JPH0949107A - Swimming suit for race - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a swimming suit for race which lowers the surfacefrictional resistance of the swimming suit in water and inhibits water from staying between the suit and the body of the racer. SOLUTION: This swimming suit is made of stretchable fabrics and waterrepellent parts 2 and water-not-repellent parts are arranged alternately in stripes at least a part of the suit so that the water-repellent parts may come to the outer surface of the swimming suits and the stripes are substantially arranged parallel with the body length direction Y1 -Y2 , when the suit is put on.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swimming race swimsuit, in which the water-repellent portion is provided on the surface of the swimsuit to reduce the surface frictional resistance in water, and the non-water-repellent portion is provided to drain water. Relates to a swimming suit.

[0002]

2. Description of the Related Art The most required function of a swimsuit is how to reduce the surface frictional resistance of the swimsuit in water that occurs during swimming. Various techniques have been proposed to reduce the surface frictional resistance of swimsuits. . For example, the technology of applying water-repellent treatment to both the front and back sides of the fabric that forms the swimsuit is Shoukai 56-2361.
No. 2, which discloses a technique in which the surface of the cloth is coated with a water-repellent film and the back surface is made hydrophilic.
Issue. In addition, a swimsuit characterized in that a narrow concave portion or a convex portion is provided in the body length direction when wearing a swimsuit is disclosed in Japanese Utility Model Publication No. Sho 63-39206 for the purpose of promptly releasing the resistance of water received during swimming. Therefore, a swimsuit in which a non-water-permeable sheet is attached to the part adjacent to the opening of the swimsuit for the purpose of rectifying the surface of the swimsuit at the time of swimming is actually fair 5-3.
No. 8006. Furthermore, for the purpose of improving the quick-drying property of the fabric itself of the swimwear, a technique of using a knitted fabric having a silicone-based water repellent agent or the like printed in stripes on the back surface of the fabric for swimwear is disclosed in Japanese Utility Model Publication No. 6-79786. There is.

[0003]

As described above, the swimming race swimsuit has been conventionally improved in various ways, but there are the following problems to be solved. First of all, the swimsuits disclosed in Japanese Utility Model Publication No. 56-23612 and Japanese Utility Model Publication No. 60-13913, which have a water-repellent finish on the entire surface,
Although the effect of lowering the surface friction resistance of the swimsuit in water is recognized, the water permeability and breathability of the swimsuit itself is significantly reduced, so during swim races, the swimsuit and body can be worn through openings such as the neckline, armpits and back. There was a problem that the water and air bubbles that entered during the period would stay as it was, and as a result, the swimsuit itself would become wavy, which would rather increase the resistance.

Next, in the swimsuit disclosed in Japanese Utility Model Publication No. 63-39206, which has a narrow concave portion or convex portion extending in the body length direction, the vertical stripes on the swimsuit surface quickly escape the stretching received from water. Although effective, the fabric itself was conventional and had no effect of reducing the frictional resistance on the surface of the swimsuit. In addition, the swimsuit disclosed in Japanese Utility Model Publication No. 5-38006, in which a non-breathable water-permeable sheet is attached to a portion of a swimsuit that is adjacent to the collar, the side or the opening of the back, has the effect of preventing water from entering from the portion. However, since a resin sheet made of vinyl chloride, synthetic rubber, polyurethane, silicone, etc. is used as the non-breathable water-permeable sheet, it is said that the chest and buttocks are too tense to provide a comfortable wearing feeling. There was a problem.

Further, the knitted fabric disclosed in Japanese Utility Model Laid-Open No. 6-79786 has a striped water-repellent print, but when used in a swimsuit, the water-repellent printed surface is used on the back side, that is, on the human body side. Therefore, although the swimsuit has improved quick-drying property due to the water-repellent print, it does not contribute to the reduction of the surface frictional resistance of the swimsuit in water during swimming.

An object of the present invention is to solve the above-mentioned problems of the conventional swimwear, to reduce the surface friction resistance of the swimsuit in water, to keep the feeling of wearing, and to compete with the swimwear. An object of the present invention is to provide a swimming race swimsuit with improved drainage, in which water does not easily stay between the body of the wearer.

[0007]

A swimsuit according to the present invention is a swimsuit made of stretchable fabric, wherein at least a part of the swimsuit has striped water-repellent portions and non-water-repellent portions. The water-repellent portion of the area is used as the front side of the swimsuit, and a stripe composed of a water-repellent portion and a non-water-repellent portion is arranged so as to extend substantially in the length direction when the swimsuit is worn. And

In the swimming suit according to the present invention, stripes composed of a water-repellent portion and a non-water-repellent portion may be arranged over the entire swimsuit so as to extend in the body length direction when the swimsuit is worn, or this portion may be used. Part of, that is, the main part,
The other part may be composed of a region where a water-repellent part is provided on the entire surface, or a stripe consisting of a water-repellent part and a non-water-repellent part may be extended at a desired angle with respect to the length direction when wearing a swimsuit. You may comprise by the area | region arrange | positioned at. Further, the three areas, that is, the area where the stripe extends in the body length direction, the area where the water repellent portion is provided on the entire surface, and the area where the stripe extends at a desired angle with respect to the body length direction are mixed in one swimsuit. May be. Arrangement position of the three areas in the swimsuit, the number is the requirements of the swimsuit to be used,
That is, it can be arbitrarily selected according to the body shape of the athlete, usage conditions, and the like.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The swimming race swimwear according to the present invention can be fitted to the human body by using elastic cloth. In addition, by providing water-repellent and non-water-repellent parts in stripes extending in the length direction, the water-repellent property of the water-repellent agent that repels water when used in water is used to reduce the surface friction resistance of swimwear in water. In addition to contributing directly to the water, reduce the invasion of water from the surface of the fabric during swimming,
It also helps drain the water that has entered the swimsuit from the non-water repellent portion to the outside of the swimsuit without staying between the swimsuit and the human body. It is important that the water-repellent part is formed on the surface of the cloth which is the outside when the swimsuit is used, and it is preferable that the water-repellent part is formed like a film at that time. Further, the water repellent agent forming the water repellent portion may reach the back surface of the cloth.

The water-repellent portion is required to be provided on the surface of the swimsuit in a stripe shape extending substantially in the body length direction in order to reduce the surface frictional resistance in water, and the swimsuit will be described in detail in Examples below. The arrangement of water-repellent portions in a horizontal stripe, a checkerboard pattern or a polka dot pattern that obstructs the flow of water on the surface is not preferable because it does not help to sufficiently reduce the surface frictional resistance in water. The direction of the stripes must be selected based on the flow of water flowing along the human body, and from this point of view, the direction of the above-mentioned stripes is the length of the body part of the swimsuit that corresponds to the side or ridge of the human body. It is more preferable to select by providing a predetermined angle with respect to the direction.

The width of the water-repellent portion and the non-water-repellent portion is from 1 mm from the viewpoint of manufacturing technology and the effect of the swimwear.
It can be arbitrarily set within the range of 50 mm, but the most preferable range from the viewpoint of action and effect is 5 mm to 15 mm.
It is. Sewing work is required when making a swimsuit. Therefore, if the width of the water-repellent portion is 50 mm or more, the water-repellent portions or the non-water-repellent portions may be sewn together depending on the design, and as a result, water repellency and water drainage cannot be ignored. This creates an uneven portion, which is not preferable. On the contrary, if the width of the water-repellent portion is 1 mm or less, it becomes difficult to stably produce the water-repellent portion having a width of 1 mm or less when performing the water-repellent treatment by the print prescription, which is not preferable. From the viewpoint of production efficiency, it is preferable that the width of the water repellent portion and the width of the non-water repellent portion are the same.

The area of the water repellent part is 50% of the total surface area of the swimsuit.
It is preferably set to ˜95%. The water repellent area is 95
When it is more than%, it is difficult for water that has entered through the opening to escape to the outside of the swimsuit, and the swimsuit swells or flutters, which increases resistance. vice versa,
If the area of the water-repellent part is 50% or less, there is no problem with water drainage, but the effect of reducing the frictional resistance on the surface of the swimsuit is reduced to a level that is not much different from ordinary swimwear, and the desired effect is inferior. Will be.

The material of the fabric used in the swimming suit according to the present invention is a synthetic fiber multifilament yarn such as polyamide, polyester or polypropylene, or these synthetic fiber multifilament yarn and polyurethane elastic yarn. Knitting or knitting consisting of knitting,
Textiles can be used. In particular, in swimsuits, ease of movement is often emphasized, and as a material form, a knitted fabric formed by interlacing synthetic fiber multifilament yarns and polyurethane elastic yarns is more preferable.

As the knitted form, any of a circular knitted fabric such as a single circular knitted fabric, a double circular knitted fabric, and a warp knitted fabric such as tricot fabric and Russell fabric can be used. The tricot fabric is more preferable from the viewpoints of stretchability, thinness of fabric, etc. This is dyed and finished by a usual dyeing processing method to obtain a fabric for water repellent processing which is the next processing.

As the water repellent used in the swimming suit according to the present invention, various treatment agents available under the name of water repellent such as silicone water repellent and fluorine water repellent can be used. However, the treatment agent used for the water-repellent part of the swimming suit of the present application may be any treatment agent as long as it substantially reduces the surface frictional resistance of the swimsuit in water. It is not limited to the agent.

As a method for separating the water repellent agent into a water repellent portion and a non-water repellent portion on the surface of the cloth and applying the water repellent agent in a striped pattern, a generally industrialized print recipe may be used. A roller printing machine, an automatic screen printing machine, a hand screen printing machine, or the like can be used as, and is not particularly limited. The amount of water repellent applied to the cloth varies depending on the basis weight, thickness, water repellent processed area, type of water repellent, etc., but is 5 to 20 g.
/ M ² is preferred. It is important that the water-repellent portion is provided on the surface of the swimsuit, and thus, another arbitrary treatment agent is provided on the surface of the fabric in a stripe shape, and the water-repellent agent is further applied on the stripe. May be adopted.

After attaching the water repellent to the surface of the fabric, it is preferable to carry out a post-treatment such as a heat treatment for the purpose of accelerating the cross-linking reaction to fix the water repellent to the fabric in accordance with the usual water repellent treatment. The heat treatment condition for accelerating the crosslinking reaction may be a temperature and a time suitable for the water repellent used and the type of the dough to be treated, and usually 120 to 180 ° C. for 1 to 2 minutes. The heat treatment for the purpose of accelerating the cross-linking reaction may be performed using a normal pin tenter or the like.

Next, the present invention will be described with reference to the accompanying drawings showing an example of a swimsuit according to the present invention. FIG. 1 shows an example of a swimsuit according to the present invention, FIG. 1 (A) is a front view, and FIG.
(B) is a rear view. In the swimming suit 1 shown in FIG. 1, both the front body shown in FIG. 1 (A) and the back body shown in FIG. 1 (B) are substantially along the surface thereof along the body length direction indicated by Y ₁ -Y ₂ . A water-repellent portion 2 and a non-water-repellent portion 3 are provided in a stripe shape (however, the water-repellent portion 2 and the non-water-repellent portion 3 are shown schematically in FIG. 1, and the width in the figure is Actual width is different). When manufacturing a swimsuit, the front body and the back body are cut from a striped water-repellent material, and the side portions 4a, shoulders 4b and inseam 4c are sewn.

[0019]

The present invention will be described in detail with reference to the following examples. (Example 1) First, a water repellent printed cloth was prepared in which the area ratio of the water repellent portion to the entire fabric was changed to 0%, 40%, 50%, 80%, 95%, 98%, and water repellent was prepared. The partial area ratio and the drainage property were compared. Dough using Toray Industries Co., Ltd. polyester yarn "Tetron (registered trademark)" 40 ^d / 36 ^f
And use the Du Pont-Toray Co., Ltd. polyurethane elastic yarn "operon (registered trademark)" 40 ^d, polyester yarn in front reed at 32 two gauge reed single tricot machine, polyester yarn polyurethane yarn to the back reed 80
% And polyurethane yarn 20% to knit into a half structure, and the fabric was coated with the water repellent at the above-mentioned area ratio to obtain a sample. The diameter of the obtained sample is 2
Cut into a 0 cm circular sample with a diameter of 2 as shown in Figure 2.
A circular sample 32 was folded inside a 2 cm glass funnel 31 like a normal filter paper, and the printed surface was placed in contact with the inside of the funnel 31. Next, 300 cc of distilled water 33 was put on the circular sample, and the time T (second) until the distilled water was completely drained was measured and displayed as an average value of 3 sheets. Time T required for this drainage
The smaller (seconds) means that, when swimming in a swimsuit, the water that has entered between the swimsuit and the body does not stay and easily escapes to the outside, which means that the swim is easier. Also, it goes without saying that it leads to improvement of recording and alleviation of fatigue. The evaluation results are shown in Table 1.

[0020]

[Table 1]

No. 1 non-water repellent fabric and No. 3 50
% Compared with water repellent fabric, water drainage is from 7 seconds to 1
It has increased to 5 seconds. On the other hand, comparing the No. 3 50% water repellent fabric with the No. 2 40% water repellent fabric, the drainage rate was slightly faster by 1 second, despite the 10% lower processing rate. It ’s just Therefore, the ratio of water repellent parts is 50
It can be presumed that if the water content is less than 100%, the frictional resistance on the surface of the swimsuit will increase, although the water drainage property will not change so much.

When the area of the water repellent portion was 95%, the water drainage property was 50 seconds, but when it increased to 98%, the water drainage property was drastically reduced to 120 seconds. Therefore, when the area of the water-repellent portion exceeds 95%, the water that has entered between the swimsuit and the body is retained, and the swimsuit itself swells or flutters, which rather increases resistance. Therefore, in Table 1, sample Nos. 3, 4, and 5 are fabrics within the scope of the present invention, and sample Nos. 1, 2, and 6 are fabrics outside the scope of the present invention.

Example 2 Next, the value of the surface frictional resistance due to the friction between running water and the cloth in the cloth state was measured, and the effect of the water repellent portion was investigated. As shown in FIG. 3, the surface frictional resistance testing device 34 for the dough has upper ends 38a, 3 respectively.
8b, which can freely move in the horizontal direction (arrow B) 37
a glass plate 35 (length 30
The test dough 41 is attached to both sides (00 mm, width 600 mm) and is settled in the circulating water channel 36 to a predetermined depth. The lower ends of the metallic columns 39 are fixed to the glass plate 35, and the upper ends of the columns 39 are fixed to the ceiling. Prop 3
A strain gauge 40 is installed in the upper part of the unit 9. Therefore, the magnitude of the resistance that the surface of the cloth 41 attached to the glass plate 35 receives from the water flow flowing in the direction of arrow A is measured by a dynamic strain gauge as an electric signal from the strain gauge 40, and is transmitted via an A / D converter. Displayed and recorded on the personal computer.

The following three types of fabrics were used as test samples, and the apparatus shown in FIG. 3 was used to measure the surface frictional resistance of the fabric in running water. The results are shown in Table 2. Sample NO.1: Conventional water-repellent fabric without water repellent treatment Sample NO.2: Fabric with stripe-shaped water repellent parts parallel to the direction of running water 50% of the area ratio Sample NO.3: All surfaces Fabric with water repellent finish

[0025]

[Table 2]

As is clear from Table 2, the resistance of the fabric NO.2 having the 50% striped water-repellent portion is reduced by about 8% as compared with the fabric NO.1 which is not subjected to the water-repellent finish. ,
Fabric No.3 with water repellent finish on all surfaces has reduced resistance by about 9%. From these test results, it was found that the surface friction resistance can be reduced by subjecting the fabric surface to the water repellent treatment, and the surface friction resistance can be further reduced as the surface ratio increases.

Next, a swimsuit using a fabric within the scope of the present invention (Example 3) and a swimsuit using various fabrics outside the scope of the present invention (Comparative Examples 1 to 7) were prepared, and the human body model shown in FIG. Resistance values were compared using a resistance test apparatus for swimwear according to.

As shown in FIG. 4, the resistance test device 42 for a swimsuit based on a human body model includes a human body model 43 (height 1630 mm) supported by two columns 44a and 44b extending from a connecting rod 45, and a swimsuit for testing. 49 is put on and settles in the circulating water tank 48 to measure the resistance. To measure the resistance value of the swimsuit, subtract the measured value with and without the test swimsuit 49 worn. The connecting rod 45 is fixed to the ceiling by two metallic columns 46a and 46b, while strain gauges 47a and 47b are installed on the metallic columns 46a and 46b, respectively.
Therefore, the magnitude of resistance received by the human body model 43 wearing the swimsuit 49 from the water flow flowing in the direction of the arrow A is measured by a dynamic strain gauge as an electric signal from the strain gauges 47a and 47b, and is measured via an A / D converter. Displayed and recorded on the personal computer.

(Example 3) The same knitted tricot fabric of polyester yarn and polyurethane yarn as the fabric used in Example 2 was dyed red by the usual dyeing method of the knitted fabric of polyester yarn and polyurethane yarn. A knitted fabric having a basis weight of 220 g / m ² was obtained and used as a fabric for Example 3.

A fluorinated water repellent was printed on one side of this cloth by a hand screen printing machine in a stripe shape having a width of 10 mm (area ratio of water repellent portion: 50%, stripe width of non-water repellent portion: 10 mm). A swimsuit for women was prepared by using this processed cloth with stripes arranged in the length direction and using the printed surface so that the surface was printed, and the swimwear of Example 3 was obtained.

(Comparative Example 1) The same fabric as that used in Example 3 was used, and the same fabric as in Example 3 was used, using a fabric not subjected to the water repellent treatment (area ratio of water repellent portion: 0%). Figure 5
The swimsuit 21 shown in (A) was prepared and used as the swimsuit of Comparative Example 1.

(Comparative Example 2) The same fabric as that used in Example 3 was used, and a treated fabric (water-repellent portion area ratio 100%) in which one surface of this fabric was subjected to water-repellent treatment was used. Then, a water-repellent surface was used so as to be the front side, and a swimsuit 22 having the same shape as that of Example 3 and shown in FIG.

(Comparative Example 3) Using the same cloth as that used in Example 3, a fluorine-based water repellent agent having a width of 10 mm (area ratio of water repellent portion: 5) was formed on one surface of the cloth by the same method.
0%, the stripe width of the non-water repellent portion 10 mm) was printed. A swimsuit (not shown) having the same shape as that of Example 3 was prepared by using the textured fabric in which stripes were arranged in the body length direction and the printed side was used as the back side. did.

(Comparative Example 4) The same material as that used in Example 3 was used, and a fluorine-based water repellent agent having a diameter of 20 mm (area ratio of water repellent portion: 50%) was applied to one surface of the material by the same method. ) Printed into a polka dot pattern. A swimsuit 23 having the same shape as that of Example 3 and shown in FIG. 5C was prepared by using this processed fabric so that the printed surface was face up, and the swimsuit of Comparative Example 4 was obtained.

(Comparative Example 5) Using the same fabric as that used in Example 3, one side of this fabric was subjected to water repellent finishing (water repellent portion area ratio 100%). A swimsuit (not shown) having the same shape as that of Example 3 was prepared by using the water-repellent surface as the back, and the swimsuit of Comparative Example 5 was obtained.

(Comparative Example 6) The same fabric as that used in Example 3 was used, and a fluorine-based water repellent agent was applied to one side of this fabric by the same method as in Example 3 to measure 20 mm on one side (for the water repellent portion). Printed into a checkered pattern with an area ratio of 50%). A swimsuit 24 having the same shape as that of Example 3 and shown in FIG. 5D was prepared by using this processed fabric so that the printed surface was the front side, and the swimsuit of Comparative Example 6 was obtained.

(Comparative Example 7) Using the same material as that used in Example 3, a fluorine-based water repellent agent having a width of 10 mm (area ratio of water repellent portion: 5) was formed on one side of the cloth by the same method.
0%, the stripe width of the non-water repellent portion 10 mm) was printed. This fabric has stripes arranged in a direction orthogonal to the body length direction, and the printed surface is used so that it is on the front side.
The swimsuit 25 shown in (E) was created and used as the swimsuit of Comparative Example 7.

The swimsuits of Example 3 and Comparative Examples 1 to 7 were worn on the mannequins of the resistance test apparatus shown in FIG. 4, and the average speed of the women's 100m freestyle event at the Olympic competition was 1.8m /. The resistance value in water was obtained by measuring the value of the strain gauge in s running water. Table 3 shows the obtained results.

[0039]

[Table 3]

As a result, comparing Example 3 which is the swimming race swimsuit according to the present invention with Comparative Example 1 which is the conventional swimming race swimsuit, the resistance of Example 3 is reduced by about 10%. You can see that It is considered that this is because the water repellency of the striped water repellent portion provided in the body length direction on the surface of the swimsuit contributes to the reduction in resistance.

Example 3 which is a swimsuit according to the present invention,
Comparing with Comparative Example 2 in which the entire surface is treated to be water repellent, Comparative Example 2 has a resistance increase of about 15% as compared with Example 3, and further has a larger resistance than Comparative Example 1 which is a conventional product. This is because the water-repellent finish applied to Comparative Example 2 contributes to the reduction in resistance, but the water drainage property is extremely poor.
It can be construed that water and air bubbles that have entered the swimsuit through the openings such as the neckline and the back cannot escape to the outside, which causes a wavy phenomenon near the abdomen and buttocks, which on the contrary increases the resistance compared to the conventional product.

Embodiment 3 which is a swimsuit according to the present invention,
Comparative example 3 in which the back surface of the swimsuit is water-repellent in stripes
Comparing with, the resistance of Comparative Example 3 is increased by about 14% from that of Example 3, and further, the resistance is larger than that of Comparative Example 1 which is a conventional product. This is because the water-repellent finish applied to Comparative Example 3 is on the back surface, and although it does not contribute to the reduction in resistance at all, only the water drainage property is deteriorated.

Example 3 which is a swimsuit according to the present invention,
Comparing with Comparative Example 4 in which the surface of the swimsuit is subjected to a water-repellent pattern in a polka dot pattern, Comparative Example 4 has increased resistance by about 3% as compared with Example 3, and the resistance is slightly smaller than Comparative Example 1 which is a conventional product. .
It can be said that the water-repellent treatment applied to Comparative Example 4 contributes to the reduction of resistance to some extent, but since there is a portion facing the water flow perpendicularly, the striped water-repellent portion of Example 3 is present. It is considered to be inferior to.

Example 3 which is a swimsuit according to the present invention,
Comparing with Comparative Example 5 in which the entire back surface of the swimwear is subjected to water repellent treatment, the swimwear of Comparative Example 5 has about 25% higher resistance than that of Example 3, and the increase in the resistance value is the same in all Comparative Examples. Is the maximum. Even if a water-repellent part is provided on the back side, this does not help to reduce the resistance to water flow, and since there is no water drainage, water and air bubbles that have entered the swimsuit will not escape to the outside, thereby causing abdomen and buttocks. It can be construed as a drastic waving phenomenon at and the resistance increased significantly.

Example 3 which is a swimsuit according to the present invention,
Comparing Comparative Example 6 in which the surface of the swimsuit is water-repellent in a checkered pattern and Comparative Example 7 in which stripe water-repellent treatment is applied in the direction perpendicular to the body length direction, respectively, with respect to Example 3. The resistance has increased by about 5% and about 3%. It can be said that, like Comparative Example 4, the water-repellent treatment applied to the surface of the swimsuit contributes to the reduction of the resistance to some extent, but since there is a portion facing the water flow perpendicularly, Example 3 It is considered to be inferior to the striped water-repellent finish.

From the above results, the water-repellent part to be applied to the swimsuit is
It has been proved that the resistance to water flow can be reduced most effectively when applied to the surface of a swimsuit in the form of stripes extending in the length direction.

(Examples 4 to 7 and Comparative Examples 8 and 9) Next, in order to confirm the performance when the swimsuit according to the present invention was actually used for swimming, 12 female athletes were subjected to actual wear test. .
The swimsuit used in this test had two patterns, and a high neck type (pattern A) swimsuit 4 shown in FIG. 6 and a conventional normal type (pattern B) swimsuit 5 shown in FIG. 7 were used. A stripe-shaped water-repellent portion extending in the direction is provided. Area ratio of water repellent part is 50%
(Examples 4, 5), 70% (Examples 6, 7) and 100
% (Whole surface water repellent, Comparative Examples 8 and 9). The results obtained are shown in Table 4.

[0048]

[Table 4]

The following are criteria for water drainage, ease of movement, water drainage during swimming, and comprehensive evaluation in this test. <Water drainage> ◎: No retention at all, ○: A little retention, Δ:
Stay, ×: Stay and wavy. <Ease of movement> ◎: Very easy to move, ○: Easy to move, Δ: Slightly hard to move, ×: Hard to move. <Drainability during swimming> ◎: Drains well and can swim very lightly, ○: Feels good drainage, Δ: Does not feel drainage, ×: Poor drainage and feels heavy. <Comprehensive evaluation> ◎: Very suitable for swimming suit, ○: Suitable for swimming suit, Δ: Normal, ×: Not suitable for swimming suit.

As a result of this test, when the area ratio of the water-repellent portion was 100% (Comparative Examples 8 and 9), the water draining property at the time of swimming was very good, and most of the players felt that the feeling of swimming was light. However, conversely, there are some athletes who have poor drainage and wavy phenomenon near the abdomen, which is a bad overall evaluation.

The high-neck type pattern A has a better evaluation of water drainage than the normal type pattern B. This is because in the case of the pattern A, less water penetrates from the neck. Also, in pattern B, if the area ratio of the water-repellent portion is set to about 50%, it is understood that the water drainage property can be improved. On the contrary, in the evaluation of the ease of movement, it can be seen that the pattern B in which the neck is not clogged is superior.

Whether the pattern A or the pattern B is a swimsuit in which the area ratio of the water-repellent portion is 50% or 70%, the overall evaluation is high.

(Embodiment 8) FIG. 8 shows a modified embodiment of the swimming suit according to the present invention. FIG. 8 (A) is a front view, and FIG. 8 (B).
The rear view is shown in. As shown in FIG. 8, the swimming race swimsuit 6 of Example 8 is a swimsuit made of elastic fabric, and the water repellent portion 2 and the non-water repellent portion 3 are provided on the surface of the swimsuit in a stripe shape extending in the length direction. , Buttocks 8a, 8b and crotch portions 7a, 7b
A cloth having a water-repellent portion 2 and a non-water-repellent portion 3 in a stripe shape partially extending at a desired angle with respect to the body length direction is used. In the actual swimming competition, the water flowing near the buttocks and the crotch flows at a certain angle with respect to the body length direction, so it is better to provide a striped water-repellent portion in parallel with that direction. It is effective. The stripes of the buttocks 8a, 8b and the crotch portions 7a, 7b are preferably printed at the same time as the stripes extending in the body length direction during the printing process, but the present invention is not limited to this, and the same printed cloth is used for sewing. You may change the direction of a stripe.

(Embodiment 9) FIG. 9 shows another modified embodiment of the swimming suit according to the present invention. FIG. 9 (A) is a front view and FIG.
A rear view is shown in (B). As shown in FIG. 9, the swimming race swimsuit 9 of Example 9 is a swimsuit made of elastic material, and has a striped water-repellent portion 2 and a non-water-repellent portion extending in the body length direction on the front surface of the swimsuit. Region 1 consisting of 3
2 and a region 11 consisting of only a water repellent portion are provided. With this structure, the water-repellent portion can be maximized to reduce the resistance, and the drainage can be ensured by the stripe-shaped water-repellent portion 2 and the non-water-repellent portion 3. As shown in the rear view of FIG. 9B, the water-repellent portion 2 is formed in stripes at an angle of a desired direction with respect to the body length direction with respect to the region 11 formed of the water-repellent portion.
The regions 13a and 13b provided with may be arranged as illustrated.

[0055]

The swimsuit according to the present invention has the water-repellent portion and the non-water-repellent portion provided on the surface of the swimsuit, so that the surface frictional resistance caused by friction with water is reduced and the surface of the fabric during swimming is reduced. The invasion of water into the swimsuit is reduced, and the invaded water escapes to the outside of the swimsuit more quickly than the non-water repellent portion. Therefore, the swimsuit does not swell or flutter like a swimsuit with the entire surface subjected to water-repellent treatment, resulting in a resistance reducing effect. Further, the water repellent portion of the present invention,
Since the water-repellent agent is attached by printing, the portion also has elasticity, excellent fit and exercise functionality, and a comfortable wearing feeling can be obtained.

[Brief description of drawings]

FIG. 1 is a view showing a preferred example of a swimming race swimsuit according to the present invention, FIG. 1 (A) is a front view and FIG. 1 (B) is a rear view.

FIG. 2 is a cross-sectional view showing an apparatus for evaluating the drainage property of a cloth used for a swimsuit.

FIG. 3 is a schematic view illustrating the structure of a fabric surface friction resistance test device.

FIG. 4 is a schematic diagram illustrating the structure of a resistance test device for a swimsuit.

FIG. 5 is a diagram showing the surface condition of various swimwear used as a comparative example of the swimming race swimwear of the present invention.

FIG. 6 is a front view showing an example of a high neck type (pattern A) competitive swimming suit of the present invention.

FIG. 7 is a front view showing an example of a normal type (pattern B) competitive swimming suit of the present invention.

FIG. 8 is a view showing a modified embodiment of the swimming suit of the present invention, FIG. 8 (A) is a front view and FIG. 8 (B) is a rear view.

FIG. 9 is a view showing another modified embodiment of the swimming race swimsuit of the present invention, FIG. 9 (A) is a front view and FIG. 9 (B) is a rear view.

[Explanation of symbols]

 1, 4, 5, 6, 9 ... Swimming swimsuit (present invention) 2 ... Water repellent portion 3,11 ... Non-water repellent portion 21, 22, 23, 24, 25 ... Swimming race swimsuit (comparative example) 31 ... Glass funnel 40, 47a, 47b ... Strain gauge

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Mr. Niwa, 1-1, Oe, Otsu City, Shiga Toray Co., Ltd. Seta Factory (72) Inventor, Ichiro Ozaki 3-3, Nakanoshima, Kita-ku, Osaka City, Osaka Prefecture No. 3 Toray Co., Ltd. Osaka Plant

Claims (3)

[Claims] 1. A swimming race swimsuit made of stretchable fabric, wherein at least a part of the swimsuit is provided with a water-repellent portion and a non-water-repellent portion in stripes, and the water-repellent portion of the area. On the front side of the swimsuit, and a striped swimsuit comprising a water-repellent portion and a non-water-repellent portion is arranged so as to extend substantially in the length direction when the swimsuit is worn. 2. A striped water-repellent portion and a non-water-repellent portion are provided in at least one region, the water-repellent portion of the region being the front side of the swimsuit, and the water-repellent portion and the non-water-repellent portion. The swimsuit according to claim 1, wherein the stripes are further arranged and used so as to extend at a desired angle with respect to the body length direction when the swimsuit is worn. 3. The swimming race according to claim 1, wherein at least one region having a water repellent portion on the entire surface is further arranged with the water repellent portion on the front side of the swimsuit. Swimwear.