Yamahachi Chemical Co., LTD. Product Lineup

Are you struggling with issues like these? - Wanting sufficient moisture retention - Weak retention causing liquids to leak out - Fibers and resin particles falling off (contamination) - Needing chemical resistance

• plastic

"Adsorption and Wiping": Are you facing these issues? - Difficulty in wiping off oil and solvents effectively - Not adhering properly and leaving behind the dirt or liquid that was wiped - Fine particles of fibers or resins detaching from the adsorbent (contamination) - Looking for materials suitable for wiping fine areas

• plastic

Are you struggling with issues like these? - The application amount is too much, causing stickiness. - I want to reduce the application amount and keep costs down. - I want to decrease maintenance frequency by optimizing the application amount. - I want to apply only the necessary amount in specified areas. - I want to apply in specific patterns like a stamp. - I am looking for materials suitable for application work on fine details.

• plastic

A porous body is a general term for a substance that has many small holes (pores) inside it. While introducing an example of a porous body that exists around us, I will clearly explain the performance and characteristics of both sponge and Yamaha Hachi Porous as porous bodies. Yamaha Hachi Porous has functions such as flexibility, liquid absorption, and the ability to adsorb fine dirt.

• Other cleaning tools

What is coating? It is a technology aimed at "granting new functions, adhesion, and surface optimization," and the coating process in manufacturing is a crucial step that affects product quality. In the coating process within manufacturing, there are always challenges such as uneven application and dripping, which can lead to a decline in product quality and functionality. As a solution to these challenges, is the coating amount and method appropriate? Is there a need to aim for "micro-coating" that reduces the coating amount? Additionally, what are the methods and benefits?

• plastic

From mold design to material blending and the molding and processing of porous materials! With a consistent in-house support system, we provide the molding and processing of porous materials that our customers need. If you are looking for porous materials with flexibility, breathability, permeability, and low dust generation in special shapes, please contact us!

• plastic

A polyethylene-based porous sheet with characteristics such as flexibility, permeability, breathability, low dust generation, and water repellency. It can absorb liquids like oil, retain them, and be applied to objects, as well as function in liquid absorption. We can also accommodate surface processing and two-layer molding according to the customer's development needs. Basically, it is produced on a made-to-order basis. Please contact us for more details.

• plastic

Continuous porous roller material with a fine pore structure based on polyethylene! It features flexibility, permeability, and low dust generation, allowing liquids like oil to permeate. Ideal for coating applications! We provide optimal roll design and manufacturing tailored to customer development needs, including surface processing for precise application performance and special shapes or two-layer structures!

• plastic

Our company manufactures a continuous porous plastic called "Yamahachi Porous," which is characterized by its basic functions of liquid absorption, retention (storage and impregnation), and application (liquid supply). The standard material is hydrophobic and exhibits excellent functionality for absorbing, retaining, and applying inks and oils, allowing for optimal control of the application amount without dripping. It can also be optionally hydrophilized. We accommodate not only sheets and cylindrical shapes but also special shapes such as comb-like continuous protrusions used in hair care applications, as well as hollow shapes, which are difficult to achieve with conventional porous materials. Additionally, we can partially process the surface to impart the function of applying small amounts of liquid to objects in a patterned manner.

• plastic

We offer "OEM and ODM production services for roller stamps." We propose suitable roller stamps that match our customers' planned products and applications. This production service is for customers who only wish to have roll components, such as those who already have production bases. We provide parts to the factories designated by our customers. For roller stamp manufacturing, please consult Yamaha Chemical. 【Features】 ■ Supports the manufacturing of various types of roller stamps ■ Capable of producing clean designs with minimal seams, from thick lines to fine details ■ Roll sizes can be customized, starting from a minimum outer diameter of φ6mm ■ Depending on the application, adjustments to roll materials and inks are also possible *For more details, please refer to the PDF materials or feel free to contact us.

• Other contract services
• Other services
• Contract manufacturing

We offer "OEM and ODM production services for roller stamps." We will propose suitable roller stamps that match your planned products and applications. For roller stamp manufacturing, please consult Yamaha Chemical. 【Features】 ■ Production starting from 2,000 units (1,000 units x 2 designs OK!) ■ Three types of holders ■ Choice of ink and holder colors ■ Packaging options available 【Applications】 ■ Personal information protection security stamps ■ Decoration for paper products ■ Craft applications ■ Novelties ■ Marking on text (marker applications) *For more details, please refer to the PDF document or feel free to contact us.

• Other contract services
• Other services
• Contract manufacturing

This product is an environmentally friendly continuous porous material for stamp production that enables the manufacturing of permeable stamps using low-temperature processing machines. It uses polyethylene (PE) as the raw material, which has excellent durability and wear resistance. It is compatible with desktop permeable stamp manufacturing machines (flash processing machines) equipped with infrared lamps, allowing for surface processing at low temperatures. The continuous porous structure of the material holds ink firmly, making it suitable for high-resolution designs such as photographs for stamping. 【Features】 - Material with excellent durability and wear resistance - Capable of high-resolution stamping design processing - Surface processing possible with low-temperature machines - Compatible inks: oil-based pigment inks, solvent-based inks - Continuous porous structure holds ink securely - Clean stamping without smudging, without the need for a stamp pad *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials

At Yamaha Chemical, we offer a porous nib manufacturing service for marker pens. Our "porous nibs for markers" are characterized by a smooth texture similar to that of a brush pen, without issues such as tip cracking or fraying. They also possess excellent ink responsiveness, moderate elasticity, and durability. Using polyethylene as the base material, they exhibit solvent resistance and chemical resistance, demonstrating outstanding performance with various inks. 【Features】 ■ Ink responsiveness ■ Moderate elasticity ■ Solvent resistance ■ Use of polyethylene ■ Chemical resistance ■ Smooth texture *For more details, please refer to the PDF document or feel free to contact us.

• plastic

"Yamahachi Chemical Development Case Studies Vol.3" introduces development projects using Yamahachi Porous, our open-cell porous plastic. It covers 9 projects for machinery makers, measuring and analytical instrument makers, an overseas writing instrument maker and others, in the fields of cleaning, coating, liquid retention, absorption, stamping and writing. Each case is explained in two parts: the challenge and the result. The catalog also shows how Yamahachi Porous differs from ordinary sponge, and its 10 basic functions. * Please download the PDF to see the case studies.

• plastic

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.

• others

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.

• plastic

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.

• plastic

Introducing the porous material "Porous Chip," which features chip shapes suitable for applications such as the application of liquids/solvents and liquid absorption. Made from polyethylene as the base material, it is characterized by flexibility, breathability, permeability, collectability, hydrophobicity, and low dust generation (lint-free). It has functions for retaining liquids, solvents, oils, and inks (reservoir), liquid application, and liquid adsorption, making it usable as functional components for various applications. We provide suitable processing tailored to customer needs through a consistent production system. Manufacturing through injection molding and assembly processing onto fiber cores is also possible. 【Features】 ■ Permeability and breathability ■ Hydrophobic (can be made hydrophilic) ■ Flexibility (hardness can be adjusted) ■ Collectability ■ Chemical resistance ■ Low dust generation *For more details, please refer to the PDF document or feel free to contact us.

• plastic

We are a manufacturer of industrial porous materials that utilize "Yamahachi Porous"—a continuous porous plastic—to enable functions such as application, liquid absorption, and wiping. Leveraging our core manufacturing technology for "Yamahachi Porous" (a continuous porous material), we manufacture and sell products while also providing development support to our customers. We began by serving the stationery and stamping markets with products like porous pen tips, pre-inked stamps, and stamp materials. Today, we focus on industrial porous materials—such as porous sheets, rollers, tips, and sponge swabs—that utilize ten basic functions, including application, wiping, and liquid absorption. By combining these ten basic functions with seven proprietary processing technologies, we solve customer challenges and deliver optimal porous materials tailored to specific applications, shapes, and performance requirements. We also meet requirements that cannot be satisfied by standard products, thanks to our unique processing technologies and integrated production system.

• plastic