KR100543279B1 - Extraction ? Application of Antibacterial ? Antifungal Agents for Textile - Google Patents

Abstract

The present invention relates to the extraction and composition of a natural antimicrobial agent from the surgical bark of Ginkgo biloba fruit, and has excellent safety, antibacterial and antifungal properties of plant natural antibacterial and antifungal (Antifungal) agent It is to provide a way to supply efficiently.

Antibacterial, Antibacterial, Ginkgo

Description

Extraction & Application of Natural Antibacterial and Antifungal Agents for Textiles {Extraction & Application of Antibacterial & Antifungal Agents for Textile}

Antimicrobial agents currently applied to textiles can be classified into chemical synthetic and natural products, and in most cases, chemical synthetic antimicrobial agents are being applied. However, despite the excellent antimicrobial activity, chemical synthetic antimicrobial agents have a lot of non-selective factors in the human body and the natural ecosystem, and are currently being restricted in practical use.

In other words, when cotton fibers treated with chemical synthetic antimicrobial agents are decomposed in nature, the microorganisms capable of decomposing the fibers are not easily accessible, thereby exposing the environmental harmful effects of the synthetic fibers.

On the other hand, chitosan and the like is applied to the fiber as a natural product antimicrobial agent has a high cost burden, and has a limitation that the Pad-Predry-Cure process should be applied in the application method. In addition, the natural product antimicrobial agent is weak in human toxicity, but relatively low antibacterial activity and unstable to the external environment is the most, the amount of extraction is very small and practical use is very limited.

There is hardly any conventional technology for processing materials for textiles based on ginkgo biloba, and there is a method for manufacturing health clothing using natural herbal plants (Korean Patent Laid-Open Patent No. 2001-0109714) and in health using natural herbal plants (registration number). : 20-0195970) shows that when the extract made from ginkgo vaginally made from liquid natural dyes and applied to silk fiber, it is effective for diseases commonly mentioned in Chinese medicine such as hypertension, neuralgia, antioxidant, pulmonary tuberculosis, etc. .

These two patents will be said to have a substantial difference from the present invention in terms of dyeing materials for natural dyeing. In addition, the antibacterial and antifungal agents extracted from the outer skin of the fruit of the Ginkgo biloba obtained in the present invention are excellent antibacterial and antifungal (Antifungal) by using at the same time or before and after dyeing the synthetic dyes. Because it shows the effect in detail, there is an intrinsic difference in its application method and extraction method.

Given the growing realities of environmental and health concerns, the universalization of eco-friendly and human-friendly antibacterial agents can eliminate the source of secondary infections caused by harmful microorganisms that are parasitic on fiber. It will gradually expand.

Under these circumstances, we attempted to extract natural antibacterial materials derived from oral ginkgo biloba, and we conducted various and specific studies from our research team. Antibacterial and antifungal effects were obtained.

Ginkgo biloba fruit is called Ginkgo Semen, and it is used as a medicine in Chinese medicine such as Jinhae, expectorant, asthma, oil well, and nourishment. The separated components are ginkgo acid and ginkgol hydroginkgolic acid. Bilobol, ginngl ginkgetin asparagin, tannic acid, etc., and the effects identified in modern pharmacology have antibacterial and antifungal effects.

As described above, the present invention provides a method for efficiently supplying a plant antibacterial agent with excellent safety and excellent antimicrobial activity, and to provide a technology for applying the same to an antibacterial and antifungal material for textiles. It has a main purpose.

In the present invention, the outer surgical bark of the fruit of the ginkgo biloba is extracted in a solvent of 1: 1-1: 50 in one or more solvents selected from water, methanol, ethanol, isopropanol, chloroform, ethyl acetate, acetone, acetonitrile, and the like. The mixture is extracted at a ratio and filtered to obtain a dark brown extract, or a dark brown liquid component is obtained by applying pressure to the outer skin of the fruit of the ginkgo without extracting solvent to obtain a dark brown liquid component, which is used as an antibacterial and antifungal material for textiles. It is aimed at application.

The antibacterial (Antibacterial) and antibacterial (Antifungal) is a natural product, the safety is guaranteed, and even in the small amount of use, the antibacterial (Antibacterial) and antibacterial (Antifungal) effect on cotton fibers, and the application method for the fiber It is easy and has various features.

Hereinafter, an embodiment of the present invention. Although a test etc. are demonstrated in detail, this invention is not limited to these examples, Each Example, the test example, etc. were repeated and confirmed the reproducibility of the result.

Example 1

The outer grafts of the ginkgo biloba are mixed with an extraction solvent (at least one solvent selected from water, methanol, ethanol, isopropanol, chloroform, ethyl acetate, acetone, acetonitrile, etc.) at a ratio of 1: 1-1: 200. The mixture was extracted, filtered and the filtrate was concentrated under reduced pressure to obtain a dark brown concentrate in a yield of 10 to 35% by weight.

    Concentrate: 10 parts

    Water: 40 to 200 parts

    Emulsifier: 1-20 parts

The above composition was mixed and left standing for one day, filtered, and 5-20% by weight of the composition was obtained based on the concentrate.

Example 2

The outer skin of the ginkgo biloba is mixed with water at a ratio of 1: 1 and extracted at 40∼70 ℃. The filtrate is filtered and left for 1 ~ 3 days, and then filtered again to give a dark brown extract. Get A composition was prepared in the same manner as in Example 1 such that the extract contained 5 to 20 wt%.

Example 3

The outer skin of the fruit of Ginkgo biloba was mixed with water as an extraction solvent at a ratio of 1:50, and extracted at 40 to 70 ° C. After filtration, the filtrate was left for 1 to 3 days and then filtered again to give a dark brown extract. Get A composition was prepared in the same manner as in Example 1 such that the extract contained 5 to 20 wt%.

Example 4

The outer skin of the ginkgo biloba was mixed with water at a ratio of 1: 100 in the extraction solvent, and extracted at 40 to 70 ° C. The filtrate was filtered and left for 1 to 3 days, after which the filtrate was again filtered and dark brown extract. Get A composition was prepared in the same manner as in Example 1 such that the extract contained 5 to 20 wt%.

Example 5

The outer skin of the ginkgo biloba was mixed with water at a ratio of 1: 100 in the extraction solvent, and extracted at 40 to 70 ° C. The filtrate was filtered and left for 1 to 3 days, after which the filtrate was again filtered and dark brown extract. Get A composition was prepared in the same manner as in Example 1 such that the extract contained 5 to 20 wt%.

Example 6

The outer skin of the fruit of Ginkgo biloba was mixed with water as an extraction solvent at a ratio of 1:30 and extracted at 80 to 100 ° C. After filtering the filtrate, the filtrate was left for 1 to 3 days and then filtered again to give a dark brown extract. Get A composition was prepared in the same manner as in Example 1 such that the extract contained 5 to 20 wt%.

Example 7

The outer skin of the ginkgo biloba is pressed under pressure to obtain a dark brown liquid component, which is filtered through a cotton cloth to obtain a dark brown extract. A composition was prepared in the same manner as in Example 1 such that the extract contained 5 to 20 wt%.

[Test Example 1]

Refined Bleached Cotton Fiber

  Forget-me-not: 20-70g / l,

  Reaction dye (low temperature type, high temperature type): 0.001 to 10% by weight,

  Soda ash: 5-50g / l

  Example 1-The composition prepared in [Example 7]: 0.2 to 10% by weight based on the cotton fiber

  The composition was placed in a dyeing vessel with a bath ratio of 1: 5 to 1: 100, heated and maintained at 60 to 80 ° C. for 20 to 40 minutes, followed by washing with water and drying.

  [Test Example 2]

  After the same dyeing by the dyeing method of Test Example 1 without adding a processing agent, the fabric was immersed in a solution of 1 to 20 g / l of the composition prepared in [Example 1] to [Example 7] and sufficiently wetted. After the mangle was used to 30 to 150% pick-up, and then dried at 100 to 120 ℃ for 5 to 10 minutes and then treated at 140 to 170 ℃ for 1 to 10 minutes, washed with water and dried.

  [Test Example 3]

  Examples 1 to 20 g / l of the composition prepared in Example 7 were heated to a bath ratio of 1:10 to 1: 100 for water, held at 80 to 100 ° C. for 20 to 40 minutes, and washed with water. And dried.

The antimicrobial TEST of the fabrics treated in Test Example 1, Test Example 2 and Test Example 3 was carried out by the KS K0693-2001 method, and [Table 1] shows the test results.

[Table 1] Antimicrobial activity by KS K 0693-2001 method

As described above, the present invention provides an antibacterial and antifungal agent as a natural product, and has an excellent antibacterial and antifungal effect on cotton fibers even when used in trace amounts. The application method is easy and has various characteristics.

Claims (4)

Extract the bark of the bark of Ginkgo biloba into the extraction solvent (at least one solvent selected from water, methanol, ethanol, isopropanol, chloroform, ethyl acetate, acetone, acetonitrile, etc.) in a ratio of 1: 1-1: 200 The filtrate was concentrated under reduced pressure, and the filtrate was concentrated under reduced pressure to obtain a dark brown extract in a yield of 10 to 35% by weight, to which an antibacterial and antifungal fiber was obtained. , Manufacturing method of deodorizing composition The antibacterial, antifungal, and deodorizing composition for textiles is formed by applying a dark brown extract by applying pressure to the outer skin of the fruit of Ginkgo biloba without extracting solvent, and adding emulsifier and water to the composition. Manufacturing method The process of obtaining the composition by mixing the outer skin of the fruit of Ginkgo biloba with the extraction solvent at a ratio of 1: 1 ～ 1: 200 and extracting it at 40∼100 ℃ to obtain a dark brown extract, and adding emulsifier and water to it. Method for producing antibacterial (Antibacterial) and antibacterial (Antifungal), deodorizing composition for textiles delete