JPS58214549A - Synthetic fiber multifilament fabric excellent in functional durability - 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 synthetic fiber multifilament having excellent durability and functionality.

Anti-static to obtain fabrics with conventional functionality.

Sweat absorption, antifouling, strong water, moisture absorption, gamma water, oil repellency, anti pill.

Forty-one manual processing techniques such as anti-snag, flame retardant, melt retardant, antibacterial, etc. have been developed, but these all use processing agents to prevent the surface of the crushed fibers from adhering to the surface, so they cannot be washed easily. The processing agent fell off and there was a limit to its durability. For this reason, there is a strong desire for the emergence of synthetic yarns with permanent post-processing effects, but conventional treatment of only the fiber surface can only provide temporary processing effects; Even if the application period of the processing agent is increased for the purpose of improving the processing agent, the effect of improving processing durability is not only small, but also has the disadvantage of causing a serious problem of increasing texture changes such as texture hardening.

As a method to compensate for these shortcomings, for example,
As described in Japanese Patent No. 42199, a curved portion is created by modifying the cross section of the fiber, and this curved opening portion K11l! A method of improving the durability of laundry capes by applying a retardant has been considered.

In this case, it is possible to improve durability without damaging the hand by modifying the cross section of the fiber and attaching a mechanical longevity agent to the recesses, but this has become an essential characteristic of recent synthetic fibers. It is not possible to maintain a high level of washing durability (performance that can withstand 30 to 50 washes) that can meet the demand for washable washers.
[4] Although the part directly exposed to the surface is reduced and the durability is improved accordingly, it is not possible to prevent the functionality-imparting agent from falling off, so Washing durability could not be obtained.

As a result of various studies aimed at providing a synthetic fiber multifilament fabric that does not undergo any change in texture due to functional agent treatment and has a highly permanent treatment effect, the inventors of the present invention have developed a synthetic fiber multifilament fabric that does not change in texture due to functional agent treatment and has a highly permanent treatment effect. The desired effect was achieved by giving the surface a unique irregular shape and applying a unique intertwining and interlocking structure.

That is, the present invention has a substantially U-shape and a substantially V-shape.

Or, in a fabric made of a synthetic multifilament composed of single M fibers having a substantially C-shaped cross-sectional shape, the multifilament is subjected to an interlacing treatment and has at least 10% of the total number of single ruts. Excellent functional durability, characterized in that the single fibers have a fitted structure in which they are fitted into the recesses of the cross-sectional shape, and a functional agent is attached to the recesses of the cross-sectional shape. It is a synthetic f1 fiber multifilament fabric.

Examples of the synthetic fiber multifilament used in the present invention include polyamide, polyester, polystyrene, and polyethylene woven fabric. Among these, polyester fibers are particularly preferred.

Polyamide fibers include 6 nylon, 66 nylon,
Examples include aromatic polyamide fibers. Examples of polyester fibers include aromatic dicarboxylic acids such as terephthalic acid, isophthalic acid, and naphthalene-2°6-dicarboxylic acid.

From polyesters synthesized from aliphatic dicarboxylic acids such as adipic acid and sebacic acid or their esters and diol compounds such as ethylene glycol, diethylene glycol, 1,4-butanediol, neopentyl glycol, and cyclohexane 1,4-dimetatool. The following fibers are used. In addition, polyoxyalkylene glycol, glycerin, pentaerythritol, methoxypolyalkylene glycol, glycerin, and pentaerythritol are added to the above polyester.

Copolymers of methoxypolyalkylene glycol, bisphenols, sodium sulfoisophthalate, etc., as well as matting agents and heat stabilizers.

Also included are those containing pigments, alkali fluoride salts of alkylbenzenesulfonic acids, and alkali metal salts of sodium alkylsulfonates.

The thickness of the single fibers constituting these synthetic *a multifilaments can be appropriately selected depending on the purpose, but for clothing use, a thickness of 1 to 30 de, preferably 1 to 10 de is suitable.

The synthetic fiber multifilament used in the present invention is composed of single fibers having a substantially U-shaped, substantially V-shaped, or substantially C-shaped cross section, and in the cross section f of the multifilament, the single fibers have a U-shape, a 7-shape, Alternatively, it is necessary that at least one end of the C-shape fits into a U-shape, 7-shape, or C-shape recess of another single fiber.

Fibers having such a cross-sectional shape can be easily obtained by spinning using a spinning novel as shown in FIG. 1, for example. Figure 2 shows the cross-sectional shape of fibers obtained by spinning using the spinning nozzle L7 shown in Figure 1. The nozzle and the shape of the fiber cross section 1 correspond to each other.

- one end of the U-shape, 7-shape or C-shape of the fiber is fitted into the end of the U-shape, 7-shape or C-shape of another single fiber;
There are various methods for forming the fitting structure Z). For example, it is possible to impart a certain degree of interlocking structure to the undrawn yarn by spinning it using 10K gold yarn with a nozzle arrangement in which the U-shaped openings face each other in the center. .

However, the fitting structure is easily broken due to tension during winding and unwinding, and sufficient effects are not achieved.

In the present invention, in order to form a yarn that has sufficient mating structure and does not damage the mating structure, Kazuhito performs an entangling process using fluid #VC under low tension such as overfeeding after drawing. give

This interlacing process results in a U-shaped single fiber.

One end of the V-shape or C-shape fits into the four parts of the U-shape, 7-shape, or C-shape of another single 1m fiber to form a strong fitting structure, and the multifilament has an intertwined part. This makes the fitted structure strong and will not be destroyed by friction with guides or the like during machining, tension application, etc.

It is essential to highly improve the durability of the functional agent that it occupies at least 10 cm of the total number, and
It is desirable that Vr is 20% or more.

However, even if the yarn has been subjected to fluid entanglement treatment, if the tension applied in the weaving and weaving process, fine wire relaxing, and setting process is large, the degree of entanglement decreases, and the fitting structure is also likely to break. Usually, it is preferable that the degree of entanglement (measured by a diffusion method) is 10 or more, particularly 20 or more.

Although it is best to use a two-hole nozzle as the fluid treatment nozzle to obtain the fitted structure of the present invention, the desired effect can also be achieved by pressurized air treatment with a single-hole type nozzle or entangling treatment without overfeeding. can be obtained.

Here, the ratio of single fibers having an interlocking structure to the total number of single fibers is determined by calculating the ratio of interlocking single fibers #I## at arbitrary locations in the length direction of the synthetic fiber multifilament, and then calculating the average value. It was a hailstorm.

Table 1 shows models of the mating structure of fibers with various irregular cross-sectional shapes and the durability effects of functional agents.

In the present invention, the multifilament (4
) (B): Either a sufficient fitting structure can be formed and the functionality imparting agent has good durability, or (C) a fitting structure is not formed. Durability cannot be achieved.

Table 1 These synthetic fiber multifilaments with special cross-sectional shapes and interlocking and entangling structures can also be made into fabrics after being made into processed yarns such as false twisted yarns, air jet processed yarns, spunlike processed yarns, etc. can.

The structure of the fabric of the present invention is not particularly limited, and may be a known woven or knitted fabric, or may be a non-woven fabric.

Furthermore, in the present invention, a functional strength agent is attached to the recessed portion having a substantially U-shaped or substantially C-shaped cross-sectional shape.

Here, examples of the agent for imparting functionality to fibers include the following.

・Antistatic agent: Polyethylene terephthalate copolymerized with polyoxyethylene glycol.

Polyoxyethylene dimethacrylate.

・Processing agent with water absorption and hygroscopic properties: Nrikageru.

Polyvinyl alcohol, starch, CMC, acrylic acid, methacrylic acid, sodium salt of acrylic acid or methacrylic acid, polynibrene gellicol.

Processing agents with water-repellent and oil-repellent properties: Organic fluorine compounds, organic silicon compounds Examples: CH7, C0N (C'H, -CZ) Processing agents with flame retardant and melt-proof properties: River・Phosphorus-containing compounds or halogen-containing compounds such as ・Processing agents with antibacterial properties ・Quaternary ammonium compounds, organometallic compounds such as monoethylene glycol of acrylic acid and methacrylic acid,
Trimethylammonium chloride, dimer r-benzylammonium chloride of acrylic acid and methacrylic acid CH,=CHC0C2)14Sn (CH3)
3C) IP=CHc00c2T'T4 Sn - (CJ
(g)3 As mentioned above, these functional imparting agents are applied to synthetic fibers in general, but their effects are especially remarkable when applied to polyester fibers.

Any method can be used at any stage to attach these functional agents to the recesses in the cross section of single fibers, but usually fibers are added to the solution or dispersion of the functional agent. f-immersion [7] A method is adopted in which a oligopotent agent is introduced into the four parts and the solvent and water are removed. The form of the fibers on which the performance-improving agent is applied may be either multifilament or fabric.

In this way, the synthetic #fiber multifilament fabric of the present invention has a functional agent attached to four parts of the cross-sectional shape of the single fibers, and the fabric has a U-shaped cross-section or Since at least one end of the C-shape has a fitting structure in which the other monofilament is fitted into the recess Vc, the functional strength agent coated with (-1) is fitted into the recess in the fourth part. As a result, the fiber ends are protected by the single #M fiber ends, and the interlaced parts make the mating structure even stronger, preventing the functional agent from falling off, and improving wash/4!i durability. Therefore, in such a synthetic fiber multifilament fabric, since the functional agent is adhered to and protected on the inner wall surface of the recess, it is not affected by the wind caused by processing. There is little change in chemical composition, and washing durability is dramatically improved.

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

In addition, the methods for measuring the sticking property (water absorption rate), half-life (antistatic property), water repellency, oil repellency, flame retardancy, and III durability in the persimmon example are as follows.

・Water absorption rate (Lightskin knob property): 15 cm according to JISL1079-66
Attach a 30cm x 30cm test piece so that it does not sag. Next, add distilled water and adjust so that 26 to 27 water droplets per 1 ml of billet are dripped, and then heat the test piece so that the surface of the test piece is 2Cr3 from the 5th edge of the billet, and the water droplets are dripped onto the test piece. When this happens, run a stopwatch and measure the time when the water droplets on the test piece stop exhibiting any particular reaction. If it takes more than 180 seconds, the test will be canceled1.
80 seconds or more.

Two test pieces of 5 cm in length and 45 cr in width, conditioned at 20°C x 50% 1.1 (20° C. ooov voltage turntable 173
Rotate with Or, p, m.

1f after 20 seconds], the voltage of QOOV is cut off and t: i is 1
Read the time when it decays to 7. Measurement was done at 20℃ x 5
The test was carried out in a constant temperature and humidity room with 0% RH.

- Conforms to water sprinkling property JISL-1079-66, 2 oct.
Attach the n x 20-sized test piece to a frame with a diameter of 15.2 crn to avoid wrinkles by aligning the center of the spray with the center of the frame, pouring 250 ml of room temperature water into the funnel, and pouring this into the test chamber. Sprinkle on top.

Next, after removing excess water droplets, the wet state is measured by comparing and contrasting it with a judgment standard piece.

・Oil repellent AATCC Te5t Method 118-1975
The implementation was determined.

・Flame retardant A test piece of approximately 350 mm x 250 mm was prepared based on the JISL-1091-71 microburner method,
Set it in a designated combustion box, adjust the flame length to 45 degrees, and heat it for 1 minute to measure the afterflame time (the time the test piece continues to burn after the end of heating: gec) and the carbonized area (the carbonized area). Measure area: cA).

・Durability The product was washed in a home washing machine in a 40°C washing solution containing 1y7t of neutral detergent, and its durability (washing resistance) was evaluated. If the clothes are washed for 100 minutes continuously, it is f14G, and if the clothes are washed continuously for 300 minutes, it is 10.

The present invention will be specifically illustrated below using Examples. In addition,
In the examples of rejection, ``chi'' means heavy meta.

Example 1. Comparative example 1. 2 Intrinsic viscosity measured in 0-chlorophenol at 25°C 0.
Polyethylene terephthalate No. 65 was spun using a square spinning nozzle at a spinning temperature of 295° C. and at a discharge rate such that the denier after stretching was 2 denier. This spun yarn is passed between a supply roller at 85°C and a drawing roller at 180°C for 300ty+
2. While stretching 3.0 times at a stretching speed of /min and applying a 5-inch overfeed roller between the stretching roller and the winding device. OK
:i/cr! After 50
A filament yarn of de/24 fit was obtained. profit f
In addition, the cross-section of the hollyester fibers shows a beam-like shape, and of the total number of single fibers, the proportion of single fibers exhibiting an interlocking structure is 33%.
Met. For comparison, a round-section filament yarn was obtained under the above-mentioned drawing conditions using a normal round-section nozzle (Comparative Example 1)
). Furthermore, for comparison, a filament yarn (comparative example 2) was obtained, which was obtained in Example 1 without being subjected to the interlacing treatment using compressed air (the proportion of the interlocking structure was 8%).

Next, each filament yarn was woven into a plain weave taffeta with a warp density of 43 threads/α and a weft density of 37 threads/cnr, and then kneaded and preset was performed by a conventional method. The fabric thus obtained was dyed; Sumikalon Navy Flue S-2GL6% (o
wf) Before dispersion 11; Disper TL (manufactured by Keiho Kagaku Co., Ltd.) 12/
1 1) II 11M1 preparation; acetic acid o, 2?
After dyeing with a bath ratio of 1:30 in a dye solution consisting of (:H) at a dye temperature of 30°C and a dyeing time of 60 minutes, reduction washing was carried out according to a conventional method. After the heat treatment reaction, the pad was immersed in the following pad solution containing 1i'i%i moisture absorbent and squeezed uniformly with a mangle (pickup amount: 32%).

Immediately put this into a steamer in a moist state for 100 minutes.
Treated with saturated steam for 5 minutes. After the heat treatment, hot water washing was performed to remove unreacted processing agents.

The results are shown in Table 2.

As is clear from Table 1, Example 1 is a fabric that is made of single fibers with a substantially U-shaped cross section and is treated with a functional agent using a tightening fiber in which the interlocking structure accounts for 20% or more. Comparative example 1 of a cane processed into a round cross-section textile fabric. Compared to Comparative Example 2, which uses a single fiber mf with a U-shaped cross section but is processed into a fabric using #a with less than 20% of the mating structure, the durability in terms of electric shock and sweat absorption is extremely high. It turns out to be an excellent stone.

Examples 2-4. Comparative Example 3 71 of Example 1. From the J-type spinning nozzle, the L-type spinning nozzle (Example 3), and the Z%-type spinning nozzle (Example 4), the spinning, drawing, and entangling treatments were performed under the same conditions as θy++ 1.
'r, 9j type filament yarn (50de/24rIt
) (Examples 2 to 4) and VC for comparison.
A round cross-section yarn (sode/24
rtz) (Comparative Example 3), the density was 43 lines/On
+ Woven in plain weave taffeta with weft density 37 wood/crn +j! t
Next, 8" i! kneading and presetting were carried out using the ``continuous method".

Hydrophilic copolymerized poly J, STE/L- (2% emulsion product) consisting of 350 parts of ethylene glycol, 4% OWF dye; Sumikaron Navy Blue 8-2OL, 6% OWF, dispersant; Disper VC, 1 t/L. The bath ratio for the treatment bath was 1:30. Processing bath temperature 130℃
, dyeing and water treatment were carried out at the same time under the condition that the treatment time was 60 minutes, and then according to the n method,...! Fully washed? A finishing set F was applied at a finishing temperature of 160° C. and a finishing time of 1 minute. The results are shown in Table 3. As is clear from Table 3, the product of the present invention, which was processed on a fiber fabric with a concave cross-section shape, a matching groove, and LI8, was compared to the comparative product R, which was processed into a round-section fabric (which had excellent durability). It can be seen that the fabric has good anti-static and sweat-absorbing properties.

Examples 5-7. Comparative example 4 In Example 1, the degree of confounding by Taku's processing.

Multifilaments with different total ratios were woven into a plain weave with a warp density of 40 threads/m and a weft density of 37 threads/m, and then F*l? by a conventional method. I! I did a no-reset. After dyeing and reducing the fabric thus obtained and washing it in a conventional manner,
After padding with a solution of 8% water or water/methanol solvent and 0.2% water fermentation with a potassium sulfate catalyst, allyl compounds that can be combined and have various functionalities (Pickup No. 47)
%), immediately heat treated (5 minutes in saturated steam at 100℃)
I gave you ¥. From table 4, i) Kirakana yo 1 The effect is noticeable when the total percentage of rejection fibers is 10% or more, and the effect is noticeable when the total percentage of kirakana ni is -20 chi or more.

Table 4 Example 8 In Example 1, a water repellent and an oil repellent were used in addition to an antistatic moisture absorbent as a functional agent, and the conditions were the same as in Example 1. A filament fabric was obtained.

Water and oil repellent; C Tamemozhi-C00CI-(9IC7FI5) Durability fl' value: 3J3I shown in Table 5, showing extremely good durability.

Table 5 Example 9 In Example 1, the following flame retardant was used instead of the antistatic hygroscopic agent as the functional agent, and the other conditions were the same as in Example 1. Synthetic Multiphysic 4-Durability Evaluation Results As shown in Table 6, the durability was extremely good7 Table 6

[Brief explanation of drawings]

Figure 1 (a) (b) (e) (d) shows the actual # of the present invention.
This is an example of a nozzle used in 4, and Fig. 2 (a) (b)
(c) (d) is Fig. 1 ta+ (b) (e) (d
) is a cross section of g1 silk in the present invention spun from a nozzle of 411 [:,]. Patent applicant Teijin Ltd. 1 Figure (a) (b) (C) (d) I2 l (a) (b) (C) ((i)

Claims (1)

[Claims] 1. A fabric made of synthetic fiber multifilament made of single fibers having a substantially U-shaped, substantially V-shaped, or substantially C-shaped cross-sectional shape, wherein the multifilament is subjected to an interlacing treatment. and at least 10 of the total number of filaments
% single fibers have a structure in which they fit tightly into each other in the recesses of the cross-sectional shape, and a functional imparting agent is attached to four parts of the cross-sectional shape. Synthetic fiber multifilament fabric with excellent properties. 2. Synthetic wire pyramid multifilament is polyester Mi
The method according to claim 1, wherein the method is a fiber.