Knitted fabrics and clothes

Abstract

To provide a knitted fabric containing wool that possesses a fray-stopping function and is less likely to pill.SOLUTION: A knitted fabric possesses a fray-stopping function and is knitted using a first yarn and a second yarn. The first yarn comprises wool. The second yarn is composed of elastic yarn with thermal fusion properties. The second yarn is melted by heat setting, thereby imparting a fray-stopping function to the knit fabric. The proportion of the second yarn in the knitted fabric is 5% or more.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to knitted fabrics and garments. [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] Wool is known for its excellent heat retention, water absorption, and moisture retention properties. However, wool generally has the disadvantage of being prone to pilling.

[0005] An object of the present invention is to provide a knitted fabric containing wool, which has a fray-preventing function and is less likely to pill, and to provide clothing made from the knitted fabric. [Means for solving the problem]

[0006] Item 1. A knitted fabric having a fray prevention function, knitted with a first yarn and a second yarn, wherein the first yarn contains wool, and the second yarn is made of an elastic yarn having heat fusibility, and the second yarn is melted by a heat setting process to impart the fray prevention function to the knitted fabric, and the proportion of the second yarn in the knitted fabric is 5% or more.

[0007] Item 2. The knitted fabric according to Item 1, wherein the product of the number of stitches per half inch in the course direction and the number of stitches per half inch in the wale direction is 450 or more.

[0008] Item 3. A garment made from the knitted fabric according to item 1 or 2 and having raw edges. [Effects of the Invention]

[0009] According to the present invention, there is provided a knitted fabric containing wool, which has a fray-preventing function and is resistant to pilling. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 2 is a diagram showing the structure of a knitted fabric according to one embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] A knitted fabric according to one embodiment of the present invention and a garment made therefrom will be described below 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.

[0012] [1. Knitted fabric composition] The knitted fabric 1 according to this embodiment is a fabric that can be preferably used to make clothing, particularly underwear. FIG. 1 is a diagram showing the structure of the knitted fabric 1. As shown in the figure, the knitted fabric 1 is knitted using a first yarn 10 and a second yarn 20. In this embodiment, the knitted fabric 1 is knitted by plating knitting, with the first yarn 10 as the ground yarn and the second yarn 20 as the plated yarn. Therefore, in the knitted fabric 1's face knit portion, the ground yarn (first yarn 10) mainly appears on the outside, and in the knitted fabric's purl knit portion, the plated yarn (second yarn 20) mainly appears on the outside. In FIG. 1, for ease of viewing, the first yarn 10 is shown in white and the second yarn 20 is shown in gray. However, the yarns 10 and 20 may be the same color or different colors.

[0013] In the example of FIG. 1, the knitted fabric 1 is a flat knitted fabric and is rib knitted. However, this is not limiting, and the knitted fabric 1 may be knitted using other knitting methods, for example, jersey knitting. In the case of rib knitting, ribs are formed by knit stitches that are connected vertically, and stripes of purl stitches are formed between the ribs. In the example of FIG. 1, knit stitches and purl stitches are arranged alternately with one stitch each (1×1 rib knitting), but at least one of the knit stitches and purl stitches may be arranged with multiple stitches in succession (n×m rib knitting, where at least one of n and m is an integer of 2 or more), or the knit stitches and purl stitches may be arranged alternately with different numbers of stitches each (n×m rib knitting, where n and m are different integers). In the case of rib knitting, where the knit stitches and purl stitches are arranged alternately with the same number of stitches each, the front and back of the knitted fabric 1 have the same appearance. In Figure 1, knitted fabric 1 is shown in a plan view, so knit stitches and purl stitches are equally noticeable, but in reality, the ribs made by the knit stitches may protrude forward (outward) from the purl stitches sandwiched between the ribs. Therefore, in this embodiment, both the front and back surfaces of knitted fabric 1 may have an appearance in which the ground yarn (first yarn 10) stands out. On the other hand, in the case of plain knitting, knitted fabric 1 has knit stitches lined up on the front surface, with the ground yarn (first yarn 10) mainly visible, and purl stitches lined up on the back surface of knitted fabric 1, with the plating yarn (second yarn 20) mainly visible.

[0014] The knitted fabric 1 is a knitted fabric having a fray-preventing function. The second yarn 20 is made of an elastic yarn having heat-fusible properties, and the second yarn 20 is melted by a heat-setting process, thereby imparting a fray-preventing function to the knitted fabric 1. The second yarn 20 is fused to the first yarn 10. Although not limited thereto, the temperature of the heat-setting process can be approximately 160°C.

[0015] The raw material of the second yarn 20 is typically polyurethane, but is not limited to this example. For example, the raw material of the second yarn 20 can also be a polystyrene-based elastomer. The second yarn 20 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 20 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 20 is typically a filament yarn, and may be a multifilament yarn, but is preferably a monofilament yarn.

[0016] The first yarn 10 is typically a spun yarn. The first yarn 10 is a yarn containing wool. Wool has excellent heat retention, water absorption, and moisture retention properties. Therefore, the knitted fabric 1 into which the first yarn 10 is knitted also has excellent heat retention, water absorption, and moisture retention properties. On the other hand, wool is generally composed of short fibers and has a larger fiber diameter than cotton, acrylic, etc. Therefore, wool is prone to pilling and fuzzing. Fuzzing and pilling can cause a poor wearing feel, such as an itchy feeling when touching the skin, and can also deteriorate the appearance and reduce the quality of the fabric. However, the second yarn 20 is knitted into the knitted fabric 1 together with the first yarn 10. Therefore, the first yarn 10 is pulled by the elastic force of the second yarn 20 and contracts together with the second yarn 20. As a result, the knitted fabric 1 has a tighter stitch, which reduces fuzzing and makes it less likely to pill.

[0017] The proportion (weight) of the second yarn 20 in the knitted fabric 1 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 stitches of the knitted fabric 1 are effectively closed, and the occurrence of pilling and fuzzing is effectively suppressed. On the other hand, the proportion (weight) of the second yarn 20 in the knitted fabric 1 is preferably 20% or less, more preferably 15% or less, even more preferably 11% or less, and even more preferably 10% or less.

[0018] The first yarn 10 may be 100% wool, or may be mixed with other materials to improve functionality. Materials other than wool contained in the first yarn 10 may be chemical fibers or natural fibers. Examples of chemical fibers contained in the first yarn 10 include synthetic fibers such as nylon, polyester, acrylic, and polyurethane, and regenerated fibers such as rayon and cupra. Examples of natural fibers contained in the first yarn 10 include plant fibers such as cotton and hemp, and animal fibers such as raw silk, silk, and cashmere.

[0019] Wool generally has the drawbacks of being weaker (more likely to break) and shrinking easily in washing compared to chemical fibers (especially synthetic fibers). These drawbacks can be overcome by blending a material other than wool into the first yarn 10. Blending a material other than wool into the first yarn 10 also allows the first yarn 10 to acquire the properties of the material other than wool. While various materials other than wool can be blended into the first yarn 10, as in the above-described example, blending acrylic, for example, is preferred among the above-described examples. Blending acrylic into the first yarn 10 allows the first yarn 10 and the knitted fabric 1 containing the same to have a fluffy, bulky, and soft texture. Blending acrylic into the first yarn 10 also allows the first yarn 10 and the knitted fabric 1 containing the same to have increased strength, reduced shrinkage and shape loss in washing, improved stretchability and elastic recovery, reduced wrinkle resistance, reduced itchiness, and improved chemical resistance and insect resistance.

[0020] The first yarn 10 may be a blended yarn, particularly a spun twisted yarn. As a preferred example, the first yarn 10 may be a spun twisted yarn made of wool and acrylic.

[0021] The proportion (weight) of wool contained in the first yarns 10 is preferably 10% or more, more preferably 12% or more, even more preferably 15% or more, and still more preferably 18% or more. The proportion (weight) of wool contained in the first yarns 10 is preferably 50% or less, more preferably 40% or less, and even more preferably 30% or less.

[0022] The density in the course direction per half inch of the knitted fabric 1 is defined as Dc ( / 0.5 inch), and the density in the wale direction per half inch of the knitted fabric 1 is defined as Dw ( / 0.5 inch). In this case, it is preferable that Dc≧25, more preferably Dc≧30, and even more preferably Dc≧35. It is also preferable that Dw≧17.0, and more preferably Dw≧17.5. It is also preferable that Dc×Dw≧450, more preferably Dc×Dw≧500, even more preferably Dc×Dw≧550, more preferably Dc×Dw≧600, and even more preferably Dc×Dw≧650 (where "×" represents a product). When the above numerical conditions are met, the stitches of the knitted fabric 1 are effectively dense, and the occurrence of pilling and fuzzing is effectively suppressed.

[0023] The weight of knitted fabric 1 is 180 g / m 2 It is preferable that the thickness is 190 g / m or more. 2 More preferably, it is 200 g / m or more. 2 More preferably, it is 210 g / m or more. 2 More preferably, it is equal to or greater than this.

[0024] The thickness of the knitted fabric 1 is preferably 0.9 mm or more.

[0025] The stretch percentage of knitted fabric 1 in the longitudinal direction is Rsw, the stretch percentage in the transverse direction is Rsc, and the average of the stretch percentages in the longitudinal and transverse directions is Rs_ave (= (Rsw + Rsc) / 2). In this case, it is preferable that Rsw ≧ 15%, more preferably that Rsw ≧ 20%, even more preferably that Rsw ≧ 25%, and even more preferably that Rsw ≧ 30%. It is also preferable that Rsc ≧ 70%. It is also preferable that Rs_ave ≧ 50%. When the above numerical conditions are met, clothing made from knitted fabric 1 will stretch appropriately, making the clothing easy to wear and allowing the wearer to move more easily.

[0026] The recovery rate in the vertical direction of knitted fabric 1 is Rrw, the recovery rate in the horizontal direction is Rrc, and the average of the recovery rates in the vertical and horizontal directions is Rr_ave (= (Rrw + Rrc) / 2). In this case, it is preferable that Rrw ≧ 60%, more preferably that Rrw ≧ 65%, even more preferably that Rrw ≧ 70%, and more preferably that Rrw ≧ 75%. It is also preferable that Rrc ≧ 60%, and more preferably that Rrc ≧ 65%. It is also preferable that Rr_ave ≧ 65%, and more preferably that Rr_ave ≧ 70%. When the above numerical conditions are met, a garment made from knitted fabric 1 will not remain stretched after it is taken off, will easily return to its original size before wearing, and will be less likely to lose its shape.

[0027] The above elongation and recovery rates are measured as follows and calculated according to the following formulas (1) and (2). 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 tester. 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) five times.

[0028] Elongation rate (%) = Elongation (mm) after applying a constant load (4.91 N) for the fifth time ÷ Original length (100 mm) × 100 (1) Recovery rate (%) = Work load (cJ) when the constant load (4.91 N) is removed for the fifth time ÷ Work load (cJ) when the constant load (4.91 N) is applied for the fifth time × 100 (2)

[0029] The rank of the knitted fabric 1 in the pilling test (JIS L 1076 Method A) is preferably 4 or more, and more preferably 4.5 or more.

[0030] The clot value (clo value) representing the thermal resistance value (heat retention) of the knitted fabric 1 is preferably 0.09 or more, and more preferably 0.10 or more.

[0031] [2. Clothing composition] From the knitted fabric 1 described above, garments with a raw edge specification, particularly underwear, can be made. A garment with a raw edge specification is a garment in which part or all of the edges of the garment are left raw. In raw edge garments, fray prevention by sewing or the like is omitted. Garments include tops and bottoms. The edges of garments refer to the neckline, cuffs and hem of tops, and the waist and hem of bottoms, and typically form openings. Tops refer to all garments worn on the upper body, including T-shirts, tank tops, camisoles, slips, bras, belly warmers, and other underwear. Bottoms refer to all garments worn on the lower body, including pants, shorts, leggings, tights, socks, and loincloths.

[0032] 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. [Example]

[0033] Examples of the present invention will be described below, but the present invention is not limited to the following examples.

[0034] Knitted fabrics according to Examples 1 to 3 were prepared. The knitted fabrics of Examples 1 to 3 were produced by rib knitting (1x1 rib knitting) the raw yarns shown in Table 1. More specifically, the knitted fabrics of Examples 1 to 3 were plated knitted using one Yarn 1 shown in Table 1 as the ground yarn and one Yarn 2 as the plated yarn. Yarn 1 of Examples 1 to 3 was a spinned twisted yarn. The overall composition of the knitted fabrics of Examples 1 to 3 is as shown in Table 1.

[0035] Knitted fabrics according to Comparative Examples 1 and 2 were prepared. The knitted fabrics of Comparative Examples 1 and 2 were produced by rib knitting (1x1 rib knitting) the raw yarns shown in Table 1. In Comparative Example 1, four strands were taken, consisting of three yarns 1 and one yarn 3. In Comparative Example 2, one yarn 1 was knitted in a zoki pattern.

[0036] [Table 1]

[0037] The knitted fabrics according to Examples 1 to 3 and Comparative Examples 1 and 2 were measured for density Dc, density Dw, Dc×Dw, basis weight, fabric thickness, elongation rates Rsw, Rsc, Rs_ave, recovery rates Rrw, Rrc, Rr_ave, claw value, and grade in a pilling test (JIS L 1076 Method A). The results are shown in Table 1.

[0038] The results in Table 1 confirm that Examples 1 to 3, which contain elastic yarn (polyurethane yarn) and have a tight knit, are less likely to pill than Comparison Examples 1 and 2, which do not contain elastic yarn (polyurethane yarn) and have a loose knit. [Explanation of symbols]

[0039] 1 Knitted fabric 10 First thread 20 Second thread

Claims

1. A knitted fabric having a fray prevention function, knitted with a first yarn and a second yarn, the first yarn comprises wool; 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 proportion of the second yarn in the knitted fabric is 5% or more. Knitted fabric.

2. The product of the number of degrees per half inch in the course direction and the number of degrees per half inch in the wale direction is 450 or more. The knitted fabric according to claim 1.

3. A garment made from the knitted fabric of claim 1 or 2, having raw edges.

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