Regenerated high-fluffiness high-strength DTY filament

Abstract

The utility model discloses a regenerated high-fluffiness high-strength DTY (draw textured yarn) filament which comprises a core yarn, a covering fiber layer and a wrapping yarn layer, the core yarn comprises regenerated polyester POY filaments and fine denier polyester high-strength filaments which are doubled and twisted, and the covering fiber layer comprises regenerated polyester staple fiber roving and PVA fiber roving which are spirally wound on the outer side of the core yarn; and the wrapping yarn layer comprises polyester different-section different-twist DTY (Draw Textured Yarn). According to the regenerated high-fluffiness high-strength DTY filament, the fine denier polyester high-strength filament is adopted in the core yarn, so that the strength can be effectively improved. PVA fiber roving is used in the wrapping fiber layer, and the PVA fiber roving can be removed in hot water by utilizing the characteristics of PVA, so that the bulkiness is increased. And the wrapping yarns adopt the polyester different-section different-twist DTY yarns, so that the wrapping yarns have a moisture guiding effect and fluffiness.

Description

Technical Field

[0001] The utility model relates to a regenerated high-fluff and high-strength DTY filament, belonging to the technical field of regenerated chemical fiber filaments. Background Art

[0002] As people's living standards improve, their requirements for clothing are getting higher and higher, and they have higher requirements for the comfort and softness of clothing. And as people pay more and more attention to the concept of environmental protection, they pay more and more attention to recycled polyester filaments. Clothing fabrics prepared from high-loft DTY filaments have good fluffiness and soft feel, and are especially suitable for fabrics used in autumn and winter clothing. However, the strength of high-loft DTY filaments is poor, with a breaking strength between 2.8-4.0cN / dtex, which is less than the index of high-strength yarn, and it is easy to cause pilling and wear and tear of clothing fabrics. How to prepare a regenerated high-loft and high-strength DTY filament has become a problem to be solved. Utility Model Content

[0003] The utility model aims to provide a regenerated high-fluff and high-strength DTY filament, which has high strength and good fluffiness.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows:

[0005] The utility model relates to a regenerated high-fluff and high-strength DTY filament, comprising a core yarn, a covering fiber layer and a wrapping silk layer;

[0006] The core yarn includes regenerated polyester POY filaments and fine denier polyester high-strength filaments twisted in parallel, the covering fiber layer includes regenerated polyester staple fiber roving and PVA fiber roving spirally wound on the outside of the core yarn; the wrapping yarn layer includes polyester DTY yarns with different cross-sections and different twists.

[0007] On the basis of the above scheme and as a preferred scheme of the above scheme: the cross-section of the polyester DTY yarn with different cross-section and twist is in the shape of a straight line, a Y shape, a cross shape, an I shape, a C shape or a multi-leaf shape.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the polyester DTY yarn with different cross-section and different twist includes a fluffy section and a tightly twisted section, the single filaments in the fluffy section are separated and curled and fluffy, the tightly twisted section has a twist of 300-400T / m, and the single fibers are bonded to each other.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the wrapping yarn layer also includes 83dtex / 36f light mesh polyester DTY filaments arranged in parallel with the polyester different-section and different-twist DTY yarns.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the fineness of the fine denier polyester high-strength filament is 200-300D.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: the core yarn 1 also includes regenerated antibacterial polyester DTY filaments.

[0012] The utility model has the following beneficial effects: the regenerated high-loft and high-strength DTY filament of the utility model uses fine-denier polyester high-strength filament in the core yarn to effectively improve the strength. PVA fiber roving is used in the coating fiber layer, and the PVA can be removed in hot water by utilizing its characteristics, thereby increasing the fluffiness. The wrapping yarn uses polyester DTY yarn with different cross-section and twist, which has moisture-conducting effect and fluffiness. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the cross-sectional structure of the regenerated high-loft and high-strength DTY filament involved in Example 1.

[0014] The markings in the figure are as follows: 1-core yarn; 2-covering fiber layer; 3-wrapping silk layer. DETAILED DESCRIPTION

[0015] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0016] Embodiment 1

[0017] Combination Figure 1 The embodiment is described in detail. The embodiment involves a regenerated high-loft and high-strength DTY filament, comprising a core yarn 1, a covering fiber layer 2 and a wrapping yarn layer 3.

[0018] The core yarn 1 includes regenerated polyester POY filaments and fine denier polyester high-strength filaments twisted in parallel, the coating fiber layer 2 includes regenerated polyester staple rovings and PVA fiber rovings spirally wound on the outside of the core yarn 1; the wrapping yarn layer 3 includes polyester DTY yarns with different cross-sections and twists. The use of regenerated polyester POY filaments and regenerated polyester staple rovings can improve environmental protection and better meet the environmental protection concept of modern people. The PVA fiber rovings used can be dissolved in water after being treated with hot water due to the characteristics of PVA fibers, so that the PVA fibers can be removed, leaving cavities, thereby improving the fluffiness.

[0019] Furthermore, the cross section of the polyester DTY yarn with different cross-section and twist is in a straight line, a Y-shape, a cross shape, an I-shape, a C-shape or a multi-leaf shape. In this embodiment, a cross shape is selected, which has a good moisture conduction effect.

[0020] Furthermore, the polyester DTY yarn with different cross-section and twist includes a fluffy section and a tight twist section, in which the single filaments are separated and curled and fluffy, and the tight twist section has a twist of 300-400 T / m, and the single fibers are bonded. The polyester DTY yarn with different cross-section and twist has obvious fluffy sections and tight twist in the longitudinal direction. The coarse and fine details are clearly distinguished, and the fluffy property is good.

[0021] Furthermore, the fineness of the fine denier polyester high-strength filament is 200-300D, and in this embodiment, 200D is selected.

[0022] Embodiment 2

[0023] One difference between the regenerated high-loft and high-strength DTY filaments of this embodiment and the first embodiment is that the wrapping yarn layer 3 also includes 83dtex / 36f light-mesh polyester DTY filaments arranged in parallel with the polyester DTY filaments with different cross-sections and twists, which can further improve the bulkiness.

[0024] Another difference from the first embodiment is that the core yarn 1 further comprises regenerated antibacterial polyester DTY filaments. The regenerated antibacterial polyester DTY filaments can provide the DTY filaments with good antibacterial effects.

[0025] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A regenerated high-loft and high-strength DTY filament, characterized in that: It comprises a core yarn (1), a covering fiber layer (2) and a wrapping silk layer (3); The core yarn (1) comprises regenerated polyester POY filaments and fine denier polyester high-strength filaments twisted in parallel, the covering fiber layer (2) comprises regenerated polyester staple fiber roving and PVA fiber roving spirally wound on the outside of the core yarn (1); the wrapping yarn layer (3) comprises polyester DTY yarns with different cross-sections and twists.

2. The regenerated high-loft and high-strength DTY filament according to claim 1, characterized in that: The cross section of the polyester DTY yarn with different cross-section and twist is in the shape of a straight line, a Y shape, a cross shape, an I shape, a C shape or a multi-leaf shape.

3. The regenerated high-loft and high-strength DTY filament according to claim 1, characterized in that: The polyester DTY yarn with different cross-section and different twist comprises a fluffy section and a tightly twisted section. In the fluffy section, the single filaments are separated and curled and fluffy. In the tightly twisted section, the twist is 300-400 T / m, and the single fibers are bonded.

4. The regenerated high-loft and high-strength DTY filament according to claim 1, characterized in that: The wrapping yarn layer (3) also includes 83dtex / 36f light mesh polyester DTY filaments arranged in parallel with the polyester DTY yarns with different cross-sections and twists.

5. The regenerated high-loft and high-strength DTY filament according to claim 1, characterized in that: The fineness of the fine denier polyester high-strength filament is 200-300D.

6. The regenerated high-loft and high-strength DTY filament according to claim 1, characterized in that: The core yarn (1) also includes regenerated antibacterial polyester DTY filaments.

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