Ammonia-free elastic webbing

Abstract

The utility model discloses an ammonia-free elastic fabric belt which is interwoven by warp yarn and weft yarn by using a fabric belt machine; the warp yarn comprises ammonia-free elastic filament; the weft yarn is first chemical fiber filament; the ammonia-free elastic filament and the first chemical fiber filament have the same component. The ammonia-free elastic fabric belt has ammonia-free elastic filament with elasticity in the warp yarn, avoids the use of spandex filament, and uses the same component for the ammonia-free elastic filament and the weft yarn used in the whole elastic fabric belt, so that other components need not be considered during recycling, the ammonia-free elastic filament can be used as raw material of regenerated chemical fiber filament, and the recycling efficiency and economic benefits are improved.

Description

Technical Field

[0001] This utility model relates to an ammonia-free elastic webbing, belonging to the field of elastic webbing technology. Background Technology

[0002] Polyester fiber, commonly known as polyester fiber, is a synthetic fiber produced by the chemical polycondensation of a diacid and a diol, belonging to the category of polymer compounds. The manufacturing process of polyester fiber includes two parts: polyester melt synthesis and melt spinning. The raw materials for polyester melt synthesis are polyethylene terephthalate (PET) and ethylene glycol, which are mainly derived from petroleum, coal, and natural gas. Petroleum, coal, and natural gas are all non-renewable resources. With increasing environmental protection requirements, fabrics are also required to be recyclable. Webbing, as a commonly used raw material in clothing, also requires recyclability. Webbing typically has a certain degree of elasticity, usually achieved using spandex. In most webbing made from polyester fibers, the presence of spandex filaments necessitates the removal of spandex during recycling. Furthermore, spandex is usually encased within the polyester yarn, making it difficult to remove. This prevents elastic webbing from being used as raw material for recycled synthetic fiber filaments, limiting its application to the manufacture of plastic parts. Therefore, the problem to be solved is how to develop an ammonia-free elastic webbing that facilitates the recycling of raw materials used in the production of recycled synthetic fiber filaments. Utility Model Content

[0003] The purpose of this invention is to provide an ammonia-free elastic webbing, which uses ammonia-free elastic yarn, reducing the difficulty of recycling.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows: The present invention relates to an ammonia-free elastic webbing, which is woven from warp and weft yarns using a webbing machine; the warp yarns include ammonia-free elastic filaments; the weft yarns are first chemical fiber filaments; the ammonia-free elastic filaments and the first chemical fiber filaments have the same composition.

[0005] Based on the above scheme and as a preferred embodiment of the above scheme: the warp yarn is a first ammonia-free elastic core-spun yarn, the first ammonia-free elastic core-spun yarn includes an ammonia-free elastic filament and a second chemical fiber filament wrapped around the outside of the ammonia-free elastic filament; the first chemical fiber filament and the second chemical fiber filament have the same composition.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the first chemical fiber filament, the second chemical fiber filament, and the ammonia-free elastic filament are polyester filaments or polyamide filaments.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the warp yarns include surface warp yarns, inner warp yarns and connecting warp yarns, and the weft yarns include surface weft yarns and inner weft yarns; the surface warp yarns and surface weft yarns interweave to form the surface layer, the inner warp yarns and inner weft yarns interweave to form the inner layer, and the connecting warp yarns are used to connect the surface layer and the inner layer. The outer warp yarns include a second ammonia-free elastic core-spun yarn; the inner warp yarns include a first ammonia-free elastic core-spun yarn; the knotting yarn is a second ammonia-free elastic core-spun yarn. The second ammonia-free elastic core-spun yarn includes a second core yarn and a covering fiber layer; the second core yarn is an ammonia-free elastic filament, and the covering fiber layer is a hydrophilic chemical fiber; The hydrophilic synthetic fiber and the elastic filament have the same composition.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the outer warp yarn further includes a third chemical fiber filament arranged alternately with the second ammonia-free elastic core-spun yarn; the inner warp yarn further includes a fourth chemical fiber filament arranged alternately with the first ammonia-free elastic core-spun yarn; the F number of the third chemical fiber filament is greater than the F number of the fourth chemical fiber filament, and the fineness of the single filament in the third chemical fiber filament is less than the fineness of the single filament in the fourth chemical fiber filament; The third and fourth chemical fiber filaments have the same composition as the hydrophilic chemical fiber.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the fineness of the third chemical fiber filament is 72D / 144-288F; the fineness of the fourth chemical fiber filament is 50D / 24F.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the cross-section of the monofilament in the fourth chemical fiber filament is cross-shaped or Y-shaped.

[0011] The beneficial effects of this utility model are: the ammonia-free elastic webbing involved in this utility model has elastic ammonia-free elastic filaments in the warp yarns, which avoids the use of spandex filaments. Furthermore, the ammonia-free elastic filaments and weft yarns used in the entire elastic webbing use the same composition. When recycling, there is no need to consider other components. It can be used as raw material for recycled chemical fiber filaments, thereby improving recycling efficiency and economic benefits. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the ammonia-free elastic webbing involved in Example 3.

[0013] The markings in the diagram are explained as follows: 1 - surface layer; 2 - inner layer. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] Example 1 Combination Figure 1 This embodiment will be described in detail below. The ammonia-free elastic webbing involved in this embodiment is woven from warp and weft yarns using a weaving machine; the warp yarns include ammonia-free elastic filaments; the weft yarns are first chemical fiber filaments; the ammonia-free elastic filaments and the first chemical fiber filaments have the same composition. That is, the warp yarns used are ammonia-free elastic filaments.

[0016] Furthermore, the first chemical fiber filament and the ammonia-free elastic filament are polyester filaments or polyamide filaments. In this embodiment, polyester filaments are selected, specifically elastic polyester filaments. Specifically, the elastic polyester filament is a T400 fiber filament with a fineness of 75D. T400 filament is made by composite spinning of two different polyesters (such as PET and PTT), combining high elasticity and comfort, and is widely used in the textile industry. It possesses excellent bidirectional elasticity (transverse and longitudinal), can quickly recover its original shape after stretching, has strong wrinkle resistance, a dense fiber structure, low shrinkage rate under humid and hot conditions (typically <5%), and maintains good shape retention after washing, reducing the risk of deformation.

[0017] The first chemical fiber filament used is polyester DTY filament with a fineness range of 50D-300D. In this embodiment, 75D is selected.

[0018] In this embodiment, both the warp and weft yarns are made of polyester filaments, which can be used as raw materials for recycled polyester filaments in the subsequent recycling process.

[0019] Example 2 The ammonia-free elastic webbing involved in this embodiment differs from that in Embodiment 1 in that: the warp yarn is a first ammonia-free elastic core-spun yarn, which includes an ammonia-free elastic filament and a second chemical fiber filament wrapped around the outside of the ammonia-free elastic filament; the first and second chemical fiber filaments have the same composition. The second chemical fiber filament is 40D polyester DTY filament. Furthermore, in this embodiment, the first core yarn has a twist of 600-800 twists per meter, specifically 600 twists per meter in this embodiment. In this embodiment, the warp density is 14 threads per centimeter, and the weft density is 12 threads per fabric.

[0020] Example 3 The ammonia-free elastic webbing described in this embodiment differs from that in Embodiment 1 in that: the warp yarns include surface warp yarns, inner warp yarns, and connecting warp yarns; the weft yarns include surface weft yarns and inner weft yarns; the surface warp yarns and surface weft yarns interweave to form surface layer 1, and the inner warp yarns and inner weft yarns interweave to form inner layer 2; the connecting warp yarns are used to connect surface layer 1 and inner layer 2. The surface warp yarns, inner warp yarns, and connecting warp yarns are arranged in a 1:1:1 sequence. The surface weft yarns and surface warp yarns are inserted in a 1:1 sequence.

[0021] The outer warp yarn includes a second ammonia-free elastic core-spun yarn; the inner warp yarn includes a first ammonia-free elastic core-spun yarn; and the bonding yarn is a second ammonia-free elastic core-spun yarn. The second ammonia-free elastic core-spun yarn includes a second core yarn and a covering fiber layer; the second core yarn is an ammonia-free elastic filament, and the covering fiber layer is a hydrophilic fiber. The elastic filament used has a fineness of 75D, and the second non-elastic core-spun yarn has a fineness of 40 count. The hydrophilic fiber has the same composition as the elastic filament. Specifically, it is polyester, and the hydrophilic fiber is a hydrophilic polyester fiber.

[0022] Example 4 The ammonia-free elastic webbing described in this embodiment differs from Embodiment 3 in that: the outer warp yarns further include third chemical fiber filaments arranged alternately with the second ammonia-free elastic core-spun yarn, specifically in a 1:1 ratio. The inner warp yarns also include fourth chemical fiber filaments arranged alternately with the first ammonia-free elastic core-spun yarn, specifically in a 1:1 ratio. The fractional fiber (F) of the third chemical fiber filament is greater than that of the fourth polyester filament, and the fineness of the individual filaments in the third chemical fiber filament is less than that in the individual filaments of the fourth polyester filament.

[0023] Specifically, the fineness of the third chemical fiber filament is 72D / 144-288F, specifically 75D / 288F; the fineness of the fourth chemical fiber filament is 50D / 24F. The cross-section of the monofilament in the fourth chemical fiber filament is cross-shaped or Y-shaped. Monofilaments of different fineness have different wicking effects. The fineness of the third chemical fiber filament reaches the ultra-fine range, exhibiting a superior wicking effect compared to the fourth chemical fiber filament. This allows sweat to be guided from the fourth polyester filament to the third chemical fiber filament, thus forming a one-way moisture wicking effect. The third and fourth chemical fiber filaments have the same composition as the hydrophilic chemical fiber. In this initial embodiment, polyester fiber is selected.

[0024] The polyester material in Examples 1 to 4 can also be replaced with polyamide material, specifically nylon 6. The webbing prepared in the above examples is all made of the same material, which can be used to prepare recycled chemical fiber filaments when recycled and reused, embodying the concept of recycling and environmental protection, and thus saving resources.

[0025] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. An ammonia-free elastic webbing characterized in that, It is made by interlacing warp and weft yarns using a weaving machine; the warp yarns include ammonia-free elastic filaments; the weft yarns are first chemical fiber filaments; the ammonia-free elastic filaments have the same composition as the first chemical fiber filaments; the ammonia-free elastic filaments are polyester filaments or polyamide filaments.

2. An ammonia-free elastic webbing according to claim 1, wherein The warp yarn is a first ammonia-free elastic core-spun yarn, which includes an ammonia-free elastic filament and a second chemical fiber filament wrapped around the outside of the ammonia-free elastic filament; the first chemical fiber filament and the second chemical fiber filament have the same composition.

3. An ammonia-free elastic webbing according to claim 2, wherein The first and second chemical fiber filaments are polyester filaments or polyamide filaments.

4. The ammonia-free elastic web of claim 2, wherein, The warp yarns include surface warp yarns, inner warp yarns, and connecting warp yarns; the weft yarns include surface weft yarns and inner weft yarns; the surface warp yarns and surface weft yarns interweave to form the surface layer; the inner warp yarns and inner weft yarns interweave to form the inner layer; and the connecting warp yarns are used to connect the surface layer and the inner layer. The outer warp yarns include a second ammonia-free elastic core-spun yarn; the inner warp yarns include a first ammonia-free elastic core-spun yarn; the knotting warp yarns are a second ammonia-free elastic core-spun yarn. The second ammonia-free elastic core-spun yarn includes a second core yarn and a covering fiber layer; the second core yarn is an ammonia-free elastic filament, and the covering fiber layer is a hydrophilic chemical fiber; The hydrophilic synthetic fiber and the elastic filament have the same composition.

5. An ammonia-free elastic webbing according to claim 4, wherein The outer warp yarn also includes a third chemical fiber filament arranged alternately with the second ammonia-free elastic core-spun yarn; the inner warp yarn also includes a fourth chemical fiber filament arranged alternately with the first ammonia-free elastic core-spun yarn; the F number of the third chemical fiber filament is greater than the F number of the fourth chemical fiber filament and the fineness of the monofilaments contained in the third chemical fiber filament is less than the fineness of the monofilaments contained in the fourth chemical fiber filament. The third and fourth chemical fiber filaments have the same composition as the hydrophilic chemical fiber.

6. An ammonia-free elastic webbing according to claim 5, wherein The fineness of the third chemical fiber filament is 72D / 144-288F; the fineness of the fourth chemical fiber filament is 50D / 24F.

7. An ammonia-free elastic webbing according to claim 5, wherein The fourth chemical fiber filament contains monofilaments with a cross-shaped or Y-shaped cross section.

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