TWI711739B - Method for preparing long-acting broad-spectrum antibacterial material fiber cloth - Google Patents

Abstract

A method for preparing long-acting broad-spectrum antibacterial fiber cloth, the process method mainly includes: a natural fiber textile is subjected to a resin impregnation process, which is to infuse the textile in benzalkonium chloride antibacterial agent and/quaternary ammonium salt , The quaternary phosphonium salt compound antibacterial agent is evenly mixed to obtain the mixed solution; then the textiles that have completed the resin impregnation process are dried at a high temperature at 130~170℃, and are firmly combined with the material fiber fabric through the bonding method between chemical bonds ; Afterwards, wash the fabric containing the compound antibacterial agent with water for 1~2 minutes to remove the residual compound antibacterial agent; dry the fabric at a low temperature at 60~70℃, and make the NH sterilization bond of the sterilizing fiber go through the chlorine bleaching method Combining with chloride ions, it transforms into a more powerful N-CL bactericidal bond, which can kill bacteria more quickly. CL will attach to the cell wall of the bacteria to quickly kill the bacteria, and the compound will return to NH after the action. Key; Therefore, it has the function of reproliferating and sterilizing by repeated chlorine bleaching, and then obtains the cloth of long-lasting antibacterial fiber.

Description

Preparation method of long-acting broad-spectrum antibacterial material fiber cloth

The invention relates to a preparation method of a long-acting broad-spectrum antibacterial material fiber cloth, in particular to a preparation method and process of a long-acting broad-spectrum antibacterial fiber cloth.

With the improvement of living standards, people have higher and higher requirements for fiber fabrics for daily necessities, especially bedding fiber fabrics and household fiber fabrics. Because these fiber fabrics for daily life are often in contact with the human body, they will inevitably leave sweat, stains, etc. on their surface. However, such fiber fabrics for domestic daily use have a long time of use and fewer cleaning and sterilization times. It is made of cotton and linen rich in cellulose and protein, which provides a favorable living environment for bacteria and viruses to breed.

In addition, as far as the fiber fabrics of various household daily necessities are concerned, they are very easy to absorb dust, bacteria, viruses, etc., and long-term accumulation in various fiber fabrics will endanger human health for a long time. Therefore, how to antibacterial or sterilize the fiber cloth of daily necessities becomes the focus of its preparation.

The purpose of the present invention is to provide a method for preparing a long-acting broad-spectrum antibacterial material fiber cloth, which makes the fiber cloth have long-lasting, long-acting and broad-spectrum antibacterial properties while saving Save manufacturing process steps and production costs.

To achieve this goal, the preparation method of the present invention includes the following steps:

(1) Washing with water: The composite antibacterial agent is mixed uniformly to obtain a mixed liquid, and the cloth is washed with water using the mixed liquid.

(2) High-temperature drying: The fabric of the composite antibacterial agent after washing in step (1) is dried at a high temperature at 130~170℃, and it is firmly combined with the fiber fabric through the bonding method between chemical bonds.

(3) Wash with water: Wash the fabric of the compound antibacterial agent in step (2) with water.

(4) Low-temperature drying: Dry the fabric of the composite antibacterial agent after washing in step (3) at a low temperature of 60~70℃, and make the NH sterilization bond of the sterilizing fiber combine with chloride ions through a chlorine bleaching method to transform it into more The powerful N-CL bactericidal bond can kill bacteria more quickly. CL will attach to the cell wall of the bacteria to quickly kill the bacteria, and the compound will return to the NH bactericidal bond after the action, so it has the ability to survive Repeated chlorine bleaching reproduces the sterilization function, thereby obtaining the long-lasting antibacterial fiber cloth.

The preparation method of the present invention is a fabric prepared through the process after uniformly mixing the composite antibacterial agent and the cloth, and realizes the introduction of the composite antibacterial agent, which can overcome the shortcomings of a large decrease in antibacterial performance after the number of washings increases. .

In the present invention, since the composite antibacterial agent and the cloth are firmly combined with the fiber cloth through the bonding method between chemical bonds, the composite antibacterial agent can be evenly dispersed in the fiber cloth, and its compatibility with the cloth is better. It will produce seepage phenomenon; during the use of fiber cloth, it can effectively inhibit the growth and reproduction of microorganisms. The antibacterial lasts and lasts for a long time. The antibacterial performance is lasting and effective. It can effectively prevent the cotton fabrics used in the bed from breeding harmful microorganisms during use. ,and In addition, the composite has stable antibacterial performance, strong antibacterial long-term effect, and is safe and environmentally friendly; at the same time, it overcomes the problem of the loss of antibacterial agents caused by the traditional impregnation method.

In the present invention, when the concentration of the composite antibacterial agent is relatively high, it can cause damage to the cell wall structure by adsorbing bacteria, and at the same time change the polarization state inside and outside the normal cell membrane, thereby hindering or destroying the molecular transport required by the cell to maintain physiology, leading to Exudation of internal proteins and nucleic acids will eventually cause cell death; when the concentration of the compound antibacterial agent is relatively low, the compound antibacterial agent can remove the lipids in the cell membrane, thereby dissolving the intracellular substance, and part of the organic antibacterial agent can penetrate into the specific tissues of the cell , Replace or destroy the essential ions that maintain the vitality of key enzymes, and can also combine with nucleic acids to destroy the cell’s ability to divide and reproduce, thereby inhibiting or killing bacteria.

In the present invention, the fiber cloth, after the composite antibacterial agent is mixed with the cloth, has a broad-spectrum antibacterial effect on the growth of various bacteria in daily life, and the effect is excellent, so there is no need to add additional specific antibacterial agents; In the production process of fiber cloth, there is no need to readjust the fiber cloth production process, and it can directly produce the fiber cloth needed for daily life and household goods; therefore, discuss the method of the long-acting broad-spectrum antibacterial household goods fiber cloth produced by the present invention It is simpler, faster and cost-saving, and is more conducive to large-scale mass production.

The fiber cloth includes any one of pure cotton fiber cloth, polyester fiber cloth, nylon fiber cloth, linen fiber, wool fiber cloth or silk fiber cloth.

The compound antibacterial agent is a combination of at least two antibacterial agents.

The antibacterial agent includes: benzalkonium chloride antibacterial agent and/quaternary ammonium salt, quaternary phosphonium salt antibacterial agent.

In the present invention, the composite antibacterial agent may be a mixture of benzalkonium chloride antibacterial agents and/or quaternary ammonium salt and quaternary phosphonium salt antibacterial agents. The antibacterial agent is benzalkonium chloride antibacterial agent and/quaternary ammonium salt, quaternary phosphine Salt antibacterial agent or a combination of at least two, there are many polar groups such as hydroxyl and amino groups. The protonated amino group in the molecular structure can absorb negatively charged ions required by microorganisms and bind with the anionic components of the cell wall to hinder cell wall biology Synthesis, thereby inhibiting the growth of microorganisms, can quickly kill bacteria.

The technical feature of the present invention is that since the composite antibacterial agent is closely combined with the fiber cloth along with washing, the fiber cloth can still be guaranteed to have long-lasting and long-lasting antibacterial performance after washing the fiber cloth for many times; further, because of the composite antibacterial agent It is added together with the fabric, thereby reducing the complexity of the production process, thereby greatly saving production costs; the composite antibacterial agent benzalkonium chloride antibacterial agent and/quaternary ammonium salt, quaternary phosphonium salt antibacterial agent and fiber fabric , It is firmly combined with the fabric fiber through the bonding method between the chemical bonds, so the composite antibacterial agent can be evenly dispersed in the fiber fabric, so that the release rate of the antibacterial ions is stable and controllable during the use of the fabric. It takes a long time; the use of at least two combined composite antibacterial agents is added together, which reduces the complexity of the production process, thereby greatly saving production costs, and is more conducive to large-scale mass production of enterprises; the prepared antibacterial fiber cloth has antibacterial effect High and stable, the antibacterial performance against Escherichia coli can still reach more than 99% after washing more than 50 times; the antibacterial performance of Staphylococcus aureus can still reach more than 99%.

The first figure: is a flow chart of the preparation method of the long-acting broad-spectrum antibacterial material fiber cloth of the present invention.

The second figure: the reaction scheme of the bactericidal fiber and chloride ion in the present invention.

In order to make it easier for your examiner to understand the other features and advantages of the present invention and the effects achieved by it more apparent, the present invention is combined with the drawings to describe the features and advantages of the present invention in detail. The following embodiments are The viewpoint of the present invention is further explained in detail, but the scope of the present invention is not limited by any viewpoint.

Please refer to the first and second figures. The present invention discloses a method for preparing a long-acting broad-spectrum antibacterial material fiber cloth. The preparation method includes:

The first step: the first water washing, mixing at least one compound antibacterial agent, and then washing a cloth with the compound antibacterial agent to form a cloth with a compound antibacterial agent.

The second step: high-temperature drying. The fabric of the composite antibacterial agent washed in the first step is dried at a high temperature of 130-170°C, and is firmly combined with the fiber fabric through the bonding method between chemical bonds.

The third step: the second water washing, the composite antibacterial cloth after the high temperature drying in the second step is washed again.

The fourth step: low-temperature drying. The fabric of the composite antibacterial agent after the second washing in the third step is dried at a low temperature at 60~70℃. As shown in the second figure, the NH sterilization key of the sterilizing fiber is subjected to chlorine bleaching. Combining with chloride ions, it transforms into a more powerful N-CL bactericidal bond, which can kill bacteria more quickly. CL will attach to the bacterial cell wall to quickly kill the bacteria, and the compound will return to NH bactericidal bond after action. Therefore, it has the function of reproliferation and sterilization through repeated chlorine bleaching, and the long-lasting antibacterial fiber cloth is obtained.

The composite antibacterial agent may be a mixture of benzalkonium chloride antibacterial agent, quaternary ammonium salt antibacterial agent and quaternary phosphonium salt antibacterial agent.

The composite antibacterial agent can be a mixture of benzalkonium chloride antibacterial agent and quaternary phosphonium salt antibacterial agent.

The composite antibacterial agent may be a mixture of a quaternary ammonium salt antibacterial agent and a quaternary phosphonium salt antibacterial agent.

The preparation method of the present invention realizes the introduction of the composite antibacterial agent after uniformly mixing the composite antibacterial agent and the cloth, and the cloth is prepared through a process, so that the shortcoming that the antibacterial performance is greatly reduced after the number of washing times increases can be overcome.

In the present invention, since the composite antibacterial agent and the cloth are firmly combined with the fiber cloth through the bonding method between chemical bonds, the composite antibacterial agent can be evenly dispersed in the fiber cloth, and its compatibility with the cloth is better. No exudation; in the process of using fiber cloth, it can effectively inhibit the growth and reproduction of microorganisms. The antibacterial is sustainable and long-lasting. The antibacterial performance is lasting and effective. It can prevent cotton fiber products from breeding harmful microorganisms during use, and the complex is antibacterial It has stable performance, strong antibacterial and long-term effect, and the product is safe and environmentally friendly; it also overcomes the problem of the loss of antibacterial agents caused by the traditional impregnation method.

In the present invention, when the concentration of the composite antibacterial agent is relatively high, it can cause damage to the cell wall structure by adsorbing bacteria, and at the same time change the normal polarization state inside and outside the cell membrane, thereby hindering or destroying the molecular transport required by the cell to maintain physiology. Intracellular protein and nucleic acid exudate, eventually causing cell death; when the compound antibacterial agent concentration is relatively low, the compound antibacterial agent can remove lipids in the cell membrane, thereby dissolving intracellular substances, and part of the organic antibacterial agent can penetrate into the cell. Organize, replace or destroy the essential ions that maintain the vitality of key enzymes, and can also combine with nucleic acids to destroy the ability of cell division and reproduction, thereby inhibiting or killing bacteria.

In the present invention, the fiber fabric is mixed with the composite antibacterial agent and Various bacteria that breed in daily life have a broad-spectrum antibacterial effect, and the effect is very good, so there is no need to add additional specific antibacterial agents; in addition, in the production process of antibacterial fiber cloth, there is no need to re-adjust the fiber cloth production process. It can directly produce fiber fabrics for daily necessities; therefore, the method of the long-acting broad-spectrum antibacterial daily necessities fiber fabric produced by the present invention is simpler, faster and cost-saving, and is more conducive to large-scale mass production of enterprises .

The cloth may be a fiber cloth, including any one of pure cotton fiber cloth, polyester fiber cloth, nylon fiber cloth, linen fiber, wool fiber cloth, or silk fiber cloth.

The compound antibacterial agent is a combination of at least two antibacterial agents.

The antibacterial agent includes: benzalkonium chloride antibacterial agent and/quaternary ammonium salt, quaternary phosphonium salt antibacterial agent.

In the present invention, the composite antibacterial agent may be a mixture of benzalkonium chloride antibacterial agents and/or quaternary ammonium salt and quaternary phosphonium salt antibacterial agents.

The antibacterial agent is benzalkonium chloride antibacterial agent and/or quaternary ammonium salt, quaternary phosphonium salt antibacterial agent or a combination of at least two. There are many polar groups such as hydroxyl and amino groups. The protonated amino group in the molecular structure can absorb The negatively charged ions required by microorganisms combine with the anionic components of the cell wall to hinder cell wall biosynthesis, thereby inhibiting the growth of microorganisms and killing bacteria quickly.

The technical feature of the present invention is that since the composite antibacterial agent is closely combined with the fiber cloth along with water washing, the fiber cloth can still be guaranteed to have long-lasting and long-lasting antibacterial performance after washing the fiber cloth for many times. It is added together with the cloth to reduce the complexity of the production process, thereby greatly saving production costs; the composite antibacterial agent benzalkonium chloride antibacterial agent and/quaternary ammonium salt, quaternary phosphonium salt antibacterial agent and fiber cloth are chemically bonded Bond between The method is firmly combined with the fabric fiber, so the composite antibacterial agent can be evenly dispersed in the fiber fabric, so that the release rate of the antibacterial ions during the use of the fabric is stable and controllable, and the sustainability is long; the use of at least two combinations of composite The antibacterial agent is added together, reducing the complexity of the production process, thereby greatly saving production costs, and is more conducive to large-scale mass production of enterprises; the prepared antibacterial fiber cloth has high antibacterial effect and good stability, and it has been washed more than 50 times in water. The antibacterial performance of Escherichia coli can still reach more than 99%; the antibacterial performance of Staphylococcus aureus can still reach more than 99%.

Claims (5)

A preparation method of long-acting broad-spectrum antibacterial material fiber cloth, the preparation method includes: 1. The first water washing: mixing at least one composite antibacterial agent, and then washing a fiber cloth with the composite antibacterial agent to form a composite antibacterial fiber cloth; 2. High-temperature drying: The fabric of the composite antibacterial agent after the first washing is dried at a high temperature of 130~170℃, so that it is firmly combined with the fiber fabric through the bonding method between chemical bonds; 3. The second water washing: the fiber cloth of the composite antibacterial agent after the high temperature drying in the second step is washed for the second time; 4. Low-temperature drying: The fiber fabric of the composite antibacterial agent after the second water washing in the third step is dried at a low temperature at 60~70℃, and the NH sterilization bond of the sterilization fiber is combined with chloride ions through chlorine bleaching. It is transformed into a more powerful N-CL bactericidal bond, which can kill bacteria more quickly. CL will attach to the cell wall of the bacteria to quickly kill the bacteria, and the compound will turn back to the NH bactericidal bond after the action. It has the function of regenerating and sterilizing after repeated chlorine bleaching to complete the long-lasting antibacterial fiber fabric. The method for preparing long-acting broad-spectrum antibacterial material fiber cloth as described in claim 1, wherein the composite antibacterial agent can be a mixture of benzalkonium chloride antibacterial agent, quaternary ammonium salt antibacterial agent and quaternary phosphonium salt antibacterial agent . The method for preparing a long-acting broad-spectrum antibacterial material fiber cloth according to claim 1, wherein the composite antibacterial agent can be a mixture of benzalkonium chloride antibacterial agent and quaternary phosphonium salt antibacterial agent. The method for preparing a long-acting broad-spectrum antibacterial material fiber cloth according to claim 1, wherein the composite antibacterial agent may be a mixture of a quaternary ammonium salt antibacterial agent and a quaternary phosphonium salt antibacterial agent. The method for preparing a long-acting broad-spectrum antibacterial material fiber cloth as described in claim 1, wherein the fiber cloth can be: pure cotton fiber cloth, polyester fiber cloth, nylon fiber cloth, linen fiber, wool fiber cloth or silk fiber cloth one of them.

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