Triple C International (Shenzhen) Co.,Ltd.

Home> Industry Information> What's corrugated cardboard box compressive strength of paper on its impact

What's corrugated cardboard box compressive strength of paper on its impact

December 18, 2019

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Triple C International (ShenZhen) Co.,Ltd. was established in 2018. It`s a professional foreign trade company engaged in import and export trade, and carries out business operations such as international trade, cooperative production and intermediary trade. The company mainly provides high-quality OEM-product and ODM-product services for customs in Japan, Southeast Asia, Europe and Unite States, and has a professional technical team that provides hundreds of OEM-product services for dozens of customers, and has dozens of excellent suppliers. The company mainly provides sewing products, plastic products, paper products, wooden products, household products and other OEM services, including handbags, gift boxes, Storage Boxes, stationery boxes, kid toys, Paper Boxes, school supplies, office supplies and other products import and export business.



Paper test

In the ring pressure test, the ring pressure test of corrugated medium base paper is divided into longitudinal ring pressure strength and horizontal ring pressure strength. It is necessary to pay attention to the ring pressure test sampling test. The vertical ring pressure strength sampling needs to be consistent with the paper width direction. The lateral crush strength should be sampled in the same direction as the length of the web. During the test, we will find that although the fiber arrangement of the long web machine tends to disorder, the transverse crush strength is always higher than the longitudinal crush. The strength is low, and as a 0201 corrugated box, the horizontal ring pressure strength is consistent with the direction of force of the corrugation, that is to say, when the grade of the paper is judged or the compressive force is calculated, the corrugated paper is horizontally looped. Compression strength is the effective strength of the test. The fourdrinier paper machine has increased the number of fibers in the transverse ring pressure test while performing disordered arrangement of the fibers, thereby enhancing the lateral crushing strength of the corrugated paper, and at the same time enhancing the interfiber fibers due to disordered arrangement of fibers. The firmness, in turn, ensures the stability of the compressive strength of the corrugated carton, which results in a reduction in the drop in the pressure resistance value between the individual carton boxes.

Regarding the value of the ring pressure in the compression formula, we should follow the test results of the standard environment to reduce the error between the test values due to changes in the test environment. We all know that the humidity of the air will have a certain impact on the crushing strength of the corrugated paper and the pressure resistance of the carton. If we test the base paper in a too dry environment, the force value of the ring pressure test will be higher than it actually is. If the use environment is too humid, we use this higher force value to carry out the compression design, which will inevitably cause unsafe quality risks; conversely, if the test environment is too humid and the use environment is too dry, the paper will experience a ring pressure test. It will be very low, and we use this very low force value to design the compressive strength, which is bound to waste raw materials. When using the test value for pressure calculation, we first need to verify it within our company. Under normal circumstances, we should guarantee a safety factor for the calculated value. Generally, we choose 1.2, that is, the calculated value is 1, and the actual compression should be Can reach 1.2 times the calculated value to prevent the difference between carton individuals or some external environment changes caused by insufficient pressure.

Tensile strength, the tensile strength of corrugated base paper depends on the fiber structure of the base paper and the binding force between the fibers. The tensile strength not only affects the resistance of the base paper in the machine during use, but also affects the tensile strength of the base paper. After the carton is formed, the compressive quality, usually, if the paper's ring crush strength is very good, but the cracking length and tensile strength are not good, it will often cause the carton deformation in the compression test, the final edge shape Such as the accordion, this is because when the carton is subjected to the pressure test, due to the poor texture or structure of the fiber or the poor connection between the fibers, the fiber at the edge of the pressure line is first stressed, and this weak fiber is not very good. The force exerted on the carton is conveyed to the entire carton, except that the passive part is under pressure. With the local collapse of the edge, the force part gradually moves toward the middle of the box, and a deformation test is formed like an accordion. . However, if the tensile strength is good, no such situation will occur. The carton will bear a great deal of pressure under very small deformation. If it is overweighted, the carton will collapse from the center of the box face because the whole cannot withstand the pressure.

The tightness of the paper tests the pressing effect of the base paper during the production process. The closeness of the tightness will affect the tightness between the fibers and then affect the ring-press strength and tensile strength of the base paper, and ultimately affect the compressive strength of the carton. Because the tightness of the paper is not enough, it also affects the moisture absorption of the carton, which makes the carton excessively absorb moisture during use or storage and reduces the compressive strength of the carton itself.

In the pressure resistance of the carton, the base paper plays a decisive role. We need to pay a certain amount of effort to detect and determine various kinds of base papers. We must rationally configure all kinds of papers to produce cartons that meet the physical performance requirements. The carton pressure resistance is a comprehensive control process. In the production process, the impact on the carton compression caused by the irrational process should be minimized. The loss of the compressive strength of the carton is equivalent to a waste of the original paper. This is the biggest hidden waste. It will inevitably create a vicious cycle, which will greatly increase the production cost of the carton. At the beginning of production, it will be well aware of the performance of various base papers. In actual production, paper can be dispensed as required.

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