Understand the production process of corrugated boxes?
Information summary
The corrugated boxes made are better than corrugated base paper, which is an important raw material. In the paper industry, its proportion accounts for more than% of the total output of paper and cardboard. The daily corrugated boxes are more likely to be used...
The corrugated paper box made is better than the important raw material corrugated base paper. Its proportion in the paper industry accounts for more than% of the total output of paper and cardboard. The probability of daily use of corrugated paper boxes is increasing. The demand for will increase day by day. The demand for online shopping is also gradually increasing. The logistics industry has continuously improved the quality requirements of packaging cartons, and the requirements for the quality of corrugated paper itself will also be higher and higher. The only factor that affects its quality is not equipment. What is important is the management and control of key processes. If the company has a certain 'prejudice' in the production of corrugated base paper, which seems to be a low-grade paper, and neglect to strictly follow the process requirements To organize production, so it may cause fluctuations and differences in the quality of corrugated paper products. All aspects still need to be strictly controlled.
Reasonable selection of raw materials and control of proportioning. The main raw material for domestic production of corrugated paper is recycled waste carton, and the recycled waste carton or the fiber quality will generally be poor after repeated recycling. In the production process, the key to the production of high-quality corrugated paper is to carefully select the raw material waste paper and use it with other high-quality waste paper before pulping. Reasonable design of the production process For seemingly simple corrugated base paper, the product positioning must also be considered in the process design. The screening and purification process in the waste paper pulping process must be scientifically designed according to the quality of the selected waste paper raw materials. From the selection of the screen holes of the pulper to the selection and design of the rough selection and selection of the hole and seam combination process, as well as the selection of the tailings of each section, and the reasonable design of the purification process, the quality of the corrugated paper is directly affected. Practice has proved that the earlier the removal of non-fibrous impurities in waste paper, the more beneficial the subsequent processes and product quality. For example, the use of bulk packaging machines and drum pulpers are effective equipment for removing impurities before the waste paper is fully broken. In the process of producing corrugated paper, some non-fibrous wastes such as plastic foam particles, silt, etc. must be removed as much as possible through the screening and purification process equipment to avoid the accumulation of non-fibrous impurities in the production process and resulting in pulping efficiency. It can reduce the production cost and ensure the quality of the finished paper, and the tailings can be reused after beating and other treatments as much as possible. This can help control the production cost and ensure the quality of the finished paper. Control of key process The commonly used surface sizing agent of corrugated base paper is corn starch, which is mixed with water repellent after modified, boiled and gelatinized to evenly coat the surface of the paper to improve the ring compressive strength and water resistance of the paper. The strength of the corrugated base paper before surface sizing, the uniformity and tightness of the paper, and the degree of fiber splitting play an important basic role in the strength of the corrugated base paper after sizing. The tightness of the base paper is high, the film-forming properties of the sizing material are good, and the sizing uniformity of the front and back sides is stable, and the transverse ring compression strength of the finished paper is correspondingly high. In particular, the tightness of the finished paper is one of the important indicators that must be controlled in the process of producing corrugated base paper. The paper with high tightness has good stiffness and correspondingly higher ring compression strength. Specifically, it can be pressed, dried and surface-applied. Glue is controlled. If the corrugated base paper wants to obtain high and stable ring compressive strength, it must rely on the sizing agent (water repellent) to give the paper water-repellent properties. Because the fiber and starch themselves are hydrophilic, if the corrugated base paper 're-moisturizes' after being strengthened , The paper strength will decrease accordingly.
Focus on the customized production of cosmetic-grade packaging. The cartons are made of high-quality and high-pressure corrugated paper. It has multiple high-speed automatic production lines and high-standard production processes. Each production link has strict quality inspection standards and an independent quality inspection department. Strictly control product quality,
Welcome to the customization of all kinds of corrugated box production, and the packaging is looking for cosmetic packaging materials, professional and more reliable!