Cupra brushed knitted fabric and clothing containing the same

The cupro-raised knitted fabric addresses the limitations of existing loop fabrics by integrating a loop-free surface and looped structure with cupro fibers, achieving superior moisture absorption, heat retention, and strength for comfortable clothing.

JP3249491UActive Publication Date: 2024-12-13EMI JAPAN CO LTD
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Patent Information

Application Number
JP2024003457U
Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
Priority Date
2024-09-04
Filing Date
2024-10-18
Publication Date
2024-12-13
Estimated Expiration
2034-10-18

AI Technical Summary

Technical Problem

Existing loop fabrics lack a combination of excellent moisture absorption, heat generation, and high strength properties, making it difficult to meet consumer needs.

Method used

A cupro-raised knitted fabric with a surface layer without loops and a loop layer containing cupro fibers, featuring a raised structure on the loop layer, which includes cupro fibers or blends, providing high bursting strength, moisture absorption, and heat retention.

Benefits of technology

The fabric achieves excellent moisture absorption, heat generation, and heat retention with high bursting strength, suitable for underwear and thermal clothing, enhancing comfort and flexibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a cupra raised knitted fabric having excellent moisture absorption and heat generation properties, good heat retention, high burst strength, and excellent moisture absorption and release properties. [Solution] The front of the cupra brushed knit fabric is a surface layer 1 that does not have loops, and the back is a loop layer 2. The loop layer 2 has a brushed structure 3 on the side away from the surface layer 1. At least one of the surface layer 1 and the loop layer 2 contains cupra fiber. By specifying the knit structure and the type of yarn used, the fabric has features such as low cost, high burst strength, excellent moisture absorption and heat generation properties, good heat retention, softness and comfort, and good moisture absorption and release properties. For this reason, it is particularly suitable for manufacturing underwear and thermal clothing.
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Description

[Technical field]

[0001] The present invention relates to a cupro brushed knitted fabric in the field of textile technology and to a garment comprising the same. [Background technology]

[0002] As a type of knitted fabric, loop fabric is known (Patent Document 1). Loop fabric is a knitted fabric covered with loops on one or both sides. Loop knitted fabric has characteristics such as softness to the touch, thickness, good water absorbency, and heat retention. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2004-529275 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the loop fabrics in the prior art have a problem in that they have only one of the above functions, and are unable to combine excellent moisture absorption and heat generation properties, excellent heat retention properties, and high strength, making it difficult to meet the needs of consumers.

[0005] To address the above problems, there is an urgent need to develop knitted fabrics that have excellent moisture absorption and heat generation properties, good heat retention, high burst strength, and excellent moisture absorption and release properties. [Means for solving the problem]

[0006] In view of the deficiencies of the prior art, the object of the present invention is to provide a cupra brushed knitted fabric and a garment including the same that can exhibit the above-mentioned properties.

[0007] To achieve the above objectives, the present invention adopts the following technical solutions:

[0008] That is, in a first aspect, the present invention provides a cupra brushed knitted fabric, the front of which is a surface layer having no loops, and the back of which is a loop layer. The loop layer has a brushed structure on the side away from the surface layer. At least one of the surface layer and the loop layer contains cupra fibers.

[0009] The cross section of the cupra fiber is circular, and according to the first embodiment of the cupra brushed knitted fabric, there is little difference between the surface layer and the loop layer, the fiber can withstand strong stretching, and the produced single yarn is relatively thin, so the fabric feels soft to the touch, has a soft luster, and feels like silk. Therefore, the cupra brushed knitted fabric of the first embodiment, which includes cupra fiber, cupra blended yarn, or cupra single yarn (details of which will be described later), is comparable to silk fabric in terms of feel and drape, and has the advantages of a soft luster, good moisture absorption, and excellent breathability.

[0010] The cupra brushed knit fabric of the first embodiment is characterized by its low cost, high burst strength, excellent moisture absorption and heat generation properties, good heat retention, and softness and comfort, due to the specific fabric structure and type of yarn used. For this reason, the cupra brushed knit fabric of the first embodiment is particularly suitable for the manufacture of clothing such as underwear and thermal clothing.

[0011] In a second aspect, the present invention provides a garment comprising the cupro brushed knit fabric of the first aspect. Effect of the Invention

[0012] The cupra brushed knit fabric of the present invention has a double-sided structure, with the front being a surface layer without loops and the back being a loop layer with a loop structure. The loop layer has a brushed structure on the side away from the surface layer. At least one of the surface layer and the loop layer contains cupra fiber. Therefore, the cupra brushed knit fabric of the present invention has excellent moisture absorption and heat generation properties and high burst strength. In addition, clothing including the cupra brushed knit fabric can be arranged such that the loop layer with the brushed structure is close to the skin side of the wearer of the clothing, thereby further improving the heat retention, comfort, and flexibility of the cupra brushed knit fabric in the clothing. Therefore, the clothing is particularly suitable as underwear or thermal clothing. [Brief description of the drawings]

[0013] [Figure 1] 1 is a schematic diagram showing the cross-sectional structure of a cupra brushed knit fabric of the present invention. [Diagram 2] FIG. 2 is a diagram showing the triangular array circulation structure of the cupra brushed knit fabric of Example 1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] As described above, as shown in Fig. 1, the front side of the cupra brushed knit fabric of the present invention is a surface layer 1 that does not have loops, and the back side is a loop layer 2. The loop layer 2 has a brushed structure 3 on the side away from the surface layer 1. At least one of the surface layer 1 and the loop layer 2 contains cupra fibers.

[0015] Here, an embodiment "containing cupra fiber" includes a single yarn composed only of cupra fiber. Alternatively, an embodiment includes a blended yarn in which cupra fiber is blended with other fibers. In this specification, a yarn composed only of cupra fiber and not blended with other fibers is referred to as a "single cupra yarn." Also, a blended yarn in which cupra fiber is blended with other fibers is referred to as a "cupra blended yarn."

[0016] In the present invention, the manufacturing method of the cupra brushed knitted fabric is not specified and is optional. For example, it can be knitted using existing knitting technology. In detail, a fabric having a surface layer and a loop layer is first knitted using a knitting machine. At least one of the surface layer and the loop layer contains cupra fiber. Then, one side of the loop layer is brushed using a brushing machine to form a fluffy structure. As a result, a cupra brushed knitted fabric can be obtained.

[0017] Preferably, the surface layer is knitted from cupra blended yarn or cupra single yarn and polyurethane yarn, and the loop layer is knitted from cupra blended yarn or cupra single yarn.

[0018] Alternatively, preferably, the surface layer is knitted from a cupra blended yarn or a cupra single yarn and a polyurethane yarn, and the loop layer is knitted from a blended yarn not containing cupra.

[0019] Alternatively, preferably, the surface layer is knitted from a blended yarn not containing cupra and a polyurethane yarn, and the loop layer is knitted from a cupra blended yarn or a cupra pure yarn.

[0020] Preferably, the cupra blended yarn is at least one of polyester / cupra blended yarn, rayon / cupra blended yarn, polyester / rayon / cupra blended yarn, polyester / cotton / cupra blended yarn, polyester / lyocell / cupra blended yarn, polyacrylonitrile / cupra blended yarn, polyacrylonitrile / rayon / cupra blended yarn, nylon / cupra blended yarn, and nylon / rayon / cupra blended yarn. The cupra blended yarn can also be composed of other blended yarns containing cupra.

[0021] Preferably, the blended yarn not containing cupra is at least one of polyester / rayon blended yarn, polyester / cotton blended yarn, polyester / rayon / cotton blended yarn, polyester / lyocell blended yarn, polyacrylonitrile / rayon blended yarn, nylon / rayon blended yarn, polyacrylonitrile / rayon / cotton blended yarn, polyester / lyocell / cotton blended yarn, polyacrylonitrile / lyocell / cotton blended yarn, and nylon / rayon / cotton blended yarn. The blended yarn not containing cupra can also be composed of other blended yarns not containing cupra.

[0022] Cupra fiber, when made into the above-mentioned cupra single yarn form, can obtain the advantages of high strength such as high resistance to bursting and abrasion, excellent moisture absorption and release properties, and good color development. Also, when made into the form of cupra blended yarn, although the moisture absorption and release properties are inferior to those of the single material, it can obtain the advantage of reduced production costs.

[0023] The outer layer contains polyurethane yarn, which makes it stretchable and fits the body well, improving heat retention. In addition, the garment stretches easily, making it easy to put on and take off.

[0024] Preferably, the yarn count of the cupra blended yarn, the cupra single yarn, and the blended yarn not containing cupra is 30 to 70S, for example, 30S, 35S, 40S, 45S, 50S, 55S, 60S, 65S, 70S, etc.

[0025] Preferably, the thickness of the polyurethane thread is 10 to 30D. Examples include 10D, 12D, 14D, 16D, 18D, 20D, 22D, 24D, 26D, 28D, and 30D.

[0026] Preferably, the yarn length of the cupra blended yarn, the cupra single yarn, and the blended yarn not containing cupra in the surface layer is 22 to 32 cm / 100 needles. For example, 22 cm / 100 needles, 24 cm / 100 needles, 26 cm / 100 needles, 28 cm / 100 needles, 30 cm / 100 needles, 32 cm / 100 needles, etc. The blended yarn here includes both the cupra blended yarn and the blended yarn not containing cupra.

[0027] Preferably, the yarn length of the cupra blended yarn, the cupra single yarn, and the blended yarn not containing cupra in the loop layer is 8 to 20 cm / 100 needles. For example, 8 cm / 100 needles, 11 cm / 100 needles, 12 cm / 100 needles, 13 cm / 100 needles, 14 cm / 100 needles, 15 cm / 100 needles, 17 cm / 100 needles, 19 cm / 100 needles, 20 cm / 100 needles, etc. The blended yarn here also includes both the cupra blended yarn and the blended yarn not containing cupra.

[0028] The polyurethane yarn preferably has a yarn length of 6 to 15 cm / 100 stitches, for example, 6 cm / 100 stitches, 7 cm / 100 stitches, 8 cm / 100 stitches, 9 cm / 100 stitches, 10 cm / 100 stitches, 11 cm / 100 stitches, 12 cm / 100 stitches, 13 cm / 100 stitches, 14 cm / 100 stitches, 15 cm / 100 stitches, etc.

[0029] Preferably, the ratio of the number of yarns other than polyurethane yarns, which are cupra blended yarns, cupra single yarns, and blended yarns not containing cupra, to the number of polyurethane yarns in the surface layer is (number of yarns other than polyurethane yarns):(number of polyurethane yarns)=(1 to 10):1. Examples include 1:1, 2:1, 3:1, 4:1, 5:1, 6:1, 7:1, 8:1, 9:1, and 10:1.

[0030] As described above, the cupra brushed knitted fabric of the present invention has a brushed structure 3 on the side of the loop layer 2 away from the surface layer 1. The brushed structure 3 may have any shape as long as it can exhibit the required heat retention and other properties required for the cupra brushed knitted fabric of the present invention. In other words, to that extent, the thickness, length, and density of the brushed structure may be set as desired.

[0031] Preferably, the gram weight of the cupra brushed knitted fabric is 120 to 230 g / m 2 For example, 120 g / m 2 , 130g / m 2 , 140g / m 2 , 150g / m 2 , 160g / m 2 , 170g / m 2 , 180g / m 2 , 190g / m 2 , 200g / m 2 , 210g / m 2 , 220g / m 2 , 230g / m 2 Some examples include:

[0032] The clothing of the present invention includes the above-mentioned cupra brushed knit fabric.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] That is, the cupra brushed knit fabric of the present invention has a front surface layer without loops, a back surface layer with loops, the side of the loop layer away from the front surface layer has a brushed structure, and at least one of the front surface layer and the loop layer contains cupra fibers. By specifying the knit structure and the type of yarn used, the cupra brushed knit fabric of the present invention has the following features: low cost, high burst strength, excellent moisture absorption and heat generation properties, good heat retention, softness and comfort, good moisture absorption and release effect, etc. Therefore, the cupra brushed knit fabric of the present invention is particularly suitable for manufacturing clothing such as underwear and thermal clothing. EXAMPLES

[0035] The present invention will be further described below with reference to specific examples, which are intended to illustrate, but not to limit, the present invention.

[0036] The embodiments are illustrated in the drawings, and the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and are used to explain the present invention, but do not limit the present invention.

[0037] In the description of the embodiments, directions or positional relationships indicated as up, down, front, rear, left, right, etc. are based on directions or positional relationships shown in the drawings, and are intended to facilitate and simplify the description of the present invention. Therefore, they do not indicate or imply that devices or elements must be constructed in a specific direction or operated in a specific direction, and should not be understood as limiting the present invention.

[0038] The yarns in the specific examples below are existing yarns that can be purchased on the market.

[0039] Example 1 The knitted fabric is a cupra brushed fabric. The gram weight of the knitted fabric is 190 g / m 2 The cross-sectional structure is generally as shown in Figure 1. That is, the knitted fabric has a front and a back surface, the front surface being a surface layer 1 having no loops, and the back surface being a loop layer 2. The knitted fabric has a raised structure 3 on the side of the loop layer 2 away from the surface layer 1.

[0040] The surface layer 1, which does not have loops, is knitted with 50S polyester / rayon blended yarn and 20D polyurethane yarn in a ratio of 1:1. The loop layer 2 is knitted with 50S polyester / rayon / cupra blended yarn.

[0041] The cupra brushed knitted fabric of this Example 1 is knitted in a triangular array circulation structure as shown in FIG.

[0042] Here, the 1-way, 3-way and 5-way are made of 50S polyester / rayon blended yarn and 20D polyurethane yarn. The 1-way, 3-way and 5-way are knitted in a looping, looping, looping pattern. The yarn length of the 50S polyester / rayon blended yarn is 27.5cm / 100 needles, and the yarn length of the 20D polyurethane yarn is 10cm / 100 needles.

[0043] 2-way, 4-way and 6-way are polyester / rayon / cupra blended yarns. 2-way is circulated with tuck stitch and miss stitch, 4-way is circulated with miss stitch, tuck stitch and miss stitch, and 6-way is circulated with miss stitch, miss stitch and tuck stitch. The yarn length of 50S polyester / rayon / cupra blended yarn is 12.5cm / 100 stitches.

[0044] Example 2 The cupra brushed knit fabric of this Example 2 differs from Example 1 in the following respects: the surface layer without loops is knitted with 50S polyester / rayon / cupra blended yarn and 20D polyurethane yarn in a yarn ratio of 1:1, and the loop layer is knitted with 50S polyester / rayon blended yarn.

[0045] The other structures, parameters, and yarn specifications are the same as in Example 1.

[0046] Example 3 The cupra brushed knit fabric of this Example 3 differs from Example 1 in the following respects: the surface layer without loops is knitted with 50S polyester / rayon / cupra blended yarn and 20D polyurethane yarn in a ratio of 1:1. The loop layer is knitted with 50S polyester / rayon / cupra blended yarn.

[0047] The other structures, parameters, and yarn specifications are the same as in Example 1.

[0048] Example 4 The difference between the cupra brushed knit fabric of this Example 4 and Example 1 is that the loop layer is knitted with 50S polyester / cupra blended yarn. The other structures, parameters, and yarn specifications are the same as those of Example 1.

[0049] Example 5 The difference between the cupra brushed knit fabric of this Example 5 and Example 1 is that the loop layer is knitted with 50S rayon / cupra blended yarn. The other structures, parameters, and yarn specifications are the same as those of Example 1.

[0050] Example 6 The difference between the cupra brushed knit fabric of this Example 6 and Example 1 is that the loop layer is knitted with 50S cupra single yarn. The other structures, parameters, and yarn specifications are the same as those of Example 1.

[0051] Comparative Example 1 The cupra knit fabric of this Comparative Example 1 is different from Example 1 in that the napped structure is not provided on the side of the loop layer away from the surface layer. The other structures, parameters, and yarn specifications are the same as those of Example 1.

[0052] Comparative Example 2 The difference between the brushed knit fabric of Comparative Example 2 and Example 1 is that the loop layer is knitted with 50S polyester / rayon blended yarn. As a result, the brushed knit fabric of Comparative Example 2 does not contain cupra fiber. The other structures, parameters, and yarn specifications are the same as those of Example 1.

[0053] [Performance test] Tests for determining various performances for Examples 1 to 6 and Comparative Examples 1 and 2 were carried out as follows.

[0054] (1) Moisture absorption and heat generation: The maximum moisture absorption and heat generation temperature of the fabric was measured according to JIS L1952-1 "Moisture absorption and heat generation test method Part 1: Maximum moisture absorption and heat generation temperature test method."

[0055] (2) Thermal insulation: The thermal insulation rate of the fabric was measured according to ASTM D1518-85 "Testing method for thermal conductivity of textile materials."

[0056] (3) Burst strength: The burst strength of the fabric was measured according to JIS L1096 "Testing method for woven and knitted fabrics - Burst strength", Method A.

[0057] (4) Moisture release: The drying speed of the fabric was measured according to GB / T21655.1-2023 "Evaluation of moisture absorption and quick-drying properties of textiles Part 1: Single-item combination test method."

[0058] The test results are shown in Table 1.

[0059] [Table 1]

[0060] As can be seen from Table 1, the cupra raised knitted fabrics of Examples 1 to 6 had the features of high burst strength, excellent moisture absorption and heat generation properties, good heat retention, and fast moisture absorption and release speed.

[0061] On the other hand, the cupra knitted fabric of Comparative Example 1 had a low heat retention rate and poor heat retention performance because it did not have a brushed structure. The knitted fabric of Comparative Example 2 did not contain cupra fibers, so it was poor in all of the moisture absorption and heat generation properties, heat retention properties, and moisture absorption and release speed.

[0062] The above embodiment has been used to describe the cupra brushed knitted fabric and clothing of the present invention. However, the present invention is not limited to the above specific embodiment. That is, it does not mean that the present invention must be implemented depending on the above embodiment. Those skilled in the art should understand that any improvement of the present invention, equivalent replacement of the raw materials selected in the present invention, addition of auxiliary components, selection of specific methods, etc. are within the scope of disclosure of this specification and the scope of protection of the present invention. [Explanation of symbols]

[0063] 1 Surface layer 2 Loop Layer 3 Fuzzing structure

Claims

1. A cupra brushed knitted fabric, The front side of the cupra brushed knitted fabric is a surface layer having no loops, and the back side is a loop layer, The loop layer has a raised structure on a side away from the surface layer, A cupra brushed knit fabric, characterized in that at least one of the surface layer and the loop layer contains cupra fibers.

2. The surface layer is knitted with a cupra blended yarn obtained by blending cupra fiber with other fibers, or a cupra single yarn which is composed only of cupra fiber and is not blended with other fibers, and a polyurethane yarn, and the loop layer is knitted with the cupra blended yarn or the cupra single yarn, or The surface layer is knitted with the cupra blended yarn or cupra single yarn and polyurethane yarn, and the loop layer is knitted with a blended yarn that does not contain cupra, or The cupra brushed knit fabric according to claim 1, characterized in that the surface layer is knitted from a blended yarn not containing cupra and a polyurethane yarn, and the loop layer is knitted from the cupra blended yarn or a single cupra yarn.

3. The cupra brushed knit fabric according to claim 2, characterized in that the cupra blended yarn is at least one of polyester / cupra blended yarn, rayon / cupra blended yarn, polyester / rayon / cupra blended yarn, polyester / cotton / cupra blended yarn, polyester / lyocell / cupra blended yarn, polyacrylonitrile / cupra blended yarn, polyacrylonitrile / rayon / cupra blended yarn, nylon / cupra blended yarn, and nylon / rayon / cupra blended yarn.

4. The cupra brushed knit fabric according to claim 2, characterized in that the blended yarn not containing cupra is at least one of polyester / rayon blended yarn, polyester / cotton blended yarn, polyester / rayon / cotton blended yarn, polyester / lyocell blended yarn, polyacrylonitrile / rayon blended yarn, nylon / rayon blended yarn, polyacrylonitrile / rayon / cotton blended yarn, polyester / lyocell / cotton blended yarn, polyacrylonitrile / lyocell / cotton blended yarn, and nylon / rayon / cotton blended yarn.

5. A cupra brushed knitted fabric according to any one of claims 2 to 4, characterized in that the yarn counts of the cupra blended yarn, the cupra single yarn, and the blended yarn not containing cupra are all 30 to 70S.

6. The cupra brushed knitted fabric according to any one of claims 2 to 4, characterized in that the polyurethane yarn has a thickness of 10 to 30D.

7. A cupra brushed knitted fabric according to any one of claims 2 to 4, characterized in that the yarn lengths of the cupra blended yarn, cupra single yarn, and blended yarn not containing cupra in the surface layer are all 22 to 32 cm / 100 needles.

8. A cupra brushed knitted fabric according to any one of claims 2 to 4, characterized in that the yarn lengths of the cupra blended yarn, the cupra single yarn, and the blended yarn not containing cupra in the loop layer are all 8 to 20 cm / 100 needles.

9. The cupra brushed knitted fabric according to any one of claims 2 to 4, characterized in that the polyurethane yarn has a yarn length of 6 to 15 cm / 100 needles.

10. The cupra brushed knit fabric according to claim 2, characterized in that the ratio of the number of yarns other than polyurethane yarn, which is a blended yarn of cupra, a single cupra yarn, and a blended yarn not containing cupra, to the number of polyurethane yarns in the surface layer is (number of yarns other than polyurethane yarn):(number of polyurethane yarns) = (1 to 10):

1.

11. Gram weight: 120-230g / m 2 The cupra brushed knitted fabric according to claim 1,

12. A garment comprising the cupra brushed knit fabric according to any one of claims 1 to 4, 10 and 11.

Citation Information

Patent Citations

  • Loop pile fabric and its manufacturing method

    JP2004529275A