JPS59144677A - Anti-stain raw 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 stain-resistant spun-dyed fibers.

Specifically, the subject matter is a stain-resistant, source-dyed fiber comprising a polymer dyed in a chromatic solution, the surface of which is coated with a fluorine-containing compound.

Textile products coated with fluorine-containing compounds have properties such as water repellency, oil repellency, waterproofness, and dry fill resistance, and are therefore widely used in the fields of sports, interior design, and rain gear. Traditionally, this coating treatment was carried out after textile products were dyed, but recently the process has been simplified and
For the purpose of cost reduction, a method of attaching a fluorine-containing compound at the yarn manufacturing stage is attracting attention. However, the problem with the fibers obtained by this method is that because the fibers become water repellent, they become fragile when dyed, and it is difficult to dye them in particularly vivid chromatic colors.

The energy required for dyeing may be greater than that of ordinary fibers, and staining may occur.

The present invention attempts to solve this problem.

Since solution-colored yarns are superior in light fastness to piece-dyed yarns, they are in great demand mainly in the automobile industry (for example, seats), which require stain resistance and light resistance, and the value of the present invention is great.

The fiber of the present invention is polyethylene terephthalate-1.

Polybutylene terephthalate, etc., polyesters containing these as main components, nylon 6, nylon 46, nylon 66, nylon 61, polymethaphenylene isophthalamide, polyparaphenylene terephthalamide, etc., and patented amides and polyethylenes characterized by these. , polypropylene, etc. and polyolefins based on these, polymers based on polyacrylonitrile, polyvinyl alcohol (or its acetal), polyvinyl chloride, polyvinylidene chloride, rayon, acetate, and other synthetic fibers, recycled fibers, and semi-synthetic fibers. Among synthetic fibers, these are colored with undiluted chromatic colors.

Any known colorant can be used, but it depends on the type of polymer and the sharpness of the color tone.

Dispersibility in polymers, solvent resistance, migration resistance, heat resistance, weather resistance, chemical resistance, electrical properties, toxicity, etc. are selected with consideration.

In addition, one example of the polymer constituting the fiber of the present invention is as follows.

Polyethylene terephthalate or a polyester containing polyethylene terephthalate as a main component is particularly preferred because of its versatility and physical and chemical properties.

Next, in the present invention, the fluorine-containing compound refers to a compound commonly used as an antifouling agent, and the following are typical examples.

(al) Polymers obtained by homopolymerizing or copolymerizing fluorine-containing monomers represented by the following general formulas (1) to (3), or polymers obtained by copolymerizing these monomers with other fluorine-containing monomers. .

I CH2= CC00Rf fil
RI R3 Ch = CC00Rt NOa SRf
(21RI R3 Cl1cu CC0OR* N0CRf
(31 (Here, R1 is a hydrogen atom or a methyl group, R2 is an alkylene group having 1 to 10 carbon atoms, a cycloalkylene group, an aralkylene group, or an aralkylene group, and R3 is a hydrogen atom or a methyl group having 1 to 10 carbon atoms. Alkylene group 1 Cycloalkyl group, aryl group or aralkyl group, Rf 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, R1° Part or all of the hydrogen atoms on the carbon atoms of R3 may be substituted with fluorine or chlorine atoms.)
tb+f A fluorine-containing urethane compound represented by the general formula (4).

Rf 0CON+(-R4-N)ICOORf
(41 ('R4 represents an alkylene group having 2 to 20 carbon atoms, a cycloalkylene group, an arylene group, or an aralkylene group, and Rf represents the group described above.) (C1 Repeating unit represented by the following general formula (5) A fluorine-containing polyester having

Rf 10OC-R4-COO-R5-(51 (Rs is a trivalent hydrocarbon group having 2 to 10 carbon atoms).

R4 and Rf represent the groups described above. ) The fiber of the present invention is characterized in that its surface is coated with a film of a chemical compound, and after being discharged from the spinning hole,
Film formation is performed at an arbitrary step before weaving. In this case, known methods can be applied, but it is particularly preferable to apply an appropriate amount of a liquid containing the nitrogen compound to the undrawn fiber yarn, and then draw the yarn and heat the fluorine-containing compound. This method performs fixation treatment simultaneously or separately (thermal fixation treatment may be performed after knitting and weaving).In addition to the effect of obtaining fibers coated with a high content of nitrogen compounds directly from undrawn fiber threads, it also has the effect of forming a film and Another advantage is that it has excellent adhesion to fibers.

The fluorine content of the fluorine compound film formed on the fiber is 15% by weight or more, preferably 20% by weight.
The amount of film is often 0.0 or more with respect to the fiber.
It is preferable that the amount is 5% by weight or more.

The fibers of the present invention can be used not only for antifouling purposes, but also for use in so-called breathable, moisture-permeable, and waterproof fabrics (in this case, it is preferable to use fine-grained yarns).

2. Although the main purpose of the present invention is to provide stain-resistant fibers that do not require dyeing, it may be possible to provide stain-resistant fibers in the form of blends, blends, or knits with other uncolored fibers. Of course, the words may be dyed. It goes without saying that the fibers may also contain an H fuel agent, an antistatic agent, and the like.

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

Example 2 - 70% by weight of barfluoroctyl ethyl acrylate, 25% by weight of vinyl chloride, 3% by weight of 2-chloroethyl vinyl ether, 2-hydroxyethyl acrylate 2
Aqueous emulsion of copolymer consisting of % by weight (concentration 30% by weight)
), 1-2 parts by weight of oleyl stearate, 2 parts by weight of polyethylene oxide (molecular weight 1'ooO), 0.1 parts by weight of potassium salt of monolauryl phosphate, and 90 parts by weight of water.

This dispersion was used when melt spinning polyethylene terephthalate in which 0.5% by weight of Prussian blue was dispersed.

20% by weight of the yarn was attached to the trilobal cross-section yarn running down from the spinneret, and the yarn was wound at a speed of 800 m/min.

Next, this undrawn yarn was stretched at a stretching temperature of 90°C and a stretching ratio of 3.
．． Stretched 5 times at a stretching speed of 1,500 m/min, then heat-treated with an air jet at 270°C to 1300 d/6.
A yarn with a diameter of 8 f, a strength of 4.1 g/d, and an elongation of 38% was obtained.

The yarns were twisted with 2 briers and tufted with 1 tuft in a conventional manner to form a leher loop carpet with a basis weight of 800 g/mf. After washing and drying the obtained blue carpet, water repellency and oil repellency were examined, and the following results were obtained.

(111a Water 4a: 1 drop of a mixture of isobrobyl alcohol and water at a volume ratio of 20/80 (approximately 0.3 ml)
) was placed on the carpet, but the liquid did not penetrate even after 5 minutes.

(2) Oil repellency: When measured by the AATC-TM118 method, the oil repellency showed grade 6.

Patent applicant: Unikorikiki Co., Ltd.

Claims (2)

[Claims] (1) An antifouling, source-dyed fiber characterized by being a fiber made of a chromatic solution-colored polymer, the surface of which is coated with a fluorine-containing compound. (2) The fiber according to claim 1, wherein the polymer is polyethylene terephthalate or a polyester containing polyethylene terephthalate as a main component.