JP7465614B2 - shirt - Google Patents

Description

The present invention relates to a shirt.

Conventionally, shirts designed to correct the wearer's posture are known.

For example, Patent Document 1 describes a shirt in which a stretchable member is attached to the base fabric of the back panel so that it can cross the wearer's left and right shoulder blades. With this shirt, the left and right contraction of the stretchable member draws the left and right shoulder blades together, correcting the wearer's posture.

International Publication No. 2019/017204

However, the shirt in Patent Document 1 has a problem in that the front body shifts out of position due to the stretching of the elastic member caused by the wearer's movements. In particular, when the wearer plays sports such as golf, the elastic member stretches due to movements such as torso rotation, causing the front or back body to slide up and shift out of position.

In addition, conventional shirts designed to correct posture, such as the shirt described in Patent Document 1, have elastic members made of rubber components, and are not particularly water-absorbent. For this reason, especially in wearers who play sports, sweating is likely to occur at the joints of the elastic members, causing discomfort when worn.

In view of the above, the present invention aims to provide a shirt that can correct the wearer's posture while preventing misalignment when worn, thereby reducing discomfort when worn.

The shirt according to the present invention comprises:
It has a front body and a back body,
The front body and the back body have a highly elastic portion having a stretch rate of 100% or more in the horizontal direction,
The highly elastic portion includes a first highly elastic portion provided on the rear body and covering the left and right shoulder blades of the wearer, and a second highly elastic portion provided on the front body and extending in the width direction,
The second highly elastic portion is formed to have a vertical length shorter than that of the first highly elastic portion, and both ends of the second highly elastic portion are joined to the first highly elastic portion,
The highly elastic portion exhibits a water absorption speed of 60 seconds or less.

With this configuration, the first highly elastic portion and the second highly elastic portion, which exhibit the above-mentioned specified elongation rate, work together to contract toward the wearer, thereby preventing the garment from shifting out of position when worn.
In addition, by joining the second highly elastic section to the first highly elastic section, the first highly elastic section is prevented from shifting in position, and the first highly elastic section can be disposed in a position suitable for posture correction. Furthermore, since the second highly elastic section is formed to have a shorter vertical length than the first highly elastic section, the posture correction effect caused by the contraction of the first highly elastic section is less likely to be hindered by the second highly elastic section.
Moreover, since the highly elastic portion exhibits a water absorption speed of 60 seconds or less, the material has excellent water absorption properties and reduces discomfort such as stuffiness when worn.
As described above, according to the present invention, a shirt is provided that can correct the wearer's posture while suppressing positional shifting when worn, thereby suppressing discomfort when worn.

In addition, the shirt according to the present invention preferably comprises:
The first highly elastic portion extends from the upper end to the center in the vertical direction,
The second highly elastic portion has a band shape extending in the center in the up-down direction,
Both end portions of the second highly elastic portion are joined to a lower end portion of the first highly elastic portion.

With this configuration, the first highly stretchable section extends from the upper end to the center of the back body, making it easier to position the first highly stretchable section in an appropriate location for posture correction. In addition, both ends of the second highly stretchable section are joined to the lower end of the first highly stretchable section, making it less likely that the posture correction effect caused by the contraction of the first highly stretchable section will be hindered.

In addition, the shirt according to the present invention preferably comprises:
The highly elastic portion exhibits an elongation recovery force of 0.5 N or more when elongated by 30%.

With this configuration, the high-elasticity section has an elongation recovery force of 0.5 N or more when stretched 30%, which further reduces misalignment when worn and provides excellent posture correction.

In addition, the shirt according to the present invention preferably comprises:
The highly elastic portion exhibits breathability of 20 cm ³ /cm ² ·s or more.

According to such a configuration, the highly elastic portion exhibits air permeability of 20 cm ³ /cm ² ·s or more, so that discomfort during wearing is further suppressed.

As described above, the present invention can provide a shirt that corrects the wearer's posture while preventing misalignment when worn, thereby reducing discomfort when worn.

FIG. 1 is a front view of a shirt according to one embodiment. FIG. 2 is a rear view of the shirt of FIG. 1. FIG. 2 is a side view of the shirt of FIG. 1.

Below, we will explain a shirt according to one embodiment of the present invention with reference to the drawings.

As shown in Figures 1 to 3, the shirt 1 according to this embodiment is a short-sleeved T-shirt and includes a front body 1a that covers the front of the wearer, a back body 1b that covers the back of the wearer, a pair of sleeves 1c that cover the left and right upper arms of the wearer, and a neck rib 1d that surrounds the wearer's neck. In the following, the length direction of the shirt 1 will be referred to as the up-down direction or the vertical direction, and the direction perpendicular to the length direction will be referred to as the width direction or the horizontal direction.

The front body 1a has a pair of side edges 11a that extend in the vertical direction. Each side edge 11a has an armhole forming end 111a for forming an armhole. The armhole forming end 111a is joined to the sleeve portion 1c. A neck rib 1d is joined to the upper end of the front body 1a.

The back body 1b has a pair of side edges 11b that extend vertically. Each side edge 11b has an armhole forming end 111b for forming an armhole. The armhole forming end 111b is joined to the sleeve portion 1c. A neck rib 1d is joined to the upper end of the back body 1b.

Each of the front body 1a and the back body 1b is composed of a high-stretch section H made of a stretch fabric that exhibits high elasticity, and a low-stretch section L made of a low-stretch fabric that exhibits lower elasticity than the stretch fabric.

In the shirt 1 of this embodiment, the first highly stretchable portion H1 formed on the back body 1b plays a major role in correcting the wearer's posture. Specifically, the first highly stretchable portion H1 contracts to bring the wearer's left and right shoulder blades closer together, thereby arching the wearer's chest and correcting the hunched posture. Meanwhile, the second highly stretchable portion H2 formed on the front body 1a supports the first highly stretchable portion H1 from below and assists the function of the first highly stretchable portion H1. The first low stretchable portion L1 formed on the front body 1a is disposed to face the first high stretchable portion H1, so that the first low stretchable portion L1 does not impede the above-mentioned function of the first highly stretchable portion H1.

The front body 1a has, as low-stretch parts L, a first low-stretch part L1 that covers the wearer's left and right shoulders to the chest, and a second low-stretch part L2 that covers the wearer's abdomen. The front body 1a also has, as high-stretch parts H, a band-shaped second high-stretch part H2 formed between the first low-stretch part L1 and the second low-stretch part L2.

The first low-stretch section L1 extends from the upper end of the front body 1a to the vertical center of the front body 1a. The first low-stretch section L1 forms part of the upper edge and side edge of the front body 1a. The second low-stretch section L2 extends from the vertical center of the front body 1a to the lower end of the front body 1a. The second low-stretch section L2 forms part of the side edge and lower edge of the front body 1a.

The second highly elastic portion H2 extends in the width direction. More specifically, the second highly elastic portion H2 extends along the lower end of the wearer's chest. The second highly elastic portion H2 extends in the width direction below the armhole forming end 111a. The vertical width of the second highly elastic portion H2 is preferably 0.5 to 5 cm, and more preferably 1 to 3 cm.

In this embodiment, the second highly stretchable section H2 is formed at a position away from the armhole forming end 111a downward, and the first low stretchable section L1 is formed to extend upward from the second highly stretchable section H2. The second highly stretchable section H2 may be formed to intersect with the lower end of the armhole forming end 111a. The distance between the upper end of the second highly stretchable section H2 and the lower end of the armhole forming end 111a is preferably 0 to 10 cm, and more preferably 1 to 7 cm. If the second highly stretchable section H2 is formed at a position away from the armhole forming end 111a downward, as in this embodiment, it is preferable because it is less likely to impede movement around the base of the wearer's arm.

The back body 1b has a first highly stretchable section H1 that covers at least the left and right shoulder blades of the wearer. In this embodiment, the first highly stretchable section H1 extends from the upper end of the back body 1b to the center of the back body 1b in the vertical direction. This allows the first highly stretchable section H1 in this embodiment to cover the back of the wearer. The first highly stretchable section H1 forms part of the upper edge and part of the side edge of the back body 1b.

In addition, the back body 1b has low-stretch parts L, which are a pair of third low-stretch parts L3 that cover the left and right shoulders of the wearer, and a fourth low-stretch part L4 that covers the waist of the wearer.

The first highly stretchable section H1 extends from the top end of the back body 1b to the vertical center of the back body 1b. The first highly stretchable section H1 forms part of the top edge and part of the side edge of the back body 1b. The first highly stretchable section H1 extends downward beyond the armhole forming end 111b. The distance between the bottom end of the first highly stretchable section H1 and the bottom end of the armhole forming end 111b is preferably 0 to 10 cm, and more preferably 1 to 7 cm.

The upper end of the first highly stretchable section H1 is joined to the neck rib 1d at the widthwise center and joined to the upper end of the front body 1a at both widthwise ends. The upper edge of the first highly stretchable section H1 has a pair of inclined sections H11 that slope downward from the center to both ends. A third low-stretch section L3 is formed above these inclined sections H11. This makes it possible for the first highly stretchable section H1 of the shirt 1 of this embodiment to be less likely to impede movement around the wearer's shoulders.

The fourth low-elasticity section L4 extends from the vertical center of the back body 1b to the bottom end of the back body 1b. The fourth low-elasticity section L4 forms part of the side edge and the bottom edge of the back body 1b.

In this embodiment, the first highly elastic section H1 and the second highly elastic section H2 are joined below the armhole. Specifically, both ends of the second highly elastic section H2 are joined to the lower end of the first highly elastic section H1. The lower end of the first highly elastic section H1 and the lower end of the second highly elastic section H2 extend in the width direction so as to be continuous with each other. The lower end of the first highly elastic section H1 and the upper end of the second highly elastic section H2 may extend so as to be continuous with each other, or the lower end of the second highly elastic section H2 may extend below the lower end of the first highly elastic section H1.

As shown in FIG. 3, the second highly stretchable portion H2 is joined to the lower end of the first highly stretchable portion H1 so as to suppress the upward contraction of the first highly stretchable portion H1. The second highly stretchable portion H2 cooperates with the first highly stretchable portion H1 to form a highly stretchable annular region HAR. The annular region HAR is a region that contracts radially inward (toward the wearer). This annular region HAR functions to support the front body 1a and the back body 1b on the wearer. This suppresses the first highly stretchable portion H1 from shifting from an appropriate position during posture correction. In addition, the first low stretchable portion L1 is suppressed from following the first highly stretchable portion H1, which contracts in the vertical direction, and thus suppresses the front body 1a from shifting out of position.

The second low-elasticity section L2 of the front body 1a and the fourth low-elasticity section L4 of the back body 1b are formed to face each other.

The neck rib 1d is made of the low-stretch fabric.

The stretch fabric forming the highly elastic portion H of this embodiment preferably has a stretch rate in the horizontal direction of 100% or more, more preferably 150% or more, and even more preferably 200% or more. Also, the stretch rate in the vertical direction is preferably 30% or more, more preferably 50% or more, even more preferably 100% or more, even more preferably 150% or more, and especially preferably 200% or more.

The stretch fabric preferably has a stretch recovery force of 0.5 N or more when stretched 30% in the horizontal direction, and more preferably 1.0 N or more. The stretch recovery force of the stretch fabric when stretched 30% in the vertical direction is preferably 0.5 N or more, and more preferably 1.0 N or more. The stretch fabric typically has a stretch recovery force of 5 N or less when stretched 30% in both the horizontal and vertical directions.

On the other hand, the low-stretch fabric forming the low-stretch portion L of this embodiment preferably has an elongation rate in the horizontal direction of less than 200%, and more preferably 150% or less. Also, the elongation rate in the vertical direction preferably has an elongation rate of less than 200%, and more preferably 150% or less.

The low-stretch fabric has a stretch recovery force of 0.1 N or more and less than 0.5 N when stretched 30% in both the horizontal and vertical directions.

The low-stretch fabric preferably has a stretch rate in the horizontal direction that is 50% or more smaller than that of the stretch fabric, and more preferably has a stretch rate of 100% or more smaller than that of the stretch fabric. Also, the low-stretch fabric preferably has a stretch rate in the vertical direction that is 50% or more smaller than that of the stretch fabric.

The low-stretch fabric preferably has an elongation recovery force at 30% elongation in the horizontal direction that is at least 0.5 N smaller than the stretch fabric. The low-stretch fabric preferably has an elongation recovery force at 30% elongation in the vertical direction that is at least 0.5 N smaller than the stretch fabric. This makes it less likely that the first low-stretch section L1 will impede the posture correction function of the first high-stretch section H1.

The elongation rate is measured using Method A (cut strip method) as specified in JIS L 1096:2010 (Fabric testing methods for woven and knitted fabrics).

The elongation recovery force is measured as follows. First, the test piece is rectangular with a length of 160 mm and a width of 25 mm. The tensile speed and unloading speed are set to 300 mm ± 20 mm/min, and the test piece is repeatedly pulled three times to a length equivalent to 80% of its natural length. The elongation and recovery force at 30% elongation in the first and third times are measured, and the average of the two measurements is taken as the elongation recovery force. The upper end of the test piece is 25 mm and the lower end of the test piece is 35 mm long.

The stretch fabric preferably has a modulus of elasticity in the horizontal direction of 70% or more, more preferably 80% or more, measured by the D method (repeated constant elongation method) specified in JIS L 1096:2010 (Fabric testing methods for woven and knitted fabrics). The stretch fabric preferably has a modulus of elasticity in the vertical direction of 70% or more, more preferably 80% or more.

It is preferable that the low-stretch fabric has a stretch modulus of 70% or more in the horizontal and vertical directions.

The stretch fabric forming the highly elastic portion H has a breathability (method A (Fragile type method)) of 20 ^cm3 / ^cm2 ·s or more as measured by the method specified in JIS L 1096:2010 (Fabric testing methods for woven and knitted fabrics). The stretch fabric preferably has a breathability of 30 ^cm3 / ^cm2 ·s or more.

The low-stretch fabric forming the low-stretch portion L preferably exhibits breathability of 50 cm ³ /cm ² ·s or more, more preferably 100 cm ³ /cm ² ·s or more, and even more preferably 200 cm ³ /cm ² ·s or more.

The stretch fabric and the low-stretch fabric preferably have a water absorption speed of 60 seconds or less, more preferably 30 seconds or less, as measured by the drop method specified in JIS L 1097:2010 (Testing method for water absorption of textile products).

The stretch fabric of this embodiment is composed of a stretch yarn formed by twisting together polyurethane-based fibers and polyester-based fibers. The stretch yarn of this embodiment is composed of a core yarn and a sheath yarn. The proportion of polyurethane-based fibers in the stretch yarn is 10 to 50 mass %, and the proportion of polyester-based fibers is 50 to 90 mass %. This allows the stretch rate and stretch recovery force of the stretch fabric to be set to appropriate values for correcting the posture of the back body 1b and preventing the front body 1a and back body 1b from shifting out of position. The stretch yarn may be formed only from polyester-based fibers.

The low-stretch fabric is made of low-stretch yarns made of polyester fibers. The proportion of polyester fibers in the low-stretch yarns is 90% by mass or more.

The sheath yarn in the stretch yarn is preferably a false twisted yarn. Furthermore, when the stretch yarn is formed only from polyester-based fibers, the polyester-based fibers are preferably false twisted. This can increase the elasticity of the stretch fabric. Furthermore, the bulkiness of the stretch fabric and the low stretch fabric can be increased, and a good texture can be imparted to the high stretch section H and the low stretch section L.

The stretch yarn and the low stretch yarn are preferably multifilament yarns. This allows the stretch fabric and the low stretch fabric to have excellent water absorption. In order to improve water absorption and stretchability, the stretch yarn and the low stretch yarn are preferably false twisted shrink processed yarns, air processed yarns, or composite yarns in which two or more types of constituent yarns are subjected to air blend processing or composite false twist processing.

The polyester fiber preferably has a single yarn fineness of 0.5 dtex or more, and more preferably 1.0 dtex or more. This improves the abrasion strength of the stretch yarn and the low stretch yarn. The polyester fiber preferably has a single yarn fineness of 2.5 dtex or less, and more preferably 1.5 dtex or less. This gives the stretch fabric and the low stretch fabric excellent water absorption and breathability.

The cross-sectional shape of the single fiber of the polyester fiber may be circular, triangular, rectangular, having multiple constrictions, hollow, or other irregular cross-sectional shapes. The polyester fiber is preferably a composite fiber such as a side-by-side fiber in which different types of polyester fibers (for example, two types of fibers consisting of polyethylene terephthalate fiber and polytrimethylene terephthalate fiber) are joined. The side-by-side fiber exhibits latent crimping, so that the yarn made using the side-by-side fiber has excellent elasticity. Therefore, by using the side-by-side fiber in the polyester fiber of the high elasticity section H, it is possible to impart excellent elasticity to the high elasticity section H with a relatively small amount, and it becomes easier to impart breathability to the high elasticity section H.

Examples of polyester resins for forming the polyester-based fibers include polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polylactic acid, stereocomplex polylactic acid, etc. The polyester resin may be a binary copolymer or ternary copolymer in which other monomers are copolymerized. Furthermore, it is preferable that the polyester is obtained by recycling.

The polyester-based fiber may be formed from a resin composition containing the polyester resin and an additive. Examples of the additive include a matting agent such as titanium oxide, an antibacterial agent, a micropore-forming agent, a cationic dye dyeable agent, a coloring inhibitor, a heat stabilizer, a fluorescent whitening agent, a colorant, a moisture absorbent, and inorganic fine particles, and these may be used alone or in combination. For example, polyester fibers formed from the resin composition containing the matting agent become semi-dull or full-dull fibers, which can impart anti-transparency and infrared and ultraviolet shielding properties to the fabric, and are therefore preferable.

The stretch fabric of this embodiment is a knitted fabric formed by a combination of the stretch yarn and the low stretch yarn. The low stretch fabric of this embodiment is a knitted fabric formed by the low stretch yarn. In the shirt 1 of this embodiment, the stretch fabric and the low stretch fabric are knitted seamlessly (whole garment) without using any joining material such as sewing thread or adhesive. In other words, in the shirt 1 of this embodiment, the stretch fabric and the low stretch fabric are connected without the joining material. More specifically, the stretch fabric and the low stretch fabric are connected by the engagement of the stretch yarn constituting the stretch fabric and the low stretch yarn constituting the low stretch fabric.

The shirt 1 of this embodiment can be used when learning the correct movement of a golf swing. It is important to maintain the correct posture with your chest out during a golf swing, and a wearer wearing the shirt 1 of this embodiment can maintain the correct posture during a golf swing.

As described above, one embodiment has been shown as an example, but the shirt of the present invention is not limited to the configuration of the above embodiment. Furthermore, the shirt of the present invention is not limited by the above-mentioned effects. The shirt of the present invention can be modified in various ways without departing from the gist of the present invention.

For example, the first highly stretchable section H1 of the back body 1b may be formed in an X-shape where a band-shaped highly stretchable section extending from the right end of the upper end of the back body 1b to the left end of the vertical center of the back body 1b and a band-shaped highly stretchable section extending from the left end of the upper end of the back body 1b to the right end of the vertical center of the back body 1b intersect.

In addition, in the shirt 1 according to the above embodiment, the stretch fabric and the low-stretch fabric are knitted seamlessly (whole garment) without using any joining materials such as sewing thread or adhesive, but the present invention is not limited to this. For example, the shirt may be a cut-and-sewn item in which the stretch fabric and the low-stretch fabric are sewn together, or a cut-and-sewn item in which the front body and the back body are sewn together.

The present invention will be further explained below with reference to examples.

We decided to create shirts with the configuration shown in Figures 1 to 3 and evaluate their performance.

[Manufacturing example of shirt according to Example 1]
The high-stretch portion was formed using a stretch yarn (polyurethane fiber: 20% by mass, polyester fiber: 80% by mass) formed by twisting together polyurethane fiber and polyester fiber. On the other hand, the low-stretch portion was formed using a low-stretch yarn (polyester fiber: 100% by mass) formed by twisting together polyester fiber. Then, the high-stretch portion and the low-stretch portion were formed at predetermined positions of the front body and the back body by whole garment. Table 1 shows the size of each part of the produced shirt. Table 2 shows the physical properties of the high-stretch portion and the low-stretch portion measured according to the above-mentioned measurement method.

[Manufacturing example of a shirt according to Comparative Example 1]
A shirt was produced in the same manner as in Example 1, except that the highly elastic portion was only the first highly elastic portion in the back body (there was no second highly elastic portion in the front body).

The shirts of Example 1 and Comparative Example 1 were evaluated according to the following evaluation method. The results are shown in Table 3.

[Evaluation method]
Ten monitors wore the shirts of Example 1 and Comparative Example 1, and swung their arms up and down and walked for five minutes. The shirts were then evaluated for slipping up (i.e., position shifting). The ten monitors were also asked to evaluate the burden on the shoulders and back on a five-point scale (1: small burden to 5: large burden), and the average score for the ten monitors was calculated. The shoulder and back correction (1: small correction to 5: large correction, the higher the value, the better) and discomfort (1: small discomfort to 5: large discomfort) were also evaluated on a five-point scale, and the average score for the ten monitors was calculated. The correction means the degree to which the shirt brings the shoulder blades together.

As shown in Table 3, the shirt of Example 1 was found to be excellent at preventing misalignment, correcting posture, and preventing discomfort when worn.

1: shirt, 1a: front body, 11a: side edge, 111a: armhole forming end, 1b: back body, 11b: side edge, 111b: armhole forming end, 1c: sleeve, 1d: neck rib, H: high elasticity section, H1: first high elasticity section, H11: inclined section, H2: second high elasticity section, HAR: high elasticity annular region, L: low elasticity section, L1: first low elasticity section, L2: second low elasticity section, L3: third low elasticity section, L4: fourth low elasticity section

Claims (3)

It has a front body and a back body,
Each of the front body and the back body has an armhole forming end portion for forming an armhole,
The front body and the back body have a high elasticity section having an elongation rate of 100% or more in the horizontal direction and a low elasticity section having elasticity lower than that of the high elasticity section,
The highly elastic portion includes a first highly elastic portion provided on the rear body and covering the left and right shoulder blades of the wearer, and a band-like second highly elastic portion provided on the front body and extending in the width direction,
the second highly elastic portion is formed to have a vertical length shorter than that of the first highly elastic portion, both ends of the second highly elastic portion are joined to the first highly elastic portion, and the second highly elastic portion extends across the width direction of the front body below the armhole forming end,
The low elasticity portion is formed from the second high elasticity portion to an upper end portion of the front body,
the first highly elastic portion is formed so as to extend from a joining position with both ends of the second highly elastic portion to an upper end of the rear body, and to form both side edges of the rear body extending from the joining position to the upper end of the rear body, and to extend between the both side edges;
The highly elastic portion of the shirt exhibits a water absorption rate of 60 seconds or less. The shirt according to claim 1, wherein the highly elastic portion exhibits an elongation recovery force of 0.5 N or more when stretched by 30%. The shirt according to claim 1 or 2, wherein the highly elastic portion exhibits breathability of 20 cm ³ /cm ² ·s or more.