JPH09119005A - Production of light-colored swimming suit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a light-colored swimming suit free from see-through problem even by using a single layer structure and giving comfortable feeling in wearing. SOLUTION: A multifilament yarn of a core-sheath conjugate fiber containing a white pigment in the core is knitted together with an elastic yarn by a warp knitting machine to obtain a knit fabric containing >=50wt.% of the multifilament. The obtained fabric is dyed to a light color and sewn to form a swimming suit. It is preferable to adjust the areal density of the fabric to 150-350g/m<2> and the stretchability to 70-300% in lateral and longitudinal directions. Preferably, the number of filaments in the multifilament is 5-100 and the single fiber fineness is 0.5-10de. A fabric resistant to see-through and having high colorability can be produced by using a core-sheath conjugate fiber containing 3-30wt.% (based on the polymer constituting the conjugate fiber) of a white pigment selected from titanium oxide, zinc oxide, aluminum oxide, zirconium oxide, calcium oxide and magnesium oxide in the core part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a light-colored swimsuit having excellent transparency.

[0002]

2. Description of the Related Art Since a polymer substrate used for synthetic fibers is originally transparent, a swimsuit made of a knitted fabric which is knitted with synthetic fibers made only of a polymer and dyed in a light color system has a defect that the one underneath can be seen through. There is. For this reason, in light-colored swimwear, in order to make up for this drawback, the swimwear is made to have a double-layered tailoring entirely, or a fabric that is dyed in the same color as the flesh color is used for the lining on a specific area. I was doing In addition to these, methods of increasing the basis weight of the fabric, increasing the thickness, and reducing the elasticity are conceivable, but there is a limit as a fabric for water wear. With the above measures including sewing specifications, when worn as a swimsuit, it is too thick, too heavy, lack of stretch prevents the body from moving easily, etc.
There is a problem that wearability and aesthetics are deteriorated and cost is increased.

Further, as a method for improving the sheerproof property by improving the fabric structure, a method of arranging a thread dyed in a gray color on the back side of a white fabric is proposed in JP-A-3-45791. . This method is effective for anti-transparency, but since the back side is gray, the white surface of the fabric is liable to be dull, and there is a problem in aesthetics. Also, at least 2
Since different kinds of yarns are required, complexity and cost increase in the fabric manufacturing stage cannot be avoided.

Japanese Unexamined Patent Publication (Kokai) No. 3-213536 discloses a light shield containing synthetic fibers containing 5 to 35% by weight of ceramics having a spectral reflectance of 50% or more for electromagnetic waves of wavelength 0.4 to 2 μm. However, this has a heat-shielding effect by reflecting the heat energy of the sun's rays, and does not have an effect of improving anti-transparency.

Due to the above-mentioned problems, a swimsuit dyed in a light color system has not been obtained that is excellent in anti-transparency, wearability as a swimsuit and further aesthetics. Is the reality.

[0006]

SUMMARY OF THE INVENTION The object of the present invention is to solve the above-mentioned drawbacks of the conventional swimwear and to dye it in a light color such as white, flesh color, yellow, pink or cream. It is an object of the present invention to provide a method for manufacturing a light-colored swimwear that can be manufactured at a low cost, even if the sewing specification is a single tailoring, which is excellent in anti-transparency and can satisfy the wearability and aesthetics at low cost.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention uses a warp knitting machine to combine a multifilament of a core-sheath type composite fiber containing a white pigment in a core portion with an elastic yarn. Knitting, and the content of the above multifilament is 5
Adjust to 0% by weight or more, dye the resulting knitted fabric in a light color,
Provided is a method for manufacturing a light-colored swimsuit, which comprises sewing the swimsuit. In the method for producing a light-colored swimwear described above, when the basis weight of the knitted fabric is adjusted to be in the range of 150 to 350 g / m ² and the elongation of the knitted fabric is adjusted to be in the range of 70 to 300% in both the warp and weft directions, the swimsuit is hard to be transparent and comfortable to wear. Is easy to obtain. The number of constituent filaments of the multifilament of the core-sheath type composite fiber is 5 to 100 filaments, and the single fiber fineness is 0.5 to 10
A denier range is preferred.

The core-sheath type composite fiber comprises a core-sheath type fiber containing at least one or two or more white pigments selected from the group consisting of titanium oxide, zinc oxide, aluminum oxide, zirconium oxide, calcium oxide and magnesium oxide. When it is contained in the core portion in an amount of 3 to 30% by weight based on the polymer forming the composite fiber, it becomes easy to obtain excellent anti-transparency and color developability. Furthermore, by adjusting the L _b value of the knitted fabric within the range of 0.6 to 8%, high transparency can be expected. In the present invention, the light color means a light color such as white or flesh color, yellow, pink, cream color and the like.

In the present invention, various characteristics of the light-colored swimsuit were measured by the following methods. Elongation rate Measurement was carried out by the grab method of the constant speed elongation method of JIS L1018. A test piece of 10 cm x 15 cm is put in the longitudinal direction of the swimsuit,
Three samples each were taken in the weft direction. Using a constant-speed extension type tensile tester with a self-recording device, the top and bottom grips are 2.
54 cm x 2.54 cm, the other side is 2.54 cm x 5.0
An 8 cm piece was attached, the gripping interval was set to 7.6 cm, and the test piece was fixed on the grip by removing slack and tension.
The sheet was stretched at a pulling speed of 10 cm / min to a load of 1.8 kg, the gripping interval D at that time was measured, and the elongation rate (%) was calculated using the following formula, and expressed as an average value of three sheets. Elongation rate (%) = {(D ₁ −D) / D} × 100 where D is the gripping interval (mm) and D ₁ is the gripping interval when stretched to a weight of 1.8 kg.

[0010] was measured using a L _b value by Suga Test Instruments Co., Ltd. colorimeter SM-3 type. First, the blackness of the measurement sample installation part was confirmed. That is, a felt cloth dyed in black was attached to the measuring portion, and the L value (brightness) of the felt cloth was 14 ± 0.5.
%. Next, the whiteness of the measurement sample installation part was confirmed. That is, a standard white plate was attached to the measurement part, and it was confirmed that the L value (brightness) of the standard white plate was 91 ± 0.5%. These confirmation procedures are a usual method for measuring the L value (brightness) of the cloth, and a generalized method. The L value of high whiteness fabric is close to 91%,
On the contrary, the L value of black cloth is close to 14%. Next, the test piece was measured as follows. First, a black felt cloth and one test piece are attached to the measurement unit to measure the L value, the measured value is set to LB, and a standard white plate and the same test piece are attached to the measurement unit to measure the L value, and the measurement is performed. The value was defined as LW, and the difference between LW and LB (LW-LB) was determined. The same test piece was repeatedly measured 5 times, and an average value of 5 times was calculated to obtain an L _b value indicating the degree of anti-scratch property.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION The method for manufacturing a light-colored swimsuit of the present invention will be described in detail. The present invention, due to the synergistic effect of the core-sheath type composite fibers constituting the swimwear and the knitted fabric structure, is dyed in a light color while maintaining the optimal fabric weight, thickness, stretchability and further aesthetics as a swimwear. Nevertheless, it is possible to provide a light-colored swimsuit having excellent transparency.

In the method for producing a light-colored swimsuit of the present invention,
A swimsuit is sewn using a knitted fabric obtained by interlacing multifilaments of core-sheath type composite fibers and elastic yarns. By including a white pigment in the core portion of the core-sheath type composite fiber to make the polymer substrate opaque, and by using it in the form of a multifilament, it is possible to enhance the transparency prevention property. The content of the multifilament is 50% by weight or more of the knitted fabric 95
It is preferable to adjust the content to be not more than weight%. The higher the content of multifilaments, the more the transparency is improved. On the other hand, when it exceeds 95% by weight, the mixing ratio of the elastic yarn is lowered, the stretchability is deteriorated and it becomes difficult to move.

The elastic yarn interwoven with the core-sheath type composite fiber is not particularly limited. For example, by using polyurethane elastic yarn, a swimsuit having an excellent elongation rate can be obtained.
In addition to the elastic thread, other materials can be mixed if necessary.

The multifilament and the elastic yarn are knitted with a warp knitting machine. As the knitted fabric, warp knitted fabrics such as tricot and Russell are thin and excellent in dimensional stability, and are suitable for swimwear. Of these, tricot is preferable, and it is particularly preferable to use a multi-layered knitted fabric having a tricot, such as a satin structure or a half structure having three reeds and an insertion structure having three reeds.

The above-mentioned knitted fabric has a basis weight of 150 to 350 g /
It is preferable to adjust to the range of m ² . Weight is 150g
If it is less than / m ^{2, the} swimsuit tends to be poor in the anti-translucency effect. On the other hand, if it exceeds 350 g / m ² , the anti-transparency effect will be good, but it will be too heavy for a knitted fabric for wearing, and if it is worn, it will feel heavy and hinder movement, resulting in increased physical fatigue and discomfort. Such as
The wearability of swimwear tends to decrease.

The elongation of the knitted fabric is 70 to 30 in both the warp and weft directions.
It is preferably adjusted to 0%. When the elongation rate is less than 70%, a swimsuit worn in a state of fitting to the body tends to hinder the movement of the body and is likely to have poor wearability. The higher the elongation rate, the more likely the wearability of the swimsuit is to improve. However, when the elongation rate exceeds 300%, the swimsuit tends to be too stretched to fit the body in a wet state, which makes it rather difficult to move.

The number of constituent filaments of the multifilament is preferably about 5 to 100 filaments, and the single fiber fineness is preferably about 0.5 to 10 denier. The cross-sectional outer shape of the core-sheath type composite fiber may be a round cross section,
A deformed cross section such as a triangle is more preferable because it becomes more difficult to show through. The cross-sectional shape of the core portion may be a round cross-section, and a triangular shape, a star-shaped shape or the like is also preferable.

Among the core-sheath type composite fibers described above, a knitted fabric using a core-sheath type composite fiber in which the core portion contains a white pigment and the sheath portion is composed of only the substrate polymer is suitable for a light-colored swimsuit. As a white pigment, sufficient opacity is obtained, and the color development does not deteriorate even when dyed not only in a white color but also in a light-colored color such as flesh color, yellow, pink, and cream. It is desirable not to hinder manufacturing. For example, titanium oxide, zinc oxide, aluminum oxide, zirconium oxide, calcium oxide, magnesium oxide and the like are preferably used, and among these, titanium oxide is preferable because it is easy to manufacture the raw yarn and is low in cost. Further, these may be mixed and used.

The content of the white pigment in the core portion is preferably 3 to 30% by weight with respect to the polymer forming the core-sheath type composite fiber, and particularly when titanium oxide is used, the content of the white pigment is 5 to 25% by weight. preferable. When the content of the white pigment is within the above range, there is a tendency that the transparency of the swimsuit is easily obtained,
It is easy to prevent the deterioration of the color developability and the yarn formability in the production of the raw yarn.

The matrix of the polymer of the core-sheath type composite fiber is not limited as long as it is a polymer capable of forming a fiber, such as a polyamide type, a polyester type or a polypropylene type. The above-mentioned core-sheath type conjugate fiber can be obtained by using a usual technique for producing a yarn, such as a process in which a polymer obtained by mixing a white pigment in a spinning dope and a substrate polymer are subjected to a complex spinning at a spinneret.

Furthermore, in the method for producing a light-colored swimsuit of the present invention, it is preferable to sew a swimsuit using a knitted fabric having an L _b value adjusted to a range of 0.6 to 8%. From the viewpoint of sufficiently providing the anti-transparency effect, the lower the L _b value is, the more preferable, and it is more preferable to adjust it to 2.5% or less. However, when the L _b value is less than 0.6%, when a white-dyed knitted fabric is used, the knitted fabric becomes thick and stretch is insufficient, so that the wearability of the swimsuit tends to be deteriorated. On the other hand, when a knitted fabric having an L _b value of more than 8% is used, the lower one may be seen through.

A light-colored swimsuit is sewn using the knitted fabric obtained by dyeing the above-mentioned knitted fabric in a light color. The method for dyeing the knitted fabric is not particularly limited as long as it is a method suitable for the polymer substrate used in the above-mentioned multifilament, and a normal nylon dyeing method, a polyester dyeing method or the like can be used.

[0023]

EXAMPLES The method for producing a light-colored swimsuit of the present invention will be described below in more detail with reference to specific examples. In the Examples and Comparative Examples, the female 10
The color development was visually evaluated by the feeling of wearing the swimsuit by name. The criteria are as follows. <Transparency> ◎: Completely transparent, ○: Almost transparent, ×: Transparent <Easy to move> ○: Easy to move, ×: Difficult to move <Color development> ○: Good color development, Δ: Slight color development Inferior,
X: poor color development

Example 1 5% by weight of titanium oxide as a white pigment (ratio to polymer)
Using 50-denier, 17-filament core-sheath nylon multifilament contained in the core, and 40-denier polyurethane elastic yarn (manufactured by Toray DuPont Co., Ltd.),
28-gauge single tricot machine with two reeds, Fig. 1
Nylon yarn is arranged on the front reed shown in Fig. 2 and polyurethane elastic yarn is arranged on the back reed to form a half structure. The mixing ratio of each yarn was 80% by weight of nylon and 20% by weight of polyurethane elastic yarn. After knitting, the knitted fabric was dyed white according to an ordinary nylon dyeing method to obtain a knitted fabric having a basis weight of 201 g / m ² . The stretch rate of the knitted fabric was warp 131%, weft 91%, and L _b value was 4.6%. A swimsuit was sewn using the obtained knitted fabric as the outer material. The wearing feeling and color development were evaluated, and the results are shown in Table 1. Satisfaction of wearing feeling such as transparency and ease of movement,
It was a white swimsuit with good color development. In addition, as a result of dyeing the same knitted fabric with a skin color, the L _b value was 0.6, and the translucency was further improved.

Example 2 Knitting and dyeing were carried out using the same yarn as in Example 1, and 156
A knitted fabric having a basis weight of g / m ² was obtained. The expansion rate of the knitted fabric is 133
%, 96% weft, L _b value was 5.0%. Using the knitted fabric thus obtained, a swimsuit was sewn in the same manner as in Example 1 and the wearing feeling and color development were evaluated. Table 1 shows the evaluation results.
It was a white swimsuit that satisfied transparency and ease of movement and had good color development.

Example 3 5% by weight of titanium oxide as a white pigment (ratio to polymer)
50-denier, 17-filament core-sheath type polyester multifilament contained in the core (manufactured by Toray Industries, Inc.)
And a polyurethane elastic yarn 40 denier similar to that used in Example 1, were used to knit a knitted fabric in the same manner as in Example 1. The mixing ratio of each yarn was 80% by weight of polyester and 20% by weight of polyurethane elastic yarn. After knitting, dyed white according to the usual polyester dyeing method, 203 g / m ²
A knitted fabric with a fabric weight was obtained. The stretch rate of the knitted fabric is 125%, weft 88
%, L _b value was 4.5%. Using the obtained knitted fabric,
A white swimsuit was sewn in the same manner as in Example 1 and the wearing feeling and color development were evaluated. The results are shown in Table 1. Similar to Example 1, the white swimsuit had a good wearing feeling and appearance.

Example 4 A core-sheath type nylon multifilament having 50 denier and 17 filaments containing 12% by weight (ratio of polymer) of titanium oxide in the core was used as the core-sheath type composite fiber. Knitted and dyed in the same manner as No. 1, 200g
A knitted fabric having a fabric weight of / m ² was obtained. The stretch rate of the knitted fabric is 130
%, Weft 92%, and L _b value was 4%. Using the obtained knitted fabric, a white swimsuit was sewn in the same manner as in Example 1. The wearing sensation and color development of the obtained swimwear were evaluated, and the results are shown in Table 1. It was a white swimsuit with excellent wearability and color development.

Example 5 A core-sheath type nylon multifilament having 50 denier and 17 filaments containing 25% by weight of titanium oxide in the core portion (as a polymer ratio) was used as the core-sheath type composite fiber. Knitted in the same manner as 1 and dyed, 202g
A knitted fabric having a fabric weight of / m ² was obtained. The stretch rate of the knitted fabric is 129%,
The weft was 90%, and the L _b value was improved to 3.1%. A white swimsuit is sewn using the obtained knitted fabric, and the results of evaluation of wearing feeling and color development are shown in Table 1 as in Example 1. Although the color developability was slightly reduced, the white swimwear was comfortable to wear.

Example 6 A nylon multifilament of 50 denier and 17 filaments containing titanium oxide in the core portion of 29% by weight (ratio to polymer) was used as the core-sheath type composite fiber.
Knitting and dyeing were carried out in the same manner as in Example 1, and 199 g / m ²
A knitted fabric with a fabric weight was obtained. The expansion rate of the knitted fabric is 129%, weft 91
%, And the L _b value was improved to 2.7%. A white swimsuit is sewn using the obtained knitted fabric, and the results of evaluation of wearing feeling and color development are shown in Table 1 as in Example 1. Although the color developability was slightly reduced, the white swimwear was comfortable to wear.

Example 7 Using the same yarn usage and knitting machine as that used in Example 1, except that the mixing ratio of each yarn was 85% by weight of nylon yarn and 15% by weight of polyurethane elastic yarn, the front shown in FIG. Nylon yarn is arranged on the reed and polyurethane yarn is arranged on the back reed to form a satin structure. After knitting, in the same manner as in Example 1, a white-dyed knitted fabric having a fabric weight of 290 g / m ² was obtained. Knitted fabric elongation is over 261%, 128% weft, L _b value of 2.5%
Met. A white swimsuit was sewn using the obtained knitted fabric.
The wearing sensation and color development of the obtained swimwear were evaluated, and the results are shown in Table 1. It was a white swimsuit with excellent wearability and color development.

Example 8 The same yarn usage and knitting machine as those used in Example 1 were used except that the mixing ratio of each yarn was 88% by weight of nylon yarn and 12% by weight of polyurethane elastic yarn. As shown in FIG. 3, a nylon thread is arranged on the front reed and the middle reed, and a polyurethane thread is arranged on the back reed to form an insertion structure. After knitting, in the same manner as in Example 1, a white-dyed knitted fabric having a basis weight of 342 g / m ² was obtained. The stretch rate of the knitted fabric is 96% warp, 85% weft, L
_{The b} value was 1.8%. A white swimsuit is sewn using the obtained knitted fabric, and the results of evaluation of wearing feeling and color development are shown in Table 1 as in Example 1. In addition, FIG. 4 shows a visual evaluation photograph of a knitted fabric of a swimsuit attached to a paper frame, immersed in water, placed on a black lattice pattern mount on a white background, and photographed. It was a white swimsuit with excellent transparency and color development of the knitted fabric.

Example 9 Knitting was carried out in the same manner as in Example 1 except that 50-denier, 17-filament core-sheath nylon multifilaments containing 3% by weight (ratio to polymer) of titanium oxide in the core were used. Then, dyeing was performed to obtain a white knitted fabric having a basis weight of 205 g / m ² . The stretch rate of the knitted fabric is warp 128%, weft 91%, L
_{The b} value was 7.1%. A white swimsuit is sewn using the obtained knitted fabric, and the results of evaluation of wearing feeling and color development are shown in Table 1 as in Example 1. The produced white swimsuit was good in both transparency and color development.

Example 10 Knitting was performed with the same yarn structure and knitting machine as those used in Example 1, but with the same knitting structure, but with a lower knitting density than in Example 1. After knitting, the fabric was dyed white as in Example 1 to obtain a knitted fabric having a basis weight of 142 g / m ² . The stretch rate of the knitted fabric was 136%, the weft was 94%, and the L _b value was 5.4%.
A white swimsuit is sewn using the obtained knitted fabric, and the results of evaluation of wearing feeling and color development are shown in Table 2 as in Example 1. The produced swimsuit was a white swimsuit which was slightly less transparent than that of Example 1, but was easy to move and had excellent color development.

Example 11 The same yarn usage and knitting machine as those used in Example 1 were used, and the mixing ratio and knitting structure of each yarn were the same as in Example 8,
Knitting was performed with a higher knitting density than in Example 8. After knitting, the fabric was dyed white in the same manner as in Example 1 to obtain a knitted fabric having a basis weight of 381 g / m ² . The stretch rate of the knitted fabric is 68%, weft 64%,
The L _b value was 1.4%. A white swimsuit is sewn using the obtained knitted fabric, and the results of evaluation of wearing feeling and color development are shown in Table 2 as in Example 1. The produced swimsuit was a white swimsuit having high transparency, although it felt a little heavier than that of Example 1.

COMPARATIVE EXAMPLE 1 Except that a nylon multifilament of 50 denier and 17 filaments containing no white pigment was used, the yarn was knitted and dyed in the same manner as in Example 1 to obtain 200 g /
A knitted fabric having a unit weight of m ² was obtained. The stretch rate of the knitted fabric is 130%,
The weft was 91%, and the L _b value decreased to 14.1%. A white swimsuit was sewn using the obtained knitted fabric, and the wearing feeling and color development were evaluated. The results are shown in Table 2. Further, FIG. 5 shows a visual evaluation photograph of a swimsuit taken in the same manner as in Example 8. The obtained swimsuit was a white swimsuit with poor transparency.

Comparative Example 2 A white knitted fabric having a basis weight of 180 g / m ² was obtained by knitting and dyeing in the same manner as in Example 1 except that polyurethane elastic yarn was not used. The stretch ratio of the knitted fabric was 35% in warp and 40% in weft, and the L _b value decreased to 4.7%. A white swimsuit was sewn using the obtained knitted fabric, and the wearing feeling and color development were evaluated. The results are shown in Table 2. The obtained swimsuit was a white swimsuit that was hard to move because of its low elongation, although it had transparency.

Comparative Example 3 Nylon filaments similar to those used in Example 1 and ordinary nylon multifilaments similar to those used in Comparative Example 1 were alternately used in Example 1 one by one. Example 1 set on the front reed of a knitting machine similar to
The same polyurethane elastic yarn as that used in 1 was set on the back reed and the half structure shown in FIG. 1 was knitted. The mixing ratio of each yarn is 40% by weight of titanium oxide-containing nylon thread, 40% by weight of normal nylon thread and 20% by weight of polyurethane elastic thread.
Met. It is dyed white in the same manner as in Example 1, and 198
A knitted fabric having a basis weight of g / m ² was obtained. The stretch rate of the knitted fabric is 132
%, 92% weft, L _b value was 7.4%. A white swimsuit is sewn using the obtained knitted fabric, and the results of evaluation of wearing feeling and color development are shown in Table 2 as in Example 1. The swimwear produced had poor transparency.

[0038]

[Table 1]

[0039]

[Table 2]

[0040]

EFFECTS OF THE INVENTION The method for producing a light-colored swimsuit of the present invention tends to be thin such as white, flesh-colored, yellow, pink, and cream by devising the core-sheath type composite fibers and the knitted fabric structure that constitute the swimsuit. It is possible to provide a light-colored swimsuit which has excellent wear resistance such as anti-transparency and ease of movement even when it is dyed with the above-mentioned color and has a single tailored sewing specification.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of Examples 1 to 6 and 9 of the present invention and Comparative Examples 1 to 3.
Hen organization chart.

FIG. 2 is a knitting structure diagram of Example 7 of the present invention.

FIG. 3 is a knitting structure diagram of Example 8 and Comparative Example 4 of the present invention.

FIG. 4 is a visual evaluation photograph of a knitted fabric according to Example 8 of the present invention.

FIG. 5 is a visual evaluation photograph of the knitted fabric of Comparative Example 1 of the present invention.

[Explanation of symbols]

A1 to An; row of knitting needles F: front reed M: middle reed B: back reed

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location D02G 3/12 D02G 3/12 D04B 21/00 D04B 21/00 B

Claims (5)

[Claims] 1. A multifilament of a core-sheath type composite fiber containing a white pigment in a core and an elastic yarn are knitted with a warp knitting machine, and the content of the multifilament is 50% by weight of the knitted fabric.
A method for producing a light-colored swimwear, which comprises adjusting the above-described adjustment, dyeing the obtained knitted fabric in a light color, and sewing the swimwear. 2. The fabric according to claim 1, wherein the basis weight of the knitted fabric is adjusted to a range of 150 to 350 g / m ² and the elongation of the knitted fabric is adjusted to a range of 70 to 300% in both the warp and weft directions. Method for manufacturing light-colored swimwear. 3. The multifilament comprises 5 to 100 filaments and has a single fiber fineness of 0.5.
The method for manufacturing a light-colored swimsuit according to claim 1 or 2, wherein the method is 10 denier. 4. The core-sheath type composite fiber comprises titanium oxide, zinc white,
At least one or two or more white pigments selected from the group consisting of aluminum oxide, zirconium oxide, calcium oxide, and magnesium oxide are contained in the core portion in an amount of 3 to 30% by weight based on the polymer forming the core-sheath type composite fiber. The method for manufacturing a light-colored swimsuit according to claim 1, 2, or 3, wherein 5. The method for producing a light-colored swimsuit according to claim 1, 2, 3 or 4, wherein the L _b value of the knitted fabric is adjusted to a range of 0.6 to 8%.