CN112227089A - Reactive dye one-bath dyeing method for wool/polyamide 56 fiber blended fabric - Google Patents
Reactive dye one-bath dyeing method for wool/polyamide 56 fiber blended fabric Download PDFInfo
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- CN112227089A CN112227089A CN201910634553.5A CN201910634553A CN112227089A CN 112227089 A CN112227089 A CN 112227089A CN 201910634553 A CN201910634553 A CN 201910634553A CN 112227089 A CN112227089 A CN 112227089A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/38—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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/653—Nitrogen-free carboxylic acids or their salts
- D06P1/6533—Aliphatic, araliphatic or cycloaliphatic
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/82—Textiles which contain different kinds of fibres
- D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
- D06P3/8209—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing amide groups
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Abstract
The invention discloses a one-bath one-step dyeing method of a wool/polyamide 56 fiber blended fabric. The method comprises the following steps: reactive dyes are adopted to dye wool/polyamide 56 fiber blended fabric in one bath and one step. The dyeing process provided by the invention improves the homochromatism of wool and polyamide 56 fibers during one-bath dyeing, and overcomes the defect of the traditional polyamide 56 or polyamide 56 and cotton blended dyeing process in wool/polyamide 56 one-bath dyeing.
Description
Technical Field
The invention belongs to the field of textile printing and dyeing, and particularly relates to a reactive dye one-bath dyeing method for wool/polyamide 56 fiber blended fabric.
Background
The polyamide 56 fiber is a bio-based fiber obtained by polymerizing and spinning adipic acid and biological pentanediamine, has the characteristics of low-temperature dyeing and moisture absorption softness, and has the advantages of high strength and good wear resistance of the traditional polyamide 6/66 fiber. Particularly, the initial modulus of the polyamide 56 fiber is closer to that of wool, so that the softness of the fiber is comparable to that of wool, the fiber has a higher blending ratio, and the fiber can be widely applied to development of high-end wool blended textiles.
Both wool and polyamide fiber 56 have amino groups at the end of their macromolecular chains, and can be dyed with acid dyes, 1:2 metal complex dyes (neutral dyes) and reactive dyes. The reactive group in the reactive dye can react with the amino group in wool and polyamide 56 to form a covalent bond, so that the reactive dye has bright color and higher wet processing color fastness compared with an acid dye.
However, due to the difference of the fiber structure, when the reactive dye is used for dyeing in one bath, the components of wool and polyamide 56 are easy to have color difference. From the viewpoint of molecular structure, wool and polyamide 56 contain reactive groups similar to each other, and are covalently reacted with reactive dyes mainly through amino groups. The difference lies in that the amino content on the wool is far greater than that of polyamide 56, so theoretically, under the condition that both fibers are dyed fully, the color of the wool is darker than that of the polyamide 56, on the other hand, due to the unique scale layer structure on the surface of the wool, the dye can be dyed fully at high temperature, the violent movement of the macromolecular chain segment of the polyamide 56 fiber can occur at lower temperature, at the moment, dye molecules can be adsorbed and dyed on the polyamide 56 fiber in a large amount, the dye amount in a dye bath is reduced rapidly, the concentration gradient is reduced rapidly, and the dye is difficult to dye on the wool. Therefore, by selecting a common and conventional reactive dye dyeing method, the wool/polyamide 56 fiber blended fabric is easy to color, and problems such as light coloring, inefficient utilization of dye, colored spots and the like also occur.
Therefore, it is particularly necessary to research a method for simultaneously dyeing wool/polyamide 56 mixed loose fibers in one bath so as to shorten the processing process flow of related textiles, reduce the processing cost and improve the product quality.
Disclosure of Invention
The invention aims to provide a reactive dye one-bath one-step dyeing method for wool/polyamide 56 fiber blended fabric.
The invention provides a one-bath one-step dyeing method of a wool/polyamide 56 fiber blended fabric, which comprises the following steps: carrying out one-bath one-step dyeing on the wool/polyamide 56 fiber blended fabric by adopting reactive dyes;
the reactive dyes include vinyl sulfone type (KN type) reactive dyes, monochlorotriazine and vinyl sulfone sulfate type reactive dyes, di-reactive group (M type) reactive dyes, bromo-acrylamide type (PW type) reactive dyes, for example, gory jaiofast series dyes (available from Hensman chemical industry), German family W type reactive dyes (available from German chemical industry), Lannacol series dyes (available from Hensman chemical industry), preferably, German family W type reactive dyes, Lannacol series reactive dyes.
The gorgeous Eriofast, German-American W-type and Lanasol series dyes include, but are not limited to, gorgeous Eriofast Red 2B, gorgeous Eriofast Blue 3R, gorgeous Eriofast Yellow R, gorgeous Eriofast Black M, reactive Red W-2R 150%, reactive golden Yellow 2R 150%, reactive Blue WBB, Lanasol Red CE, Lanasol Blue CE, Lanasol Navy CE.
In a preferred embodiment of the invention, the blending ratio of the wool/polyamide 56 fiber blended fabric is 50/50-95/5, for example, any one of 20/80, 30/70, 40/60, 50/50, 60/40, 65/35, 70/30 and 80/20. The blend ratio is the ratio of the blended fabric calculated on the dry weight of the blended wool and polyamide 56 fibers.
In a preferred embodiment of the present invention, the relative viscosity of the polyamide 56 as the raw material of the polyamide 56 fiber is 2.4 to 3.2, preferably 2.5 to 2.8; and/or the presence of a gas in the gas,
the amino-terminated content of the polyamide 56 fiber is 40-80 mmol/kg, preferably 45-60 mmol/kg.
In a preferred embodiment of the present invention, the polyamide 56 fiber has a tensile strength of 2.5 to 6.0 cN/dtex; and/or the presence of a gas in the gas,
the fineness of the polyamide 56 fibers is 1.0-3.0D, preferably 2.5-3.0D; and/or the presence of a gas in the gas,
the elongation at break of the polyamide 56 fiber is 10-80%, and preferably 20-60%.
In a preferred embodiment of the present invention, the polyamide 56 fibers are polyamide 56 staple fibers.
The wool fiber used in the present invention has a single-filament fineness preferably in the range of 17 μm to 33 μm, more preferably in the range of 18 μm to 24 μm; the fiber length is preferably in the range of 18 to 76mm, more preferably 28 to 65mm, and can be selected depending on the application, the fiber length of each fiber to be combined therewith, and the like.
The wool fibers used in the present invention may be, for example but not limited to: goat wool, sheep wool, angora wool, alpah wool, australian wool, new zealand wool, yerba mate wool, argentina wool, american wool, uk wool.
In a preferred embodiment of the present invention, the dyeing method further comprises a wool leveling agent, wherein the leveling agent includes, but is not limited to, leveling agent pingjia O (provided by golden jel chemical co., ltd.), leveling agent FK-463 (provided by beijing midrib chemical engineering), albugel B (provided by hensmy chemical engineering). The alboglebal B mainly contains derivative of hydroxyethylated fatty acid amine, and can promote dye migration, and improve color yield and dye utilization rate.
In a preferred embodiment of the present invention, the dyeing method specifically includes the following steps:
(1) placing the pretreated wool/polyamide 56 fiber blended fabric in a dyeing machine, injecting water, adding a dyeing auxiliary agent, adding acetic acid to adjust the pH value, and running for 5-15 min;
(2) adding reactive dye into the dyeing machine, running for 5-10min, heating for dyeing, and cooling and draining after dyeing is finished;
(3) injecting water after the water drainage in the step (2), and adding a soaping agent for treatment to drain water; and (5) washing and drying.
In some preferred examples of the present invention, in the step (1), the pretreatment is to refine the wool/polyamide 56 fiber blended fabric and remove wool oil, spinning oil, weaving oil and the like on the wool/polyamide 56 fiber blended fabric.
In some preferred embodiments of the present invention, in the step (1), the dyeing assistant comprises a penetrating agent, sodium sulfate, sodium acetate and a leveling agent.
In some preferred embodiments of the present invention, the dyeing auxiliary in step (1) is added in an amount of 0.3-0.5% (o.w.f) of penetrant, 2-5g/L of sodium sulfate, 1-2g/L of sodium acetate, 0.5-3% (o.w.f) of leveling agent, and the metering unit o.w.f% represents the gram of mass of the dye or auxiliary corresponding to the fabric mass of 100g of the blended fabric;
in the step (1), the penetrating agent is a non-ionic penetrating agent DM-1260 (provided by Guangdong Germany company);
in the step (1), the leveling agent is albugel B (provided by hensmy chemical industry).
In the step (1), acetic acid is added to adjust the pH value of the dye bath to 4-4.5.
In the step (2), the addition amount of the reactive dye is determined according to the dyeing depth requirement, and the addition amount is preferably 0.5-5% (o.w.f).
In the step (2), the reactive dyes are Lanasol series dyes (provided by Henschel chemical industry) and German W type reactive dyes (provided by German chemical industry).
In the step (2), the temperature-rising dyeing procedure is as follows: the initial dyeing temperature is 20-30 ℃, the temperature is raised to 95-100 ℃ at the speed of 1.0-2.0 ℃/min, and the temperature is kept for 40-60 min; the temperature is reduced after the temperature rise and dyeing: cooling to 50-60 deg.C at 2-5 deg.C/min.
In the step (2), the bath ratio of the wool/polyamide 56 fiber blended fabric is 1: 2-1: 100, preferably 1: 5-1: 30; the bath ratio is the ratio of the fabric weight of the wool/polyamide 56 fiber blended fabric to the dyeing solution weight.
In the step (3), the soaping agent is one or more of anionic surfactants such as sodium stearate, sodium alkyl sulfate and sodium dodecyl benzene sulfonate, or nonionic surfactants such as fatty alcohol-polyoxyethylene ether and alkylphenol ethoxylates.
The invention further provides wool/polyamide 56 fiber blended fabric or textile prepared by the dyeing method; the dyed fabric provided by the invention has uniform color and color fastness to washing, and can meet the requirements of subsequent wearing or use.
The invention has the following beneficial effects:
compared with acid dye one-bath dyeing, the reactive dye one-bath dyeing method for the wool/polyamide 56 fiber blended fabric has bright color and higher wet treatment color fastness; compared with the one-bath dyeing of 1:2 metal complex dye, the method has no problem that the metal ions in the dyeing wastewater exceed the standard.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
1. Wool/polyamide fiber homochromatism test: weighing a certain mass of the pretreated wool loose fibers and the polyamide wool type short fibers according to a blending ratio, putting the weighed wool loose fibers and the polyamide wool type short fibers into a dyeing machine for dyeing, and testing K/S values of the wool loose fibers and the polyamide 56 wool type short fibers after dyeing.
2. Color fastness to washing test: the color fastness to washing of the wool/polyamide fiber blended fabric is tested according to the national standard GB/T3921-2008.
3. Color fastness to rubbing test: the friction color fastness of the wool/polyamide fiber blended fabric is tested according to the national standard GB/T3920-.
4. Testing color fastness to perspiration: the color fastness to perspiration of the wool/polyamide fiber blended fabric is tested according to the national standard GB/T3922-.
5. Method for detecting relative viscosity eta r
Concentrated sulfuric acid method with Ubbelohde viscometer: the dried nylon sample was accurately weighed at 0.5. + -. 0.0002g, dissolved by adding 50mL of concentrated sulfuric acid (98%), and the concentrated sulfuric acid flow time t0 and the nylon solution flow time t were measured and recorded in a constant temperature water bath at 25 ℃.
Relative viscosity calculation formula: relative viscosity eta r t/t0
Wherein: t: the time of solution flow;
t 0: the solvent was run through time.
6. Polyamide terminal amino groups (mmol/kg), test method: using trifluoroethanol as solvent, and using an automatic potentiometric titrator to perform determination.
The dye sources in each example are as follows: penetrant, sodium sulfate, leveling agent, etc. are all commercially available;
the dyes Lanasol Red CE, Lanasol Blue CE, Lanasol Navy CE are available from Hounsfield chemical trade, Inc.;
the dye reactive red W-2R 150%, the reactive golden yellow 2R 150% and the reactive blue WBB are purchased from German and American chemical industry Co., Ltd;
the acid dye Argacid Bril Red N-GW is purchased from Shanghai Yayu textile chemical industry;
leveling agent rivagel Levegal FTSK purchased from toporina chemistry;
the dye blocker Mesitol HWS Liquid was purchased from Tuona chemistry;
leveling agent pingjia O was purchased from jinglale chemical co; albugebalgal B was purchased from hensimei chemical;
biobased polyamide PA56 staple fibers (3.0D 76mm) were supplied by shanghai kaiser biotechnology limited; the relative viscosity of the fiber raw material polyamide 56 is 2.7, the content of terminal amino groups is 53mmol/kg, the tensile strength is 4.0cN/dtex, the elongation at break is 60 percent, and the content of terminal amino groups is 53 mmol/kg;
wool loose fibers were purchased from Jiangyin Penwoollen Limited Australian wool, 64.
The soaping agent is a standard synthetic detergent and is purchased from Shanghai textile industry technical supervision; acetic acid was analytically pure and purchased from Shanghai Lingfeng Chemicals Co., Ltd.
Example 1
Weighing 10g of pretreated wool loose fibers and polyamide 56 wool type short fibers according to the blending ratio of 50/50, placing the weighed materials in a dyeing machine, injecting 200mL of water into the dyeing machine, adding a non-ionic penetrant DM-12600.3% (o.w.f), 3g/L sodium sulfate, 2g/L sodium acetate and 1% of leveling agent Albegal B into a dye bath, adding acetic acid to adjust the pH value of the dye bath to 4.5, wherein the metered unit o.w.f% represents the gram of the mass of the dye corresponding to the fabric mass of each 100g of the blended fabric. After running for 10min, adding reactive red W-2R 2% (o.w.f) into a dyeing machine, wherein the bath ratio of the fabric weight of the wool/polyamide 56 fiber blended fabric to the dyeing solution weight is 1: 20, then running for 5min, heating to 95 ℃ at the speed of 1.0 ℃/min, preserving heat for 60min, then cooling to 50 ℃ at the speed of 3 ℃/min, and draining. Injecting water after the drainage is finished, and adding a soaping agent for treatment and drainage; and (5) washing and drying. The K/S values of wool loose fibers and polyamide 56 wool type short fibers and the color difference, the rubbing resistance, the soaping resistance and the perspiration stain resistance of the wool and the polyamide 56 are respectively tested.
Example 2
Weighing 10g of pretreated wool loose fibers and polyamide 56 wool type short fibers according to the blending ratio of 70/30, placing the weighed materials in a dyeing machine, injecting 200mL of water into the dyeing machine, adding a non-ionic penetrant DM-12600.3% (o.w.f), 3g/L sodium sulfate, 2g/L sodium acetate and 1% of leveling agent Albegal B into a dye bath, adding acetic acid to adjust the pH value of the dye bath to 4.5, wherein the metered unit o.w.f% represents the gram of the mass of the dye corresponding to the fabric mass of each 100g of the blended fabric. After running for 10min, adding active blue WBB 2% (o.w.f) into the dyeing machine, wherein the bath ratio of the fabric weight of the wool/polyamide 56 fiber blended fabric to the dyeing solution weight is 1: 20, then running for 5min, heating to 95 ℃ at the speed of 1.0 ℃/min, preserving heat for 60min, then cooling to 50 ℃ at the speed of 3 ℃/min, and draining. Injecting water after the drainage is finished, and adding a soaping agent for treatment and drainage; and (5) washing and drying. The K/S values of wool loose fibers and polyamide 56 wool type short fibers and the color difference, the rubbing resistance, the soaping resistance and the perspiration stain resistance of the wool and the polyamide 56 are respectively tested.
Example 3a
Weighing 10g of pretreated wool loose fibers and polyamide 56 wool type short fibers according to the blending ratio of 70/30, placing the weighed materials in a dyeing machine, injecting 200mL of water into the dyeing machine, adding a non-ionic penetrant DM-12600.3% (o.w.f), sodium sulfate 2g/L, sodium acetate 1g/L and a leveling agent Albegal B2% into a dye bath, adding acetic acid to adjust the pH value of the dye bath to 4.0, wherein the metered unit o.w.f% represents the gram of the mass of the dye corresponding to the fabric mass of each 100g of the blended fabric. After running for 10min, adding Lanasol Red CE 2% (o.w.f) into the dyeing machine, wherein the bath ratio of the fabric weight of the wool/polyamide 56 fiber blended fabric to the dyeing solution weight is 1: 20, then running for 5min, heating to 95 ℃ at the speed of 1.0 ℃/min, preserving heat for 60min, then cooling to 50 ℃ at the speed of 3 ℃/min, and draining. Injecting water after the drainage is finished, and adding a soaping agent for treatment and drainage; and (5) washing and drying. The K/S values of wool loose fibers and polyamide 56 wool type short fibers and the color difference, the rubbing resistance, the soaping resistance and the perspiration stain resistance of the wool and the polyamide 56 are respectively tested.
Example 3b
Weighing 10g of pretreated wool loose fibers and polyamide 56 wool type short fibers according to the blending ratio of 70/30, placing the weighed materials in a dyeing machine, injecting 200mL of water into the dyeing machine, adding a non-ionic penetrant DM-12600.5% (o.w.f), 5g/L sodium sulfate, 2g/L sodium acetate and a leveling agent Albegal B2% into a dye bath, adding acetic acid to adjust the pH value of the dye bath to 4.0, wherein the metered unit o.w.f% represents the gram of the mass of the dye corresponding to the fabric mass of each 100g of the blended fabric. After running for 10min, adding Lanasol Red CE 2% (o.w.f) into the dyeing machine, wherein the bath ratio of the fabric weight of the wool/polyamide 56 fiber blended fabric to the dyeing solution weight is 1: 20, then running for 5min, heating to 95 ℃ at the speed of 1.0 ℃/min, preserving heat for 60min, then cooling to 50 ℃ at the speed of 3 ℃/min, and draining. Injecting water after the drainage is finished, and adding a soaping agent for treatment and drainage; and (5) washing and drying. The K/S values of wool loose fibers and polyamide 56 wool type short fibers and the color difference, the rubbing resistance, the soaping resistance and the perspiration stain resistance of the wool and the polyamide 56 are respectively tested.
Example 4
Weighing 10g of pretreated wool loose fibers and polyamide 56 wool type short fibers according to the blending ratio of 70/30, placing the weighed materials in a dyeing machine, injecting 200mL of water into the dyeing machine, adding a non-ionic penetrant DM-12600.3% (o.w.f), sodium sulfate 2g/L, sodium acetate 1g/L and a leveling agent Albegal B2% into a dye bath, adding acetic acid to adjust the pH value of the dye bath to 4.0, wherein the metered unit o.w.f% represents the gram of the mass of the dye corresponding to the fabric mass of each 100g of the blended fabric. After running for 10min, adding Lanasol Blue CE 2% (o.w.f) into the dyeing machine, wherein the bath ratio of the fabric weight of the wool/polyamide 56 fiber blended fabric to the dyeing solution weight is 1: 20, then running for 5min, heating to 95 ℃ at the speed of 1.0 ℃/min, preserving heat for 60min, then cooling to 50 ℃ at the speed of 3 ℃/min, and draining. Injecting water after the drainage is finished, and adding a soaping agent for treatment and drainage; and (5) washing and drying. The K/S values of wool loose fibers and polyamide 56 wool type short fibers and the color difference, the rubbing resistance, the soaping resistance and the perspiration stain resistance of the wool and the polyamide 56 are respectively tested.
Example 5
Weighing 10g of pretreated wool loose fibers and polyamide 56 wool type short fibers according to the blending ratio of 70/30, placing the weighed materials in a dyeing machine, injecting 200mL of water into the dyeing machine, adding a non-ionic penetrant DM-12600.3% (o.w.f), sodium sulfate 2g/L, sodium acetate 1g/L and a leveling agent Albegal B1% into a dye bath, adding acetic acid to adjust the pH value of the dye bath to 4.0, wherein the metered unit o.w.f% represents the gram of the mass of the dye corresponding to the fabric mass of each 100g of the blended fabric. After running for 10min, adding Lanasol Blue CE 1% (o.w.f) into the dyeing machine, wherein the bath ratio of the fabric weight of the wool/polyamide 56 fiber blended fabric to the dyeing solution weight is 1: 20, then running for 5min, heating to 95 ℃ at the speed of 1.0 ℃/min, preserving heat for 60min, then cooling to 50 ℃ at the speed of 3 ℃/min, and draining. Injecting water after the drainage is finished, and adding a soaping agent for treatment and drainage; and (5) washing and drying. The K/S values of wool loose fibers and polyamide 56 wool type short fibers and the color difference, the rubbing resistance, the soaping resistance and the perspiration stain resistance of the wool and the polyamide 56 are respectively tested.
Example 6
Weighing 10g of pretreated wool loose fibers and polyamide 56 wool type short fibers according to the blending ratio of 70/30, placing the weighed materials in a dyeing machine, injecting 200mL of water into the dyeing machine, adding a non-ionic penetrating agent DM-12600.3% (o.w.f), sodium sulfate 2g/L, sodium acetate 1g/L and a leveling agent which are respectively added with 0.3% (o.w.f) of O into a dye bath, adding acetic acid to adjust the pH value of the dye bath to 4.0, wherein the metering unit o.w.f% represents the gram of the mass of the dye corresponding to the fabric mass of each 100g of the blended fabric. After running for 10min, adding Lanasol Red CE 2% (o.w.f) into the dyeing machine, wherein the bath ratio of the fabric weight of the wool/polyamide 56 fiber blended fabric to the dyeing solution weight is 1: 20, then running for 5min, heating to 95 ℃ at the speed of 1.0 ℃/min, preserving heat for 60min, then cooling to 50 ℃ at the speed of 3 ℃/min, and draining. Injecting water after the drainage is finished, and adding a soaping agent for treatment and drainage; and (5) washing and drying. The K/S values of wool loose fibers and polyamide 56 wool type short fibers and the color difference, the rubbing resistance, the soaping resistance and the perspiration stain resistance of the wool and the polyamide 56 are respectively tested.
Comparative example 1
Weighing 10g of pretreated wool loose fibers and polyamide 56 wool type short fibers according to a blending ratio of 70/30, placing the weighed materials in a dyeing machine, injecting 200mL of water into the dyeing machine, adding a non-ionic penetrant DM-12600.3% (o.w.f), sodium sulfate 2g/L and sodium acetate 1g/L into a dye bath, adding acetic acid to adjust the pH value of the dye bath to 4.0, wherein the metered unit o.w.f% represents the gram of the mass of the dye corresponding to the fabric mass of each 100g of the blended fabric. After running for 10min, adding Lanasol Red CE 2% (o.w.f) into the dyeing machine, wherein the bath ratio of the fabric weight of the wool/polyamide 56 fiber blended fabric to the dyeing solution weight is 1: 20, then running for 5min, heating to 95 ℃ at the speed of 1.0 ℃/min, preserving heat for 60min, then cooling to 50 ℃ at the speed of 3 ℃/min, and draining. Injecting water after the drainage is finished, and adding a soaping agent for treatment and drainage; and (5) washing and drying. The K/S values of wool loose fibers and polyamide 56 wool type short fibers and the color difference, the rubbing resistance, the soaping resistance and the perspiration stain resistance of the wool and the polyamide 56 are respectively tested.
Comparative example 2
Weighing 10g of pretreated wool loose fibers and polyamide 56 wool type short fibers according to the blending ratio of 70/30, placing the weighed materials in a dyeing machine, injecting 200mL of water into the dyeing machine, adding a nonionic penetrating agent DM-12600.3% (o.w.f), sodium sulfate 2g/L, a dye-retarding agent Meistol HWS Liquid 8% (o.w.f) and a dye-leveling agent Livange Levegal FTSK 021.0% (o.w.f) into a dye bath, adjusting the pH value of the dye bath to 4.0 by acetic acid, wherein the metered unit o.w.f% represents the gram of the mass of the dye corresponding to the fabric mass of each 100g of the blended fabric. After running for 10min, adding acid dye Argacid Bril Red N-GW 2% (o.w.f) into a dyeing machine, wherein the bath ratio of the fabric weight of the wool/polyamide 56 fiber blended fabric to the dyeing solution weight is 1: 20, heating to 95 ℃ at the speed of 1.0 ℃/min, preserving the heat for 60min, then cooling to 50 ℃ at the speed of 3 ℃/min, and draining. Injecting water after the drainage is finished, and adding a soaping agent for treatment and drainage; injecting water, adding color fixing agent, keeping the temperature at 70 ℃ for 20min, draining water, and drying. The K/S values of the wool loose fibers and the polyamide 56 wool type short fibers are respectively tested. And the wool/polyamide 56 blended fabric with the blending ratio of 70/30 is dyed according to the process to test the color fastness to washing and the color fastness to rubbing.
The homochromatism and color fastness indexes of the blended fabric after dyeing according to the dyeing process of the embodiment and the comparative example are shown in table 1.
TABLE 1
The one-bath one-step dyeing method for the wool/polyamide 56 blended fabric provided by the embodiment of the invention is simple to operate, and the homochromatism and various test fastnesses of the finally prepared wool/polyamide 56 blended fabric can reach the national standard.
Compared with acid dye one-bath dyeing, the reactive dye one-bath dyeing method for the wool/polyamide 56 fiber blended fabric has bright color and higher wet treatment color fastness. On the other hand, compared with the one-bath dyeing method of the 1:2 metal complex dye, the one-bath dyeing method of the wool/polyamide 56 fiber blended fabric reactive dye provided by the invention has the advantage that the problem that the metal ions in the dyeing wastewater exceed the standard does not exist.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A one-bath one-step dyeing method for wool/polyamide 56 fiber blended fabric is characterized by comprising the following steps: carrying out one-bath one-step dyeing on the wool/polyamide 56 fiber blended fabric by adopting reactive dyes;
the reactive dyes include vinyl sulfone type reactive dyes, monochlorotriazine and vinyl sulfone sulfate type reactive dyes, double reactive group reactive dyes, bromoacrylamide type reactive dyes, for example, gorgeon Eriofast series dyes, German family W type reactive dyes, Lanasol series dyes.
2. The method of claim 1, wherein the reactive dyes comprise gorgeous eryofast Red 2B, gorgeous eryofast Blue 3R, gorgeous eryofast Yellow R, gorgeous eryofast Black M, gorgeous eryofast Red W-2R 150%, reactive gold 2R 150%, reactive Blue WBB, lanosol Red CE, lanosol Blue CE, lanosol Navy CE, preferably selected from the germanec type W reactive dyes, lanosol series.
3. The method of claim 1, wherein the blend ratio of the wool/polyamide 56 fiber blend fabric is 50/50-95/5, such as any blend ratio of 20/80, 30/70, 40/60, 50/50, 60/40, 65/35, 70/30 and 80/20; and/or the presence of a gas in the gas,
the relative viscosity of the raw material polyamide 56 of the polyamide 56 fiber is 2.4-3.2, preferably 2.5-2.8; and/or the presence of a gas in the gas,
the amino-terminated content of the polyamide 56 fiber is 40-80 mmol/kg, preferably 45-60 mmol/kg.
4. The method of claim 1, wherein the polyamide 56 fibers have a tensile strength of 2.5 to 6.0 cN/dtex; and/or the presence of a gas in the gas,
the fineness of the polyamide 56 fibers is 1.0-3.0D, preferably 2.5-3.0D; and/or the presence of a gas in the gas,
the elongation at break of the polyamide 56 fiber is 10-80%, and preferably 20-60%; and/or the presence of a gas in the gas,
the polyamide 56 fiber is polyamide 56 wool-type short fiber; and/or the presence of a gas in the gas,
the filament fineness of the wool is preferably in the range of 17 μm to 33 μm, more preferably in the range of 18 μm to 24 μm; and/or the presence of a gas in the gas,
the fiber length of the wool is preferably in the range of 18-76mm, more preferably in the range of 28-65 mm.
5. The method according to claim 1, characterized in that said dyeing method comprises in particular the steps of:
(1) placing the pretreated wool/polyamide 56 fiber blended fabric in a dyeing machine, injecting water, adding a dyeing auxiliary agent, adding acetic acid to adjust the pH value, and running for 5-15 min;
(2) adding reactive dye into the dyeing machine, running for 5-10min, heating for dyeing, and cooling and draining after dyeing is finished;
(3) injecting water after the water drainage in the step (2), and adding a soaping agent for treatment to drain water; and (5) washing and drying.
6. The method of claim 5, wherein in step (1), the dyeing assistant comprises a penetrant, sodium sulfate, sodium acetate, and a leveling agent; and/or the presence of a gas in the gas,
adding acetic acid to adjust the pH value of the dye bath to 4-4.5.
7. The method of claim 6, wherein in step (1), the osmotic agent is a non-ionic osmotic agent, DM-1260; and/or the presence of a gas in the gas,
the leveling agent is albuger ALBEGAL B.
8. The method as claimed in claim 5 or 6, wherein in the step (1), the dyeing auxiliary is added in an amount of 0.3-0.5% (o.w.f) of a penetrant, 2-5g/L of sodium sulfate, 1-2g/L of sodium acetate, and 0.5-3% (o.w.f) of a leveling agent.
9. The method of claim 5, wherein in step (2), the reactive dye is added in an amount of 0.5-5% (o.w.f); and/or the presence of a gas in the gas,
the active dye is Lanasol series dye and Demeike W type active dye; and/or the presence of a gas in the gas,
the bath ratio of the wool/polyamide 56 fiber blended fabric is 1: 2-1: 100, and preferably 1: 5-1: 30.
10. The method according to claim 5, wherein in the step (2), the temperature-rising dyeing procedure is as follows: the initial dyeing temperature is 20-30 ℃, the temperature is raised to 95-100 ℃ at the speed of 1.0-2.0 ℃/min, and the temperature is kept for 40-60 min; the temperature is reduced after the temperature rise and dyeing: cooling to 50-60 deg.C at 2-5 deg.C/min.
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