クレハトレーディング List of Products and Services

Kureha Trading has started handling the "C/C Composite Heater," a furnace heater made from a carbon matrix reinforced with carbon fibers. The "C/C Composite Heater" possesses characteristics derived from carbon fibers, such as high strength and heating/cooling properties, while also achieving processability similar to graphite heaters. It can be designed and processed to match the shape and resistance values of the furnace. 【Recommended for those with the following concerns】 ◎ Experiencing issues with temperature unevenness and brittleness due to heater shape and material ◎ Unable to find alternatives due to manufacturer consolidation or discontinuation ◎ Heaters getting damaged from impact during installation ◎ Wanting to reduce heating and cooling times *This product is in development. For more details, please refer to the materials available for download in the catalog. If you would like a material sample, please feel free to contact us.

• Other heaters

"DOUBLECURE 184 (DC184)" is a molecular cleavage type, α-hydroxyalkylphenone non-yellowing type photopolymerization initiator (UV photosensitizer). It appears as a crystalline powder ranging from white to off-white and is soluble in acetone, toluene, methyl acrylate, ethyl acetate, ethanol, and others. The chemical name is "1-hydroxycyclohexylphenyl ketone," with a melting point of 46-50°C. The packaging size is 20kg. 【Basic Information】 ■ Chemical Name: 1-Hydroxycyclohexylphenyl ketone ■ CAS: 947-19-3 ■ Appearance: Crystalline powder from white to off-white ■ Melting Point: 46-50°C ■ Solubility: Acetone, toluene, methyl acrylate, ethyl acetate, ethanol, etc. ■ Packaging Size: 20kg *For more details, please refer to the PDF document or feel free to contact us.

• Coating Agent

"DC TPO" is a photoradical polymerization initiator effective for both acrylic resin and unsaturated polyester systems. It is a monoacylphosphine oxide with excellent deep curing properties. It features a main absorption band of 360-400 nm and outstanding deep curing capabilities. Additionally, we can introduce other grades similar to TPO. Please contact us if you are interested. 【Specifications (partial)】 ■ Molecular weight: 348 ■ CAS: 75980-60-8 ■ Systematic name: Diphenyl 2,4,6-trimethylbenzoylphosphine oxide ■ Other name: DCTPO *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

"DOBLECURE 184" is a light radical polymerization initiator (UV photosensitizer) with high curing performance and storage stability. It is manufactured at two locations in China and Taiwan. Free samples are available upon request. Price negotiations are welcome. It is a light radical polymerization, intramolecular cleavage type, α-hydroxyalkylphenone non-yellowing type. The recommended formulation amount is 0.5 to 5% w/w, and it can be used in UV coatings, UV adhesives, photoresist dry films, and clear coatings for paper, flooring materials, metals, plastics, and wood. 【Features】 ■ Light radical polymerization, intramolecular cleavage type, α-hydroxyalkylphenone non-yellowing type ■ High curing performance and storage stability ■ Recommended formulation amount: 0.5 to 5% w/w *For more details, please refer to the related links or feel free to contact us.

• Coating Agent

At Double Bond Chemical (DBC), we offer a variety of photopolymerization initiators. As a guideline for selecting which grade to choose, we have included a list of the wavelengths of light absorbed by each initiator in our catalog. We hope you find it useful. If you have any questions about the catalog or anything else, please feel free to contact the Bond Material Department at Kureha Trading Co., Ltd. at any time. [Featured Products] ■DC 173 ■DC 184 ■DC 1819 ■DC DETX ■DC EMK ■DC TPO *For more details, please refer to the PDF materials or feel free to contact us.

• Chemicals

This document introduces "flexible sensors," which are ultra-thin, lightweight, and flexible, contributing to the miniaturization of various products. In addition to the mechanism, you can easily check examples of applications such as motion, vibration, and strain detection. 【Recommended for】 ◎ Those considering sensors to be incorporated into measuring instruments, automotive components, medical devices, manufacturing equipment, etc. ◎ Those looking for sensors in free shapes. ◎ Those interested in piezo sensors, piezo films, and polymer piezoelectric films. *For companies considering the use of flexible sensors, we also provide product samples. Please feel free to contact us.

• Sensors

The flexible sensors we handle have numerous advantages! - High flexibility - Ultra-thin - Ultra-lightweight - No power supply needed - Easily customizable, etc. This is a document that clearly introduces photos and applications of such flexible sensors. Recently, miniaturization and lightweighting of products have become essential challenges... This may help solve those challenges. *If you are interested, please feel free to download and take a look!

• Sensors

Piezo sensors are used in various applications due to their characteristics, and I would like to introduce one of them, the "space dust sensor." What mission did the piezo sensor embark on into space? What is piezo? What is a piezo sensor? If you are interested, please feel free to download and take a look!

• Sensors
• Piezoelectric Devices
• probe

It looks like just a transparent film. This film, which is thinner than paper, becomes a speaker. You can design it freely in various shapes, taking advantage of its high flexibility, such as curving it to any size, allowing for integration with various interiors. The essential food wrap "Kurewrap" is a product developed by the Kureha Group, and the "transparent film speaker" introduced on this page also features a special film with piezoelectric properties developed by the same group. Would you like to experience the future of transparent film speakers, born from the technology cultivated in the development and manufacturing of Kurewrap? If you are interested, please feel free to reach out!

• Piezoelectric Devices
• Other polymer materials
• Sound Parts

"DC TPO" is a photoradical polymerization initiator effective for both acrylic resin and unsaturated polyester systems. It is a monoacylphosphine oxide that possesses excellent deep curing properties. It features a main absorption band of 360-400nm and excellent deep curing performance. Additionally, we can introduce other grades similar to TPO. Please contact us if you are interested. 【Specifications (partial)】 ■ Molecular weight: 348 ■ CAS: 75980-60-8 ■ Systematic name: Diphenyl 2,4,6-trimethylbenzoylphosphine oxide ■ Other name: DCTPO *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

The "SP series" is a low-noise, high-sensitivity piezo film sensor. It generates voltage in response to minute changes such as compression and elongation (strain). It is suitable for monitoring biological signals such as body movements, as well as for monitoring vibrations, impacts, dynamic strain, and dynamic loads. 【Features】 ■ Shielded structure ■ Flexible with a flexible film piezoelectric material ■ Low noise and high sensitivity ■ Uses piezo film (PVDF) as the piezoelectric element ■ Laminated with adhesive PET film of 125μm on one side ■ The electrode part without lamination is coated with a thin coating material, excluding the terminal part *For more details, please refer to the PDF document or feel free to contact us.

• Sensors
• Piezoelectric Devices
• Other measurement, recording and measuring instruments

The "MP series" is a very small product among piezo film sensors. It is suitable for monitoring biological signals such as body movements, as well as for monitoring vibrations, impacts, dynamic strains, and dynamic loads. 【Features】 ■ Shielded structure ■ Designed for easy use in research applications ■ Extremely small size ■ Uses piezo film (PVDF) as the piezoelectric element *For more details, please refer to the PDF materials or feel free to contact us.

• Sensors
• Other polymer materials
• Piezoelectric Devices

The "LP series" is a piezo film sensor that can accommodate large areas, which is difficult with ceramics, and has a wide detection area. Our company has successfully commercialized piezo film sensors into products such as "hydrophones," "ultrasonic probes," "accelerometers," "acoustic pickups," and "pressure sensors." One of our strengths is the expertise gained from years of handling piezo film, allowing us to excel in circuit design and sensorization for complex shapes. Our piezo film sensors have a solid track record and are used in a variety of fields, including medical device manufacturers, construction machinery, and automotive manufacturers. They are suitable for monitoring dynamic loads such as body movement and other biological signals, as well as vibrations, impacts, and dynamic strain. 【Features】 ■ Shielded structure ■ Flexible with a flexible film piezoelectric material ■ Wide detection area ■ Uses piezo film (PVDF) for the piezoelectric element ■ Capable of handling large areas that are difficult with ceramics *For more details, please refer to the PDF document or feel free to contact us.

• Sensors
• Piezoelectric Devices
• Other polymer materials

The "PF Series" is a piezo film coated with Ag electrodes on both sides. You can choose from four different thicknesses and cut it freely for use. It can be used for initial experimental purposes, as well as for monitoring vibrations, shocks, dynamic strain, etc., and for large sensors. Please download the catalog to check the size of the electrode parts. 【Features】 ■ Available in four different thicknesses ■ Coated with Ag electrodes on both sides ■ Can be freely cut for use ■ Compliant with RoHS directives *For more details, please refer to the PDF materials or feel free to contact us.

• Other polymer materials
• Piezoelectric Devices
• Sensors

I've heard of "piezo film" and "piezo film sensor," but I'm not really sure what they are. I'd like to try using them, but how heat-resistant are they? What kind of forces can they detect? Dr. Piezo will answer the frequently asked questions we receive. If you're interested, please take a look!

• Sensors
• Piezoelectric Devices
• Other polymer materials

The "TP series" is a flexible piezo film sensor made of flexible film piezoelectric material. It is a general-purpose type with a single-layer structure and lead wires. It is suitable for monitoring biological signals such as body movements, as well as monitoring vibrations, impacts, and dynamic strains. Additionally, it uses piezo film (PVDF) as the piezoelectric element, which generates voltage in response to small changes such as compression and elongation (strain). 【Features】 ■ Compliant with RoHS directive ■ Single-layer structure ■ Flexible with flexible film piezoelectric material ■ General-purpose type with lead wires *For more details, please refer to the PDF materials or feel free to contact us.

• Sensors
• Piezoelectric Devices
• Other polymer materials

This document introduces the acoustic characteristics of a hydrophone using polymer piezoelectric materials. It clearly presents measurements of receiving sensitivity, as well as comparisons between theoretical and actual values. Please feel free to download and take a look. 【Contents】 ■Introduction ■Measurement of Receiving Sensitivity ■Estimation of Receiving Sensitivity Characteristics ■Comparison with Measured Values ■Conclusion

• Acoustic Analysis
• Other polymer materials
• Piezoelectric Devices

This document introduces the frequency characteristics of a speaker with a cylindrical vibrating surface using polymer piezoelectric materials. It includes numerous diagrams covering the cylindrical speaker system and its circumferential frequency characteristics, as well as the frequency measurement system and the frequency characteristics of the cylindrical speaker. Please feel free to download and take a look. 【Contents】 ■ Introduction ■ Experiment ■ Results and Discussion ■ Acknowledgments ■ References *For more details, please refer to the PDF document or feel free to contact us.

• Acoustic Analysis
• Other polymer materials
• Piezoelectric Devices

This document provides a clear introduction to the receiving sensitivity of cylindrical hydrophones using PVDF piezoelectric materials. It includes experimental results along with diagrams of the sample configuration, acoustic sensitivity measurement system, and frequency characteristics of the cylindrical hydrophone. Please feel free to download and take a look. [Contents] ■ Introduction ■ Sample Configuration ■ Results ■ Future Directions

• Acoustic Analysis
• Other polymer materials

This document introduces the acoustic characteristics of a cylindrical hydrophone using PVDF piezoelectric materials. It explains the behavior of the rubber material inside the cylinder, as well as the materials used in this sample and the results of acoustic sensitivity measurements, using figures and tables. Please be sure to download the PDF and take a look. 【Contents】 ■Introduction ■Sample ■Acoustic Sensitivity Measurement Results ■Future Work

• Acoustic Analysis
• Other polymer materials
• Piezoelectric Devices

This document introduces the acoustic characteristics of a hydrophone using PVDF piezoelectric materials. It explains various aspects such as the element configuration and the structure of the hydrophone, as well as the measured frequency characteristics of the receiving sensitivity, using various formulas and diagrams. The document is available for distribution. Please feel free to download and take a look. 【Contents】 ■Introduction ■Element configuration and structure of the hydrophone ■Measured frequency characteristics of the receiving sensitivity ■Future prospects

• Acoustic Analysis
• Other polymer materials
• Piezoelectric Devices

This document introduces the acoustic sensitivity of hydrophones using polymer piezoelectric materials. It includes explanations of the element configuration of hydrophones and the impedance conversion circuit, as well as the hydrostatic sensitivity measurement method and the frequency characteristics of hydrostatic sensitivity and acoustic sensitivity, presented with figures and tables. We are offering this document for download, so please feel free to download and review it. [Contents] ■ Introduction ■ About Hydrophones ■ Sound Pressure Sensitivity ■ Conclusion *For more details, please refer to the PDF document or feel free to contact us.

• Acoustic Analysis
• Other polymer materials
• Piezoelectric Devices

This is a document explaining the value of d33 and the Poisson's ratio of PVDF piezoelectric materials (piezo films) using illustrations. It is filled with useful information such as sample and lamination images, as well as methods for reducing binding forces. 【Contents】 ■Introduction ■Experiment ■Future Directions

• Sensors
• Other electronic parts
• Other measurement, recording and measuring instruments

This is a document explaining the true value of d33 for PVDF piezoelectric materials (piezo films) along with the details of the actual experiments. Please feel free to download and take a look. 【Contents】 ●Introduction ●Experiments ●Future

• Sensors
• Other polymer materials
• probe

This document presents the frequency characteristics and sound radiation mechanisms of a speaker with a cylindrical vibrating surface using polymer piezoelectrics. From the details of the samples, various experiments and discussions, including the wave function of the breathing cylinder and the motion of the surface of the breathing cylinder, are clearly introduced using diagrams and tables. Please feel free to download and take a look. 【Contents】 ■Introduction ■Experiments and Discussions ■Future Directions *For more details, please refer to the PDF document or feel free to contact us.

• Acoustic Analysis
• Other polymer materials

The MS-10 is a speaker system that uses polymer epoxy film, allowing you to perceive a clear sound even within a soft tonal quality. When electricity is applied to the piezoelectric film, it expands and contracts repeatedly, transforming into a breathing motion of air, creating a sound unique to polymers. Additionally, we also offer the "HPS-T1," which enhances sound quality when combined with other speakers. 【Specifications】 ■ Built-in amplifier: 10W ■ Connection terminal: φ3.5mm stereo mini jack ■ Maximum output: 20W (10W×2) ■ Amplifier input impedance: 9kΩ ■ Playback frequency: 150Hz–24KHz ■ External dimensions (mm): W87×H203×D200 ■ Weight: 1.9kg (with amplifier) 1.8kg ■ Bluetooth standard: Bluetooth v3.0 class2 *For more details, please refer to the PDF document or feel free to contact us.

• Other office supplies

This document presents the receiving sensitivity of cylindrical hydrophones using PVDF piezoelectric materials. In the section on the structure and sensitivity of cylindrical hydrophones, we introduce the results and future challenges. Explanations are provided using easy-to-understand diagrams and charts. Please feel free to download and take a look. 【Contents】 ■Introduction ■Structure and Sensitivity of Cylindrical Hydrophones ■Future Directions

• Acoustic Analysis
• Other polymer materials
• Sensors

This document introduces the receiving sensitivity of a cylindrical hydrophone using PVDF piezoelectric materials. It provides a clear explanation using various formulas and diagrams, starting with the sample configuration, theoretical receiving sensitivity, and acoustic sensitivity of the cylindrical element! Please feel free to download and take a look. 【Contents】 ■Introduction ■Sample Configuration ■Receiving Sensitivity Estimation ■Results ■Future Work *For more details, please refer to the PDF document or feel free to contact us.

• Acoustic Analysis
• Other polymer materials
• Sensors

This document introduces the influence of film thickness on the frequency characteristics of a speaker with a cylindrical vibrating surface using polymer piezoelectric materials. It explains various measurement results and discussions, including peaks and dips, the effects of transformers, and frequency characteristics, using figures and tables. Please feel free to download and take a look. 【Contents】 ■Introduction ■Experiments and Discussion ■Future Directions *For more details, please refer to the PDF document or feel free to contact us.

• Time-frequency measurements
• Other polymer materials
• Sensors

Introducing the "Piezo Film Sensor." It uses a polymer piezo film with piezoelectric elements to generate voltage in response to small changes such as compression and elongation. It is suitable for monitoring biological signals like body movements and dynamic loads. Additionally, we offer a lineup including the general-purpose "TP series" with lead wires, the shielded "SP series," the wide detection area "LP series," and the ultra-small "MP series." 【Features】 ■ Compliant with RoHS directive ■ Generates voltage in response to small changes such as compression and elongation (strain) ■ Uses piezo film (PVDF) as the piezoelectric element *For more details, please refer to the PDF materials or feel free to contact us.

• Sensors
• Other polymer materials
• Other measurement, recording and measuring instruments

This document introduces the characteristics of acceleration sensors using polymer piezoelectric materials. It includes the sensitivity of acceleration sensors using piezoelectric materials, as well as the design concepts for thin-type velocity sensors. Explanations are provided using diagrams and charts. We are offering this technical document, so please feel free to download and review it. [Contents] ■ Introduction ■ Sensitivity of acceleration sensors using piezoelectric materials ■ Design concepts for thin-type velocity sensors ■ Results ■ Conclusion *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials
• Sensors
• Piezoelectric Devices

This document introduces the characteristics of an accelerometer using polymer piezoelectric materials. It includes diagrams and photos detailing the sensitivity of the push-pull structure accelerometer and the specifications of the push-pull type accelerometer. Technical materials are available for distribution. Please feel free to download and take a look. 【Contents】 ■Introduction ■Sensitivity of the Push-Pull Structure Accelerometer ■Specifications of the Push-Pull Type Accelerometer ■Results ■Conclusion *For more details, please refer to the PDF document or feel free to contact us.

• Acoustic Analysis
• Other polymer materials
• Piezoelectric Devices

Our company offers "piezo film sensors" that can be used for monitoring biological signals such as body movement, as well as for monitoring vibrations, shocks, dynamic strain, and dynamic loads. We have successfully developed piezo film sensors into products such as "hydrophones," "ultrasonic probes," "accelerometers," "acoustic pickups," and "pressure sensors." Our expertise, built from years of experience with piezo films, allows us to excel in sensorization of complex shapes and circuit design tailored to the sensors. Our piezo film sensors have a proven track record! They are used in a wide variety of applications, including medical device manufacturers, construction machinery, and automotive manufacturers. They are suitable for monitoring biological signals like body movement, as well as for monitoring vibrations, shocks, dynamic strain, and dynamic loads. *For more details, please download the PDF or feel free to contact us.*

• Sensors
• Piezoelectric Devices
• probe

We would like to introduce our piezo film, the "PF Series A5." It is coated with Ag electrodes on both sides. It can be used for initial experimental purposes as well as for monitoring vibrations, impacts, dynamic strain, and more. We offer four different thicknesses. It is a perfect size for those who want to try it out and can be freely cut to your desired dimensions. Please download the catalog to check the electrode area. 【Features】 ■ Coated with Ag electrodes on both sides ■ Can be freely cut for use ■ Suitable for initial experimental purposes ■ For monitoring vibrations, impacts, dynamic strain, etc. ■ Available in four different thicknesses

• Other polymer materials
• plastic
• Sensors

Regarding the "Piezo Film" handled by Elmech Electronic Industry Co., Ltd., we introduced the characteristic of "piezoelectricity" in the basic edition. In this sequel, we will clearly present examples of "what it can actually be used for." Please download and take a look. [Contents] ■ What can be done with piezo film? ■ What can be achieved by detecting acceleration? ■ Examples of piezo film sensor prototypes (with photos)

• Other polymer materials
• Sensors
• Sensors

This document introduces the measurement method for the d33 of PVDF piezoelectric materials (piezo films). It explains the measurements and results using deposited films with different piezoelectric constants as experimental samples. For more details, please download and take a look. 【Contents】 ●Introduction ●Experiment ●Future

• Piezoelectric Devices
• Sensors
• Other polymer materials

A piezo sensor is a film-type sensor developed using piezo film (polymer piezoelectric film) that generates electric charge when mechanically or thermally stimulated. Since it is a film, it is very thin and flexible! It can be processed into any shape. But what kind of head amplifier circuit should be used? Dr. Piezo will answer such questions. [Document Contents] - Example of a piezo sensor head amplifier circuit Please check the document for more detailed information.

• Piezoelectric Devices
• Other polymer materials
• Sensors

A piezo sensor is a sensor developed using piezoelectric films that generate electric charge when stimulated mechanically or thermally. We are pleased to share the electrical characteristics graph of such piezo sensors! [Content of the document] - Linearity concerning load - Temperature characteristics (capacitance and charge sensitivity) Please download the document for more detailed information.

• Piezoelectric Devices
• Other polymer materials
• Sensors

Piezo films generate electric charge when stimulated mechanically or thermally; they are <polymer piezoelectric films>. What kind of material properties do they have? Please check the materials for detailed information. [Contents] - Piezoelectric constant - Pyroelectric coefficient - Relative permittivity - Elastic modulus - Specific heat capacity at constant volume

• Piezoelectric Devices
• Sensors
• probe

At Kureha Trading, we listen to your questions and concerns regarding the blades and plates of meat choppers (grinders/mincers). 【Do you have any of these issues?】 ◆ I want to develop a new product, but I don't know what parts to use. ◆ I'm struggling with reduced losses due to metal foreign matter contamination. 【Main Features】 ◆ Assistance in selecting parts tailored to the product you want to develop. ◆ Maintenance (grinding) services available through partner factories. ◆ Direct import of parts from manufacturers delivered via the shortest route. During consultations, we will provide tips for reducing the risk of foreign matter contamination. *We are currently offering a free selection guide! For more details, please download the PDF. The first 20 applicants will receive a free trial grinding set. Feel free to contact us for more information.

• Other machine elements

Kureha Trading Co., Ltd. is the Japanese distributor for Visko Teepak and sells the cellulose casing "Winnie Pack." This cellulose casing is used for skinless sausages and smoked cheese. We also have some specifications in stock domestically. 【Features】 - Excellent smoke permeability, resulting in products with sufficient aroma - Good moldability, allowing for uniform product finishing - Compatible with high-speed automatic filling machines - Reduces loss by minimizing twists, leading to improved yield - Accommodates a wide range of sizes from mini salami to frankfurters *For more details, please refer to the PDF document or feel free to contact us.

• Other polymer materials

Kureha Trading Co., Ltd. handles parts for chopper mincer grinders. We offer a lineup including three-hole plates, various sizes of hole plates, cross knives, and ring knives. We directly import parts from overseas manufacturers and sell them directly to domestic customers. 【Partial Lineup】 ■ Three-hole plate ■ Five-hole plate ■ Various sizes of hole plates ■ Deboning plates ■ Cross knives *For more details, please refer to the PDF document or feel free to contact us.

• cutter

At Kureha Trading Co., Ltd., we handle cutting knives for sausages and fish paste products. People often ask, "Is there really a company that only sells knives?!" We import directly from specialized knife manufacturers in Europe for resale. Additionally, we offer sharpening services at a factory dedicated to food processing knives, operated by craftsmen who are well-versed in optimal blade angles and shapes. We can recommend knives suitable for your cutter machine and also share know-how for safe operation. 【Features】 ■ Comprehensive after-sales service ■ Sharpening at a dedicated factory ■ Recommendations for knives suitable for your cutter machine ■ Sharing of safe operation know-how *For more details, please refer to the PDF document or feel free to contact us.

• cutter

The "cutter knife" is a product for livestock processing machinery and fishery processing machinery. We directly import and deliver various blades for food processing machines, such as chopper plates and chopper knives, from manufacturers. Our after-sales service is comprehensive, and we also offer sharpening at our dedicated factory. Please feel free to consult us when you need assistance. 【Features】 ■ Comprehensive after-sales service ■ Direct import from manufacturers ■ Comprehensive service system with sharpening and diagnostics using authentic sharpening techniques ■ Water-cooled sharpening based on traditional European methods *For more details, please refer to the PDF materials or feel free to contact us.

• cutter

We provide total support related to furnace materials to our customers through a mutually beneficial network in the heat treatment field, based on our extensive sales track record of Kureha molded insulation materials. We can procure various types of furnace materials from multiple suppliers both domestically and internationally. For customers considering maintenance of their equipment, we offer a one-stop service from the sale of furnace materials to after-sales service (maintenance) for the equipment. Samples can be provided as needed. Please feel free to contact us. 【Features】 ■ Procurement of various furnace materials from multiple suppliers both domestically and internationally ■ One-stop service from the sale of furnace materials to after-sales service for equipment ■ Samples can be provided as needed *For detailed specifications, please download the catalog. Feel free to contact us.

• Other machine elements