A sofa fabric with anti-fouling and water-repellent properties

Abstract

This utility model discloses a stain-resistant and water-repellent sofa fabric, comprising a composite suede fabric layer, a four-axis warp-knitted fabric layer, and a foamed fabric layer. The suede fabric layer includes a face comb, a middle comb, and a bottom comb. The yarn used in the face comb is ultra-fine polyester multifilament. One side of the face comb of the suede fabric layer has a pile layer formed by napping. One side of the pile layer of the suede fabric layer is coated with a water-based polyurethane coating, and the pile in the pile layer extends into the water-based polyurethane coating. The surface of the water-based polyurethane coating is coated with a three-proof finishing agent. The stain-resistant and water-repellent sofa fabric of this utility model has a three-proof finishing agent on its surface, achieving a water resistance rating of level 4 and an oil resistance rating of level 6. Furthermore, the four-axis warp-knitted fabric used provides good dimensional stability for this sofa fabric.

Description

Technical Field

[0001] This utility model relates to a stain-resistant and water-repellent sofa fabric, belonging to the field of sofa fabric technology. Background Technology

[0002] With the continuous development of society and the economy, and the continuous improvement of people's living standards, people have increasingly higher requirements for their living standards, especially for home textiles such as sofas, curtains, and bedding. Sofa fabric is a general term for the covering materials used in the sofa manufacturing process. According to raw materials, it can be made of cotton, synthetic fibers, genuine leather, etc. Existing sofa fabrics are usually warp-knitted fabrics, which have shortcomings in dimensional stability. Furthermore, when people sit on the sofa to watch TV, they often drink beverages or eat, inevitably spilling water or oil stains onto the sofa fabric. Therefore, how to develop a stain-resistant and water-repellent sofa fabric with good dimensional stability has become a problem to be solved. Utility Model Content

[0003] The purpose of this invention is to provide a stain-resistant and water-repellent sofa fabric with stain-resistant and water-repellent effects.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows:

[0005] The present invention relates to a stain-resistant and water-repellent sofa fabric, comprising a composite suede fabric layer, a four-axis warp-knitted fabric layer, and a foamed fabric layer.

[0006] The suede fabric layer includes a face comb, a middle comb, and a bottom comb. The yarn used for the face comb is ultra-fine polyester multifilament. One side of the face comb of the suede fabric layer has a nap layer formed by napping.

[0007] The suede fabric layer has a water-based polyurethane coating applied to one side of the pile layer, and the pile in the pile layer extends into the water-based polyurethane coating; the surface of the water-based polyurethane coating is coated with a three-proof finishing agent.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the four-axis warp-knitted fabric layer includes a 0° weft layer, a 0° warp layer, a +45° weft layer and a -45° weft layer, which are fixed by binding yarn and arranged sequentially.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the binding yarn is high-strength polyester filament; the yarns used in the 0° weft layer, 0° warp layer, +45° weft layer and -45° weft layer include polyester DTY filament.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: the nylon monofilament used in the middle comb and the polyester DTY filament used in the bottom comb have a diameter of 0.1-0.15mm.

[0011] Based on the above scheme and as a preferred embodiment of the above scheme: the foamed fabric layer includes a TPU foam layer and a spunlace nonwoven fabric layer.

[0012] Based on the above scheme and as a preferred embodiment of the above scheme: the surface of the spunlace nonwoven fabric layer is coated with an antibacterial and anti-mite agent.

[0013] The beneficial effects of this utility model are: the stain-resistant and water-repellent sofa fabric involved in this utility model has a three-proof finishing agent coated on its surface, achieving a waterproof rating of level 4 and an oil stain resistance rating of level 6. Furthermore, the four-axis warp-knitted fabric used provides excellent dimensional stability for this sofa fabric. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the stain-resistant and water-repellent sofa fabric involved in Example 1;

[0015] Figure 2 This is a schematic diagram of the structure of the four-axis warp-knitted fabric layer involved in Example 1.

[0016] The markings in the diagram are explained as follows: 1. Suede fabric layer; 2. Four-axis warp-knitted fabric layer; 3. Foamed fabric layer; 21. 0° weft layer; 21. 0° warp layer; 23. +45° weft layer; 24. -45° weft layer; 4. Fleece layer; 5. Flame-retardant polyurethane layer. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] Example 1

[0019] Combination Figure 1 This embodiment will be described in detail below. The stain-resistant and water-repellent sofa fabric involved in this embodiment includes a composite suede fabric layer 1, a four-axis warp-knitted fabric layer 2, and a foamed fabric layer 3. The composite is achieved using a PUR hot melt adhesive web.

[0020] The suede fabric layer 1 includes a face comb, a middle comb, and a bottom comb. The yarn used for the face comb is ultra-fine polyester multifilament. One side of the face comb of the suede fabric layer 1 has a pile layer 4 formed by napping. The fineness of the ultra-fine polyester multifilament is 72D / 144F-288F, and 72D / 144F is selected in this embodiment. The pile formed by ultra-fine fibers is fine and has a soft feel. One side of the pile layer 4 of the suede fabric layer 1 is coated with a water-based polyurethane coating 5, and the pile in the pile layer 4 extends into the water-based polyurethane coating 5; the pile extends into the interior of the flame-retardant polyurethane coating 5, thereby making the water-based polyurethane coating 5 difficult to peel off.

[0021] Furthermore, the padding yarn number of the face comb is 1-0 / 0-1 / 1-0 / 1-3 / 3-1 / 1-3 / / , and the yarn threading pattern is full threading; the padding yarn number of the middle comb is 0-0 / 1-1 / 0-0 / 3-3 / 2-2 / 3-3 / / , and the yarn threading pattern is full threading; the padding yarn number of the bottom comb is 2-3 / 1-0 / 2-3 / 1-0 / 2-3 / 1-0 / / , and the yarn threading pattern is full threading.

[0022] Furthermore, the nylon monofilament used in the middle comb and the polyester DTY filament used in the bottom comb have a diameter of 0.1-0.15 mm. In this embodiment, the polyester DTY filament has a fineness of 50D / 36F. The prepared suede fabric layer 1 has a weight of 220 grams per square meter.

[0023] The surface of the waterborne polyurethane coating 5 is coated with a three-proof finishing agent. The three-proof finishing agent is sprayed before the waterborne polyurethane coating 5 is completely dry. After drying, the waterborne polyurethane coating cures, and the three-proof finishing agent forms a three-proof finishing layer with a stronger bond to the waterborne polyurethane coating, thus giving the fabric excellent three-proof properties, enabling it to be waterproof, oil-proof, and stain-proof. In this embodiment, the three-proof finishing agent is first dissolved in water at a mass fraction of 20%. It is then sprayed onto the waterborne polyurethane coating 5 at a rate of 10 grams per square meter. Huntsman's PHOBOL three-proof finishing agent can be selected. A waterproof test was conducted using GB / T 4745-2012 as the test standard, and the test result was level 4. Using GB / T 19977 as the test standard, the oil-proof rating test result was level 6.

[0024] Furthermore, the four-axis warp-knitted fabric layer 2 includes a 0° weft layer 21, a 0° warp layer 22, a +45° weft layer 23, and a -45° weft layer 24, which are fixed by binding yarns and arranged sequentially. The binding yarn is high-strength polyester filament; the yarns used in the 0° weft layer 21, 0° warp layer 22, +45° weft layer 23, and -45° weft layer 24 include polyester DTY filament with a fineness of 50D / 24F. The 0° weft layer 21 is adjacent to the suede fabric layer 1.

[0025] Polyester DTY filaments are warped and then woven into a four-axis warp-knitted fabric on a warp knitting machine. First, a 0° weft layer 21 is laid on the worktable of the warp knitting machine at a 90° angle to the worktable. Then, a 0° warp layer 22 is laid on top of the 0° weft layer 21, perpendicular to the yarn direction of the 0° weft layer 21. Next, a +45° weft layer 23 and a -45° weft layer 24 are laid in sequence. High-strength polyester fiber filaments are used as binding yarns, and the four yarn layers are warp-knitted together on the warp knitting machine using a chain weave structure to obtain the grey fabric.

[0026] Furthermore, the foamed fabric layer 3 comprises a TPU foamed layer and a spunlace nonwoven fabric layer laminated together with a hot melt adhesive web. The surface of the spunlace nonwoven fabric layer is coated with an antibacterial and anti-mite agent. The spunlace nonwoven fabric layer used is a flame-retardant polyester spunlace nonwoven fabric.

[0027] Example 2

[0028] The difference between the stain-resistant and water-repellent sofa fabric described in this embodiment and that in Embodiment 1 is that: in the 0° warp layer 22 and the +45° weft layer 23, there is one polyester DTY filament and a core-sheath structure polyester filament. The core-sheath structure polyester filament has a sheath layer and a core layer. The sheath layer is a low-melting-point polyester with a melting point of 80-110℃. The core layer is a conventional polyester with a melting point of 250-255℃.

[0029] 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. A stain-resistant and water-repellent sofa fabric, characterized in that, It includes a composite suede fabric layer (1), a four-axis warp-knitted fabric layer (2), and a foamed fabric layer (3). The suede fabric layer (1) includes a face comb, a middle comb and a bottom comb. The yarn used for the face comb is ultra-fine polyester multifilament. The face comb side of the suede fabric layer (1) has a pile layer (4) formed by napping. A water-based polyurethane coating (5) is applied to one side of the pile layer (4) of the suede fabric layer (1), and the pile in the pile layer (4) extends into the water-based polyurethane coating (5); the surface of the water-based polyurethane coating (5) is coated with a three-proof finishing agent.

2. The stain-resistant and water-repellent sofa fabric according to claim 1, characterized in that, The four-axis warp-knitted fabric layer (2) includes a 0° weft layer (21), a 0° warp layer (22), a +45° weft layer (23), and a -45° weft layer (24) that are fixed by binding yarn and arranged in sequence.

3. The stain-resistant and water-repellent sofa fabric according to claim 2, characterized in that, The binding yarn is high-strength polyester filament; the yarns used in the 0° weft layer (21), 0° warp layer (22), +45° weft layer (23) and -45° weft layer (24) include polyester DTY filament.

4. The stain-resistant and water-repellent sofa fabric according to claim 1, characterized in that, The nylon monofilament used in the middle comb and the polyester DTY filament used in the bottom comb have a diameter of 0.1-0.15mm.

5. The stain-resistant and water-repellent sofa fabric according to claim 1, characterized in that, The foamed fabric layer (3) includes a TPU foam layer and a spunlace nonwoven fabric layer.

6. The stain-resistant and water-repellent sofa fabric according to claim 5, characterized in that, The surface of the spunlace nonwoven fabric layer is coated with an antibacterial and anti-mite agent.

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