JP2001271277A - Spun-dyed black polyester fiber structural body and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fiber structural body having an excellent deep color property and a method for producing the same. SOLUTION: (1) This SPUN-dyed black polyester fiber structural body contains an organic pigment and is also dyed with a dispersion dye. (2) The spun-dyed black polyester fiber structural body has a polymer film consisting mainly of a fluorine compound and/or silicone compound on the surface of the above fiber structural body. (3) The method for producing the spun-dyed black polyester fiber structural body is provided by dyeing the polyester fiber structural body containing the organic pigment further with the dispersion dye.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a black-dyed polyester fiber structure excellent in deep color and a method for producing the same.

[0002]

2. Description of the Related Art Synthetic fibers such as polyester fibers have excellent physical and chemical properties and are widely used as general clothing materials. But wool,
Compared to natural fibers such as silk and semi-synthetic fibers such as rayon and acetate, there are drawbacks in that they are inferior in clarity, deeper in color, and inferior in color development, and improvement is desired. For this reason, various methods of soaking a pigment or a dye in a polyester polymer have been conventionally studied. For example, black dyed fibers obtained by adding and mixing carbon black to polyester are generally known, and are widely used for clothing and industrial materials because of their excellent weather resistance and friction fastness. However, there was a problem that the sharpness of hue was inferior.

[0003] In the dyeing and finishing step, a method of coating a fiber surface with a low refractive index resin such as a urethane resin, a fluorine resin, or a silicone resin has been generally known. For example, JP-A-56-73175 proposes a method in which the surface of a fiber colored in a deep color is coated with a urethane resin. Also, Japanese Patent Laid-Open No. 1-1186
Japanese Patent No. 84 contains a coloring agent comprising a specific aqueous resin composition having a refractive index of 1.5 or less polymerized with a polyurethane emulsion and a water-soluble thermosetting resin having a methylol group or an epoxy group as essential components. There has been proposed a method of forming a film on the surface of a fiber by treating with a treatment bath. However, the method of coating the fiber surface with a urethane-based resin as described above has a problem that although the deep-colored property is improved, the decrease in fastness due to the bleeding of the dye is inevitable.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art. A first object of the present invention is to provide a fiber structure having excellent deep color characteristics and It is an object of the present invention to provide a manufacturing method thereof.

Another object of the present invention is to provide a fibrous structure having improved weather resistance and rub fastness in addition to a deep color property, and a method for producing the same.

[0006]

The fibrous structure of the present invention comprises:
The following structure is provided to solve the above-mentioned problem.

That is, it is a black-dyed polyester fiber structure containing an organic dye and dyed with a disperse dye.

Further, the method for producing a black-stained polyester fiber structure of the present invention has the following constitution.

That is, the present invention relates to a method for producing a black-dyed polyester fiber structure in which a polyester fiber structure containing an organic dye is further dyed with a disperse dye.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The black dyed polyester fiber structure of the present invention contains an organic dye and is dyed with a disperse dye.

The organic dye used in the present invention is a pigment or a dye, which may be used, and is preferably a soluble black dye. Nigrosine and / or a derivative thereof may be used from the viewpoint of hue and heat resistance. It can be preferably used. Nigrosine or a derivative thereof is obtained by heating nitrobenzene, aniline, or aniline hydrochloride at 160 to 180 ° C. in the presence of iron or copper, and is represented by nigrosine spirit soluble (CI Solvent Black 5). Nigrosine oil soluble (CI Solvent Black 7) obtained by alkali treatment or reaction with fatty acid, and water-soluble type (CI) obtained by sulfonating Nigrosine Spirit Soluble. Acid Black 2) can be used, but is not limited thereto. These compounds may be used alone or in combination of two or more.

The disperse dye used in the present invention can be used without particular limitation as long as it can dye polyester fibers. Further, the organic dye and the disperse dye used in the present invention, as long as the combination thereof, as a fibrous structure, a black hue, organic dye,
Any hue may be used for each of the disperse dyes. For example, it is preferable to use a complementary color relationship.

In the black dyed polyester fiber structure of the present invention, it is preferable that the fiber structure has a polymer film mainly composed of a fluorine compound and / or a silicone compound on the fiber surface. It is more preferable in terms of properties.

Examples of the fluorine compound include tetrafluoroethylene-hexafluoropropylene copolymer, polypentadecafluorooctyl acrylate, polytetrafluoroethylene, polyfluoroethyl acrylate, polytrifluoroethyl acrylate, polytrifluorochloroethylene, Trifluoroisopropyl methacrylate, polytrifluoroethyl methacrylate, or the like can be used, but is not limited thereto.

As the silicone compound, polydimethylsilane, dimethylpolysiloxane, methylhydrogenpolysiloxane, amino-modified silicone, epoxy-modified silicone, polyether-modified silicone, carboxy-modified silicone and the like can be used, but are not limited thereto. Not something.

In the present invention, these fluorine-based compounds and silicone-based compounds are used in combination or one of them. Each of the polymers, monomers and reaction intermediates may be used alone, or two or more of them may be used. Can also be used in combination.

In the present invention, from the viewpoint of improving the durability of the above-mentioned polymer film to washing and dry cleaning, a polymer or an acrylate polymer comprising a compound having a methylol group on the fiber surface as a polymer component. It is preferable to have a polymer film mainly composed of the above-mentioned fluorine compound and silicone compound via the above. Examples of the compound having a methylol group include, but are not limited to, methylol urea, methylol melamine, methylol ethylene urea, methylol triazone, methylol urone, methylol glyoxal, methylol propylene urea, and the like. is not. As the acrylate polymer, polybutyl acrylate, polyethyl acrylate, polymethyl acrylate, or the like can be used, but not limited thereto.

In the present invention, it is preferable that the refractive index of the polymer film is 1.5 or less from the viewpoint of improving the deep color.

In the present invention, an ionic surfactant is preferably present in the polymer film. Examples of the ionic surfactant include anionic surfactants such as alkylsulfonic acid type, alkyl sulfate ester type and alkyl phosphate ester type, and cationic surfactants such as quaternary ammonium salt type, amine salt type and guanidine hydrochloride. An agent can be used, but is not limited thereto. By the presence of these ionic surfactants in the polymer film described above, a temporary antistatic property can be imparted, and the polymer can be formed into a uniform film, thereby further improving deep color. be able to.

The L value (brightness) of the black dyed polyester fiber structure of the present invention is a value specified in JIS, and
It is preferably from 5 to 12 in that it has excellent deep color characteristics.

The polyester in the present invention may be any polyester that forms fibers, such as polyethylene terephthalate, polypropylene terephthalate and polybutylene terephthalate. The third component is isophthalic acid, 5-sodium sulfoisophthalic acid, polyethylene glycol, adipic acid, bisphenol A and the like may be copolymerized.

The polyester fiber structure in the present invention refers to a woven fabric, a knitted fabric, a non-woven fabric and the like, and includes those subjected to blending, twisting, weaving, and weaving with natural fibers such as cotton and wool. However, the present invention is not limited to these.

In the method for producing a black-dyed polyester fiber structure of the present invention, the method of adding an organic dye to the polyester fiber includes a method of adding the organic dye during the polymerization of the polyester or before chipping, and a method including the organic dye. A method of preparing a master chip in advance and blending it in a chip state or a molten state with the base polymer during spinning,
Alternatively, the organic dye can be contained by a general deposition method such as a method in which a liquid material containing an organic dye is prepared and blended at the time of spinning.

The method of dyeing with a disperse dye may be any of printing and dip dyeing in the post-dyeing step.

In the present invention, the content of the organic dye is preferably 0.1 to 10% by weight based on the weight of the fiber from the viewpoint of improving the deep color performance.

The method for producing a fiber structure according to the present invention further comprises a method of padding, spraying, printing, or the like, on the above-mentioned black-dyed polyester fiber structure by padding, spraying or printing a mixed solution comprising a fluorine compound and a silicone compound or an emulsion. And then heat-treated by dry heat, steaming and superheated steam to form a polymer film on the fiber surface. Further, when applying a solution comprising a compound having a methylol group or an acrylate compound, prior to applying the mixed solution, or the emulsion, may be treated in the same manner, the mixed solution, Alternatively, the treatment may be performed in the same bath as the emulsion. Further, it is preferable to treat the ionic surfactant in the same bath as the mixed solution or the emulsion from the viewpoint of improving the deep color property by forming a uniform film.

In the present invention, from the viewpoint of improving the deep color performance, the polymer film is preferably provided in an amount of 0.1 to 10% by weight, more preferably 0 to 10% by weight, based on the fiber structure. 0.5 to 5% by weight.

The processing liquid used in the present invention may contain a penetrant and a finishing agent, for example, a flame retardant, an antibacterial agent, if necessary.
A deodorant, a water repellent / antifouling agent and the like may be added.

The polyester fiber structure of the present invention is used for school uniforms, women's / men's use, Japanese clothing, lining, etc., and is particularly preferably used for black formal use.

[0030]

EXAMPLES Hereinafter, the present invention will be described more specifically with reference to examples.

The measured values in the examples and comparative examples were obtained by the following methods. <Deep color> The lightness L value was determined using a SM color computer (manufactured by Suga Test Instruments). The L value becomes smaller as the color becomes darker, and becomes larger as the color becomes lighter. <Fastness of friction> According to the method specified in JIS L 0849, the dry and wet states were tested, and the grade was determined using a gray scale for staining.

Example 1 C.I. I. Using polyethylene terephthalate containing 1% by weight of Solvent Black 5, melt-spinning was performed, followed by drawing to obtain a drawn yarn of 83 dtex 36 filaments. Next, the drawn yarn was subjected to S twisting at 1,800 times / m with a double twister to obtain a twisted yarn. Next, this twisted yarn is used as a warp yarn and a weft yarn, and the weaving density is 115 yarns / 2.54 cm and 58 yarns / 2.54c.
m satin fabric.

Next, relax scouring (98 ° C., 20
Minutes), after the intermediate set (180 ° C., 30 seconds), dyed with a commercially available black dye (“Dianix Black BG-FS”), reduced, washed (80 ° C., 20 minutes), washed with water, and dried. .

As shown in Table 1, a fibrous structure having both good deep color and good rub fastness was obtained.

Example 2 As an organic dye, C.I. I. Except for using polyethylene terephthalate containing 1% by weight of Solvent Black 7, the same treatment as in Example 1 was performed.

As shown in Table 1, a fiber structure having both good deep color and good fastness to rubbing was obtained.

Example 3 The same black dyed fabric of satin woven fabric as in Example 1 was immersed in a treatment solution prepared according to the following formulation, and then squeezed at a mangle of 10 using a mangle.
After adhering 0% by weight of the treatment liquid, it was dried at 120 ° C. for 3 minutes, and then heat-treated at 160 ° C. for 30 seconds.

"Max Guard EC243" 4% by weight (manufactured by Kyo-Kin Kasei, fluorine-based water repellent, refractive index 1.38) "Toray Silicon SM8702" 1% by weight (manufactured by Toray Silicone Co., amine-modified dimethylpolysiloxane, refraction) Rate: 1.48) "Sumitex Resin M-3" 0.1% by weight (Sumitomo Chemical, Trimethylol Melamine) "Sumitex Accelerator" 0.1% by weight (Sumitomo Chemical, Trimethylol Melamine Catalyst) " Nice Pole NF20 ″ 1% by weight (Nichika Chemical's cationic antistatic agent) As shown in Table 1, a fiber structure having both good deep color and good rub fastness was obtained.

Example 4 The same treatment as in Example 3 was carried out except that the same black dyed fabric of satin woven fabric as in Example 1 was used, and a treatment solution prepared with the following composition was used.

"Asahigard AG480" 4% by weight (manufactured by Meisei Kasei Co., Ltd., fluorine-based water repellent, refractive index 1.38) "Toray Silicon SM8702" 1% by weight (manufactured by Toray Silicone Co., Ltd., amine-modified dimethylpolysiloxane, refractive index 1.48) "Sumitec Resin AMH" 0.5% by weight (Acrylic ester resin manufactured by Sumitomo Chemical) "Derektor LM3" 1% by weight (Asei Kasei anionic antistatic agent) As shown in Table 1, A fiber structure having good deep colorability and good fastness to rubbing was obtained.

Comparative Example 1 Polyethylene terephthalate 100 containing no organic dye
The same treatment as in Example 1 was carried out, except that a black dyed material of satin woven fabric was used, in which a% cross-section fiber was used for warp yarn and weft yarn.

As shown in Table 1, a product having poor deep color was obtained.

[0043]

[Table 1]

[0044]

According to the present invention, it has excellent deep color properties,
Moreover, a fiber structure having improved weather resistance and friction fastness can be obtained.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) D06P 3/52 D06P 3/52 E 5/08 5/08 Z // D04B 1/16 D04B 1/16 21 / 00 21/00 B D06M 101: 32 D06M 101: 32 F term (reference) 4H057 AA01 AA02 BA02 BA07 BA22 CA12 CA37 CB08 DA01 DA17 DA34 EA01 GA08 HA20 HA90 4L002 AA07 AB02 AC06 DA04 EA00 EA05 FA02 4L033 AA07 AB01 AB01 CA24 CA34 CA59 4L048 AA20 AA21 AA46 AA56 AB07 AB12 AC07 BA01 BA02 CA00 CA09 DA02 DA06

Claims (12)

[Claims] 1. A black-dyed polyester fiber structure containing an organic dye and dyed with a disperse dye. 2. The polyester fiber structure according to claim 1, wherein the surface of the fiber structure has a polymer film mainly composed of a fluorine compound and / or a silicone compound. 3. The black-dyed polyester fiber structure according to claim 1, wherein the organic dye is nigrosine and / or a derivative thereof. 4. The method according to claim 2, wherein the fibrous structure is mainly composed of a fluorine-based compound and / or a silicone-based compound via a polymer comprising a methylol group-containing compound or an acrylate polymer. A black-dyed polyester fiber structure having a polymer film. 5. The polyester fiber structure according to claim 2, wherein the refractive index of the polymer film is 1.5 or less. 6. The black-dyed polyester fiber structure according to claim 2, wherein an ionic surfactant is present in the polymer film. 7. The fiber structure has an L value (brightness) of 8.5 to 1
The black-colored polyester fiber structure according to any one of claims 1 to 6. 8. A method for producing a black dyed polyester fiber structure, wherein the polyester fiber structure containing an organic dye is further dyed with a disperse dye. 9. The process for producing a black-dipped polyester-based fiber structure according to claim 8, wherein a film mainly comprising a fluorine-based compound and / or a silicone-based compound is applied to the fiber structure. 10. The method according to claim 8, wherein the organic dye is nigrosine and / or a derivative thereof. 11. A fiber according to claim 9, wherein a film mainly comprising said fluorine compound and / or silicone compound is provided via a film containing a compound having a methylol group or an acrylate compound. The method of manufacturing the structure. 12. The method for producing a black-dyed polyester-based fiber structure according to claim 9, wherein the coating mainly composed of the fluorine-based compound and / or the silicone-based compound contains an ionic surfactant. .