TW202139869A - Clothing - Google Patents

Abstract

Provided is clothing which can reduce a lack of elongation of a bonded portion and improve feeling of wear during light exercise, even when forming the clothing by bonding cloth using an adhesive. This clothing is made of stretchable cloth and has a bonded portion where an adhesive has been used to adhere the cloth together, wherein the difference between the stress during 50% stretching in the longitudinal direction of the bonded portion and the stress during 50% stretching in a direction parallel to the longitudinal direction of the bonded portion of the cloth adhered by the bonded portion is within 30%.

Description

Clothing

The present invention relates to clothing.

In the prior art, instead of using a sewing machine to join fabrics, there is a technique that uses adhesives to join fabrics to form garments. For example, Patent Document 1 proposes a related technology that involves bonding hot melt sheets when folding back surface fabrics such as swimsuit fabrics. On the other hand, a technique for imparting extensibility properties to a joint portion where fabrics are joined by using an adhesive is known. A technique for joining fabrics constituting clothing using an adhesive attached in a dot matrix is known. For example, Patent Document 2 proposes a technique for bonding the body of the underwear to the sleeves using adhesives repeatedly arranged in a dot matrix or zigzag shape. [Prior Technical Literature] [Patent Literature]

Patent Document 1: Japanese Patent Laid-Open No. 2005-264394 Patent Document 2: Japanese Patent No. 6249821

(The problem to be solved by the invention)

However, even clothing with these technical configurations, when actually touched or worn, can impart numerical extensibility characteristics to the joints between the fabrics, but the joints are parts that are relatively difficult to extend. , The touch and wearing feeling will remain uncomfortable. On the other hand, the conventional technology only focuses on the extensibility characteristics of the joint part, which causes discomfort when it is not grasped when it is originally touched or when it is worn. That is, the reason for the discomfort when actually touched or worn is because the extensibility characteristics of the joint and the fabric adjacent to the joint are large, and the poor extensibility characteristics between the two lead to the discomfort. For example, even if the extensibility characteristics of the junction are excellent, it may not necessarily satisfy the touch and wearing feeling. Especially when it is not only worn, but even when the product is stretched by hand, the resistance and feel of the lower stretch area are stretched. Even if the extensibility properties of the joint are excellent, the extensibility properties of adjacent fabrics are often in a more excellent state. Therefore, the difference between the two becomes the cause of discomfort. In particular, when the end of the opening is folded back and fixed with a bonding agent, it is easy to feel the poor extensibility characteristics between the bonding part and the fabric adjacent to the bonding part during wearing, which may cause a decrease in the wearing feeling.

The present invention has been completed in view of the above-mentioned facts, and is to provide clothing that can improve the discomfort when actually touching the joint portion and wearing it even when fabrics are joined to form clothing using a bonding agent. (Technical means to solve the problem)

In order to solve the above-mentioned problems and achieve the object, the garments of the present invention are made of stretchable fabrics and have a joint portion between the fabrics using a bonding agent; wherein, the stress at the time of 50% stretching in the direction of the long side of the joint, The stress difference between the fabric fixed by the joint and the 50% stretch in the direction parallel to the long side of the joint is within 30%. Furthermore, the clothing of the present invention is based on the above-mentioned invention, the joint is fixedly bonded by a dot matrix adhesive arranged in a single row or in multiple rows, and the proportion of the area occupied by the adhesive of the joint is Below 35%.

Furthermore, in the clothing of the present invention, in the above-mentioned invention, the peel strength when the joint portion is torn and peeled in the longitudinal direction is 10 N/cm or more. Furthermore, in the garments of the present invention, in the above-mentioned invention, after washing at a high temperature of 92°C, the peel strength in the direction of the joined long edges is 75% or more of the peel strength before washing. In addition, in the clothing of the present invention, in the above invention, the joint is an opening through which the wearer's body part passes, and the opening is composed of a structure in which the cloth end is folded back twice, and the The cloth end is in a single row or multiple rows of dot matrix adhesives attached to fix the cloth end and the cloth body. (Compared with the effect of previous technology)

According to the present invention, it is possible to provide clothing that can improve the discomfort when actually touching the joined portion and wearing it even when the fabric is joined to form clothing using a bonding agent.

Hereinafter, a mode for implementing the present invention (hereinafter referred to as "embodiment") will be described with reference to the accompanying drawings. In addition, the drawings are only schematic.

(Embodiment 1) Fig. 1 shows a schematic diagram of the clothing 1 of the first embodiment. An example of the short-sleeved underwear top of the clothing category 1 shown in the same figure has openings 2, 3, 4 through which the head, arms, and upper body pass. In addition, clothing 1 is joined by joining parts 5, 6, and 7 of the armpits, shoulders, and cuffs. The clothing 1 is made of stretchable fabric. For example, a knitted fabric material provided as a material for general clothing is not limited as long as the circular knitting and warp knitting materials have the necessary flexibility for the implementation of the present invention. Moreover, even if it is a plain fabric material, if it has stretchability for clothing materials, it is still suitable for this invention. In addition to general underwear or underwear with a cup, the clothing category 1 can also be used as materials for outer clothing such as T-shirts and sweaters, and is not limited.

FIG. 2 shows an example of the state of the joint part of the armpit joint part 5 of the garment 1 shown in FIG. The clothing 1 series replaces the use of a sewing machine to sew the fabric 8 and the fabric 8a that make up the front and back pieces, instead of overlapping the fabric end and the fabric end, and use a dot matrix adhesive 9 to fix the two between them. The armpit joint 5 is formed. In the present invention, the stress that constitutes the 50% extension of the joining portion 5 in the longitudinal direction 10 is the same as the 50% extension of the fabric 8 or cloth 8a fixed by the joining portion 5 in the direction parallel to the longitudinal direction 11 of the joining portion 5. The stress difference is within 30%. Thereby, when actually touched and worn, the joint 5 will feel that there are less parts that are not easily extended, so that the discomfort during wearing can be reduced. By configuring it to be preferably within 25%, and more preferably within 20%, it is possible to obtain clothing 1 with no discomfort in the joint 5 and excellent wearing feeling. In addition, the joint 5 is taken as an example for description here, but the above description is also applicable to the joints 6 and 7. Also, for example, the joint 7 of the cuff sleeve may have different fabric elongation on the two sides of the joint 7, but in this case, if the fabric with less stress at 50% stretch is set as the comparison object, the adjacent joint and If the fabric has poor extensibility properties, it will be reduced, and it will not be easy to feel uncomfortable.

Furthermore, the openings 2, 3, and 4 form a structure to fold the fabric end back twice, and the fabric end is fixed to the fabric body by using the dot matrix adhesive 9 attached in a single row or multiple rows along the fabric end. The bonded joint constitutes the stress difference when the joint part stretches 50% in the longitudinal direction, and the stress difference when the fabric fixed by the joint part stretches 50% in the direction parallel to the joint longitudinal direction is within 30%. FIG. 3 shows a diagram of the joint portion of the opening 3 through which the arm portion of the garment 1 passes. The opening 3 is a structure in which the cloth end is folded back twice. Adhesives 9 arranged in two rows on the cloth end are used to fix the folded cloth end and the cloth body. At the opening 3, the stress when the joint is stretched by 50% in the longitudinal direction 16 is also formed in the direction parallel to the fabric 18, which uses the joint to fix the fabric end to the main body of the fabric. 17 If the stress difference at 50% stretch is within 30%, clothing 1 with no discomfort in the joint and excellent wearing feeling can be obtained.

The focus of the garment 1 of the present invention is the stress at 50% stretch. Generally, it is an index indicating the elongation rate of materials for clothing. Most of the elongation characteristics are expressed by the elongation rate under a load of 1.5 kg. When actually wearing clothes or performing light exercises, most of the stretch loads within this level are applied. Since the extensibility necessary for actually wearing clothing 1 is about 50% elongation, the difference in stress in this area is important. In the direction of stretching of the single fabric, as far as the state of clothing 1 is concerned, it is important to stretch the joint 5 to be compared in a direction parallel to the longitudinal direction. That is, the elongation direction is not necessarily limited to the warp direction or the weft direction of the cloth. It differs according to the cutting shape and direction of the fabric constituting the clothing category 1.

The method for measuring the stress at 50% elongation is implemented in accordance with the elongation grab method described in JIS-L-1096 (2010). When a sample of the required size cannot be taken according to the design of clothing 1, the sample size can also be reduced to 5cm in width and 10cm in length, and the gripping interval is set to 5cm for measurement. When measuring the stress of the joint, it is sufficient to overlap the joint and the fabric area adjacent to the joint before taking the sample. When the fabric ends are overlapped and joined, the sample is taken so that the joint becomes the center. On the other hand, when the fabric ends are folded back and connected again, the joint part and the fabric area adjacent to the joint part are also overlapped before sampling. However, when gripping with a tensile testing machine, the focus is on grasping Hold the adhesive area, and try to hold the sample at the same position as the gripping end and the turning-back end as much as possible. In addition, when measuring the stress of the fabric alone, if the parallel direction of the long side direction is joined, the sample can be collected on any part of the same fabric. The important point is that the sample should contain the junction and not contain other components that would hinder the extensibility characteristics.

At the junction 5 of the clothing 1, the adhesive 9 is arranged in two rows in a dot matrix along the end of the cloth 8 or 8a. The size of the adhesive 9 depends on the organization and thickness of the fabrics 8 and 8a constituting the garment 1, and has different preferred sizes. If the dot matrix is 1.0~2.0mm in diameter, it is easier to obtain strong bonding strength, but when the fabric is thin, it is easy to seep into the surface of the fabric and cause conspicuousness, which will damage the appearance. It is best to obtain It is necessary to minimize the range of bonding strength. When the thickness of the cloth is 0.5~0.8mm, if the diameter of the bonding agent is less than 1.0mm, the bonding agent will not easily penetrate the surface of the fabric, so it is better. For thinner fabrics with a fabric thickness of about 0.3~0.5mm, if the adhesive has a diameter of 0.6mm or less, the exudation of the adhesive will not be conspicuous, so it is better. The adhesive 9 is in the form of a dot in the first embodiment, but it is not limited to this. The adhesive 9 may be in a shape that is repeatedly attached in a separated state, but if it is continuous, it is a linear shape, and it may also be a geometric shape such as a triangle, a four-corner, an ellipse, or a combination of these shapes.

The resin-based synthetic resin constituting the adhesive 9 used in the clothing 1 is superior to natural resins, and thermoplastic resins are particularly preferred. For example: polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyvinyl acetate, polyurethane, polytetrafluoroethylene, polyacrylic acid, polyamide, polyacetal, polycarbonate, polystyrene Ether, polyester, polyphenylene sulfide, polysulfide, polyether sulfide, polyether ether ketone, polyimide, polyimide imine, etc. In addition, it is mentioned before being composed of polymer compounds, and the rest is nothing special Various types of restrictions can be used.

The resin constituting the adhesive 9 is preferably a reactive hot melt adhesive. When the resin is a reactive hot melt adhesive, the resin softens or melts and penetrates into the structure of the bonding part, after cooling and solidification, it reacts with the surrounding moisture and crosslinks, which can form heat resistance and solvent resistance, etc. Both have excellent bonding structure.

The key point of clothing 1 is that the area ratio of the joint portion with the adhesive 9 attached is 35% or less. Preferably it is 30% or less, more preferably 25% or less. As a result, the stress at 50% extension in the direction of the long side of the joint, and the stress difference at 50% extension in the parallel direction of the joint where the fabric is fixed by the joint can be easily condensed within 30%, which can reduce discomfort. feel. In addition, the area ratio of the bonding portion to which the adhesive is attached is preferably 5% or more, more preferably 10% or more, and particularly preferably 15% or more from the viewpoint of maintaining the bonding strength of the bonding portion. FIG. 4 shows a schematic diagram of the attachment pattern of the adhesive 9 arranged on the joint portion. The area ratio of the adhesive 9 of the joint is calculated from the width 12 of the joint and the spacing 13 between the adhesive 9 and the area of the adhesive 9. The area ratio of the adhesive 9 can be calculated according to the following formula. Adhesive area ratio of the joint=((adhesive area between unit pitch)/(joint width 12×adhesive installation pitch 13))×100% Furthermore, although it can be considered that the pitch of the adhesive 9 of the joint may be uneven, in this case, the stress measurement method at 50% extension can be calculated from the area of the adhesive between the gripping intervals. Out, the average value measured for any 5 positions. which is Adhesive area ratio of the joint = ((the area of the adhesive attached between the gripping intervals)/(the width of the joint 12×the gripping interval))×100%

The key point of the garments 1 of the present invention is that the peel strength when the joint is torn and peeled in the longitudinal direction is 10 N/cm or more, more preferably 20 N/cm or more. In order to reduce the stress at the 50% extension of the above-mentioned joint part, although the area occupied by the adhesive of the joint part can be reduced, for example, the peeling strength of the joint part will be reduced, which is easy to occur due to repeated wearing/washing. For the peeling problem, in order to ensure the durability when used as clothing 1, the peeling strength is converted to 1 cm of the joint width, preferably 10 N/cm or more, and more preferably 20 N/cm or more. Generally speaking, when sewing with a sewing machine, it is a representative indicator of the strength of the joint. It is the strength when the joint is stretched in the direction orthogonal to the longitudinal direction, because depending on the design of the clothing, the required tensile test may not be reproduced. Preferably, as in the garment 1 of the present invention, only the peel strength when the joint is torn and peeled in the longitudinal direction is used as the adhesive strength of the joint for evaluation. The measurement method was implemented in accordance with the peel strength test method described in JIS-L-1086 (2013), and the obtained results are expressed in terms of the width of the joint portion converted to a width of 1 cm.

In the clothing 1 of the present invention, the peel strength when the joint portion after being washed at a high temperature of 92°C is torn in the longitudinal direction and peeled off is preferably 75% or more of the peel strength before washing. More than 80% of the better series, more than 90% of the particularly good series. The washing method is equivalent to 5 washings in accordance with the 9N method stipulated in JIS-L-1930 (2014). In this way, even if the area occupied by the adhesive 9 is reduced in order to reduce the stress at the time of 50% stretching, even if it is repeatedly worn/washed, sufficient durability can be ensured, and even for high-temperature washing generally adopted in Europe It can still ensure sufficient durability.

(Embodiment 2) Fig. 5 is a diagram showing the shape of clothing in the second embodiment. The clothing 20 shown in the same figure is an example of the bottoms of underwear such as underwear, and has openings 22 and 23 through which the upper body and the feet pass. In addition, the clothing 20 is joined by the joining part 21 of the armpit. Of course, the second embodiment follows the same context as the first embodiment, and the effects of the present invention can also be obtained.

Here, the mode for implementing the present invention will be described, but the present invention is not limited to the above-mentioned embodiment. For example, the same effect can be given to the openings of clothing such as hats, sleeves, clothing with cups, or other joints. [Example]

(Example 1) As shown in Figure 1 for general underwear clothing 1, apply a dot matrix adhesive 9 with a diameter of 0.8mm (diameter 1mm after bonding) to the opening 2 of the neckline along the end of the fabric, and then as shown in Figure 3 Fold back the fabric end a second time in this way. The adhesive 9 is in 3 rows, and the spacing of each row is 2mm apart from the spacing in the longitudinal direction of the coating. The width of the area coated with the adhesive 9 is 5 mm. The folded back width of the cloth end was 7 mm, and a common flat-type hot press was used for bonding to obtain a test piece of Example 1. In addition, the adhesive is a reactive hot-melt PU resin with a viscosity of about 12,000 mPa·s at 120°C. For the obtained test piece, the elongation under a load of 1.5 kg, the stress difference at 50% elongation between the joint and the fabric, the peel strength, the retention of the peel strength after high-temperature washing, and the sense of resistance at the joint elongation were evaluated. The results are shown in Table 1. The feeling of resistance when the joint is stretched is the uncomfortable feeling when the fabric including the joint is stretched by hand. The joint will stretch with the fabric when it is stretched and there is no resistance. The joint appears when the × is stretched. Revolt.

(Example 2) As shown in Fig. 1 for general underwear 1, a dot matrix adhesive 9 is applied along the fabric end of the armpit joint 5 with a diameter of 0.8 mm (diameter 1 mm after bonding). At this time, there are 3 rows of adhesives, and the spacing between each row is 2 mm, and the long-side distance of adhesive coating is 1.8 mm. As shown in FIG. 2, the structure of the junction part 5 is set so that the opposing fabric may overlap. The number of rows of the adhesive 9 and the coating pitch are the same as in Example 1, the width of the overlapping cloth is set to 7 mm, and the adhesive is bonded according to the same method as in Example 1 to obtain the test piece of Example 2. The results based on the same evaluation as in Example 1 are shown in Table 1.

(Example 3) The test piece of Example 3 was obtained in the same manner as Example 2 except that the pitch in the longitudinal direction of the application of the adhesive 9 was 1.6 mm. Evaluation was performed in the same manner as in Example 1. The results are shown in Table 1.

(Example 4) The test piece of Example 4 was obtained in the same manner as in Example 1, except that the diameter of the adhesive 9 was 0.4 mm (the diameter after bonding was 0.5 mm). Evaluation was performed in the same manner as in Example 1. The results are shown in Table 1.

(Comparative example 1) Regarding general underwear as shown in FIG. 1 for general sales, the joint part of the armpit is an underwear joined by a band-shaped adhesive, and the joint part of the armpit is used as a test piece of Comparative Example 1.

(Comparative example 2) For general sales of general underwear as shown in Figure 5, the joint 21 of the armpits is configured to overlap as shown in Figure 2. A dot matrix adhesive with a diameter of 2.0mm is applied in a 5mm wide area, and two rows are applied. The junction part with a pitch of 2.0 mm in the longitudinal direction was used as a test piece of Comparative Example 2. Evaluation was performed in the same manner as in Example 1. The results are shown in Table 1.

(Comparative example 3) The comparative example 3 is generally sold under the general underwear as shown in FIG. Evaluation was performed in the same manner as in Example 1. The results are shown in Table 1.

(Comparative example 4) In Comparative Example 4, the test piece of Comparative Example 4 was obtained in the same manner as in Example 1, except that the pitch in the longitudinal direction of the adhesive application was 1.0 mm. Evaluation was performed in the same manner as in Example 1. The results are shown in Table 1.

[Table 1] (Table 1) Example 1 Example 2 Example 3 Example 4 Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4 Adhesive shape lattice lattice lattice lattice Belt (face) lattice Jagged lattice Joint structure Fold the fabric end in half overlapping overlapping Fold the fabric end in half overlapping overlapping overlapping Fold the fabric end in half Joint width mm 5.0 5.0 5.0 5.0 8.0 5.0 6.0 5.0 Adhesive spacing (length direction) mm 2.0 1.8 1.6 2.0 - 2.0 2.5 1.0 Adhesive diameter (width) mm 1.0 1.0 1.0 0.5 8.0mm wide 2.0 1.0mm wide 1.0 Adhesive area ratio % 23.6% 26.1% 29.4% 5.9% 100.0% 62.8% 43.0% 47.1% Stretching rate under 1.5kg load % 175% 111% 102% 176% 110% 104% 203% 155% The stress difference between the joint and the fabric at 50% stretch % 18.4% 22.0% 24.2% 11.5% 70.2% 53.8% 47.1% 32.4% Conversion value of peel strength N/cm 21.6 22.0 22.0 8.8 8.6 31.4 24.2 23.5 Peel strength retention rate after washing % 81.8% 80.5% 81.2% 75.0% 64.3% 75.0% 87.0% 81.0% The sense of resistance when the joint is stretched ○ ○ ○ ○ X X X X

1: clothing 2: The opening through which the head passes 3: The opening through which the arm passes 4: The opening through which the upper body passes 5: Axillary junction 6: Shoulder joint 7: Cuff link joint 8, 8a, 18: cloth 9: Adhesive 10, 16: The direction of the long side of the joint 11, 17: The parallel direction that joins the long side direction 12: Joint width 13: Spacing of adhesive attachment 20: Clothing 21: Joint of the armpit 22: The opening through which the upper body passes 23: The opening through which the foot passes

Fig. 1 is an external view of clothing in the first embodiment. Fig. 2 is a schematic view of the joint part of the armpit of the garment shown in Fig. 1. Fig. 3 is a view of an opening joining portion through which the arm portion of the clothing shown in Fig. 1 passes. Fig. 4 is a schematic diagram of the attachment pattern of the adhesive disposed on the joint part. Fig. 5 is an external view of clothing in the second embodiment.

1: clothing

2: The opening through which the head passes

3: The opening through which the arm passes

4: The opening through which the upper body passes

5: Axillary junction

6: Shoulder joint

7: Cuff link joint

Claims (5)

A kind of clothing, which is composed of stretchable fabrics and has a joint between the fabrics by using a bonding agent; wherein, The stress difference between the 50% extension in the direction of the long side of the joint and the stress difference between the fabric fixed by the joint at 50% extension in the direction parallel to the direction of the long side of the joint is within 30%. The clothing according to claim 1, wherein the bonding portion is fixedly bonded by a lattice-shaped bonding agent arranged in a single row or multiple rows, and the area ratio of the bonding agent of the bonding portion is less than 35%. The garment according to claim 1, wherein the peel strength when the joint portion is torn and peeled in the longitudinal direction is 10 N/cm or more. The garments according to claim 1, wherein after washing at a high temperature of 92°C, the peeling strength in the direction of the joined long edges is 75% or more of the peeling strength before washing. The clothing according to any one of claims 1 to 4, wherein the above-mentioned joint is an opening through which the wearer's body part passes, and, The opening is composed of a structure in which the cloth end is folded back twice, and the cloth end and the cloth body are fixedly bonded by a dot matrix adhesive attached in a single row or multiple rows along the cloth end.

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