Paper bags are roughly divided into two categories: ordinary packaging bags and delicate shopping bags. Ordinary packaging bags are produced by a rotary printing bag making machine. It has the advantages of fast production efficiency, and the disadvantage is that the paper bag is rough and inexhaustible, so most of these paper bags are used for general commodity packaging. As for the exquisite shopping bags, they are printed in color on a sheet of paper, pp-framed or bronzed, and then produced by manual or semi-automatic machines by a bag-making factory, and finally tied with artificial ropes as handles, to complete the paper bag lifting. Its advantages: paper bags can be made in any situation, the disadvantage is the slow production speed. Most of these advanced shopping bags are used for noble product packaging, or as gift bags, or as advertising bags for various product activities.
        Shopping bags should first be an extension of corporate image and product advertising strategies, so making shopping bags must be environmentally friendly, beautiful, durable. The structure is compact, and the hot-melt adhesive is used to make the bag loose. The automatic bag-making machine is used to bond all parts of the shopping bag to form a compact structure. After processing, the "white glue" is used to paste the bag body, and then the artificial rope is used as a handle. Therefore, there are often mistakes in removing the loose handle. The paper bag surface has no creases, and the adhesion is accurate and beautiful. The automatic bag making machine is used to make shopping bags. Therefore, the bag surface has no creases, and the hot-melt adhesive has strong fixing force and dries quickly, so the adhesion is accurate and beautiful. The traditional paper bag processing is to fold the sticker bag by hand, so the bag surface has fold lines, and the white glue dries slowly. When the amount is too large, the glue will overflow and slide, so the bag shape is poor.
        Shopping bag design specifications Manufacturing principles The top edge of the paper bag is uniformly folded within 60mm to strengthen the grip of the handle. The width of the bottom edge of the paper bag is 15mm. To strengthen the bearing capacity of the bottom of the bag (the width of the side is reduced by 15mm), the edge of the paper bag is uniformly 30mm. The finished shopping bag should be marked with 2 folded edges, 6 on the top edge, and 6 on the bottom edge, so that the paper bag can be correctly formed. The size of the shopping bag should be in accordance with the number of papers, in order to facilitate economic benefits. The paper direction should be parallel to the "height" of the paper bag to facilitate the folding of the paper.
        Applicable paper: Kraft paper / kraft paper is tough and can be divided into: white kraft paper, yellow kraft paper, two-color kraft paper and other papers: on paper, it can also be: pure kraft and copper plate kraft, basically from 80 to 120 pounds Kraft paper is suitable for making all kinds of shopping bags. Coated paper / coated paper is suitable for high-quality color printing, so art shopping bags are usually made with coated paper of 120 to 150 pounds. Due to the low toughness of coated paper, pp film is generally used to strengthen its toughness. Art paper / art paper is a vague term used to describe processed and dyed paper. Generally, art paper is tougher than coated paper, and the paper is diverse. Many art papers of 100 to 150 pounds are quite suitable for making shopping bags, but the paper cost is higher. Special paper / For example: Nanya Synthetic Paper, 3M Tvik Paper, pp imitation kraft paper, etc.

         Paper bags are generally made of white cardboard, whiteboard, coated paper, kraft paper, and a small amount are made of special paper. According to the method of bag edge, bottom and back cover, there are open-bottomed bottom bags, low open-angle adhesive bags, and valve-type stitching There are four types of paper bags, such as bags, valve-type flat hexagonal end-bottom adhesive bags. Because of the style of the opening, the name of the paper bag appeared. Some paper bags have a handle. Use more than four layers of kraft paper bags to package cement, fertilizer and other products. Depending on the properties of the package, different paper bag types are used. Other paper bags: Including archival paper, envelopes, handbags, cement bags, feed bags, waxed paper bags, fertilizer bags, laminated paper bags, four-layer paper bags, medicine bags, clothing bags, food bags, shopping bags, gift bags, drinks bags. Different uses, the designed size and specifications, including the thickness of the paper bag paper, have many requirements, so it must be customized according to the actual situation, to achieve twice the result with half the effort, economical and applicable purposes, to reduce material savings, green environmental protection, corporate capital investment, and provide more More protection.
        According to the bag edge, bottom and back cover methods, there are four paper bag types such as open seam bottom bag, open adhesive corner bottom bag, valve stitching bag, valve flat hexagonal end bottom adhesive bag, and more than four layers of kraft paper. Bags, packaging cement, fertilizers and other products. Depending on the properties of the package, different paper bag types are used.
        Other paper bags: including cement bags, feed bags, waxed paper bags, fertilizer bags, laminated paper bags, four-layer paper bags, medicine bags, boutique packaging paper bags, clothing paper bags, gift bags, food bags.

        The paper bag machine we often use is much faster than manual packaging, and we can see that there are many requirements on our packaging. Let me give you an example, such as candy packaging. In the traditional manual packaging of sugar, only a dozen pieces can be made in one minute.
       The paper bag machine can effectively guarantee the packaging quality. According to the requirements of the packaged goods, the mechanical packaging of the paper bag machine can be obtained in accordance with the required shape and size. And what can be seen above is that manual packaging cannot guarantee. Secondly, this is especially important for export commodities. At this time, only mechanical packaging can achieve packaging standardization, product standardization, and meet the requirements of collective packaging.
       Finally, the paper bag machine can achieve operations that cannot be achieved by manual packaging. We see that in some packaging operations, the paper bag machine can make us more convenient to use. Vacuum packaging, inflatable packaging, skin-packing, filling, etc. are not possible by manual packaging, and can only be achieved with a paper bag machine.

        The square bottom portable paper bag machine is mainly used for packaging of garment products, packaging of boots, packaging of various gifts, corporate image promotion bags, etc. Because it is easy to carry and easy to degrade, it can recycle recycled paper, reduce air pollution and protect the environment. Therefore, it is one of the most useful green products. The development of paper bag machinery has shown the momentum of integrating electromechanical, gas, liquid, light and magnetism. The production is highly efficient, and the product energy saving and recycling, high-tech practical and intelligent has become a trend.
        There are two main types of square-bottomed paper bag machines on the market: one is a roll-type portable paper bag machine; the other is a single-sheet portable paper bag machine. Both devices are equipped with automatic paper feeding, automatic gluing, automatic paste bottom, and automatic output. However, there are still some shortcomings; first, after the finished paper bag is completed, there is an indentation on the front of the paper bag, which affects the appearance of the product; second, the finished paper bag needs to manually paste a bottom paper on the bottom of the bag to enhance the strength of the bottom of the paper bag; The handle of the paper bag needs to be manually pasted; the fourth is the production efficiency is low, about 40-60 per minute; the fifth is the limited range of paper, the paper weight is between 70-200g/m2. In the shortcomings of the domestic bag making machines, Germany and Japan have basically solved the above problems. The purpose of the development of the GY square bottom paper bag machine is to achieve or approach the world advanced level and promote the development of the domestic square bottom paper bag machine.

        The current changes in market demand are a good development opportunity for paper bag machine enterprises. On the one hand, the demand for people is improving, on the other hand, the technology of paper bag machine enterprises is in urgent need of upgrading. Under such pressure, if enterprises can find The entry point to produce equipment that meets people's needs, then the prospects of the company is good, let's see the performance of China's paper bag machine enterprises under pressure.
        Now let's take a look at the current situation of paper bag machine enterprises. Because China has a large market, paper bag machines have enough room for development. However, according to the current situation, how can paper bag machines meet the needs of the market and break through existing ones? The bottleneck, the development of new equipment, is a feasible solution, and it is related to the future development of the paper bag machine industry. At present, the demand for food paper bag machines has increased greatly. This is largely due to concerns about food safety. Future food paper bag machinery will cooperate with industrial automation, promote the overall level of packaging equipment, and develop multi-functional, high-efficiency, low-consumption. Food packaging equipment. Many companies have an annual output value of tens of millions less than a few million. This phenomenon indicates that the Chinese packaging industry has occupied a dominant position in the market. However, due to the rapid development, some enterprises will face bankruptcy or professionalism, and at the same time, some of them will join the ranks, which is extremely unstable and seriously hinders the stability of their development. Therefore, we should consider from the perspective of market changes, and we must ensure stability and development.
        The domestic paper bag machine enterprises will play a more important role in the future. Correspondingly, the pressure we face is even greater, not only from the pressure of technology upgrades, but also from international competition. According to the current economic development direction of China, in the next few years, the development of various industries in China will move closer to the world's advanced level, keep up with the pace of the times, and promote the domestic economy to be stronger, which will also stimulate market consumption and increase the paper bag machine. Market demand. On the other hand, the disorderly competition between domestic industries and the pressure from the international market are all we should pay attention to. Only by constantly innovating can we stand and develop well in this huge market.