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Method for producing conductive material

A technology of conductive material and manufacturing method, applied in the direction of printed circuit manufacturing, cable/conductor manufacturing, conductive layer on insulating carrier, etc., to achieve the effects of high storage stability, high transparency and conductivity, and high conductivity

Active Publication Date: 2009-07-01
MITSUBISHI PAPER MILLS LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in order to obtain good conductivity for use as a conductive material, in order to disperse and volatilize the dispersant to form a mutual connection by fusion between the metal ultrafine particles, a firing process is necessary, not only for this energy, and from the point of view of heat resistance, the substrates that can be used are also limited

Method used

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  • Method for producing conductive material
  • Method for producing conductive material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0255] An example of the first aspect of the present invention is shown below. In order to produce the conductive material precursor, as a transparent support, a polyethylene terephthalate film having a layer containing polyvinylidene chloride with a thickness of 100 μm was used. Before coating the physical development core layer, the dry mass of gelatin coated on the film is 50mg / m 2 The base layer is dried. Next, as described below, a physical development core layer coating solution containing palladium sulfide was prepared.

[0256]

[0257] A solution palladium chloride 5g

[0258] Hydrochloric acid 40ml

[0259] Distilled water 1000ml

[0260] Solution B Sodium sulfide (soda) 8.6g

[0261] Distilled water 1000ml

[0262] The A liquid and the B liquid were mixed while stirring, and passed through a column filled with an ion exchange resin after 30 minutes to obtain a palladium chloride sol.

[0263]

[0264] The palladium chloride sol 50ml

[0265] 2% by mass glutar...

Embodiment 2

[0310] The test was performed in the same manner as in Example 1 except that the post-treatment liquids 1-9 of Example 1 were used, and the treatment temperature and treatment time were changed. As a result, the results shown in Table 3 were obtained.

[0311] table 3

[0312] Conductive material

[0313] From Table 3, it can be fully understood that the surprising effect of the present invention that the resistance value can be reduced to 1 / 5 of the original value by the post-treatment at 60°C for only 10 seconds.

Embodiment 3

[0315] In the same manner as in Example 1, a back coat was applied to the polyethylene terephthalate film.

[0316] Next, the silver halide emulsion layer 2 was coated on the surface of the support on the opposite side to the surface on which the back coat was provided. The silver halide emulsion is produced by the usual double injection mixing method of the silver halide emulsion for photographs. The silver halide emulsion is formulated into 40 mol% silver chloride and 60 mol% silver bromide, with an average particle size of 0.15 μm. According to the fixing method, the silver halide emulsion obtained in this way was subjected to gold sulfur sensitization using sodium thiosulfate and chloroauric acid. The silver halide emulsion obtained in this way contains 1 g of gelatin per 3 g of silver.

[0317] 2 >

[0318] Gelatin 1g

[0319] Silver halide emulsion equivalent to 3.0g silver

[0320] l—Phenyl—5-mercaptotetrazole 3.0g

[0321] Surfactant (S-1) 20mg

[0322] Glyoxal (40% by mas...

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Abstract

Disclosed is a method for producing a conductive material which is high in transparency and conductivity, while having high storage stability. Also disclosed is a method for producing a conductive material by using ultrafine silver particles, which enables to obtain a conductive material having high conductivity without requiring a sintering step which has been necessary for conventional methods. Specifically disclosed is a method for producing a conductive material having a conductive pattern containing silver on a supporting body. This method for producing a conductive material is characterized in that one of the substances (I)-(IV) shown below is caused to act on the pattern portion containing silver which is formed on the supporting body. (I) a reducing substance (II) a water-soluble phosphorus oxo acid compound (III) a water-soluble halogen compound (IV) hot water at 55 DEG C or higher.

Description

Technical field [0001] The present invention relates to a method for manufacturing a conductive material having a conductive pattern containing silver on a support. Background technique [0002] In recent years, with the rapid development of the information society, technology related to information-related equipment has rapidly advanced and spread. Among them, display devices are used for televisions, personal computers, for displaying guides in stations or airports, and for providing various other information. In recent years, plasma displays have received particular attention. [0003] In such an information society, the influence of electromagnetic waves radiated from these display devices is worrying. In particular, the influence of electromagnetic waves that endanger human health cannot be ignored, and the intensity of the electromagnetic field irradiated to the human body needs to be reduced. In response to such requirements, various transparent conductive materials used a...

Claims

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Application Information

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IPC IPC(8): H01B13/00H05K3/00H01B5/14
Inventor 吉城武宣志野成树小林和久
Owner MITSUBISHI PAPER MILLS LTD
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