CN115387133A - Dyeing and finishing process for polyester-nylon composite superfine fiber - Google Patents
Dyeing and finishing process for polyester-nylon composite superfine fiber Download PDFInfo
- Publication number
- CN115387133A CN115387133A CN202211208218.7A CN202211208218A CN115387133A CN 115387133 A CN115387133 A CN 115387133A CN 202211208218 A CN202211208218 A CN 202211208218A CN 115387133 A CN115387133 A CN 115387133A
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- Prior art keywords
- polyester
- dyeing
- nylon composite
- superfine fiber
- washing
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- 239000000835 fiber Substances 0.000 title claims abstract description 59
- 239000002131 composite material Substances 0.000 title claims abstract description 50
- 239000004677 Nylon Substances 0.000 title claims abstract description 48
- 229920001778 nylon Polymers 0.000 title claims abstract description 48
- 238000004043 dyeing Methods 0.000 title claims abstract description 45
- 238000007730 finishing process Methods 0.000 title claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 81
- 238000005406 washing Methods 0.000 claims abstract description 58
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 26
- 239000002253 acid Substances 0.000 claims abstract description 14
- 239000003513 alkali Substances 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 10
- 239000002351 wastewater Substances 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 239000002270 dispersing agent Substances 0.000 claims description 21
- 238000001035 drying Methods 0.000 claims description 13
- 239000002585 base Substances 0.000 claims description 11
- 125000000129 anionic group Chemical group 0.000 claims description 9
- 239000000975 dye Substances 0.000 claims description 9
- 239000004615 ingredient Substances 0.000 claims description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000006386 neutralization reaction Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 235000017550 sodium carbonate Nutrition 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004140 cleaning Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000002736 nonionic surfactant Substances 0.000 description 6
- 239000004952 Polyamide Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004902 Softening Agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000002699 waste material Substances 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
- D06P1/0032—Determining dye recipes and dyeing parameters; Colour matching or monitoring
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
- D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
- D06L1/16—Multi-step processes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Abstract
The invention discloses a dyeing and finishing processing technology of polyester-nylon composite superfine fibers, and relates to the technical field of processing and cleaning production of superfine fibers. The invention at least comprises the following steps of washing the polyester-nylon composite superfine fiber subjected to fiber splitting for the first time; removing impurities from the water body generated by the first water washing, filtering, measuring the pH value, and adding an acid agent or an alkali agent according to the pH value to make the pH value of the water body of the first water washing return to 6.5-8.5; soaping and deoiling the polyester-nylon composite superfine fiber after the first washing; the water body of the first water washing is matched with a new water body to carry out secondary water washing on the polyester-nylon composite superfine fiber neutralized by acid and alkali; and removing impurities from the wastewater generated by the secondary water washing, filtering, measuring the pH value, and adding an acid agent or an alkali agent according to the pH value to enable the pH value of the water body of the secondary water washing to return to 6.5-8.5 for discharging. The invention improves the dyeing and finishing effect of the polyester-nylon composite superfine fiber through the integral process, reduces the generation of waste water and improves the recycling application of water.
Description
Technical Field
The invention relates to the technical field of processing and cleaning production of superfine fibers, in particular to a dyeing and finishing process for polyester-nylon composite superfine fibers.
Background
The superfine fiber is a typical representative of new synthetic fiber which develops from chemical fiber to the direction of high technology and high simulation, and has the characteristics of common chemical fiber, bulkiness, elegance, soft hand feeling and other very special styles, wherein the superfine fiber comprises polyester-nylon composite superfine fiber;
because the whole of the nylon-polyamide composite superfine fiber is refined, when the existing process is applied to the nylon-polyamide composite superfine fiber, the dyeing and finishing processing effect is limited, and a large amount of water is wasted, so that a new solution is required to be provided for the above problems.
Disclosure of Invention
The invention aims to provide a dyeing and finishing processing technology of polyester-nylon composite superfine fibers, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the dyeing and finishing process of the polyester-nylon composite superfine fiber at least comprises the following steps,
carrying out primary water washing on the split polyester-nylon composite superfine fiber;
removing impurities from the water body generated by the first water washing, filtering, measuring the pH value, and adding an acid agent or an alkali agent according to the pH value to make the pH value of the water body of the first water washing return to 6.5-8.5;
soaping and deoiling the polyester-nylon composite superfine fiber after the first washing;
carrying out secondary washing on the polyester-nylon composite superfine fiber neutralized by acid and alkali by adopting the water body of the primary washing to be matched with a new water body;
removing impurities from the wastewater generated by the secondary water washing, filtering, measuring the pH value, and adding an acid agent or an alkali agent according to the pH value to enable the pH value of the water body of the secondary water washing to return to 6.5-8.5 for discharging;
carrying out acid-base neutralization on the washed polyester-nylon composite superfine fiber for the second time;
drying the acid-base neutralized polyester-nylon composite superfine fiber at 150-200 ℃;
placing the polyester-nylon composite superfine fiber into a dyeing tank for dyeing, adding ingredients in the dyeing tank in the dyeing process, wherein the ingredients comprise a compound dispersing agent, a leveling agent, a dyeing agent and water, performing acid-base test on the added ingredients in the dyeing tank, controlling the pH value to be 4.5-5.5, gradually controlling the temperature in the dyeing tank to gradually rise, raising the temperature to 110-140 ℃, preserving the temperature for 20-60min, and cooling to finish dyeing;
2-3g/L of anionic/nonionic high-temperature leveling agent and 1-1.5/L of chelating dispersant are adopted after dyeing, and reduction washing is formed after treatment for 20min at the temperature of 80-100 ℃;
and finishing the qualitative drying of the reduced and washed polyester-nylon composite superfine fiber at 180-200 ℃.
Preferably, the compound dispersant comprises an anionic dispersant and a nonionic dispersant, and the ratio of the anionic dispersant to the nonionic dispersant is 35: and 65, the oil point of the nonionic surfactant is increased, the heat resistance of the nonionic surfactant is improved, a mixed micelle with a double electric layer is formed, the protective effect on the dye particles is stronger, the dispersion liquid is more stable, and the nonionic surfactant is low in foaming property and has small influence on the dye uptake.
Preferably, the first water washing is to add 2% Na2CO3 solution to the inner side of the water body, carry out water washing treatment for 30min at 50 ℃, then wash with water, squeeze dry, dry for 30min at 105 ℃ in a drying oven, move in a dryer, and keep the weight constant for more than 4h for standby.
Preferably, the second water washing is carried out by adding 2g/LHAc solution to the inner side of the water body, so as to finish the second water washing of the polyester-nylon composite superfine fiber.
Compared with the prior art, the invention has the beneficial effects that:
the invention improves the dyeing and finishing effect of the polyester-nylon composite superfine fiber through the integral process, reduces the generation of waste water and improves the recycling application of water.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
The first embodiment is as follows:
the dyeing and finishing process of the polyester-nylon composite superfine fiber at least comprises the following steps,
carrying out primary water washing on the split polyester-nylon composite superfine fiber;
removing impurities from the water body generated by the first water washing, filtering, measuring the pH value, and adding an acid agent or an alkali agent according to the pH value to make the pH value of the water body of the first water washing return to 6.5-8.5;
soaping and deoiling the polyester-nylon composite superfine fiber after the first washing;
the water body of the first water washing is matched with a new water body to carry out secondary water washing on the polyester-nylon composite superfine fiber neutralized by acid and alkali;
removing impurities from the wastewater generated by the secondary water washing, filtering, measuring the pH value, and adding an acid agent or an alkali agent according to the pH value to ensure that the pH value of the water body of the secondary water washing returns to 6.5-8.5 for discharging;
carrying out acid-base neutralization on the washed polyester-nylon composite superfine fiber for the second time;
drying the acid-base neutralized polyester-nylon composite superfine fiber at 150-200 ℃;
placing the polyester-nylon composite superfine fiber into a dyeing tank for dyeing, adding ingredients in the dyeing tank during dyeing, wherein the ingredients comprise a compound dispersing agent, a leveling agent, a dyeing agent and water, performing acid-base test on the added ingredients in the dyeing tank, controlling the pH value to be 4.5-5.5, gradually controlling the temperature in the dyeing tank to gradually rise, rising to 110-140 ℃, preserving the temperature for 20-60min, and cooling to finish dyeing;
2-3g/L of anionic/nonionic high-temperature leveling agent and 1-1.5/L of chelating dispersant are adopted after dyeing, and reduction washing is formed after treatment for 20min at the temperature of 80-100 ℃;
the comparison of the color fastness is greatly improved, and particularly, the color light of the fabric is prevented from being influenced after the process of dyeing dark colors;
and finishing the qualitative drying of the reduced and washed polyester-nylon composite superfine fiber at 180-200 ℃.
The compound dispersant comprises an anionic dispersant and a nonionic dispersant, wherein the ratio of the anionic dispersant to the nonionic dispersant is 35: and 65, the oil point of the nonionic surfactant is increased, the heat resistance of the nonionic surfactant is improved, a mixed micelle with a double electric layer is formed, the protective effect on the dye particles is stronger, the dispersion is more stable, and the nonionic surfactant is foamed, has lower performance and has smaller influence on the dye uptake.
Adding 2% Na2CO3 solution to the inner side of water body by first water washing, performing water washing treatment at 50 deg.C for 30min, then washing with water, squeezing, drying at 105 deg.C for 30min in a drying oven, transferring into a dryer, and keeping constant weight for more than 4 h.
And (4) adding a 2g/LHAc solution to the inner side of the water body for the second water washing to finish the second water washing of the polyester-nylon composite superfine fiber.
The wastewater generated by the two times of water washing is utilized for treatment, the water body is recycled, the waste of a large amount of water body is avoided, and the discharged wastewater is in a proper discharge environment after the adjustment.
Example two:
further dividing the polyester-nylon composite fiber to form a proper application thickness degree of dyeing and finishing processing;
carrying out primary water washing on the split polyester-nylon composite superfine fiber;
removing impurities from the water body generated by the first water washing, filtering, measuring the pH value, and adding an acid agent or an alkali agent according to the pH value to make the pH value of the water body of the first water washing return to 6.5-8.5;
soaping and deoiling the polyester-nylon composite superfine fiber after the first washing;
carrying out acid-base neutralization on the washed polyester-nylon composite superfine fiber;
matching the water body subjected to the first water washing with a new water body to carry out secondary water washing on the polyester-nylon composite superfine fiber subjected to acid-base neutralization;
drying the twice-washed polyester-nylon composite superfine fiber at 150-200 ℃, removing impurities and filtering the wastewater generated by the twice-washing, measuring the pH value, and adding an acid agent or an alkali agent according to the pH value to ensure that the pH value of the water body of the second-washing is returned to 6.5-8.5 for discharging;
feeding and running for 10min at 50 ℃, gradually dripping a softening agent, heating to 96 ℃ at the speed of 1 ℃/min, and practice proves that the dyeing speed of the polyester-nylon composite superfine fiber at 96-98 ℃ is higher, so that the temperature is kept at 96 ℃ for 10min, dye is favorably transferred and dyed on a fiber interface, the level dyeing effect and the dyeing rate are improved, then the temperature is increased to 120 ℃ at the speed of 1 ℃/min, the temperature is kept for 60min, the dye is fully diffused into the fiber, the dyeing fastness is improved, and after the dyeing is finished, the temperature is reduced to 80 ℃ at the speed of 1 ℃/min;
dewatering with centrifugal dewatering machine, and overfeeding and drying with loose dryer at 110 deg.C.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (4)
1. The dyeing and finishing processing technology of the polyester-nylon composite superfine fiber is characterized in that: at least comprises the following steps of,
carrying out primary water washing on the split polyester-nylon composite superfine fiber;
removing impurities from the water body generated by the first water washing, filtering, measuring the pH value, and adding an acid agent or an alkali agent according to the pH value to make the pH value of the water body of the first water washing return to 6.5-8.5;
soaping and deoiling the polyester-nylon composite superfine fiber after the first washing;
carrying out secondary washing on the polyester-nylon composite superfine fiber neutralized by acid and alkali by adopting the water body of the primary washing to be matched with a new water body;
removing impurities from the wastewater generated by the secondary water washing, filtering, measuring the pH value, and adding an acid agent or an alkali agent according to the pH value to enable the pH value of the water body of the secondary water washing to return to 6.5-8.5 for discharging;
carrying out acid-base neutralization on the washed polyester-nylon composite superfine fiber for the second time;
drying the acid-base neutralized polyester-nylon composite superfine fiber at 150-200 ℃;
placing the polyester-nylon composite superfine fiber into a dyeing tank for dyeing, adding ingredients in the dyeing tank during dyeing, wherein the ingredients comprise a compound dispersing agent, a leveling agent, a dyeing agent and water, performing acid-base test on the added ingredients in the dyeing tank, controlling the pH value to be 4.5-5.5, gradually controlling the temperature in the dyeing tank to gradually rise, rising to 110-140 ℃, preserving the temperature for 20-60min, and cooling to finish dyeing;
2-3g/L of anionic/nonionic high-temperature leveling agent and 1-1.5/L of chelating dispersant are adopted after dyeing, and reduction washing is formed after treatment for 20min at the temperature of 80-100 ℃;
and finishing the qualitative drying of the reduced and washed polyester-nylon composite superfine fiber at 180-200 ℃.
2. The dyeing and finishing process of the polyester-nylon composite superfine fiber according to claim 1, characterized in that: the compound dispersant comprises an anionic dispersant and a nonionic dispersant, wherein the ratio of the anionic dispersant to the nonionic dispersant is 35:65.
3. the dyeing and finishing process of polyester-nylon composite superfine fiber according to claim 1, characterized in that: adding 2% Na2CO3 solution to the inner side of the water body by the first water washing, carrying out water washing treatment for 30min at 50 ℃, then washing with water, squeezing, drying in a drying oven for 30min at 105 ℃, moving in a dryer, and keeping the weight constant for more than 4h for later use.
4. The dyeing and finishing process of polyester-nylon composite superfine fiber according to claim 1, characterized in that: and the second washing is added to the inner side of the water body by adopting a 2g/LHAc solution, so that the secondary washing of the polyester-nylon composite superfine fiber is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211208218.7A CN115387133A (en) | 2022-09-30 | 2022-09-30 | Dyeing and finishing process for polyester-nylon composite superfine fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211208218.7A CN115387133A (en) | 2022-09-30 | 2022-09-30 | Dyeing and finishing process for polyester-nylon composite superfine fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115387133A true CN115387133A (en) | 2022-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211208218.7A Pending CN115387133A (en) | 2022-09-30 | 2022-09-30 | Dyeing and finishing process for polyester-nylon composite superfine fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115387133A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106149183A (en) * | 2016-08-15 | 2016-11-23 | 福建凤竹纺织科技股份有限公司 | A kind of knitting fabric of polyester-nylon composite superfine fibre and weaving dyeing and finishing technology |
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2022
- 2022-09-30 CN CN202211208218.7A patent/CN115387133A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106149183A (en) * | 2016-08-15 | 2016-11-23 | 福建凤竹纺织科技股份有限公司 | A kind of knitting fabric of polyester-nylon composite superfine fibre and weaving dyeing and finishing technology |
Non-Patent Citations (1)
| Title |
|---|
| 刘仁礼;杨坚毅;: "涤锦复合细旦丝毛巾布的染整工艺", 印染, no. 19, pages 21 - 23 * |
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