JPS62104967A - Antistaining 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 (Field of Industrial Application) The present invention relates to stain-resistant fibers that have excellent water repellency, tθ oil resistance, and dry fill resistance, and are wash resistant.

(Prior art) As a method of imparting antifouling properties such as 18 water and oil repellency to textile products, especially sportswear, car vent diaper covers, etc., a method generally employed is to treat the surface with a fluorine-based antifouling agent. has been done. Conventionally, the treatment method has mainly been to post-process the product, which has the drawbacks of complicating the process, reducing operability, increasing costs, and lacking in durability of antifouling performance.

In addition, methods have been proposed, such as introducing a fluorine compound into a fiber-forming polymer in the form of a blend or copolymerization and spinning it, or fixing a fluorine compound to the fiber yarn immediately after fiber formation, and some of these methods have already been put into practical use. stage (for example, Japanese Patent Application Laid-open No. 5
No. 5-90677, No. 58-13723, No. 59-9
4621 etc.).

However, fibers coated with conventional fluorine compounds cannot be used on items such as carpets that cannot be rinsed thoroughly after washing, or items that cannot be heat treated such as ironing after washing, such as carpet diaper covers. There was a problem that the antifouling performance deteriorated. Even if the amount of the fluorine compound applied is increased in order to improve the washing resistance of the stain-proofing performance, the washing resistance is only slightly improved, and there is a problem in that the operability becomes worse.

(Problems to be Solved by the Invention) The present invention aims to provide an antifouling fiber having wash resistance, excellent water repellency, IR oil resistance, and dry soil resistance.

(Means for Solving the Problems) The present invention solves the above problems, and its gist is that the fluorine content is 40% by weight or more and the average molecular weight is 100% by weight or more.
The stain-resistant fiber is coated with an aliphatic fluorine-containing ester compound having a fluoroalkyl group of 0 to 3000.

The aliphatic fluorine-containing ester compound in the present invention has a fluorine content of 40% by weight or more and an average molecular weight of 1,000 to 1,000.
It needs to be 3000. Fu-no element content is 4
If it is less than 0%, it will not exhibit sufficient antifouling performance with sufficient washing resistance, and if the molecular weight is less than 1000, it will easily fall off when washed (if the molecular weight exceeds 3000, it will not exhibit sufficient antifouling performance. .

Examples of such aliphatic fluorine-containing ester compounds include esters of polyhydric carboxylic acids and perfluoroalkyl alcohols, and esters of perfluoroalkyl carboxylic acids and polyhydric alcohols.

A specific example of polyhydric carboxylic acid is malonic acid.

Succinic acid, glutaric acid, adipic acid, pimelic acid.

Speric acid, azelaic acid, sebacic acid, citric acid, acrylic acid oligomer 1 methacrylic acid oligomer, maleic acid, fumaric acid, and the like.

Examples of perfluoroalkyl alcohols include alcohols having a fluoroalkyl group having 6 to 20 carbon atoms in which some or all of the hydrogen atoms on the carbon atoms are substituted with fluorine atoms (including sulfonamide bonds, ether bonds, etc.). may be included).

Examples of perfluoroalkylcarboxylic acids include carboxylic acids having a fluoroalkyl group having 6 to 20 carbon atoms in which some or all of the hydrogen atoms on the carbon atoms are substituted with fluorine atoms (sulfonamide bond, ether bond). (It may also include.)

A specific example of polyhydric alcohol is glycerin.

Examples include pentaerythritol and vinyl alcohol oligomers.

The fibers used in the present invention include 5 polyethylene terephthalate, polybutylene terephthalate, poly-p-ethylene oxybenzoate, polyesters based on these, nylon 6, nylon 12. Nylon 46. Nylon 66, nylon 610 and polyamides based on these, polyethylene, polypropylene and polyolefins based on these, polymers based on polyacrylonitrile, polyvinyl chloride, polyvinylidene chloride, and fibers made of polymers based on these. Can be mentioned.

The fibers of the present invention are preferably produced by a spin finishing method. That is, it is a method in which a liquid containing an aliphatic fluorine-containing ester compound is applied to undrawn fibers extruded from a spinneret, and the stretching of the fibers and the fixing treatment of the aliphatic fluorine-containing ester compound are performed simultaneously or separately. According to this method.

This has the advantage that the process is simplified and the adhesion between the aliphatic fluorine-containing ester compound film and the fibers is improved.

A liquid containing an aliphatic fluorine-containing ester compound is a liquid containing this compound in bulk form or in the form of an emulsion, suspension, solution, etc. 9. Dispersant.

Antistatic agent 9 A heat resistant agent, softener, etc. are added as necessary. Particularly preferred is one in which an aliphatic fluorine-containing ester compound is blended with a common spinning oil, and adding this during spinning simplifies the process.

The stretching of the fibers and the fixing treatment of the aliphatic fluorine-containing ester compound are as follows: 1) Applying appropriate heat during stretching.

(2) applying heat before stretching and then stretching; (2) applying heat after stretching.

The amount of the coating of the aliphatic fluorine-containing ester compound formed on the fiber is 0.05% by weight or more of the fiber, preferably 0.0% by weight of the fiber.
A suitable content is 9 to 0.3% by weight.

It is preferable that the cross-sectional shape of the fibers is uneven because the aliphatic fluorine-containing ester compound-containing liquid will easily adhere thereto.゛In addition, in order to prevent recontamination during washing, polyalkylene oxide components are introduced into the polymer forming the fibers in the form of a blend or copolymer, and aliphatic fluorine-containing ester compounds are introduced in a network (three-dimensional) It is also preferable to use a polymer-forming polyalkylene oxide compound.

Furthermore, in order to prevent a decrease in the dyeability of fibers due to the formation of an aliphatic fluorine-containing ester compound film, it is also preferable to introduce a surfactant (wetting agent), particularly a fluorine-containing surfactant, into the film.

(Example) Next, the present invention will be explained in more detail with reference to Examples, and the antifouling performance was evaluated by the following method. ("Parts" indicate parts by weight.) (11fa aqueous: One drop (approximately 0.3 ml) of an isopropyl alcohol/water mixture having the composition shown in Table 1 was gently placed on nine locations on the test cloth. The composition of the mixed solution in which no droplets of 5 or more force permeated into the test cloth after 3 minutes was defined as IB water content (less than 1 is 0).

(2178 Oiliness: AATCC Standard Test Method 118-19
Based on 75. The oil repellency was determined based on the penetration resistance of each reagent (oil) in Table 2 (less than 1 is O).

Table 1 Table 2 (3) Dry fill resistance: Dry soil with the composition shown in Table 3 and a test piece of 10CIIXIO (J) with twice the weight of the dry soil were placed in a polyethylene container and mixed and shaken vigorously for 3 minutes. After washing, the test piece was taken out and vacuumed, and the brightness was measured and expressed as the difference in brightness before and after contamination.

Table 3 (4) Washing resistance: 100 CJI! The sample was 3m7 of washing liquid containing 30g7N of a commercially available foaming detergent for carpets (Rinrei)! 1. Immediately use a nylon brush to brush back and forth 10 times in each direction, vacuum suction, and then apply a commercially available car vent rinse agent (Rinray).
Spray 5 mj' of rinse solution containing 0g/l, brush back and forth 10 times each in the weft and weft directions with a nylon brush, vacuum suction, and dry naturally day and night.
3) test was conducted.

Examples 1 to 5 and Comparative Examples 1 to 5 20 parts of a 20% aqueous dispersion of the aliphatic fluorine-containing ester compound shown in Table 4 was dispersed in 80 parts of an aqueous spinning oil solution with a concentration of 13% containing an ester oil as the main component. I let it happen.

A melt-spun nylon 6 thread was coated with 6% of this dispersion and wound up at a speed of 700 m/min. Next, the first stage of stretching was carried out at a temperature of 90° C. and a magnification of 1.11 hours and 0.1 seconds. Further, a second stage of stretching was performed at a temperature of 180°C, a magnification of 2.8°, and a time of 0.2 seconds.
A drawn yarn of 60 f was obtained. (No trouble occurred when using v!4 yarn.) 8 After making this drawn yarn into a horse fabric, acid dye was used.

Dyeing was carried out at 100° C. for 30 minutes to obtain a dyed cloth of a light gray color. After drying this dyed cloth, it was heat treated at 135°C for 5 minutes,
Antifouling performance was measured.

Comparative Example 6 A 1000 d/60 f nylon 6 drawn thread was used as an activator manufactured by Ki Yushi Seiyaku Co., Ltd., and Actinol R-100 was added as 2 g/7
! Scouring with the containing scouring solution at 60℃ for 30 minutes,
After washing with water twice and drying, 6% of the aliphatic fluorine-containing technical ester compound-containing solution of Example 1 was applied to 04, then 180
It was heat-treated at ℃ for 0.2 seconds, and the antifouling performance was measured in the same manner as in Example 1.

Table 5 shows the results for each side.

Table 4 (Table 4) Table 5 (Repeat of Table 5) ■ □■ In Table 5, WS-0 to 5G Keisaki Oka ■ San 0 to 5 times are shown, and WR...P7) Qbi OR ... 按 11戊DS indicates dry fill resistance (I'm).

(Effect of the invention) According to the invention, an excellent IB water base with wash resistance.

1. An antifouling fiber having oil resistance and dry fill resistance is provided.

Claims (1)

[Claims] (1) An antifouling fiber characterized by being coated with an aliphatic fluorine-containing ester compound having a fluoroalkyl group and having a fluorine content of 40% by weight or more and an average molecular weight of 1000 to 3000.