KR100289007B1 - Polyurethane resin coating fabric which formed airtight layer and manufacturing method - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polyurethane resin coated fabric in which an airtight layer is formed to hold an air layer between fabrics, and to a method of manufacturing the same. The airtight layer 4 is formed by laminating and joining two coatings composed of a polyurethane sheet layer 2 coated with a polyurethane resin thin on the polyurethane sheet layer 2 so as to be in contact with each other to form an airtight layer 4. When the air is sealed by injecting air into the air), the injected air is surrounded by the polyurethane sheet layer 2 so that the air is not leaked and is held in the airtight layer 4 reliably and almost semi-permanently. And when used as winter clothes and sports clothing, light and warmth and excellent cushioning, and a good fit, as well as easy cutting and sewing can lower the manufacturing cost.

Description

Polyurethane resin coated fabric having an airtight layer and a method of manufacturing the same

The present invention relates to a polyurethane resin coated fabric having a hermetic layer and a method of manufacturing the same. More particularly, the present invention relates to a thermoplastic polyurethane resin coated on a fabricated base cloth, to which the gas is sealed so as to retain air therebetween. It relates to a layered polyurethane resin coated fabric and a method for producing the same.

In order to prevent impact or to impart curability and thermal insulation, and to exhibit a certain shape, in textile products, a plurality of layers of fabrics or a cotton, a sponge, a nonwoven fabric, or the like have been generally used.

Therefore, this kind of internal and external textile products had a thick thickness above all, which made it difficult to cut and sew, and also gave them a heavy and heavy feeling, and lack of breathability, which harmed the human body when worn for a long time.

In addition, these textile products have a large disadvantage that it is difficult to preserve the form, such as washing when used repeatedly several times has been required to develop a fabric that can retain the original form even after long use.

The present inventor is engaged in the development of special functional textile products as described above, and conventionally referred to as laminated fibers or quilting products such as nonwoven fabrics, sponges, etc. which are mainly used in manufacturing sports parts such as winter textile products, women's underwear products and golf gloves. Otherwise, the thickness of the fabric itself is reduced, making it easy to cut and sew, light and impart impact resistance and cushioning properties, semi-permanently retained shape, and light and absorbent, so the research has been carried out to develop a fabric that is harmless to the human body. I came to the door.

That is, in the present invention, unlike the conventional fabrics as conventional textiles used in quilting products as internal and external clothing, when two sheets of dough are overlapped, a special sheet film is placed on the dough so that air can be contained therebetween. By forming an airtight layer by coating, it can reduce the amount of fibrous fillers such as cotton or non-woven fabrics, while providing a sense of volume, imparting shock resistance and cushioning properties, and being able to retain the form of the product almost semipermanently. To provide a fabric that is harmless to the human body.

1 is a cross-sectional view of a polyurethane resin coated fabric in which an airtight layer is formed according to the present invention;

Figure 2 is a schematic diagram of one specific example of a textile product made of a polyurethane resin coated fabric having an airtight layer according to the present invention,

3 is a cross-sectional view of FIG.

※ Explanation of codes for main parts of drawing

1: Batang fabric 2: Polyurethane sheet layer

3: air inlet port 4: airtight layer

5: junction

According to the present invention, a polyurethane sheet layer is positioned inside each of two base fabrics, and the polyurethane sheet layers are bonded to each other so that an airtight layer is formed between the joining portions. It will provide a resin coated fabric.

Polyurethane resin coating fabric which forms the airtight layer of the present invention is as follows,

Melting a pellet of thermoplastic polyurethane resin at 200-220 ° C. and extruding it in a sheet state;

Compressing the extruded polyurethane sheet at a temperature of 180-200 ° C. while applying it to the cut base cloth which has been delivered;

Cutting the polyurethane resin coating prepared by the pressing process to a desired shape;

Stacking the two cut polyurethane resin coatings having the same shape so that the polyurethane sheet layers of the respective coatings are placed inward, and combining the laminates by mutual high frequency bonding to form an airtight layer therebetween;

By going through the process procedure consisting of a polyurethane resin coated fabric having an airtight layer that can be surely retained air is provided.

The hermetic layer is suitably formed by high frequency bonding a suitable place as a whole or part of the polyurethane coating as necessary, and an air layer can be formed by providing an air inlet to a part of the hermetic layer.

As the base fabric, various fabrics may be used according to the case where the manufactured fabric is applied. Usually, cotton fabric and polyvinylalcohol-based fabrics have good absorbency, and are used for golf gloves or swimwear. It can be selected from among all synthetic fibers such as polyvinyl alcohol, polyurethane, polyester, etc. as well as cotton fiber for sports clothing.

In addition, the base fabric of the material may be a woven or knitted fabric, knitted fabric is preferred for garment products that require elasticity.

Moreover, as a thermoplastic polyurethane resin, the polyether type by the polyaddition reaction of the diisocyanate of tolylene diisocyanate (2, 4- or 2, 6-mixture) and polyoxypropylene glycol or polyoxypropylene- polyoxyethylene glycol mainly is carried out. Polyurethane or polyester type polyurethane which is a condensate of adipic acid and ethylene glycol can be applied.

Hereinafter, with reference to the accompanying drawings, a polyurethane resin coated fabric and a manufacturing method thereof having an airtight layer according to the present invention will be described in detail.

1 is a cross-sectional view of a polyurethane resin coated fabric in which an airtight layer is formed according to the present invention, which is composed of two sheets composed of a base cloth 1 and a polyurethane sheet layer 2 coated with a polyurethane resin thereon. The polyurethane sheet layers 2 are laminated so as to be in contact with each other to form an airtight layer 4.

In other words, the thermoplastic polyurethane resin pellets were melted at 200-220 ° C., extruded in a sheet state, and then coated on a knitted base cloth guided to a lower conveyor, pressed at a temperature of 180-200 ° C., and dried. After cutting to suit the desired shape, these two pieces of polyurethane coating, each cut equally, are laminated so that the polyurethane sheet layer is located inward, and the laminates are bonded by mutual high frequency bonding to form an airtight layer therebetween. Will form.

Further, as can be seen in the women's bra of Figs. 2 and 3 as a main use example of the polyurethane resin coated fabric in which the airtight layer is formed according to the present invention, the polyurethane resin in which the airtight layer of the present invention is formed The coated fabric is cut into a predetermined shape and has a joint portion 5 whose edge is sealed at a high frequency. An air inlet 3 is provided on one side of the edge to inject air into the hermetic layer 4 to obtain the air. When the inlet 3 is sealed by a known means such as a stopper (not shown), the injected air is surrounded by the polyurethane sheet layer 2 so that air is not leaked and is almost semipermanently retained in the hermetic layer 4. Confidentiality. Therefore, these women's bra products are in conformity to the cup-forming bra products that contain sponges, pads or seams to support the recent trends of breasts, and have no joints in the middle, but they are light, comfortable and almost semi-permanent. In addition, it can be produced easily and inexpensively.

In Figures 2 and 3, but as an example of the present invention, women's bra, but the polyurethane resin cloth fabric formed with an airtight layer according to the present invention is light and warm unlike other conventional quilt laminated products when used as a cold protection vest or jumper, etc. It is extremely large, easy to cut and suture, and most of all, it is economical because its wear life is long because the original shape can be preserved for a long time without reducing the volume even after repeated washing.

In order to more clearly understand the polyurethane resin coated fabric and the manufacturing method of the airtight layer of the present invention will be described by way of one example, the present invention is not limited thereto and the scope of the appended claims Modifications and variations are possible without departing from the spirit of the invention.

(Example)

Thermoplastic Polyethylen Polyurethane Resin Pellets were placed in an extruder, heated to 210 ° C, and melted to advance the melt with a screw. It was applied while molding out, and pressed at 195 ° C. to form a polyurethane sheet layer on the bottom fabric. After drying the crimped molding, a polyurethane coating is obtained, and then the two coatings are cut into elliptical shapes of the same size and laminated so that the polyurethane sheet layers are positioned inward, and the edges of the upper and lower laminates are joined by conventional high frequency bonding. To form an airtight layer between the polyurethane sheet layers.

In this way, the airtight layer of the polyurethane resin coated fabric formed with the airtight layer thus formed was filled with air, and then left in the room for 3 days to test for air leakage. The impact of the air was further examined with a slight impact, but it was confirmed that the air was retained without leaking.

As described above, the polyurethane resin coated fabric having the airtight layer according to the present invention can be preserved almost semi-permanently even when used for a long time without the outflow of injected air, and it is easy to cut and suture, and the manufacturing cost is low. When used as a wrist supporter for golf gloves as a winter clothes and sporting goods, it is light, warm and stretchy, and unlike existing quilted products, it can be worn as a new one for a long time because it is not reduced in volume. It can be used more comfortably without burden when wearing it, and it is easy to wash, no deformation, and simple to manufacture, which can lower the product cost.

Claims (2)

Polyurethane sheet layers 2 are respectively positioned inside the two base fabrics 1, and the polyurethane sheet layers 2 are bonded to each other to form an airtight layer 4 between the joining portions 5 thereof. Polyurethane resin coating fabric formed airtight layer characterized in that. In order to produce a polyurethane resin coated fabric with airtight layers in order to give a lightweight, warm and voluminous form by holding an air layer between the fabrics, the thermoplastic polyurethane resin in the pellet state is melted at 200-220 ° C. Extrusion molding in sheet state; Compressing the extruded polyurethane sheet at a temperature of 180-200 ° C. while applying it to the cut base cloth which has been delivered; Cutting the polyurethane resin coating prepared by the pressing process to a desired shape; Stacking the two cut polyurethane resin coatings so that the polyurethane sheet layer of each fabric is positioned inward, and bonding the laminates by high frequency bonding to form an airtight layer therebetween; A method for producing a polyurethane resin coated fabric having an airtight layer, characterized in that consisting of.