JPS5915576A - Anti-stain fiber and production thereof - 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 an antifouling fiber that has antifouling properties and improved antirecontamination properties, and a method for producing the same.

Conventionally, it has been known that coating the fiber surface with a fluorine-containing compound is an effective means of imparting stain resistance to textile products. It has been pointed out that this is not sufficient to prevent

The present inventors previously discovered that by surface treating fibers containing polyalkylene oxide compounds with a fluorine-containing compound, stain-resistant fibers with improved re-stain prevention properties could be obtained. As a result, even by coating the fiber surface with a film consisting of a fluorine-containing compound and a polyalkylene oxide segment-containing network polymer, a permanent recontamination prevention effect is exhibited, and a method for obtaining such fibers. The present invention has been achieved based on the discovery that the so-called spin finish method is extremely effective.

In other words, the first aspect of the present invention is a stain-resistant fiber whose surface is coated with a film made of a fluorine-containing compound and a network polymer having polyalkylene oxide segments, and the second aspect is a fluorine-containing compound and a polyester fiber. A method for making stain-resistant fibers, which is characterized in that after a network polymer-forming compound having an alkylene oxide segment is attached to undrawn fibers, drawing of the fibers and fixing treatment of the compound are performed simultaneously or separately. The gist is the base system.

The reason why the fiber of the present invention exhibits a re-fouling prevention effect is that the antifouling effect of the fluorine-containing compound is remarkable in the air (when used), and the hydrophilic polyalkylene oxide chain is active in the washing water. It is thought that it helps the cleaning fluid work better.

Since the fibers of the present invention have a polyalkylene oxide component incorporated into the network structure, there is little deterioration in performance due to shedding during dyeing, washing, and use, and the antistatic effect of the component can be expected in some cases.

In the present invention, the term fluorine-containing compound refers to a fluorine-containing compound that is usually used as an antifouling agent for textile products, and preferably a polymer made from a polymerizable compound represented by the following general formula.

I CH2= CC00Rf (1
)CH2= CC00R2NSO2Rff21■尤II
Also 3 CH2 = CC00I also 2NCOI 7f
(3) CH2= CC00CHCH200CR4
f41CI+2 = cnooctzt
(5) CrI2 = CHCI(
200CRf (6) CH2=
CHOIyaf (7)C
rI2 = C11CIL20)kf(8)CrI2
= CHCOIN, f
f91Ct12=C, +1. Cll2CO
Rf 11O) (where the rib is hydrogen or a methyl group, R2 is an alkylene group, cycloalkylene group, arylene group, or aralkylene group having 1 to 10 carbon atoms, R3 is hydrogen or a hydrocarbon group having 1 to 10 carbon atoms, R4 is a hydrocarbon group having 1 to 17 carbon atoms,
Rf represents a fluoroalkyl group having 5 to 30 carbon atoms in which part or all of the main atoms on the carbon atoms are 111-substituted with fluorine atoms. Furthermore, some or all of the hydrogen atoms on the carbon atoms of R2-R4 may be substituted with fluorine atoms or chlorine atoms. ) In addition, these polymers are copolymerized with the addition of other polymerizable hairs to balance the flexibility, durability, water repellency, oil repellency, etc. of the film formed on the fibers. Good too.

Next, the network polymer having a polyalkylene oxide segment in the present invention is a network polymer (three-dimensional structure) having a polyalkylene oxide segment such as polyethylene oxide, polypropylene oxide, or ethylene oxide-propylene oxide copolymer as one of its components.
means polymer.

A specific example of such polymer formation is a compound having an epoxy group at one end or both ends.

For example, a compound obtained by reacting a hydroxyl-terminated polyalkylene oxide with epichlorohydrin to have a glycidyl ether group and a curing agent 9 such as diethylenetriamine, triethylenetetramine, diethylaminoprobylamine, aminoethylpiperazine, and metaphenylenediamine.

Amines such as methylene dianiline and diaminodiphenylsulfone, phthalic anhydride, hexahydrophthalic anhydride, tetrahydrophthalic anhydride, tetrahydrophthalic anhydride, pyromellitic anhydride, dodecylco-phosphoric anhydride,
Reaction with acid anhydrides such as methylnadic anhydride, ■
Polyalkylene oxides having amine groups at the ends, such as bis(amino-n-propyl)polyethylene oxide, and compounds having multiple epoxy groups in one molecule (the aforementioned polyalkylene oxides having epoxy groups at both ends, epichlorohydrin, and bisphenol) epoxy resin obtained by condensation with The type and amount ratio of these compounds depend on their reactivity.

It is determined as appropriate depending on the conditions for adhering to the fibers.

Further, in order to balance the durability, flexibility, abrasion resistance, etc. of the film, it may be modified with other components.

In order to fully realize the effects of the present invention, ■
The fluorine-containing compound has a fluorine content of 15% by weight or more,
Preferably, it is 20% by weight or more, and (i) the molecular weight per polyalkylene oxide segment is 500 to 1.
(2) The amount of the film on the fiber is 0.05 weight % or more of the fluorine-containing compound, and 0.01 weight % or more of the polyalkylene oxide segment, preferably 0.02 weight % or more. That is desirable.

The fibers of the present invention are made of nylon 6, nylon 66, polyethylene terephthalate, polybutylene terephthalate, polyethylene, polypropylene, polyacrylonitrile, polyvinylidene chloride, etc., and polymers with good fiber-forming property containing these as main components are melt-spun or dry-spun. A fluorine-containing compound and a polyalkylene oxide segment-containing network polymer-forming compound are added to undrawn fibers (including partially drawn semi-drawn fibers) obtained by spinning by a method such as wet spinning. After adhering a liquid containing the compound in the form of an emulsion, a suspension, a solution, etc., preferably a liquid used as a spinning oil (to form a network polymer with a fluorine-containing compound). It is not necessarily necessary to attach the chemical compound at the same time.

Of course, they may be attached separately. ).

It can be obtained by simultaneously or separately performing the stretching of the fiber and the fixing treatment (including three-dimensional treatment) of the compound. That is, the chemical-containing liquid of peracid is applied to the undrawn fiber yarn, and then ('Appropriate heat is applied when drawing the D fiber Kf6.■ Heat is applied before drawing the fiber to form a film. The following methods are applied: After drawing the fiber ##:, heat is applied to form a film.With these methods, surface treatment is applied to the imitation fiber product. In addition to the effect of simplifying the process compared to so-called post-processing methods.

Before fiber formation is completed, that is, when the fiber molecules are loose, fluorine-containing compounds and polyalkylene oxide segment-containing network polymer-forming compounds are attached, and some of these compounds form on the fiber surface layer. Another advantage is that the film has excellent adhesion, probably because it is transparent to γψ.

Hereinafter, the present invention will be explained in more detail with reference to practical examples, and the recontamination property was measured by the following method.

Sample cloth (10 x
10cm), 40C 39/, add soap solution (250mg of liquid), 2.5g of dirt mixer and 20 copper balls.

The round-o-meter was operated for 10 minutes, then washed with water (running water) for 15 minutes and then dried, and the reflectance at 432 parts m of the contaminated sample cloth obtained was measured using a spectrophotometer.

(Note) Dry cleaning stains 9 parts Artificial oil stains (15 parts stearic acid, 15 parts oleic acid, 15 parts hydrogenated oil, 15 parts olive oil, 10 parts cetyl alcohol).

Cholesterol 5t, solid paraffin 25% mixture) and vacuum cleaner Mix the dirt in a ratio of 1:2:3. Something.

Example III-11 (95 tons of 2H-211-heptadecafluorodecyl acrylate, 5 parts of N-methylolacrylamide, 0.5 parts of persulfate, 50 parts of acetone, and 150 parts of water)'jB was polymerized. 40 parts of fluorine-containing polymer liquid, average molecular weight 2
000 polyethylene oxide bis(glycidyl ether) 7 parts 9 both ends are amine groups Average molecular weight 10
A treatment solution was obtained by mixing and stirring 3 parts of polyethylene oxide of QO and 150 parts of a spinning oil solution (a solution containing 15% of a polyethylene glycol surfactant).

This treatment solution was applied to a 245d/24f undrawn nylon 6 yarn running down from the gold at a rate of 1.1, and the yarn was wound up at a speed of 1000 m/'' under the conditions of a coating amount of 6% by weight. Next, the film was stretched at a stretching temperature of 120° C., a stretching ratio of 35 times, and a stretching time of 1 second, and was further heat treated at 150° C. for 3 seconds.

3M la hrc drawn yarn (70d/24f) warp 1
After weaving in a tack at a weave density of 10 pieces/2.54 m and a weft of 1 ()0 pieces and 72.54 parts M, it was scoured. The degree of recontamination of this cloth was 2.1%.

Elemental analysis and surface infrared analysis of the fabric confirmed the presence of fluorine and polyethylene oxide.

Comparative Example The same procedure as in Example 1 was carried out except that bis(glycidyl ether) of polyethylene oxide was not used. The restaining degree of the obtained cloth was 4.3%, indicating that the restaining property It was big. Although fluorine was confirmed to be attached to the scouring cloth, polyethylene oxide was not observed.

Patent applicant: Unitika Co., Ltd.

Claims (2)

[Claims] (1) Antifouling fiber whose surface is coated with a film made of a fluorine-containing compound and a network polymer having polyalkylene oxide segments. (2) After attaching a fluorine-containing compound and a network polymer-forming compound having a polyalkylene oxide segment to an undrawn fiber, drawing the fiber and fixing the compound may be carried out simultaneously or separately. Features a manufacturing method for stain-resistant fibers.