CN115044991A - Preparation method of zinc ion antibacterial fine denier polyester yarn and polyester yarn - Google Patents
Preparation method of zinc ion antibacterial fine denier polyester yarn and polyester yarn Download PDFInfo
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- CN115044991A CN115044991A CN202210729482.9A CN202210729482A CN115044991A CN 115044991 A CN115044991 A CN 115044991A CN 202210729482 A CN202210729482 A CN 202210729482A CN 115044991 A CN115044991 A CN 115044991A
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- zinc ion
- ion antibacterial
- slices
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- master batch
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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
- 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
- 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
- D01D5/08—Melt spinning methods
- D01D5/096—Humidity control, or oiling, of 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
- D01D5/253—Formation of filaments, threads, or the like with a non-circular cross section; 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
- 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
Abstract
The invention relates to a preparation method of zinc ion antibacterial fine denier polyester yarns, which comprises the following steps: melting and extruding the PET slices and the zinc ion antibacterial master batch slices according to a certain proportion to obtain a mixture melt; slicing the zinc ion antibacterial master batch, and performing melt extrusion to obtain a zinc ion antibacterial master batch melt; extruding the two melts into different spinning boxes, and then adjusting the melt flow and the number of monofilaments to discharge filaments; carrying out air cooling treatment, bundling and oiling on the tows; winding to obtain POY yarn; the POY yarn is balanced, elasticated, drawn and wound into a tube. The zinc ion antibacterial master batch slices are added into the PET slices, so that the product is endowed with an antibacterial effect; the mixture melt and the zinc ion antibacterial master batch melt are extruded into different spinning boxes, the melt flow and the number of monofilaments are adjusted according to different yarn specifications to perform filament discharge, so that a plurality of micro gaps are formed among the microfibers, the fabric is endowed with extremely strong moisture absorption and moisture permeability, and the defects of no water absorption and air impermeability of chemical fiber fabrics are effectively overcome.
Description
Technical Field
The invention relates to the technical field of fine denier polyester yarns, in particular to a preparation method of zinc ion antibacterial fine denier polyester yarns and the zinc ion antibacterial fine denier polyester yarns.
Background
The fine denier polyester yarn has the characteristics of large specific surface area, high porosity, low monofilament linear density and the like, so that the prepared fabric has extremely strong moisture absorption and air permeability, excellent colorability, and soft and exquisite hand feeling. The fabric has wide application in fashion fabrics, home textile fabrics and cleaning fabrics. In recent years, the production technology of fine denier polyester yarn has been rapidly developed, and the fiber with the monofilament diameter of 250nm can be spun by Hills company by adopting a melt spinning method at present.
However, the existing fine denier polyester yarn is mainly a conventional variety with a circular section, so that the moisture absorption and quick drying performance of the existing fine denier polyester yarn is poor, and the existing fine denier polyester yarn does not have antibacterial performance.
Therefore, the prior art has a larger improvement space.
Disclosure of Invention
The invention aims to make up the defects of the prior art and provides a preparation method of fine denier polyester yarns and the fine denier polyester yarns.
In order to achieve the purpose, the invention provides a preparation method of zinc ion antibacterial fine denier polyester yarns, which comprises the following steps:
(1) carrying out pre-crystallization treatment on the PET slices at high temperature;
(2) respectively drying the pre-crystallized PET slices and the zinc ion antibacterial master batch slices;
(3) feeding the PET slices and the zinc ion antibacterial master batch slices into a first screw extruder according to a certain proportion for melt extrusion to obtain a mixture melt;
(4) feeding the zinc ion antibacterial master batch slices into a second screw extruder for melt extrusion to obtain a zinc ion antibacterial master batch melt;
(5) extruding the mixture melt and the zinc ion antibacterial master batch melt into different spinning boxes, and then adjusting the melt flow and the number of monofilaments according to different yarn specifications to discharge yarns;
(6) carrying out air cooling treatment on the filament bundles after the filament discharge, and then bundling and oiling the filament bundles through an oil nozzle;
(7) winding the tows to obtain POY yarns;
(8) and balancing the POY yarns in balance, performing elasticizing drafting, and winding into a bobbin to obtain the fine denier polyester yarns.
According to the scheme, the high temperature in the step (1) is 160-170 ℃, and the time for pre-crystallization in the step (1) is 10-20 min; the drying process of the PET slices and the zinc ion antibacterial master batch slices in the step (2) is as follows: the drying temperature is 160-170 ℃, and the drying time is 4-8 h.
According to the scheme, the screw pressure of the first screw extruder in the step (3) is 11 +/-2 Mp, and the temperatures of all the zones are 275 +/-5 ℃, 280 +/-5 ℃, 285 +/-3 ℃ and 290 +/-3 ℃ from the inlet to the outlet.
According to the scheme, the screw pressure of the second screw extruder in the step (4) is 11 +/-2 Mp, and the temperatures of all the zones are 255 +/-5 ℃, 260 +/-3 ℃, 265 +/-3 ℃ and 270 +/-3 ℃ from the inlet to the outlet.
According to the scheme, the adding amount of the zinc ion antibacterial master batch slices in the step (3) is 0.8-1 wt% of the PET slices.
According to the scheme, the air cooling treatment process in the step (6) comprises the following steps: the wind speed is 0.2-0.5 m/min, the humidity is 70-80%, and the temperature is 20-25 ℃.
According to the scheme, the temperature of the balance in the step (8) is 20-25 ℃, and the humidity is 70-80%.
According to the scheme, the cross section of the POY yarn is in a cross shape.
According to the above solution, the yarn gauge comprises 75D/96F.
In addition, in order to achieve the purpose, the invention also provides zinc ion antibacterial fine denier polyester yarns, which are prepared by adopting the method.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, zinc ion antibacterial master batch slices are added into PET slices, so that the product has an excellent and lasting antibacterial effect from the material end; the mixture melt and the zinc ion antibacterial master batch melt are extruded into different spinning boxes, and then the melt flow and the number of monofilaments are adjusted according to different yarn specifications to perform filament discharging, so that a plurality of micro gaps are formed among the microfibers, the fabric has extremely strong moisture absorption, moisture permeability and air permeability, and the defects of no water absorption and air impermeability of chemical fiber fabrics are effectively overcome.
Drawings
FIG. 1 is a transverse section of the zinc ion antibacterial fine denier polyester yarn of the invention;
fig. 2 is a longitudinal section of the zinc ion antibacterial fine denier polyester yarn of the invention.
Detailed Description
The present invention will be described in further detail with reference to examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Example 1
A preparation method of zinc ion antibacterial fine denier polyester yarns comprises the following steps:
(1) pre-crystallizing the PET slices at 160 ℃ for 10min to increase the softening temperature of the slices and prevent the slices from caking during drying;
(2) respectively putting the pre-crystallized PET slices and the zinc ion antibacterial master batch slices into different drying towers for drying treatment; the drying treatment process comprises the following steps: the drying temperature is 160 ℃, and the drying time is 4 hours;
(3) feeding the PET slices and the zinc ion antibacterial master batch slices into a first screw extruder according to a certain proportion for melt extrusion to obtain a mixture melt; the screw pressure of the first screw extruder is 11 +/-2 Mp, and the temperatures of all the zones are 275 +/-5 ℃, 280 +/-5 ℃, 285 +/-3 ℃ and 290 +/-3 ℃ in sequence from the inlet to the outlet; the adding amount of the zinc ion antibacterial master batch slices is 1.5 percent of that of the PET slices;
(4) feeding the zinc ion antibacterial master batch slices into a second screw extruder for melt extrusion to obtain a zinc ion antibacterial master batch melt; the screw pressure of the second screw extruder is 11 +/-2 Mp, and the temperatures of all the zones are 255 +/-5 ℃, 260 +/-3 ℃, 265 +/-3 ℃ and 270 +/-3 ℃ in sequence from the inlet to the outlet;
(5) extruding the mixture melt and the zinc ion antibacterial master batch melt into different spinning boxes, and then adjusting the melt flow and the number of monofilaments according to different yarn specifications to discharge yarns;
(6) carrying out air cooling treatment on the filament bundles after the filament discharge, and then bundling and oiling the filament bundles through an oil nozzle; the air cooling treatment process comprises the following steps: the wind speed is 0.2m/min, the humidity is 70 percent, and the temperature is 20 ℃;
(7) winding the tows to obtain POY yarns;
(8) the POY yarn is balanced in balance, and then is subjected to elasticizing drafting and is wound into a bobbin to obtain fine denier polyester yarn; the temperature between the balances was 20 ℃ and the humidity was 70%.
Further, as shown in fig. 1-2, the cross section of the POY filament is cross-shaped. The cross-section of the POY yarn is formed into a cross shape by using a spinneret plate having a cross shape.
Further, the yarn gauge includes 75D/96F.
Example 2
A preparation method of zinc ion antibacterial fine denier polyester yarns comprises the following steps:
(1) pre-crystallizing the PET slices at 165 ℃ for 15min to improve the softening temperature of the slices and prevent the slices from caking during drying;
(2) respectively putting the pre-crystallized PET slices and the zinc ion antibacterial master batch slices into different drying towers for drying treatment; the drying treatment process comprises the following steps: the drying temperature is 165 ℃, and the drying time is 6 hours;
(3) feeding the PET slices and the zinc ion antibacterial master batch slices into a first screw extruder according to a certain proportion for melt extrusion to obtain a mixture melt; the screw pressure of the first screw extruder is 11 +/-2 Mp, and the temperatures of all the zones are 275 +/-5 ℃, 280 +/-5 ℃, 285 +/-3 ℃ and 290 +/-3 ℃ in sequence from the inlet to the outlet; the adding amount of the zinc ion antibacterial master batch slices is 1.8 percent of that of the PET slices;
(4) feeding the zinc ion antibacterial master batch slices into a second screw extruder for melt extrusion to obtain a zinc ion antibacterial master batch melt; the screw pressure of the second screw extruder is 11 +/-2 Mp, and the temperatures of all the zones are 255 +/-5 ℃, 260 +/-3 ℃, 265 +/-3 ℃ and 270 +/-3 ℃ in sequence from the inlet to the outlet;
(5) extruding the mixture melt and the zinc ion antibacterial master batch melt into different spinning boxes, and then adjusting the melt flow and the number of monofilaments according to different yarn specifications to discharge yarns;
(6) carrying out air cooling treatment on the filament bundles after filament discharge, and then bundling and oiling through a nozzle; the air cooling treatment process comprises the following steps: the wind speed is 0.4m/min, the humidity is 75 percent and the temperature is 23 ℃;
(7) winding the tows to obtain POY yarns;
(8) the POY yarn is balanced in balance, and then is subjected to elasticizing drafting and is wound into a bobbin to obtain fine denier polyester yarn; the temperature between balances was 23 ℃ and the humidity was 75%.
Further, as shown in fig. 1-2, the cross section of the POY filament is cross-shaped. The cross-section of the POY yarn is formed into a cross shape by using a spinneret plate having a cross shape.
Further, the yarn gauge includes 75D/96F.
Example 3
A preparation method of zinc ion antibacterial fine denier polyester yarns comprises the following steps:
(1) pre-crystallizing the PET slices at 170 ℃ for 20min to increase the softening temperature of the slices and prevent the slices from caking during drying;
(2) respectively putting the pre-crystallized PET slices and the zinc ion antibacterial master batch slices into different drying towers for drying treatment; the drying treatment process comprises the following steps: the drying temperature is 170 ℃, and the drying time is 8 hours;
(3) feeding the PET slices and the zinc ion antibacterial master batch slices into a first screw extruder according to a certain proportion for melt extrusion to obtain a mixture melt; the screw pressure of the first screw extruder is 11 +/-2 Mp, and the temperatures of all the zones are 275 +/-5 ℃, 280 +/-5 ℃, 285 +/-3 ℃ and 290 +/-3 ℃ in sequence from the inlet to the outlet; the adding amount of the zinc ion antibacterial master batch slices is 2 percent of that of the PET slices;
(4) feeding the zinc ion antibacterial master batch slices into a second screw extruder for melt extrusion to obtain a zinc ion antibacterial master batch melt; the screw pressure of the second screw extruder is 11 +/-2 Mp, and the temperatures of all the zones are 255 +/-5 ℃, 260 +/-3 ℃, 265 +/-3 ℃ and 270 +/-3 ℃ in sequence from the inlet to the outlet;
(5) extruding the mixture melt and the zinc ion antibacterial master batch melt into different spinning boxes, and then adjusting the melt flow and the number of monofilaments according to different yarn specifications to discharge yarns;
(6) carrying out air cooling treatment on the filament bundles after the filament discharge, and then bundling and oiling the filament bundles through an oil nozzle; the air cooling treatment process comprises the following steps: the wind speed is 0.5m/min, the humidity is 80 percent, and the temperature is 25 ℃;
(7) winding the tows to obtain POY yarns;
(8) the POY yarn is balanced in balance, and then is subjected to elasticizing drafting and is wound into a bobbin to obtain fine denier polyester yarn; the temperature between the balances was 25 ℃ and the humidity was 80%.
Further, as shown in fig. 1-2, the cross section of the POY filament is cross-shaped. The cross-section of the POY yarn is formed into a cross shape by using a spinneret plate having a cross shape.
Further, the yarn gauge includes 75D/96F.
Comparative example 1
A method for preparing zinc ion antibacterial fine denier polyester yarns, which is basically the same as that in example 3, except that the cross section of the POY yarns is circular.
Comparative example 2
A preparation method of zinc ion antibacterial fine denier polyester yarns comprises the following steps:
(1) pre-crystallizing the PET slices at 170 ℃ for 20min to increase the softening temperature of the slices and prevent the slices from caking during drying;
(2) putting the pre-crystallized PET slices into a drying tower for drying; the drying treatment process comprises the following steps: the drying temperature is 170 ℃, and the drying time is 8 hours;
(3) feeding the PET slices into a screw extruder to carry out melt extrusion to obtain a PET melt; the screw pressure of the screw extruder is 11 +/-2 Mp, and the temperatures of all the zones are 275 +/-5 ℃, 280 +/-5 ℃, 285 +/-3 ℃ and 290 +/-3 ℃ in sequence from the inlet to the outlet;
(4) extruding the PET melt into a spinning manifold, and then adjusting the melt flow and the number of monofilaments according to different yarn specifications to discharge yarns;
(6) carrying out air cooling treatment on the filament bundles after the filament discharge, and then bundling and oiling the filament bundles through an oil nozzle; the air cooling treatment process comprises the following steps: the wind speed is 0.5m/min, the humidity is 80 percent, and the temperature is 25 ℃;
(7) winding the tows to obtain POY yarns;
(8) the POY yarn is balanced in balance, and then is subjected to elasticizing drafting and is wound into a bobbin to obtain fine denier polyester yarn; the temperature between the balances was 25 ℃ and the humidity was 80%.
Further, as shown in fig. 1-2, the cross section of the POY filament is cross-shaped. The cross-section of the POY yarn is formed into a cross shape by using a spinneret plate having a cross shape.
Further, the yarn gauge includes 75D/96F.
The main performance test results of the fine denier polyester yarns prepared in the above examples 1-3 and comparative examples 1-2 are shown in the following table 1:
TABLE 1
Evaluation of textile antibacterial properties according to GB/T20944.1-2007, section 1: the antibacterial effect test of staphylococcus aureus and escherichia coli is carried out on the fine denier polyester yarns prepared in the examples and the comparative examples by the agar plate method; the cleaned antibacterial effect is that the fine denier polyester yarns are cleaned according to a cleaning method in FZ/T73023-2006 washing experimental method of antibacterial knitted fabric appendix C antibacterial knitted fabric sample, and the antibacterial effect is tested after 100 times of cleaning.
The fine denier polyester yarns prepared in the examples and the comparative examples were placed in a constant temperature and humidity environment (60 ℃, relative humidity 90%), initial weight was measured (recorded as W1), and the weight was weighed after 3 hours (recorded as W2). The moisture absorption rate (W%) of each sample was calculated according to the formula W% (W2-W1)/W1 × 100%.
The results in table 1 show that the zinc ion antibacterial fine denier polyester yarn prepared by the preparation method of the invention has excellent and long-acting antibacterial property and excellent hygroscopicity.
The above description is only a preferred embodiment of the present invention, and all equivalent changes or modifications of the structure, characteristics and principles described in the present invention are included in the scope of the present invention.
Claims (10)
1. A preparation method of zinc ion antibacterial fine denier polyester yarns is characterized by comprising the following steps:
(1) carrying out pre-crystallization treatment on the PET slices at high temperature;
(2) respectively drying the pre-crystallized PET slices and the zinc ion antibacterial master batch slices;
(3) feeding the PET slices and the zinc ion antibacterial master batch slices into a first screw extruder in proportion for melt extrusion to obtain a mixture melt;
(4) feeding the zinc ion antibacterial master batch slices into a second screw extruder for melt extrusion to obtain a zinc ion antibacterial master batch melt;
(5) extruding the mixture melt and the zinc ion antibacterial master batch melt into different spinning boxes, and then adjusting the melt flow and the number of monofilaments according to different yarn specifications to discharge yarns;
(6) carrying out air cooling treatment on the filament bundles after the filament discharge, and then bundling and oiling the filament bundles through an oil nozzle;
(7) winding the tows to obtain POY yarns;
(8) and balancing the POY yarns in balance, performing elasticizing drafting, and winding into a bobbin to obtain the fine denier polyester yarns.
2. The method for preparing the zinc ion antibacterial fine denier polyester filament as claimed in claim 1, wherein the high temperature in step (1) is 160-170 ℃, and the time for pre-crystallization in step (1) is 10-20 min; the drying process of the PET slices and the zinc ion antibacterial master batch slices in the step (2) is as follows: the drying temperature is 160-170 ℃, and the drying time is 4-8 h.
3. The method for preparing zinc ion antibacterial fine denier polyester yarn according to claim 1, wherein the screw pressure of the first screw extruder in step (3) is 11 ± 2Mp, and the temperatures of the zones are 275 ± 5 ℃, 280 ± 5 ℃, 285 ± 3 ℃ and 290 ± 3 ℃ in sequence from the inlet to the outlet.
4. The method for preparing the fine denier polyester yarn as claimed in claim 1, wherein the screw pressure of the second screw extruder in the step (4) is 11 ± 2Mp, and the temperatures of the zones are 255 ± 5 ℃, 260 ± 3 ℃, 265 ± 3 ℃ and 270 ± 3 ℃ in sequence from the inlet to the outlet.
5. The preparation method of the zinc ion antibacterial fine denier polyester yarn as claimed in claim 1, wherein the addition amount of the zinc ion antibacterial masterbatch slices in the step (3) is 1.5-2% of that of the PET slices.
6. The preparation method of the fine denier polyester yarn as claimed in claim 1, wherein the air cooling treatment process in the step (6) is as follows: the wind speed is 0.2-0.5 m/min, the humidity is 70-80%, and the temperature is 20-25 ℃.
7. The method for preparing the zinc ion antibacterial fine denier polyester yarn as claimed in claim 1, wherein the temperature between balances in step (8) is 20-25 ℃ and the humidity is 70-80%.
8. The method for preparing the zinc ion antibacterial fine denier polyester yarn as claimed in claim 1, wherein the cross section of the POY yarn is cross-shaped.
9. The method of claim 1, wherein the yarn gauge comprises 75D/96F.
10. The zinc ion antibacterial fine denier polyester yarn is characterized in that the fine denier polyester yarn is prepared by the method according to any one of claims 1 to 9.
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| CN213172777U (en) * | 2020-01-11 | 2021-05-11 | 利郎(中国)有限公司 | Antibacterial fabric with soft gloss |
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