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The container for solid roux has a multilayer structure because it is necessary for food preservation. By observing the cross-section of such food containers with an electron microscope, the layer composition can be clarified. It was found that a commercially available solid roux container has a multilayer structure consisting of seven layers with a thickness of approximately 3μm to approximately 40μm, as observed by FE-SEM. Based on this, further material analysis (＊1) using FT-IR and Raman analysis allowed us to understand the materials of each layer. Additionally, the preservation properties of the container can also be assessed through measurements of oxygen permeability and water vapor permeability (＊2). *For more details, please download the PDF or feel free to contact us.

• Contract Analysis

The container for solid roux has a multi-layer structure due to the need for food preservation. By observing the cross-section of such food containers with an electron microscope, the layer composition can be clarified. It was found that a commercially available solid roux container has a seven-layer multi-layer structure with a thickness of approximately 3μm to approximately 40μm, as determined by FE-SEM observation. Based on this, further material analysis (＊1) was conducted using FT-IR and Raman analysis, allowing us to understand the materials of each layer. Additionally, the preservation properties of the container can also be assessed through measurements of oxygen permeability and water vapor permeability (＊2). *For more details, please download the PDF or feel free to contact us.

• Contract Analysis

"Chromatographic analysis" is a method for separating and analyzing components of a mixture. When a mixture sample is injected into a column through which a fluid is flowing, the mixture is separated into its components due to chemical and physical interactions as it moves through the flow. Each component is converted into an electrical signal by a detector and is represented as a peak (chromatogram). [Types] ■ Gas Chromatography - Uses gases such as nitrogen or helium. ■ Liquid Chromatography - Uses liquids such as organic solvents or water. *For more details, please download the PDF or feel free to contact us.

• Gas chromatograph

Ronbic Co., Ltd. is a company that develops its business around five main areas: resin business, analysis business, business services, environmental business, and various service businesses. With a production capacity of 150,000 tons per year and a long history of production achievements, we have five factories in Japan, equipped with a variety of polymer mixing facilities ranging from polyolefins to super engineering plastics, as well as small-scale production facilities for colored masterbatches and additive masterbatches. Additionally, leveraging the high-precision analysis technology and extensive experience cultivated as part of the Mitsubishi Chemical Group, we comprehensively analyze resin-focused analytical techniques, material evaluations, and everything from development challenges to troubleshooting. 【Business Content】 ■ Resin Business (Development and manufacturing of compound products, resin sales) ■ Analysis Business (Analysis and evaluation of resins, etc.) ■ Business Services (Logistics processing, storage, transportation, management of rotating containers) ■ Environmental Business (Industrial waste disposal) ■ Various Service Businesses (Golf practice ranges, greening, housing, etc.) *For more details, please refer to our catalog or feel free to contact us.

• Resin processing machine

Our company conducts "standard hygiene tests" and more. We perform hygiene tests for food packaging containers (Ministry of Health Notification No. 370) and elution tests for positive list registration with the Polyolefin Hygiene Council. We also comply with the Japanese Pharmacopoeia tests and the Milk Industry Act. Please feel free to contact us when you need our services. 【Service Contents (Excerpt)】 ■ Hygiene tests for food packaging containers (Ministry of Health Notification No. 370) ■ FDA standard elution tests (food packaging) ■ Elution tests for positive list registration with the Polyolefin Hygiene Council ■ Analysis for FDA (FCN) application *For more details, please refer to the related links or feel free to contact us.

• Public Testing/Laboratory

We would like to introduce our "Physical Property Measurement and Evaluation" services. We conduct measurements of viscoelasticity in solid and molten states, as well as evaluations of the physical properties required for polymer materials such as resins and rubbers. We also offer mixing (including torque measurement in extrusion tests using lab plastometers), molding (press and injection), and PVT measurements. 【Service Details (Excerpt)】 ■ Various physical property tests based on ISO/IEC 17025 from molding ■ Evaluation of physical properties required for polymer materials such as resins and rubbers → mechanical properties, thermal properties, physical properties, optical properties, gas permeability ■ Measurement of viscoelasticity in solid and molten states (dynamic viscosity, shear viscosity, elongational viscosity, melt tension, stress relaxation, normal stress, etc.) *For more details, please refer to the related links or feel free to contact us.

• Contract measurement

We would like to introduce our "Morphological Observation and Foreign Substance Analysis" services. We conduct micro foreign substance analysis of organic and inorganic materials using our unique micro-sampling techniques, as well as layer composition observation of multilayer molded products (such as films) using SEM and micro FTIR. Please feel free to contact us when you need our services. 【Service Details】 ■ Morphological observation and surface measurement using Scanning Electron Microscopy (SEM), Laser Microscopy (LM), and Scanning Probe Microscopy (SPM) ■ Observation of crystal structures and morphologies of polymer alloys using Transmission Electron Microscopy (TEM) with various staining techniques ■ Micro foreign substance analysis of organic and inorganic materials using our unique micro-sampling techniques ■ Layer composition observation of multilayer molded products (such as films) using SEM and micro FTIR *For more details, please refer to the related links or feel free to contact us.

• Contract Analysis

We would like to introduce our services related to "Polymer Structure Analysis and Additive Analysis." We conduct composition and structure analysis using techniques such as infrared spectroscopy (IR) and NMR, as well as additive analysis utilizing various chromatography methods. Please feel free to contact us when you need our services. 【Service Details】 ■ Evaluation of the polydispersity (molecular weight distribution and composition distribution) of polymers using SEC (GPC) with multiple detectors (RI, UV, PDA, etc.) ■ Composition and structure analysis using infrared spectroscopy (IR) and NMR ■ Component analysis using separation and purification techniques for polymer materials (gel fraction, etc.) ■ Additive analysis utilizing various chromatography methods *For more details, please refer to the related links or feel free to contact us.

• Structural Analysis

We would like to introduce the products handled by our Resin Sales Division. We offer small-lot sales of polyethylene and polypropylene, sourced from Japan Polyethylene Corporation and Japan Polypro Corporation. Sales start from 25kg bags. We also sell off-spec (non-standard) polyethylene and polypropylene, from Japan Polyethylene Corporation and Japan Polypro Corporation. 【Specifications (Excerpt)】 ■ Small-lot sales of polyethylene and polypropylene ・ Products from Japan Polyethylene Corporation and Japan Polypro Corporation ・ Available from 25kg bags ■ Sales of off-spec (non-standard) polyethylene and polypropylene ・ Products from Japan Polyethylene Corporation and Japan Polypro Corporation *For more details, please refer to the related links or feel free to contact us.

• Other polymer materials

We would like to introduce the applications of the "resin materials" we handle. Low-density polyethylene is used for films, laminates, and wire coatings, while high-density polyethylene is used for hollow containers, films, and containers, among others. Additionally, polypropylene is used in a wide range of applications, including films for automobiles and electrical/electronic components, containers, everyday goods, and medical products. [Applications] ■ Low-density polyethylene: films, laminates, wire coatings ■ High-density polyethylene: hollow containers, films, containers, etc. ■ Polypropylene: films for automobiles and electrical/electronic components, containers, everyday goods, medical products, etc. *For more details, please refer to the related links or feel free to contact us.

• Other polymer materials

We would like to introduce the "resin materials" that we handle. We deal with two types of thermoplastic resins that represent petrochemical products: "polyethylene," which is a representative thermoplastic resin, and "polypropylene," which is also a representative thermoplastic resin alongside polyethylene. We cover three sales bases (Tokyo, Chubu, Osaka) nationwide. 【Features】 ■ With a team of experienced sales, operations, technical, and development personnel, we respond to our customers' needs from the position of a resin manufacturer. *For more details, please refer to the related links or feel free to contact us.

• Other polymer materials

We focus on the evaluation of the physical properties and characteristics of a wide range of resin materials, from general-purpose resins to engineering plastics, as the core of our technology. Our specialized analytical technicians sincerely support material development, as well as problem-solving in manufacturing sites and products, through various separation analyses using chromatography and analyses using spectroscopy. We offer a variety of services, including identifying the causes of resin troubles through comprehensive analysis, resin analysis, and inspections of resin materials. If you have any requests, please feel free to contact us. 【Features】 ■ Extensive experience ■ High-precision analytical techniques ■ Meeting the needs in the development and manufacturing of resin products *For more details, please refer to our catalog or feel free to contact us.

• Resin processing machine