CN116516700B - Pretreatment process for nylon ink-jet printing - Google Patents

Pretreatment process for nylon ink-jet printing Download PDF

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CN116516700B
CN116516700B CN202310606133.2A CN202310606133A CN116516700B CN 116516700 B CN116516700 B CN 116516700B CN 202310606133 A CN202310606133 A CN 202310606133A CN 116516700 B CN116516700 B CN 116516700B
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pretreatment process
ink
nylon
cationic polyacrylamide
drying
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CN116516700A (en
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萧兴水
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Shaoxing Qianyong Textile Co ltd
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Shaoxing Qianyong Textile Co ltd
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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
    • D06P5/30—Ink jet printing
    • 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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/51—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof
    • D06M11/55—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with sulfur, selenium, tellurium, polonium or compounds thereof with sulfur trioxide; with sulfuric acid or thiosulfuric acid or their salts
    • 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
    • D06M13/224—Esters of carboxylic acids; Esters of carbonic acid
    • D06M13/2246—Esters of unsaturated carboxylic acids
    • 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
    • D06M13/322—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 nitrogen
    • D06M13/402—Amides imides, sulfamic acids
    • D06M13/41—Amides derived from unsaturated carboxylic acids, e.g. acrylamide
    • 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
    • D06M13/322—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 nitrogen
    • D06M13/402—Amides imides, sulfamic acids
    • D06M13/432—Urea, thiourea or derivatives thereof, e.g. biurets; Urea-inclusion compounds; Dicyanamides; Carbodiimides; Guanidines, e.g. dicyandiamides
    • 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
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • 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
    • D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/285—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acid amides or imides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/38—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using reactive dyes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/39—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
    • 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
    • D06P3/02—Material containing basic nitrogen
    • D06P3/04—Material containing basic nitrogen containing amide groups
    • D06P3/24—Polyamides; Polyurethanes
    • D06P3/248—Polyamides; Polyurethanes using reactive dyes
    • 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
    • D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Coloring (AREA)

Abstract

The invention discloses a nylon ink-jet printing pretreatment process, which provides a sizing prescription and a fixation method, wherein vinyl-terminated cationic polyacrylamide is added into pretreatment slurry to provide more dyeing bases for nylon fabrics and improve the dyeing rate; the N, N' -dihydroxyethyl bisacrylamide and the methacrylate monomer are cooperated to carry out free radical reaction in the high-temperature steaming process, so that the crosslinking film is formed, and the fixation rate is improved; the process is simultaneously suitable for ink jet printing of reactive dye and acid dye ink, and the nylon digital printing fabric with good level dyeing property and high color fastness is obtained.

Description

Pretreatment process for nylon ink-jet printing
Technical Field
The invention belongs to the technical field of digital printing of fabrics, and particularly relates to a nylon ink-jet printing pretreatment process.
Background
The inkjet printing of the textile generally adopts reactive dye and acid dye, and the acid dye can be combined with the terminal amino groups of the nylon fibers through strong ionic bonds and electrostatic acting force to obtain a better dyeing effect, so that the dye becomes the first-choice dye for dyeing the nylon fibers; nylon fibers are sensitive to acid, so that dyeing is required in a weak acid-alkaline environment, but nylon dyed by weak acid dyes has poor wet rubbing fastness and light fastness, and is often improved by adopting a mode of dyeing with reactive dyes. However, both acid dyes and reactive dyes have a common disadvantage of high adsorption and coloring speeds and poor ink permeation uniformity. Meanwhile, the nylon has lower amino content, limited dyeing seats on the fabric, and a large amount of residual dye floats on the surface of the printed fabric, so that a large amount of water washing, soaping and water washing are required after printing to reduce floating color and improve color fastness, serious waste of water resources can be caused, the reusability is poor, and the environment-friendly production concept of energy conservation and emission reduction is not met. In addition, the optimal pH value of the acid dye is 4.5-6, and if the reactive dye is dyed on the nylon surface in a covalent bond crosslinking mode, the dyeing needs to be carried out under alkaline conditions, so that the nylon printing technology which is applicable to both the acid dye and the reactive dye dyeing has severe requirements on dye selection and fabric pretreatment.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a nylon ink-jet printing pretreatment process, which provides a sizing prescription and a fixation method, is simultaneously suitable for ink-jet printing of reactive dye and acid dye ink, and obtains nylon digital printing fabrics with good leveling property and high color fastness.
Because both the water-soluble reactive dye and the acid dye generally have sulfonic acid groups, the present invention pretreats nylon fabrics with an acidic paste.
The nylon ink-jet printing pretreatment process comprises the following steps:
preparing pretreatment slurry, sizing fabric, drying (70-100 ℃), digital printing, drying (70-100 ℃), spraying liquid, steaming (102 ℃ normal pressure saturated steam, 10-30 min), washing (hot water 40 ℃ for 5min multiplied by 2), soaping (bath ratio 1:20,1g/L soaping agent DM-1522, soaping at 70 ℃ for 20 min), washing (cold water, 5 min), and drying (120 ℃).
S1, preparing pretreatment slurry, which comprises the following components: 3-6% of guar gum, 0.5-1.2% of vinyl-terminated cationic polyacrylamide, 0-0.7% of N, N' -dihydroxyethyl bisacrylamide, 2-4% of methacrylate monomer, 3-5% of ammonium sulfate, 3-5% of urea and the balance of water.
The methacrylate monomer is selected from one or a combination of methyl methacrylate, ethyl methacrylate, propyl methacrylate, methyl acrylate, ethyl acrylate and hydroxyethyl methacrylate.
S2, fabric sizing: two-dip two-roll, the roll pressure is 9.8N/cm 2 ；
S4, digital printing, wherein the ink is one or a combination of reactive dye and acid dye.
S5, spraying liquid: the initiator water mixture is applied by spraying, and the components comprise: azo initiator V-50, potassium persulfate; the concentrations are 0.6wt% of azo initiator V-50 and 0.1wt%, respectively; the ratio of the applied amount to the ink jet printed face value was 1mL:0.25m 2 。
The preparation method of the vinyl-terminated cationic polyacrylamide comprises the following steps:
(4) Taking bis (carboxymethyl) trithiocarbonate as a chain transfer agent, and under the initiation of azodiisobutyronitrile, carrying out reversible addition-fragmentation chain transfer reaction on acrylamide and an ammonium salt monomer to prepare carboxyl-terminated cationic polyacrylamide;
(5) Carboxyl-terminated cationic polyacrylamide and SOCl with triethylamine as acid binding agent 2 Reacting to obtain an acyl chloride product;
(6) And (3) further reacting the acyl chloride product obtained in the step (2) with hydroxyethyl methacrylate to obtain vinyl-terminated cationic polyacrylamide.
The ammonium salt monomer may be selected from: one or a combination of acryloyloxyethyl trimethyl ammonium chloride, methacryloyloxyethyl trimethyl ammonium chloride and methacryloyloxyethyl dimethyl benzyl ammonium chloride.
The invention has the following advantages and beneficial effects:
according to the pretreatment process for the nylon ink-jet printing, provided by the invention, the vinyl-terminated cationic polyacrylamide is added into the pretreatment slurry, so that on one hand, ammonium salt on the molecular chain provides more dyeing bases for nylon, the dye uptake of the dye is improved, the flooding is reduced, and the color fastness is improved; on the other hand, vinyl-terminated cationic polyacrylamide is matched with N, N' -dihydroxyethyl bisacrylamide and methacrylate monomers to carry out free radical reaction in the high-temperature steaming process under an initiator, so that the vinyl-terminated cationic polyacrylamide is crosslinked into a film and is adhered to the surface of a fabric to carry out fixation, thereby further reducing flooding and improving color fastness; in the other aspect, macromolecular cationic polyacrylamide and small molecular N, N' -dihydroxyethyl bisacrylamide are compatible with the nylon molecular structure, the swelling of the fiber is quickened in the steaming stage, the amorphous area is enlarged, and dye molecules can enter the fiber easily, so that the dye uptake is improved.
Drawings
FIG. 1 is a vinyl-terminated cationic polyacrylamide prepared in example 1 1 H-NMR。
Detailed Description
In the present invention, the preparation materials used are commercially available products well known to those skilled in the art, unless otherwise specified. The technical solutions of the present invention will be clearly and completely described in the following in connection with the embodiments of the present invention. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Preparing vinyl-terminated cationic polyacrylamide.
(1) Adding bis (carboxymethyl) trithiocarbonate, acrylamide, methacryloxyethyl trimethyl ammonium chloride and azodiisobutyronitrile into a reaction kettle, replacing nitrogen for three times, injecting dioxane, heating to 70 ℃ for reaction for 10 hours, stopping the reaction, dissolving with tetrahydrofuran, precipitating with n-hexane, repeating for three times, and drying to obtain carboxyl-terminated cationic polyacrylamide; the addition amount of azobisisobutyronitrile was 0.5wt% of the total monomer amount.
The combinations of monomers I and II are shown in Table 1.
TABLE 1
The number average molecular weight was determined by gel chromatography (GPC): measuring molecular weight and distribution of sample with Waters515-2414 gel permeation chromatograph, using chloroform as mobile phase, flow rate of 1mL/min, using Shodex K-804L column, testing column temperature of 40deg.C, detector temperature of 35deg.C, and using monodisperse PS as standard sample
(2) Adding carboxyl-terminated cationic polyacrylamide and triethylamine into a reaction bottle, dissolving with THF, heating to 60 ℃, and dripping SOCl 2 After the completion of the dropwise addition, the reaction was continued for 3 hours, and the mixture after the reaction was filtered and distilled under reduced pressure at 80℃to remove excess SOCl 2 And THF. SOCl 2 The molar amount of the additive was 4 times the molar amount of the carboxyl-terminated cationic polyacrylamide (calculated as the molecular weight in Table 1), and the molar amount of the additive triethylamine was SOCl 2 3 times of (3).
(3) Dissolving the product obtained in the step (2) with tetrahydrofuran again, heating to 60 ℃, adding hydroxyethyl methacrylate for reaction for 6 hours, filtering the reaction liquid, distilling under reduced pressure to remove the solvent, dissolving the crude product with chloroform again, adding water for extraction for 3 times, and taking organic phase and drying to obtain vinyl-terminated cationic polyacrylamide (recorded as CP-V-1-3). The molar quantity of the added hydroxyethyl methacrylate is 3 times of the molar quantity of the cationic polyacrylamide of the carboxyl end group in the step (2).
Determination of the ratio of the building blocks of the polymers by nuclear magnetic hydrogen spectrometry (amide: ammonium salt=x: y), determination by AVANCE III-400, solvent CDCl 3 。
Vinyl-terminated cationic polyacrylamide prepared from CP-COOH-1 (CP-V-1) 1 For example, the H-NMR spectrum (see FIG. 1) was calculated as follows:
wherein S is CONH2 CONH in the corresponding acrylamide units 2 Proton peak area at 4.56 ppm; s is S COOCH2 COOCH in the corresponding ammonium salt unit 2 Proton peak area at 7.21 ppm.
Structural unit ratio x of CP-V-1 to 3: y is 7.25, 5.39, 5.11, respectively.
Example 2
The nylon ink-jet printing pretreatment process comprises the following steps:
preparing pretreatment slurry, sizing fabric, drying (80 ℃), digital printing, drying (80 ℃), spraying liquid, steaming (102 ℃ normal pressure saturated steam, 10-30 min), washing (hot water 40 ℃,5min multiplied by 2), soaping (bath ratio 1:20,1g/L soaping agent DM-1522, 70 ℃ soaping for 20 min), washing (cold water, 5 min), and drying (120 ℃).
S2, fabric sizing: two-dip two-roll, the roll pressure is 9.8N/cm 2 ；
The fabric was 3.3tex/3.3tex (30D/30D), 745 pieces/10 cm. Times.633 pieces/10 cm,40g/m 2 Nylon spinning.
S4, digital printing, wherein the ink is one or a combination of reactive dye and acid dye.
Reactive ink printing: using a VEGA5000 inkjet printer (hangzhou macrogol digital technologies, inc.); reactive dye inks of cyan, magenta, yellow, and black were used and purchased from Hangzhou Honghua digital technologies Inc.
Acid ink printing: a DTBS-1638 belt type digital printing machine is used and is purchased from Chengdu Jin Zhida digital technology Limited liability company; cyan, magenta, yellow, black acid dye inks (silk, et) were used, available from Hongsheng digital technologies, inc.
The printing steaming time of the acid ink is 15min, and the printing steaming time of the active ink is 30min.
S5, spraying liquid: the initiator water mixture is applied by spraying, and the components comprise: azo initiator V-50, potassium persulfate; the concentrations are 0.6wt% of azo initiator V-50 and 0.1wt%, respectively; the ratio of the applied amount to the ink jet printed face value was 1mL:0.25m 2 。
A pretreatment slurry comprising the following components: guar gum 4%, CP-V-1 1%, N' -dihydroxyethyl bisacrylamide 0.2%, ethyl methacrylate 4%, ammonium sulfate 4%, urea 3% and the balance of water.
Guar gum is available from zhengzhou pulvis chemical products limited.
Example 3
A pretreatment slurry comprising the following components: guar gum 4%, CP-V-2 1%, N' -dihydroxyethyl bisacrylamide 0.2%, ethyl methacrylate 4%, ammonium sulfate 4%, urea 3% and the balance of water.
The remainder was the same as in example 2.
Example 4
A pretreatment slurry comprising the following components: guar gum 4%, CP-V-3 1%, N' -dihydroxyethyl bisacrylamide 0.2%, ethyl methacrylate 4%, ammonium sulfate 4%, urea 3% and the balance of water.
The remainder was the same as in example 2.
Example 5
A pretreatment slurry comprising the following components: guar gum 4%, CP-V-1.5%, N' -dihydroxyethyl bisacrylamide 0.7%, ethyl methacrylate 4%, ammonium sulfate 4%, urea 3% and the balance water.
The remainder was the same as in example 2.
Example 6
A pretreatment slurry comprising the following components: guar gum 4%, CP-V-1.2%, ethyl methacrylate 4%, ammonium sulfate 4%, urea 3% and the balance of water.
The remainder was the same as in example 2.
Comparative example 1
A pretreatment slurry comprising the following components: guar gum 5%, ammonium sulfate 5%, urea 3% and the balance water.
The remainder was the same as in example 2.
Comparative example 2
A pretreatment slurry comprising the following components: guar gum 4%, N' -dihydroxyethyl bisacrylamide 1.2%, ethyl methacrylate 4%, ammonium sulfate 4%, urea 3% and the balance of water.
The remainder was the same as in example 2.
Test example 1
The black (K) and cyan (C), magenta (M), yellow (Y) and black (K) monochromatic color blocks are printed, the K/S value of the printing area is measured by a Datacolor color meter, and the sum of K/S is calculated.
Test example 2
And (6) measuring the fixation rate.
Wherein, (K/S) f is the color depth of the front surface of the printed fabric after soaping; (K/S) f0 The color of the front surface is deep before the soaping of the printing.
The result is the average of four color patches of cyan (C), magenta (M), yellow (Y), and black (K).
Test example 3
The degree of ink bleed was tested.
The dot pattern is designed, the pattern is scanned and stored in a computer through a scanner, and then the area of the pattern is measured through Image software. And calculating the degree of penetration R of the ink on the fabric according to a formula.
Wherein S is the area of the design print; s' pattern area after inkjet printing is completed.
The result is the average of four color patches of cyan (C), magenta (M), yellow (Y), and black (K).
Test example 4
The fastness to soaping is determined according to the method of GB/T3921-2008 "fastness to soaping for textile color fastness test".
The rubbing fastness was determined according to GB/T3920-2008 "rubbing fastness to fabric fastness test".
The evaluation was performed according to the magenta (M) color patch.
The results of test examples 1-4 are shown in Table 2.
TABLE 2
The above examples are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present invention should be made in the equivalent manner, and the embodiments are included in the protection scope of the present invention.

Claims (8)

1. The nylon ink-jet printing pretreatment process is characterized by comprising the following steps of:
preparing pretreatment pulp, sizing fabrics, drying I, digital printing, drying II, spraying an initiator solution, steaming, washing I, soaping, washing I and drying III;
the pretreatment slurry comprises the following components in percentage by mass: 3-6% of guar gum, 0.5-1.2% of vinyl-terminated cationic polyacrylamide, 0-0.7% of N, N' -dihydroxyethyl bisacrylamide, 2-4% of methacrylate monomer, 3-5% of ammonium sulfate, 3-5% of urea and the balance of water;
the preparation method of the vinyl-terminated cationic polyacrylamide comprises the following steps:
(1) Taking bis (carboxymethyl) trithiocarbonate as a chain transfer agent, and under the initiation of azodiisobutyronitrile, carrying out reversible addition-fragmentation chain transfer reaction on acrylamide and an ammonium salt monomer to prepare carboxyl-terminated cationic polyacrylamide;
(2) Carboxyl-terminated cationic polyacrylamide and SOCl with triethylamine as acid binding agent 2 Reacting to obtain an acyl chloride product;
(3) The acyl chloride product obtained in the step (2) is further reacted with hydroxyethyl methacrylate to prepare vinyl-terminated cationic polyacrylamide;
the initiator solution is a mixed solution of azo initiator V-50 and potassium persulfate.
2. The chinlon inkjet printing pretreatment process according to claim 1, wherein the temperature of the drying I is 70-100 ℃; the temperature of the drying II is 70-100 ℃; the temperature of the drying III is 120 ℃.
3. The pretreatment process for nylon ink-jet printing according to claim 1, wherein the washing step I is carried out in hot water at 40 ℃ for 5min, and the washing step I is repeated twice; the soaping is specifically carried out by adopting 1g/L soaping agent DM-1522 to wash for 20min at 70 ℃, and the bath ratio is 1:20; and the water washing II is water washing at normal temperature for 5min.
4. The chinlon inkjet printing pretreatment process according to claim 1, wherein the steaming is specifically steaming for 10-30 min under normal pressure saturated steam at 102 ℃.
5. The pretreatment process for nylon ink-jet printing according to claim 1, wherein the sizing adopts two padding and two rolling, and the roller pressure is 9.8N/cm 2 。
6. A chinlon inkjet printing pretreatment process according to claim 1, wherein the digital printing, ink is selected from one or a combination of reactive dyes and acid dyes.
7. A chinlon inkjet printing pretreatment process according to claim 1, wherein the ammonium salt monomer is selected from the group consisting of: one or a combination of acryloyloxyethyl trimethyl ammonium chloride, methacryloyloxyethyl trimethyl ammonium chloride and methacryloyloxyethyl dimethyl benzyl ammonium chloride.
8. The chinlon inkjet printing pretreatment process according to claim 1, wherein the methacrylate monomer is one or a combination of methyl methacrylate, ethyl methacrylate, propyl methacrylate, methyl acrylate, ethyl acrylate and hydroxyethyl methacrylate.
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JP2000103162A (en) * 1998-09-30 2000-04-11 Toppan Printing Co Ltd Ink jet recording medium and manufacture thereof
CN1707017A (en) * 2005-05-18 2005-12-14 江南大学 Digital ink jet fabric-treating process
CN105735005A (en) * 2016-04-19 2016-07-06 苏州大学 Chinlon textile printing method based on polyamide copolymer
CN110029511A (en) * 2019-04-19 2019-07-19 天津工业大学 A kind of process for surface preparation of ink-jet printed pretreating agent and silk fabric
CN116641245A (en) * 2023-05-25 2023-08-25 绍兴乾雍纺织有限公司 Digital printing technology for chinlon

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JPH10222027A (en) * 1997-01-31 1998-08-21 Ricoh Co Ltd Material to be recorded and pre-processor and reproducer for the same
JP2000103162A (en) * 1998-09-30 2000-04-11 Toppan Printing Co Ltd Ink jet recording medium and manufacture thereof
CN1707017A (en) * 2005-05-18 2005-12-14 江南大学 Digital ink jet fabric-treating process
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CN110029511A (en) * 2019-04-19 2019-07-19 天津工业大学 A kind of process for surface preparation of ink-jet printed pretreating agent and silk fabric
CN116641245A (en) * 2023-05-25 2023-08-25 绍兴乾雍纺织有限公司 Digital printing technology for chinlon

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