CN113668262A - Production process of anti-aging jean fabric - Google Patents
Production process of anti-aging jean fabric Download PDFInfo
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- CN113668262A CN113668262A CN202110882170.7A CN202110882170A CN113668262A CN 113668262 A CN113668262 A CN 113668262A CN 202110882170 A CN202110882170 A CN 202110882170A CN 113668262 A CN113668262 A CN 113668262A
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- 239000004744 fabric Substances 0.000 title claims abstract description 51
- 230000003712 anti-aging effect Effects 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000004043 dyeing Methods 0.000 claims abstract description 80
- 239000003513 alkali Substances 0.000 claims abstract description 71
- PGYZAKRTYUHXRA-UHFFFAOYSA-N 2,10-dinitro-12h-[1,4]benzothiazino[3,2-b]phenothiazin-3-one Chemical compound S1C2=CC(=O)C([N+]([O-])=O)=CC2=NC2=C1C=C1SC3=CC=C([N+](=O)[O-])C=C3NC1=C2 PGYZAKRTYUHXRA-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000003795 chemical substances by application Substances 0.000 claims description 24
- 230000000149 penetrating effect Effects 0.000 claims description 24
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- -1 alkyl alcohol sulfate, sodium salt Chemical class 0.000 claims description 14
- 239000003638 chemical reducing agent Substances 0.000 claims description 12
- RYYXDZDBXNUPOG-UHFFFAOYSA-N 4,5,6,7-tetrahydro-1,3-benzothiazole-2,6-diamine;dihydrochloride Chemical compound Cl.Cl.C1C(N)CCC2=C1SC(N)=N2 RYYXDZDBXNUPOG-UHFFFAOYSA-N 0.000 claims description 3
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 3
- 150000001298 alcohols Chemical class 0.000 claims description 3
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 claims description 3
- GUBGYTABKSRVRQ-DCSYEGIMSA-N Beta-Lactose Chemical compound OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)[C@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-DCSYEGIMSA-N 0.000 claims description 2
- RFSUNEUAIZKAJO-VRPWFDPXSA-N D-Fructose Natural products OC[C@H]1OC(O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-VRPWFDPXSA-N 0.000 claims description 2
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 claims description 2
- 125000002467 phosphate group Chemical class [H]OP(=O)(O[H])O[*] 0.000 claims 1
- 159000000000 sodium salts Chemical class 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 39
- 239000000975 dye Substances 0.000 abstract description 37
- 238000000034 method Methods 0.000 abstract description 22
- 230000008569 process Effects 0.000 abstract description 18
- 239000000988 sulfur dye Substances 0.000 abstract description 8
- 230000006872 improvement Effects 0.000 abstract description 4
- 239000004753 textile Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 33
- 230000003679 aging effect Effects 0.000 description 11
- 238000012360 testing method Methods 0.000 description 8
- 229920000742 Cotton Polymers 0.000 description 7
- 238000001035 drying Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 229920002678 cellulose Polymers 0.000 description 5
- 239000001913 cellulose Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000009970 yarn dyeing Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 125000005233 alkylalcohol group Chemical group 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 229910052979 sodium sulfide Inorganic materials 0.000 description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 2
- 125000004434 sulfur atom Chemical group 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 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 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Chemical compound OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 241000872198 Serjania polyphylla Species 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- BJHIKXHVCXFQLS-UYFOZJQFSA-N keto-D-fructose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)C(=O)CO BJHIKXHVCXFQLS-UYFOZJQFSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005517 mercerization Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000005077 polysulfide Substances 0.000 description 1
- 150000008117 polysulfides Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- D06P1/30—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 sulfur dyes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
-
- 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
- D06P3/58—Material containing hydroxyl groups
- D06P3/60—Natural or regenerated cellulose
- D06P3/6025—Natural or regenerated cellulose using vat or sulfur dyes
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Abstract
The application provides a production process of an anti-aging jean fabric, and belongs to the technical field of sulfur dye dyeing of textiles. Putting the yarn to be treated into a dye liquor for dyeing treatment, wherein the alkali concentration in the dye liquor is 50-240g/L, the sulfur black concentration is 80-220g/L, and the dyeing temperature is 70-105 ℃. The method is applied to dyeing treatment of the denim warp, and has the advantages of simple dyeing process, improvement of ageing resistance of the fabric and the like.
Description
Technical Field
The application relates to a production process of an anti-aging jean fabric, and belongs to the technical field of sulfur dye dyeing of textiles.
Background
The black fabric is mostly dyed by sulfur black, however, because of the existence of unstable polysulfide bonds in sulfur dye molecules, sulfur atoms can form sulfuric acid under certain temperature and humidity conditions, and further hydrolysis action can be generated on cellulose fibers in the jean fabric, so that the black fabric becomes brittle, the strength of the fabric is reduced, and the phenomenon is commonly called aging.
In order to solve the problem, people carry out special treatment on sulfur black dye to inhibit sulfur atoms, for example, in the dyeing practice, the brittle damage phenomenon of the fabric in a short time after the fabric is dyed is avoided by adopting the brittle damage prevention processes such as dyeing water washing, drying and the like. But aging damage can be accumulated for a long time, and finally, the fabric can still cause substantial damage, so that the fabric can reach the service life faster than other fabrics.
To combat aging, there is also an improvement in aging resistance: adding a high-alkali mercerizing tank before carrying out sulfur black dyeing on the yarns, and carrying out sulfur black dyeing after washing and drying processes. The strength of the vulcanized black fabric treated by the process after aging is improved. The method has the defects that the dyeing equipment needs to be additionally provided with an additional drying cylinder device, the complexity of the equipment is increased, the drying cost is increased, meanwhile, the yarn winding chance is increased, and the complexity of the dyeing operation is further increased.
Disclosure of Invention
In view of the above, the application provides a production process of an anti-aging jean fabric, which directly adds caustic soda into a dyeing liquid, and integrates high-alkali treatment and dyeing, thereby greatly simplifying equipment, reducing cost and complexity of operation, and obtaining consistent effect.
Specifically, the method is realized through the following scheme:
the production method of the anti-aging denim fabric comprises the step of placing yarns to be treated in a dye solution for dyeing treatment, wherein the alkali concentration in the dye solution is 50-240g/L, the sulfur black concentration in the dye solution is 80-220g/L, and the dyeing temperature is 70-105 ℃.
In the scheme, high-concentration alkali liquor is added into the dye liquor,
on one hand: the high-concentration alkali liquor in the dye liquor reacts with the cotton fibers of the warp yarns, so that the fibers swell to finally form the mercerized cellulose. Based on the mercerization theory, the alkali cellulose on the surface of the yarn subjected to high-alkali treatment has good dye uptake, so that the dye is gathered on the surface of the yarn, and the dye is prevented from permeating into the yarn. Thus, the warp yarns dyed with high alkali have a darker color than conventionally dyed yarns, while some of the fibers inside the yarn are not dyed.
On the other hand: the high-alkali treatment and the dyeing treatment are carried out in one dye vat, alkali liquor and dye with corresponding concentration can be directly added when materials are added, the operation complexity is reduced, the investment of equipment such as a mercerizing tank and a drying drum is reduced, after dyeing is finished, the conventional drying procedure can be directly transferred to be dried, and the complexity and the equipment investment of dyeing post-treatment are reduced.
In conclusion, the high-alkali dyeing process can be applied to any vulcanization dyeing concentration. The dyeing concentration depends on the requirement of the fabric on color depth. When the dye concentration is lower, the damage of aging to the fabric is relatively light, and the application of a high-alkali process has little significance in improving the aging resistance; when the dye concentration is extremely high, the effect of the high-alkali dyeing process is not enough to compensate the aging damage of the fabric, so that the dyeing process with extremely high concentration is avoided in practice. In general, 80-220g/L is a suitable range.
Further, as preferable:
the alkali concentration is 100-200 g/L. In carrying out the dyeing process, we found that: when the alkali concentration is lower than 100g/L, the action between alkali and cellulose is weak, a remarkable mercerizing effect cannot be formed, and the anti-aging level of the fabric is improved to a relatively low degree, such as a level of less than 5%. With the increase of alkali concentration, the mercerizing effect becomes more obvious, and the color yield increase and the ring dyeing effect enhancement are shown. According to the mercerizing theory, when the alkali concentration reaches 250g/L, the mercerizing effect can reach a more ideal degree. However, based on practical experience of yarn dyeing, when the alkali concentration reaches 220g/L, yarn dyeing operation is very difficult, and frequent yarn winding and yarn breaking are not favorable for normal production. Based on this, 100-200g/L is preferred as a more suitable process range, and 150-200g/L is selected as the most preferred process. The degree of improving the anti-aging performance can reach 25 percent.
The alkali is sodium hydroxide aqueous solution.
The dyeing temperature is 90-95 ℃. The influence of the temperature control on the dyeing effect in the dyeing process is more critical, and under the high-alkali environment of the scheme, the dyeing temperature control is more important, and the temperature directly influences the dyeing rate and the dyeing fastness of the dye. The dye activity can be well maintained in the range of 70-105 ℃. However, when the temperature is lower than 90C, the color fastness is deteriorated with the decrease of the temperature, and when the temperature is close to 100C, the dye solution is splashed due to boiling, and the scalding accident of the operating worker occurs. A suitable temperature range is therefore selected between 90 and 95 ℃.
The dye liquor is also added with a reducing agent, and the addition amount of the reducing agent is 0.3g/L-3 g/L. More preferably, the reducing agent is any one of thiourea dioxide, D-glucose, D-fructose and D-lactose, and reduces the sulfur dye to a leuco state so that the leuco state can be dyed on the cotton yarn.
The dyeing liquid is also added with a mercerizing penetrating agent, the mercerizing penetrating agent is a phenol-free mercerizing penetrating agent and contains more than two of alkyl alcohol sulfate sodium salt, alkyl sulfonic acid sodium salt, alcohol ether compounds, phosphate compounds, amino alcohol compounds, amide compounds and alcohol compounds, the addition amount of the mercerizing penetrating agent is 5g/L-20g/L, warp dyeing of the denim fabric is raw yarn dyeing, the hygroscopicity is poor, and caustic soda and the dyeing liquid are difficult to penetrate into yarns. By means of the mercerizing penetrant, alkali liquor and dye liquor can be permeated rapidly, and mercerizing and dyeing of yarns are achieved.
Detailed Description
In the embodiment, the dyeing of the jean fabric is taken as a key technical treatment section, and other processes such as degreasing before dyeing, washing after dyeing, drying and the like are carried out by adopting conventional treatment.
And (4) testing standard:
(1) aging resistance: by adopting an AATCC-26 acceleration method, the aging damage degree, namely the aging resistance of the fabric, is reflected by comparing the strength of the fabric subjected to accelerated aging with the strength before aging.
(2) Color fastness: GB/T3921-2008 is adopted, and the color change condition of the fabric before and after soaping is observed in a soaping mode, so that the washing fastness of the dye is measured
Comparative example: conventional vulcanization dyeing
The conventional sulfur black dyeing process for comparison is as follows:
concentration of sulfur black: 100g/L, the concentration of sodium sulfide is 80g/L, and the concentration of penetrant is 6 g/L.
The dyeing temperature is 90 ℃, and the vehicle speed is 22 m/min.
Example 1: effect of alkali concentration on aging Properties
In the dyeing process of the present example, warp yarns of cotton polyester elastic jean fabric were treated, and the dyeing solution was tested for alkali concentration of 30g/L, 60g/L, 85g/L, 100g/L, 120g/L, 150g/L, 200g/L, and 220g/L at a dyeing temperature of 90 ℃ to confirm the influence of alkali concentration on the dyeing effect, and the results are shown in Table 1.
Table 1: effect of different alkali concentrations on aging Properties
As can be seen from Table 1, the alkali concentration has a substantial influence on both the aging behavior and the color fastness. The effect is, as is evident, both in the aged fracture strength and the aged tear strength.
From table 1, we can see that when the alkali concentration is at a lower level, both the aged breaking strength and the tearing strength are close to the conventional ones, but as the alkali concentration increases, the aged strength increases, which is significantly higher than that of the conventional dyeing. This is because the mercerizing effect of alkali on cotton fibers is insufficient at a lower alkali concentration. The higher the alkali concentration, the more efficient the effect, which is the higher the mercerized cellulose content, so that more dye molecules are bonded to the mercerized cellulose at the surface of the yarn and further the other dye molecules are prevented from entering the yarn interior. The fibers in the yarn are not affected by aging factors of the dye due to the fact that no sulfur dye molecules are attached, and good strength is kept. In other words, the increase in alkali concentration causes the sulfur dye to gather more on the surface of the yarn, and the fibers not affected by the dye inside are increased, so that the strength of the yarn is better.
When the alkali concentration is lower than 100G/L, the aging strength is only improved by about 5 percent compared with the conventional aging strength, but when the alkali concentration reaches 220G/L, the improvement degree can reach 20-25 percent. Particularly, when the alkali concentration is increased to more than 220g/L, the yarn running on the machine frequently winds the machine, so that the dyeing operation is difficult, the yarn breakage on the machine is frequent, and the production is difficult to smoothly carry out.
On the basis of the above example 1, we conducted parallel tests to determine whether there was the same trend in alkali concentration at different concentrations of the sulfur black, specifically the following examples 1-1, 1-2, 1-3, 1-4, and 1-5.
Examples 1 to 1
The test of the alkali concentration of 30g/L, 60g/L, 85g/L, 100g/L, 120g/L, 150g/L, 200g/L and 220g/L at a dyeing temperature of 90 ℃ in the replacement of the sulfur black was carried out in the same manner as in Table 1, i.e., the higher the alkali concentration, the better the effect of improving the aging properties.
Examples 1 to 2
The concentration of the replacement sulfur black was 60g/L, the dyeing temperature was 90 ℃, and the alkali concentrations of 30g/L, 60g/L, 85g/L, 100g/L, 120g/L, 150g/L, 200g/L and 220g/L were respectively tested to have the same tendency as that in Table 1, that is, the higher the alkali concentration is, the better the effect of improving the aging properties is.
Examples 1 to 3
The test of the alkali concentration of 30g/L, 60g/L, 85g/L, 100g/L, 120g/L, 150g/L, 200g/L and 220g/L at a dyeing temperature of 90 ℃ in the case of replacing the sulfur black with a concentration of 120g/L shows the same tendency as that in Table 1, that is, the higher the alkali concentration is, the better the effect of improving the aging properties is.
Examples 1 to 4
The test of the alkali concentration of 30g/L, 60g/L, 85g/L, 100g/L, 120g/L, 150g/L, 200g/L and 220g/L at a dyeing temperature of 85 ℃ and a replacement of the sulfur black concentration of 100g/L shows the same tendency as that in Table 1, that is, the higher the alkali concentration is, the better the effect of improving the aging properties is. But slightly lower in color fastness than at 90 ℃.
Examples 1 to 5
The concentrations of the replacement sulfur black were 100g/L and the dyeing temperature was 95 ℃ and the alkali concentrations of 30g/L, 60g/L, 85g/L, 100g/L, 120g/L, 150g/L, 200g/L and 220g/L were respectively tested to have the same tendency as that in Table 1, that is, the higher the alkali concentration is, the better the effect of improving the aging properties is. But in terms of color fastness, it is slightly improved from that at 90 ℃.
By comparing example 1 with examples 1-1, 1-2, 1-3, 1-4, 1-5, we can find that: in the selected range of the concentration and the temperature of the sulfur black, the influence trend of the alkali concentration on the denim fabric is the same when the treatment object is the same. That is, the higher the alkali concentration, the better the effect of improving aging properties
Example 2: effect of the concentration of Sulfur Black on the dye uptake
In the dyeing process of this example, warp yarns of cotton polyester elastic jean fabric were treated, and the alkali concentration in the dyeing solution was 150g/L, the dyeing temperature was 90 ℃ and the sulfur black concentrations were tested at 40g/L, 60g/L, 80g/L, 100g/L, 120g/L, 150g/L, 200g/L and 250g/L, respectively, and the effect of the sulfur black concentration on the dyeing effect was confirmed, and the results are shown in Table 2.
Table 2: effect of different concentrations of Black sulfide on aging Properties
As can be seen from Table 2, at a certain alkali concentration, the effect of the concentration of the sulfur black on the aging performance is shown in that the aging strength of the fabric is low along with the increase of the dyeing concentration, and when the concentration of the dye reaches 250g/L, the aging strength is lower than that of the conventional (100 g/L sulfur black) process. Meanwhile, in the aspect of dyeing color fastness, when the dye concentration is increased, the color fastness is also reduced.
On the other hand, when the dye concentration is low, such as below 60g/L, the aging strength is high, but the aging strength is enough to meet the performance requirement of the fabric even if the conventional dyeing process is adopted.
And in other aspects, the color fastness of the fabric is influenced by the change of the concentration of the sulfur black. The higher the concentration, the poorer the color fastness.
On the basis of the above example 2, we conducted parallel tests to determine whether the concentrations of sulfur black at different alkali concentrations have the same trend, specifically the following examples 2-1, 2-2, 2-3, and 2-4.
Example 2-1
The alkali concentration was 200g/L and the dyeing temperature was 90 ℃ to test the sulfur black concentrations of 40g/L, 60g/L, 80g/L, 100g/L, 120g/L, 150g/L, 200g/L and 250g/L, respectively, and the effect of the alkali concentration on the aging performance was confirmed, and the same tendency as in Table 2 was obtained, that is, the aging strength of the fabric was low as the dyeing concentration increased.
Examples 2 to 2
The alkali concentration was changed to 120g/L, and the dyeing temperature was 90 ℃ to test the sulfur black concentrations of 40g/L, 60g/L, 80g/L, 100g/L, 120g/L, 150g/L, 200g/L, and 250g/L, respectively, and the effect of the alkali concentration on the aging performance was confirmed, and the same tendency as in Table 2 was obtained, that is, the aging strength of the fabric was low as the dyeing concentration was increased.
Examples 2 to 3
The alkali concentration was 200g/L and the dyeing temperature was 95 ℃ and the sulfur black concentrations were tested at 40g/L, 60g/L, 80g/L, 100g/L, 120g/L, 150g/L, 200g/L and 250g/L, respectively, to confirm the effect of the alkali concentration on the aging performance, and the same tendency as in Table 2 was obtained, that is, the aging strength of the fabric was low as the dyeing concentration increased.
Examples 2 to 4
The alkali concentration was changed to 120g/L, the dyeing temperature was 95 ℃ and the sulfur black concentrations were tested to 40g/L, 60g/L, 80g/L, 100g/L, 120g/L, 150g/L, 200g/L and 250g/L, respectively, and the effect of the alkali concentration on the aging performance was confirmed, and the same tendency as in Table 2 was obtained, that is, the aging strength of the fabric was low as the dyeing concentration was increased.
Example 3: influence of temperature on the dyeing effect
In the dyeing process of the present example, warp yarns of cotton polyester elastic jean fabric were treated, and the alkali concentration in the dyeing solution was 150g/L, the dyeing concentration was 100g/L, and the influence of the temperature on the aging performance was confirmed at 70 ℃, 75 ℃, 80 ℃, 85 ℃, 95 ℃ and 98 ℃ respectively, and the results are shown in table 3.
Table 3: effect of different temperatures on aging Properties
It can be seen from table 3 that in the presence of a base, temperature also has some effect on the aging performance, and that lowering the temperature gives a better aging strength, but to a relatively lesser extent. In practice, the temperature effect on the dyeing is manifested primarily in terms of fastness, too low a temperature or a reduction in fastness or even no coloration, so that the temperature range selected is from 80 to 95 ℃.
And (4) conclusion: the high-concentration alkali is added into the dye liquor, so that the ageing resistance of the vulcanized black jean fabric can be improved; the higher the alkali concentration, the greater the degree of improvement, but too high an alkali concentration makes dyeing of the yarn difficult; the dye concentration itself also has an effect on the aging performance, with lower dye concentrations giving better aging performance. When the dye concentration is extremely low, the aging performance of the fabric can meet the aging performance requirement of the fabric, and alkali addition is not needed; temperature is also an influencing factor, but temperature has a greater influence on the color fastness and a relatively smaller influence on the ageing properties. From a practical point of view, it is not necessary to adjust the temperature control range widely.
In the above case, when the concentration of the sulfur black is 100g/L, any one of the following reducing agents can be added into the dye liquor:
(1) thiourea dioxide is a reducing agent, and the addition amount is 0.5 g/L;
(2) glucose is used as a reducing agent, and the addition amount is 1.5 g/L;
(3) d-fructose is a reducing agent, and the addition amount is 2 g/L;
(4) d-lactose sulfuration is used as a reducing agent, and the addition amount is 2.5 g/L.
At this time, the reducing agent is used in combination with the dye to reduce the sulfur dye to a leuco state, so that the sulfur dye can be dyed on the cotton yarn.
The warp dyeing of the jean fabric is raw yarn dyeing, the moisture absorption is poor, and caustic soda and dye liquor are difficult to permeate into the yarn. Therefore, in the above case, when the concentration of the sulfur black is 100g/L and the concentration of the sodium sulfide is 80g/L, any one of the following mercerizing penetrating agents is added for cooperation:
(1) the mercerizing penetrating agent is a phenol-free mercerizing penetrating agent and sodium alkyl alcohol sulfate as mercerizing penetrating agents, and the addition amount is 6+5 g/L;
(2) the phenol-free mercerizing penetrating agent and the sodium alkyl sulfonate are used as mercerizing penetrating agents, and the addition amount is 6+6 g/L;
(3) the non-phenol mercerizing penetrating agent and the alcohol ether compound are used as mercerizing penetrating agents, and the addition amount is 6+5 g/L;
(4) the phenol-free mercerizing penetrating agent and alcohol compounds are used as mercerizing penetrating agents, and the addition amount is 6+7 g/L;
(5) the phenol-free mercerizing penetrating agent and the phosphate compound are used as mercerizing penetrating agents, and the addition amount is 6+10 g/L;
(6) the phenol-free mercerizing penetrating agent and the amino alcohol compound are used as mercerizing penetrating agents, and the addition amount is 6+12 g/L;
(7) the non-phenol mercerizing penetrating agent and the amide compound are used as mercerizing penetrating agents, and the addition amount is 6+15 g/L.
At this time: by means of the mercerizing penetrant, alkali liquor and dye liquor can be permeated rapidly, and mercerizing and dyeing of yarns are achieved.
Claims (10)
1. The production process of the anti-aging jean fabric is characterized by comprising the following steps: placing the denim warp to be treated in a dye solution for dyeing treatment, wherein the alkali concentration in the dye solution is 50-240g/L, the sulfur black concentration is 80-220g/L, and the dyeing temperature is 70-105 ℃.
2. The production process of the anti-aging denim fabric according to claim 1, characterized by comprising the following steps: the alkali concentration is 100-200 g/L.
3. The production process of the anti-aging denim fabric according to claim 1, characterized by comprising the following steps: the alkali is sodium hydroxide solution.
4. The production process of the anti-aging denim fabric according to claim 1, characterized by comprising the following steps: the concentration of the sulfur black is 80-120 g/L.
5. The production process of the anti-aging denim fabric according to claim 1, characterized by comprising the following steps: the dyeing temperature is 90-95 ℃.
6. The production process of the anti-aging denim fabric according to claim 1, characterized by comprising the following steps: in the dye solution, the alkali concentration is 150g/L, the sulfur black concentration is 100g/L, and the dyeing temperature is 90 ℃.
7. The production process of the anti-aging denim fabric according to any one of claims 1 to 6, characterized by comprising the following steps: the dye liquor is also added with a reducing agent, and the addition amount of the reducing agent is 0.3g/L-3 g/L.
8. The production process of the anti-aging denim fabric according to claim 7, characterized by comprising the following steps: the reducing agent is any one of thiourea dioxide, D-glucose, D-fructose and D-lactose.
9. The production process of the anti-aging denim fabric according to any one of claims 1 to 6, characterized by comprising the following steps: the dye liquor is also added with a mercerizing penetrating agent, and the addition amount of the mercerizing penetrating agent is 5g/L-20 g/L.
10. The production process of the anti-aging denim fabric according to claim 9, characterized by comprising the following steps: the mercerizing penetrating agent is any two or more than two of a phenol-free mercerizing penetrating agent, sodium salt of alkyl alcohol sulfate, sodium salt of alkyl sulfonic acid, alcohol ether compounds, phosphate compounds, amino alcohol compounds, amide compounds and alcohol compounds.
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| CN117005215A (en) * | 2023-08-16 | 2023-11-07 | 韶关市北纺智造科技有限公司 | Vulcanized black dye solution and application thereof |
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| CN117005215B (en) * | 2023-08-16 | 2024-02-23 | 韶关市北纺智造科技有限公司 | Vulcanized black dye solution and application thereof |
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