CN117364512A - Anti-fibrillation treatment process of lyocell dyed fabric - Google Patents

Anti-fibrillation treatment process of lyocell dyed fabric Download PDF

Info

Publication number
CN117364512A
CN117364512A CN202311470033.8A CN202311470033A CN117364512A CN 117364512 A CN117364512 A CN 117364512A CN 202311470033 A CN202311470033 A CN 202311470033A CN 117364512 A CN117364512 A CN 117364512A
Authority
CN
China
Prior art keywords
fabric
lyocell
linking agent
fibrillation
dyed
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
CN202311470033.8A
Other languages
Chinese (zh)
Inventor
房宽峻
薛祯
宋亚伟
任燕飞
谢汝义
包伟
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.)
Qingdao University
Original Assignee
Qingdao University
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 Qingdao University filed Critical Qingdao University
Priority to CN202311470033.8A priority Critical patent/CN117364512A/en
Publication of CN117364512A publication Critical patent/CN117364512A/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
    • 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
    • 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
    • D06M13/395—Isocyanates
    • 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
    • D06M13/425—Carbamic or thiocarbamic acids or derivatives thereof, e.g. urethanes
    • 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
    • D06M15/263—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acids; Salts or esters 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
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/55—Epoxy resins
    • 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
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/02—After-treatment
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • 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
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/35—Abrasion, pilling or fibrillation resistance

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention discloses an anti-fibrillation treatment process of a lyocell dyed fabric, which belongs to the technical field of textile dyeing and finishing processing and comprises the following steps: (1) Washing and soaping the dyed lyocell fabric, and removing redundant dye on the fabric; (2) Preparing a fixation cross-linking agent treatment solution with the bath ratio of 1:3-30, immersing the washed and soaped lyocell fabric into the treatment solution at room temperature to uniformly adsorb the fixation cross-linking agent on the fabric, wherein the fixation cross-linking agent is one of a water-based polyurethane fixation cross-linking agent, a cationic polymer fixation cross-linking agent and a polyamine resin fixation cross-linking agent; (3) Regulating the pH value of the treatment solution to 4-7, heating to 40-90 ℃, continuously soaking the lyocell fabric for 10-30min, and draining; (4) The treated lyocell fabric is washed, softened and dried. The invention can realize the anti-fibrillation effect of the lyocell dyed fabric and synchronously fix the color of the fabric, reduce the process steps and reduce the cost.

Description

Anti-fibrillation treatment process of lyocell dyed fabric
Technical Field
The invention relates to the technical field of textile dyeing and finishing, in particular to an anti-fibrillation treatment process of lyocell dyed fabrics.
Background
The lyocell fiber is regenerated cellulose fiber spun from cellulose solution dissolved in N-methylmorpholine oxide (NMMO), the fiber production process is environment-friendly and pollution-free, and the recovery rate of the used solvent is as high as 99.7%, so the fiber is called as novel green fiber in 21 st century. The lyocell fiber takes renewable pulp formed by mashing bamboo, wood and the like as raw materials, and the advanced process ensures that the recovery rate of the solvent is up to 99.7 percent, thereby not only saving energy, protecting environment, but also being sustainable. The composite fiber has the excellent performances of natural fiber and synthetic fiber, the raw material is inexhaustible cellulose in the natural world, the production process has no chemical reaction, and the used solvent is nontoxic. The alloy has excellent toughness in dry or wet state. The clothing made of the fiber has natural luster, smooth hand feeling, high strength, basically no shrinkage, good moisture permeability and air permeability, and good fabric blending effect with wool. However, lyocell fibers have a unique fibrillation phenomenon, which is a phenomenon or tendency that fibers are easily fibrillated on the surface, and when the outer layer of the fibers is broken, the fibers are longitudinally split into fine fibers having a diameter of 1 to 4 μm. The degree of fibrillation of lyocell fibers is more severe than other fibers, mainly due to the unique highly crystalline orientation of the fibers, and the weak lateral bonds between crystallites. The lyocell knitted fabric mainly adopts a dip dyeing method in the dyeing and finishing stage, so that fibrillation is more easily generated due to mechanical friction in a wet state in the processing process, and the color of the dyed fabric is influenced. Therefore, the development of the energy-saving, clean and low-fibrillation lyocell knitted fabric in the dyeing and finishing stage and the fact that the lyocell knitted fabric has a certain anti-fibrillation capability are of great significance.
At present, the solution to the fibrillation problem of the lyocell fiber is mostly realized by adding a cross-linking agent into spinning solution or performing cross-linking process treatment on the fiber, wherein the process route of the fibrillation treatment comprises pre-dyeing, during-dyeing and after-dyeing, and the specific contents of the prior art are as follows:
CN115772811a discloses a cold pad-batch dyeing process which can prevent fibrillation of lyocell woven fabrics. The method comprises the following steps: preparing a treatment solution of amylase and a penetrating agent, regulating the pH value of the treatment solution to be 4-6, padding and desizing working solution of the greige cloth of the lyocell woven fabric, rolling and stacking, washing with hot water, washing with water at normal temperature, and drying; padding the fabric with a solution containing a fibrillation-preventing treating agent, drying, baking, washing with water and drying; preparing reactive dye liquor and color fixing liquor, mixing the prepared dye liquor and color fixing liquor to prepare dyeing working liquor, padding the fabric with the dyeing working liquor, rolling and piling, washing with hot water, soaping, washing with cold water, and drying. The invention saves refining bleaching process, uses anti-fibrillation treatment agent to perform anti-fibrillation treatment before dyeing, improves the anti-fibrillation capability of the lyocell fabric, adopts cold pad-batch dyeing process to dye the lyocell woven fabric, reduces the friction between the fabric and equipment, and reduces the fibrillation tendency.
CN104005225a discloses a method for reducing the fibrillation tendency of Lyocell cellulose fibres, comprising the steps of: (1) Immersing Lyocell fibers in a solution comprising a cross-linking agent, a catalyst and a penetrant; (2) The fiber is rolled to dryness, then is pretreated for 90 to 150 s at 75 to 85 ℃, and then is baked for 90 to 150 s at 125 to 135 ℃ to solidify and crosslink the fiber; (3) Washing the baked fiber with soft water at 50deg.C for 3-7 times, and then with cold soft water for 1-3 times: (4) Finally, the fiber is dried at 80 ℃ to obtain the antigen fibrillated Lyocell cellulose fiber. The cross-linking agent provided by the invention is easy to obtain, and Lyocell cellulose fibers are treated by a specific method, so that the Lyocell fibers with antigen fibrillation performance are obtained.
CN111893749a provides an antigen fibrillation treatment method of lyocell fiber, which comprises immersing the lyocell fiber in a cross-linking solution, and adopting a two-immersion two-rolling process to carry out treatment to obtain the lyocell fiber after the antigen fibrillation treatment; the crosslinking liquid comprises a crosslinking agent active substance and a latent acid catalyst; the active substance of the cross-linking agent is a mixture of two or more than two C2-C6 dialdehyde compounds, and the cross-linking agent used in the treatment method has the advantages of simple synthesis process, low price, low requirement on using equipment and higher cross-linking effect.
CN114990904a discloses an energy-saving and environment-friendly dyeing process for lyocell knitted fabrics, which comprises the following steps: (1) cleaning and scouring and bleaching the lyocell knitted fabric; (2) Treating the lyocell knitted fabric in one bath by using an antigen fibrillation auxiliary agent and a multi-active-group reactive dye; (3) adjusting the pH value and washing with water; (4) The tentering setting can be realized on common dyeing and finishing equipment of knitted fabrics, the process equipment is not required to be greatly adjusted, the water consumption, the energy consumption and the production cost are saved, the anti-fibrillation effect is obvious, the anti-pilling grade of the lyocell knitted fabrics can reach 4 grades, the method is simple to operate, the flow is short, and the method is suitable for the lyocell knitted fabric processing process of most dyeing and finishing enterprises.
The cross-linking treatment used in the above patent can enhance the lateral binding force between fibrils, and has a good antigen fibrillation effect, but some defects still exist. In the prior anti-fibrillation process route for the lyocell fabric, anti-fibrillation treatment is carried out before dyeing and during dyeing, but the crosslinking auxiliary agent used for anti-fibrillation is possibly hydrolyzed after crosslinking in the acid-base environment during dyeing, and the anti-fibrillation effect of the fabric is affected after dyeing is finished. That is, the anti-fibrillation treatment is inevitably performed before or during dyeing, and the dyeing process affects the anti-fibrillation effect of the lyocell fabric. In addition, since the lyocell fiber is difficult to dye uniformly in the dyeing process, and the dye must be fixed to ensure that the color does not fade in the later period, further fixation treatment is required to be carried out on the dyed fabric. The process steps are more, so that the production cost is improved, and the efficiency is lower. Therefore, the better anti-fibrillation effect of the fabric is realized, the fabric is not influenced by the dyeing process, the fixation of the fabric is synchronously realized while the anti-fibrillation is realized, the process steps are reduced, the cost is reduced, the production efficiency is improved, the technology adopted and the anti-fibrillation auxiliary agent are vital-! The prior anti-fibrillation process is complicated, and the consumption of the cross-linking agent is large, so that the development of industrial application is restricted by the problems. In addition, most of the above are mainly fiber anti-fibrillation, and no reasonable solution exists for the dyeing and finishing process for preventing the fibrillation of the lyocell fabric. No process for anti-fibrillation treatment of the lyocell fabric after dyeing is reported.
In summary, how to achieve a better anti-fibrillation effect of the lyocell fabric without being affected by the dyeing process, and improve the color fastness of the fabric, reduce the production cost, and improve the quality of the lyocell fabric becomes a problem to be solved by those skilled in the textile dyeing and finishing field.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide the fixation cross-prevention fibrillation treatment process for the dyed lyocell fabric, which is not influenced by the dyeing process, can realize the anti-fibrillation effect of the lyocell dyed fabric and synchronously fix the fabric, reduces the process steps, reduces the cost and improves the production efficiency.
In order to solve the technical problems, the invention adopts the following technical scheme: an anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric, and removing redundant dye on the fabric, so that the color fixation and crosslinking effects of the subsequent fabric are prevented from being influenced;
(2) Preparing a fixation cross-linking agent treatment solution with the bath ratio of 1:3-30, immersing the washed and soaped lyocell fabric into the treatment solution at room temperature to uniformly adsorb the fixation cross-linking agent on the fabric, wherein the fixation cross-linking agent is one of a water-based polyurethane fixation cross-linking agent, a cationic polymer fixation cross-linking agent and a polyamine resin fixation cross-linking agent;
(3) Regulating the pH value of the treatment solution to 4-7, heating to 40-90 ℃, continuously soaking the lyocell fabric for 10-30min, and draining;
(4) The treated lyocell fabric is washed, softened and dried.
Preferably, in the step (2), the aqueous polyurethane color fixing and crosslinking agent is one of urethane-containing aqueous polyurethane or isocyanate-containing aqueous polyurethane.
Preferably, in the step (2), the cationic polymer fixation cross-linking agent is one of cationic polyacrylic acid copolymer, dimethyl diallyl quaternary ammonium salt polymer, polyvinyl amine primary amine polymer, quaternized vinyl imidazole copolymer, quaternized polyethylenimine and poly (4-vinyl pyridine) quaternary ammonium salt.
Preferably, in the step (2), the polyamine resin type fixation cross-linking agent is one of ethylenediamine and epichlorohydrin condensate and epichlorohydrin-polyethylene polyamine polycondensate.
Preferably, in the step (2), the bath ratio is 1:15. The bath ratio is related to the concentration of the fixation cross-linking agent in the treatment liquid, and the small bath ratio treatment can not only accelerate the fixation cross-linking rate, but also improve the utilization rate of the fixation cross-linking agent to a certain extent.
Preferably, in the step (2), the time for immersing the lyocell fabric in the treatment liquid is 4-6min, and the fabric can uniformly adsorb the fixation cross-linking agent.
Preferably, in step (2), 3% (owf) of the fixing cross-linking agent treatment solution is prepared at room temperature. If the amount of the auxiliary agent is small, incomplete reaction with the fibers is caused, the effect is poor, and when the anti-fibrillation effect and the fixation effect are combined, the amount of the fixation cross-linking agent is preferably 3% (owf).
Preferably, in the step (3), the pH of the treatment solution is adjusted to 6. The color fixing crosslinking agent is unstable under acidic and alkaline conditions, so that hydrolysis is easy to occur and the crosslinking reaction effect is affected, and therefore, from the aspect of the color fixing crosslinking effect, the pH of the treatment liquid is preferably controlled within the range of 5-6, and the treatment liquid is optimal at the pH of 6.
Preferably, in the step (3), the temperature is raised to 50 ℃, and the lyocell fabric is soaked for 20min.
The invention breaks through the traditional anti-fibrillation process route, carries out anti-fibrillation treatment after dyeing the lyocell fabric, does not influence the dyeing effect before under the influence of the dyeing process, realizes the better anti-fibrillation effect, and synchronously realizes the fixation purpose. The color fixing cross-linking agent can be combined with hydroxyl groups on macromolecular chains of different fibers in a covalent bond manner to form a bridging effect, so that the interaction between macromolecular chains is improved, and the binding force between fibers is enhanced; the partial fixation cross-linking agent can form a film on the surface of the fiber, protect the cortex structure of the lyocell fiber, reduce the damage of external force to the fiber, prevent the generation of fibrillation to a certain extent, and improve the fuzzing and pilling resistant grade of the fabric. Meanwhile, the surface of the lyocell fiber is negatively charged, and the reactive dye used for dyeing the lyocell fiber is provided with an anionic group. Therefore, the cationic fixation cross-linking agent can establish electrostatic combination between the dye and the lyocell fiber, so that the fixation rate of the reactive dye is improved, and the color fastness of the fabric is improved. The invention strengthens the transverse binding force among the giant fibrils by the double means of reinforcing the binding force of the fibers and protecting the film, prevents the giant fibrils from splitting to generate fibrillation, improves the problem that the macromolecular chains of the lyocell fibers are weak in lateral connection of the fibers, and reduces the phenomena that the friction is easy to break and tiny hairiness is generated on the surfaces of the fibers. The anti-fibrillation treatment process synchronously realizes the effect of improving the color fastness of the fabric, omits the process step of fixing the dyed lyocell fabric, reduces the production cost and improves the production efficiency.
Drawings
FIG. 1 is a scanning electron microscope comparison chart of the lyocell fabrics after testing wet crocking color fastness of example 1 and comparative example 1 of the present invention;
FIG. 2 is a scanning electron microscope comparison of the lyocell fabrics after testing the wet crocking color fastness of example 2 and comparative example 2 of the present invention;
FIG. 3 is a scanning electron microscope comparison of the lyocell fabrics after testing the wet crocking color fastness of example 3 and comparative example 3 of the present invention;
FIG. 4 is a scanning electron microscope comparison of the lyocell fabric after testing the wet rub fastness of examples 4, 5, 6, 7 of the present invention;
FIG. 5 is a scanning electron microscope comparison of the lyocell fabric after testing the wet crock fastness of examples 8, 9, 10 of the present invention;
FIG. 6 is a scanning electron microscope comparison of the lyocell fabric after testing the wet rub fastness of examples 11, 12, 13, 14 of the present invention;
FIG. 7 is a scanning electron microscope comparison of the lyocell fabric after testing the wet crocking color fastness of examples 15, 16, 17, 18 of the present invention.
Description of the embodiments
The invention will be described in further detail with reference to the accompanying drawings and specific examples.
It should be noted that "% (owf)" in the following examples is a conventional unit related to textiles, for example, "3% of fixing cross-linking agent is added (owf)" represents that the amount of fixing cross-linking agent added is 3% of the weight of the lyocell textile, and water washing and soaping in the following examples are conventional methods in dyeing processes in the art, and the soaping may be performed by using standard soap chips manufactured by Shanghai soap manufacturing company.
The color fixing cross-linking agent aqueous polyurethane type, cationic polyacrylic acid copolymer, ethylenediamine and epoxy chloropropane condensate, dimethyl diallyl quaternary ammonium salt polymer, polyvinyl amine primary amine polymer, quaternized ethylene imidazole copolymer, quaternized polyethyleneimine, poly (4-vinyl pyridine) quaternary ammonium salt and epoxy chloropropane-polyethylene polyamine polycondensate are all purchased from Qingda city da chemical industry Co.
In the following examples and comparative examples,K/Svalue test 10 points of dyed fabric are tested by using a Datacolor850 type spectrocolorimeter under the conditions of a 10-degree visual angle, a D65 light source and a 30 mm color measurement aperture, the fabric is folded to be in a non-light-transmitting state, and the apparent color depth of a 10-time dyed fabric sample at the maximum absorption wavelength is measuredK/SValues). Anti-pilling grade test Using Martindale Flat grinding Instrument according to GB/T4802.2-2008 "determination of pilling Property of textile fabrics part 2 modified Martindale method StandardFuzzing and pilling grade of test fabric. Rubbing color fastness-rubbing color fastness of dyed fabrics including dry rubbing and wet rubbing color fastness was tested according to GB/T3920-2008 "rubbing color fastness for textile color fastness test".
Example 1
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing 2% (owf) ethylenediamine and epichlorohydrin condensate into treatment liquid at room temperature, wherein the bath ratio is 1:15, immersing the washed and soaped lyocell fabric into the treatment liquid for 4 min, and uniformly adsorbing the fixation cross-linking agent on the fabric;
(3) Regulating the pH value of the treatment liquid to 5, heating to 40 ℃, continuously soaking the lyocell fabric for 30min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Comparative example 1
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric in the same manner as in example 1;
(2) Preparing a treatment solution without the condensation product of ethylenediamine and epichlorohydrin at room temperature according to a bath ratio of 1:15, immersing the washed and soaped lyocell fabric in the treatment solution for 4 min to enable the fabric to be uniformly adsorbed;
(3) Regulating the pH value of the treatment liquid to 5, heating to 40 ℃, continuously soaking the lyocell fabric for 30min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
As shown in fig. 1, it can be seen from the scanning electron microscope images of the lyocell fabrics obtained in example 1 and comparative example 1 after testing the wet rubbing color fastness that the lyocell fabric of comparative example 1 has a significant fibrillation phenomenon after wet rubbing, whereas example 1 has no fibrillation phenomenon after treatment with an ethylenediamine and epichlorohydrin condensate. The dye-fixing cross-linking agent of the condensation product of the ethylenediamine and the epichlorohydrin of polyamine resin forms macromolecules with the dye and the cellulose by virtue of the network structure of the dye and the cellulose, so that the binding force between fibers is enhanced, the wet processing fastness of the fabric is improved, and the aim of reducing fibrillation is fulfilled.
Example 2
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing 3% (owf) cationic aqueous polyurethane fixation cross-linking agent treatment solution containing carbamate at room temperature, wherein the bath ratio is 1:15, immersing the washed and soaped lyocell fabric into the treatment solution for 5 min, and uniformly adsorbing the cationic aqueous polyurethane fixation cross-linking agent containing carbamate on the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 50 ℃, continuously soaking the lyocell fabric for 20min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Comparative example 2
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric in the same manner as in example 3;
(2) Preparing a treatment solution containing no carbamate cationic polyurethane fixation cross-linking agent according to a bath ratio of 1:15 at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 5 min, and uniformly adsorbing the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 50 ℃, continuously soaking the lyocell fabric for 20min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
As shown in fig. 2, it can be seen from the scanning electron microscope images of the lyocell fabrics obtained in example 2 and comparative example 2 after testing the wet rubbing color fastness that the lyocell fabric of comparative example 2 has a significant fibrillation phenomenon after wet rubbing, whereas example 2 has no fibrillation phenomenon after treatment with a fixing cross-linking agent. The method is characterized in that the cationic aqueous polyurethane fixation cross-linking agent containing urethane is used for treatment, reactive cross-linking groups on molecules of the cationic aqueous polyurethane fixation cross-linking agent are automatically cross-linked into macromolecules, a protective film with certain strength is formed on the surfaces of fabrics and fibers, the wet friction capacity of the fabrics is improved, and the skin layers are prevented from being damaged, so that fibrillation is reduced.
Example 3
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a treatment solution of 3% (owf) cationic polyacrylic acid copolymer at room temperature, wherein the bath ratio is 1:15, immersing the washed and soaped lyocell fabric into the treatment solution for 5 min, and uniformly adsorbing the cationic polyacrylic acid copolymer on the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 40 ℃, continuously soaking the lyocell fabric for 15 min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Comparative example 3
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric in the same manner as in example 3;
(2) Preparing a treatment solution without cationic polyacrylic acid copolymer according to a bath ratio of 1:15 at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 5 min, and uniformly adsorbing the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 40 ℃, continuously soaking the lyocell fabric for 15 min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
As shown in fig. 3, it can be seen from the scanning electron microscope images of the lyocell fabrics obtained in example 3 and comparative example 3 after testing the wet rubbing color fastness that the lyocell fabric of comparative example 3 has a significant fibrillation phenomenon after wet rubbing, whereas example 3 has no fibrillation phenomenon after treatment with a fixing cross-linking agent. This is because the reactive groups in the molecules of the cationic polymer type polyacrylate quaternary ammonium compound fixation cross-linking agent are used for cross-linking with reactive groups on dye molecules and hydroxyl groups on cellulose molecules, so that the binding force between fibers is enhanced, the abrasion resistance of the fabric is improved, the water solubility of the dye is reduced, and the effects of reducing fibrillation and improving color are achieved.
Example 4
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 1:15, namely preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 3% (owf) at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 4 min, and uniformly adsorbing the cationic aqueous polyurethane on the fabric;
(3) Adjusting the pH value of the treatment liquid to 4, heating to 50 ℃, continuously soaking the lyocell fabric for 20min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Example 5
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 1:15, namely preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 3% (owf) at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 4 min, and uniformly adsorbing the cationic aqueous polyurethane on the fabric;
(3) Regulating the pH value of the treatment liquid to 5, heating to 50 ℃, continuously soaking the lyocell fabric for 20min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Example 6
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 1:15, namely preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 3% (owf) at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 4 min, and uniformly adsorbing the cationic aqueous polyurethane on the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 50 ℃, continuously soaking the lyocell fabric for 20min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Example 7
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 1:15, namely preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 3% (owf) at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 4 min, and uniformly adsorbing the cationic aqueous polyurethane on the fabric;
(3) Regulating the pH value of the treatment liquid to 7, heating to 50 ℃, continuously soaking the lyocell fabric for 20min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Example 8
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing 2% (owf) of cationic aqueous polyurethane preparation treatment solution at room temperature, wherein the bath ratio is 1:15, and immersing the washed and soaped lyocell fabric into the treatment solution for 4 min to enable the cationic aqueous polyurethane to be uniformly adsorbed on the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 50 ℃, continuously soaking the lyocell fabric for 20min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Example 9
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 1:15, namely preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 3% (owf) at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 4 min, and uniformly adsorbing the cationic aqueous polyurethane on the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 50 ℃, continuously soaking the lyocell fabric for 20min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Example 10
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 1:15, namely preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 4% (owf) at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 4 min, and uniformly adsorbing the cationic aqueous polyurethane on the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 50 ℃, continuously soaking the lyocell fabric for 20min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Example 8, example 9 and example 10 anti-fibrillation treatment of fabrics with different amounts of fixing and crosslinking agent the fabrics obtained in the treatments of example 8, example 9 and example 10 were subjected toK/SValues, pilling resistance rating, color fastness, SEM pictures after wet rubbing test of the fabrics were compared, and the results are shown in fig. 5 and table 3, respectively.
Example 11
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 1:15, namely preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 3% (owf) at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 4 min, and uniformly adsorbing the cationic aqueous polyurethane on the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 40 ℃, continuously soaking the lyocell fabric for 20min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Example 12
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 1:15, namely preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 3% (owf) at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 4 min, and uniformly adsorbing the cationic aqueous polyurethane on the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 50 ℃, continuously soaking the lyocell fabric for 20min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Example 13
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 1:15, namely preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 3% (owf) at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 4 min, and uniformly adsorbing the cationic aqueous polyurethane on the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 70 ℃, continuously soaking the lyocell fabric for 20min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Example 14
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 1:15, namely preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 3% (owf) at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 4 min, and uniformly adsorbing the cationic aqueous polyurethane on the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 90 ℃, continuously soaking the lyocell fabric for 20min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Example 15
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 1:15, namely preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 3% (owf) at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 4 min, and uniformly adsorbing the cationic aqueous polyurethane on the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 50 ℃, continuously soaking the lyocell fabric for 10 min, and draining;
(4) The treated lyocell fabric is washed, softened and dried.
Example 16
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 1:15, namely preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 3% (owf) at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 4 min, and uniformly adsorbing the cationic aqueous polyurethane on the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 50 ℃, continuously soaking the lyocell fabric for 15 min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Example 17
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 1:15, namely preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 3% (owf) at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 4 min, and uniformly adsorbing the cationic aqueous polyurethane on the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 50 ℃, continuously soaking the lyocell fabric for 20min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
Example 18
An anti-fibrillation treatment process of a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 1:15, namely preparing a cationic aqueous polyurethane preparation treatment solution with a bath ratio of 3% (owf) at room temperature, immersing the washed and soaped lyocell fabric into the treatment solution for 4 min, and uniformly adsorbing the cationic aqueous polyurethane on the fabric;
(3) Regulating the pH value of the treatment liquid to 6, heating to 50 ℃, continuously soaking the lyocell fabric for 30min, and discharging liquid;
(4) The treated lyocell fabric is washed, softened and dried.
The fabrics obtained by the treatment processes of example 1 and comparative example 1, example 2 and comparative example 2, example 3 and comparative example 3 were subjected to the following treatmentsK/SThe values, pilling resistance rating, and rubbing fastness were measured and the results are shown in Table 1. Examples 1 and 1, 2 and 2, and examplesSEM pictures of the fabrics after wet crock fastness testing of 3 and comparative example 3 are shown in figures 1, 2 and 3, respectively. As can be seen from Table 1, the fabrics in examples 1, 2 and 3K/SThe values are all greater than in comparative examples 1, 2, 3K/SThe color of the fabrics of examples 1, 2, 3 was darker than the color of comparative examples 1, 2, 3. It can be seen from figures 1, 2 and 3 that the fabrics of examples 1, 2 and 3 all maintained smooth surfaces without fibrillation, whereas the fabrics of comparative examples 1, 2 and 3 had significant fibrillation. The color fixing cross-linking agents selected in examples 1, 2 and 3 are shown to have a great improvement on the color of the fabric and the anti-fibrillation effect of the fabric.
Table 1 examples 1, 2, 3 and comparative examples 1, 2, 3 fabricsK/SValue, rub fastness, fuzzing and pilling resistance
Example 1 Comparative example 1 Example 2 Comparative example 2 Example 3 Comparative example 3
K/SValue of 18.44 16.85 17.54 16.82 17.24 16.81
Color fastness to rubbing (Dry/wet) 4-5/4 4/3-4 4/4 4/3-4 4-5/4 4/3-4
Fuzzing and pilling grade 4-5 3-4 4 3-4 4 3-4
Example 4, example 5, example 6 and example 7 were anti-fibrillation treatments of fabrics at different pH values, and fabrics obtained by the treatments of example 4, example 5, example 6 and example 7 were subjected to the treatments ofK/SThe values, pilling resistance rating, and rubbing fastness were measured and the results are shown in Table 2. SEM pictures of the fabrics after wet crock fastness testing of examples 4, 5, 6, 7 are shown in figure 4.
Table 2 examples 4, 5, 6, 7 fabricsK/SValue, rub fastness, fuzzing and pilling resistance
Examples pH value of K/SValue of Color fastness to rubbing (Dry/wet) Fuzzing and pilling grade
Example 4 4 17.24 4/4 4
Example 5 5 17.54 4-5/4 4-5
Example 6 6 18.44 4-5/4-5 4-5
Example 7 7 18.03 4/4 4
As can be seen from Table 2, the pH value has an anti-fibrillation effect and is fixed when the cationic aqueous polyurethane is used for carrying out fixation and crosslinking treatment on the lyocell fabricThe color effect is greatly affected. As the pH value gradually increases from acidity to neutrality, the lyocell fabricK/SThe value, the rubbing color fastness and the pilling grade are obviously improved, and the performance is optimal under the weak acid condition with the pH value of 6. The performance gradually decreases when the cationic waterborne polyurethane is adjusted to the neutral direction, and the cationic waterborne polyurethane is unstable under acidic and alkaline conditions and is easy to hydrolyze, so that the crosslinking reaction effect is affected. Therefore, in terms of the effect of fixation and crosslinking, the pH of the treatment liquid is preferably controlled in the range of 5 to 6, and is most preferably at pH 6. As shown in fig. 4, the fabric remained smooth and non-fibrillating after wet rub fastness testing for example 6 pH at 6.
Example 8, example 9 and example 10 anti-fibrillation treatment of fabrics with different amounts of fixing and crosslinking agent the fabrics obtained in the treatments of example 8, example 9 and example 10 were subjected toK/SThe values, pilling resistance rating, and rubbing fastness were measured and the results are shown in Table 3. SEM pictures after wet crocking the fabrics of examples 8, 9, 10 are shown in figure 5.
TABLE 3 fabrics of examples 8, 9, 10K/SValue, rub fastness, fuzzing and pilling resistance
Examples Color fixing crosslinking agent dosage (% owf) K/SValue of Color fastness to rubbing (Dry/wet) Fuzzing and pilling grade
Example 8 2 17.84 4/4 4
Example 9 3 18.14 4-5/4-5 4-5
Example 10 4 18.04 4-5/4-5 4-5
As can be seen from Table 3, the amount of fixing cross-linking agent used was gradually increased to give a lyocell fabricK/SThe values increase and then decrease, and the color fastness (dry/wet) and pilling grade show gradually increasing potential, so that the cationic aqueous polyurethane is preferably used in an amount of 3% (owf) when the anti-fibrillation effect and the fixation effect are combined. As shown in FIG. 5, the cationic aqueous polyurethane formulation of example 9 was used at 3% (owf) and the fabric remained smooth and non-fibrillating after wet rub fastness testing.
Example 11, example 12, example 13 and example 14 were anti-fibrillation treatments of fabrics under different reaction temperatures, and fabrics obtained in the treatments of example 11, example 12, example 13 and example 14 were subjected toK/SThe values, pilling resistance rating, and rubbing fastness were measured and the results are shown in Table 4. SEM pictures of the fabrics after wet crock fastness testing of examples 11, 12, 13, 14 are shown in figure 6.
TABLE 4 fabrics of examples 11, 12, 13, 14K/SValue and color fastness [ ]Dry/wet) anti-pilling
Examples Temperature (° C) K/SValue of Color fastness to rubbing (Dry/wet) Fuzzing and pilling grade
Example 11 40 17.96 4/4-5 4
Example 12 50 18.02 4-5/4 4-5
Example 13 70 17.86 4-5/4 4
Example 14 90 17.62 4/4 4
As can be seen from table 4, the temperature change during the soaking reaction of the lyocell fabric in the treatment liquid did not greatly affect the pilling grade. Fabric with increased treatment fluid temperatureK/SThe influence of the value and the rubbing fastness is in a state of rising and then falling, and from the technical problem of the invention, the temperature of the treatment liquid is preferably controlled within the range of 50-70 ℃. Fabric at 50 DEG CK/SThe value, the rubbing color fastness and the fuzzing and pilling resistant grade are the best. As shown in FIG. 6, the fabrics remained smooth and non-fibrillating after wet rub fastness testing at 50℃for the treatment temperature of example 12.
Example 15, example 16, example 17 and example 18 are anti-fibrillation treatments of fabrics under different reaction time conditions, and the fabrics obtained in the treatments of example 15, example 16, example 17 and example 18 are subjected toK/SThe values, pilling resistance rating, and rubbing fastness were measured and the results are shown in Table 5. SEM pictures after wet rub testing of the fabrics of examples 15, 16, 17, 18 are shown in figure 7.
TABLE 5 fabrics of examples 15, 16, 17, 18K/SValue, color fastness (dry/wet), fuzzing and pilling resistance
Examples Soaking treatment (reaction) time (min) K/SValue of Color fastness (Dry/wet) Fuzzing and pilling grade
Example 15 10 17.71 4/4 4
Example 16 15 17.91 4/4-5 4
Example 17 20 18.11 4-5/4 4-5
Example 18 30 17.93 4/4 4
As can be seen from Table 5, the various indexes of the lyocell fabric after being treated in the treatment liquid, the fabric as the reaction time in the treatment liquid increasesK/SThe values, the color fastness (dry/wet) and the fuzzing and pilling resistance grade are improved and then reduced, the fuzzing and pilling resistance grade has the best performance in 20 minutes, the change of other time has no influence on the anti-fibrillation effect,K/Sthe value and the color fastness (dry/wet) properties are optimal in 15-20 min. To achieve both anti-fibrillation effect and fixation effectThe color crosslinking reaction time is controlled to be 15-20 min, wherein the color fixing crosslinking reaction time of 20min is the best. As shown in FIG. 7, the fabrics remained smooth and non-fibrillating after the wet rub fastness test for 20 minutes of treatment time of example 17.
As can be seen from tables 2-5, the amount of fixing cross-linking agent, the temperature, time and pH of the reaction with the fibers in the fabric versus the amount of dyed lyocell fabricK/SThe indexes such as the value, the color fastness, the fuzzing and pilling grade, the anti-fibrillation effect and the like are all influenced, and the color fixing cross-linking agent has different degrees of influence on improving various performance indexes of the fabric along with the changes of the pH value, the dosage, the temperature and the time of the color fixing cross-linking agent. Wherein, the dosage of the fixation cross-linking agent and the pH have the greatest influence. The color fixing cross-linking agent can be combined with hydroxyl groups on macromolecular chains of different fibers in a covalent bond manner to form a bridging effect, so that the interaction between macromolecular chains is improved, and the binding force between fibers is enhanced; and secondly, part of the fixation cross-linking agent can form a film on the surface of the fiber, protect the cortex structure of the lyocell fiber, reduce the damage of external force to the fiber, prevent fibrillation to a certain extent and improve the fuzzing and pilling resistance grade of the fabric. If the dosage of the auxiliary agent is small, incomplete reaction with fibers can be caused, and the effect is poor; under different pH values, the stability of the fixation cross-linking agent is also affected, the effect of the fixation cross-linking agent is reduced, and the cross-linking reaction effect is reduced; also, fabric fibrillation and color will have different effects at different processing temperatures and times. In addition, the surface of the lyocell fiber has negative charges, and the reactive dye used for dyeing the lyocell fiber has anionic groups. Therefore, the cationic fixation cross-linking agent can establish electrostatic combination between the dye and the lyocell fiber, so that the fixation rate of the reactive dye is improved, and the color fastness of the fabric is improved.
In conclusion, the invention adopts a fixation and cross-linking one-step method to carry out anti-fibrillation treatment means on the lyocell fabric dyed by the reactive dye, and the double effects of anti-fibrillation and fixation are achieved by using the specific mixing amount of the fixation cross-linking agent, the temperature, the time and the pH of the mixture which react with the fibers in the fabric. The anti-pilling grade and the color of dyed fabrics are improved, the waste of fabric fibrillation and dye is avoided, the synergistic effect of anti-fibrillation and color is reflected, and the color of the fabrics is not influenced while the fibrillation is prevented.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
It should be understood that the above description is not intended to limit the invention to the particular embodiments disclosed, but to limit the invention to the particular embodiments disclosed, and that various changes, modifications, additions and substitutions can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims (9)

1. An anti-fibrillation treatment process for a lyocell dyed fabric, comprising the steps of:
(1) Washing and soaping the dyed lyocell fabric;
(2) Preparing a fixation cross-linking agent treatment solution with the bath ratio of 1:3-30, immersing the washed and soaped lyocell fabric into the treatment solution at room temperature to uniformly adsorb the fixation cross-linking agent on the fabric, wherein the fixation cross-linking agent is one of a water-based polyurethane fixation cross-linking agent, a cationic polymer fixation cross-linking agent and a polyamine resin fixation cross-linking agent;
(3) Regulating the pH value of the treatment solution to 4-7, heating to 40-90 ℃, continuously soaking the lyocell fabric for 10-30min, and draining;
(4) The treated lyocell fabric is washed, softened and dried.
2. The anti-fibrillation treatment process of lyocell dyed fabric of claim 1, characterized in that: in the step (2), the aqueous polyurethane color fixing and crosslinking agent is one of aqueous polyurethane containing urethane or aqueous polyurethane containing isocyanate.
3. The anti-fibrillation treatment process of lyocell dyed fabric of claim 1, characterized in that: in the step (2), the cationic polymer type fixation cross-linking agent is one of cationic polyacrylic acid copolymer, dimethyl diallyl quaternary ammonium salt polymer, polyvinyl amine primary amine polymer, quaternized vinyl imidazole copolymer, quaternized polyethylenimine and poly (4-vinylpyridine) quaternary ammonium salt.
4. The anti-fibrillation treatment process of lyocell dyed fabric of claim 1, characterized in that: in the step (2), the polyamine resin type fixation cross-linking agent is one of ethylenediamine and epichlorohydrin condensate and epichlorohydrin-polyethylene polyamine polycondensate.
5. The anti-fibrillation treatment process of lyocell dyed fabric of claim 1, characterized in that: in the step (2), the bath ratio is 1:15.
6. The anti-fibrillation treatment process of lyocell dyed fabric of claim 1, characterized in that: in the step (2), the time for immersing the lyocell fabric in the treatment liquid is 4-6min.
7. The anti-fibrillation treatment process of lyocell dyed fabric of claim 1, characterized in that: in the step (2), a 3% (owf) fixation cross-linking agent treatment solution is prepared at room temperature.
8. The anti-fibrillation treatment process of lyocell dyed fabric of claim 1, characterized in that: in the step (3), the pH of the treatment liquid is adjusted to 6.
9. The anti-fibrillation treatment process of lyocell dyed fabric of claim 1, characterized in that: in the step (3), the temperature of the treatment liquid is raised to 50 ℃, and the lyocell fabric is continuously soaked for 20min.
CN202311470033.8A 2023-11-07 2023-11-07 Anti-fibrillation treatment process of lyocell dyed fabric Pending CN117364512A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311470033.8A CN117364512A (en) 2023-11-07 2023-11-07 Anti-fibrillation treatment process of lyocell dyed fabric

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311470033.8A CN117364512A (en) 2023-11-07 2023-11-07 Anti-fibrillation treatment process of lyocell dyed fabric

Publications (1)

Publication Number Publication Date
CN117364512A true CN117364512A (en) 2024-01-09

Family

ID=89396470

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311470033.8A Pending CN117364512A (en) 2023-11-07 2023-11-07 Anti-fibrillation treatment process of lyocell dyed fabric

Country Status (1)

Country Link
CN (1) CN117364512A (en)

Similar Documents

Publication Publication Date Title
CN101070676B (en) Fiber-material modifying method and dyeing process
CN104727165A (en) Process of dyeing silk fabric
CN105063998A (en) Dyeing and finishing process for linen and cotton blended fiber fabric
CN104746365A (en) Salt-free dyeing process for natural silk fabric
CN104711873A (en) Dyeing process of mulberry silk fabrics
CN104746369A (en) Acid dye dyeing process for acrylic fiber
CN110219182B (en) Method for quickly dyeing polyester textiles
CN104762828A (en) Direct dyeing process for chemical fiber
CN109629268B (en) Printing and dyeing process of high-elasticity fabric made of diacetate fibers and corn fibers
AU747983B2 (en) Method for treating fibrous cellulosic materials
CN114836998A (en) Processing technology of diacetate staple fiber blended knitted fabric
CN113089342A (en) Dyeing and finishing process of black polyester-cotton elastic fabric
CN113136731A (en) Cotton fabric printing and dyeing process
CN1423010A (en) Once-wash multiple-active perssad dye mixed base dyeing method for natural silk blend fabric
CN110230212B (en) Polyester textile dyeing method
CN116084192B (en) Dyeing process of woven polyester fabric
CN117364512A (en) Anti-fibrillation treatment process of lyocell dyed fabric
CN111254724A (en) Dyeing process of woven wool, application of woven wool and wool textile
CN108824021B (en) Method for dyeing real silk and crease-resistant finishing based on coupling reaction
CN115772811B (en) Cold pad-batch dyeing process capable of preventing fibrillation of lyocell woven fabric
CN113652870A (en) Preparation method of multifunctional fibroin finishing agent and application of multifunctional fibroin finishing agent to polyester fabric
CN113215838A (en) Rayon dyeing process in low-temperature environment
El-Zawahry et al. Enzymatic treatment and its influence on finishing and dyeing properties of jute fabrics
CN116837649A (en) Deep dyeing process of pure nylon covered yarn
CN116516666B (en) Energy-saving and environment-friendly dyeing process for woven polyester cloth

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