CN110983486A - Regenerated sea island filament POY process - Google Patents
Regenerated sea island filament POY process Download PDFInfo
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- CN110983486A CN110983486A CN201911321352.6A CN201911321352A CN110983486A CN 110983486 A CN110983486 A CN 110983486A CN 201911321352 A CN201911321352 A CN 201911321352A CN 110983486 A CN110983486 A CN 110983486A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/36—Matrix structure; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
Abstract
The invention provides a regenerated sea island filament POY process, which comprises the following steps: 1) crystallizing the regenerated PET slices in an environment with the temperature of 150-160 ℃, and drying the crystallized regenerated PET slices; 2) crystallizing the COPET slices at the temperature of 123-133 ℃; 3) enabling the mixture obtained in the step 1) and the COPET melt obtained in the step 2) to flow out through respective flow guide grooves and a spinneret plate to form filaments; 4) cooling the strand silk formed in the step 3) in a side blowing mode; 5) oiling the cooled filaments, wherein the oiling model is F-2169, and the oil concentration is 10%; 6) and winding and forming the oiled filaments, wherein the speed of GR1 is 2600-2900m/min, the speed of GR2 is 2620-2920m/min, and the winding speed is 2700-2900 m/min. According to the regenerated sea island filament POY process provided by the invention, the physical indexes such as strength and elongation of the produced POY fiber filament are greatly improved, and compared with the traditional regenerated fiber, the speed of a vehicle can be further improved, the production period is shortened, and the application range is widened.
Description
Technical Field
The invention relates to the field of spinning, in particular to a regenerated sea island filament POY process.
Background
In recent years, with the progress of science and technology, more and more polyester fiber products appear in people's lives. However, the living standard of people is continuously rising, the demand for resources is gradually increasing, so that the phenomenon of shortage of natural resources is caused, and if new energy cannot be found in time, the energy is consumed by people in hundreds of years. At present, the comprehensive recovery rate of waste chemical fiber textiles and polyester bottle chips in China is insufficient, millions of tons of wastes of textile clothes are produced every year, most of the wastes are buried and burned as garbage, and therefore resource waste is caused and the environment is polluted. As such, recycled polyester is introduced to date, which is actually a reprocessed virgin polyester product, thereby creating a completely new product. But at the present stage, the production cost of the recycled polyester is higher and the product quality stability is poorer due to the reasons of technology, channel and the like, and the development of the recycled polyester is always restricted.
Sea-island fibers (filaments) are fibers in which one polymer is dispersed in another polymer, the dispersed phase is in the form of "islands" in the cross section of the fiber, and the matrix corresponds to "sea", in which one component is surrounded by another component in a finely dispersed state as viewed in the cross section of the fiber, as if there are many islands in the sea. Sea-island fibers have a reduced diameter and an increased surface area per unit weight of the fiber as the fineness of the fiber decreases. The fiber has the advantages that the covering capacity of the fiber is increased along with the increase of the surface area, the moisture absorption performance is greatly improved, the fiber has high covering performance, the fiber is softer due to the superfine fiber, the fiber is made into a fabric, the wicking action of capillary tubes can be generated, the fabric can absorb more moisture, the moisture can be moved to the surface of the fabric and evaporated, the wearing comfort is increased, the hand feeling is soft, the wearing comfort is comfortable, the smaller the diameter of the superfine fiber is, the larger the curvature radius of the fiber is, the larger the proportion of the scattering light reflected by the surface of the fiber is, the color tone of the surface of the fabric is softer, and the sea island fiber is developed to have soft hand feeling, good drapability and light and thin texture, so that various surface treatments can be carried out, and the surface. The surface has writing effect and good stereoscopic impression; the wet heat shrinkage deformation is small, the breathable, waterproof and breathable effects are good, and the fabric strength is high.
The composite spinning method of sea-island fiber uses polyester (COPET) easy to hydrolyze as sea component, Polyester (PET) as island component, the ratio of sea to island is 30: 70, the height can reach 10: 90. The production and process of common PET sea island filament are mature, the development and application of products are greatly advanced, in recent years, the regenerated polyester is applied to a certain extent due to the increase of environmental awareness of people, but in the field of superfine fiber products with higher requirements on the performance of raw materials like sea island fibers, the common regenerated polyester cannot be applied in large scale in batch.
Disclosure of Invention
In order to solve the problems in the background art, the invention aims to provide a regenerated sea island filament POY process, which enables a melt to have better rheological property and uniformity by adding modified materials such as nano barium sulfate and the like, improves the spinnability of regenerated polyester and the mechanical properties such as strength, elongation and the like of fibers, and further expands the application field of the regenerated polyester.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a regenerated sea island filament POY process comprises the following steps:
1) crystallizing the regenerated PET slices in an environment with the temperature of 150-160 ℃, drying the crystallized regenerated PET slices at the temperature of 165-175 ℃, for 6-7h, with the dry air pressure of 2kg and the dry air temperature of-100 ℃, and drying the nano barium sulfate master batch in an environment with the temperature of 90-110 ℃ for 7-9 h; mixing and stirring the obtained PET slices and the nano barium sulfate master batch to obtain a mixture, melting the mixture in a screw A, wherein the screw A is divided into four regions, the melting temperature is 270-290 ℃, and then entering a spinning box A, and the temperature is 277-287 ℃;
2) crystallizing the COPET slice at the temperature of 123-133 ℃, drying the crystallized COPET slice at the temperature of 120-130 ℃ under the dry air pressure of 2kg for 10-14h, melting the dried COPET slice in a screw B, wherein the screw B is divided into four regions, the melting temperature is 240-270 ℃, the melted COPET slice enters a spinning box B, and the temperature of the spinning box B is 260-270 ℃;
3) enabling the mixture obtained in the step 1) and the COPET melt obtained in the step 2) to flow out through respective flow guide grooves and a spinneret plate to form filaments;
4) cooling the strand silk formed in the step 3) in a side-blowing mode, wherein the wind speed is 0.4-0.5m/s, and the temperature is 20-26 ℃;
5) oiling the cooled filaments;
6) winding and forming the oiled filament;
7) and (6) testing and warehousing.
As an improvement, the adding proportion of the nano barium sulfate master batch is 3-15% of the mass of the regenerated PET slice.
As an improvement, the type of the spinneret plate used in the step 3) is
The component sand is metal sand.
As an improvement, the type of oiling in the step 5) is F-2169, and the concentration of the oil is 8-12%.
As an improvement, the winding speed in the step 6) is 2600-2900m/min for GR1, 2620-2920m/min for GR2 and 2700-2900m/min for GR 1.
The invention has the beneficial effects that:
according to the invention, through the addition of modified materials such as nano barium sulfate, the spinnability of the regenerated polyester is improved, the physical indexes such as strength and elongation of the produced POY fiber filament are greatly improved, and compared with the traditional regenerated fiber, the speed of the vehicle can be further improved, the production period is shortened, and the application range is widened.
Detailed Description
The invention is illustrated below by means of specific examples, without being restricted thereto.
Example one
A regenerated sea island filament POY process comprises the following steps:
1) crystallizing the regenerated PET slices at the temperature of 155 ℃, drying the crystallized regenerated PET slices at the temperature of 170 ℃ for 6.5 hours, under the pressure of 2kg of dry air at the temperature of-100 ℃, and drying the nano barium sulfate master batch at the temperature of 100 ℃ for 8 hours; mixing and stirring the obtained PET slices and the nano barium sulfate master batches to obtain a mixture, melting the mixture in a screw A, wherein the temperature in the first area of the screw is as follows: 275 ℃, temperature in screw zone two: 280 ℃, three zones of the screw temperature: 285 ℃, screw zone four temperature: 285 ℃, and then enters a spinning box A at the temperature of 282 ℃;
2) crystallizing the COPET slices at the temperature of 128 ℃, drying the crystallized COPET slices for 13.3 hours at the temperature of 123 ℃ under the dry air pressure of 2kg, melting the dried COPET slices on a screw B, wherein the temperature of a first screw region is as follows: 245 ℃, temperature in screw zone two: 255 ℃, three-zone temperature of the screw: 260 ℃, screw zone four temperature: the temperature of the molten COPET slice is 260 ℃, and the temperature of the spinning box B is 265 ℃;
3) enabling the mixture obtained in the step 1) and the COPET melt obtained in the step 2) to flow out through respective flow guide grooves and a spinneret plate to form filaments;
4) cooling the strand silk formed in the step 3) in a side-blowing mode, wherein the wind speed is 0.5m/s, and the temperature is 23 ℃;
5) oiling the cooled filaments, wherein the oiling model is F-2169, and the oil concentration is 10%;
6) winding and forming the oiled filaments, wherein the speed of GR1 is 2770m/min, the speed of GR2 is 2790m/min, and the winding speed is 2800 m/min;
7) and (6) testing and warehousing.
The adding proportion of the nano barium sulfate master batch is 3 percent of the mass of the regenerated PET slice.
The type of the spinneret plate used in the step 3) is
The component sand is metal sand.
The preparation method of the barium sulfate master batch comprises the following steps: 70% of regenerated polyester, 8% of lubricant, 4% of grafting monomer, 2% of initiator and the balance of nano barium sulfate; the lubricant is selected from one or more of polyethylene wax, vinyl bis stearamide, zinc stearate, pentaerythritol stearate, polyethylene glycol, titanate coupling agent and aluminate coupling agent; the grafting monomer is selected from one or more of maleic anhydride, acrylic acid, styrene and butyl acrylate; the initiator is selected from one or more of dicumyl peroxide, dibenzoyl peroxide, di-tert-butyl peroxide, lauroyl peroxide, dicyclohexyl peroxydicarbonate, diisopropyl peroxydicarbonate, di-tert-butyl peroxypivalate and tert-butyl peroxybenzoate, and the initiator is prepared by uniformly stirring all the raw materials by a mixer, extruding by a double-screw extruder at 180 ℃ and granulating.
Example two
A regenerated sea island filament POY process comprises the following steps:
1) crystallizing the regenerated PET slices at the temperature of 155 ℃, drying the crystallized regenerated PET slices at the temperature of 170 ℃ for 6.5 hours, under the pressure of 2kg of dry air at the temperature of-100 ℃, and drying the nano barium sulfate master batch at the temperature of 100 ℃ for 8 hours; mixing and stirring the obtained PET slices and the nano barium sulfate master batches to obtain a mixture, melting the mixture in a screw A, wherein the temperature in the first area of the screw is as follows: 275 ℃, temperature in screw zone two: 280 ℃, three zones of the screw temperature: 285 ℃, screw zone four temperature: 285 ℃, and then enters a spinning box A at the temperature of 282 ℃;
2) crystallizing the COPET slices at the temperature of 128 ℃, drying the crystallized COPET slices for 13.3 hours at the temperature of 123 ℃ under the dry air pressure of 2kg, melting the dried COPET slices on a screw B, wherein the temperature of a first screw region is as follows: 245 ℃, temperature in screw zone two: 255 ℃, three-zone temperature of the screw: 260 ℃, screw zone four temperature: the temperature of the molten COPET slice is 260 ℃, and the temperature of the spinning box B is 265 ℃;
3) enabling the mixture obtained in the step 1) and the COPET melt obtained in the step 2) to flow out through respective flow guide grooves and a spinneret plate to form filaments;
4) cooling the strand silk formed in the step 3) in a side-blowing mode, wherein the wind speed is 0.5m/s, and the temperature is 23 ℃;
5) oiling the cooled filaments, wherein the oiling model is F-2169, and the oil concentration is 10%;
6) winding and forming the oiled filaments, wherein the speed of GR1 is 2775m/min, the speed of GR2 is 2790m/min, and the winding speed is 2800 m/min;
7) and (6) testing and warehousing.
The adding proportion of the nano barium sulfate master batch is 6 percent of the mass of the regenerated PET slice.
The type of the spinneret plate used in the step 3) is
The component sand is metal sand.
The preparation method of the barium sulfate master batch comprises the following steps: 80% of regenerated polyester, 8% of lubricant, 4% of grafting monomer, 4% of initiator and the balance of nano barium sulfate; the lubricant is selected from one or more of polyethylene wax, vinyl bis stearamide, zinc stearate, pentaerythritol stearate, polyethylene glycol, titanate coupling agent and aluminate coupling agent; the grafting monomer is selected from one or more of maleic anhydride, acrylic acid, styrene and butyl acrylate; the initiator is selected from one or more of dicumyl peroxide, dibenzoyl peroxide, di-tert-butyl peroxide, lauroyl peroxide, dicyclohexyl peroxydicarbonate, diisopropyl peroxydicarbonate, di-tert-butyl peroxypivalate and tert-butyl peroxybenzoate, and the initiator is prepared by uniformly stirring all the raw materials by a mixer, extruding by a double-screw extruder at 180 ℃ and granulating.
EXAMPLE III
A regenerated sea island filament POY process comprises the following steps:
1) crystallizing the regenerated PET slices at the temperature of 155 ℃, drying the crystallized regenerated PET slices at the temperature of 170 ℃ for 6.5 hours, under the pressure of 2kg of dry air at the temperature of-100 ℃, and drying the nano barium sulfate master batch at the temperature of 100 ℃ for 8 hours; mixing and stirring the obtained PET slices and the nano barium sulfate master batches to obtain a mixture, melting the mixture in a screw A, wherein the temperature in the first area of the screw is as follows: 275 ℃, temperature in screw zone two: 280 ℃, three zones of the screw temperature: 285 ℃, screw zone four temperature: 285 ℃, and then enters a spinning box A at the temperature of 282 ℃;
2) crystallizing the COPET slices at the temperature of 128 ℃, drying the crystallized COPET slices for 13.3 hours at the temperature of 123 ℃ under the dry air pressure of 2kg, melting the dried COPET slices on a screw B, wherein the temperature of a first screw region is as follows: 245 ℃, temperature in screw zone two: 255 ℃, three-zone temperature of the screw: 260 ℃, screw zone four temperature: the temperature of the molten COPET slice is 260 ℃, and the temperature of the spinning box B is 265 ℃;
3) enabling the mixture obtained in the step 1) and the COPET melt obtained in the step 2) to flow out through respective flow guide grooves and a spinneret plate to form filaments;
4) cooling the strand silk formed in the step 3) in a side-blowing mode, wherein the wind speed is 0.5m/s, and the temperature is 23 ℃;
5) oiling the cooled filaments, wherein the oiling model is F-2169, and the oil concentration is 10%;
6) winding and forming the oiled filaments, wherein the speed of GR1 is 2670m/min, the speed of GR2 is 2690m/min, and the winding speed is 2700 m/min;
7) and (6) testing and warehousing.
The adding proportion of the nano barium sulfate master batch is 9 percent of the mass of the regenerated PET slice.
The type of the spinneret plate used in the step 3) is
The component sand is metal sand.
The preparation method of the barium sulfate master batch comprises the following steps: 80% of regenerated polyester, 8% of lubricant, 4% of grafting monomer, 4% of initiator and the balance of nano barium sulfate; the lubricant is selected from one or more of polyethylene wax, vinyl bis stearamide, zinc stearate, pentaerythritol stearate, polyethylene glycol, titanate coupling agent and aluminate coupling agent; the grafting monomer is selected from one or more of maleic anhydride, acrylic acid, styrene and butyl acrylate; the initiator is selected from one or more of dicumyl peroxide, dibenzoyl peroxide, di-tert-butyl peroxide, lauroyl peroxide, dicyclohexyl peroxydicarbonate, diisopropyl peroxydicarbonate, di-tert-butyl peroxypivalate and tert-butyl peroxybenzoate, and the initiator is prepared by uniformly stirring all the raw materials by a mixer, extruding by a double-screw extruder at 180 ℃ and granulating.
The following describes the preferred embodiment in combination with a table comparison:
the above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A regenerated sea island filament POY process is characterized by comprising the following steps:
1) crystallizing the regenerated PET slices in an environment with the temperature of 150-160 ℃, drying the crystallized regenerated PET slices at the temperature of 165-175 ℃, for 6-7h, with the dry air pressure of 2kg and the dry air temperature of-100 ℃, and drying the nano barium sulfate master batch in an environment with the temperature of 90-110 ℃ for 7-9 h; mixing and stirring the obtained PET slices and the nano barium sulfate master batch to obtain a mixture, melting the mixture in a screw A, wherein the screw A is divided into four regions, the melting temperature is 270-290 ℃, and then entering a spinning box A, and the temperature is 277-287 ℃;
2) crystallizing the COPET slice at the temperature of 123-133 ℃, drying the crystallized COPET slice at the temperature of 120-130 ℃ under the dry air pressure of 2kg for 10-14h, melting the dried COPET slice in a screw B, wherein the screw B is divided into four regions, the melting temperature is 240-270 ℃, the melted COPET slice enters a spinning box B, and the temperature of the spinning box B is 260-270 ℃;
3) enabling the mixture obtained in the step 1) and the COPET melt obtained in the step 2) to flow out through respective flow guide grooves and a spinneret plate to form filaments;
4) cooling the strand silk formed in the step 3) in a side-blowing mode, wherein the wind speed is 0.4-0.5m/s, and the temperature is 20-26 ℃;
5) oiling the cooled filaments;
6) winding and forming the oiled filament;
7) and (6) testing and warehousing.
2. The POY process of claim 1, wherein the nano barium sulfate master batch is added in a proportion of 3-15% of the mass of the recycled PET chips.
3. The POY process of claim 1, wherein the spinneret plate used in step 3)The model is
The component sand is metal sand.
4. The process of claim 1, wherein the oil applied in step 5) is F-2169 and the concentration of oil is 8-12%.
5. The POY process of claim 1, wherein the winding speed in step 6) is 2600-2900m/min for GR1, 2620-2920m/min for GR2 and 2700-2900 m/min.
6. The POY process of claim 1, wherein the preparation method of the barium sulfate master batch comprises the following steps: 50-90% of regenerated polyester, 0.5-12% of lubricant, 0.03-8% of grafting monomer, 0.002-6% of initiator and the balance of nano barium sulfate; the lubricant is selected from one or more of polyethylene wax, vinyl bis stearamide, zinc stearate, pentaerythritol stearate, polyethylene glycol, titanate coupling agent and aluminate coupling agent; the grafting monomer is selected from one or more of maleic anhydride, acrylic acid, styrene and butyl acrylate; the initiator is selected from one or more of dicumyl peroxide, dibenzoyl peroxide, di-tert-butyl peroxide, lauroyl peroxide, dicyclohexyl peroxydicarbonate, diisopropyl peroxydicarbonate, di-tert-butyl peroxydicarbonate, tert-butyl peroxypivalate and tert-butyl peroxybenzoate, and the initiator is prepared by uniformly stirring the raw materials by a mixer, extruding by a double-screw extruder at 100-200 ℃ and granulating.
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| CN112853521A (en) * | 2020-12-30 | 2021-05-28 | 杭州东南纺织有限公司 | Production method of anti-static POY (polyester pre-oriented yarn) |
| CN113417029A (en) * | 2021-06-24 | 2021-09-21 | 杭州惠丰化纤有限公司 | Elastic sea island yarn and production process thereof |
| CN114892308A (en) * | 2022-06-07 | 2022-08-12 | 兴惠化纤集团有限公司 | Preparation process of sea-island fiber |
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| CN114892308A (en) * | 2022-06-07 | 2022-08-12 | 兴惠化纤集团有限公司 | Preparation process of sea-island fiber |
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