JPH02307970A - Manufacturing method of deodorizing fiber - 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 <Industrial Application Field> The present invention relates to a method for producing a highly durable deodorizing fiber that deodorizes bad odors such as ammonia.

<Prior art> An attempt to impart deodorizing properties to fibers was made in Journal of the Japanese Society of Textile Technology 41, p. 2
67 (1985), in which ferric phthalocyanine is adsorbed onto rayon, JP-A-62-24387.
There are methods such as using a metal sulfonate group-containing isophthalic acid copolymerized polyester as shown in Japanese Patent No. 3.

Additionally, attempts have been made to apply deodorants obtained from essential oils from components contained in plants to fibers.

However, these products have the disadvantage that the deodorizing effect is insufficient and the deodorizing effect is significantly reduced by washing. Additionally, fibers with antibacterial agents added to them have also been commercialized, but they have no effect at all in deodorizing bad odors once they have occurred.

<Problems to be solved by the invention> The present invention solves the problems of conventional deodorant fibers,
The present invention provides a method for producing deodorizing fibers with excellent durability.

<Means for Solving the Problems> The present invention is directed to the production of deodorizing fibers, which are characterized in that a vinyl monomer having a carboxyl group and a melamine derivative compound are attached to fibers, heat treated, and then metal ions are adsorbed. It's in the law.

In the present invention, the metal ion, which is unstable in the metal ion state, is stably utilized by coordinating it with a carboxyl group. Due to its adsorption properties, it has a remarkable deodorizing effect not found in conventional deodorizing fibers.

The deodorizing fiber of the present invention is a fiber to which a vinyl monomer having a carboxyl group and a melamine derivative compound have been attached and which has been heat-treated and has metal ions adsorbed in an aqueous solution.

The vinyl monomer having a carboxyl group used here includes, for example, acrylic acid, methacrylic acid, itaconic acid, etc., but is not limited to these. is 0.03 mmol/as the amount of carboxyl group
8 or more 0.6 +u+ol/g less than 1 to adhere
It is preferable to set it as the range of -20 weight%. Examples of melamine derivative compounds include trimethylol, hexamethylol, and tributyrolated melamine, and the amount of the melamine derivatives attached to the fibers is preferably in the range of 2 to 10% by weight. Examples of the heat treatment method include a dry heat method, a steaming method, and an in-bath treatment method in which heat treatment and adhesion are performed simultaneously in a bath. In either method, it is desirable to carry out the process at a temperature of at least 40°C or higher. In the case of a steaming method, saturated steaming treatment at 90 to 130°C for 5 to 10 minutes is desirable. 150-2 for dry heat method
Treatment at 00°C for 1 to 5 minutes is desirable. In the case of an in-bath treatment method, treatment at 40 to 100°C for 5 to 60 minutes is desirable, and it is also possible to add a catalyst or the like, if necessary.

In the present invention, metal ions are adsorbed onto the fibers treated in this way.Metal ions as used in the present invention include, for example, Cu.
", Fe", Fe"+AgZZn"+Ti", Cd
"+ Pb"+ In"t Ni"t Cr"t or Lg+, etc. These metal ions can be obtained by dissolving metal salts such as sulfates or nitrates in water. These metal salts are dissolved in water. The treated fibers are immersed in the solution and heated to 50°C or higher as necessary to adsorb metal ions.Adsorption of metal ions is carried out through equivalent bonding corresponding to the molar amount of attached carboxyl groups of the vinyl monomer. It is preferable to set it to 0.03+w equivalent/g or more and less than 0.6 m equivalent/g.

The fibers used in the present invention can be any of acrylic fibers, polyester fibers, nylon fibers, acetate fibers, etc., and are appropriately selected depending on the purpose of use.

<Example> The present invention will be explained below with reference to Examples.

In addition, % in an example means weight %.

Example 1 A knitted fabric of polyester fiber 75 d/25 f was mixed with 6% trimethylolmelamine, 5% carboxyl group-containing vinyl monomer shown in Table 1, 0.5% ammonium persulfate, and 0.5% organic amine salt-based acid catalyst. After being immersed in an aqueous solution containing , it was nipped and steamed at 98°C for 20 minutes. Thereafter, it was washed with water, boiled for 20 minutes in a 1% aqueous copper sulfate solution, and washed with water to obtain deodorizing fibers. 370-
In Erlenmeyer flasks, add ammonia, hydrogen sulfide,
Methyl mercaptan was injected in the amount shown in Table 1, 1 g of each fiber obtained was encapsulated, and the remaining concentration was measured after 30 minutes.

In addition, this fiber was subjected to a 300 hour sunshine weather exposure (equivalent to about 1 year of outdoor exposure) and a hydrolysis test of 70''.
C x 90-100% R) IX for 1 week (equivalent to about 3 years of indoor storage), JISL-0217g was sealed in a 370IIli Erlenmeyer flask prepared to the ammonia concentration shown in Table 2, and after 30 minutes the ammonia When the concentration was measured, as shown in Table 2, it showed an extremely excellent and durable deodorizing effect.

Example 2 A knitted fabric of polyester fibers was immersed in an aqueous solution containing 10% melamine resin, 5% acrylic acid, 0.5% ammonium persulfate, and 0.5% organic amine acid catalyst at a bath ratio of 1:20. , and heated at 60°C for about 30 minutes. After washing with water, 1%
Boiling treatment was performed for 20 minutes in an aqueous sulfuric acid solution at a bath ratio of 1:20, followed by washing with water and drying to obtain deodorizing fibers. In a 3701d Erlenmeyer flask, add 1110 ppm, 470 ppm, and 125 ppp of ammonia, hydrogen sulfide, and methyl mercaptan, respectively.
1 g each of the obtained fibers was encapsulated, and after 30 minutes, the remaining concentration was measured.
pm, hydrogen sulfide Oppm, methyl melecaptan 091
It was 11 mice. In addition, this fiber was subjected to a 300-hour sunshine weather off-site and a hydrolysis test at 70°C x 90~1
00%RH x 1 week, home washing 10 times and dry cleaning 3 times as specified in JISL-0217 103 method, each 1g of fiber was treated with 11090pp of ammonia.
, 11085pp, 1 1201)pm
, sealed in a 310D Erlenmeyer flask adjusted to a concentration of 1070 pp-, and measured the ammonia concentration after 30 minutes, they were 0.9 ppm and Oppm, respectively.
, Oppm, 2.5 ppm, and showed an extremely excellent and durable deodorizing effect.

Example 3 A knitted fabric of polyester fiber was immersed in an aqueous solution containing 10% melamine, 5% acrylic acid, 0.5% ammonium persulfate, and 0.5% organic amine catalyst, and then padded.
Steaming was performed at 8°C for 20 minutes. After that, it was washed with water and treated with a 1% aqueous solution of various metal salts shown in Table 3 for 20 minutes.
The fibers were boiled for a minute and washed with water to obtain deodorizing fibers. 37
Ammonia, hydrogen sulfide, and methyl mercaptan were each injected into a 0 d Erlenmeyer flask in the amounts shown in Table 1, the resulting fibers were sealed in Ig portions, and after 30 minutes, the remaining concentration was measured. As shown in Table 3, extremely excellent deodorizing fibers were obtained.

<Effects of the Invention> The deodorizing fiber according to the present invention is a highly durable fiber that deodorizes bad odors such as ammonia, and can be applied in fields where deodorizing function is required, such as the clothing field, interior storage field, and industrial materials field. It's Uruchino.

Claims (1)

[Claims] 1. A method for producing deodorizing fibers, characterized in that a vinyl monomer having a carboxyl group and a melamine derivative compound are attached to the fibers, heat treated, and then metal ions are adsorbed.