Method for forming hot melt super coating on coated abrasive tool

Abstract

The invention discloses a method for forming a hot melt super coating on a coated abrasive tool, which is to heat and melt a material and coat the molten material by a roller coating equipment onto the surface of the coated abrasive tool, and is characterized in that: the material is stearate, or a mixture of stearate and paraffin wax or a mixture of stearate, paraffin wax and antioxidant or mixture of stearate, paraffin wax, antioxidant and EVA resin or PP resin and is heated and melted at the temperature of 110 to 160 DEG C; the molten stearate or mixtures of the stearate is coated on the surface of abrasive paper or abrasive cloth by hot melt coating equipment; and naturally cooling, drying and obtaining hot melt coating products. The hot melt coating has the advantages of no toxicity, no solvent, low cost, short production route and the like compared with water soluble or solvent coating, and the obtained abrasive tool has a more compact surface structure and has the advantages of blockage prevention, burn prevention and the like in use.

Description

technical field [0001] The invention discloses a hot-melt supercoat coating method for coating abrasive tools, which belongs to the field of abrasive tool manufacturing. In particular, it relates to a coating method of a hot-melt supercoat coating on the surface of abrasive tools. Background technique [0002] Abrasives are tools used for grinding, grinding and polishing. Most of the grinding tools are artificial grinding tools made of abrasives and bonding agents, and natural grinding tools are also directly processed into natural ore rocks. In addition to being widely used in machinery manufacturing and other metal processing industries, abrasive tools are also used in the processing of non-metallic materials such as grain processing, paper industry, ceramics, glass, stone, plastic, rubber, and wood. Coated abrasives are an important part of abrasives, which refer to abrasives made by adhering abrasives to a flexible substrate (cloth or paper, etc.) with a binder. The c...

AI Technical Summary

Problems solved by technology

[0004] The disadvantages of solvent-based coatings are: 1. Organic solvents are highly toxic, cause serious pollution, have a great impact on the environment, and are harmful to the health of operators

2. The price of organic solvents is relatively expensive, and most of them will be volatilized during use, resulting in high cost

3. The manufacturing process is relatively long and requires heating and drying, which consumes a lot of energy

[0006] The disadvantages of water-soluble coating products are: 1. The water-soluble emulsion system is unstable, which may easily lead to low product yield

2. The production process of water-soluble coating is long and requires heating and drying, which consumes a lot of energy

In actual production, it is necessary to purchase and prepare one or more of hot melt adhesives, hot melt lubricants or hot melt coatings, which objectively increases the product cost and increases the process.

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