JPS59163480A - Modification of synthetic 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 modifying synthetic fibers such as polyester fibers or acrylic yarns and fibers.

Conventionally, these synthetic fibers and their fiber structures have been treated with a treatment solution containing a vinyl-based hydrophilic modifier consisting of acrylic acid, acrylamide, polynalkylene glycol diacrylate, or derivatives thereof. Polymerize a vinyl modifier such as Kurare on top and make fiber! It is well known that it imparts water absorbency, antistatic properties, and antifouling properties to #.

These conventional treatment methods include the normal drying method, the steaming method, and the dipping method, but the pap ink method has not been able to produce a strong finish on the fibers. In addition, in order to activate the radicalizing agent in an aqueous solution such as immersion for 11", the coagulation rate on the fiber surface is applied
The modifier starts to polymerize in the aqueous layer, producing a large amount of homopolymer in the liquid, which tends to significantly reduce the adhesion rate to the fiber surface Uii. However, it is difficult to achieve permanent electrophoresis, water absorption, and stain resistance with excellent washing durability.

Recently, a polyalkylene glycol diacrylate has been proposed in which its affinity for hydrophobic fibers is improved by introducing aromatic groups into the skeleton [4I4']
JP-A No. 52-+50592] 1゜ By using a modifier, the above-mentioned! +￥1 k*: : Although fE can be resolved to a certain degree, it is difficult to obtain a sufficiently durable treatment effect for polyester fibers and acrylic fibers, and furthermore, the modifier may be removed during the treatment process or washing. It has been hardly put into practical use because of the unforeseen drawbacks of coloring, impairing the clarity of the white charcoal and hue of the treated material, and significantly lowering product quality.

On the other hand, fiber processing using epoxy compounds is also widely known, and the processing of natural fibers and synthetic fibers using epoxy compounds is widely known.
1, +9, A Island, +967) r Fiber processing using epoxy compounds (1). However, in the second and third reports that were published subsequently, they mainly reported on the reaction between cellulose and epoxy compounds, and there were also eight reports on the reaction between wool and epoxy compounds.

Regarding synthetic fibers, it has been reported that nylon containing amino groups reacts with epoxy compounds. However, even here, there is no mention of treating polyester and acrylic fibers with an epoxy compound to impart electrophoretic properties, water absorption properties, and stain resistance to the 61-string.

The present inventors have completed the present invention as a result of intensive research to improve the drawbacks of conventional synthetic strings.

The purpose of this invention is to improve durability, conductivity, and
Polyester with equal water absorption and stain resistance /l/ @
2) Provides synthetic fibers such as #IF skin ζmef're 1-nor type fibers. The other eye, C6J, has one-sided antistatic property,
Is it a synthetic fiber that has water-repellent and stain-repellent properties?
I will provide a new way to do it (・ζ).

Kiori j method (・", polyester 1m + J: iu and/or acrylic "f#, fiber general formula (1) (in the formula Rh-CH2CH2 (]-) wax rut1-1
It's an integer of 5. ] A compound of the epoxy compound represented by the formula (2) and/or the epoxy compound represented by the formula (2) 7 [(2 The present invention provides a method for modifying synthetic fibers, which comprises applying a Tatsu L-forming solution, drying, and then heat-treating.

The polyester fiber used in the present invention is a combination of an aromatic dicarboxylic acid and an alkylene glycol having 2 to 10 carbon atoms, and is usually polyethylene terephthalate.

Of course, a small amount of aliphatic dicarboxylic acid or the like may be copolymerized with this material.Acrylic fibers usually contain 85% by weight or more of acrylonitrile, and methyl acrylate, methyl methacrylate, or A copolymer of allylsulfonic acid or the like may also be used.

It shall include appropriate shapes such as these single fibers, filaments, stay 7° fibers, threads, knitted fabrics, non-woven fabrics, etc.

The epoxy compound applied to the present Fjlj has the general formula (1
), and Rke-CH2CH2O-
, and n digits 1 to 15 are fl+” i L < digits 2 to 8
And Z. Here, when n is less than 1, jZh solubility in water is 1.
Not only does the affinity for water decrease, but also as a mixed compound with general formulas +2) and +6), the affinity for water i: i: 41
．． <Na/! In addition, it is impossible to drain water, conductivity, and stain resistance sufficiently.

Also, when n exceeds 1S Sakai beef, the difference is p, t (π♂ for C,
Due to the decrease in compatibility, ('A: The durability of the moromi is low, so it must be ranked J.

The epoxy compound represented by the general formula 12) used in combination with the above compound is highly aqueous, exhibits hydrophobic properties against synthetic fibers, and exhibits strong adhesion to synthetic fibers. By applying a mixture of compounds i and 17 in the general formula (1) to the compound *m and heat-treating it, a durable product with excellent water absorption, antistatic properties, and antifouling properties can be obtained. A certain performance 1 can be given.

When applying a mixed compound of the epoxy compound represented by the general formula (3) and the compound represented by the general formula (1) to synthetic fibers,
The compound of general formula (2) is hydrophobic and synthetic?
It is an excellent compound as a durable fixing agent because it has a hydrophobic affinity for 9 fibers, and a mixed compound with a highly hydrophilic compound shown in general formula (1) is applied to the synthetic fiber. By heat treatment, the antistatic coating exhibits excellent properties such as durability, water absorption, and antifouling properties.

The combined ratio of the epoxy compound 10M in the present reaction 1 is preferably in the range of +5:85 to 85:15 based on the general formula N) + f2) and (+) +13+ +-. However, 1)
In the formula, when n is 8 or more +s:as to 75:25.7 or less, 75:25 to 85:15 is clever. When the general formula (1) is +5:85 or more F, the hydrophilicity of the compound represented by the formula (2) and the formula K (3) is low, resulting in a low F water absorption, which is not preferable. Also, when general formula (1) exceeds 85:15, (1
) formula becomes more hydrophilic, which improves performance, but repeated washing causes the epoxy compound to fall off, reducing the durability of performance, which is not favorable.

The ratio of the epoxy compound to the fiber eζ is usually 1% by weight or more, preferably 2 to 107% by weight, and more preferably 1 to 8% by weight.

Applicable to unexploded +y1 f acidic catalysts, salts are similar to DJI, and borofluoride metal salts are particularly good, such as borosulfur 1) zinc chloride,
Examples include magnesium borofluoride.

Nonionic active agents applicable to the present invention include polyogine alkylene glycol-alkyl ether, polyoxyalkylene glycol-alkyl phenyl ether, and oxyalkylene glycol-alkyl ester, and these The HLB is in the range of 10 to 20, and the suitable HLB for use is 11 to 16.
The length is preferably between 12 and 5. These H
The LH value may be prepared by using a single compound or a mixture of two or more compounds of low HLB and high HLB.

The emulsifier used for emulsifying the epoxy compound in the present invention has a molecular weight of 10 to 800 to 8
0 weight.

The concentration of the epoxy compound in the aqueous solution containing the epoxy compound is usually 1 to 12% by weight, preferably &″i2
~10% by weight. The concentration of the acidic catalyst in the emulsified aqueous solution is usually 0.3 to 5% by weight, and the concentration of the acidic catalyst in the emulsified aqueous solution is generally 0.5 to 3% by weight. Despite the fact that the gamma raw aqueous solution used in the misfire 91 method contains a Vi catalyst, it has excellent stability and is easy to handle for industrial production.The emulsified aqueous solution is usually applied to synthetic fibers at room temperature. Let's do it. The application method is not particularly limited, but may include 5, lrad method,
Spraying method (spray method, coating method, etc.) may be used.

The synthetic fiber to which the epoxy compound has been applied is then subjected to heat treatment after drying. In this case, heat treatment may be performed immediately after applying the epoxy compound, and drying and heat treatment may be performed using an IFil culm. Drying can be done by air drying, but it is usually 50 to 12
Heat treatment is usually done at 0℃ for 1 to 60 minutes at 80℃ using dry heat.
℃ or above, preferably dry heat 100-220℃ 1-20
Let's go for a minute.

After the heat treatment, the synthetic fibers are washed with warm water or water and washed for 40 minutes.
Perform ventilation drying at °C. The synthetic fiber obtained by the method of the present invention usually contains 1 to 1 epoxy compound based on the weight of the fiber.
0% by weight, and 2-8% by weight for the convenient mechanism. The synthetic fiber obtained by the present invention has excellent electrostatic properties, water absorption properties, and stain resistance, and also has excellent durability that can withstand repeated washing. It is of high quality, with no coloration or deterioration in texture as in conventional methods.

The present invention will be explained in detail below with reference to Examples.

The methods for evaluating durability, electrophoresis, water absorption, and antifouling properties, as exemplified in the examples, and washing methods for antifouling properties for evaluation of durability are as follows.

0 electrified voltage (v) Using a Kyoto University Chemical Research-type rotary scooter (manufactured by fJQ Asia Shokai), the No.
lul+ was determined at 40±2% RH.

0 half-life (eec) Using a Sukchinoku Honestometer (manufactured by Shishi PK +), apply the voltage at 2o soil 2°C 14o±296R
Measured under H conditions.

0 Water absorbency Can/+011□No.

0 Washing fastness: It was carried out using the J Engineering 5L-0814 method.

Washing method: Wash in a household washing machine (fully automatic washing machine
P-578 model (manufactured by Hitachi, Ltd.) was used for fIC rinsing. One cycle consisted of washing at 40°C for 10 minutes, rinsing at room temperature x 3 minutes x 2 times, and applying water, and this was repeated 5 times.

In addition, in this specification, the adhesion rate (%) refers to the amount of modifier applied (total modifier in the bath in the dipping method, in the spray method) - treatment liquid strength x in the noding method. When Δ is the reduction ratio] and B is the amount of the modifier applied to the object to be treated, the term is expressed as B/Δ×100.

0 Rubbing fastness JIS L-0849 ([Model] 0 Stain-proofing The stains from lipstick, machine oil, and mayonnaise are removed by the above washing method, and the stain removal status after one wash is O (good removability). The epoxy compounds used in each example are as follows.

A, CH7CHC1120C (2CH20CH2(shiHCH2Ij, UH2U1(C112[J[;+
1. CH20)2C120H(Jl.

. , eight 10\ cu2c! + 0H20(CH□CH2O)(C412
C)] CH2Ha HaF, CH2CHCH20(CH2Ci, (20), 5
CH2CHCt (2 Example 1 Polyester woven m (7,5d156f, taffeta) was immersed in an emulsified dispersion solution with the composition shown below at room temperature, squeezed to obtain a squeezing rate of 100%, and dried at 100°C for 5 minutes. ,
Next, 5 molecules of IR + dry heat treatment were carried out at + 50'C, followed by cleaning with hot water at 40°C for 1 minute, and drying with a hot air dryer at 40°C, 2[1"C11109h RH) (
Ti M V tr 22A time release 1 wake up product 41
The evaluation of 1 was narrowed down to 11 (shown in Table 1. In Table 2, experiment (Immerse it in a 7% dispersion solution with the composition shown in ζ in a constant vortex, and press it to obtain a VC ratio of 10%.
Dry for 5 minutes at
Wash with warm water at °C for 1 minute, rinse with water for 1 minute, dehydrate, dry in a hot water dryer at 40"C, and dry at a constant temperature of 20 °C and 1% (RH) at 24 hours. Physical properties after 1 convex and 1 release. tro:f
The result of : is shown in the table.

EXAMPLE An acrylic fiber knitted fabric (Aqualon, manufactured by Kanebo@) was immersed in an emulsified dispersion solution having the composition shown in Section F at room temperature, and then treated in the same manner as in Example 1.

Emulsified dispersion solution Add water to make the total emulsified solution 100 parts by weight.

The results are shown in Table 4.

4th reference: Table center line - 17 is added] - Fabric Example 4 Polyester fabric (Ten, basis weight + DB'?/?7Z
') was immersed in an emulsified dispersion solution (with the composition shown in F) at room temperature, dried at 100 °C for 6 minutes after squeezing, and then subjected to dry heat treatment at 160 °C for 2 minutes. 40 left
It was washed with warm water at 40°C for 0 minutes and dried in a hot air dryer at 40°C.

This processed cloth was immersed in a dyeing solution having the composition shown in F (・), heated to +50"C in 45 minutes,
Stained for 0 minutes.

1 of the composition of the dyed cloth using the dyestuff dye solution as shown in F. It was subjected to reduction cleaning in a former fIG cleaning bath and dried in a hot air dryer at 7.40°C. Next, at the same time as the unprocessed fabric (unprocessed fabric) that was subjected to dye reduction fk cleaning without any processing, in a constant temperature room at 20"C, lIn%RH (after 1r1" of 7C2A hours, the material condition 51 R value was tl
Table 6 shows 1.

P original cleaning bath No. 5 Table □ 6 Example 5 Polyester cotton 4 ml (calze, basis weight 2 o 8 ri / door pu F
Show me 1 silk rimata dye 1') Floating ft soaked in the night ttlt l
The temperature was raised to 160°C in a trench with 45 multilayers, and the color was multiplied by 100°C.

Dyeing L) Sweat fθ The dyed fabric was reduced and washed using the usual method (40°C warm air ratio 84%). 7IO° after dry heat treatment
Wash with warm water at 40°C for 60 minutes and dry in a hot air dryer at 40'C. A cloth that had been dyed and reduced-washed without any processing (unprocessed cloth) was added and left in a constant temperature room at 2[1°C and 40% RH for 24 hours, after which the physical properties were evaluated.The results are shown in Table 6. Indicated.

Tsu-L dispersion liquid No. 612 483-

Claims (1)

[Scope of Claims] (1) Polyester fibers and acrylic fibers having the general formula CH2CH-CH,0 (RJn CH2-CHCH2-
-・(1) (in the formula R -CH2CH20-, n
(d + ~+577) is an integer. An epoxy compound represented by and general formula (2) and/or 1-
j i6) Synthesis characterized by applying an emulsion of a mixture with an epoxy compound represented by Huff CH3 and an acidic catalyst to water using a surfactant, drying, and then heat-treating. (2) Acid separator [U-0 according to claim 1, in which the catalyst is a borofluoride metal salt. (6) A method in which the surfactant is a nonionic surfactant. A method according to claim 1. (4) A method according to claim 1, in which drying and heat treatment are performed in the same step. (5) A method according to claim 1, in which dry heat treatment is performed at 80 to 220°C. The method described in Scope 1.