JPS6197473A - Antistaining 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 (Industrial Application Field) The present invention relates to an antifouling synthetic fiber having good gloss and excellent processability.

(Prior technology) As a method of imparting stain-proofing properties such as water repellency, oil repellency, liquid stain resistance, and dry stain resistance to textile products, especially sportswear, raincoats, carpets, etc., the surface thereof is treated with fluorine-based stain resistance. A method of treatment with a chemical agent is generally adopted. Conventional methods are used to process it.

This method mainly involves post-processing the product, which has the disadvantage of complicating the process, reducing operability, and increasing costs. For this reason, in recent years, methods have been proposed for fixing fluorine compounds to fiber threads immediately after fiber formation, and some of these methods have already reached the stage of practical application.

However, this type of antifouling fiber is generally a glossy fiber that does not contain a matting agent such as titanium dioxide, and has the problem of high frictional resistance and poor processability. That is, troubles are likely to occur when it comes into contact with pins, rollers, guides, etc. during the yarn manufacturing process or processing process.

(Problem that the invention attempts to solve) This is the subject.

(Means for Solving the Problems) The present invention solves the above problems, and its gist is that the present invention is made of a polymer containing silica particles with an average particle diameter of 0.1 to 3μ, and the surface thereof is fluorine-based antifouling. A stain-resistant synthetic fiber characterized by being coated with a film containing an agent.

In the present invention, the polymer forming the fibers is polyethylene terephthalate ~1-. Polybutylene terephthalate, etc., and polyesters containing these as main components.

In addition to melt-spinning polymers such as nylon 6, nylon 66, polyamides containing these as main components, polyethylene, polypropylene, etc., and polyolefins containing these as main components, wet spinning.

It is a fiber-forming polymer that can be dry-spun or emulsion-spun.

Next, in the present invention, the fluorine-based protective film that coats the fiber surface is
Typical IT3 drugs include the following.

(a) A polymer obtained by homopolymerizing or copolymerizing fluorine-containing monomers represented by the following general formulas (1) to (3), or a polymer obtained by copolymerizing these monomers and other monomers not containing fluorine atoms.

CI+2=CC00Rf (11
R+ R3 co2= CCOOR2NSO□I? f (2)
RI R3 "ClI2 = CCOOR2NC0Rf (3
) (Here, R1 is a hydrogen atom or a methyl group, and R2 is an alkylene group having 1 to 10 carbon atoms, a cycloalkylene group, an arylene group, or an aralkylene group.

R3 is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms,
Cycloalkyl group, aryl group or aralkyl group, R
f represents a fluoroalkyl group having 7 to 30 carbon atoms in which some or all of the hydrogen atoms on the carbon atoms are substituted with fluorine atoms. Also.

Some or all of the hydrogen atoms on the carbon atoms of R2 and R3 may be substituted with fluorine or chlorine atoms. ) (bl A fluorine-containing urethane compound represented by the following general formula (4).

Rf 0OCNII-R4-N11COOI? f
f41 (R and l are divalent organic groups having 2 to 20 carbon atoms.

-O-, -SO□-2~coo-, -co-.

It may also contain a bond such as -N(R3)-.

R, and Rf represent the groups described above. ) (C) A fluorine-containing polyester having a repeating unit represented by the following general formula (5).

Rf 00CRa Coo Rs (51(R
5 is a trivalent hydrocarbon group having 2 to 10 carbon atoms.

R, and Rf represent the groups described above. ) In the present invention, the silica particles contained in the polymer forming the fibers must have an average particle diameter of 0.1 to 3 μm, and preferably 0.2 to 2 μm. When the average particle diameter is less than 0.18, the effect of improving slippage is poor, and when it exceeds 13μ, the physical properties of the fiber and the spinning properties are deteriorated. The blending amount of silica particles is 0.0 with respect to the polymer.
2 to 2% by weight, especially 0.05 to 1.5% by weight are preferred.

The fiber of the present invention can be manufactured by applying a known method. In other words, silica particles (
This method involves blending a fiber-forming polymer (which may also be silica sol) into a fiber-forming polymer, and treating it with a fluorine-based antifouling agent liquid at an arbitrary step after it is discharged from a spinning hole to form a film. Particularly preferred is a method in which an appropriate amount of a liquid containing a fluorine-based antifouling agent is attached to an undrawn fiber yarn, and then drawing of the transferred yarn and heat fixing treatment of the fluorine-based antifouling agent are carried out simultaneously or separately (heat treatment). (The fixing treatment may be carried out after knitting and weaving.) In addition to the effect that antifouling fibers can be obtained directly in the fiber forming process, there is also the advantage that the adhesion between the fluorinated antifouling agent film and the fibers is excellent.

In addition, it is also possible to use an antifouling agent and a wetting agent (preferably a fluorine-containing agent) together to improve the dyeability of the fibers, which can improve the dyeability without impairing the antifouling performance. It is preferable.

The amount of the fluorine antifouling agent should be 0.05 to 0.5% by weight, especially 0.1 to 0.3% by weight based on the fiber, without impairing the effect of the silicate particles. 44L of dirtiness
This is preferable because it allows you to

The fibers of the present invention can be used not only for antifouling purposes, but also for so-called breathable and moisture-permeable waterproof fabrics. (In this case, it is preferable to use a yarn with a small single filament fineness.) It goes without saying that it is also possible to introduce a fuel, an antistatic agent, a softening agent, etc. into the interior or surface of the fiber. It is preferable to introduce a fluorine compound into the inside of the fibers as this improves the adhesion between the fibers and the antifouling film.

(Example) Hereinafter, the present invention will be explained in more detail with reference to Examples, and 18 water-based and 18 oil-based were evaluated by the following method.

(]) jQ Aqueous: One drop (approximately 0.3 ml) of isopropyl alcohol/water mixture with a volume ratio of 30/70 was gently placed on the test cloth -1-, and the case where it did not soak in after 5 minutes was considered good. .

(2) Oil repellency: Based on AATC ('Nie T Gate 118 method).

Examples and Comparative Examples 85 parts by weight of ε-caprolactam, 15 parts by weight of water and
The silica particles shown in the table were charged into an autoclave equipped with a stirrer, and the temperature was maintained at 250°C.
) Polycondensation was carried out under the conditions of 2 hours in a pressure relief vessel and 2 hours in a normal pressure period in 96% sulfuric acid.

Nylon 6 chips with an intrinsic viscosity of about 1.2 measured at 25°C were obtained.

The nylon 6 chips were fed to an Ex-I-Rougu type melt spinning machine and spun at 270°C. that time.

For the yarn of 36 filaments running down from the spinneret, 70% by weight of 2-perfluorooctylethyl acrylate, 25% by weight of vinyl chloride, 1% of 2-chloroethyl vinyl ether 31Tif, 1.2% of 2-hydroxyethyl acrylate. 4 parts by weight of a copolymer consisting of
) 3) 7% by weight of a solution prepared by dispersing 1 part by weight of C1° in 95 parts by weight of a mineral oil-based oil solution was applied to the fibers to form a 400%
The film was taken up at 0 m/min, stretched to 1.1 times with a heated roller at 90°C, and then wound up.

The number of fluffs of the obtained drawn yarn was measured using a fluff detector manufactured by Kasuga Electric Co., Ltd.

Further, the drawn yarn was woven into taffeta at a density of 110 warps/2.54 cm and weft 100 threads/2.54 cm, and dyed at 98° C. for 1 hour in a dye bath containing an acid dye. 1 of the obtained cloth
After drying at 05°C for 1 hour, water repellency and T8 oiliness were measured. The measurement results are shown in Table 1.

Note that all of the above dyed fabrics had good gloss.

Table 1 (Effects of the Invention) As described above, according to the present invention, a stain-resistant synthetic fiber having good gloss and excellent process passability is provided.

Claims (3)

[Claims] (1) An antifouling synthetic fiber made of a polymer containing silica particles with an average particle diameter of 0.1 to 3 μm, the surface of which is coated with a film containing a fluorine antifouling agent. (2) The antifouling synthetic fiber according to claim 1, wherein the content of silica particles is 0.02 to 2% by weight of the polymer. (3) The antifouling synthetic fiber according to claim 1, wherein the amount of the fluorine antifouling agent is 0.05 to 0.5% by weight of the fiber.