CN112227095A - One-bath one-step dyeing method of wool/polyamide 56 fiber blended fabric - Google Patents
One-bath one-step dyeing method of wool/polyamide 56 fiber blended fabric Download PDFInfo
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- CN112227095A CN112227095A CN201910634544.6A CN201910634544A CN112227095A CN 112227095 A CN112227095 A CN 112227095A CN 201910634544 A CN201910634544 A CN 201910634544A CN 112227095 A CN112227095 A CN 112227095A
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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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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/0032—Determining dye recipes and dyeing parameters; Colour matching or monitoring
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- 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
- D06P1/36—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 mordant dyes ; using metallisable 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
- D06P1/39—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using acid dyes
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: and (3) dyeing the wool/polyamide 56 fiber blended fabric by adopting acid dye or 1:2 metal complex dye 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 wool/polyamide 6 or polyamide 66 blending dyeing process in the one-bath dyeing of wool/polyamide 56.
Description
Technical Field
The invention belongs to the field of textile printing and dyeing, and particularly relates to a one-bath one-step dyeing method of a wool/polyamide 56 fiber blended fabric.
Background
The one-bath one-step dyeing method is a dyeing process that the blended fabric is dip-dyed by selecting respective dyes in the same dyeing bath and is fixed by the same color fixing process.
Polyamide 56 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. Particularly, the initial modulus of the polyamide 56 is closer to that of wool, so that the softness of the polyamide is comparable to that of the wool, the polyamide has a higher blending ratio, and the polyamide can be widely applied to development of high-end wool blended textiles.
The ends of macromolecular chains of wool and polyamide fibers have amino groups, and can be dyed by acid dyes or 1:2 metal complex dyes, but because of the difference of fiber structures, the wool and the polyamide components dyed in one bath are easy to have color difference, and usually the polyamide component is dark and light. The main factors influencing the homochromatism of the wool and the polyamide one-bath dyeing mainly comprise one or more of the types and specifications of the wool and the polyamide fiber, the types and concentrations of dyes, dyeing temperature, dyeing pH value, dye inhibitor and the like. The distribution of the dye between the wool and the polyamide fiber depends on the affinity of the dye to the two fibers, the dye affinity is related to the molecular weight, linearity or coplanarity, the number of water-soluble groups and other structures of the dye, the smaller the molecular weight is, the poorer the linearity or coplanarity is, the more the water-soluble groups are, the smaller the affinity of the dye to the polyamide is, and the dyeing depth of the polyamide is reduced, so that the homochromatic property with the wool is improved; the dyeing temperature is increased, and the dyeing pH value is reduced, so that the wool can be dyed by the dye at the later dyeing stage, and the homochromatism is improved; the nylon dye-resistant agent is generally an anionic surfactant or an anionic high molecular compound, has high affinity to the polyamide fiber, and is adsorbed on the polyamide fiber more at the initial dyeing stage, so that the dye-uptake of acid dye to the polyamide is reduced, and the homochromatism is improved.
However, because the glass transition temperature of polyamide 56 is lower than that of polyamide 6 and polyamide 66, the dyeing rate at the initial dyeing stage is higher, and the initial dyeing rate is higher, a series of adjustments need to be made on the dyes, the dye bath pH value control method, the application of the dye blocker and the like of the existing polyamide 6 or polyamide 66 and wool blended one-bath dyeing process to realize the one-bath dyeing of wool and polyamide 56 fibers.
Disclosure of Invention
The invention aims to provide a 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 an acid dye or a 1:2 metal complex dye;
wherein, the method also adopts a dye-blocking agent which is selected from ZETESAL NT-1C, Mesitol BFN and Mesitol HWS Liquid, and preferably the Mesitol HWS Liquid.
The acid dye comprises level-dyeing acid dye, semi-shrink-resistant acid dye and shrink-resistant acid dye, the dyeing affinity of the three dyes to polyamide 56 fiber is sequentially increased, the wet-treatment color fastness is also sequentially improved, and the two aspects of dyeing affinity and wet-treatment color fastness are combined, the semi-shrink-resistant acid dye is preferred, and the semi-shrink-resistant acid dye with mono-sulfonic acid group or di-sulfonic acid group is further preferred, for example, the dye of Argacid N series of Yagedet (provided by Yayu textile chemical industry in Shanghai).
The Yagester Argacid N series dyes include, but are not limited to, Yagester Argacid Bril Blue N-GW, Yagester Argacid Bril Yellow N-GW, and Yagester Argacid Bril Red N-GW.
The 1:2 metal complex dye is Lanasury Lanaset PA series dye (provided by the Hensman chemical industry), and non-limiting comprises Lanasury Lanaset Red PA, Lanasury Lanaset Yellow PA, Lanasury Lanaset Blue PA XN and Lanasury Lanaset Black PA-R.
In some preferred embodiments of the invention, the dye is preferably a jacester Argacid N series dye that has less affinity for polyamide 56 and better homochromy in wool/polyamide 56 one-bath dyeing than Lanaset PA series dyes.
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 blended fabric of the polyamide 56 wool type short fibers and the wool fibers is dyed at a significantly lower temperature and time, and produces a deep, uniform and lasting color, the dyeing time is reduced compared with that of the conventional polyamide fibers, and the wool and the polyamide have high homochromatism and consistency in depth. Preferably, the difference between the K/S values of the wool and the polyamide 56 fibers is within 5; further preferably, the difference between the K/S values of the wool and polyamide 56 fibers is within 3; particularly preferably, the difference between the K/S values of the wool and polyamide 56 fibers is within 2.
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 staining method further comprises the use of a dye blocker, which includes but is not limited to ZETESAL NT-1C (supplied by Simma chemical), Mesitol BFN (supplied by Tuona chemical) and Mesitol HWS Liquid (supplied by Tuona chemical), preferably Mesitol HWS Liquid. The Mesitol HWS Liquid is a complex Liquid of methyl linked condensate of aryl sulfonic acid and hydroxy aryl sulfone, can endow polyamide with excellent blocking effect, so as to reduce the polyamide dyeing of acid dye in the early stage of dyeing, thereby achieving the homochromatism of wool/polyamide blended fabric.
The dyeing method also adopts inorganic acid or acid releasing agent to control the pH value of the dyeing bath, the inorganic acid comprises acetic acid, formic acid, hydrochloric acid, sulfuric acid and the like in a non-limiting way, the acid releasing agent is a nonionic organic ester compound, can be slowly decomposed into acid and alcohol along with the increase of temperature, and releases acidic substances, so that the pH value of the dyeing bath can be slowly reduced to reach the pH value required by dye-uptake; non-limiting examples of the acid-releasing agent include acid-releasing agent A35 (available from Virginia textile auxiliary (Jiangmen), acid-releasing agent A40 (available from Virginia textile auxiliary (Jiangmen)), acid-releasing agent DM-2725 (available from Guangdong Germany fine chemical industry Co., Ltd.), and further preferably acid-releasing agent A35. When the acid releasing agent is adopted, the pH value of the dye bath at the initial dyeing stage is near neutrality, so that the dye uptake rate and the initial dye uptake of the dye at the initial dyeing stage to the polyamide 56 fiber are reduced, and further, the homochromatism of wool and the polyamide 56 fiber is improved.
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, and running for 10-20 min;
(2) adding acid dye and acid releasing agent into the dyeing machine, running for 5-10min, heating for dyeing, and cooling for 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; injecting water, adding color fixing agent, keeping the temperature at 70-80 deg.C for 10-30min, draining water, and oven 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 examples of the present invention, in step (1), the dyeing assistant comprises a penetrant, sodium sulfate, a leveling agent, a dye-blocking agent;
preferably, the penetrant is a penetrant DM-1260 (provided by Guangdong Germany Fine chemical Co., Ltd.); and/or the presence of a gas in the gas,
the leveling agent is rivalger Levegal FTSK (provided by Tuona chemical), DM-2204 (provided by Guangdong Demei fine chemical Co., Ltd.), Albegal B or Albegal SET (provided by Hensman chemical), and the leveling agent is preferably rivalger Levegal FTSK (provided by Tuona chemical); and/or the presence of a gas in the gas,
the dye blockers include, but are not limited to, ZETESAL NT-1C (supplied by SmaSeman chemical), Mesitol BFN (supplied by Tuona chemical), and Mesitol HWS Liquid (supplied by Tuona chemical), preferably Mesitol HWS Liquid.
In some preferred embodiments of the present invention, in step (1), the inventors experimentally found that the dyeing assistant is added in an amount of 0.5 to 0.5% (o.w.f) of a penetrant DM-12600.3, 2 to 5g/L of sodium sulfate, 0.5 to 1.5% (o.w.f) of a leveling agent Levegal FTSK, 6 to 10% (o.w.f) of a dye-retarder mesiol HWS Liquid, and the metering unit o.w.f% represents the gram of the mass of the dye or assistant corresponding to the fabric mass per 100g of the blended fabric, which is beneficial for reducing the color difference of the wool/polyamide 56 fiber.
In some preferred examples of the present invention, in the step (2), the acid releasing agent is selected from one or more of acid releasing agent a35 (provided by pegmatian textile assistant (jiangmen)), acid releasing agent a40 (provided by pegmatian textile assistant (jiangmen)), acid releasing agent DM-2725 (provided by guangdong de mei fine chemical industry, ltd.), preferably acid releasing agent a35 (provided by pegmatian textile assistant (jiangmen)),
preferably, the acid-releasing agent is added in an amount of 0.5-2 g/L.
In some preferred embodiments of the present invention, in the step (2), the acid dye is selected from the group consisting of Argacid N series dyes; the Yagester Argacid N series dyes include, but are not limited to, Yagester Argacid Bril Blue N-GW, Yagester Argacid Bril Yellow N-GW, and Yagester Argacid Bril Red N-GW.
It should be noted that the amount of the dye-blocking agent is in inverse proportion to the amount of the dye, and is in direct proportion to the proportion of the polyamide 56 in the fabric. The selection of proper dye-retarding agent and dye and the control of the dosage of the dye-retarding agent and dye are beneficial to avoiding the obvious damage to the fiber and the wool.
In the step (2), the addition amount of the acid dye is determined according to the dyeing depth and the color requirement, and the addition amount is preferably 0.5-5% (o.w.f).
In the step (2), the temperature-rising dyeing 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 40-80 min; and/or the presence of a gas in the gas,
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 dyeing is 1: 2-1: 100, preferably 1: 5-1: 20; 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; and/or the presence of a gas in the gas,
the color fixing agent is one or more of polyphenols, aromatic sulfonic acid polycondensate synthetic tannin or natural tannin, for example, the color fixing agent DM-2535 (provided by Guangdong German fine chemical Co., Ltd.).
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:
according to the one-bath dyeing method of the wool/polyamide 56 fiber blended fabric, the homochromatism of wool and polyamide 56 fibers during one-bath dyeing is improved through dye selection, acid releasing agent application, dye blocking agent application and the like, the obtained wool/polyamide 56 fiber blended dyed fabric achieves depth consistency, and the defects of the traditional wool/polyamide 6 or polyamide 66 blended dyeing process in one-bath dyeing of wool/polyamide 56 are overcome.
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 wool loose fibers and the polyamide wool type short fibers according to a blending ratio, putting the 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 and CIE (CIE DE) color difference between the wool and the polyamide 56 wool type short fibers after dyeing. The K/S values and CIE DE were determined using a Datacolor color matching system, D65 illuminant, 10 ℃ field of view, large aperture.
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. 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.
5. 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, dye-blocking agent, leveling agent, etc. are all commercially available;
the dyes Yagester Argacid Bril Blue N-GW, Yagester Argacid Bril Yellow N-GW, Yagester Argacid Bril Red N-GW were purchased from Shanghai Yayu textile chemical industry;
dyes Lanasury Lanaset Red PA, Lanasury Lanaset Yellow PA, Lanasury Lanaset Blue PA XN, Lanasury Lanaset Black PA-R were purchased from Hensman chemical;
the color fixing agent is DM-2535, which is purchased from Guangdong Germany fine chemical industry Co., Ltd; the soaping agent is a standard synthetic detergent and is purchased from Shanghai textile industry technical supervision;
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, and the elongation at break is 60%;
wool loose fibers were purchased from 64 counts of Australian wool, New neutralization wool Co., Ltd, Zhejiang.
The specification of the polyamide 66 wool type short fiber is 3.0D × 76 mm; the relative viscosity of the fiber raw material polyamide 66 is 2.7, the content of terminal amino groups is 44mmol/kg, the tensile strength is 4.5cN/dtex, and the elongation at break is 50%;
the specification of the polyamide 6 wool type short fiber is 3.0D × 76 mm; the relative viscosity of the fiber raw material polyamide 6 is 2.5, the content of terminal amino groups is 46mmol/kg, the tensile strength is 4.0cN/dtex, and the elongation at break is 58%;
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 nonionic penetrating agent DM-12600.3% (o.w.f), sodium sulfate 2g/L, a dye-retarding agent Meistol HWS Liquid 9% (o.w.f) and a dye-leveling agent Livange Levegal FTSK 021.0% (o.w.f) into a dye bath, wherein the metering unit o.w.f% represents the gram of the mass of the dye corresponding to the fabric mass of the blended fabric per 100 g. After running for 10min, adding acid dye Argacid Bril Red N-GW 1% (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, running for 5min after acid releasing agent A350.5g/L, heating to 98 ℃ at 1.0 ℃/min, preserving heat for 60min, then cooling to 50 ℃ at 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 50/50 is dyed according to the process to test the color fastness to washing and the color fastness to rubbing.
Example 2a
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 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 021.5% (o.w.f) into a dye bath, wherein the metering unit o.w.f% represents the gram of the mass of the dye corresponding to the fabric mass of the blended fabric per 100 g. After running for 10min, adding acid dye Argacid Bril Blue 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, running for 5min after acid releasing agent A351.0 g/L, heating to 98 ℃ 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; 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 50/50 is dyed according to the process to test the color fastness to washing and the color fastness to rubbing.
Example 2b
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 nonionic penetrating agent DM-12600.5% (o.w.f), 5g/L of sodium sulfate, a dye-retarding agent Meistol HWS Liquid 8% (o.w.f) and a dye-leveling agent Livangal Levegal FTSK 020.5% (o.w.f) into a dye bath, wherein the metering unit o.w.f% represents the gram of the mass of the dye corresponding to the fabric mass of the blended fabric per 100 g. After running for 10min, adding acid dye Argacid Bril Blue 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, running for 5min after acid releasing agent A351.0 g/L, heating to 98 ℃ 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; 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 50/50 is dyed according to the process to test the color fastness to washing and the color fastness to rubbing.
Example 3
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 nonionic penetrating agent DM-12600.3% (o.w.f), sodium sulfate 2g/L, a dye-retarding agent Meistol HWS Liquid 7% (o.w.f) and a dye-leveling agent Livange Levegal FTSK 021.5% (o.w.f) into a dye bath, wherein the metering unit o.w.f% represents the gram of the mass of the dye corresponding to the fabric mass of the blended fabric per 100 g. After running for 10min, adding acid dye Argacid Bril Yellow N-GW 3% (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, running for 5min after acid releasing agent A351.0 g/L, heating to 98 ℃ 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; 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 50/50 is dyed according to the process to test the color fastness to washing and the color fastness to rubbing.
Example 4
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 nonionic penetrating agent DM-12600.3% (o.w.f), sodium sulfate 2g/L, a dye-retarding agent Meistol HWS Liquid 9% (o.w.f) and a dye-leveling agent Livange Levegal FTSK 021.0% (o.w.f) into a dye bath, wherein the metering unit o.w.f% represents the gram of the mass of the dye corresponding to the fabric mass of the blended fabric per 100 g. After running for 10min, adding 1:2 metal complex dye Lanaset Red PA 1% (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, running for 5min after acid releasing agent A350.5g/L, heating to 98 ℃ at 1.0 ℃/min, preserving heat for 60min, then cooling to 50 ℃ at 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 50/50 is dyed according to the process to test the color fastness to washing and the color fastness to rubbing.
Example 5
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 nonionic penetrating agent DM-12600.3% (o.w.f), sodium sulfate 2g/L, a dye-retarding agent Meistol HWS Liquid 9% (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 1% (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, running for 5min, heating to 98 ℃ 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; 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 50/50 is dyed according to the process to test the color fastness to washing and the color fastness to rubbing.
Example 6
The pretreated wool loose fibers and the polyamide 56 staple fibers were weighed according to the blend ratio of 60/40, dyed according to the dyeing method described in example 1, and tested for the K/S values of the wool loose fibers and the polyamide 56 staple fibers, respectively. And the wool/polyamide 56 blended fabric with the blending ratio of 60/40 is dyed according to the process to test the color fastness to washing and the color fastness to rubbing.
Example 7
The pretreated wool loose fibers and the polyamide 56 wool type short fibers are weighed according to the blending ratio of 80/20 and dyed according to the dyeing method described in the example 2a, and 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 80/20 is dyed according to the process to test the color fastness to washing and the color fastness to rubbing.
Comparative 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 nonionic penetrating agent DM-12600.3% (o.w.f), sodium sulfate 2g/L and a leveling agent Liverge Levegal FTSK 021.0% (o.w.f) into a dye bath, 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 acid dye Argacid Bril Red N-GW 1% (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, running for 5min after acid releasing agent A350.5g/L, heating to 98 ℃ at 1.0 ℃/min, preserving heat for 60min, then cooling to 50 ℃ at 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 50/50 is dyed according to the process to test the color fastness to washing and the color fastness to rubbing.
Comparative example 2
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 nonionic penetrating agent DM-12600.3% (o.w.f), sodium sulfate 2g/L, a dye-retarding agent Meistol HWS Liquid 4% (o.w.f) and a dye-leveling agent Livange Levegal FTSK 021.0% (o.w.f) into a dye bath, wherein the metering unit o.w.f% represents the gram of the mass of the dye corresponding to the fabric mass of the blended fabric per 100 g. After running for 10min, adding acid dye Argacid Bril Red N-GW 1% (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, running for 5min after acid releasing agent A350.5g/L, heating to 98 ℃ at 1.0 ℃/min, preserving heat for 60min, then cooling to 50 ℃ at 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 50/50 is dyed according to the process to test the color fastness to washing and the color fastness to rubbing.
Comparative example 3
Weighing 10g of pretreated wool loose fibers and polyamide 6 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 nonionic penetrating agent DM-12600.3% (o.w.f), sodium sulfate 2g/L, sodium acetate 1.0g/L, a dye-blocking agent Meisitol HWS Liquid 9% (o.w.f) and a dye-leveling agent Livangal Levegal FTSK 021.0% (o.w.f) 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 the blended fabric per 100 g. After running for 10min, adding acid dye Argacid Bril Red N-GW 1% (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 98 ℃ 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; 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 (3) dyeing the wool/polyamide 6 blended fabric with the blending ratio of 50/50 according to the process, and testing the color fastness to washing and the color fastness to rubbing.
Comparative example 4
Weighing 10g of pretreated wool loose fibers and polyamide 66 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 nonionic penetrating agent DM-12600.3% (o.w.f), sodium sulfate 2g/L, sodium acetate 1.0g/L, a dye-blocking agent Meisitol HWS Liquid 9% (o.w.f) and a dye-leveling agent Livangal Levegal FTSK 021.0% (o.w.f) 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 the blended fabric per 100 g. After running for 10min, adding acid dye Argacid Bril Red N-GW 1% (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 98 ℃ 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; 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 66 blended fabric with the blending ratio of 50/50 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
As can be seen from Table 1, after the wool fiber and the polyamide 56 fiber are dyed by the dyeing process disclosed by the embodiment of the invention, the color difference is within 2, the wool fiber and the polyamide 56 fiber have good homochromatism, and the color fastness index can reach 4 grades and above. From example 1 and comparative examples 2-4, it can be seen that the application of the wool/polyamide 56 fiber blended one-bath dyeing process to the wool/polyamide 6 or polyamide 66 blended fabric in one-bath dyeing tends to result in the color of wool being darker than that of polyamide fiber, and the application of the wool/polyamide 6 or polyamide 66 blended fabric in one-bath dyeing to the wool/polyamide 56 fiber blended one-bath dyeing tends to result in the color of wool being lighter than that of polyamide 56 despite the improved homochromatism of wool and polyamide 56.
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 finally prepared wool/polyamide 56 blended fabric is bright in color and soft in hand feeling, and all test fastnesses can reach the national standard.
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 an acid dye or a 1:2 metal complex dye;
wherein, the method also adopts a dye-blocking agent which is selected from ZETESAL NT-1C, Mesitol BFN and Mesitol HWS Liquid, and preferably the Mesitol HWS Liquid.
2. The method according to claim 1, wherein the acid dyes comprise levelling acid dyes, semi-milling resistant acid dyes, preferably semi-milling resistant acid dyes, further preferably mono-or bis-milling resistant acid dyes, for example, the jacester Argacid N series dyes; and/or the presence of a gas in the gas,
the Yagester Argacid N series dyes include, but are not limited to, Yagester Argacid Bril Blue N-GW, Yagester Argacid Bril Yellow N-GW, Yagester Argacid Bril Red N-GW; and/or the presence of a gas in the gas,
the 1:2 metal complex dye is Lanasury Lanaset PA series dye, which comprises Lanasury Lanaset Red PA, Lanasury Lanaset Yellow PA, Lanasury Lanaset Blue PA XN and Lanasury Lanaset Black PA-R without limitation; 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.
3. 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 blending ratio of the wool/polyamide 56 fiber blended fabric is 50/50-95/5, and/or,
the filament fineness of the wool is in the range of 17 μm to 33 μm, preferably in the range of 18 μm to 24 μm; and/or the presence of a gas in the gas,
the wool has a fibre length in the range of 18-76mm, preferably a fibre length in the range of 28-65 mm.
4. The method of claim 1, wherein the method further comprises controlling the bath pH with an inorganic acid or an acid-releasing agent,
the inorganic acids include, but are not limited to, acetic acid, formic acid, hydrochloric acid, sulfuric acid;
the acid releasing agent is selected from acid releasing agent A35, acid releasing agent A40, and acid releasing agent DM-2725, and more preferably acid releasing agent A35.
5. The method of claim 1, wherein the method comprises the steps of:
(1) placing the pretreated wool/polyamide 56 fiber blended fabric in a dyeing machine, injecting water, adding a dyeing auxiliary agent, and running for 10-20 min;
(2) adding acid dye and acid releasing agent into the dyeing machine, running for 5-10min, heating for dyeing, and cooling for 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; injecting water, adding color fixing agent, keeping the temperature at 70-80 deg.C for 10-30min, draining water, and oven drying.
6. The method of claim 5, wherein the method comprises the steps of: in the step (1), the step (c),
the pretreatment is to refine the wool/polyamide 56 fiber blended fabric and remove wool oil, spinning oil and weaving oil on the wool/polyamide 56 fiber blended fabric; and/or the presence of a gas in the gas,
the dyeing auxiliary comprises a penetrating agent, sodium sulfate, a leveling agent and a dye-blocking agent.
7. The method of claim 6,
the penetrating agent is a penetrating agent DM-1260; and/or the presence of a gas in the gas,
the leveling agent is rivalger Levegal FTSK, DM-2204, Albemager Albegal B or Albemager SET, and is preferably the leveling agent of rivalger Levegal FTSK.
8. The method of claim 6, wherein the dyeing assistant is added in an amount of penetrant DM-12600.3-0.5% (o.w.f), sodium sulfate 2-5g/L, leveling agent Livangel Levegal FTSK 0.5-1.5% (o.w.f), and dye blocker MesitollHWS Liquid 6-10% (o.w.f).
9. The method according to claim 5, wherein in the step (2), the acid releasing agent is selected from one or more of acid releasing agent A35, acid releasing agent A40, acid releasing agent DM-2725, preferably acid releasing agent A35; and/or the presence of a gas in the gas,
the acid releasing agent is added in an amount of 0.5-2 g/L.
10. The method according to claim 5, wherein in the step (2), the temperature-rising dyeing is: 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 40-80 min; and/or the presence of a gas in the gas,
the temperature is reduced after the temperature rise and dyeing: cooling to 50-60 deg.C at 2-5 deg.C/min; and/or the presence of a gas in the gas,
the bath ratio of the wool/polyamide 56 fiber blended fabric dyeing is 1: 2-1: 100, preferably 1: 5-1: 20.
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| CN115478444A (en) * | 2021-05-31 | 2022-12-16 | 上海凯赛生物技术股份有限公司 | Uniform dyeing system and dyeing method for polyamide 56 fabric |
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| CN114214849A (en) * | 2021-11-01 | 2022-03-22 | 江苏阳光股份有限公司 | Preparation method of functional environment-friendly worsted fabric and worsted fabric |
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