JP2001172861A - Method and composition for fixing functional agent to fiber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a treating agent composition for producing a washable textile product having fixed a functional agent (deodorant, antimicrobial agent, etc.), and to provide a method for a treatment. SOLUTION: A solution containing the functional agent, persimmon juice or persimmon tannin is used as the treating agent composition. The treating agent composition is impregnated into a textile and dried to produce the washable textile product having fixed the functional agent.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION In recent years, there has been a demand for daily necessities and personal articles which have an effect of removing bad smells in living environments, removing bacteria and fungi, and inhibiting growth. In particular, clothing such as underwear and socks, fabric such as sheets and curtains, and cotton such as futons are required to have deodorant and antibacterial functions.

[0002] The present invention provides a functional agent (deodorant, antibacterial agent, etc.) for imparting functionality to fibers, yarns or cloths of various materials.
The present invention relates to a composition and a method having a function of fixing or fixing a compound.

[0003]

2. Description of the Related Art Conventionally, as a method of fixing a functional agent to fibers, yarns or cloths of various materials, a method of fixing with a binder and a method of partially or chemically changing the structure of a fiber to obtain a functional agent. There is a method of chemically bonding or physically fixing drugs.

[0004]

The method of fixing a functional agent to fibers with a binder is based on forming and fixing a thin film together with the functional agent on the surface of the fiber by the adhesiveness of the binder. Therefore, most of the functional drugs are blocked from reacting or acting upon direct contact with malodorous components or bacteria, so that the desired function cannot be exhibited and the effect is reduced by half. Further, the binder used for this is a natural resin such as shellac or a synthetic resin such as urethane, vinyl acetate or silicone. These resins have poor solubility in water and require some means of solubilization, and there are some restrictions on their use. On the other hand, the method of chemically modifying a part of the fiber structure and fixing the functional agent is a process prior to processing into fibers or a chemical method in which the functional agent easily bonds a part of the chemical structure in the fiber state. It is a method of modifying and fixing. The physical method is a method in which an ultrafine concave portion is formed on the surface of the fiber by electromagnetic waves or the like, and a functional agent is embedded in the concave portion and fixed and fixed. Both of these methods require special equipment and special steps, resulting in high costs. The present invention overcomes these disadvantages.

[0005]

[Means for Solving the Problems] Persimmon juice made from fermented juice of immature persimmon has been known for its usefulness since ancient times, and it is a folk medicine that is particularly effective in detoxifying burns, frost burns, stomach ulcers or snake venom since the Muromachi period. Has been used as It is thought that persimmon tannin, which is the main component of persimmon astringent, is adsorbed on the damaged skin and cells of the stomach wall and protects that part against various external stimuli to accelerate the treatment. In addition, applying persimmon astringency to Japanese umbrella washi was used to make the washi waterproof and tough and resistant to tearing. This is thought to be due to the astringent action of persimmon tannin binding to cellular proteins and Japanese paper fibers to tighten tissues.

The present invention focuses on this astringent action of persimmon astringent or persimmon tannin, and is a functional drug which is a drug having a deodorant or antibacterial property while binding persimmon astringent or persimmon tannin to a fiber and tightening its tissue. It takes advantage of the fact that the fiber embraces or bonds with a functional agent and adheres to the fiber to produce the desired function. This is because the persimmon astringent or persimmon tannin binds to the fiber and embraces the functional drug when the fiber converges, and the physical action that persimmon astringent or persimmon tannin itself embraces the drug component, while the persimmon astringent or persimmon tannin binds to the fiber It is considered that both functions of the chemical action that also binds to the drug component work simultaneously to fix the functional drug to the fiber.

[0007] Furthermore, persimmon tannin is said to have various other actions besides astringent action due to its chemical structure. In particular, one of them is said to have antiseptic and antibacterial properties against bacteria. For example, a culture comparison test using various bacteria or an antibacterial activity test for Shigella, staphylococcus and the like have been reported. There is a patent as a preservative for foods and cosmetics using this property. The other one is a polyphenol structure which is known as a natural deodorant, and persimmon tannin also has a deodorant property for some offensive odors due to the structure composed of polyphenol. Therefore, since persimmon tannin has both antibacterial properties and deodorant properties, persimmon tannin already has some of the functions desired to be imparted to the fiber, and in addition, a functional drug can be fixed to the fiber.

The present invention provides a fiber treating agent composition for fixing a functional agent comprising a functional agent and a solution containing persimmon astringent or persimmon tannin to a fiber, impregnating the fiber with the composition, and drying the fiber. A method of fixing a functional agent to a fiber.

The target fibers are natural plant fibers such as cotton and hemp, natural animal fibers such as wool and silk, regenerated cellulose fibers such as rayon and acetate, and cellulosic semi-synthetic fibers, nylon, polyester, acrylic and polyurethane. The synthetic fiber has a particularly high fixing effect on natural fibers and mixed fibers containing natural fibers.

Since persimmon astringent or persimmon tannin has the property of being combined with the fiber to be colored, in a product which does not have a problem in coloring, the persimmon astringent or persimmon tannin has a concentration of 0.5% to 5.0%, preferably 1.0%. % Solution. At this time, an undiluted solution having a high concentration may be used so as to be diluted to a target concentration. This solution is mixed with a deodorant or antibacterial agent, or a functional agent that has a combination of both, at the optimum concentration to make the functions that are not sufficient with persimmon astringent or persimmon tannins more sufficient. Impregnate and give the desired function in one treatment. In some cases, there is a method of separately impregnating a solution of a functional drug with an optimum concentration and a solution of a fixed concentration of persimmon astringent or persimmon tannin as a fiber fixing agent.

If necessary, persimmon astringent or persimmon tannin and tannic acid may be used in combination. At this time, the concentrated solution to be used may be diluted as before. This solution is likewise mixed or used separately with the functional agent.

[0012] For products in which coloring is a problem, a part of persimmon astringent or persimmon tannin is replaced with rosemary extract to obtain 0.0
It is preferred to use a concentration of 1% to 0.5%, optionally using tannic acid and / or chitosan at a concentration of 0.1% to 0.5%, preferably at a concentration of 0.2%. This solution may also be used as a concentrated solution by diluting it in the same manner as described above, and may be mixed or impregnated with the functional agent separately.

[0013] The concentration of the functional agent in the treatment solution is a function of the minimum effective concentration of the particular functional agent used, and is adjusted so that the drug concentration after fixation to the fiber is above this minimum effective concentration. . If the solubility in the treatment liquid is not sufficient, a water-miscible organic solvent such as alcohol can be used in combination to increase the solubility of the functional drug.

[0014] The functional agent fixed to the fiber in this manner has washing durability, and even if the agent is almost lost in washing without persimmon tannin or persimmon tannin, it can withstand at least 20 washings. It can be immobilized according to the invention.

[0015]

The present invention will be described in detail with reference to the following examples. In these, parts and percentages are by weight unless otherwise specified.

Example 1 A persimmon tannin solution extracted from persimmon was diluted to a certain concentration, filtered and sterilized, and a persimmon tannin solution and a liquid deodorant containing tea extract as a main component (CY22 manufactured by Sun Mate Chemical Industry Co., Ltd.)
7) From above, an impregnation liquid having the following formulation was prepared.

Liquid deodorant (as solids) 3 parts Persimmon tannin (as solids) 3 parts Ethanol 5 parts Water qs 100 parts

The liquid deodorant used has the following deodorizing power against various malodorous substances at a concentration of 3%.

Ammonia 99.2% Hydrogen sulfide 100.0% Trimethylamine 100.0% Acetaldehyde 100.0% Isovaleric acid 95.0%

A cotton cloth of 10 cm × 10 cm is immersed in this impregnating liquid, pulled up and squeezed, dried at 100 ° C. for 20 minutes, and then JAF according to JIS LO217 · 103.
The laundry was washed with an ET standard detergent, and the deodorizing rate against ammonia, hydrogen sulfide and isovaleric acid was measured and compared with the initial value (0 washes).

Deodorization rate measuring method: 3 standard solutions of each malodorous substance
The same amount is put into each of two flasks so as to be several hundred times to several thousand times the threshold of each malodor in a 00 mL or 500 mL flask. The sample is suspended in one of these flasks, and the other is sealed as it is,
Let stand at room temperature for 30 minutes. Thereafter, the concentration of the malodor in the flask is measured using a detection tube corresponding to each malodor, and the difference between the malodor concentration of the flask in which the sample is not placed and the flask containing the sample is defined as the deodorization rate.

Results: shown in Table 1.

Table 1 ─────────────────────────────────── Odorous substances Deodorization rate (%) ──回 数 Number of washes ──────────────────── ────────── 0 10 20 30 40 50 ────────────────────────────────── ─ Ammonia 99.9 98.9 98.0 95.4 94.3 92.6 Hydrogen sulfide 95.0 93.3 92.9 ── 93.0 90.5 Isovaleric acid 85.0 85.0 85.0 85.0 82.0 80.0 ──────────────────────── ───────────

Example 2 A persimmon tannin solution used in Example 1 and a liquid deodorant containing tea extract as a main component (PK manufactured by Sun Mate Kagaku Kogyo KK)
227) and a liquid antibacterial agent (BY213 manufactured by Sun Mate Scientific Co., Ltd., containing 1% of p-hydroxybenzoic acid) to prepare the following impregnating liquid.

Liquid deodorant (as solid content) 3 parts Liquid antibacterial agent 3 parts Persimmon tannin (as solid content) 5 parts Ethanol 5 parts Water qs ───────────── ──── １００ 100 copies in total

The deodorizing power of the above liquid deodorant at a concentration of 3% is as follows.

Ammonia 95.6% Trimethylamine 100.0% Isovaleric acid 100.0%

A part of a cotton / acrylic / polyester / polyurethane blended sock was added to the impregnating solution at 10 cm × 10 c.
m, impregnated, pulled up, squeezed, 100 ° C
For 30 minutes to prepare a sample, and the change in the deodorization rate before and after washing was measured in the same manner as in Example 1.

The change in the antibacterial activity of the sample before and after washing was measured by the following test method.

Antibacterial test method: A sterilized ordinary agar medium was placed in a petri dish, allowed to stand and solidified, and a sample cut into a circle having a radius of 2 cm was wetted with sterile water and placed on the medium. The solution was applied to the whole and cultured at 30 ° C. for 48 hours to observe colonies on the sample.

Results: Table 2 shows the measured deodorizing rate, and Table 3 shows the change in the antibacterial activity.

Table 2 ─────────────────────────────────── Odorous substances Deodorization rate (%) ──回 数 Number of washes ──────────────────── ────────── 0 10 20 30 40 50 ──────────────────────────────────ア ン モ ニ ア Ammonia 99.9 99.7 99.6 99.6 98.8 98.2 Isovaleric acid 98.0 98.0 97.7 95.0 90.7 90.0 ───────────────────────────────── ──

Table 3 ──────────────────────────── Bacteria control ¹⁾ Number of washing times ─────────── ─────── 0 20 50 ──────────────────────────── General bacteria + ²⁾ − ³⁾ − − Bacillus subtilis +---──────────────────────────── 1) A sample cloth not impregnated with a drug was used after being wetted with sterilized water. 2) Find colonies. 3) No colonies are observed.

Example 3 Impregnation of a liquid deodorant antibacterial agent (RR319 manufactured by Sun Mate Kagaku Kogyo Co., Ltd.) containing tea extract and p-hydroxybenzoic acid ester as main components and persimmon tannin, tannic acid and chitosan A liquid was prepared.

Liquid deodorant antibacterial agent (as solid content) 3 parts Persimmon tannin (as solid content) 0.04 parts Tannic acid 0.06 parts Citric acid 5 parts Chitosan 0.2 part Water appropriate amount ─────── ───────── ─────── Total 100

The liquid deodorant antibacterial agent used has the following deodorizing power at a concentration of 3% and inhibits the growth of general bacteria, Bacillus subtilis and Pseudomonas aeruginosa.

Ammonia 97.4% Isovaleric acid 100.0% Acetaldehyde 100.0%

10 cm × 10 c with the prepared impregnating liquid
polyester / cotton blend fabric (PE / C) cut into m
Impregnated with nylon cloth and polyester (PE) cloth,
A sample was prepared by drying at 00 ° C. for 20 minutes, and the change in the deodorization rate according to the number of washings according to the method described in Example 1 was determined.
According to the method described, the antibacterial activity after 20 washes was measured.

Results: Table 4 shows the change in the measured deodorization rate, and Table 5 shows the antibacterial activity after 20 washes.

Table 4 布 Cloth Odorous substances Deodorization rate (%) ─回 数 Number of washings ─────────────────────── 1 10 20 30 ─────────────────────────────────── PE / C ammonia 99.4 99.6 93.0 86.3 Isovaleric acid 100.0 99.9 80.0 62.0 ─────────────────────────────────── Nylon Ammonia 98.9 95.4 88.5 87.4 Isovaleric acid 100.0 99.9 99.9 80.0 ─ ＰＥ PE ammonia 96.1 92.8 86.0 78.1 Isovaleric acid 99.9 80.0 78.3 60.0 ─── ───────────────────────── ──────

Table 5 ──────────────────────────────Bacteria cloth ───────────── ────────── General bacteria Bacillus subtilis Pseudomonas aeruginosa ────────────────────────────── PE / C − − − Nylon − − − PE − − − ──────────────────────────────

Example 4 A PE / C cloth cut to 10 cm × 10 cm was impregnated in the same manner as in Example 3 using the impregnating solution having the following formulation, and the deodorizing rate and antibacterial activity were measured by the same method. The change in force was considered. Table 6 shows the measured change in the deodorizing rate, and Table 7 shows the change in the antibacterial activity.

Table 6 ─────────────────────────────── Odorous substances Deodorization rate (%) ──────回 数 Number of washings ────────────────────────── 0 1 10 20 30 ア ン モ ニ ア Ammonia 93.5 85.3 82.4 76.9 69.9 Isovaleric acid 89.8 85.9 85.1 84.5 83.3 ア ン モ ニ ア─────────────────────────────

[0044]

Formulation of impregnating liquid: Liquid deodorant antibacterial agent (as solid content) 3 parts Persimmon tannin (as solid content) 0.01 part Tannic acid 0.02 part Lactic acid 1.5 parts Chitosan 0.2 part Water appropriate amount ── ───────────── ─────── Total 100

Example 5 A 3% aqueous solution as a solid content of the liquid deodorant antibacterial agent (PR319 manufactured by Sunmate Chemical Industry Co., Ltd.) used in Example 3 was used as the first liquid, and an aqueous solution containing persimmon tannin having the following formulation was used as the first liquid. Two liquids were used.

Persimmon tannin (as solid content) 3 parts Tannic acid 0.5 part Lactic acid 0.2 part Chitosan 0.5 part Water appropriate amount １００ 100 copies in total

PE / C cut to 10 cm × 10 cm
The mixed fabric was first impregnated with the first liquid and dried at 100 ° C. for 20 minutes, then impregnated with the second liquid, and dried again at 100 ° C. for 20 minutes to prepare a sample.

For this sample, the change in the deodorization rate before and after washing, and
The antibacterial activity after 0 times was measured, and the results shown in Tables 8 and 9 were obtained, respectively.

Table 8 ────────────────────────── Odorous substances Deodorization rate (%) ───────────回 数 Number of washings ───────────────────── 1 10 20 30 ───────────── ───────────── Ammonia 99.0 99.0 96.7 90.2 Isovaleric acid 99.8 100.0 85.6 82.5 ───────────────────────── ─

[0051]

Continuing on the front page (72) Inventor Kazuo Wakihira 620-23 Kiyokawa, Mizuguchi-machi, Koka-gun, Shiga Prefecture F-term (reference) 4C080 BB02 BB04 BB05 BB06 CC02 CC04 CC08 CC09 MM14 MM15 MM23 MM31 QQ03 4H011 AA02 BA04 BA06 BB06 BB22 BC19 BC22 DA DC08 DC10 DG03 DH09 4L033 AB01 AC10 BA13 BA99 CA02 CA34 CA70

Claims (7)

[Claims] 1. A method of fixing a functional drug to a fiber, comprising impregnating the fiber with a solution containing a functional drug and a persimmon astringent or persimmon tannin, followed by drying. 2. The method according to claim 1, wherein the functional agent is a deodorant or an antibacterial agent. 3. The method according to claim 1, wherein the impregnating solution further comprises tannic acid and / or chitosan. 4. The impregnating liquid is divided into a first liquid containing a functional agent and a second liquid containing persimmon astringent or persimmon tannin, and the fibers are first impregnated with the first liquid, dried, and then dried. 4. The method according to claim 1, wherein the functional agent is fixed by two steps of impregnating with a second liquid and drying. 5. A fiber treatment composition for fixing a functional drug, comprising a solution containing a functional drug and a persimmon astringent or persimmon tannin. 6. The fiber treatment composition according to claim 5, wherein the functional agent is a deodorant or an antibacterial agent. 7. The fiber treating agent composition according to claim 5, further comprising tannic acid and / or chitosan.