JPH0261120A - Conjugate combined filament yarn for heat insulating textile product - 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 utilizes far infrared radiation emitted by ceramics [Prior art and problems to be solved by the invention] Conventionally, ceramics such as alumina and zirconia emitted It is known to emit It is also known that when the human body is irradiated with far-infrared rays, it stimulates cell molecules near the subcutaneous layer, has a warming effect due to internal heat generation, improves blood circulation, and promotes health, and is also said to have antibacterial properties. There is.

Many products are used to take advantage of the characteristics of ceramics, and Japanese Patent Application Laid-open No. 12908/1983 discloses an example of ceramics incorporated inside fibers as a textile product.
JP-A-63-92720, JP-A-63-1269
There is a publication No. 71. In JP-A No. 61-12908, adsorption and exhaustion are performed after forming fibers. A method of dispersing the yarn in a spinning dope is also disclosed, but such a yarn suffers from severe wear and tear on the machine due to the ceramic particles present on the surface, making it impractical.

In the prior art example of JP-A No. 63-92720, in order to prevent wear and tear on the machine mentioned above, the fibers are made into a sheath/core structure and a ceramic-containing polymer is placed in the core. Although it is possible to prevent wear and tear, the emitted far infrared rays are absorbed by the sheath, and the effect is not fully exerted. In order to bring out the full effect, the ceramic content must be increased considerably or the sheath thickness must be made extremely thin, which in turn poses extreme difficulties in terms of silk-spinning technology.

Furthermore, JP-A No. 63-126971 discloses a technique in which a part of the coating layer is removed using an alkaline solution to expose the ceramic-containing layer to the surface, but the alkali treatment is expensive and difficult to control dissolution. Furthermore, the most fatal problem is that the far-infrared radiation effect is lost due to the elution of the ceramic by alkali.

The object of the present invention is to solve the above-mentioned problems and provide a composite yarn for textile products that has a sufficient far-infrared radiation effect and has high heat retention properties.

[Means for Solving the Problems] The above-mentioned object of the present invention is to add 10 to 50% by weight of Cerami Tsuku.
A composite mixed yarn composed of at least one composite filament consisting of a polymer component (A) containing a ceramic component and a polymer component (B) not containing a ceramic, and at least one filament consisting of a polymer component not containing a ceramic. Therefore, a part of the component (A) of the composite filament is always exposed on the surface of the cross section of the composite filament, and furthermore, the component (B) forms a convex part on the cross section of the composite filament, and the component (B) forms a convex part in the cross section of the composite filament. This is achieved by using a composite mixed fiber yarn for heat-retaining textile products, which is characterized in that the component (A) does not protrude beyond the straight line obtained by kneading the matching convex portions.

In the present invention, the multifilament must be a mixture of composite filaments containing ceramic and filaments not containing ceramic. If only a composite filament containing ceramic is used, the strength decreases due to the ceramic content, resulting in unexpected deterioration of workability. The preferred mixing ratio of filaments that do not contain ceramic is 10% to 50%. In addition, the ceramic contained in component (A) in the composite filament is 10 to 50% by weight.
, preferably 20-35% by weight. If it is less than 20%, the far-infrared radiation effect will be insufficient, and if it exceeds 40%, it will likely lead to operational troubles such as yarn breakage during spinning. Ceramic is alumina (A1
! 0. ) series, magnesia (MgO) series, zirconia (Z
rOz) system etc. can be used.

In the composite filament, if the component (A) containing ceramic is not exposed on the surface, the radiated energy will be blocked and the sufficient effect will not be exhibited.

A preferred degree of exposure of component (A) is 40% or more of the total circumference of the composite filament. In addition, component (CB), which does not contain ceramic, forms a convex portion in the cross section of the composite filament, and component (A) must not protrude beyond a straight line connecting adjacent convex portions. This is because if it protrudes, the machine will be subject to significant wear and tear during the process from spinning to product production.

The ceramic content of the composite filament as a whole is preferably 10% by weight or more; if it is less than that, the far-infrared radiation effect will be insufficient when used as a textile product.

The polymers constituting component (A) and component (B) may be the same or different, and are preferred from the standpoint of versatility as polyester, polyamide, or polyolefin. You can choose whether to do so or not depending on your purpose.

The composite blend yarn of the present invention can be obtained by a well-known spinning method, such as a composite blend spinning method from a spinneret or a drawing and twist blending method,
Normal heat treatment and finishing processing can be performed.

FIG. 1 shows a cross-sectional view of an example of a composite mixed fiber yarn according to the present invention. As shown in FIG. 1, the composite mixed fiber yarn 1 of the present invention has a
Consisting of six filaments, 24 filaments 2 whose inner cross sections are shaded are ceramic-containing composite filaments, and the other 12 filaments 3 are ceramic-free filaments. Composite mixed yarn 1
When manufacturing, it is preferable to arrange the ceramic-containing composite filament 2 on the outside of the mixed yarn 1. FIGS. 2 and 3 show cross sections of ceramic-containing composite filaments. In the ceramic-containing composite filament 2a shown in FIG. 2, convex portions 5a made of a polymer component (B) that does not contain ceramics are arranged at four locations around the outer periphery of a central portion 4a that has a circular cross section and is made of a polymer component (A) that contains ceramics. , and the center portion 4a is circumscribed by the circumference vA of the adjacent convex portions 5a.
It is inside 6a. The ceramic-containing composite filament 2b shown in FIG. 3 has a deformed triangular cross section, the apex (convex part) 5b of the triangle is formed of a polymer component (B) that does not contain ceramic, and the central part of each side of the triangle 4b
As shown in the figure, a ceramic-containing polymer component (A
) is exposed.

In this case as well, the portion 4b is located inside the circumscribed tangent line 6b of the adjacent convex portion 5b.

4 and 5 show conventionally known composite filaments 7a and 7b having a sheath-core structure.
In the case of the composite filament 7b, the portion 4 made of the ceramic-containing polymer component (A) is arranged in the center, and in the case of the composite filament 7b, it is arranged on the outside.

The composite mixed fiber yarn for heat-retaining textile products according to the present invention has composite filaments containing ceramics having far-infrared radiation properties exposed among the plurality of filaments constituting it. When textile products made using this technology are worn or used indoors, they absorb light energy and heat from the human body at a higher level and then radiate it again as far-infrared rays, warming the human body from the lower part of the skin.

In addition, it can promote the VIi ring in the blood and exert a health-promoting effect. In addition, the composite mixed fiber yarn according to the present invention is constructed so that the ceramic-containing portion does not protrude from the outer circumferential surface of the yarn, so that the ceramic-containing portion is not exposed to rollers, plates, traveler 1 knitting needles, etc. during the processing and manufacturing process of the composite mixed fiber yarn. Since there is no direct contact with the contacting members, it can be processed under the same conditions as ordinary yarn without damaging various processing machines.

The composite mixed fiber yarn for heat-retaining textile products of the present invention having such characteristics can be usefully used in various textile products such as not only clothing but also carpets, car seats, interior materials, footwear linings, and the like.

[Example] The composite mixed fiber yarn according to the present invention will be specifically explained using Examples below.

As a polymer for component A, two types of polymers were obtained in which 10% and 30% of alumina ceramic having a particle size of 0.6 μm or less were blended with polyester having ηsp/c = 0.70, respectively.

Polyester with ηsp/c = 0.72 was used as the B component polymer, and the polymer ratio was A component/B component - 3/1.
, compound spinning at a spinning block temperature of 295°C and a spinning speed of 125
An undrawn yarn of 210 d/24 f was wound at 0 m/min, and then normal drawing and twisting was carried out at a drawing ratio of 3.0 and a speed of 800 m/min to form a ceramic-containing composite having a cross section as shown in Fig. 2. Multifilament 7 consisting of filaments
Two types of 0 d / 24 f were obtained, A-10 (10% alumina ceramic blended in the A component) and A-30 (30% alumina ceramic blended in the A component). During this period, there was no wear and tear on the spreading twister traveler.

Soil Comparison ■ Soil The polyester blended with 30% alumina ceramic from Example 1 was used as the A component, and the same B component polymer as in Example 1 was used, the A component was used for the sheath, the B component was used for the core, and the sheath/core ratio =
3/1 and under the same conditions and operations as Example 1, a multifilament 70 d / 24 f made of a ceramic-containing composite filament having a cross section as shown in FIG. 4 was prepared.
I got it.

Using the same polymer as in Comparative Example 1, reversing the sheath-core structure, and under the same conditions and operations as in Example 1, a multifilament 70d/composed of a ceramic-containing composite filament having a cross section as shown in FIG. 5 was produced. I got 24f. In this case, the twisting machine traveler was severely worn out.

Using only the component B polymer (not containing ceramic) of Example 1, ordinary drawn polyester yarns 70d/24f were obtained.

The two types of composite yarns of Example 1 and the yarns of Comparative Examples 1 to 3 were
After mixing with 0d/12f polyester and interlacing at a rate of 20 threads/m, half tricot with the same texture is knitted with the same yarn on the front and back, and then subjected to the usual finishing process. Each sports jersey is made to the same standard. At this time, the knitting needles of the yarn of Comparative Example 2 were severely worn out, so the test was discontinued for this yarn only. A panel of 20 people were asked to wear all types of tailored sports jerseys and give them a score of 12 on warmth.

The results were as shown in the table below.

■ Extremely high heat retention.

○ Has heat retention properties.

△ There is almost no heat retention.

× No heat retention.

1. Chips containing 25% by weight of zircon carbide in nylon 6 polymer with relative viscosity of sulfuric acid of 2.5, and 50% of nylon 6 chips with relative viscosity of sulfuric acid of 2.6 containing no zircon carbide.
% and composite spinning was carried out at a spinning block temperature of 270° C. to obtain a drawn yarn of 70 d/24 f consisting of ceramic-containing composite filaments having a cross section as shown in FIG. Next, it was mixed with 25 d/10 f of nylon 6 which does not contain ceramics to produce a composite mixed fiber yarn of 95 d/34 f.

This yarn was double covered with 15D spandex, and seamless pantyhose were knitted using the covered yarn. For comparison, a composite yarn 70 d/2 with a concentric sheath-core structure as shown in Fig. 4 using the same polymer was used.
Using 4f, we created seamless pantyhose with exactly the same specifications, and conducted a wearing test on 100 people to determine the significance of the warmth.
Surprisingly, up to 87 out of 100 people said that the ceramic-containing composite filament having a cross section as shown in FIG. It is clear that the quality is excellent.

5091 By using the composite blend spinning method, 24 ceramic-containing composite filaments made of nylon 6 polymer and 12 ceramic-containing composite filaments made of nylon 6 polymer and having a cross section as shown in Figure 3 are produced. The filaments were spun simultaneously to obtain a composite blend yarn of 95 d/34 f. Seamless pantyhose were made using the composite blend yarn of Example 3 in the same manner as in Example 2, and their performance was evaluated by a wear test, and as in Example 2, excellent heat retention was confirmed.

〔Effect of the invention〕

Since the composite mixed fiber yarn for heat-retaining textile products according to the present invention is constructed as described above, various textile products made using this mixed fiber yarn exhibit excellent far-infrared ray effects due to the ceramics contained therein. Furthermore, this mixed fiber yarn has processability equivalent to that of ordinary yarn, and does not cause damage to various processing machines.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of a composite mixed yarn for heat-retaining textile products according to the present invention, and FIG. 2 is a cross-sectional view of an example of the ceramic-containing composite filament of the composite mixed yarn shown in FIG. , FIG. 3 is a cross-sectional view of another example of the ceramic-containing composite filament shown in FIG. 2, and FIGS. 4 and 5 are cross-sectional views showing conventionally known composite filaments having a sheath-core structure. . 1...Composite mixed fiber yarn for heat-retaining textile products, 2.2a, 2
b...Ceramic-containing composite filament, 3...Filament not containing ceramic, 4.
4a, 4b...polymer component containing ceramic (
A part consisting of A), 5.5a, 5b... A part consisting of a polymer component (B) that does not contain ceramic acid, 6... Circumscribed tangents of adjacent convex parts, 7a, 7b... Sheath core Structural ceramic-containing filament.

Claims (1)

[Claims] 1. Polymer component (A) containing 10 to 50% by weight of ceramic and polymer component (B) containing no ceramic
and at least one filament consisting of a polymer component that does not contain ceramics, wherein a part of the component (A) of the composite filament is necessarily a composite filament. It is exposed on the surface of the cross section, and (B)
The components form a convex part in the cross section of the composite filament, and (
A composite mixed fiber yarn for heat-retaining textile products, characterized in that component (A) does not protrude beyond a straight line connecting adjacent convex portions of component B).