During the production process of disposable paper straws, everyone may notice a detail - the rolled edges of the paper straws are always very smooth and tight, without any roughness. This is not the credit of the base paper itself, but because lubricating oil plays an indispensable role in the production process.
The forming process of paper straws involves multiple steps such as rolling, gluing, shaping, and cutting, among which the edge rolling stage is particularly crucial. When curling the edges, the paper needs to be wound around the tube and pressed at high speed. If the friction is too large, problems such as paper surface roughness, edge wrinkling, breakage or powder shedding are likely to occur. This not only affects the appearance but also reduces the sealing performance and strength of the straw.
To make the edge rolling smoother and the forming tighter, food-grade lubricating oil needs to be added to the molds, guide wheels and other positions of the equipment. Lubricating oil can form an extremely thin protective film between paper and metal parts, reducing friction and resistance and making it easier to shape the paper. At the same time, it can also reduce equipment wear and tear, extend mechanical life and improve production efficiency.
However, not all lubricating oils can be used in the production of paper straws. Because paper straws will eventually come into direct contact with beverages, the requirements for lubricating oil are extremely high: it must meet food-grade standards (such as FDA, NSF H1 certification) to ensure safety, no pollution and no odor.
It is precisely because of the professional food-grade lubricating oil that the rolled edges of the paper straws can be so smooth and tight, without powder shedding or fuzzing, and can also improve the overall product quality. Baoxing recommends using the BX-308 series food-grade lubricating oil, which is widely used in the disposable paper products industry, such as paper cups, paper bowls, paper straws, etc., perfectly solving lubrication and safety problems.
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