Recycled Plaid Paper Shopping Bag- China Factory Suppliers Manufacturers

Kraft paper bags are non-toxic, tasteless, pollution-free, in line with environmental standards, with high strength, high environmental protection, is one of the most popular international environmental protection packaging materials. Kraft paper bags made from kraft paper are being used more and more widely, in supermarkets, shopping malls, shoe shops, clothing shops, and other places to shop, there is usually a supply of packaging bags, which is convenient for customers to carry their purchases. Kraft paper bags are environmentally friendly packaging bags with a wide variety.

Here is the content list:

• What materials are kraft paper bags made of?

• Where can kraft paper bags be used?

• How can kraft paper bags be classified?

What materials are kraft paper bags made of?

Kraft paper bags are a composite material or pure kraft paper packaging containers, non-toxic, tasteless, pollution-free, low-carbon environmental protection, in line with national environmental standards, with high strength, high environmental protection is one of the most popular international environmental protection packaging materials.

The packaging bag is made of full wood pulp paper as the base material, the color is divided into white kraft paper and yellow kraft paper, PP material can be used on the paper to laminate a layer of film, to play a waterproof role, the strength of the bag can be made according to customer requirements from one to six layers, printing, and bag making integration. The opening and bottom sealing methods are divided into heat sealing, paper sealing, and glued bottom.

Where can kraft paper bags be used?

The kraft paper bag can be used in a wide range of applications, it can be used as a packaging bag or simply to hold some common materials, such as chemical materials, food, pharmaceutical additives, construction materials, etc. At the same time, being used as a paper shopping bag is its most common use, and can be used for supermarket shopping, clothing, and other industries where kraft paper bags are suitable for packaging.

How can kraft paper bags be classified?

(1) according to the material can be divided into a. pure kraft paper bags; b. paper and aluminum composite kraft paper bags (kraft paper composite aluminum foil); c: woven bags composite kraft paper bags (general bag type larger)

(2) according to the bag type can be divided into a. three-side seal kraft paper bags; b. side organ kraft paper bags; c. self-standing kraft paper bags; d. zip kraft paper bags; e. self-standing zip kraft paper bags

(3) According to the appearance of the bag type can be divided into a. valve bag; b. square bottom bag; c. sewing bottom bag; d. heat sealing pocket; e. heat sealing square bottom bag

Nanjing Lippincott Ltd. brings together a wide range of packaging products, especially paper packaging products, covering kraft paper bags, luxury paper bags, and more. The company has a professional production team and produces all products with excellent quality. It has exported to more than 150 countries around the world and has helped more than 800 brands in brand development and promotion. If you are engaged in the kraft paper bag business, you can consider using our cost-effective products.

In addition to protecting goods and facilitating storage and transportation, cardboard paper boxes also play the role of beautifying and promoting goods. Cardboard paper boxes belong to green products, it is conducive to environmental protection, loading, and unloading transportation. The next will provide you with a detailed introduction to cardboard paper boxes.

Here is the table of contents:

• How is the strength of cardboard paper boxes designed?

• What are the design principles of the cardboard paper box?

  
  

How is the strength of cardboard paper boxes designed?

1. Side compression strength = surface raw paper comprehensive ring compression strength + comprehensive corrugated paper ring compression strength * shrinkage rate general side pressure calculation according to the lowest ring compression strength of raw paper (safe and reliable), the actual test value will be appropriately greater than the theoretical calculation value.

2. Breaking strength: The maximum external force that a unit area of corrugated board can withstand before rupture is uniformly increased. Unit: Kg/cm2.

Cardboard paper box rupture strength = face paper rupture strength + middle grid paper rupture strength + bottom paper rupture strength

4. Side compression, breakage resistance, puncture with cardboard. Cardboard paper box edge compression strength will be lower than the cardboard edge compression strength (due to the loss of corrugated in the manufacturing process).

5. Cardboard paper box compressive strength = side compression strength (N/cm) * Calicut constant F. The F value depends on the perimeter length of the cardboard paper box, 2*(length + width) cm. and the corrugated flute type.

6. The compressive strength of cardboard paper box = corresponding to the compressive strength of ordinary box type * 0.6 * 1.62 * shaking cover width/carton width.

7. Cardboard paper boxes, cardboard bonding strength. As with corrugated paper boxes, the force is required to separate the unit length of cardboard face paper from the corrugated paper. Unit: N / m flute.

8. Stacking strength and compressive strength.

The required compressive strength of a cardboard paper box = [gross weight of the box * (stacking layers - 1)] * safety factor K. The former part is the static stacking strength of the cardboard paper box.

What are the design principles of the cardboard paper box?

Cardboard paper box structure design is from the actual conditions of packaging and production, based on scientific principles of the packaging shape structure and internal accessories for the design. Design must ensure that the structure has sufficient strength, hardness, and the ability to resist other environments.

Qualified cardboard paper box products start with the right structural design. Designers must not only truly understand the customer's intent, but also be familiar with the post-processing process. Designers should understand the nature, shape, size, and weight of the cardboard paper box contents, the arrangement, transportation, and stacking of the contents, the storage environment of the contents, the transportation route and time, as well as the carton box type and production materials before the design begins. Designers in determining the size of the cardboard paper box are mainly to consider two factors: one is to be able to accommodate the contents; the second is to have sufficient strength. Just like the extensions box, it's internal how can contain enough items on how to design. The constraints of the cardboard paper box size and shape of the factors in addition to the contents of the package, there are many other factors, such as ergonomic factors, the size of the pallet, the size of the truck car, the size of the container space, with the size of the shelf size. Only when the design is carried out so meticulously will it be possible to have holographic paper boxes in the future.

Nanjing Lipack Co., Ltd. will provide comprehensive, full, and precise services for target customers is the customer to get greater value-added and create a win-win situation with customers. At the same time, we need to keep innovating, keep pace with advanced technology, and manufacture new concepts of cardboard paper boxes to serve society.

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!

In today's society, people's awareness of environmental protection continues to increase, and they also prefer products with environmental protection words. Many companies are paying more and more attention to shouldering their social responsibilities, and they are all making contributions to environmental protection in their way. Our company is no exception, we are committed to providing a more environmentally friendly paper bag for the retail store. In this article, we will introduce the environmental protection of paper bags for retail stores.

Here is the content list:

l Environmentally friendly paper materials

l Environmentally friendly printing ink

Environmentally friendly paper materials

Recycled paper is the main material for the retail paper bag produced by our company. Rather than cutting down trees to reduce vegetation coverage, we are more inclined to choose recycled paper made from recycled paper to make retail paper bags. In this way, we can not only reduce the production cost of retail paper bags, thereby reducing the sales price of retail paper bags to benefit customers but also avoid the problem of aggravating vegetation damage, thus better protecting the ecosystem. As the old saying goes-kill two birds with one stone.

The above is the environmental protection reflected in the retail paper bag production process. Next, let's talk about the part reflected in the use process. Because it is a paper bag, the service life will not be as long as that of a woven bag or plastic bag. But please don't worry, our paper bag for the retail store is 100% recyclable. Even if it does not flow into the recycling channel, it can be completely degraded. So please rest assured to use our retail paper bag.

Environmentally friendly printing ink

Due to the need for aesthetics or publicity, some patterns or text are sometimes printed on our paper bag for a retail store. At this time, you may be worried. Will the ink attached to the paper bag for retail stores pollute the environment? We have also considered this issue, so we use environmentally friendly water-based soy ink for printing. This ink is extracted from soybean oil, which is renewable, non-hazardous, and easy to recycle. In addition, its resistance to light, heat, and friction is also stronger than traditional inks. Soy ink has high transparency, good fluidity, and colorability, bright colors, and is not easy to fade. It is suitable for a wide range of color printing. When paper bags for retail stores are recycled, soy inks are easier to clean during the deinking process than traditional inks, which effectively reduces the damage to the retail paper bag during deinking. It also makes the deinked retail paper bag easier to degrade.

In contemporary times, protecting the ecological environment and developing a green economy has gradually become the general trend. From various government policies on restricting the use of plastics, we can see that the government attaches great importance to environmental protection. If you are interested in our products, please consult the official website: www.cnlipack.com. Thank you very much for your support.

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