廣瀬製紙 Product Lineup

In the energy industry, particularly in the field of energy storage, there is a demand for high-performance separators and electrode materials. The performance of these materials is greatly influenced by the pore size control of wet non-woven fabrics. Optimizing pore size is essential for improving ionic conductivity, optimizing electrolyte retention capacity, and enhancing the durability of devices. Improper pore size design can lead to decreased performance and shortened lifespan of energy storage devices. Our column on pore size control technology explains how to utilize wet non-woven fabrics to contribute to the performance enhancement of energy storage devices. 【Application Scenes】 - Lithium-ion battery separators - Capacitor separators - Fuel cell separators 【Effects of Introduction】 - Improved performance of energy storage devices - Enhanced durability of devices - Increased efficiency in product development

• fiber

In the field of environmental purification, high-performance filters and separation materials are required to efficiently remove pollutants. Particularly in water purification and air purification, it is crucial to reliably capture fine particles and harmful substances. By appropriately controlling the pore size of wet non-woven fabrics, it is possible to meet these demands. Our pore size control technology contributes to the improvement of purification performance. 【Application Scenarios】 - Water purification filters - Air purification filters - Wastewater treatment 【Benefits of Implementation】 - High purification efficiency - Improved separation performance - Enhanced product quality

• fiber

In the automotive industry, sound absorption performance is required to enhance the comfort of the vehicle interior. In particular, reducing noise such as road noise and engine sounds is important for improving customer satisfaction. Insufficient sound absorption performance can lead to difficulties in conversation and feelings of fatigue inside the vehicle. Our pore size control technology achieves effective sound absorption performance by optimizing the pore size of wet non-woven fabrics. 【Application Scenes】 - Interior materials of the vehicle (dashboard, trim, etc.) - Engine room - Underfloor carpet 【Effects of Implementation】 - Reduction of in-vehicle noise - Improvement of comfort - Increase in customer satisfaction

• fiber

In the cosmetics industry, the penetration efficiency of active ingredients into the skin greatly influences the value of products. Particularly, to effectively deliver moisturizing and beauty ingredients, the use of non-woven fabrics with appropriate pore sizes is essential. Traditional non-woven fabrics have faced challenges such as insufficient penetration efficiency of ingredients or strong irritation to the skin. Our pore size control technology aims to address these issues and maximize the effectiveness of cosmetics. 【Usage Scenarios】 * Promotion of penetration for lotions, serums, masks, etc. * Cleansing sheets, makeup removal sheets * Delivery of active ingredients to the skin 【Benefits of Implementation】 * Improved permeability of cosmetic ingredients * Gentleness on the skin and reduced irritation * Increased added value of products * Enhanced customer satisfaction

• fiber

In the medical industry, filtration applications require high separation performance and quality control. Particularly in situations where safety is the top priority, such as with blood products and infusion filters, the pore size of non-woven fabrics significantly affects filtration efficiency and product safety. Inadequate design and management of pore size can lead to contamination and reduced filtration performance. Our pore size control technology precisely regulates the pore size of wet non-woven fabrics, achieving optimal filtration performance for medical applications. 【Usage Scenarios】 - Filtration of blood products - Infusion filters - Filters for cell culture - Surgical masks 【Benefits of Implementation】 - Improved product safety through high filtration accuracy - Reduced risk of contamination - Stabilization of product quality through optimized filtration efficiency

• fiber

The "pore diameter" in wet non-woven fabric (non-woven fabric produced by the paper-making method) is a very important factor in product performance and quality control. For example, in filter and separator applications, the size of the pores in the sheet affects the separation performance, so it is necessary to appropriately design and manage the pore diameter to meet the specified performance. On the other hand, the functional requirements for non-woven fabrics are becoming increasingly sophisticated, and there are challenges in traditional technology to adjust to the desired pore diameter while ensuring the strength and thickness of the sheet. This column will provide a broad explanation of the important pore diameter for enhancing the functionality of wet non-woven fabrics, covering everything from basic concepts to control technologies in the manufacturing process, the impact on product performance, as well as application examples and future prospects, in a way that is easy to understand for those who are not specialists in wet non-woven fabric technology. *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.

• fiber

Separation membranes are essential in fields such as water treatment and healthcare, but the strength of the membranes themselves is very weak. Therefore, the presence of a support structure that enhances physical strength by supporting the separation layer is indispensable for them to function effectively. Non-woven fabric has played an important role as this support structure, but conventional technologies have faced the challenging issue of balancing pore size adjustment with ensuring strength and thickness. This article will provide a detailed overview of separation membranes and the necessity of support structures, while also explaining in detail the newly developed heterogeneous double-layer non-woven fabric as a technology to address the challenges of current support structures. *For more detailed information, please refer to the related links. Feel free to contact us for further inquiries.*

• fiber

Have you ever experienced that your clothes shrank or became wrinkled after putting them in the dryer? The dryer dries clothes by blowing hot air, but the fibers in the fabric can deform or shrink due to the heat, resulting in the entire garment shrinking or wrinkling. Similarly, non-woven fabrics, which are also made of fibers, can also shrink or deform when heated. In this article, we will explain the reasons why fibers shrink and deform due to heat, using non-woven fabrics as an example, as well as methods to suppress the shrinkage and deformation of fibers caused by heat. *For more detailed information, please refer to the related links. Feel free to contact us for more details.*

• fiber

In general, paper can be broadly classified into two categories: those made solely from plant fibers, which are called paper, and those made by mixing synthetic fibers or metal fibers, which are referred to as "non-woven fabric." Wet non-woven fabric is made using a method similar to papermaking, where water and fibers are mixed together and formed into a mesh network, then dewatered through compression or heat. 【Features】 ● Similar texture to paper ● Uniform sheets can be obtained ● Often used for medical and industrial purposes ● Depending on the type, appearance is similar to Western paper ◆◇ For more details, please request materials or feel free to contact us ◇◆

• others

In thermal design under high-temperature environments, the "deformation and deterioration" of materials poses a significant risk of serious troubles. Hirose Paper's PPS non-woven fabric (PS type) is a wet non-woven fabric made from 100% PPS fibers, demonstrating high heat resistance with a melting point of 280°C. Even when exposed to high temperatures for extended periods, it is less likely to undergo dimensional changes, enabling stable thermal control design. Additionally, PPS has resistance to many organic solvents and alkalis. Compared to polymers such as PET and PE, it exhibits higher resistance to organic solvents and alkalis, making it a noteworthy alternative material to PTFE in terms of chemical resistance. *For more details, please refer to the PDF document or feel free to contact us.*

• Paper and pulp products

Hirose Paper Co., Ltd.'s PPS fiber 100% wet non-woven fabric "PS type" uses PPS fiber with excellent steam heat resistance. This material has outstanding hydrolysis resistance against high-temperature steam, maintaining over 90% strength even after being treated for 24 hours in an autoclave at 160°C. This characteristic makes it ideal for use in high-temperature and high-humidity environments, as well as in the medical field where autoclave sterilization is required. Additionally, the PS type is available in basis weights ranging from 16 to 106.2 g/m² and thicknesses from 29 to 195 μm, accommodating various applications. *For more details, please refer to the PDF document or feel free to contact us.*

• Paper and pulp products

Hirose Paper Co., Ltd.'s PPS fiber 100% wet non-woven fabric "PS type" uses PPS fiber with excellent steam resistance. This material has outstanding hydrolysis resistance against high-temperature steam and retains over 90% of its strength even after being treated in an autoclave at 160°C for 24 hours. This characteristic makes it ideal for use in high-temperature and high-humidity environments, as well as in the medical field where autoclave sterilization is required. Additionally, the PS type is available in basis weights of 16 to 106.2 g/m² and thicknesses of 29 to 195 μm, accommodating a variety of applications. *For more details, please refer to the PDF document or feel free to contact us.*

• Paper and pulp products

Hirose Paper Co., Ltd.'s PPS fiber 100% wet non-woven fabric "PS type" uses PPS fibers with excellent chemical resistance. This material has high resistance to many organic solvents and alkalis, outperforming other polymers such as PET and PE. Specifically, it demonstrates stable performance against chemicals such as acetone (100%, 20°C), benzene (100%, 20°C), and chloroform (20%). This characteristic makes it ideal for use in harsh chemical environments such as chemical plants and manufacturing sites. Additionally, the PS type is available in basis weights of 16 to 106.2 g/m² and thicknesses of 29 to 195 μm, accommodating a variety of applications. *For more details, please refer to the PDF document or feel free to contact us.*

• Paper and pulp products

Hirose Paper Co., Ltd.'s PPS fiber 100% wet non-woven fabric "PS type" uses PPS (polyphenylene sulfide), a super engineering plastic. This material has a very high heat resistance with a melting point of 280°C and a maximum continuous use temperature of 200-220°C, which is superior compared to other polymers such as PET and PE. This characteristic makes it ideal for use in the energy and mobility sectors, where stable performance is required in high-temperature environments. Additionally, PPS has heat resistance similar to PTFE, a type of fluorinated compound (PFAS), contributing to the reduction of environmental impact. Furthermore, the PS type can be processed into thicknesses ranging from 29 to 195 μm, accommodating various applications. *For more details, please refer to the PDF document or feel free to contact us.*

• Paper and pulp products

The "PS type" is a wet non-woven fabric made from 100% PPS fiber (polyphenylene sulfide). It demonstrates excellent performance in heat resistance, steam heat resistance, chemical resistance, thermal insulation, and flame retardancy, making it suitable for filter substrates for water, oil, and air, as well as tape substrates. Additionally, it shows excellent hydrolysis resistance to steam, maintaining over 90% strength retention even at 160°C in an autoclave. 【Features】 ■ Heat resistance ■ Thermal insulation ■ Steam heat resistance ■ Flame retardancy ■ Chemical resistance *For more details, please refer to the PDF document or feel free to contact us.

• Paper and pulp products

The "TH type" is a wet non-woven fabric made of 100% polyester, featuring characteristics such as dimensional stability and resin impregnation. It comes in high-density 05TH, low-density 15TH, and ultra-high-density S, with thermal dimensional stability stable up to 200°C. Additionally, due to its high smoothness and resin adhesion, it can be used not only for industrial applications but also across a wide range of other fields. 【Features】 ■ Printability and insulation ■ Dimensional stability ■ Chemical resistance ■ Weather resistance ■ Smoothness *For more details, please refer to the PDF document or feel free to contact us.

• Paper and pulp products

The "VN type" is an extremely distinctive wet non-woven fabric made of 100% strongly bonded vinylon fibers. In addition to high strength, it exhibits numerous excellent properties such as fold resistance, abrasion resistance, chemical resistance, oil resistance, corrosion resistance, and heat resistance. It is suitable for applications such as battery separators, civil engineering materials, plywood reinforcement materials, and acoustic components. 【Features】 ■ High strength ■ Fold resistance ■ Heat resistance ■ Chemical resistance (alkaline) ■ Abrasion resistance *For more details, please refer to the PDF document or feel free to contact us.

• Paper and pulp products

The "HOP type" is a wet non-woven fabric made of 100% polyolefin, which is finer and consists of single fibers compared to dry types. The polyolefin fibers are core-sheath fibers of PP/PE, where the PE sheath melts on the dryer surface, firmly bonding the fibers together without the use of any adhesives. Additionally, the sealing temperature is around 140°C. Since no chemicals are used and bonding can be achieved through heat, it can be safely used for food and medical applications. 【Features】 ■ Heat sealability (both sides can be heat sealed at approximately 140°C) ■ Thermoforming ■ Hydrophobic ■ Electrical insulation ■ Oil absorption ■ Chemical resistance *For more details, please refer to the PDF document or feel free to contact us.

• Paper and pulp products

The "HOS type" is a wet non-woven fabric developed as a food packaging material. We offer "HOS laminated products," which are non-woven fabrics made of 100% polyester fibers laminated with polyethylene, and "HOS-PF products," which are non-woven fabrics made from a blend of wood pulp and polyester fibers that are not laminated. Since no PVA or chemicals are used, both are suitable for food packaging paper and can be heat sealed. 【Features】 <HOS Laminate> ■ One-side heat sealable at approximately 140°C ■ Excellent printability ■ Superior strength in both dry and wet conditions ■ More water-resistant than rayon laminates, with less impact from condensation and less prone to tearing *For more details, please refer to the PDF document or feel free to contact us.

• Packaging Bags

The "EP type" is a 100% wet non-woven fabric with excellent heat sealability made of polyester on one side and a combination of polyester and polypropylene on the other side. It features high wet strength, strong heat seal strength, no reduction in strength during boiling, good wet shape retention, and is tasteless and odorless. Additionally, it does not use any chemicals, has higher water resistance than rayon paper, and is difficult to tear, making it suitable for applications such as coffee filters and tea bags. 【Features】 ■ Does not lose wet strength ■ Strong heat seal strength ■ No reduction in strength during boiling ■ Good wet shape retention ■ Tasteless and odorless *For more details, please refer to the PDF document or feel free to contact us.

• Paper and pulp products

By combining the conventional wet non-woven fabric layer with the nano-fiber layer, we were able to significantly improve processing without losing the excellent properties of the nano-fibers. 【Features】 ● Since it is a spinning method that does not use nozzles, there is no decrease in spinning speed due to nozzle clogging. ● It is easy to increase the spinning area, allowing for a larger spinning quantity. ● By unitizing the spinning section that generates nano-fibers, it is possible to average the spinning quantity and reduce weight variation. ● It is possible to directly spin nano-fibers onto substrates such as non-woven fabrics, making it easy to combine with existing non-woven fabrics. ◆◇ For more details, please request materials or feel free to contact us ◇◆

• others

Non-woven fabric refers to cloth that is processed into sheet form by entangling the fibers of the raw materials used, and it has the characteristic that its functions vary depending on the type of materials used. In this article, we will take a detailed look at the specific types of materials that serve as the raw materials for non-woven fabric and how each material affects the functions of non-woven fabric. 【Table of Contents】 1. Classification and Characteristics of Materials 2. Natural Fibers 3. Chemical Fibers 3-1. Synthetic Fibers 3-2. Regenerated Fibers *For detailed content of the column, please refer to the related links. We are also offering a presentation document about Hirose Paper's wet non-woven fabric, which can be downloaded from the link below.

• Other polymer materials

Non-woven fabric refers to fabric that is processed into sheet form by entangling fibers, and it is a very unique material that exhibits various functions depending on the differences in raw materials and manufacturing methods. This page will provide a detailed explanation of how non-woven fabric is used in various applications, from everyday products to industrial uses such as automobiles. 【Table of Contents】 1. Overview of the manufacturing process of non-woven fabric 2. Specific applications by classification 2-1 Everyday related uses 2-2 Medical and hygiene uses 2-3 Industrial uses (for vehicles) 2-4 Other industrial uses 2-5 Civil engineering and construction uses 2-6 Others *Detailed content of the columns can be viewed through related links. We are also offering introductory materials on Hirose Paper's wet non-woven fabric, which can be downloaded from the link below.

• Other polymer materials

The characteristics of non-woven fabric are greatly influenced by the arrangement and bonding state and strength of the fibers, but these elements are determined by the choices and operations in the manufacturing process. This page explains the general manufacturing process of non-woven fabric from two perspectives: "the order of the manufacturing process" and "the main methods used in each process and their impact on non-woven fabric." 【Table of Contents】 1. Overview of the non-woven fabric manufacturing process 2. Types and characteristics of methods used in the web formation process of non-woven fabric 3. Types and characteristics of methods used in the web bonding process of non-woven fabric 4. Types and characteristics of methods used in the finishing treatment process of non-woven fabric *Detailed content of the column can be viewed through related links. We are also offering introductory materials on Hirose Paper's wet non-woven fabric, which can be downloaded from the link below.

• Other polymer materials

Non-woven fabric is widely used not only for everyday applications such as masks and diapers but also as industrial materials, making it an indispensable material in our lives. This page provides a detailed explanation of what non-woven fabric is. 【Table of Contents】 1. What is non-woven fabric 2. Applications of non-woven fabric 3. Characteristics of non-woven fabric (Advantages and Disadvantages) 3.1. Advantages of non-woven fabric 3.2. Disadvantages of non-woven fabric 4. History of non-woven fabric 5. Raw materials for non-woven fabric 5.1. Natural fibers 5.2. Synthetic fibers *For detailed content of the column, please refer to the related links. We are also offering a presentation on Hirose Paper's wet non-woven fabric technology, which can be downloaded from the link below.*

• Other polymer materials

Polyester fibers are highly functional chemical fibers that are often used as raw materials for clothing and curtains, and they are also widely used as raw materials for non-woven fabrics. This article will provide a detailed explanation of the characteristics, advantages and disadvantages, applications, and history of non-woven fabrics made from polyester fibers. *For more detailed content of the column, please refer to the related links.*

• Other polymer materials

In recent years, regulations on PFAS (per- and polyfluoroalkyl substances) have been rapidly advancing in various regions around the world, leading to a growing demand for alternative materials in the industrial sector. This article will provide a detailed explanation of potential materials that can serve as alternatives to PFAS, along with the background of the regulations on PFAS. *For more detailed information, please refer to the related links. We are also offering materials on promising wet non-woven fabrics as alternatives to PFAS, which can be downloaded from the link below.*

• Other polymer materials