CN115679717B - Dyeing process of polyester knitted fabric - Google Patents
Dyeing process of polyester knitted fabric Download PDFInfo
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- CN115679717B CN115679717B CN202211436290.5A CN202211436290A CN115679717B CN 115679717 B CN115679717 B CN 115679717B CN 202211436290 A CN202211436290 A CN 202211436290A CN 115679717 B CN115679717 B CN 115679717B
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- 239000004744 fabric Substances 0.000 title claims abstract description 112
- 238000004043 dyeing Methods 0.000 title claims abstract description 86
- 229920000728 polyester Polymers 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000000975 dye Substances 0.000 claims abstract description 52
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims abstract description 26
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 23
- 239000011734 sodium Substances 0.000 claims abstract description 23
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 22
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 22
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 claims abstract description 22
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 22
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 21
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 21
- KDYFGRWQOYBRFD-UHFFFAOYSA-L succinate(2-) Chemical compound [O-]C(=O)CCC([O-])=O KDYFGRWQOYBRFD-UHFFFAOYSA-L 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 17
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 10
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000986 disperse dye Substances 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 6
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 claims description 16
- YODZTKMDCQEPHD-UHFFFAOYSA-N thiodiglycol Chemical compound OCCSCCO YODZTKMDCQEPHD-UHFFFAOYSA-N 0.000 claims description 8
- 229920001577 copolymer Polymers 0.000 claims description 5
- YZCKVEUIGOORGS-IGMARMGPSA-N Protium Chemical compound [1H] YZCKVEUIGOORGS-IGMARMGPSA-N 0.000 claims description 4
- 239000000835 fiber Substances 0.000 abstract description 44
- 229920004934 Dacron® Polymers 0.000 abstract description 14
- 239000005020 polyethylene terephthalate Substances 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 6
- 230000000052 comparative effect Effects 0.000 description 15
- 238000005406 washing Methods 0.000 description 13
- 238000002474 experimental method Methods 0.000 description 6
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 238000002835 absorbance Methods 0.000 description 3
- 238000003795 desorption Methods 0.000 description 3
- 229940074404 sodium succinate Drugs 0.000 description 3
- -1 sodium succinate alkyl sulfonate Chemical class 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 229940051841 polyoxyethylene ether Drugs 0.000 description 2
- 229920000056 polyoxyethylene ether Polymers 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000001007 puffing effect Effects 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 1
- 125000005907 alkyl ester group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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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- Coloring (AREA)
Abstract
The application relates to the field of dyeing processes, and particularly discloses a dyeing process of a dacron knitted fabric, which comprises the following steps of: s1: pretreatment: performing alkaline treatment on the grey cloth in pretreatment liquid; s2: preparing a dyeing solution: respectively adding water, an auxiliary agent, a leveling agent, disperse dye, hydroxyethyl methacrylate, sodium alkyl succinate sulfonate, N-methylolacrylamide, hydrogen peroxide and sodium carbonate into a dye vat, and uniformly stirring to obtain a dyeing solution; s3: dyeing: putting the grey cloth into a dye vat, padding the grey cloth with a dyeing solution, taking out the grey cloth, and drying the grey cloth to obtain dyed cloth; s4: fixation: immersing the dyed cloth into an aldehyde-free color fixing agent for treatment, and dehydrating to obtain the dacron knitted fabric. The application has the effects of enabling dye to enter into gaps in the fibers more easily, improving the dyeing rate of the polyester knitted fabric, reducing the friction coefficient between fibers and enabling the polyester knitted fabric not to be easy to generate the phenomenon of yarn hooking.
Description
Technical Field
The application relates to the field of dyeing processes, in particular to a dyeing process of a dacron knitted fabric.
Background
Dyeing is roughly divided into three basic stages, the first stage: adsorption, the process of diffusion transfer of dye from solution to the surface of the fiber gradually after the fiber is put into the dye bath, is called adsorption. Over time, the dye concentration on the fiber gradually increases, while the dye concentration in the solution gradually decreases, after a period of time, reaching an equilibrium state. The reverse process of adsorption is desorption, and adsorption and desorption are simultaneously carried out in the dyeing process. And a second stage: the dye adsorbed on the surface of the fiber diffuses into the fiber until the concentration of the dye tends to be uniform in each part of the fiber. The dye concentration adsorbed on the surface of the fiber is higher than that in the fiber, so that the dye is promoted to diffuse from the surface of the fiber to the inside of the fiber. At this point, the diffusion of the dye breaks the adsorption equilibrium initially established, and the dye in solution is continually adsorbed onto the fiber surface, again reaching equilibrium. And a third stage: fixation is the process of combining the dye with the fiber, and the combination mode is different according to the different dye and fiber.
However, the polyester has the characteristics of strong hydrophobicity, high crystallization and alignment degree, small fiber micro-gaps, difficult wetting and puffing and the like, so that dye is difficult to enter into gaps in the polyester, and the dyeing property of the polyester is poor. Thus, there is still room for improvement.
Disclosure of Invention
In order to enable dye to enter gaps in the fibers more easily, improve the dyeing rate of dyeing the polyester knitted fabric, reduce the friction coefficient between the fibers and enable the polyester knitted fabric not to be easy to catch filaments, the application provides a dyeing process of the polyester knitted fabric.
The application provides a dyeing process of a polyester knitted fabric, which adopts the following technical scheme:
the dyeing process of the polyester knitted fabric comprises the following steps of:
S1: pretreatment: alkaline treatment is carried out on the grey cloth in pretreatment liquid, so that oil stains on the surface of the grey cloth are removed;
s2: preparing a dyeing solution: adding 1-2g/L of water and an auxiliary agent, 0.8-1.2g/L of a leveling agent, 0.5-0.8g/L of a disperse dye, 0.2-0.3g/L of hydroxyethyl methacrylate, 0.1-0.15g/L, N-0.3 g/L of sodium alkyl succinate sulfonate, 2-3g/L of hydrogen peroxide and 1-2g/L of sodium carbonate into a dye vat respectively, and uniformly stirring to obtain a dyeing solution;
s3: dyeing: putting the grey cloth into a dye vat, padding the grey cloth with a dyeing solution, taking out the grey cloth, and drying the grey cloth to obtain dyed cloth;
S4: fixation: immersing the dyed cloth into an aldehyde-free color fixing agent for treatment, and dehydrating to obtain the dacron knitted fabric.
Through adopting above-mentioned technical scheme, succinic acid alkyl ester sodium sulfonate can make the clearance between the polyester fiber struts, make the dyestuff can get into more easily in the inside space of polyester fiber to, hydroxyl group in the hydroxyethyl methacrylate forms intermolecular hydrogen bond with the alcoholic hydroxyl in the polyester molecule, simultaneously, hydroxyl in the dyestuff molecule, amino also can combine with the hydroxyl in the hydroxyethyl methacrylate for the effort between dyestuff molecule and the polyester molecule is strengthened, and then makes the washing fastness improve, with this phenomenon that makes the polyester knitted fabric be difficult to appear fading.
However, when sodium alkyl succinate sulfonate and hydroxyethyl methacrylate are added simultaneously, the structure among polyester fibers is easy to loosen, the alignment degree among fiber molecules is reduced, and the phenomenon of yarn hooking of the polyester knitted fabric is easy to occur. Through continuous research, research and development personnel find that adding N-methylolacrylamide, sodium alkyl succinate sulfonate and hydroxyethyl methacrylate into a dyeing solution can promote the interaction between amino groups in the N-methylolacrylamide and hydroxyl groups on the surface of polyester fibers, so that the friction coefficient between the fibers is reduced, the surface of the polyester knitted fabric is flattened, the polyester knitted fabric has better soft and smooth effects, and the phenomenon of yarn hooking of the polyester knitted fabric is not easy to occur.
Therefore, the sodium alkyl succinate sulfonate, the hydroxyethyl methacrylate and the N-methylol acrylamide are simultaneously added into the dyeing solution to be matched with each other, so that the dye is promoted to enter into gaps in the fiber rapidly, the dyeing rate of the polyester knitted fabric is improved, the dyeing time is shortened, the friction coefficient between the fibers is reduced, the phenomenon of yarn hooking of the polyester knitted fabric is not easy to occur, in addition, the problem that the polyester knitted fabric is easy to hook in the dyeing process is solved, and the quality of the polyester knitted fabric is improved.
Preferably, the volume ratio of the sodium alkyl succinate sulfonate to the hydroxyethyl methacrylate to the N-methylolacrylamide is 2:1: (1-2).
By adopting the technical scheme, the sodium alkyl succinate sulfonate, the hydroxyethyl methacrylate and the N-methylolacrylamide which are in a specific proportion are matched with each other, so that the dye is further promoted to enter into gaps inside the polyester fibers, the dyeing rate of the polyester knitted fabric is improved, and the friction coefficient between polyester fiber molecules is further reduced, so that the polyester knitted fabric is less prone to yarn hooking.
Preferably, the dyeing bath ratio in S3 is 1: (9-10).
By adopting the technical scheme, the specific dyeing bath ratio is adopted, so that the permeation effect of the dyeing solution is improved, the dyeing of the polyester knitted fabric is more uniform, and the phenomenon of uneven depth of the polyester knitted fabric in the dyeing process is avoided.
Preferably, the auxiliary agent comprises one or more of ethylene glycol, diethylene glycol, formamide and thiodiethanol.
Preferably, the auxiliary agent is prepared from formamide and thiodiethanol in a volume ratio of 1: 2.
By adopting the technical scheme, the formamide and the thiodiethanol which are matched with each other in a specific proportion are adopted, so that the disperse dye is easier to dissolve in a dyeing solution system, and further the dye can quickly enter into gaps inside polyester fibers, thereby improving the dye uptake of dyeing the polyester knitted fabric; and the acting force between dye molecules and polyester molecules is enhanced, so that the washing fastness of the polyester knitted fabric is enhanced.
Preferably, the levelling agent is a (meth) acrylamide-N-vinylamide copolymer.
By adopting the technical scheme, the dyeing uniformity is improved, and defects such as color bars, color spots and the like are not easy to generate in the polyester knitted fabric.
Preferably, the pretreatment liquid comprises 1-3g/L of hydrogen peroxide and 1-2g/L of sodium carbonate.
By adopting the technical scheme, dust and oil stains on grey cloth can be removed better, so that dye can enter the polyester fiber better, and the dyeing rate of dyeing the polyester knitted fabric can be improved.
Preferably, the stirring temperature in the step S2 is 60-70 ℃, the stirring time is 5-8h, and the stirring speed is 300-380r/min.
Through adopting above-mentioned technical scheme for the clearance between the polyester fiber is in an optimal state, and then makes the dyestuff get into the inside space of polyester fiber and be difficult to appear desorption phenomenon, with this the rate of coloring that makes the dyestuff obtain promoting, and, accelerate dyeing rate, be convenient for shorten dyeing time.
In summary, the present application includes at least one of the following beneficial technical effects:
1. Through simultaneously adding sodium alkyl succinate sulfonate, hydroxyethyl methacrylate and N-methylolacrylamide into the dyeing solution, the dye is facilitated to enter into gaps inside the fibers rapidly, the dyeing rate of the polyester knitted fabric is improved, the dyeing time is shortened, the friction coefficient between the fibers is reduced, the phenomenon of yarn hooking is not easy to occur to the polyester knitted fabric, in addition, the problem that the yarn hooking is easy to occur to the polyester knitted fabric in the dyeing process is solved, and the quality of the polyester knitted fabric is improved.
2. By adopting the specific dyeing bath ratio, the permeation effect of the dyeing solution is improved, so that the dyeing of the polyester knitted fabric is more uniform, and the phenomenon of uneven depth of the polyester knitted fabric is not easy to occur in the dyeing process.
3. The formamide and the thiodiethanol with specific proportions are matched with each other, so that the disperse dye is easier to dissolve in a dyeing solution system, and the dye can quickly enter gaps inside polyester fibers, thereby improving the dyeing rate of the polyester knitted fabric; and the acting force between dye molecules and polyester molecules is enhanced, so that the washing fastness of the polyester knitted fabric is enhanced.
Detailed Description
The present application will be described in further detail with reference to examples.
Example 1
The embodiment discloses a dyeing process of a polyester knitted fabric, which comprises the following steps:
S1: pretreatment: alkaline treatment is carried out on the grey cloth in pretreatment liquid to remove oil stains on the surface of the grey cloth, wherein the pretreatment liquid comprises 1g/L hydrogen peroxide and 1g/L sodium carbonate;
S2: preparing a dyeing solution: adding 1g/L of water, 0.8g/L of leveling agent, 0.5g/L of disperse dye, 0.2g/L of hydroxyethyl methacrylate, 0.1g/L, N g/L of sodium succinate alkyl sulfonate, 0.3g/L of methylolacrylamide, 2g/L of hydrogen peroxide and 1g/L of calcined soda into a dye vat respectively, stirring at 60 ℃ for 5 hours at a stirring rate of 300r/min to obtain a dyeing solution;
Wherein the auxiliary agent is prepared from formamide and thiodiethanol in a volume ratio of 1:2, composing; the leveling agent is (methyl) acrylamide-N-vinyl amide copolymer;
S3: dyeing: putting grey cloth into a dye vat, padding dyeing solution, taking out, and drying to obtain dyed cloth, wherein the dyeing bath ratio is 1:9, a step of performing the process;
S4: fixation: immersing the dyed cloth into an aldehyde-free color fixing agent for treatment, and dehydrating to obtain the dacron knitted fabric.
Example 2
The difference from example 1 is that:
the dyeing process of the polyester knitted fabric comprises the following steps of:
s1: pretreatment: alkaline treatment is carried out on the grey cloth in pretreatment liquid to remove oil stains on the surface of the grey cloth, wherein the pretreatment liquid comprises 3g/L hydrogen peroxide and 2g/L sodium carbonate;
S2: preparing a dyeing solution: adding 2g/L of water, 1.2g/L of leveling agent, 0.8g/L of disperse dye, 0.3g/L of hydroxyethyl methacrylate, 0.15g/L, N g/L of sodium succinate alkyl sulfonate, 0.1g/L of methylolacrylamide, 3g/L of hydrogen peroxide and 2g/L of sodium carbonate into a dye vat respectively, stirring at 70 ℃ for 8 hours at 380r/min to obtain a dyeing solution;
Wherein the auxiliary agent is prepared from formamide and thiodiethanol in a volume ratio of 1:2, composing; the leveling agent is (methyl) acrylamide-N-vinyl amide copolymer;
S3: dyeing: putting grey cloth into a dye vat, padding dyeing solution, taking out, and drying to obtain dyed cloth, wherein the dyeing bath ratio is 1:10;
S4: fixation: immersing the dyed cloth into an aldehyde-free color fixing agent for treatment, and dehydrating to obtain the dacron knitted fabric.
Example 3
The difference from example 1 is that:
the dyeing process of the polyester knitted fabric comprises the following steps of:
s1: pretreatment: alkaline treatment is carried out on the grey cloth in pretreatment liquid to remove oil stains on the surface of the grey cloth, wherein the pretreatment liquid comprises 2g/L hydrogen peroxide and 1.5g/L sodium carbonate;
S2: preparing a dyeing solution: adding 1.5g/L of water and an auxiliary agent, 1.0g/L of a leveling agent, 0.6g/L of a disperse dye, 0.25g/L of hydroxyethyl methacrylate, 0.12g/L, N g/L of sodium succinate alkyl sulfonate, 0.2g/L of hydroxymethyl acrylamide, 2.5g/L of hydrogen peroxide and 1.5g/L of sodium carbonate into a dye vat respectively, stirring at 65 ℃ for 7h at a stirring rate of 350r/min to obtain a dyeing solution;
Wherein the auxiliary agent is prepared from formamide and thiodiethanol in a volume ratio of 1:2, composing; the leveling agent is (methyl) acrylamide-N-vinyl amide copolymer;
S3: dyeing: putting grey cloth into a dye vat, padding dyeing solution, taking out, and drying to obtain dyed cloth, wherein the dyeing bath ratio is 1:10;
S4: fixation: immersing the dyed cloth into an aldehyde-free color fixing agent for treatment, and dehydrating to obtain the dacron knitted fabric.
Example 4
The difference from example 3 is that: sodium alkyl succinate sulfonate, hydroxyethyl methacrylate and N-methylolacrylamide in a volume ratio of 2:1:1.
Example 5
The difference from example 3 is that: sodium alkyl succinate sulfonate, hydroxyethyl methacrylate and N-methylolacrylamide in a volume ratio of 2:1:2.
Example 6
The difference from example 3 is that: the volume ratio of the sodium alkyl succinate sulfonate to the hydroxyethyl methacrylate to the N-methylolacrylamide is 1:1:1.
Comparative example 1
The difference from example 3 is that: the hydroxyethyl methacrylate was replaced with an equal amount of water.
Comparative example 2
The difference from example 3 is that: the sodium alkyl succinate sulfonate was replaced with an equal amount of water.
Comparative example 3
The difference from example 3 is that: the N-methylolacrylamide is replaced by an equal amount of water.
Comparative example 4
The difference from example 3 is that: the sodium alkyl succinate sulfonate is replaced by the equivalent fatty alcohol polyoxyethylene ether.
Comparative example 5
The difference from example 3 is that: the dacron knitted fabric was purchased from the company of Dali trade, inc. in Changle district, fuzhou.
Experiment 1 washing fastness
The test refers to GB/T3921-2008 "fastness to washing for textile color fastness test", and the fastness to washing after 20 times of continuous washing of the dacron knitted fabrics in the above examples and comparative examples are respectively detected.
Experiment 2 dye uptake
The absorbance of the front and rear dyeing solutions in the above examples and comparative examples was measured using a 722-type spectrophotometer, wherein the absorbance before dyeing (liquid) was a 0 and the absorbance after dyeing (residual liquid) was a 1, and the dye uptake was calculated as = (1-a 1/A0) ×100%.
Experiment 3 unevenness of dyeing
The K/S values of the dacron knitted fabrics in the above examples and comparative examples were tested respectively on an UltraScan-XE type computer color measuring and matching instrument using a D65 light source and a 10 DEG viewing angle, and the relative deviation of the average value of the K/S values was calculated 15 times at different positions of the dacron knitted fabrics, indicating the unevenness (U) of dyeing of the dacron knitted fabrics. The smaller the value of the unevenness of the dyeing, the more uniform the dyeing.
Experiment 4 pilling count
The dacron knitted fabrics in the above examples and comparative examples were rubbed 100 times, respectively, and then the number of dacron knitted fabrics pilling after rubbing 100 times was calculated.
Experiment 5 softness
And (3) placing the polyester knitted fabric in a constant temperature and constant humidity environment with the temperature of 25 ℃ and the relative humidity of 55% for 3 days, then cutting 6 round samples with the diameter of 12cm from the selvedge at the position 5cm away from the selvedge, performing a French treasure instrument test, and recording the softness of the polyester knitted fabric, wherein the softness value is the softness of the polyester knitted fabric.
The results of experiments 1-5 are shown in Table 1.
TABLE 1
The data according to comparative examples 1 to 3 in Table 1 are respectively compared with example 3, and hydroxyethyl methacrylate is not added in comparative example 1, and the wash fastness of the polyester knitted fabric is lower than that of example 3 because the forces between the dye molecules and the polyester molecules are reduced, so that the wash fastness of the polyester knitted fabric is reduced. The washing fastness of the polyester knitted fabric is lower than that of the example 3 because the polyester has the characteristics of strong hydrophobicity, high crystallization and alignment degree, small fiber micro-gaps, difficult wetting and puffing and the like, so that the dye is difficult to enter into gaps in the polyester, and the washing fastness of the polyester knitted fabric is reduced. In comparative example 3, no N-methylolacrylamide was added, and the number of pilling of the polyester knitted fabric was much larger than that of example 3, because the structure between the polyester fibers was easily loosened when sodium alkyl succinate sulfonate and hydroxyethyl methacrylate were simultaneously added, resulting in a decrease in the degree of alignment between the fibers, and thus the phenomenon of yarn hooking was easily occurred in the polyester knitted fabric.
However, in the embodiment 3, sodium alkyl succinate sulfonate, hydroxyethyl methacrylate and N-methylol acrylamide are added at the same time, which is favorable for promoting the dye to enter into the gaps inside the fibers rapidly, improving the dyeing rate and the washing fastness of the polyester knitted fabric dyeing, reducing the friction coefficient between the fibers and ensuring that the polyester knitted fabric is not easy to get hooked.
According to the comparison of the data of the comparative example 4 and the data of the example 3 in the table 1, the comparative example 4 uses the same amount of fatty alcohol polyoxyethylene ether to replace sodium alkyl succinate sulfonate, the dye uptake of the polyester knitted fabric is lower than that of the example 3, which indicates that any substances are not matched with hydroxyethyl methacrylate and N-methylolacrylamide, the gaps between the polyester fibers can be in an optimal state, and only the sodium alkyl succinate sulfonate, the hydroxyethyl methacrylate and the N-methylolacrylamide are matched with each other, the dye is unlikely to be desorbed in the gaps inside the polyester fibers, so that the dye uptake is improved, and the dyeing time is convenient to shorten.
According to the comparison of the data of comparative example 5 and example 3 in Table 1, the washing fastness and the dye-uptake of the commercial polyester knitted fabric are not as good as those of examples 1-3, which shows that the polyester knitted fabric prepared by the application has more excellent performance than the existing polyester knitted fabric.
The data of examples 4 to 6 in Table 1 are respectively compared with those of example 3, and the sodium alkyl succinate sulfonate, the hydroxyethyl methacrylate and the N-methylolacrylamide in examples 4 to 5 are matched with each other by adopting a specific proportion, so that the dye can be further promoted to enter into gaps in the polyester fiber, the dyeing rate of the polyester knitted fabric is improved, and the friction coefficient between polyester fiber molecules is further reduced, so that the polyester knitted fabric is less prone to yarn hooking.
However, the proportions of sodium alkyl succinate sulfonate, hydroxyethyl methacrylate and N-methylolacrylamide in example 6 are not within the scope of the application, and the color fastness to washing and the dye uptake of the polyester knitted fabric are not as good as those of the polyester knitted fabric in example 3, which means that the proportions of sodium alkyl succinate sulfonate, hydroxyethyl methacrylate and N-methylolacrylamide are only within the scope of the application, but have the effect of simultaneously improving the dye uptake and the color fastness to washing of the polyester knitted fabric.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (1)
1. A dyeing process of a polyester knitted fabric is characterized in that: the method comprises the following steps:
S1: pretreatment: alkaline treatment is carried out on the grey cloth in pretreatment liquid, so that oil stains on the surface of the grey cloth are removed;
s2: preparing a dyeing solution: adding 1-2g/L of water and an auxiliary agent, 0.8-1.2g/L of a leveling agent, 0.5-0.8g/L of a disperse dye, 0.2-0.3g/L of hydroxyethyl methacrylate, 0.1-0.15g/L, N-0.3 g/L of sodium alkyl succinate sulfonate, 2-3g/L of hydrogen peroxide and 1-2g/L of sodium carbonate into a dye vat respectively, and uniformly stirring to obtain a dyeing solution;
s3: dyeing: putting the grey cloth into a dye vat, padding the grey cloth with a dyeing solution, taking out the grey cloth, and drying the grey cloth to obtain dyed cloth;
S4: fixation: immersing the dyed cloth into an aldehyde-free color fixing agent for treatment, and dehydrating to obtain a polyester knitted fabric;
The volume ratio of the sodium alkyl succinate sulfonate to the hydroxyethyl methacrylate to the N-methylol acrylamide is 2:1: (1-2);
The dyeing bath ratio in the S3 is 1: (9-10);
The auxiliary agent is prepared from formamide and thiodiethanol in a volume ratio of 1:2, composing;
the leveling agent is a (methyl) acrylamide-N-vinylamide copolymer;
the pretreatment liquid comprises 1-3g/L of hydrogen peroxide and 1-2g/L of sodium carbonate;
The stirring temperature in the step S2 is 60-70 ℃, the stirring time is 5-8h, and the stirring speed is 300-380r/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211436290.5A CN115679717B (en) | 2022-11-16 | 2022-11-16 | Dyeing process of polyester knitted fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211436290.5A CN115679717B (en) | 2022-11-16 | 2022-11-16 | Dyeing process of polyester knitted fabric |
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| Publication Number | Publication Date |
|---|---|
| CN115679717A CN115679717A (en) | 2023-02-03 |
| CN115679717B true CN115679717B (en) | 2024-05-14 |
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| CN202211436290.5A Active CN115679717B (en) | 2022-11-16 | 2022-11-16 | Dyeing process of polyester knitted fabric |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5378755A (en) * | 1993-08-27 | 1995-01-03 | Reichhold Chemicals, Inc. | Binding agent |
| CN102535194A (en) * | 2012-02-24 | 2012-07-04 | 台州东海塑料品制造有限公司 | Method of dyeing fabric by using dye |
| CN105672002A (en) * | 2016-04-19 | 2016-06-15 | 苏州大学 | Method for achieving continuous pad-dry-cure dyeing of polyester |
| CN106498774A (en) * | 2016-11-29 | 2017-03-15 | 潍坊百禾工艺品有限公司 | A kind of dyeing assistant and preparation method thereof |
| CN108894029A (en) * | 2018-06-21 | 2018-11-27 | 湖州知维技术服务有限公司 | A kind of cloth coloring agent |
| CN109354688A (en) * | 2018-09-05 | 2019-02-19 | 江苏广成化工有限公司 | Environment-friendly water-based block copolymer dispersant and preparation method thereof |
| CN112301759A (en) * | 2020-11-04 | 2021-02-02 | 郎溪远华纺织有限公司 | Dyeing process of Teflon polyester fabric |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012135622A1 (en) * | 2011-03-31 | 2012-10-04 | Celanese International Corporation | Disperse dyeing of textile fibers |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5378755A (en) * | 1993-08-27 | 1995-01-03 | Reichhold Chemicals, Inc. | Binding agent |
| CN102535194A (en) * | 2012-02-24 | 2012-07-04 | 台州东海塑料品制造有限公司 | Method of dyeing fabric by using dye |
| CN105672002A (en) * | 2016-04-19 | 2016-06-15 | 苏州大学 | Method for achieving continuous pad-dry-cure dyeing of polyester |
| CN106498774A (en) * | 2016-11-29 | 2017-03-15 | 潍坊百禾工艺品有限公司 | A kind of dyeing assistant and preparation method thereof |
| CN108894029A (en) * | 2018-06-21 | 2018-11-27 | 湖州知维技术服务有限公司 | A kind of cloth coloring agent |
| CN109354688A (en) * | 2018-09-05 | 2019-02-19 | 江苏广成化工有限公司 | Environment-friendly water-based block copolymer dispersant and preparation method thereof |
| CN112301759A (en) * | 2020-11-04 | 2021-02-02 | 郎溪远华纺织有限公司 | Dyeing process of Teflon polyester fabric |
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