KR20110001359U - CarSeat Fabric having Self-Cushion layer - Google Patents

Abstract

The present invention relates to a car seat fabric formed with a spontaneous cushion layer using a knitted fabric made of a double laselle. In particular, since it is made of a single fabric and does not require an adhesive and an adhesive process, the manufacturing process is simple and eco-friendly car seat fabric is used as a surface layer and a back layer. The present invention relates to a car seat fabric having a spontaneous cushioning layer formed by a double-lassel method in which a mesh layer formed of pile yarns is formed at the same time as the formation of the surface layer and the back layer.

Car seat, double raschel, branched yarn, knitted fabric

Description

Car seat fabric having self-cushion layer

The present invention relates to a car seat fabric formed with a spontaneous cushion layer using a knitted fabric made of a double laselle, and in particular, a car seat fabric formed with a spontaneous cushion layer having excellent eco-friendliness and excellent thermal recovery and elastic recovery since it is made of a single fabric and does not require an adhesive and an adhesive process. It is about.

In general, the car seat fabric is composed of a three-layer structure, the skin layer 10, the middle layer 20, the back layer 30 to give cushioning as shown in FIG. Polyester, nylon, polypropylene, acryl, and the like are used for the skin layer 10 and the back layer 30 fabric, and the intermediate layer 20 is a polyurethane foam. In order to combine the fabric, the intermediate layer 20 was fabricated by combining the front and back fabrics by flame laminating or adhesive lamination using an adhesive to melt the surface of the polyurethane foam to prepare a car seat fabric.

Therefore, the above structure is difficult to recycle since it is not easy to separate after bonding other raw materials in each layer. In addition, in the lamination process, a method using thermal lamination on both sides of the polyurethane foam is mainly used, where the pollutants generated by melting the polyurethane foam and the remaining organic chemicals in the polyurethane foam are sealed at a high temperature. Volatilization in the environment of use causes the fogging problem to adhere to the glass and blur. In addition, harmful emissions of cyan gas and pollutant emissions from the manufacturing process are released into the atmosphere, causing environmental pollution, and its use is increasingly restricted. Factors should be replaced by methods that are effective in eliminating hazards and using environmentally friendly materials. In addition, the polyurethane foam of the intermediate layer is composed of a closed type, there is no air permeation, when the moisture is filled with microorganisms can be unsanitary.

In order to solve this problem, U.S. Patent No.5747393 arranges polyester / polyester copolymer or viscose rayon spunbond nonwoven fibers in the form of a sandwich of four layers instead of polyurethane foam in the intermediate layer 30 to impart air permeability and cushioning properties. Sheet fabrics have been proposed that are shown and recycled. However, there are disadvantages in that the process hassle for forming a multi-layered arrangement and excellent cushioning properties such as foams are not expressed.

In addition, Korean Patent Laid-Open No. 2003-72831 relates to a composite sheet for automobile interior materials manufactured by thermocompression molding of bamboo fibers and polypropylene fibers, and a method for manufacturing the same. A polypropylene fiber and bamboo fibers are completely prepared using a mixing machine. Mixing; Evenly spreading the mixed raw materials with a carding machine; Forming an evenly spread raw material into a uniform thickness using a forming machine; processing the raw material formed into a uniform thickness with a needle punching machine as a nonwoven felt; cutting the processed nonwoven felt to a certain standard; and ; The composite material for automobile interior consisting of the step of forming the sheet by hot pressing the fabric at a pressure of 50 to 70kg / ㎠ at a temperature of 150 ℃ to 200 ℃ and the cold-pressed pressing the finished sheet A method for producing a sheet has been proposed. However, the composite sheet is a mixture of bamboo and resin is not possible to recycle to a single fiber, due to the characteristics of the bamboo lacks cushioning and comfort.

In addition, all of the above conventional technologies are manufactured through a bonding process, and the process is complicated and the process time is complicated, so that the manufacturing time of the car seat takes a long time. Due to the problem that each structural layer falling off each other.

In order to solve the above problems, an object of the present invention is to improve productivity by simplifying the manufacturing process with a three-layer structure of a surface layer, a mesh layer back layer, and a car seat with a spontaneous cushioning layer formed using a knitted paper using a double laselle, It is to provide a car seat fabric having a three-dimensional structure is hygienic, cushioning and comfortable with increased air permeability.

In addition, the car seat fabric formed with a spontaneous cushion layer of the present invention is to provide an environmentally friendly car seat fabric using a composite method in which the discharge of pollutants is reduced by not using a composite method by lamination using heat or an adhesive.

The present invention is a double layer formed of a surface layer and a back layer formed of natural fibers, synthetic fibers, regenerated fibers, and a mesh layer composed of pile yarns connecting the surface layer and the back layer simultaneously with the formation of the surface layer and the back layer. Knitted by the Larsen method, the pile yarn provides a car seat fabric formed with a spontaneous cushioning layer, characterized in that the yarn.

In addition, the synthetic fiber provides a car seat fabric having a spontaneous cushion layer, characterized in that the polyamide fiber, polyester fiber, polyacrylic fiber, polyvinyl fiber.

In addition, the pile yarn 10 to 100 denier, provides a car seat fabric with a spontaneous cushion layer, characterized in that the thickness of the yarn used for the surface layer and the back layer is 40 to 200 denier.

In addition, the divided yarn provides a car seat fabric having a spontaneous cushion layer, characterized in that the hollow divided yarn.

In addition, the divided yarn provides a car seat fabric using a double laselle, characterized in that the false twisted yarn.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, it should be noted that in the drawings, the same components or parts denote the same reference numerals as much as possible. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted so as not to obscure the subject matter of the present invention.

As used herein, the terms "about", "substantially", and the like, are used at or near the numerical values when the manufacture and material tolerances inherent in the meanings indicated are intended to aid understanding of the subject innovation. Accurate or absolute figures are used to assist in the prevention of unfair use by unscrupulous infringers.

The present invention relates to a car seat fabric formed with a spontaneous cushion layer using a double laselle excellent in heat retention, breathability, cushion (Cushion).

Figure 2 is a cross-sectional view of the structure according to a preferred embodiment of the car seat fabric with a spontaneous cushion layer formed according to the present invention is a car seat fabric formed with a spontaneous cushion layer according to the present invention surface layer 100, mesh layer 200, back layer 300 It is composed of three layers.

The surface layer 100 and the back layer 300 may be formed using natural fibers, synthetic fibers, regenerated fibers, and the like, when using synthetic fibers, polyamide-based fibers made of nylon 6 and nylon 66, polyethylene terephthalate and polypropylene terephthalate Synthetic fibers such as polyester-based fiber, polyacrylonitrile-based fiber, polyvinyl alcohol-based fiber, etc. may be used individually, and two or more synthetic fibers may be mixed and used depending on the purpose or purpose of use.

The mesh layer 200 is a layer for forming a spontaneous cushion. The mesh layer 200 is a spatial structure layer in which an empty space may be formed, which may contain air to impart a function of warmth, breathability, and cushioning of the car seat of the present invention. At the same time as the surface layer 100 and the back layer 300 is formed, it is a layer composed of pile yarns formed of divided yarns connecting the surface layer 100 and the back layer 300.

The pile yarn uses divided yarns for morphological stability and elastic recovery of the air structure layer.

The air structure layer formed on the mesh layer is a layer in which empty spaces are formed between the top layer 100 and the back layer 300 by the branch thread yarn, and has excellent air permeability. It will give comfort.

In addition, if the carcass fabric can be made lighter by using the hollow fiber system, the fiber may increase the amount of air to be charged, thereby improving insulation and improving sound absorption, thereby reducing noise during driving of the vehicle.

In addition, in order to increase the elastic recovery power of the car seat fabric of the present invention, it is also possible to use a combustible divided yarn having a potential crimp. When the divided yarn is used as a false twist yarn, the cushioning properties will be improved, and the shape stability of the car seat will be improved.

It is preferable to use mono yarns of 10 to 100 denier for imparting cushioning properties to the pile yarn included in the back layer 200. When the thickness of the yarn is less than 10 denier, the recovery of elasticity is slow and the cushioning feeling is slow, and when it exceeds 100 denier, it is difficult to exert cushioning and a comfortable feeling. In addition, since the surface layer 100 and the back layer 300 supports the shape of the fabric, it is preferable to use 40 to 200 denier yarns. In the case where the thickness of the yarn is less than 40 denier, the supportability of the surface layer is low, and the deformation of the fabric form is easy when the entire fabric is completed, and when it exceeds 200 denier, the touch of the sheet is rough and the comfort is insufficient.

The surface layer, mesh layer, and back layer of the car seat fabric in which the spontaneous cushion layer is formed according to the present invention will be manufactured by knitting using a double-lassel knitting machine having two rows of needle bars arranged on both sides. .

A general example of such a double-lasel knitting machine includes six guide bars for supplying yarns in a swinging and lapping operation, a trick plate that is fixedly arranged in both longitudinal directions of the guide bar, and on each side of the trick plate. Two rows of needle bars arranged and lifting and a sinker which moves forward and backward in the horizontal direction toward each trick plate with these needle bars interposed therebetween. Two guide bars located at the front and the rear of the center organize the tissue of the surface layer and the back layer of the knitted fabric paper, and the two guide bars located at the center make the mesh structure.

In addition, this double-lasel knitting machine is a super-fiber knitting mesh structure, and since it uses a soft thread that can bend and deform sufficiently even in a narrow space, it forms a simple plate with a trick plate that supports the super-fiber knitting mesh structure. Or a groove slightly larger than the diameter of the superfine yarn may be formed to face the knitting needle.

The surface layer of the car seat fabric having a spontaneous cushioning layer formed according to the present invention formed as described above will be preferable to use an anti-fouling yarn to form a surface layer as a layer to the outside.

The antifouling processing is a method of antifouling processing according to the type of dirt, the type of fibers used, so the antifouling processing should be carried out according to the type of vehicle or yarn used car seat fabric according to the present invention.

In general, hydrophobic fibers such as polyamide-based fibers or polyester-based fibers are highly adherent to dry soils, so use an antistatic agent, and water-repellent processing of hydrophilic fibers such as cotton fibers should be performed.

In the case of fluorine compounds in cotton, wool, synthetic fibers, etc., water-repellent and oil-repellent properties can be given using perfluoro alkyl esters of acrylic acid, or antifouling properties can be imparted by processing with resin, resin processing, colloid, silica, and the like.

In addition, in case of emergency can be carried out flame retardant to the car seat fabric or yarn used in the present invention.

The flame retardant is flame retardant (flame retardant) made of a compound containing an element such as halogen, phosphorus, antimony, nitrogen, boron, etc. can be flame retarded by the post-processing coating the flame retardant on the surface of the fabric.

The car seat fabric having a spontaneous cushion layer of the present invention can be flame retarded by copolymerizing a flame retardant monomer (flame retardant) when synthesizing synthetic fibers used when synthetic fibers are used. Flame retardant treatment can also be carried out by the method.

Flame retardant processing of polyester fiber is performed by pad-dry-cure method, pad-dermazole method, adsorption method, and graphing method, and the processing agent swells and diffuses the fiber into the fiber surface in order to penetrate the polyester fiber well. After soaking in, it is insoluble by crosslinking, grafting or condensation polymerization to render the fiber flame retardant. For example, using Flamegard PE conc (SYBRON Chemical Inc. USA) as flame retardant of polyester fiber, flame retardant processing at 190 ~ 200 ℃ of 5 ~ 20% (owb: on weight of bath) of FlameGard PE conc Excellent washing durability, flame retardant polyester fiber can be obtained.

In addition, flame retardant processing of polyamide-based or acrylic fibers is characterized by using thiourea as a combination of urea-thiourea-formaldehyde, and can be processed by a pad-dry-cure method.

As described above, the car seat fabric having a spontaneous cushioning layer according to the present invention does not use a lapping method by lamination using heat or an adhesive, thereby reducing environmental pollution as an environment-friendly product without the emission of pollutants. .

In addition, the car seat fabric formed with a spontaneous cushion layer of the present invention is made of a double-lassel knitting machine with a three-layer structure of a surface layer, a mesh layer, and a back layer, thereby simplifying the process and improving productivity, and a three-dimensional structure in which an air constituent layer is formed on the mesh layer. As it has excellent air permeability, hygiene and warmth and comfort are provided.

In addition, the car seat fabric formed with a spontaneous cushion layer of the present invention is excellent in elastic recovery rate, cushioning properties, and has a sound absorption, thereby reducing the noise of the car.

Hereinafter, examples and comparative examples of the present invention will be described in detail. However, the present invention is not limited to the scope of the following examples.

Example  One

Both the surface layer 100 and the back layer 200 are composed of 80D polyethylene terephthalate filament yarn, and the mesh layer is knitted with a double-latel knitting machine described above with a polyester spun yarn of 20D to produce a car seat fabric having a spontaneous cushion layer according to the present invention. It was.

Example  2

In the same manner as in Example 1, a car seat fabric having a spontaneous cushioning layer according to the present invention was manufactured using the divided thread yarn of the mesh thread.

Comparative example

The surface layer and the back layer are made of 80D polyethylene terephthalate filament yarn and the intermediate layer is made of polyurethane foam between the surface layer and the back layer by flame laminating to melt the surface of the polyurethane foam with fire. Was synthesized to prepare a car seat fabric.

* Cushionability and elastic recovery rate experiment

The car seat fabric prepared in the above Examples and Comparative Examples was prepared by a sample of 10cmx10cm and 10 sheets were overlapped and then experimented.

1. Cushionability Experiment

The prepared sample was placed on a table, and the sensory evaluation was performed by pressing lightly three times with the fingertips (three fingers) from above.

2. Elastic recovery test

The prepared sample was placed on a table, and after 500 g of weight was put on the sample for 1 hour, the recovery force after 3 seconds, 10 seconds, and 1 minute after the weight was measured was measured.

division
Cushionability Evaluation
Elastic recovery rate (%) 3 sec 10 sec 1 minute Example 1 8 80 93 99 Example 2 9 83 95 99 Comparative example 8 76 92 99 Cushion Evaluation
10 to 9 points of cushioning Very good, 8 to 7 points of cushioning Good, 6 to 4 cushioning Normal, 3 to 1 cushioning Poor

As a result of Table 1, it can be seen that the evaluation of the cushion property of Example 1 and 2 and Comparative Example is good cushioning, and the elastic recovery rate is higher in Example 1 and 2 than the Comparative Example. In particular, it can be seen that the elastic recovery rate of Example 2 using the combustible divided thread is very excellent.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

1 is a cross-sectional view showing the structure of a conventional car seat fabric.

Figure 2 is a cross-sectional view of the structure according to a preferred embodiment of the car seat fabric is formed spontaneous cushioning layer according to the present invention.

Figure 3 is a state of use of the car seat fabric formed spontaneous cushioning layer according to the present invention.

DESCRIPTION OF THE RELATED ART [0002]

10: epidermal layer 20: intermediate layer

30: back layer 100: surface layer

200: mesh layer 300: back layer

Claims (5)

The double layer method is formed of a surface layer and a back layer formed of natural fibers, synthetic fibers, and regenerated fibers, and a mesh layer composed of pile yarns connecting the surface layer and the back layer with the formation of the surface layer and the back layer. Knitting, The pile yarn car seat fabric formed with a spontaneous cushion layer, characterized in that the divided yarn. The method of claim 1, The synthetic fiber is a car seat fabric with a spontaneous cushion layer, characterized in that one selected from polyamide fiber, polyester fiber, polyacrylic fiber, polyvinyl fiber. The method of claim 1, The pile yarn is 10 to 100 denier, car seat fabric with a spontaneous cushion layer, characterized in that the thickness of the yarn used for the surface layer and the back layer is 40 to 200 denier. The method of claim 1, The split yarn is a car seat fabric with a spontaneous cushion layer, characterized in that the hollow split yarn. The method according to claim 1 or 4, The divided fiber is a car seat fabric formed with a spontaneous cushion layer, characterized in that the false twisted yarn.

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