Flame-retardant fabric belt for automobile sunroof sunshade curtain

Abstract

The utility model discloses a kind of flame-retardant fabric tape for automobile sunroof sunshade curtain, including by flame-retardant warp and flame-retardant weft interwoven flame-retardant fabric body, the both sides of the flame-retardant fabric body have the flat surface formed by hot rolling;The flame-retardant warp includes elastic flame-retardant yarn and the flame-retardant edge line located at the both sides of elastic flame-retardant yarn;The elastic flame-retardant yarn is elastic flame-retardant core-spun yarn, and the elastic flame-retardant core-spun yarn includes core filament and wrapping silk layer;The core filament is flame-retardant elastic filament;The wrapping silk layer is flame-retardant polyester filament;The flame-retardant edge line is flame-retardant nylon filament.The utility model relates to a kind of flame-retardant fabric tape for automobile sunroof sunshade curtain, using flame-retardant polyester to cover elastic filament, can provide the demand of fabric tape in elasticity.Polyester filament and nylon filament form flat surface after hot rolling.

Description

Technical Field

[0001] This utility model relates to a flame-retardant webbing for automotive sunroof sunshades, belonging to the technical field of flame-retardant webbing. Background Technology

[0002] Most cars nowadays have sunroofs, and sunroof sunshades are required to provide shade and prevent debris from falling in when the sunroof is open. The main components of a car sunroof sunshade include the curtain fabric, a roller, and a crossbeam. The front end of the curtain fabric is fixed to the crossbeam, and the rear end is wound around the roller. Opening and closing the curtain fabric requires mounting it to the sunroof frame. At the connection between the curtain fabric and the roller, a webbing is sewn along the edge of the curtain fabric for protection. The curtain fabric requires good flame retardancy and high flatness to ensure proper rolling and unrolling. Therefore, developing a flame-retardant webbing for car sunroof sunshades is a problem that needs to be solved. Utility Model Content

[0003] The purpose of this invention is to provide a flame-retardant webbing for automotive sunroof sunshades, which has a flame-retardant and smooth surface.

[0004] The present invention relates to a flame-retardant webbing for a car sunroof sunshade, comprising a flame-retardant webbing body made of flame-retardant warp yarns and flame-retardant weft yarns, wherein both sides of the flame-retardant webbing body have flat surfaces formed by hot rolling. The flame-retardant warp yarn includes an elastic flame-retardant yarn and flame-retardant edge yarns located on both sides of the elastic flame-retardant yarn; the elastic flame-retardant yarn is an elastic flame-retardant core-spun yarn, and the elastic flame-retardant core-spun yarn includes a core filament and a wrapping filament layer; the core filament is a flame-retardant elastic filament; the wrapping filament layer is a flame-retardant polyester filament. The flame-retardant edge is made of flame-retardant nylon filament.

[0005] Based on the above scheme and as a preferred embodiment of the above scheme, the elastic flame-retardant yarn includes a first elastic flame-retardant core-spun yarn and a second elastic flame-retardant core-spun yarn. The first elastic flame-retardant core-spun yarn and the second elastic flame-retardant core-spun yarn are arranged in a 1-4:1-4 order; the first elastic flame-retardant core-spun yarn and the second elastic flame-retardant core-spun yarn have opposite twist directions; Based on the above scheme and as a preferred embodiment of the above scheme, the flame-retardant elastic filament is a 40D-280D flame-retardant spandex filament.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme, the twist of the elastic flame-retardant core-spun yarn is 600-1600 twists per meter.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme, the flame-retardant polyester filament has a fineness of 30D-300D.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme, the flame-retardant weft yarn is 50D-300D lightweight flame-retardant polyester filament.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme, the flame-retardant edge line is 20D-100D nylon filament.

[0010] The beneficial effects of this utility model are as follows: The flame-retardant webbing for automotive sunroof sunshades disclosed in this utility model uses flame-retardant polyester-coated elastic filaments, which can meet the elasticity requirements of the webbing. The polyester filaments and nylon filaments are formed into a flat surface after hot rolling. Attached Figure Description

[0011] Figure 1 This is a structural schematic diagram of the flame-retardant webbing for the sunshade curtain of an automobile involved in this utility model.

[0012] The markings in the diagram are explained as follows: 1-Flame-retardant webbing body; 2-Flat surface. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0014] Example 1 Combination Figure 1 This embodiment will be described in detail below. The flame-retardant webbing for automotive sunroof sunshades involved in this utility model is a flame-retardant webbing body made of flame-retardant warp yarns and flame-retardant weft yarns interwoven together, and the two sides of the flame-retardant webbing body have flat surfaces formed by hot rolling.

[0015] In this embodiment, the flame-retardant weft yarn can be arranged in plain or twill weave, or satin weave or other suitable fabric weave structures can be selected according to actual needs. The yarns used all include heat-melting chemical fiber filaments, so that after hot rolling at a suitable temperature, a flat surface 2 is formed on both sides of the flame-retardant webbing body 1.

[0016] The flame-retardant warp yarn includes an elastic flame-retardant yarn and flame-retardant edge yarns located on both sides of the elastic flame-retardant yarn; the elastic flame-retardant yarn is an elastic flame-retardant core-spun yarn, which includes a core filament and a wrapping filament layer; the core filament is a flame-retardant elastic filament; the wrapping filament layer is a flame-retardant polyester filament; and the flame-retardant edge yarns are flame-retardant nylon filaments.

[0017] In the preparation of the elastic flame-retardant core-spun yarn, the elastic filaments are subjected to a relatively small pretension. In this embodiment, the pretension results in an elongation of approximately 5% for the elastic filaments. The wrapping angle of the flame-retardant polyester filaments is controlled at 60±2°, and the twist of the elastic flame-retardant core-spun yarn is 600-1600 twists per meter. In this embodiment, 1200 twists per meter is selected.

[0018] Furthermore, the flame-retardant elastic filament is a 40D-280D flame-retardant spandex filament. In this embodiment, 70D is selected. The flame-retardant polyester filament has a fineness of 30D-300D, and in this embodiment, 50D is selected.

[0019] Furthermore, the flame-retardant edge thread is made of 20D-100DR flame-retardant nylon filament. In this embodiment, 40D / 12F is specifically selected. The nylon filament is first dyed to the same color as the flame-retardant polyester filament, and then the flame-retardant webbing is treated to give the nylon filament a flame-retardant effect. The number of flame-retardant edge threads can be one or two on each side, or selected according to actual needs. In this embodiment, one edge thread is selected. The edge thread helps the flame-retardant webbing remain straight.

[0020] Furthermore, the flame-retardant weft yarn is 50-300D lightweight flame-retardant polyester filament, and in this embodiment, 100D / 48F lightweight flame-retardant polyester filament is selected.

[0021] Example 2 The flame-retardant webbing for automotive sunroof sunshades involved in this embodiment differs from that in Embodiment 1 in that: The elastic flame-retardant yarn includes a first elastic flame-retardant core-spun yarn and a second elastic flame-retardant core-spun yarn; the first elastic flame-retardant core-spun yarn and the second elastic flame-retardant core-spun yarn are arranged in the order of 1-4 yarns: 1-4 yarns; the first elastic flame-retardant core-spun yarn and the second elastic flame-retardant core-spun yarn have opposite twist directions.

[0022] The first elastic flame-retardant core-spun yarn and the second elastic flame-retardant core-spun yarn are arranged in a 1-4:1-4 ratio; specifically, in this embodiment, a 2:2 ratio is chosen. The first elastic flame-retardant core-spun yarn is an elastic flame-retardant core-spun yarn with an S-twist; the second elastic flame-retardant yarn is an elastic flame-retardant core-spun yarn with a Z-twist. If the warp yarns are not twisted, the flame-retardant webbing will easily pill during friction. If all the warp yarns used have the same twist direction, the prepared flame-retardant webbing will tilt and twist to one side. This is because when the yarn is twisted in one direction, the yarn will have an untwisting force in the opposite direction of the twist. When the warp yarns and yarns with different twist directions are arranged alternately, the untwisting forces of the yarns with different twist directions can be offset, allowing the flame-retardant webbing to be straight in the length direction. Furthermore, the twist of the flame-retardant edge yarn is the same as the twist of the adjacent elastic flame-retardant yarn, but the twist direction is opposite.

[0023] In this embodiment, the first elastic flame-retardant core-spun yarn consists of 178 strands, the second elastic flame-retardant yarn consists of 176 strands, and there is one edge line on each side. The width of the webbing after weaving is 59mm, and after weaving, it becomes greige fabric with a weight of 9.35 grams per meter and a thickness of 0.29-0.315mm. The webbing with interlaced loops is first hot-rolled and high-temperature set at a temperature higher than the glass transition temperature of polyester fibers, typically 100-150℃, with a pressure controlled at 10-20kg / cm² to ensure a smooth surface on the webbing, forming a semi-finished product with a weight of 10.2 grams per meter and a thickness of 0.3mm. The semi-finished product is then impregnated with a 270g / L flame retardant solution with a liquid content of 80%, dried, and then ironed on both sides to obtain the finished product with a width of 55mm, a thickness of 0.32+0.02 / -0.05mm, and a weight of 10.45 grams per meter. For the thickness test of the finished product, its width was measured every 1 meter, 20 times, with an average width of 55.1 mm. The thickness of the finished product was also tested every 1 meter, with the width measured at the edges and center, for a total of 30 tests, and each measurement met the error requirements.

[0024] Tensile tests were conducted on the raw fabric, semi-finished product, and finished product. Raw fabric: Under a tensile force of 20N, the machine elongation range was 4-6 mm; under a tensile force of 50N, the machine elongation range was 8-10 mm. Semi-finished product: Under a tensile force of 20N, the machine elongation range was 6-10 mm; under a tensile force of 50N, the machine elongation range was 11-17 mm. Finished product: Under a tensile force of 20N, the machine elongation range was 8-12 mm; under a tensile force of 50N, the machine elongation range was 13-19 mm. This meets the requirements for the retraction of automotive sunroof sunshades.

[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. A flame-retardant webbing for a car sunroof sunshade, characterized in that, It includes a flame-retardant webbing body made of flame-retardant warp yarns and flame-retardant weft yarns, and the two sides of the flame-retardant webbing body have flat surfaces formed by hot rolling. The flame-retardant warp yarn includes an elastic flame-retardant yarn and flame-retardant edge yarns located on both sides of the elastic flame-retardant yarn; the elastic flame-retardant yarn is an elastic flame-retardant core-spun yarn, and the elastic flame-retardant core-spun yarn includes a core filament and a wrapping filament layer; the core filament is a flame-retardant elastic filament; the wrapping filament layer is a flame-retardant polyester filament. The flame-retardant edge is made of flame-retardant nylon filament.

2. The flame-retardant webbing for an automotive sunroof sunshade according to claim 1, characterized in that, The elastic flame-retardant yarn includes a first elastic flame-retardant core-spun yarn and a second elastic flame-retardant core-spun yarn. The first elastic flame-retardant core-spun yarn and the second elastic flame-retardant core-spun yarn are arranged in a 1-4:1-4 order; the first elastic flame-retardant core-spun yarn and the second elastic flame-retardant core-spun yarn have opposite twist directions.

3. The flame-retardant webbing for an automotive sunroof sunshade according to claim 1, characterized in that, The flame-retardant elastic filament is a 40D-280D flame-retardant spandex filament.

4. The flame-retardant webbing for an automotive sunroof sunshade according to claim 2, characterized in that, The twist of the elastic flame-retardant core-spun yarn is 600-1600 twists per meter.

5. The flame-retardant webbing for an automotive sunroof sunshade according to claim 1, characterized in that, The flame-retardant polyester filament has a fineness of 30D-300D.

6. The flame-retardant webbing for an automotive sunroof sunshade according to claim 1, characterized in that, The flame-retardant weft yarn is 50D-300D lightweight flame-retardant polyester filament.

7. The flame-retardant webbing for an automotive sunroof sunshade according to claim 1, characterized in that, The flame-retardant edge is made of 20D-100D nylon filament.

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