CN114855469A - Printing method for preparing functional polyester spandex knitted fabric based on liquid carbon black @ disperse dye black - Google Patents
Printing method for preparing functional polyester spandex knitted fabric based on liquid carbon black @ disperse dye black Download PDFInfo
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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
- D06P1/16—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 dispersed, e.g. acetate, dyestuffs
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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
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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
- D06P3/8214—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing ester and amide groups
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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Abstract
The invention discloses a printing method for preparing a functional polyester spandex knitted fabric based on liquid carbon black @ disperse dye black. The printing method adopting the liquid carbon black @ disperse dye black, the synthetic thickener and the adhesive can prepare black and white printing which is not stained on white ground, and the fabric has excellent color fastness, antistatic property and anti-dripping property, excellent water repellency (printing area) and hydrophilicity, and excellent air permeability and moisture permeability. The functional polyester spandex needle printed fabric prepared by the technology disclosed by the invention is simple in process flow and is a green printing and dyeing technology.
Description
Technical Field
The invention relates to a preparation technology of liquid carbon black and disperse black, in particular to a method for preparing a functional polyester spandex knitted fabric, and specifically relates to a printing method for preparing the functional polyester spandex knitted fabric based on the liquid carbon black @ disperse dye black.
Background
The polyester spandex knitted fabric with black and white patterns is an important sportswear fabric. In the black and white pattern printing process of the polyester spandex knitted fabric, the following problems need to be solved: 1) reducing water consumption and preventing dye of black patterns from staining white land; 2) the contrast between the black pattern (printed area) and the white pattern (unprinted area) is strong, and the black pattern has excellent rubbing fastness and soaping fastness. At present, direct printing is usually carried out on polyester spandex knitted fabrics by adopting black disperse dyes, such as selecting conventional and cheap disperse black dyes. Because the friction color fastness and the soaping color fastness of the conventional disperse black dye are poor, the dye in a printing area is easy to fall off and is infected with white patterns in an unprinted area in the printing post-treatment process; therefore, the treatment load after printing needs to be increased, and the color fastness of a printing area needs to be improved by adopting multiple times of reduction cleaning or soaping, so that the whiteness of an unprinted area is increased, and the increase of the consumption of auxiliaries and water in the printing and dyeing process is caused, and is a source of high wastewater and high pollution of printed fabrics.
With the rapid development of outdoor clothing fabrics of polyester spandex knitted fabrics, in the using process of the polyester spandex knitted fabrics with black and white patterns, the polyester spandex knitted fabrics need to have the functions of water repellency and easy decontamination, have excellent color fastness to sunlight (light resistance), and have excellent air permeability and moisture permeability, and good burning and dripping resistance. These fabric functions require the selection of multiple functional finishes and multiple processing steps, with a reasonable fit, to be partially functional.
In the printing of black-white patterns, economic black disperse dyes are selected, so that the white patterns in the non-printed areas are easily stained; thus, a black disperse dye which is expensive and is specially used for the polyester spandex knitted fabric, for example, a black disperse dye with excellent color fastness to sunlight, is selected, the staining degree of a white pattern in an unprinted area is reduced compared with an economic black disperse dye, and certain reduction washing or soaping is still needed to improve the whiteness of the unprinted area.
In black-white pattern printing, economic black paint is selected, the paint can be firmly combined with the fiber under the action of an adhesive, the white pattern in the non-printed area is not stained, but the color depth of the black paint can not reach the depth of the black disperse dye. And the porous structure and the capillary structure of the knitted fabric can be blocked due to the film forming effect of the adhesive, so that the air permeability and the moisture permeability of the fabric are greatly reduced. In addition, the subsequent functional finishing agent is difficult to be uniformly adsorbed and fixed on the fiber due to the film formation of the binder.
The liquid carbon black is used for printing, and a certain amount of black disperse dye can be selected to be added due to insufficient blackness of the liquid carbon black, wherein the black disperse dye comprises a black disperse dye special for polyester spandex knitted fabrics or an economic black disperse dye. At present, many reports have been made on the preparation of liquid carbon black and liquid black disperse dyes. Because the carbon black in the liquid carbon black is in a spherical structure, although data report that a small amount of lamellar structures exist in the carbon black besides the spherical structures, the carbon black in the spherical structure exists and is lack of bonding force with fibers; spherical carbon black can be coated on the fiber under the action of an adhesive, but the carbon black is easy to fall off under the action of friction, so that the dry rubbing fastness of a printing product is poor.
When the prior art is printed by using the mixed liquid of the carbon black and the disperse dye black, the problem of staining of the dye in a printing area to a white pattern (or a white ground) in an unprinted area can not be effectively solved, the bonding fastness of the carbon black and fibers is difficult to improve, and similarly, the graphene in a two-dimensional lamellar crystal structure is high in price, insufficient in dyeing black depth, weak in interaction when lamellar crystals are mutually aggregated and incapable of solving the staining and color fastness problems.
In conclusion, although there are many liquid disperse dyes, liquid carbon black, liquid graphene (including graphene oxide, redox graphene, etc.) and the above-mentioned mixtures used for printing and dyeing of polyester spandex and polyester fabrics, the unification of the conflicting problems of "white staining, good color fastness", "low cost raw materials, green ecological process with low wastewater discharge", "water repellency, easy decontamination", "adhesives, soft hand feeling, air and moisture permeability" and the like cannot be solved. Even if the functional auxiliary agent is adopted, the requirements of the multifunctional black-and-white printed polyester spandex fabric are difficult to meet.
Disclosure of Invention
The invention is developed in view of the complex problems of the prior art. When carbon black, an abrasive and water are ground to prepare liquid carbon black, the carbon black is in a spherical structure, and the lamellar carbon black disclosed in CN202110336710.1 can not meet the black-and-white printing requirements of the multifunctional polyester spandex fabric. The invention unexpectedly discovers that under the action of grinding agent and mechanical cleavage, a solvated lamellar structure with carbon black and pigment integrated is obtained by adding disperse dye into carbon black solution, and the two-dimensional lamellar structure can not return to a spherical structure, so that the two-dimensional lamellar carbon black is adsorbed and grown on a microcrystalline structure to form a stable polygonal two-dimensional lamellar structure. Thus, with the continuous cleavage of the carbon black, a polygonal two-dimensional sheet structure integrating the carbon black and the dye microcrystal can be generated. The liquid carbon black @ disperse black prepared by the invention can be used for preparing black and white printed products meeting the requirements of multifunctional polyester spandex knitted fabrics under the action of the thickening agent and the adhesive.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows:
a printing method for preparing a functional polyester spandex knitted fabric based on liquid carbon black @ disperse dye black comprises the steps of preparing the liquid carbon black @ disperse dye black, preparing printing paste and carrying out printing treatment; the liquid carbon black @ disperse dye black is prepared by mixing powdered carbon black, disperse blue, disperse orange, disperse violet, an abrasive and water, and then grinding.
Preferably, the powdered carbon black, disperse blue 291:1, disperse orange 288, disperse violet 93, an abrasive and water are mixed and ground for 2-3 hours to prepare liquid carbon black @ disperse dye black; the weight percentages of the powdery carbon black, the disperse blue 291:1, the disperse orange 288, the disperse violet 93, the grinding agent and the water are respectively 15-17%, 5-6%, 4.5-5%, 3-3.5%, 8.5-10.5% and the balance of water, wherein the weight sum of the powdery carbon black, the disperse blue 291:1, the disperse orange 288, the disperse violet 93 and the grinding agent is 100%.
In the invention, liquid carbon black @ disperse dye black, a thickening agent, an adhesive and water are mixed to obtain printing paste; preferably, the sum of the weight of the liquid carbon black @ the disperse dye black, the weight of the thickening agent, the weight of the adhesive and the weight of the water is 100%, the weight percentages of the liquid carbon black @ the disperse dye black, the weight of the thickening agent, the weight of the adhesive and the weight of the water are respectively 4.8-5.2%, 1.1-1.3% and 2-2.3%, and the balance is the water.
According to the invention, the printing color paste is utilized to carry out conventional printing, baking and drying on the polyester/spandex knitted fabric to obtain the functional polyester/spandex knitted fabric. Preferably, the baking temperature is 180-190 ℃, and the baking time is 2-3 min; and after the baking is finished, washing and drying the fabric to obtain the functional polyester spandex knitted fabric.
Due to the application of the technical scheme, the invention has the following advantages:
1) the liquid carbon black @ disperse dye black prepared by the one-step method is obviously different from a mixture of single liquid carbon black, liquid carbon black and liquid disperse dye in structure and performance, the carbon black is in a lamellar structure, and the carbon black and the disperse dye form strong interaction to form a polygonal two-dimensional lamellar structure. In this way, a polygonal two-dimensional sheet-like structure can be formed also on the fibers. Not only improves the bonding fastness of the carbon black and the fiber, but also prevents the disperse dye from being stained on the white ground.
2) The black printed pattern with high color depth can be obtained in the printing area of the liquid carbon black @ disperse dye black, the rubbing color fastness is not lower than 4 grade, and the soaping color fastness is not lower than 4 grade; the whiteness of the printing-free area (white bottom) is very high, and the phenomenon of staining is avoided. The process flow is simple, the treatment task after printing is light, only unfixed auxiliary agents on the fabric need to be removed through washing, and the chroma of the wastewater is low.
3) The liquid carbon black @ disperse dye black printing area can obtain excellent water repellency, and the water wetting contact angle is as high as 130 o (ii) a The non-printing area and the reverse side (non-printing side) of the polyester spandex fabric have excellent hydrophilicity, and the water wetting contact angle is 0 o (ii) a Thus, the contradiction between water repellency and easy-to-clean property is solved.
4) The surface of the fiber in the printing area can be uniformly covered with two-dimensional flaky carbon black, and the air permeability and the moisture permeability of the fabric cannot be reduced due to the amorphous porous structure of the carbon black. This is clearly distinguished from the reduced air and moisture permeability of fabrics that result when existing carbon blacks and binders are present.
5) In addition to the advantages, the black and white printed fabric of the polyester spandex fabric prepared from the liquid carbon black @ disperse dye black has excellent antistatic property and combustion anti-dripping property. It is important that these functionalities rely solely on the liquid carbon black @ disperse dye black and the ancillary action of the thickener, binder, without the use of functional chemical aids such as dispersants and the like.
Drawings
FIG. 1 is a schematic drawing showing a hot water washing process after printing the second polyester spandex fabric of the embodiment.
FIG. 2 is a scanning electron microscope image of the printed fabric of polyester-spandex fabric in the embodiment.
FIG. 3 is a scanning electron microscope image of the three-polyester spandex fabric printed fabric of the embodiment.
FIG. 4 is a water wetting contact angle test chart of the two polyester spandex fabric printed fabric of the embodiment.
FIG. 5 is a water wetting contact angle test chart of an unprinted polyester spandex fabric.
Detailed Description
The invention discloses a printing method for preparing a functional polyester spandex knitted fabric based on liquid carbon black @ disperse dye black, which comprises the steps of preparing the liquid carbon black @ disperse dye black, preparing printing color paste and carrying out printing treatment; mixing powdery carbon black, disperse blue, disperse orange, disperse violet, an abrasive and water, and then grinding to obtain liquid carbon black @ disperse dye black;
1) the liquid carbon black @ disperse dye black raw material is prepared from the following raw materials in percentage by mass:
15 to 17 percent of powdery carbon black
Disperse blue 291.0-6.0%
Dispersed orange 2884.5-5.0%
Disperse violet 933.0-3.5%
Abrasive 8.5-10.5%
Balance of water
2) Preparing printing paste and printing: mixing liquid carbon black @ disperse dye black, a thickening agent, an adhesive and water, uniformly stirring, and performing conventional printing, drying and baking on the polyester spandex knitted fabric; the optimized baking temperature is 180-190 ℃, and the baking time is 2-3 min. After the baking is finished, the fabric is washed and dried to obtain the functional polyester spandex knitted fabric;
the printing paste comprises the following raw materials in percentage by mass:
liquid carbon black @ disperse dye black 4.8-5.2%
Synthetic thickener 1.1-1.3%
2.0 to 2.3 percent of adhesive
The balance of water.
The invention is further described below with reference to the following examples:
all the raw materials in the examples are commercially available products such as commercially available powdered carbon black CT-5 (Anhui Black Yu pigment New materials Co., Ltd.), disperse blue 291:1 raw material, disperse orange 288 raw material, disperse purple 93 raw material, abrasive AL50 (anionic/nonionic surfactant complex, Ichnorland ivy import & export Co., Ltd.), binder HF (imitation reactive pigment printing binder, Liquid polymerization irradiation technology Co., Ltd.), synthetic thickener PTF-A (modified product of polyacrylic acid, Guangzhou Yingrui chemical science Co., Ltd.); grinding is carried out in a zirconia grinder, printing is carried out on a screen printing machine, and baking is carried out on a continuous sizing baking machine, which are conventional technologies.
Example one
Liquid carbon black @ disperse dye black was prepared by mixing 16.7 grams of powdered carbon black CT-5, 5.5 grams of disperse blue 291:1, 4.7 grams of disperse orange 288, 3.3 grams of disperse violet 93, 9.0 grams of abrasive AL50, and 60.8 grams of water and milling the zirconia for 2.5 hours.
Example two
Printing paste was prepared from 5.0 g of liquid carbon black @ disperse dye black (example one), 1.2 g of synthetic thickener PTF-A, 2.1 g of binder HF, and 91.7 g of water. And (3) performing conventional printing, baking and drying on the polyester spandex knitted fabric (the gram weight is 125 g/square meter), wherein the baking temperature is 180 ℃, and the baking time is 3 min. After the baking is finished, the fabric is washed by normal hot water (such as 80 ℃ for 10 min) and dried to prepare the functional polyester spandex knitted fabric, and the fabric after the baking is used as a contrast.
EXAMPLE III
Printing paste was prepared from 5.0 g of liquid carbon black @ disperse dye black (example one), 1.1 g of synthetic thickener PTF-A, 2.2 g of binder HF, and 91.7 g of water. And (3) performing conventional printing, baking and drying on the polyester spandex knitted fabric (the gram weight is 125 g/square meter), wherein the baking temperature is 190 ℃, and the baking time is 2 min. After the baking is finished, the fabric is washed by normal hot water (such as 80 ℃ for 10 min) and dried to prepare the functional polyester spandex knitted fabric, and the fabric after the baking is used as a contrast.
Example four
Liquid carbon black @ disperse dye black was prepared by mixing 16.0 grams of powdered carbon black CT-5, 5.5 grams of disperse blue 291:1, 4.5 grams of disperse orange 288, 3.2 grams of disperse violet 93, 9.0 grams of abrasive AL50, and 61.8 grams of water, and milling the zirconia for 2.0 hours. The functional polyester spandex knitted fabric is further prepared and is free from staining.
EXAMPLE five
Liquid carbon black @ disperse dye black was prepared by mixing 16.5 grams of powdered carbon black CT-5, 5.5 grams of disperse blue 291:1, 4.7 grams of disperse orange 288, 3.2 grams of disperse violet 93, 8.8 grams of abrasive AL50, and 61.3 grams of water and milling the zirconia for 3.0 hours. The functional polyester spandex knitted fabric is further prepared and is free from staining.
Comparative example
Mixing 16.7 g of powdered carbon black CT-5, 6.0 g of grinding agent AL50 and 40 g of water, and grinding zirconium oxide for 2.5 hours to obtain liquid carbon black; 5.5 g of disperse blue 291:1, 4.7 g of disperse orange 288, 3.3 g of disperse violet 93, 3.0 g of grinding agent AL50 and 20.8 g of water are mixed, and zirconium oxide is ground for 2.5 hours to obtain disperse dye black; mixing (conventionally stirring for 30 s) the liquid carbon black with the disperse dye black to obtain liquid carbon black/disperse dye black; 5.0 g of liquid carbon black/disperse dye black, 1.2 g of synthetic thickener PTF-A, 2.1 g of adhesive HF and 91.7 g of water are prepared into printing paste, and conventional printing, baking and drying are carried out by adopting the same method of the second embodiment to prepare the finished polyester spandex knitted fabric, which is obviously stained and has the friction color fastness of less than 3 grade.
Comparative example 1
Liquid carbon black/disperse dye black was prepared by mixing 5.5 grams of disperse blue 291:1, 4.7 grams of disperse orange 288, 3.3 grams of disperse violet 93, 9.0 grams of abrasive AL50, and 60.8 grams of water, grinding the zirconia for 135 minutes, and mixing with 16.7 grams of powdered carbon black CT-5 for 15 minutes.
5.0 g of liquid carbon black/disperse dye black, 1.2 g of synthetic thickener PTF-A, 2.1 g of adhesive HF and 91.7 g of water are prepared into printing paste, and conventional printing, baking and drying are carried out by adopting the same method of the second embodiment to prepare the finished polyester spandex knitted fabric.
Comparative example No. two
Liquid carbon black/disperse dye black was prepared by mixing 5.5 grams of disperse blue 291:1, 4.7 grams of disperse orange 288, 3.3 grams of disperse violet 93, 9.0 grams of abrasive AL50, and 35.75 grams of water, grinding the zirconia for 135 minutes, and mixing with 41.75 grams of nano carbon black emulsion (CN 113122024A example 5) for 15 minutes.
5.0 g of liquid carbon black/disperse dye black, 1.2 g of synthetic thickener PTF-A, 2.1 g of adhesive HF and 91.7 g of water are prepared into printing paste, and conventional printing, baking and drying are carried out by adopting the same method of the second embodiment to prepare the finished polyester spandex knitted fabric.
Comparative example No. three
Liquid carbon black @ disperse dye black was prepared by mixing 16.7 grams of bulk carbon black (CN 113122024A example 1), 5.5 grams of disperse blue 291:1, 4.7 grams of disperse orange 288, 3.3 grams of disperse violet 93, 9.0 grams of abrasive AL50, and 60.8 grams of water, and milling the zirconia for 2.5 hours.
5.0 g of liquid carbon black @ disperse dye black, 1.2 g of synthetic thickener PTF-A, 2.1 g of adhesive HF and 91.7 g of water are prepared into printing paste, and conventional printing, baking and drying are carried out by adopting the same method of the second embodiment to prepare the finished polyester spandex knitted fabric.
Performance testing
Antistatic property of the fabric: the electrostatic voltage (kV) and the half-life period (S) are tested on an S-5109 type electrostatic tester under the test conditions that the temperature is 20 ℃, the humidity is 35 percent, and the sample is balanced for 24 hours.
The printing performance of the fabric is as follows: the lightness (L.x.value) was measured on an Ultranscan-XE computer colorimeter. Testing color fastness on a Model 670 type rubbing fastness instrument according to GB/T3920-2008 'color fastness to rubbing color test of textiles'; and (3) carrying out a water washing resistance test on a Washtec-P washing fastness instrument under the washing conditions of 50 ℃ and 4 g/L of soap solution for 45 min, wherein the bath ratio is 1: 10.
Fabric whiteness: the whiteness of the fabric in a non-printing area is tested on a ZBD whiteness tester, and the higher the whiteness, the lower the staining property of the fabric is, and the good staining-resistant effect is shown.
Water wetting angle: the wetting performance of the fabric is tested on a dynamic contact angle measuring instrument, the injected liquid is deionized water, and the contact angle shooting is completed within 5 s.
Moisture permeability: on an FX350 TEXTEST full-automatic fabric moisture permeability tester, according to a textile fabric moisture permeability test method (part 2), an evaporation method (GB/T12704.2-2009), test conditions are as follows: the temperature was 38 deg.C, relative humidity was 50%, and the sample was a circle with a radius of 3.5 cm.
Air permeability: the air permeability of the fabric was measured on a YG461G full-automatic air permeameter according to GB/T5453-1997 determination of air permeability of textile fabrics under conditions of 20 cm square of the aperture area and 100Pa of pressure.
Table 1 shows the results of the tests for lightness and color fastness of the fabrics of examples two and three and whiteness of the non-printed area. It can be seen that the brightness of the non-hot-water-washed and hot-water-washed spandex fabrics of the second fabric example is 13.87 and 15.85 respectively, the color is dark black, the pattern and the pattern are clear (see figure 1), and the difference between the whiteness of the fabric in the non-printed area and the whiteness of the non-printed fabric is very small, which indicates that the black-and-white printing has no staining phenomenon, i.e., the color fastness of the fabric is better in the hot-water washing process, and the staining of the fabric in the non-printed area by the dye does not exist; the finished fabric of comparative example one had staining of the non-printed area fabric with dye, a whiteness of 75.6%; the finished fabric of comparative example two exhibited staining of the non-printed area with dye, and a whiteness of 76.7%. In the second embodiment, the hot-water washing of the spandex fabric has the dry-state and wet-state friction color fastness of not less than 4 grades, the soaping color fastness of not less than 4 grades, and the hot-water washing can improve the wet-state friction color fastness by 0.5 grade; the finished fabric of comparative example three had the problem of low color fastness, with the dry rub fastness of spandex fabric washed with hot water being grade 3, and the soaping rub fastness being grade 3-4. Similarly, the brightness of the spandex fabric without hot water washing and the brightness of the spandex fabric without hot water washing of the fabric in example three are respectively 13.92 and 15.63, the color is dark black, the dry-state and wet-state friction color fastness of the spandex fabric washed with hot water is not lower than 4 grade, and the soaping color fastness is not lower than 4 grade. After hot water washing, the wet friction fastness can be improved by 0.5 grade. The difference between the whiteness of the fabric in the non-printing area and the whiteness of the fabric not printed is very small, which indicates that the black-white printing has no staining phenomenon, namely, the staining of the fabric in the non-printing area by dye does not exist in the hot water washing process. Compared with the black disperse dye special for the existing commercial polyester spandex knitted fabric, the water consumption for washing is less than one third of the minimum water consumption in the prior art.
Fig. 2 and 3 are scanning electron micrographs of the printed fabric of the second and third embodiments, respectively, which demonstrate that a large number of void structures exist between fibers, and that a spherical structure is not observed, both of which are two-dimensional lamellar structures, which is very obvious in fig. 3, and a large number of polygonal two-dimensional lamellar structures exist. This strongly demonstrates that the liquid carbon black @ disperse dye black disclosed in the present patent is a new structure with superior performance over conventional carbon black structures.
Table 2 shows the results of the tests of moisture permeability, air permeability, antistatic property and water contact angle for the fabrics of example two and example three. As can be seen, the moisture permeabilities of the second and third examples were reduced by 10.15% and 10.21%, respectively, and both exceeded 2800g/d/m 2 And has excellent moisture permeability. The air permeability of the second embodiment and the third embodiment is respectively reduced by 1.75 percent and 2.35 percent, the air permeability is over 260mm/s, and the air permeability is excellent; the air permeability of the water repellent fabric dyed and finished by the black disperse dye special for the existing commercial polyester spandex knitted fabric is greatly reduced and is not more than 245 mm/s. The second and third examples have excellent antistatic property, half-life time less than 1s and electrostatic voltage about 1.0KV as the non-printed fabric. The water contact angles of the printing areas of the second and the third examples exceed 130 o Excellent water repellency (see figure 4); rather than a printed area(including the other side of the fabric) is completely hydrophilic with a water contact angle of 0 o And has excellent hydrophilicity (see figure 5).
The fabrics of examples two and three did not melt and drip during burning, as compared to the fabric that was not printed, which resulted in the char formation of the two-dimensional lamellar carbon black.
The prior art has technical difficulties in preparing lamellar liquid carbon black. Although there are many methods for preparing graphene with a two-dimensional sheet layered crystal structure by mechanically cleaving graphite, the graphene is expensive and cannot improve the rubbing fastness, which is caused by the two-dimensional sheet layered crystal structure of the graphene, the interaction force between layered crystals is weak, the graphene is easy to fall off due to external force rubbing even under the action of an adhesive, and the rubbing fastness cannot be obviously improved; likewise, the graphene and black disperse dye particles are still separate from each other. In the invention, the liquid carbon black @ disperse dye black is in a lamellar structure, the mutual aggregation and the interaction force with the fiber in the presence of the adhesive are obviously increased, and the bonding fastness with the fiber and the rubbing fastness are improved.
Claims (10)
1. A printing method for preparing a functional polyester spandex knitted fabric based on liquid carbon black and disperse dye black comprises the steps of preparing the liquid carbon black and the disperse dye black, preparing printing color paste and carrying out printing treatment.
2. The printing method for preparing the functional polyester spandex knitted fabric based on the liquid carbon black @ disperse dye black as claimed in claim 1, wherein the liquid carbon black @ disperse dye black is prepared by mixing powdered carbon black, disperse blue 291:1, disperse orange 288, disperse violet 93, an abrasive and water and grinding for 2-3 hours.
3. The printing method for preparing the functional polyester spandex knitted fabric based on the liquid carbon black @ disperse dye black is characterized in that the weight percentages of the powdered carbon black, the disperse blue 291:1, the disperse orange 288, the disperse violet 93, the grinding agent and the water are respectively 15-17%, 5-6%, 4.5-5%, 3-3.5% and 8.5-10.5%, and the balance is water, wherein the weight percentage of the powdered carbon black, the disperse blue 291:1, the disperse orange 288, the disperse violet 93 and the grinding agent is 100%.
4. The printing method for preparing the functional polyester spandex knitted fabric based on the liquid carbon black @ disperse dye black of claim 1 is characterized in that the liquid carbon black @ disperse dye black, a thickening agent, an adhesive and water are mixed to obtain printing paste.
5. The printing method for preparing the functional polyester spandex knitted fabric based on the liquid carbon black @ disperse dye black is characterized in that the sum of the weight of the liquid carbon black @ disperse dye black, the weight of the thickening agent, the weight of the adhesive and the weight of water is 100%, the weight percentages of the liquid carbon black @ disperse dye black, the weight of the thickening agent, the weight of the adhesive and the weight of the water are respectively 4.8-5.2%, 1.1-1.3% and 2-2.3%, and the balance is water.
6. The printing method for preparing the functional polyester spandex knitted fabric based on the liquid carbon black @ disperse dye black as claimed in claim 1, wherein the printing treatment comprises printing, baking and drying.
7. The printing method for preparing the functional polyester spandex knitted fabric based on the liquid carbon black @ disperse dye black as claimed in claim 6, wherein the baking temperature is 180-190 ℃, and the baking time is 2-3 min; and after the baking is finished, washing and drying the fabric to obtain the functional polyester spandex knitted fabric.
8. The functional polyester spandex knit fabric prepared by the printing method for preparing the functional polyester spandex knit fabric based on the liquid carbon black @ disperse dye black of claim 1.
9. A printing paste based on liquid carbon black @ disperse dye black is characterized in that the liquid carbon black @ disperse dye black, a thickening agent, an adhesive and water are mixed to obtain the printing paste; the liquid carbon black @ disperse dye black is prepared by mixing powdered carbon black, disperse blue, disperse orange, disperse violet, an abrasive and water, and then grinding to obtain the liquid carbon black @ disperse dye black.
10. Use of a printing paste based on liquid carbon black @ disperse dye black as claimed in claim 9 for the preparation of functional polyester spandex knits.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210393995.7A CN114855469B (en) | 2022-04-15 | 2022-04-15 | Printing method for preparing functional polyester spandex knitted fabric based on liquid carbon black @ disperse dye black |
| PCT/CN2022/113946 WO2023197493A1 (en) | 2022-04-15 | 2022-08-22 | Printing method for preparing functional polyester spandex knitted fabric based on liquid carbon black @ disperse dye black |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210393995.7A CN114855469B (en) | 2022-04-15 | 2022-04-15 | Printing method for preparing functional polyester spandex knitted fabric based on liquid carbon black @ disperse dye black |
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| CN114855469A true CN114855469A (en) | 2022-08-05 |
| CN114855469B CN114855469B (en) | 2023-07-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023197493A1 (en) * | 2022-04-15 | 2023-10-19 | 苏州大学 | Printing method for preparing functional polyester spandex knitted fabric based on liquid carbon black @ disperse dye black |
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| CN114855469B (en) * | 2022-04-15 | 2023-07-04 | 苏州大学 | Printing method for preparing functional polyester spandex knitted fabric based on liquid carbon black @ disperse dye black |
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| CN114855469B (en) | 2023-07-04 |
| WO2023197493A1 (en) | 2023-10-19 |
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