KR20210095344A - Polyester master batch having material of infrared ray radial property, antimicrobial effect, and uv blocking property - Google Patents

Abstract

The present invention relates to a polyester master batch containing infrared ray emission, antimicrobial, and UV blocking materials to have the uniform content of functional materials and a manufacturing method thereof. According to the present invention, the method manufactures a polyester master batch containing infrared ray emission, antimicrobial, and UV blocking materials, which is manufactured by an extruder divided into a first section, a second section, a third section, a fourth section, and a fifth section. The first section performs a melting step of receiving and passing a general polyester master batch therethrough with a passing time of 8 to 15 seconds while heating at 100 to 150℃ to melt polyester. The second section performs a first functional material input step of inputting an antibacterial zeolite having a specific gravity of 2.0 to 3.0 and a UV blocking agent having a specific gravity of 2.0 to 3.0 and passing the mixture therethrough with a passing time of 3 to 6 seconds while heating at 150 to 200℃. The third section performs a second functional material input step of inputting aluminum oxide and passing the mixture therethrough with a passing time of 2 to 4 seconds while heating at 200 to 240℃. The fourth section performs a mixing step of passing the mixture therethrough with a passing time of 1 to 3 seconds while heating at 240 to 270℃ to mix the mixture. The fifth section performs an extrusion step of extruding the polyester containing the functional materials such as antibacterial zeolite, a UV blocker, and aluminum oxide while heating at 270 to 290℃.

Description

Polyester master batch containing far-infrared radiation, antibacterial and UV-blocking substances and method for manufacturing the same

The present invention relates to a polyester masterbatch containing a far-infrared radiation, antibacterial and UV blocking material and a manufacturing method thereof will be.

With the improvement of living standards, it is expected that fabrics that can produce clothing with functionality that have aesthetic functions while making the human body more comfortable and pleasant, going beyond the existing concept of clothing, are expected, and textile manufacturers are also responding to such market demands. Earlier, it is releasing yarns and fabrics with improved functions.

Recently, the high-functionalization of synthetic fibers is being developed in the direction of maximizing the advantages of synthetic fibers while improving physical properties that compensate for the weaknesses of natural fibers. Representative functional materials include fabrics and secondary textile products with functions such as sweat absorption, quick drying, antistatic, UV protection, cooling sensation, antibacterial, and deodorant.

In general, as a method for imparting functionality to synthetic fibers, after preparing a polymer masterbatch containing a functional material, a polymer masterbatch containing a functional material and a general polymer masterbatch are mixed to form a fiber to give functionality to the fiber. there is.

Korean Patent Laid-Open No. 1998-033438 discloses a method for producing a polyester fiber with excellent deodorization and antibacterial properties. After preparing a polyester masterbatch containing fine particles of elvan that emits far-infrared rays while having antibacterial and deodorizing functions, general polyester A polyester fiber having an antibacterial and deodorizing function through a spinning process by mixing with a master batch is disclosed.

In addition, in Korean Patent Application Laid-Open No. 1997-006375, a ceramic fine powder having a spectral reflectance of 65% or more in the far-infrared radiation region (wavelength 4 to 25㎛) is uniformly kneaded in a polymer in order to exhibit excellent thermal insulation and permanent effect. There is disclosed a method for producing a polyester fiber that not only improves whiteness and has a soft feel when manufacturing into a fiber by doing so, but also emits far-infrared rays.

In addition, Republic of Korea Patent No. 0497146 discloses antibacterial properties and properties of emitting far infrared rays and negative ions by uniformly dispersing the inorganic metal ceramic, which is an antibacterial component, and ceramic powder emitting far infrared rays and emitting negative ions in a polyester polymer, and mixing and emitting them. It is disclosed for a functional polyester fiber having a.

As described above, in the prior art, the polymer master batch containing the functional material is prepared by injecting the functional material and the general polymer master batch into an extruder, mixing them inside the extruder, extruding them to form strands, and cutting them into pellets. ) in the form of

It is very important that the functional material is uniformly contained in the polymer master batch containing the functional material prepared as described above, and a high content of the functional material is preferably contained for economical efficiency and fairness in manufacturing fibers.

However, when the functional material is contained in a high content in the polymer master batch, there is a problem in that it is difficult to uniformly contain the functional material contained in the master batch.

In addition, since most functional materials have one function, there is a problem that a polymer masterbatch containing a plurality of functional materials must be used in order to impart multifunctionality to the fiber, and the content of the functional material in the fiber is increased, so that the feel of the fiber is reduced There was a problem in that physical properties such as strength and elongation were deteriorated.

The present invention was invented to solve the problems of the prior art, and a far-infrared radiation, antibacterial and UV blocking material capable of uniformly and high content of a functional material excellent in far-infrared radiation, antibacterial and UV blocking functions in a polyester master batch An object of the present invention is to provide a method for producing a polyester master batch containing this.

In addition, an object of the present invention is to provide a polyester masterbatch containing far-infrared radiation, antibacterial and UV blocking materials by the above manufacturing method.

The present invention is a method for producing a polyester masterbatch containing far-infrared radiation, antibacterial and UV blocking materials manufactured through an extruder divided into a first section, a second section, a third section, a fourth section, and a fifth section, The first section is a melting step of melting the polyester by inserting a general polyester master batch and passing through with a passage time of 8 to 15 seconds while heating to 100 to 150 °C; In the second section, an antimicrobial zeolite having a specific gravity of 2.0 to 3.0 and a UV blocking agent having a specific gravity of 2.0 to 3.0 are added, and a first functional material input step that passes with a passage time of 3 to 6 seconds while heating to 150 to 200°C; The third section includes a second functional material input step in which aluminum oxide is added, and passes with a passage time of 2 to 4 seconds while heating to 200 to 240°C; The fourth section is a mixing step of passing and mixing with a passing time of 1 to 3 seconds while heating at 240 ~ 270 ℃; And far-infrared radiation, antibacterial and UV blocking material, characterized in that it comprises an extrusion step of extruding the polyester containing the functional material, antibacterial zeolite, UV blocking agent, and aluminum oxide while heating to 270 ~ 290 ℃ in the fifth section Provided is a method for preparing a contained polyester master batch.

In addition, the functional material provides a polyester master batch containing far-infrared radiation, antibacterial and UV blocking material, characterized in that it is contained in 10 to 40 wt% of the total weight of the polyester master batch - a method for producing.

In addition, the functional material provides a method for producing a polyester masterbatch containing far-infrared radiation, antibacterial and UV-blocking material, characterized in that it contains 20-30wt%.

In addition, the functional material is 30 to 70 wt% of aluminum oxide, 15 to 35 wt% of antibacterial zeolite, 15 to 35 wt% of UV blocking agent Far-infrared radiation, antibacterial and UV blocking material containing polyester masterbatch manufacturing method provides

In addition, it provides a polyester masterbatch containing far-infrared radiation, antibacterial and UV blocking material, characterized in that produced by the above manufacturing method.

As described above, the polyester master batch containing the far-infrared radiation, antibacterial and UV blocking material according to the present invention adjusts the timing of adding functional materials such as aluminum oxide, antibacterial zeolite, and UV blocker according to specific gravity so that the content of functional materials is uniform. There is an effect that one polyester master batch can be manufactured.

In addition, while the content of the functional material is uniform, there is an effect that a polyester master batch containing a high content of the functional material can be prepared.

1 is a view showing a process diagram of a polyester master batch manufacturing method containing far-infrared radiation, antibacterial and UV blocking material according to the present invention.
2 is a view schematically showing an extruder for producing a polyester master batch containing the far-infrared radiation, antibacterial and UV blocking material of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. First, it should be noted that in the drawings, the same components or parts are denoted by the same reference numerals whenever possible. In describing the present invention, detailed descriptions of related known functions or configurations are omitted so as not to obscure the gist of the present invention.

As used herein, the terms 'about', 'substantially' and the like are used in or close to the numerical value when manufacturing and material tolerances inherent in the stated meaning are presented, and provide an understanding of the present invention. To help, precise or absolute figures are used to prevent unfair use by unscrupulous infringers of the stated disclosure.

1 is a view showing a process diagram of a polyester master batch manufacturing method containing far-infrared radiation, antibacterial and UV blocking material according to the present invention, and FIG. 2 is a polyester containing far-infrared radiation, antibacterial and UV blocking material of the present invention. It is a diagram schematically showing an extruder for producing a master batch.

The present invention relates to a method for producing a polyester masterbatch containing far-infrared radiation, antibacterial and UV blocking materials. Using aluminum oxide, antibacterial zeolite, and UV blocking agent as functional materials, the melting step, first functional material input as shown in FIG. 1 It is prepared including the step, the second functional material input step, the mixing step, and the extrusion step.

The aluminum oxide is a material that emits far-infrared rays of the polyester masterbatch of the present invention with a specific gravity of 4.0 to 4.5, and is an inorganic material having UV blocking and antibacterial functions.

The antibacterial zeolite is a zeolite in which an antibacterial material is supported on the zeolite, and it is preferable that a metal having an antibacterial property is supported.

The metal supported on the zeolite may be any one or two or more metals of silver (Ag), copper, zinc, nickel, and iron, and in the present invention, silver-supported zeolite having excellent antibacterial properties and widely used is used. It would be preferable to

The specific gravity of the silver-supported zeolite can be adjusted by controlling the amount of silver supported, and the specific gravity should be adjusted to 2.0 to 3.0.

The UV blocking agent is a material that can block UV, has a specific gravity of 2.0 to 3.0, does not lose its function at the temperature of polyester processing conditions, and any organic or inorganic material that can be formed into a powder for smooth input will be available

The functional material composed of the aluminum oxide, antibacterial zeolite, and UV blocker is 30 to 70wt% of aluminum oxide, 15 to 35wt% of antibacterial zeolite, 15 to 35wt% of UV blocker so as to have excellent far-infrared radiation, antibacterial and UV blocking properties. It would be desirable

The aluminum oxide, antibacterial zeolite, and UV blocking agent preferably have a particle size of about 100 to 300 μm, but it will be preferable to use a particle size of 400 to 500 nm in order to increase workability and ease of dispersion.

The polyester master batch containing the far-infrared radiation, antibacterial and UV blocking material of the present invention is manufactured through an extruder divided into a first section, a second section, a third section, a fourth section, and a fifth section. The section, the second section, the third section, the fourth section, and the fifth section are not divided into different categories depending on the heating temperature of the extruder.

The extruder used in the present invention is a device that is generally mixed and extruded through a screw as shown in FIG. 2, and in the present invention, it will be preferable to use an extruder having a twin screw.

The first section, the second section, the third section, the fourth section, and the fifth section are formed so that the heating temperature increases as the section rises, and an extruder whose heating temperature is controlled for each section must be used.

The melting step is a step performed in the first section, and the first section is a step of melting the polyester by inserting a general polyester masterbatch and passing it with a passage time of 8 to 15 seconds while heating to 100 to 150 ° C.

In general, polyester resin has a melting point of about 250° C. or higher, and does not melt when heated at 100 to 150° C. this begins

The general polyester master batch is melted by about 80% or more while passing through the first section and the second section of the melting step, and is mostly melted in the third section.

First functional material input step, second functional material input step

The first functional material input step is a step carried out in the second section, an antibacterial zeolite having a specific gravity of 2.0 to 3.0 and a UV blocking agent having a specific gravity of 2.0 to 3.0 are added, and passed with a passing time of 3 to 6 seconds while heating to 150 to 200 ° C. is a step to

The second functional material input step is a step carried out in the third section and is a step in which aluminum oxide is added and passed with a passage time of 2 to 4 seconds while heating to 200 to 240 °C.

The mixing step is a step carried out in the fourth section, and is a step of mixing the antimicrobial zeolite, the UV blocker, and the aluminum oxide injected in the second section and the third section so that they are uniformly mixed.

The inventor of the present invention has discovered through numerous experiments that the dispersibility and miscibility are different depending on the specific gravity of the material when the functional material is added. In order to

The antibacterial zeolite and UV blocker are added to the second section by adjusting the specific gravity to 2.0 to 3.0, and aluminum oxide having a specific gravity of 4.0 to 4.5 is added to the third section to have excellent mixability and dispersibility.

In addition, the passing time for each section is the time for the polyester to stay within the section, and it takes a long time to pass in the state in which the melting is in progress in the first section, but gradually melts and the heating temperature for each section rises to lower the polyester viscosity. As a result, the transit time becomes faster.

The passage time is a factor that keeps the polyester state in the section the same. If the passage time is outside the range disclosed above, the uniformity of the content of the functional material may be reduced.

The passage time for each section may control the rotational speed of the extruder screw.

The extrusion step is a step carried out in the fifth section and is a step of extruding polyester containing functional materials such as antibacterial zeolite, UV blocker, and aluminum oxide while heating to 270 to 290°C.

In the extruding step, the polyester containing the functional material is extruded to form a strand, and the polyester containing the functional material extruded in the strand form is cut through the cutting step to form a master batch in the form of a pellet. can be manufactured with

In the polyester masterbatch containing the far-infrared radiation, antibacterial and UV blocking material of the present invention prepared as described above, the functional material, such as antibacterial zeolite, UV blocker, and aluminum oxide, can be uniformly contained in a high content, and the functional material is 10 to 40 wt. % is preferably contained, and more preferably, the functional material is contained in an amount of 20 to 30 wt%.

The method for producing a polyester master batch containing a far-infrared radiation, antibacterial and UV blocking material of the present invention as described above is functional by controlling the specific gravity of the functional materials, such as antibacterial zeolite, UV blocking agent, and aluminum oxide, and adjusting the time of input according to the specific gravity. A polyester master batch containing a high content of functional material while having a uniform content of the material can be prepared.

The polyester master batch containing the far-infrared radiation, antibacterial and UV blocking material prepared as described above is contained in a general polyester resin with the content of functional materials adjusted according to the purpose of use, and can be used in injection products for various purposes, or It may be manufactured from fibers, films, etc. and used for various purposes.

Hereinafter, examples of a method for producing a polyester master batch containing far-infrared radiation, antibacterial and UV blocking materials according to the present invention are shown, but the present invention is not limited to the examples.

◈ Content uniformity evaluation test according to functional substance input section

1. Examples

A polyester master batch having a melting point of about 260° C. and a twin screw extruder were used to prepare a polyester master batch of the present invention.

Silver-supported zeolite with a particle diameter of about 500 nm as a functional material and an antibacterial zeolite with a specific gravity of 2.3, an inorganic material with a specific gravity of 2.6 as a UV blocker, and aluminum oxide with a specific gravity of 4.1 were prepared as functional materials.

The general polyester master batch was put into the extruder through the main feeder device, and functional materials such as antibacterial zeolite, UV blocker, and aluminum oxide were put into the extruder in the first to fourth sections through the sub feeder device, respectively (Table 2). 1st section, 2nd section, 3rd section, 4th section).

In Example 1, an antimicrobial zeolite, a UV blocker, and aluminum oxide were added to the first section, Example 2 is an antimicrobial zeolite, a UV blocker was added to the first section, and aluminum oxide was added to the second section, and Example 3 was an antibacterial zeolite, The UV blocker was put in the second section, aluminum oxide was put in the third section, Example 4 was an antibacterial zeolite, the UV blocker was the third section, and the aluminum oxide was put in the fourth section, and the far-infrared radiation, antibacterial and UV blocking material of the present invention was A contained polyester master batch was prepared.

The functional material was composed of 50wt% of aluminum oxide, 25wt% of antibacterial zeolite, and 25wt% of UV blocking agent.

Polyester master batches having different functional material contents were prepared by controlling the content of the functional material to 10 to 40 wt%, and the content error range of the functional material was measured for each section and content, and the results are shown in Table 2.

* The content error range (%) was calculated by the following formula by measuring the weight of the remaining ash after removing the polyester resin by heating 5 g of the prepared polyester masterbatch at 500 to 600 ° C for 30 to 60 minutes. repeated the same experiment 30 times to measure the error range.

* Content error range calculation formula: [(Introduced functional material weight-Ash weight)/Input functional material weight]*100

- The temperature and passage time for each section of the extruder are shown in Table 1. The temperature for each section was formed so that the temperature was gradually increased as the extrusion proceeded to prepare a polyester master batch.

division Temperature (℃) transit time(s) Section 1 100-150 11 Section 2 150-200 4 Section 3 200-240 3 Section 4 240-270 2 Section 5 270-290 -

division 15wt% 20wt% 25wt% 30wt% 35 wt% 40wt% Example 1 ±2.5 ±4.2 ±6.9 ±8.2 ±10.4 - Example 2 ±1.5 ±2.7 ±4.2 ±5.8 ±7.2 ±9.9 Example 3 ±0.1 ±0.1 ±0.3 ±0.6 ±1.9 ±2.2 Example 4 ±0.4 ±0.7 ±1.4 ±1.9 ±2.6 ±3.9

As shown in Table 2, it can be seen that Example 3, in which the antimicrobial zeolite and UV blocker were added in the second section, and aluminum oxide was added in the third section, had the smallest content error range.

◈ Far-infrared radiation, antibacterial and UV blocking functional evaluation

Preparation Example: Fabrication and Film Manufacturing

A polyester resin containing 1.0 wt% of aluminum oxide, 0.5 wt% of an antibacterial zeolite, and 0.5 wt% of a UV blocker was formed by containing a polyester master batch containing 20 wt% of a functional material in the polyester resin.

Using the polyester resin, a polyester resin of 75D/36F and a polyester film having a thickness of 0.3 mm were prepared by a conventional method.

The polyester fiber prepared in Preparation Example was prepared as a plain fabric to measure far-infrared radiation and antibacterial properties, and UV blocking properties were evaluated with a polyester film.

1. Far-infrared radiation was evaluated by requesting from the Korea Far-Infrared Association, a specialized testing institution, and the test method was KFIA-FI-1005 (infrared emissivity and radiant energy of the sample, using an infrared spectrophotometer (FT-IR spectrometer) at 37°C). to measure against a black body), and are shown in Table 3.

division emissivity
(5~20㎛, wavelength range) radiant energy
(W/m2 μm, 37℃) manufacturing example 0.870 3.41 X 10 ²

As shown in Table 3, it can be seen that the fabric formed of the fiber using the polyester masterbatch containing the far-infrared radiation, antibacterial and UV blocking material of the present invention has excellent far-infrared radiation.

2. Antimicrobial evaluation is measured in accordance with KS K 0693. After making the sample sterile, contact the pre-cultured microorganisms in various ways, leave them at an appropriate temperature and humidity for a certain period of time, and extract the bacteria to determine the number of viable cells. After identifying, the results are displayed as the reduction rate %, bacteriostatic activity value, and antibacterial activity value (Strain 1. Staphylococcus aureus, Strain 2. Pneumonia)

division Staphylococcus aureus pneumococcus manufacturing example 99.9% 99.9%

As shown in Table 2, it can be seen that the fabric formed of the fiber using the polyester masterbatch containing the far-infrared radiation, antibacterial and UV blocking material of the present invention has excellent antibacterial properties with an antibacterial activity of 99.9% against Staphylococcus aureus and pneumococcus.

3. UV-blocking properties were evaluated by measuring UV-A (315 ~ 400 nm) and UV-B (290 ~ 315 nm) with UV-VIS-NIR SPECTROPHOTOMER, and are shown in Table 5.

ultraviolet ray Blocking rate (%) UV-A 98.2 UV-B 98.1 Average 98.15

As shown in Table 5, it can be seen that the film using the polyester masterbatch containing the far-infrared radiation, antibacterial and UV blocking material of the present invention has a UV blocking rate of 95% or more and has excellent UV blocking properties.

Claims (5)

In the polyester masterbatch manufacturing method containing far-infrared radiation, antibacterial and UV blocking materials manufactured through an extruder divided into a first section, a second section, a third section, a fourth section, and a fifth section,
The first section is a melting step of melting the polyester by inserting a general polyester master batch and passing through with a passage time of 8 to 15 seconds while heating to 100 to 150 ° C;
In the second section, an antibacterial zeolite having a specific gravity of 2.0 to 3.0 and a UV blocking agent having a specific gravity of 2.0 to 3.0 are added, and a first functional material input step that passes with a passage time of 3 to 6 seconds while heating to 150 to 200°C;
The third section includes a second functional material input step in which aluminum oxide is added and passed with a passage time of 2 to 4 seconds while heating to 200 to 240°C;
The fourth section is a mixing step of passing and mixing with a passing time of 1 to 3 seconds while heating at 240 ~ 270 ℃; and
Far-infrared radiation, antibacterial and UV blocking material, characterized in that it includes an extrusion step of extruding polyester containing functional materials such as antibacterial zeolite, UV blocking agent, and aluminum oxide while heating to 270 to 290°C in the fifth section. A method for preparing a polyester master batch. According to claim 1,
The functional material is a polyester masterbatch manufacturing method containing far-infrared radiation, antibacterial and UV blocking material, characterized in that it contains 10 to 40wt% of the total weight of the polyester masterbatch. 3. The method of claim 2,
The method for producing a polyester master batch containing far-infrared radiation, antibacterial and UV blocking material, characterized in that the functional material is contained in 20-30 wt%. According to claim 1,
The functional material is 30 to 70wt% of aluminum oxide, 15 to 35wt% of antibacterial zeolite, and 15 to 35wt% of UV blocking agent. A polyester master batch containing far-infrared radiation, antibacterial and UV blocking materials, characterized in that it is prepared by the method of any one of claims 1 to 4.

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