和信溶材 List of Products and Services

The PNA series is an inline oxygen concentration meter that uses a limit current method. When a voltage is applied to the zirconia element, an ionic current flows with oxygen ions as the carrier. As the oxygen concentration changes, the current characteristics also change proportionally, allowing for the detection of oxygen concentration. This method is durable and has a long expected lifespan. We also have a catalog with detailed specifications available. For more information, please download the PDF document below. 【Features】 ■ Switchable display for oxygen and inert gas concentrations ■ Upper and lower limit switch output settings and analog output available ■ Self-diagnostic function included ■ Protection structure equivalent to IP65 ■ Pressure-resistant structure *For more details, please refer to the PDF document or feel free to contact us.

• Other measuring instruments

The "NS Series" is a nitrogen gas purification unit that allows for easy extraction of nitrogen gas from compressed air. The provision of system equipment makes design and piping easy. Its compact and lightweight design enables installation close to the equipment, eliminating the need for long piping work dedicated to nitrogen. Additionally, because there are no moving parts, it maintains stable performance and allows for parts replacement while still piped. We also have a catalog with detailed specifications available. For more information, please download the PDF document below. 【Features】 ■ Compatible with the FP series for safe food manufacturing processes ■ Newly added horizontal type to the lineup ■ Can be installed in various locations ■ Low cost and reduced labor ■ Easy maintenance *For more details, please refer to the PDF document or feel free to contact us.

• others

In recent years, issues related to food handling, such as food loss and environmental problems, have come to be viewed critically. Additionally, with the increase in single-person households, there has been a rise in "individual meals" from convenience stores, leading to a demand for smaller packaging and extended shelf life. To address these challenges, a packaging technology called MAP (Modified Atmosphere Packaging) has been developed to extend the shelf life of food. Originally widely used for packaging ham and sausages, there is now a multifaceted exploration of expanding the applications of MAP, influenced by food loss reduction laws and various companies' initiatives toward SDGs. This document provides a detailed introduction to MAP and the industrial gases used for gas packaging. We encourage you to read it. 【Contents of the document】 ■ Chapter 1: Background of gas packaging ■ Chapter 2: Types of gases used as food additives ■ Chapter 3: Process leading to the introduction of gas packaging ■ Chapter 4: Case studies of gas equipment troubles and equipment maintenance *For more details, please refer to the PDF document or feel free to contact us.

• Gas equipment

In recent years, the term MAP has gradually started to be heard within Japan. MAP refers to a packaging technology that enables the extension of food preservation periods, and in Japan, it is referred to as "gas replacement packaging" or "gas pack." Additionally, with the increase in single-person households, the rise of "individual meals" in convenience stores has led to a demand for smaller packaging that extends the expiration date. Due to the background of food waste reduction laws and various companies' efforts towards SDGs, multifaceted discussions are progressing to expand the applications of MAP. This document specifically introduces industrial gases for gas packaging. We encourage you to read it. 【Contents】 ■ Chapter 1 Background of gas packaging ■ Chapter 2 Types of gases as food additives ■ Chapter 3 Flow leading to the introduction of gas packaging ■ Chapter 4 Case studies of gas equipment troubles and equipment maintenance *For more details, please refer to the PDF document or feel free to contact us.

• Gas equipment

"Gas" prevents contamination with iron powder due to accidental ingestion or damage, and compared to deoxidizers, there is no risk of foreign matter contamination. To prevent oxidation of the target object, "nitrogen gas (N2)" is used; to limit bacterial growth, "carbon dioxide (CO2)" is used; and to maintain the redness of meat, "oxygen gas (O2)" is used. The combination of nitrogen and carbon dioxide has a greater bacteriostatic effect than deoxidizers. We also have demo units available, so please feel free to contact us. [Features] ■ No risk of foreign matter contamination compared to deoxidizers (Prevents contamination with iron powder due to accidental ingestion or damage) ■ High bacteriostatic effect (Nitrogen + carbon dioxide has a greater bacteriostatic effect than deoxidizers) ■ Demo units are available for demonstration *For more details, please refer to the PDF materials or feel free to contact us.

• Other commercial buildings and service facilities

We provide carbon dioxide (CO2), which is heavier than air and has a property of easily dissolving in moisture. Due to its tendency to dissolve in water and oil, it is mainly used in gas packaging applications mixed with nitrogen gas. When sealed with only carbon dioxide, there is a risk of flavor changes and packaging collapse, so caution is required. It can be used for food packaging, preventing the increase of bacterial counts (antimicrobial effect), and for acidifying food. Please feel free to contact us if you have any requests. [Applications] ■ Food packaging ■ Prevention of bacterial count increase (antimicrobial effect) ■ Food acidification *For more details, please download the PDF or feel free to contact us.

• Related Equipment

We provide 'Nitrogen N2', a colorless, tasteless, and odorless gas that makes up about 78% of the air, characterized by its inertness at room temperature and extremely low temperature of -196°C in liquid form. It offers various benefits, including food packaging, long-term storage of strains through freezing, prevention of oxidation, preservation of flavor, shock absorption, and moisture removal. Additionally, it can be used for various applications, including rubber trimming and even heat treatment. Please feel free to contact us if you have any requests. 【Applications】 ■ Food packaging ■ Food freezing ■ Frozen storage ■ Rubber trimming ■ Heat treatment *For more details, please download the PDF or feel free to contact us.

• Related Equipment

We provide "oxygen gas (O2)," which is slightly heavier than air and has a property of being difficult to dissolve in water. Since oxygen gas does not have antioxidant or bacteriostatic effects, it is often used in gas packaging applications for meat and other products in combination with carbon dioxide. *When sealed with only oxygen gas, bacterial growth may occur. Additionally, because oxygen gas has the dangerous property of supporting combustion, all piping and packaging equipment must be equipped with explosion-proof facilities compatible with oxygen gas. Please feel free to contact us if you have any requests. 【Applications】 ■ Maintaining the bright red color of meat ■ Preserving the freshness of fresh vegetables, etc. *For more details, please download the PDF or feel free to contact us.

• Related Equipment