CN111560674A - Preparation method of outdoor pre-spinning coloring regenerated ATY (atom transfer Y) fiber with high filling power - Google Patents
Preparation method of outdoor pre-spinning coloring regenerated ATY (atom transfer Y) fiber with high filling power Download PDFInfo
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- CN111560674A CN111560674A CN202010330273.8A CN202010330273A CN111560674A CN 111560674 A CN111560674 A CN 111560674A CN 202010330273 A CN202010330273 A CN 202010330273A CN 111560674 A CN111560674 A CN 111560674A
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/32—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic
- D02G3/328—Elastic yarns or threads ; Production of plied or cored yarns, one of which is elastic containing elastane
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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
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/04—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers
- D01F11/08—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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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
- 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
- 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
- D01F6/88—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds
- D01F6/92—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polycondensation products as major constituent with other polymers or low-molecular-weight compounds of polyesters
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/08—Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
- D02J1/224—Selection or control of the temperature during stretching
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
Abstract
The invention belongs to the field of functional fiber preparation, and particularly relates to a preparation method of an outdoor spun-dyed regenerated ATY fiber with high filling power.
Description
Technical Field
The invention belongs to the field of functional fiber preparation, and particularly relates to a preparation method of an outdoor pre-spinning coloring regenerated ATY fiber with high filling power.
Background
The ATY fiber, namely the air textured yarn fiber or the air jet textured yarn fiber, is mainly used for processing and interfering the tow through an air jet technology, so that the filaments in the tow are blown open and are blown disorderly, and the monofilaments are promoted to generate the conditions of relative displacement, bending, dislocation, entanglement and the like, thereby achieving the fluffy effect. The fabric woven by the fiber has outstanding woolen feeling and good hand feeling. Because the method directly operates the fiber tows, the waste fiber tows can be used as raw materials, and the recycling of the waste fibers is realized.
The air jet deformation is usually followed and the filament bundle is subjected to heat setting treatment, which mainly aims at eliminating the internal stress of the filaments and improving the crystallinity of the filaments, but the process of improving the crystallinity by heating is equal to the process of driving the macromolecular chains to be re-normalized, so that the filaments are restored to be straight again to a certain extent, the deformation effects of bending, entanglement and the like of the filaments, which are given by the air jet deformation, are weakened, and the overall fluffy feeling of the filament bundle is reduced.
However, many manufacturers cannot easily remove the heat setting process because, as mentioned above, the heat setting process has an important effect on the removal of the internal stress of the filaments, and in the former spray deformation process, a large amount of internal stress has been accumulated on the filaments of the filament bundle, and if the internal stress is not removed, the service strength of the filament is low, and the filament is easily broken. In other words, the heat-setting process contributes significantly more to the elimination of internal stresses in the filaments than to the increase in crystallinity of the filaments.
Thus, applicants desire to minimize the effect of this process on the shape of the filaments while retaining the mature heat-setting process.
Disclosure of Invention
In order to solve the technical problems, the invention provides a preparation method of an outdoor pre-spinning coloring regeneration ATY fiber with high filling power, which mainly comprises the steps of pre-stretching, air deformation, oiling and heat setting of raw material fibers in sequence,
wherein the raw material fiber comprises one or more of PET POY elastic fiber, PET DTY elastic fiber, PBT POY elastic fiber, PBT DTY elastic fiber, and nylon FDY elastic fiber,
the stretching temperature in the pre-stretching is 110-135 ℃, the pre-stretching multiple is 1.1-1.3 times,
pre-stretching, performing primary heat setting on the obtained fiber at 230-240 ℃ for 5-15 min, then cooling to normal temperature (25 ℃, the same below) and performing air deformation,
the air deformation operation is that the fiber tows penetrate into a filament inlet of the deformation nozzle, a compressed air valve is opened, the fiber tows are blown open and blown disorderly under the action of compressed air flow, so that the monofilaments are separated in parallel, when the fiber tows leave a filament channel outlet of the nozzle, the fiber tows turn 90 degrees to generate a curved arc ring and are intertwined among the fiber filaments to form a certain network structure,
the pressure intensity of the compressed air is 0.6-1.2 Mpa, the flow velocity of the compressed air flow is 500-800 m/s, the overfeed rate to the fiber tows in the air deformation operation is 15-35%, the speed of the fiber tows leaving the outlet of the nozzle yarn channel is 220-450 m/min, the fiber tows after the air deformation are sent to an oil roller to be oiled until the oil content of the fiber tows reaches 12-20%,
the oil product selected during oiling is dioctadecyl phthalate,
the oiled fiber tows are sent to a heat setting box for heat setting, the heat setting temperature is 230-240 ℃, the setting time is 10-25 min,
and (3) after the heat setting is finished, cleaning the fiber tows by using hot water, drying water stains, and cooling to normal temperature to obtain the regenerated ATY fiber with high filling power.
The beneficial effect of this application lies in: the fluffy ATY fiber is processed and manufactured by using the waste fiber tows as raw materials, so that the waste fiber is recycled, the cost is saved, and the pollution of the waste fiber to the environment is avoided.
In the processing technology, before the heat setting operation for eliminating the final stress, fiber tows are oiled, an oil product with higher melting point and boiling point is selected, the oiled oil product enters a heat setting box, although the heat setting temperature is higher, the oil product still keeps higher viscosity at the moment, so that the motion energy of fiber yarns adhered to the oil product can generate a more obvious limiting effect, the tendency that the fiber yarns restore to be straight again in the heat crystallization process is inhibited to a certain extent, the fluffy state and the structure of the ATY fiber are correspondingly kept, after the heat setting operation is finished, the fiber tows are washed by water, and because the oil product used before is insoluble in water, the washed mixture can stand for layering or precipitation, so that the recovered oil product can be reused,
meanwhile, because the heat setting link is reserved in the process, after the oiled fiber tows enter a hot environment and are stable, high temperature can still be transmitted to the fiber yarns (only because the heat conductivity of an oil product adhered to the surface of the fiber yarns is not ideal, the heat setting time is properly prolonged), and therefore, the internal stress in the fiber yarns can still be eliminated.
Drawings
FIG. 1 is a photograph of the regenerated ATY fiber obtained in example 1,
FIG. 2 is a photograph of the regenerated ATY fiber obtained in comparative example 1 (all the drawings are taken vertically with the lens downward after the fiber is laid flat, FIG. 2 is actually equal to FIG. 1 in the height of the shot, but the shot fiber has a large difference in appearance and size because the fiber strand in FIG. 1 has a good bulkiness, which makes the strand appear thicker, and the resulting fiber rope after twisting and combining is naturally thicker, while FIG. 2 has an unsatisfactory bulkiness and a fine strand, and therefore the fiber rope after combining according to the same twisting operation is naturally thinner as a whole),
FIG. 3 is a photograph of the regenerated ATY fiber obtained in example 2.
Detailed Description
Example 1
The raw material fiber adopts PET POY elastic fiber tows, the fineness of each strand of the tows is 150dtex, the fineness of single filaments in the tows is 5dtex,
(1) the raw material fiber tows in the embodiment are pre-stretched by 1.2 times at 115 ℃, then are subjected to heat treatment at 230 ℃ for 5min to finish primary heat setting, and then are cooled to the normal temperature (25 ℃, the same below);
(2) penetrating the fiber tows obtained in the step (1) into a filament inlet of a texturing nozzle, opening a compressed air valve, controlling the pressure of compressed air to be 0.75Mpa and the flow velocity of compressed air airflow to be 700m/s, blowing the fiber tows open and disorderly under the jetting action of the compressed air airflow to separate monofilaments in parallel, controlling the speed of the fiber tows to be 220m/min (the overfeed rate of the fiber tows to be 22%) when the fiber tows leave a filament channel outlet of the nozzle, turning at 90 degrees to generate curved arc rings, and intertwining among the fiber tows to form a certain network structure,
(3) the fiber tows obtained in the step (2) are sent to an oiling roller to be oiled until the oil content of the fiber tows reaches 14 percent (actually, the weight of oil on the fiber tows is divided by the total weight of the oiled fiber tows, the same is true below), the oiled oil is dioctadecyl phthalate,
(4) sending the fiber tows obtained in the step (3) to a heat setting box for heat setting for 20min at 240 ℃;
(5) immersing the fiber tows obtained in the step (4) into sufficient warm water (the water temperature is 48-52 ℃) for full washing, drying the fibers at 70 ℃, then sending the fibers to an oil roller again for oiling until the oil content of the fibers is 1.1% (because the oil content on the fibers is not convenient to accurately control in the actual washing operation, the fibers are subjected to one-time oiling operation after the fibers are subjected to the first full washing, the oil is not necessarily required to be dioctadecyl phthalate, and can be oil agents commonly used in the field, such as antistatic oil agent, lubricating oil and the like), and then the regenerated ATY fiber tows with high bulkiness are obtained,
twisting the obtained regenerated ATY fiber tows into a fiber rope, wherein the fiber rope is formed by twisting 5 fiber tows, and the appearance of the obtained fiber rope is shown in figure 1.
Comparative example 1
The same fiber tow as in example 1 was used as the starting fiber, and the oil product used in the oiling in example 1, dioctadecyl phthalate, was replaced with glycerol trilaurate:
(1) same as example 1, step (1);
(2) same as example 1, step (2);
(3) sending the fiber tows obtained in the step (2) to an oiling roller for oiling until the oil content of the fiber tows reaches 14 percent, wherein the oiled oil is trilaurin;
(4) same as example 1, step (4);
(5) same as example 1, step (5).
The regenerated ATY fiber tow obtained in comparative example 1 is twisted into a fiber rope according to the twisting operation of example 1, the shape of the obtained fiber rope is as shown in fig. 2, the filling power is obviously inferior to that of example 1, the viscosity of the oiling oil product is reduced, and the effect of limiting the movement of the fiber yarn in the high-temperature environment of heat setting is correspondingly reduced.
Example 2
The raw material fiber adopts PET DTY elastic fiber tows, the fineness of each strand of the tows is 80dtex, the fineness of single fibers in the tows is 2dtex,
(1) the raw material fiber tows in the embodiment are pre-stretched by 1.1 times at 110 ℃, then are subjected to heat treatment at 230 ℃ for 5min to finish primary heat setting, and then are cooled to the normal temperature (25 ℃, the same below);
(2) the fiber tows obtained in the step (1) penetrate into a filament inlet of a texturing nozzle, a compressed air valve is opened, the pressure of compressed air is controlled to be 0.62Mpa, the flow velocity of compressed air airflow is 590m/s, the fiber tows are blown open and blown disorderly under the jetting action of the compressed air airflow, so that monofilaments are separated in parallel, when the fiber tows leave a nozzle filament channel outlet, the speed is 340m/min (the overfeed rate of the fiber tows is controlled to be 22 percent), 90-degree turning is performed to generate a curved arc ring, and the fiber tows are intertwined to form a certain network structure,
(3) sending the fiber tows obtained in the step (2) to an oiling roller for oiling until the oil content of the fiber tows reaches 12 percent, wherein the oiled oil is dioctadecyl phthalate,
(4) sending the fiber tows obtained in the step (3) to a heat setting box for heat setting at 235 ℃ for 22 min;
(5) soaking the fiber tows obtained in the step (4) into sufficient warm water (the water temperature is 48-52 ℃) for full washing, drying the fibers at 70 ℃, then sending the fiber tows to an oil roller again for oiling until the oil content of the fiber tows is 0.9% (the oil is not necessarily dioctadecyl phthalate, and can be oil agent commonly used in the field), namely, the regenerated ATY fiber tows with high fluffiness are obtained,
twisting the obtained regenerated ATY fiber tows into a fiber rope, wherein the fiber rope is formed by twisting 10 fiber tows, and the appearance of the obtained fiber rope is shown in figure 3.
Claims (8)
1. A preparation method of an outdoor pre-spinning coloring regenerated ATY fiber with high filling power is characterized by comprising the following steps: the preparation method comprises the steps of pre-stretching, air deformation, oiling and heat setting of the raw material fiber in sequence.
2. The method for preparing high-bulk, outdoor, spun-dyed recycled ATY fiber according to claim 1, wherein the method comprises the steps of: the oil product selected for oiling is dioctadecyl phthalate.
3. The method for preparing high-bulk, outdoor, spun-dyed recycled ATY fiber according to claim 1, wherein the method comprises the steps of: the raw material fiber comprises one or more of PET POY elastic fiber, PET DTY elastic fiber, PBT POY elastic fiber, PBT DTY elastic fiber and nylon FDY elastic fiber.
4. The method for preparing high-bulk, outdoor, spun-dyed recycled ATY fiber according to claim 1, wherein the method comprises the steps of: the stretching temperature in the pre-stretching is 110-135 ℃, the pre-stretching multiple is 1.1-1.3 times,
and (3) preliminarily heat-setting the obtained fiber at 230-240 ℃ for 5-15 min after pre-stretching, then cooling to normal temperature, and then carrying out air deformation.
5. The method for preparing high-bulk, outdoor, spun-dyed recycled ATY fiber according to claim 1, wherein the method comprises the steps of: the air deformation operation is that the fiber tows penetrate into a filament inlet of a deformation nozzle, a compressed air valve is opened to enable compressed air flow to have a strong blowing effect on the fiber tows, and the fiber tows are turned when leaving a filament channel outlet of the nozzle,
the pressure intensity of the compressed air is 0.6-1.2 Mpa, the airflow velocity of the compressed air is 500-800 m/s, the overfeed rate of the air deformation operation on the fiber tows is 15-35%, the speed of the fiber tows leaving the nozzle yarn channel outlet is 220-450 m/min, and the fiber tows are turned by 90 degrees when leaving the nozzle yarn channel outlet.
6. The method for preparing high-bulk, outdoor, spun-dyed recycled ATY fiber according to claim 1, wherein the method comprises the steps of: and (3) sending the fiber tows after the air deformation to an oil roller, and oiling the fiber tows until the oil content of the fiber tows reaches 12-20%.
7. The method for preparing high-bulk, outdoor, spun-dyed recycled ATY fiber according to claim 1, wherein the method comprises the steps of: and sending the oiled fiber tows to a heat setting box for heat setting, wherein the heat setting temperature is 230-240 ℃, and the setting time is 10-25 min.
8. The method for preparing high-bulk, outdoor, spun-dyed recycled ATY fiber according to claim 1, wherein the method comprises the steps of: and after the heat setting is finished, cleaning the fiber tows by using hot water, drying water stains, and cooling to normal temperature.
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| CN202010330273.8A CN111560674B (en) | 2020-04-24 | 2020-04-24 | Preparation method of outdoor pre-spinning coloring regenerated ATY (atom transfer Y) fiber with high filling power |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717698A (en) * | 2022-05-06 | 2022-07-08 | 张云云 | Production method of high-bulkiness textured yarn |
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| CN114717698A (en) * | 2022-05-06 | 2022-07-08 | 张云云 | Production method of high-bulkiness textured yarn |
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