Knitted fabric and garment using said knitted fabric

Abstract

Provided is a knitted fabric especially excellent in lightweight properties and water absorption as compared with a conventional product. This knitted fabric is formed of cotton yarn. The twist coefficient of the cotton yarn is 2.0-3.4 (feature 1). The English cotton count of the cotton yarn is 60 to 100 (corresponding to a single yarn) (feature 2). The knitted fabric is formed of two or more layers of a jersey weave (feature 3). The fabric weight of the knitted fabric is 150 g / m2 or less (feature 4). The saturated water absorption amount of the knitted fabric is at least four times the fabric weight (feature 5). This knitted fabric is suitable for clothing fabric.

Description

Knitted fabric and clothing made from said knitted fabric

[0001] The present invention relates to a knitted fabric that is particularly light in weight and has excellent water absorbency compared to conventional products.

[0002] Woven and knitted fabrics are used for clothing. Woven fabrics are formed by the intersection of warp and weft threads. Knitted fabrics are formed by repeatedly creating continuous loops in a single thread and then entangling threads in the loops to create loops.

[0003] Compared to woven fabrics, knitted fabrics are more stretchy, breathable, and soft to the touch, and these properties are utilized for knitting fabrics in clothing.

[0004] There are two types of knitting: warp knitting and weft knitting. In warp knitting, many warp threads are arranged in parallel and knitted vertically. In weft knitting, a single thread is knitted horizontally, intertwining the loops to create stitches. Circular knitting is a form of weft knitting.

[0005] Although various materials can be used for knitted fabrics, they are often made from cotton yarn because of their pleasant feel against the skin (see, for example, Patent Document 1).

[0006] Japanese Patent Application Publication No. 2023-150772

[0007] As described above, knitted fabrics made from cotton yarn are suitable for clothing. However, lightweight fabrics are important for clothing applications. In particular, when used for loungewear or sleepwear, the weight of the fabric can be a burden to the wearer, making it difficult to relax.

[0008] Lighter weight can be achieved by making the knitted fabric thinner, but thin fabrics have significantly lower water absorbency. In other words, it is difficult to achieve both light weight and water absorbency.

[0009] The present invention is intended to solve the above problems, and has an object to provide a knitted fabric that is lightweight yet has excellent water absorbency, and a garment using the knitted fabric.

[0010] In order to solve the above problems, the present invention provides a knitted fabric made of cotton yarn. The twist coefficient of the cotton yarn is 2.0 or more and 3.4 or less. The cotton yarn has an English cotton count of 60 to 100 (equivalent to a single yarn). The knitted fabric is formed from two or more layers of plain weave. The fabric mass is 150 g / m2 or less. The saturated water absorption is four or more times the fabric mass.

[0011] Saturated water absorption is the upper limit of the amount of water that a fabric can absorb, but in the case of clothing, if it takes too long to absorb water, it can lead to discomfort, so for convenience, the saturated water absorption is defined here as the amount of water absorbed within 180 seconds. Generally, for cotton fabrics for clothing with a fabric mass of 200 g / m2 or less, it takes 60 to 120 seconds to reach saturated water absorption, and fabrics that take longer than that do not give the user the feeling that the fabric is absorbing moisture.

[0012] This allows for excellent water absorption while maintaining light weight.

[0013] Preferably, the cotton yarn is formed by untwisting a twisted dissolving yarn by dissolving it.

[0014] This results in a weakly twisted cotton yarn.

[0015] Preferably, the untwisting rate of the soluble yarn is 15-50%.

[0016] This results in a weakly twisted cotton yarn with a twist coefficient of 2.0 or more and 3.4 or less.

[0017] Preferably, the two or more layers of plain stitch fabric include a first plain stitch fabric and a second plain stitch fabric, and the back side of the first plain stitch fabric and the back side of the second plain stitch fabric are bonded together.

[0018] This allows for even better water absorption.

[0019] The present invention, which aims to solve the above-mentioned problems, provides a method for producing the above-described knitted fabric, which comprises cross-twisting a cotton yarn having a twist coefficient of more than 3.4 with a dissolving yarn to form a twisted yarn, forming a plain weave of two or more layers with the twisted yarn, dissolving the dissolving yarn, and untwisting the cotton yarn.

[0020] This results in a weakly twisted yarn with a twist coefficient of 2.0 or more and 3.4 or less.

[0021] To solve the above problems, the present invention provides a knitted fabric made of cotton yarn. The twist coefficient of the cotton yarn is 2.0 or more and 3.4 or less. The cotton yarn has an English cotton count of 60 to 100 (equivalent to a single yarn). The knitted fabric is formed from one or more layers of interlock weave. The fabric mass is 150 g / m2 or less. The saturated water absorption is four or more times the fabric mass.

[0022] This allows for excellent water absorption while maintaining light weight.

[0023] In order to solve the above problems, the garment of the present invention is formed from the above knitted fabric.

[0024] This allows sweat from the body to be quickly absorbed and removed from inside the garment, preventing the wearer from feeling sticky or stuffy due to sweat and maintaining a refreshing feeling.

[0025] The knitted fabric of the present invention has excellent water absorption while maintaining its light weight, i.e., a high water absorption capacity and a fast water absorption rate.

[0026] The water absorption ratio is the ratio of the amount of water absorbed to the mass of the fabric. The water absorption rate is the rate at which the fabric absorbs water. Here, it is expressed as the amount of water absorbed by the fabric per second, and the maximum rate recorded during measurement is used as the water absorption rate.

[0027] Clothing made using the knitted fabric of the present invention can quickly absorb sweat from the body and remove it from inside the clothing, preventing the wearer from feeling sticky or stuffy due to sweat and maintaining a refreshing feeling.

[0028] Comparison diagram of general cotton twist yarn and weakly twisted yarn Image of weakly twisted yarn formation Comparison diagram of fine count knitted fabric and thick count knitted fabric Image of double jersey construction Comparison diagram of water absorption capacity between Example 1 and Comparative Example 1 Comparison diagram of water absorption capacity between Example 2 and Comparative Example 2 Image of interlock construction Comparison diagram of water absorption capacity between Example 3 and Comparative Example 3 Reference example Water absorption capacity Change in clothing environment (humidity) over time Change in clothing environment (temperature) over time

[0029] Overview: This invention relates to a knitted fabric made from cotton yarn. Cotton yarn is formed by twisting cotton fibers. Unless otherwise specified, the fabric is made from 100% cotton fibers. However, if the fabric can be considered to be substantially 100% cotton fibers (for example, 90% or more cotton), it is treated as a cotton yarn.

[0030] The twist coefficient K of the cotton yarn of this invention is between 2.0 and 3.4 (Feature 1). In other words, a weakly twisted yarn is used. Note that the coefficient K of ordinary cotton twisted yarn (hereinafter referred to as ordinary twisted yarn) is between 3.6 and 4.3. The twist coefficient is defined as the number of twists per unit length divided by the square root of the English yarn count.

[0031] Figure 1 shows a cross-sectional comparison of a regular twist yarn (Figure 1A) and a weak twist yarn (Figure 1B). They are made from the same amount of cotton fiber and have the same nominal yarn count.

[0032] Even with the same yarn count, weakly twisted yarns are softer and fluffier than regular twisted yarns, meaning that they appear slightly thicker.

[0033] The weakly twisted yarn contains more internal voids than the normally twisted yarn, and it is presumed that these voids induce capillary action.

[0034] The weakly twisted yarn not only has a lower twist factor than the normally twisted yarn, but may also be formed by untwisting intertwined dissolving yarns by dissolving them.

[0035] Figure 2 shows an example of weakly twisted yarn formation. The upper image shows normal twisted yarn and dissolved yarn, and the lower image shows cross-twisted yarn.

[0036] Ordinary twisted yarn is formed by twisting fibers such as cotton. Next, a soluble yarn (e.g., a water-soluble yarn) is wound around the ordinary twisted yarn in the opposite direction to the twist direction to form a cross-twisted yarn. By dissolving and removing the soluble yarn, the twist of the ordinary twisted yarn is reversed to form a weakly twisted yarn. At this time, the yarn softens and expands, forming gaps between the fibers.

[0037] For example, if the number of twists of the ordinary twisted yarn and the dissolving yarn is 15 for 100 twists, a weakly twisted yarn with an 85% twist after untwisting is formed. The untwist rate in this case is 15%. Similarly, if the ordinary twisted yarn is twisted 100 times and the dissolving yarn is twisted 50 times, a weakly twisted yarn with an 50% twist after untwisting is formed. The untwist rate in this case is 50%. The untwist rate in this case is 15-50%.

[0038] If the untwisting ratio is less than 15%, clear gaps are not formed, and the effect of the present invention cannot be obtained. If the untwisting ratio is more than 50%, the strength of the yarn becomes insufficient, making it difficult to form the product. Furthermore, the untwisting ratio of the present invention is preferably 20-40%.

[0039] Furthermore, if the number of twists of the ordinary twisted yarn is 100 and the number of twists of the dissolving yarn is 170, a weakly twisted yarn with a twist of -70% after untwisting is formed. This is treated as the same as an untwist rate of 30%.

[0040] If the number of twists of the ordinary twisted yarn is 100 and the number of twists of the dissolving yarn is 100, a non-twisted yarn with 0% twist after untwisting is formed. The twist coefficient K of the non-twisted yarn is zero.

[0041] If a non-twisted yarn or a yarn equivalent to a non-twisted yarn is used in the knitted fabric, the kickback properties of the knitted fabric will be impaired, and therefore, non-twisted yarn is not used in this application.

[0042] The cotton yarn of the present invention has an English cotton count of 60 to 100 (equivalent to a single yarn) (Feature 2). For knitted fabrics such as jersey and interlock, an English cotton count of 20 to 40 (equivalent to a single yarn) is often used.

[0043] Figure 3 is a comparative image diagram of loops in a fine count knitted fabric structure (Figure 3A) and loops in a coarse count knitted fabric structure (Figure 3B). Note that the loops in this application are part of the knitted fabric structure and are different from loops in pile woven fabrics and loops in pile knitted fabrics.

[0044] The knitted fabric of the present application is intended to be used in clothing. Therefore, light weight is also important, and the fabric mass of the knitted fabric is 150 g / m2 or less (Feature 4).

[0045] As a result, the knitting density (wale x course) is adjusted so that the mass falls within a predetermined range by shortening the loop interval in the fine count knitted fabric structure and lengthening the loop interval in the coarse count knitted fabric structure. Specifically, the knitting density is adjusted by the gauge number of the knitting machine.

[0046] The gaps formed between the loops of a fine count knitted fabric structure are narrower and more numerous than those of a coarse count knitted fabric structure, and it is presumed that these gaps induce capillary action.

[0047] Furthermore, it is presumed that fine count knitted fabrics have a denser structure and a larger number of yarns than coarse count knitted fabrics, which results in the more reliable effect of Feature 1 of the present invention.

[0048] Therefore, if the count is thicker than 60 British cotton count, the fabric will be heavy and the knitting density will be coarse, making it impossible to achieve the effects of the present invention. If the count is thicker than 100 British cotton count, the yarn strength will be insufficient, making it difficult to form into products. Furthermore, the cotton count of the present invention is preferably 70 to 90 (equivalent to single yarn). Note that a single yarn count of 60 is equivalent to a two-ply yarn count of 120, and a single yarn count of 100 is equivalent to a two-ply yarn count of 200.

[0049] Furthermore, if an extremely fine count is applied to the knitted fabric, the kickback property of the knitted fabric will be impaired, and therefore, an extremely fine count is not applied in this application.

[0050] The knitted fabric of the present application is formed from two or more layers of jersey weave (Feature 3). Plain knitting, also known as plain knitting, is the most basic weft knitting weave, and is knitted with a single row of needles, resulting in the same knitted weave in both the vertical and horizontal directions. The stitches on the front and back are different, with the front side having vertical stitches and the back side having horizontal stitches. For ease of explanation, the following examples will be described as double jersey weave. Unless otherwise specified in this application, jersey weave is, in principle, a single weave.

[0051] Figure 4 is an image diagram of the double jersey structure. A first jersey weave and a second jersey weave are layered together via a co-knitted weave. To avoid complicating the illustration, the details of the co-knitted weave are omitted. Figure 4A is a schematic perspective view, and Figure 4B is a partial plan view.

[0052] The jersey weave has a clear front and back side, but the back side of the first jersey weave may be joined to the front side of the second jersey weave, or the back side of the first jersey weave may be joined to the back side of the second jersey weave, or the front side of the first jersey weave may be joined to the front side of the second jersey weave.

[0053] It is believed that the spaces formed by laminating the first and second jersey weaves function as a kind of temporary water storage, similar to the gaps between fibers or between yarns. In particular, when the backs of the first and second jersey weaves are bonded together, the convex surfaces face each other, reducing the contact area between the two layers and increasing the number of gaps. This is preferable because it increases capillary action and water storage space.

[0054] The knitted fabric of the present application is intended for use in clothing. Therefore, lightness is also important, and the fabric mass of the knitted fabric is 150 g / m2 or less (Feature 4). If these constituent requirements and the cotton yarn count are limited, the density of the weave and the thickness of the fabric will necessarily be limited to a predetermined range.

[0055] Furthermore, the fabric mass of the knitted fabric is preferably about 80 to 130 g / m2. If it is less than 80 g / m2, the structure will be too coarse or thin, and the effect of the present invention will not be obtained.

[0056] The saturated water absorption capacity of the knitted fabric of the present application is four times or more the mass of the fabric (Feature 5). In other words, by having Features 1 to 4 of the knitted fabric of the present application, it is possible to achieve both light weight and water absorption.

[0057] Increasing the fabric mass (ignoring lightness) increases the amount of water absorbed. In this application, the saturated water absorption per fabric mass, i.e., the water absorption ratio, is used as an index because the objective is not simply to measure the amount of water absorbed, but to achieve both lightness and water absorbency.

[0058] The water absorption is the value measured by the JIS L1907 surface water absorption method. The saturated water absorption is the amount of water absorbed by the fabric when the amount of water absorbed by the fabric reaches equilibrium over time. Generally, cotton fabrics often reach saturated water absorption within 120 seconds, so in this application, measurements were taken up to 180 seconds, and the value at 180 seconds was taken as the saturated water absorption. The mass of the fabric is the mass of the sample size specified in the JIS L1907 surface water absorption method.

[0059] Example 1 Example 1 and Comparative Example 1 were compared to verify the relationship between Feature 1 (twist factor) of the present invention and the effect of the present invention.

[0060] Both Example 1 and Comparative Example 1 were made of double jersey fabric with a British cotton count of 80. The gauge was G24.

[0061] In Example 1-1, the untwist rate was 20% and the twist factor was 3.1. In Example 1-2, the untwist rate was 30% and the twist factor was 2.8. In Example 1-3, the untwist rate was 50% and the twist factor was 2.0.

[0062] In Comparative Example 1-1, the twist coefficient was 4.0 (normal twist yarn). In Comparative Example 1-2, one of the double plain weaves had a twist coefficient of 4.0 (normal twist yarn) and the other had a twist coefficient of 2.0 (weak twist yarn).

[0063] The fabric mass of the knitted fabric was 150 g / m2 or less and was adjusted to be as uniform as possible.

[0064] 5 is a graph comparing the water absorption capacities of Example 1 and Comparative Example 1. The horizontal axis represents elapsed time (S), and the vertical axis represents water absorption capacity (amount of saturated water absorption per unit mass (dimensionless)). The water absorption capacity after 180 seconds was defined as the saturated water absorption capacity.

[0065] The water absorption capacity of Example 1-1 was 5.1. The water absorption capacity of Example 1-2 was 4.2. The water absorption capacity of Example 1-3 was 4.6. All of them achieved a water absorption capacity of 4.0 or more.

[0066] The water absorption capacity of Comparative Example 1-1 was 4.4. The water absorption capacity of Comparative Example 1-2 was 5.0. All of them achieved a water absorption capacity of 4.0 or more. However, while all of Example 1's water absorption capacity exceeded 4.0 after 40 seconds, Comparative Example 1-1's water absorption capacity exceeded 4.0 after 160 seconds. Comparative Example 1-2's water absorption capacity exceeded 4.0 after 60 seconds.

[0067] Example 1 and Comparative Example 1 were compared in terms of maximum water absorption rate (ml / s) measured by the JIS L 1907 surface water absorption method.

[0068] The water absorption rate of Example 1-1 was 0.13, the water absorption rate of Example 1-2 was 0.16, and the water absorption rate of Example 1-3 was 0.07.

[0069] The water absorption rate of Comparative Example 1-1 was 0.02, and the water absorption rate of Comparative Example 1-2 was 0.03.

[0070] The knitted fabric of the present invention is intended to be used in clothing, and specifically, is intended to quickly absorb sweat from the body and remove it from inside the clothing.

[0071] Therefore, the water absorption rate is also an important index. For convenience, in this application, examples include those with a maximum water absorption rate (ml / s) of 0.05 or more as measured by the JIS L 1907 surface water absorption method, and comparative examples include those with a maximum water absorption rate of less than 0.05.

[0072] From the comparison results between Example 1 and Comparative Example 1, it is presumed that a good water absorption rate can be achieved by using an appropriate twist factor.

[0073] Furthermore, when comparing Comparative Example 1-1 and Comparative Example 1-2, it is estimated that the water absorption rate can be improved by setting an appropriate twist coefficient for one of the double plain weaves.

[0074] Example 2 Example 2 and Comparative Example 2 were compared to verify the relationship between Feature 2 (cotton yarn count) of the present invention and the effects of the present invention.

[0075] Both Example 2 and Comparative Example 2-1 were made of double plain weave with a twist factor of 2.8.

[0076] In Example 2-1, the British cotton count was 80. The gauge number was G24. In Example 2-2, the British cotton count was 100. The gauge number was G28. In Example 2-3, the cotton yarn count was 60. The gauge number was G22. Note that if a British cotton count of more than 100 is used, the yarn strength becomes insufficient and product formation becomes difficult, so this was not verified in the examples. In Comparative Example 2-1, the British cotton count was 40. The gauge number was G18.

[0077] It should be noted that Example 1-2 and Example 2-1 are substantially the same.

[0078] In Examples 2-1 to 2-3, the mass of the knitted fabric was adjusted to 150 g / m or less. However, if the gauge number was 22 or less, the knitting density became too coarse, so Example 2-3 was somewhat heavy. In addition, the mass of the fabric in Comparative Example 2-1 exceeded 150 g / m.

[0079] 6 is a graph comparing the water absorption capacities of Example 2 and Comparative Example 2. The horizontal axis represents elapsed time (S), and the vertical axis represents water absorption capacity (amount of saturated water absorption per unit mass (dimensionless)). The water absorption capacity after 180 seconds was defined as the saturated water absorption capacity.

[0080] The water absorption capacity of Example 2-1 was 4.2. The water absorption capacity of Example 2-2 was 4.9. The water absorption capacity of Example 2-3 was 4.2. All of them achieved a water absorption capacity of 4.0 or more.

[0081] The water absorption capacity of Comparative Example 2-1 was 3.2. Comparative Example 2-1 has a large unit mass and sufficient water absorption capacity, but the large unit mass results in a low water absorption capacity.

[0082] From the comparison results between Example 2 and Comparative Example 2, it is inferred that an appropriate cotton yarn count can achieve a balance between lightness and water absorbency.

[0083] In Example 2, the maximum water absorption rate (ml / s) measured by the JIS L 1907 surface water absorption method was confirmed. The water absorption rate of Example 2-1 was 0.16. The water absorption rate of Example 2-2 was 0.05. The water absorption rate of Example 2-3 was 0.06. All of them were 0.05 or more.

[0084] In order to verify the relationship between Feature 3 (double jersey) of the present invention and the effects of the present invention, Comparative Example 2-1 and Comparative Example 2-2 were compared.

[0085] In both Comparative Examples 2-1 and 2-2, cotton yarn with a twist coefficient of 2.8 and a British cotton yarn count of 40 was used.

[0086] Comparative Example 2-1 is a double jersey weave, while Comparative Example 2-2 is a single jersey weave. As a result, the fabric masses are also different.

[0087] The absorbency of Comparative Example 1-2 was 3.2. The absorption rate was 0.08. The absorbency of Comparative Example 2-2 was 2.4. The absorption rate was 0.02. It is presumed that the good absorbency and absorption rate can be achieved by the temporary water storage function formed between the double jersey lamination.

[0088] Modifications The knitted fabrics according to the above embodiment and the modifications have in common Feature 1 (twist coefficient), Feature 2 (cotton yarn count), Feature 4 (fabric mass), and Feature 5 (absorbency).

[0089] The above embodiment has a double plain stitch structure (Feature 3-1 of the present application), whereas the knitted fabric according to the modified example has an interlock structure (Feature 3-2 of the present application). Note that the interlock structure is sometimes called smooth.

[0090] Figure 7 is an image diagram of the structure of interlock knitting. In plain knitting, the stitches are different on the front and back, with the front side having vertical stitches and the back side having horizontal stitches, whereas interlock knitting is a knitting structure in which two rib knitting structures are combined so that the front and back are the same. Rib knitting is a knitting structure in which the front and back of plain knitting appear alternately, and is characterized by symmetrical unevenness on the front and back.

[0091] That is, the double plain weave has two plain weaves, whereas the interlock weave can be interpreted as 1.5 plain weaves.

[0092] As a result, it is presumed that Feature 3-2 (interlock weave) of the present invention exhibits a temporary water storage function similar to Feature 3-1 (double jersey weave) of the present invention.

[0093] Example 3 In the modified example, Example 3 was compared with Comparative Example 3 to verify the relationship between Feature 1 (twist factor) of the present invention and the effect of the present invention.

[0094] Both Example 3 and Comparative Example 3 had an interlock weave with a British cotton count of 100. The gauge was G28.

[0095] In Example 3-1, the untwist rate was 20% and the twist coefficient was 3.1. In Example 3-2, the untwist rate was 30% and the twist coefficient was 2.8. In Example 3-3, the untwist rate was 50% and the twist coefficient was 2.0. In Comparative Example 3, the twist coefficient was 4.0 (twisted yarn).

[0096] The fabric mass of the knitted fabric was 150 g / m2 or less and was adjusted to be as uniform as possible.

[0097] 8 is a graph comparing the water absorption capacities of Example 3 and Comparative Example 3. The horizontal axis represents elapsed time (S), and the vertical axis represents water absorption capacity (amount of saturated water absorption per unit mass (dimensionless)). The water absorption capacity after 180 seconds was defined as the saturated water absorption capacity.

[0098] The water absorption capacity of Example 3-1 was 4.5. The water absorption capacity of Example 3-2 was 4.6. The water absorption capacity of Example 3-3 was 4.8. All of them achieved a water absorption capacity of 4.0 or more. The water absorption capacity of Comparative Example 3 was 4.7.

[0099] There was no significant difference in the water absorption capacity between Example 3 and Comparative Example 3. However, in Example 3, the water absorption capacity exceeded 4.0 after 20 to 25 seconds, whereas in Comparative Example 3, the water absorption capacity exceeded 4.0 after 70 seconds.

[0100] Example 3 and Comparative Example 3 were compared in terms of maximum water absorption rate (ml / s) measured by the JIS L 1907 surface water absorption method.

[0101] The water absorption rate of Example 3-1 was 0.19. The water absorption rate of Example 3-2 was 0.09. The water absorption rate of Example 3-3 was 0.11. The water absorption rate of Comparative Example 3 was 0.04. That is, Example 3 had a water absorption rate of 0.05 or more, and Comparative Example 3 had a water absorption rate of less than 0.05.

[0102] From the comparison results between Example 3 and Comparative Example 3, it is presumed that a good water absorption rate can be achieved by using an appropriate twist factor.

[0103] - Reference Example - The reference example is a product sold by a major clothing manufacturer. It boasts excellent water absorption and quick-drying properties, and is said to quickly absorb sweat from the body and remove it from inside the clothing. We investigated as many specifications as possible from the product.

[0104] Reference Example 1 is a single-ply jersey fabric made from cotton yarn and polyester yarn. The fabric mass is 182 g / m2. Note that this knitted fabric has a cotton blend rate of about 70%, and is not considered a cotton knitted fabric in this application. Reference Example 2 is a single-ply jersey fabric made from polyester yarn and polyurethane yarn. The fabric mass is 103 g / m2.

[0105] Fig. 9 is a graph showing the water absorption capacity of the reference example. The horizontal axis represents the elapsed time (S), and the vertical axis represents the water absorption capacity (amount of saturated water absorption per unit mass (dimensionless)). The water absorption capacity after 180 seconds was defined as the saturated water absorption capacity.

[0106] The water absorption capacity of Reference Example 1 was 2.0. The water absorption capacity of Reference Example 2 was 2.6. Both were less than 4.0.

[0107] The water absorption rate of Reference Example 1 was 0.10, and the water absorption rate of Reference Example 2 was 0.09.

[0108] When Examples 1 to 3 of the present invention are compared with the Reference Example, the water absorption rates are similar, but there is a significant difference in the water absorption capacity.

[0109] In other words, both the product of the present application and the reference product have similar functions of quickly absorbing sweat from the body and removing it from inside the clothing, but it is presumed that as the amount of sweat increases, this function decreases in the reference product, whereas the product of the present application maintains this function even when the amount of sweat is large.

[0110] The superiority of cotton yarn as a material can be inferred. Also, in the reference examples where chemical fibers are the main component, the idea of ​​weakly twisted yarn is unlikely to arise.

[0111] ~Interior clothing environment~ The knitted fabric of this application is intended to be used in clothing. It is intended to quickly absorb sweat from the body and remove it from inside the clothing. The wearer will not feel sticky or stuffy due to sweat, and will be able to maintain a refreshing feeling.

[0112] The changes in the environment inside the garments were compared for the garments knitted in Example 1 (double jersey) of the present application (specifically, Example 1-2), Example 3 (interlock) of the present application (specifically, Example 3-2), Comparative Example 2 (cotton twisted yarn jersey) (specifically, Comparative Example 2-2), and Reference Example (commercially available product) (specifically, Reference Example 2).

[0113] The clothing environment measurement system can reproduce the environment inside clothing (temperature and humidity) by controlling the water vapor inside the housing.

[0114] After restoring normal conditions for 15 minutes, 100 ml / m 2 A sweating state was reproduced by supplying water vapor at 1 / h, and the sweating state was continued for 45 minutes.

[0115] 10 and 11 are graphs showing changes in humidity and temperature during the clothing environment test.

[0116] Under normal conditions, Example 1, Example 3, Comparative Example 2, and Reference Example all have a stable humidity of about 50%, and a stable temperature of 28.0 to 28.5 degrees.

[0117] In the sweating state, the humidity monotonically increases in Example 1, Example 3, Comparative Example 2, and Reference Example. Looking at the details, the humidity equilibrates at around 75% in Example 1 and around 80% in Example 3, whereas the humidity continues to increase monotonically in both Comparative Example 2 and Reference Example even as it approaches 90%.

[0118] This suggests that Examples 1 and 3 of the present invention have the function of absorbing moisture and expelling it to the outside of the garment, whereas Comparative Example 2 and Reference Example have an insufficient function.

[0119] As humidity increases, the temperature also increases in Example 1, Example 3, Comparative Example 2, and Reference Example. Looking at the details, the temperature increase is small in Example 1 and Example 3, and the temperature begins to decrease relatively quickly and returns to a normal state. In other words, the environment inside the garment is stable. In contrast, the temperature increase is large in Comparative Example 2 and Reference Example, and the temperature decrease begins slowly and returns to a normal state slowly.

[0120] The results of the in-garment environment test suggest that Examples 1 and 3 of the present invention can suppress stickiness and stuffiness caused by sweat and maintain a refreshing wearing comfort. In contrast, Comparative Example 2 and the Reference Example suggest that this function is insufficient.

[0121] Other specifications were also compared between Example 1, Example 3, Comparative Example 2, and Reference Example. Example 1 and Example 3 were superior to Comparative Example 2 and Reference Example in terms of lightness (fabric weight), breathability, and heat retention.

[0122] Furthermore, due to differences in the basic configuration, Example 1 (fabric thickness 10.0 mm) and Example 3 (fabric thickness 8.2 mm) of the present application were thicker than Comparative Example 2 (fabric thickness 7.4 mm) and Reference Example (fabric thickness 5.8 mm). The knitted fabric of the present application preferably has a thickness of 7.5 mm or more.

[0123] Summary The knitted fabric of the present invention is lightweight, breathable, and has excellent heat retention properties, making it suitable for use as clothing material.

[0124] The knitted fabric of the present invention has an excellent water absorption capacity. In other words, it has excellent water absorption capacity while maintaining light weight. Furthermore, it has an excellent water absorption rate.

[0125] As a result, the garment of the present invention can quickly absorb sweat from the body and remove it from within the garment, allowing the wearer to maintain a refreshing feeling without feeling sticky or stuffy due to sweat.

Claims

1. A knitted fabric made of cotton yarn, wherein the twist coefficient of the cotton yarn is 2.0 or more and 3.4 or less, the cotton yarn has an English cotton count of 60 to 100 (equivalent to single yarn), the knitted fabric is formed from two or more layers of jersey weave, the fabric mass is 150 g / m2 or less, and the saturated water absorption is four or more times the fabric mass.

2. The knitted fabric according to claim 1, characterized in that the cotton yarn is formed by untwisting a twisted dissolving yarn by dissolving it.

3. The knitted fabric according to claim 1, characterized in that the untwisting rate of the dissolving yarn is 15-50%.

4. The knitted fabric according to claim 1, wherein the two or more layers of plain stitch include a first plain stitch and a second plain stitch, and the back side of the first plain stitch and the back side of the second plain stitch are bonded together.

5. A method for producing a knitted fabric according to claim 1, characterized in that a cotton yarn having a twist coefficient of more than 3.4 is twisted with a dissolving yarn to form a twisted yarn, two or more layers of plain weave are formed using the twisted yarn, the dissolving yarn is dissolved, and the cotton yarn is untwisted.

6. A knitted fabric made of cotton yarn, wherein the twist coefficient of the cotton yarn is 2.0 or more and 3.4 or less, the cotton yarn has an English cotton count of 60 to 100 (equivalent to a single yarn), the knitted fabric is formed from one or more layers of an interlock structure, the fabric weight is 150 g / m2 or less, and the saturated water absorption is four times or more the fabric weight.

7. A garment formed from the knitted fabric according to claim 1 or 6.

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