Disclosure of Invention
Based on the technical problems in the background art, the invention provides a preparation method of a moisture-absorbing sweat-releasing radiation-proof polyester fabric.
The technical scheme of the invention is as follows:
a preparation method of moisture-absorbing sweat-releasing radiation-proof polyester fabric comprises the following steps:
A. grinding the PET slices, sieving the ground PET slices with a 80-mesh sieve, and taking undersize products to obtain polyester powder;
B. carrying out vacuum pre-crystallization drying treatment on polyester powder and micro-nano calcium carbonate;
C. mixing the dried polyester powder and the micro-nano calcium carbonate by a double screw, cooling and granulating to obtain moisture-absorbing polyester fiber master batches;
D. uniformly mixing 3-8% of moisture-absorbing polyester fiber master batch with polyester chips by weight ratio, melting by a screw extruder, statically mixing, filtering, metering by a box metering pump, extruding by a C-shaped hollow spinneret plate, and quenching by asymmetric ring blowing strong wind to obtain nascent fiber;
E. then drawing, heat setting, washing, drying and winding the nascent fiber to obtain the moisture absorption polyester fiber;
F. the stainless steel wires are wrapped and wound on the moisture absorption polyester fibers to serve as warps, the weft stainless steel wires serve as wefts, and the warps and the wefts are interwoven to form the moisture absorption and sweat releasing radiation protection polyester fabric.
Preferably, in the step B, the particle size of the micro-nano calcium carbonate is 800-1500 nm.
Preferably, in the step B, the mass ratio of the polyester powder to the micro-nano calcium carbonate is (50-120): 1.
preferably, in the step B, the process conditions of the vacuum pre-crystallization drying treatment are as follows: the vacuum degree is less than 0.1-0.3MPa, the temperature is 85-95 ℃, the temperature is kept for 2-3h, and then the temperature is raised by 8-10 ℃ in turn every hour until 130-;
preferably, in the step D, the spinning temperature is 265-.
Preferably, in the step E, the draft ratio after the draft is 4 to 5 times.
Preferably, in the step F, the weight percentage of the stainless steel wires in the moisture-absorbing sweat-releasing radiation-proof polyester fabric is 15-30%.
The invention has the advantages that: the preparation method of the moisture-absorbing sweat-releasing radiation-proof polyester fabric comprises the following steps: grinding and sieving the PET slices to obtain polyester powder; carrying out vacuum pre-crystallization drying on polyester powder and micro-nano calcium carbonate; then carrying out double-screw mixing, cooling and granulating to obtain moisture-absorbing polyester fiber master batches; uniformly mixing the moisture-absorbing polyester fiber master batch and polyester chips, and spinning through a C-shaped hollow spinneret plate to obtain nascent fiber; then drawing, heat setting, washing, drying and winding the nascent fiber to obtain the moisture absorption polyester fiber; the stainless steel wires are wrapped and wound on the moisture absorption polyester fibers to serve as warps, the weft stainless steel wires serve as wefts, and the warps and the wefts are interwoven to form the moisture absorption and sweat releasing radiation protection polyester fabric. According to the moisture-absorbing sweat-releasing radiation-proof polyester fabric, the polyester fibers are modified by adopting the micro-nano calcium carbonate and are spun by adopting the C-shaped hollow spinneret plate, so that the obtained three-dimensional spiral curled hollow polyester fibers are good in moisture-absorbing sweat-releasing effect; and the radiation-proof fabric is obtained by adopting a mode of coating the stainless steel wires with the polyester fibers and blending.
Detailed Description
Example 1
A preparation method of moisture-absorbing sweat-releasing radiation-proof polyester fabric comprises the following steps:
A. grinding the PET slices, sieving the ground PET slices with a 80-mesh sieve, and taking undersize products to obtain polyester powder;
B. carrying out vacuum pre-crystallization drying treatment on polyester powder and micro-nano calcium carbonate;
C. mixing the dried polyester powder and the micro-nano calcium carbonate by a double screw, cooling and granulating to obtain moisture-absorbing polyester fiber master batches;
D. uniformly mixing 6% of moisture-absorbing polyester fiber master batch with polyester chips by weight ratio, melting by a screw extruder, statically mixing, filtering, metering by a box metering pump, extruding by a C-shaped hollow spinneret plate, and quenching by asymmetric circular blowing strong wind to obtain nascent fiber;
E. then drawing, heat setting, washing, drying and winding the nascent fiber to obtain the moisture absorption polyester fiber;
F. the stainless steel wires are wrapped and wound on the moisture absorption polyester fibers to serve as warps, the weft stainless steel wires serve as wefts, and the warps and the wefts are interwoven to form the moisture absorption and sweat releasing radiation protection polyester fabric.
In the step B, the particle size of the micro-nano calcium carbonate is 800-1500 nm; the mass ratio of the polyester powder to the micro-nano calcium carbonate is 75: 1.
in the step B, the process conditions of the vacuum pre-crystallization drying treatment are as follows: keeping the temperature at 87 ℃ for 2.5h under the vacuum degree of less than 0.2MPa, and then sequentially increasing the temperature by 8.5 ℃ per hour until the temperature reaches 131 ℃;
in the step D, the spinning temperature is 270 ℃.
In the step E, the draft ratio after the draft is 4.5 times.
In the step F, the weight percentage of the stainless steel wires in the moisture absorption and sweat releasing radiation protection terylene fabric is 23%.
Example 2
A preparation method of moisture-absorbing sweat-releasing radiation-proof polyester fabric comprises the following steps:
A. grinding the PET slices, sieving the ground PET slices with a 80-mesh sieve, and taking undersize products to obtain polyester powder;
B. carrying out vacuum pre-crystallization drying treatment on polyester powder and micro-nano calcium carbonate;
C. mixing the dried polyester powder and the micro-nano calcium carbonate by a double screw, cooling and granulating to obtain moisture-absorbing polyester fiber master batches;
D. uniformly mixing moisture-absorbing polyester fiber master batches and polyester slices according to the weight ratio of 3%, melting by a screw extruder, statically mixing, filtering, metering by a box metering pump, extruding by a C-shaped hollow spinneret plate, and quenching by asymmetric circular blowing strong wind to obtain nascent fiber;
E. then drawing, heat setting, washing, drying and winding the nascent fiber to obtain the moisture absorption polyester fiber;
F. the stainless steel wires are wrapped and wound on the moisture absorption polyester fibers to serve as warps, the weft stainless steel wires serve as wefts, and the warps and the wefts are interwoven to form the moisture absorption and sweat releasing radiation protection polyester fabric.
In the step B, the particle size of the micro-nano calcium carbonate is 800-1500 nm; the mass ratio of the polyester powder to the micro-nano calcium carbonate is 120: 1.
in the step B, the process conditions of the vacuum pre-crystallization drying treatment are as follows: keeping the temperature at 95 ℃ for 2h under the vacuum degree of less than 0.1MPa, and then sequentially increasing the temperature by 10 ℃ per hour until the temperature reaches 130 ℃;
in the step D, the spinning temperature is 285 ℃.
In the step E, the draft ratio after the draft is 4 times.
In the step F, the weight percentage of the stainless steel wires in the moisture absorption and sweat releasing radiation protection terylene fabric is 30%.
Example 3
A preparation method of moisture-absorbing sweat-releasing radiation-proof polyester fabric comprises the following steps:
A. grinding the PET slices, sieving the ground PET slices with a 80-mesh sieve, and taking undersize products to obtain polyester powder;
B. carrying out vacuum pre-crystallization drying treatment on polyester powder and micro-nano calcium carbonate;
C. mixing the dried polyester powder and the micro-nano calcium carbonate by a double screw, cooling and granulating to obtain moisture-absorbing polyester fiber master batches;
D. uniformly mixing 8% of moisture-absorbing polyester fiber master batch with polyester chips by weight ratio, melting by a screw extruder, statically mixing, filtering, metering by a box metering pump, extruding by a C-shaped hollow spinneret plate, and quenching by asymmetric circular blowing strong wind to obtain nascent fiber;
E. then drawing, heat setting, washing, drying and winding the nascent fiber to obtain the moisture absorption polyester fiber;
F. the stainless steel wires are wrapped and wound on the moisture absorption polyester fibers to serve as warps, the weft stainless steel wires serve as wefts, and the warps and the wefts are interwoven to form the moisture absorption and sweat releasing radiation protection polyester fabric.
In the step B, the particle size of the micro-nano calcium carbonate is 800-1500 nm; the mass ratio of the polyester powder to the micro-nano calcium carbonate is 50: 1.
in the step B, the process conditions of the vacuum pre-crystallization drying treatment are as follows: keeping the temperature for 3h at the vacuum degree of less than 0.3MPa and the temperature of 85 ℃, and then sequentially increasing the temperature by 8 ℃ per hour until the temperature reaches 135 ℃;
in the step D, the spinning temperature is 265 ℃.
In the step E, the draft ratio after the draft is 5 times.
In the step F, the weight percentage of the stainless steel wires in the moisture absorption and sweat releasing radiation protection terylene fabric is 15%.
The following test results were obtained by testing the moisture absorption properties of the polyester fabrics spun from the polyester fibers prepared in examples 1 to 3 by the methods of JISL1907-2010, respectively, and the specific results are shown in table 1.
Table 1: examples 1 to 3 results of moisture absorption property measurement;
| example 1 | Example 2 | Example 3 |
| Longitudinal wicking height (10 min) | 96 | 96 | 96 |
| Transverse wicking height (10 min) | 98 | 98 | 98 |
| Residual water content of 45 minutes% | 7.2 | 7.1 | 7.0 |
The test data show that the moisture absorption polyester fiber prepared by the invention has very good moisture absorption performance.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.