JPS59163477A - Anti-bacterial and deodorizing processing of fiber article - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention provides an antibacterial and deodorizing processing method for textile products, and more specifically a method for imparting anti-1 bond young fruit to unfavorable textile products by treating them with a liquid containing monoglyceride of saturated fatty acids. Regarding.

Shoes, skin care products, sports clothing, etc. have secretions from the wearer's skin, sweat, skin peelings, etc. attached to them, and these serve as a source of glory and serve as a good medium for the growth of fine particles. , products such as bacteria generate unpleasant odors, and in some cases may cause infections such as skin disease.

As a countermeasure against this problem, research has been conducted in recent years on so-called hygienic processing methods, which provide antibacterial properties to textile products to prevent the proliferation of bacteria on the skin and fiber surfaces, as well as to prevent the occurrence of certain discomfort. The use of local disinfectants, such as grade ammonium salts and halogen-containing substances, has been proposed. However, the conventional methods have insufficient anti-emission spectra, are toxic to the human body, are susceptible to insects, tomato skin, etc., and have a strange odor. When exposed to sunlight, the treated product may gradually change color or become stale, or may deteriorate or lose its effectiveness significantly due to drying, washing, bleaching treatment, or the action of anionic surfactants, metal salts, etc. Treatments that impair the original physical properties of the fibers (e.g., eliminate water absorption and make them water-repellent, or impair flexibility) or treatments to extend the period of antibacterial activity (e.g., resin treatment) treatment, addition of functional groups to enhance adhesion, etc.) Vt-X's original antibacterial power may be suppressed and sufficient effects may not be exhibited, making it difficult to obtain an actually satisfactory antibacterial and deodorizing processing method. It's a situation.

The present inventor has conducted repeated studies with the aim of developing a safe and highly effective hygienic processing method for fibers, and has found that monoglycerides of saturated fatty acids have a strong affinity for fibers. We discovered that it does not have any harmful effects, has good light resistance, is chemically stable under normal fiber processing conditions, and exhibits sufficient antibacterial activity, leading to the establishment of a strong yet extremely safe antibacterial and deodorizing processing method for fibers. It is something.

Fatty acid monoglycerides are widely used in foods for the purposes of emulsification, dispersion, emulsion stabilizers, etc., and because they are metabolites of fats and oils in the human body, their safety is particularly high. No ridges are seen. Monoglycerides of fatty acids with a carbon number of 6 to Ig have antibacterial properties, and monoglycerides of fatty acids with a carbon number of 2 to 2 have particularly strong antibacterial properties, and it is already known that they can be used as preservatives in the fields of food and cosmetics. ing.

As the monoglyceride of fatty acids used in the method of the present invention, considering the antibacterial activity, ease of handling, etc., it is recommended to use monoglycerides of fatty acids (Tong'shi Gansu 6-Ig, especially charcoal-based monoglycerides). Monoglycerides of straight chain saturated fatty acids of /- are preferred.Specifically, monoglycerides such as cargyrylic acid, capric acid, lauric acid, myristic acid, palmitic acid, and stearic acid are easily available and are preferably used interchangeably.

Commercially available monoglyceride products contain impurities such as diglycerides, but as impurities increase, the antibacterial activity decreases or becomes thicker, so the purity of the monoglyceride must be 7θd[M'% or higher, preferably 't'. It is suitable if it has a weight of more than i?θ.However, if necessary, this does not preclude using it in combination with an appropriate fungicide to enhance the effect.

The main point of the treatment method of the present invention is to infiltrate fatty acid monoglycerite into the red product and apply it to the same place. There are methods such as soaking the textile product at room temperature or under heating, then squeezing it, and drying it by drying, or spraying or coating the textile product with a treatment solution.

For the treatment, a bath solution of an organic solvent having a low θ1 point (for example, methanol, acetone, dichloromethane, etc.) may be used instead of water. Mosquito monoglyceride itself has a certain ability to emulsify in water, and usually
After heating (normally the melting point is above room temperature) in water, it is possible to form a white emulsion, albeit incompletely, by heating it for 1 minute.
As the temperature decreases from 0'C onwards, fine crystals precipitate out, and as the temperature decreases further, they separate and precipitate.

Therefore, in the method of the present invention, fatty acid monochrycerite, a surfactant and a hydrotrope (1-filter substance that promotes the solubility of the active substance in a water-emulsifier system; JP-A-9-37
577)) and dilute it with water to make it stable! Preferably, the textile product is treated using a curing solution or a solubilizing solution.

As the surfactant, anionic, nonionic, and both a-type surfactants can be used in combination. For example, Q71-alkylaryl sulfone salt,
Polyoxyethylene alkyl 71J ether sulfur salt,
Polio A/diethylene alkyl needle sulfate, dialkyl sulfosuccinate, polyoxyethylene alkyl ether, polyoxyethylene alkyl allyl ether, polyoxyethylene 11)j acid ester, nysdel ester, polyoxyethylene Solhitanha i'i IL esters, alkylglycines, alkylglycines, alkylbetaines, etc. should be used in the spring.

As this hydrotrope, it is possible to combine commonly used materials into a variety of species. For example, methanol, ethanol 1. - (and Hi lso -)
propatool, methyl ethyl ketone, methyl n-(and 1so-)propyl ketone, ethylene glycol, propylene glycol, triethanolamine, ethylene glycol 7-5-alkyl (hereinafter alkyl refers to methyl, ethyl, furovir) , methyl'& f) ether, propylene glycol monoalkyl ether, diethylene glycol monoalkyl ether, siglobylene glycol monoalkyl ether, 3-methyl-3-methoxybutanol, N-methyl-nipyrrolidone, and the like.

Surface active H that attracts concentrated liquid of fatty acid monoglyceride
] 1 o, o o t~, 20, hydrotrope (alcohol';<excluding<) o, oot~e 0, alcohol θ~a predetermined dilution once.

Furthermore, if necessary, you can adjust the pox by adding an appropriate type of water.

The amount of fatty acid monoglyceride processed varies depending on the type and purpose of the target textile product, and can be traced from a wide range. A textile product that also has antibacterial and deodorizing properties for a long time can be obtained.

Fatty acid monochrycerite has a special VC affinity for cotton fibers, and maintains sufficient antibacterial activity even after washing for more than 30 times. It has been found that other natural or l'i synthetic fibers are also effective and durable for at least several washes. This performance can be further improved by concurrently applying a synthetic side surface treatment to the #i2 fibers (for example, treatment of the fibers with a synthetic resin emulsion such as Aku IJ /l/ type, urethane type, etc.).

The product treated with the method of the present invention has been treated with antibacterial processing (4).The product has been treated with deterioration of the physical properties of the original fiber due to the treatment chemicals, such as a decrease in flexibility, and the discovery of water repellency (1) due to sunlight irradiation. Quantification, = ik Deterioration, discoloration, etc. due to reaction with photobleaching agents or the action of chemical bleaching agents, etc. do not occur at all under normal circumstances.

In addition, as shown in the Examples below, the fiber products treated by the method of the present invention exhibit sufficient antibacterial activity against various bacteria and fungi over a long period of time. It is also safe, as evidenced by the fact that monoglyceride is approved as a food additive.

Next, the method of the present invention will be specifically explained with reference to Examples, but the present invention is not limited to these Examples. Note that φ indicates weight % unless otherwise stated.

Example / Stock solution basic prescription fat monoglyceride 30%N
a・boljishi w5-vy nonylphenylnitea 1/
Sylphate (potency number/θ) 5% 1-Kadifuropylene glycol monophthyl ether 7/+7/
5% methanol 30% water
20
% stock solution In the basic recipe, the following fatty acid monochrycerite was used, and each stock solution was sipped by s, ', +4.

Reflection, /° Caprylic monoglyceride (purity approximately 0%)
)original#! :2:Kagrin monoglyceride
O%) Original note, 3: Lauric acid monoglyceride (purity approximately 90%) stock solution μ'' Gengan, 2.3 equal dilution - mixture stock solution 5° Caproic acid, Caprylic acid (A), Capric acid (
B), mixed proboscis of lauric acid (C), myristic acid, valmitin, and stearin modified monoglycenoids (A+B
+C is about 7θ%) Each stock solution was made into a cloth with water to a predetermined degree. Next Ic h+
After soaking the knitted fabric in this solution, it was immediately squeezed to about 1/g/g weight and dried. Each test cloth is JIS L-10/g (
Wash 30 times using method H)? It was made into a highly durable abrasive.

The anti-resistance test is carried out in a leopard petri dish. i7n! Inject and solidify agar agar (for bacteria, PDA medium was used), and then add the above test sample on top of it.
×2 (7nVC cut and molded) A suspension of the following test bacteria/ml was inoculated on the test cloth and the entire surface of the medium.
- Test by inverting the rack and culturing the fungus for 3θcio days. investigated.

In addition, there are two types of commercially available products with anti-difficulty processing (Ta made and sample type I).
: S, aureus, B, aubtilis, E
, Colt 37℃ 2 q hour pre-incubation, 1 hour pre-incubation, 10 ml t)) Sterilization water pressure test True I4: T, mcntagroph
ytes3007 ~ 10 days ago cultured slant was taken from Nino and ground in a mortar for 20 tnl O)
Use 1 bottle of eyebrows in water.

The test results are shown in Table 1.

Table l Kahī resistance 1lIt) Work [l]: 5 or more of the test piece is a dead neck, [Y]: % or less of the test piece is a dead horn, [3]: A test piece, 1
: Do not allow raw stomach (-0) Miscellaneous adhesion: Other germs may be present (2I) (Undetermined).

* Strong territorial nature.

Example λ The antibacterial effect was tested according to the method of Example 1 using acrylic fiber fabric.

In tests 3 and 3, 9% acrylic resin emulsion was added to the test agent. The results are shown in the table.

Table Co Example 3 JIS after treatment with 20 times the stock solution (4) in Example 1
A cotton knitted fabric that has been washed 30 times using the method of L-10/g is soaked in a sodium hypochlorite bath solution (active chlorine 02%).
) for 30 minutes at room temperature, rinsed with water, dried, and compared the antibacterial efficacy before and after treatment with sodium hypochlorite. The results are shown in Table 3.

Table 3 Example q The fatty acid monoglyceride-treated pure knitted double-sided fabric (fluorescent bleach treated) used in Example 1 was exposed to sunlight for a month to observe changes in color tone. At the same time, a monoglyceride treatment was performed on the same fabric, and a comparison test was conducted.

The results were completely the same for the treated and untreated fabrics, with no quantification or discoloration observed.

Example S Solution A A mixture of equal amounts of caprylic acid and capric acid σ monoglycerides (109−) is dissolved in 20 g of ethanol.

Mix this solution with water at 0°C and make it homogeneous.

Solution B: Laurin monoglyceride/79-r7 was dissolved in 999% of ethanol.

B. Dip one pair of socks (acrylic, polyester, nylon, wool blend) into AFL, squeeze each sock to make it 25 times the weight of untreated socks, and dry it with lice. . (The amount of monoglyceride adhered is 7% of the sock weight.) After applying liquid B in an amount equal to the weight of the sock to one leg of a sock, the amount of monoglyceride adhered was 7% of the sock weight. ) 7%) Prepare 3 pairs of each pair of treated socks with one pair of untreated socks, wear them for 7 days, wash them, dry them 3 times, and then dry them for the qth time. Compare the odor using NI:L:1 for several days in a row. The shoes were new athletic shoes. The results are shown in Table G.

1 person with no unpleasant odor - Osaka Kasei Co., Ltd. agent Patent attorney Hase -:'-□'〕Yuyu
B1 and 7 others −゛−

Claims (2)

[Claims] (1) Antibacterial and deodorizing processing method for textile products, characterized by treating the textile products using a liquid containing monoglyceride of saturated fatty acids (2) Is it 71 to use monoglyceride of saturated fatty acid with carbon number g-/2? - Antibacterial and deodorizing processing method for textile products as claimed in claim 1