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Nanjing Lipack Co.,Ltd is a collection of all range of packaging products, especially paper packaging products, which including Kraft paper bags, Luxury paper bag ,paper box, paper labels & stickers, paper tags, bubble bags, poly bags, paper tags… we have a professional team committed to quality control and constantly strive for excellence. We provide customized “one stop” packaging solutions, from initial design and to final packaging delivery. We have all the systems in place to produce the highest quality, most impactful packaging, and fast delivery. Click professional team, manufacturing process & quality control to see more about this.

We are headquartered in Nanjing China, and have three manufacturing facilities across China.

A corrugated paper box is die-cut, creased, nailed, or glued to make corrugated boxes. Corrugated paper box is one of the most widely used cardboard paper boxes, and the amount has been the top of various packaging products. Next, we will introduce you to corrugated paper boxes.

Here is the table of contents.

• What is the technology and principle of the corrugated paper box?

• What kinds of shapes are there in corrugated boxes?

What is the technology and principle of the corrugated paper box?

1. The main printing methods in the corrugated paper box industry are.

Lithographic offset printing (ink color printing), letterpress printing (carton water-based printing). Compared with color printing, water-based printing has high strength, low cost, high production efficiency (fast delivery time), and an overall printing effect close to color printing, which is widely used in the transportation packaging of products.

2. Main production processes of a corrugated paper box.

Corrugated paper box automatic production line, printing process, post-processing, and forming process; printing work has realized the automatic operation of printing, slotting, die-cutting, gluing and packaging in one process.

3. Water-based printing of corrugated paper boxes belongs to the additive color printing method. The color original is electronically color-separated into a reverse image and then printed on a printing press. The ink is transferred from the anilox rollers of the printing press to the printing plate, and then the ink is transferred from the printing plate to the corrugated board. Most of the cartoon paper boxes are also printed using the overlay color method.

4. Prepress technology (traditional plate making)

(1) Color originals processed by electronic color separation into monochrome and then out of the film sheet (negative image soft film).

(2) Back exposure: exposure of the back of the plate with ultraviolet light to form the base of the printing plate.

(3) The main exposure: remove the protective film on the front of the plate, put on the negative picture, cover the vacuum film, vacuum pumping, the main exposure with ultraviolet light, the content of the negative picture transferred to the printing plate.

(4) Wash plate: wash the plate in the plate washer with a potion to wash off the unexposed resin on the printing plate, forming the intaglio printing plate.

(5) Drying.

(6) De-stick: ultraviolet light source irradiation.

(7) Post-exposure: hardness adjustment.

What kinds of shapes are there in corrugated boxes?

According to the shape of corrugated, there are 3 designs of corrugated paper boxes: V, U, and UV.

The V-shaped corrugated waveform is characterized by a high value of plane resistance pressure, which saves adhesive usage in use and saves corrugated base paper. However, corrugated paper boxes made of this waveform are poorly cushioned and do not easily recover from pressure or impact.

The U-shaped corrugated waveform is characterized by a large adhesive area, strong bonding, and a certain degree of elasticity (better recovery). When a corrugated paper box is impacted by external forces, it is not as fragile as a V-shaped flute, but the plane is not as strong as a V-shaped flute.

Based on the performance characteristics of V-flutes and U-flutes, UV-shaped corrugated sticks, which combine the advantages of both, are now commonly used. The result is a corrugated packaging paper box that maintains the high-stress resistance of V-flute and the high adhesive strength and flexibility of U-flute.

Nanjing Lipack Co., Ltd. attaches great importance to customer experience, the pursuit of cost-effective products, to provide more valuable and more impressive corrugated paper boxes, to better enhance customer brand recognition and product sales!

Take away paper bag is a simple bag, made of paper, non-woven industrial cardboard, etc. It is usually used in food stores to pack food for customers; there are also gifts when giving gifts; many fashionable Westerners even use kraft food paper bags as a bag product, which can be matched with other clothing. Take away paper bag is also called handbag, handbag, etc.

Here is the content list:

l What is the environmental philosophy of the Take away paper bag?

l How to evaluate take away paper bags?

l What are the advantages of taking away paper bags?

What is the environmental philosophy of the Take away paper bag?

As we all know, paper is a recyclable resource. The raw material for paper mainly plants fiber, which contains the three main components of cellulose, hemicellulose, and lignin, as well as other components with a smaller content, such as resin and ash. There are also auxiliary components such as sodium sulfate. In addition to plant fibers in the paper, different fillers need to be added depending on the paper material. Plastic bags are usually made from polyethylene, the raw material used being oil, which is already a scarce source of energy for us. In contrast, take away paper bags are made from trees, which are a renewable resource. The biodegradable and recyclable nature of the bags themselves is naturally labeled as green.

How to evaluate take away paper bags?

The kraft paper material used in the take away paper bag is not only resourceful and easy to recycle, but also easily degradable. After decaying, paper products can be recycled or used as plant fertilizer, and can also reduce air pollution and clean the environment. Compared with plastic, metal, glass, and other three categories of packaging materials, using LCA (LifeCycleAssmcnt, that is, "ecological cycle assessment method") technology for quantitative assessment, Take away paper bag is one of the most promising packaging bags. At present, cartons, paper bags, paper drums, and pulp molded products have become an important part of the modern packaging industry and are widely used in transport packaging and food packaging.

What are the advantages of taking away paper bags?

(1) The kraft food paper bag is made from environmentally friendly kraft paper and is a sustainable ecological container compared to plastic bags.

(2) Leak and oil resistant, the material is of exceptional quality and can be reused many times. The label lock at the top keeps it fresh and it is easy to nest with several containers for compact storage.

(3) Capacity: can be customized to suit different customers' needs, the food paper bag is suitable for packing hot and cold food of different sizes.

(4) The take away paper bag can be used multiple times and is easy to clean, making it ideal for busy families, fast food restaurants, coffee shops, or bakeries.

Nanjing Lipack Co., Ltd manufactures different take away paper bags. it has several imported advanced coating machines including Windermüller and Holscher paper bag machines, Newlon paper bag production lines, and shopping bag machines. The company can produce various types of paper bags, such as food bags and shopping bags. If you are engaged in the kraft paper bag business, you can consider using our cost-effective products.

Open Window paper bags can be seen everywhere in the flower packaging market, the purpose is to increase the visual impact of products on the shelf, enhance competitiveness, and at the same time can stimulate consumers to promote consumption. The biggest advantage of the Window paper bag is that consumers can see the product itself most intuitively. If the color and texture of the product are better, choosing to open the window is undoubtedly the icing on the cake, showing the best side of the product.

Here is the content list:

• Advantages of window paper bags

• What are the types of flower paper bags?

• What are the advantages of using window paper bags to pack flowers?

Advantages of window paper bags

From a design point of view, the Window paper bag is not limited to a certain area or a certain pattern. If used properly, it will produce some unexpected effects, which will help increase consumer goodwill and consumer desire. From a production point of view, opening a window is also a cost-saving method. We all know that window packaging bags are also to be printed. However, compared with full-page printing, the larger the window, the more printing ink can be saved. From a practical point of view, the Window paper bag can more intuitively display the product itself and increase the selling point. Consumers can see what kind of products they want at a glance, saving some tedious steps and indirectly eliminating consumers’ worries about products.

What are the types of flower paper bags?

According to the material, Paper bags for flowers can be divided into a white cardboard paper bag, whiteboard paper bag, bond paper bag, kraft paper bag, special paper bag. According to the different ways of bag side, bottom and back cover, it can be divided into open seamed bottom bag, open adhesive corner bottom Paper bag forms such as bag, valve suture bag, Window paper bag, etc. According to the different handles and digging methods: NKK (perforated and threaded), NAK (non-holes and cords, divided into no-fold and standard fold-type), DCK (cordless bag body digging handle), BBK (with The tongue is not punched).

What are the advantages of using window paper bags to pack flowers?

Using Paper bags for flowers packaging is safer and more environmentally friendly. The paper bag is non-toxic, tasteless, and non-polluting. It meets the standards of the National Environmental Protection Agency, has high strength, and is highly environmentally friendly. It is currently one of the most popular environmentally friendly packaging materials in the world. The resistance to cracking, destruction, and dynamic strength are very high. The window design is very delicate, allowing people to see the beautiful flowers inside while protecting the flowers from accidental damage from the outside world. The bottom is widened and thickened, and the volume becomes larger. It can be placed in a standing position: The thickened bottom design makes the product packaging bag more load-bearing, and the bottom is not easy to fall, so it is firmer and safer. What’s more, the Paper bag for flowers has a retro feel, toughness, and is not easy to deform.

Nanjing Lipack Co.,Ltd has produced a variety of Paper bags for flowers and other products, with a wide variety of beautiful and generous, suitable for packaging and giving away. If you are in the paper bags business, you can consider using our cost-effective products.

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