JP2003278075A - Fiber and sheet containing extract of mugwort - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fiber and a sheet having not only antibacterial and antifungal activities, antiseptic activities and deodorant activities but also repel lent activities to mites and cockroaches, having excellent sustainability and immediate effectivity of the activities, usable for a product often contacting with a human body and a food, and containing an extract of mugwort. <P>SOLUTION: The fiber contains the extract of the mugwort, and a resin. The sheet is obtained by soaking a sheet in a solution containing the extract of the mugwort, and the resin. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a wormwood extract-containing fiber and sheet having excellent antibacterial, antifungal, antiseptic, deodorant, deodorant and insect repellent effects.

[0002]

2. Description of the Related Art Hitherto, various kinds of plant extract-containing compositions having an antibacterial action, an antifungal action, an antiseptic action and a deodorizing action have been present. However, although the conventional plant extract-containing composition as described above has some effects such as antibacterial action, antifungal action, antiseptic action and deodorant action, the sustainability of the effect was not sufficient. Moreover, some of them have an irritating odor and cannot be used for products having a high degree of adhesion to the human body or food.

[0003]

The present invention solves the above problems and has not only antibacterial, antifungal, antiseptic and deodorant effects but also a repellent effect for mites and cockroaches. It is also a technical object to provide a fiber and sheet which are excellent in durability or immediate effect, and which can be used for products having high adhesion to the human body and foods. It is what

[0004]

[Means for Solving the Problems] The inventors of the present invention have arrived at the present invention as a result of studies to solve the above problems. That is, the present invention is summarized in the following (1) to (6). (1) A wormwood extract-containing fiber comprising a wormwood extract and a resin. (2) A wormwood extract-containing fiber, which is obtained by impregnating a fiber with a solution containing a wormwood extract and a resin. (3) A wormwood extract-containing fiber, which is obtained by impregnating a solution containing a wormwood extract and polyvinyl alcohol with polyvinyl alcohol fiber. (4) A sheet made of the fiber according to any one of (1) to (3). (5) A sheet characterized by being obtained by impregnating a sheet with a solution containing a wormwood extract and a resin. (6) A sheet obtained by impregnating a solution containing a wormwood extract and polyvinyl alcohol with a sheet having polyvinyl alcohol fibers as main constituent fibers.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below. The wormwood extract in the present invention is an aqueous solution obtained by extracting the wormwood extract, a soaking method using a solvent such as a water bath or alcohol to boil the wormwood or an aqueous solution thereof, a steam distillation method, a Soxhlet using a Soxhlet extractor. The thing obtained by the extraction method etc. can be mentioned.

Of these, the method of natural extraction using dried wormwood is preferred. For example, after heating the dried wormwood (3 to 5 kg), about 3 of it is added to purified water (10 to 20 liters) at room temperature.
A method of soaking for a day and extracting can be mentioned.

In addition to the water and alcohol components, the sagebrush extract may contain components capable of further enhancing the antibacterial and pest repellent effects. For example, organic acid salts (sodium citrate, DL
(Sodium malate, sodium fumarate, etc.) and components extracted from natural products having antibacterial and deodorizing effects, such as green tea extract, are preferably contained.

Further, in the present invention, the wormwood is
Artemisia abrotanum
L.), Artemisia absinthium L., Artemisia absinthium L., Artemisia annua L., Artemisia anomala S. Moore, Artemisia apiacea Hance, Artemisia apiacea Hance Artemisia capilla (Artemisia capilla)
ris Thunb.), Semen Sina (Artemisia cina Berg.), Artemisia japonica Thunb., Artemisia japonica Thunb.
temisia lactiflora Wall.)
Artemisia montana (Nakai) Pampan.), Mibu mugwort (Artemisia maritima L.), mugwort (Kazuzaki mugwort, Prickly pear grass) (Artemisia princeps Pampan.), Artemisia scoparia Waldst.et kit.

In the fiber of the present invention, the wormwood extract is contained in the fiber through the resin. As a result, a film is formed, the state of adhesion to the fiber or sheet is improved, and the content of wormwood extract can be increased,
The duration of various effects of the wormwood extract is improved.

Examples of the resins that can be used include polyvinyl alcohol-based, silicon-based, urethane-based, vinyl acetate-based, acrylic-based, polyester-based, phenol-based, vinyl chloride-based resins and starch and other sizing agents. However, any resin may be used. Among them, from the viewpoint of durability, it is preferable to use polyvinyl alcohol-based, silicon-based, urethane-based, acrylic-based, or vinyl acetate-based resins that form a rubber-like film, and polyvinyl alcohol is particularly preferred.

The fibers containing the wormwood extract and the resin include natural fibers, regenerated fibers and synthetic fibers. Examples of the synthetic fibers are polyvinyl alcohol type, polyolefin type, polyamide type, polyester type and polyacrylonitrile type fibers. Fibers made of a thermoplastic resin such as Among them, it is preferable to use polyvinyl alcohol fiber as the fiber and polyvinyl alcohol as the resin. By this combination, the sagebrush extract is firmly fixed inside and on the surface of the fiber, and the duration of the effect is improved. This is because the resin to be fixed and the fiber are the same material, the resin has good adhesiveness, and polyvinyl alcohol is a hydrophilic substance having a hydroxyl group, and the wormwood extraction liquid is produced by the interaction between the hydroxyl group and the wormwood extract. This is because the active ingredient in the liquid is firmly retained.

The degree of polymerization and the degree of saponification of polyvinyl alcohol used as a resin in the present invention are not particularly limited, but the degree of polymerization is about 500 to 5000 and the degree of saponification is 95.
It is preferably at least mol%. When the fiber of the present invention is polyvinyl alcohol, the degree of polymerization or saponification of the polyvinyl alcohol used is not particularly limited, but the degree of polymerization is 1000 to 5000, and the degree of saponification is 99 mol% or more. Is preferred.

In the present invention, as a method of containing the wormwood extract and the resin, the wormwood extract is applied or impregnated in the extract to apply the resin, and then only the resin is applied or impregnated later. And a method of applying a solution containing the wormwood extract and the above resin, or impregnating the solution in the solution. Above all, as a method having a high effect of containing and fixing the wormwood extract, a method of impregnating fibers in a solution containing the wormwood extract and the above resin is preferable. Specifically, it is preferable to apply the wormwood extract and the resin to the inside and the surface of the fiber by immersing the fiber in a solution containing the wormwood extract and the above resin, and drying the fiber as necessary. .

Furthermore, it is preferable that ethanol is contained in the solution containing the wormwood extract and the resin. Volatility is improved by using a solution containing ethanol,
Immediate effect of various effects of wormwood extract can be expected. Furthermore, since ethanol is an alcohol or an organic solvent, it is expected that the wormwood extract is likely to be contained in the fiber. As described above, there are cases where an alcohol component is contained in the wormwood extract, but by incorporating it in the solution, these effects are further improved.

Next, the sheet of the present invention will be described.
The sheet in the present invention includes not only woven and knitted fabrics and non-woven fabrics which are generally cloth but also paper. The fibers containing the wormwood extract and the resin as described above are used as long fibers for knitting or weaving, or as short fibers for nonwoven fabric or paper.

Further, the sheet of the present invention may be one in which the fiber extract and the resin are contained in the constituent fibers by post-processing. After applying the wormwood extract to the sheet or applying it by impregnating it in the extract, a method of applying by applying or impregnating only the resin later, or a solution containing the wormwood extract and the above resin And a method of impregnating a sheet in a solution. Above all, a method of impregnating the sheet with a solution containing the wormwood extract and the above-mentioned resin is preferable as a method having a high effect of containing the wormwood extract and fixing it. Specifically, it is preferable to apply the wormwood extract and the resin to the inside and the surface of the fiber by immersing the sheet in a solution containing the wormwood extract and the above resin, and drying the sheet if necessary. . Above all, it is preferable to use a sheet using polyvinyl alcohol fiber as the fiber and use polyvinyl alcohol as the resin. By this combination, the sagebrush extract is firmly fixed inside and on the surface of the fiber, and the duration of the effect is improved.

Further, at this time, it is preferable to prepare a solution containing ethanol in addition to the resin and the wormwood extract. By including ethanol in the solution, the volatility is improved, and immediate effects of various effects of wormwood extract can be expected. Furthermore, since ethanol is an alcohol or an organic solvent, it is possible to expect an effect that the wormwood extract is easily impregnated in the fiber.

These sheets can be used not only for clothing but also for agricultural clothes such as cheesecloth, food covers, etc. Further, they can be used for protection or evasion of wild animals and livestock (nets, fences, etc.). be able to. The structure of the sheet is not particularly limited, and the density, structure, basis weight, etc. may be variously changed according to the application.

Next, a method for producing the wormwood extract-containing fiber of the present invention will be described. Regarding the fiber of the present invention, the method for preparing the fiber containing the wormwood extract and the resin is as described above. In particular, when polyvinyl alcohol-based fibers are used and polyvinyl alcohol is used as the resin, the fibers are wet-spun, stretched, and then allowed to pass while being dipped in the solution bath (10 to 98 ° C.), and then dried. Roll up. Alternatively, after wet spinning, stretching and drying, it is once wound, and as a separate step, the fiber is dipped in a solution bath, dried, and then wound.

A method of manufacturing the sheet of the present invention will be described. The method of forming the sheet of the present invention from the fiber containing the wormwood extract and the resin is as described above. In particular, in the case of a sheet obtained by impregnating a sheet containing a polyvinyl alcohol fiber as a main constituent fiber in a solution containing wormwood extract and polyvinyl alcohol, as a preferred embodiment among the sheets of the present invention, polyvinyl It is obtained by wet-spinning and stretching the alcohol-based fiber, and then producing a woven or knitted fabric, a non-woven fabric, paper, etc., allowing the fiber to pass through in a solution bath (10 to 98 ° C.) while being immersed, and drying. .

The paper can be obtained by a wet papermaking method or the like in which it is dispersed in water to make a paper. It is obtained by using a solution containing a wormwood extract and a resin at the stage of the papermaking process. But it's okay. When a solution containing a wormwood extract and a resin is used in the papermaking step, it may be added in any step up to the papermaking process, but the pulper or beater for dispersing the fibers or the fibers are dispersed. It is common to add stock in a chest of stock.

[0022]

EXAMPLES Next, the present invention will be described more specifically by way of examples. The evaluation of each performance in the examples was carried out as follows. (1) Pest repellent 1. Test against Dermatophagoides farinae The obtained woven fabric, non-woven fabric, and paper are used as samples and cut into a square with a side of 3 cm.
m, height 2 cm, transparent) was prepared, and the sample was placed at the center of the bottom of the petri dish. Place the bait for mites on the sample, release 30 mites on it, and cover the petri dish (diameter 9 cm,
Height 1 cm, transparent). Experimental container (15 cm x 20 c
(m × 10 cm) placed on a pedestal, a petri dish was placed on the pedestal, and 200 ml of tap water was added to the bottom of the experimental container for mites escape prevention and hydration. Then, the upper part of the experimental container was covered with a breathable net. Experiment condition 2
The temperature was 5 ± 2 ° C. and 65 ± 5% RH. The sample and the number of mites latent in the sample were counted using a stereomicroscope 3 and 10 days after the tick was released (a different petri dish was used after 3 days and 10 days). In each test, four petri dishes were used for measurement, and the average value was used. 2. Test for aphids A sample similar to that of 1. was prepared, a cabbage was placed on the sample as a bait, and the test was performed under the same conditions as in 1 except that 30 aphids were released. (2) Antibacterial properties Staphylococcus aureus and pneumonia are used as test bacteria in accordance with the Quantitative Antibacterial Test Method Manual for Textile Products defined by the New Textile Product Functional Evaluation Council (SEK) using the obtained woven fabric, nonwoven fabric, and paper. The bacteriostatic activity value was measured using bacilli. At this time,
One week after the first measurement, the same measurement was performed again to evaluate the persistence of the effect. (3) Antifungal The obtained woven fabric, non-woven fabric, and paper were used as samples, cut into squares with a side of 6 cm, and placed in the approximate center of 150 ml of PDA medium (potato dextrose agar medium). The pathogenic bacteria (citrus green mold fungus, gray mold fungus) punched out with an 8 mm cork polar that had been pre-cultured were placed on the center of the sample for 20
Culturing was performed at 4 ° C for 4 days. The growth diameter of the fungus was measured to determine the mycelial growth inhibition rate. At this time, one week after the first measurement, the same measurement was performed again to evaluate the persistence of the effect.

[Mugwort Extract and Kind of Solution] As a wormwood extract, 68.0% by mass of wormwood extract aqueous solution, 12.0% by mass of green tea extract aqueous solution, 15.0% by mass of ethanol, 4.5% by mass of sodium citrate and other sodium, and 0.5% of other components. Afpilin AF-1012 (manufactured by AFTY CO 'LTD) consisting of mass%
Was used. Solution 1: A solution consisting of 5% by weight of wormwood extract, 85% by weight of water, and 10% by weight of polyvinyl alcohol (Unitika Chemical Co., Ltd., water-soluble Poval UV). Solution 2: A solution comprising 5% by mass of wormwood extract, 83% by mass of water, 10% by mass of polyvinyl alcohol (Unitika Chemical Co., Ltd., water-soluble Poval UV), and 2% by mass of ethanol. Solution 3: A solution consisting of 5 mass% of wormwood extract and 95 mass% of water.

Example 1 Polyvinyl alcohol (PVA) having a polymerization degree of 1700 and a saponification degree of 99.9 mol% and an aqueous solution (pH 4.2) having a PVA concentration of 16 mass% in which 1.3 mass% of boric acid was dissolved in hot water with respect to PVA.
Was used as the spinning dope. This spinning solution (90 ℃) has a pore size of 0.08m
m, spinneret with 500 holes, coagulation bath (Glauber's salt 35% by mass,
After wet spinning in an aqueous solution of 1.6% by mass of sodium hydroxide at a temperature of 50 ° C., an undrawn yarn was obtained through neutralization, moist heat, water washing and drying steps according to a standard method. Then, this undrawn yarn is
Stretched 14 times in a hot air oven at ℃, rolled up, 1330dtex / 5
00f of PVA fiber was obtained. The obtained PVA-based fiber was dipped in Solution 1 (98 ° C.), the whole solution was contained, and then dried and heat-treated, using a warp knitting Raschel knitting machine, at 9 gauge / inch, knitting A mesh structure having a width of 40 inches and a size of 3 sheets was knitted at 16 courses / inch.

Example 2 A PVA-based fiber obtained in the same manner as in Example 1 was used as a solution 2
After being dipped in (40 ° C.) to contain the solution in its entirety, a dry heat treatment was performed to knit a mesh structure in the same manner as in Example 1.

Example 3 A PVA-based fiber obtained in the same manner as in Example 1 was mixed with warp density.
A plain woven fabric was obtained with 22 threads / 2.54 cm and a weft density of 21 threads / 2.54 cm. This woven fabric was dipped in Solution 1 (98 ° C.) to contain the entire solution, and then dried and heat-treated.

Example 4 The woven fabric obtained in the same manner as in Example 3 was dipped in Solution 2 (40 ° C.) to contain the entire solution, and then dried and heat-treated.

Example 5 The PVA-based fiber obtained in the same manner as in Example 1 was cut into 51 mm and made into a nonwoven fabric by a spunlace method according to a standard method.
The basis weight was 60 g / m ² . Solution 1 (98 ℃) of this non-woven fabric
After being dipped in and the solution was contained in the whole, a dry heat treatment was performed.

Example 6 A spunlace nonwoven fabric made of PVA fiber obtained in the same manner as in Example 5 was dipped in Solution 2 (40 ° C.) to contain the entire solution, and then dried and heat-treated. .

Example 7 8.1 g of beaten pulp (LBKP) was collected and thoroughly disintegrated in 750 ml of water. In this, 6.0 g of PVA-based fibers obtained in the same manner as in Example 1 and 2.5 g of vinylon binder fibers for papermaking (Unitika SML1.1T × 3 m
m) was added to form an aqueous dispersion containing pulp and PVA-based fibers, and papermaking was carried out according to the JIS method (JIS P8209). The weight of the obtained paper was 521 g / m ² . This paper was dipped in Solution 1 (40 ° C.) to contain the solution in its entirety, and then dried and heat-treated.

Example 8 A paper containing PVA-based fibers obtained in the same manner as in Example 7 was dipped in Solution 2 (40 ° C.) to contain the entire solution, and then dried and heat-treated.

Example 9 Solution 1 was added to the aqueous dispersion containing pulp and PVA-based fibers prepared in Example 7 so as to be 500% by mass with respect to the fiber mass, and the JIS method (JIS P8209) was applied. Papermaking was performed according to the above.

Comparative Example 1 Fibers obtained in the same manner as in Example 1 were impregnated with the solution 3 and then
A knit was obtained by knitting in the same manner as in Example 1 except that the dry heat treatment was performed.

Comparative Example 2 A knitted fabric was obtained by knitting in the same manner as in Example 1 except that the fiber obtained in the same manner as in Example 1 was not impregnated with the solution 1.

Comparative Example 3 A woven fabric obtained in the same manner as in Example 3 was dipped in Solution 3 (98 ° C.) to obtain a woven fabric in the same manner as in Example 3 except that the solution was contained in the whole.

Comparative Example 4 The same procedure as in Example 5 was carried out except that the spunlace nonwoven fabric of PVA fiber obtained in the same manner as in Example 5 was dipped in Solution 3 (40 ° C.) to contain the solution in its entirety. A non-woven fabric was obtained.

Comparative Example 5 A paper was obtained in the same manner as in Example 7 except that the paper obtained in the same manner as in Example 7 was dipped in Solution 3 (40 ° C.) to contain the solution in its entirety.

Table 1 shows the results of the pest repellent test of the woven fabrics, nonwoven fabrics and papers obtained in Examples 1 to 9 and Comparative Examples 1 to 5, and the evaluation of antibacterial and antifungal properties.

[0039]

[Table 1]

As is clear from Table 1, the knitted fabrics, woven fabrics, non-woven fabrics, papers and the like obtained in Examples 1 to 9 are excellent not only in the initial pest repellent, antibacterial and antifungal effects but also for one week. After that, it was also excellent in pest repellent, antibacterial and antifungal effects, and retained excellent durability. In particular, Examples 2, 4, 6, 8
Since it contained the ethanol component in addition to the wormwood extract and the resin, the immediate effect of the above effects was also excellent.
On the other hand, the knitted fabrics, woven fabrics, non-woven fabrics, papers and the like obtained in Comparative Examples 1 and 3 to 5 were excellent in initial pest repellent, antibacterial and antifungal effects because they did not contain a resin in the wormwood extract. After 1 week, the pest repellent, antibacterial and antifungal effects were inferior and the sustainability was inferior. Further, since the knitted fabric of Comparative Example 2 did not contain any wormwood extract or the like, it did not have all of the insect repellent, antibacterial and antifungal effects.

[0041]

Industrial Applicability The fiber of the present invention has not only antibacterial, antifungal, antiseptic and deodorant effects, but also has a repellent effect on mites and cockroaches, and has excellent durability or immediate effect, Woven / knitted fabrics, non-woven fabrics, papers and the like obtained from these fibers can also be used for products having high adhesion to the human body and foods. The sheet of the present invention has the same effect as the fiber of the present invention, and can be used for various purposes.

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2B121 AA16 CA02 CA53 CA64 CC02                       CC03 CC04 CC22 FA07 FA12                       FA13 FA15                 4H011 AA01 AA02 AA03 AC06 BA01                       BB22 BC19 DA07 DA10 DC10                       DH02 DH04 DH06 DH09                 4L033 AA01 AA05 AA06 AA07 AA08                       AB05 AB06 AB07 AB09 AC10                       BA00 BA11 CA15 CA18 CA29                       CA34 CA45 CA50

Claims (6)

[Claims] 1. A wormwood extract-containing fiber comprising a wormwood extract and a resin. 2. A wormwood extract-containing fiber, which is obtained by impregnating fibers with a solution containing a wormwood extract and a resin. 3. A wormwood extract-containing fiber, which is obtained by impregnating a solution containing a wormwood extract and polyvinyl alcohol with polyvinyl alcohol fibers. 4. A sheet made of the fiber according to claim 1. 5. A sheet obtained by impregnating a sheet with a solution containing a wormwood extract and a resin. 6. A sheet obtained by impregnating a sheet containing a polyvinyl alcohol fiber as a main constituent fiber with a solution containing a wormwood extract and polyvinyl alcohol.