JPS6088301A - Application of multicolor graduation for stainless steel scale - Google Patents

Abstract

PURPOSE:To enable coloring beautifully and clearly by a method wherein after energizing property is lost at a desired etched part, the etched part having energizing property alone is immersed into an electro painting tank to attach a paint therein thereto and then, undergoes a baking and drying. CONSTITUTION:An etching is done on the surface of a stainless steel scale substrate A by photoengraving for graduation lines 1 and indication numerals 2. Then, with an etching protection layer 3 on, a desired color paint 4 is filled into proper etched part by screen printing or the like or after the surface thereof is covered with a vinyl film 5 to be washed with pure water, it is energized being immersed into an electro painting tank. Under the condition, a paint in the tank is attached to parts filled with the paint 4 or the etched part (a) except for those covered with the film 5. Then, when the substrate A is taken out of the electro painting tank and undergoes a baking and drying, the paint can be fastened on the substrate. This enables the coloring beautifully and clearly.

Description

[Detailed Description of the Invention] This invention relates to a method of making a multicolor scale 4=J' on the following (=
The details will be explained below.

To add graduations to a stainless steel scale, apply a photosensitive agent to the stainless steel scale substrate and develop it using a negative scale to preserve the parts other than the scale silver and displayed numbers.B! 1 coating is formed, and a known etching process is performed to etch the scale lines and display numerals. Conventionally, as a means of coloring this original part, the etched protective coating 5 (11 fat thread has electric N!3 edge properties) is used as a protective coating for plating, and is immersed in a plating coating as it is for plating. There are currently two methods in use: one method (Special Publication No. 52-1673J) and another method in which the etchant is removed and the etched recesses, i.e., scale lines, etc. are filled with paint and baked. It is difficult to apply this, and each piece must be done by hand as the paint burns, resulting in very poor work efficiency.

The original part loses its electrical conductivity and can be colored as desired. That is, as in the past, the surface of the stainless steel scale board A is filled with the paint 4 of any color on the scale by screen printing or the like (Fig. 2), or it is filled with a vinyl film 5 (Fig. 3). ), after rinsing with pure water, immersing it in an electric coating tank and energizing it, the paint of the electric column adheres only to the etched areas a other than the parts filled with paint 4 or the parts covered with film 5, and 1 board A The paint is taken out from a vacuum cleaner and baked to dry, thereby fixing the paint onto the substrate.

At this time, the parts that were previously filled with paint by screen printing etc. are also fixed to the substrate in the same way, and the parts covered with film 5 can be colored by peeling off the film and immersing them in Kameyutsuku of a different color again. Hopefully, the previously painted parts will lose their electrical conductivity and the paint from the tank will not stick to them. After the paint is adhered to the etched portion, the protected edge 3 is removed.

As described above, the method of the present invention allows the scale engraved glands and the engraved parts of the display numbers on stainless steel scales to be colored in any color, and when coloring is done by screen printing, etc., the existence of a protective coating prevents the engraved parts from protruding beyond the engraved parts. The paint is removed along with the protective coating and is neatly and clearly colored.

[Brief explanation of drawings]

The first factor is the front view of the scale for implementing the method of the present invention.
The figure and fI3 are enlarged sectional views showing the coating process in progress of the method of the present invention. A is the board and 1 is the scale? fiA2 is the display number 3 is the protection failure 4 is the filling paint 5 is the film special applicant Kawasaki Doki Seisakusho Co., Ltd.

Claims (1)

[Claims] After etching the scale lines using known photolithography on a stainless steel substrate, the etching protection was left as is.
After applying paint by screen printing or covering the etched areas with vinyl tape, etc., to make the etched areas lose their electrical conductivity, immerse them in the electric M coating bath to apply electricity only to the etched areas that have electrical conductivity. A method for adding multicolor scales to stainless steel scales, which is characterized by applying N-wood paint and baking and drying it.