JP2001131866A - Antifungal and antibacterial treatment of fiber with turmeric extract - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a production process for antifungal fiber products that have excellent fungistatic action by utilizing an extract from turmeric (Curcuma longa). SOLUTION: In this invention, fiber products made of cotton, hemp, silk, and the like, are pretreated with a pretreatment solution including a cationizing agent. The catioinized fibers are brought into contact with a solution including curcumin, tannin and saponin in the turmeric. Then, the turmeric extract-treated fiber product is treated with a mordant solution including a mordant to effect the fixing reaction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an excellent production of a plant antibacterial process characterized by containing an extract of turmeric having high antibacterial properties as an active ingredient.

[0002]

2. Description of the Related Art As a conventional antibacterial processing agent, organic (36)
Group) and inorganic type (group 1), and about 110 or more antibacterial agents are used as a whole. Each has its pros and cons, and some of them have skin irritation, high environmental load, and ecosystem abnormalities. Excessive antibacterial processing is abolished by the structure of the dye molecule, and selective sterilization (discriminating the type of microorganism and sterilizing only the harmful microorganisms of interest) is possible. Development is desired.

[0003]

In the present invention, curcumin, tannin and saponin contained in a turmeric extract have stable and high antibacterial properties, and as a result of intensive studies in view of such circumstances, conventional chemicals It is an object of the present invention to provide a method for improving the adverse effect on human skin caused by an antibacterial processing agent, and improving the adverse effect on the ecosystem due to the disposal of a chemical antibacterial agent on the global environment.

[0004]

SUMMARY OF THE INVENTION According to the present invention, there is provided a method for producing an antibacterial fiber product having a bacteriostatic and bacteriostatic action using a turmeric extract solution. After the treatment, the turmeric is brought into contact with a solution containing an extract of curcumin, tannin and saponin to cause a reaction, and then is brought into contact with a mordant solution containing a mordant.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The turmeric extract used in the present invention is obtained by extracting from a root.

The turmeric used in the present invention is Turmeric, a ginger family, mainly from Southeast Asia. A dried product of this plant is available as a commercial product, and is used as a herbal medicine for hemostatic agents, hemorrhoids, wounds, and the like, and is often used as a main component of curry powder, which is a food.

[0007] The fiber product is subjected to a cationization treatment by contacting it with a pretreatment liquid containing a cationizing agent, followed by contact with a solution containing an extract of turmeric, followed by reaction with a mordant liquid containing a mordant. , Light fastness is improved.

The fiber material used in the method of the present invention is preferably a natural fiber such as cotton, hemp, silk and wool. The shape of the fiber may be any of yarn, woven fabric, knitted fabric and non-woven fabric.

In the present invention, the fibers are subjected to desizing, scouring, bleaching and the like, if necessary, and then contacted with a pretreatment liquid containing a cationizing agent for cationization treatment. Various commercially available cationizing agents can be used.

The bath ratio during the cationization treatment is often about 20 to 100 times the weight of the fiber product, the bath temperature is about 60 ° C. to 90 ° C., and the treatment time is about 30 to 90 minutes. The cationizing agent concentration is set appropriately.

The bath ratio during the reaction treatment with the solution containing the turmeric extract should be about 20 to 100 times the weight of the fiber product, the bath temperature should be 60 ° C. to 90 ° C., and the treatment time should be 30 to 90 minutes. , But is not necessarily limited to this range. The concentration of the solution containing the turmeric extract can be selected from a wide range depending on the purpose of the antimicrobial product.

After the reaction treatment, it is contacted with a mordant solution containing a mordant, and this step is an optional step, and the curcumin, tannin, and saponin contained in the turmeric extract solution have a good fixation to the fiber and a high color fastness. It is more preferable to provide them at the point.

As the mordant, besides aluminum acetate, aluminum sulfate, aluminum chloride and alum, iron mordant (iron acetate, ferrous sulfate, iron nitrate), copper mordant (copper salt) and the like can also be used. .

The bath ratio at the time of mordant is 1 to the weight of the fiber product.
The bath temperature is usually about 0 to 100 times, the bath temperature is from normal temperature to boiling temperature, and the treatment time is about 10 minutes to 1 hour, but is not necessarily limited to this range.

After completion of the antibacterial processing step of the fiber with the turmeric extract solution, post-treatments such as soaping and washing with water are carried out as appropriate, and then sun drying or hot air drying.

[0016]

EXAMPLES Next, examples will be described in detail. This description is not limited to this. It should be noted that "%" shown in the examples indicates% by weight.

Turmeric hot water extract 1000 g of water is added to 100 g of turmeric powder,
After boiling and extraction at 00 ° C. for 2 hours, the mixture was filtered to obtain a hot water extract of turmeric.

Pretreatment of cotton fabric 100 g of cotton fabric and 2000 ml of tap water (bath ratio 1:20)
And 2% o.c. of a cationizing agent (Danshade 185 manufactured by Nitto Boseki Co., Ltd.) w. f, infiltrate at room temperature for 25 minutes, keep at 65 ° C. for about 10 to 30 minutes, keep for 5 to 15 minutes, then add 3 g / liter of NaOH (flakes), 3/10 first, then 7/10
In addition, heating was performed at about 85 ° C. for 30 to 1 hour. Next, the cotton fabric is taken out and washed with water, and acetic acid 1 g / liter (5
(ml / liter), and the mixture was neutralized and permeated at 40 ° C. for 5 minutes. Finally, it was washed with water and dehydrated to obtain a cation-treated cloth.

Dyeing-mordanting reaction 100 g of the above-mentioned cation-treated cloth is added to the turmeric extract solution, heated, and subjected to a heating dyeing reaction at 85 ° C. for 30 minutes to 1 hour, followed by washing with water and aluminum acetate solution. 2 g / liter is dissolved in 10 to 20 times the volume of water, and the dyeing-treated cloth adjusted to this solution is heated at 30 ° C. for 20 minutes to react, followed by washing with water, dehydration,
Dried.

Antibacterial test Using the turmeric-dyed cotton cloth obtained above, Staphylococcus aureus ATC was used.
C 6538P) and Klebsiella (Klebsiell)
a. pneumoniae ATCC 4352) was tested for antibacterial activity, and the following antibacterial properties were observed for these bacteria. Table 1 shows the results.

[0021]

[Table 1] Test method: Unified test method (Fiber Product New Function Evaluation Council) Test bacteria: Staphylococcus
s aureus ATCC 6538P) Klebsiella pneumonia
e ATCC 4352) Washing method: JIS L 0217 103 (however, J
(Use AFET standard detergent) <Standard value of antibacterial and deodorant: Bacteriostatic activity value> 2.2 or more><Bactericidal processing standard value: Bactericidal activity value> 0.0 or more>

Claims (1)

[Claims] Claims 1. After cationizing a textile product by contacting it with a pretreatment solution containing a cationizing agent, the fiber product is contacted with a solution containing an extract of curcumin and tannin and saponin contained in turmeric, and reacted. A method for producing an antibacterial fiber product having a bacteriostatic and bacteriostatic action using a turmeric extract solution, which is brought into contact with a mordant solution containing a mordant.