NEWS
09
2024
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07
Cellophane packaging bags: a new choice for environmental protection, leading the new trend of sustainable development
Cellulose is a magical substance discovered in 1833, deeply embedded in the cell walls of plants. It is a polysaccharide made of long chains of glucose molecules tightly woven together. When the hydrogen bonds of these cellulose chains hug each other tightly, they form a tough substance called microfibrils. Its rigidity makes cellulose stand out in the field of packaging bags and become the preferred material for environmental protection.
Cellulose is a magical substance discovered in 1833, deeply embedded in the cell walls of plants. It is a polysaccharide made of long chains of glucose molecules tightly woven together. When the hydrogen bonds of these cellulose chains hug each other tightly, they form a tough substance called microfibrils. Its rigidity makes cellulose stand out in the field of packaging bags and become the preferred material for environmental protection.
Regenerated cellulose packaging bags, commonly called fiberglass, are as transparent as crystals, as lightweight as cicada wings, and have biodegradable properties. So, how was this magical cellophane bag born?
The raw materials used to make cellophane come from sustainable natural resources such as cotton and wood. First, these raw materials are converted into white soluble pulps with a cellulose content as high as 92% to 98%. Subsequently, this original cellulose pulp has undergone a magnificent transformation: under the catalysis of alkali, it dissolves and ages for several days, completing the transformation to silk paper. Subsequently, the addition of carbon disulfide converts the mercerized pulp into a cellulose xanthate or viscose solution. Subsequently, the solution miraculously returns to the cellulose in a mixture of sodium sulfate and dilute sulfuric acid. Finally, after three careful washes, the sulfur was removed, the film was bleached, and glycerin was added to enhance its durability, finally resulting in biodegradable glass fibers.