KR101820876B1

KR101820876B1 - A Method for Coupling a Power Band to a Flexible Knitted Fabric by Seamless Welding

Info

Publication number: KR101820876B1
Application number: KR1020150172520A
Authority: KR
Inventors: 한기수; 오경남; 남승호
Original assignee: 더인터맥스(주)
Priority date: 2015-12-04
Filing date: 2015-12-04
Publication date: 2018-01-22
Also published as: KR20170066023A

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of joining a power band to a stretch knitted fabric by non-sewn welding, and more particularly, to a joining method of joining a power band for improving muscle strength to a sportswear such as cycling wear, . A method of joining a power band to a stretch knitted fabric by non-sewn welding includes the steps of determining a stretch of the sports fabric; Determining an adhesion position of the power band on the sports fabric; Selecting a knit material of the power band; Determining a plane stretch of the power band; Attaching an adhesive film to the power band; Determining a fixation site at the adhesion location; Bonding the fixed portion in a welding manner; And adhering the adhesive film in a welding manner.

Description

Technical Field [0001] The present invention relates to a method of joining a power band to a stretchable knitted fabric by non-sewing,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of joining a power band to a stretch knitted fabric by non-sewn welding, and more particularly, to a joining method of joining a power band for improving muscle strength to a sportswear such as cycling wear, .

Sportswear, such as cycling wear, requires a variety of functionalities such as stretchability, breathability, quick-drying sweat, high fit, light weight, or skin friendliness. Such sportswear can be made of a variety of materials such as polyester, cotton, nylon, spandex, acetate or latex. Sportswear requiring high functionality may be made of knitted fabric or woven fabric, but it is advantageous to be made of stretch knit fibers due to elasticity or comfort. Such a sportswear may incorporate a power band to improve muscle strength during exercise. The power bands can be made independently and worn on the human body or bonded to the sportswear. When the power band is joined to the sportswear, it is advantageous to be integrally joined together, for example, in a non-sewn manner. Techniques related to various sportswear having high functionality are known in the art.

Japanese Patent Application Laid-Open No. 10-2013-0051522 discloses a method for manufacturing a waterproof and durable waterproof fabric, comprising the steps of: fusing two or more moisture permeable and waterproof fabrics with their end portions overlapping each other with an ultrasonic welder; And closing the end portion of the moisture permeable and waterproof cloth with a seam sealing tape, wherein the seaming sealing tape is made of an acrylic film having a polyurethane adhesive coated on one side, wherein the polyurethane adhesive of the seaming sealing tape is a moisture permeable waterproof fabric The present invention discloses a method of finishing non-sewn sportswear and outdoor garment that is adhered to a surface of a polyester or nylon fabric coated with a moisture-permeable, waterproof film and finishes.

WO 2014/091793 discloses a cushioning material comprising a topsheet made of a stretchable material and having a shoulder portion, a lower portion made of a stretchable material and having a crotch portion, and a waist portion at the lower end of the topsheet or the lower waist portion And a locking portion provided in the overlapped portion and detachably connecting the lower end portion of the upper end of the upper layer and the lower portion of the lower portion of the uppermost portion, And a start portion for starting the operation of separating the top and bottom of the sportswear.

Although the prior art discloses a method of joining different fabrics of sportswear or a sportswear for cycling that does not come into contact with the wearer's skin, it does not disclose how to combine the power band of sportswear or the sportswear with the power band .

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the prior art and has the following objectives.

Prior art 1: Patent Publication No. 10-2013-0051522 (Korea Institute of Industrial Technology, published on May 21, 2013) Finishing method of sewing sportswear and outdoor clothes Prior Art 2: WO 2014/091793 (published by Pearl Izumi, Inc., published on August 19, 2014) Sportswear

It is an object of the present invention to provide a method of joining a power band to a stretchable knitted fabric by non-sewn welding, wherein the power band is bonded to the stretch knitted fabric by a non-sewn welding method.

According to a preferred embodiment of the present invention, a method of joining a power band to an elastic knit fabric by non-sewn welding comprises the steps of: determining the elasticity of the sports fabric; Determining an adhesion position of the power band on the sports fabric; Selecting a knit material of the power band; Determining a plane stretch of the power band; Attaching an adhesive film to the power band; Determining a fixation site at the adhesion location; Bonding the fixed portion in a welding manner; And adhering the adhesive film in a welding manner.

According to another preferred embodiment of the present invention, the step of bonding in a welded manner the fixing part further comprises the step of attaching the central fixing strip along the extending direction of the power band.

According to another preferred embodiment of the present invention, a method of joining a power band to a stretch knit fabric comprises the steps of: determining a formation position of a power band in a sports fabric; Determining a stretching degree of the power band according to the stretching degree of the sports fabric; Applying an adhesive to one side of the power band or attaching an adhesive film; And disposing the power band in a forming position and bonding the adhesive or adhesive film by welding, wherein the sports fabric becomes a stretch knit, and the power band becomes a stretchable silicone.

The method of joining the power band according to the present invention can be applied to sportswear such as sportswear for cycling to enable measurement of electromyography (EMG). In addition, the method of joining the power band according to the present invention improves the wearing comfort while improving the durability by being stretched in the same direction as the sportswear by making it sportswear bonded by the non-sewing welding method. The method of joining the power band according to the present invention prevents the damage of the power band part due to the formation of the seam line. It also prevents moisture from penetrating between the sportswear and the power band.

FIG. 1 illustrates an embodiment of a method of joining a power band to a stretchable knit by a non-sewn welding method according to the present invention.
FIG. 2 illustrates an embodiment of a power band bonded by the bonding method according to the present invention.
FIG. 3 illustrates another embodiment of a power band bonded by the bonding method according to the present invention.
Figure 4 shows an embodiment of a sportswear for cycling to which the method according to the invention is applied.
Fig. 5 shows another embodiment of a method of joining a power band according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, so that they will not be described repeatedly unless necessary for an understanding of the invention, and the known components will be briefly described or omitted. However, It should not be understood as being excluded from the embodiment of Fig.

FIG. 1 illustrates an embodiment of a method of joining a power band to a stretchable knit by a non-sewn welding method according to the present invention.

Referring to FIG. 1, a method of joining a power band according to the present invention includes: determining a stretch degree of a sports fabric P11; (P12) determining a bonding position of the power band on the sports fabric; (P13) selecting a stretchable knit material of the power band; Determining a planar stretch of the power band (P14); Attaching an adhesive film to at least a portion of the power band (P15); Determining a fixed portion (P16) at the bonding position; (P17) of adhering the fixing part in a welding manner; (P18) of adhering the adhesive film in a welded manner. The power band to which the method according to the invention is applied may be attached to the sportswear and may be attached to sportswear, such as, for example, . The power band can be made of stretch knitted material, and the power band bonded sportswear can be made of knitted material, spandex material, polyurethane material, polyester material or mixed material thereof. The sportswear may have relatively greater stretchability than the power band, and the power band may be joined to a position where muscle strength improvement is desired. The power band may be made in an annular ring shape or in a strip or strip shape extending in the longitudinal direction. At least a portion of the power band can be made of knitted fabric, made of weft knitting and warp knitting, and can be circular knitted, transverse knitted or warp knitted fibers. The power band can be made so that one direction is greater in elasticity than the other direction, and the magnitude of the elasticity in accordance with this direction can be determined according to the wearing area. The power band can be made of various structures or fibers, and the present invention is not limited by the type of power band.

The elasticity of the sports fabric can be determined for the adhesion of the power band (P11). The stretching degree of the sports fabric refers to a plane stretching degree and includes a stretching degree in the horizontal and vertical directions. In particular, the stretchability of the sports fabric can be determined around the area to which the power band is to be bonded. When the stretch degree of the sports fabric is determined (P11), the shape of the power band depending on the bonding position and the bonding position of the power band can be determined (P12). The power band may be annular or annular, and may be strip-shaped or band-shaped. When the bonding position of the power band is determined (P12), the material of the power band can be selected (P13). The material of the power band can be determined, for example, by physical properties such as elasticity, comfort or flexibility, and at least part of it can include knitted fibers based on contact feel and stretchability. The stretchability of the power band may be small as compared with the stretchability of the sportswear, and may be determined depending on the portion to be adhered to the sportswear. In addition, the power band can be larger than the stretchability in one direction and the stretchability in the other direction perpendicular thereto. When the knit material for the power band is selected (P13), the plane stretching degree of the power band can be selected. The plane stretchability of the knitted material can be determined, for example, by selecting different types of knitted fabric materials. For example, polyester fibers, polyurethane fibers and cotton fibers can be selected as the knitted fiber materials, and the elasticity of the elastic bands can be determined based on the ratio of each fiber and the knitting form. When the plane stretching degree in two directions perpendicular to one direction and one direction of the elastic band is determined in this way (P14), an adhesive film and a conductive band may be formed on the power band (P15). The conductive strip may, for example, have an EMG function or may have a fever function. Conductive strips can be made of organic materials, silver nanowires or platinum materials. The conductive band may be formed in a shape extending in the longitudinal direction of the power band, and a plurality of bands may be disposed in the power band. At the same time, the adhesive film can be disposed on at least a part of the surface where the power band is adhered to the sportswear. The adhesive film can be made of a synthetic resin material such as polyester, polyurethane, polyvinyl or polyacrylic material, and can be a hot-melt adhesive capable of heat fusion. The adhesive film may have a thickness of, for example, 10 to 200 mu m, and at least a part of the adhesive film may be made of a synthetic resin material having elasticity similar to that of the power band. The adhesive film may be disposed in the power band in the form of a separated strip, and may be arranged at the edge portion of the power band or the central portion along the lengthwise direction. When the adhesive film of the synthetic resin material and the conductive band are disposed on the power band (P15), the attachment fixing region can be determined (P16). The fastening portion can be a stretching reference portion of the power band made of stretch knit fibers. The fixing portion may be formed into a circular or rectangular shape having a predetermined size, and a plurality of the fixing portions may be disposed separately. Also, the fixed portion may be disposed in the central portion of the power band and may be disposed in a symmetrical shape with respect to the central portion. The fastening sites may be thermally fused by a weakly stretchable adhesive film or may be made of a relatively thick adhesive layer. When the fixing part having such a structure is determined, the power band is adhered to the sportswear, and the fixing part is preferentially adhered to the sportswear by a welding method such as ultrasonic welding, for example (P17). Ultrasonic welding may be carried out at a frequency of 1 kHz to 20 kHz, for example, so that the bonding time is 0.1 to 1.0 second and the bonding pressure is 400 to 1000 N. Or 1 to 6 m / min at a frequency of 1 kHz to 5 kHz and a process temperature of 150 to 300 ° C. The adhesive film on the extensible area can be bonded by welding under conditions similar to those described above (P18). Accordingly, the bonding process of the power band can be completed.

The adhesive film in the stretching region may have a sealing function and may have a core tape function. For this sealing function, the adhesive film disposed at the edge of the power band may be in the form of a connected strip.

FIG. 2 illustrates an embodiment of a power band bonded by the bonding method according to the present invention.

2 shows a structure in which an adhesive film is bonded to a region where the power band 21 is adhered to the sportswear SM. The upper drawing, the lower left drawing and the lower right drawing show a plan view, And a thickness surface centered on the fixed portion. Referring to FIG. 2, the fixing portions 23a and 23d may be disposed along the longitudinal direction center of the power band 21. FIG. The other fixing portions 23b and 23c may be arranged to be symmetrical in the width direction of the fixing portions 23a and 23b disposed at the center portion. And a center fixing band 22 connecting the fixing portions 23a and 23d disposed at the center portion with each other. As described above, the fixing portions 23a to 23d can be made of a material having a low elasticity with respect to the material of the power band or sportswear. The center fixed band 22 may be made of a synthetic resin adhesive or a synthetic resin material having the same or similar width as that of the fixed portions 23a to 23d with a width of, for example, 1/100 to 1/4 of the width of the power band . Thus, the center fixing band 22 and the fixing portions 23a to 23d can have a strong adhesive force.

The separating strips 24a, 24b, 24c, 24d, 24e, and 24f may be separated along both edges of the power band 21. [ The separation strips 24a to 24f may be one to three times as wide as the center fixed band 22, and may be arranged along the length direction separately from each other. The separating strips 24a, 24b, 24c, 24d, 24e, and 24f may be an adhesive film made of a material similar to the power band, and thus may have elasticity similar to that of the power band. And sealing strips 25a and 25b may be disposed outside the separating strips 24a to 24f. Although the sealing strips 25a and 25b can be made of a material similar to other adhesive films, they can be made of a material similar to sportswear and are made of a material having elasticity similar to sportswear, It can be made of synthetic resin material. The sealing strips 25a and 25b may be made to have a width in which the separating strips 24a to 24f can be disposed and may be formed into a shape continuously extending along the lengthwise direction of the power band 21. [

Referring to FIG. 2, the fixing portions 23a to 23d may be made of a material having a relatively large thickness or a material having a low elasticity with respect to other adhesive films. The power band of the fixing portions 23a to 23d and the pressure heat fusion for adhering to the sportswear can be performed as needed. Ultrasonic welding may then proceed.

The separating strips 24a to 24f and the sealing strips 25a and 25b may be arranged to deviate from the edge of the power band 21 and thereby have the function of connecting the edge of the power band 21 with the sportswear have. However, the separation strips 24a to 24f may be disposed inside the power band 21. [

A preliminary coating may be formed on the entire bonding surface of the power band 21 to improve adhesion between the power band 21 and the sportswear.

FIG. 3 illustrates another embodiment of a power band bonded by the bonding method according to the present invention.

Referring to FIG. 3, a precoating layer 31 may be formed on the inner surface of the power band 21. The precoating layer 31 can be formed, for example, in such a manner that a synthetic resin adhesive is applied by using a device such as dispensing. The precoating layer 31 may be a synthetic resin adhesive similar to the synthetic resin included in the power band 21 and may be formed to a thickness sufficiently thin as compared with the adhesive film such as 3 to 20 mu m. The precoating layer 31 may also be made of a synthetic resin having a low melting point. The precoat layer 31 may be formed of a material having a smaller elasticity than the sportswear and a greater elasticity than the power band 21. [ The precoating layer 31 can be made into a film and melted in the ultrasonic welding process due to its low melting point and can be uniformly distributed on the adhesive surface of the power band 21 of the knitted material.

The conductive strips 32a and 32b may be formed to extend in the longitudinal direction within the power band 21 and the conductive strips 32a and 32b may be formed of conductive polyether or polyester synthetic resin. The conductive strips 32a and 32b may be formed symmetrically with respect to each other, and may be arranged to be symmetrical with respect to each other about the center fixing portion 23a.

Referring to Fig. 3, the central fixing strips 22a to 22e may be formed at respective fixing portions. The central fixing strips 22a to 22e can be arranged in a shape that crosses the fixing portions 23a to 23e in the longitudinal direction. The centering strips 22a-22e may be first adhered to the sportswear by thermal welding or ultrasonic welding, before the adhesive film is fixed by welding. The central fixing strips 22a to 22e are formed so that the power band 21 is expanded or contracted about the fixed portions 23a to 23e and a plurality of adhesive fixing points are formed between the sportswear and the power band 21 Thereby improving the adhesive strength.

The fixing portions 23a to 23e can be fixed in various ways, and the present invention is not limited to the embodiments shown.

4 shows an embodiment of a cycling sportswear 41, 42 to which the method according to the invention is applied.

Figure 4 shows the top 41 and bottom 42 of the sportswear for cycling. The bonding method according to the present invention can be applied to power bands 411, 412, 421, 422 bonded to various positions of the top (41) or bottom (42). The power bands 411 and 412 may be disposed around the neck and the chest area of the topsheet 41. And the power bands 421 and 422 can be disposed with respect to the thigh region of the lower body 42.

The bonding method according to the present invention is such that an adhesive or an adhesive film is adhered along the stretching and shrinking directions of the power bands 411, 412, 421 and 422 in the top 41 and the bottom 42 of the cycling sportswear, It can be bonded by ultrasonic welding.

At least a portion of the sportswear or at least a portion of the power band may be a stretch knit material, and the power bands 411 to 422 may be made of a silicone material, PDMS (polydimethylsiloxane), or a mixture thereof. The power bands 411 to 422 may be made of a large elastic material, for example, a polyurethane material. And the adhesive or adhesive film may be a polyurethane material. The elasticity is increased by the polyurethane component included in the power bands 411 to 422, and at the same time, the adhesive force can be improved. Then, the power bands 411 to 422 and the sportswear can be integrally combined by adhesion by a welding method.

The power bands 411 to 422 may be in a strip shape or a string shape, but are not limited thereto.

The bonding method according to the present invention can be applied to bonding of power bands to various sports wears, and the present invention is not limited to the embodiments shown.

Fig. 5 shows another embodiment of a method of joining a power band according to the present invention.

Referring to FIG. 5, a method of joining a power band to sportswear includes: determining a formation position of a power band in a sports fabric (P51); A step (P52) of determining a stretching degree of the power band in accordance with the stretching degree of the sports fabric; Applying an adhesive to one side of the power band or attaching an adhesive film (P53); And placing the power band in a forming position and bonding the adhesive or adhesive film by welding (P56), the sports fabric becomes a stretch knit, and the power band becomes a stretchable silicone.

The sportswear can be, for example, the sportswear for cycling shown in FIG. 4, and the power band can be made in a strip shape. The joint position can be determined around the muscle strength strengthening area (P51). The sportswear can be made of knitted or similar materials, and the power band can be made of, for example, elastic or stretchable silicone, PDMS or a blend of these. The stretching degree of the power band can be determined according to the formation position of the power band and the stretching degree of the sportswear. The power band can be determined to have a small elastic modulus or a large modulus of elasticity as compared to the spreadsheet (P52). The extensibility or elastic modulus of the power band can be controlled by the characteristics of the material itself or the structure of the power band. For example, the power band may include a polyurethane material having a high modulus of elasticity, or may be formed into a strip shape having a large width to increase the modulus of elasticity. When the stretching degree of the power band is determined in this way (P52), an adhesive may be applied to one side of the power band or an adhesive film may be attached. The adhesive or adhesive film can be made of a polyurethane material and can be made to have a stretch or elastic modulus similar to that of a power band. And the adhesive or adhesive film may be attached to the power band so as to have a waterproof function and a thickness of 10 to 200 mu m. When the adhesive or adhesive film is attached to one side of the power band (P53), the fixing site can be determined (P54). The fastening portion can be made in a manner similar to that described above, and can be made into a material or shape having elasticity that is sufficiently small or sufficiently large in elasticity compared to the power band. In this way, if the fixed part is determined to be a separated shape, the power band can be attached to the spreadsheet. And the fixation site may be glued to the sportswear by, for example, ultrasonic welding (P55). The entire power band can then be bonded to the sportswear by ultrasonic welding (P56). As described above, since the power band of silicone or similar material is adhered to the sportswear of the stretch knit material in a welding manner, the sportswear is made lightweight and has practicality, convenience and durability.

The power band according to the present invention can be adhered to sportswear in a variety of ways, and the invention is not limited to the embodiments shown.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention . The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

21: power band 22: center fixed band
22a, 22b, 22c. 22d, 22e: central fixing strip
23a, 23b, 23c, 23d, and 23e:
24a, 24b, 24c, 24d, 24e, 24f: separation strips 25a, 25b: sealing strips
31: Precoating layer 32a, 32b: Conductive strip
41: Top 42: Bottom
411, 412, 421, 422: power band

Claims

Determining a stretch of the sports fabric;
Determining an adhesion position of the power band on the sports fabric;
Selecting a knit material of the power band;
Determining a plane stretch of the power band;
Disposing an adhesive film and a conductive band on the power band;
Determining a fixation site at the adhesion location;
Bonding the fixed portion in a welding manner; And
And adhering the adhesive film in a welding manner,
Wherein the step of bonding the fastening portions in a welded manner further comprises attaching a central fastening strip disposed in a shape transverse to the fastening portions in the longitudinal direction along an extension direction of the power band, A method of bonding a power band to a fabric.

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