TW202231952A - Method for manufacturing antibacterial melt-blown non-woven fabric - Google Patents

Abstract

The invention provides a method for manufacturing an antibacterial melt-blown non-woven fabric, which includes the following steps. Natural antibacterial powders and polymer materials are melt-blended and granulated to form antibacterial particles. Afterwards, the antibacterial particles are subjected to a melt-blown process, so as to make an antibacterial melt-blown non-woven fabric.

Description

Manufacturing method of antibacterial meltblown nonwoven fabric

The present invention relates to a manufacturing method of a melt-blown non-woven fabric, and in particular, to a manufacturing method of an antibacterial melt-blown non-woven fabric.

With the improvement of living standards, people's requirements for home environment and personal hygiene are also increasing. In recent years, various products with antibacterial effects have been developed, and the antibacterial function of products is the main goal of continuous innovation and development in the industry. In the textile field, non-woven fabrics break through the traditional textile principle, and have the advantages of short process, fast production speed, high output, low cost, wide application, and many sources of raw materials, etc., and have a wide range of applications in daily production and life. Therefore, among various products with antibacterial effect, antibacterial meltblown nonwoven is one of the highly valued commodities.

The preparation process of antibacterial meltblown nonwovens requires the use of antibacterial agents, which mainly include three categories: organic antibacterial agents, inorganic antibacterial agents and natural antibacterial agents. The ingredients of organic antibacterial agents are mainly organic acids, phenols, alcohols and esters, which have a significant bactericidal effect, but are easy to make bacteria resistant to drugs, and have serious toxic and side effects, which will cause harm to the human body. Therefore, organic antibacterial agents cannot be used. Functional treatment of fibers. Most of the inorganic antibacterial agents are complexes of silver, zinc and copper ions carried by inorganic substances. Natural antibacterial agents are mainly natural ingredients such as proteins, sugars, oils and phenolic compounds extracted from animals and plants, which have the characteristics of low toxicity and side effects and safe use. However, in the preparation process of the conventional antibacterial meltblown nonwoven fabric, even if the natural antibacterial agent is used for processing to improve the shortcomings of the organic antibacterial agent and the inorganic antibacterial agent, the natural antibacterial agent still has the disadvantage that the natural antibacterial agent is easy to fall off and cannot be washed with water, thereby causing antibacterial agents. The effect is affected and reduced, and the convenience of use and operation is limited because it cannot be washed with water.

Based on the above, a method for manufacturing an antibacterial meltblown nonwoven fabric has been developed to improve the shortcomings of the conventional technology that the natural antibacterial agent is easy to fall off and cannot be washed with water, thereby improving the antibacterial effect and increasing the convenience of operation, which is an important topic currently required for research.

The invention provides a method for manufacturing an antibacterial melt-blown nonwoven fabric, which can improve the shortcomings of the conventional technology that the natural antibacterial agent is easy to fall off and cannot be washed with water, thereby improving the antibacterial effect and increasing the convenience of operation.

The present invention provides a method for manufacturing an antibacterial meltblown nonwoven fabric, which comprises the following steps. The natural antibacterial powder and polymer materials are melt-blended and granulated to form antibacterial particles. After that, the antibacterial particles are subjected to a melt-blown process to produce an antibacterial melt-blown nonwoven fabric.

In an embodiment of the present invention, the natural antibacterial powder is extracted from natural plants, and the components include cinnamaldehyde.

In an embodiment of the present invention, the antibacterial function of the natural antibacterial powder will not fail at a temperature of 200°C to 270°C.

In an embodiment of the present invention, the particle size of the natural antibacterial powder is 40 μm to 50 μm.

In an embodiment of the present invention, the polymer material is melt-blown polymer material particles, and the polymer material includes polyethylene, polypropylene, polyamide or polyurethane.

In an embodiment of the present invention, in the melt blending and granulation process, based on the total weight of the natural antibacterial powder and the polymer material, the added amount of the natural antibacterial powder is 0.5 wt % to 10 wt %.

In an embodiment of the present invention, in the melt blending granulation process, the temperature of the screw is 170°C to 200°C, and the temperature of the die head is 200°C to 210°C.

In an embodiment of the present invention, in the melt blowing process, the screw temperature is 170°C to 230°C, the spinning hole temperature is 230°C to 270°C, and the discharge rate is 30 kg/hr to 60 kg/hr.

In an embodiment of the present invention, the particle size of the antibacterial particles is 2.5 mm to 3.5 mm * 2.0 mm to 3.0 mm, and the moisture content is less than 2000 ppm.

In one embodiment of the present invention, the antibacterial meltblown non-woven fabric is tested by JIS L1902 for Staphylococcus aureus and Bacillus pneumoniae, and the measured Bactereostatic activity value is above 2.2; the antibacterial meltblown nonwoven fabric is tested for golden yellow by ASTM E2149 Staphylococcus and Pneumococcus, the percentage of bacterial reduction is greater than or equal to 99%.

Based on the above, the present invention provides a method for manufacturing an antibacterial melt-blown nonwoven fabric, wherein the natural antibacterial powder and the polymer material are subjected to a melt-blending granulation process to form antibacterial particles, and then the antibacterial particles are subjected to a melt-blown process to make Antibacterial meltblown nonwoven. In this way, the antibacterial powder can be evenly distributed on the surface and the interior of the antibacterial meltblown non-woven fabric, and the antibacterial powder can be prevented from falling off from the antibacterial meltblown nonwoven fabric. Therefore, the disadvantage of the conventional technology that the natural antibacterial agent is easy to fall off and cannot be washed can be improved. , thereby enhancing the antibacterial effect and increasing the convenience of operation.

Hereinafter, embodiments of the present invention will be described in detail. However, these embodiments are exemplary, and the present disclosure is not limited thereto.

As used herein, a range represented by "one value to another value" is a general representation that avoids listing all the values in the range in the specification. Accordingly, the recitation of a particular numerical range includes any numerical value within that numerical range as well as a smaller numerical range bounded by any numerical value within that numerical range, as if the arbitrary numerical value and the smaller numerical range were written in the description in the specification The value range is the same.

The present invention provides a method for manufacturing an antibacterial meltblown nonwoven fabric, which comprises the following steps. The natural antibacterial powder and polymer materials are melt-blended and granulated to form antibacterial particles. After that, the antibacterial particles are subjected to a melt-blown process to produce an antibacterial melt-blown nonwoven fabric.

In this embodiment, the natural antibacterial powder is extracted from natural plants, and the components may include cinnamaldehyde, but the present invention is not limited to this. The antibacterial function of natural antibacterial powder will not fail under the temperature of 200℃ to 270℃. The particle size of the natural antibacterial powder is about 40 μm to 50 μm. When the particle size of the natural antibacterial powder is within this range, the possibility of scattering in the subsequent melt blending and granulation process can be reduced.

In this embodiment, the polymer material is melt-blown polymer material particles, and the polymer material may include polyethylene, polypropylene, polyamide or polyurethane, but the present invention is not limited thereto. The polymer material has no odor, and the melt index (MI) of the polymer material at a temperature of 230° C. and a load of 2.16 kg is in the range of 20 g/10min to 1600 g/10min.

In this embodiment, in the melt blending and granulation process, based on the total weight of the natural antibacterial powder and the polymer material, the added amount of the natural antibacterial powder is about 0.5 wt % to 10 wt %. In addition, in the melt blending granulation process, the screw temperature is about 170°C to 200°C, and the die temperature is about 200°C to 210°C.

In this embodiment, regarding the antibacterial particles formed by the melt blending and granulation process, for example, under the condition that polypropylene is used as the polymer material, the particle size is about 2.5 mm to 3.5 mm * 2.0 mm to 3.0 mm, and contains water. rate is less than 2000 ppm. The melt index (MI) of the antimicrobial particles at a temperature of 170°C and a load of 2.16 kg is in the range of 150 g/10min to 400 g/10min, and the filter test value is 2 bar to 4 bar.

In this embodiment, in the melt blowing process, under the condition that polypropylene is used as the polymer material, the screw temperature is about 170°C to 230°C, the spinning hole temperature is about 230°C to 270°C, and the discharge rate is about 30 kg/hr to 60 kg/hr.

In this embodiment, for the antibacterial meltblown nonwoven fabric made by the meltblown process, the tensile strength in the longitudinal direction (MD) is greater than or equal to 7, and the transverse direction (CD) is greater than or equal to 6. In addition, the antibacterial meltblown non-woven fabric was tested by JIS L1902 for Staphylococcus aureus and pneumoniae, and the measured Bactereostatic activity value was above 2.2; the antibacterial meltblown nonwoven fabric was tested by ASTM E2149 for Staphylococcus aureus and pneumoniae, bacteria The percentage reduction is greater than or equal to 99%. The filtration efficiency of the antibacterial meltblown non-woven fabric is greater than or equal to 99% (3 μm), and the pressure difference is less than 20 Pa.

To sum up, the present invention provides a method for manufacturing an antibacterial meltblown nonwoven fabric, wherein a natural antibacterial powder and a polymer material are subjected to a melt blending and granulation process to form antibacterial particles, and then the antibacterial particles are subjected to a meltblown process to obtain an antibacterial particle. Made of antibacterial meltblown nonwoven. In this way, the antibacterial powder can be uniformly distributed on the surface and inside of the antibacterial meltblown non-woven fabric, and the antibacterial powder can be prevented from falling off from the antibacterial meltblown nonwoven fabric. Therefore, the disadvantage of the conventional technology that the natural antibacterial agent is easy to fall off and cannot be washed can be improved. , thereby enhancing the antibacterial effect and increasing the convenience of operation. In addition, the antibacterial melt-blown non-woven fabric of the present invention is tested by JIS L1902 for Staphylococcus aureus and Pneumococcus, and the measured Bactereostatic activity value is above 2.2; when tested by ASTM E2149, Staphylococcus aureus and Pneumococcus reduce bacteria. The percentage is greater than or equal to 99%. Therefore, it can be known that the antibacterial meltblown nonwoven fabric of the present invention has a good antibacterial effect.

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Claims (10)

A manufacturing method of antibacterial meltblown nonwoven, comprising: The natural antibacterial powder and the polymer material are melt-blended and granulated to form antibacterial particles; and The antibacterial particles are subjected to a melt-blown process to produce an antibacterial melt-blown non-woven fabric. The method for manufacturing an antibacterial meltblown nonwoven fabric according to claim 1, wherein the natural antibacterial powder is extracted from natural plants, and the components include cinnamaldehyde. The method for manufacturing an antibacterial meltblown nonwoven fabric according to claim 1, wherein the antibacterial function of the natural antibacterial powder will not fail at a temperature of 200°C to 270°C. The method for producing an antibacterial meltblown nonwoven fabric according to claim 1, wherein the particle size of the natural antibacterial powder is 40 μm to 50 μm. The method for manufacturing an antibacterial melt-blown nonwoven fabric according to claim 1, wherein the polymer material is a melt-blown polymer material particle, and the polymer material comprises polyethylene, polypropylene, polyamide or polyurethane. The method for manufacturing an antibacterial meltblown nonwoven fabric according to claim 1, wherein in the melt blending and granulation process, the natural antibacterial powder is based on the total weight of the natural antibacterial powder and the polymer material. The body is added in an amount of 0.5 wt% to 10 wt%. The method for manufacturing an antibacterial meltblown nonwoven fabric according to claim 1, wherein in the melt blending and granulation process, the temperature of the screw is 170°C to 200°C, and the temperature of the die is 200°C to 210°C. The method for manufacturing an antibacterial meltblown nonwoven fabric according to claim 1, wherein in the meltblown process, the screw temperature is 170°C to 230°C, the spinning hole temperature is 230°C to 270°C, and the discharge rate is 30 kg/hr to 60 kg/hr. The method for manufacturing an antibacterial meltblown nonwoven fabric according to claim 1, wherein the particle size of the antibacterial particles is 2.5 mm to 3.5 mm * 2.0 mm to 3.0 mm, and the moisture content is less than 2000 ppm. The manufacturing method of the antibacterial meltblown non-woven fabric according to claim 1, wherein the antibacterial meltblown nonwoven fabric is tested by JIS L1902 for Staphylococcus aureus and Pneumococcus, and the measured Bactereostatic activity value is above 2.2; The antibacterial meltblown non-woven fabric is tested by ASTM E2149 for Staphylococcus aureus and Pneumococcus, and the bacterial reduction percentage is greater than or equal to 99%.