JP2001131873A - Method for producing antibacterial fiber finished by papaya extract solution - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing an antibacterial fiber product having bacteriostatic activities by utilizing an extract of a papaya. SOLUTION: A fiber product comprising a cotton, a hemp, a silk, or the like, is brought into contact with a pretreating liquid containing a cationizing agent to carry out a cationizing treatment, bringing the cationized product into contact with a solution containing the extract of papain, chymopapain and lysozyme, included in the papaya to react them, and bringing the resultant fiber product with a mordant solution containing a mordant to attach the mordant on the fiber and to react them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an excellent process for producing an antibacterial plant which is characterized by containing an extract of papaya 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, in view of such a situation, as a result of intensive studies, the papain, chymopapain and lysozyme contained in the papaya extract have a stable and high antibacterial activity, and the conventional chemical antibacterial activity. It is an object of the present invention to provide a method which contributes to improving the adverse effect on human skin by a processing agent and improving the adverse effect on the global environment due to the disposal of chemical antibacterial agents.

[0004]

According to the present invention, there is provided a method for producing an antibacterial fiber product having a bacteriostatic and bacteriostatic action using a papaya extract solution, comprising the steps of: After the treatment, the mixture is brought into contact with a solution containing extracts of papain, chymopapain and lysozyme contained in papaya to cause a reaction, and then contacted with a mordant solution containing a mordant.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The papaya extract used in the present invention is obtained by extracting from a part of a plant body of epidermis and pulp. Preferably, a product obtained by extracting from a mixture of one or both of epidermis and pulp is preferable.

[0006] The papaya used in the present invention is C of the family Papaya.
Anica Papaaya L is the place of origin in Latin America, but unique varieties are bred around the world. It is a fast-growing evergreen fruit tree. The powdered product of this plant is available as a commercial product, and is also used as a beverage for maintaining the freshness of food and active for the human body.

After the fiber product is cationized by contacting it with a pretreatment liquid containing a cationizing agent, the fiber product is contacted with a solution containing a papaya extract, and then reacted 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 in the reaction treatment with the solution containing the extract by papaya is 20 to 100 with respect to the weight of the textile.
The bath temperature is about 60-90 ° C, and the processing time is about 30-90.
It is often the minute, but is not necessarily limited to this range. The concentration of the solution containing the papaya extract can be selected from a wide range depending on the purpose of the antimicrobial product.

[0012] After the reaction treatment, a contact reaction with a mordant solution containing a mordant is carried out. This step is an optional step. 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 the end of the antibacterial processing step of the fiber with the papaya 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.

Hot water extract of papaya 1000 ml of water is added to 100 g of papaya powder,
After boiling at 100 ° C. for 2 hours, extraction and filtration, a hot water extract of papaya was obtained.

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-Mordant Reaction 100 g of the above-mentioned cation-treated cloth is added to the papaya extract solution, heated, and subjected to a heating dyeing reaction at 85 ° C. for 30 minutes to 1 hour. 2 g / liter was dissolved in 10 to 20 times the volume of water, and the dyeing-treated cloth adjusted to this solution was heated at 30 ° C. for 20 minutes to react, and then washed with water, dehydrated and dried.

Antibacterial test Using the papaya-dyed cotton cloth obtained above, Staphylococcus aureus A
TCC 6538P) and Klebsiella pneumoniae (Klebsia)
lla pneumoniae ATCC 4352)
As a result of the antibacterial activity test, the following antibacterial properties were confirmed 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
eATCC 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>

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Claims (1)

[Claims] After cationizing the textile product by contacting it with a pretreatment liquid containing a cationizing agent, the fiber product is brought into contact with a solution containing an extract of papain and chymopapain and lysozyme contained in papaya, and then reacted. A method for producing an antibacterial fiber product having a bacteriostatic and bacteriostatic action using a papaya extract solution, which is brought into contact with a mordant solution containing a mordant.