What is the antioxidant effect of ferrite magnets?(1)

Contact more customers, there will always be a lot of questions, such as a user asked, ferrite magnet can be saved for how long? Does oxidation of ferrite affect its properties?

Today I will reply to these two questions.

 

Ferrite, also known as permanent magnet ferrite, chemically known as ferric oxide, is already an oxide of iron, and it is difficult to be oxidized again. For the magnetic ring, its characteristics are long-term, there will be no deterioration, but put for a long time, there will be residue on the surface - some powder, this is a normal phenomenon, does not hinder its characteristics.

 

As we all know, ferrite magnet is made of a variety of magnetic materials, so put for a long time, the magnet will appear powder, which is what we say in the industry oxidation, but this does not affect its magnetic properties and impedance characteristics. The magnet will also be easy to oxidize when it encounters moisture, especially in wet weather. If the magnetic ring of the packaging is not sealed well and the moisture runs into the carton, it will also lead to oxidation of the magnetic ring.

 

Many people will ask, the magnet in production is not through water to clean the surface? How can also be afraid of water, of course, the magnetic ring is through the water to wash off the dirty surface, but after cleaning, the magnet to enter the oven to dry water, so just made of the magnet, not oxidation, and just washed out of the magnetic ring appearance, shiny!

 

Recommendation for Magnet Selection

Recommendation for Magnet Selection

 

1. Project Assessment

Begin by clarifying the application requirements:

 Application Scenario: Identify the purpose (e.g., industrial machinery, consumer electronics, medical devices).

 Force Requirements: Determine the necessary magnetic strength (e.g., high-precision motors require strong magnets like NdFeB)

 Temperature Range: Select materials based on operating temperatures. For example:

 N-series NdFeB: Suitable for 80°C.

 H/SH/UH/AH-series NdFeB: Higher temperature resistance (up to 230°C)

 Environmental Conditions: Consider corrosion risks (e.g., NdFeB requires nickel or epoxy coatings for humidity resistance)

2. Magnet Material Selection

Compare key magnetic materials (weakest to strongest):

1. Rubber Magnets: Low cost, flexible (ideal for signage, calendars, crafts)

2. Ferrite Magnets: Affordable, widely used in motors and speakers

3. AlNiCo Magnets: High-temperature tolerance (~500°C), stainless appearance (suitable for instruments)

4. Samarium Cobalt (SmCo): Heat-resistant (150300°C), brittle but durable in harsh environments

5. Neodymium (NdFeB): Highest magnetic strength, cost-effective, but prone to oxidation (requires coatings)

3. Supplier Communication Strategy

When contacting clients (e.g., manufacturers or distributors):

 Key Questions to Ask:

 Do you provide customized shapes (e.g., discs, rings, blocks)?

 What certifications do your products hold (e.g., ISO, RoHS)?

 Can you share test reports for magnetic performance and durability?

 Sample Request: Request samples to verify quality and compatibility with your application.

 Cost and Lead Time: Compare pricing and delivery timelines across suppliers.

 

5 Tips for Designing EVA Inserts That Fit Perfectly

When it comes to protecting valuable products during storage or transport, EVA foam inserts are one of the most famous choices.  They provide excellent cushioning, durability, and a tidy, professional appearance.  However, achieving the perfect fit requires more than just cutting foam to shape.  It is about precision design, smart material selection, and attention to every detail.

 

At Yisi Packing, we specialize in OEM and ODM EVA packaging solutions, helping clients design inserts that protect, display, and enhance their products.  Based on our years of solid experience, here are five essential tips for designing EVA inserts that fit perfectly.

 

1. Start with Accurate Measurements

 

The most important step in creating a perfect EVA insert is obtaining precise product dimensions.  Even a few millimeters of difference can affect how securely an item fits.


Before design or production begins:

 

  • Use digital calipers or 3D scans to measure your products.

  • Consider every dimension, it is including protruding parts, curves, or handles.

  • If you have multiple products in one case, plan for equal spacing to ensure balance and visual appeal.

 

At Yisi Packing, our design team often requests physical samples or detailed CAD drawings from clients.  This ensures that every insert is engineered to fit exactly, avoiding loose gaps or tight squeezes that could damage products.

 

2. Choose the Right EVA Foam Density

 

EVA foam comes in a range of densities, and selecting the right one directly impacts the protection level and overall appearance.

 

  • Low-density EVA is soft and lightweight, it is ideal for lightweight or fragile products such as cosmetics, small electronics, or promotional packaging.

  • Medium-density EVA offers balanced cushioning and support, making it a great choice for tools, instruments, or sports accessories.

  • High-density EVA is firm and durable, it is perfect for precision instruments, cameras, or heavy equipment.

 

At Yisi Packing, we help customers match the right foam type and density for their product’s specific requirements, ensuring optimal performance and a professional finish.

 

3. Optimize the Insert Layout for Function and Aesthetics

 

Designing EVA inserts isn’t only about protection, it’s also about presentation.  A well designed layout can elevate your brand image.


Here are a few layout tips:

 

  • Arrange products in a logical sequence, especially for toolkits or multi piece sets.

  • Leave consistent spacing between items for visual harmony.

  • Add finger notches or pull tabs for easier removal.

  • Include cut outs for accessories or cables to keep everything organized.

 

Yisi Packing’s design team uses CAD software to visualize the insert layout and adjust positioning before production.  This allows us to confirm both the appearance and functionality with clients before cutting the first piece.

 

4. Consider Lamination and Surface Finishes

 

A high quality finish makes your EVA packaging stand out.  You can enhance both beauty and durability through lamination or surface treatments such as:

 

  • Velvet or fabric lamination for a luxury, soft touch feel.

  • PU or nylon lamination for added durability and water resistance.

  • Color matching and logo embossing to reflect your brand identity.

 

These options not only improve the visual appeal but also extend the product’s lifespan.  Yisi Packing offers multiple lamination choices, allowing customers to achieve the perfect balance of protection and style.

 

5. Prototype and Test Before Mass Production

 

Even with perfect design files, small adjustments may still be needed.  Always create a prototype before full scale production.  This allows you to test:

 

  • Product fit and ease of removal

  • Foam density and comfort

  • Overall visual appearance and color consistency

 

At Yisi Packing, we provide rapid sample prototyping services so clients can physically evaluate their inserts and suggest improvements before confirming the final mold.  This step minimizes costly revisions and ensures a perfect result.

 

6. Final Advice

 

Designing EVA inserts that fit perfectly requires a mix of precision, experience, and innovation.  From accurate measurements to careful material selection and thorough testing, every step contributes to superior packaging performance.

 

As a professional OEM EVA packaging manufacturer, Yisi Packing helps clients around the world create customized EVA inserts for tools, electronics, cosmetics, and many other industries.  Whether you need simple foam cut outs or complex multi layer designs, our team ensures your products are protected and presented perfectly.

What Makes EVA Foam the Best Material for High Precision Custom Cases?

When our customers consider creating high quality, custom protective cases, EVA foam (Ethylene Vinyl Acetate) stands out as one of the most reliable materials available.  Whether it’s for electronics, medical devices, or high end equipments, the precision, durability, and versatility of EVA foam make it the preferred choice for many industries.  At Yisi Packing, we specialize in designing and manufacturing custom EVA foam cases that provide the highest level of protection for your products, ensuring they arrive at their destination in top condition.  But what exactly makes EVA foam the best material for custom cases?  Let’s go into its unique qualities and why it’s an ideal option for your packaging needs.

 

1. Shock Absorption and Impact Resistance

 

One of the key reasons why EVA foam is so popular in protective case design is its superior shock absorption properties.  The foam is capable of absorbing and dispersing impact forces, preventing damage to delicate and valuable items inside.  Whether you’re shipping electronics like cameras and laptops or sensitive medical equipment, the cushioning effect of EVA foam ensures that external forces like drops or bumps won’t cause damage.

 

At Yisi Packing, we use cutting edge techniques to craft foam inserts that snugly fit around your product’s contours, providing targeted protection against accidental shocks or impacts.  This high precision fit ensures that your items stay safe and secure, even during rough handling or transport.

 

2. Lightweight Yet Durable

 

Despite its remarkable protective qualities, EVA foam is very lightweight.  This makes it ideal for businesses that want to minimize the weight of their packaging while still providing all round protection.  Unlike heavy, rigid alternatives like metal or hard plastics, EVA foam maintains a lightweight profile, which can also contribute to reducing shipping costs.

 

In addition to being light, EVA foam is also durable and can withstand wear and tear over time.  It doesn’t crack or degrade under normal conditions, making it suitable for long term use.  Whether you're creating custom cases for consumer electronics, industrial tools, or instruments that will be used frequently, EVA foam ensures long lasting durability without adding unnecessary bulk.

 

3. Customization and Precision Cutting

 

One of the outstanding features of EVA foam is its versatility in customization.  Unlike many other materials, EVA foam can be easily cut, shaped, and molded to fit the exact specifications of your product.  At Yisi Packing, we use advanced precision cutting techniques such as laser cutting and CNC routing to create details foam inserts that perfectly match the dimensions and contours of your items.

 

This ability to create highly detailed, custom shapes ensures that every case provides a perfect fit, which is critical for products that require extra protection.  Whether you need foam inserts for a small piece of medical equipment or a large, complex device, we can craft the ideal solution for your needs.

 

4. Water Resistance and Insulation Properties

 

Another reason EVA foam is favored for custom cases is its excellent water resistance and insulation properties.  The material naturally repels moisture, preventing water damage to sensitive products during transportation or storage.  This makes it an ideal choice for cases that will be exposed to extreme weather conditions or humid environments, such as outdoor tools or electronics.

 

Additionally, EVA foam provides thermal insulation, which helps regulate the temperature inside the case.  This can be particularly valuable for products that need to be kept within a specific temperature range, such as batteries, precision instruments, or medical supplies need the temperature control.

 

5. Eco Friendly and Non Toxic

 

As businesses and consumers become increasingly concerned with sustainability, the eco friendliness of EVA foam offers another significant advantage.  Unlike other plastic based materials, EVA foam is free from toxic chemicals like PVC, making it a safer option for both consumers and the environment.  It is also recyclable in many cases, offering a more sustainable alternative to traditional plastic cases.

 

At Yisi Packing, we are committed to minimizing our environmental impact.  By using EVA foam, we ensure that our custom cases not only provide the best protection for your products but also align with global sustainability standards.

 

 

In summary, from its shock absorbing properties to its lightweight and durable nature, EVA foam is certainly one of the best materials for creating high precision custom cases.  Its versatility, ability to be easily customized, and eco friendly attributes make it an excellent choice for businesses across various industries.  At Yisi Packing, we specialize in delivering top notch EVA foam case solutions that offer reliable protection for your valuable products.  No matter the size, shape, or complexity of your items, we can design and manufacture a custom EVA foam case that meets your exact specifications, ensuring that your products arrive safely and securely.

How to Design a Perfect Outdoor Living Space with Goodwin Furniture's Sofa and Dining Sets

Designing the perfect outdoor living space involves creating a harmonious blend of comfort, style, and functionality. Goodwin Furniture offers an exquisite range of sofas and dining sets that can transform any patio or backyard into a serene oasis.

Start by selecting a suitable area in your outdoor space, ensuring it is well-lit and has a view. Next, choose a Goodwin sofa set that complements your aesthetic—whether modern, rustic, or coastal. Opt for weather-resistant fabrics and finishes to ensure durability against the elements. Arrange the sofas to create an inviting seating area, perfect for relaxation or entertaining guests.


Incorporate a dining set from Goodwin Furniture to enhance your outdoor gatherings. A sturdy table paired with comfortable chairs invites alfresco dining experiences. Consider adding an umbrella or pergola for shade, making the space usable throughout the day.


To complete the look, accessorize with outdoor cushions, throw blankets, and decorative lighting. Greenery, such as potted plants or climbing vines, adds life and color. With Goodwin Furniture's stylish pieces, your outdoor living space can become a tranquil retreat, ideal for both leisure and socializing.


Quality Outdoor Furniture  will bring durable beauty over time and safety for users. With a variety of models, designs, materials and different prices of outdoor furniture products,Goodwin outdoor furniture provide you with pieces that meet your expectations for quality, comfort, and design , with additional pieces, colors, and fabric options available by special order. Please inquire for lead times on orders.

Elevate Your Tastings with Single-Wall Mini Paper Cups

When it comes to olive oil tastings, espresso samples, or any small-volume beverage service, presentation matters — and so does sustainability.  The single-wall mini paper cup offers a sleek, minimalistic option that doesn’t distract from the flavor experience.   Lightweight and simple, these cups provide an elegant, eco-friendly alternative to heavier or coated cups, preserving the true aroma and character of your liquid.

 

Designed for Olive Oil Tasting, Coffee Sampling & More

Our single wall 2.5 oz, 3 oz, 3.5 oz, 4 oz olive oil tasting / mini coffee paper cup is engineered for precision and practicality.   The uncoated, single-wall construction is ideal for short-duration sampling: it’s disposable and yet fully functional for delicate tastings.   Whether you’re offering extra virgin olive oil flights or espresso shots, this cup keeps things simple and clean.   The compact size is perfect for tastings, sampling events, specialty cafés, or promotions.

 

Perfect for Tastings, Trade Shows, and Cafés

If your business hosts tasting events, food fairs, or boutique café offerings, these mini paper cups are an excellent choice.   Their form factor is ideal for pour-over presentations or oil flavor profiles without overwhelming customers with large volumes.   Because they’re disposable, cleanup is easy — and because they’re paper, they make a more sustainable impression than plastic.   Guests can focus on flavor, you can focus on service, and waste is kept to a minimum.

 

biosettings: Where Sustainability Meets Service

At biosettings, we’re committed to delivering eco-friendly products that don’t compromise on purpose or performance.   Our mini single-wall paper cups reflect that philosophy: simple, functional, and planet-friendly.   Choosing biosettings means choosing a brand that cares about every detail — from your tasting experience to environmental impact.

Frequently asked questions about PE coated paper rolls

PE coated paper roll refers to a roll of paper that has been coated with a layer of polyethylene (PE) on one or both sides. This coating provides the paper with enhanced durability, moisture resistance, and heat-sealing properties. It is commonly used in various industries for packaging, labeling, and food service applications.

Here are ten frequently asked questions about PE coated paper rolls:

1. What is the purpose of the polyethylene coating on the paper roll?
The polyethylene coating provides moisture resistance, durability, and heat-sealing capabilities to the paper.

2.What industries commonly use PE coated paper rolls?
PE coated paper rolls are widely used in the packaging, labeling, food service, and printing industries.

3.How does the polyethylene coating protect against moisture?
The polyethylene coating acts as a barrier, preventing moisture from penetrating the paper and affecting its quality and integrity.

4.Can PE coated paper rolls be recycled?
The recyclability of PE coated paper rolls depends on the specific recycling capabilities of the local recycling facilities. It is important to check with local recycling guidelines.

5.Are PE coated paper rolls safe for food contact?
PE coated paper rolls specifically designed for food applications meet safety regulations and are considered safe for direct food contact.

6.Can PE coated paper rolls be customized or printed on?
Yes, PE coated paper rolls can be customized with printing, including logos, branding, product information, or designs.

7.What are the common sizes and thicknesses available for PE coated paper rolls?
PE coated paper rolls come in various sizes and thicknesses, ranging from small widths suitable for individual portions to larger rolls used for industrial purposes.

8.Can PE coated paper rolls withstand high temperatures?
The polyethylene coating on the paper provides heat-sealing properties and can withstand moderate to high temperatures, making it suitable for heat-sealing applications.

9.How long can PE coated paper rolls typically last?
The lifespan of PE coated paper rolls depends on storage conditions and usage. When stored properly, they can last for an extended period without compromising their quality.




What advantages of PE coated ice cream cone paper

PE coated ice cream cone paper offers several advantages in the ice cream industry. Firstly, its excellent moisture resistance ensures that the cone remains crispy and intact, even when filled with melting ice cream. This helps to enhance the overall eating experience for consumers.

The PE coating provides a barrier against grease and oil, preventing the cone from becoming soggy and maintaining its structural integrity. This allows for easy handling and transportation without the risk of the cone breaking or losing its shape.

PE coated ice cream cone paper is food-grade and safe for direct contact with food, ensuring the hygiene and safety of the ice cream product. It meets stringent quality standards and regulations, providing peace of mind to both manufacturers and consumers.

PE coating on the paper enhances the cone’s heat resistance, enabling it to withstand high temperatures without deforming or compromising its quality. This is particularly important for ice cream shops or vendors serving freshly baked cones.

PE coated ice cream cone paper is environmentally friendly and biodegradable. It offers a sustainable alternative to traditional plastic-coated materials, reducing the environmental impact and contributing to a more sustainable ice cream industry.

The advantages of PE coated ice cream cone paper make it a preferred choice for manufacturers and consumers alike. Its moisture resistance, grease resistance, food-grade safety, heat resistance, and eco-friendliness make it an ideal packaging solution for delicious and enjoyable ice cream treats.

What Difference Between Flexible Packaging and Rigid Packaging

Both flexible and rigid packaging have a wide range of uses in the present packaging industry. They have exclusive, as well as overlapping areas of application. The differences, however, lie in construction, durability, customizability, and pliability.

Weight and Size of Packaging

When it comes to the weight of the packaging, rigid packaging is heavier than flexible packaging. That’s because rigid packaging is often made from denser and thicker materials. For example, paperboard boxes, tin cans, or glass bottles. Flexible packaging such as sealed pouches, on the other hand, uses lighter materials such as plastic or polypropylene.

The size of the packaging depends on the requirements. Rigid packages generally take up more space as they cannot be squeezed together when bundled. Rigid packaging is meant to prevent the deformation of its inner contents. Flexible packages are flat, can bend easily or be bundled together to save space. This makes flexible kraft paper or poly mailers the go-to solutions to ship soft goods.

Durability and Barrier Properties

Rigid packaging better protects its contents. But, it’s prone to external deformation. For example, the surface can be easily dented or scratched, damaging the surface or print. Flexible packaging does not dent or deform easily. Although such packs could be damaged during shipping if pierced by a sharp object, flexible packaging is less likely to be affected by cosmetic abrasion.

Fragile products are usually shipped using rigid packaging. Electronic items— such as computer processors, smartphones, cameras, televisions— come in rigid packaging coupled with protective packaging like styrofoam or air pillows. In all these cases, the cost of rigid packaging is often a very small fraction of the actual product cost.

Flexible packaging is often used in low-cost products in the food and cosmetics industry. Chips, biscuits, bread, milk, frozen food, sauces, creams – all come in flexible packaging.
Flexible Packaging in the Food Sector:

Flexible packaging is dominating flexible food packaging trends. That’s because of its protective properties. For example, retort pouches are becoming increasingly popular owing to their construction. They are made up of multiple layers of polymers and often metalized sheets, such as aluminium. This offers chemical and thermal shielding to the products on the inside. The pack offers an air-tight barrier, prevents exposure to light and heat, and is temperature tolerant to help retain the freshness of its contents. A classic example is the Paper Boat pouch that’s broken the conventional trend of using rigid cartons for beverages to adopt flexible packaging.



However, there are exceptions too. The Pringles packaging, for instance, is rigid packaging made from tin and cardboard, with an inner layer that offers great protection.

Get more food packaging solution,best kraft paper container,printed snack boxes from www.dongsenpaper.com.