JP2008231593A - Antibacterial and deodorizing fiber material by using aloe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve problems such that recently widely used artificial organic antibacterial agents or inorganic (metal-based) antibacterial agents are inexpensive and can impart a potent antibacterial property, but give a large load to the environment and have a harmful property to human bodies, which can be a cause of allergy, etc. <P>SOLUTION: The antibacterial and deodorizing effect can be imparted to the fiber by applying the powder or a hot water extract of Aloe arborescens widely used as a health food or cosmetic, on the fiber surface. Since the Aloe arborescens is a naturally derived, the load to the environment or side effects to human bodies are small. Further, since it has heat resistance, it can be used also for dye-processing. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a functional fiber material having effects such as antibacterial and deodorizing effects using aloe, which is a natural product-derived antibacterial agent capable of suppressing the generation and propagation of pathogenic microorganisms.

  In recent years, incidents caused by various bacteria such as food poisoning incidents caused by O-157 bacteria and Staphylococcus aureus have frequently occurred. In addition, damages caused by nosocomial infections such as MRSA, Pseudomonas aeruginosa, and Klebsiella pneumoniae are constantly occurring, which is a major issue for modern medicine. In addition, moisture increases from the rainy season to summer, and bacteria, mold, mites, etc. are generated due to insufficient ventilation. Under such circumstances, interest in antibacterial processed products among consumers has increased remarkably in recent years, and various antibacterial processed products are on the market. Specifically, antibacterial processing is applied not only to textile products but also to a wide variety of products such as kitchen products, bathroom / toilet products, and home appliances.

  Moreover, in order to preserve the quality of various products such as foods, pharmaceuticals, and cosmetics for a long period of time, it is necessary to prevent spoilage caused by microorganisms and the generation of bad odors associated therewith.

  Conventionally, antibacterial agents (sterilizing agents) that suppress the generation and propagation of mold and microorganisms or kill them are used for fiber materials. For example, silver-based inorganic antibacterial agents that are most commonly used as inorganic antibacterial agents, antibacterial agents that use the antibacterial properties of copper and zinc-based metal ions, and organic antibacterial agents are quaternary. There are those using ammonium salts, phenols and alcohols.

  In particular, in recent years, antibacterial processing of textile products has a method of using a silver-based antibacterial agent as an antibacterial agent because it is inexpensive, can impart strong antibacterial properties, and has little influence on the human body. It is becoming common.

  Antibacterial fiber products made of silver ions have many elution type drugs that exhibit antibacterial properties by elution of silver ions, and zeolites, clay minerals, glass, and the like are used as carriers for the elution type drugs. Also, the fiber solution is impregnated with a mixed solution containing these antibacterial agents and a binder resin and dried, and the mixture solution containing the antibacterial agent is sprayed on the fibers using a method of imparting antibacterial properties by drying or spraying. Further, there may be mentioned a method for imparting an antibacterial effect by kneading these antibacterial agents at the time of melting a plastic or synthetic fiber.

  Antibacterial agents derived from natural products include plant essential oils such as hinokitiol, plant extracts, chitin made from shellfish shells, chitosan, scallops, and fired shell powder obtained by firing shellfish shells. Can be mentioned. (For example, patent document 1, patent document 2, patent document 3, patent document 4).

Patent Publication 2005-132804 (Claim 2) Patent Publication 2001-329463 (Claims 1-2) Patent Publication No. 5-148758 Patent Publication 2002-121554

  Also mentioned is a method of isolating from sugar beet an antibacterial protein that is toxic or growth-inhibitory in any environment against any microorganism including bacteria, viruses and especially fungi. This antibacterial protein is expected to be put to practical use in the future as one of the naturally derived antibacterial substances, though its usage is limited. (For example, Patent Document 5)

Patent Publication 6-340696

  However, the metal ions that are the basis for the antibacterial properties of the metal antibacterial agents described above are restricted in their use from the viewpoint of harm to the human body and environmental pollution, and the standard value in drinking water is Many are provided. In addition, among silver antibacterial agents, silver antibacterial agents, which are said to be relatively less harmful to the human body, have the disadvantage that their bactericidal activity is reduced when silver halides are combined with halogen components such as chlorine. Have Furthermore, the silver-based inorganic antibacterial agent is insufficient as an antibacterial agent because it has the disadvantage that it is discolored by heat and light and loses its effect even in the presence of a urinary sulfur compound.

  In addition, artificial organic antibacterial agents including quaternary ammonium salts are often restricted in use or set as standard values. Further, these antibacterial agents have a problem that they cannot be disposed of because they have a large environmental load due to side effects such as allergic reactions to the human body and toxicity to plants.

In addition, essential oil components such as hinokitiol, which is a natural antibacterial agent, easily loses its effect due to heat, and are volatile, so its effectiveness is low unless it is in a sufficiently sealed space. there were.

  On the other hand, the antibacterial protein isolated from sugar beet is also a polymer of amino acids, although it has a relatively low environmental impact, so its function is affected by heat treatment such as autoclave, extreme acid and alkali treatment, and textile processing chemicals. Is not suitable for dyeing such as adsorbing to the fiber surface. In view of the above, there has been a demand for an antibacterial agent that has less burden on the human body and the environment and can be applied to fiber processing.

  The present invention has been proposed in view of the above. In the dyeing process, hot water extract of dried dried aloe leaves, dried aloe leaves themselves, or fresh aloe leaves are squeezed into fiber materials such as woven, knitted, nonwoven fabric, etc. The fiber aggregate is processed into a powder by using a pulverizer or the like to give antibacterial and deodorant effects, anti-skin inflammation effects, antiallergic effects, and antiatopic effects.

  Aloe is already used as a health food and cosmetics, so it is well known, and because it is a plant, it is not harmful to the human body unless it is excessively ingested. There is no. In addition, when a pomace after squeezing aloe raw leaves is used, it will lead to recycling of what was originally a waste.

  Furthermore, among aloe, yellow aloe is the most commonly cultivated variety in Japan and thus has an advantage of being easily available.

  The aloe used in the present invention is derived from a natural product and contains an antibacterial component in a water-soluble component. Therefore, it can be applied to any fiber material, and further has heat resistance, so that the antibacterial effect is also exhibited in the dyeing process. There is no loss. Also, coloring and antibacterial deodorization processing are performed on the fiber surface at the same time by mixing hot water extract of dried dried aloe leaves, dried aloe leaf powder or raw aloe leaves in the pigment or dye during printing. It is also possible.

  Kidachi aloe has been reported for a long time to have various medicinal effects and is used as a health food and cosmetics. Furthermore, by using the fiber assembly treated in this way as a mask, pillow cover, clothes, curtains, wallpaper, etc., disinfection sterilization and antibacterial deodorization effects are produced, and there are few side effects on the human body and environmental impact. It is possible to provide an antibacterial fiber material.

  In particular, the antibacterial fiber assembly using aloe powder or pomace after squeezing aloe leaves shows at least strong antibacterial performance against Staphylococcus aureus, Streptococcus pneumoniae, Escherichia coli, Pseudomonas aeruginosa, and In addition, at least deodorizing property against ammonia gas was confirmed.

  Moreover, even when the aloe extract was used, at least antibacterial activity against Staphylococcus aureus which is a gram-positive bacterium and deodorizing property against ammonia gas were confirmed.

  Therefore, the present invention can be applied not only to the textile industry but also to a wide range of fields such as the medical, food and cosmetic fields.

  The following describes the specific processing method and functionality test results, but it should be understood that this description does not limit the scope of claims of this patent and may be changed as appropriate according to the intended use and purpose. Is possible.

  First, dried dried alder leaves were processed into powder using a pulverizer or the like. Next, a nonionic emulsion thickener, water, a reducer made of turpentine and a binder resin made of an acrylate ester resin emulsion mixed in an arbitrary ratio between 100: 1 to 3: 1 in weight. After mixing the dried leafy aloe leaf powder so that the ratio becomes 0.1 to 10%, and sufficiently stirring, it is uniformly coated on a fiber material such as a nonwoven fabric by using a printing technique using a silk screen. Moreover, you may use for the said powder the pomace after extracting a dried leaf of a firefly and water sufficiently, and fully squeezing.

  In the case of using a hot water extract of dried yellowfin aloe leaves, a nonionic emulsion thickener, water, a reducer composed of turpentine and a binder resin composed of an acrylic ester resin emulsion is between 100: 1 and 3: 1. The above hot water extract is mixed so that the weight ratio is 1% to 50% in the mixture at an arbitrary ratio, and after sufficiently stirring, the printing technique is the same as when using aloe powder. Is applied uniformly on a fiber material such as a non-woven fabric.

  The hot water extract of Kidachi aloe used in the present invention is powdered by pulverizing dried leaves of Kidachi aloe using a ball mill, mixed with distilled water at a ratio of 1:10, and heated to 95 ° C. Then, it is maintained at 95 ° C. for 15 minutes and then cooled to room temperature by natural cooling. You may use what removed the residue of dried yellowfin aloe leaves by centrifugation at 3000 rpm for 15 minutes.

  The dried leaf of Kidachi aloe was processed into powder using a pulverizer or the like. Next, a weight ratio of 10% is obtained by mixing a nonionic emulsion thickener, water, a reducer made of turpentine and a binder made of an acrylate resin emulsion in a ratio of 8: 1. After mixing the dried leafy aloe leaf powder and stirring sufficiently, the antibacterial and deodorant nonwoven fabric was obtained by uniformly applying to the rayon nonwoven fabric using a printing technique. Table 1 below shows the results of the antibacterial quantitative test by the antibacterial test method of JIS L1902 textiles, and Table 2 shows the results of the deodorization test against ammonia gas.

  The nonionic emulsifying thickener used in this example is biscon S-500HN of Shin-Nakamura Chemical Co., Ltd., and as a binder made of an acrylate resin emulsion, Dainippon Seisakusho Co., Ltd. Binder 353 (M) was used.

  Thus, the antibacterial nonwoven fabric obtained by the present invention has high antibacterial performance against gram-positive bacteria, Staphylococcus aureus, gram-negative bacteria, Klebsiella pneumoniae, and Escherichia coli, and deodorizing ammonia gas. The result showed that it also has an effect.

  Example (1) except that the hot water extract of dried dried alga leaves was mixed in the mixture of the reducer and the binder to a weight ratio of 30% instead of the dried dried alga leaves of Example 1. In the same manner as above, an antibacterial rayon nonwoven fabric was obtained. Table 3 shows the antibacterial test results, and Table 4 shows the deodorization test results.

  As described above, the rayon nonwoven fabric treated with the hot water extract of dried dried leaf powder also has high antibacterial performance against gram-positive bacteria, Staphylococcus aureus, and also has a deodorizing effect on ammonia gas. The result is that.

  The present invention is applicable not only to medical products such as antibacterial masks, pillow covers, and paper diapers, but also to clothing products and industrial materials such as antibacterial and deodorant wallpaper by applying aloe powder on a plastic sheet, for example. be able to. Moreover, since it can apply also to a handrail and a handle | steering-wheel by adhere | attaching what apply | coated directly or on the nonwoven fabric etc. on foaming urethane, it can also be utilized as machine parts, such as a motor vehicle.

It is explanatory drawing which showed the method of apply | coating dried yellow leaf aloe leaf powder on a nonwoven fabric. (Example 1) It is explanatory drawing which showed the method of apply | coating Kidachi aloe extract on a nonwoven fabric. (Example 2)

Explanation of symbols

1 Rayon nonwoven fabric
2 Silk screen
3 Squeegee to apply evenly on silk screen
4. Mixer of reducer, binder, dried dried leaf powder
5 Mixture of reducer, binder, and hot water extract of Kidachi aloe

Claims (8)

Squeeze after squeezing dried aloe leaf powder or fresh aloe leaves into a mixed solution in which a reducer composed of an emulsifying thickener, water and an organic solvent and a binder resin are mixed at a ratio of 100: 1 to 3: 1. The surface of a fiber material made of woven fabric, knitted fabric, non-woven fabric, etc. using a silk screen and squeegee designed with an arbitrary pattern, mixed at a weight ratio of 0.1% to 10% A functional processing method that gives an antibacterial and deodorizing effect by evenly coating on top. The aloe extract is 1 in weight ratio in a mixed solution in which a reducer composed of an emulsifying thickener, water and an organic solvent and a binder resin are mixed at a weight ratio of 100: 1 to 3: 1. By applying a mixture of 50% to 50% uniformly on a fiber material surface made of woven fabric, knitted fabric, non-woven fabric, etc. using a silk screen and squeegee designed with an arbitrary pattern, Functional processing method with antibacterial and deodorant effect. The surface of the fiber material made of woven fabric, knitted fabric, non-woven fabric or the like is impregnated in a mixed solution obtained by mixing a binder resin made of an acrylate resin emulsion in the aloe extract so as to have a bath ratio of 5: 1 to 100: 1. Functional processing method to give antibacterial and deodorizing effect. The functional processing method according to claim 1, wherein the binder resin comprises at least one of a urethane resin, a vinyl acetate resin, and an acrylic resin. The functional processing according to claim 1 or 2, wherein the emulsion thickener comprises at least one of a polyoxyethylene emulsion thickener, an acrylic emulsion thickener, and a natural emulsion thickener. Method. The functional processing method according to claim 1 or 2, wherein the organic solvent comprises at least one of a chlorine solvent, a hydrocarbon solvent, and an ester solvent. The functional fiber material which has the antibacterial deodorizing property made using the functional processing method in any one of Claims 1-3 From a mask, a pillow cover, a paper diaper, a wallpaper, a handrail cover, a sock, and underwear using the functional fiber material produced by using the functional processing method according to any one of claims 1 to 3 in at least one part thereof Hygiene materials or daily necessities selected.