CN115074927B - Polyester fiber and preparation method thereof - Google Patents
Polyester fiber and preparation method thereof Download PDFInfo
- Publication number
- CN115074927B CN115074927B CN202210904289.4A CN202210904289A CN115074927B CN 115074927 B CN115074927 B CN 115074927B CN 202210904289 A CN202210904289 A CN 202210904289A CN 115074927 B CN115074927 B CN 115074927B
- Authority
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- China
- Prior art keywords
- polyester fiber
- polyester
- container
- unidirectional
- pool
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- 239000000835 fiber Substances 0.000 title claims abstract description 86
- 229920000728 polyester Polymers 0.000 title claims abstract description 83
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 74
- 238000004043 dyeing Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003086 colorant Substances 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 25
- 238000003860 storage Methods 0.000 claims description 13
- 239000004744 fabric Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000975 dye Substances 0.000 description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- WOZVHXUHUFLZGK-UHFFFAOYSA-N dimethyl terephthalate Chemical compound COC(=O)C1=CC=C(C(=O)OC)C=C1 WOZVHXUHUFLZGK-UHFFFAOYSA-N 0.000 description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 208000034699 Vitreous floaters Diseases 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
-
- 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
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention relates to polyester fiber processing, in particular to a polyester fiber and a preparation method thereof, wherein the method comprises the following steps: step one, expanding and conveying polyester fibers, wherein the conveying path passes through a first unidirectional-conduction container, and steam is continuously injected into the container; step two, after the polyester fiber leaves the first unidirectional conduction container, wiping the polyester fiber, and continuously injecting hot air into the second unidirectional conduction container through the second unidirectional conduction container; step three, before the polyester fiber completely loses heat, dyeing is carried out by a polyester fiber processing device comprising a material pool I with dye liquor, the base color is dyed firstly, and then other colors are dyed in different areas of the polyester fiber; fourthly, treating the polyester fiber color conversion area by steam; and fifthly, drying the polyester fibers after water passing, wherein the purpose is to improve the color effect of the polyester fibers by utilizing the dark and light colors.
Description
Technical Field
The invention relates to polyester fiber processing, in particular to a polyester fiber and a preparation method thereof.
Background
Polyester fiber is an important variety of synthetic fiber, and is a fiber prepared from refined terephthalic acid (PTA) or dimethyl terephthalate (DMT) and Ethylene Glycol (EG) as raw materials through esterification or transesterification and polycondensation, namely polyethylene terephthalate (PET), and through spinning and post-treatment.
Its advantages are high crease resistance and shape retention, high strength and elastic restoring power, and high dyeing cost.
Disclosure of Invention
The invention provides a polyester fiber and a preparation method thereof, and aims to improve the color effect of the polyester fiber.
The above object is achieved by the following technical scheme:
A method for preparing polyester fiber, comprising the following steps:
step one, expanding and conveying polyester fibers, wherein the conveying path passes through a first unidirectional-conduction container, and steam is continuously injected into the container;
Step two, after the polyester fiber leaves the first unidirectional conduction container, wiping the polyester fiber, and continuously injecting hot air into the second unidirectional conduction container through the second unidirectional conduction container;
Step three, before the polyester fiber completely loses heat, dyeing is carried out by a polyester fiber processing device comprising a material pool I (11) with dye liquor, the base color is dyed firstly, and then other colors are dyed in different areas of the polyester fiber;
Fourthly, treating the polyester fiber color conversion area by steam;
And fifthly, drying the polyester fiber after water passing.
The first unidirectional conduction container comprises a transverse section and a drainage section extending downwards, a guide wheel is rotatably connected in the first unidirectional conduction container and located at the junction of the transverse section and the drainage section, and the guide wheel is used for supporting or guiding polyester fibers.
The wiping mode is completed by adopting a mode that the fabric is wrapped by polyester fibers and continuously pressed to absorb water.
The extending direction of the conducting passage of the second unidirectional conducting container is consistent with the conveying direction of the nearby polyester fiber.
The temperature of the dye in the material pool I is 30-90 ℃, and the specific temperature range is selected according to the dye.
The polyester fiber processing device further comprises two low-level rollers which are respectively connected to the left side and the right side of the material pool I in a rotating mode, the axes of the low-level rollers are perpendicular to the virtual straight line in the conveying direction of the polyester fiber, and the bottoms of the two low-level rollers can be lower than the liquid level of the dye in the material pool I.
The left end and the right end of the material pool I are respectively provided with an inclined plane inclined towards the upper side, and the top parts of the left end and the right end of the material pool I are lower than the top parts of the front end and the rear end of the material pool I.
The polyester fiber processing device further comprises a filtering component, the filtering component comprises a supporting frame, the supporting frame is provided with an upper opening and a lower opening, the supporting frame is provided with a unilaterally conducted slideway, a filter screen mounting frame is connected in the slideway in a sliding mode, filter screens are fixedly connected on the filter screen mounting frame, the filtering component is symmetrically arranged in a bilateral symmetry mode, and the two filter screens are respectively arranged below the left side and the right side of the material pool I.
The polyester fiber processingequipment still includes the upper shed structure and sets up the material shell that gathers in the below of material pond I, gathers material shell upper shed's scope and is greater than material pond I, gathers the center rigid coupling of material shell lower extreme and communicates there is the storage vat, gather and be equipped with the inclined plane to the storage vat drainage on the material shell, gather the material shell upper end and install the pump, the rigid coupling is gone up and the intercommunication has liquid pipe I and liquid pipe II, liquid pipe II stretches into the storage vat in order to take out liquid and give liquid pipe I, liquid pipe I rigid coupling and intercommunication are at the center of material pond I lower extreme.
The polyester fiber comprises areas with different colors, and the color change part is gradually changed.
Drawings
FIG. 1 is a flow chart of a method for preparing a polyester fiber;
FIG. 2 is a schematic diagram of the overall structure of a polyester fiber processing device;
FIG. 3 is a schematic view of a dyeing assembly;
FIG. 4 is a schematic view of a part of the circulation assembly;
FIG. 5 is a schematic diagram of a filter assembly;
FIG. 6 is a schematic diagram of a portion of a circulation assembly;
FIG. 7 is a schematic diagram of the structure of the independent coloring assembly;
Fig. 8 is a partial schematic view of fig. 7.
Detailed Description
A method for preparing polyester fiber, comprising the following steps:
The method comprises the steps of firstly, stretching polyester fibers to a naturally unfolded state, and then conveying the polyester fibers in a conveying mode by adopting a rotary conveying roller, wherein one end of the conveying mode is released, and the other end of the conveying mode is rolled, wherein a conveying path needs to pass through two unidirectional conducting containers, firstly passes through a first unidirectional conducting container, and steam needs to be continuously injected into the first unidirectional conducting container;
Step two, after the polyester fiber leaves the first unidirectional conduction container, wiping, and passing through a second unidirectional conduction container, continuously injecting hot air into the second unidirectional conduction container to dry, wherein the water content of the polyester fiber is low in the treatment mode, the drying is facilitated, and the dyeing efficiency and the firmness of the color can be increased;
The first unidirectional conduction container comprises a transverse section and a drainage section extending downwards, a guide wheel is rotatably connected in the first unidirectional conduction container and located at the junction of the transverse section and the drainage section, the polyester fiber is lapped on the upper portion of the guide wheel, the polyester fiber is supported and guided by the guide wheel, and a groove is formed in the portion of the guide wheel supporting the polyester fiber to limit the polyester fiber.
The extension direction of the conduction path of the second unidirectional conduction container is consistent with the conveying direction of nearby polyester fibers, and hot air is communicated with the second unidirectional conduction container by adopting an electric heating fan connecting pipeline.
The wiping mode is completed by wrapping polyester fibers with fabric and continuously pressing the fabric to absorb water.
Step three, before the polyester fiber completely loses heat, dyeing is carried out by a polyester fiber processing device comprising a material pool I11 with dye liquor, a lighter-colored ground color is formed after the dyeing of the material pool I11, and when the polyester fiber leaves the material pool I11, other colors are dyed in different areas of the polyester fiber, so that the effect of color alternation is realized;
Fourthly, performing steam treatment on the color conversion area of the polyester fiber to lighten the color at the color juncture so as to realize gradual change;
step four, drying the polyester fiber after supercooling water;
and fifthly, carrying out fixation treatment, wherein the pH value of the fixation solution is preferably 7-9.
The polyester fiber processing device comprises a dyeing assembly, wherein the dyeing assembly comprises a material pool I11 with an upper opening, an inclined plane 12, two low-level rollers 13 and a high-level roller 14;
The tops of the left end and the right end of the material pool I11 are lower than the tops of the front end and the rear end of the material pool I, and the left end and the right end of the material pool I11 are respectively provided with an inclined surface 12 which extends far away from the center direction of the material pool I, so that floats can not be gathered at the left end and the right end of the material pool I11, and the floats can be discharged along with the dye liquor along with the rising of the dye liquor injection liquid level to the top positions of the left end and the right end of the material pool I11; the two low-level rollers 13 are respectively and rotatably connected to the left side and the right side of the material pool I11, the bottoms of the low-level rollers 13 are lower than the bottoms of the left end and the right end of the material pool I11, polyester fibers pass through the bottoms of the low-level rollers 13 and are attached to the bottoms of the low-level rollers 13, the high-level rollers 14 are rotatably connected to the upper right side of the material pool I11, and the polyester fibers are wound to the upper left side of the high-level rollers 14 and are attached to the high-level rollers 14, so that the polyester fibers are led to leave the material pool I11;
Preferably, the high-level roller 14 is uniformly provided with a plurality of annular grooves from front to back so as to carry out fibers on polyester fibers of different bundles;
Further, the filter assembly comprises a support frame 31, the support frame 31 is provided with an upper opening and a lower opening, the support frame 31 is provided with a slide way with a single-side conduction, a filter screen 33 mounting frame 32 is connected in a sliding manner in the slide way, the filter screen 33 is fixedly connected to the filter screen 33 mounting frame 32, two filter screens 33 are symmetrically arranged left and right, and the two filter screens 33 are respectively arranged below the left side and the right side of the material pool I11 so as to intercept floaters and enable dyes to flow downwards;
The device also comprises a circulating assembly, wherein the circulating assembly comprises a material collecting shell 21, a material storage barrel 22, a motor I23, stirring blades 24, a pump 41, a liquid pipe I42 and a liquid pipe II 43;
the material collecting shell 21 is of an upper opening structure and is arranged right below the material pool I11, the range of the upper opening of the material collecting shell 21 is larger than the range of the upper opening of the material pool I11, the center of the lower end of the material collecting shell 21 is fixedly connected and communicated with the material storage barrel 22, the material collecting shell 21 is provided with an inclined surface 12 for guiding the material storage barrel 22, the upper end of the material collecting shell 21 is provided with a base, the base is fixedly connected with a pump 41, the pump 41 is fixedly connected and communicated with a liquid pipe I42 and a liquid pipe II 43, the liquid pipe II 43 extends to the lower side of the interior of the material storage barrel 22, the liquid pipe II 43 is close to the inner wall of the material storage barrel 22, so that the liquid pipe II 43 is used for pumping the liquid inside of the material storage barrel 22 to the liquid pipe I42, and the liquid pipe I42 is fixedly connected and communicated with the center of the lower end of the material pool I11 to realize dye circulation;
The automatic dyeing machine further comprises an independent dyeing component, wherein a material pool II 51 with an upper opening is arranged on the independent dyeing component, the material pool II 51 is arranged on the right side of the material pool I11, two vertical guide posts 52 are fixedly connected at the front end and the rear end of the material pool II 51 respectively, each guide post 52 is connected with a bending seat 53 in a sliding manner, a dyeing roller 54 is rotationally connected between the two bending seats 53, the rear end of the bending seat 53 positioned at the rear side is fixedly connected with a straight slot frame 55, a motor II 61 is arranged in a positioning manner, the output shaft of the motor II 61 is arranged forward, the output shaft of the motor II 61 is fixedly connected with one end of a connecting rod 62, the other end of the connecting rod 62 is rotationally connected with a deflector rod 63, the deflector rod 63 is inserted and slides in the straight slot frame 55, when the motor II 61 is started to drive the connecting rod 62 to rotate, the deflector rod 63 is driven to reciprocate up and down, the deflector rod 63 drives the straight slot frame 55 to reciprocate up and down, the straight slot frame 55 drives the bending seat 53 and the dyeing roller 54 to reciprocate up and down, when the dyeing roller 54 descends and can enter the material pool II 51 to contact with dye liquor, the dyeing roller 54 ascends and can contact with polyester fibers led out from the material pool I11, the dyeing roller 54 repeatedly ascends and intermittently contacts with the polyester fibers to dye the polyester fibers intermittently, the color of a dye in the material pool I11 is deeper than the ground color on the polyester fibers so as to successfully cover the ground color, the lifting stroke of the dyeing roller 54 is determined by the length of the connecting rod 62, the smaller the lifting stroke is, the better the outer surface of the dyeing roller 54 can be fixedly connected with a moisture absorption layer so as to absorb more dye liquor and polyester fiber contact deformation to squeeze the dye liquor onto the whole circumferential surface of the polyester fibers, and the moisture absorption layer can adopt a fabric with superfine fibers as raw materials.
Claims (7)
1. A method for preparing polyester fiber, comprising the following steps:
step one, expanding and conveying polyester fibers, wherein the conveying path passes through a first unidirectional-conduction container, and steam is continuously injected into the container;
Step two, after the polyester fiber leaves the first unidirectional conduction container, wiping the polyester fiber, and continuously injecting hot air into the second unidirectional conduction container through the second unidirectional conduction container;
Step three, before the polyester fiber completely loses heat, dyeing is carried out by a polyester fiber processing device comprising a material pool I (11) with dye liquor, the base color is dyed firstly, and then other colors are dyed in different areas of the polyester fiber;
Fourthly, treating the polyester fiber color conversion area by steam;
step five, drying the polyester fiber after water passing;
The polyester fiber processing device further comprises two low-level rollers (13) which are respectively connected to the left side and the right side of the material pool I (11) in a rotating mode, the axes of the low-level rollers (13) are perpendicular to a virtual straight line in the conveying direction of the polyester fiber, and the bottoms of the two low-level rollers (13) can be lower than the liquid level of the dye in the material pool I (11);
Inclined planes (12) inclined outwards and upwards are arranged at the left end and the right end of the material pool I (11), and the tops of the left end and the right end of the material pool I (11) are lower than the tops of the front end and the rear end of the material pool I;
the polyester fiber processing device further comprises a material collecting shell (21) which is of an upper opening structure and is arranged below the material tank I (11), the range of the upper opening of the material collecting shell (21) is larger than that of the material tank I (11), the center of the lower end of the material collecting shell (21) is fixedly connected with a material storage barrel (22) and communicated with the material storage barrel, an inclined surface for draining the material storage barrel (22) is arranged on the material collecting shell (21), a pump (41) is arranged at the upper end of the material collecting shell (21), a liquid pipe I (42) and a liquid pipe II (43) are fixedly connected and communicated with the pump (41), and the liquid pipe II (43) stretches into the material storage barrel (22) to carry out liquid suction and liquid supply, and the liquid pipe I (42) is fixedly connected and communicated with the center of the lower end of the material tank I (11).
2. The preparation method according to claim 1, wherein the first unidirectional conduction container comprises a transverse section and a downward extending drainage section, and a guide wheel is rotatably connected inside the first unidirectional conduction container and positioned at the junction of the transverse section and the drainage section, and is used for supporting or guiding the polyester fiber.
3. The method according to claim 1, wherein the wiping is performed by wrapping polyester fibers with a fabric and continuously pressing the fabric to absorb water.
4. The method according to claim 1, wherein the direction of the passage of the second unidirectional conductive container is aligned with the direction of conveyance of the nearby polyester fibers.
5. The preparation method according to claim 1, wherein the dye temperature in the tank i (11) is 30 ℃ to 90 ℃.
6. The preparation method of claim 1, wherein the polyester fiber processing device further comprises a filtering component, the filtering component comprises a supporting frame (31), the supporting frame (31) is provided with an upper opening and a lower opening, the supporting frame (31) is provided with a unilaterally communicated slideway, a filter screen mounting frame (32) is connected in the slideway in a sliding manner, a filter screen (33) is fixedly connected to the filter screen mounting frame (32), two filter screens (33) are symmetrically arranged on the left side and the right side of the material pool I (11), and the two filter screens (33) are respectively arranged below the left side and the right side of the material pool I.
7. The polyester fiber prepared by the preparation method of claim 1, wherein the polyester fiber comprises areas with different colors, and the color change part is gradually changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210904289.4A CN115074927B (en) | 2022-07-29 | 2022-07-29 | Polyester fiber and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210904289.4A CN115074927B (en) | 2022-07-29 | 2022-07-29 | Polyester fiber and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115074927A CN115074927A (en) | 2022-09-20 |
| CN115074927B true CN115074927B (en) | 2024-04-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210904289.4A Active CN115074927B (en) | 2022-07-29 | 2022-07-29 | Polyester fiber and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115074927B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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2022
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| Publication number | Publication date |
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| CN115074927A (en) | 2022-09-20 |
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