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The development of plastic bottles as packaging products is very rapid, and PET bottles are used for large-scale food packaging. The material is a plastic saturated polyester, non-toxic and tasteless, suitable for food packaging.
1 The use of PET bottles for direct recycling and cleaning can be reused as a metal can and paper packaging, and can be reused as a glass bottle. In the Dutch market in 1989, the first new technology for recyclable PET bottles was introduced into the world market. There are currently equipment designed specifically for reused PET bottles. First of all, PET bottles are required to withstand temperature, because the method of cleaning PET bottles is the same as that of glass. The concentration of caustic soda is required to be 2-3%, and the temperature is 40-68°C.
2 Crushing and recycling of used crushing polyester packaging containers and crushing, granulation, re-blow drawing and forming of the packaging containers, can only be used for non-food packaging. The reason is that the recycled polyester is blown and stretched under high temperature, and some molecules decompose to generate acetaldehyde, while acetaldehyde is toxic, so it can only be used in non-food packaging.
Some PET bottles include polyester (PET) bottles, high-pressure polyethylene (HDPE) trays, aluminum caps, vinyl-vinyl acetate copolymer (EVA) liners, paper tags, and glue. If it cannot be separated manually, the crushed pieces can be separated by EVA, paper, PET, HDPE, and Al in a density difference using a blower and water washing. That is, the HDPE was removed by water suspension, and the PET and aluminum were separated by suspending the salt solution having a density of 1.4 g. The main equipment is: crusher, air separator, flotation device and oven.
Suitcase sets are a must-have for anyone who travels frequently, whether for business or pleasure. These sets typically include multiple pieces of luggage in varying sizes, which can be used for different types of trips and packing needs. They are designed to make traveling more convenient, organized, and stylish, while also providing a high level of protection for your belongings.
A good suitcase set should be durable, lightweight, and easy to maneuver, with ample storage space and compartments for all your essentials. It should also be able to withstand the wear and tear of travel, including rough handling, bumps, and scratches. Additionally, the set should be aesthetically pleasing, with a design that reflects your personal style and preferences.
When shopping for a suitcase set, there are several factors to consider, such as the size and number of pieces, the material and construction quality, the features and functionality, and the price point. You should also think about your specific travel needs and preferences, such as the type of trips you take, the amount of luggage you typically bring, and the level of organization and security you require.
One of the main advantages of a suitcase set is that it offers versatility and flexibility. With multiple pieces of luggage, you can choose the size and style that best suits your needs for each trip. For instance, if you are going on a short weekend getaway, you may only need a small carry-on bag, while a longer vacation may require a larger checked bag and a medium-sized carry-on. Having a set of suitcases also allows you to mix and match different sizes and colors to create a cohesive and coordinated look.
Another benefit of a suitcase set is that it can help you stay organized and efficient while packing. Most sets come with various compartments, pockets, and dividers, which allow you to separate your clothes, shoes, toiletries, and other items. This can make it easier to find what you need quickly and avoid overpacking or forgetting essential items. Additionally, some sets come with packing cubes or garment bags, which help keep your clothes wrinkle-free and organized.
Suitcase sets also provide a high level of protection for your belongings. Most sets are made from durable materials, such as hard-shell polycarbonate or soft-shell nylon, which can withstand impact and abrasion. They also come with features like TSA-approved locks, reinforced corners, and sturdy handles, which help prevent theft, damage, or loss. Some sets even have built-in GPS trackers or Bluetooth-enabled locks, which allow you to track your luggage or lock and unlock it remotely.
In terms of design and style, suitcase sets come in a wide range of colors, patterns, and textures, to suit different tastes and preferences. Whether you prefer classic black, sleek metallic, bold prints, or textured finishes, there is a set that can match your style. Some sets even have customizable options, such as removable stickers or monogrammed initials, which allow you to personalize your luggage and make it stand out.
When it comes to choosing the right suitcase set, there are several factors to consider. First, you should determine your travel needs and preferences, such as the number of trips you take, the length and type of trips, and the amount of luggage you typically bring. You should also consider your budget and the quality and features you require.
Some of the key features to look for in a suitcase set include:
- Size and number of pieces: Depending on your needs, you may want a set that includes a combination of carry-ons, checked bags, and duffel bags. You should also consider the size and weight restrictions of your airline, as well as your own physical ability to lift and maneuver the luggage.
- Material and construction quality: Look for suitcases made from durable materials, such as polycarbonate, ABS, or nylon, with reinforced corners, zippers, and handles. Hard-shell suitcases tend to be more durable and protective, while soft-shell suitcases are more flexible and lightweight.
- Features and functionality: Consider the features and functions that are important to you, such as TSA-approved locks, spinner wheels, telescoping handles, packing compartments, and expandable zippers. Some sets also come with additional accessories, such as packing cubes, toiletry bags, and shoe bags.
- Style and design: Choose a set that reflects your personal style and preferences, whether you prefer classic, modern, or trendy designs. Consider the color, pattern, and texture options, as well as any customization options.
Overall, a suitcase set is an essential investment for anyone who travels frequently or wants to make their trips more organized and convenient. With a variety of sizes, styles, and features to choose from, there is a set that can meet your needs and suit your style.
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