Garment and knitted fabric
A knitted fabric with a fray prevention function, using a heat-fused elastic yarn and diagonal cutting, addresses the curling issue in plain knit fabrics, ensuring the quality of raw-edged garments.
Patent Information
- Application Number
- JP2024110760
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2026-01-23
AI Technical Summary
Plain knit fabrics tend to curl at their edges, making them unsuitable for garments with a raw-edged finish, which degrades the quality of the garment.
A knitted fabric is created using a first yarn and a second elastic yarn with heat fusion properties, where the second yarn is melted by heat setting to impart a fray prevention function, and the fabric is cut diagonally to align the vertical direction of the garment with the horizontal direction of the fabric, reducing curling.
The solution prevents curling at the edges of the garment, maintaining its quality and preventing fraying, even when stretched or washed.
Smart Images

Figure 2026010782000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to garments and knitted fabrics. [Background technology]
[0002] Patent Document 1 discloses a knitted fabric having a fray-preventing function. The knitted fabric having a fray-preventing function can be used to make garments with a raw edge specification. Raw edge refers to a garment whose edges are not treated with a fray-preventing treatment such as sewing. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent No. 3983729 Summary of the Invention [Problem to be solved by the invention]
[0004] Incidentally, plain knit fabrics have a tendency for the edges of the knit fabric to curl (roll up). For this reason, plain knit fabrics are generally unsuitable for making garments with a raw-edged finish. This is because when a garment with a raw-edged finish is made from plain knit fabric, the edges of the hem, cuffs, neckline, etc. of the garment curl because no fraying is prevented, which could result in a decrease in the quality of the garment. However, plain knit fabrics have excellent properties that cannot be obtained with other knitting methods, such as being thin and light.
[0005] To provide a garment with a raw edge specification that is free from deterioration in quality due to curling of the ends that occurs in plain knitting, even though it is made from plain knitting fabric, and a knitted fabric suitable for making the garment. [Means for solving the problem]
[0006] Item 1. A garment made from a knitted fabric with a fray prevention function and having raw edges, The knitted fabric is knitted by plain knitting using a first yarn and a second yarn, The second yarn is made of an elastic yarn having heat fusion properties, and the second yarn is melted by heat setting processing, thereby imparting the fray prevention function to the knitted fabric, The vertical direction of the garment is aligned with the horizontal direction of the knitted fabric. clothing.
[0007] Item 2. The raw edge is along a cutting line obtained by diagonally cutting the knitted fabric. Item 1. The clothing described in item 1.
[0008] Item 3. The weight of the knitted fabric is 160 g / m 2 Item 3. The garment according to item 1 or 2, which is:
[0009] Item 4. The clothing according to any one of Items 1 to 3, wherein the proportion (by weight) of thermoplastic resin contained in the knitted fabric is 80% or more.
[0010] Item 5. A knitted fabric having a fray prevention function, The first yarn and the second yarn are knitted by plain knitting, The second yarn is made of an elastic yarn having heat fusion properties, and the second yarn is melted by heat setting processing, thereby imparting the fray prevention function to the knitted fabric, The elongation ratio obtained by dividing the smaller of the longitudinal elongation rate and the lateral elongation rate of the knitted fabric by the larger one is 0.8 or more. Knitted fabric. [Effects of the Invention]
[0011] According to the present invention, there are provided a garment with a raw edge specification that is made from a plain knit fabric but is prevented from suffering from deterioration in quality due to curling of the ends that occurs in plain knit, and a knit fabric suitable for making the garment. [Brief explanation of the drawings]
[0012] [Figure 1] FIG. 1 is a front view of a garment according to an embodiment in a worn state. [Figure 2] A diagram explaining the curling characteristics of jersey knit fabric. [Figure 3] FIG. 1 is a diagram showing clothing parts cut out from a knitted fabric according to one embodiment, viewed from the front side of the knitted fabric. DETAILED DESCRIPTION OF THE INVENTION
[0013] Hereinafter, a garment according to one embodiment of the present invention and a knitted fabric suitable for producing the garment will be described with reference to the drawings. Note that the drawings are drawn in a schematic manner with objects appropriately omitted or exaggerated for ease of understanding.
[0014] [1. Composition of clothing and knitted fabrics] FIG. 1 shows a front view of a garment 1 according to one embodiment. FIG. 1 is a front view of a man wearing the garment 1, and also shows part of the man's body. The garment 1 is a garment with raw edge specifications and has raw edge edges E1, E2. A raw edge garment is a garment in which some or all of the edges of the garment are left raw. The raw edge edges E1, E2 are not treated with fray prevention techniques such as sewing. However, because the garment 1 is made from a knitted fabric 2 that has a fray prevention function, the stitches of the knitted fabric 2 are configured to be less likely to fray even at the raw edge edges E1, E2.
[0015] Garment 1 is typically underwear. In the example of FIG. 1, garment 1 is a pair of men's shorts called boxer shorts. However, garment 1 can also be another type of garment. Garment 1 may be a top or bottoms. Tops refer to all upper-body clothing, including undergarments such as T-shirts, tank tops, camisoles, slips, bras, and belly warmers. Bottoms refer to all lower-body clothing, including undergarments such as pants, shorts, leggings, tights, socks, and trousers. The edges of garment 1 form openings such as the neckline, cuffs, and hem of tops, and the waist and hem of bottoms. When garment 1 is underwear, the raw edges E1 and E2 are not frayed, which has the advantage that the presence of garment 1 is less likely to show through outerwear.
[0016] The knitted fabric 2 is a fabric suitable for producing the garment 1. The knitted fabric 2 is knitted using a first yarn and a second yarn by plain knitting, which is a type of weft knitting. Therefore, the front surface of the knitted fabric 2 has knit stitches lined up, and the back surface of the knitted fabric 2 has purl stitches lined up. Because the knitted fabric 2 is knitted by plain knitting, it has the excellent properties of being thin and light.
[0017] Figure 2 is a diagram illustrating the curling characteristics of jersey knit fabric. While jersey knit fabric has the excellent properties described above, it also has the property that the edges of the fabric tend to curl (roll up), as shown in Figure 2. For this reason, jersey knit fabric is generally unsuitable for making garments with a raw-edged finish. This is because when raw-edged garments are made from jersey knit fabric, the raw-edged edges that have not been treated with fray prevention tend to curl, which could degrade the quality of the garment.
[0018] However, in the case of a plain knit fabric, as shown in FIG. 2, the vertical edges (top and bottom edges) curl from the back side to the front side, and the horizontal edges (left and right edges) curl from the front side to the back side. The inventors focused on this characteristic and constructed garment 1 so that the vertical direction of garment 1 is aligned with the horizontal direction of knitted fabric 2. Note that in the case of plain knit fabric, which is a type of weft knitting, the knitted fabric stretches more easily in the horizontal direction than in the vertical direction, so garments are generally made from plain knit fabric so that the horizontal direction of the garment is aligned with the horizontal direction of the knitted fabric. Here, the vertical and horizontal directions of garment 1 are defined based on the orientation of the body of a wearer wearing garment 1. In other words, the vertical direction of garment 1 means the up-and-down direction of the body, and the horizontal direction of garment 1 means the left-to-right direction of the body.
[0019] In the above configuration, when garment 1 is manufactured so that the front surface of knitted fabric 2 forms the outer surface of garment 1 and the back surface of knitted fabric 2 forms the inner surface of garment 1, the longitudinal edges of garment 1 tend to curl toward the inside of garment 1 (toward the back surface of knitted fabric 2). That is, the longitudinal edges of garment 1 that form openings such as the neckline, cuffs, hem, waist area, and hem tend to curl toward the inside of garment 1. Note that, as described below, when the second yarn is heat-set, such curling is relatively suppressed; however, curling may still occur if garment 1 stretches during wear. However, when a wearer puts on garment 1, the edges of garment 1 that curl inward naturally straighten out along the wearer's body. In particular, when garment 1 is a tight-fitting product such as boxer shorts, the curl is easily straightened out. Therefore, even if curling occurs at the edges of garment 1 due to the jersey knit, such curling naturally disappears when garment 1 is worn, preventing a deterioration in the quality of garment 1.
[0020] FIG. 3 is a view of garment 1 parts cut out from knitted fabric 2, viewed from the front side of knitted fabric 2. Typically, multiple sets of garment 1 parts are cut out from a single piece of knitted fabric 2. In the example of FIG. 1, the garment 1, which is a pair of boxer shorts, is composed of a body 11, a front gusset 12, a waistband 13, and a waist elastic 14. The body 11 is a part that covers the buttocks and thighs. The front gusset 12 is a part that covers the crotch area and forms a bulge. The front gusset 12 may be made of two pieces that are overlapped. The waistband 13 is a part that covers below the crotch area. The body 11, the front gusset 12, and the waistband 13 are cut out separately from knitted fabric 2 and connected by sewing, bonding, or the like. The waist elastic 14 is connected to the body 11 and the front gusset 12 by sewing, bonding, or the like along the waist opening formed by the body 11 and the front gusset 12. The garment 1 has two raw edge portions E1 and E2. The raw cut ends E1 and E2 form the hem openings through which the left and right thighs pass.
[0021] The contour line Lp4 of the body 11 shown in FIG. 3 is connected to the contour line Lt1 of the chic 13, the contour lines Lp5 and Lp6 of the body 11 are connected to the contour lines Lf1 and Lf2 of the front gusset 12, respectively, and the contour lines Lp7 and Lp8 of the body 11 are connected to the contour lines Lt2 and Lt3 of the chic 13, respectively. The contour lines Lf3 and Lf4 of the front gusset 12 are connected to each other, thereby forming a bulge in the front gusset 12. The contour line Lp1 of the body 11, together with the contour line Lt4 of the chic 13, forms the hem opening through which the left thigh passes. Similarly, the contour line Lp2 of the body 11, together with the contour line Lt5 of the chic 13, forms the hem opening through which the right thigh passes. The contour line Lp3 of the body 11, together with the contour line Lf5 of the front gusset 12, forms the waist area. Therefore, in the example of FIG. 3, the vertical direction of the garment 1, in other words, the vertical direction of each part of the garment 1 (body 11, front gusset 12, and hem 13) is aligned with the horizontal direction of the knitted fabric 2.
[0022] The edge of the raw cut end E1 is formed by the contour line Lp1 of the body 11 and the contour line Lt4 of the chic 13. As shown in FIG. 3, these contour lines Lp1, Lt4 extend at an angle to the knitting direction of the knitted fabric 2 (the horizontal or vertical direction of the knitted fabric 2). Therefore, the raw cut end E1 is along the cutting line (contour lines Lp1, Lt4) obtained by cutting the knitted fabric 2 diagonally with respect to the knitting direction. Similarly, the edge of the raw cut end E2 is formed by the contour line Lp2 of the body 11 and the contour line Lt5 of the chic 13. As shown in FIG. 3, these contour lines Lp2, Lt5 extend at an angle to the knitting direction of the knitted fabric 2. Therefore, the raw cut end E2 is along the cutting line (contour lines Lp2, Lt5) obtained by cutting the knitted fabric 2 diagonally with respect to the knitting direction. Therefore, the raw cut ends E1, E2 are formed along cutting lines that are cut at an angle with respect to the knitting direction of the knitted fabric 2. As a result, the raw cut ends E1, E2 are less likely to fray even when the garment 1 stretches when worn or is washed, and pilling is less noticeable. This is because cutting the knitted fabric 2 at an angle with respect to the knitting direction reduces the number of loops cut in the same course, making the raw cut ends E1, E2 less likely to fray. From this perspective, when the angle of the cutting line that forms the edge of the raw cut ends E1, E2 with respect to the longitudinal direction of the knitted fabric 2 is θ, it is preferable that it is 10°≦θ≦80°, more preferably 20°≦θ≦70°, even more preferably 30°≦θ≦60°, and even more preferably 40°≦θ≦50°.
[0023] In this embodiment, the knitted fabric 2 is knitted by plating knitting using the first yarn as the ground yarn and the second yarn as the plated yarn. Therefore, on the front side of the knitted fabric 2 where the knit stitches are lined up, the ground yarn (first yarn) mainly appears on the outside, and on the back side of the knitted fabric 2 where the purl stitches are lined up, the plated yarn (second yarn) mainly appears on the outside.
[0024] The second yarn is made of an elastic yarn having heat-fusible properties, and when the second yarn is melted by heat setting processing, an anti-fraying function is imparted to the knitted fabric 2. The second yarn is fused to the first yarn.
[0025] The raw material of the second yarn is typically polyurethane, and particularly preferably thermoplastic polyurethane, but is not limited to this example. For example, the raw material of the second yarn can also be a polystyrene-based elastomer. The second yarn can be composed only of the raw materials exemplified here (e.g., 100% polyurethane), or the raw materials exemplified here may be mixed with other raw materials. However, the second yarn preferably contains at least 50% or more of the raw materials exemplified here, more preferably 70% or more, even more preferably 90% or more, and even more preferably 95% or more. The second yarn is typically a filament yarn, and may be a multifilament yarn, but is preferably a monofilament yarn.
[0026] The proportion (weight) of the second yarn contained in the knitted fabric 2 is preferably 5% or more, more preferably 6% or more, even more preferably 7% or more, more preferably 8% or more, and even more preferably 9% or more. When the above numerical conditions are satisfied, the fray prevention function of the knitted fabric 2 is effectively exhibited. On the other hand, the proportion (weight) of the second yarn contained in the knitted fabric 2 is preferably 20% or less, more preferably 15% or less, and even more preferably 10% or less.
[0027] The first yarn is typically a spun yarn and is an inelastic yarn. The raw material of the first yarn may be a chemical fiber or a natural fiber. Examples of chemical fibers contained in the first yarn include synthetic fibers such as polyester, acrylic, and nylon, and regenerated fibers such as rayon and cupra. Examples of natural fibers contained in the first yarn include plant fibers such as cotton and hemp, and animal fibers such as wool, silk, and animal hair. Animal hair includes cashmere, mohair, camel, alpaca, and angora. The first yarn may be made from a single type of raw material, or may be a blended yarn.
[0028] The proportion (by weight) of the thermoplastic resin contained in the knitted fabric 2 (the total of the thermoplastic resins contained in the first yarn and the second yarn) is preferably 80% or more, more preferably 85% or more, even more preferably 90% or more, and still more preferably 95% or more. When the above numerical conditions are met, the thermoplastic resin contained in the knitted fabric 2 is heat-set or melted, thereby more firmly fixing the knitted fabric 2 and more reliably preventing curling of the knitted fabric 2 at the raw cut ends E1, E2.
[0029] The stitch density per half inch of the knitted fabric 2 in the course direction is Dc ( / 0.5 inch), and the stitch density per half inch of the knitted fabric 2 in the wale direction is Dw ( / 0.5 inch). In this case, it is preferable that Dc≧25, more preferably that Dc≧30, and even more preferably that Dc≧35. It is also preferable that Dw≧15, more preferably that Dw≧16, even more preferably that Dw≧17, and even more preferably that Dw≧18. When the above numerical conditions are satisfied, the stitches of the knitted fabric 2 are dense, and fraying at the raw end portions E1 and E2 is more effectively suppressed.
[0030] The weight of knitted fabric 2 is 160 g / m 2 It is preferable that the thickness is less than 150 g / m 2 More preferably, it is 140 g / m or less. 2 More preferably, it is 130 g / m or less. 2 More preferably, it is 120 g / m or less. 2 It is more preferable that the following conditions are satisfied: When the above numerical conditions are satisfied, the knitted fabric 2 becomes light, and thus the garment 1 that is light and comfortable to wear is produced.
[0031] The thickness of the knitted fabric 2 is preferably 0.8 mm or less, more preferably 0.7 mm or less, and even more preferably 0.6 mm or less. When these numerical conditions are satisfied, the knitted fabric 2 is thin, and thus the garment 1 that is light and comfortable to wear is produced.
[0032] The stretch percentage of the knitted fabric 2 in the longitudinal direction is Rsw, and the stretch percentage in the transverse direction is Rsc. Here, Rsw ≧ 35% is preferable, Rsw ≧ 40% is more preferable, Rsw ≧ 45% is even more preferable, Rsw ≧ 50% is even more preferable, Rsw ≧ 55% is even more preferable, and Rsw ≧ 60% is even more preferable. Also, Rsc ≧ 35% is preferable, Rsc ≧ 40% is more preferable, Rsc ≧ 45% is even more preferable, Rsc ≧ 50% is even more preferable, Rsc ≧ 55% is even more preferable, and Rsc ≧ 60% is even more preferable. When the above numerical conditions are satisfied, the garment 1 made from the knitted fabric 2 stretches appropriately, making the garment 1 easy to wear and allowing the wearer to move easily.
[0033] Furthermore, the elongation ratio obtained by dividing the smaller of Rsw and Rsc by the larger one is defined as R1, and the elongation difference obtained by subtracting the smaller of Rsw and Rsc from the larger one is defined as R2. In this case, R1 is preferably ≧0.8, more preferably R1 ≧0.85, even more preferably R1 ≧0.9, and even more preferably R1 ≧0.95. Furthermore, R2 is preferably ≦15%, more preferably R2 ≦10%, even more preferably R2 ≦5%, more preferably R2 ≦3%, and even more preferably R2 ≦1.5%.
[0034] Generally, a jersey knitted fabric, which is a type of weft knitting, tends to have a higher stretch rate in the horizontal direction than in the vertical direction. Therefore, if the vertical direction of a garment is aligned with the horizontal direction of the knitted fabric, it is relatively easy to ensure the vertical stretch rate of the garment, but there is a risk that the horizontal stretch rate will not be sufficiently ensured. In this regard, if the stretch rate ratio R1 satisfies the above numerical conditions, the difference between the vertical stretch rate Rsw and the horizontal stretch rate Rsc of the knitted fabric 2 will be small. Therefore, it will be easier to pattern each part of the garment 1 (the body 11, the front gusset 12, and the thick hem 13) on a single knitted fabric 2 so that the vertical direction of the garment 1 is aligned with the horizontal direction of the knitted fabric 2. Therefore, if the stretch rate ratio R1 satisfies the above numerical conditions, it will be easier to produce the garment 1 from the knitted fabric 2. From a similar perspective, it is preferable that the stretch rate difference R2 also satisfies the above numerical conditions.
[0035] The above elongation rates are measured as follows and calculated according to the following formula (1). First, the measurement location is a test room (JIS L 0105) under standard conditions of room temperature 20±2°C and relative humidity 65±4%. The measuring device is a tensile testing machine. The sample size is 200 mm in length and 100 mm in width (taken in the course direction and wale direction). The distance between chucks is 100 mm. The tensile speed is 200 mm / min. The sample is pulled to 4.91 N and then released (returning the sample to its original position), and this is repeated five times.
[0036] Elongation rate (%) = Elongation (mm) after applying a constant load (4.91 N) for the fifth time ÷ Original length (100 mm) × 100 (1)
[0037] [2. Features] In the above embodiment, the vertical direction of the garment 1 is aligned with the horizontal direction of the knitted fabric 2. Therefore, the raw edge portions E1, E2 of the garment 1 are formed by the horizontal edges of the knitted fabric 2 of the parts 11 to 13 of the garment 1 that are cut out from the knitted fabric 2. As a result, the raw edge portions E1, E2 tend to curl toward the inside of the garment 1. However, such inward curling is naturally straightened and eliminated when the garment 1 is worn. Therefore, even though the garment 1 is made from a plain knitted fabric 2, deterioration in quality due to curling of the raw edge portions E1, E2 that occurs with plain knitting is prevented. [3. Modifications]
[0038] Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the present invention. For example, the following modifications are possible. Furthermore, the gist of the following modifications can be combined as appropriate.
[0039] [3-1] In the above embodiment, the vertical direction of all parts (body 11, front gusset 12, and seam 13) of the garment 1 made of the knitted fabric 2 is configured to be aligned with the horizontal direction of the knitted fabric 2. However, the vertical direction of only some parts of the garment 1 made of the knitted fabric 2 may be configured to be aligned with the horizontal direction of the knitted fabric 2. For example, only the vertical direction of the body 11, which occupies the majority of the area of the garment 1, may be configured to be aligned with the horizontal direction of the knitted fabric 2.
[0040] [3-2] In the above embodiment, the entire periphery of the edge of the raw cut end E1 follows the cutting line (contour lines Lp1, Lt4) that cuts the knitted fabric 2 diagonally. However, the edge of the raw cut end E1 may partially follow the cutting line that cuts the knitted fabric 2 diagonally. For example, of the contour lines Lp1, Lt4 that serve as cutting lines that form the edge of the raw cut end E1, the contour line Lp1 may extend at an angle to the knitting direction of the knitted fabric 2 (the horizontal or vertical direction of the knitted fabric 2), but the contour line Lt4 may extend parallel to the knitting direction of the knitted fabric 2. Similarly, the edge of the raw cut end E2 may also partially follow the cutting line that cuts the knitted fabric 2 diagonally. For example, of the contour lines Lp2, Lt5 that serve as cutting lines that form the edge of the raw cut end E2, the contour line Lp2 may extend at an angle to the knitting direction of the knitted fabric 2, but the contour line Lt5 may extend parallel to the knitting direction of the knitted fabric 2. [Example]
[0041] Examples of the present invention will be described below, but the present invention is not limited to the following examples.
[0042] Knitted fabrics according to Examples 1 to 8 were prepared. The knitted fabrics of Examples 1 to 8 were produced by plain knitting the raw yarns shown in Table 1. More specifically, the knitted fabrics of Examples 1 to 8 were plated knitted using one Yarn 1 shown in Table 1 as the ground yarn and one Yarn 3 as the plated yarn. However, in Example 4, in addition to one Yarn 1, one Yarn 2 was also used as the ground yarn, resulting in two ground yarns. The composition of the entire knitted fabrics of Examples 1 to 8 is as shown in Table 1. Note that polyester, acrylic, and polyurethane are thermoplastic resins, and Table 1 also shows the proportion (by weight) of the thermoplastic resin contained in the knitted fabrics of Examples 1 to 8.
[0043] [Table 1]
[0044] The knitted fabrics of Examples 1 to 8 were measured for density Dc, density Dw, basis weight, fabric thickness, elongation rates Rsw, Rsc, elongation rate ratio R1, and elongation rate difference R2. The results are shown in Table 1.
[0045] Garments (boxer shorts) similar to those in the above embodiment were produced from each of the knitted fabrics of Examples 1 to 8, and the raw edge portions were observed. As a result, almost no fraying occurred at the raw edge portions of all the garments. Furthermore, even after the garments were worn (i.e., after the garments were lightly stretched and shrunk), almost no fraying occurred at the raw edge portions. Furthermore, no bulkiness occurred due to curling of the raw edge portions when the garments were worn. [Explanation of symbols]
[0046] 1. Clothing 2 Knitted fabric 11 Body 12 Front gusset 13 Chic 14 Elastic waistband E1, E2 raw edge (hem) Lp1~Lp8 Contour line (best time to see) Lf1~Lf5 Outline (front gusset) Lt1~Lt5 Contour Line (Chic)
Claims
1. A garment made from a knitted fabric having a fray prevention function and having raw edges, The knitted fabric is knitted by plain knitting using a first yarn and a second yarn, The second yarn is made of an elastic yarn having heat fusion properties, and the second yarn is melted by heat setting processing, thereby imparting the fray prevention function to the knitted fabric, The vertical direction of the garment is aligned with the horizontal direction of the knitted fabric. clothing.
2. The raw edge is along a cutting line formed by diagonally cutting the knitted fabric. The garment of claim 1.
3. The weight of the knitted fabric is 160 g / m 2 Below is the 3. The garment according to claim 1 or 2.
4. The proportion (by weight) of thermoplastic resin contained in the knitted fabric is 80% or more, 3. The garment according to claim 1 or 2.
5. A knitted fabric having a fray prevention function, The fabric is knitted by plain knitting using the first yarn and the second yarn, The second yarn is made of an elastic yarn having heat fusion properties, and the second yarn is melted by heat setting processing, thereby imparting the fray prevention function to the knitted fabric, The elongation ratio obtained by dividing the smaller of the longitudinal elongation rate and the lateral elongation rate of the knitted fabric by the larger one is 0.8 or more. Knitted fabric.
Citation Information
Patent Citations
Garments with raw cut openings
JP3983729B2