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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!

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.

Courier bag is the courier industry to transport documents, documents, information, goods and other bags used for packaging. Courier bags are also known as mailing bags, express packing bags. How much do you know about courier bags?

Here is the content list:

1. What are the uses of courier bags?

2. Courier bags how to classify?

What are the uses of courier bags?

The use of more is made of polyethylene material plastic courier bags, with low cost, easy to use, waterproof performance characteristics.

In addition to the major courier companies that have used customized courier bags, there is the online shopping industry, many businesses to give customers a good image, as well as enhance the image, and play a promotional role, also customized with their characteristics of the courier bags.

Courier bags how to classify?

1. Courier bag classification by material points have express plastic bags, express file seal, express bubble bags, express bone bags, express woven bags, etc.

Express plastic bags material: low-density polyethylene (LDPE) usually said PE, high-density polyethylene (HDPE) usually said PO, courier plastic bags with low cost, lightweight and other advantages.

PE and PO in the courier plastic bags difference: PE transparency, softness is better, the printing color is brighter; PO has a relatively good mechanical property; in the domestic courier bags like are using PE as the main material, while the foreign general is using PE, PO compound cooperation as the main material of courier bags.

Polyethylene courier bags in the market there are two categories: one is the new material courier bags, the second is recycled material courier bags.

Express document seal material: generally gray background whiteboard paper, white cardboard, kraft paper, mostly. The courier industry generally uses 200 g / m2 to 450 g / m2 weight of paper. Express document seal has the advantages of being flat, not easy to fold bad than the express plastic bags.

Courier bubble bag material: a transparent flexible packaging bag filled with air by the middle layer of the air cushion film. Mainly used in the courier industry small volume fragile, easily damaged, less precise goods packaging purposes. Courier bubble bag with shock-absorbing bubble film, bubble film with countless small bubbles, so the body is light, flexible, with good shock absorption, impact resistance, and non-toxic, tasteless, moisture, corrosion resistance, and other advantages.

Express bone bag material: bone bag (also known as dense bags, by any bag, sealed bags, chain bags, self-sealing bags, polyethylene (LDPE), and high-pressure linear polyethylene (LLDPE) by blowing film molding, heat cutting the bag is made of polyethylene (LDPE) and high-pressure linear polyethylene (LLDPE) by blow molding, heat cutting and making a plastic bag that can be resealed. The bone bag can be used for a variety of small items of internal and external packaging. Self-sealing bags produced with food-grade raw materials can be stored in a variety of small food, tea, seafood, etc., moisture, water, insects, to prevent things from falling apart.

Express woven bags: also known as snakeskin bags. Is a kind of plastic, packaging, its raw materials are generally polyethylene, polypropylene, and other chemical plastic raw materials. Woven bag color is generally white or off-white, non-toxic and tasteless, generally less harmful to the human body, although it is manufactured by a variety of chemical plastics, its environmental protection is stronger, and recycling efforts; mainly used for a variety of items into the packaging and packaging with a wide range of industrial uses.

2. Courier bag classification by raw materials: there are new material courier bags, semi-new material courier bags, recycled material courier bags.

3. Courier bag classification according to whether to print: printed courier bags, non-printed courier bags.

4. Courier bag classification according to whether the folding bottom organ: with folding bottom organ, no folding bottom organ.

5. Courier bags according to whether to add additional bags: with additional bags, no additional bags.

Nanjing Lipack Co., Ltd is one of the leading professional manufacturers in the courier bag industry, with a long history of manufacturing plastic packaging and paper packaging products. If you want to know more about courier bags, please feel free to ask our company for more information.

A corrugated carton is made of corrugated cardboard, which is a multi-layer bonded body, it is less by a layer of wavy core paper sandwich and a layer of cardboard, is a kind of cardboard paper box. It has high mechanical strength and can withstand collisions and drops during handling. The next section will introduce you to the advantages of corrugated paper boxes and how to prevent insects daily?

Here is the table of contents:

• What are the points of corrugated paper boxes?

• How can corrugated paper boxes be protected against insects?

  
  

What are the points of corrugated paper boxes?

Corrugated paper boxes are made of corrugated cardboard and are widely used paper container packaging, which is widely used for transportation packaging. Corrugated packaging paper boxes are widely used because they have many unique advantages.

1. Good cushioning performance. A Corrugated paper box has a special structure. 60-70% of the volume of the cardboard structure is empty, so it has good shock absorption performance and can avoid collision and impact of the packaged goods.

2. Lightweight and solid. A corrugated board is a hollow structure, with less material to form a rigid corrugated paper box body, so it is light and strong, compared with the same volume of wooden boxes, only 1/4 to 1/5 of the weight of wooden boxes.

3. Small size. A corrugated paper box can be folded into a flat board when it is stored and transported, which is convenient for storage and transportation; when it is used, it is opened into a box, and the volume is much smaller than the same volume of a wooden box and plywood box.

4. Sufficient raw materials and low cost. The production of corrugated cardboard raw materials, corner wood, bamboo, straw, reeds, etc. can be, so the cost of corrugated boxes is low, only about half of the same volume of wooden boxes.

5. It is easy to automate production. Complete sets of automatic corrugated paper boxes production lines have been manufactured, which can produce corrugated paper boxes in large quantities and with high efficiency.

6. Low cost of packaging operations. The use of corrugated paper boxes for packaging makes it easy to automate the packaging of goods, reducing the packaging workload and lowering packaging costs.

7. Less metal usage. The corrugated paper box forming, only a small number of box nails, compared with the manufacture of wooden boxes, only and it is only 5%, but still as a rigid paper box.

8. Good printing performance. Corrugated paper box has good ink absorption ability, is easy to print, and convenient to promote goods.

9. Recyclable and reusable. Corrugated paper boxes can be reused many times, reducing the cost of packaging and no pollution to the environment.

How can corrugated paper boxes be protected against insects?

1. Physical method.

Pack individual food products with a higher strength film so that insects cannot penetrate the corrugated paper box and prevent insects. But this method must change the existing packaging line, in addition to the extra cost of film.

2. Using chemical methods.

The specific approach is to use paperboard coated with chemicals to package food to prevent insects. The specific approach is to coat the surface of the corrugated paper boxes hanging surface with insect-proof paint. This is not an insecticide, but a natural essential oil that can be used as a food additive. Its function is not to kill insects, but to repel them and prevent them from the outside. This can be done without changing the existing packaging line and keeping the cost low. Its addition is simple and can be printed onto the surface of corrugated paper boxes with aniline printing machines, making it suitable for small batch production of corrugated paper boxes.

Nanjing Lipack Co., Ltd. has boldly introduced advanced automatic production equipment, strengthened production management, and strict quality control. The company, which has been completely transformed, stands out in the fiercely competitive market with its stable quality, fast delivery, and price advantage of corrugated paper boxes, and is developing steadily.

The paper bag you use to package your customers’ items gives you one last chance to make an impression on them when they leave your store. Make sure you stock quality shopping bags that are easy to carry and won’t rip or tear, even if they’re stuffed

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Jul 09, 2022 · The side of a cereal box can make a small box for home use. Use corrugated cardboard for a sturdier project, or make a larger, decorative box from scrapbooking paper or cardstock. If you have a specific size of box in mind, cut the cardboard to fit: A piece of cardboard makes a square box with sides ¼ the original length.