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Method for spray coloring rubber surface

A rubber surface and rubber technology, applied in the field of industrial model manufacturing, can solve problems such as cracking, degreasing, and long time consumption, and achieve the effects of high impact resistance, good adhesion, and increased production speed

Active Publication Date: 2008-08-06
BEIJING KINGCO TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this technology is that once the color of the formed part needs to be changed, the model has to be re-colored and watered, which not only takes a long time, but also wastes a lot of materials
[0003] However, if ordinary paint is used to color the rubber by direct spraying, the biggest problem is that the rubber is soft and elastic, and it will not dissolve and penetrate with many paints. After the paint is sprayed, cracks often occur and degreasing
In the prior art, the paint is directly sprayed on the product template, and then the rubber is poured. After molding, although the sprayed color can remain on the rubber surface, but after the template has a certain depth, the sprayed product will have uneven color. Unstable results; cracking occurs despite some improvement in adhesion

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] (1) Under normal temperature and pressure, 45 grams of naphthenic rubber paint, 5.0 grams of dark gray color paste, 15 grams of curing agent and 12 grams of diluent are fully stirred and uniformly mixed. Compatible with naphthenic rubber paint;

[0014] (2) Utilize the paint spray gun to spray the above-mentioned modulated dark gray mixed paint on the surface of the rubber product at an air pressure of 2.5 kg / cm2 to form a wet surface with a thickness of 15 microns;

[0015] (3) Put the above-mentioned product sprayed with paint into an oven at a temperature of 75°C and bake for 40 minutes, take it out and cool it down naturally, so that the surface of the workpiece can have a rubber texture, good wear resistance, and can be firmly attached to the surface of the workpiece. The dark gray color of the surface of the rubber workpiece.

Embodiment 2

[0017] (1) Under normal temperature and pressure, 50 grams of naphthenic rubber paint, 7 grams of dark blue color paste, 18 grams of curing agent and 14 grams of diluent are fully stirred and uniformly mixed. Suitable for alkyl rubber paint;

[0018] (2) Utilize the paint spray gun to spray the above-mentioned modulated dark blue mixed paint on the surface of the rubber product with an air pressure of 3 kg / cm2, forming a wet surface with a thickness of 20 microns;

[0019] (3) Put the above-mentioned product sprayed with paint into an oven with a temperature of 85°C and bake for 45 minutes, take it out and cool it down naturally, so that the surface of the workpiece can have a rubber texture, good wear resistance, and can be firmly attached to the surface of the workpiece. The dark blue color of the surface of the rubber workpiece.

Embodiment 3

[0021] (1) Under normal temperature and pressure, 55 grams of naphthenic rubber paint, 9.5 grams of yellow color paste, 20 grams of curing agent and 16 grams of diluent are fully stirred and uniformly mixed. Suitable for alkyl rubber paint;

[0022] (2) Utilize the paint spray gun to spray the above-mentioned prepared yellow color mixed paint on the surface of the rubber product with an air pressure of 4.0 kg / cm2, forming a wet surface with a thickness of 20 microns;

[0023] (3) Put the above-mentioned sprayed product into an oven with a temperature of 95°C and bake for 50 minutes, take it out and cool it down naturally, so that the surface of the workpiece can obtain a comfortable rubber feeling, good wear resistance, and firm adhesion Yellow color on the surface of the rubber workpiece, without cracking and degreasing.

[0024] More examples show that: when preparing paints of different colors, if the curing agent component in the mixed paint is appropriately increased, or...

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Abstract

The process of spraying and colorizing rubber surface includes the following steps: 1. compounding paint with rubber paint 40-55 weight portions, color paste 5.0-9.5 weight portions, curing agent 15-20 weight portions and diluent 12-16 weight portions and through stirring at normal temperature; 2. spraying the paint with paint gun in the pressure of 2.5-4.0 kg / sq cm to the surface of rubber product; and 3. roasting the sprayed product in oven at 75-95 deg.C for 40-50 min and taking out to cool naturally. The process has high production speed, and the paint has bright color, high adhesion, high impact strength and other advantages.

Description

technical field [0001] The invention relates to the field of industrial model manufacturing, in particular to a method for spraying and coloring rubber surfaces. Background technique [0002] Rubber is a soft and hard rubber product with a wide range of uses. Especially in recent years, electronic model products have developed rapidly, and the coloring of rubber parts plays a very important role in the model industry. At present, the relatively mature technology used by many model manufacturers to make rubber parts is to add color paste to the rubber liquid. After pouring and molding, the color of the rubber parts is determined. The disadvantage of this technology is that once the color of the formed part needs to be changed, the model has to be re-colored and watered, which not only takes a long time, but also wastes a lot of materials. [0003] However, if ordinary paint is used to color the rubber by direct spraying, the biggest problem is that the rubber is soft and el...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05D7/02B05D7/26B05D3/02C09D115/02
Inventor 徐威
Owner BEIJING KINGCO TECH DEV
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