JP2001172835A - Lightfast yarn, lightfast cloth and lightfast fiber product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a silk-based fiber product equipped with an improved lightfast property, effectively preventing yellowing caused by light without damaging the excellent property of the silk fiber, and enduring its use without reducing its effect for a long period of time. SOLUTION: This lightfast yarn is obtained by spinning with combining an artificial fiber containing a far infrared light-irradiating material with the silk fiber, preferably so as to surround the artificial fiber with the silk fiber, and the cloth produced by using the lightfast yarn and the fiber product secondarily processed by using such yarn and cloth also show the same effect.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn manufactured using silk fiber, a fabric manufactured using the yarn, and a fiber product manufactured using such a yarn or cloth. In particular, the present invention relates to a silk-based light-resistant fiber product which has conventionally solved the weakness of silk, which is easily yellowed.

[0002]

2. Description of the Related Art Silk-based textiles have the characteristics of being soft and light, and have been reviewed for their features such as good sweat resistance, heat retention and moisture retention, and little irritation to the skin. Demand for such applications is increasing. However, on the other hand, when exposed to artificial light such as sunlight or fluorescent lights,
It is known that there is a disadvantage that yellowing proceeds, and it is also known that the yellowing is promoted by ultraviolet rays contained in these lights.

[0003] Conventionally, in order to prevent such fiber products themselves and dyes used therein from deteriorating due to ultraviolet rays, for example, an ultraviolet absorbent comprising a compound such as a hydroxybenzophenone type, a benzotriazole type or an aziridinyl type has been used. A method of bonding to a fiber using a compound or the like, a method of reacting with a fiber impregnated with polyethylene glycol or the like in advance, and the like have been proposed. However, these methods are not satisfactory as a method for preventing ultraviolet rays from being applied to silk products, because they have problems such as insufficient washing resistance to withstand long-term use and impaired texture.

[0004]

SUMMARY OF THE INVENTION Therefore, the present invention effectively prevents yellowing without impairing the sweat resistance, texture, and other properties of silk fibers, and does not impair the effects of washing or the like. Another object of the present invention is to provide a silk-based fiber product having improved light fastness that can withstand long-term use.

[0005]

The above objects of the present invention can be attained by a light-fast yarn characterized by being spun in combination with a man-made fiber containing a far-infrared-emitting material and a silk fiber. it can.

[0006] The light-resistant yarn of the present invention is formed by combining artificial fibers containing the above-mentioned far-infrared radiating material so as to be surrounded by silk fibers. It is preferable that the fiber is spun so that a silk fiber is wound around the fiber to have any structure of a single covered yarn, a double covered yarn, and a core spun yarn made of a silk fiber having an artificial fiber as a core.

The artificial fibers in the light-resistant yarn of the present invention include regenerated fibers such as rayon and cupra, semi-synthetic fibers such as acetate and protein, polyvinyl alcohol, and the like.
Polyamide-based, polyvinyl chloride-based, polyester-based, polyacrylonitrile-based, polyolefin-based, polyurethane-based, phenol-based, any one selected from synthetic fibers such as polychlore-based fibers, or may be a fiber of more than it, The silk fiber may be a silk fiber of a domestic silkworm or a wild silkworm.

Still another object of the present invention is to provide a light-resistant cloth using the above-mentioned light-resistant yarn in the form of a knitting yarn or a woven yarn at least as a part of a material;
Alternatively, it can also be achieved by a light-resistant fiber product using a light-resistant cloth at least as a part of the material.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The artificial fiber used as the material of the light-resistant yarn of the present invention is any one or more fibers selected from regenerated fiber, semi-synthetic fiber, synthetic fiber and the like as described above. However, any material containing a far-infrared radiation material can be used without any particular limitation. The far-infrared radiation material to be contained in such artificial fibers is disclosed, for example, in Japanese Patent No. 2137667.
Known far-infrared radiation materials and the like described in the specification of No. can be used, but are not necessarily limited thereto, and have a far-infrared radiation similar to this, when manufacturing artificial fibers Alternatively, any material that can be contained in the artificial fiber after production can be used.

In producing the artificial fiber used as the material of the light-resistant yarn of the present invention, for example, a far-infrared radiating material that has been finely ground in advance is mixed with a polymer material that is a raw material of the artificial fiber. Alternatively, a method of extruding the polymer material containing the far-infrared radiation material from the spinning nozzle and stretching the extruded strand to a required thickness can be used. However, such a method of spinning man-made fibers, spinning conditions, etc., adopt a method suitable for the polymer material as each raw material,
Further, it goes without saying that appropriate spinning conditions and the like can be selected in each method.

In the present invention, in order to obtain a spun yarn having a form in which the artificial fiber is surrounded by the silk fiber by combining the artificial fiber containing the far-infrared radiation material and the silk fiber, for example, a plurality of artificial fibers are used. As a core, a method of arranging a plurality of silk fibers around the periphery and twisting them to form a ply-twisted yarn, for example, using a twisted yarn composed of a plurality of artificial fibers as a core, and winding a plurality of silk fibers around the periphery in a single winding Alternatively, a method of double winding, for example, a method of winding silk short fibers while twisting a core made of a plurality of artificial fibers, or the like can be appropriately selected and used depending on the intended use of the yarn.

The light-resistant yarn of the present invention thus produced does not easily cause yellowing even when exposed to sunlight or the like, and has a significantly higher photochromic property than ordinary silk yarn or silk cloth. Has been improved. The phenomenon that the photochromic properties of silk fibers are improved by incorporating artificial fibers containing far-infrared-emitting materials was discovered by the present inventor quite accidentally during research. The reason for the emergence of this has not yet been elucidated, but it may be applied to the improvement of photochromic properties of various materials with similar materials and structures, in addition to natural silk fibers. It seems to gain.

The effect of improving the light discoloration of the light-fast yarn of the present invention is extremely remarkable, and the yarn can be used for various applications utilizing the light fastness. That is, the light-resistant yarn of the present invention can be used as it is as a woven yarn, a knitting yarn, a sewing thread, a sewing yarn, or the like, but in some cases, it can also be used as cotton, and a woven fabric, a pile woven fabric, a knitted fabric, Or, as fabrics such as non-woven fabrics, and as secondary processed goods such as yarns and fabrics, in addition to various kinds of clothes, arts and crafts, various interior materials, and textile products such as small articles, etc. It can be used for any purpose.

[0014]

EXAMPLES Hereinafter, the present invention will be described specifically with reference to Examples and Comparative Examples, but the present invention is not limited by these descriptions.

Reference Example 1 40 parts by weight of titanium dioxide, 40 parts by weight of alumina, 20 parts by weight of zirconia, and 0.5 part by weight of a mixed oxide of a rare earth metal and an average particle diameter of 0.3
μm, 2 parts by weight of the far-infrared ray radiating material described in the specification of Japanese Patent No. 2137667 is mixed with 100 parts by weight of a nylon resin for a fiber, and melt-spun.
A denier 24 filament yarn (NF-A) was spun.
Also, for comparison, 80 without the far-infrared radiation material
A denier 24 filament yarn (NF-B) was also prepared.

(Example) A 21-silk (SF) yarn obtained by unwinding from 7 silkworm cocoons was put together with NF-A on an eight-chow twisting machine, and the right-handed twist of the present invention was obtained at a spindle rotation speed of 3200 times for 1 m. A strong twisted yarn (RT-A) and a left-twisted strong twisted yarn (LT-A) of the present invention were produced. Next, using a tappet type power loom, SF was used as the warp and RT-A was used as the weft.
Two pieces of LT-A and two pieces of LT-A were alternately driven into the silk desin cloth (FA) of the present invention.

(Comparative example) Instead of using NF-A, NF-B containing no far-infrared ray radiating material was used in exactly the same manner as in the example, and a right-handed twisted twisted yarn (RT-
B) and a left-handed twisted high twist yarn (LT-B) as a control. And RT-A and LT by tappet type loom
A control silk desin cloth (FB) was prepared in exactly the same manner as in Example except that RT-B and LT-B were used instead of using -A.

(Test Example) The silk decin cloth (FA) prepared in the above example and the silk decin cloth (FB) prepared in the comparative example were used.
And according to "Dyeing Fastness Test Method for Carbon Arc Light" described in JIS L 0842,
The discoloration / fading test was performed as follows. That is, using a fade meter (manufactured by Suga Test Instruments, FAL-H type),
Each of the test pieces cut out from A and FB was exposed side by side with a reference test piece (blue scale) dyed with a blue dye and having a light resistance of a standard grade, and the discoloration of the test piece, the discoloration of the blue scale, and the naked eye were observed. And the grade of light resistance was determined. As a result, the FB of the control product was 3 grades, whereas the FA of the present invention was 5 grades, which easily exceeded the 4th grade, which is the acceptance standard of light resistance of general textile products. I understood.

[0019]

The light-resistant yarn of the present invention is obtained by spinning a synthetic fiber containing a far-infrared radiation material and a silk fiber, preferably by combining the artificial fiber so that the silk fiber surrounds the artificial fiber. Discoloration due to light, especially yellowing can be effectively prevented without impairing the excellent properties of the fiber, and the effect is not impaired by washing, etc., and excellent light resistance is maintained over a long period of time, Cloths made from light-fast yarns, as well as silk-based fiber products obtained by secondary processing using these yarns and fabrics, also have excellent light-fastness and can greatly extend the service life. There is also an economic effect.

 ──────────────────────────────────────────────────の Continued on the front page F term (reference) 3B151 AB09 AC47 CA03 CA07 CA08 CA15 CB13 4L002 AA04 AA06 AB02 AB04 AC06 EA00 4L036 MA04 MA05 MA06 MA08 MA39 PA21 PA31 PA46 RA25 UA08 UA10 4L048 AA24 AA42 AA56 AB05 AB19 AC00 BA01

Claims (10)

[Claims] 1. A light-resistant yarn obtained by spinning a combination of a man-made fiber containing a far-infrared radiation material and a silk fiber. 2. The light-resistant yarn according to claim 1, wherein the artificial fibers are combined so as to be surrounded by silk fibers. 3. The light-resistant yarn according to claim 2, wherein the artificial fiber and the silk fiber are ply-twisted. 4. The light-resistant yarn according to claim 2, wherein the yarn is spun so that a silk fiber is wound around the artificial fiber. 5. The light-resistant yarn according to claim 4, wherein the yarn has a structure of one of a single covered yarn, a double covered yarn, and a core spun yarn made of a silk fiber having the artificial fiber as a core. 6. The artificial fibers include regenerated fibers such as rayon and cupra, semi-synthetic fibers such as acetate and protein, polyvinyl alcohol, polyamide, polyvinyl chloride, polyester, and polyacrylonitrile. The light-resistant yarn according to any one of claims 1 to 5, wherein the yarn is any one or more fibers selected from synthetic fibers such as polyolefin, polyurethane, phenol, and polyclar. 7. The light-resistant yarn according to claim 1, wherein the silk fiber is a silkworm-based or wild-silkworm-based silk fiber. 8. A light-resistant cloth, wherein the light-resistant yarn according to claim 1 is used as at least a part of a material. 9. The light-resistant cloth according to claim 8, wherein the light-resistant yarn is used as a knitting yarn or a woven yarn. 10. The light-resistant yarn according to any one of claims 1 to 7, or the light-resistant cloth according to claim 8 or 9,
A light-resistant fiber product used at least as a part of a material.