Printing and dyeing process of high-color-fastness silk fabric
Technical Field
The invention relates to the technical field of textile fabric processing, in particular to a printing and dyeing process of a real silk fabric with high color fastness.
Background
At present, dyes and printing and dyeing processes adopted by real silk fabric printing and dyeing have a plurality of weaknesses, which are mainly reflected in the following aspects:
(1) the wet processing fastness is poor, the deep and medium colors are about 2-3 grades generally, the single dye printing and dyeing is only about 2 grades, the clothes can not be washed in one bath with other clothes, and the color fading can cause light color and old color.
(2) The color fastness to sunlight is poor, generally only about l-2 grade, especially the bright colors such as cyan, lake blue, brilliant blue and the like, can fade in summer, lose the timeliness of taking, and cannot be accepted by wide consumers.
(3) With the gradual maturity of the shrink-proof and crease-resistant finishing technology, the defects of fading, staining, easy aging and the like of washing become prominent day by day, and the problem of color fastness is difficult to achieve 'washing and wearing' in a real sense.
(4) Whether the silk is an interior product or an export product, which generally requires high-fastness printing and dyeing of silk broadcloth (the fastness to washing and soaping is required to be more than 4 grade, and the wet rubbing fastness is more than 3 grade), the industrial production cannot be realized in the current factories.
Therefore, there is a need to develop a printing and dyeing process for silk fabrics with high color fastness to solve the problems of the printing and dyeing process for silk fabrics.
Disclosure of Invention
The invention aims to provide a printing and dyeing process of a real silk fabric with high color fastness.
In order to solve the technical problems, the invention provides a printing and dyeing process of a silk fabric with high color fastness, which comprises the following steps:
s1, boiling a real silk fabric by using a sodium carbonate solution, washing with water, drying, and treating by using plasma;
s2, dissolving a dye in an organic solvent, adding a functional monomer A and a functional monomer B, ultrasonically dissolving, adding a cross-linking agent and an initiator, ultrasonically mixing uniformly, and introducing nitrogen for 8-12 min to obtain a reaction solution; the functional monomer A is methyl methacrylate, and the functional monomer B is one of acrylic acid, methacrylic acid and acrylamide;
and S3, under the protection of nitrogen, soaking the real silk fabric obtained by the plasma treatment in the step S1 in the reaction liquid obtained in the step S2, reacting for 3-5h at the temperature of 60-80 ℃, washing, and drying to obtain the real silk fabric with high color fastness.
Preferably, in the step S1, the concentration of the sodium carbonate solution is 20-50g/L, the usage ratio of the sodium carbonate solution to the real silk fabric is (8-10) L:1kg, and the water boiling time is 20-30 min.
Preferably, in step S1, the plasma processing conditions are: the gas adopts oxygen or nitrogen, the treatment power is 100-300W, the pressure is 50-60Pa, and the treatment time is 20-30 min.
Preferably, in step S2, the amount ratio of the dye, the organic solvent, the functional monomer A, the functional monomer B, the cross-linking agent and the initiator is (4-8) g, 1000mL, (1.8-3.6) g, (0.2-0.4) g, (0.5-1.0) g, (50-70) mg.
Preferably, in step S2, the dye is reactive brilliant blue K-GR, reactive brilliant blue X-BR, reactive yellow X-R, reactive violet K-3R, reactive black K-BR, reactive brilliant red X-3B, reactive brilliant red K-2BP, reactive brilliant red K-2G, reactive orange K-GN, reactive brilliant orange X-GN, direct orange S, direct bright red 4BE, direct pink, direct purplish red B, direct green B, direct dark brown M, direct dark brown MM, direct red brown RN, direct black 19, direct fast black G, direct yellow brown 3G, direct frozen yellow G, direct acid fast red 4BS, direct copper blue 2R, direct lake blue 6B, direct yellow R, direct blue 86, direct gray D, direct fast turquoise blue GL, direct fast light yellow 5GL, acid red, acid orange II, acid yellow G, acid anthraquinone blue G, direct bright blue X-BR, reactive brilliant red X-3G, direct brilliant red blue B, direct dark brown MM, direct dark brown M, direct dark brown G, direct yellow 3G, direct yellow 5GL direct yellow, acid fast light blue X-fast yellow, yellow G, yellow X-blue G, yellow blue G, yellow blue X-blue, yellow blue B, yellow blue B, yellow blue B, yellow blue, yellow blue B, yellow blue, yellow B, yellow blue yellow B, yellow blue, yellow blue B, yellow blue B yellow blue, yellow B, yellow B, yellow blue, yellow blue, yellow B, yellow B, yellow B, yellow B, yellow, Acid mordant pink 3BM, acid mordant blue B, disperse red 3B, disperse orange 30, disperse yellow G, disperse yellow RGFL, disperse blue B, and disperse violet.
Preferably, in step S2, the organic solvent is one of toluene and acetonitrile.
Preferably, in step S2, the cross-linking agent is one of ethylene glycol dimethacrylate, N' -methylenebisacrylamide and trimethylolpropane trimethacrylate.
Preferably, in step S2, the initiator is one of azobisisobutyronitrile and azobisisoheptonitrile.
Preferably, in step S2, the bath ratio of the real silk fabric in the reaction solution is 1: 30-50.
The invention also provides the silk fabric with high color fastness, which is obtained by the printing and dyeing process.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, a molecular imprinting technology is utilized, a dye is used as a template molecule, a monomer-template complex is formed by covalent coupling or non-covalent coupling between the template molecule and a functional monomer, the monomer-template complex is polymerized to form a polymer with a three-dimensional grid structure under the action of a cross-linking agent and an initiator, the dye can be firmly combined in the polymer, and finally the polymer is grafted to the surface of a real silk fabric through dipping treatment, so that the obtained real silk fabric with high color fastness can resist the change of an external environment, and the dyed dye is not easy to elute.
(2) Methyl methacrylate is used as a main functional monomer of the molecularly imprinted polymer, and the synthesized polymer takes the methyl methacrylate as a main component, has high transparency and is beneficial to dye molecule color development.
Detailed Description
For a further understanding of the invention, reference will now be made to the preferred embodiments of the present invention by way of example, and it is to be understood that the description is intended to further illustrate features and advantages of the present invention and is not intended to limit the scope of the claims which follow.
All of the starting materials of the present invention, without particular limitation as to their source, may be purchased commercially or prepared according to conventional methods well known to those skilled in the art.
Example 1
(1) Pretreatment: putting 100g of real silk fabric into 900mL of 35g/L sodium carbonate solution, boiling for 25min, washing with water, drying, and treating with plasma under the following conditions: oxygen is adopted as gas, the treatment power is 200W, the pressure is 55Pa, and the treatment time is 25 min;
(2) preparing a reaction solution: dissolving 5g of reactive brilliant orange K-GN in 1000mL of acetonitrile, adding 3g of methyl methacrylate and 0.3g of methacrylic acid, ultrasonically dissolving, adding 0.8g of ethylene glycol dimethacrylate and 55mg of azobisisobutyronitrile, ultrasonically mixing uniformly, and introducing nitrogen for 10min to obtain a reaction solution;
(3) and (3) under the protection of nitrogen, soaking the real silk fabric obtained by the pretreatment in the step (1) in the reaction liquid obtained in the step (2), reacting for 4 hours at 70 ℃ in a bath ratio of 1:40, washing with water, and drying to obtain the real silk fabric with high color fastness.
Example 2
(1) Pretreatment: putting 100g of real silk fabric into 800mL of 20g/L sodium carbonate solution, boiling for 30min, washing with water, drying, and treating with plasma under the following conditions: adopting nitrogen as gas, treating at 100W under 50Pa for 20 min;
(2) preparing a reaction solution: dissolving 4G of direct suntan G in 1000mL of acetonitrile, adding 1.8G of methyl methacrylate and 0.2G of acrylic acid, ultrasonically dissolving, adding 0.5G of trimethylolpropane trimethacrylate and 50mg of azobisisobutyronitrile, ultrasonically mixing uniformly, and introducing nitrogen for 10min to obtain a reaction solution;
(3) and (3) under the protection of nitrogen, soaking the real silk fabric obtained by the pretreatment in the step (1) in the reaction liquid prepared in the step (2) at a bath ratio of 1:30, reacting for 3 hours at 60 ℃, washing with water, and drying to obtain the real silk fabric with high color fastness.
Example 3
(1) Pretreatment: putting 100g of real silk fabric into 1000mL of 50g/L sodium carbonate solution, boiling for 20min, washing with water, drying, and treating with plasma under the following conditions: oxygen is adopted as gas, the treatment power is 300W, the pressure is 60Pa, and the treatment time is 30 min;
(2) preparing a reaction solution: dissolving 8g of acid orange II in 1000mL of toluene, adding 3.6g of methyl methacrylate and 0.4g of acrylamide, carrying out ultrasonic dissolution, adding 1.0g N, N' -methylene diacrylamide and 70mg of azobisisoheptonitrile, carrying out ultrasonic mixing, and introducing nitrogen for 10min to obtain a reaction solution;
(3) and (3) under the protection of nitrogen, soaking the real silk fabric obtained by the pretreatment in the step (1) in the reaction liquid obtained in the step (2) at a bath ratio of 1:50, reacting for 5 hours at 80 ℃, washing with water, and drying to obtain the real silk fabric with high color fastness.
Example 4
(1) Pretreatment: putting 100g of real silk fabric into 800mL of 40g/L sodium carbonate solution, boiling for 30min, washing with water, drying, and treating with plasma under the following conditions: oxygen is adopted as gas, the treatment power is 100W, the pressure is 60Pa, and the treatment time is 20 min;
(2) preparing a reaction solution: dissolving 6g of disperse violet in 1000mL of toluene, adding 2.8g of methyl methacrylate and 0.3g of acrylic acid, ultrasonically dissolving, adding 0.8g of trimethylolpropane trimethacrylate and 60mg of azobisisoheptonitrile, ultrasonically mixing uniformly, and introducing nitrogen for 10min to obtain a reaction solution;
(3) and (3) under the protection of nitrogen, soaking the real silk fabric obtained by the pretreatment in the step (1) in the reaction liquid obtained in the step (2), reacting for 4 hours at 70 ℃ in a bath ratio of 1:40, washing with water, and drying to obtain the real silk fabric with high color fastness.
Comparative example 1 (without initiator)
(1) Pretreatment: putting 100g of real silk fabric into 900mL of 35g/L sodium carbonate solution, boiling for 25min, washing with water, drying, and treating with plasma under the following conditions: oxygen is adopted as gas, the treatment power is 200W, the pressure is 55Pa, and the treatment time is 25 min;
(2) preparing a reaction solution: dissolving 5g of reactive brilliant orange K-GN in 1000mL of acetonitrile, adding 3g of methyl methacrylate and 0.3g of methacrylic acid, ultrasonically dissolving, adding 0.8g of ethylene glycol dimethacrylate, ultrasonically mixing uniformly, and introducing nitrogen for 10min to obtain a reaction solution;
(3) and (3) under the protection of nitrogen, soaking the real silk fabric obtained by the pretreatment in the step (1) into the reaction liquid obtained in the step (2), reacting for 4 hours at 70 ℃ with a bath ratio of 1:40, washing with water, and drying to obtain the real silk fabric with high color fastness.
Comparative example 2 (without addition of functional monomer)
(1) Pretreatment: putting 100g of real silk fabric into 900mL of 35g/L sodium carbonate solution, boiling for 25min, washing with water, drying, and treating with plasma under the following conditions: oxygen is adopted as gas, the treatment power is 200W, the pressure is 55Pa, and the treatment time is 25 min;
(2) preparing a reaction solution: dissolving 5g of reactive brilliant orange K-GN in 1000mL of acetonitrile, adding 0.8g of ethylene glycol dimethacrylate and 55mg of azobisisobutyronitrile, ultrasonically mixing uniformly, and introducing nitrogen for 10min to obtain a reaction solution;
(3) and (3) under the protection of nitrogen, soaking the real silk fabric obtained by the pretreatment in the step (1) in the reaction liquid obtained in the step (2), reacting for 4 hours at 70 ℃ in a bath ratio of 1:40, washing with water, and drying to obtain the real silk fabric with high color fastness.
Color fastness test
According to the color fastness to washing of the textile color fastness test of GB/T3921 and 2008, the color fastness to artificial light of the textile color fastness test of GB/T8427 and 2008: the fastness to washing, light and rubbing of the real silk fabrics obtained in examples 1-4 and comparative examples 1-2 are tested by xenon arc lamps and GB/T3920-2008 textile color fastness test fastness to rubbing, and the results are shown in Table 1.
Color fastness to washing: the tested instrument is an SW8A model washable color fastness tester; the sample size is 20cm × 20cm, the soaping temperature is 40 + -3 deg.C, the bath ratio is 1:20, and the time is 10 min.
Color fastness to light: the testing instrument is YG (B)611-III type solarization climate tester; the sun light wavelength is 340nm, and the sun light treatment is carried out for 48 h.
Color fastness to rubbing: the tested instrument is a Y571W type textile rubbing color fastness instrument; the size of the sample is 20mm × 100mm, the rubbing time is 10s, the number of rubbing times is 10 times, and the reciprocating stroke is 50 mm.
TABLE 1 color fastness of the samples
Sample (I)
|
Color fastness to washing
|
Colour fastness to light
|
Color fastness to wet rubbing
|
Colour fastness to dry rubbing
|
Example 1
|
4~5
|
5
|
4
|
4~5
|
Example 2
|
4
|
4~5
|
4
|
4
|
Example 3
|
4
|
4~5
|
3~4
|
4
|
Example 4
|
3~4
|
4
|
4
|
3~4
|
Comparative example 1
|
2~3
|
2~3
|
2
|
1~2
|
Comparative example 2
|
1
|
2
|
2~3
|
1~2 |
From the data in table 1, it can be seen that: the real silk fabric prepared by the method has good color fastness, washing resistance, sun resistance and friction resistance, the color fastness reaches the regulation of mandatory national standard GB18401-2003 national textile product basic safety technical standard, and the color fastness of the real silk fabric prepared by the comparative example is poor, which indicates that the dye is not firmly combined with the fabric and is easy to elute. The comparative examples and comparative examples show that the dye can be firmly bonded on the fabric by the molecular imprinting technology.
The invention provides a thought and a method of a printing and dyeing process of a silk fabric with high color fastness, and a plurality of methods and ways for realizing the technical scheme are provided, the above description is only a preferred embodiment of the invention, and it should be noted that, for a person skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the invention, and the improvements and decorations should also be regarded as the protection scope of the invention. All the components not specified in the present embodiment can be realized by the prior art.