Lace fabric having enhanced weft openness and three-dimensional pattern effect

Abstract

A lace fabric having enhanced weft openness and a three-dimensional pattern effect, composed of a skin-contact layer L1 and a pattern layer L2, the skin-contact layer L1 being woven from at least 4 sets of yarns, Y1, Y2, Y3 and Y4, interlaced with each other, Y1, Y2, Y3 and Y4 together forming a fabric base layer; the pattern layer L2 is formed by weaving 1 or more sets of yarns with the skin-contact layer L1 to form a desired pattern, and at least 1 set of yarns Y5 being a weaving yarn, and a non-weaving yarn Y6 being added as needed for the design to weave together. Y1 is spandex, fully threaded with a GB1 chain stitch structure; Y2 is a filament yarn, fully threaded with a GB2 chain stitch structure; Y3 is a filament yarn, divided equally into Y3-1 and Y3-2, and threaded in a 1-in 1-out manner in JB1 and JB2 modified weft insertion structures; Y4 is spandex, fully threaded with a GB3 weft insertion structure; Y5 is a weaving yarn, threaded in a jacquard guide bar according to design needs with a modified weft insertion structure; Y6 is a non-weaving yarn, threaded in a jacquard guide bar according to design needs with a modified weft insertion structure.

Description

Lace fabric with enhanced weft opening and pattern three-dimensional effect Technical Field

[0001] The utility model relates to the field of design and preparation of textile functional fabrics, and in particular to a lace fabric with enhanced weft opening and pattern three-dimensional effect. Background Art

[0002] The increasing application of lace fabrics in lingerie and other fields is driving continuous improvement in lace fabric development and production. Market research and production feedback revealed that while there are numerous lace products on the market, while the patterns are diverse, their appearance and layering are largely identical, with few breakthroughs. Furthermore, yarn slippage and yarn casting can affect production timelines and the quality of finished products. Furthermore, the low weft-direction stretch of traditional lace restricts its use in finished garments.

[0003] CN 219059301 U discloses a lace fabric with enhanced weft opening and anti-fragmentation, and a weaving method thereof. The fabric structure comprises warp straight chain weaves G1 and G2, connected by weft inserts J1 and J2 that connect adjacent straight chain weaves to form a fabric framework layer with varying mesh sizes. Weft inserts G3 and G4 provide warp shrinkage, and are woven together with weft insert yarns with N < 95 per single cycle, as required by the pattern design. G1, J1, and J2 are filament yarns, while G2, G3, and G4 are spandex. The yarns used in the pattern weave are selected based on the design requirements. The benefits of this invention are as follows: 1. The reversed weft-insertion of J1 and J2 increases the linear density of the yarns, enhancing the structural strength of the fabric. Furthermore, interweaving with the spandex increases the weft-wise stretchability of the fabric, achieving a warp-wise and weft-wise stretchability of ≥80% under a force of 7.5 Lbf as measured by the LTD03 test method. 2. The chain-weave structure and inherent shrinkage of spandex G2 increase the tightness between the loops, increasing the sliding resistance between the yarns and ensuring that the yarns remain unraveled even after damage. 3. Even after damage, the fabric remains unraveled after 50 washes as measured by the AATCC 135 test method.

[0004] To solve the above problems, after many technical improvements and production tests, the present invention provides a lace fabric and weaving method that enhances the weft opening and the three-dimensional effect of the pattern. Compared with the above patents, the present invention has more advantages in filling the gaps in market demand:

[0005] 1. GB1 and GB2 described in the present invention correspond to G1 and G2 of the above patent, but are more flexible and changeable in structure, and are not limited to the straight chain structure, that is, the fabric appearance is more variable;

[0006] 2. The JB1 and JB2 described in the present invention correspond to the J1 and J2 of the above patent, but are not limited to reverse lapping, that is, the fabric appearance is more variable;

[0007] 3. The weft opening of the fabric of the utility model is greater than that of the above patent, and its application range will be wider;

[0008] 4. The pattern yarn of the fabric described in the present invention adopts woven yarn, which makes the pattern of the fabric have the advantages of elastic contour and thick pattern blocks, thereby enhancing the three-dimensional effect of the fabric, and can effectively improve the problems of pattern yarn slippage and yarn throwing in the production process.

[0009] Summary of the Invention

[0010] The utility model provides a lace fabric and a weaving method that enhance the weft opening and the three-dimensional effect of the pattern. The fabric has a high weft stretch rate and a good three-dimensional effect of the pattern. In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0011] A lace fabric and a weaving method for enhancing weft opening and the three-dimensional effect of a pattern, comprising a fabric body. The fabric comprises a base layer L1 and a pattern layer L2, wherein the base layer L1 is woven from at least four groups of yarns (Y1, Y2, Y3, and Y4) interlaced and interwoven, with spandex Y1, filaments Y2, filaments Y3, and spandex Y4 forming the base layer of the fabric; the pattern layer L2 is woven from at least one group of yarns interlaced and interwoven with L1 to form the desired pattern, with at least one group of yarns (Y5) being woven yarns, and non-woven yarns (Y6) being added as needed for the weaving. Y1 is spandex, fully threaded through GB1 in a braided chain structure; Y2 is filament yarn, fully threaded through GB2 in a braided chain structure; Y3 is filament yarn, divided equally into Y3-1 and Y3-2, and then threaded through JB1 and JB2 in a 1-through-1-open pattern to achieve a variable weft inlay structure; Y4 is spandex, fully threaded through GB3 in a weft inlay structure; Y5 is a braided yarn, threaded through the pattern bar group in a variable weft inlay structure according to design requirements; Y6 is a non-braided yarn, threaded through the pattern bar group in a variable weft inlay structure according to design requirements.

[0012] Compared to traditional lace fabrics, the elastic yarn Y1 added to this invention structurally locks the weft-woven yarns, significantly enhancing the fabric's weft-direction stretchability through normal finishing processes. Furthermore, the pattern yarns used in this fabric are woven with elastic, bony yarns, enhancing the thickness of the pattern blocks and giving the pattern a strong three-dimensional effect. The yarn loops, under the influence of tension, partially or completely embed into these grooves, ultimately increasing friction or restraint between the yarns, reducing deformation, slippage, and yarn throw, thereby enhancing the fabric's quality.

[0013] The fabric is characterized in that: the fabric is subjected to a tensile test according to the LTD03, 7.5 lbf standard, and the weft opening is ≥90%;

[0014] The fabric is characterized in that: the braided yarn is braided from ≤4 groups of yarns, and the yarn denier is ≥10D; and the fabric has the characteristics of surface grooves and a hollow cross-section.

[0015] The fabric is characterized in that the raw materials used for crocheting yarns are all filaments, and the materials can be freely selected from 1 to 4 kinds of materials for weaving. The draft ratio during crocheting is in the range of 1.1 to 1.3, preferably 1.2.

[0016] The fabric is characterized in that: among the raw materials for crocheting yarns, one group of yarns is elastic yarn, and the remaining 1-3 groups of yarns are freely selected from filament materials according to design requirements, and the draft ratio during crocheting ranges from 1.5 to 3.0, preferably 1.6.

[0017] The fabric is characterized in that: Y1 and Y2 have a chain-knit structure, which can be either a straight chain or a variable chain-knit structure, and the basic inlay yarn numbers are 1-0 / 0-1 / / ; Y3-1 and Y3-2 have a variable weft inlay structure, and the basic inlay yarn numbers are 0-0 / 2-2 / / , and the two sets of yarns can be inlay yarns in the same direction or in opposite directions; Y4 has a weft inlay structure, which can be either single-needle weft inlay or variable weft inlay, and the basic inlay yarn numbers are 0-0 / 1-1 / / ; Y5 and Y6 have a variable weft inlay structure, and the basic inlay yarn numbers are 0-0 / 1-1 / / . BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1: Schematic diagram of the cross section of the fabric.

[0019] Figure 2: Schematic diagram of the appearance of the braided yarn.

[0020] Figure 3: Combination of the raw materials before knitting the yarn (including but not limited to).

[0021] Figure 4: Schematic diagram of crocheting of braided yarn.

[0022] Figure 5: Weft tensile test curve of the finished product of the embodiment (LTD03, 7.5 lbf). DETAILED DESCRIPTION

[0023] In order to facilitate understanding by those skilled in the art, the technical solutions in the embodiments of the present invention are clearly and completely described below.

[0024] The yarn method and yarn selection of a lace fabric with enhanced weft opening and enhanced three-dimensional effect of the pattern as shown in Figures 1 to 5 are as follows:

[0025] Y1(GB1): Spandex 40D, full threading, straight chain structure;

[0026] Y2(GB2): PA6 30D / 12F SD FDY, full threading, straight chain structure;

[0027] Y3 (JB1, JB2): PA6 30D / 12F SD FDY, 1 threaded and 1 unthreaded, variable weft insertion structure;

[0028] Y4(GB3): Spandex 70D, full thread, single needle weft insertion;

[0029] Y5 (patterned comb group): PA6 / Spandex 78 / 22 210D SD Stretch 1.5 braided yarn, threaded according to the process design, with a variable weft insertion structure;

[0030] Y6 (patterned comb group): PA6 70D / 24F SD DTY, threading according to process design, variable weft insertion structure.

[0031] (1) Warping of filaments and composite yarns:

[0032] Warping machine model: Karl Mayer DS21 / 30NC-2, negative yarn feeding.

[0033] Warping temperature: 23℃ Warping humidity: 65%

[0034] Under the above temperature and humidity conditions, the workshop sets the warping process parameters and applies warping oil to the yarn according to actual conditions.

[0035] (2) Spandex warping:

[0036] Warping machine model: Karl Mayer DSE-H21 / 30NC-2, positive yarn feeding.

[0037] Warping temperature: 24℃ Warping humidity: 78%

[0038] The workshop sets the warping process parameters under the above temperature and humidity conditions.

[0039] Machine model: FJ83 / 1B, machine gauge: E24

[0040] Post-processing process: overflow washing → pre-setting → thread cutting → overflow dyeing → finishing

[0041] Tensile test:

[0042] Test standard: LTD03 7.5lbf

[0043] Test conditions: pull-out speed 10 inches / minute, return speed 20 inches / minute, clamp width 3 inches, clamp gap 12.7 cm

[0044] Test results: W: 102%

[0045] The embodiments described are only specific implementation methods of the preferred scheme of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical scheme and inventive concept of the present invention, should be included in the protection scope of the present invention.

Claims

1. A lace fabric with enhanced weft opening and three-dimensional effect of flower pattern, characterized in that: The fabric consists of a skin-contacting layer L1 and a pattern layer L2, wherein the L1 skin-contacting layer is formed by at least four groups of yarns (spandex (Y1), filaments (Y2), filaments (Y3), and spandex (Y4)) interlaced and woven with each other, wherein the spandex (Y1), filaments (Y2), filaments (Y3), and spandex (Y4)) together form the bottom layer of the fabric; the L2 pattern layer is formed by at least one group of yarns interlaced and woven with L1 to form the desired pattern, and at least one group of yarns (Y5) is woven yarn.

2. The lace fabric according to claim 1, characterized in that: Among them, Y1 is spandex, which is fully threaded through GB1 to form a braided chain structure; Y2 is filament, which is fully threaded through GB2 to form a braided chain structure; Y3 is filament, which is equally divided into Y3-1 and Y3-2 and then threaded through JB1 and JB2 in a 1-through-1-empty manner to form a variable weft insertion structure; Y4 is spandex, which is fully threaded through GB3 to form a variable weft insertion structure; Y5 is woven yarn, which is threaded through the pattern comb group to form a variable weft insertion structure according to design requirements, and the optional Y6 is non-woven yarn, which is threaded through the pattern comb group to form a variable weft insertion structure according to design requirements.

3. The lace fabric according to claim 1, characterized in that: According to LTD03, 7.5lbf standard, the weft opening of the tensile test is ≥90%.

4. The lace fabric according to claim 1, characterized in that: The braided yarn is woven from ≤4 groups of yarns, and the yarn denier is ≥10D; it has the characteristics of surface grooves and a hollow cross-section.

5. The lace fabric according to claim 1 or 3, characterized in that: The raw materials for crochet weaving yarn are all filaments, and the materials can be freely selected from 1 to 4 kinds of materials for weaving. The draft ratio during crochet is in the range of 1.1 to 1.3, preferably 1.

2.

6. The lace fabric according to claim 1 or 4, characterized in that: Among the raw materials for crochet knitting yarn, one group of yarns is elastic yarn, and the remaining 1-3 groups of yarns are freely selected from filament materials according to design requirements. The draft ratio during crochet is in the range of 1.5-3.0, preferably 1.

6.

7. The lace fabric according to claim 1, characterized in that: Y1 and Y2 adopt chain-knitting structure, which can be straight chain or variable chain-knitting, and the basic inlay yarn number is 1-0 / 0-1 / / ; Y3-1 and Y3-2 adopt variable weft inlay structure, and the basic inlay yarn number is 0-0 / 2-2 / / , and the two sets of yarn can be inlay yarn in the same direction or in reverse direction; Y4 adopts weft inlay structure, which can be single needle weft inlay or variable weft inlay, and the basic inlay yarn number is 0-0 / 1-1 / / ; Y5 and Y6 adopt variable weft inlay structure, and the basic inlay yarn number is 0-0 / 1-1 / / .

8. The lace fabric according to claim 1, characterized in that: The fabric is woven together with added braiding yarn (Y6).

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