Yamahachi Chemical Co., LTD. Product Lineup

Our company began research and development of "continuous porous materials" as stamp materials in 1977. Since then, we have continuously advanced the manufacturing and development of products that meet the needs of our customers and the market, based on "continuous porous materials" as our core technology. Currently, we are actively engaged in creating new products from the customer's perspective, including the development of porous pen tips for writing instruments, porous chips for cosmetics, and custom-made "continuous porous" functional components tailored to our customers' development products. [Business Activities] ■ Manufacturing and development of continuous porous materials ■ Manufacturing and sales of porous pen tips, cosmetic chips, ink pads, and stamp materials ■ Manufacturing and processing of automotive-related molded parts *For more details, please refer to the PDF materials or feel free to contact us.

The "Yamahach Chemical Development Case Collection" is a compilation of development cases for special materials utilizing PE continuous porous bodies. It includes examples of added optional features such as special shapes, two-layer structures, micro-coating performance through surface processing, electrical conductivity, and new functionalities. It also features development cases that are difficult to achieve with conventional porous materials. You might find technologies and materials that seemed possible but were not achievable here. *Please view the PDF of the case collection via download.

The material with a three-dimensional mesh-like pore structure, where countless small spaces (pores) are connected and part of the walls between these spaces are open, is called "continuous porous material." Our product from Yamaha Chemical is based on plastic and features properties such as coatability, liquid absorption, moisture retention, and low dust generation. By combining the excellent functions of the material with our unique molding and processing technology, we realize porous materials tailored to customer needs. In particular, it excels in functions related to "coating," "absorbing," "wiping," and "retaining" for oils, chemicals, and inks! This is a functional porous material that incorporates shapes and functions that are difficult to achieve with conventional porous materials. 【10 Functions】 ■ Coatability ■ Liquid Absorption ■ Low Dust Generation ■ Chemical Resistance ■ Moisture Retention ■ Permeability ■ Hydrophobicity ■ Oleophilicity ■ Adsorption ■ Flexibility 【Unique Molding and Processing】 ■ Extrusion Molding / Injection Molding ■ Two-layer molding with different pore diameters (roll) ■ Secondary processing such as assembly processing and grinding processing ■ Surface treatment *For more details, please refer to the PDF document or feel free to contact us.

This is a technical document that explains common issues encountered when considering the introduction of porous materials. At Yamahachikemical, we can propose porous materials that meet your needs through repeated discussions with our customers. Our plastic continuous porous material technology, "Yamahachi Porous," will solve your problems. 【Do you have any of these issues? (Some examples)】 ■ I want to create complex shapes... ■ I want moderate elasticity... ■ I want something with excellent chemical resistance... ■ I want rust prevention performance... *Please view the PDF of the technical document available for download. *If you would like a sample, please specify "sample request" in your inquiry.

This is an introduction to a development case of "continuous porous materials." 【 Required Performance 】 For marking chips used in positioning industrial and medical equipment, requirements included liquid absorption, durability, solvent resistance, and dimensional accuracy. 【 Development Results 】 Since the base material is originally PE, it exhibited excellent durability and solvent resistance. Regarding dimensional accuracy, the target was achieved through the selection of processing methods. *For more details, please contact us directly.