JPH03269171A - Deep-colored polyester fiber cloth and production thereof - Google Patents

Abstract

PURPOSE:To obtain the subject cloth having excellent deep color and permanence of the color by heat treating dyed polyester fiber cloth in a treating solution containing polyepoxide compound and treating with fine particles of silica having amino group. CONSTITUTION:Dyed polyester fiber cloth is heat treated in a treating solution containing polyepoxide compound (e.g. 3,4-epoxycyclohexene carboxide) and resultant cloth is treated with fine particles of silica having amino group to afford the aimed cloth having the surface coated with fine particles of silica having amino group through a polyepoxide compound.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a deep-colored polyester fiber fabric and a method for producing the same.

[Prior Art] Many studies have been made to improve deep hues, especially black bathochromic properties, particularly in polyester fibers.

For example, dyed fiber fabrics are treated with compounds with a low refractive index, such as fluorine-based treatment agents (such as JP-A-57-176275), silicone-based treatment agents (such as JP-A-64-45466), and urethane-based treatments. agent (JP-A-57-2968
There is a method of coating the surface of the fiber with a material such as Japanese Patent Publication No. 2). Although the level of deep coloring can be improved by these means, problems such as a decrease in bathochromic degree due to dry cleaning washing processing and color bleeding due to dye bleed-out are likely to occur as the bathochromic property improves. There were problems with the durability of the bathochromic effect.

On the other hand, there is a method of forming fine irregularities on the fiber surface to prevent diffuse reflection of light on the fiber surface and to deepen the color.As a technical means, polyester fiber with a microporous forming agent added thereto is treated with alkali. There is a method of removing the microporous forming agent using a method (such as Japanese Patent Application Laid-open No. 120728/1982), and a method of plasma etching the fiber surface to form fine irregularities (Japanese Patent Publication No. 59-11709, 6
0-37225, etc.).

Furthermore, there is a method in which textile products are treated in advance with a compound having a low refractive index and then subjected to low-temperature plasma treatment (for example, Japanese Patent Application Laid-Open No. 61-97490).

By forming fine irregularities on the fiber surface using these methods, deep coloring can also be improved, and especially when the surface is coated with a compound with a low refractive index, the bathochromic degree can be considerably improved. It is easily destroyed and, for example, when fabrics are rubbed together or tangled during washing, the bathochrome effect tends to deteriorate significantly, and it cannot be said that the bathochrome durability is necessarily at a sufficient level.

[Problem to be solved by the invention]

The present invention aims to provide a dyed polyester fiber fabric which has improved the durability of the bathochromic effect, which is a problem with conventional bathochromic technical means, particularly at a high bathochromic level, to a level that does not pose any practical problem. purpose.

[Means to solve the problem]

The present invention provides a deep-colored polyester fiber fabric, characterized in that the surface of the dyed polyester fiber fabric is coated with silica fine particles via a polyepoxide compound, and a method for producing the same.

The present invention targets dyed polyester fibers. Here, dyed polyester fiber refers to one that has been heat-treated using a dye at a high temperature of 100°C or higher. Generally, a disperse dye is used as the dye, but in the case of modified polyester fiber, Cationic or acid dyes may also be used. In addition, as a dyeing method,
Dipping dyeing, thermosol printing, and printing are all applicable.

The polyester fiber in the present invention refers to a polycondensate of a glycol component such as ethylene glycol, trimethylene glycol, or 1,4-butanediol and a dicarboxylic acid component such as terephthalic acid, isophthalic acid, malonic acid, or succinic acid, or a glycol component. Alternatively, it may be a polyester copolymer copolymerized with another third component as part of the dicarboxylic acid component, or a fiber made of a blend of these polyester polymers and other polymers.

In addition, such polyester fibers may contain optional additives such as catalysts, color inhibitors, heat resistant agents, flame retardants,
Antioxidants, inorganic fine particles, etc. may also be included.

In the present invention, polyester fibers may be used by blending, inter-knitting, inter-weaving, etc. with natural fibers such as cotton and wool, regenerated fibers such as rayon and acetate, and synthetic fibers other than polyester, as necessary. do not have.

Further, in the present invention, polyester fibers that have been subjected to alkali weight loss treatment can be used, and it is also possible to exhibit a sufficient deep color effect.

As the polyepoxide compound used in the present invention, a compound containing at least two or more epoxy groups in one molecule in an amount of 0.2 g equivalent or more per 100 g of the compound is preferably used, such as ethylene glycol, glycerol, sorbitol, pentaerythritol, reaction products of polyhydric alcohols such as polyethylene glycol and halogen-containing epoxides such as epichlorohydrin;
Reaction products of polyhydric phenols such as resorcinol/bis(4-hydroxyphenyl)dimethylmethane, phenol/formaldehyde resin, and resorcinol/formaldehyde resin with the above halogen-containing epoxides, unsaturated compounds with peracetic acid or hydrogen peroxide, etc. polyepoxide compounds obtained by oxidizing, i.e., 3,4-epoxycyclohexeneboxide, 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexenecarboxylate, bis(3,4-epoxy-6-methylcyclohexylmethyl) Examples include adipate. Among these, reaction products of polyhydric alcohols and epichlorohydrin, ie, polyglycidyl ether compounds of polyhydric alcohols, are particularly preferred because they exhibit excellent performance.

Such a polyepoxide compound is usually preferably used as an emulsion.

To make an emulsion or solution, for example, such a polyepoxide compound as it is or dissolved in a small amount of a solvent as necessary may be added with a known emulsifier such as sodium alkylbenzene sulfonate, dioctyl sulfosuccinate sodium salt, or nonylphenol ethylene oxide. Emulsify or dissolve using something.

In the present invention, the amount of the polyepoxide compound used is not particularly limited, but in order to impart durable bathochromic properties to the polyester fiber, it is necessary to
Examples include those used in a range of 10% by weight.

If the amount of the polyepoxide compound used is less than 0.1% by weight, a durable bathochromic effect cannot be obtained, while if it exceeds 10% by weight, the bathochromic property and its durability will not necessarily be improved. Moreover, it is not preferable because it causes texture and other defects.

In addition, the processing temperature of the polyepoxide compound is 70 to 13
A range of 0°C is preferred, and a range of 80 to 100°C is more preferred. The treatment temperature with polyepoxide compound is 7
If the temperature is below 0°C, the durability of bathochromic properties will be insufficient, while if the temperature exceeds 130°C, the durability of these properties will not necessarily improve further and may even deteriorate, so processing should be carried out within the above range. It is preferable to do so.

Moreover, the processing time for the polyepoxide compound is preferably 1 minute or more, and more preferably 5 to 60 minutes.

As long as such conditions are met, the treatment method may be a high-temperature continuous treatment or a so-called batch method in which the fibers are introduced from room temperature, then heated and treated at a predetermined temperature.

The silica fine particles having an amino group used in the present invention are, for example, a compound obtained by reacting fine powder silica having an average particle diameter of 1 to 5 μm with a solution in which aminosilane is dissolved in water or a lower alcohol such as methanol.

Silica fine particles having an amino group are, for example, Aerosil #
200 (manufactured by Nippon Aerosil Co., Ltd.) with a solution of gamma (2-aminoethyl)-aminopropyltrimethoxysilane or aminopropylethoxysilane dissolved in water or a lower alcohol such as methanol by spraying or the like. It will be done. Here, Aerosil #
The ratio (weight ratio) of 200 and aminosilane is generally 1.
00:0.01 to 100:100 is preferable, and 1oo:
o, i to 100:3 is more preferred.

These amino group-containing silica particles are, for example, toluene, xylene, n-hexane, heptane, acetone,
A treatment solution may be prepared by dissolving it in an organic solvent such as methyl ethyl ketone, methyl isobutyl ketone, ethyl acetate, butyl acetate, mineral turpentine, or isopropyl alcohol, and may be applied to the polyester fiber fabric by spraying, mangling, dipping, or other methods. , directly emulsified by self-emulsification, or emulsified with a suitable emulsifier such as higher alcohol sulfate ester salt, alkylbenzene sulfonate, higher alcohol polyoxyalkylene adduct, higher fatty acid polyoxyalkylene adduct, higher fatty acid sorbitan ester, etc. It may be attached to the polyester fiber fabric by methods such as spraying, mangling, and dipping.

In the present invention, the amount of the silica fine particles having an amino group used is preferably 0.0000000000000000 with respect to the polyester fiber fabric.
It is 1 to 10% by weight, more preferably 0.5 to 3% by weight. The greater the amount used, the greater the deep color effect, but on the other hand,
Problems arise such as the durability is impaired, the fastness to friction is greatly reduced, and the texture becomes rough and hard.

On the other hand, if it is less than 0.1% by weight, it is not preferable because the deep color effect is poor.

[Effect]

The present invention is characterized in that a polyester fiber fabric is pretreated with a treatment liquid containing a polyepoxide compound. Due to this pretreatment, it is not clear how the polyepoxide compound adheres to the polyester fiber fabric, but it is highly durable without damaging the initial deep color effect even after washing, dry cleaning, and abrasion treatments. It is presumed from this that the polyepoxide compound is firmly attached to the surface of the polyester fiber or has partially penetrated into the interior of the polyester fiber, resulting in amino groups that can react with the epoxy groups of the polyepoxide compound added later. It is considered that the silica fine particles having the above-mentioned properties coat the surface of the polyester fiber with good durability.

This is the difference between conventional compounds having an epoxy group and compounds having an amino group. Conventionally, these compounds have been reacted in advance and used as a treatment agent, or these compounds have been mixed and used as a treatment agent. Since the treatment was carried out in a liquid, the polyester fibers were not necessarily coated in a good manner, and the durability of the deep color effect was not satisfactory.

〔Example〕

Hereinafter, the present invention will be explained in more detail with reference to Examples. Note that % is based on weight unless otherwise specified.

In addition, performance measurements, washing, dry cleaning, and friction treatments in Examples were performed under the following conditions.

■As a measure of the bathochromic effect, bathochromicity (K/S) was used. This value defines the reflectance of the sample at 500 nm as R
Then, the Kubel force Munk (Kubelka-Munk) shown below is
Munk).

K/S=(1-R) 2/2R The larger this value is, the greater the deep color effect is.

Measurement is done using Macbeth Color Eye (MacbethCOL).
OR-EYE Model M-2020PL) was used.

Using a household electric washing machine (National, NA-68OL), add 2g/j2 solution of New Enzyme Zabu (manufactured by Kao) to 30. A cotton cloth was added along with the sample so that the bath ratio was 1:30, and the sample was washed in a swirling stream at 40°C for 10 minutes. After that, it was dehydrated, washed with hot water 302 at 40°C for 5 minutes, and dehydrated.
Overflow washing was performed for 10 minutes, dehydration, and air drying. This treatment was repeated 5 times and washed 5 times to evaluate the deep color property.

3'-Italy cleaning method is carried out according to the method specified in JIS-L-0844, and this process is repeated 5 times to obtain 5 dry cleaning treatments.
Bathochromic properties were evaluated.

[Phase] In accordance with the rub fastness test of star cover JIS-L-0849, the sample was mounted on a test stand, and the same sample as the sample to be rubbed was kept approximately 100% wet with distilled water as a friction cloth. It was attached to the contact surface and rubbed back and forth 20 times with a load of 200 g to evaluate the deep color of the friction portion of the friction cloth.

Example 1 Polyester filament yarn (115 denier/24 filaments) with an elongation of 115% obtained by spinning at a spinning speed of 3,200 m/min and a polyester filament yarn with an elongation of 345% obtained by spinning at a spinning speed of 1,380 m/min. Polyester filament yarns (225 denier/72 filaments) were aligned and subjected to intertwining treatment and stretching and false twisting.

That is, with the interlaced nozzle, the overfeed rate is 2.5%, the pneumatic pressure is 3.5 kg/cIl
1 to give a degree of entanglement of 60 pieces/m, and then the stretching ratio was 1.56 times, the heater temperature was 180°C, the surface speed of the friction false twisting device was 630 m/min, and the second pre-heli roller speed was 350 m/min.
Stretching and false twisting were performed under conditions of m/min and K value (untwisting tension/heating tension) of 1.05.

The obtained processed yarn has a wrapped portion of 8 pieces/1 on average, oa
m, there were voids between the filaments, and there were an average of 2/10 gently converging winding parts as a whole.

Using the thus obtained false-twisted two-layer structure system, a satin georgette fabric was woven as follows.

The obtained fabric was subjected to conventional grain raising, heat setting, and alkali weight loss (loss rate: 20%), and then dyed and reduction washed under the following conditions.

The treated fabrics were evaluated for bathochromic properties and durability, and the results are shown in Table 1.

[Prescription (A)]

Sorbi - Rubogu 1 Sigil Ale 5 ow [H Thereafter, it was washed with water and dried.

Next, it was immersed in a treatment solution adjusted to the following formulation (A) (bath ratio 1:20), heated from room temperature at a rate of 2°C/min, treated at a temperature of 100°C for 30 minutes, washed with water and dried.

Subsequently, the fabric was impregnated in a padding bath prepared according to the following formulation (B), and then squeezed at a squeezing rate of 100%, and heated to a temperature of 12
After drying at 0°C for 1 minute, heat treatment was performed at a temperature of 160″C for 1 minute.

0-CH2Cl-CH2 ゝ0' (Product name, Bunacol EX-611, manufactured by Nagase Kasei ■) Note that this sorbitol polyglycidyl ether (Bunacol EX-611) has been mixed with an emulsifier (trade name,
Neocol SW (manufactured by Daiichi Kogyo Seiyaku ■) was emulsified (use ratio Bunacol EX-611/Neocol 5W = 5/4).

[Prescription (B)]

Gamma (2-aminoethyl)-
Aminopropyltrimethoxysilane was dissolved in water at a ratio of 100:1, contacted with a spray, and dispersed to a solid content of 20%.

Comparative Example 1 Using the same fabric as in Example 1, it was dyed black and then the formulation (
Comparative Example 1 is a case in which processing according to A) and Recipe (B) is not performed, and evaluation is performed in the same manner as in Example 1, and the results are shown in Table 1.

Comparative Example 2 Comparative Example 2 was prepared by using the same fabric as in Example 1 and performing the same processing as in Example 1, except that the treatment with prescription (A) was not performed.

Table 1 [Effects of the Invention] According to the present invention, the bathochromic properties and durability of polyester fiber fabrics can be improved to a level that poses no practical problems.

Claims (2)

[Claims] (1) A deep-colored polyester fiber fabric characterized in that the surface of the dyed polyester fiber fabric is coated with silica fine particles having amino groups via a polyepoxide compound. (2) A method for producing a deep-colored polyester fiber fabric, which comprises heat-treating a dyed polyester fiber fabric with a treatment liquid containing a polyepoxide compound, and then treating the polyester fiber fabric with silica fine particles having amino groups. .