Acid-water-resistant and erasable marking pen special for battery

By optimizing the ink formula and pen body structure, the problem of stable writing and erasing of marking tools in acidic and humid environments in lead-acid battery production workshops has been solved, achieving low-cost and easy-to-erase marking effects suitable for small and medium-sized enterprises.

CN121004852APending Publication Date: 2025-11-25TIANNENG BATTERY GRP (JIANGXI) CO LTD
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Patent Information

Application Number
CN202511269883.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2025-11-25

AI Technical Summary

Technical Problem

Existing marking tools are difficult to write stably in the acidic and humid environment of lead-acid battery production workshops, and are difficult and costly to remove, which cannot meet the needs of small and medium-sized enterprises.

Method used

Employing an optimized ink formulation and simplified pen body structure, including modified acrylic resin, alcohol-soluble polyamide resin, silicone resin, acid-resistant dyes, and low-cost solvents, combined with a 304 stainless steel nib and PP plastic shell, it ensures that markings are stable in acidic and humid environments and can be erased with industrial alcohol.

Benefits of technology

It achieves stable writing in acidic and humid environments, and the marks can be completely erased without leaving a trace. It is low-cost and suitable for small and medium-sized enterprises, reducing material and production costs.

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Abstract

The invention relates to the technical field of industrial marking tools, and discloses an acid-water-resistant and erasable marking pen special for a battery. The pen body comprises a sealing structure, a pen point and an ink storage core for storing ink; the ink is prepared from modified acrylic resin, alcohol-soluble polyamide resin, organic silicon resin, a silane coupling agent, acid-resistant dye, an auxiliary coloring agent, industrial alcohol, isopropanol, methylbenzene, citric acid, borax, a nonionic surfactant and an antioxidant according to a specific proportion. By optimizing the ink formula and simplifying the pen body structure, the stable writing function in acidic and humid environments is achieved, meanwhile, it is ensured that marks can be completely erased through common industrial alcohol without leaving traces, and the ink is low in cost, easy to manufacture and convenient to use.
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