A recyclable four-way stretch lace fabric with enhanced 3D effect and preparation method thereof

Abstract

A recyclable four-way stretch lace fabric with an enhanced 3D effect and a preparation method thereof includes a fabric body woven with a pattern. The fabric body is woven using a combination of three yarns: yarn Y1, yarn Y2, and yarn Y3. Yarns Y1 and Y2 are elastic composite yarns made of the same material and do not contain spandex. Yarn Y3 is made of the same material as yarns Y1 and Y2 and is an elastic composite yarn that does not contain spandex, a single elastic yarn that does not contain spandex, or an inelastic yarn. Yarn Y1 is woven in a chain-knit structure, while yarn Y2 is woven in a weft-inserted jacquard structure. Yarns Y1 and Y2 are woven to form the main structure of the fabric body, while yarn Y3 is woven in a variable weft-inserted or variable loop structure to form the pattern. The fabric of the present invention has excellent elasticity in both the warp and weft directions and does not suffer from the spandex yellowing phenomenon of traditional elastic fabrics. The fabric is made of a single material and is easy and quick to recycle, significantly improving recycling efficiency and reducing recycling costs.

Description

Technical Field

[0001] The invention relates to a lace fabric, in particular to a recyclable four-way stretch lace fabric with enhanced 3D effect and a preparation method thereof. Background Art

[0002] To ensure the stretchability of traditional lace fabrics, especially those with four-sided stretch, one or more strands of spandex are often added during production to aid in fabric retraction. However, the addition of spandex can lead to yellowing of the finished fabric, and the fabric must be heat-set at high temperatures (generally between 190°C and 200°C) to maintain dimensional stability. High-temperature production, as is well known, disrupts the surrounding atmosphere and increases production costs due to the energy and time required to heat the fabric. Furthermore, because the fabric contains at least two components, recycling can be challenging, significantly reducing efficiency and increasing costs. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a recyclable four-way stretch lace fabric with enhanced 3D effect and a preparation method thereof.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A recyclable four-way stretch lace fabric with an enhanced 3D effect includes a fabric body, on which a pattern is woven. The fabric body is woven with three yarns, namely, yarn Y1, yarn Y2, and yarn Y3. Yarns Y1 and Y2 are elastic composite yarns made of the same material and do not contain spandex. Yarn Y3 is made of the same material as yarn Y1 and yarn Y2 and is an elastic composite yarn not containing spandex, a single elastic yarn not containing spandex, or a non-elastic yarn. Yarn Y1 is woven in a chain-knit structure, and yarn Y2 is woven in a weft-inserted jacquard structure. Yarn Y1 and yarn Y2 are woven to form the main structure of the fabric body, and yarn Y3 is woven in a variable weft-inserted or variable loop structure to form the pattern.

[0006] The spandex-free elastic composite yarn is composed of two fibers with different thermal shrinkage rates. The spandex-free elastic composite yarn is fluffy and randomly curled in its initial form, but shrinks by 25%-40% and produces additional curls after being dyed and finished at a temperature not exceeding 180°C.

[0007] The yarn Y1 is threaded onto a looping comb to form an open or closed chain structure, and the linear density of the yarn Y1 is between 20-150D.

[0008] The yarn Y2 is threaded on a jacquard bar to form a multi-needle variable weft insertion structure, the basic structure of which is 0-0 / 2-2 / / , the maximum number of lateral shifts of a single needle is 5 needles, and the linear density of Y2 is between 20-280D.

[0009] When the yarn Y3 is passed through the pattern yarn combing bar group to change into a loop structure, the basic structure is 1-0 / 1-2 / / , and the maximum number of lateral shifts of a single needle is 12 needles.

[0010] When the yarn Y3 has a variable weft insertion structure, the linear density is between 20-840D.

[0011] When the Y3 is threaded onto the pattern yarn combing bar group and changes into a loop structure, the basic structure is 1-0 / 1-2 / / , and the maximum number of lateral shift needles of a single needle is 12 needles.

[0012] When the yarn Y3 changes into a loop structure, the linear density is between 20-420D.

[0013] A method for preparing a recyclable four-way stretch lace fabric with enhanced 3D effect is characterized in that the fabric body undergoes a shaping process during the preparation process, including predetermined shaping and post-shaping, the predetermined shaping temperature is between 140°C and 170°C, and the post-shaping temperature is between 110°C and 130°C.

[0014] The invention has good elasticity in the warp and weft directions and does not suffer from the yellowing phenomenon of spandex found in traditional elastic fabrics. The material is single and recycling is convenient and quick, which can greatly improve recycling efficiency and reduce recycling costs. The 3D effect of the fabric is enhanced, making the three-dimensional sense of the pattern better. The dyeing and finishing temperature during the production process does not exceed 180°C, thus achieving energy conservation, consumption reduction and emission reduction. The invention can be widely used in underwear, sportswear and other clothing fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Attachment Figure 1 Schematic diagram of the organizational structure of the present invention;

[0016] Attachment Figure 2 Schematic diagram of the initial form of the composite yarn in the present invention;

[0017] Attachment Figure 3 This is a schematic diagram of the composite yarn after being heated in the present invention;

[0018] Attachment Figure 4 Schematic diagram for comparing the protrusion effects of the present invention. DETAILED DESCRIPTION

[0019] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] As attached Figure 1-4As shown, the present invention discloses a recyclable four-way stretch lace fabric with enhanced 3D effect, including a fabric body, on which a pattern is woven. The fabric body is woven with three yarns, namely yarn Y1, yarn Y2, and yarn Y3. Yarn Y1 and yarn Y2 are elastic composite yarns of the same material and do not contain spandex. Yarn Y3 is made of the same material as yarn Y1 and yarn Y2, and is an elastic composite yarn without spandex, a single elastic yarn without spandex, or a non-elastic yarn. Yarn Y1 is woven in a chain-knit structure, and yarn Y2 is woven in a weft-inserted jacquard structure. Yarn Y1 and yarn Y2 are woven to form the main structure of the fabric body, and yarn Y3 is woven in a variable weft-inserted or variable loop structure to form the pattern.

[0021] The elastic composite yarn without spandex is composed of two fibers with different thermal shrinkage rates. The elastic composite yarn without spandex is fluffy, loose and curly in its initial form. Figure 2 However, after being subjected to dyeing and finishing treatments at temperatures not exceeding 180°C, it will shrink by 25%-40% and produce additional curls, as shown in the attached Figure 3 As shown, the tensile and retraction properties of the textured yarn are significantly better than those of a single thermal shrinkage rate.

[0022] The yarn Y1 is threaded onto a looping comb to form an open or closed chain structure, and the linear density of the yarn Y1 is between 20-150D.

[0023] The yarn Y2 is threaded on a jacquard bar to form a multi-needle variable weft insertion structure, the basic structure of which is 0-0 / 2-2 / / , the maximum number of lateral shifts of a single needle is 5 needles, and the linear density of Y2 is between 20-280D.

[0024] When the yarn Y3 is passed through the pattern yarn combing bar group to change into a loop structure, the basic structure is 1-0 / 1-2 / / , and the maximum number of lateral shifts of a single needle is 12 needles.

[0025] When the yarn Y3 has a variable weft insertion structure, the linear density is between 20-840D.

[0026] When the Y3 is threaded onto the pattern yarn combing bar group and changes into a loop structure, the basic structure is 1-0 / 1-2 / / , and the maximum number of lateral shift needles of a single needle is 12 needles.

[0027] When the yarn Y3 changes into a loop structure, the linear density is between 20-420D.

[0028] A preparation method of a four-way stretch lace fabric with enhanced 3D effect and recyclability, characterized in that the fabric body is processed through a shaping process during preparation, including pre-setting and post-shaping. The pre-setting temperature is between 140°C and 170°C, and the post-shaping temperature is between 110°C and 130°C, which is significantly lower than the temperatures used for traditional lace fabrics (the pre-setting temperature is between 185°C and 200°C, and the post-shaping temperature is between 150°C and 170°C). This not only saves the energy required for heating, reduces production costs, but also reduces high-temperature radiation, having a good environmental protection effect.

[0029] The prepared fabric body is tested according to the LTD03 tensile test standard, and the opening degrees in the warp and weft directions of the fabric are not less than 90%. Since the fabric body does not contain spandex, there is no risk of spandex yellowing.

[0030] As shown in this appendix Figure 4 Let AB be the flower pattern width before shaping, H be the flower pattern height before shaping, L be the arc length of the flower yarn before shaping (i.e., the extension line length), AB1 be the flower pattern width of the fabric after shaping, H1 be the flower pattern height of the fabric after shaping, L1 be the arc length of the flower yarn of the fabric after shaping (i.e., the extension line length), AB2 be the flower pattern width of the traditional lace fabric after shaping, H2 be the flower pattern height of the traditional lace fabric after shaping, and L2 be the arc length of the flower yarn of the traditional lace fabric after shaping (i.e., the extension line length); when L = L1 = L2 and AB1 < AB < AB2, the change in the flower pattern height is H1 > H > H2, that is, the three-dimensional convex effect of the fabric flower pattern is better than that of the traditional lace fabric.

[0031] It should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A recyclable four-way stretch lace fabric with enhanced 3D effect, comprising a fabric body, characterized in that: The fabric body is woven with a pattern. The fabric body is woven with three yarns, yarn Y1, yarn Y2, and yarn Y3. Yarns Y1 and Y2 are elastic composite yarns made of the same material and do not contain spandex. Yarn Y3 is made of the same material as yarn Y1 and yarn Y2 and is an elastic composite yarn that does not contain spandex, a single elastic yarn that does not contain spandex, or a non-elastic yarn. Yarn Y1 is woven in a chain-knit structure, and yarn Y2 is woven in a weft-inserted jacquard structure. Yarn Y1 and yarn Y2 are woven to form the main structure of the fabric body, and yarn Y3 is woven in a variable weft-inserted or variable loop structure to form the pattern. The elastic composite yarn that does not contain spandex is composed of two fibers with different thermal shrinkage rates. The elastic composite yarn that does not contain spandex is fluffy and randomly curled in its initial form, but will shrink by 25%-40% and produce additional curl after being dyed and finished at a temperature not exceeding 180°C. The linear density of yarn Y1 is between 20-150D.

2. The recyclable four-way stretch lace fabric with enhanced 3D effect according to claim 1, characterized in that: The yarn Y1 is threaded onto a looping comb to form an open or closed chain structure.

3. The recyclable four-way stretch lace fabric with enhanced 3D effect according to claim 2, characterized in that: The yarn Y2 is threaded on a jacquard bar to form a multi-needle variable weft insertion structure, the basic structure of which is 0-0 / 2-2 / / , the maximum number of lateral shifts of a single needle is 5 needles, and the linear density of Y2 is between 20-280D.

4. The recyclable four-way stretch lace fabric with enhanced 3D effect according to claim 1, characterized in that: When the yarn Y3 has a variable weft insertion structure, the linear density is between 20-840D.

5. The recyclable four-way stretch lace fabric with enhanced 3D effect according to claim 1, characterized in that: When the Y3 is threaded onto the pattern yarn combing bar group and changes into a loop structure, the basic structure is 1-0 / 1-2 / / , and the maximum number of lateral shift needles of a single needle is 12 needles.

6. The recyclable four-way stretch lace fabric with enhanced 3D effect according to claim 5, characterized in that: When the yarn Y3 changes into a loop structure, the linear density is between 20-420D.

7. A method for preparing a recyclable four-way stretch lace fabric with enhanced 3D effect according to any one of claims 1 to 6, characterized in that: The fabric body undergoes a shaping process during the preparation process, including pre-shaping and post-shaping. The pre-shaping temperature is between 140°C and 170°C, and the post-shaping temperature is between 110°C and 130°C.

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