Solutions by Use Case

Joint Development of Low-Contamination Release Liners (Zero Adhesive Residue) | Balancing Functionality and Quality through Optimized Blending of Adhesives and Curing Agents

Release liners that suffer from poor compatibility with adhesives, leading to adhesive residue after peeling—we break through this physical property limit by optimizing the blend of adhesives and curing agents, combined with partnership with our partner manufacturers. Through a joint development scheme built on repeated prototyping and evaluation, we have simultaneously achieved enhanced functionality/performance and consistent quality. The Barrier of "Low-Contamination Requirements" Standing in the Way of New Product Tape Development Seeking to develop a release liner with zero adhesive residue for a new tape product, as existing products fail to meet low-contamination requirements.Poor compatibility with the adhesive results in trace amounts of residue remaining after peeling.●Situations where the issue manifests: New product development phase.●Primary impacts: Adhesion failures, peeling failures, and competitive pressure to switch to alternative suppliers' products. Why Zero Adhesive Residue Cannot Be Achieved: Poor Interfacial Compatibility Between the Adhesive and the Release Layer Physical property limits of existing liner materials. Poor compatibility at the interface between the adhesive and the release layer.●Basis for Identification: Product research and prototype evaluations. Countermeasures Attempted So Far and Their Limitations Changing the types of existing liners (only limited improvement), or adjusting the peeling force alone (contamination issue remained unresolved).Based on these limitations, we adopted the following approach as a more fundamental and drastic countermeasure. Solution Approach: Optimizing Adhesives & Curing Agents Blending × Joint Development Scheme Jointly optimizing the blending of adhesives and curing agents with the customer by proposing new materials + changing existing grades. STEP. 01 Material Proposal Proposing multiple release layer and adhesive candidates for low-contamination applications STEP. 02 Blending Optimization Reducing post-peeling contamination by modifying the curing agent ratio STEP. 03 Iterative Prototyping & Evaluation Conducting repeated evaluations on-site in collaboration with partner manufacturers Fujichemi Trading's Service Delivery Network: Head Office × Partner Manufacturers × Customers (Adhesive Evaluation) This solution is established through a clear division of roles across multiple locations.・Head Office / Domestic Sales: Project window (point of contact)・Partner Manufacturers: Supply of release layers, adhesives, and curing agents, along with technical expertise・Customer (Tape Manufacturer): Evaluation on the adhesive side●Supply System: Joint development scheme, supporting small-lot supply during the development phase. Results achieved through implementation Achieved enhanced functionality/performance, consistent quality, and a reduced defect rate.●KPI Candidates: Improvement in contamination test pass rates / Improvement in customer-side yield.●Implementation Lead Time: Mid-to-long term development project with repeated prototyping and evaluation. Anticipated Ripple Effects and Horizontal Expansion The implementation effects of this solution go beyond solving the primary issue. Please also leverage this as material for internal and executive-level proposals.・Commercializing the "combination proposal" of release layer × adhesive layer × curing agent・Establishing a strong presence as a bridge between adhesive manufacturers and film manufacturers Differences from Competitors: Why Fujichemi Trading is Chosen Adhesive manufacturers alone often find it difficult to commit deeply to the release layer side. As a trading company capable of cross-functionally handling "release layers × adhesives × curing agents," Fujichemi can fulfill the role of a collaborative hub. Product Information & Spec Overview The main specifications of our proven products can be selected from multiple grades depending on your application and requirements. The representative specifications are as follows (please contact us for detailed specifications). ItemSpecificationsPrimary ApplicationRelease liners for tapes and adhesive filmsDesign AxisInterfacial compatibility between release layer and adhesive / Curing agent ratioCollaboration FormatJoint development scheme (iterative prototyping & evaluation)SupplySupports small-lot supply during the development phaseRelated FieldsLow-contamination requirement tapes for electronic and optical fieldsEvaluation ItemsContamination test / Peeling force Application Methods & Operational Examples The following patterns are commonly adopted in actual operations.・Evaluation Phase: Requirement hearing → Sample evaluation → Specification finalization・Pre-Mass Production Preparation: Role division across multiple cross-functional locations・Mass Production Phase: Ensuring stable supply through our established supply system・Horizontal Expansion: Supporting horizontal expansion to other locations and projects FAQ (Frequently Asked Questions) What kind of system/framework will be used to proceed with joint development? Our company will act as the single point of contact, connecting partner manufacturers handling release layers, adhesives, and curing agents with the customer's evaluation team. How long is the prototyping period? It depends on the project, but because it requires repeated blending and evaluation, it tends to become a mid-to-long term project. Can we conclude an NDA (Non-Disclosure Agreement)? Of course. We can execute an NDA at the initial stage of development. Proposals by Related Applications and Specific Challenges ■Small-Lot & Slitting of FPC Release Film | Supplying Evaluation Samples with Short Lead Times from In-Stock Items■Stable Supply and High Quality of Fluoropolymer Film (FEP/PFA) | Providing Multiple Samples with Short Lead Times via In-House Slittin

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