kraft paper bags- China Manufacturers Suppliers Factory

The emergence of the kraft paper bag as a paper shopping bag has changed the traditional thinking that shopping is limited to the number of items that can be carried by both hands, and has made it less enjoyable for consumers to shop because they are worried about not being able to carry it. This article will focus on the historical change and the future of the kraft paper bag.

Here is the content list:

• What historical changes have kraft paper bags undergone?

• The future of kraft paper bags.

What historical changes have kraft paper bags undergone?

The first shopping kraft paper bag, which was born in 1908 in St. Paul, Minnesota, USA. A local grocery shop owner, Walter DuVernay, began looking for ways to get consumers to buy more things at once to boost sales. DuVernay thought it would be a pre-made bag that was inexpensive and easy to use and could hold at least 75 pounds. After much trial and error, he settled on kraft paper, which was made from coniferous trees with long wood fibers and treated with milder chemicals such as caustic soda and sulphuric alkali during the cooking process, so that the original strength of the wood fibers was less compromised, resulting in a paper that was tightly joined and tough enough to withstand high tension and pressure without breaking. Four years later, the first packaging bag for shopping was created. With its rectangular bottom, it has a larger volume than the traditional V-bottom paper bag. A cord runs through its bottom and sides to increase its load-bearing capacity, and two pull loops are formed at the top end of the bag to make it easier for people to carry. Du Weiner named this shopping bag after himself and applied for a patent for it in 1915. At this time, the annual sales volume of this shopping bag has exceeded 100 million.

The future of kraft paper bags.

It may be an exaggeration to say that the birth of the paper shopping bag has driven the development of the entire retail industry, but it has at least revealed to businesses that you simply cannot predict how much consumers will buy until their shopping experience becomes as comfortable, easy and convenient as possible. This was the point that drew attention to the consumer shopping experience and led to the development of the supermarket basket and trolley.

In the following half-century or so, the development of kraft paper shopping bags can be described as smooth, the improvement of the material to increase its load-bearing capacity, the appearance has become more and more beautiful, manufacturers will be a variety of trademarks, patterns printed on kraft paper bags, into the streets of shops. Until the mid-20th century, the emergence of plastic shopping bags became another large revolution in the history of shopping bag development. It is lighter, thinner, stronger, and cheaper manufacturing costs and other advantages make the once beautiful kraft paper bags eclipsed.

However, with the "anti-plastic" wind prevailing around the world, environmentalists have begun to focus on the old take away paper bags. McDonald's China began in 2006, gradually in all shops to implement a thermal insulation property of take away paper bags to hold takeaway food, to replace the use of plastic food bags. This initiative has also received a positive response from other businesses, such as Nike, Adidas, and other large consumers of the original plastic bags, who have begun to use high-quality take away paper bags to replace plastic shopping bags.

Located in Nanjing, China, Nanjing Lipack Co., Ltd is a large manufacturer of kraft paper bags, which has been exporting kraft paper bags to various parts of the world and has received wide acclaim. The company verifies the quality of each product before it leaves the factory to ensure that the consumer's rights are fully protected.

The kraft paper bag is a great paper bag that can be reused and has good support properties and does not break easily. Because of their environmental characteristics, kraft paper bags can also be used as paper shopping bags, which are favored by all, especially in European countries where kraft paper bags are almost always used.

Here is the content list:

• Do Kraft paper bags have several practices?

• What are the performance parameters of kraft paper bags?

Do Kraft paper bags have several practices?

(1) small white kraft paper bags, the general number of such bags, the use of a wide range, many customers require such cheap and durable kraft paper bags, usually the practice of such kraft paper bags are machine forming, machine laminated rope, completely by the machine operation.

(2) the practice of medium-sized kraft paper bags, usually, medium-sized packaging bags are machine laminated molding after the human hand sticker rope and made into kraft paper bags, due to kraft paper bag forming equipment by forming size restrictions, and kraft paper bag sticker rope machine can only stick smaller handbag rope, so the practice of kraft paper bags by the limitations of the machine. Many of the bags do not have the means for the machine to complete the sole production, still have to go through manual production.

(3) large bags, with reverse-head kraft paper bags, thicker yellow kraft paper bags, the practice of these kraft paper bags to be built purely by hand, to ensure quality, these types of kraft paper bags can not yet be put into machine production, these types of kraft paper bags production costs are higher, but also very strong, good quality.

(4) regardless of which kraft paper bags are above, if the number is not large enough, generally used purely handmade, because of the machine production of kraft paper bags loss, there is no way to solve the practice of small quantities of medium-sized packaging bags.

What are the performance parameters of kraft paper bags?

(1) Printing: Offset printing, CMYK printing, screen printing

(2) Handle material: twist paper handle bag

(3) Surface treatment: silver print, gold print, embossed or embossed, spot UV, varnish, matt laminate, gold laminate

(4) Size: custom made

(5) Shapes: flat pockets, square bottom open pockets, square bottom valve pockets, one-piece glued bottom bags (for food packaging)

(6) Material: polypropylene, kraft paper, aluminum foil

(7) Stitching method: paper sealed bottom, heat-sealed bottom, glued bottom.

Nanjing Lipack Co., Ltd is dedicated to the production of kraft paper bags that can be used as paper shopping bags. The company has a team of professionals dedicated to quality control and the continuous pursuit of excellence. At the same time, the company offers bespoke 'one-stop' packaging solutions, from initial design to final packaging delivery, having all the systems in place to produce the highest quality, most impactful packaging that can be delivered quickly. If you are engaged in the kraft paper bag business, you can consider using our cost-effective products.

Based on the principle of trying our best to meet customer needs, our company can provide customers with customized retail paper bags. Customers can put forward requirements for the design of retail paper bags according to their preferences and actual user needs. Not only the paper quality used in the retail paper bag can be changed according to customer requirements, but also the handle of the retail paper bag can also be changed. This article will briefly introduce the different types of handles.

Here is the content list:

l Paper handle

l Plastic handle

l Braided handle

Paper handle

The retail paper bag handle shape of this material is more diverse. Let's start with the twisted paper handle. Twisted paper handles are usually made by twisting the kraft paper into a long strip, then cutting it to an appropriate length, and finally sticking its ends on the inside of the retail paper bag. This form of paper retail paper bag handle is relatively tough and not easy to pull off. There is also a flat paper handle. Unlike the twisted paper handle, the cross-section of this handle is flat and different from the round cross-section of the twisted paper handle. This kind of retail paper bag handle has a larger contact area with the user's hand, which means that the force area is larger. Under the same pressure, the pressure received by the retail paper bag user's hand is smaller. The last is the die-cut handle. This design is very material-saving. The process of making it is also very simple, that is, to open an oval hole on the finished retail paper bag, the size is suitable for the average person to penetrate three to four fingers.

Plastic handle

The appearance of the retail paper bag handle described below is very similar to the twisted paper handle mentioned above, but it is made of PP as the main raw material, which is what we often call polypropylene. Plastic handles tend to be stronger and more malleable than fragile paper handles. In addition, it is fixed to the retail paper bag in a perforated manner, which means that it can withstand heavier contents. Generally, wine bags, or retail paper bags for shoes, can consider using this type of handle.

Braided handle

Compared with the retail paper bag handles of the previous two materials, the braided handle is undoubtedly a more friendly handle. We offer two options here, one is a cotton rope, the other is a ribbon handle. The handle made of woven fabric is softer and more comfortable, and it is also more textured, which helps to complement the appearance of the beautifully designed retail paper bag to create a more ideal visual effect. Some luxury stores generally use ribbon handles as the handles of their retail paper bags, because this handle is shiny, feels good, looks more stylish, and is in line with the style of their products.

If you are interested in our products, please consult the official website: www.cnlipack.com. Thank you very much for your support.

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.

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.

The Boutique paper bag is a kind of handbag that people are more common and more commonly used in life. Boutique paper bags have become a major demand in the market for many reasons, not only because of their beautiful appearance and their practicality but also to make them improve our sense of ritual of life. So what are its advantages?

Here is the content list:

•Energy saving

•Huge market space

•Green environmental protection

•Suitable for all occasions

Energy saving

The production of Boutique paper bags can save a lot of oil resources. Traditional 1 ton of plastic bags to consume at least 1 ton of polyethylene petroleum products, also equal to the consumption of more than 3 tons of crude oil, Boutique paper bags of raw materials is paper, so you can save a lot of crude oil.

Huge market space

The demand for Boutique paper bags is increasing day by day as the material is inexpensive and environmentally friendly and non-toxic. Therefore it has a huge market space.

Green environmental protection

The benefit of the Boutique bag is its environmental protection because the times are calling on everyone to be environmentally friendly, so the gift of environmentally friendly Boutique paper bags are bound to be loved by consumers, so the boutique bags are now the normal phenomenon of fire. If people use Boutique paper bags can effectively reduce the use of plastic bags, which can reduce the pollution of white pollution. Boutique paper bags have excellent performance, it is in strict accordance with national environmental standards, using environmentally friendly materials made, so it is easy to degrade. Boutique paper bags can be reused many times. Not only that, but it is also exquisite and versatile, it can be printed with beautiful patterns, novel style, and looks very classy. For the care of the environment, we can start from the use of some small items around us, such as gift paper bags is a good place to start.

Suitable for all occasions

One of the best parts of a Boutique paper bag is that it is suitable for any occasion you can imagine. If your friend has moved into a new apartment, then you can send a gift wrapped in a boutique paper bag. If you are celebrating your loved one's or parent's birthday, sending a gift with a boutique bag will give him or her a special while surprise.

Everyone likes to live in a world of birds and flowers, if we want to live in such an environment, we should start to take action to protect our environment, to reduce the use of plastic bags, you can choose to use environmentally friendly Boutique paper bags. If you need a Boutique paper bag, you can consider our cost-effective products. Nanjing Lipack Co., Ltd are non-toxic and tasteless, perfect after-sales service, you can have no worries. The Boutique paper bags is easy to use, and beautiful to look at, and adds another view to your life.