JPS58220876A - Hydrophilicity imparting treatment of polyester 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 The present invention relates to a method for hydrophilizing polyester fibers.

Although it has excellent physical properties, it is antistatic because it is hydrophobic.

Currently, it has many drawbacks in terms of water absorption, antifouling properties, etc., and its uses are currently limited.

Many methods have been studied in the past to improve these drawbacks, but they are still not sufficient.

In other words, methods are known in which a hydrophilic substance is blended at the yarn manufacturing stage and a method in which a hydrophilic substance is attached to the fiber surface at the dyeing and finishing stage, but the former results in a decrease in spinnability and a decrease in yarn physical properties. , and there are problems such as decreased staining properties, and the latter also has problems.

Problems such as performance variations due to insufficient adhesion or uneven adhesion of hydrophilic substances remain unresolved.

The present inventors aimed to solve such problems.

Through repeated research, he discovered a hydrophilic compound with high affinity for polyester fibers, and has already filed a patent application in 1983-6649.
It is proposed as 0. Although this hydrophilic compound also has good hydrophilic properties, it has problems in terms of high adhesion, which is the objective of the present invention, simultaneous dyeing processing in medium-dark color dyeing, and dye fastness, especially wet fastness. was there.

The present inventors have conducted extensive research and have developed the present invention in order to improve the adhesion efficiency of fibers during dipping treatment, as well as to improve the problems of simultaneous dyeing and dyeing fastness in medium and dark colors, and a decrease in dye fastness, especially wet fastness. Reached. That is, the present invention uses cationic dye-dyeable polyester fibers of the following general formula (1).
) (hereinafter referred to as compound 1) or /
and a method of immersing the polyester in a treatment solution consisting of a compound represented by the following general formula (n) (hereinafter referred to as compound 2) and heat-treating the polyester, which is characterized in that a cationic dye-dyeable polyester fiber is used as the polyester fiber. The present invention relates to a method for making hydrophilic fibers.

)-1 Ren 1 (In the formula, R1 to R8 are H or an alkyl group having 1 to 2 carbon atoms, CI!, Br, ■, OOH; , 002H5
゜ is an integer from 1 to 60, and is X + 7 + Z and x + y +
z is 5 to '50, and more than half of the alkylene ether groups are ethylene oxide. A indicates one type of group selected from 10-1 or does not exist (benzene nuclei are directly bonded to each other). ) Here, the content of the second invention will be explained in more detail.

Compound 1 according to the present invention is, for example, (00,H4
),. -〇-C-OH=OH21 CH.

(QC2H4), 5-O-C-CH=CH21 (QC2H4)2o-0-C-CH=CH21 0CH.

OCR.

OCR.

CH,0 0CH.

OC)I.

CH,0, etc. can be mentioned, but there is no need to limit it to these.

Compound 2 in the present invention is a monovinyl compound of compound 1, such as OCH.

OOH.

There is no need to limit it to these examples.

These hydrophilic compounds used in the present invention are compounds having a structure consisting of a part having fiber affinity and a part having hydrophilicity, and further having a vinyl group that can be made into a polymer.

The degree of polymerization of the hydrophilic portion, i.e., alkylene ether, exists within a suitable range; if the degree of polymerization is too low, the affinity with the fibers will be too strong, and although an adsorption effect will be produced, the hydrophilic performance will be insufficient.

On the other hand, if the degree of polymerization is too high, it will not be adsorbed to the fibers.

Furthermore, as the number of carbon atoms in polyalkylene oxide increases, its affinity with fibers increases, but its hydrophilic performance decreases.

Therefore, in view of the balance between affinity with fibers and hydrophilic performance, it is desirable that the degree of polymerization of alkylene ether is about 10 to 20 repeats of alkylene ether groups, and more than half of the alkylene ether groups should be ethylene oxide. is desirable. In this case, as the degree of polymerization of ethylene oxide increases, it is expected that the antistatic properties and water absorbing properties will improve, but on the other hand, it becomes difficult to adsorb onto fibers.

Even in the range of the repeating number of ethylene oxide groups where performance is actually very good, fairly good adhesion can be obtained even when cationic dye-dyeable polyester fibers are soaked with this hydrophilic compound alone.

Immersion treatment in a treatment liquid containing the hydrophilic compound 1 and the hydrophilic compound 2 is particularly effective. Here, the treatment concentration of the hydrophilic compound 1 is 0.1
-20% by weight, preferably 1-10% by weight,
The treatment concentration of the hydrophilic compound 2 is not particularly limited.

Further, the cationic dye i" dyed polyester fiber used in the present invention refers to various cationic dye dyeable polyester fibers as typified by Japanese Patent Publication No. 10497/1983. That is, bis(β-hydroxyethyl) terephthalate is mixed with an alkali metal compound, particularly preferably lithium carbonate or aliphatic carboxylic acid lithium salt, and bis(β-hydroxyethyl) 5- as a diethylene glycol by-product inhibitor.
Method of polycondensation by adding sodium sulfoisophthalate, dimethyl terephthalate, dimethyl 5-sodium sulfoisophthalate (t or bis<β-hydroxyethyl) 5-sodium sulfoisophthalate, ethylene glycol and hishiethylene Alkali metal compound as a glycol by-product inhibitor.

Particularly preferred are cationic Kasshina-machi-type polyester fibers obtained by polycondensing a mixture of lithium carbonate or aliphatic carboxylic acid lithium salts by transesterification in the presence of a conventional catalyst. Here, mtp;
in polyester fiber.

In dyeing, a dispersed chestnut dye is required, so in the simultaneous processing of chestnut color using the above-mentioned hydrophilic @ material, the dye acts as an inhibitory effect, making it difficult to polymerize one time.
- The wet fastness of dye fasteners 171 deteriorates over time due to heat setting even for those treated with chemicals. However, the cationic dye-dyeable polyester fiber used in the present invention can be dyed a chestnut color with the cationic dye, so it can be dyed and processed simultaneously with the hydrophilic compound, and the chestnut color fastness does not deteriorate due to heat setting. Excellent color fastness, especially wet fastness, can be obtained.

Further, even if the above-mentioned polyester fibers are used alone or in combination, the effects of the present invention can still be effectively utilized regardless of whether the polyester fibers are in the form of threads or fabrics or in the form of staples. Among these forms, the fabric form is particularly effective.

The processing method τ of the present invention will be described in more detail. The treatment method of the present invention relates to immersion heat treatment.

The fibers are completely immersed in a treatment liquid consisting of a water bath drain or an aqueous dispersion containing 1 to 10 parts of the five hydrophilic compounds, and then heat-treated at 60 to 15L 1°C. At this time, a heavy initiator that is generally used to accelerate the polymerization reaction of hydrophilic compounds may be removed. This dipping treatment may be performed simultaneously with dyeing, or may be performed either before or after dyeing.

In the present invention, a dispersion of a hydrophilic compound in water refers to a state in which fine particles of a hydrophilic compound are dissolved or dispersed in water, and if necessary, a general organic solvent such as toluene, xylene, benzyl alcohol, chlorobenzene, etc. Common surfactants used as solvents, emulsifiers, and dispersants may be used.

Polymerization initiators used in the present invention include peroxides used as mutual polymerization initiators such as ammonium persulfate, potassium persulfate, hydrogen peroxide, and benzoyl peroxide, and these peroxides and iron (II). A redox initiator is used in combination with a disintegrating agent such as ionic sulfite, hydroxylamine, and hydrazine, and by selecting the type of polymerization initiator, the treatment can be carried out under the desired treatment conditions. It is possible.

The features of the present invention are that by immersing and heat-treating cationic dye-dyeable polyester fibers with a hydrophilic compound, there is no decrease in dyeability, dye fastness, especially wet fastness, and excellent water absorption and antistatic properties. It is possible to give it a certain color, and it is also possible to simultaneously process it to give it a maroon color.

Hereinafter, nine aspects of the present invention will be specifically explained with reference to Examples. Example 1 A mixture of 591% by weight of dimethyl terephthalate, 4.4% of dimethyl 5-sodium sulfoisophthalate, 36.5% by weight of ethylene glycol, and lithium carbonate as a diethylene glycol by-product inhibitor was prepared in the presence of a conventional catalyst. Date 238 g/m made of cationic dyeable polyester fiber obtained by transesterification
When dyeing the processed yarn fabric with a liquid jet dyeing machine after relaxing scouring and intermediate setting, 5% by weight of the following compounds and H310(CH20H20)-0-OH=OH25 Diacryl P, Blue G-PN (manufactured by Mitsubishi Kasei) 2.5% by weight Acetic acid 0.5ω/l, Sodium acetate 0.1 g/I! A treatment solution was prepared, and the dyeing process was carried out at 120°C for 45 minutes.

Next, as a comparative example, the following compounds were each adjusted to 5% by weight to a textured yarn fabric made of cationic dyeable polyester fibers similar to those in this example.

Simultaneous dyeing and processing were carried out in the same manner as in this example (Comparative Example-1 and Comparative Example-2).

Oh.

0→0H20H20−+−0−0=OH20 9 Also, regarding processed yarn fabric with a basis weight of 256 g/m2 made of ordinary polyethylene terephthalate fiber.

Dia
nixBlue BG-8K (manufactured by Mitsubishi Kasei, 2.5 liters), Ionesotto Rap-50 (manufactured by Sanyo Kasei) 0.5 oc/I!
, and acetic acid/-adjusted to 0.1 gel, and simultaneously dyed and processed at 130° C. for 45 minutes (Comparative Example 3). After washing with water and drying, finishing setting was performed at 180° C. in a conventional manner. Next, in order to check the washing resistance, a part of the treated η11 was added to 2 gels.
Neutral detergent (manufactured by Zabu Kao Soap) in a water bath solution at 40℃
Washing was repeated for 20 minutes. These treated fabrics were measured for adhesion, water absorption, antistatic properties, and color fastness, and the results are shown in Table 1. According to the treatment method of the present invention,
It is clear that good adhesion of hydrophilic compounds and excellent hydrophilic performance and color fastness are obtained.

The performance evaluation method is as shown below.

Arrival rate: Determined from the change in weight before and after treatment.

Water absorption: A water droplet of approximately 0.03 mJ was dropped on the treated cloth, and the time until it was completely absorbed was measured.

Antistatic property: Kyoto University Chemical Research Rotary Statistic (Frictional Electrification Voltage) □: 'Frictional electrification voltage (V) was measured in an atmosphere of 20°C and 60% RH using cotton cloth as a target cloth using Kuchistar. .

Washing fastness: Measured by JIS L-L1844 washing fastness measurement method. Determine the degree of contamination using gray scale.

If it's level 6 or above, it's considered good.

Wet friction fastness: Measured by JIS L-U849 wet friction fastness measurement method. Determine the degree of contamination using gray scale.

A grade of 6 or higher is considered good.

Example 2 Fabric weight 91 made of the same polyester fiber as Example 1
After g/m2 of spun fabric was set on gray fabric and desized and scoured, a liquid jet dyeing machine was used to dye the processed product.

Kayacryl Red GRL (Nippon Kayaku) 2
．． Dyeing was carried out at 120° C. in a conventional manner using a dye bath consisting of 7% by weight. Next, the dyed material was treated with the following compound in a solution adjusted to 5 weight ratio H30→CH2CH2O→-CH30, ammonium persulfate 0.2 gel, and Super Light C (manufactured by Mitsubishi Gas Chemical Co., Ltd., 10.6 gel). A reverse heat treatment was performed at 60° C. for 60 minutes.As a comparative example.

The following compound was added to the dyed product similar to this example with OH3 0-(C!H2OH2O←Publication H5 0 0H.

0-(OH20H20+CH3 each was adjusted to 5% by weight and each was treated alone in the same manner in the presence of the above redox initiator (Comparative Example-4, Comparative Example-5). g/m2 of spun fabric using a liquid jet dyeing machine.

Kayalon P, Red2BL-E3'F, (manufactured by Nippon Kayaku) 1 by a conventional method in a dye bath adjusted to 2.7% by weight.
Stained at 60°C.

Next, 9 samples were subjected to immersion heat treatment in the presence of a redox initiator in the same manner as in this example (Comparative Example 6). Wash with water.

After drying, finishing setting was carried out at 180° C. in a conventional manner, and the adhesion, water absorption, antistatic properties and color fastness were evaluated in the same manner as in Example 1. The results are shown in Table 1.9 According to the treatment method of the present invention, excellent layering properties of hydrophilic compounds, excellent hydrophilic performance, and color fastness can be obtained.

Example 6 Made of the same polyester fiber as Example 1, fabric weight 225
After relaxing scouring and intermediate setting of processed yarn fabric of g/m2, using a jet dyeing machine, Es
trol Red N-GL (Sumitomo Chemical fi) 2.5
Dyeing was carried out at 120°C in a dye bath adjusted to % by weight. Next, add 1% of the following compound (4 weights) to the brown colored material.

OH3 OoH.

11 0→0H20H20) -C-C=C%5 and the following compound 1 layer Oh.

0−+CH2CH2O→-CH60 and ammonium persulfate 0.5 g/l were immersed and heated at 80° C. for 45 minutes. 2 as a comparative example
For processed yarn fabrics made of ordinary polyester fibers with a basis weight of 159 g and 7 m, a liquid jet dyeing machine was used to process the resulting product.
S-2BL (Sumitomo Chemical Co., Ltd.) After dyeing in a dye bath adjusted to 2.6% by weight at i3[J°C] in a conventional manner, the sample was treated in the same manner as in this example (Comparative Example 7). After washing with water and drying, perform a complete finishing set at 180℃ using the usual method. Adhesion, water absorption, electrical conductivity, and dye fastness fk were evaluated in the same manner as 111, and the results are shown in Table 1. As can be seen from the above, it is clear that according to the treatment method of the present invention, good adhesion of hydrophilic compounds, excellent hydrophilic performance, and color fastness can be obtained.

Example 4 Made of the same polyester fiber as Example 1, fabric weight 257
g/m2 processed yarn fabric k IJ Lux scouring - After completing the intermediate set, use a liquid jet dyeing machine to dye the object.

The amount of the sample was adjusted to 5M, 0.2 g/l of Ammonium persimmon, and 0.6 g/l of Super Light C (Mitsubishi Gas Chemical Co., Ltd.), and immersed and heated at 65° C. for 60 minutes. Then,
For the processed products, Diacryl P, Recl
Dyeing was carried out at 120° C. using a conventional method using 2.4% by weight of GL-PF (manufactured by Mitsubishi Kasei). On the other hand, as a comparative example, 1 m with a basis weight of 238 g/m2 made of ordinary polyester fiber
A yarn woven fabric was also treated in the same manner as in this example (Comparative Example-8).

Then, for such treated product, Dianix Re
D 3BL-8F (manufactured by Mitsubishi Kasei) 2.4% by weight was used for dyeing in a conventional manner at 160°C. After washing with water and drying, finishing setting was carried out at 180° C. in a conventional manner, and the adhesion, water absorption, antistatic property and color fastness were evaluated in the same manner as in Example 1, and the results are shown in Table 1. It can be seen that according to the treatment method of the present invention, good adhesion of hydrophilic compounds, excellent hydrophilicity, and color fastness can be obtained.

Claims (1)

[Claims] A method in which a polyester fiber is immersed in a treatment solution consisting of a compound represented by the following general formula (1) or/and the following general formula (II) and heat-treated, wherein the polyester fiber is of a cationic dye dyeable type. A method for hydrophilizing polyester fibers, characterized by using polyester fibers. -... (In the formula, R4 to R8 are H or an alkyl group having 1 to 2 carbon atoms, R7 is 07?, Br, engineering, OCH,, 002H5°SOH, f: represents.x+ 7 + zr '' + 3''
+ ” is O or an integer from 1 to 60, x y + z and x + y +, Z is 5 to 0, and more than half of the alkylene ether groups are ethylene oxide. A is 10-1 selected Indicates that one type of group or no group exists (benzene nuclei are directly bonded to each other).