KR102411370B1 - Functional PET fiber containing calcium oxide of recycling shell and Manufacturing method thereof - Google Patents

Abstract

The present invention relates to a functional PET fiber containing calcium oxide (CaO) from recycled shells and a manufacturing method thereof, and more particularly, to a mineral containing an inorganic metal oxide component in a PET resin, a plant extract, and calcium oxide manufactured from discarded shells (CaO) powder is added as a natural functional material to provide antibacterial, deodorizing, and deep-coloring effects by increasing dye adsorption, and a method for manufacturing the same.
As described above, the present invention has a deep color effect by imparting antibacterial properties and increasing dye adsorption by adding calcium oxide powder made from shell, which is a natural functional material, to existing polyester fibers, which have superior physical properties and advantages than natural fibers. Functional polyester fibers may be provided.
In addition, natural functional substances are uniformly dispersed in the fibers by manufacturing a masterbatch chip in which two or more mineral powders and calcium oxide powder are added to the existing polyester fiber, and mixing the masterbatch chip and plant extract prepared in the virgin chip. It is possible to provide semi-permanent functional polyester fibers whose effects are continuous and the durability does not deteriorate even after washing and wearing.
In addition, it is possible to provide functional polyester fibers that contribute to ECO dyeing processing and ESG management by recycling shells, which are waste resources, and using calcium oxide powder, which is a natural functional material.

Description

Functional PET fiber containing calcium oxide (CaO) containing recycled shell and manufacturing method thereof

The present invention relates to a functional PET fiber containing calcium oxide (CaO) from recycled shells and a manufacturing method thereof, and more particularly, to a mineral containing an inorganic metal oxide component in a PET resin, a plant extract, and calcium oxide manufactured from discarded shells (CaO) powder is added as a natural functional material to provide antibacterial, deodorizing, and deep-coloring effect by increasing dye adsorption, and a method for manufacturing the same.

In the past, textile materials pursued functionality by improving physical properties such as strength, elongation, and rigidity, but recently, in line with the changing trend of cleanliness, comfort, and health-oriented social conditions, antibacterial, deodorizing, bactericidal, heat-resistant and UV-blocking, etc. We prefer high-performance fiber materials that provide And recently, in the textile and fashion business, the LOHAS culture, which values health as well as the environment, is the mainstream in the well-being culture, so high-functionality eco-friendly textile products made from natural materials are increasing in the textile materials and fashion fields.

In addition, as the importance of carbon neutrality and ESG management is emerging day by day, the business of recycling discarded shells (shells), one of the causes of environmental problems, as a high-value-added resource is increasing. According to the Ministry of Oceans and Fisheries, 920,000 tons of shells have been left unattended in fishing villages in Gyeongnam and Jeollanam-do. This not only damages the natural scenery around the coast, but also causes odor, wastewater and dust, causing health and sanitation and environmental problems.

The shell is mainly composed of calcium carbonate (CaCO ₃ ), and when the calcium carbonate is plastically processed, the carbon dioxide is blown away and natural calcium oxide (CaO) with a purity of 98% or more, that is, quicklime is produced. Calcium oxide produced is a natural functional substance such as antibacterial and sterilizing, used in the manufacture of yarn and textiles, and is also used in eco-friendly fertilizer and livestock feed, limestone alternative fuel or concrete material, construction aggregate, beauty and health food.

In addition, among the functional natural materials used in high-functional eco-friendly textile products, there are natural minerals contained in ocher, germanium, elvan, mica, jade, tourmaline, etc. represents In addition, there are natural extracts of plants with various functional substances. Among these functional substances, ingredients with unique pharmacological actions undergo separation and purification processes, so that synthetic chemicals are used not only in the fields of food, cosmetics, pharmaceuticals and medicine, but also in textile dyeing and processing. The use of the product is increasing significantly in that it can minimize the side effects of the product.

In the conventional method of manufacturing functional fibers by adding natural functional substances, a single mineral powder having various functions is applied or coated to a chemical resin or fabric on the basis of the general manufacturing process of fibers, and natural functionalities with various functions After adding a certain amount of powder to a chemical resin, etc., it has been manufactured through spinning, stretching, false twisting, cutting or spinning and weaving processes.

However, in this conventional manufacturing method, the rate of implantation of minerals and natural powder on the yarn is very low, so the effect is insignificant, the durability is reduced by washing and use, and the functionality is insufficient, and it is not uniformly dispersed during the spinning process. There is a problem that causes the thread to fail because it is easily agglomerated without it.

Registered Patent No. 10-0361928 (2002.11.08) Registered Patent No. 10-0450530 (September 17, 2004) Registered Patent No. 10-0481358 (2005.03.28)

An object of the present invention to solve the above problems is to recycle industrial waste and to improve antibacterial properties, dye adsorption and dyeing fastness, and calcium oxide powder produced by recycling shells on existing polyester fibers. To provide a functional polyester fiber characterized in that it is added as a natural functional material.

Another object of the present invention to solve the above problems is a master batch chip in which two or more mineral powders and calcium oxide powder are added to evenly disperse natural functional substances in the existing polyester fibers. It is to provide a functional polyester fiber characterized in that the yarn is prepared by uniformly mixing the mineral powder prepared by mixing calcium oxide powder with the plant extract.

The present invention for achieving the above object is to prepare a metal oxide powder using two to four kinds of minerals among minerals including elvan, basalt, meteorites and zeolite (S100); Recycling the shell to prepare a calcium oxide (CaO) powder (S200); Preparing an intermediate antibacterial material by adding 0.3 to 0.7 parts by weight of calcium oxide (CaO) powder prepared by recycling the shell to 100 parts by weight of the metal oxide powder prepared using the two to four minerals (S300) ; A step of preparing a final antibacterial material by adding 4-7 parts by weight of a plant extract to 100 parts by weight of the metal oxide powder to which the calcium oxide (CaO) powder was added (S400) and 0.3 of the final antibacterial material in 97-99.7 wt% of the PET resin Including the step (S500) of mixing ~3 wt% evenly and putting it in the extruder and then spinning,

The step (S100) of preparing a metal oxide powder by using two to four kinds of minerals among minerals including elvanite, basalt, meteorites and zeolite is two kinds of minerals including elvanite, basalt, meteorite and zeolite. Selecting and preparing four minerals (S102); a step of individually primary grinding the selected minerals (S104); A step (S106) of obtaining a powder of a metal oxide having an average particle size of 3 μm or less by second grinding by mixing the prepared minerals in the same amount,

Recycling the shells to prepare calcium oxide (CaO) powder (S200) includes washing the shells with water (S202); calcining the washed shells in a calcination furnace at 1700-1800 ° C for 1 to 5 h (S204); A step (S208) of obtaining calcium oxide (CaO) powder by primary grinding the calcined shells to 25-50 μm (S206) and secondary grinding the primary crushed shells to 0.5 to 1.5 μm (S208) characterized by, or

Preparing a metal oxide powder using two to four minerals from among minerals including elvan, basalt, meteorites and zeolite (S100); Recycling the shell to prepare a calcium oxide (CaO) powder (S200); Preparing an intermediate antibacterial material by adding 0.3 to 0.7 parts by weight of calcium oxide (CaO) powder prepared by recycling the shell to 100 parts by weight of the metal oxide powder prepared using the two to four minerals (S300) ; Forming a master batch chip (Master batch chip) by mixing 97 ~ 99 wt% of the PET resin and 1-3 wt% of the intermediate antibacterial material (S600); Recrystallizing the master batch chip (Master batch chip) at 80 ~ 130 ℃ (S700) and virgin chip (Virgin chip) 96 ~ 99.4 wt%, the master batch chip (Master batch chip) 0.3 ~ 1 wt% and Including the step (S800) of mixing 0.3 to 3 wt% of the plant extract and injecting it into the extruder and then spinning (S800),

The step (S100) of preparing a metal oxide powder by using two to four kinds of minerals among the minerals including elvan, basalt, meteorites and zeolites is two kinds of minerals including elvan, basalt, meteorites and zeolites. Selecting and preparing four minerals (S102); a step of individually primary grinding the selected minerals (S104); A step (S106) of obtaining a powder of a metal oxide having an average particle size of 3 μm or less by second grinding by mixing the prepared minerals in the same amount,

Recycling the shells to prepare calcium oxide (CaO) powder (S200) includes washing the shells with water (S202); calcining the washed shells in a calcination furnace at 1700-1800 ° C for 1 to 5 h (S204); A step (S208) of obtaining calcium oxide (CaO) powder by primary grinding the calcined shells to 25-50 μm (S206) and secondary grinding the primary crushed shells to 0.5 to 1.5 μm (S208) characterized in that

The plant extract preferably includes an extract of the Camellia family containing a vegetable oil having a deodorizing function, and the shell preferably includes a cockroach that can be modified to have a network structure.

In addition, in the step of preparing the intermediate antibacterial material (S300), two or more antibacterial substances from among calcium oxide, natural polymer chitosan, and magnesium oxide prepared from the shell are added to the metal oxide powder prepared using the mineral. do it with

According to the present invention, calcium oxide powder prepared from shell, which is a natural functional material, is added to existing polyester fibers, which have superior physical properties and advantages than natural fibers, to impart antibacterial properties and increase dye adsorption to have a deep color effect. Functional polyester fibers may be provided.

And, by manufacturing a masterbatch chip in which two or more kinds of mineral powder and calcium oxide powder are added to the existing polyester fiber, and mixing the masterbatch chip and plant extract prepared in the virgin chip, natural functional substances are uniformly dispersed in the fiber It is possible to provide semi-permanent functional polyester fibers whose effects are continuous and the durability does not deteriorate even after washing and wearing.

In addition, it is possible to provide functional polyester fibers that contribute to ECO dyeing processing and ESG management by recycling shells, a waste resource, and using calcium oxide powder, which is a natural functional material.

1 is a flowchart showing the manufacturing process of calcium oxide (CaO)-containing functional PET fiber recycled shell according to an embodiment of the present invention;
Figure 2 is a graph showing the size of the particle size after secondary grinding of the mineral according to an embodiment of the present invention;
Figure 3 is a view of the pulverized material taken through a microscope at high magnification after the secondary pulverization of the mineral according to an embodiment of the present invention;
4 is a table comparing the cross section and the side of the general yarn and the antibacterial yarn manufactured according to an embodiment of the present invention;
5 is an SEM photograph of a cross-section of a normal yarn according to an embodiment of the present invention;
6 is a SEM photograph of a cross-section of an antibacterial yarn according to an embodiment of the present invention;
7 is a high-magnification microscope view of Staphylococcus aureus according to an embodiment of the present invention;
8 is a high-magnification microscope view of bacillus pneumoniae according to an embodiment of the present invention;

The following objects, other objects, features and advantages of the present invention will be readily understood through the following preferred embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms.

Rather, the embodiments introduced herein are provided so that the disclosed subject matter may be thorough and complete, and that the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

Embodiments described and illustrated herein also include complementary embodiments thereof.

In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, the terms 'comprise' and/or 'comprising' do not exclude the presence or addition of one or more other components.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, various specific contents have been prepared to more specifically explain and help the understanding of the invention. However, a reader having enough knowledge in this field to understand the present invention can recognize that it can be used without these various specific details. In some cases, it is mentioned in advance that parts which are commonly known and not largely related to the invention in describing the invention are not described in order to avoid confusion in describing the invention.

Hereinafter, a method for manufacturing a functional PET fiber containing calcium oxide (CaO) containing recycled shells according to the present invention will be described in detail with the accompanying drawings.

1 is a flowchart of a method for manufacturing a functional PET fiber containing calcium oxide (CaO) from recycled shells.

In the present invention, it is possible to use two methods: a method of manufacturing a master batch chip and a method of injecting the powder into the yarn as it is in order to evenly mix the natural functional material with the yarn.

First, the step of preparing a metal oxide powder using two to four minerals from among minerals including elvan, basalt, meteorites and zeolite is a step of selecting and preparing two to four kinds of minerals from the above, the selection It includes the steps of individually primary grinding the minerals and the secondary grinding by mixing the prepared minerals in the same amount to obtain a powder of a metal oxide having an average particle size of 3 μm or less.

As described above, elvan, basalt, meteorites, and zeolite-based mineral rocks contain a lot of metal oxides, so that when mixed with fibers, a useful effect on the human body can be obtained. When the above-mentioned minerals are added to the fiber, the radioactive ability of far-infrared rays, which is originally possessed, and the adsorption power and antibacterial properties due to the porosity are exhibited.

The above-mentioned minerals have a porous three-dimensional network structure, and thus can be adsorbed, and have already been used as a function of removing odors and moisture. The adsorption function as described above has an effect of attracting bad odors and is very effective in removing odors.

However, when a mineral having the above structure is used in the fiber, it is difficult to mix evenly with the fiber, and if the pulverized product cannot be pulverized to a size of 3 μm or less, the mineral is easily removed due to continuous use and washing of the fiber. Therefore, the uniformity of the mineral is insufficient in terms of the functionality of the mineral, and it is difficult to secure spinning operability during melt spinning due to re-agglomeration between spinning and strong water absorption characteristics. The manufacturing cost is very high because it is difficult to adjust the rise, other color defects, and dispersibility.

In order to overcome the above disadvantages, in the present invention, two or more minerals are mixed and a grinding process is performed to prepare fibers. As described above, when two or more minerals are used, the minerals are evenly distributed in the fibers and the grinding operation of a size capable of maintaining a soft feel becomes easier. In other words, when the grinding operation is performed to mix the minerals into the fibers, each hardness is different, so that the grinding is easier and faster to 3㎛ or less, which is a size that can be put into the fibers, and the production cost and time are reduced due to the high yield. can

2 and 3 are graphs showing the size of the particle size after secondary grinding of the mineral used in the present invention, and a view of the pulverized product taken through a high-magnification microscope. As shown in Figs. 2 and 3, it was possible to pulverize the minerals used in the present invention so that the average particle size was reproducible up to 1 μm, and most of the minerals could be pulverized to 3 μm or less by 97% or more.

The two selected minerals are first crushed with a crusher so that they become powders each having a size of 50 μm. In the process of primary grinding as described above, when grinding is carried out in such a way that minerals are not mixed, it is possible to grind minerals from the primary to 50 μm in size.

The pulverized minerals as described above are secondarily pulverized to obtain a powder having an average particle size of 1 μm using a milling machine by mixing equal amounts of two or more minerals in a 1:1 ratio according to the selected functionality. In the case of three minerals selected as described above, always mix the same amount in a weight ratio of 1:1:1.

Next, the steps of recycling the shells to produce calcium oxide (CaO) powder include washing the shells with water, calcining the washed shells in a kiln at 1700~1800℃ for 1~5h, and 25 A step of primary grinding to 50 μm and secondary grinding of the primary crushed shell to 0.5 to 1.5 μm to obtain a calcium oxide powder.

The present invention recycles shells that cause environmental pollution to PET fibers to prepare calcium oxide (CaO) powder, and by adding the calcium oxide powder as a functional material, the antibacterial effect that is not sufficient with mineral powder alone is further increased.

The method of manufacturing calcium oxide by recycling shells is first washed with water to remove organic matter adhering to the surface. The shell used at this time does not matter to the type of oysters, scallops, scallops, etc., but in particular, the most preferred is the scallop shell having micropores through plastic processing.

The washed shell is calcined in a kiln at 1700 to 1800 ° C. for 1 to 5 h to thermally decompose and remove volatile components and other metal components contained in the shell, and to modify the functional material to have a three-dimensional network structure.

The calcined shells are first crushed to a size of 25-50 μm with a crusher, and the first crushed shells are secondarily crushed to a size of 0.5-1.5 μm by dry air-jet milling to obtain calcium oxide. make powder. At this time, since an exothermic reaction occurs during wet processing, a dry method is preferable.

After each of the metal oxide powder using 2 to 4 minerals and the calcium oxide powder recycled from the shells were prepared, 100 parts by weight of the metal oxide powder prepared by using the minerals calcium oxide powder prepared by recycling the shells This is a step of preparing an intermediate antibacterial material by adding 0.3 to 0.7 parts by weight.

When the calcium oxide powder recycled from the shell is added, natural polymer chitosan and magnesium oxide having antibacterial and deodorizing functions can be used together. At this time, when various kinds of functional materials including calcium oxide powder are added, in the case of 100 parts by weight of a metal oxide prepared from minerals, 0.3 to 0.7 parts by weight is mixed and used.

However, when the intermediate antibacterial material is directly put into the screw extruder (extruder), there is a problem in that it is not evenly added to the spun yarn. Yarns that are not evenly added will deteriorate their function, feel and durability. Therefore, most of the yarn for adding inorganic minerals and functional materials is made after the master batch chip is manufactured.

The master batch chip is prepared by mixing 97 to 99 wt% of PET resin and 1 to 3 wt% of an intermediate antibacterial material. When manufacturing masterbatch chips, the intermediate antibacterial substance is 1-3 wt%, and when the concentration is high, it is added at a low concentration because there are many fluctuating days. Therefore, 1.5 wt% is most preferable.

And after manufacturing the masterbatch chip, it includes a step of recrystallization at 80 ~ 130 ℃ to remove moisture.

Finally, 96 to 99.4 wt% of virgin chip, 0.3 to 1 wt% of master batch chip, and 0.3 to 3 wt% of plant extract are mixed and put into the extruder and then spinning.

For the virgin chip, one of a polymer resin including PET (Polyethylene), PBT (Polybutylene Terephthalate), nylon, rayon, PVC (Polyvinyl Chloride), PP (Polypropylene), and carbon is selected.

In addition, the amount of use is determined and added according to the functionality when manufacturing yarn using masterbatch chips. As the amount of inorganic material increases, the functionality such as deodorization and antibacterial increases, but if it is too much, it is difficult to form a yarn and the physical properties are deteriorated. At this time, the case where the yarn mixing amount (O.W.F) is 0.5% is the most preferable because it shows an excellent antibacterial rate without partial yarn breakage during yarn production.

4 is a table comparing the cross-section and side surfaces of the general yarn and the antibacterial yarn manufactured according to an embodiment of the present invention, and it can be seen that the natural functional material is evenly distributed in the antibacterial yarn.

In addition, Figures 5 and 6 are SEM photographs taken of the cross-section of the general yarn and the antibacterial yarn. Comparing the yarn state of the general yarn and the antibacterial yarn, the normal yarn has a heterogeneous cross section and the antibacterial yarn has a circular cross section. can be increased to produce a deep color effect.

When the yarn is manufactured using the master batch chip by adding the functional antibacterial material as described above, it is possible to evenly inject the yarn into the yarn, but there is a problem in that the manufacturing cost increases.

Therefore, in the present invention, when 100 parts by weight of the mineral powder mixed with calcium oxide, not the master batch chip, 4-7 parts by weight of plant extracts were added and mixed. The plant extract is a plant with a deodorizing component, and can be extracted using leaves, fruits, stem roots, etc. from more than 35 types of plants such as camellia, pine, tangerine, rose, and cypress, and among them, camellia with high deodorization rate. It is an extract obtained after extracting a plant of the Solanaceae family, and it is a plant extract containing a large amount of deodorizing ingredients. The plant extract as described above has a deodorizing rate and antibacterial power, and when the yarn is manufactured after the mineral powder is evenly mixed with the plant extract as described above, the advantage is that the mineral powder is evenly injected into the yarn by the injection device attached to the extruder. have.

Camelliaaceae, which is one of the components of plant extracts that can be used as a preferred embodiment of the present invention, is often used for ornamental purposes and is used by squeezing oil from seeds. Although it is used as a mordant by making lye, the extract of Camelliaaceae has been proven in several papers for its antibacterial and deodorizing ability. The tissues of the Camellia family were crushed and precipitated in 40% ethanol for 72 hours, then the ethanol layer was separated and then precipitated again in 40% EtOAc (Ethyl acetate; ethyl acetate) for a second 24 hours, after which only the extract was separated and the solvent layer was separated. It was removed and used. The plant extract extracted as described above contains a large amount of oil layer and has antibacterial and deodorizing properties.

When manufacturing a yarn by mixing the mineral powder with calcium oxide powder added with a plant extract, the manufacturing cost of the yarn can be reduced because the step of manufacturing the masterbatch chip can be omitted. Although the yarn produced by adding minerals has a very good function, the minerals collected from the same area also have slightly different components, so the difficulty and production cost of the selection operation to obtain pure components is high, so the utilization is low. Functional yarns manufactured by coating yarns with organic chemicals such as deodorants or antibacterial agents with poor durability have a high market share. However, as in the present invention, it is possible to produce highly competitive yarns by reducing the unit cost in manufacturing costs.

As described above, calcium oxide is added and the mineral powder mixed with the plant extract is put into a screw extruder together with a PET chip or synthetic resin, mixed, and spun at 270 ° C. at a speed of 3,000 rpm to form a functional polyester filament. to obtain As described above, the mineral powder with calcium oxide and oil were mixed so that they could be mixed more evenly during the spinning process. This was more stable and it was possible to produce a yarn with high durability.

The above functionalities were requested by the Korea Apparel Testing Research Institute (KATRI) and the DYETEC Research Institute to secure the experimental results.

<Comparative Example 1>

Two kinds of minerals, elvan and zeolite, are prepared by primary grinding into a powder of 50 µm, and the two types of pulverized minerals are mixed 1:1 and secondarily pulverized to obtain a powder of metal oxide having an average particle size of 1 µm. got The shell was plastic-processed at 1800 °C for 5 h, and was prepared as a powder of 50 µm by primary grinding, and calcium oxide having an average particle size of 1 µm was obtained by dry air-jet milling. Calcium oxide (CaO) corresponding to 0.5 parts by weight is added to 100 parts by weight of the mineral powder to prepare an intermediate antibacterial material, and 99 wt% of a polyester resin is mixed with 0.3 wt% of an intermediate antibacterial material to prepare a masterbatch chip . 99 wt% of the polyester resin, 0 wt% of the master batch chip, and 1 wt% of the plant extract were evenly mixed, put in an extruder, and then spun to obtain an antibacterial yarn, which is a polyester filament.

<Example 1>

Two kinds of minerals, elvan and zeolite, are prepared by primary grinding into a powder of 50 µm, and the two types of pulverized minerals are mixed 1:1 and secondarily pulverized to obtain a powder of metal oxide having an average particle size of 1 µm. got The shell was plastic-processed at 1800 °C for 5 h, and was prepared as a powder of 50 µm by primary grinding, and calcium oxide having an average particle size of 1 µm was obtained by dry air-jet milling. Calcium oxide (CaO) corresponding to 0.5 parts by weight is added to 100 parts by weight of the mineral powder to prepare an intermediate antibacterial material, and 99 wt% of a polyester resin is mixed with 0.3 wt% of an intermediate antibacterial material to prepare a masterbatch chip . 98.7 wt% of a polyester resin, 0.3 wt% of a master batch chip, and 1 wt% of a plant extract were evenly mixed, put in an extruder, and then spun to obtain an antibacterial yarn as a polyester filament.

<Example 2>

Two kinds of minerals, elvan and zeolite, are prepared by primary grinding into a powder of 50 µm, and the two types of pulverized minerals are mixed 1:1 and secondarily pulverized to obtain a powder of metal oxide having an average particle size of 1 µm. got The shell was plastic-processed at 1800 °C for 5 h, and was prepared as a powder of 50 µm by primary grinding, and calcium oxide having an average particle size of 1 µm was obtained by dry air-jet milling. Calcium oxide (CaO) corresponding to 0.5 parts by weight is added to 100 parts by weight of the mineral powder to prepare an intermediate antibacterial material, and 99 wt% of a polyester resin is mixed with 0.3 wt% of an intermediate antibacterial material to prepare a masterbatch chip . 98.5 wt% of a polyester resin, 0.5 wt% of a master batch chip, and 1 wt% of a plant extract were evenly mixed, put in an extruder, and then spun to obtain an antibacterial yarn, which is a polyester filament.

<Example 3>

Two kinds of minerals, elvan and zeolite, are prepared by primary grinding into a powder of 50 µm, and the two types of pulverized minerals are mixed 1:1 and secondarily pulverized to obtain a powder of metal oxide having an average particle size of 1 µm. got The shell was plastic-processed at 1800 ° C. for 5 h, and was prepared as a powder of 50 µm by primary grinding, and calcium oxide having an average particle size of 1 µm was obtained by dry air-jet milling. Calcium oxide (CaO) corresponding to 0.5 parts by weight is added to 100 parts by weight of the mineral powder to prepare an intermediate antibacterial material, and 99 wt% of a polyester resin is mixed with 0.3 wt% of an intermediate antibacterial material to prepare a masterbatch chip . 98.3 wt% of a polyester resin, 0.7 wt% of a master batch chip, and 1 wt% of a plant extract were evenly mixed, put into an extruder, and then spun to obtain an antibacterial yarn, which is a polyester filament.

<Experiment 1> Antibacterial rate by concentration of antibacterial yarn

Yarn Concentration (O.W.F) Comparative Example 1 Example 1 Example 2 Example 3 Antibacterial rate (%) 23.5 76.2 93~99 98~99 note - - - partial failure

As a result of Experiment 1, the higher the yarn mixing rate, the better the antibacterial rate, and in the case of 0.7%, partial yarn breakage occurs. Compared with the comparative example, it can be seen that even a small amount of calcium oxide is used to further increase the antibacterial properties.

7 and 8 are microscopic views at high magnification in which Staphylococcus aureus and Bacillus pneumoniae were observed in Comparative Example 1 (Sample 1) and Example 2 (Sample 2), respectively, conducted by KATRI. Mineral powder alone has antibacterial properties, but using shells When the prepared calcium oxide powder is contained, it can be seen that the antibacterial properties are further increased.

<Experiment 2> Comparative experiment on dyeing properties of antibacterial yarn and general yarn

Yarn Concentration (O.W.F) Comparative Example 1 Example 1 Example 2 color comparison

Through Experiment 2, the colors according to the amount of calcium oxide mixed were compared. As a result of comparing the photos of Experiment 2, it can be seen that as the amount of calcium oxide increases, the dyeing property increases and the concentration of the dye residue decreases at the same time.

<Experiment 3> Comparison of dyeing properties for the antibacterial yarn of Example 2

Experiment 3 is a dyeing comparison experiment with respect to Example 2, and it can be seen that the dyeability is increased by the addition of calcium oxide as in Experiment 2, as compared with general companies. In other words, if the polyester fiber contains calcium oxide powder made from shell, it is dyed darker than normal yarn, so when dyeing with the same color, 15-20% of the amount of dye is lowered, thereby reducing costs and reducing pollutants during dyeing wastewater treatment. .

Although the technical aspects have been described above and in the accompanying drawings, the technical idea of the present invention is for the description, and does not limit the invention, and those of ordinary skill in the art It will be understood that various modifications and changes of the present invention can be made without departing from the technical scope of the present invention described in the claims to be described below.

Claims (6)

Preparing a metal oxide powder by using two to four minerals from among minerals including elvan, basalt, meteorites and zeolite (S100);
Recycling the shell to prepare a calcium oxide (CaO) powder (S200);
Preparing an intermediate antibacterial material by adding 0.3 to 0.7 parts by weight of calcium oxide (CaO) powder prepared by recycling the shell to 100 parts by weight of the metal oxide powder prepared using the 2 to 4 minerals (S300) ;
Preparing a final antibacterial material by adding 4-7 parts by weight of a plant extract to 100 parts by weight of the metal oxide powder to which the calcium oxide (CaO) powder is added (S400) and
Including the step (S500) of evenly mixing 0.3 to 3 wt% of the final antibacterial material in 97 to 99.7 wt% of the PET resin and injecting it into the extruder and then spinning (S500),
The step (S100) of preparing a metal oxide powder by using two to four kinds of minerals among the minerals including the elvan, basalt, meteorites and zeolite
Selecting and preparing two to four minerals from among minerals including elvan, basalt, meteorites and zeolite (S102);
a step of individually primary grinding the selected minerals (S104);
A step (S106) of obtaining a powder of a metal oxide having an average particle size of 3 μm or less by second grinding by mixing the prepared minerals in the same amount,
The step of recycling the shell to prepare a calcium oxide (CaO) powder (S200)
washing the shell with water (S202);
calcining the washed shells in a calcination furnace at 1700-1800° C. for 1 to 5 hours (S204);
The step of first grinding the calcined shell to 25-50 μm (S206) and
A step (S208) of obtaining a calcium oxide (CaO) powder by secondly grinding the firstly pulverized shells to a size of 0.5 to 1.5 μm;
The shell uses a bird cockle, which can be modified to have a network structure,
The primary grinding step (S206) and secondary grinding to obtain calcium oxide (CaO) powder (S208) use a dry method,
The step of preparing the intermediate antibacterial material (S300) further adds one or more antibacterial substances from among natural polymer chitosan and magnesium oxide,
In the spinning step (S500), a method for producing a PET fiber containing calcium oxide (CaO) recycled shell, characterized in that obtaining a polyester filament
Preparing a metal oxide powder by using two to four minerals from among minerals including elvan, basalt, meteorites and zeolite (S100);
Recycling the shell to prepare a calcium oxide (CaO) powder (S200);
Preparing an intermediate antibacterial material by adding 0.3 to 0.7 parts by weight of calcium oxide (CaO) powder prepared by recycling the shell to 100 parts by weight of the metal oxide powder prepared using the 2 to 4 minerals (S300) ;
Forming a master batch chip (Master batch chip) by mixing 97 ~ 99 wt% of the PET resin and 1-3 wt% of the intermediate antibacterial material (S600);
Recrystallizing the master batch chip at 80 ~ 130 ℃ (S700) and
Virgin chip (Virgin chip) 96-99.4 wt%, the master batch chip (Master batch chip) 0.3-1 wt%, and plant extract 0.3-3 wt% mixed and put into the extruder and then spinning (S800) but,
The step (S100) of preparing a metal oxide powder by using two to four kinds of minerals among the minerals including the elvan, basalt, meteorites and zeolite is
Selecting and preparing two to four minerals from among minerals including elvan, basalt, meteorites and zeolite (S102);
a step of individually primary grinding the selected minerals (S104);
A step (S106) of obtaining a powder of a metal oxide having an average particle size of 3 μm or less by second grinding by mixing the prepared minerals in the same amount,
The step of recycling the shell to prepare a calcium oxide (CaO) powder (S200)
washing the shell with water (S202);
calcining the washed shells in a calcination furnace at 1700-1800° C. for 1 to 5 hours (S204);
The step of first grinding the calcined shell to 25-50 μm (S206) and
A step (S208) of obtaining a calcium oxide (CaO) powder by secondly grinding the firstly pulverized shells to a size of 0.5 to 1.5 μm;
The shell uses a bird cockle that can be modified to have a network structure,
The primary grinding step (S206) and secondary grinding to obtain calcium oxide (CaO) powder (S208) use a dry method,
In the step of preparing the intermediate antibacterial material (S300), one or more antibacterial substances from among natural polymer chitosan and magnesium oxide are further added,
In the spinning step (S800), a method for producing a PET fiber containing recycled calcium oxide (CaO), characterized in that obtaining a polyester filament.
3. The method of claim 1 or 2,
The plant extract is a method for manufacturing PET fiber containing recycled shells, characterized in that it is an extract of the Camellia family containing vegetable oil having a deodorizing function.
delete delete A PET fiber containing calcium oxide (CaO) recycled from the shell, characterized in that produced by the method according to claim 1 or 2

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