Yamahachi Chemical
Our porous materials have potential applications in many fields.
Here are some examples of development solutions and challenges we have taken on.
What is porous plastic? Porous materials have a three-dimensional network of pores, or cells, inside them. When the walls between adjacent cells are partially open, the material is called open cell. Air and liquids pass through it, while particles are trapped. Sponges, pumice stones, wood and paper are all open cell materials in everyday life. Open cell porous plastics use that structure for...
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Alcohol markers, also known as art markers or graphic markers, mainly used for illustration, sketching and design purposes which are popular among artists, illustrators and designers, and are classified as marker pens. These markers have reservoirs inside of their bodies filled with alcohol ink, which are drawn into the marker nibs by capillary action. 1. Kinds of nibs for Alcohol markers Nibs of...
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What is “Flash Stamp”? A flash stamp, also known as a pre-inked stamp, is a type of stamp that incorporates an ink pad within its construction. Unlike traditional stamps that require a separate ink pad, flash stamps have the ink reservoir built directly into the stamp itself or a foam die of the stamp already absorbed ink in itself. Imprint image is produced...
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These are case studies of self-inking marking pen tips for Lensmeter used in ophthalmology and other marking tips for Marking devices which are used in a wide range of fields. Special shapes, adequate hardness and durability were required. The porous tips had to absorb the special ink used by the customers and be capable of continuous marking on surfaces. Depending on the required...
Case studies
Our customer asked us to develop a porous component with a continuous protrusion shape that would readily absorb water. The component was to be used as part of a device to safely deliver a small current to non-planar surfaces. Our standard porous material is permeable and flexible, but is hydrophobic which was needed to be made hydrophilic. Conductive material were blended with the...
Case studies
This is a case study of the development of a porous tip that fits into pen applicators that deliver high viscosity liquids used in a variety of situations. We have developed a flexible porous tip with hollow to enable good pinpoint and uniform application of high viscosity liquids to curved and uneven surfaces. As our materials can be manufactured by injection moulding, it...
Case studies
