Knitted weft-knitted single-sided double-liner fabric and double-jaw sinker knitting method thereof

Abstract

The fabric sequentially comprises a surface layer, a connecting layer and a liner layer from top to bottom, the surface layer is formed by looping and weaving surface yarns, the surface layer is one of plain stitch, single-side composite stitch or single-side jacquard stitch, the lining of the connecting layer is lined with the yarns to form a tuck structure, and the lining of the connecting layer is lined with the yarns to form a double-jaw sinker knitting structure. The tucking structure is hung on the loop arc of the surface layer loop, and the liner yarn of the liner layer is hung on the inner liner yarn to form a suspended arc structure. A multi-needle-passage knitting needle or a knitting needle selected by a needle selection mechanism is matched with a double-jaw sinker, and the double-liner fabric is obtained through circular knitting of three steps of liner yarn feeding, lining liner yarn hanging and surface layer knitting. The double-liner fabric obtained by adopting the weaving method disclosed by the invention is small in yarn consumption, thick, warm-keeping and light in gram weight, and has a relatively good application prospect.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of knitting, and particularly relates to a knitted weft-knitted single-face double-layer cushion fabric and a double-piece jaw sinker knitting method thereof. BACKGROUND

[0002] The cushion knitted fabric is a special variety of weft-knitted fabric, which refers to a knitting system in which only tuck and float knitting is performed without loop formation knitting, and the formed fabric is called a cushion knitted fabric. According to the structural difference, the fabric can be divided into two categories: single-face cushion fabric and double-face cushion fabric. Among them, the single-face cushion fabric is a widely used category, mainly including plain knitted cushion and plating knitted cushion.

[0003] From the weaving structure, one course of the plain knitted cushion fabric is knitted by one loop yarn and one cushion yarn; one course of the plating knitted cushion fabric is knitted by one face yarn, one lining yarn and one cushion yarn. After being knitted, the cushion fabric is in loop pile form, and after general dyeing and finishing, the loop pile fabric is obtained; after dyeing and finishing, the cushion fabric is treated by the (loop pile or) napping finishing process, and the cushion fabric forms the napped fabric. The cushion fabric can present a rich pile texture, and is widely used in many fields such as clothing, home textiles and toys due to its soft skin and good warmth, and is an important fabric selection for winter clothing.

[0004] The single-face plain knitted cushion fabric generally uses a finer cushion yarn to produce a thin fabric; the plating knitted cushion fabric generally uses a thicker cushion yarn to produce a thick fabric, which has better warmth.

[0005] The weft-knitted cushion fabric still has many deficiencies under the existing technical conditions, mainly including: (1) for the single-face plain knitted cushion fabric, if a thicker cushion yarn is used to improve the thickness and warmth of the fabric, the "exposed bottom" phenomenon that the plain knitted loop cannot completely cover the cushion yarn is prone to occur, which seriously affects the appearance quality of the fabric; if a finer cushion yarn is used to avoid the "exposed bottom" problem, the thickness of the fabric will be insufficient, the warmth will be greatly reduced, and the fabric cannot meet the wearing needs in cold areas and in autumn and winter; (2) the plating knitted cushion fabric improves the "exposed bottom" defect of the plain knitted cushion fabric to a certain extent, but still has the problem of single product form, and it is difficult to knit the cushion fabric with various surface textures and jacquard patterns, especially to conveniently produce multi-color jacquard products with pure color blocks (without color blocks), which limits the further expansion of the cushion fabric to the high-end clothing and home textile market. SUMMARY

[0006] The present application is to solve the above problems, and provides a knitted weft-knitted single-face double-layer cushion fabric and a double-piece jaw sinker knitting method thereof.

[0007] The present invention adopts the following technical solution: a knitted weft-knitted single-sided double-layer padding fabric, which includes a surface layer, a connecting layer and a padding layer from top to bottom. The surface layer is knitted from yarn in loops. The surface layer is one of plain knit, single-sided composite knit or single-sided jacquard knit. The padding yarn of the connecting layer forms a loop structure and the loop structure is suspended on the loops of the surface layer. The padding yarn of the padding layer is suspended on the padding yarn to form a suspended arc structure.

[0008] The double-jaw sinker knitting method for knitted weft-knitted single-sided double-padded fabric uses multi-needle knitting needles or needles selected by a needle selection mechanism in conjunction with the double-jaw sinker. The double-padded fabric is obtained by cyclically knitting through three steps: feeding the padding yarn, attaching the inner padding yarn, and knitting the outer layer.

[0009] The knitting method for the double-jaw sinker plate of a knitted weft-knitted single-sided double-padded fabric includes the following steps: S1 Knitting of the lining yarn: Hold the knitting needle to be knitted under the grip of the double jaw sinker, and move the knitting needle to the upper jaw retraction position. At this time, the old loop is in the lower jaw position, and the needle tongue of the knitting needle is higher than the upper jaw. The sinker moves back, and the yarn guide inserts the lining yarn on the upper jaw to pad the knitting needle. The sinker moves towards the center of the needle cylinder, pushing the lining yarn onto the needle bar below the needle tongue. At the same time, it pushes the floating part of the lining yarn to the back of the needle, completing the feeding of the lining yarn. S2 Knitting of Lining Yarn: After the lining yarn is fed in, it is positioned on the upper jaw gripping surface, and the knitting needles knitting the lining yarn remain in a high-position loop-off state. The needle is pressed down to the normal loop-off or tucking height using the pressure cam, while simultaneously selecting the knitting needle to knit the lining yarn and raising it to the normal loop-off or tucking height. The sinker retracts, and the lining yarn is fed into both the knitting needles knitting the lining yarn and the knitting needles knitting the lining yarn through the lining yarn guide. The pressure cam drives the hooks of all the lining yarn knitting needles down to below the upper jaw line. As the sinker advances towards the center of the needle cylinder, the lining yarn is pulled off the loop and suspended on the lining yarn, forming a suspended arc, completing the feeding of the lining yarn. The sinker retracts, and the knitting needles descend to the lower jaw height, while the old loops on the knitting needles knitting the lining yarn remain in a looped state. The sinker advances again, pushing the floating yarn of the lining yarn to the back of the needle at the lower jaw position, completing the knitting of the double lining yarn. S3 Knitting the Surface Layer: Before knitting the surface layer, all knitting needles are hung with old loops formed in the previous cycle, and some needles also carry unformed lining yarn inside the needle hook; the lining yarn will form loops and hang on the old loops in the next knitting cycle, and the lining yarn hangs on the lining yarn without interfering with the surface layer knitting. The surface layer knitting is carried out on the lower jaw holding surface, and the surface layer is one of plain knit, single-sided composite knit, or single-sided jacquard knit.

[0010] The knitting method for the double-jaw sinker plate of a knitted weft-knitted single-sided double-padded fabric includes the following steps: S1 Knitting of the padding yarn: With the double-jaw sinker holding the needle to be knitting the padding yarn, move the needle to the loop-removal position. At this time, the old loop is in the lower jaw position, and the needle hook height is higher than the upper jaw. The sinker moves back, and the yarn guide inserts the padding yarn into the needle at the upper jaw position. The padding yarn enters the needle hook. The needle descends and completes the yarn bending at the upper jaw position. The sinker moves forward towards the center of the needle cylinder, pushing the floating part of the padding yarn to the back of the needle, completing the padding yarn padding. S2 Knitting of Lining Yarn: After the lining yarn is laid, it is inside the needle hook and held by the sinker. The needles knitting the lining yarn are raised to the lining yarn unwinding height by the needle lifter, so that the lining yarn is unwound onto the needle bar. Then the needles are lowered to the normal unwinding height or the tucking height. At the same time, the needles to be knitted for the lining yarn are selected and raised to the normal unwinding height or the tucking height. The sinker moves back, and the yarn guide feeds in the lining yarn. All needles are driven down to below the upper jaw line by the pressure needle cam. When the sinker moves towards the center of the needle cylinder, the lining yarn is unwound under the tension and hangs on the lining yarn to form a suspended arc, completing the feeding of the lining yarn. The sinker moves back, and the needles are lowered to the lower jaw height. The old loops on the needles knitting the lining yarn remain in a looped state. The sinker moves forward again, pushing the float of the lining yarn to the back of the needle at the lower jaw position, completing the knitting of the double lining yarn. S3 Knitting the Surface Layer: Before knitting the surface layer, all knitting needles are hung with old loops formed in the previous knitting cycle, and some knitting needles also carry unformed lining yarn inside the needle hook; the lining yarn will form a loop and hang on the old loops in the next knitting cycle, and the lining yarn hangs on the lining yarn without interfering with the surface layer knitting. The surface layer knitting is carried out on the lower jaw holding surface, and the surface layer is one of plain knit, single-sided composite knit or single-sided jacquard knit.

[0011] The advantages of this invention are as follows: (1) In the weaving method of the present invention, double jaw sinker plates are used to weave double padding fabric. The inner padding yarn forms a loop on the surface layer, and the padding yarn forms another loop on the connecting layer. The loops formed by the inner padding yarn and the padding yarn are stable and located on the reverse side of the fabric, which avoids the "bottom showing" phenomenon of the padding fabric and improves the quality of the product. The weaving length of the double padding fabric is controllable and the product quality is reliable.

[0012] (2) In the double-layered padding fabric of the present invention, both the inner padding yarn and the padding yarn are woven from single yarns to form a padding structure. The amount of yarn used in the fabric is less than that of the padding structure with added yarn. The fabric of the same thickness is lighter and has a lower weight, which reduces the cost of the fabric and has good application prospects.

[0013] (3) The weft-knitted single-sided padding fabric formed by the weaving method of the present invention has an additional tuck structure when the surface layer is a single-sided jacquard structure, which can form a solid color jacquard woven surface layer that avoids long floating threads. The padding layer can also form a patterned weaving effect. In addition, the surface layer can also adopt a variety of single-sided weft knitting structures to fully meet the fabric needs of the high-end market. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the weft-knitted single-sided plain needle double-padded fabric of the present invention.

[0015] Figure 2 This is a triangular configuration diagram of the weft-knitted single-sided plain needle double-padded fabric with straight padding yarn and double jaw sinker weaving method of the present invention.

[0016] Figure 3 This is a triangular configuration diagram of the weft-knitted single-sided jacquard double-padded fabric of the present invention, showing the double-jaw sinker weaving method of the padding yarn curved yarn type. Detailed Implementation

[0017] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0019] Example 1: This example uses a straight-padded double-jaw sinker fabric knitted with weft knitting.

[0020] A schematic diagram of the structure of a weft-knitted single-sided plain knit double-padded fabric, as shown below. Figure 1 As shown, rows I, II, III, and IV correspond to four different needle heights, arranged in a straight line from high to low, which can be respectively... Figure 2 The triangular action corresponding to the height in the middle forms the required needle movement trajectory.

[0021] Includes the following steps: S1 Knitting padding yarn 1 (or 4): With the sinker holding the knitting needle I (or III) of the padding yarn, the knitting needle I (or III) moves from the triangle 311 (or 334) to the loop-off position, so that the tip of the needle tongue is higher than the upper jaw and the old loop is in the lower jaw position. The sinker moves back, and the yarn guide puts the padding yarn 1 (or 4) on the knitting needle I (or III) above the upper jaw. The sinker moves forward towards the center of the needle cylinder, pushing the padding yarn 1 (or 4) under the needle tongue onto the needle bar, pushing the floating part of the padding yarn 1 (or 4) to the back of the needle, thus completing the feeding of the padding yarn 1 (or 4).

[0022] S2 Knitting of Lining Yarn 2 (or 5): After feeding in lining yarn 1 (or 4), lining yarn 1 (or 4) is at the upper jaw height, and lining needle I (or III) is still in a high-position unwinding state. Use the pressure cam 312 (or 335) to press lining needle I (or III) down to the normal unwinding height; select needles II and IV that need to knit lining yarn 2 (or 5) and raise them to the normal unwinding height using cams 322 and 342 (or 325 and 345). The sinker moves back, and lining yarn 2 (or 5) is fed in using the lining yarn guide. The pressure cam lowers all the rising needles I, II, and IV (or II, III, and IV) below the upper jaw line. The sinker moves towards the center of the needle cylinder, and lining yarn 1 (or 4) is pulled and unwinds onto lining yarn 2 (or 5) to form a suspended arc. The feeding of lining yarn 2 (or 5) is complete. As the sinker moves back, needles I, II, and IV (or II, III, and IV) continue to descend to the lower jaw height under the action of cams 312, 322, and 342 (or 325, 335, and 345) so that the old loops are looped onto the needle tongue. Then the sinker moves forward, pushing the inner lining yarn 2 (or 5) float to the back of the needle at the lower jaw position. This completes the knitting of the double lining yarn.

[0023] S3 Knitting: Plain knit yarn 3 (or 6): Before knitting the surface layer, all needles I, II, III, and IV have loops from the previous cycle of the surface layer. Some needles I, II, and IV (or II, III, and IV) also have lining yarn 2 (or 5) inside the needle hook. The lining yarn 1 (or 3) hangs on the lining yarn 2 (or 5) and has left the knitting area, so it does not affect the knitting of the surface layer structure. In this example, the surface layer structure is a plain knit structure. The knitting process is as follows: all needles I, II, III, and IV are pulled back by the action of the plain knit triangle, and the surface yarn 3 (or 6) is fed in. The yarn is then used for padding, looping, bending, unhooking, and loop formation to complete the knitting of the plain knit surface layer.

[0024] By continuously repeating the knitting steps S1-S3, the weft-knitted single-sided plain knit double-padded fabric can be completed.

[0025] Example 2: This example demonstrates the weft-knitted single-sided double-jaw sinker jacquard double-pad fabric, using a double-jaw sinker weaving method with bent padding yarn.

[0026] Weft-knitted single-sided jacquard double-padded fabric in such Figure 1 Based on this, double padding is first knitted, followed by jacquard knitting. Each loop system can be configured with a three-position needle selection system. For ease of explanation, the needles corresponding to the four different needle heights in rows I, II, III, and IV are arranged in descending order, respectively... Figure 3 The triangular effect corresponding to the height is used to illustrate the double-padded weave; the jacquard weave is in Figure 3 The needle selection is illustrated using a three-position triangle system with selectable positions. This configuration allows for the formation of the desired needle movement trajectory. Figure 3 The triangular configuration is used to illustrate the weaving of the three-color jacquard double-padded fabric.

[0027] Includes the following steps: S1 Knitting padding yarn 1 (or 6): With the sinker holding the knitting needle I (or III), the knitting needle I (or III) is raised to the loop-off position by the action of the cam 411 (or 436). The height of the needle hook of the knitting needle I (or III) is above the upper jaw, and the old loop is at the lower jaw position. The sinker moves backward, and the yarn guide puts the padding yarn 1 (or 6) on the upper jaw to pad the knitting needle I (or III). The padding yarn 1 (or 6) is fed into the needle hook, and the knitting needle I (or III) descends on the upper jaw line to bend the yarn. The sinker moves towards the center of the needle cylinder, pushing the floating part of the padding yarn 1 (or 6) to the back of the needle, thus completing the padding of the padding yarn 1 (or 6).

[0028] S2 Knitting of Lining Yarn 2 (or 7): After inserting lining yarn 1 (or 6), lining yarn 1 (or 6) is positioned inside the hook of needle I (or III). Lining yarn 1 (or 6) is held by the sinker. Using the cam 412 (or 437), the lining needle I (or III) is raised to the height of the unwinding loop of lining yarn 1 (or 6), causing lining yarn 1 (or 6) to unwind onto the needle bar. Simultaneously, needles II and IV, selected for knitting lining yarn 2 (or 7), are raised to the unwinding loop height by the action of cams 422 and 442 (or 427 and 447). The sinker retracts, and the yarn guide feeds in the lining yarn 2 (or 7). The pressure cams 412, 422, 442 (or 427, 437, 447) lower the knitting needles I, II, IV (or II, III, IV) to below the upper jawline. The sinker advances towards the center of the needle cylinder, and the lining yarn is pulled and unloops onto the lining yarn 2 (or 7), forming a suspended arc. The feeding of the lining yarn is complete. The sinker retracts, and the knitting needles I, II, IV (or II, III, IV) continue to descend to the lower jawline height. Then, the sinker advances, pushing the float of the lining yarn 2 (or 7) onto the back of the needle at the lower jawline position. The knitting of the double lining yarn is completed.

[0029] S3 jacquard yarn (taking three-color jacquard as an example) 3, 4, and 5 (or 8, 9, and 10): When knitting three-color jacquard, all needles I, II, III, and IV have old loops from the previous jacquard cycle. Some needles I, II, and IV (or II, III, and IV) also have lining yarn 2 (or 7) inside the needle hook. Lining yarn 1 (or 6) hangs on lining yarn 2 (or 7), has left the knitting area, and does not affect the knitting of the jacquard structure. In this example, the single-sided jacquard structure is a three-color jacquard structure. Its knitting process is as follows: According to the requirements of the pattern, the first jacquard color 3 (or 8) is knitted using a three-position needle selection mechanism using loop knitting, tuck knitting, and float knitting. The loops of the loop knitting are used to represent the pattern; the tuck knitting is used to avoid long floats in the single-sided jacquard fabric; the float knitting conceals the appearance of this color. For a three-position needle selection mechanism, mechanical needle selection can be used for knitting small pattern fabrics; electronic needle selection is used for knitting large pattern fabrics. The second jacquard color 4 (or 9) and the third jacquard color 5 (or 10) repeat the knitting process of the first jacquard color.

[0030] The weaving of the weft-knitted single-sided jacquard double-padded fabric can be completed by continuously repeating the above weaving steps S1-S3.

Claims

1. A knitted weft-knitted single-sided double-layer padding fabric, characterized in that: From top to bottom, it includes a surface layer, a connecting layer, and a padding layer. The surface layer is woven from yarn in loops and is one of plain knit, single-sided composite, or single-sided jacquard weave. The padding yarn of the connecting layer forms a looped structure and is suspended on the loops of the surface layer. The padding yarn of the padding layer is suspended on the padding yarn to form a suspended arc structure.

2. The weaving method of the knitted weft-knitted single-sided double-layer padding fabric according to claim 1, characterized in that: Using multi-needle knitting needles or needles selected by a needle selection mechanism, and in conjunction with double jaw sinkers, the double-padded fabric is obtained through a three-step cyclic knitting process: feeding in padding yarn, attaching inner padding yarn, and knitting the outer layer.

3. The weaving method of the knitted weft-knitted single-sided double-layer padding fabric as described in claim 1, characterized in that: Includes the following steps: S1 Knitting of Padding Yarn: Hold the knitting needle with the double jaw sinker plate and move it to the upper jaw retraction position. At this time, the old loop is in the lower jaw position and the needle tongue is higher than the upper jaw. The sinker plate moves back and the yarn guide directly inserts the padding yarn into the knitting needle on the upper jaw. The sinker plate moves towards the center of the needle cylinder and pushes the padding yarn onto the needle bar below the needle tongue. At the same time, it pushes the floating part of the padding yarn to the back of the needle, thus completing the feeding of the padding yarn. S2 Knitting of Lining Yarn: After the lining yarn is fed in, it is positioned on the upper jaw gripping surface, and the knitting needles knitting the lining yarn remain in a high-position loop-off state. The needle is pressed down to the normal loop-off or tucking height using the pressure cam, while simultaneously selecting the knitting needle to knit the lining yarn and raising it to the normal loop-off or tucking height. The sinker retracts, and the lining yarn is fed into both the knitting needles knitting the lining yarn and the knitting needles knitting the lining yarn through the lining yarn guide. The pressure cam drives the hooks of all the lining yarn knitting needles down to below the upper jaw line. As the sinker advances towards the center of the needle cylinder, the lining yarn is pulled off the loop and suspended on the lining yarn, forming a suspended arc, completing the feeding of the lining yarn. The sinker retracts, and the knitting needles descend to the lower jaw height, while the old loops on the knitting needles knitting the lining yarn remain in a looped state. The sinker advances again, pushing the floating yarn of the lining yarn to the back of the needle at the lower jaw position, completing the knitting of the double lining yarn. S3 Knitting the Surface Layer: Before knitting the surface layer, all knitting needles are hung with old loops formed in the previous knitting cycle, and some needles also carry unformed lining yarn inside the needle hook; the lining yarn will form loops and hang on the old loops in the next knitting cycle, and the lining yarn hangs on the lining yarn without interfering with the surface layer knitting. The surface layer is one of plain knit, single-sided composite, or single-sided jacquard knit.

4. The weaving method of the knitted weft-knitted single-sided double-layer padding fabric as described in claim 1, characterized in that: S1 Knitting of the padding yarn: Hold the knitting needle with the double jaw sinker and move it to the loop-off position. At this time, the old loop is in the lower jaw position, and the needle hook height is higher than the upper jaw. The sinker moves back, and the yarn guide inserts the padding yarn into the knitting needle at the upper jaw position. The padding yarn enters the needle hook. The knitting needle descends and completes the yarn bending at the upper jaw position. The sinker moves towards the center of the needle cylinder and pushes the floating part of the padding yarn to the back of the needle, completing the padding yarn padding. S2 Knitting of Lining Yarn: After the lining yarn is laid, it is inside the needle hook and held by the sinker. The needles knitting the lining yarn are raised to the lining yarn unwinding height by the needle lifter, so that the lining yarn is unwound onto the needle bar. Then the needles are lowered to the normal unwinding height or the tucking height. At the same time, the needles to be knitted for the lining yarn are selected and raised to the normal unwinding height or the tucking height. The sinker moves back, and the yarn guide feeds in the lining yarn. All needles are driven down to below the upper jaw line by the pressure needle cam. When the sinker moves towards the center of the needle cylinder, the lining yarn is unwound under the tension and hangs on the lining yarn to form a suspended arc, completing the feeding of the lining yarn. The sinker moves back, and the needles are lowered to the lower jaw height. The old loops on the needles knitting the lining yarn remain in a looped state. The sinker moves forward again, pushing the float of the lining yarn to the back of the needle at the lower jaw position, completing the knitting of the double lining yarn. S3 Knitting the Surface Layer: Before knitting the surface layer, all knitting needles are hung with old loops formed in the previous knitting cycle, and some knitting needles have unformed lining yarn inside their hooks; the lining yarn will form loops and hang on the old loops during the next knitting cycle, and the lining yarn hangs on the lining yarn without interfering with the surface layer knitting. The surface layer knitting is carried out on the lower jaw holding surface, and the surface layer is one of plain knit, single-sided composite knit, or single-sided jacquard knit.

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