Zhenbiandi

Abstract

To provide a warp-knitted fabric that selectively exposes sinker loops of multiple types of yarn with different properties such as color, luster, and elasticity on the surface of the knitted fabric, thereby clearly expressing multi-color patterns. [Solution] A warp-knitted fabric comprising a front structure knitted with front yarn 1 and a back structure knitted with back yarn 2 having different properties from front yarn 1, wherein the front yarn 1 alternately repeats knitted sections and insertion sections in each course, and swings alternately left and right in the knitted sections every two courses, the back yarn 2 alternately repeats insertion sections and knitted sections in each course, and swings alternately left and right in the knitted sections every two courses, and the insertion sections of the back yarn 2 are formed in the courses of the knitted sections of the front yarn 1, and the insertion sections of the back yarn 2 are displaced by a jacquard reed so that the sinker loops of the back yarn 2 are exposed on the surface of the knitted fabric in the region where the back yarn 2 is knitted without intersecting with the front yarn 1.

Description

[TECHNICAL FIELD]

[0001] The present invention relates to a warp knitted fabric, and more specifically to a jacquard warp knitted fabric in which a plurality of types of yarns with different properties are selectively exposed on the surface of the knitted fabric. [BACKGROUND ART]

[0002] As is well known, warp knitted fabrics with patterns are used in foundations such as shorts, girdles, bras and other women's underwear, as well as clothing such as sportswear, uniforms, and outerwear. A warp knitted fabric having such a pattern is knitted by a warp knitting machine equipped with a jacquard reed, and an arbitrary pattern is formed in an arbitrary region of the knitted fabric by a basic structure knitted by jacquard control of the jacquard reed and its modified structure.

[0003] To date, it has been proposed that multicolor patterns are expressed on warp knitted fabrics by using multiple types of yarns of different colors and materials as the yarns constituting the pattern of the warp knitted fabric, changing the swing width of the sinker loop of each yarn by the jacquard reed, and appropriately combining openwork structure (chain stitch structure), thin structure (denbigh stitch structure) and thick structure (cord stitch structure) formed by each yarn (see Patent Document 1 below).

[0004] However, in the warp knitted fabric having a multicolor pattern described in Patent Document 1, the pattern-forming yarn Y2 of the rear split jacquard reed is knitted into a thick structure at the portion of the openwork structure knitted by the pattern-forming yarn Y1 of the front split jacquard reed of the warp knitting machine, so that the color of the rear pattern-forming yarn Y2 is made prominent on the surface of the knitted fabric through the holes of the openwork structure of the front pattern-forming yarn Y1 to express the multicolor pattern. Therefore, there is naturally a limit to obtaining multicolor patterns with clear contrast and vivid color. [PRIOR ART DOCUMENTS] [PATENT DOCUMENTS]

[0005] [Patent Document 1] Japanese Patent No. 3608042 [SUMMARY OF THE INVENTION] [Problems that the invention aims to solve]

[0006] This invention was made in view of the above-mentioned drawbacks of conventional warp-knitted fabrics with multi-color patterns, and aims to provide a warp-knitted fabric that can express a multi-color pattern with clear contrast and vivid hues by selectively exposing sinker loops of multiple types of yarn with at least one different property such as color, luster, elasticity, moisture absorption, and weather resistance on the surface of the knitted fabric. [Means for solving the problem]

[0007] The present invention relates to a warp-knitted fabric comprising a front structure knitted with front yarns guided by a front reed, and a back structure knitted with back yarns guided by a jacquard reed behind the front reed and having different properties from the front yarns, The aforementioned front structure is formed by the front yarn alternating between a knitted section and an insertion section in each course, and swinging alternately left and right in the knitted section every two courses. The back structure is formed by the back yarn alternating between an insertion portion and a knitted portion in each course, and swinging alternately left and right in the knitted portion every two courses, with the insertion portion of the back yarn being formed in the course where the knitted portion of the front yarn is formed. The insertion portion of the back yarn is displaced by the jacquard control of the jacquard reed, and the sinker loop of the back yarn is exposed on the surface of the knitted fabric in the region where the back yarn is knitted without intersecting the front yarn.

[0008] Furthermore, the present invention is characterized in that the back yarn has a different color from the front yarn.

[0009] Furthermore, the present invention is characterized in that the back yarn has a different luster than the front yarn.

[0010] Furthermore, the present invention is characterized in that elastic yarn or highly shrinkable yarn, which has been guided by another reed, is inserted or knitted into the fabric. [Effects of the Invention]

[0011] In the warp-knitted fabric according to the present invention, in areas where the back yarn of the back structure is knitted using a jacquard reed without intersecting with the front yarn of the front structure, the relative positions of the sinker loops of the front yarn and the sinker loops of the back yarn can be reversed after knitting, allowing the sinker loops of the back yarn to be exposed on the surface of the knitted fabric. Therefore, when yarns of different colors are used as the front yarn and the back yarn, a multi-color pattern with significantly clearer and more vivid colors can be expressed on the surface of the knitted fabric compared to conventional products. [Brief explanation of the drawing]

[0012] [Figure 1] This is a plan view showing the pattern on the surface of a warp-knitted fabric according to an embodiment of the present invention. [Figure 2] This is a knitting structure diagram of the front yarn and back yarn of the warp-knitted fabric according to the same embodiment. [Figure 3] This diagram shows the first and second modified structures, which are variations of the basic back structure of the warp-knitted fabric in the same embodiment. [Figure 4] This is a knitting structure diagram of the first region, which is formed by combining the front structure and the first change structure of the back structure of the warp-knitted fabric of the same embodiment. [Figure 5] This is a knitting structure diagram of a second region formed by combining the front structure and the second change structure of the back structure of the warp-knitted fabric of the same embodiment. [Figure 6] This figure shows the changes in the second region of the warp-knitted fabric after knitting in the same embodiment. [Figure 7] This is a diagram of the knitting structure of each yarn in the warp-knitted fabric according to an embodiment of the present invention. [Figure 8] This is a diagram of the knitting structure of each yarn in a warp-knitted fabric according to another embodiment of the present invention. [Figure 9] This is a diagram of the knitting structure of each yarn in a warp-knitted fabric according to yet another embodiment of the present invention. [Modes for carrying out the invention]

[0013] As shown in Fig. 1, the warp knitted fabric 10 of the present embodiment is knitted with two types of yarns of different colors, and a multicolored camouflage pattern is expressed on the surface of the knitted fabric by a first region X mainly exhibiting the color of one yarn, a second region Y mainly exhibiting the color of the other yarn, and a third region Z exhibiting an intermediate color between these two types of yarns.

[0014] As shown in Fig. 2, the warp knitted fabric 10 of the present embodiment is knitted by combining a front structure F knitted with front yarns 1 guided by a front reed on the front side of a warp knitting machine, and a back structure B knitted with back yarns 2 guided by a jacquard reed on the rear side of the front reed. The front yarns 1 and the back yarns 2 have different colors from each other.

[0015] The front structure F is knitted such that the front yarn 1 alternately repeats stitch portions and insertion portions every course, and is alternately shifted left and right at stitch portions every two courses. Specifically, the front structure F of the present embodiment has a repeating unit of 4 courses in total of 22 / 10 / 11 / 23 / / , and is knitted by the front yarn 1 fully threaded through the front reed.

[0016] The back structure B is knitted such that the back yarn 2 alternately repeats insertion portions and stitch portions every course, and is alternately shifted left and right at stitch portions every two courses. The insertion portions of the back yarn 2 are formed on the courses where the stitch portions of the front yarn 1 are formed (the second course C2, the fourth course C4), and the stitch portions of the back yarn 2 are formed on the courses where the insertion portions of the front yarn 1 are formed (the first course C1, the third course C3). That is, the insertion portions and stitch portions of the back yarn 2 of the back structure B are shifted by one course relative to the insertion portions and stitch portions of the front yarn 1 of the front structure F. Specifically, the back structure B of the present embodiment has a repeating unit of 4 courses in total of 12 / 00 / 10 / 11 / / , and is knitted by the back yarn 2 fully threaded through the jacquard reed on the rear side of the front reed.

[0017] The back yarn 2 of this back structure B is appropriately displaced by one needle to the left in desired wales and desired even courses under jacquard control of a jacquard reed, whereby the basic structure b of the back structure B shown in Fig. 2 changes into a first changed structure b1 and a second changed structure b2 shown in Fig. 3.

[0018] Specifically, as shown in Fig. 3, in the second course C2 of the basic structure b, by displacing the insertion portion of the back yarn 2 by one needle to the left (see the white arrow in Fig. 3), the first changed structure b1 having a repeating unit of 4 courses in total of 12 / 11 / 10 / 11 / / is constituted, and further, in the fourth course C4 of the basic structure b, by displacing the insertion portion of the back yarn 2 by one needle to the left (see the white arrow in Fig. 3), the second changed structure b2 having a repeating unit of 4 courses in total of 12 / 00 / 10 / 22 / / is constituted.

[0019] Accordingly, the warp knitted fabric 10 of the present embodiment includes a first region X knitted by combining a front structure F and the first changed structure b1 of the back structure B, a second region Y knitted by combining the front structure F and the second changed structure b2 of the back structure B, and a third region Z in which the first region X and the second region Y are alternately arranged in the course direction for each repeating unit of 4 courses in total, whereby any arbitrary pattern can be expressed on the surface of the knitted fabric.

[0020] Here, in the first region X in which the front structure F and the first changed structure b1 are combined, as shown in Fig. 4, since the back yarn 2 is knitted while crossing the front yarn 1, even after knitting, the sinker loops of the front yarn 1 are located closer to the knitted fabric surface side than the back yarn 2, and the sinker loops of the front yarn 1 are exposed on the knitted fabric surface. Thereby, in the first region X, the color of the front yarn 1 is mainly clearly expressed.

[0021] In contrast, in the second region Y, which combines the front structure F and the second modified structure b2, as shown in Figure 5, the back yarn 2 is knitted alongside the front yarn 1 without crossing. As a result, as shown in Figure 6, after knitting, the insertion part of the back yarn 2 is pushed over the mesh of the front yarn 1 by its tension (see black arrow in Figure 6), reversing the vertical positional relationship between the sinker loop of the front yarn 1 and the sinker loop of the back yarn 2. The sinker loop of the back yarn 2 then becomes located on the surface side of the knitted fabric, and the sinker loop of the back yarn 2 is exposed on the surface of the knitted fabric. Consequently, in the second region Y, the color of the back yarn 2 is clearly expressed.

[0022] Furthermore, in the third region Z, where the first region X and the second region Y are arranged alternately in the course direction for every four repeating course units, an intermediate color between the color of the front yarn 1, which is clearly represented in the first region X, and the color of the back yarn 2, which is clearly represented in the second region Y, is clearly represented.

[0023] Thus, in this embodiment, the warp-knitted fabric 10, through the jacquard control of the jacquard reed that guides the back yarn 2 of the back structure B, allows the vertical positional relationship between the sinker loop of the front yarn 1 and the sinker loop of the back yarn 2 to be reversed after knitting in the region (second region Y) where the back yarn 2 is knitted without intersecting with the front yarn 1 of the front structure F. This allows the sinker loop of the back yarn, which is normally located on the inside of the warp-knitted fabric, to be exposed on the surface of the knitted fabric, thereby clearly displaying the color of the back yarn. Therefore, according to the warp-knitted fabric 10 of this embodiment, it is possible to express a multi-color pattern with significantly clearer and more vivid colors compared to conventional warp-knitted fabrics in which the color of the pattern-forming yarn on the back (inside) side is made to stand out on the surface of the knitted fabric through the holes in the hole structure of the front pattern-forming yarn.

[0024] Furthermore, the warp-knitted fabric 10 of this embodiment is knitted by combining a front structure F in which the front yarn 1 alternately repeats knitted sections and insertion sections in each course, and a back structure B in which the back yarn 2 alternately repeats knitted sections and insertion sections in each course, offset by one course from the front structure F. As a result, single-layered knitted sections are formed evenly at all needle positions, allowing for extremely thin knitting, and making it suitable for use as a warp-knitted fabric for innerwear such as shorts, girdles, and bras. In addition, since single-layered knitted sections are formed evenly at all needle positions in the warp-knitted fabric 10 of this embodiment, it can be easily knitted using a warp knitting machine.

[0025] Furthermore, in this embodiment, the warp-knitted fabric 10 is constructed by displacing the insertion portion of the back yarn 2 only in the second course C2 of the basic structure b of the back structure B through jacquard control of the jacquard reed to form the first modified structure b1, and by displacing the insertion portion of the back yarn 2 only in the fourth course C4 of the basic structure b to form the second modified structure b2. Therefore, the difference in the amount of back yarn 2 between these basic structure b, the first modified structure b1, and the second modified structure b2 can be minimized. Consequently, even in the case of a warp-knitted fabric having a stripe pattern where the pattern extends in the course direction (knitting direction), or a warp-knitted fabric where the pattern is concentrated in the hem, a good tension balance can be maintained during knitting, and it can be easily knitted using a warp knitting machine. [Examples]

[0026] The warp-knitted fabrics according to the present invention (Examples 1-5) were knitted and their performance was evaluated.

[0027] "Example 1" Using the same knitting structure as the warp-knitted fabric of the above embodiment (see Figure 2), and without using polyurethane elastic yarn, a multi-color camouflage warp-knitted fabric was knitted using black pre-dyed polyester yarn as the front yarn 1 and blue pre-dyed polyester yarn as the back yarn 2, and its elasticity was evaluated.

[0028] Front reed GB1; Front yarn: Polyester 84T / 36f (black) woolly 22 / 10 / 11 / 23 / / Jacquard reed JB2; back yarn: polyester 84T / 36f (blue) woolly 12 / 00 / 10 / 11 / / On-machine driving; 15 c / cm Finished size: 31 wale / inch, 70 coarse / inch Fabric evaluation: A multi-colored, patterned warp-knit fabric with good, slight stretch, as required for clothing and other garments, was obtained.

[0029] Example 2 By inserting elastic yarn 3 (see Figure 7), which was guided using a different reed, into the warp knitted fabric of Example 1 described above, a highly elastic triconnet-like multi-color warp knitted fabric 20 was knitted.

[0030] Front reed GB1; Front yarn: Polyester 84T / 36f (black) woolly 22 / 10 / 11 / 23 / / Jacquard reed JB2; back yarn: polyester 84T / 36f (blue) woolly 12 / 00 / 10 / 11 / / Another reed GB3; elastic yarn polyurethane 235T 22 / 11 / 10 / 11 / / On-machine driving; 20 c / cm Finished product: 32 wales / inch, 119 courses / inch Fabric evaluation: A warp-knitted fabric was obtained that possessed the fabric characteristics of triconette with added multi-color patterns.

[0031] "Example 3" By using polyester cationic yarn as the front yarn 1 and polyester regular yarn as the back yarn 2, it is possible to dye the fabric separately by post-dyeing. Furthermore, by knitting in a high-shrinkage yarn 4 (see Figure 8) that is guided by a separate reed, a multi-color warp-knitted fabric 30 with high elasticity and kickback properties was knitted without using polyurethane elastic yarn.

[0032] Front reed GB1; Front yarn: Polyester (cationic) 84T / 36f woolly 22 / 10 / 11 / 23 / / Jacquard reed JB2; backing yarn: Polyester (regular) 56T / 24f woolly 12 / 00 / 10 / 11 / / Another reed GB3; high shrinkage yarn Polyester (regular) 56T / 36f high shrinkage yarn 21 / 12 / 01 / 10 / / On-machine driving; 20 c / cm Finished width: 32 wales / inch, 100 courses / inch Fabric evaluation: A warp-knitted fabric was obtained that exhibits high heat-setting properties and can be finished in a wide variety of colors through post-dyeing.

[0033] "Example 4" By using nylon bright yarn as the front yarn 1 and nylon full-dull yarn as the back yarn 2, and by inserting elastic yarn 3 (see Figure 7) guided by a separate reed, a warp-knitted fabric 40 with good elasticity and a clear difference in luster was knitted.

[0034] Front reed GB1; Front yarn: Nylon (bright yarn) 28T / 12f raw silk 22 / 10 / 11 / 23 / / Jacquard reed JB2; Back yarn: Nylon (full dull yarn) 33T / 26f raw silk 12 / 00 / 10 / 11 / / Another reed GB3; elastic yarn polyurethane 235T 22 / 11 / 10 / 11 / / On-machine driving; 33 c / cm Finished width: 53 wales / inch, 160 courses / inch Fabric evaluation: A soft-touch, highly elastic warp-knitted fabric was obtained, with a clearly defined pattern created by the difference in gloss between the front and back yarns.

[0035] Example 5 By inserting elastic yarn 5 (see Figure 9), which was further guided by another reed, into the warp-knitted fabric of Example 4, a warp-knitted fabric 50 with a different stretch and texture than that of Example 4 was knitted.

[0036] Front reed GB1; Front yarn: Nylon (bright yarn) 33T / 26f raw silk 22 / 10 / 11 / 23 / / Jacquard reed JB2; Back yarn: Nylon (full dull yarn) 33T / 26f raw silk 12 / 00 / 10 / 11 / / Another reed GB3; elastic yarn polyurethane 235T 22 / 11 / 10 / 11 / / Furthermore, another reed GB4; elastic yarn polyurethane 33T 33 / 22 / 00 / 11 / / On-machine driving; 33 c / cm Finished width: 57 wales / inch, 160 courses / inch Fabric evaluation: A warp-knitted fabric was obtained in which a good balance of stretch in the warp and weft directions was added to the warp-knitted fabric of Example 4 described above.

[0037] Although the warp-knitted fabric of this embodiment has been described above, the present invention can also be implemented in other embodiments.

[0038] For example, in the above embodiments and examples 1 to 5, the front yarn 1 and back yarn 2, which have different properties from each other, are yarns that differ in at least one of the following: color, dyeability, gloss, and elasticity. However, the present invention is of course not limited to this, and other yarns that differ from each other, such as moisture absorption, water repellency, weather resistance, and contact cooling properties, can also be used. Various yarn combinations are possible, taking into account the functions and characteristics required for warp-knitted fabrics as innerwear or outerwear materials.

[0039] Furthermore, the warp-knitted fabric of the above embodiment comprises a first region X combining the front structure F and the first modified structure b1 of the back structure B, a second region Y combining the front structure F and the second modified structure b2 of the back structure B, and a third region Z in which the first region X and the second region Y are arranged alternately. However, the present invention is by no means limited thereto, and it is sufficient that the warp-knitted fabric includes at least a portion of a region (second region Y) in which the upper and lower positional relationship between the sinker loop of the front yarn 1 and the sinker loop of the back yarn 2 is reversed and the sinker loop of the back yarn 2 is exposed on the surface of the knitted fabric.

[0040] Furthermore, in the above embodiment, the first region X and the second region Y are arranged alternately in the course direction for a total of 4 repeating units in the third region Z. However, the number of repetitions of the repeating units of the first region X and / or the second region Y may be appropriately changed to arrange them alternately. In addition, there may be other regions formed by combining the basic tissue b of the front tissue F and the back tissue B, separate from the first region X and the second region Y.

[0041] The present invention can also be implemented in various forms with improvements, modifications, and variations based on the knowledge of those skilled in the art, without departing from its spirit. Furthermore, the invention may be implemented in a form in which any of the inventive features is replaced with other technologies within the scope of producing the same function or effect, and an inventive feature that is configured as a single unit may be configured as multiple components, or an inventive feature that is configured as multiple components may be configured as a single unit. [Industrial applicability]

[0042] The warp-knitted fabric according to the present invention can selectively expose multiple types of yarn with at least one different property, such as color, dyeability, luster, elasticity, moisture absorption, water repellency, weather resistance, and cool-to-the-touch feel, on the surface of the knitted fabric. Therefore, it can be widely used as a material for women's underwear such as shorts, girdles, and bras, as well as for clothing such as sportswear, uniforms, and outerwear. [Explanation of Symbols]

[0043] 10, 20, 30, 40, 50 warp knitted fabric 1 Front yarn 2 Backing thread 3. Elastic thread 4. High-shrinkage yarn 5 Elastic thread F Front Organization B Back Organization b (Back organization) Basic organization b1 (back tissue) primary change tissue b2 (back tissue) Second transformation tissue X First Domain Y Second Domain Z Third Domain

Claims

1. A warp-knitted fabric comprising a front structure knitted with front yarns guided by a front reed, and a back structure knitted with back yarns guided by a jacquard reed behind the front reed and having different properties from the front yarns, The aforementioned front structure is formed by the front yarn alternating between a knitted section and an insertion section in each course, and swinging alternately left and right in the knitted section every two courses. The back structure is formed by the back yarn alternating between an insertion portion and a knitted portion in each course, and swinging alternately left and right in the knitted portion every two courses, with the insertion portion of the back yarn being formed in the course where the knitted portion of the front yarn is formed. A warp-knitted fabric characterized in that the insertion portion of the back yarn is displaced by the jacquard control of the jacquard reed, and the sinker loops of the back yarn are exposed on the surface of the knitted fabric in the region where the back yarn is knitted without intersecting the front yarn.

2. The warp-knitted fabric according to claim 1, characterized in that the back yarn has a different color from the front yarn.

3. The warp-knitted fabric according to claim 1, characterized in that the back yarn has a different luster than the front yarn.

4. The warp-knitted fabric according to any one of claims 1 to 3, further characterized in that elastic yarn or highly shrinkable yarn, which has been guided by another reed, is inserted or knitted into it.

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