JP2546322B2 - Method for producing deodorant textile products - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is a highly durable deodorant capable of effectively deodorizing a textile product having a deodorizing effect, particularly an odor generated from human waste and the like. Regarding textile products.

(Prior Art) Various types of textile products having a deodorizing function have been conventionally devised. For example, in JP-A-58-220877 and JP-A-59-21777, an antibacterial agent is attached to prevent the generation of microorganisms, or the activity is suppressed to suppress the decomposition of organic acids and prevent the generation of odor. Techniques for reducing are disclosed. Further, in JP-A-61-63716, there is a method of imparting aromaticity to disperse odors, and in JP-A-58-137443, a technology of adsorbing and removing odors by using an adsorbent such as activated carbon. Is disclosed. In addition, JP-A-56-100060,
Japanese Patent Application Laid-Open No. 59-66 discloses a technique for chemically removing a nitrogen-based odor by adding a flavone derivative (monomer) extracted from a plant of theaceae family.

(Problems to be Solved by the Invention) However, the method (1) is not effective from the beginning on substances containing odorous compounds, such as human waste, and the method (2) is not an essential solution, so the deodorizing effect is insufficient. In the method, the deodorizing effect disappears when the saturated adsorption is reached, and the odor is generated again when the ambient conditions such as temperature change, and in the method the flavone derivative extracted from the Camellia plant is isolated. Since it is a polymer, it is difficult to apply it to the fiber surface, and since it is volatilized into the air during use, the deodorizing effect disappears in a short period of time. The present invention provides a textile product that solves the problems of the prior art and has a deodorizing function, that is, a textile product that has an excellent deodorizing function and that has a safe and long-lasting deodorizing effect.

(Means for Solving the Problem) That is, the present invention treats a fiber product with an aqueous solution containing a polycondensation of a flavone derivative or containing a polyphenol and an alkylene glycol having 2 to 6 carbon atoms to give a deodorant component to the fiber product. A method for producing a deodorant fiber product, which comprises polycondensing a flavone derivative or fixing polyphenols. The fibers referred to in the present invention, cotton, wool, natural fibers such as hemp, rayon, recycled fibers such as polynosic,
Semi-synthetic fibers such as acetate and polyacetate, synthetic fibers such as polyamide, acrylic, polyester, and polyurethane. Textile products are cotton of these fibers,
It is a yarn, a woven fabric, a knitted fabric, a non-woven fabric, or a laminate of these.

The deodorant component (polyphenols obtained by polycondensing a flavone derivative) in the present invention is, for example, one extracted from the fruit of astringent persimmon, and the structure thereof is, for example, the structure represented by the general formula (1). Is.

The amount fixed to the fiber is preferably 0.1 to 20.0 wt% based on the weight of the fiber, and more preferably 0.5 to 5.0 wt%. Even if it is applied to textiles in the range of 0.1 wt% or less, the deodorizing effect becomes low and it becomes unsatisfactory,
This is because if the fiber product is applied under the condition of 20.0 wt% or more, the texture of the fiber is deteriorated. In addition, since this deodorant component has the structure of polyphenols obtained by polycondensing a flavone derivative having a deodorant effect, it can be efficiently fixed to a textile product and the durability of the deodorant effect is improved. Suitable for Further, since the deodorant component is a polyphenol obtained by polycondensing a flavone derivative, the saturated vapor pressure is lower than that of the monomer of the flavone derivative, which is also suitable for improving the durability of the deodorant effect.

Examples of the alkylene glycol having 2 to 6 carbon atoms used in the present invention include ethylene glycol, propylene glycol, trimethylene glycol, tetramethylene glycol, pentamethylene glycol, hexamethylene glycol, neopentyl glycol and the like. Propylene glycol is preferred. This is because polyphenols obtained by polycondensing a flavone derivative, which is a deodorant component, are dispersed in water and improved by imparting wettability to the fiber surface. It can be more efficiently fixed in the fiber and on the surface as compared with the case where it is given only by the kind. The addition amount of the alkylene glycol having 2 to 6 carbon atoms is preferably 0.01 to 10.0 wt% of the treatment solution concentration, and more preferably 0.1 to 5.0 wt%. This is because when the amount of alkylene glycol added is 0.01 wt% or less, the wettability of the treatment solution is significantly reduced, and when it is 10.0 wt% or more, the treated fiber product has a sticky feel. Hereinafter, the present invention will be described with reference to examples.

(Example) Example 1 and Comparative Example As a deodorant component, a treated aqueous solution was prepared by using 1.0 wt% of polyphenols obtained by polycondensing a flavone derivative extracted from the fruit of astringent persimmon and 0.5 wt% of propylene glycol. This solution was added to a short fiber polyester cloth at 50 wt% based on the weight of fiber and dried to obtain 0.5 w of the above deodorant component.
A polyester cloth having a deodorizing function imparted with t% was obtained (this is referred to as Sample 1). Further, as a comparative example, a polyester cloth was obtained in the same manner except that propylene glycol was not used (this is referred to as sample 2). These samples 1 and 2 were further examined for ammonia deodorizing effect on granular activated carbon for comparison. As for the evaluation method, a fixed amount of ammonia gas and each sample were put in each tedder bag for each sample, and the ammonia gas concentration was measured with a Kitagawa gas detector tube over time. The deodorizing effect on ammonia is shown in Table 1.

(However, the ammonia deodorizing effect shows the ratio of the difference between the initial ammonia concentration and the residual ammonia concentration after 2 hours with respect to the initial ammonia concentration.) Next, Samples 1 and 2 adsorbing ammonia gas and granular activated carbon and air Put each in the tedora bag 60
The sample was heated under the condition of ℃ × 1 hour, and the ammonia gas concentration before and after heating was measured with a Kitagawa gas detector tube. Table 2 shows the results.

Example 2 and Comparative Example The following evaluations were performed on Sample 1 and Sample 2 prototyped in Example 1. Further, as a comparative example, a treatment aqueous solution was prepared by using 1.0 wt% of the flavone derivative (phenolic monomer) represented by the formula (2) as a deodorant component and 0.5 wt% of propylene glycol. This was applied to carbon fiber polyester cloth in an amount of 50% by weight based on the weight of the fiber and dried to obtain a polyester cloth having the deodorizing function to which 0.5% by weight of the above deodorant component was added (this is referred to as Sample 4). . Also, 1.0 wt% of flavone derivative (phenolic monomer), 0.5 wt% of propylene glycol and 5.0 wt% of acrylic acid resin.
A treatment aqueous solution was prepared using wt%. This was applied to a short fiber polyester cloth in an amount of 50 wt% based on the weight of the fiber and dried to obtain a polyester cloth having the deodorizing function to which the above deodorant component was added by 0.5 wt% (this is referred to as Sample 5) .

As an evaluation method, each sample 1, 2, 4 and 5 washed according to JIS-L-1042.G was put in a tedra bag of 1 together with a certain amount of ammonia gas, and the Kitagawa gas was sequentially detected by a detector tube. The ammonia gas concentration was measured.
The deodorizing effect on ammonia is shown in Table 3.

(However, the ammonia deodorizing effect indicates the ratio of the difference between the initial ammonia concentration and the residual ammonia concentration after 2 hours with respect to the initial ammonia concentration.) Example 3 and Comparative Example In Example 1, polyester was used instead of polyester cloth. A polyester futon cotton (Sample 6) having a deodorant function was obtained in the same manner except that futon cotton (hollow section, 6d-64 mm cut) was used. As a comparative example, a polyester cotton wool (Sample 7) was obtained in the same manner except that propylene glycol was not used.

Example 1 for these samples 6 and 7 and granular activated carbon
Similarly, the deodorizing effect on ammonia gas was compared. The results are shown in Tables 4 and 5.

(Effect of the invention) In the deodorant fiber product treated by using the polyphenols obtained by polycondensing the flavone derivative as the deodorant component and the specific alkylene glycol according to the present invention, the deodorant component is efficiently adhered to the fiber product, Not only the deodorant property is high, but also the durability can be remarkably improved.

Claims (1)

(57) [Claims] 1. A method for producing a deodorant fiber product, which comprises treating the fiber product with an aqueous solution containing polyphenols in which a flavone derivative is polycondensed and an alkylene glycol having 2 to 6 carbon atoms.