CN115305597A - Production process of composite cotton-like polyester filament yarn - Google Patents
Production process of composite cotton-like polyester filament yarn Download PDFInfo
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- CN115305597A CN115305597A CN202211083860.7A CN202211083860A CN115305597A CN 115305597 A CN115305597 A CN 115305597A CN 202211083860 A CN202211083860 A CN 202211083860A CN 115305597 A CN115305597 A CN 115305597A
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- polyester filament
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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
- D01F6/88—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
-
- 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
-
- 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
- D01F1/103—Agents inhibiting growth of microorganisms
-
- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Artificial Filaments (AREA)
Abstract
The invention discloses a production process of composite cotton-like effect polyester filament yarns. According to the invention, the fabric prepared by using the graphene multi-composite polyester filament has good antibacterial property on staphylococcus aureus, escherichia coli and candida albicans; and the heat preservation rate of the fabric made of the polyester filament yarn reaches 96.3%, and is greatly improved compared with the traditional cotton wool fabric (the heat preservation rate is 14% -22%). Therefore, the graphene modified multifunctional fine denier polyester filament yarn fabric has good heat preservation performance and also has a strong anti-mite effect; the graphene filament has a good far-infrared heating effect, is suitable for keeping warm, and can be used in extremely cold weather, so that the comfort and the convenience in wearing are improved. Therefore, the mechanical strength of the fabric in the production process is improved, the generation of cracks is reduced, the durability of the prepared fabric is improved, and the production and use cost is reduced.
Description
Technical Field
The invention belongs to the technical field of polyester filament yarns, and particularly relates to a production process of a composite cotton-like effect polyester filament yarn.
Background
Dacron has a wide range of applications and is used in a large number of articles of clothing and industry. The flame-retardant polyester has flame retardance and wide application range, and plays a plurality of roles in the field of protective clothing besides playing a non-replaceable role in industrial textiles, building interior, vehicle interior and the like. According to the national standard of flame-retardant protective clothing, the fire-retardant protective clothing is used by the departments of metallurgy, forestry, chemical industry, petroleum, fire fighting and the like. The polyester filament yarn is made of polyester. Terylene is an important variety in synthetic fibers and is the commodity name of polyester fibers in China.
However, when the common fabric made of the polyester filaments is worn, the warmth retention property of the fabric is not good enough, and the fabric cannot play a strong role in resisting cold when worn in severe cold weather.
Disclosure of Invention
The invention aims to: in order to solve the problems, a production process of the composite cotton-like effect polyester filament yarn is provided.
The technical scheme adopted by the invention is as follows: a production process of composite cotton-like effect polyester filament yarns comprises the following steps:
s1, taking 100-150 parts of graphene aerogel and 160-200 parts of PET slices, adding the PET slices into the graphene aerogel to obtain composite graphene polyester gel, and freeze-drying to obtain composite graphene PET slices;
s2, taking 100-150 parts of the graphene PET slices prepared in the step S1, pre-crystallizing the graphene PET slices,
s3, feeding the dried and crystallized high-shrinkage PET slices fed back in the step S2 into a screw extruder;
s4, filtering the raw materials extruded by the extruder in the step S3;
s5, spinning the filtered raw material in the step S4, adding the raw material into a spinning manifold, spraying the raw material from a mixed spinneret plate hole through the spinning manifold, and then drafting, sizing, winding and forming to obtain polyester filaments;
s6, adopting a method for reducing the stretching deformation temperature, the stretching ratio and the production speed to stretch and elasticize the polyester filament yarns in the step S5;
and S7, collecting, preserving and packaging the composite polyester filament yarn prepared in the step S6, and finishing the whole production process of the composite linen-like effect polyester filament yarn.
In a preferred embodiment, in step S2, the pre-crystallization temperature is 120 ℃, the pre-crystallization time is controlled to be 2.5 hours, the drying temperature is 180 ℃, and the drying time is controlled to be 2.5 hours.
In a preferred embodiment, in step S3, a JWM105/25 screw extruder manufactured by shanghai jinyu extrusion machinery manufacturing ltd is used.
In a preferred embodiment, in the step S4, the pressure before filtration is less than 16Mpa, the pressure during filtration is controlled to be constant at 8.1Mpa, and during filtration, the pressure is filtered by using a three-time filtration method, wherein the filter mesh of the filter used in the first filtration is 26 microns, and the filter mesh of the filter used in the second filtration is 22 microns; the filter mesh of the filter used in the third filtration was 18 μm.
In a preferred embodiment, in the step S4, a slow cooling heating device is used for the spinning beam.
In a preferred embodiment, in the step S5, the temperature during spinning is 284 to 288 ℃, the spinning speed is 2700 to 3000 r/min, the wind speed of the cooling air blow is 0.45 to 0.55m/S, the wind temperature is 24.0 to 24.8 ℃, the relative humidity is 72 to 78%, and the control pressure is constant between 11 and 12MPa.
In a preferred embodiment, in the step S6, the box temperature is set to 165 to 170 ℃, the draft ratio is 1.700 to 1.730, the texturing speed is 620 to 650m/min, and the D/Y ratio is 1.680 to 1.710.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, the fabric prepared by using the graphene multi-composite polyester filament has good antibacterial property on staphylococcus aureus, escherichia coli and candida albicans; and the heat preservation rate of the fabric made of the polyester filament yarn reaches 96.3%, and is greatly improved compared with the traditional cotton wool fabric (the heat preservation rate is 14% -22%). Therefore, the graphene modified multifunctional fine denier polyester filament yarn fabric has good heat retention performance and also has a strong anti-mite effect; the graphene filament has a good far-infrared heating effect, is suitable for keeping warm, and can be used in extremely cold weather, so that the comfort and the convenience in wearing are improved.
2. According to the invention, the stretching and texturing of the polyester filament yarn can keep the structure of the graphene modified polyester POY stable in the heating and stretching process, the draw ratio and the texturing speed can be reduced to reduce the false twisting tension of the strand silk, the smooth performance of texturing production is ensured, and the abnormal phenomena of broken filaments, broken ends, stiff filaments and the like are reduced, so that the mechanical strength of the fabric in the production process is improved, the generation of cracks is reduced, the durability of the prepared fabric is improved, and the production and use cost is reduced.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a production process of composite cotton-like effect polyester filament yarns comprises the following steps:
s1, taking 100 parts of graphene aerogel and 160 parts of PET slices, adding the PET slices into the graphene aerogel to obtain composite graphene polyester gel, and freeze-drying to obtain composite graphene PET slices;
s2, taking 100 parts of the graphene PET slices prepared in the step S1, and pre-crystallizing the graphene PET slices, wherein in the step S2, the pre-crystallizing temperature is 120 ℃, the pre-crystallizing time is controlled to be 2.5 hours, the drying temperature is 180 ℃, and the drying time is controlled to be 2.5 hours;
s3, feeding the dried and crystallized high-shrinkage PET slices fed back in the step S2 into a screw extruder; in the step S3, a JWM105/25 type screw extruder produced by Shanghai jin latitude extrusion machinery manufacturing company Limited is selected;
s4, filtering the raw materials extruded by the extruder in the step S3; in the step S4, the pressure before filtration is less than 16Mpa, the control pressure in the filtration process is constant to be 8.1Mpa, the filtration is carried out by using a three-time filtration method during filtration, the filter screen of the filter used in the first filtration is 26 microns, and the filter screen of the filter used in the second filtration is 22 microns; the filter screen of the filter used in the third filtration is 18 microns; in the step S4, a slow cooling heating device is adopted for the spinning manifold;
s5, spinning the filtered raw material in the step S4, adding the raw material into a spinning manifold, spraying the raw material from a mixed spinneret plate hole through the spinning manifold, and then drafting, sizing, winding and forming to obtain polyester filaments; in the step S5, the temperature during spinning is 284-288 ℃, the spinning speed is 2700-3000 r/min, the wind speed of cooling air blowing is 0.45-0.55 m/S, the wind temperature is 24.0-24.8 ℃, the relative humidity is 72-78%, and the constant pressure is controlled to be 11-12 Mpa;
s6, stretching and elasticizing the polyester filaments in the step S5 by adopting a method for reducing the stretching deformation temperature, the stretching ratio and the production speed; in the step S6, the temperature of the box is set to be 165-170 ℃, the draft ratio is 1.700-1.730, the elasticizing speed is 620-650 m/min, and the D/Y ratio is 1.680-1.710;
s7, collecting, preserving and packaging the composite polyester filament yarn prepared in the step S6, and finishing the whole production process of the composite linen-like effect polyester filament yarn; according to the invention, the fabric prepared by using the graphene multi-composite polyester filament has good antibacterial property on staphylococcus aureus, escherichia coli and candida albicans; and the heat preservation rate of the fabric made of the polyester filament yarn reaches 96.3%, and is greatly improved compared with the traditional cotton wool fabric (the heat preservation rate is 14% -22%). Therefore, the graphene modified multifunctional fine denier polyester filament yarn fabric has good heat preservation performance and also has a strong anti-mite effect; the graphene filament has a good far-infrared heating effect, is suitable for keeping warm, and can be used in extremely cold weather, so that the comfort and the convenience in wearing are improved. The structure of the graphene modified polyester POY can be kept stable in the heating and stretching process, the draw ratio and the texturing speed are reduced, the false twisting tension of the filament can be reduced, the smooth texturing production is ensured, and the abnormal phenomena of broken filaments, broken ends, stiff filaments and the like are reduced, so that the mechanical strength of the fabric in the production process is improved, the breakage is reduced, the durability of the prepared fabric is improved, and the production and use cost is reduced.
The second embodiment:
a production process of composite cotton-like effect polyester filament yarns comprises the following steps:
s1, taking 150 parts of graphene aerogel and 180 parts of PET slices, adding the PET slices into the graphene aerogel to obtain composite graphene polyester gel, and freeze-drying to obtain composite graphene PET slices;
s2, taking 150 parts of the graphene PET slices prepared in the step S1, and performing pre-crystallization treatment on the graphene PET slices, wherein in the step S2, the pre-crystallization temperature is 120 ℃, the pre-crystallization time is controlled to be 2.5 hours, the drying temperature is 180 ℃, and the drying time is controlled to be 2.5 hours;
s3, feeding the dried and crystallized high-shrinkage PET slices fed back in the step S2 into a screw extruder; in the step S3, a JWM105/25 type screw extruder produced by Shanghai jin latitude extrusion machinery manufacturing company Limited is selected;
s4, filtering the raw materials extruded by the extruder in the step S3; in the step S4, the pressure before filtration is less than 16Mpa, the control pressure in the filtration process is constant to be 8.1Mpa, the filtration is carried out by using a three-time filtration method during filtration, the filter screen of the filter used in the first filtration is 26 microns, and the filter screen of the filter used in the second filtration is 22 microns; the filter screen of the filter used in the third filtration is 18 microns; in the step S4, a slow cooling heating device is adopted for the spinning manifold;
s5, spinning the filtered raw material in the step S4, adding the raw material into a spinning manifold, spraying the raw material from holes of a mixed spinneret plate through the spinning manifold, and then drafting, sizing, winding and forming to obtain polyester filaments; in the step S5, the temperature during spinning is 284-288 ℃, the spinning speed is 2700-3000 r/min, the wind speed of cooling air blowing is 0.45-0.55 m/S, the wind temperature is 24.0-24.8 ℃, the relative humidity is 72-78%, and the constant pressure is controlled to be 11-12 Mpa;
s6, adopting a method for reducing the stretching deformation temperature, the stretching ratio and the production speed to stretch and elasticize the polyester filament yarns in the step S5; in the step S6, the temperature of the box is set to be 165-170 ℃, the drafting ratio is 1.700-1.730, the elasticizing speed is 620-650 m/min, and the D/Y ratio is 1.680-1.710;
s7, collecting, preserving and packaging the composite polyester filament yarn prepared in the step S6, and finishing the whole production process of the composite linen-like effect polyester filament yarn; according to the invention, the fabric prepared by using the graphene multi-composite polyester filament has good antibacterial property on staphylococcus aureus, escherichia coli and candida albicans; and the heat preservation rate of the fabric made of the polyester filament yarn reaches 96.3%, and is greatly improved compared with the traditional cotton wool fabric (the heat preservation rate is 14% -22%). Therefore, the graphene modified multifunctional fine denier polyester filament yarn fabric has good heat preservation performance and also has a strong anti-mite effect; the graphene filament has a good far-infrared heating effect, is suitable for keeping warm, and can be used in extremely cold weather, so that the comfort and the convenience in wearing are improved. The structure of the graphene modified polyester POY can be kept stable in the heating and stretching process, the draw ratio and the texturing speed can be reduced, the false twisting tension of the yarn strips can be reduced, the texturing production can be smoothly carried out, and abnormal phenomena such as broken yarns, broken ends, stiff yarns and the like are reduced, so that the mechanical strength of the fabric in the production process is improved, the breakage is reduced, the durability of the prepared fabric is improved, and the production and use cost is reduced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A production process of composite cotton-like effect polyester filament yarn is characterized by comprising the following steps: the production process of the composite cotton-like effect polyester filament yarn comprises the following steps:
s1, taking 100-150 parts of graphene aerogel and 160-200 parts of PET slices, adding the PET slices into the graphene aerogel to obtain composite graphene polyester gel, and freeze-drying to obtain composite graphene PET slices;
s2, taking 100-150 parts of the graphene PET slices prepared in the step S1, performing pre-crystallization treatment on the graphene PET slices,
s3, feeding the dried and crystallized high-shrinkage PET slice feed back in the step S2 into a screw extruder;
s4, filtering the raw materials extruded by the extruder in the step S3;
s5, spinning the filtered raw material in the step S4, adding the raw material into a spinning manifold, spraying the raw material from a mixed spinneret plate hole through the spinning manifold, and then drafting, sizing, winding and forming to obtain polyester filaments;
s6, adopting a method for reducing the stretching deformation temperature, the stretching ratio and the production speed to stretch and elasticize the polyester filament yarns in the step S5;
and S7, collecting, preserving and packaging the composite polyester filament yarn prepared in the step S6, and finishing the whole production process of the composite linen-like effect polyester filament yarn.
2. The production process of the composite cotton-like effect polyester filament yarn as claimed in claim 1, wherein the production process comprises the following steps: in the step S2, the pre-crystallization temperature is 120 ℃, the pre-crystallization time is controlled to be 2.5 hours, the drying temperature is 180 ℃, and the drying time is controlled to be 2.5 hours.
3. The production process of the composite cotton-like effect polyester filament yarn as claimed in claim 1, wherein the production process comprises the following steps: in the step S3, a JWM105/25 type screw extruder produced by Shanghai jin latitude extrusion machinery manufacturing company Limited is selected.
4. The production process of the composite cotton-like effect polyester filament yarn as claimed in claim 1, wherein the production process comprises the following steps: in the step S4, the pressure before filtration is less than 16Mpa, the control pressure in the filtration process is constant and is 8.1Mpa, the filter is filtered by using a three-time filtration method during filtration, the filter screen of the filter used during the first filtration is 26 microns, and the filter screen of the filter used during the second filtration is 22 microns; the third filtration was carried out using a filter having a mesh size of 18 μm.
5. The production process of the composite cotton-like effect polyester filament yarn as claimed in claim 1, wherein the production process comprises the following steps: in the step S4, the spinning manifold adopts a slow cooling heating device.
6. The production process of the composite cotton-like effect polyester filament yarn as claimed in claim 1, wherein the production process comprises the following steps: in the step S5, the temperature during spinning is 284-288 ℃, the spinning speed is 2700-3000 r/min, the wind speed of cooling air blowing is 0.45-0.55 m/S, the wind temperature is 24.0-24.8 ℃, the relative humidity is 72-78%, and the constant pressure is controlled to be 11-12 Mpa.
7. The production process of the composite cotton-like effect polyester filament yarn as claimed in claim 1, wherein the production process comprises the following steps: in the step S6, the temperature of the box is set to be 165-170 ℃, the draft ratio is 1.700-1.730, the elasticizing speed is 620-650 m/min, and the D/Y ratio is 1.680-1.710.
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