JPH0978472A - Fabric exhibiting back-light-like color effect - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a fabric free from the fear of the generation of naps, etc., capable of exhibiting back-light-like color effect and suitable for a skiing wear, etc., by adjacently arranging a fiber which contains a material emitting fluorescence, etc., and exists in a non-colored state and a fiber which exists in a state colored with pigments, etc., to each other. SOLUTION: This fabric is composed mainly of a fiber A consisting of a fiber, etc., containing a material such as a pyrene compound which emits fluorescence or phosphorescence, existing in a non-colored state and undyeable with an ionic dye, and a fiber B consisting of a fiber, etc., existing in a state colored with a pigment or a dye such as a mono azo compound and dyeable with an ionic dye, the fiber A and the fiber B being adjacent to each other in the fabric. Further, the fiber A and the fiber B are preferably made to be composite by blending or mixed spinning.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a fabric exhibiting a backlight toning effect. More specifically, in the present invention, by arranging a fiber colored with a pigment or a dye and a fiber emitting fluorescence or phosphorescence adjacent to each other, the former color and the latter excitation light by ultraviolet light are mixed. The present invention relates to a cloth exhibiting a color effect of a backlight tone.

[0002]

2. Description of the Related Art It would be a great pleasure for both a wearer and a spectator that clothing worn for outdoor sports has a fantastic and vivid color effect when exposed to sunlight.

In order to satisfy such a requirement, for example, Japanese Patent Laid-Open No. 5-156519 discloses a backlight toning effect including a polymer containing a substance emitting fluorescence or phosphorescence and a polymer colored with a pigment or a dye. A conjugate fiber exhibiting the following is disclosed.

However, in the above conjugate fiber, the polymer containing the substance that emits fluorescence or phosphorescence and the polymer colored with the pigment or the dye are arranged adjacent to each other at extremely close positions within the same single fiber. It has been found that the transmitted light and the reflected light are uniformly mixed with each other to cause interference and it is difficult to produce a clear color effect.

Further, in the production of the above conjugate fibers, there is a drawback that a special composite spinning device is required and that fluffs frequently occur due to peeling of the composite fiber components during weaving, knitting and dyeing. There is.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to fabricate a fabric that exhibits a vivid backlight-like color light-emitting effect when exposed to sunlight or ultraviolet rays in an artificial light source without fear of fluffing or the like. The purpose is to provide.

[0007]

Means for Solving the Problems As a result of intensive studies for achieving the above object, the inventors of the present invention have independently prepared a polymer containing a substance emitting fluorescence or phosphorescence and a polymer colored with a pigment or a dye independently of each other. It has been determined that the desired fabric is obtained when molded as a woven fiber and the fibers are placed adjacent to each other.

Thus, according to the present invention, a fiber (A) containing a substance that emits fluorescence or phosphorescence and in a non-colored state
And a fiber (B) colored with a pigment or a dye, which is characterized in that the fiber (A) and the fiber (B) are arranged adjacent to each other. Fabrics are provided that exhibit a backlight toning effect.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The cloth of the present invention refers to a fiber aggregate such as a woven fabric, a knitted fabric and a non-woven fabric. Such a cloth contains a substance that emits fluorescence or phosphorescence and is in a non-colored state (A). It is mainly composed of fibers (B) which are colored with a pigment or a dye.

The fibers (A) and (B) may be continuous long fibers or short fibers.

Further, in addition to the fibers (A) and (B), other fibers may be mixed and used in the above-mentioned fabric within a range not impairing the effects of the present invention.

Here, examples of the substance that emits fluorescence or phosphorescence include pyrene compounds, oxazole compounds, coumarin compounds, thiazole compounds, imidazole compounds, imidazolone compounds, pyrazole compounds, benzidine compounds, diaminocarbazole compounds. Examples thereof include compounds, naphthalic acid compounds, and diaminostilbene sulfonic acid compounds.

The above substance is kneaded into the polymer in the range of 0.01 to 1.0% based on the weight of the fiber (A), or the surface of the fiber is surface-coated.

As the pigment or dye for coloring the fiber (B), monoazo compounds, disazo compounds, anthraquinone compounds, quinoline compounds, triallylmethane compounds, acridine compounds, diphenylmethane compounds, oxazine compounds. Examples thereof include compounds, nitro compounds, methine compounds, aminoketone compounds, and triphenylmethane compounds.

The above-mentioned pigments or dyes (hereinafter sometimes simply referred to as colorants) are dyed by kneading or dyeing the polymer in the range of 0.01 to 10% based on the weight of the fiber (B). It

The polymers constituting the fibers (A) and (B) include polyester, nylon-6, nylon-6.
6 and the like, and among them, polyester having polyethylene terephthalate as a main constituent component is preferable.

The denier of the above fibers (single fiber denier) is preferably 0.1 to 40, and the total denier when forming a multifilament yarn or a blended yarn is preferably 30 to 250. .

To obtain the cloth of the present invention using the above fibers, for example, the following methods (1) and (2) may be adopted. Further, in this case, the methods (1) and (2) may be combined as appropriate without any problem.

(1) Method of Using Spun-dyed Fiber First, a fiber (A) is prepared from a melted polymer in which a substance emitting fluorescence or phosphorescence is added and blended by using a known spinning and drawing method.
The multifilament of the fiber (B) is obtained from the molten polymer to which the colorant is added and blended.

Next, the above-mentioned multifilaments are mixed,
By using a means such as twisting or entanglement to make a composite yarn, and by intermingling and dispersing them in the cross section of the yarn,
The fibers (A) and the fibers (B) are arranged so as to be adjacent to each other.

At this time, a so-called spinning mixed fiber method may be adopted in which the fibers (A) and the fibers (B) are discharged from separate discharge holes and are compounded at the time of winding the spinning.

Further, after the fibers (A) and the fibers (B) are both made into staple fibers, they are mixed to form a mixed yarn.
The fibers (A) and the fibers (B) may be arranged adjacent to each other.

A fabric (woven fabric or knitted fabric) is produced by using the composite yarn of the fiber (A) and the fiber (B) thus obtained.

Further, in the case of a non-woven fabric, the fibers (A) and the fibers (B) may be mixed by blending cotton, melt-blowing or the like and molded by a conventionally known method.

Further, as a method for obtaining the cloth of the present invention,
The multifilament of the fiber (A) and the fiber (B)
Another example is a method in which the multifilaments of (1) and (2) are woven and knitted so that the fibers (A) and the fibers (B) are arranged adjacent to each other.

(2) Method Utilizing Dyeing Process Two kinds of fibers (A ') and (B) having different dyeing properties from each other.
The fabric consisting of ′ ′ ”is dipped in a solution containing a substance that emits fluorescence or phosphorescence, and the surface of the fiber (A ′) is coated with a substance that emits fluorescence or phosphorescence to obtain fibers (A), Fiber (B ') is obtained by dyeing fiber (B') with a dye or pigment that does not dye A ') but only fiber (B').

At this time, it is necessary to pay attention to the combination of the polymers forming the fibers (A ') and the fibers (B') and the dyeing property of the dye or pigment used, and the fibers (A ') and (B').
′) Is a combination that is not dyed with a similar dye.

That is, the surface of the fiber (B ') may be coated with a substance that emits fluorescence or phosphorescence.
When ′) is colored with a dye or a pigment, the luminescent effect intended by the present invention is not achieved.

Specifically, for example, polyethylene terephthalate dyeable with a disperse dye (not dyed with an ionic dye) is used for the fiber (A '), and a fiber dyeable with an ionic dye (for the fiber (B') ( Cationic dye dyeable polyethylene terephthalate, acid dye dyeable polyethylene terephthalate,
Nylon-6, nylon-66, etc.) are used.

Then, when the cloth made of such fibers is dipped in a solution containing a substance that emits fluorescence or phosphorescence and then dyed with an ionic dye, the fibers (B ') are dyed, but the fibers (A'). ) Is not dyed and the non-colored state is maintained.

In this case, the substance that emits fluorescence or phosphorescence is also adsorbed on the surface of the fiber (B '), but when this substance comes into contact with the dye, its luminescent property disappears, so that the fiber is in a non-colored state. Only in the portion (A), the light emission characteristics are maintained.

Further, as another embodiment, a woven fabric having polyethylene terephthalate dyeable with a cationic dye as the fiber (A ') and nylon (acid dye dyeable) as the fiber (B') is dyed with an acid dye. You may. At this time, the combination of (A ′) and (B ′) may be reversed.

Here, two types of fibers (A
A fabric composed of (') and (B') means (A ') and (B
′) Is made into a composite yarn by using means such as mixed fiber, interlaced or entangled, and then the composite yarn is made into a fabric, and both (A ′) and (B ′) are made into staple fibers , A mixed-spun yarn formed by blending cotton, and a fabric obtained by knitting or knitting the multifilament of (A ′) and the multifilament of (B ′).

The mixing ratio of the fiber (A) and the fiber (B) is
(A) is 10 to 90% by weight, (B) is 90 to 10% by weight
It is preferable to set it as the range.

When the mixing ratio of the fiber (A) is less than 10% by weight, the intended color effect is not exhibited. That is, since the excitation light due to ultraviolet rays is weak, a fabric exhibiting a backlight-like light emitting effect may not be obtained.

On the other hand, when the mixing ratio of the fiber (A) exceeds 90% by weight, the excitation light due to the ultraviolet light is too strong, and the reflected light due to coloring is hidden to give a colorless white light, which gives a fantastic light emitting effect. Sometimes I can't.

Therefore, the mixing ratio of the fiber (A) and the fiber (B) is preferably within the above range, and more preferably the mixing ratio of the fiber (A) is 20 to 80% by weight.

[0038]

[Function] Since the cloth of the present invention has the above constitution,
When it is exposed to sunlight, especially ultraviolet rays, it produces a backlit color effect.

The reason for this will be described with reference to FIG.

FIG. 1 shows the state of reflection and transmission of light when the cloth of the present invention is exposed to an artificial light source containing ultraviolet rays or sunlight, and R is reflected from the surface or inside of the fiber (B). The reflected light, r, is the transmitted light of the light incident from the surface of the fiber (A), which emits fluorescence or phosphorescence.

If both of the fibers are colored, only the reflected light R and no transmitted light r are produced, so that a monotonous color is visible. However, in the fabric of the present invention, the reflected light R reflected from the surface or inside of the fiber (B) is mixed with the fluorescent light or phosphorescent light which is the transmitted light r of the light incident from the surface of the fiber (A), and it is as if The backlight-like luminous effect is exhibited.

At this time, unless the fiber (A) and the fiber (B) are arranged adjacent to each other, the reflected light and the transmitted light are not mixed with each other, and the backlight-like light emitting effect cannot be obtained. In the case where the reflected light and the transmitted light are mixed at extremely close positions within the same fiber, as in the conjugate fiber disclosed in Japanese Patent Application Laid-Open No. 5-156519,
The transmitted light and the reflected light are mixed uniformly, and an interference effect appears, resulting in an unclear color.

Further, in the present invention, the complex spinning device necessary for the production of the above-mentioned conjugate fiber is not required, and an ordinary spinning machine can be used as it is, and the fluff that frequently occurs when the conjugate fiber is used. No problem,
It has an advantage that general-purpose conditions can be directly adopted for knitting, weaving and dyeing.

[0044]

EXAMPLES The present invention will now be specifically described with reference to examples, but the present invention is not limited thereto.

[Example 1] To polyethylene terephthalate having an intrinsic viscosity of 0.66, 0.35% of Eastman Optical Ply Toner 1 (a fluorescent pigment manufactured by Eastman Chemical Products Co., based on the weight of the polymer) was added. The fiber (A) having a round cross section of 75 denier / 36 filament was obtained by spinning by the method.

On the other hand, 70 denier / 36 filament, nylon-6 fiber having a round cross section obtained by a usual method was used as the fiber (B ').

A fabric woven by mixing the fibers (A) and (B ') in an interlaced system and arranging the resulting composite yarns on warp and weft (warp density 44 yarns / cm, weft density 38
(Book / cm) was scoured and preset according to a conventional method.

Next, this woven fabric was treated with an acid dye Nylosan.
Using Navy N-RBL (manufactured by Sand Co., Ltd.),
Dyeing with 0.8% owf (dye concentration relative to fabric weight) at a bath ratio of 1:25 and a treatment temperature of 100 ° C., a substance that emits fluorescence is blended, and colored with an uncolored fiber (A) and a dye. A woven fabric was obtained in which the fibers (B) in the state were arranged adjacent to each other.

When this woven fabric was exposed to sunlight, the hue peculiar to the blue acid dye was softened, and the luminescent effect was as if it were a backlight. This is the fiber (B),
It is presumed that this is due to the effect that the blue colored light of the blue dye is mixed with the excitation light of the ultraviolet rays of the adjacent fiber (A).

The above-mentioned effect is obtained by a black light (manufactured by Tokyo Optical Co., Ltd .; type PAN) which emits the same wavelength as ultraviolet rays.
When UV LAMP PUV-1) was used as the main light source to irradiate the above-mentioned cloth, it was similarly observed, and a very bright blue color and a backlight-like light emitting effect were obtained.

Example 2 A cationic dye-dyeable polyethylene terephthalate having an intrinsic viscosity of 0.58 (polyethylene terephthalate copolymerized with 2.0 mol% of 3,5-dicarboxybenzene-tetrabutylphosphonium sulfonate) was used. 75 denier / 72
A filament and a fiber (B ') having a round cross section were obtained.

On the other hand, two 40-denier / 34-filament multifilaments obtained by spinning nylon-6 polymer by a conventional method were further combined to obtain a fiber (A ').

The fibers (B ') and the fibers (A') thus obtained are alternately arranged on the warp and the weft, respectively,
A plain weave fabric having a warp density of 112 yarns / inch and a weft yarn density of 86 yarns / inch was prepared, scoured, set, and then dyed under the following dyeing bath and dyeing conditions. -Fluorescent dye Nikkabright PAW 1% owf-Cationic dye Eisencatilone Red CD-FGLH 1% owf-Acetic acid 0.3 g / l-Bath ratio 1:30, dyeing temperature 130 ° C, time 30 minutes The surface was coated with a substance that emits fluorescence, and the fibers (A) in the non-colored state and the fibers (B) in the colored state with the dye were arranged adjacent to each other.

When this woven fabric was exposed to sunlight, the hue peculiar to the red cationic dye was softened, and the luminescent effect was as if it were a backlight. This is fiber (B)
Fiber adjacent to the red colored light of the red dye (A)
It is presumed that this is due to the effect of mixing the excitation light due to the ultraviolet rays.

The above effect is obtained by a black light (manufactured by Tokyo Optical Machine Co., Ltd .; type PAN) that emits the same wavelength as ultraviolet light.
When UV LAMP PUV-1) was used as the main light source to irradiate the above-mentioned cloth, it was similarly observed, and a very bright red color and a backlight-like light emitting effect were obtained.

[0056]

EFFECTS OF THE INVENTION According to the present invention, it is possible to provide a cloth exhibiting a vivid backlight-like color light-emitting effect when exposed to sunlight or ultraviolet rays in an artificial light source without fear of generation of fluff. Therefore, it can be suitably used for ski wear or the like worn in outdoor sports.

[Brief description of drawings]

FIG. 1 is a schematic diagram for explaining a light emission effect of a backlight tone.

[Explanation of symbols]

 R reflected light r transmitted light

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location D03D 15/00 102 D03D 15/00 102Z

Claims (6)

[Claims] 1. A fabric mainly comprising a fiber (A) which contains a substance emitting fluorescence or phosphorescence and which is in a non-colored state, and a fiber (B) which is colored by a pigment or a dye, A fabric exhibiting a backlight toning effect, characterized in that the fibers (A) and the fibers (B) are arranged adjacent to each other. 2. A fabric exhibiting a backlight toning effect according to claim 1, wherein the fiber (A) and the fiber (B) are compounded by a mixed fiber or a mixed spinning. 3. A fabric exhibiting a backlight toning effect according to claim 1, wherein the fiber (A) and the fiber (B) are compounded by interwoven or interwoven. 4. A fabric exhibiting a backlight toning effect according to claim 1, 2 or 3, wherein at least one of the fiber (A) and the fiber (B) is a polyester fiber containing polyethylene terephthalate as a main constituent. 5. The cloth exhibiting a backlight toning effect according to claim 1, 2, 3 or 4, wherein the fiber (A) is a fiber which is not dyed with an ionic dye. 6. The cloth exhibiting a backlight toning effect according to claim 1, 2, 3, 4 or 5, wherein the fiber (B) is a fiber dyeable with an ionic dye.