Regenerated hot-melt non-woven fabric

Abstract

The utility model discloses a regenerated hot melt non-woven fabric which comprises a regenerated coarse denier polyester fiber composite layer, a flash evaporation method regenerated polyethylene non-woven fabric layer, a regenerated cellulose fiber layer 3 and a fine denier regenerated polyester fiber layer which are compounded with one another, the regenerated coarse denier polyester fiber composite layer comprises at least two regenerated coarse denier polyester fiber layers and a hot melting fiber layer clamped between the two adjacent regenerated coarse denier polyester fiber layers, and the hot melting fiber layer is provided with a first protruding part extending into the regenerated coarse denier polyester fiber layers. The regenerated coarse denier polyester fiber layer is provided with a second protruding part extending to the hot melting fiber layer. According to the regenerated hot-melt non-woven fabric, all the layers are made of regenerated materials, and the requirement of people for environmental protection is met. And the regenerated polyester fibers with different finenesses are used on the two sides, so that different stains can be wiped, and different wiping effects are achieved. The polyethylene non-woven fabric layer regenerated through the flash evaporation method has water pressure resistance, and can prevent water from being conducted on the two sides of the polyethylene non-woven fabric layer.

Description

Technical Field

[0001] The utility model relates to a regenerated hot-melt nonwoven fabric, belonging to the technical field of hot-melt nonwoven fabrics. Background Art

[0002] With the rapid development of society and the improvement of people's living standards, the per capita fiber consumption continues to increase. Polyester fiber, as the most widely used chemical synthetic fiber, is prepared by refining petroleum. Since petroleum is a non-renewable resource. And now with the large-scale use of polyester packaging bottles, the waste generated is difficult to degrade, causing serious pollution to the environment. And now the recycled polyester fiber prepared from polyester packaging bottles also has a large number of applications.

[0003] Non-woven fabrics are also called non-woven fabrics, non-woven fabrics, and non-woven fabrics. They have a fluffy effect. According to their reinforcement methods, they are divided into spunlace non-woven fabrics, needle-punched non-woven fabrics, chemically bonded non-woven fabrics, and thermally bonded non-woven fabrics. Thermally bonded non-woven fabrics use the melting properties of high molecular polymer raw materials to bond fiber webs, replacing chemical bonding. Chemical adhesives are not used, and they are more hygienic and safe. Hot-melt non-woven fabrics are a type of thermally bonded non-woven fabrics. They are made by bonding fiber webs with hot-melt fibers and have good fluffy properties.

[0004] Non-woven fabrics are commonly used raw materials for wiping materials. It is necessary to use the fluffy and more hygienic characteristics of recycled hot-melt non-woven fabrics to prepare wiping materials with good moisture absorption. However, when wiping different stains, wiping materials need to be replaced with wiping cloths with different properties. How to prepare a recycled hot-melt non-woven fabric that can have different wiping effects on both sides has become a problem to be solved. Utility Model Content

[0005] The utility model aims to provide a regenerated hot-melt nonwoven fabric with regenerated polyester fibers of different fineness on both sides, so that it has different wiping effects.

[0006] In order to solve the above technical problems, the purpose of the utility model is achieved as follows:

[0007] The utility model relates to a regenerated hot-melt nonwoven fabric, comprising a composite regenerated coarse-denier polyester fiber layer, a flash-steamed regenerated polyethylene nonwoven fabric layer, a regenerated cellulose fiber layer 3 and a fine-denier regenerated polyester fiber layer;

[0008] The regenerated coarse denier polyester fiber composite layer includes at least two layers of regenerated coarse denier polyester fiber layers and a heat-melt fiber layer sandwiched between two adjacent layers of regenerated coarse denier polyester fiber layers, and the heat-melt fiber layer is provided with a first protrusion extending inside the regenerated coarse denier polyester fiber layer, and the regenerated coarse denier polyester fiber layer is provided with a second protrusion extending to the heat-melt fiber layer.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the polyester fiber in the regenerated coarse denier polyester fiber layer is a regenerated polyester fiber with a fineness of 3-5D and a length of 38-51mm.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: the polyester fiber in the fine denier regenerated polyester fiber layer is a regenerated polyester fiber with a fineness of 0.5-1.5D and a length of 38-51mm.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: the hot-melt fiber used in the hot-melt fiber layer is CoPET / PET composite fiber with a length of 38-51 mm.

[0012] On the basis of the above scheme and as a preferred scheme of the above scheme: a nylon mesh cloth is arranged between the regenerated cellulose fiber layer and the fine denier regenerated polyester fiber layer, and the nylon mesh cloth is woven from regenerated nylon filaments.

[0013] The utility model has the following beneficial effects: the recycled hot-melt nonwoven fabric of the utility model uses recycled materials in each layer, which meets people's requirements for environmental protection. The recycled polyester fibers of different finenesses used on both sides can wipe different stains and achieve different wiping effects. The polyethylene nonwoven fabric layer recycled by the flash steaming method has water pressure resistance and can prevent water from being conducted on both sides. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the recycled hot-melt nonwoven fabric involved in Example 1;

[0015] Figure 2 1 is a schematic diagram of the structure of the regenerated coarse denier polyester fiber composite layer involved in Example 1;

[0016] Figure 3 is a schematic structural diagram of the regenerated hot-melt nonwoven fabric involved in Example 2;

[0017] Figure 4 It is a schematic structural diagram of the regenerated coarse denier polyester fiber composite layer involved in the second embodiment.

[0018] The markings in the figure are as follows: 1-regenerated coarse denier polyester fiber composite layer; 2-flash steamed regenerated polyethylene non-woven fabric layer; 3-regenerated cellulose fiber layer; 4-fine denier regenerated polyester fiber layer; 5-nylon mesh cloth; 11-regenerated coarse denier polyester fiber layer; 12-hot-melt fiber layer; 13-first protrusion; 14-second protrusion. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] Embodiment 1

[0021] Combination Figure 1 and Figure 2 , this embodiment is described in detail. The regenerated hot-melt nonwoven fabric involved in this embodiment includes a regenerated coarse denier polyester fiber composite layer 1 compounded by hot melt adhesive, a flash-steamed regenerated polyethylene nonwoven fabric layer 2, a regenerated cellulose fiber layer 3 and a fine denier regenerated polyester fiber layer 4. The coarse denier fiber used in the regenerated coarse denier polyester fiber composite layer 1 can enable the layer to remove stubborn stains, while the fine denier regenerated polyester fiber layer 4 can wipe other stains. The regenerated cellulose fiber layer 3 has good moisture absorption properties and can absorb moisture when the fine denier regenerated polyester fiber layer 4 is wiped.

[0022] The regenerated coarse denier polyester fiber composite layer 1 includes at least two layers of regenerated coarse denier polyester fiber layers 11 and a heat-melt fiber layer 12 sandwiched between two adjacent layers of regenerated coarse denier polyester fiber layers 11, and the heat-melt fiber layer 12 is provided with a first protrusion 13 extending inside the regenerated coarse denier polyester fiber layer 11, and the regenerated coarse denier polyester fiber layer 11 is provided with a second protrusion 14 extending to the heat-melt fiber layer 12.

[0023] In this embodiment, two layers of recycled coarse denier polyester fiber layer 11 and heat-fusible fiber layer 12 are stacked in a sandwich structure and then needle-punched, so that part of the heat-fusible fibers in the heat-fusible fiber layer 12 are pierced into the recycled coarse denier polyester fiber layer 11 to form a first protrusion 13. Also, part of the polyester fibers in the recycled coarse denier polyester fiber layer 11 are also pierced into the heat-fusible fiber layer 12 to form a second protrusion 14. After heat treatment, the recycled coarse denier polyester fiber composite layer 1 is reinforced.

[0024] Furthermore, the regenerated cellulose fiber layer 3 and the fine-denier regenerated polyester fiber layer 4 are obtained by overlapping a regenerated vitamin fiber web and a fine-denier polyester fiber web and then spunlacing them.

[0025] Furthermore, the polyester fibers in the regenerated coarse denier polyester fiber layer 11 are regenerated polyester fibers, with a fineness of 3-5D and a length of 38-51 mm; in this embodiment, 3D and 38 mm are selected. The polyester fibers in the fine denier regenerated polyester fiber layer 4 are regenerated polyester fibers, with a fineness of 0.5-1.5D and a length of 38-51 mm; in this embodiment, 1.1D and a length of 38 mm are selected.

[0026] Furthermore, the hot-melt fiber used in the hot-melt fiber layer 12 is a CoPET / PET composite fiber with a length of 38-51 mm. The CoPET / PET composite fiber is a core-skin structure formed by placing CoPET on the outside of PET. CoPET has a lower melting point than PET, and when heated, CoPET melts first, so that it bonds with adjacent fibers, thereby reinforcing the fiber web.

[0027] Embodiment 2

[0028] Combination Figure 3 and Figure 4 , this embodiment is described in detail. The regenerated hot-melt nonwoven fabric involved in this embodiment is different from the first embodiment in that a nylon mesh cloth 5 is arranged between the regenerated cellulose fiber layer 3 and the fine-denier regenerated polyester fiber layer 4, and the nylon mesh cloth is woven from regenerated nylon filaments. The nylon mesh cloth can improve the wiping effect and strength of the regenerated hot-melt nonwoven fabric.

[0029] Another difference between the recycled hot-melt nonwoven fabric involved in this embodiment and the first embodiment is that in this embodiment, three layers of recycled coarse-denier polyester fiber layers 11 and two layers of hot-melt fiber layers 12 are provided.

[0030] 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 recycled hot-melt nonwoven fabric, characterized in that: It comprises a composite regenerated coarse-denier polyester fiber layer (1), a flash-steamed regenerated polyethylene non-woven fabric layer (2), a regenerated cellulose fiber layer (3) and a fine-denier regenerated polyester fiber layer (4); The regenerated coarse denier polyester fiber composite layer (1) comprises at least two layers of regenerated coarse denier polyester fiber layers (11) and a heat-fusible fiber layer (12) sandwiched between two adjacent layers of regenerated coarse denier polyester fiber layers (11), wherein the heat-fusible fiber layer (12) is provided with a first protrusion (13) extending inside the regenerated coarse denier polyester fiber layer (11), and the regenerated coarse denier polyester fiber layer (11) is provided with a second protrusion (14) extending to the heat-fusible fiber layer (12).

2. The recycled hot-melt nonwoven fabric according to claim 1, characterized in that: The polyester fibers in the regenerated coarse denier polyester fiber layer (11) are regenerated polyester fibers with a fineness of 3-5D and a length of 38-51 mm.

3. The recycled hot-melt nonwoven fabric according to claim 1, characterized in that: The polyester fibers in the fine denier regenerated polyester fiber layer (4) are regenerated polyester fibers with a fineness of 0.5-1.5D and a length of 38-51mm.

4. The recycled hot-melt nonwoven fabric according to claim 1, characterized in that: The heat-fusible fiber used in the heat-fusible fiber layer (12) is CoPET / PET composite fiber with a length of 38-51 mm.

5. The recycled hot-melt nonwoven fabric according to claim 1, characterized in that: A nylon mesh cloth (5) is arranged between the regenerated cellulose fiber layer (3) and the fine-denier regenerated polyester fiber layer (4), and the nylon mesh cloth is woven from regenerated nylon filaments.

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