ロンビック List of Products and Services

At Ronbic Co., Ltd., we conduct measurements of "water vapor permeability and oxygen permeability." In addition to films and sheets used for food packaging materials, samples of product shapes such as beverage bottles like PET bottles and food containers can also be measured in their original form. By using dedicated fixtures, it is possible to measure the gas permeability from the outside to the inside of the container. (The measurement conditions for bottles and food containers are 23°C and 50% RH.) 【Measurement Conditions (Example)】 ■ Water Vapor Permeability Measurement ・Compliant with JISK7129-2 ・Measurement Temperature: 10°C to 40°C ・Measurement Humidity: Dry, 35% to 90% RH *For more details, please download the PDF or feel free to contact us.

At Ronbic Co., Ltd., we conduct measurements for "foreign substance analysis and adhesion analysis." We offer a wide range of services, including qualitative analysis of foreign substances mixed (or kneaded) into resin products, food, and pharmaceuticals, analysis of foreign substances in liquids, analysis of adhesion that occurs during the manufacturing process, and analysis of components that have bled out (bloomed) from rubber products. We have extensive experience in foreign substance analysis and adhesion analysis, and we can also provide consultation and suggestions regarding analytical methods. 【Measurement Examples (Partial)】 ■ Qualitative analysis of foreign substances mixed (or kneaded) into resin products, food, and pharmaceuticals ■ Analysis of foreign substances in liquids (sampling through filtration, extraction, etc., followed by analysis) ■ Qualitative analysis of filter catch ■ Investigation of the causes of fish eyes ■ Analysis of adhesion that occurs during the manufacturing process ■ Qualitative analysis of oil adhered to metal parts *For more details, please download the PDF or feel free to contact us.

We would like to introduce the "Evaluation of Recycled Resin Materials" offered by Ronbic Co., Ltd. We provide various evaluation items, including analysis of the types of contained resins (qualitative analysis of resins and fillers, quantitative analysis of content ratios, molecular weight distribution measurement), assessment of foreign matter content (foreign matter inspection), mechanical property testing, and accelerated life characteristic testing. Please feel free to contact us when you require our services. 【Evaluation Items (Partial)】 ■ Analysis of Contained Resin Types - Qualitative analysis of resins and fillers, quantitative analysis of content ratios, molecular weight distribution measurement ■ Dispersion Evaluation - Observation of dispersion morphology using TEM (Transmission Electron Microscopy) ■ Additive Analysis - Qualitative and quantitative analysis of additives using GC, HPLC, etc. *For more details, please download the PDF or feel free to contact us.

Our company is engaged in "contributing to the circular economy through resin analysis." We provide products and services that address diverse needs related to solving plastic issues. The Resin Inspection and Analysis Center utilizes analysis and evaluation technologies to support the establishment of systems for the collection and recycling of plastics, as well as to evaluate bioplastics. The circular economy, or circular economy, forms a cycle of "manufacturing - usage - re-materialization" while ensuring the economic viability of members in the loop to sustain social activities, serving as a key solution to mitigate plastic problems. [Analysis and Evaluation Examples] ■ Evaluation of collected items Model case 1: Resin types, additives, foreign substances, impurities, etc. ■ Evaluation of recycled materials Model case 2: Performance evaluation (moldability, physical property tests, etc.) ■ Evaluation of recycled materials Model case 3: Investigation of causes of performance degradation ■ Decomposition performance evaluation Model case 4: Biodegradability assessment in compost *For more details, please refer to the related links or feel free to contact us.

I would like to introduce "Model Case 1: Examination of Sorting Methods for Resources Collected from the Market." The resources collected for recycling may contain various types of resins, foreign substances, and impurities. To efficiently reprocess these resources into raw materials, it is necessary to appropriately sort them to meet the required quality standards. By utilizing evaluation techniques for recycled plastic resources and fiber length assessment, we can support the establishment of collection and sorting methods that align with specific objectives, resulting in a system that secures raw materials of the desired quality. 【Evaluation of Recycled Plastic Resources】 - Analysis of resin types in collected items: Identification of resin types such as PP, PE, PS, PVC, PET, etc., using FT-IR. - Analysis of the composition of additives: Organic additives, glass fibers, etc. - Evaluation of foreign substances and impurities: Assessment of foreign substance size, quantity, etc., through image analysis. *For more details, please refer to the related links or feel free to contact us.

I would like to introduce "Model Case 2: Consideration of the Use and Operation Methods of Recycled Materials." When considering the use of recycled materials, it is necessary to evaluate the physical properties of the materials, so we can propose various physical property tests. In addition to physical property testing, we can handle everything from compounding to specimen preparation, responding to a wide range of requests. By supporting the comparison of strength between virgin materials and recycled materials, as well as examining the recycling conditions that meet quality requirements, we can establish a system that maximizes the effective use of recycled materials. 【Various Evaluations of Recycled Materials】 ■ Comparison of strength between recycled materials and virgin materials: tensile, bending, compression, impact strength, etc. ■ Comparison by mixing ratio of recycled materials: compounding to specimen preparation to physical property testing for each formulation ■ Comparison of physical property values by number of recycling: evaluation of foreign object size, quantity, etc., through image analysis *For more details, please refer to the related links or feel free to contact us.

Introducing "Model Case 3: Supporting Quality Improvement of Recycled Materials." Products made from recycled market resources often exhibit lower quality compared to those made from virgin materials. As the use of recycled materials increases in the future, it is expected that the quality requirements will also rise, necessitating countermeasures. By utilizing technologies such as investigating the factors contributing to the performance decline of recycled materials, we can identify the causes of quality degradation. If we can avoid or reduce these factors during the collection, sorting, and recycling processes, we can improve the quality of the final products. [Investigation of Factors Contributing to Performance Decline of Recycled Materials] - Resin degradation assessment: Confirmation of molecular weight reduction through molecular weight distribution measurement - Investigation of fracture causes in resin materials: Fracture surface analysis using optical microscopy, SEM, etc. - Evaluation of moldability: Assessment of moldability through melt viscosity, elongation viscosity, etc. *For more details, please refer to the related links or feel free to contact us.

We would like to introduce "Model Case 4: Evaluation of Biodegradability." We conduct evaluations of biodegradation rates and degrees of decomposition necessary for the development, introduction, use, and approval of biodegradable materials, represented by biodegradable plastics. Lombic is a certified testing organization of JBPA. The measurement principle involves calculating the degree of decomposition by measuring the amount of CO2 released during the respiration of microorganisms as they decompose the plastic. [Details of our JBPA Certified Testing Organization] ■ Certification Testing Organization Number: JBPA-7 ■ Subject: Biodegradation Test JIS K6953-2 (ISO 14855-2) *For more details, please refer to the related links or feel free to contact us.

Our company is capable of qualitative and quantitative analysis of 12 types of polymers in mixed resin materials. Without the need for complex separation processes or multiple analytical instruments, we can analyze the composition of various samples using thermal decomposition GC/MS methods. Please feel free to contact us when you need our services. 【Supported Samples】 ■ Recycled plastics (related to recycling) ■ Waste plastics (related to waste recycling) ■ Polymer blends (related to synthetic resins) ■ Microplastics (related to marine pollution) *For more details, please download the PDF or feel free to contact us.

In recycled materials containing fillers such as glass fibers, the fiber length distribution after recycling becomes an important factor. Our company is capable of analyzing the fiber length distribution of samples after recycling and grinding. We can also perform evaluations from grinding to analysis using our own grinding machines. Please feel free to contact us when you need our services. 【Features】 ■ Capture images of fibers using an optical microscope and detect each glass fiber through image analysis ■ Based on information on fiber length and quantity, distribution evaluation can be performed using histograms, etc. ■ Additionally, we can calculate the number average fiber length, length-weighted average fiber length, maximum fiber length, minimum fiber length, and more. *For more details, please download the PDF or feel free to contact us.

Our company also conducts contract analysis related to the quality confirmation of recycled resin materials. Recycled materials are prone to contamination by foreign substances such as metals and different resins, which can affect product quality. Therefore, reducing foreign substances is one of the major challenges. We are capable of various analyses and evaluations for recycled resins. Please feel free to contact us when needed. [Overview] ■ Remove the base resin from the collected foreign substances using mesh, and evaluate the condition of the foreign substances through visual observation. - Understand the general condition of foreign substances from their appearance. ■ Evaluation of foreign substances using press sheets. - Process the sheets to evaluate the number and size of foreign substances, and quantitatively compare the quality between samples. ■ Individual foreign substance analysis. - Analyze what the foreign substances are using FT-IR, elemental analysis, RAMAN spectroscopy, etc. *For more details, please download the PDF or feel free to contact us.

Our company evaluates the recyclability of resin materials. It is also possible to assess changes in physical properties according to the number of recycling cycles, and we can handle everything from crushing the test specimens to molding and testing them consistently. Through various analyses and evaluations, we measure the characteristics and durability of recycled materials, supporting the consideration of environmentally friendly materials. 【Features】 ■ Crushing - Capable of crushing general-purpose resins, engineering plastics, and glass fiber-reinforced resins. We also have a track record with shapes such as films, sheets, and bottles in addition to test specimens. ■ Test specimen production - Test specimens can be produced in the form of dumbbells and sheets through injection molding. ■ Various physical property tests - Various physical property tests are possible, including tensile, compression, bending, and impact tests (Izod, Charpy). *For more details, please download the PDF or feel free to contact us.

Our company conducts various analyses and evaluations regarding recycled resin materials. When evaluating the recyclability of collected products, it is difficult to assess them as they are, but by crushing them, it becomes possible to create test specimens and evaluate various physical properties. Additionally, we can provide crushed materials from a wide range of sources, including engineering plastics with glass fibers, general-purpose resins, test specimens, sheets, and other shapes. 【Features】 ■ Capable of crushing hard materials with glass fibers to soft materials like thin films ■ We also support injection molding, press molding, and various physical property tests using the crushed materials *For more details, please download the PDF or feel free to contact us.