Compared with developed countries, there are gaps in the shape and economic performance of China's paper drum packaging containers. Therefore, China needs to vigorously develop full paper and square paper drums.
The application of paper drums in medicine and other fields The pharmaceutical powder packaging in the pharmaceutical industry in China is almost entirely packed in paper drums. When packaging medicines, according to the different kinds of intermediate powders and powders, different sizes of paper barrels can be selected and lined with plastic packaging bags for weighing and transportation. Due to its high strength, elasticity, and non-oxidatively-contaminated packaged articles, compared with steel drums, it has the advantages of anti-static properties, light weight, easy recycling, short processing cycles, and low cost, and is widely used by pharmaceutical companies of all sizes in the country. application. It is not only used in the field of pharmaceutical packaging, but also used in a large number of chemical, food, indigenous, hardware, minerals, building materials, electrical and mechanical, dangerous goods, military explosives and defense industry and other fields, and its application has become increasingly widespread.
Application Types of Paper Containers Packaging Containers - Definitions of paper drums refer to rigid drums with a barrel made of paper or cardboard plus adhesive and a bottom or lid made of the same material or other materials, in the bottom and lid There is positioning performance between them so that they can be stacked and stored. At present, there are more than 500 paper barrel production factories in China, covering more than 20 provinces and cities across the country. Because of the limited transportation costs, the sales of paper barrels are greatly affected by regional influences. All types of large-scale raw material medicine and pharmaceutical companies in the country have their own Attached paper barrel production companies are matched to meet the needs of pharmaceutical packaging. From the point of view of packaging applications, China can produce paper barrels for general chemical products, and can also produce paper barrels for international dangerous goods packaging and export. The paper drums used for the export of pharmaceutical raw materials must be strictly inspected by the relevant State Administration of Commodity Inspection and have export licenses for production. Different from the selected raw materials, the type of application of the paper bucket can be roughly divided into two types. The first type is a full-paper paper drum. Its external shape is divided into a cylindrical shape and a square shape. The raw material used is a high-strength paperboard paper, which is used exclusively. On the barrel forming equipment.
Since all paper pulp drums use high-strength paperboard, most of which are papery fibers and wood fibers, they are easy to recycle and reuse. If they need emergency treatment, they can be burned and no toxic gases are produced. The raw materials of the paper pulp drum and the processing of the whole production process to the disposal of the waste do not pollute the environment. As the product packaging is exported, it is generally welcomed by foreign merchants and is a packaging container for vigorous development in the future. The difference between the second type of paper drum and the full paper paper drum is that the top and bottom of the circular paper drum are reinforced with iron sheet (galvanized sheet), and the top and bottom of the paper drum are plated. Zinc plate or five-wood board made. There is a rolled concave ring groove in the upper and lower mouth of the circular paper drum, which is usually called the barrel hoop. The upper barrel hoop is located at the barrel mouth, and the bottom barrel hoop is the bottom barrel hoop. The hoop hoop plays an important role. It is mainly to ensure that the paper drum has sufficient strength to maintain the full roundness at the mouth of the barrel, and also to reinforce the closure at the mouth of the barrel, enabling the barrel lid to be well positioned and interchangeable. The function of the lower barrel hoop is to fix the barrel and the plywood into a firm whole. In terms of strength and bearing weight, the paper drum structure reinforced by galvanized sheets under the same volume is higher than all paper paper drums. When selecting the items to be loaded, the items contained in the barrel are large and the weight exceeds 40 kg. Kinds of paper drums.
The current situation of the raw material and strength of the barrels Because the structure of the barrels used in China is a multi-layer cardboard composite processing, the production process is based on the method of spiral winding, of course, the choice of the cardboard material is to determine the quality of the quality of the barrel. The key is that for cardboard and galvanized board, China can meet the requirements for the production of paper barrels. Domestic barrel makers use cardboard with a basis weight of around 300-360 g/m2. In order to ensure the strength of the drum and the stiffness of the drum at the same time, the ring-press strength of the raw material board shall not be less than 18N·m/g (refer to 300m2g/quantitative board), the burst resistance index shall be no less than 3.0Kpa·m2/g, The degree is not less than 50 times and the moisture content is not more than 10%. The strength and quality analysis of the second type of paper drums produced in China, in addition to the raw materials used in the paperboard, are related to the thickness of the paper drums and the axial force acting on the paper drums. When the selected raw materials have been determined and the circumference is certain, the vertical pressure strength of the paper drum should be greater than 8000N, the lateral pressure strength should be greater than 4000N, and the puncture strength should be greater than 10J. The quality of the current application of the carton mainly depends on the external deformation of the carton and its own strength, and the deformation of the carton is proportional to the pressure on the side of the carton and the circumference of the circle, and the elastic modulus of the material of the carton, the carton The thickness and number of layers are inversely proportional, that is to say, the greater the lateral pressure acting on the paper drum and the greater the circumferential length of the paper drum, the greater the external deformation of the paper drum after compression and deformation, and the elastic modulus of the paper drum material. Large, large number of layers and thickness are less deformed. In short, in the production of raw materials for paper drums, in order to make the stress of the paper drums small, it is necessary to increase the number of rewinder layers of the paper drums and increase the thickness of the paperboard. When selecting raw materials, a cardboard material with a high elastic modulus should be used. With a large number of layers and a small drum diameter, the overall quality will be better.
The development trend of the shape of the bucket in the future At present, the shape and structure of the barrels in our country are relatively single, and most of them are in the form of circular structures. The "Packaging Container Drum" standard formulated by China is for the circular drum pattern. From the perspective of the developed countries’ development situation, the paper barrels have undergone changes in various structural forms. They are more likely to stack up and save space for transportation. At the international level, the economy of paper barrel packaging is a major trend in packaging, and China has Many cylindrical packaging drums are not perfect from an economic point of view. After calculation, the cylindrical drums occupying the same space for transport trays are about a quarter smaller than the square drums. That is to say, less than a quarter of the contents are contained. For circular drums, which are mainly used for clothing and transportation, square drums are much more economical than round drums. Not to mention, rectangular drums are easier to achieve beautiful and generous features. At present, China has begun to produce squared paper drums. This will become the future. development trend. In addition, with the development of economy, there have been an increasing number of counterfeit and fake goods, and the patented technology for theft-prevention and tamper-evident flaps, such as the structure of paper drum closures, has undergone various changes, such as the opening of upper flaps and locking. There are also new types of forms. These new shapes are not only easy to open, but also relatively mature in technology. At present, our country can only have different degrees of application on some small paper drums.
The status quo of China's paper barrel enterprise structure Most of China's barrel making industry is scattered around small-sized enterprises, and its competitiveness is poor. In order to have great development, there are restrictions on all aspects. Such an industry structure is extremely incompatible with the growing market economies of scale. In order to increase the competitiveness of enterprises, the enterprises have a relatively rapid development in terms of technology and economy, and must change from small-scale production to large-scale base production. At present, there have been a number of strong domestic production enterprises, and have been in line with the national Jialing River quality assurance system, and passed ISO9000 quality certification, which indicates that China's quality control technology has a breakthrough in development. The establishment of a quality assurance system has provided assurance for the quality improvement of the paper barrel industry, and has also made the paper barrel a higher grade in terms of production, technology and services. For small and medium-sized paper barrel enterprises, various technical quality management systems need to be established and effectively controlled. Specifically, enterprises must establish a full production process management system, including a raw material procurement system, a key process control system, and purchases. Inspection system, first inspection system, operator self-checking system, process mutual inspection system, quality inspector inspection system, finished product inspection system, etc., and cataloging, use, change of the recovery file, storage, handling of the identification method and procedures. When it is necessary to issue and revoke the obsolete management system in a timely manner, it is necessary to ensure that each site uses the effective version of the corresponding system. To carry out process quality control over the entire production process of a company, first of all, formulate the technical operating procedures and inspection standards for the various processes in the process of birth products, establish key processes that affect product quality, and conduct continuous supervision to ensure that each process in the production process is Controlled status, and regular review of the control of production processes, corrective measures taken in time, resolving anomalies, and completing assessment records. (To be continued)