JP2528308Y2 - Electromagnetic shield interlining - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive interlining having electromagnetic wave shielding properties, and provides clothing having excellent electromagnetic shielding properties when used as an adhesive interlining such as clothing.

[0002]

2. Description of the Related Art With the development and spread of OA equipment, the influence of radio waves on the human body has been studied worldwide, and some studies have found causal relationships. The miniaturization and portability of electronic devices are increasing the influence of electromagnetic waves. Conventionally, as a material of clothes for protecting the human body from these electromagnetic waves, an apron, a vest or a so-called uniform using a mixed or woven fabric with a conductive fiber (carbon fiber, metal fiber, metal-plated fiber, etc.) for the outer material is used. Have been. In each case, since the conductive fiber is used as a thread, there is a problem that in order to effectively shield an electromagnetic wave, an effect is not produced unless a considerable amount of the conductive fiber is mixed.

[0003] Further, conductive fibers are generally colored in metal and are used as a surface material, so they cannot be said to be suitable for office wear or the like requiring fashionability. Attempts have been made to coat the surface with a material, but there is a problem that it is hard to be accepted by the user due to the feeling and color.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a method of bonding a nonwoven fabric containing silver-plated fiber, which is most excellent in electromagnetic wave shielding properties, and an adhesive containing conductive powder on the surface thereof in the form of dots. By using the interlining, the problem has been solved by providing clothes having an excellent electromagnetic wave shielding property and a rich fashion sense without restricting the color, design, pattern and the like of the cloth.

[0005] That is, the electromagnetic wave shielding interlining of the present invention mixes synthetic fibers such as polyester or nylon fibers with silver-plated fibers, and forms a web with an ordinary web forming machine.
The basis weight of the fiber web is determined in order to satisfy the required performance as an electromagnetic wave shielding interlining, but it is preferable that at least the amount of the silver-plated fiber contained therein is in the range of 5 to 10 g / m ² . The obtained fiber web is bonded with a binder, or a web in which 20 to 60% of heat-fusible fibers are mixed in advance is prepared, and then a non-woven fabric substrate is obtained by means of fusing and fixing with a hot roll. A dispersion or mixed powder mainly composed of a polyamide or polyester resin in which a powder of conductive carbon, nickel, aluminum or the like is mixed into the obtained base nonwoven fabric is applied to the base nonwoven fabric in the form of dots and dried or dried. By fusing and fixing, an adhesive interlining excellent in shielding effect is obtained. The mixing amount of the conductive powder is desirably in the range of 10 to 40% that does not impair the adhesiveness.
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0006]

[Example] Nylon 1.5d x 51mm 65%, polyester 2d x 51mm 10%, silver plated fiber 1.5d x
A cross web having a basis weight of 30 g / m ² with a blend fiber of 51 mm and 25% was embossed at a surface temperature of 200 ° C. and a pressure of 5.
A hot roll treatment was performed partially at 0 kg / cm ² to obtain a non-woven fabric having an apparent thickness of 0.3 mm and containing 7.5 g / m ^{2 of} silver-plated fibers. Furthermore, on the surface of the nonwoven fabric, 15 parts by weight of the paste adhesive having the above composition
g / m ² was applied in the form of dots to obtain an adhesive interlining having electromagnetic wave shielding properties. The adhesive forming the dots is not limited to the polyamide resin. FIG.
1 shows a schematic configuration diagram obtained in the above-mentioned embodiment, wherein 1 is a silver-plated fiber, and 2 is a synthetic fiber such as polyester or nylon.
Is uniformly mixed to form the heat-sealed portion 3 to form the nonwoven fabric 4. Dots 6 of a polyamide resin in which carbon 5 is dispersed as conductive powder adhere to the surface of the nonwoven fabric to form an electromagnetic wave shield interlining.

Next, as a comparative example, a nonwoven fabric similarly formed by removing the silver-plated fiber from the cotton blend of the example is referred to as a comparative example 1. Similarly, the powdered carbon blended with the dot resin is extracted in the example. In the same manner, the performance comparison was made using the nonwoven fabric bonded interlining formed as Comparative Example 2 and the bonded nonwoven fabric obtained in each of the above Examples and Comparative Examples and the surface cloth bonded together as measurement samples. Table 1 shows the results of the test.

[0008]

[Table 1]

The shield characteristics in the table were measured by the Advanlast method (at a frequency of 100 MHz).

[0010]

[Effects of the Invention] As is apparent from the above results, the electromagnetic shielding interlining of the present invention uses silver as a single fiber (1-6 d).
Of about 5 to 10 g / m ^{2 with} respect to the weight of the nonwoven fabric constituent fiber by mixing the silver-plated fiber plated on the surface of the non-woven fabric with the required amount for satisfying the shielding property, that is, the cost of the conductive powder. Adhesive interlining with extremely excellent electromagnetic wave shielding properties can be obtained by the combined effect of mixing in the adhesive resin, and without limiting the color, design, pattern, etc. of the clothing material, it is possible to create fashionable electromagnetic wave shielding clothing. It has practical effects such as being able to provide.

[Brief description of the drawings]

FIG. 1 is a schematic structural view showing an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Silver plating fiber 2 Synthetic fiber 3 Heat fusion part 4 Nonwoven fabric 5 Carbon powder 6 Polyamide resin dot

Claims (1)

(57) [Scope of request for utility model registration] An interlining comprising a non-woven fabric made of a mixed fiber web of silver-plated fiber and synthetic fiber, wherein a heat-fusing resin is attached in a dot shape on the surface of the non-woven fabric, wherein the mixed fiber web is based on the weight of the non-woven fabric constituent fibers. An electromagnetic wave shielding interlining, comprising 5 to 10 g / m ² of silver-plated fiber, and wherein the heat-sealing resin contains 10 to 40% of conductive powder.