CN111434851A - Short-process dyeing and finishing process for nylon-cotton fabric - Google Patents

Short-process dyeing and finishing process for nylon-cotton fabric Download PDF

Info

Publication number
CN111434851A
CN111434851A CN201910035124.6A CN201910035124A CN111434851A CN 111434851 A CN111434851 A CN 111434851A CN 201910035124 A CN201910035124 A CN 201910035124A CN 111434851 A CN111434851 A CN 111434851A
Authority
CN
China
Prior art keywords
parts
nylon
finishing
bath
dyeing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910035124.6A
Other languages
Chinese (zh)
Inventor
刘瑞东
朱立钢
倪兴龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Yingfeng Technology Co ltd
Original Assignee
Zhejiang Yingfeng Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Yingfeng Technology Co ltd filed Critical Zhejiang Yingfeng Technology Co ltd
Priority to CN201910035124.6A priority Critical patent/CN111434851A/en
Publication of CN111434851A publication Critical patent/CN111434851A/en
Pending legal-status Critical Current

Links

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
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
    • D06P1/5207—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • D06P1/525—Polymers of unsaturated carboxylic acids or functional derivatives thereof
    • D06P1/5257—(Meth)acrylic acid
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
    • C08G77/18—Polysiloxanes containing silicon bound to oxygen-containing groups to alkoxy or aryloxy groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
    • C08G77/04—Polysiloxanes
    • C08G77/22—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen
    • C08G77/26—Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen and oxygen nitrogen-containing groups
    • 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
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
    • D06M15/65—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing epoxy groups
    • D06M15/652—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing epoxy groups comprising amino groups
    • 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
    • D06P1/0024—Dyeing and bleaching in one process
    • 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
    • D06P1/39—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 acid 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
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/24—Polyamides; Polyurethanes
    • D06P3/241—Polyamides; Polyurethanes using acid 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
    • 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
    • D06P3/62—Natural or regenerated cellulose using direct 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
    • 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
    • D06P3/8219—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and amide groups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/02—After-treatment
    • D06P5/04—After-treatment with organic compounds
    • D06P5/08—After-treatment with organic compounds macromolecular
    • 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
    • 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
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/34—Polyamides
    • 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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/50—Modified hand or grip properties; Softening compositions

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention discloses a short-process dyeing and finishing process of nylon-cotton fabric, which comprises the steps of 1) carrying out one-bath pretreatment, placing gray fabric into pretreatment finishing liquid according to a bath ratio of 1:10, heating to 100 ℃ at a speed of 2 ℃/min, carrying out heat preservation for 30-45min, cooling to below 50 ℃, discharging liquid and washing with water, 2) carrying out one-bath dyeing on the nylon-cotton fabric, placing the nylon-cotton fabric into a dyeing tank according to a bath ratio of 1:10, adding a dye, sodium acetate 15-20 g/L, acetic acid 3-6 g/L and a leveling agent 1-3 g/L, heating to 100 ℃ at a speed of 2 ℃/min, carrying out heat preservation for 30-60min, cooling to below 50 ℃, discharging waste liquid and washing with water, 3) carrying out soaping, namely, carrying out soaping agent 2 g/L, carrying out a bath ratio of 1:10, carrying out 90 ℃ and carrying out functional finishing for 10min, 4) preparing the finishing liquid according to the ratio, dipping the nylon-cotton fabric into the finishing liquid for 5min, carrying out two-.

Description

Short-process dyeing and finishing process for nylon-cotton fabric
Technical Field
The invention relates to a dyeing and finishing process of a textile, in particular to a short-process dyeing and finishing process of nylon-cotton fabric, belonging to the field of textile dyeing and finishing.
Background
The nylon fiber has good elasticity, high strength, light weight, wear resistance and good moisture absorption; the cotton fiber has soft hand feeling, good moisture absorption and air permeability, but is easy to wrinkle. The brocade-cotton blended fabric or brocade-cotton interweave has the advantages of two fibers and the defects of complementation, has excellent wearability and is an ideal fabric for manufacturing casual clothes and fashionable clothes.
When the nylon-cotton fabric is processed by the traditional dyeing and finishing process, the pretreatment is carried out according to the treatment procedures of cotton, including desizing, scouring and bleaching; the dyeing usually adopts a two-bath method, the cotton is dyed firstly, and then the chinlon is dyed, and the process has long process flow, time consumption and energy consumption.
If the traditional dyeing and finishing process is improved, a one-bath pretreatment method is adopted, and cotton and nylon are dyed in the same bath, the whole process can be obviously shortened.
Disclosure of Invention
The invention aims to provide a short-process dyeing and finishing process for nylon-cotton fabric. On the basis of the short-process pretreatment process of the nylon-cotton fabric, a short-process dyeing and finishing process of the nylon-cotton fabric is implemented by using a pretreatment agent compounded by a chelating dispersant and other auxiliaries, and the dyeing and finishing process adopts a one-bath pretreatment and nylon-cotton one-bath dyeing process, so that the dyeing and finishing process of the nylon-cotton fabric is shortened; the invention also discloses a cationic silicone oil emulsion for the after-finishing of the nylon-cotton fabric, thereby realizing softening and color fixing one-bath treatment.
In order to achieve the purpose, the invention adopts the technical scheme that:
a short-process dyeing and finishing process of nylon-cotton fabric, wherein the process flow is one-bath pretreatment → one-bath dyeing of nylon-cotton fabric → soaping → functional after-finishing;
1) one-bath pretreatment:
placing the grey cloth into pretreatment finishing liquid according to a bath ratio of 1:10, heating to 100 ℃ at a speed of 2 ℃/min, preserving heat for 30-45min, cooling to below 50 ℃, discharging liquid, and washing with water, wherein the pretreatment finishing liquid contains 8 g/L of one-bath treatment agent, 3 g/L of hydrogen peroxide, 3 g/L of sodium hydroxide, and the balance of water;
2) dyeing the nylon cotton fabric in one bath:
placing the pretreated nylon-cotton fabric into a dye vat according to a bath ratio of 1:10, adding direct dye, weakly acidic dye, 15-20 g/L of sodium acetate, 3-6 g/L of acetic acid and 1-3 g/L of leveling agent, heating to 100 ℃ at a speed of 2 ℃/min, preserving heat for 30-60min, cooling to below 50 ℃, discharging waste liquid, and washing with water;
3) soaping:
soaping agent 2 g/L, bath ratio 1:10, temperature 90 deg.C, time 10 min;
4) functional after finishing:
preparing finishing liquid according to the mass ratio of the silicone oil emulsion to the water of 60:500, and fully stirring and dissolving; soaking the nylon-cotton fabric in finishing liquor for 5min, then soaking and rolling for two times, wherein the mangle rolling rate is 85-100%, and drying at 180 ℃;
the one-bath treatment agent consists of 24-36 parts of chelating dispersant, L-8019-27 parts of castor oil polyoxyethylene ether E, 13-18 parts of dodecylbenzene sulfonic acid triethanolamine salt, 8-15 parts of rapid penetrating agent T and 400 parts of water;
the chelating dispersant is formed by polymerizing hydroxypropyl polyamino allyl polyoxyethylene ether, maleic anhydride mixed diester, acrylic acid, acrylamide, an initiator, sodium hydroxide, carbon disulfide, water and the like; during polymerization, 24 parts of hydroxypropyl polyamino allyl polyoxyethylene ether, 18 parts of maleic anhydride mixed diester, 12 parts of acrylic acid, 14 parts of acrylamide and 400 parts of water are placed in a reaction kettle, stirred and dissolved, nitrogen is introduced for 30min, the temperature is raised to 70 ℃, 0.7 part of initiator is added, the heat preservation reaction is carried out for 6h, then the temperature is reduced to below 20 ℃, and [ n (hydroxypropyl polyamino allyl polyoxyethylene ether) + n (maleic anhydride mixed diester)]：n(NaOH)：n(CS2) NaOH is added firstly and then CS is slowly added dropwise2Reacting at 25 ℃ for 3h, and then reacting at 45 ℃ for 2h to obtain the chelating dispersant; the molecular structure of the chelating dispersant is shown as a formula a;
Figure BDA0001945623570000031
the preparation method of the silicone oil emulsion comprises the steps of placing 15-24 parts of composite emulsifier and 200 parts of 150-one water in a reaction kettle, adding 50-70 parts of octamethylcyclotetrasiloxane, 6-10 parts of quaternary ammonium salt silane coupling agent shown as the formula b and 4-7 parts of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, stirring and emulsifying for 15min, heating to 70-85 ℃, adding 3-7 parts of sodium hydroxide, reacting for 3-5h, cooling to 40 ℃, neutralizing the emulsion to be neutral with acetic acid, heating the emulsion to 70-85 ℃, adding 8-14 parts of dimethyldiallyl ammonium chloride and 0.2-0.5 part of sodium persulfate, and reacting for 3h to obtain the silicone oil emulsion.
Figure BDA0001945623570000032
The direct dye is one or more of direct sun-fast turquoise blue G L, direct sun-fast black G, direct orange S, direct black EX, direct yellow G, direct scarlet 4BE, direct red brown RN, direct dark brown MM, and direct yellow R.
The weak acid dye is a conventional product in the field, such as weak acid Green GS C.I.Acid Green 25, weak acid Black BR C.I.Acid Black 24, weak acid bright Red B C.I.Acid Red 249, weak acid bright Red 10BC.I.Acid Violet 54, weak acid dark Blue 5R C.I.Acid Blue113, weak acid dark Blue GR C.I.Acid Blue120, weak acid bright yellow G C.I.Acid yellow 117, and the like.
The silicone oil emulsion is characterized in that the composite emulsifier consists of a cationic emulsifier and a nonionic emulsifier;
the cationic emulsifier is one of cetyl trimethyl ammonium bromide, octadecyl trimethyl ammonium chloride and dodecyl dimethyl benzyl ammonium chloride.
The nonionic emulsifier is fatty alcohol-polyoxyethylene ether, such as commercially available products AEO-3, 4, 5, 7, 9, 15, 20, 25 and the like.
The mass ratio of the cationic emulsifier to the nonionic emulsifier is 2: 1.
The soaping agent is a detergent 209.
The short-process dyeing and finishing process for the nylon-cotton fabric, disclosed by the invention, has the advantages that a chelating dispersant is compounded with conventional auxiliaries, alkali, hydrogen peroxide and other chemicals to form a pretreatment agent, the traditional pretreatment processes of desizing, refining and bleaching for the nylon-cotton fabric are reduced to a one-step one-bath method, and a one-bath method dyeing process for dyeing cotton by using a direct dye and dyeing nylon by using a weak acid dye is adopted, so that the dyeing and finishing process flow is shortened, the energy and resources are saved, and the production efficiency is improved; the dyed nylon-cotton fabric is subjected to after-treatment by using the cationic silicone oil emulsion, the cationic groups play a role in fixing color for direct dyes and acid dyes, and the epoxy groups react with hydroxyl groups in the cotton fibers, amino groups in the dyes and the like, so that the bonding fastness of the silicone oil and the fabric is enhanced, the nylon-cotton fabric has soft hand feeling, and the color fastness and the antibacterial performance of the fabric are improved.
Detailed Description
The invention discloses a short-process dyeing and finishing process for nylon-cotton fabric, which comprises the working procedures of one-bath pretreatment, one-bath dyeing and after-finishing.
The one-bath pretreatment combines the working procedures of desizing, refining and bleaching of the nylon-cotton fabric into one, and is completed by a one-bath one-step method.
Placing the nylon-cotton fabric grey cloth into pretreatment finishing liquid according to a bath ratio of 1: 10; heating to 100 deg.C at a speed of 2 deg.C/min, and maintaining for 30-45 min; cooling to below 50 deg.C, draining liquid, and washing with water.
The pretreatment finishing liquid contains 8 g/L of one-bath treatment agent, 3 g/L of hydrogen peroxide, 3 g/L of sodium hydroxide and the balance of water;
the one-bath treatment agent consists of 24-36 parts of chelating dispersant, L-8019-27 parts of castor oil polyoxyethylene ether E, 13-18 parts of dodecylbenzene sulfonic acid triethanolamine salt, 8-15 parts of rapid penetrating agent T and 400 parts of water;
the chelating dispersant is formed by polymerizing hydroxypropyl polyamino allyl polyoxyethylene ether, maleic anhydride mixed diester, acrylic acid, acrylamide, an initiator, sodium hydroxide, carbon disulfide, water and the like; during polymerization, 24 parts of hydroxypropyl polyamino allyl polyoxyethylene is firstly addedPlacing vinyl ether, 18 parts of maleic anhydride mixed diester, 12 parts of acrylic acid, 14 parts of acrylamide and 400 parts of water in a reaction kettle, stirring and dissolving, introducing nitrogen for 30min, heating to 70 ℃, adding 0.7 part of initiator, carrying out heat preservation reaction for 6h, then cooling to below 20 ℃, and adding N (hydroxypropyl polyamino allyl polyoxyethylene ether) + n (maleic anhydride mixed diester)]：n(NaOH)：n(CS2) NaOH is added firstly and then CS is slowly added dropwise2Reacting at 25 ℃ for 3h, and then reacting at 45 ℃ for 2h to obtain the chelating dispersant; the molecular structure of the chelating dispersant is shown as a formula a;
Figure BDA0001945623570000051
during pretreatment by a bath method, the heat preservation time is set according to the thickness degree of the fabric, and the heat preservation time of the thin fabric can be shorter, namely 30 min; the heat preservation time of the thick cloth can be set as 45 min.
The dyeing of cotton usually adopts reactive dyes under alkaline conditions, while chinlon adopts acid dyes under acid environment, which requires a two-bath process. However, the dyeing process is time-consuming, energy-consuming, water-consuming and cost-intensive. If direct dye is adopted to dye cotton and weak acid dye is adopted to dye chinlon, one-bath dyeing can be carried out under the weak acid condition, and the process is shortened.
During dyeing, the pretreated nylon-cotton fabric is placed in a dye vat according to the bath ratio of 1:10, a direct dye, a weak acid dye, 15-20 g/L of sodium acetate, 3-6 g/L of acetic acid and 1-3 g/L of a leveling agent are added, the temperature is increased to 100 ℃ at the speed of 2 ℃/min, the temperature is kept for 30-60min, the temperature is reduced to below 50 ℃, waste liquid is discharged, and the cotton fabric is washed with water.
The selection range of direct dyes is wide, such as direct fast turquoise blue G L, direct fast black G, direct orange S, direct black EX, direct yellow frozen G, direct bright red 4BE, direct red brown RN, direct dark brown MM, direct yellow R, etc.
Alternative weakly acidic dyes are of the kind conventionally used in the art, some of which are: weak acid Green gsc.i. acid Green 25, weak acid Black BR c.i. acid Black 24, weak acid bright Red B c.i. acid Red 249, weak acid bright Red 10B c.i. acid Violet 54, weak acid deep Blue 5R c.i. acid Blue113, weak acid deep Blue grc.i. acid Blue120, weak acid bright yellow g.i. acid yellow 117, and the like.
The leveling agent is a conventional dyeing auxiliary agent in the field, and can be used as long as the leveling agent is suitable for direct dye and weak acid dye.
As is well known to those skilled in the art, when the brocade and cotton fabrics are dyed, the dosage of sodium acetate, acetic acid, leveling agent and heat preservation time are related to the dosage of dye (shade), when the dosage of dye is small (light color), the dosage of auxiliary agent is small, and the heat preservation time is short; the dye consumption is large (deep color), the sodium acetate, the acetic acid and the leveling agent consumption is large, and the heat preservation time is long.
When the dye is used for dyeing cotton and nylon fibers, a certain amount of loose color always exists, the cotton and nylon fibers need to be cleaned through a soaping process to enhance the fastness of the dyed fabric, and when the soaping agent is used for soaping, the weight ratio of the soaping agent is 2 g/L, the bath ratio is 1:10, the temperature is 90 ℃, the time is 10min, and the soaping agent is a detergent 209.
In order to make the fabric soft in hand feeling and excellent in fastness, a softening and color fixing agent needs to be added during shaping. Preparing finishing liquid according to the mass ratio of the silicone oil emulsion to the water of 60:500, and fully stirring and dissolving; soaking the nylon-cotton fabric in the finishing liquid for 5min, then soaking and rolling for two times, wherein the mangle rolling rate is 85-100%, and drying at 180 ℃.
The preparation method of the silicone oil emulsion comprises the steps of placing 15-24 parts of composite emulsifier and 200 parts of 150-one water in a reaction kettle, adding 50-70 parts of octamethylcyclotetrasiloxane, 6-10 parts of quaternary ammonium salt silane coupling agent and 4-7 parts of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, stirring and emulsifying for 15min, heating to 70-85 ℃, adding 3-7 parts of sodium hydroxide, reacting for 3-5h, cooling to 40 ℃, neutralizing the emulsion with acetic acid to be neutral, heating the emulsion to 70-85 ℃, adding 8-14 parts of dimethyl diallyl ammonium chloride and 0.2-0.5 part of sodium persulfate, and reacting for 3h to obtain the silicone oil emulsion.
The polymer elastomer serving as a conventional cellulose fiber color fixing agent is grafted into an organic silicon macromolecular chain in a copolymerization mode, so that the silicone oil emulsion has higher cationic charge density, and the defects of layering, emulsion breaking, roller sticking and the like caused by surface tension difference in compounding of the conventional color fixing agent and a softening agent are overcome. After the brocade cotton fabric is dyed and soaped, the color fixing treatment is usually carried out to improve the color fastness of dyed products.
The compound emulsifier consists of a cationic emulsifier and a nonionic emulsifier.
The cationic emulsifier is one of cetyl trimethyl ammonium bromide, octadecyl trimethyl ammonium chloride and dodecyl dimethyl benzyl ammonium chloride.
The nonionic emulsifier is fatty alcohol-polyoxyethylene ether, such as commercially available products AEO-3, 4, 5, 7, 9, 15, 20, 23 and the like.
The mass ratio of the cationic emulsifier to the nonionic emulsifier is 2: 1.
In the technical scheme of the invention, the hydroxypropyl polyamine allyl polyoxyethylene ether is generated by ring-opening reaction of allyl polyoxyethylene glycidyl ether and triethylene tetramine, and the equation is shown as formula (1).
Figure BDA0001945623570000071
CH2＝CHCH2O(C2H4O)nCH2(CHCH2)O，n＝10-25。
The maleic acid mixed diester is prepared by the following steps: adding a molar ratio n (fatty alcohol-polyoxyethylene ether AEO-15) into a reactor provided with a stirrer, a thermometer and a reflux condenser: adding AEO-15 and maleic anhydride in the proportion of n (maleic anhydride) to 1:1.2, adding sodium acetate catalyst accounting for 1.2% of the mass of the maleic anhydride, heating to 105 ℃ under the protection of nitrogen, and reacting for 3 hours in a heat preservation manner; and then the molar ratio n (maleic anhydride): adding dodecyl monoethanolamine into a reactor, adding boric acid accounting for 1.5 percent of the mass of the maleic anhydride, heating to 130 ℃, and keeping the temperature for reaction for 4 hours to obtain the maleic acid mixed diester, wherein the n (dodecyl monoethanolamine) is 1: 1.05. The reaction process is shown in the following formulas (2) and (3).
Figure BDA0001945623570000081
Figure BDA0001945623570000082
In the technical scheme of the invention, the preparation method of the quaternary ammonium silane coupling agent comprises the following steps:
a. under the protection of nitrogen, adding 20.5g of 3-isocyanate propyl trimethoxy silane, 8.9g N, N-dimethyl ethylenediamine and 1g of stannous octoate into a reactor, stirring and reacting at 70 ℃ for 6h, and cooling to obtain a compound A, wherein the reaction formula is shown in (4);
b. adding 90g of chloropropene and 150g of tetrahydrofuran, stirring and mixing uniformly, slowly heating to 50 ℃, keeping the temperature for reaction for 20 hours, distilling under reduced pressure to remove small molecular low-boiling-point substances, separating the primary product by using a silica gel column, and leaching and separating by using a mixed solution of V chloroform and V methanol (10:2) to obtain the quaternary ammonium siloxane coupling agent, wherein the reaction equation (5) shows. The involved reaction equation is as follows:
Figure BDA0001945623570000083
Figure BDA0001945623570000084
example 1:
the chelating dispersant is formed by polymerizing hydroxypropyl polyamino allyl polyoxyethylene ether, maleic anhydride mixed diester, acrylic acid, acrylamide, an initiator, sodium hydroxide, carbon disulfide, water and the like;
the preparation method of the chelating dispersant comprises the following steps:
firstly, 24 parts of hydroxypropyl polyamino allyl polyoxyethylene ether, 18 parts of maleic anhydride mixed diester, 12 parts of acrylic acid, 14 parts of acrylamide and 400 parts of water are placed in a reaction kettle, stirred and dissolved, nitrogen is introduced for 30min, the temperature is raised to 70 ℃, 0.7 part of initiator is added, the reaction is kept for 6 hours, and then the temperature is lowered to 20 DEG CThe following formula is given as [ n (hydroxypropyl polyamino allyl polyoxyethylene ether) + n (maleic anhydride mixed diester)]：n(NaOH)：n(CS2) NaOH is added firstly and then CS is slowly added dropwise2Reacting at 25 ℃ for 3h, and then reacting at 45 ℃ for 2h to obtain the chelating dispersant; the molecular structure of the chelating dispersant is shown as a formula a;
Figure BDA0001945623570000091
wherein, the hydroxypropyl polyamine allyl polyoxyethylene ether is generated by the ring-opening reaction of allyl polyoxyethylene glycidyl ether and triethylene tetramine, and the equation is shown as the formula (1).
The maleic acid mixed diester is prepared by the following steps: adding a molar ratio n (fatty alcohol-polyoxyethylene ether AEO-15) into a reactor provided with a stirrer, a thermometer and a reflux condenser: adding AEO-15 and maleic anhydride in the proportion of n (maleic anhydride) to 1:1.2, adding sodium acetate catalyst accounting for 1.2% of the mass of the maleic anhydride, heating to 105 ℃ under the protection of nitrogen, and reacting for 3 hours in a heat preservation manner; and then the molar ratio n (maleic anhydride): adding dodecyl monoethanolamine into a reactor, adding boric acid accounting for 1.5 percent of the mass of the maleic anhydride, heating to 130 ℃, and keeping the temperature for reaction for 4 hours to obtain the maleic acid mixed diester, wherein the n (dodecyl monoethanolamine) is 1: 1.05. The reaction process is shown in the formulas (2) and (3).
The iron ion chelating value is 286mg/g, the copper ion chelating value is 317mg/g, the calcium ion chelating value is 273mg/g and the dispersing power is 138 mg/g.
Example 2:
a silicone oil emulsion is prepared by placing 15 parts of composite emulsifier and 150 parts of water in a reaction kettle, adding 50 parts of octamethylcyclotetrasiloxane, 6 parts of quaternary ammonium salt silane coupling agent (shown as the formula b) and 4 parts of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, stirring and emulsifying for 15min, heating to 70-85 ℃, adding 3 parts of sodium hydroxide, reacting for 3h, cooling to 40 ℃, neutralizing the emulsion with acetic acid to be neutral, heating the emulsion to 70 ℃, adding 8 parts of dimethyl diallyl ammonium chloride and 0.2 part of sodium persulfate, and reacting for 3h to obtain the silicone oil emulsion. The emulsifier is 10 parts of hexadecyl trimethyl ammonium bromide and 95 parts of AEO-95.
Example 3:
a silicone oil emulsion is prepared by placing 18 parts of composite emulsifier and 180 parts of water in a reaction kettle, adding 60 parts of octamethylcyclotetrasiloxane, 8 parts of quaternary ammonium salt silane coupling agent (shown as the formula b) and 6 parts of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, stirring and emulsifying for 15min, heating to 77 ℃, adding 5 parts of sodium hydroxide, reacting for 4h, cooling to 40 ℃, neutralizing the emulsion with acetic acid to neutrality, heating the emulsion to 80 ℃, adding 11 parts of dimethyldiallylammonium chloride and 0.4 part of sodium persulfate, and reacting for 3h to obtain the silicone oil emulsion. The emulsifier is 12 parts of octadecyl trimethyl ammonium chloride and 76 parts of AEO-76.
Example 4:
a silicone oil emulsion is prepared by placing 24 parts of composite emulsifier and 200 parts of water in a reaction kettle, adding 70 parts of octamethylcyclotetrasiloxane, 10 parts of quaternary ammonium salt silane coupling agent (shown as the formula b) and 7 parts of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, stirring and emulsifying for 15min, heating to 85 ℃, adding 7 parts of sodium hydroxide, reacting for 3-5h, cooling to 40 ℃, neutralizing the emulsion with acetic acid to be neutral, heating the emulsion to 85 ℃, adding 14 parts of dimethyl diallyl ammonium chloride and 0.5 part of sodium persulfate, and reacting for 3h to obtain the silicone oil emulsion. The emulsifier is dodecyl dimethyl benzyl ammonium chloride 16 parts and AEO-158 parts.
Example 5:
a short-process dyeing and finishing process of nylon-cotton fabric, wherein the process flow is one-bath pretreatment → one-bath dyeing of nylon-cotton fabric → soaping → functional after-finishing;
the specification of the fabric is as follows: brocade cotton twill 70D 60/160 100.
1) One-bath pretreatment:
placing the grey cloth into pretreatment finishing liquid according to a bath ratio of 1:10, heating to 100 ℃ at a speed of 2 ℃/min, preserving heat for 30min, cooling to below 50 ℃, draining liquid, washing with water, wherein the pretreatment finishing liquid contains 8 g/L of one-bath process treating agent, 3 g/L of hydrogen peroxide, 3 g/L of sodium hydroxide and the balance of water;
2) dyeing the nylon cotton fabric in one bath:
placing the pretreated brocade and cotton fabric into a dye vat according to the bath ratio of 1:10, adding direct dye, weakly acidic dye, 15 g/L of sodium acetate, 3 g/L of acetic acid and 1 g/L of leveling agent, heating to 100 ℃ at the speed of 2 ℃/min, keeping the temperature for 30min, cooling to below 50 ℃, discharging waste liquid, and washing with water, wherein the amount of direct bright red 4BE is 0.4 percent and the amount of weakly acidic bright red 10B is 0.6 percent according to owf;
3) soaping:
2 g/L of soaping agent, wherein the bath ratio is 1:10, the temperature is 90 ℃, and the time is 10min, and the soaping agent is a detergent 209;
4) functional after finishing:
preparing finishing liquid according to the mass ratio of the silicone oil emulsion to the water of 60:500, and fully stirring and dissolving; soaking the nylon-cotton fabric in finishing liquor for 5min, then soaking and rolling for two times, wherein the mangle rolling rate is 85-100%, and drying at 180 ℃;
the one-bath treatment agent consists of 24 parts of chelating dispersant, L-8019 parts of castor oil polyoxyethylene ether E, 13 parts of dodecylbenzene sulfonic acid triethanolamine salt, 8 parts of rapid penetrating agent T and 400 parts of water, wherein the chelating dispersant is prepared by the method of the embodiment 1;
the preparation method of the silicone oil emulsion comprises the steps of putting 15 parts of composite emulsifier and 150 parts of water into a reaction kettle, adding 50 parts of octamethylcyclotetrasiloxane, 6 parts of quaternary ammonium salt silane coupling agent (shown as the formula b) and 4 parts of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, stirring and emulsifying for 15min, heating to 70-85 ℃, adding 3 parts of sodium hydroxide, reacting for 3h, cooling to 40 ℃, neutralizing the emulsion with acetic acid to be neutral, heating the emulsion to 70 ℃, adding 8 parts of dimethyl diallyl ammonium chloride and 0.2 part of sodium persulfate, and reacting for 3h to obtain the silicone oil emulsion; the emulsifier is 10 parts of hexadecyl trimethyl ammonium bromide and 95 parts of AEO-95.
Example 6:
a short-process dyeing and finishing process of nylon-cotton fabric, wherein the process flow is one-bath pretreatment → one-bath dyeing of nylon-cotton fabric → soaping → functional after-finishing;
the specification of the fabric is as follows: the cotton and nylon herringbone 32X 140D/174X 86.
1) One-bath pretreatment:
placing the grey cloth into pretreatment finishing liquid according to a bath ratio of 1:10, heating to 100 ℃ at a speed of 2 ℃/min, preserving heat for 40min, cooling to below 50 ℃, draining liquid, washing with water, wherein the pretreatment finishing liquid contains 8 g/L of one-bath process treating agent, 3 g/L of hydrogen peroxide, 3 g/L of sodium hydroxide and the balance of water;
2) dyeing the nylon cotton fabric in one bath:
placing the pretreated brocade and cotton fabric into a dye vat according to a bath ratio of 1:10, adding a direct dye, a weakly acidic dye, 18G/L of sodium acetate, 4G/L of acetic acid and 2G/L of a leveling agent, heating to 100 ℃ at a speed of 2 ℃/min, keeping the temperature for 45min, cooling to below 50 ℃, discharging waste liquid, and washing with water, wherein the percentage by owf of direct yellow G is 1.6%, and the percentage by acid yellow G is 1.1%;
3) soaping:
2 g/L of soaping agent, wherein the bath ratio is 1:10, the temperature is 90 ℃, and the time is 10min, and the soaping agent is a detergent 209;
4) functional after finishing:
preparing finishing liquid according to the mass ratio of the silicone oil emulsion to the water of 60:500, and fully stirring and dissolving; soaking the nylon-cotton fabric in finishing liquor for 5min, then soaking and rolling for two times, wherein the mangle rolling rate is 85-100%, and drying at 180 ℃;
the one-bath treatment agent consists of 36 parts of chelating dispersant, E L-8027 parts of castor oil polyoxyethylene ether, 18 parts of dodecylbenzene sulfonic acid triethanolamine salt, 15 parts of rapid penetrating agent T and 400 parts of water, wherein the chelating dispersant is prepared by the method of the embodiment 1;
the preparation method of the silicone oil emulsion comprises the steps of putting 18 parts of composite emulsifier and 180 parts of water into a reaction kettle, adding 60 parts of octamethylcyclotetrasiloxane, 8 parts of quaternary ammonium salt silane coupling agent (shown as the formula b) and 6 parts of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, stirring and emulsifying for 15min, heating to 77 ℃, adding 5 parts of sodium hydroxide, reacting for 4h, cooling to 40 ℃, neutralizing the emulsion with acetic acid to be neutral, heating the emulsion to 80 ℃, adding 11 parts of dimethyl diallyl ammonium chloride and 0.4 part of sodium persulfate, and reacting for 3h to obtain the silicone oil emulsion; the emulsifier is 12 parts of octadecyl trimethyl ammonium chloride and 76 parts of AEO-76.
Example 7:
a short-process dyeing and finishing process of nylon-cotton fabric, wherein the process flow is one-bath pretreatment → one-bath dyeing of nylon-cotton fabric → soaping → functional after-finishing;
the specification of the fabric is as follows: the brocade cotton plain weave 168D 21/130 70.
1) One-bath pretreatment:
placing the grey cloth into pretreatment finishing liquid according to a bath ratio of 1:10, heating to 100 ℃ at a speed of 2 ℃/min, preserving heat for 45min, cooling to below 50 ℃, draining liquid, and washing with water, wherein the pretreatment finishing liquid contains 8 g/L of one-bath treatment agent, 3 g/L of hydrogen peroxide, 3 g/L of sodium hydroxide, and the balance of water;
2) dyeing the nylon cotton fabric in one bath:
placing the pretreated brocade and cotton fabric into a dye vat according to a bath ratio of 1:10, adding a direct dye, a weakly acidic dye, 20G/L of sodium acetate, 6G/L of acetic acid and 3G/L of a leveling agent, raising the temperature to 100 ℃ at a speed of 2 ℃/min, preserving the temperature for 30-60min, reducing the temperature to below 50 ℃, discharging waste liquid, and washing with water, wherein the dye vat is directly sun-proof turquoise blue G L, 2.2% and weakly acidic deep blue 5R 2.8% in terms of owf;
3) soaping:
2 g/L of soaping agent, wherein the bath ratio is 1:10, the temperature is 90 ℃, and the time is 10min, and the soaping agent is a detergent 209;
4) functional after finishing:
preparing finishing liquid according to the mass ratio of the silicone oil emulsion to the water of 60:500, and fully stirring and dissolving; soaking the nylon-cotton fabric in finishing liquor for 5min, then soaking and rolling for two times, wherein the mangle rolling rate is 85-100%, and drying at 180 ℃;
the one-bath treatment agent consists of 29 parts of chelating dispersant, E L-8023 parts of castor oil polyoxyethylene ether, 15 parts of triethanolamine dodecylbenzene sulfonate, 11 parts of rapid penetrant T and 400 parts of water;
the chelating dispersant was prepared by the method of example 1;
the preparation method of the silicone oil emulsion comprises the steps of putting 24 parts of composite emulsifier and 200 parts of water into a reaction kettle, adding 70 parts of octamethylcyclotetrasiloxane, 10 parts of quaternary ammonium salt silane coupling agent (shown as the formula b) and 7 parts of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, stirring and emulsifying for 15min, heating to 85 ℃, adding 7 parts of sodium hydroxide, reacting for 3-5h, cooling to 40 ℃, neutralizing the emulsion with acetic acid to be neutral, heating the emulsion to 85 ℃, adding 14 parts of dimethyl diallyl ammonium chloride and 0.5 part of sodium persulfate, and reacting for 3h to obtain the silicone oil emulsion; the emulsifier is dodecyl dimethyl benzyl ammonium chloride 16 parts and AEO-158 parts.
In examples 5-7, when the nylon-cotton fabric is dyed in one bath, dye solutions are prepared by red, yellow and blue colors respectively, three color samples are dyed, and relevant performance tests are carried out on the three color samples respectively, and the results are as follows:
TABLE 1 colour fastness of brocade-cotton fabric dyeings
Figure BDA0001945623570000141
As can be seen from Table 1, the short-process dyeing and finishing process for nylon/cotton fabric is adopted, so that the colorfastness to washing and the rubbing of the dyed product are good, the fabric is soft in hand feeling, and the steps of the process are reasonably and feasible.
The color fastness to washing is tested according to GB/T3921.1-2008 method for testing the color fastness to washing of textiles.
The color fastness to rubbing is tested according to GB/T3920-2008 "test method for color fastness to rubbing of textiles".
Testing of bending stiffness of fabric: and testing the softness of the nylon-cotton fabric by using a DC-RRY 1000 softness tester, wherein the smaller the tested numerical value is, the softer the fabric is, and the unit is mN.
The chelating and dispersing force test method of the chelating dispersant is as follows:
1. determination of chelated calcium ions
Accurately weighing 2g of sample (accurate to 0.0001g), adding distilled water to prepare a 100m L solution, then transferring a 25m L sample solution into an erlenmeyer flask, adding an ammonium chloride buffer solution (pH 10)5m L and a small amount of a 2% sodium oxalate solution by mass, titrating with a 0.1 mol/L calcium acetate standard solution until a permanent white precipitate is generated as an end point, simultaneously carrying out a blank test according to the steps, wherein the milligrams of CaCO3 chelated by each gram of chelating agent is the chelation value of calcium ions and is calculated according to the following formula:
A＝[(V1-V0)Ccalcium carbonate×M]/(G×25/100)
I.e. A ═ V1-V0) CCalcium carbonate×4M]/G
In the formula, C calcium is the concentration of a calcium acetate standard solution, mol/L;
v1 is the volume of calcium acetate standard solution consumed by the sample solution, m L;
v0 is the volume of calcium acetate standard titration solution consumed for the blank test, m L;
g is sample mass, G;
a is the value of chelated calcium ions of the sample;
m is 100 and represents the molar mass of the chelated calcium carbonate.
2. Determination of chelated ferric ions
Accurately weighing 1g sample (accurate to 0.0001g), adding distilled water to obtain 100m L solution, transferring 10m L sample solution into a conical flask, adding distilled water 40m L, adjusting pH to 12 with 30% sodium hydroxide solution, and adding 1 g/L Fe3+The standard solution was titrated until permanent turbidity was produced (note that during titration, if the pH was changed, 30% sodium hydroxide solution was added to adjust to maintain the pH at 12). Blank tests were performed simultaneously according to the above procedure. The milligrams of complexing ferric ion per gram of chelating agent is the milliliters of solution consumed during the standard solution dropping. The chelation value of the ferric ion was calculated as follows:
A＝(V1-V0)/(G×10/100)
that is, A ═ (V1-V0) × 10/G
Wherein V1 is the volume of the sample solution consuming the ferric iron standard solution, m L;
v0 is the volume of ferric standard titration solution consumed for the blank test, m L;
g is sample mass, G;
a is the value of the sample chelating ferric ions.
3. Determination of chelated divalent copper ions
Accurately weighing 1g sample (accurate to 0.0001g), adding distilled water to obtain 100m L solution, transferring 10m L sample solution into a conical flask, adding distilled water 40m L, adjusting pH to 12 with 30% sodium hydroxide solution, and adding 1 g/L Cu2+Standard solutionTitration was carried out until permanent turbidity was produced (note that during titration, if the pH was changed, 30% sodium hydroxide solution was added to adjust the pH to 12). Blank tests were performed simultaneously according to the above procedure. The milligram of the chelating agent complexing the divalent copper ions per gram is the milliliter consumed by the standard solution drop timing. The chelation value of copper ions was calculated as follows:
A＝(V1-V0)/(G×10/100)
that is, A ═ (V1-V0) × 10/G
Wherein V1 is the volume of the sample solution consuming the copper ion standard solution, m L;
v0 is the volume of the standard titration solution consuming copper ions for the blank test, m L;
g is sample mass, G;
a is the value of chelated copper ions of the sample.
4. Measurement of Dispersion force
Accurately weighing 4g of sample (accurate to 0.0001g) to prepare 100m L solution, transferring 25m L sample solution into an erlenmeyer flask, adding 10% sodium carbonate solution 10m L and 30m L distilled water, titrating with 0.1 mol/L calcium acetate standard solution until permanent white precipitate is generated as an end point, simultaneously making a blank test, and calculating the dispersion force according to the following formula:
F＝(V1-V0)C×100/(G×25/100)
i.e. F ═ (V1-V0) C × 400/G
C is the concentration of a calcium acetate standard solution, mol/L;
v0 is the volume of calcium acetate standard solution consumed in the blank test, m L;
v1 is the volume of calcium acetate standard solution consumed by the sample solution, m L;
g is the sample mass, G.

Claims (8)

1. A short-process dyeing and finishing process of nylon-cotton fabric, wherein the process flow is one-bath pretreatment → one-bath dyeing of nylon-cotton fabric → soaping → functional after-finishing;
1) one-bath pretreatment:
placing the grey cloth into pretreatment finishing liquid according to a bath ratio of 1:10, heating to 100 ℃ at a speed of 2 ℃/min, preserving heat for 30-45min, cooling to below 50 ℃, discharging liquid, and washing with water, wherein the pretreatment finishing liquid contains 8 g/L of one-bath treatment agent, 3 g/L of hydrogen peroxide, 3 g/L of sodium hydroxide, and the balance of water;
2) dyeing the nylon cotton fabric in one bath:
placing the pretreated nylon-cotton fabric into a dye vat according to a bath ratio of 1:10, adding direct dye, weakly acidic dye, 15-20 g/L of sodium acetate, 3-6 g/L of acetic acid and 1-3 g/L of leveling agent, heating to 100 ℃ at a speed of 2 ℃/min, preserving heat for 30-60min, cooling to below 50 ℃, discharging waste liquid, and washing with water;
3) soaping:
soaping agent 2 g/L, bath ratio 1:10, temperature 90 deg.C, time 10 min;
4) functional after finishing:
preparing finishing liquid according to the mass ratio of the silicone oil emulsion to the water of 60:500, and fully stirring and dissolving; soaking the nylon-cotton fabric in finishing liquor for 5min, then soaking and rolling for two times, wherein the mangle rolling rate is 85-100%, and drying at 180 ℃;
the one-bath treatment agent consists of 24-36 parts of chelating dispersant, L-8019-27 parts of castor oil polyoxyethylene ether E, 13-18 parts of dodecylbenzene sulfonic acid triethanolamine salt, 8-15 parts of rapid penetrating agent T and 400 parts of water;
the chelating dispersant is formed by polymerizing hydroxypropyl polyamino allyl polyoxyethylene ether, maleic anhydride mixed diester, acrylic acid, acrylamide, an initiator, sodium hydroxide, carbon disulfide, water and the like; during polymerization, 24 parts of hydroxypropyl polyamino allyl polyoxyethylene ether, 18 parts of maleic anhydride mixed diester, 12 parts of acrylic acid, 14 parts of acrylamide and 400 parts of water are placed in a reaction kettle, stirred and dissolved, nitrogen is introduced for 30min, the temperature is raised to 70 ℃, 0.7 part of initiator is added, the heat preservation reaction is carried out for 6h, then the temperature is reduced to below 20 ℃, and [ n (hydroxypropyl polyamino allyl polyoxyethylene ether) + n (maleic anhydride mixed diester)]：n(NaOH)：n(CS2) NaOH is added firstly and then CS is slowly added dropwise2Reacting at 25 ℃ for 3h, and then reacting at 45 ℃ for 2h to obtain the chelating dispersant; the molecular structure of the chelating dispersant is shown as a formula a;
Figure FDA0001945623560000021
the preparation method of the silicone oil emulsion comprises the steps of placing 15-24 parts of composite emulsifier and 200 parts of 150-one water in a reaction kettle, adding 50-70 parts of octamethylcyclotetrasiloxane, 6-10 parts of quaternary ammonium salt silane coupling agent and 4-7 parts of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, stirring and emulsifying for 15min, heating to 70-85 ℃, adding 3-7 parts of sodium hydroxide, reacting for 3-5h, cooling to 40 ℃, neutralizing the emulsion with acetic acid to be neutral, heating the emulsion to 70-85 ℃, adding 8-14 parts of dimethyl diallyl ammonium chloride and 0.2-0.5 part of sodium persulfate, and reacting for 3h to obtain the silicone oil emulsion.
2. The short-process dyeing and finishing process for nylon-cotton fabric according to claim 1, characterized in that the direct dye is one or more of direct fast turquoise blue G L, direct fast black G, direct orange S, direct black EX, direct yellow G, direct bright red 4BE, direct red brown RN, direct dark brown MM, and direct yellow R.
3. The short-process dyeing and finishing process for nylon, cotton and fabric according to claim 1, characterized in that: the weakly acidic dye is one or more of weakly acidic green GS, weakly acidic black BR, weakly acidic bright red B, weakly acidic bright red 10B, weakly acidic deep blue 5R, weakly acidic deep blue GR and weakly acidic bright yellow G.
4. The short-process dyeing and finishing process for nylon, cotton and fabric according to claim 1, characterized in that: the compound emulsifier consists of a cationic emulsifier and a nonionic emulsifier.
5. The short-process dyeing and finishing process for nylon, cotton and fabric according to claim 4, characterized in that: the cationic emulsifier is one of cetyl trimethyl ammonium bromide, octadecyl trimethyl ammonium chloride and dodecyl dimethyl benzyl ammonium chloride.
6. The short-process dyeing and finishing process for nylon, cotton and fabric according to claim 4, characterized in that: the nonionic emulsifier is fatty alcohol-polyoxyethylene ether.
7. The short-process dyeing and finishing process for nylon, cotton and fabric according to claim 4, characterized in that: the mass ratio of the cationic emulsifier to the nonionic emulsifier is 2: 1.
8. The short-process dyeing and finishing process for nylon, cotton and fabric according to claim 1, characterized in that: the soaping agent is a detergent 209.
CN201910035124.6A 2019-01-15 2019-01-15 Short-process dyeing and finishing process for nylon-cotton fabric Pending CN111434851A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910035124.6A CN111434851A (en) 2019-01-15 2019-01-15 Short-process dyeing and finishing process for nylon-cotton fabric

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910035124.6A CN111434851A (en) 2019-01-15 2019-01-15 Short-process dyeing and finishing process for nylon-cotton fabric

Publications (1)

Publication Number Publication Date
CN111434851A true CN111434851A (en) 2020-07-21

Family

ID=71580686

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910035124.6A Pending CN111434851A (en) 2019-01-15 2019-01-15 Short-process dyeing and finishing process for nylon-cotton fabric

Country Status (1)

Country Link
CN (1) CN111434851A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108004695A (en) * 2017-12-30 2018-05-08 绍兴恒钧环保科技有限公司 Wash the viscous blended yarn weaved fabric short route dyeing and finishing technology of brocade
CN108086014A (en) * 2017-12-30 2018-05-29 绍兴恒钧环保科技有限公司 Polyester cotton short route dyeing and finishing technology
CN108179621A (en) * 2017-12-30 2018-06-19 绍兴恒钧环保科技有限公司 Cotton short-flow pre-treating process
CN108286197A (en) * 2017-12-30 2018-07-17 绍兴恒钧环保科技有限公司 Bright and beautiful binding textiles short route dyeing and finishing technology

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108004695A (en) * 2017-12-30 2018-05-08 绍兴恒钧环保科技有限公司 Wash the viscous blended yarn weaved fabric short route dyeing and finishing technology of brocade
CN108086014A (en) * 2017-12-30 2018-05-29 绍兴恒钧环保科技有限公司 Polyester cotton short route dyeing and finishing technology
CN108179621A (en) * 2017-12-30 2018-06-19 绍兴恒钧环保科技有限公司 Cotton short-flow pre-treating process
CN108286197A (en) * 2017-12-30 2018-07-17 绍兴恒钧环保科技有限公司 Bright and beautiful binding textiles short route dyeing and finishing technology

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
张建春等: "《化纤仿毛技术原理与生产实践》", 大连：大连理工大学出版社, pages: 271 - 272 *

Similar Documents

Publication Publication Date Title
CN101381963A (en) Salt free dyeing with reactive dye
CN105696386B (en) A kind of polyester fabric is scouringed and bleaching dyeing technique
CN104892832B (en) A kind of preparation method of micro-cross-linked polymethyl acyloxyethyl trimethyl ammonium chloride modification color fixing agent
CN108166241A (en) Cotton knitwear short route dyeing and finishing technology method
CN101413207B (en) Dyeing and finishing process for sea silk fabric
CN106884338A (en) A kind of dyeing technique of cotton knitwear
CN111172791B (en) Enzyme dyeing one-bath dyeing process for cotton fabric
CN112663353A (en) Preparation method of plant dye yarn-dyed fabric
CN110939002A (en) Polyester-cotton blended fabric and preparation method and application thereof
CN113652871B (en) Multifunctional scouring agent for cotton knitting continuous steaming scouring and bleaching and preparation method thereof
CN111434848A (en) Short-process dyeing and finishing process for polyester-cotton fabric
CN113279270A (en) Reactive dye, preparation method thereof and finished clothes
CN116084192B (en) Dyeing process of woven polyester fabric
CN110080016B (en) Scouring and dyeing soap boiling one-bath process for cotton fabric by using reactive dye
CN111434851A (en) Short-process dyeing and finishing process for nylon-cotton fabric
CN111411537A (en) Short-process dyeing and finishing process for polyester-nylon viscose fabric
CN113062131B (en) Short-flow processing technology for polyester-cotton knitted fabric
CN112878069B (en) Polyamide fabric dyeing process with high dye-uptake
CN111434849A (en) Short-process dyeing and finishing process for nylon-cotton fabric
CN111424443A (en) Short-process dyeing and finishing process for polyester-nylon viscose fabric
CN111441181A (en) Short-process dyeing and finishing process for brocade-viscose fabric
CN111455697A (en) Short-process dyeing and finishing process for cotton knitted fabric
CN114753172B (en) Color fixing process for dyeing with vegetable dye
CN111270537B (en) Cotton fabric refining dyeing one-bath dyeing process
CN114921980B (en) Supercritical CO 2 Method for assisting in printing cationic dye

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20200721

RJ01 Rejection of invention patent application after publication