustic soda and 1g/L sodium hydrosulfite at the bath ratio of 1: 20.
Example 2
Soaking the cotton fabric in the finishing liquid for two times and rolling the cotton fabric for 5 minutes at 80 ℃, baking the cotton fabric for 2 minutes at 160 ℃, taking out the treated cotton fabric, and washing the cotton fabric with water and drying the cotton fabric at 80 ℃, wherein in the finishing liquid, the concentration of glyoxal is 50g/L, the concentration of vinyltrimethoxysilane is 5g/L, the concentration of a penetrating agent NR is 0.4g/L, and the concentration of aluminum sulfate is 30 g/L.
And (2) adding 10 parts by weight of the pretreated cotton fabric into a disperse dye preparation, wherein the disperse dye preparation contains 0.4 part by weight of disperse red dye and 0.03 part by weight of leveling agent, the bath ratio is 1:50, the initial dyeing temperature is 30 ℃, then the temperature is increased at the rate of 1 ℃/min, after the temperature reaches 70 ℃, the cotton fabric is subjected to heat preservation dyeing for 80min, then the temperature is decreased at the rate of 1 ℃/min, the temperature is decreased to 40 ℃, then the cotton fabric is taken out, and then the cotton fabric is subjected to reduction cleaning for 30min at 70 ℃ by using a mixed aqueous solution of 3g/L caustic soda and 2g/L sodium hydrosulfite at the bath ratio of 1:10, so that the dyed cotton fabric A2 is obtained.
Example 3
Soaking cotton fabric in finishing liquid for two times and rolling the cotton fabric for two times to ensure that the liquid carrying rate is 75 percent, drying the cotton fabric for 5 minutes at 80 ℃, baking the cotton fabric for 2 minutes at 160 ℃, taking out the treated cotton fabric, and washing the cotton fabric with water and drying the cotton fabric at 80 ℃, wherein the concentration of glyoxal, the concentration of vinyltris (beta-methoxyethoxy) silane, the concentration of a penetrant NR and the concentration of aluminum sulfate in the finishing liquid are respectively 80g/L, 10g/L, 0.8g/L and 20g/L, respectively.
Adding 10 parts by weight of the pretreated cotton fabric into a disperse dye preparation, wherein the disperse dye preparation contains 0.5 part by weight of disperse red dye and 0.015 part by weight of leveling agent, the bath ratio is 1:10, the initial dyeing temperature is 60 ℃, then the temperature is raised at the heating rate of 1.5 ℃/min, after the temperature reaches 100 ℃, the cotton fabric is subjected to heat preservation dyeing for 40min, then the temperature is lowered at the cooling rate of 2 ℃/min, the cotton fabric is taken out after the temperature is lowered to 50 ℃, then a mixed aqueous solution of caustic soda with the concentration of 1g/L and sodium hydrosulfite with the concentration of 3g/L is used, and the cotton fabric is subjected to reduction cleaning for 5min at the temperature of 100 ℃ at the bath ratio of 1:30, so that the dyed cotton fabric A3 is obtained.
Example 4
Soaking the cotton fabric in the finishing liquid for two times and rolling for 5 minutes at 80 ℃, baking the cotton fabric for 2 minutes at 160 ℃, taking out the treated cotton fabric, and washing the cotton fabric with water and drying the cotton fabric at 80 ℃, wherein in the finishing liquid, the concentration of glyoxal is 60g/L, the concentration of vinyltriethoxysilane is 7g/L, the concentration of penetrant NR is 0.5g/L, and the concentration of aluminum sulfate is 22 g/L.
Adding 10 parts by weight of the pretreated cotton fabric into a disperse dye preparation, wherein the disperse dye preparation contains 0.1 part by weight of disperse red dye and 0.02 part by weight of leveling agent, the bath ratio is 1:25, the initial dyeing temperature is 35 ℃, then the temperature is increased at the rate of 2 ℃/min, after the temperature reaches 80 ℃, the temperature is kept and dyed for 50min, then the temperature is decreased at the rate of 1.5 ℃/min, the temperature is decreased to 50 ℃, then the fabric is taken out, and then the dyed cotton fabric A4 is obtained by reducing and cleaning for 15min at 85 ℃ by using a mixed aqueous solution of 2g/L caustic soda and 3g/L sodium hydrosulfite at the bath ratio of 1: 25.
Example 5
Soaking the cotton fabric in the finishing liquid for two times and rolling for 5 minutes at 80 ℃, baking the cotton fabric for 2 minutes at 160 ℃, taking out the treated cotton fabric, and washing the cotton fabric with water and drying the cotton fabric at 80 ℃, wherein in the finishing liquid, the concentration of glyoxal is 70g/L, the concentration of vinyltrimethoxysilane is 9g/L, the concentration of a penetrant NR is 0.8g/L, and the concentration of aluminum sulfate is 28 g/L.
Adding 10 parts by weight of the pretreated cotton fabric into a disperse dye preparation, wherein the disperse dye preparation contains 0.3 part by weight of disperse red dye and 0.02 part by weight of leveling agent, the bath ratio is 1:15, the initial dyeing temperature is 50 ℃, then the temperature is increased at the rate of 2.5 ℃/min, after the temperature reaches 85 ℃, the temperature is kept and dyed for 55min, then the temperature is decreased at the rate of 2.5 ℃/min, the temperature is decreased to 50 ℃, then the fabric is taken out, and then the dyeing cotton fabric A5 is obtained by reducing and cleaning for 20min at 80 ℃ by using a mixed aqueous solution of 2g/L caustic soda and 3g/L sodium hydrosulfite at the bath ratio of 1: 15.
Comparative example 1
Disperse dye dyeing was performed on cotton fabric according to the method of example 1, except that the cotton fabric was directly dyed without permanent press pretreatment to obtain dyed cotton fabric D1.
Test example
(1) Measurement of K/S value of stained sample
The dyed samples A1-A5 and D1 were measured using a color measuring and matching instrument (available from Datacolor, Inc., USA, model No. Datacolor110), respectively, and the K/S values of the respective samples were measured, and the results of the measurements are shown in Table 1 below. The larger the K/S value is, the darker the surface color of the sample is, and the larger the dye concentration on the surface of the sample is; a smaller K/S value indicates a lighter surface color of the sample and a lower dye concentration at the surface of the sample.
(2) Measurement of color fastness
The dry rubbing fastnesses of the dyed samples A1-A5 and D1 were tested according to the GB/T3920-2008 method, and the results are shown in Table 1 below;
the wet rubbing fastness of the dyed samples A1-A5 and D1 was tested according to the GB/T3920-2008 method, and the results are shown in the following Table 1;
the dyed samples A1-A5 and D1 were tested for their fastness to washing with water according to GB/T5713-1997 and the results are given in Table 1 below.
(3) Non-ironing performance test
The dyed samples A1-A5 and D1 were tested using AATCC-142 standard, and the higher the DP level, the better the crease and permanent press resistance of the fabric, and the untreated greige cloth has a DP level of 1.0, and the results are shown in Table 1 below.
TABLE 1
The results in table 1 show that when the disperse dye dyeing method for glyoxal crosslinked cotton fabric is used for dyeing, the obtained cotton fabric can be dyed by using the disperse dye and has a good dyeing effect, which is embodied in that the dyed sample has darker surface color and better color fastness, and simultaneously has better non-ironing performance.
The preferred embodiments of the present invention have been described above in detail, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention, including combinations of various technical features in any other suitable way, and these simple modifications and combinations should also be regarded as the disclosure of the invention, and all fall within the scope of the invention.
Claims (13)
1. A disperse dye dyeing method of glyoxal cross-linked cotton fabric is characterized by comprising the following steps:
(1) carrying out non-ironing pretreatment: carrying out non-ironing finishing on the cotton fabric by using glyoxal and a silane coupling agent;
(2) dyeing with disperse dyes: carrying out disperse dye dyeing on the cotton fabric obtained after the pretreatment in the step (1) by using a disperse dye preparation;
wherein, in the step (2), the step of dyeing with the disperse dye comprises: adding the cotton fabric into a disperse dye preparation, wherein the bath ratio is 1:10-50, the initial dyeing temperature is 30-60 ℃, then heating up at the heating rate of 1-3 ℃/min, keeping the temperature and dyeing for 40-80min after the temperature reaches 70-100 ℃, then cooling down at the cooling rate of 1-3 ℃/min, taking out the fabric after the temperature is reduced to below 50 ℃, and reducing and cleaning.
2. The method according to claim 1, wherein in step (1), the process of permanent press finishing comprises: soaking and rolling the cotton fabric into finishing liquid containing glyoxal and a silane coupling agent for two times to ensure that the liquid carrying rate is 70-80%, drying at 75-85 ℃ for 3-10 minutes, baking at 150-170 ℃ for 1.5-3 minutes, and then taking out the treated cotton fabric to wash and dry at 75-85 ℃.
3. The method according to claim 2, characterized in that the finishing liquor containing glyoxal and silane coupling agent further contains a penetrant and aluminum sulfate, wherein the concentration of glyoxal is 30-100 g/L; the concentration of the silane coupling agent is 3-20 g/L; the concentration of the penetrating agent is 0.1-2 g/L; the concentration of the aluminum sulfate is 10-30 g/L.
4. The method according to claim 3, wherein the concentration of glyoxal is 50-80 g/L; the concentration of the silane coupling agent is 8-15 g/L; the concentration of the penetrating agent is 0.2-1 g/L; the concentration of the aluminum sulfate is 20-30 g/L.
5. The method according to any one of claims 1 to 4, wherein the silane coupling agent is at least one of vinyltriethoxysilane, vinyltrimethoxysilane and vinyltris (β -methoxyethoxy) silane.
6. The method of claim 1, wherein the disperse dye formulation is a disperse suspension of disperse dye in water, and the amount of the disperse dye is 0.5-5% of the mass of the cotton fabric.
7. The method of claim 6, wherein the disperse dye is at least one of disperse blue, disperse black, disperse gray, disperse red, disperse violet, disperse yellow, and disperse orange.
8. The method of claim 1, further comprising a leveling agent in the disperse dye formulation.
9. The method according to claim 8, wherein the leveling agent is used in an amount of 0.05% to 0.5% by mass of the disperse dye formulation.
10. The method according to claim 1, wherein the solution for reductive cleaning is a mixed aqueous solution of sodium hydrosulfite and caustic soda.
11. The method as claimed in claim 10, wherein the concentration of sodium hydrosulfite in the solution used for reductive cleaning is 0.5-4 g/L.
12. The method according to claim 10, wherein the concentration of caustic soda in the solution used for reductive cleaning is 0.5 to 4 g/L.
13. The method of claim 10, wherein the reductive cleaning conditions comprise: the bath ratio is 1:10-30, the temperature is 70-100 ℃, and the time is 5-30 min.
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