Type of package

The types of bags include square bottom open bag, square bottom valve bag, seam bottom open bag, plastic woven bag and covered light bag. Square bottom open bag: it is a kind of packaging bag with both traditional and advanced concepts. The bottom of the package is square, which makes the overall effect of the package comparable to that of the square bottom valve package. Film-coated lightweight bag: kraft paper bag or paper-plastic composite bag is covered with a waterproof lightweight film. It is waterproof and moistureproof. Open bag with seam bottom: it is a traditional packaging bag used by many enterprises. The bottom is sealed with high-strength fiber thread, with easy-to-pull opening, which is convenient to operate when unpacking. Plastic woven bag: also known as snakeskin bag. It is a kind of plastic, which is used for packaging. Square bottom valve pocket: it is a kind of packaging bag born under the guidance of improving packaging efficiency and facilitating transportation. The overall appearance of the bag is square, which is very suitable for stacking and transportation. The valve port at the bottom of the bag is convenient for loading materials and sealing is simple and easy.

A bag is a bag for holding things. Materials are plastic, leather, cloth, paper, etc. Plastic bag is a synthetic polymer material. Since its invention, it has gradually become an indispensable part of people's daily life because of its excellent performance.

People's daily necessities, school supplies and so on all have the shadow of plastic. Not only in daily necessities, plastics are also widely used in various industries such as medical care and construction. In particular, plastic bags, which are light in weight and large in capacity, can hold all kinds of things and have become an indispensable assistant in people's lives.

Folding daily simple care

1, regularly use the leather cream of the same color to wipe the handbag, which can keep the leather bright and moist, but avoid using liquid leather oil. 2. When applying leather cream to handbags, avoid applying leather cream directly to the leather surface, and apply it to fluff or soft hair before wiping the leather surface. 3. Always keep the handbag dry and store it in a ventilated place. For some handbags that are easy to get wet, you can put a few moisture-proof beads in the bag.

4. If the handbag is wet, use a dry cloth to absorb the water in the handbag, and then put it in a cool place to let it dry naturally. Never put the wet handbag directly in the sun and blow it with a fan, or put it next to the air conditioner, or the leather will burst.

5. When cleaning handbags, avoid washing with water or contacting with chemical solutions.

Source of luggage

Plastic bags were first invented by a European factory owner in 1902. Because of its convenience and low price, it brings great convenience to human life. Since the birth of plastic bags, it is destined to be disposable consumer goods.

The Plastic Restriction Order, which came into effect on June 1 2008, clearly stipulated that shopping malls, supermarkets and bazaars should not provide plastic shopping bags free of charge, and it is forbidden to use plastic shopping bags with a thickness less than 0.025mm, thus environmental protection plastic bags came into being.

All plastic bags that meet the national standard GB/T 2 16 1-2008 are called environmental protection plastic bags. Environmental protection plastic bag is the abbreviation of various biodegradable plastic bags. At present, with the development of science and technology, there are various materials that can replace traditional PE plastics, including PLA, PHAs, PBA, PBS and other polymer materials. It can perfectly replace the traditional PE plastic bag. At present, environmentally friendly plastic bags have been widely used: supermarket shopping bags, rollable fresh-keeping bags, plastic films, etc. all have examples of large-scale application in China.