Why is White Glue Indispensable in Schools and Office？

White glue, this milky white viscous liquid, runs through almost everyone's memories of growth - from the first handmade greeting card in kindergarten, to model making in college, to document organizing in the office, it has become one of the most popular tools with its gentle characteristics and reliable viscosity.

Regarding Foska white glue, we have different sizes for your choice, 40g,60g,100g,125g,225g and 500g. Our minimum order quantity is only low to one carton and our quality is very good.

Foska White Glue

The advantages of our good quality white glue

1. Safe and environmentally friendly, non-toxic and harmless

Adopting a water-based formula, the main ingredients are PVA (polyvinyl alcohol) and natural plant glue, which do not contain harmful substances such as formaldehyde and benzene, and comply with the safety standard 1 for children's stationery.

2. Transparent and traceless, without affecting aesthetics

Completely transparent after drying, without whitening or curling edges, especially suitable for fine handmade crafts such as greeting cards, hand accounts, models, etc

Good Quality White Glue

The usage scenario of stationery white glue:

Learning scenarios: student handicrafts, art assignments, book repairs

Office scenario: document binding, notice pasting, temporary labeling

DIY lifestyle: handicrafts, home repair, creative decoration

Professional use: model making, fabric bonding, artistic creation

Stationery White Glue

Why do skin care products tend to change color in glass bottles?

Contents change color or evaporate? Is the barrier property of the glass bottle not good enough?

Many customers have reported problems such as discoloration, abnormal odor, and decreased concentration of skin care products during product sales or use. This is especially true for skin care formulas containing essential oils, active ingredients, or natural plant extracts. In other words, during product sales or daily use, consumers often report that skin care products have changed color; some products emit abnormal odors, which not only affects the user experience, but may also have an adverse effect on skin health; and some customers have found that the concentration has decreased after use, which undoubtedly reduces the effectiveness of the product.

Cause analysis

These problems are often closely related to the poor light-blocking ability and airtightness of glass bottles. Although transparent glass has a good visual effect, it is easy for external factors such as ultraviolet rays, oxygen, and water vapor to affect the stability of the contents when exposed to strong light, temperature fluctuations, or repeated opening and closing. In addition, if the bottle mouth sealing structure is not designed properly, it will also accelerate the contact between the contents and the air, causing the components to degrade or volatilize.

Solution

1. Choose dark glass bottles: Using brown, green or black glass bottles can significantly reduce UV penetration and effectively delay the oxidation and deterioration of products.

2. Spray the inner film on the bottle: By spraying a chemically stable coating on the inner wall, the glass can enhance its ability to isolate the contents, prevent the components from being adsorbed on the bottle wall or reacting with the glass in trace amounts, thereby extending the shelf life of the product.

3. Use vacuum pump bottles or airtight dropper bottles: The vacuum structure design can reduce air residue during filling and prevent external air from flowing back during use, which is particularly suitable for packaging highly active skin care products such as essence skin care products.

4. Optimize the bottle mouth sealing structure design: Add a variety of sealing structures such as sealing gaskets, precision screw caps and closed sleeves to improve the overall air tightness, effectively block the entry of air and water vapor, and avoid the volatilization and contamination of internal substances.

Compressor - The Heart of An Air Conditioner. Do You Know How It Works?

As for the air conditioners, most people will notice the airflow, then the temperature and the remote control. Hardly had someone mention the core part—the compressor. It is not seen directly like a shell, but like the heart of a human, striving to make the whole system work.

Now let's go deep into the air conditioners and get to know this silently beating heart.

What is the compressor?

The function of the compressor is to compress the low-pressure gas (refrigerant) into high-pressure gas and push it to circulate in the air conditioning system, achieving cooling/heating exchange.

Simply, the duty of the compressor is to pump and supply the cold air or drive to heat. The air conditioner cannot work without the compressor.

How does the compressor work in the air conditioner?

A whole air conditioning circulation consists of four core parts: the condenser, the compressor, the evaporator, and the expansion valve. In which the compressor is in the middle of the circulation.

Air Conditioning System

Why does it say the compressor is the heart of the air conditioner?

Continuous operation: Once the compressor works, it normally keeps working for a long time, like our heart, to maintain motivation continuously.

Energy efficiency ratio: The better the performance of the compressor, the better the energy-saving effect of the air conditioner.

Lifespan: The compressor determines largely whether the air conditioner is good or not.

Cooling/heating speed: If the compressor is powerful, then the air conditioner will cool and heat quickly and stably.

Types of the compressors for air conditioning

Model	Specifications	suitable machines
Rotary compressor	Compact structure, high efficiency, moderate price	Household wall mounted air conditioners and cabinet units
Piston compressor	Low initial cost, but high noise, low efficiency	Early models, now less used
Scroll compressor	Stable operation, low noise, high energy efficiency	Mid- to high-end commercial air conditioners

How to choose an air conditioner with a good compressor?

When choosing air conditioners, it is possible to check the following:

Compressor brands, such as GMCC, MITSUBISHI, HITACHI, PANASONIC, etc.;

Adopt inverter technology, which will be more energy-saving;

With an energy efficiency certificate, trusted quality with high efficiency and stability;

Longer warranty period from the manufacturer and reliable quality.

Take our KRG as an example. Many of our models use compressors from well-known brands and have passed CE, SASO, and other certifications to ensure stable and efficient operation of the air conditioning system.

The compressor is not very visible, but it holds the core of the air conditioner's performance. It determines whether the cooling and heating are fast and stable and also directly affects the power consumption and machine life. As a consumer, understanding the operating principle and importance of the compressor can make you buy with more confidence and use with more peace of mind!

Why Custom EVA Cases Are the Choice for Startups Launching New Products

Launching a new product is a big milestone for any startup. Every detail - from the design to the packaging - plays a important role in making a strong first impression. That’s why more and more startups are turning to custom EVA cases to package and protect their products.

At Yisi Packing, a leading EVA case manufacturer in China, we’ve helped startups across various industries create tailored packaging solutions that boost brand image, reduce damage risk, and support successful launches.

1. Professional Presentation That Builds Trust

In competitive markets, product presentation matters. A custom EVA case gives your product a premium, polished appearance right out of the box. The molded interior holds your item securely, while the sleek exterior reflects your brand’s professionalism and attention to detail. For startups trying to stand out, this kind of packaging elevates your credibility from day one.

2. Cost Effective and Lightweight

Startups often need to balance quality and cost. EVA cases are lightweight yet durable, offering excellent protection at a fraction of the cost of heavier materials like aluminum or wood. Lower shipping costs and fewer product returns due to damage can save your business money - especially important in the early stages.

3. Customizable for Any Product

Whether you're launching a tech gadget, medical device, beauty tool, or educational kit, EVA cases can be fully customized. Choose your shape, color, branding, zipper type, handle, and more. At Yisi Packing, we help startups design their cases from the ground up, ensuring your packaging is as unique as your product.

4. Fast Prototyping & Scalable Production

We understand that startups need speed and flexibility. Our team offers quick prototyping, allowing you to test your packaging before committing to large volumes. When you’re ready to scale, our efficient production process ensures consistent quality and fast turnaround times.

Ready to Launch with Custom EVA Packaging?

Yisi Packing is here to help you bring your vision to life. With years of experience and a commitment to quality, we’re the EVA case manufacturer that startups trust.

📩 Contact us today for a free consultation or quote, and let’s create packaging that helps your product succeed.

Is ECO Mode Truely Save Energy?

In summer, the most important appliance is the air conditioner. Most of the users will notice the ECO mode on the remote. It demonstrates itself as an energy-saving air conditioner or eco-friendly. However, a lot of people doubt whether it truly saves energy or it's just a slogan or gimmick.

What is ECO mode?

ECO, which originated from "economy," means energy-saving or cost-saving. The ECO mode of the air conditioner normally achieves automatic adjustment of temperature, wind speed, and the working efficiency of the compressor to keep comfort and reduce electricity consumption at the same time. In a word, it is a mode that is not too hot and not too cold but just enough.

inverter air conditioner

Experience with the ECO mode

Significant energy-saving effect: If you want to use the air conditioner for a long time, then choosing the ECO mode will surely reduce power consumption.

Moderate comfort: Though room temperature will be higher than normal modes, the human body can fit it well, particularly when sleeping.

Lower noise: Less frequent start-ups on the compressor; the operation noise is decreased clearly, which is much more suitable for sleeping-sensitive users.

Who needs ECO mode?

Families sleep with the air conditioner at night.

Users who are non-sensitive to temperature.

Families who rent or pursue energy-saving.

Consumers with environmental protection recognition.

Occasions that do not need ECO mode

Places that require fast cooling/heating.

Families with the elderly and kids who are sensitive to temperature.

High temperature difference, high operation burden period.

Is it worth turning on ECO mode?

Yes.

The ECO mode can bring about 20%-30% energy savings in most daily use scenarios, effectively reducing electricity bills without sacrificing too much comfort. So, next time you turn on the air conditioner, you might as well click the "ECO" button and let it silently save every kilowatt-hour of electricity for you!

4 ways to solve glass bottle damage during transportation

In the skin care industry, glass bottle packaging is widely used in high-value-added products such as essences, creams, lotions, and facial oils due to its high-end texture, excellent chemical stability (strong barrier properties and good sealing properties) and environmentally friendly properties. These characteristics make it an ideal choice for enhancing product image and ensuring quality. However, brands or buyers often face a series of specific problems in the process of transporting glass packaging materials, which may affect the final product experience and brand image.

Problem manifestations:

1. During the process of receiving, transporting (especially international transport) or filling, the bottle body is broken, shattered, cracked, corners are broken, and the edge of the bottle mouth is broken.

2. It leads to high loss rate, affecting cost and product availability.

Main reasons:

1. Insufficient bottle material and strength: The glass is too brittle, and high borosilicate glass, high-strength soda-lime glass or annealed reinforced/thick-walled glass are not selected.

2. Bottle structure design defects: The bottom of the bottle is too thin or the structure is unreasonable, and the pressure and impact resistance are poor.

3. Insufficient packaging protection: The outer box and inner packaging (such as inner tray, cushion) fail to provide effective buffering. There is a lack of sufficient shockproof structure (such as foam cotton, pearl cotton, honeycomb paper tray, partition board) to resist vibration, impact and extrusion during logistics.

4. Improper transportation plan: Failure to adopt optimized palletizing and transportation plans (such as customized pallets, reinforced cartons).

cosmetic dropper packaging

Comprehensive solution:

1. Improve the strength of the bottle:

Choose high borosilicate glass or high-strength soda-lime glass;Use annealed glass.Thicken the bottle wall, especially optimize the bottom structure and thickness distribution, and enhance the pressure resistance and impact resistance. Choose a thick bottom pressure-resistant design.

2. Strengthen packaging protection:

Use customized high-strength outer boxes.Fill the interior with sufficient cushioning materials: such as customized honeycomb paper inner tray/paper box, foam inner tray, pearl cotton/foam cotton cushion, and partition.The packaging structure must pass the drop and pressure resistance tests.

3. Optimize transportation and testing processes:

Conduct small batch sample transportation tests to simulate the actual logistics environment, and continuously optimize the packaging design based on the test results.Use more stable transportation solutions such as customized pallets and reinforced carton palletizing.Select experienced and reliable glass bottle suppliers.

4. Risk management:

Require suppliers to implement strict factory inspection processes (including appearance, strength, etc.).Negotiate with suppliers on damaged reissue terms to reduce procurement risks.

Panyue Packing is a professional skincare packing manufacturer,since 2006.Provide one-stop cosmetic container packaging solutions.Professional export trade and design services!

From cost to environmental protection glass or plastic for cosmetic packaging?

In the cosmetics and skincare industry, the choice of packaging containers directly affects the product's cost, market positioning, brand image, user experience and even environmental image. Especially when launching new product packaging materials, "glass containers or plastic containers?" often becomes the core issue of concern to brands and packaging suppliers.

This article will compare the advantages and disadvantages of glass containers and plastic containers in depth from the dimensions of functionality, appearance texture, environmental protection, cost control, and transportation safety, which will help you make a more suitable choice.

1.Advantages and disadvantages of glass containers

advantage:

High-end texture: The glass bottle has a transparent appearance and high-end texture, suitable for positioning high-end skin care brands. It has a strong sense of classic luxury, conveying a pure, natural, professional and trustworthy image. It has high transparency and is stable and does not change color.

Good sealing: It is not easy to penetrate, can effectively protect the inner material, and is suitable for active ingredient products such as essences and creams. It has a nearly perfect barrier to oxygen, water vapor, odor, and ultraviolet rays (especially amber/green glass). It can protect the stability, efficacy and aroma of the contents (especially essential oils, VC, retinol and other oxidizable and photosensitive active ingredients) to the greatest extent.

Strong chemical stability: It hardly reacts with any cosmetic ingredients, and will not introduce impurities or absorb contents. It is highly safe and suitable for essential oils, acids, and whitening products.

Environmentally friendly and recyclable: Glass material is 100% recyclable, which is in line with the trend of sustainable development; the quality of recycled glass materials melted and remade into new bottles is almost intact, and the recycling system is relatively mature. However, glass production consumes a lot of energy, and its heavy weight leads to high carbon emissions in transportation. The recycling process also requires high energy consumption, and the treatment of glass slag produced by breakage needs to be handled with care.

2.Advantages and disadvantages of plastic containers

advantage

Lightweight and resistant to falling: suitable for carrying outside, safer transportation, and reduced risk of damage. Greatly reduces product weight, reduces transportation costs and carbon emissions. Resistant to falling, not easy to break, high safety in use, more suitable for travel, bath products and other environments where they may fall.

Flexible processing: suitable for various molding methods such as blowing and injection molding; flexible design and more diverse appearance design.

High production efficiency: lower production cost for mass production, suitable for low-end or fast-moving consumer goods.

A variety of decorative effects can be achieved: such as silk screen printing, hot stamping, painting, gradient color processing, etc., and the shape can achieve various effects from simple to high-end. Rich colors and strong visual impact.

Low cost: relatively low raw material cost; mold cost is usually lower than glass molds of the same complexity; high production efficiency (injection molding, blow molding) and low energy consumption; low transportation cost; fast filling line speed; low breakage rate.

disadvantage：

Slightly lower chemical stability: Some ingredients are prone to react with plastics. Some specific formula ingredients such as solvents, fragrances, and active ingredients may interact with plastics or additives, causing plastic swelling, cracking, deformation, discoloration, taste change, and decreased efficacy of the contents, so strict compatibility testing is required.

Environmental controversy: Although there are environmentally friendly materials such as PET and PCR, the overall recycling rate is still lower than that of glass; consumers have a negative impression of the environmental friendliness of plastics.

Relatively general texture: Even if the surface treatment is exquisite, it is still difficult to match the natural texture of glass. Transparency (such as AS, PET materials) can be close to glass, but some materials will slightly yellow over time.

Barrier properties are average: Different plastic materials vary greatly, for example, PET has better barrier properties, while PP\PE has poorer ones. Contents such as essential oils or solvents may penetrate or be absorbed by the plastic, or may be analyzed out of the product by the plastic components, and strict compatibility testing is required.

Difficulty in recycling: The recycling systems of various countries are inconsistent, and the recycling rate is generally not high; plastic mixing, compounding, additives, and label residues increase the difficulty of recycling.

How Travel Trends in 2025 Are Shaping the Demand for EVA Tech Accessory Cases

As global travel continues to rise in 2025, consumer behavior is driving a noticeable shift in the types of products travelers carry and how they protect them. One category seeing fast growing demand is custom EVA tech accessory cases, used for everything from chargers and power banks to drones and VR headsets.

At Yisi Packing, we’re seeing this change immediate as more brands seek durable, travel friendly packaging solutions. In this article, we explore the top travel trends influencing this demand and how our custom EVA cases are evolving to meet those needs.

1. Tech Heavy Travel Is the New Normal

In 2025, both leisure and business travelers are carrying more tech than ever, like portable monitors, wireless chargers, foldable keyboards, earphones, VR goggles, drones, and more.

These accessories are often delicate and expensive, making EVA foam cases ideal for protection. Lightweight, shock absorbing, and fully customizable, EVA cases are becoming essential travel companions.

2. Rise of Remote Work and Working holiday

The global rise of remote work has led to a new kind of traveler: the “digital nomad.” People are now working from beach resorts, mountain cabins, and co working hubs across the globe - and they’re bringing their gear with them.

This shift has created demand for compact, multi device cases that can organize and protect items like:

USB hubs
Cables and chargers
Hard drives
Bluetooth mouse
Mini projectors

At Yisi Packing, we’re customizing EVA interiors with cutouts, elastic bands, mesh pockets, and water resistant zippers to meet these needs.

3. Travelers Want Style and Function

Today’s consumers are looking for more than just protection. They want travel cases that match their lifestyle and brand aesthetic. Sleek finishes, personalized embossing, color matching, and modern profile are all in demand.

That’s why we offer a range of surface materials including PU leather, woven fabric, carbon fiber texture, and more - all laminated to durable EVA foam.

4. Air Travel Restrictions Drive Smart Design

With airlines tightening carry on limits and electronics regulations, travelers need accessory cases that are compact, organized, and compliant. A well designed EVA case can reduce mess and streamline security checks.

We help brands create travel cases that are TSA-friendly, lightweight, and custom sized to fit their devices perfectly - helping travelers avoid bulky backpacks or disordered cables.

5. Sustainability Is in the Spotlight

Eco conscious travelers are now considering sustainability when choosing their gear. EVA cases made with recycled fabrics or low VOC adhesives are gaining popularity.

Yisi Packing is proud to offer eco friendly customization options, helping clients align their packaging with modern sustainability standards.

Partner With Yisi Packing for Next Gen Travel Accessories

As 2025 reshapes the way people travel, brands have a new opportunity to offer smarter, safer, and better designed cases for tech accessories. At Yisi Packing, we specialize in custom EVA cases built for today’s mobile world.

Let’s design something your customers will actually want to take everywhere.

Does A Cooling Heating Air Conditioner Worth Its Cost??

When we are choosing air conditioners, most of us struggle with whether we should buy an air conditioner with a cooling and heating function or whether just cooling is enough.

Someone says that a cooling and heating air conditioner costs much and is seldomly used in winter, so it is not cost-effective compared with a cooling-only air conditioner. While others think a cooling and heating air conditioner has multiple applications, which is also "cost-effective". So which one is the best for you? Is a cooling and heating air conditioner worth its cost? Now we are going to explain the real performance of a cooling and heating air conditioner and make it clear and rest assured for you.

I. Cooling heating air conditioner

Simply, it has two functions: heating and cooling. Unlike traditional electric heaters that generate heat through resistance, air conditioners use heat from the outdoor environment to transport heat and are generally more energy efficient, especially in spring, autumn, and winter in the south.

cooling heating air conditioner

II. Real performance of the cooling and heating air conditioner

Cooling performance: no difference with a cooling only air conditioner.

Most of the cooling and heating air conditioning units have the same cooling effect compared with cooling-only air conditioners in summer. There are no differences in horsepower, energy efficiency, cooling speed, and other aspects.

Heating performance: It is sufficient for the south area in winter. For the north, it needs an additional heating supply.

In southern cities, the outdoor temperature in winter is relatively mild, and the heating and cooling air conditioning is completely sufficient.

For use in sub-zero areas in the north, it is recommended to choose a model with **low-temperature heating capacity (T3 heat pump or electric auxiliary heating)** to improve the effect.

High energy efficiency ratio, good energy-saving performance

Compared with traditional electric heaters or oil-filled radiators, air conditioners have higher heating efficiency per unit of power consumption (COP value is usually > 2.5) and are more energy-efficient in the long term.

III. Applicable groups to buy a cooling heating air conditioner

Southern families: There is no central heating supply, and an air conditioner to heat is a high-efficiency and practical method.
Young people who rent houses: They don't want to additionally buy heaters; a cooling and heating air conditioner is enough.
Families with kids and elderly people: Large temperature differences in spring and autumn; a cooling and heating air conditioner makes it able to adjust the inner temperature flexibly and improve the comfort.
Office buildings and shops: Business places throughout the year, a cooling and heating air conditioner is cost-effective in maintenance and management.

IV. Suggestions for choosing cooling heating air conditioners

Check the energy efficiency ratio: Class I and European A+++ air conditioners are more energy-saving during long-term operation.
Check the heating capacity: Citizens in northern areas are concerned about air conditioners with electric auxiliary heating and low-temperature operation technology.
Check the installation position: Ensure good ventilation around the outdoor unit to avoid the decrease of heating in winter.
Brand and aftersales: Choose well-known brands in service networks and with good reputations, such as KRG air conditioning.

The real value of a cooling and heating air conditioner is not just "an extra function", but it brings a longer service life, higher space utilization, and a more comfortable living experience. Especially today when climate change is becoming increasingly obvious, a heating and cooling dual-purpose air conditioner may be an indispensable core appliance in your home all year round.

If you want to know the selection plan of KRG's full range of cooling heating and cooling only air conditioners (wall-mounted, cabinet, duct unit, ceiling unit, etc.), please leave us a message or contact us. We will reach you with the most suitable product and the best price.

Room Area & Air Conditioner Capacity A Chart To Solve The Selection Between

A small air conditioner has a small cooling effect; a larger air conditioner has a stronger cooling performance but a higher cost and higher energy consumption. So what exactly is the air conditioner capacity that I need for my room size? Don't choose it blindly; a comparison chart here can help you solve the problem quickly.

I. What's HP (Horsepower)?

HP is the unit of air conditioner power; 1 HP is approximately equal to 2500 W of cooling capacity. Common air conditioner capacities include 1 HP, 1.5 HP, 2 HP, 3 HP, etc. The larger the capacities, the stronger the air conditioner's cooling/heating capacity.

However, choosing an air conditioner is not a matter of “the bigger the better”. Instead, it should be judged comprehensively based on factors such as room size, floor height, orientation, and usage function.

II. Standard horsepower reference table

Room size	Suggested horsepower	scenarios
10-15㎡	1 HP	Small bedroom, study room
15-20㎡	1.5 HP	Ordinary bedroom, children's room
20-30㎡	2 HP	Master bedroom, large study room, small living room
30-40㎡	2.5 HP	Living room, conference room
40-50㎡	3 HP	Large living room, office
50-70㎡	5 HP	Open space, restaurant, commercial place
70㎡ and above	6-7 HP or choose VRF/VRV system	Large conference room, restaurant, exhibition hall, etc.

The above is a reference for a normal home environment with a 2.6 m floor height and good insulation. If the floor height is high, there is direct sunlight, there is a large flow of people, or there are many devices, it is recommended to appropriately increase the number of units or choose a multi-split/duct unit solution.

III. Selection tips

Select based on room type and its usage: Silent and energy-saving air conditioners are priorly considered for bedrooms; airflow distance and cooling coverage are concerns for living rooms.
Select based on the orientation: For the room that faces the west or is located at the top of the building, it is suggested to choose the air conditioners plus 0.5 hp.
Select with a margin: Reserve 10%-20% cooling capacity to withstand the extreme hot weather.

IV. Don't ruin your experience with a wrong-capacity air conditioner

KRG provides a variety of capacities of air conditioners, from 1 hp to 7 hp, from wall mounted air conditioners to ceiling mounted air conditioners. Those product series can meet your different needs for households, commercial buildings, and constructive projects. If you have any questions on how to select an air conditioner, please don't hesitate to contact us.