ESG Environmental Report

At TATSUTA, we are striving to develop new and improved environmentally-friendly products in order to
effectively reduce environmental impact Through the business activities of Tatsuta Environmental Analysis Center,
we also work to reduce substances that burden the environment.

  • Electric wire and cable business: Environmentally-friendly products

    Eco-friendly electric wire and cable

    When electric wires and cables are disposed of, their coatings mostly end up as industrial waste. In particular, there is concern over the impact on the environment of harmful substances released by vinyl chloride coatings when they are incinerated.
    Eco-friendly electric wires and cables boast the same level of fire resistance as conventional vinyl chloride-coated products but are environmentally-friendly, utilizing highly-recyclable coatings and containing no halogen elements, lead, and other heavy metals.

    • Features of environmentally-friendly products
      • Safe to dispose of by incineration There is no risk of harmful dioxins being emitted during incineration. They do not produce acid gases such as chlorine gas and do not corrode the incinerator.
      • Fire-resistant and low-fuming These products boast the same self-extinguishing properties as vinyl cable, and are flame-retardant. They also produce little smoke, helping to ensure visibility in the case of fire.
      • Recyclable These products can be recycled through material recycling or thermal recycling using heat energy generated through incineration.
      • Chemical-resistant The use of polyethylene-based coatings provides outstanding chemical-resistant properties.
    • Product Lineup
      • かるまげ™ (Karu Mage) (KM-CC) 600V fire-resistant flexible crosslinked polyethylene eco-friendly cable
        Photo of Karu Mage (KM-CC) 600V fire-resistant flexible crosslinked polyethylene eco-friendly cable

        With halogen-free and environmentally-friendly specifications, these electric wires and cables maintain a smoke density of 150 or less, and use highly-recyclable coatings.

        Features of かるまげ™ (Karu Mage) (KM-CC)
        1. Using 0.45mm element wires, KM-CC is extremely easy to handle and significantly enhances workability, particularly when wiring in narrow places.
        2. No substances under RoHS (10 substances) are intentionally included.
      • ネツタフ115™ (Netsu Tough 115) ((S) HKIV) special heat-resistant vinyl-insulated electric wire for electric devices
        Photo of Netsu Tough 115 ((S) HKIV) special heat-resistant vinyl-insulated electric wire for electric devices

        ネツタフ115™ (Netsu Tough 115) features insulating material with an increased heat-resistant temperature.
        It enables to make the size of electric wires smaller compared to previous products, leading to resource savings.

        Features of ネツタフ115™ (Netsu Tough 115) ((S) HKIV)
        1. With a high allowable current capacity, ネツタフ115™ (Netsu Tough 115) enables reductions in the size of conductor and amount of copper used.
        2. By utilizing a conductor of smaller size, it enables a reduction in the amount of insulation material used.
        3. As a result of 1. and 2. above, it facilitates the efficient use of wiring space.
        4. No substances under RoHS (10 substances) are intentionally included.
        “ネツタフ115” is a trademark of Tatsuta Electric Wire and Cable Co., Ltd., registered in Japan.
      • EM-TLFC110 eco-friendly fire-resistant flexible crosslinked polyethylene insulated electric wire, heat resistant to 110°C
        Photo of EM-TLFC110 eco-friendly fire-resistant flexible crosslinked polyethylene insulated electric wire, heat resistant to 110°C

        EM-TLFC110 is a flexible electric wire using highly-recyclable coating material. It has outstanding heat tolerance, with smaller sized electric wires than the IV or KIV, leading to resource savings.

        Features of EM-TLFC110
        1. EM-TLFC110 uses eco-friendly, fire-resistant, crosslinked polyethylene material.
        2. By making the size of conductor smaller, it enables a reduction in the amount of copper and insulation material used.
        3. As a result of 1. and 2. above, it facilitates the efficient use of wiring space.
        4. Box packaging enables storage space savings.
        5. No substances under RoHS (10 substances) are intentionally included.
      • GT-Lead high-durability lead wire for plating barrels
        Photo of GT-Lead high-durability lead wire for plating barrels

        GT-Lead uses a flex-type conductor and uses a special urethane in the protective layer to enhance durability, with the aim of saving resources.

        Features of GT-Lead
        1. More than twice as durable as previous products* due to the use of a special urethane in the protective layer (* compared in-house).
        2. Reduces production line stoppages to replace damaged lead lines, enabling productivity enhancements and total cost reductions.
        3. Flexibility has been improved through the use of a flexible-type conductor, resulting in higher workability.
        4. No substances under RoHS (10 substances) are intentionally included.
      • FIT Series

        The new FIT Series features products responding to diverse customer requests for NETSU Tough 115, TLFC and GT-Lead.
        Utilizing a small-diameter conductor to achieve both flexibility and formability, it is designed to save resources.

        Features of the FIT Series
        1. Use less coating material than previous products by achieving a smaller diameter.
        2. Wiring and terminal processing workability is improved.
      • New Slat Cable
        Photo of New Slat Cable

        Until now, “vinyl” has been the main material used in insulators for drop cables.
        The New Slat Cable uses environmentally-friendly “black crosslinked polyethylene” insulator instead, which contains no chlorine.

        Features of New Slat Cable
        1. New Slat Cable contains less vinyl material which may have a negative impact on the environment when incinerated.
        2. With enhanced weather-resistant characteristics when laid, the cable is more resilient against the effects of temperature changes, water, etc.
        3. Enhanced heat-resistance when applying electricity has enabled the cable to be down-sized.
      • ドコサンミハール™ (Doko San Miharu) (acid leakage location detection sensor)
        Photo of Doko San Miharu (acid leakage location detection sensor)

        Regular inspections of places that cannot be inspected visually are required under the Water Pollution Prevention Act. ドコサンミハール™ (Doko San Miharu) enables swift detection of the position of acid leakages, even for locations that cannot be seen.

        Features of ドコサンミハール™ (Doko San Miharu)
        1. Sulfuric acid, hydrochloric acid, and nitric acid—a diverse lineup for every application.
        2. Possible to be installed on existing equipment.
        3. Separate wiring for the power source. Can be jointed using a connector, facilitating easy laying and maintenance.
        4. Senses leaks in around four minutes. * When 98% concentration of sulfuric acid is dripping (25°C).
        5. Can be installed outside.
        “ドコサンミハール” is a trademark of Tatsuta Electric Wire and Cable Co., Ltd., registered in Japan.
  • Electronic materials & system equipment business: Environmentally-friendly products

    Electronic materials

    We develop our electronic materials with attention to environmental compatibility, which is epitomized by halogen-free, Restriction of the Use of Certain Hazardous Substances (RoHS), UL, and lead-free reflow soldering.

      • Enhanced environmental compatibility of electronic materials
        • Halogen-free Containing no halogens such as chlorine, there is no concern for these materials emitting dioxins and toxic gases when burned.
        • RoHS They do not contain the designated hazardous substances that have a negative impact on the environment and human body: lead, cadmium, mercury, hexavalent chromium, the designated bromine-based flame retardants polybrominated biphenyls (PBB) and polybrominated diphenyl ethers (PBDE), and four phthalates.
        • UL UL94 is a United States testing standard. VTM-0 tests the vertical flammability of thin plastics, and V-0 tests vertical flammability. Both tests are graded at three levels, V-0 to V-2, from least to most flammable. The tests assess features such as whether the material will suppress the spread of flame and help to extinguish the fire.
        • Lead-free reflow soldering Lead-free solder is a vital part of RoHS compliance for electronic circuits. While soldering to mount components onto the printed circuit board is difficult through the mainstream reflow processing, this material is compatible with lead-free soldering.
      • Product Lineup
      • SF-PC8900-C high-frequency-compatible thin EMI shielding film
        Photo of SF-PC8900-C high-frequency-compatible thin EMI shielding film

        By retaining the structure of the previous model’s thin electromagnetic interference (EMI) shielding film (SF-PC5900-C) while increasing the thickness of the shield layer, we achieved the productization of a thin EMI shielding film that enhances electric characteristics in the high-frequency range.
        This range is vital for 5G communications, which are forecast to spread extensively in the future In addition to providing high-performance shielding in the high-frequency range, SFPC8900-C also demonstrates higher performance than previous products in terms of mechanical characteristics such as crease performance. It is thus considered increasingly for a possible use in flexible printed circuit boards for components of displays, camera modules, hinges, etc.
        In terms of the environment, SF-PC8900-C has attained UL94 flammability class VTM-0, while also being halogen-free. It also complies with RoHS.

        Features of SF-PC8900-C
        1. Halogen-free, and attained UL94 VTM-0. Also complies with RoHS.
        2. With a total thickness of 8 µm, it achieves high-performance shielding in the high-frequency range.
        3. Outstanding mechanical characteristics such as crease performance.
  • Equipment wire and cable business: Environmentally-friendly products

    Thin-diameter KORIKI™ high-strength cables for FA robots
    Photo of Thin-diameter KORIKI™ high-strength cables for FA robots

    We have been providing high-strength cables that use hightensile alloy conductors, to enable usage in harsh environments where complicated movement is required, such as in industrial robots and FA equipment. We are also developing thin-diameter KORIKI™ high-strength cables, suited for use in space-saving wiring applications such as equipment miniaturization, robots with limited wiring space, cableveyor, etc.
    This enables wiring space reductions, flexible wiring and layout while retaining the outstanding flex durability of previous products.
    These features facilitate weight reductions, miniaturization and space savings in robots and other applications, and also contribute to resource savings through longer product life, which is a characteristic of high-strength cables. “KORIKI” are trademarks of Tatsuta Electric Wire and Cable Co., Ltd., registered in Japan.

    Features of thin-diameter high-strength cables
    • Maintain superior flex and twist durability with slim body and surprising durability Flex and twist durability are the same or higher than previous high-strength cables (based on in-house test data).
    • Excellent terminal workability Workability of connector and wire harness assemblies improved by limiting use of filler and binding wherever possible inside the cable. This also leads to less fabrication waste.
    • Superior space-saving properties Thinner cable made possible by reducing the outer diameter by approximately 30% and the cross-section area by approximately 50% (compared to our previous products).
  • Establishment of an eco-friendly production method for rubber cabtire cables
    Photo of rubber cabtire cables

    Chugoku Electric Wire & Cable traditionally relied on the lead vulcanization method whereby rubber cabtire cables are sheathed with lead and the sheaths vulcanized. Recently, however, the company has switched to a lead-free vulcanization method. The new production method not using lead enables the company to reduce environmental risks and shorten lead times.

    • Lower environmental risks
      The lead-free vulcanization method allows for the production of eco-friendly rubber cabtire cables that fully comply with RoHS and REACH regulations.
    • Shorter lead times
      The tandem extrusion of rubber sheaths and lead-free vulcanization material, among other improvements, leads to shorter production processes and thereby shorter lead times.
    Comparison image of The lead-free vulcanization method with conventional one
  • Tatsuta Environmental Analysis Center’s environmental analysis business

    • Dioxins analysis
      Appearance of dioxins analysis
      Providing highly-reliable analysis through
      strict quality control in as little as two business days

      Dioxins are extremely toxic and harmful substances. A precision control system and advanced technical capabilities for ultra-trace analysis are required to analyze them.
      At TATSUTA, we have strived to enhance our capabilities with a full range of the latest devices, and can complete an analysis in as little as two days.

    • Working environment measurement
      Apearance of working environment measurement
      Providing one-stop services for integrated working environment management from regular measurement to workplace improvement proposals

      For indoor workplaces that manufacture or handle harmful substances subject to laws or regulations such as the Industrial Safety and Health Act, it is necessary to implement regular measurement and evaluation of the working environment, and appropriate improvements based on the results. At TATSUTA, we are engaged in working environment management together with our customers that ranges from evaluation, including measurement of the concentration of welding fumes, to improvement of working environments.

    • PCB analysis
      Apearance of PCB analysis
      Providing broad-scope PCB analysis based on a proven track record, with the capability to analyze trace PCBs in as little as one business day

      In addition to trace polychlorinated biphenyls (PCBs) in transformer oil, insulation oil, pressure sensitive paper and film, we also have the capability to analyze PCBs in water, air and soil, as well as cloth, tools and containers.

    • Soil contamination investigation
      Photo of machines for soil contamination investigation
      Fully utilizing our accumulated technologies, experience and expertise to accurately
      determine levels of contamination with heavy metals, volatile organic compounds, etc.

      Investigations based on the Soil Contamination Countermeasures Act are required for redevelopment or land sales involving former plant sites, etc. As a certified Designated Investigation Institution, we collect accurate data on factors such as the concentration and distribution of contaminating substances, and evaluate the degree of contamination, playing an important role in the effective use of land.

    • Analysis of products and materials
      Photo of machines for analysis of products and materials
      Responding to diverse needs through services including the analysis of substances that impact the environment, such as the RoHS substances, and materials composition analysis

      We make full use of multiple analysis techniques and insights gained through extensive experience, including morphological observation, composition analysis, and evaluation of material characteristics, to solve a range of issues related to products, components, and materials.

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