Accelerating LIB Separator Air Permeability Measurement | Improving Quality Control Efficiency Through Coordination Across Oken-Type Air Permeability Testers × China Bases・Overseas Distributors

Item	Content
Primary Application	Air permeability measurement of LIB separator films (Quality Control)
Measurement Method	Oken-type
Main Measurement Targets	LIB separator sheets/films, paper, non-woven fabric, high-functional films
Features	Significant throughput improvement compared to conventional methods
Coordinating Bases	Established a maintenance and calibration network via our Shanghai Base + overseas distributors
Related Markets	EV/storage batteries, separator film factories (China, Korea, Southeast Asia, Europe and the Americas)

Temperature-Dependent Sheet HUMOFIT® | Reducing the Feeling of Pressure with F+BAND, a Fixation Band for Medical and Sports Applications

Balancing "rigidity at room temperature" and "flexibility at body temperature," which is difficult with conventional fixation materials—with F+BAND applying the temperature-dependent sheet HUMOFIT®, we have simultaneously achieved reduced tightness when worn and ensured breathability. This solution also looks toward horizontal expansion into the medical, sports, beauty, and wearable device fields. The Issue of "Tightness from Fixation Bands" Occurring in Medical and Sports Fields In medical and sports applications, there was a demand for a material that "fits the body without a feeling of pressure" as an alternative to fixation bands and bandages for arms. With existing materials, it is difficult to balance moldability and a snug fit.It was necessary to switch between hardness and softness depending on the situation, which was difficult to address with conventional fixation agents and tapes.● Scenarios where this becomes apparent: Improvement of existing products. Needs became apparent in situations such as exhibitions.● Main impacts: Discomfort when worn → lower continuous use rate, deterioration of workability in medical fields, and difficulty in differentiation from competitors. Why Existing Materials Do Not Fit: Physical Properties That Cannot Balance Room Temperature and Body Temperature The physical property limitations of existing fixation materials (plastics and rubber). They cannot balance rigidity at room temperature with flexibility at body temperature.● Grounds for identification: Interviews with existing clients and at exhibition booth displays. Countermeasures Attempted So Far and Their Limits Elastic rubber bands (feeling of tightness remains) and cast-type materials (heavy and difficult to handle).Based on these limitations, we adopted the following approach as a more fundamental solution. Solution Approach: HUMOFIT® Application × Die-Cut Shape Optimization × Perforating Process to Ensure Breathability Applying and developing the temperature-dependent sheet HUMOFIT®. Optimizing breathability and fit through material grade changes combined with die-cut shapes and perforating processes. STEP. 01 Material Grade Change Re-selecting the HUMOFIT® temperature-dependent sheet for medical applications STEP. 02 Die-Cut Shape and Size Adjustment Repeating evaluations with fixation band shapes STEP. 03 Perforating Process Ensuring breathability and suppressing stuffiness Fuji Chemi Trading's Supply System: Headquarters × Partner Manufacturers This solution is established through the division of roles among multiple bases:・Headquarters / Domestic Sales: Customer window and exhibition collaboration・Partner Manufacturers: Supply and physical property data of the HUMOFIT® sheet● Supply System: Prototyping response with multiple variations of shapes and sizes. Results of Implementation Achieved function and performance improvements. Tightness when worn has been reduced, improving the feeling of use in medical and sports fields.● KPI Candidates: Improvement in sensory evaluation of tightness / Extension of wearing time / Reduction of rashes and stuffiness at the wearing site.● Implementation Lead Time: Commercialized by repeating prototype evaluations of shapes and perforation layouts. Anticipated Ripple Effects and Horizontal Expansion The benefits of implementing this solution extend beyond solving the primary issues. Please utilize this as material for internal and management proposals.・Horizontal expansion into prosthetic devices, supporters, and bands for pets・HUMOFIT application into helmet linings, sports protectors, etc.・Development into beauty and wearable devices (such as sensors that adhere tightly using body temperature)・The message "Deforms with body temperature" has excellent compatibility with technical and health media Differences from Competitors: Why Fuji Chemi Trading is Chosen Trading companies dealing only in single rubber or resin items have thin application know-how for temperature-dependent materials. Fuji Chemi can propose "HUMOFIT material × cutting shape optimization × perforated breathability design" as a package proposal. Product Information & Specification Overview The main specifications of products with a proven track record can be selected from multiple grades depending on the application and required conditions. Representative specifications are as follows (please contact us for detailed specs). Specification (Brand)Specification (Brand)Thickness (mm)TypeProduct Width (mm)Product Length (mm)RemarksWhite Band0.35S (Standard) / H (Perforated)10–20050–800Material: OlefinTransparent Band (A11)0.4S (Standard) / H (Perforated)Same as aboveSame as aboveSame as above Utilization Methods and Operation Examples In actual operations, the following patterns are frequently adopted:・Evaluation Phase: Requirement hearing → Sample evaluation → Specification finalization・Pre-Mass Production Preparation: Division of roles across bases, specification standardization, and local startup・Mass Production Phase: Ensuring short delivery times and stable supply through our supply system・Horizontal Expansion: Supporting expansion into other bases and projects FAQ (Frequently Asked Questions) Is it possible to apply this to other medical devices and sports equipment? Horizontal expansion into prosthetic devices, supporters, sports protectors, etc., is possible. Can you also propose this for the beauty and wearable device fields? Application to beauty equipment, wearable sensors, and other purposes that tightly adhere using body temperature is possible. How do you ensure breathability? Breathability is ensured through perforating processes (H type). The size and layout of the holes can also be customized. Can the die-cut shape be customized? We can accommodate customization of die-cut shapes, sizes, and perforation layouts. Is it possible to request samples? We can accommodate sample supply. Please let us know your requirements. Proposals by Related Applications and Challenges ■ 100% Eco-Friendly Water-Absorbing + Deodorizing Bag (F+BAG ACE) | Entering General Goods and Disaster Prevention Markets with Biodegradable Non-Woven Fabric × Naturally Derived Water-Absorbing Polymer■ Local Procurement of Static Electricity Measures for OA Equipment in Vietnam | Selecting Static Elimination Brushes and Conductive Fibers Aligned with Manufacturer Design Philosophies■ Joint Development of Low-Contamination Release Separators (Zero Adhesive Residue) | Balancing Function and Quality Through Optimal Blending of Adhesives × Curing Agents

品質向上 x 歩留まり改善

固定バンドF+BAND

抜き加工・有孔加工

温度依存性シート HUMOFIT®

自社開発オリジナル製品

高機能材料 x 新規開発

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Multi-sourcing for BCP of Cable Noise Suppression Ferrite Cores | Balancing Equivalent Quality, Stable Supply, and Cost Reduction

Quality variation and supply anxiety due to dependency on a single supplier—by multi-sourcing ferrite cores for cable noise suppression, we achieved a stable supply and cost reduction simultaneously while ensuring equivalent quality. This is a standard scheme in fields where demand is growing due to the EV shift and 5G adoption.This solution is tailored for companies facing challenges in the stable procurement of EMC and noise countermeasure components, such as electric wire manufacturers, air conditioner manufacturers, and automotive equipment manufacturers. Simultaneous Challenges of "Defects/Complaints & BCP" Surface in Cable Noise Countermeasures For cable noise suppression ferrite cores, responding to defects/complaints and addressing BCP (multi-sourcing) were requested simultaneously.Dependency on a single supplier reached its limit in terms of both quality variation and risk.● Situations where it surfaces: The defect and complaint response phase.● Main impacts: Frequent complaints, production line stoppages, and the requirement to balance both quality stability and cost competitiveness. Why Dependency on a Single Supplier is Risky: Quality Variation and Prolonged Lead Times Procurement and supply chain factors (supply anxiety, lead times). Dependency on a single supplier.● Specific evidence/basis: Physical property comparison of existing materials, defect sample verification. Countermeasures Attempted So Far and Their Limitations Requesting quality improvements from the single supplier (reached its limit), and abruptly searching for alternative sources (unstable).Based on these limitations, we adopted the following approach as a more radical and fundamental solution. Solution Approach: Developing New Overseas Manufacturers × Parallel Supply Across 3 Sites × Iterative Prototype Evaluation By developing new products from overseas manufacturers and coordinating across 3 sites, we achieved both equivalent quality and stable supply, while also reducing costs. STEP. 01 Developing Overseas Suppliers Sourced ferrite cores with equivalent physical properties STEP. 02 Multi-Site Coordination Parallel supply across China, Thailand, and Vietnam STEP. 03 Iterative Prototyping and Evaluation Confirmation of equivalent quality Fuji Chemi Trading's Supply Network: Headquarters × Shanghai × Thailand × Vietnam This solution is made possible through the division of roles among multiple sites.・Headquarters / Domestic Sales: Customer window and quality control・Shanghai / Thailand / Vietnam: Supplier coordination, local customs clearance, and inventory● Supply Network: Multi-source supply / Inter-site flexibility / Local delivery. Results of Implementation Eliminated delivery troubles, stabilized quality, and achieved cost reductions.● KPI Candidates: Reduction in number of complaints / Zero delivery delays / Cost reduction.● Implementation Lead Time: Repeating prototypes and evaluations, then transitioning to mass production. Expected Ripple Effects and Horizontal Rollout The effects of implementing this solution extend beyond solving the primary challenge. Please also leverage this as material for internal proposals and presentations to executive management.・Rollout to general EMC countermeasure components (common mode chokes, shielding tapes, gaskets)・Cross-industry expansion from white goods to automotive EMC countermeasures・Perfect fit for the sharp increase in noise countermeasure demand driven by the EV shift・Creation of BCP content under the theme of "breaking away from single-supplier dependency" Difference from Competitors: Why Fuji Chemi Trading is Chosen Domestic independent trading companies tend to lag behind in implementing overseas multi-sourcing. Fuji Chemi can handle parallel procurement across 3 sites in China, Thailand, and Vietnam, lowering costs while ensuring equivalent quality. Product Information & Specification Overview The main specifications of our proven products can be selected from multiple grades depending on the application and requirements. Typical specifications are as follows (please contact us for detailed specifications). ItemSpecificationMain ApplicationFerrite core for cable noise suppression / EMC countermeasure componentsTarget IndustriesElectric wire / Air conditioners / Various equipment (White goods, automotive, etc.)Supply TypeMulti-source supply (Multiple manufacturers, multiple sites)SitesParallel supply across China (Shanghai) / Thailand / Vietnam sitesRelated FieldsCommon mode chokes / Shielding tapes / Gaskets, etc.Rollout ScenariosEV shift / 5G adoption / Automotive EMC countermeasures Utilization Methods & Operational Examples In actual operations, the following patterns are frequently adopted.・Evaluation Phase: Requirement hearing → Sample evaluation → Specification confirmation・Pre-Mass Production Preparation: Division of roles across sites, specification standardization, and local launch・Mass Production Phase: Ensuring short lead times and stable supply through our supply network・Horizontal Rollout: Supporting horizontal rollout to other sites and other projects FAQ (Frequently Asked Questions) How do you ensure quality in multi-sourcing? We ensure equivalent quality by repeating physical property comparisons and prototype evaluations for each manufacturer's product before proceeding with parallel supply. Is it possible to propose general EMC countermeasure components? Yes, we can propose general EMC countermeasure components, including common mode chokes, shielding tapes, and gaskets. Is it possible to expand into the EV and automotive sectors? Yes, we can support the growing demand for noise countermeasures driven by the EV shift. We also have a proven track record in automotive EMC countermeasures. Is it possible to use your services in combination with existing domestic suppliers? Yes, it is possible. By using a dual-sourcing scheme that combines domestic and overseas products, you can also leverage it as a bargaining chip for price negotiations. What is the extent of the cost reduction? Although it depends on the specific project, there are many cases where cost reductions can be expected by strengthening your bargaining power through multi-sourcing. Proposals by Related Application and Challenge ■ Overseas Procurement of PET Film for Power Cables + Domestic Slitting | Cost Reduction with Equivalent Quality Guaranteed■ BCP-Compliant Procurement of FRP Gratings for Industrial Plants | Achieving Mass Production via Overseas Supplier Development and Quality Replication■ Adoption of Chinese-made PI Tape for Heat-Resistant Process Films | Cost Optimization through Just-Spec Specifications

BCP x 安定供給

コストダウン

タイ拠点

ノイズ対策部材

フェライトコア

ベトナム拠点

上海拠点

品質向上 x 歩留まり改善

高機能材料

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Improving Foreign Object Removal Rate in Liquid Bath Cleaning of Communication Equipment Parts | Joint Proposal of High-Performance Filter and Local Evaluation in Vietnam

Defects caused by foreign objects occurring in the liquid bath cleaning process of communication equipment parts directly impact downstream yields and complaints. We offer an upgrade to high-performance filters with high collection accuracy and long lifespan, combined with local prototyping and evaluation at our Vietnam base. This approach has successfully raised quality levels in a short period and reduced re-cleaning costs in downstream processes. Deterioration of Yield Caused by Foreign Objects Occurring in Liquid Bath Cleaning Lines Foreign objects remain in the liquid bath cleaning process of communication equipment parts, causing defects to manifest in downstream processes. There is a desire to raise the quality level.The collection accuracy and durability of the current filter fail to meet requirements. An upgrade is an urgent matter.●Scenarios where manifested: Improvement of existing lines. Emerged as a requirement during a quality meeting at the Vietnam factory.●Main impacts: Deterioration of yield, increased re-cleaning costs in downstream processes, and complaints from customers. Why Do Foreign Objects Remain? Limits of Filter Physical Properties and Cleaning Liquid Contamination Physical property limits of the existing filter (collection accuracy and lifespan). Foreign objects re-adhere due to the progression of cleaning liquid contamination.Basis of identification: Interviewing about the quality level on-site / Comparison between defective samples and filter-collected samples. Countermeasures Tried So Far and Their Limits Increasing the filter replacement frequency (limited effect despite increased costs), and adjusting the cleaning liquid concentration (concern over parts damage).Based on these limitations, we adopted the following approach as a more fundamental countermeasure. Solution Approach: Upgrading to High-Performance Filters × Local Prototyping and Evaluation Implemented grade changes of existing materials (replacement with high-performance filters) + on-site prototyping and evaluation. STEP. 01 Alternative Product Search Comparing high-performance filters from multiple manufacturers using technical data STEP. 02 Local Evaluation Rapidly iterating prototyping and on-site evaluation at our Vietnam base STEP. 03 Sharing Technical Expertise The Japanese technical team and local staff collaborate to organize evaluation data Fuji Chemi Trading's Support System: Vietnam Base × Headquarters Technology × Partner Manufacturers This solution is realized through the division of roles across multiple bases.・Vietnam Base: Customer window, on-site evaluation, and prototype delivery・Headquarters / Technology: Filter grade comparison and evaluation reports・Partner Manufacturers: Stable supply of high-performance products and provision of physical property data●Supply System: Local delivery support, small samples for evaluation can be shipped immediately. Results of Implementation Improved collection accuracy reduced defects caused by foreign objects. Yield in downstream processes stabilized.●KPI Candidates: Defect rate reduction / Optimization of filter replacement costs / Reduction of re-cleaning in downstream processes.●Implementation Lead Time: After prototyping and evaluation, rolled out to mass production locally in a short period. Expected Ripple Effects and Horizontal Rollout The effects of implementing this solution extend beyond solving the primary issue. Please also utilize it as material for internal and management-level proposals.・Horizontal rollout to other cleaning lines (precision parts, semiconductor peripherals, substrates)・Collaborative sales with filter housing and filtration equipment manufacturers・High reproducibility under the theme of "complaints caused by foreign objects," making it easy to replicate across operations・Creating a reference case for other factories in Vietnam and other companies Difference from Competitors: Why Fuji Chemi Trading is Chosen Overseas filter trading companies focus mainly on single product sales. Fuji Chemi is capable of offering proposals that combine "local evaluation + Japanese quality + communication equipment expertise." Product Information and Spec Summary The main specifications of products with a proven track record of adoption can be selected from multiple grades depending on the application and requirements. Typical specifications are as follows (please contact us for detailed specifications). ItemSpecificationsMain ApplicationForeign object removal in liquid bath cleaning lines (for communication equipment parts)Filter TypeMultiple grades depending on application (centered on high-performance products)Collection AccuracySelected according to application requirements (micron to submicron)Supported ProcessesPre-cleaning / Main cleaning / Final cleaningLocal EvaluationRapidly iterating prototyping and on-site evaluation at our Vietnam baseDelivery FormLocal delivery support, small samples for evaluation can be shipped immediately How to Utilize and Operational Examples For actual operations, the following patterns are widely adopted.・Evaluation Phase: Requirement hearing → Sample evaluation → Specification finalization・Pre-mass Production Preparation: Cross-base division of roles, specification standardization, and local launch・Mass Production Phase: Ensuring short lead times and stable supply through our supply system・Horizontal Rollout: Supporting horizontal rollout to other bases and other projects FAQ (Frequently Asked Questions) How do we proceed with filter selection? We will interview you regarding the current situation of foreign object generation, the type of cleaning liquid, and flow rate conditions, compare the specifications of candidate filters, and then proceed to prototype evaluation. Can you also support overseas factories outside of Vietnam? Yes, similar prototype evaluation support is also available at our Thailand and China bases. Is it possible to request samples for evaluation? Yes, it is possible. Please let us know your required physical properties, flow rate, and expected foreign object size. Can we also request collaboration with the filtration equipment manufacturer? Yes, we can also propose collaborative sales efforts with filter housing manufacturers and filtration equipment manufacturers. Can you also offer proposals for other cleaning processes (semiconductors, precision parts)? It is also applicable to measures against foreign objects in the fields of precision parts, semiconductor peripherals, and substrates. Proposals by Related Applications and Issues ■Stable Supply and High Quality of Fluoropolymer Film (FEP/PFA) | Providing Multiple Samples with Short Lead Times through In-House Slitting■Joint Development of Low-Contamination Release Separator (Zero Adhesive Residue) | Achieving Both Function and Quality through Optimal Blending of Adhesive × Hardener■Local Procurement of Static Electricity Measures for OA Equipment in Vietnam | Selecting Static Elimination Brushes and Conductive Fibers Aligned with the Manufacturer's Design Philosophy

ベトナム拠点

品質向上 x 歩留まり改善

評価サポート

高機能フィルター

高機能材料

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Accelerating LIB Separator Air Permeability Measurement | Improving Quality Control Efficiency Through Coordination Across Oken-Type Air Permeability Testers × China Bases・Overseas Distributors

The “Air Permeability Measurement Bottleneck” Issue Occurring at LIB Separator Production Sites

Why Measurement Speed Fails to Increase: Processing Speed of Existing Testing Machines and Inspection Demands at the Site

Countermeasures Attempted Thus Far and Their Limitations

Solution Approach: Installation of Oken-Type Air Permeability Testers × Coordination Across Overseas Distributors × Shanghai Base Installation Support

Equipment Installation Proposal

Coordination with Overseas Distributors

Local Coordination

Fujichemi Trading’s Supply Framework: Shanghai Base × Overseas Distributors × Partner Manufacturers

Results from Installation

Expected Ripple Effects and Horizontal Rollout

Differences from Competitors: Why Fujichemi Trading is Chosen

Product Information and Spec Overview

Utilization Methods and Operational Examples

FAQ (Frequently Asked Questions)

Proposals by Related Applications and Issues

この用途・課題別の提案を書いた人

Solutions by Application and Challenge in the Same Category

Temperature-Dependent Sheet HUMOFIT® | Reducing the Feeling of Pressure with F+BAND, a Fixation Band for Medical and Sports Applications

Multi-sourcing for BCP of Cable Noise Suppression Ferrite Cores | Balancing Equivalent Quality, Stable Supply, and Cost Reduction

Improving Foreign Object Removal Rate in Liquid Bath Cleaning of Communication Equipment Parts | Joint Proposal of High-Performance Filter and Local Evaluation in Vietnam

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