JPH10102379A - Deodorant polyester fiber structure excellent in washing durability - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject structure good in a deodorizing property and a touch, and useful in the fields requiring high washing durability, such as uniform wears and sports wears, by imparting a deodorizing agent to the fiber structure through a siloxane bond-having binder resin. SOLUTION: This deodorant polyester fiber structure is obtained by imparting a deodorizing agent (e.g. a composite oxide having a Si:Zn of 50:50) to a fiber structure consisting mainly of polyester fibers through a siloxane bond-having binder resin e.g. a resin of the formula [(m) is an integer of 5-1200; (n) is an integer of 1-50; R1 -R3 are each independently H, methyl, ethyl, amino, epoxy, carboxyl, carbinol, methacryl]}.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a deodorant polyester fiber structure having excellent washing durability, and more particularly, to use in a field where high washing durability is required, such as uniforms, sportswear and sheets. The present invention relates to a deodorant polyester fiber structure having excellent deodorizing properties and texture and excellent in washing durability.

[0002]

2. Description of the Related Art With the diversification of living environments aiming for comfortable living, human interest in odors has been greatly increased.
Japanese Patent Application Laid-Open No. 2-157040 discloses a method of melt-spinning a fiber raw material mainly composed of a thermoplastic polymer compound having a fiber-forming ability and an adsorbent for adsorbing odor, for the purpose of removing malodor with a fiber structure. ) And those in which a deodorant is applied via a polyurethane-based resin composition in post-processing (for example, JP-A-7-216751).

However, in the above-mentioned method of melt-spinning a fiber raw material mainly comprising a thermoplastic polymer having a fiber-forming ability and a deodorant, although the durability is obtained, the deodorant is used in the spinning process. There is no versatility in selecting a deodorant because the thermal stability and the particle size of the material become problems. On the other hand, in post-processing deodorant processing, although the deodorant has versatility,
The adhesiveness between the polyurethane resin or polyester resin and the material fiber is weak, causing a problem in durability.If the amount of binder is increased in order to increase the durability, the texture becomes hard, and therefore, high washing resistance such as uniforms and sportswear It is very difficult to apply to the required fields.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a washing durability having excellent deodorizing properties and texture for use in a field where high washing durability is required. An object of the present invention is to provide an excellent deodorant polyester fiber structure.

[0005]

The present invention relates to a fibrous structure mainly composed of polyester fibers, in which a deodorant is provided via a binder resin having a siloxane bond. A deodorant polyester fiber structure having excellent washing durability.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The polyester referred to in the present invention is
Polyester containing terephthalic acid as a main dicarboxylic acid component and at least one kind of glycol, preferably at least one kind of alkylene glycol selected from ethylene glycol, trimethylene glycol, tetramethylene glycol and the like. In the polyester, the third component may be modified by copolymerization and / or blending as necessary.

[0007] The polyester may contain optional additives such as a catalyst, a coloring inhibitor, a heat-resistant agent, a flame retardant, an antioxidant, and inorganic fine particles, if necessary. In the present invention, the fiber structure is a yarn,
Cotton, rope, woven fabric, knitted fabric, non-woven fabric, etc., in addition to polyester fibers, natural fibers such as cotton and wool, recycled fibers such as rayon and acetate, and synthetic fibers other than polyester fibers are blended in the fiber structure. It may be used by interweaving or knitting. Thus, in the present invention, the fiber structure mainly composed of polyester fibers uses polyester fibers produced from the polyester as the constituent fibers of the fiber structure.

[0008] As the polyester fiber constituting the fiber structure of the present invention, it is possible to use even a polyester fiber whose alkali weight has been reduced, and this makes it possible to increase the contact area between the binder and the polyester fiber. This is preferable because it can be performed.

The deodorant used in the present invention includes:
There is no particular limitation, and any of inorganic, organic, and natural deodorants can be used. Above all, thermally stable,
An oxide or a composite oxide, more preferably a composite oxide, of at least one element selected from the group consisting of Zn, Si, Ti, Fe, Al and Zr, having a BET specific surface area of 100 m ² / An inorganic deodorant having an average particle size of 5 g or more and a particle size of 5 g or less is particularly preferable. Specific examples of the deodorant include, for example, a composite oxide of Si: Zn = 50: 50 [trade name “Zaobatac P” manufactured by Daiwa Chemical Co., Ltd.]
SB ", BET specific surface area 105 m ² / g, average particle size 1
μm].

The amount of the deodorant used in the present invention is preferably 0.5 to 10% by weight, more preferably 0.5 to 5% by weight, particularly preferably 1 to 5% by weight, based on the fiber structure. ~
3% by weight. If the amount is less than 0.5% by weight, the deodorizing effect is not exhibited, while if it exceeds 10% by weight, the durability of the deodorizing effect is reduced.

The binder resin having a siloxane bond used in the present invention refers to a siloxane bond (Si--O--S
It means a compound having i) as a skeleton, and is preferably a resin represented by the following formula (I).

[0012]

Embedded image

In the above general formula (I), m is 5 to 1,200
, N is an integer of 1 to 50, and R ₁ , R ₂ , and R ₃ are each a hydrogen atom, a methyl group, an ethyl group, an amino group, an epoxy group, a carboxyl group, a carbinol group (—CH ₂ O
H) and at least one organic group selected from the group of methacrylic groups (-CH = CMeCOOH), thereby controlling the contact property, texture and the like with the raw polyester base cloth. be able to.
Specific examples of the binder having a siloxane bond include a dimethylsiloxane compound represented by the following formula (II).

[0014]

Embedded image

[In the general formula (II), R represents a methyl group or a hydrogen atom. ]

Further, by blending a binder resin having a siloxane bond as shown in the above general formula (I) into a polyurethane resin or a polyacryl resin by copolymerization and / or blending, the feeling, the adhesiveness, It is also possible to control the robustness and the like.

The deodorant and the binder resin having a siloxane bond are dissolved in an organic solvent such as heptane, acetone, methyl ethyl ketone, methyl isobutyl ketone, ethyl acetate, butyl acetate, mineral terpene, and isopropyl alcohol to prepare a treatment solution. May be used, or may be self-emulsified as it is, or a suitable emulsifier, for example, a higher alcohol sulfate, an alkylbenzene sulfonate, a higher alcohol polyoxyalkylene adduct, a higher fatty acid polyoxyalkylene adduct, Used by emulsifying with higher fatty acid sorbitan ester.

The mixing ratio (weight ratio) of the deodorant and the binder resin having a siloxane bond is preferably
0.5 / 1 to 10/1, more preferably 2/1 to 5
/ 2. If it is less than 0.5 / 1, the deodorant will be covered with the binder, and the deodorant effect will not be exhibited.
If it exceeds 0/1, the durability of the deodorizing action is reduced.

The processing in the present invention can be performed at any stage of raw cotton, yarn, and woven or knitted fabric. The processing method can be performed by any method such as a dipping method, a pad drying method, a spray method, a coating method, and a laminating method, and can be appropriately selected depending on the form of the fibrous structure, the resin, and the type of the solution. . Also, after applying a deodorant and a binder resin to the fiber structure, usually,
By performing a heat treatment at room temperature to 180 ° C. for about 1 to 120 minutes, the state of attachment of the deodorant to the polyester fibers is suitably fixed.

[0020]

The present invention will be described more specifically with reference to the following examples. Incidentally,% in Examples and Comparative Examples is:
Unless otherwise specified, it is based on weight, and physical properties were evaluated by the following measurement methods. The initial concentration of the deodorant odor component was set to 200 ppm of ammonia and 20 ppm of hydrogen sulfide, and the sample amount was 2 g / liter and the total amount was 3 ppm.
The odor component remaining concentration in the container was measured with a detector tube at a measuring time of 60 liters and the deodorizing rate was calculated.

Deodorizing Durable Washing A sample was washed 100 times according to the method of JIS L-1018.

[0022] Example 1 Normal using polyester fibers of 100% uniform base fabric (basis weight 100 g / m ^2), a silicone resin [Shin-Etsu Silicone Co., Ltd., KM2002L-1] 2.0%,
1. Deodorant [Zobabat PSB, manufactured by Daiwa Chemical Co., Ltd.]
It was padded with an aqueous dispersion containing 0%, dried at 130 ° C. for 3 minutes, and treated at 180 ° C. for 1 minute. The deodorizing property of ammonia and hydrogen sulfide was evaluated using this cloth.

Example 2 The same fabric as in Example 1 was used, and 2.0% of silicone resin was used.
Was replaced with 2.0% of a silicone-urethane copolymer resin (Elastron KS-18, manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd.), and the same treatment as in Example 1 was performed to evaluate the deodorant properties. did.

Example 3 Using the same fabric as in Example 1, silicone resin 2.0%
Was replaced with 2.0% of a silicone-acrylic copolymer resin (Charine FE-230, manufactured by Nissin Chemical Co., Ltd.), and the same treatment as in Example 1 was performed to evaluate deodorant properties. .

Comparative Example 1 Using the same fabric as in Example 1, silicone resin 2.0%
Instead of polyurethane resin [Daiwa Chemical Co., Ltd., U
-30] The same treatment as in Example 1 was performed except that 2.0% was used, and the deodorizing property was evaluated.

Comparative Example 2 Using the same fabric as in Example 1, silicone resin 2.0%
Was replaced with 2.0% of a polyacrylic resin (manufactured by Dainippon Ink and Chemicals, Inc., Boncoat AN865), and the same treatment as in Example 1 was performed to evaluate deodorant properties.

Comparative Example 3 The same fabric as in Example 1 was evaluated without deodorizing. (Blank test) These evaluation results are shown in Table 1.

[0028]

[Table 1]

[0029]

According to the present invention, when a deodorant is applied to a fiber structure mainly composed of polyester, the deodorant is applied via a binder resin having a siloxane bond. The excellent permeation and adhesion of the binder resin having a bond to the polyester fiber structure and the deodorant significantly improve the washing durability of the finally obtained deodorant polyester fiber structure, so that uniforms and sports It is particularly useful in applications requiring high durability, such as wear and sheets.

Claims (3)

[Claims] The present invention relates to a fiber structure mainly composed of polyester fibers, wherein a deodorant is applied to the polyester fibers via a binder resin having a siloxane bond. Excellent deodorant polyester fiber structure. 2. The method according to claim 1, wherein the deodorant is Zn, Si, Ti, Fe, Al.
And at least one element selected from the group consisting of
The deodorant polyester fiber structure according to claim 1, which is an oxide or a composite oxide. 3. The polyester fiber structure according to claim 1, wherein the binder resin having a siloxane bond is a compound represented by the following general formula (I). Embedded image [In the general formula (I), m is an integer of 5 to 1,200, and n is 1
R ₁ , R ₂ and R ₃ are each a hydrogen atom;
It represents at least one arbitrary organic group selected from the group consisting of a methyl group, an ethyl group, an amino group, an epoxy group, a carboxyl group, a carbinol group, and a methacryl group. ]